--- loncom/lonnet/perl/lonnet.pm 2003/11/10 23:57:49 1.446 +++ loncom/lonnet/perl/lonnet.pm 2021/05/04 18:47:38 1.1451 @@ -1,7 +1,7 @@ # The LearningOnline Network # TCP networking package # -# $Id: lonnet.pm,v 1.446 2003/11/10 23:57:49 albertel Exp $ +# $Id: lonnet.pm,v 1.1451 2021/05/04 18:47:38 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -27,37 +27,129 @@ # ### +=pod + +=head1 NAME + +Apache::lonnet.pm + +=head1 SYNOPSIS + +This file is an interface to the lonc processes of +the LON-CAPA network as well as set of elaborated functions for handling information +necessary for navigating through a given cluster of LON-CAPA machines within a +domain. There are over 40 specialized functions in this module which handle the +reading and transmission of metadata, user information (ids, names, environments, roles, +logs), file information (storage, reading, directories, extensions, replication, embedded +styles and descriptors), educational resources (course descriptions, section names and +numbers), url hashing (to assign roles on a url basis), and translating abbreviated symbols to +and from more descriptive phrases or explanations. + +This is part of the LearningOnline Network with CAPA project +described at http://www.lon-capa.org. + +=head1 Package Variables + +These are largely undocumented, so if you decipher one please note it here. + +=over 4 + +=item $processmarker + +Contains the time this process was started and this servers host id. + +=item $dumpcount + +Counts the number of times a message log flush has been attempted (regardless +of success) by this process. Used as part of the filename when messages are +delayed. + +=back + +=cut + package Apache::lonnet; use strict; -use Apache::File; -use LWP::UserAgent(); -use HTTP::Headers; -use vars -qw(%perlvar %hostname %homecache %badServerCache %hostip %iphost %spareid %hostdom - %libserv %pr %prp %metacache %packagetab %titlecache %courseresversioncache %resversioncache - %courselogs %accesshash %userrolehash $processmarker $dumpcount - %coursedombuf %coursenumbuf %coursehombuf %coursedescrbuf %courseresdatacache - %userresdatacache %usectioncache %domaindescription %domain_auth_def %domain_auth_arg_def - %domain_lang_def %domain_city %domain_longi %domain_lati $tmpdir); +use HTTP::Date; +use Image::Magick; +use CGI::Cookie; + +use Encode; + +use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir $deftex + $_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease + %managerstab $passwdmin); + +my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash, + %userrolehash, $processmarker, $dumpcount, %coursedombuf, + %coursenumbuf, %coursehombuf, %coursedescrbuf, %courseinstcodebuf, + %courseownerbuf, %coursetypebuf,$locknum); use IO::Socket; use GDBM_File; -use Apache::Constants qw(:common :http); use HTML::LCParser; use Fcntl qw(:flock); -use Apache::loncoursedata; -use Apache::lonlocal; -use Storable qw(lock_store lock_nstore lock_retrieve freeze thaw); -use Time::HiRes(); +use Storable qw(thaw nfreeze); +use Time::HiRes qw( sleep gettimeofday tv_interval ); +use Cache::Memcached; +use Digest::MD5; +use Math::Random; +use File::MMagic; +use Net::CIDR; +use LONCAPA qw(:DEFAULT :match); +use LONCAPA::Configuration; +use LONCAPA::lonmetadata; +use LONCAPA::Lond; +use LONCAPA::LWPReq; +use LONCAPA::transliterate; + +use File::Copy; + my $readit; +my $max_connection_retries = 20; # Or some such value. + +require Exporter; -# --------------------------------------------------------------------- Logging +our @ISA = qw (Exporter); +our @EXPORT = qw(%env); + + +# ------------------------------------ Logging (parameters, docs, slots, roles) +{ + my $logid; + sub write_log { + my ($context,$hash_name,$storehash,$delflag,$uname,$udom,$cnum,$cdom)=@_; + if ($context eq 'course') { + if (($cnum eq '') || ($cdom eq '')) { + $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + } + } + $logid ++; + my $now = time(); + my $id=$now.'00000'.$$.'00000'.$logid; + my $ip = &get_requestor_ip(); + my $logentry = { + $id => { + 'exe_uname' => $env{'user.name'}, + 'exe_udom' => $env{'user.domain'}, + 'exe_time' => $now, + 'exe_ip' => $ip, + 'delflag' => $delflag, + 'logentry' => $storehash, + 'uname' => $uname, + 'udom' => $udom, + } + }; + return &put('nohist_'.$hash_name,$logentry,$cdom,$cnum); + } +} sub logtouch { my $execdir=$perlvar{'lonDaemons'}; - unless (-e "$execdir/logs/lonnet.log") { - my $fh=Apache::File->new(">>$execdir/logs/lonnet.log"); + unless (-e "$execdir/logs/lonnet.log") { + open(my $fh,">>","$execdir/logs/lonnet.log"); close $fh; } my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3]; @@ -69,8 +161,11 @@ sub logthis { my $execdir=$perlvar{'lonDaemons'}; my $now=time; my $local=localtime($now); - my $fh=Apache::File->new(">>$execdir/logs/lonnet.log"); - print $fh "$local ($$): $message\n"; + if (open(my $fh,">>","$execdir/logs/lonnet.log")) { + my $logstring = $local. " ($$): ".$message."\n"; # Keep any \'s in string. + print $fh $logstring; + close($fh); + } return 1; } @@ -79,49 +174,314 @@ sub logperm { my $execdir=$perlvar{'lonDaemons'}; my $now=time; my $local=localtime($now); - my $fh=Apache::File->new(">>$execdir/logs/lonnet.perm.log"); - print $fh "$now:$message:$local\n"; + if (open(my $fh,">>","$execdir/logs/lonnet.perm.log")) { + print $fh "$now:$message:$local\n"; + close($fh); + } return 1; } +sub create_connection { + my ($hostname,$lonid) = @_; + my $client=IO::Socket::UNIX->new(Peer => $perlvar{'lonSockCreate'}, + Type => SOCK_STREAM, + Timeout => 10); + return 0 if (!$client); + print $client (join(':',$hostname,$lonid,&machine_ids($hostname),$loncaparevs{$lonid})."\n"); + my $result = <$client>; + chomp($result); + return 1 if ($result eq 'done'); + return 0; +} + +sub get_server_timezone { + my ($cnum,$cdom) = @_; + my $home=&homeserver($cnum,$cdom); + if ($home ne 'no_host') { + my $cachetime = 24*3600; + my ($timezone,$cached)=&is_cached_new('servertimezone',$home); + if (defined($cached)) { + return $timezone; + } else { + my $timezone = &reply('servertimezone',$home); + return &do_cache_new('servertimezone',$home,$timezone,$cachetime); + } + } +} + +sub get_server_distarch { + my ($lonhost,$ignore_cache) = @_; + if (defined($lonhost)) { + if (!defined(&hostname($lonhost))) { + return; + } + my $cachetime = 12*3600; + if (!$ignore_cache) { + my ($distarch,$cached)=&is_cached_new('serverdistarch',$lonhost); + if (defined($cached)) { + return $distarch; + } + } + my $rep = &reply('serverdistarch',$lonhost); + unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' || + $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' || + $rep eq '') { + return &do_cache_new('serverdistarch',$lonhost,$rep,$cachetime); + } + } + return; +} + +sub get_servercerts_info { + my ($lonhost,$hostname,$context) = @_; + return if ($lonhost eq ''); + if ($hostname eq '') { + $hostname = &hostname($lonhost); + } + return if ($hostname eq ''); + my ($rep,$uselocal); + if ($context eq 'install') { + $uselocal = 1; + } elsif (grep { $_ eq $lonhost } ¤t_machine_ids()) { + $uselocal = 1; + } + if (($context ne 'cgi') && ($context ne 'install') && ($uselocal)) { + my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0]; + if ($distro eq '') { + $uselocal = 0; + } elsif ($distro =~ /^(?:centos|redhat|scientific)(\d+)$/) { + if ($1 < 6) { + $uselocal = 0; + } + } elsif ($distro =~ /^(?:sles)(\d+)$/) { + if ($1 < 12) { + $uselocal = 0; + } + } + } + if ($uselocal) { + $rep = LONCAPA::Lond::server_certs(\%perlvar,$lonhost,$hostname); + } else { + $rep=&reply('servercerts',$lonhost); + } + my ($result,%returnhash); + if (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') || + ($rep eq 'unknown_cmd')) { + $result = $rep; + } else { + $result = 'ok'; + my @pairs=split(/\&/,$rep); + foreach my $item (@pairs) { + my ($key,$value)=split(/=/,$item,2); + my $what = &unescape($key); + $returnhash{$what}=&thaw_unescape($value); + } + } + return ($result,\%returnhash); +} + +sub get_server_loncaparev { + my ($dom,$lonhost,$ignore_cache,$caller) = @_; + if (defined($lonhost)) { + if (!defined(&hostname($lonhost))) { + undef($lonhost); + } + } + if (!defined($lonhost)) { + if (defined(&domain($dom,'primary'))) { + $lonhost=&domain($dom,'primary'); + if ($lonhost eq 'no_host') { + undef($lonhost); + } + } + } + if (defined($lonhost)) { + my $cachetime = 12*3600; + if (!$ignore_cache) { + my ($loncaparev,$cached)=&is_cached_new('serverloncaparev',$lonhost); + if (defined($cached)) { + return $loncaparev; + } + } + my ($answer,$loncaparev); + my @ids=¤t_machine_ids(); + if (grep(/^\Q$lonhost\E$/,@ids)) { + $answer = $perlvar{'lonVersion'}; + if ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) { + $loncaparev = $1; + } + } else { + $answer = &reply('serverloncaparev',$lonhost); + if (($answer eq 'unknown_cmd') || ($answer eq 'con_lost')) { + if ($caller eq 'loncron') { + my $hostname = &hostname($lonhost); + my $protocol = $protocol{$lonhost}; + $protocol = 'http' if ($protocol ne 'https'); + my $url = $protocol.'://'.$hostname.'/adm/about.html'; + my $request=new HTTP::Request('GET',$url); + my $response=&LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar,4,1); + unless ($response->is_error()) { + my $content = $response->content; + if ($content =~ /

VERSION\:\s*([\w.\-]+)<\/p>/) { + $loncaparev = $1; + } + } + } else { + $loncaparev = $loncaparevs{$lonhost}; + } + } elsif ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) { + $loncaparev = $1; + } + } + return &do_cache_new('serverloncaparev',$lonhost,$loncaparev,$cachetime); + } +} + +sub get_server_homeID { + my ($hostname,$ignore_cache,$caller) = @_; + unless ($ignore_cache) { + my ($serverhomeID,$cached)=&is_cached_new('serverhomeID',$hostname); + if (defined($cached)) { + return $serverhomeID; + } + } + my $cachetime = 12*3600; + my $serverhomeID; + if ($caller eq 'loncron') { + my @machine_ids = &machine_ids($hostname); + foreach my $id (@machine_ids) { + my $response = &reply('serverhomeID',$id); + unless (($response eq 'unknown_cmd') || ($response eq 'con_lost')) { + $serverhomeID = $response; + last; + } + } + if ($serverhomeID eq '') { + $serverhomeID = $machine_ids[-1]; + } + } else { + $serverhomeID = $serverhomeIDs{$hostname}; + } + return &do_cache_new('serverhomeID',$hostname,$serverhomeID,$cachetime); +} + +sub get_remote_globals { + my ($lonhost,$whathash,$ignore_cache) = @_; + my ($result,%returnhash,%whatneeded); + if (ref($whathash) eq 'HASH') { + foreach my $what (sort(keys(%{$whathash}))) { + my $hashid = $lonhost.'-'.$what; + my ($response,$cached); + unless ($ignore_cache) { + ($response,$cached)=&is_cached_new('lonnetglobal',$hashid); + } + if (defined($cached)) { + $returnhash{$what} = $response; + } else { + $whatneeded{$what} = 1; + } + } + if (keys(%whatneeded) == 0) { + $result = 'ok'; + } else { + my $requested = &freeze_escape(\%whatneeded); + my $rep=&reply('readlonnetglobal:'.$requested,$lonhost); + if (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') || + ($rep eq 'unknown_cmd')) { + $result = $rep; + } else { + $result = 'ok'; + my @pairs=split(/\&/,$rep); + foreach my $item (@pairs) { + my ($key,$value)=split(/=/,$item,2); + my $what = &unescape($key); + my $hashid = $lonhost.'-'.$what; + $returnhash{$what}=&thaw_unescape($value); + &do_cache_new('lonnetglobal',$hashid,$returnhash{$what},600); + } + } + } + } + return ($result,\%returnhash); +} + +sub remote_devalidate_cache { + my ($lonhost,$cachekeys) = @_; + my $items; + return unless (ref($cachekeys) eq 'ARRAY'); + my $cachestr = join('&',@{$cachekeys}); + my $response = &reply('devalidatecache:'.&escape($cachestr),$lonhost); + return $response; +} + # -------------------------------------------------- Non-critical communication sub subreply { my ($cmd,$server)=@_; - my $peerfile="$perlvar{'lonSockDir'}/$server"; - my $client=IO::Socket::UNIX->new(Peer =>"$peerfile", - Type => SOCK_STREAM, - Timeout => 10) - or return "con_lost"; - print $client "$cmd\n"; - my $answer=<$client>; - if (!$answer) { $answer="con_lost"; } - chomp($answer); + my $peerfile="$perlvar{'lonSockDir'}/".&hostname($server); + # + # With loncnew process trimming, there's a timing hole between lonc server + # process exit and the master server picking up the listen on the AF_UNIX + # socket. In that time interval, a lock file will exist: + + my $lockfile=$peerfile.".lock"; + while (-e $lockfile) { # Need to wait for the lockfile to disappear. + sleep(0.1); + } + # At this point, either a loncnew parent is listening or an old lonc + # or loncnew child is listening so we can connect or everything's dead. + # + # We'll give the connection a few tries before abandoning it. If + # connection is not possible, we'll con_lost back to the client. + # + my $client; + for (my $retries = 0; $retries < $max_connection_retries; $retries++) { + $client=IO::Socket::UNIX->new(Peer =>"$peerfile", + Type => SOCK_STREAM, + Timeout => 10); + if ($client) { + last; # Connected! + } else { + &create_connection(&hostname($server),$server); + } + sleep(0.1); # Try again later if failed connection. + } + my $answer; + if ($client) { + print $client "sethost:$server:$cmd\n"; + $answer=<$client>; + if (!$answer) { $answer="con_lost"; } + chomp($answer); + } else { + $answer = 'con_lost'; # Failed connection. + } return $answer; } sub reply { my ($cmd,$server)=@_; - unless (defined($hostname{$server})) { return 'no_such_host'; } + unless (defined(&hostname($server))) { return 'no_such_host'; } my $answer=subreply($cmd,$server); - if ($answer eq 'con_lost') { - #sleep 5; - #$answer=subreply($cmd,$server); - #if ($answer eq 'con_lost') { - # &logthis("Second attempt con_lost on $server"); - # my $peerfile="$perlvar{'lonSockDir'}/$server"; - # my $client=IO::Socket::UNIX->new(Peer =>"$peerfile", - # Type => SOCK_STREAM, - # Timeout => 10) - # or return "con_lost"; - # &logthis("Killing socket"); - # print $client "close_connection_exit\n"; - #sleep 5; - # $answer=subreply($cmd,$server); - #} - } if (($answer=~/^refused/) || ($answer=~/^rejected/)) { - &logthis("WARNING:". - " $cmd to $server returned $answer"); + my $logged = $cmd; + if ($cmd =~ /^encrypt:([^:]+):/) { + my $subcmd = $1; + if (($subcmd eq 'auth') || ($subcmd eq 'passwd') || + ($subcmd eq 'changeuserauth') || ($subcmd eq 'makeuser') || + ($subcmd eq 'putdom') || ($subcmd eq 'autoexportgrades')) { + (undef,undef,my @rest) = split(/:/,$cmd); + if (($subcmd eq 'auth') || ($subcmd eq 'putdom')) { + splice(@rest,2,1,'Hidden'); + } elsif ($subcmd eq 'passwd') { + splice(@rest,2,2,('Hidden','Hidden')); + } elsif (($subcmd eq 'changeuserauth') || ($subcmd eq 'makeuser') || + ($subcmd eq 'autoexportgrades')) { + splice(@rest,3,1,'Hidden'); + } + $logged = join(':',('encrypt:'.$subcmd,@rest)); + } + } + &logthis("WARNING:". + " $logged to $server returned $answer"); } return $answer; } @@ -129,29 +489,40 @@ sub reply { # ----------------------------------------------------------- Send USR1 to lonc sub reconlonc { - my $peerfile=shift; - &logthis("Trying to reconnect for $peerfile"); + my ($lonid) = @_; + if ($lonid) { + my $hostname = &hostname($lonid); + my $peerfile="$perlvar{'lonSockDir'}/$hostname"; + if ($hostname && -e $peerfile) { + &logthis("Trying to reconnect lonc for $lonid ($hostname)"); + my $client=IO::Socket::UNIX->new(Peer => $peerfile, + Type => SOCK_STREAM, + Timeout => 10); + if ($client) { + print $client ("reset_retries\n"); + my $answer=<$client>; + #reset just this one. + } + } + return; + } + + &logthis("Trying to reconnect lonc"); my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid"; - if (my $fh=Apache::File->new("$loncfile")) { + if (open(my $fh,"<",$loncfile)) { my $loncpid=<$fh>; chomp($loncpid); if (kill 0 => $loncpid) { &logthis("lonc at pid $loncpid responding, sending USR1"); kill USR1 => $loncpid; sleep 1; - if (-e "$peerfile") { return; } - &logthis("$peerfile still not there, give it another try"); - sleep 5; - if (-e "$peerfile") { return; } - &logthis( - "WARNING: $peerfile still not there, giving up"); } else { &logthis( - "WARNING:". + "WARNING:". " lonc at pid $loncpid not responding, giving up"); } } else { - &logthis('WARNING: lonc not running, giving up'); + &logthis('WARNING: lonc not running, giving up'); } } @@ -159,18 +530,15 @@ sub reconlonc { sub critical { my ($cmd,$server)=@_; - unless ($hostname{$server}) { - &logthis("WARNING:". + unless (&hostname($server)) { + &logthis("WARNING:". " Critical message to unknown server ($server)"); return 'no_such_host'; } my $answer=reply($cmd,$server); if ($answer eq 'con_lost') { - my $pingreply=reply('ping',$server); - &reconlonc("$perlvar{'lonSockDir'}/$server"); - my $pongreply=reply('pong',$server); - &logthis("Ping/Pong for $server: $pingreply/$pongreply"); - $answer=reply($cmd,$server); + &reconlonc($server); + my $answer=reply($cmd,$server); if ($answer eq 'con_lost') { my $now=time; my $middlename=$cmd; @@ -180,27 +548,29 @@ sub critical { "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server"; $dumpcount++; { - my $dfh; - if ($dfh=Apache::File->new(">$dfilename")) { - print $dfh "$cmd\n"; - } + my $dfh; + if (open($dfh,">",$dfilename)) { + print $dfh "$cmd\n"; + close($dfh); + } } - sleep 2; + sleep 1; my $wcmd=''; { - my $dfh; - if ($dfh=Apache::File->new("$dfilename")) { - $wcmd=<$dfh>; - } + my $dfh; + if (open($dfh,"<",$dfilename)) { + $wcmd=<$dfh>; + close($dfh); + } } chomp($wcmd); if ($wcmd eq $cmd) { - &logthis("WARNING: ". + &logthis("WARNING: ". "Connection buffer $dfilename: $cmd"); &logperm("D:$server:$cmd"); return 'con_delayed'; } else { - &logthis("CRITICAL:" + &logthis("CRITICAL:" ." Critical connection failed: $server $cmd"); &logperm("F:$server:$cmd"); return 'con_failed'; @@ -210,154 +580,375 @@ sub critical { return $answer; } -# -# -------------- Remove all key from the env that start witha lowercase letter -# (Which is always a lon-capa value) +# ------------------------------------------- check if return value is an error -sub cleanenv { -# unless (defined(&Apache::exists_config_define("MODPERL2"))) { return; } -# unless (&Apache::exists_config_define("MODPERL2")) { return; } - foreach my $key (keys(%ENV)) { - if ($key =~ /^[a-z]/) { - delete($ENV{$key}); - } +sub error { + my ($result) = @_; + if ($result =~ /^(con_lost|no_such_host|error: (\d+) (.*))/) { + if ($2 == 2) { return undef; } + return $1; } + return undef; } - -# ------------------------------------------- Transfer profile into environment -sub transfer_profile_to_env { +sub convert_and_load_session_env { my ($lonidsdir,$handle)=@_; my @profile; { - my $idf=Apache::File->new("$lonidsdir/$handle.id"); + my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id"); + if (!$opened) { + return 0; + } flock($idf,LOCK_SH); @profile=<$idf>; - $idf->close(); + close($idf); } - my $envi; - my %Remove; - for ($envi=0;$envi<=$#profile;$envi++) { - chomp($profile[$envi]); - my ($envname,$envvalue)=split(/=/,$profile[$envi]); - $ENV{$envname} = $envvalue; + my %temp_env; + foreach my $line (@profile) { + if ($line !~ m/=/) { + return 0; + } + chomp($line); + my ($envname,$envvalue)=split(/=/,$line,2); + $temp_env{&unescape($envname)} = &unescape($envvalue); + } + unlink("$lonidsdir/$handle.id"); + if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_WRCREAT(), + 0640)) { + %disk_env = %temp_env; + @env{keys(%temp_env)} = @disk_env{keys(%temp_env)}; + untie(%disk_env); + } + return 1; +} + +# ------------------------------------------- Transfer profile into environment +my $env_loaded; +sub transfer_profile_to_env { + my ($lonidsdir,$handle,$force_transfer) = @_; + if (!$force_transfer && $env_loaded) { return; } + + if (!defined($lonidsdir)) { + $lonidsdir = $perlvar{'lonIDsDir'}; + } + if (!defined($handle)) { + ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| ); + } + + my $convert; + { + my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id"); + if (!$opened) { + return; + } + flock($idf,LOCK_SH); + if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id", + &GDBM_READER(),0640)) { + @env{keys(%disk_env)} = @disk_env{keys(%disk_env)}; + untie(%disk_env); + } else { + $convert = 1; + } + } + if ($convert) { + if (!&convert_and_load_session_env($lonidsdir,$handle)) { + &logthis("Failed to load session, or convert session."); + } + } + + my %remove; + while ( my $envname = each(%env) ) { if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) { if ($time < time-300) { - $Remove{$key}++; + $remove{$key}++; } } } - $ENV{'user.environment'} = "$lonidsdir/$handle.id"; - foreach my $expired_key (keys(%Remove)) { + + $env{'user.environment'} = "$lonidsdir/$handle.id"; + $env_loaded=1; + foreach my $expired_key (keys(%remove)) { &delenv($expired_key); } } -# ---------------------------------------------------------- Append Environment +# ---------------------------------------------------- Check for valid session +sub check_for_valid_session { + my ($r,$name,$userhashref,$domref) = @_; + my %cookies=CGI::Cookie->parse($r->header_in('Cookie')); + my ($lonidsdir,$linkname,$pubname,$secure,$lonid); + if ($name eq 'lonDAV') { + $lonidsdir=$r->dir_config('lonDAVsessDir'); + } else { + $lonidsdir=$r->dir_config('lonIDsDir'); + if ($name eq '') { + $name = 'lonID'; + } + } + if ($name eq 'lonID') { + $secure = 'lonSID'; + $linkname = 'lonLinkID'; + $pubname = 'lonPubID'; + if (exists($cookies{$secure})) { + $lonid=$cookies{$secure}; + } elsif (exists($cookies{$name})) { + $lonid=$cookies{$name}; + } elsif ((exists($cookies{$linkname})) && ($ENV{'SERVER_PORT'} != 443)) { + $lonid=$cookies{$linkname}; + } elsif (exists($cookies{$pubname})) { + $lonid=$cookies{$pubname}; + } + } else { + $lonid=$cookies{$name}; + } + return undef if (!$lonid); -sub appenv { - my %newenv=@_; - foreach (keys %newenv) { - if (($newenv{$_}=~/^user\.role/) || ($newenv{$_}=~/^user\.priv/)) { - &logthis("WARNING: ". - "Attempt to modify environment ".$_." to ".$newenv{$_} - .''); - delete($newenv{$_}); - } else { - $ENV{$_}=$newenv{$_}; + my $handle=&LONCAPA::clean_handle($lonid->value); + if (-l "$lonidsdir/$handle.id") { + my $link = readlink("$lonidsdir/$handle.id"); + if ((-e $link) && ($link =~ m{^\Q$lonidsdir\E/(.+)\.id$})) { + $handle = $1; + } + } + if (!-e "$lonidsdir/$handle.id") { + if ((ref($domref)) && ($name eq 'lonID') && + ($handle =~ /^($match_username)\_\d+\_($match_domain)\_(.+)$/)) { + my ($possuname,$possudom,$possuhome) = ($1,$2,$3); + if ((&domain($possudom) ne '') && (&homeserver($possuname,$possudom) eq $possuhome)) { + $$domref = $possudom; + } } + return undef; } - my $lockfh; - unless ($lockfh=Apache::File->new("$ENV{'user.environment'}")) { - return 'error: '.$!; + my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id"); + return undef if (!$opened); + + flock($idf,LOCK_SH); + my %disk_env; + if (!tie(%disk_env,'GDBM_File',"$lonidsdir/$handle.id", + &GDBM_READER(),0640)) { + return undef; } - unless (flock($lockfh,LOCK_EX)) { - &logthis("WARNING: ". - 'Could not obtain exclusive lock in appenv: '.$!); - $lockfh->close(); - return 'error: '.$!; + + if (!defined($disk_env{'user.name'}) + || !defined($disk_env{'user.domain'})) { + untie(%disk_env); + return undef; } - my @oldenv; - { - my $fh; - unless ($fh=Apache::File->new("$ENV{'user.environment'}")) { - return 'error: '.$!; - } - @oldenv=<$fh>; - $fh->close(); + if (ref($userhashref) eq 'HASH') { + $userhashref->{'name'} = $disk_env{'user.name'}; + $userhashref->{'domain'} = $disk_env{'user.domain'}; + if ($disk_env{'request.role'}) { + $userhashref->{'role'} = $disk_env{'request.role'}; + } + $userhashref->{'lti'} = $disk_env{'request.lti.login'}; + if ($userhashref->{'lti'}) { + $userhashref->{'ltitarget'} = $disk_env{'request.lti.target'}; + $userhashref->{'ltiuri'} = $disk_env{'request.lti.uri'}; + } } - for (my $i=0; $i<=$#oldenv; $i++) { - chomp($oldenv[$i]); - if ($oldenv[$i] ne '') { - my ($name,$value)=split(/=/,$oldenv[$i]); - unless (defined($newenv{$name})) { - $newenv{$name}=$value; - } + untie(%disk_env); + + return $handle; +} + +sub timed_flock { + my ($file,$lock_type) = @_; + my $failed=0; + eval { + local $SIG{__DIE__}='DEFAULT'; + local $SIG{ALRM}=sub { + $failed=1; + die("failed lock"); + }; + alarm(13); + flock($file,$lock_type); + alarm(0); + }; + if ($failed) { + return undef; + } else { + return 1; + } +} + +sub get_sessionfile_vars { + my ($handle,$lonidsdir,$storearr) = @_; + my %returnhash; + unless (ref($storearr) eq 'ARRAY') { + return %returnhash; + } + if (-l "$lonidsdir/$handle.id") { + my $link = readlink("$lonidsdir/$handle.id"); + if ((-e $link) && ($link =~ m{^\Q$lonidsdir\E/(.+)\.id$})) { + $handle = $1; } } - { - my $fh; - unless ($fh=Apache::File->new(">$ENV{'user.environment'}")) { - return 'error'; - } - my $newname; - foreach $newname (keys %newenv) { - print $fh "$newname=$newenv{$newname}\n"; - } - $fh->close(); + if ((-e "$lonidsdir/$handle.id") && + ($handle =~ /^($match_username)\_\d+\_($match_domain)\_(.+)$/)) { + my ($possuname,$possudom,$possuhome) = ($1,$2,$3); + if ((&domain($possudom) ne '') && (&homeserver($possuname,$possudom) eq $possuhome)) { + if (open(my $idf,'+<',"$lonidsdir/$handle.id")) { + flock($idf,LOCK_SH); + if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id", + &GDBM_READER(),0640)) { + foreach my $item (@{$storearr}) { + $returnhash{$item} = $disk_env{$item}; + } + untie(%disk_env); + } + } + } } + return %returnhash; +} + +# ---------------------------------------------------------- Append Environment - $lockfh->close(); +sub appenv { + my ($newenv,$roles) = @_; + if (ref($newenv) eq 'HASH') { + foreach my $key (keys(%{$newenv})) { + my $refused = 0; + if (($key =~ /^user\.role/) || ($key =~ /^user\.priv/)) { + $refused = 1; + if (ref($roles) eq 'ARRAY') { + my ($type,$role) = ($key =~ m{^user\.(role|priv)\.(.+?)\./}); + if (grep(/^\Q$role\E$/,@{$roles})) { + $refused = 0; + } + } + } + if ($refused) { + &logthis("WARNING: ". + "Attempt to modify environment ".$key." to ".$newenv->{$key} + .''); + delete($newenv->{$key}); + } else { + $env{$key}=$newenv->{$key}; + } + } + my $lonids = $perlvar{'lonIDsDir'}; + if ($env{'user.environment'} =~ m{^\Q$lonids/\E$match_username\_\d+\_$match_domain\_[\w\-.]+\.id$}) { + my $opened = open(my $env_file,'+<',$env{'user.environment'}); + if ($opened + && &timed_flock($env_file,LOCK_EX) + && + tie(my %disk_env,'GDBM_File',$env{'user.environment'}, + (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) { + while (my ($key,$value) = each(%{$newenv})) { + $disk_env{$key} = $value; + } + untie(%disk_env); + } + } + } return 'ok'; } # ----------------------------------------------------- Delete from Environment sub delenv { - my $delthis=shift; - my %newenv=(); - if (($delthis=~/user\.role/) || ($delthis=~/user\.priv/)) { - &logthis("WARNING: ". - "Attempt to delete from environment ".$delthis); - return 'error'; - } - my @oldenv; - { - my $fh; - unless ($fh=Apache::File->new("$ENV{'user.environment'}")) { - return 'error'; - } - unless (flock($fh,LOCK_SH)) { - &logthis("WARNING: ". - 'Could not obtain shared lock in delenv: '.$!); - $fh->close(); - return 'error: '.$!; - } - @oldenv=<$fh>; - $fh->close(); + my ($delthis,$regexp,$roles) = @_; + if (($delthis=~/^user\.role/) || ($delthis=~/^user\.priv/)) { + my $refused = 1; + if (ref($roles) eq 'ARRAY') { + my ($type,$role) = ($delthis =~ /^user\.(role|priv)\.([^.]+)\./); + if (grep(/^\Q$role\E$/,@{$roles})) { + $refused = 0; + } + } + if ($refused) { + &logthis("WARNING: ". + "Attempt to delete from environment ".$delthis); + return 'error'; + } } - { - my $fh; - unless ($fh=Apache::File->new(">$ENV{'user.environment'}")) { - return 'error'; - } - unless (flock($fh,LOCK_EX)) { - &logthis("WARNING: ". - 'Could not obtain exclusive lock in delenv: '.$!); - $fh->close(); - return 'error: '.$!; - } - foreach (@oldenv) { - unless ($_=~/^$delthis/) { print $fh $_; } - } - $fh->close(); + my $opened = open(my $env_file,'+<',$env{'user.environment'}); + if ($opened + && &timed_flock($env_file,LOCK_EX) + && + tie(my %disk_env,'GDBM_File',$env{'user.environment'}, + (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) { + foreach my $key (keys(%disk_env)) { + if ($regexp) { + if ($key=~/^$delthis/) { + delete($env{$key}); + delete($disk_env{$key}); + } + } else { + if ($key=~/^\Q$delthis\E/) { + delete($env{$key}); + delete($disk_env{$key}); + } + } + } + untie(%disk_env); } return 'ok'; } +sub get_env_multiple { + my ($name) = @_; + my @values; + if (defined($env{$name})) { + # exists is it an array + if (ref($env{$name})) { + @values=@{ $env{$name} }; + } else { + $values[0]=$env{$name}; + } + } + return(@values); +} + +# ------------------------------------------------------------------- Locking + +sub set_lock { + my ($text)=@_; + $locknum++; + my $id=$$.'-'.$locknum; + &appenv({'session.locks' => $env{'session.locks'}.','.$id, + 'session.lock.'.$id => $text}); + return $id; +} + +sub get_locks { + my $num=0; + my %texts=(); + foreach my $lock (split(/\,/,$env{'session.locks'})) { + if ($lock=~/\w/) { + $num++; + $texts{$lock}=$env{'session.lock.'.$lock}; + } + } + return ($num,%texts); +} + +sub remove_lock { + my ($id)=@_; + my $newlocks=''; + foreach my $lock (split(/\,/,$env{'session.locks'})) { + if (($lock=~/\w/) && ($lock ne $id)) { + $newlocks.=','.$lock; + } + } + &appenv({'session.locks' => $newlocks}); + &delenv('session.lock.'.$id); +} + +sub remove_all_locks { + my $activelocks=$env{'session.locks'}; + foreach my $lock (split(/\,/,$env{'session.locks'})) { + if ($lock=~/\w/) { + &remove_lock($lock); + } + } +} + + # ------------------------------------------ Find out current server userload -# there is a copy in lond sub userload { my $numusers=0; { @@ -365,7 +956,9 @@ sub userload { my $filename; my $curtime=time; while ($filename=readdir(LONIDS)) { - if ($filename eq '.' || $filename eq '..') {next;} + next if ($filename eq '.' || $filename eq '..'); + next if ($filename =~ /publicuser_\d+\.id/); + next if ($filename =~ /^[a-f0-9]+_linked\.id$/); my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9]; if ($curtime-$mtime < 1800) { $numusers++; } } @@ -380,71 +973,315 @@ sub userload { return $userloadpercent; } -# ------------------------------------------ Fight off request when overloaded - -sub overloaderror { - my ($r,$checkserver)=@_; - unless ($checkserver) { $checkserver=$perlvar{'lonHostID'}; } - my $loadavg; - if ($checkserver eq $perlvar{'lonHostID'}) { - my $loadfile=Apache::File->new('/proc/loadavg'); - $loadavg=<$loadfile>; - $loadavg =~ s/\s.*//g; - $loadavg = 100*$loadavg/$perlvar{'lonLoadLim'}; - } else { - $loadavg=&reply('load',$checkserver); - } - my $overload=$loadavg-100; - if ($overload>0) { - $r->err_headers_out->{'Retry-After'}=$overload; - $r->log_error('Overload of '.$overload.' on '.$checkserver); - return 413; - } - return ''; -} - # ------------------------------ Find server with least workload from spare.tab sub spareserver { - my ($loadpercent,$userloadpercent) = @_; - my $tryserver; - my $spareserver=''; + my ($r,$loadpercent,$userloadpercent,$want_server_name,$udom) = @_; + my $spare_server; if ($userloadpercent !~ /\d/) { $userloadpercent=0; } - my $lowestserver=$loadpercent > $userloadpercent? - $loadpercent : $userloadpercent; - foreach $tryserver (keys %spareid) { - my $loadans=reply('load',$tryserver); - my $userloadans=reply('userload',$tryserver); - if ($loadans !~ /\d/ && $userloadans !~ /\d/) { - next; #didn't get a number from the server - } - my $answer; - if ($loadans =~ /\d/) { - if ($userloadans =~ /\d/) { - #both are numbers, pick the bigger one - $answer=$loadans > $userloadans? - $loadans : $userloadans; - } else { - $answer = $loadans; + my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent + : $userloadpercent; + my ($uint_dom,$remotesessions); + if (($udom ne '') && (&domain($udom) ne '')) { + my $uprimary_id = &Apache::lonnet::domain($udom,'primary'); + $uint_dom = &Apache::lonnet::internet_dom($uprimary_id); + my %udomdefaults = &Apache::lonnet::get_domain_defaults($udom); + $remotesessions = $udomdefaults{'remotesessions'}; + } + my $spareshash = &this_host_spares($udom); + if (ref($spareshash) eq 'HASH') { + if (ref($spareshash->{'primary'}) eq 'ARRAY') { + foreach my $try_server (@{ $spareshash->{'primary'} }) { + next unless (&spare_can_host($udom,$uint_dom,$remotesessions, + $try_server)); + ($spare_server, $lowest_load) = + &compare_server_load($try_server, $spare_server, $lowest_load); + } + } + + my $found_server = ($spare_server ne '' && $lowest_load < 100); + + if (!$found_server) { + if (ref($spareshash->{'default'}) eq 'ARRAY') { + foreach my $try_server (@{ $spareshash->{'default'} }) { + next unless (&spare_can_host($udom,$uint_dom, + $remotesessions,$try_server)); + ($spare_server, $lowest_load) = + &compare_server_load($try_server, $spare_server, $lowest_load); + } } + } + } + + if (!$want_server_name) { + if (defined($spare_server)) { + my $hostname = &hostname($spare_server); + if (defined($hostname)) { + my $protocol = 'http'; + if ($protocol{$spare_server} eq 'https') { + $protocol = $protocol{$spare_server}; + } + my $alias = &Apache::lonnet::use_proxy_alias($r,$spare_server); + $hostname = $alias if ($alias ne ''); + $spare_server = $protocol.'://'.$hostname; + } + } + } + return $spare_server; +} + +sub compare_server_load { + my ($try_server, $spare_server, $lowest_load, $required) = @_; + + if ($required) { + my ($reqdmajor,$reqdminor) = ($required =~ /^(\d+)\.(\d+)$/); + my $remoterev = &get_server_loncaparev(undef,$try_server); + my ($major,$minor) = ($remoterev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/); + if (($major eq '' && $minor eq '') || + (($reqdmajor > $major) || (($reqdmajor == $major) && ($reqdminor > $minor)))) { + return ($spare_server,$lowest_load); + } + } + + my $loadans = &reply('load', $try_server); + my $userloadans = &reply('userload',$try_server); + + if ($loadans !~ /\d/ && $userloadans !~ /\d/) { + return ($spare_server, $lowest_load); #didn't get a number from the server + } + + my $load; + if ($loadans =~ /\d/) { + if ($userloadans =~ /\d/) { + #both are numbers, pick the bigger one + $load = ($loadans > $userloadans) ? $loadans + : $userloadans; } else { - $answer = $userloadans; - } - if (($answer =~ /\d/) && ($answer<$lowestserver)) { - $spareserver="http://$hostname{$tryserver}"; - $lowestserver=$answer; + $load = $loadans; } + } else { + $load = $userloadans; + } + + if (($load =~ /\d/) && ($load < $lowest_load)) { + $spare_server = $try_server; + $lowest_load = $load; + } + return ($spare_server,$lowest_load); +} + +# --------------------------- ask offload servers if user already has a session +sub find_existing_session { + my ($udom,$uname) = @_; + my $spareshash = &this_host_spares($udom); + if (ref($spareshash) eq 'HASH') { + if (ref($spareshash->{'primary'}) eq 'ARRAY') { + foreach my $try_server (@{ $spareshash->{'primary'} }) { + return $try_server if (&has_user_session($try_server, $udom, $uname)); + } + } + if (ref($spareshash->{'default'}) eq 'ARRAY') { + foreach my $try_server (@{ $spareshash->{'default'} }) { + return $try_server if (&has_user_session($try_server, $udom, $uname)); + } + } + } + return; +} + +sub delusersession { + my ($lonid,$udom,$uname) = @_; + my $uprimary_id = &domain($udom,'primary'); + my $uintdom = &internet_dom($uprimary_id); + my $intdom = &internet_dom($lonid); + my $serverhomedom = &host_domain($lonid); + if (($uintdom ne '') && ($uintdom eq $intdom)) { + return &reply(join(':','delusersession', + map {&escape($_)} ($udom,$uname)),$lonid); + } + return; +} + +# check if user's browser sent load balancer cookie and server still has session +# and is not overloaded. +sub check_for_balancer_cookie { + my ($r,$update_mtime) = @_; + my ($otherserver,$cookie); + my %cookies=CGI::Cookie->parse($r->header_in('Cookie')); + if (exists($cookies{'balanceID'})) { + my $balid = $cookies{'balanceID'}; + $cookie=&LONCAPA::clean_handle($balid->value); + my $balancedir=$r->dir_config('lonBalanceDir'); + if ((-d $balancedir) && (-e "$balancedir/$cookie.id")) { + if ($cookie =~ /^($match_domain)_($match_username)_[a-f0-9]+$/) { + my ($possudom,$possuname) = ($1,$2); + my $has_session = 0; + if ((&domain($possudom) ne '') && + (&homeserver($possuname,$possudom) ne 'no_host')) { + my $try_server; + my $opened = open(my $idf,'+<',"$balancedir/$cookie.id"); + if ($opened) { + flock($idf,LOCK_SH); + while (my $line = <$idf>) { + chomp($line); + if (&hostname($line) ne '') { + $try_server = $line; + last; + } + } + close($idf); + if (($try_server) && + (&has_user_session($try_server,$possudom,$possuname))) { + my $lowest_load = 30000; + ($otherserver,$lowest_load) = + &compare_server_load($try_server,undef,$lowest_load); + if ($otherserver ne '' && $lowest_load < 100) { + $has_session = 1; + } else { + undef($otherserver); + } + } + } + } + if ($has_session) { + if ($update_mtime) { + my $atime = my $mtime = time; + utime($atime,$mtime,"$balancedir/$cookie.id"); + } + } else { + unlink("$balancedir/$cookie.id"); + } + } + } } - return $spareserver; + return ($otherserver,$cookie); +} + +sub updatebalcookie { + my ($cookie,$balancer,$lastentry)=@_; + if ($cookie =~ /^($match_domain)\_($match_username)\_[a-f0-9]{32}$/) { + my ($udom,$uname) = ($1,$2); + my $uprimary_id = &domain($udom,'primary'); + my $uintdom = &internet_dom($uprimary_id); + my $intdom = &internet_dom($balancer); + my $serverhomedom = &host_domain($balancer); + if (($uintdom ne '') && ($uintdom eq $intdom)) { + return &reply('updatebalcookie:'.&escape($cookie).':'.&escape($lastentry),$balancer); + } + } + return; +} + +sub delbalcookie { + my ($cookie,$balancer) =@_; + if ($cookie =~ /^($match_domain)\_($match_username)\_[a-f0-9]{32}$/) { + my ($udom,$uname) = ($1,$2); + my $uprimary_id = &domain($udom,'primary'); + my $uintdom = &internet_dom($uprimary_id); + my $intdom = &internet_dom($balancer); + my $serverhomedom = &host_domain($balancer); + if (($uintdom ne '') && ($uintdom eq $intdom)) { + return &reply('delbalcookie:'.&escape($cookie),$balancer); + } + } +} + +# -------------------------------- ask if server already has a session for user +sub has_user_session { + my ($lonid,$udom,$uname) = @_; + my $result = &reply(join(':','userhassession', + map {&escape($_)} ($udom,$uname)),$lonid); + return 1 if ($result eq 'ok'); + + return 0; +} + +# --------- determine least loaded server in a user's domain which allows login + +sub choose_server { + my ($udom,$checkloginvia,$required,$skiploadbal) = @_; + my %domconfhash = &Apache::loncommon::get_domainconf($udom); + my %servers = &get_servers($udom); + my $lowest_load = 30000; + my ($login_host,$hostname,$portal_path,$isredirect,$balancers); + if ($skiploadbal) { + ($balancers,my $cached)=&is_cached_new('loadbalancing',$udom); + unless (defined($cached)) { + my $cachetime = 60*60*24; + my %domconfig = + &Apache::lonnet::get_dom('configuration',['loadbalancing'],$udom); + if (ref($domconfig{'loadbalancing'}) eq 'HASH') { + $balancers = &do_cache_new('loadbalancing',$udom,$domconfig{'loadbalancing'}, + $cachetime); + } + } + } + foreach my $lonhost (keys(%servers)) { + if ($skiploadbal) { + if (ref($balancers) eq 'HASH') { + next if (exists($balancers->{$lonhost})); + } + } + my $loginvia; + if ($checkloginvia) { + $loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost}; + if ($loginvia) { + my ($server,$path) = split(/:/,$loginvia); + ($login_host, $lowest_load) = + &compare_server_load($server, $login_host, $lowest_load, $required); + if ($login_host eq $server) { + $portal_path = $path; + $isredirect = 1; + } + } else { + ($login_host, $lowest_load) = + &compare_server_load($lonhost, $login_host, $lowest_load, $required); + if ($login_host eq $lonhost) { + $portal_path = ''; + $isredirect = ''; + } + } + } else { + ($login_host, $lowest_load) = + &compare_server_load($lonhost, $login_host, $lowest_load, $required); + } + } + if ($login_host ne '') { + $hostname = &hostname($login_host); + } + return ($login_host,$hostname,$portal_path,$isredirect,$lowest_load); +} + +sub get_course_sessions { + my ($cnum,$cdom,$lastactivity) = @_; + my %servers = &internet_dom_servers($cdom); + my %returnhash; + foreach my $server (sort(keys(%servers))) { + my $rep = &reply("coursesessions:$cdom:$cnum:$lastactivity",$server); + my @pairs=split(/\&/,$rep); + unless (($rep eq 'unknown_cmd') || ($rep =~ /^error/)) { + foreach my $item (@pairs) { + my ($key,$value)=split(/=/,$item,2); + $key = &unescape($key); + next if ($key =~ /^error: 2 /); + if (exists($returnhash{$key})) { + next if ($value < $returnhash{$key}); + } + $returnhash{$key}=$value; + } + } + } + return %returnhash; } # --------------------------------------------- Try to change a user's password sub changepass { - my ($uname,$udom,$currentpass,$newpass,$server)=@_; + my ($uname,$udom,$currentpass,$newpass,$server,$context)=@_; $currentpass = &escape($currentpass); $newpass = &escape($newpass); - my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass", + my $lonhost = $perlvar{'lonHostID'}; + my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass:$context:$lonhost", $server); if (! $answer) { &logthis("No reply on password change request to $server ". @@ -469,6 +1306,12 @@ sub changepass { } elsif ($answer =~ "^refused") { &logthis("$server refused to change $uname in $udom password because ". "it was sent an unencrypted request to change the password."); + } elsif ($answer =~ "invalid_client") { + &logthis("$server refused to change $uname in $udom password because ". + "it was a reset by e-mail originating from an invalid server."); + } elsif ($answer =~ "^prioruse") { + &logthis("$server refused to change $uname in $udom password because ". + "the password had been used before"); } return $answer; } @@ -477,129 +1320,668 @@ sub changepass { sub queryauthenticate { my ($uname,$udom)=@_; - if (($perlvar{'lonRole'} eq 'library') && - ($udom eq $perlvar{'lonDefDomain'})) { - my $answer=reply("encrypt:currentauth:$udom:$uname", - $perlvar{'lonHostID'}); - unless ($answer eq 'unknown_user' or $answer eq 'refused') { - if (length($answer)) { - return $answer; - } - else { - &logthis("User $uname at $udom lacks an authentication mechanism"); - return 'no_host'; - } - } + my $uhome=&homeserver($uname,$udom); + if (!$uhome) { + &logthis("User $uname at $udom is unknown when looking for authentication mechanism"); + return 'no_host'; + } + my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome); + if ($answer =~ /^(unknown_user|refused|con_lost)/) { + &logthis("User $uname at $udom threw error $answer when checking authentication mechanism"); } + return $answer; +} - my $tryserver; - foreach $tryserver (keys %libserv) { - if ($hostdom{$tryserver} eq $udom) { - my $answer=reply("encrypt:currentauth:$udom:$uname",$tryserver); - unless ($answer eq 'unknown_user' or $answer eq 'refused') { - if (length($answer)) { - return $answer; - } - else { - &logthis("User $uname at $udom lacks an authentication mechanism"); - return 'no_host'; - } - } - } +# --------- Try to authenticate user from domain's lib servers (first this one) + +sub authenticate { + my ($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)=@_; + $upass=&escape($upass); + $uname= &LONCAPA::clean_username($uname); + my $uhome=&homeserver($uname,$udom,1); + my $newhome; + if ((!$uhome) || ($uhome eq 'no_host')) { +# Maybe the machine was offline and only re-appeared again recently? + &reconlonc(); +# One more + $uhome=&homeserver($uname,$udom,1); + if (($uhome eq 'no_host') && $checkdefauth) { + if (defined(&domain($udom,'primary'))) { + $newhome=&domain($udom,'primary'); + } + if ($newhome ne '') { + $uhome = $newhome; + } + } + if ((!$uhome) || ($uhome eq 'no_host')) { + &logthis("User $uname at $udom is unknown in authenticate"); + return 'no_host'; + } + } + my $answer=reply("encrypt:auth:$udom:$uname:$upass:$checkdefauth:$clientcancheckhost",$uhome); + if ($answer eq 'authorized') { + if ($newhome) { + &logthis("User $uname at $udom authorized by $uhome, but needs account"); + return 'no_account_on_host'; + } else { + &logthis("User $uname at $udom authorized by $uhome"); + return $uhome; + } + } + if ($answer eq 'non_authorized') { + &logthis("User $uname at $udom rejected by $uhome"); + return 'no_host'; } - &logthis("User $uname at $udom lacks an authentication mechanism"); + &logthis("User $uname at $udom threw error $answer when checking authentication mechanism"); return 'no_host'; } -# --------- Try to authenticate user from domain's lib servers (first this one) +sub can_host_session { + my ($udom,$lonhost,$remoterev,$remotesessions,$hostedsessions) = @_; + my $canhost = 1; + my $host_idn = &Apache::lonnet::internet_dom($lonhost); + if (ref($remotesessions) eq 'HASH') { + if (ref($remotesessions->{'excludedomain'}) eq 'ARRAY') { + if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'excludedomain'}})) { + $canhost = 0; + } else { + $canhost = 1; + } + } + if (ref($remotesessions->{'includedomain'}) eq 'ARRAY') { + if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'includedomain'}})) { + $canhost = 1; + } else { + $canhost = 0; + } + } + if ($canhost) { + if ($remotesessions->{'version'} ne '') { + my ($reqmajor,$reqminor) = ($remotesessions->{'version'} =~ /^(\d+)\.(\d+)$/); + if ($reqmajor ne '' && $reqminor ne '') { + if ($remoterev =~ /^\'?(\d+)\.(\d+)/) { + my $major = $1; + my $minor = $2; + if (($major < $reqmajor ) || + (($major == $reqmajor) && ($minor < $reqminor))) { + $canhost = 0; + } + } else { + $canhost = 0; + } + } + } + } + } + if ($canhost) { + if (ref($hostedsessions) eq 'HASH') { + my $uprimary_id = &Apache::lonnet::domain($udom,'primary'); + my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id); + if (ref($hostedsessions->{'excludedomain'}) eq 'ARRAY') { + if (($uint_dom ne '') && + (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'excludedomain'}}))) { + $canhost = 0; + } else { + $canhost = 1; + } + } + if (ref($hostedsessions->{'includedomain'}) eq 'ARRAY') { + if (($uint_dom ne '') && + (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'includedomain'}}))) { + $canhost = 1; + } else { + $canhost = 0; + } + } + } + } + return $canhost; +} -sub authenticate { - my ($uname,$upass,$udom)=@_; - $upass=escape($upass); - $uname=~s/\W//g; - if (($perlvar{'lonRole'} eq 'library') && - ($udom eq $perlvar{'lonDefDomain'})) { - my $answer=reply("encrypt:auth:$udom:$uname:$upass",$perlvar{'lonHostID'}); - if ($answer =~ /authorized/) { - if ($answer eq 'authorized') { - &logthis("User $uname at $udom authorized by local server"); - return $perlvar{'lonHostID'}; - } - if ($answer eq 'non_authorized') { - &logthis("User $uname at $udom rejected by local server"); - return 'no_host'; - } - } +sub spare_can_host { + my ($udom,$uint_dom,$remotesessions,$try_server)=@_; + my $canhost=1; + my $try_server_hostname = &hostname($try_server); + my $serverhomeID = &get_server_homeID($try_server_hostname); + my $serverhomedom = &host_domain($serverhomeID); + my %defdomdefaults = &get_domain_defaults($serverhomedom); + if (ref($defdomdefaults{'offloadnow'}) eq 'HASH') { + if ($defdomdefaults{'offloadnow'}{$try_server}) { + $canhost = 0; + } + } + if ($canhost) { + if (ref($defdomdefaults{'offloadoth'}) eq 'HASH') { + if ($defdomdefaults{'offloadoth'}{$try_server}) { + unless (&shared_institution($udom,$try_server)) { + $canhost = 0; + } + } + } + } + if (($canhost) && ($uint_dom)) { + my @intdoms; + my $internet_names = &get_internet_names($try_server); + if (ref($internet_names) eq 'ARRAY') { + @intdoms = @{$internet_names}; + } + unless (grep(/^\Q$uint_dom\E$/,@intdoms)) { + my $remoterev = &get_server_loncaparev(undef,$try_server); + $canhost = &can_host_session($udom,$try_server,$remoterev, + $remotesessions, + $defdomdefaults{'hostedsessions'}); + } } + return $canhost; +} - my $tryserver; - foreach $tryserver (keys %libserv) { - if ($hostdom{$tryserver} eq $udom) { - my $answer=reply("encrypt:auth:$udom:$uname:$upass",$tryserver); - if ($answer =~ /authorized/) { - if ($answer eq 'authorized') { - &logthis("User $uname at $udom authorized by $tryserver"); - return $tryserver; - } - if ($answer eq 'non_authorized') { - &logthis("User $uname at $udom rejected by $tryserver"); - return 'no_host'; - } - } - } +sub this_host_spares { + my ($dom) = @_; + my ($dom_in_use,$lonhost_in_use,$result); + my @hosts = ¤t_machine_ids(); + foreach my $lonhost (@hosts) { + if (&host_domain($lonhost) eq $dom) { + $dom_in_use = $dom; + $lonhost_in_use = $lonhost; + last; + } } - &logthis("User $uname at $udom could not be authenticated"); - return 'no_host'; + if ($dom_in_use ne '') { + $result = &spares_for_offload($dom_in_use,$lonhost_in_use); + } + if (ref($result) ne 'HASH') { + $lonhost_in_use = $perlvar{'lonHostID'}; + $dom_in_use = &host_domain($lonhost_in_use); + $result = &spares_for_offload($dom_in_use,$lonhost_in_use); + if (ref($result) ne 'HASH') { + $result = \%spareid; + } + } + return $result; +} + +sub spares_for_offload { + my ($dom_in_use,$lonhost_in_use) = @_; + my ($result,$cached)=&is_cached_new('spares',$dom_in_use); + if (defined($cached)) { + return $result; + } else { + my $cachetime = 60*60*24; + my %domconfig = + &Apache::lonnet::get_dom('configuration',['usersessions'],$dom_in_use); + if (ref($domconfig{'usersessions'}) eq 'HASH') { + if (ref($domconfig{'usersessions'}{'spares'}) eq 'HASH') { + if (ref($domconfig{'usersessions'}{'spares'}{$lonhost_in_use}) eq 'HASH') { + return &do_cache_new('spares',$dom_in_use,$domconfig{'usersessions'}{'spares'}{$lonhost_in_use},$cachetime); + } + } + } + } + return; +} + +sub get_lonbalancer_config { + my ($servers) = @_; + my ($currbalancer,$currtargets); + if (ref($servers) eq 'HASH') { + foreach my $server (keys(%{$servers})) { + my %what = ( + spareid => 1, + perlvar => 1, + ); + my ($result,$returnhash) = &get_remote_globals($server,\%what); + if ($result eq 'ok') { + if (ref($returnhash) eq 'HASH') { + if (ref($returnhash->{'perlvar'}) eq 'HASH') { + if ($returnhash->{'perlvar'}->{'lonBalancer'} eq 'yes') { + $currbalancer = $server; + $currtargets = {}; + if (ref($returnhash->{'spareid'}) eq 'HASH') { + if (ref($returnhash->{'spareid'}->{'primary'}) eq 'ARRAY') { + $currtargets->{'primary'} = $returnhash->{'spareid'}->{'primary'}; + } + if (ref($returnhash->{'spareid'}->{'default'}) eq 'ARRAY') { + $currtargets->{'default'} = $returnhash->{'spareid'}->{'default'}; + } + } + last; + } + } + } + } + } + } + return ($currbalancer,$currtargets); +} + +sub check_loadbalancing { + my ($uname,$udom,$caller) = @_; + my ($is_balancer,$currtargets,$currrules,$dom_in_use,$homeintdom, + $rule_in_effect,$offloadto,$otherserver,$setcookie,$dom_balancers); + my $lonhost = $perlvar{'lonHostID'}; + my @hosts = ¤t_machine_ids(); + my $uprimary_id = &Apache::lonnet::domain($udom,'primary'); + my $uintdom = &Apache::lonnet::internet_dom($uprimary_id); + my $intdom = &Apache::lonnet::internet_dom($lonhost); + my $serverhomedom = &host_domain($lonhost); + my $domneedscache; + my $cachetime = 60*60*24; + + if (($uintdom ne '') && ($uintdom eq $intdom)) { + $dom_in_use = $udom; + $homeintdom = 1; + } else { + $dom_in_use = $serverhomedom; + } + my ($result,$cached)=&is_cached_new('loadbalancing',$dom_in_use); + unless (defined($cached)) { + my %domconfig = + &Apache::lonnet::get_dom('configuration',['loadbalancing'],$dom_in_use); + if (ref($domconfig{'loadbalancing'}) eq 'HASH') { + $result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime); + } else { + $domneedscache = $dom_in_use; + } + } + if (ref($result) eq 'HASH') { + ($is_balancer,$currtargets,$currrules,$setcookie,$dom_balancers) = + &check_balancer_result($result,@hosts); + if ($is_balancer) { + if (ref($currrules) eq 'HASH') { + if ($homeintdom) { + if ($uname ne '') { + if (($currrules->{'_LC_adv'} ne '') || ($currrules->{'_LC_author'} ne '')) { + my ($is_adv,$is_author) = &is_advanced_user($udom,$uname); + if (($currrules->{'_LC_author'} ne '') && ($is_author)) { + $rule_in_effect = $currrules->{'_LC_author'}; + } elsif (($currrules->{'_LC_adv'} ne '') && ($is_adv)) { + $rule_in_effect = $currrules->{'_LC_adv'} + } + } + if ($rule_in_effect eq '') { + my %userenv = &userenvironment($udom,$uname,'inststatus'); + if ($userenv{'inststatus'} ne '') { + my @statuses = map { &unescape($_); } split(/:/,$userenv{'inststatus'}); + my ($othertitle,$usertypes,$types) = + &Apache::loncommon::sorted_inst_types($udom); + if (ref($types) eq 'ARRAY') { + foreach my $type (@{$types}) { + if (grep(/^\Q$type\E$/,@statuses)) { + if (exists($currrules->{$type})) { + $rule_in_effect = $currrules->{$type}; + } + } + } + } + } else { + if (exists($currrules->{'default'})) { + $rule_in_effect = $currrules->{'default'}; + } + } + } + } else { + if (exists($currrules->{'default'})) { + $rule_in_effect = $currrules->{'default'}; + } + } + } else { + if ($currrules->{'_LC_external'} ne '') { + $rule_in_effect = $currrules->{'_LC_external'}; + } + } + $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets, + $uname,$udom); + } + } + } elsif (($homeintdom) && ($udom ne $serverhomedom)) { + ($result,$cached)=&is_cached_new('loadbalancing',$serverhomedom); + unless (defined($cached)) { + my %domconfig = + &Apache::lonnet::get_dom('configuration',['loadbalancing'],$serverhomedom); + if (ref($domconfig{'loadbalancing'}) eq 'HASH') { + $result = &do_cache_new('loadbalancing',$serverhomedom,$domconfig{'loadbalancing'},$cachetime); + } else { + $domneedscache = $serverhomedom; + } + } + if (ref($result) eq 'HASH') { + ($is_balancer,$currtargets,$currrules,$setcookie,$dom_balancers) = + &check_balancer_result($result,@hosts); + if ($is_balancer) { + if (ref($currrules) eq 'HASH') { + if ($currrules->{'_LC_internetdom'} ne '') { + $rule_in_effect = $currrules->{'_LC_internetdom'}; + } + } + $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets, + $uname,$udom); + } + } else { + if ($perlvar{'lonBalancer'} eq 'yes') { + $is_balancer = 1; + $offloadto = &this_host_spares($dom_in_use); + } + unless (defined($cached)) { + $domneedscache = $serverhomedom; + } + } + } else { + if ($perlvar{'lonBalancer'} eq 'yes') { + $is_balancer = 1; + $offloadto = &this_host_spares($dom_in_use); + } + unless (defined($cached)) { + $domneedscache = $serverhomedom; + } + } + if ($domneedscache) { + &do_cache_new('loadbalancing',$domneedscache,$is_balancer,$cachetime); + } + if (($is_balancer) && ($caller ne 'switchserver')) { + my $lowest_load = 30000; + if (ref($offloadto) eq 'HASH') { + if (ref($offloadto->{'primary'}) eq 'ARRAY') { + foreach my $try_server (@{$offloadto->{'primary'}}) { + ($otherserver,$lowest_load) = + &compare_server_load($try_server,$otherserver,$lowest_load); + } + } + my $found_server = ($otherserver ne '' && $lowest_load < 100); + + if (!$found_server) { + if (ref($offloadto->{'default'}) eq 'ARRAY') { + foreach my $try_server (@{$offloadto->{'default'}}) { + ($otherserver,$lowest_load) = + &compare_server_load($try_server,$otherserver,$lowest_load); + } + } + } + } elsif (ref($offloadto) eq 'ARRAY') { + if (@{$offloadto} == 1) { + $otherserver = $offloadto->[0]; + } elsif (@{$offloadto} > 1) { + foreach my $try_server (@{$offloadto}) { + ($otherserver,$lowest_load) = + &compare_server_load($try_server,$otherserver,$lowest_load); + } + } + } + unless ($caller eq 'login') { + if (($otherserver ne '') && (grep(/^\Q$otherserver\E$/,@hosts))) { + $is_balancer = 0; + if ($uname ne '' && $udom ne '') { + if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) { + &appenv({'user.loadbalexempt' => $lonhost, + 'user.loadbalcheck.time' => time}); + } + } + } + } + } + if (($is_balancer) && (!$homeintdom)) { + undef($setcookie); + } + return ($is_balancer,$otherserver,$setcookie,$offloadto,$dom_balancers); +} + +sub check_balancer_result { + my ($result,@hosts) = @_; + my ($is_balancer,$currtargets,$currrules,$setcookie,$dom_balancers); + if (ref($result) eq 'HASH') { + if ($result->{'lonhost'} ne '') { + my $currbalancer = $result->{'lonhost'}; + if (grep(/^\Q$currbalancer\E$/,@hosts)) { + $is_balancer = 1; + $currtargets = $result->{'targets'}; + $currrules = $result->{'rules'}; + } + $dom_balancers = $currbalancer; + } else { + if (keys(%{$result})) { + foreach my $key (keys(%{$result})) { + if (($key ne '') && (grep(/^\Q$key\E$/,@hosts)) && + (ref($result->{$key}) eq 'HASH')) { + $is_balancer = 1; + $currrules = $result->{$key}{'rules'}; + $currtargets = $result->{$key}{'targets'}; + $setcookie = $result->{$key}{'cookie'}; + last; + } + } + $dom_balancers = join(',',sort(keys(%{$result}))); + } + } + } + return ($is_balancer,$currtargets,$currrules,$setcookie,$dom_balancers); +} + +sub get_loadbalancer_targets { + my ($rule_in_effect,$currtargets,$uname,$udom) = @_; + my $offloadto; + if ($rule_in_effect eq 'none') { + return [$perlvar{'lonHostID'}]; + } elsif ($rule_in_effect eq '') { + $offloadto = $currtargets; + } else { + if ($rule_in_effect eq 'homeserver') { + my $homeserver = &homeserver($uname,$udom); + if ($homeserver ne 'no_host') { + $offloadto = [$homeserver]; + } + } elsif ($rule_in_effect eq 'externalbalancer') { + my %domconfig = + &Apache::lonnet::get_dom('configuration',['loadbalancing'],$udom); + if (ref($domconfig{'loadbalancing'}) eq 'HASH') { + if ($domconfig{'loadbalancing'}{'lonhost'} ne '') { + if (&hostname($domconfig{'loadbalancing'}{'lonhost'}) ne '') { + $offloadto = [$domconfig{'loadbalancing'}{'lonhost'}]; + } + } + } else { + my %servers = &internet_dom_servers($udom); + my ($remotebalancer,$remotetargets) = &get_lonbalancer_config(\%servers); + if (&hostname($remotebalancer) ne '') { + $offloadto = [$remotebalancer]; + } + } + } elsif (&hostname($rule_in_effect) ne '') { + $offloadto = [$rule_in_effect]; + } + } + return $offloadto; +} + +sub internet_dom_servers { + my ($dom) = @_; + my (%uniqservers,%servers); + my $primaryserver = &hostname(&domain($dom,'primary')); + my @machinedoms = &machine_domains($primaryserver); + foreach my $mdom (@machinedoms) { + my %currservers = %servers; + my %server = &get_servers($mdom); + %servers = (%currservers,%server); + } + my %by_hostname; + foreach my $id (keys(%servers)) { + push(@{$by_hostname{$servers{$id}}},$id); + } + foreach my $hostname (sort(keys(%by_hostname))) { + if (@{$by_hostname{$hostname}} > 1) { + my $match = 0; + foreach my $id (@{$by_hostname{$hostname}}) { + if (&host_domain($id) eq $dom) { + $uniqservers{$id} = $hostname; + $match = 1; + } + } + unless ($match) { + $uniqservers{$by_hostname{$hostname}[0]} = $hostname; + } + } else { + $uniqservers{$by_hostname{$hostname}[0]} = $hostname; + } + } + return %uniqservers; +} + +sub trusted_domains { + my ($cmdtype,$calldom) = @_; + my ($trusted,$untrusted); + if (&domain($calldom) eq '') { + return ($trusted,$untrusted); + } + unless ($cmdtype =~ /^(content|shared|enroll|coaurem|othcoau|domroles|catalog|reqcrs|msg)$/) { + return ($trusted,$untrusted); + } + my $callprimary = &domain($calldom,'primary'); + my $intcalldom = &Apache::lonnet::internet_dom($callprimary); + if ($intcalldom eq '') { + return ($trusted,$untrusted); + } + + my ($trustconfig,$cached)=&Apache::lonnet::is_cached_new('trust',$calldom); + unless (defined($cached)) { + my %domconfig = &Apache::lonnet::get_dom('configuration',['trust'],$calldom); + &Apache::lonnet::do_cache_new('trust',$calldom,$domconfig{'trust'},3600); + $trustconfig = $domconfig{'trust'}; + } + if (ref($trustconfig)) { + my (%possexc,%possinc,@allexc,@allinc); + if (ref($trustconfig->{$cmdtype}) eq 'HASH') { + if (ref($trustconfig->{$cmdtype}->{'exc'}) eq 'ARRAY') { + map { $possexc{$_} = 1; } @{$trustconfig->{$cmdtype}->{'exc'}}; + } + if (ref($trustconfig->{$cmdtype}->{'inc'}) eq 'ARRAY') { + $possinc{$intcalldom} = 1; + map { $possinc{$_} = 1; } @{$trustconfig->{$cmdtype}->{'inc'}}; + } + } + if (keys(%possexc)) { + if (keys(%possinc)) { + foreach my $key (sort(keys(%possexc))) { + next if ($key eq $intcalldom); + unless ($possinc{$key}) { + push(@allexc,$key); + } + } + } else { + @allexc = sort(keys(%possexc)); + } + } + if (keys(%possinc)) { + $possinc{$intcalldom} = 1; + @allinc = sort(keys(%possinc)); + } + if ((@allexc > 0) || (@allinc > 0)) { + my %doms_by_intdom; + my %allintdoms = &all_host_intdom(); + my %alldoms = &all_host_domain(); + foreach my $key (%allintdoms) { + if (ref($doms_by_intdom{$allintdoms{$key}}) eq 'ARRAY') { + unless (grep(/^\Q$alldoms{$key}\E$/,@{$doms_by_intdom{$allintdoms{$key}}})) { + push(@{$doms_by_intdom{$allintdoms{$key}}},$alldoms{$key}); + } + } else { + $doms_by_intdom{$allintdoms{$key}} = [$alldoms{$key}]; + } + } + foreach my $exc (@allexc) { + if (ref($doms_by_intdom{$exc}) eq 'ARRAY') { + push(@{$untrusted},@{$doms_by_intdom{$exc}}); + } + } + foreach my $inc (@allinc) { + if (ref($doms_by_intdom{$inc}) eq 'ARRAY') { + push(@{$trusted},@{$doms_by_intdom{$inc}}); + } + } + } + } + return ($trusted,$untrusted); +} + +sub will_trust { + my ($cmdtype,$domain,$possdom) = @_; + return 1 if ($domain eq $possdom); + my ($trustedref,$untrustedref) = &trusted_domains($cmdtype,$possdom); + my $willtrust; + if ((ref($trustedref) eq 'ARRAY') && (@{$trustedref} > 0)) { + if (grep(/^\Q$domain\E$/,@{$trustedref})) { + $willtrust = 1; + } + } elsif ((ref($untrustedref) eq 'ARRAY') && (@{$untrustedref} > 0)) { + unless (grep(/^\Q$domain\E$/,@{$untrustedref})) { + $willtrust = 1; + } + } else { + $willtrust = 1; + } + return $willtrust; } # ---------------------- Find the homebase for a user from domain's lib servers +my %homecache; sub homeserver { my ($uname,$udom,$ignoreBadCache)=@_; my $index="$uname:$udom"; - my ($result,$cached)=&is_cached(\%homecache,$index,'home',86400); - if (defined($cached)) { return $result; } - my $tryserver; - foreach $tryserver (keys %libserv) { + if (exists($homecache{$index})) { return $homecache{$index}; } + + my %servers = &get_servers($udom,'library'); + foreach my $tryserver (keys(%servers)) { next if ($ignoreBadCache ne 'true' && exists($badServerCache{$tryserver})); - if ($hostdom{$tryserver} eq $udom) { - my $answer=reply("home:$udom:$uname",$tryserver); - if ($answer eq 'found') { - return &do_cache(\%homecache,$index,$tryserver,'home'); - } elsif ($answer eq 'no_host') { - $badServerCache{$tryserver}=1; - } - } + + my $answer=reply("home:$udom:$uname",$tryserver); + if ($answer eq 'found') { + delete($badServerCache{$tryserver}); + return $homecache{$index}=$tryserver; + } elsif ($answer eq 'no_host') { + $badServerCache{$tryserver}=1; + } } return 'no_host'; } -# ------------------------------------- Find the usernames behind a list of IDs +# ----- Find the usernames behind a list of student/employee IDs or clicker IDs sub idget { - my ($udom,@ids)=@_; + my ($udom,$idsref,$namespace)=@_; my %returnhash=(); + my @ids=(); + if (ref($idsref) eq 'ARRAY') { + @ids = @{$idsref}; + } else { + return %returnhash; + } + if ($namespace eq '') { + $namespace = 'ids'; + } - my $tryserver; - foreach $tryserver (keys %libserv) { - if ($hostdom{$tryserver} eq $udom) { - my $idlist=join('&',@ids); - $idlist=~tr/A-Z/a-z/; - my $reply=&reply("idget:$udom:".$idlist,$tryserver); - my @answer=(); - if (($reply ne 'con_lost') && ($reply!~/^error\:/)) { - @answer=split(/\&/,$reply); - } ; - my $i; - for ($i=0;$i<=$#ids;$i++) { - if ($answer[$i]) { - $returnhash{$ids[$i]}=$answer[$i]; - } - } - } - } + my %servers = &get_servers($udom,'library'); + foreach my $tryserver (keys(%servers)) { + my $idlist=join('&', map { &escape($_); } @ids); + if ($namespace eq 'ids') { + $idlist=~tr/A-Z/a-z/; + } + my $reply; + if ($namespace eq 'ids') { + $reply=&reply("idget:$udom:".$idlist,$tryserver); + } else { + $reply=&reply("getdom:$udom:$namespace:$idlist",$tryserver); + } + my @answer=(); + if (($reply ne 'con_lost') && ($reply!~/^error\:/)) { + @answer=split(/\&/,$reply); + } ; + my $i; + for ($i=0;$i<=$#ids;$i++) { + if ($answer[$i]) { + $returnhash{$ids[$i]}=&unescape($answer[$i]); + } + } + } return %returnhash; } @@ -608,34 +1990,907 @@ sub idget { sub idrget { my ($udom,@unames)=@_; my %returnhash=(); - foreach (@unames) { - $returnhash{$_}=(&userenvironment($udom,$_,'id'))[1]; + foreach my $uname (@unames) { + $returnhash{$uname}=(&userenvironment($udom,$uname,'id'))[1]; } return %returnhash; } -# ------------------------------- Store away a list of names and associated IDs +# Store away a list of names and associated student/employee IDs or clicker IDs sub idput { - my ($udom,%ids)=@_; + my ($udom,$idsref,$uhom,$namespace)=@_; my %servers=(); - foreach (keys %ids) { - my $uhom=&homeserver($_,$udom); + my %ids=(); + my %byid = (); + if (ref($idsref) eq 'HASH') { + %ids=%{$idsref}; + } + if ($namespace eq '') { + $namespace = 'ids'; + } + foreach my $uname (keys(%ids)) { + &cput('environment',{'id'=>$ids{$uname}},$udom,$uname); + if ($uhom eq '') { + $uhom=&homeserver($uname,$udom); + } if ($uhom ne 'no_host') { - my $id=&escape($ids{$_}); - $id=~tr/A-Z/a-z/; - my $unam=&escape($_); - if ($servers{$uhom}) { - $servers{$uhom}.='&'.$id.'='.$unam; + my $esc_unam=&escape($uname); + if ($namespace eq 'ids') { + my $id=&escape($ids{$uname}); + $id=~tr/A-Z/a-z/; + my $esc_unam=&escape($uname); + $servers{$uhom}.=$id.'='.$esc_unam.'&'; + } else { + my @currids = split(/,/,$ids{$uname}); + foreach my $id (@currids) { + $byid{$uhom}{$id} .= $uname.','; + } + } + } + } + if ($namespace eq 'clickers') { + foreach my $server (keys(%byid)) { + if (ref($byid{$server}) eq 'HASH') { + foreach my $id (keys(%{$byid{$server}})) { + $byid{$server} =~ s/,$//; + $servers{$uhom}.=&escape($id).'='.&escape($byid{$server}).'&'; + } + } + } + } + foreach my $server (keys(%servers)) { + $servers{$server} =~ s/\&$//; + if ($namespace eq 'ids') { + &critical('idput:'.$udom.':'.$servers{$server},$server); + } else { + &critical('updateclickers:'.$udom.':add:'.$servers{$server},$server); + } + } +} + +# ------------- Delete unwanted student/employee IDs or clicker IDs from domain + +sub iddel { + my ($udom,$idshashref,$uhome,$namespace)=@_; + my %result=(); + my %ids=(); + my %byid = (); + if (ref($idshashref) eq 'HASH') { + %ids=%{$idshashref}; + } else { + return %result; + } + if ($namespace eq '') { + $namespace = 'ids'; + } + my %servers=(); + while (my ($id,$unamestr) = each(%ids)) { + if ($namespace eq 'ids') { + my $uhom = $uhome; + if ($uhom eq '') { + $uhom=&homeserver($unamestr,$udom); + } + if ($uhom ne 'no_host') { + $servers{$uhom}.='&'.&escape($id); + } + } else { + my @curritems = split(/,/,$ids{$id}); + foreach my $uname (@curritems) { + my $uhom = $uhome; + if ($uhom eq '') { + $uhom=&homeserver($uname,$udom); + } + if ($uhom ne 'no_host') { + $byid{$uhom}{$id} .= $uname.','; + } + } + } + } + if ($namespace eq 'clickers') { + foreach my $server (keys(%byid)) { + if (ref($byid{$server}) eq 'HASH') { + foreach my $id (keys(%{$byid{$server}})) { + $byid{$server}{$id} =~ s/,$//; + $servers{$server}.=&escape($id).'='.&escape($byid{$server}{$id}).'&'; + } + } + } + } + foreach my $server (keys(%servers)) { + $servers{$server} =~ s/\&$//; + if ($namespace eq 'ids') { + $result{$server} = &critical('iddel:'.$udom.':'.$servers{$server},$uhome); + } elsif ($namespace eq 'clickers') { + $result{$server} = &critical('updateclickers:'.$udom.':del:'.$servers{$server},$server); + } + } + return %result; +} + +# ----- Update clicker ID-to-username look-ups in clickers.db on library server + +sub updateclickers { + my ($udom,$action,$idshashref,$uhome,$critical) = @_; + my %clickers; + if (ref($idshashref) eq 'HASH') { + %clickers=%{$idshashref}; + } else { + return; + } + my $items=''; + foreach my $item (keys(%clickers)) { + $items.=&escape($item).'='.&escape($clickers{$item}).'&'; + } + $items=~s/\&$//; + my $request = "updateclickers:$udom:$action:$items"; + if ($critical) { + return &critical($request,$uhome); + } else { + return &reply($request,$uhome); + } +} + +# ------------------------------dump from db file owned by domainconfig user +sub dump_dom { + my ($namespace, $udom, $regexp) = @_; + + $udom ||= $env{'user.domain'}; + + return () unless $udom; + + return &dump($namespace, $udom, &get_domainconfiguser($udom), $regexp); +} + +# ------------------------------------------ get items from domain db files + +sub get_dom { + my ($namespace,$storearr,$udom,$uhome)=@_; + return if ($udom eq 'public'); + my $items=''; + foreach my $item (@$storearr) { + $items.=&escape($item).'&'; + } + $items=~s/\&$//; + if (!$udom) { + $udom=$env{'user.domain'}; + return if ($udom eq 'public'); + if (defined(&domain($udom,'primary'))) { + $uhome=&domain($udom,'primary'); + } else { + undef($uhome); + } + } else { + if (!$uhome) { + if (defined(&domain($udom,'primary'))) { + $uhome=&domain($udom,'primary'); + } + } + } + if ($udom && $uhome && ($uhome ne 'no_host')) { + my $rep; + if (grep { $_ eq $uhome } ¤t_machine_ids()) { + # domain information is hosted on this machine + my $cmd = 'getdom'; + if ($namespace =~ /^enc/) { + $cmd = 'egetdom'; + } + $rep = &LONCAPA::Lond::get_dom("$cmd:$udom:$namespace:$items"); + } else { + if ($namespace =~ /^enc/) { + $rep=&reply("encrypt:egetdom:$udom:$namespace:$items",$uhome); } else { - $servers{$uhom}=$id.'='.$unam; + $rep=&reply("getdom:$udom:$namespace:$items",$uhome); } - &critical('put:'.$udom.':'.$unam.':environment:id='.$id,$uhom); } + my %returnhash; + if ($rep eq '' || $rep =~ /^error: 2 /) { + return %returnhash; + } + my @pairs=split(/\&/,$rep); + if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) { + return @pairs; + } + my $i=0; + foreach my $item (@$storearr) { + $returnhash{$item}=&thaw_unescape($pairs[$i]); + $i++; + } + return %returnhash; + } else { + &logthis("get_dom failed - no homeserver and/or domain ($udom) ($uhome)"); } - foreach (keys %servers) { - &critical('idput:'.$udom.':'.$servers{$_},$_); +} + +# -------------------------------------------- put items in domain db files + +sub put_dom { + my ($namespace,$storehash,$udom,$uhome)=@_; + if (!$udom) { + $udom=$env{'user.domain'}; + if (defined(&domain($udom,'primary'))) { + $uhome=&domain($udom,'primary'); + } else { + undef($uhome); + } + } else { + if (!$uhome) { + if (defined(&domain($udom,'primary'))) { + $uhome=&domain($udom,'primary'); + } + } + } + if ($udom && $uhome && ($uhome ne 'no_host')) { + my $items=''; + foreach my $item (keys(%$storehash)) { + $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&'; + } + $items=~s/\&$//; + if ($namespace =~ /^enc/) { + return &reply("encrypt:putdom:$udom:$namespace:$items",$uhome); + } else { + return &reply("putdom:$udom:$namespace:$items",$uhome); + } + } else { + &logthis("put_dom failed - no homeserver and/or domain"); + } +} + +# --------------------- newput for items in db file owned by domainconfig user +sub newput_dom { + my ($namespace,$storehash,$udom) = @_; + my $result; + if (!$udom) { + $udom=$env{'user.domain'}; + } + if ($udom) { + my $uname = &get_domainconfiguser($udom); + $result = &newput($namespace,$storehash,$udom,$uname); + } + return $result; +} + +# --------------------- delete for items in db file owned by domainconfig user +sub del_dom { + my ($namespace,$storearr,$udom)=@_; + if (ref($storearr) eq 'ARRAY') { + if (!$udom) { + $udom=$env{'user.domain'}; + } + if ($udom) { + my $uname = &get_domainconfiguser($udom); + return &del($namespace,$storearr,$udom,$uname); + } + } +} + +# ----------------------------------construct domainconfig user for a domain +sub get_domainconfiguser { + my ($udom) = @_; + return $udom.'-domainconfig'; +} + +sub retrieve_inst_usertypes { + my ($udom) = @_; + my (%returnhash,@order); + my %domdefs = &Apache::lonnet::get_domain_defaults($udom); + if ((ref($domdefs{'inststatustypes'}) eq 'HASH') && + (ref($domdefs{'inststatusorder'}) eq 'ARRAY')) { + return ($domdefs{'inststatustypes'},$domdefs{'inststatusorder'}); + } else { + if (defined(&domain($udom,'primary'))) { + my $uhome=&domain($udom,'primary'); + my $rep=&reply("inst_usertypes:$udom",$uhome); + if ($rep =~ /^(con_lost|error|no_such_host|refused)/) { + &logthis("retrieve_inst_usertypes failed - $rep returned from $uhome in domain: $udom"); + return (\%returnhash,\@order); + } + my ($hashitems,$orderitems) = split(/:/,$rep); + my @pairs=split(/\&/,$hashitems); + foreach my $item (@pairs) { + my ($key,$value)=split(/=/,$item,2); + $key = &unescape($key); + next if ($key =~ /^error: 2 /); + $returnhash{$key}=&thaw_unescape($value); + } + my @esc_order = split(/\&/,$orderitems); + foreach my $item (@esc_order) { + push(@order,&unescape($item)); + } + } else { + &logthis("retrieve_inst_usertypes failed - no primary domain server for $udom"); + } + return (\%returnhash,\@order); + } +} + +sub is_domainimage { + my ($url) = @_; + if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img|logo|domlogo)/+[^/]-) { + if (&domain($1) ne '') { + return '1'; + } } + return; +} + +sub inst_directory_query { + my ($srch) = @_; + my $udom = $srch->{'srchdomain'}; + my %results; + my $homeserver = &domain($udom,'primary'); + my $outcome; + if ($homeserver ne '') { + unless ($homeserver eq $perlvar{'lonHostID'}) { + if ($srch->{'srchby'} eq 'email') { + my $lcrev = &get_server_loncaparev($udom,$homeserver); + my ($major,$minor) = ($lcrev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/); + if (($major eq '' && $minor eq '') || ($major < 2) || + (($major == 2) && ($minor < 12))) { + return; + } + } + } + my $queryid=&reply("querysend:instdirsearch:". + &escape($srch->{'srchby'}).':'. + &escape($srch->{'srchterm'}).':'. + &escape($srch->{'srchtype'}),$homeserver); + my $host=&hostname($homeserver); + if ($queryid !~/^\Q$host\E\_/) { + &logthis('institutional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.' in domain '.$udom); + return; + } + my $response = &get_query_reply($queryid); + my $maxtries = 5; + my $tries = 1; + while (($response=~/^timeout/) && ($tries < $maxtries)) { + $response = &get_query_reply($queryid); + $tries ++; + } + + if (!&error($response) && $response ne 'refused') { + if ($response eq 'unavailable') { + $outcome = $response; + } else { + $outcome = 'ok'; + my @matches = split(/\n/,$response); + foreach my $match (@matches) { + my ($key,$value) = split(/=/,$match); + $results{&unescape($key).':'.$udom} = &thaw_unescape($value); + } + } + } + } + return ($outcome,%results); +} + +sub usersearch { + my ($srch) = @_; + my $dom = $srch->{'srchdomain'}; + my %results; + my %libserv = &all_library(); + my $query = 'usersearch'; + foreach my $tryserver (keys(%libserv)) { + if (&host_domain($tryserver) eq $dom) { + unless ($tryserver eq $perlvar{'lonHostID'}) { + if ($srch->{'srchby'} eq 'email') { + my $lcrev = &get_server_loncaparev($dom,$tryserver); + my ($major,$minor) = ($lcrev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/); + next if (($major eq '' && $minor eq '') || ($major < 2) || + (($major == 2) && ($minor < 12))); + } + } + my $host=&hostname($tryserver); + my $queryid= + &reply("querysend:".&escape($query).':'. + &escape($srch->{'srchby'}).':'. + &escape($srch->{'srchtype'}).':'. + &escape($srch->{'srchterm'}),$tryserver); + if ($queryid !~/^\Q$host\E\_/) { + &logthis('usersearch: invalid queryid: '.$queryid.' for host: '.$host.'in domain '.$dom.' and server: '.$tryserver); + next; + } + my $reply = &get_query_reply($queryid); + my $maxtries = 1; + my $tries = 1; + while (($reply=~/^timeout/) && ($tries < $maxtries)) { + $reply = &get_query_reply($queryid); + $tries ++; + } + if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) { + &logthis('usersrch error: '.$reply.' for '.$dom.' - searching for : '.$srch->{'srchterm'}.' by '.$srch->{'srchby'}.' ('.$srch->{'srchtype'}.') - maxtries: '.$maxtries.' tries: '.$tries); + } else { + my @matches; + if ($reply =~ /\n/) { + @matches = split(/\n/,$reply); + } else { + @matches = split(/\&/,$reply); + } + foreach my $match (@matches) { + my ($uname,$udom,%userhash); + foreach my $entry (split(/:/,$match)) { + my ($key,$value) = + map {&unescape($_);} split(/=/,$entry); + $userhash{$key} = $value; + if ($key eq 'username') { + $uname = $value; + } elsif ($key eq 'domain') { + $udom = $value; + } + } + $results{$uname.':'.$udom} = \%userhash; + } + } + } + } + return %results; +} + +sub get_instuser { + my ($udom,$uname,$id) = @_; + my $homeserver = &domain($udom,'primary'); + my ($outcome,%results); + if ($homeserver ne '') { + my $queryid=&reply("querysend:getinstuser:".&escape($uname).':'. + &escape($id).':'.&escape($udom),$homeserver); + my $host=&hostname($homeserver); + if ($queryid !~/^\Q$host\E\_/) { + &logthis('get_instuser invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom); + return; + } + my $response = &get_query_reply($queryid); + my $maxtries = 5; + my $tries = 1; + while (($response=~/^timeout/) && ($tries < $maxtries)) { + $response = &get_query_reply($queryid); + $tries ++; + } + if (!&error($response) && $response ne 'refused') { + if ($response eq 'unavailable') { + $outcome = $response; + } else { + $outcome = 'ok'; + my @matches = split(/\n/,$response); + foreach my $match (@matches) { + my ($key,$value) = split(/=/,$match); + $results{&unescape($key)} = &thaw_unescape($value); + } + } + } + } + my %userinfo; + if (ref($results{$uname}) eq 'HASH') { + %userinfo = %{$results{$uname}}; + } + return ($outcome,%userinfo); +} + +sub get_multiple_instusers { + my ($udom,$users,$caller) = @_; + my ($outcome,$results); + if (ref($users) eq 'HASH') { + my $count = keys(%{$users}); + my $requested = &freeze_escape($users); + my $homeserver = &domain($udom,'primary'); + if ($homeserver ne '') { + my $queryid=&reply('querysend:getmultinstusers:::'.$caller.'='.$requested,$homeserver); + my $host=&hostname($homeserver); + if ($queryid !~/^\Q$host\E\_/) { + &logthis('get_multiple_instusers invalid queryid: '.$queryid. + ' for host: '.$homeserver.'in domain '.$udom); + return ($outcome,$results); + } + my $response = &get_query_reply($queryid); + my $maxtries = 5; + if ($count > 100) { + $maxtries = 1+int($count/20); + } + my $tries = 1; + while (($response=~/^timeout/) && ($tries <= $maxtries)) { + $response = &get_query_reply($queryid); + $tries ++; + } + if ($response eq '') { + $results = {}; + foreach my $key (keys(%{$users})) { + my ($uname,$id); + if ($caller eq 'id') { + $id = $key; + } else { + $uname = $key; + } + my ($resp,%info) = &get_instuser($udom,$uname,$id); + $outcome = $resp; + if ($resp eq 'ok') { + %{$results} = (%{$results}, %info); + } else { + last; + } + } + } elsif(!&error($response) && ($response ne 'refused')) { + if (($response eq 'unavailable') || ($response eq 'invalid') || ($response eq 'timeout')) { + $outcome = $response; + } else { + ($outcome,my $userdata) = split(/=/,$response,2); + if ($outcome eq 'ok') { + $results = &thaw_unescape($userdata); + } + } + } + } + } + return ($outcome,$results); +} + +sub inst_rulecheck { + my ($udom,$uname,$id,$item,$rules) = @_; + my %returnhash; + if ($udom ne '') { + if (ref($rules) eq 'ARRAY') { + @{$rules} = map {&escape($_);} (@{$rules}); + my $rulestr = join(':',@{$rules}); + my $homeserver=&domain($udom,'primary'); + if (($homeserver ne '') && ($homeserver ne 'no_host')) { + my $response; + if ($item eq 'username') { + $response=&unescape(&reply('instrulecheck:'.&escape($udom). + ':'.&escape($uname).':'.$rulestr, + $homeserver)); + } elsif ($item eq 'id') { + $response=&unescape(&reply('instidrulecheck:'.&escape($udom). + ':'.&escape($id).':'.$rulestr, + $homeserver)); + } elsif ($item eq 'selfcreate') { + $response=&unescape(&reply('instselfcreatecheck:'. + &escape($udom).':'.&escape($uname). + ':'.$rulestr,$homeserver)); + } + if ($response ne 'refused') { + my @pairs=split(/\&/,$response); + foreach my $item (@pairs) { + my ($key,$value)=split(/=/,$item,2); + $key = &unescape($key); + next if ($key =~ /^error: 2 /); + $returnhash{$key}=&thaw_unescape($value); + } + } + } + } + } + return %returnhash; +} + +sub inst_userrules { + my ($udom,$check) = @_; + my (%ruleshash,@ruleorder); + if ($udom ne '') { + my $homeserver=&domain($udom,'primary'); + if (($homeserver ne '') && ($homeserver ne 'no_host')) { + my $response; + if ($check eq 'id') { + $response=&reply('instidrules:'.&escape($udom), + $homeserver); + } elsif ($check eq 'email') { + $response=&reply('instemailrules:'.&escape($udom), + $homeserver); + } else { + $response=&reply('instuserrules:'.&escape($udom), + $homeserver); + } + if (($response ne 'refused') && ($response ne 'error') && + ($response ne 'unknown_cmd') && + ($response ne 'no_such_host')) { + my ($hashitems,$orderitems) = split(/:/,$response); + my @pairs=split(/\&/,$hashitems); + foreach my $item (@pairs) { + my ($key,$value)=split(/=/,$item,2); + $key = &unescape($key); + next if ($key =~ /^error: 2 /); + $ruleshash{$key}=&thaw_unescape($value); + } + my @esc_order = split(/\&/,$orderitems); + foreach my $item (@esc_order) { + push(@ruleorder,&unescape($item)); + } + } + } + } + return (\%ruleshash,\@ruleorder); +} + +# ------------- Get Authentication, Language and User Tools Defaults for Domain + +sub get_domain_defaults { + my ($domain,$ignore_cache) = @_; + return if (($domain eq '') || ($domain eq 'public')); + my $cachetime = 60*60*24; + unless ($ignore_cache) { + my ($result,$cached)=&is_cached_new('domdefaults',$domain); + if (defined($cached)) { + if (ref($result) eq 'HASH') { + return %{$result}; + } + } + } + my %domdefaults; + my %domconfig = + &Apache::lonnet::get_dom('configuration',['defaults','quotas', + 'requestcourses','inststatus', + 'coursedefaults','usersessions', + 'requestauthor','selfenrollment', + 'coursecategories','ssl','autoenroll', + 'trust','helpsettings','wafproxy'],$domain); + my @coursetypes = ('official','unofficial','community','textbook','placement'); + if (ref($domconfig{'defaults'}) eq 'HASH') { + $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'}; + $domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'}; + $domdefaults{'auth_arg_def'} = $domconfig{'defaults'}{'auth_arg_def'}; + $domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'}; + $domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'}; + $domdefaults{'portal_def'} = $domconfig{'defaults'}{'portal_def'}; + $domdefaults{'intauth_cost'} = $domconfig{'defaults'}{'intauth_cost'}; + $domdefaults{'intauth_switch'} = $domconfig{'defaults'}{'intauth_switch'}; + $domdefaults{'intauth_check'} = $domconfig{'defaults'}{'intauth_check'}; + } else { + $domdefaults{'lang_def'} = &domain($domain,'lang_def'); + $domdefaults{'auth_def'} = &domain($domain,'auth_def'); + $domdefaults{'auth_arg_def'} = &domain($domain,'auth_arg_def'); + } + if (ref($domconfig{'quotas'}) eq 'HASH') { + if (ref($domconfig{'quotas'}{'defaultquota'}) eq 'HASH') { + $domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'}; + } else { + $domdefaults{'defaultquota'} = $domconfig{'quotas'}; + } + my @usertools = ('aboutme','blog','webdav','portfolio'); + foreach my $item (@usertools) { + if (ref($domconfig{'quotas'}{$item}) eq 'HASH') { + $domdefaults{$item} = $domconfig{'quotas'}{$item}; + } + } + if (ref($domconfig{'quotas'}{'authorquota'}) eq 'HASH') { + $domdefaults{'authorquota'} = $domconfig{'quotas'}{'authorquota'}; + } + } + if (ref($domconfig{'requestcourses'}) eq 'HASH') { + foreach my $item ('official','unofficial','community','textbook','placement') { + $domdefaults{$item} = $domconfig{'requestcourses'}{$item}; + } + } + if (ref($domconfig{'requestauthor'}) eq 'HASH') { + $domdefaults{'requestauthor'} = $domconfig{'requestauthor'}; + } + if (ref($domconfig{'inststatus'}) eq 'HASH') { + foreach my $item ('inststatustypes','inststatusorder','inststatusguest') { + $domdefaults{$item} = $domconfig{'inststatus'}{$item}; + } + } + if (ref($domconfig{'coursedefaults'}) eq 'HASH') { + $domdefaults{'canuse_pdfforms'} = $domconfig{'coursedefaults'}{'canuse_pdfforms'}; + $domdefaults{'usejsme'} = $domconfig{'coursedefaults'}{'usejsme'}; + $domdefaults{'uselcmath'} = $domconfig{'coursedefaults'}{'uselcmath'}; + if (ref($domconfig{'coursedefaults'}{'postsubmit'}) eq 'HASH') { + $domdefaults{'postsubmit'} = $domconfig{'coursedefaults'}{'postsubmit'}{'client'}; + } + foreach my $type (@coursetypes) { + if (ref($domconfig{'coursedefaults'}{'coursecredits'}) eq 'HASH') { + unless ($type eq 'community') { + $domdefaults{$type.'credits'} = $domconfig{'coursedefaults'}{'coursecredits'}{$type}; + } + } + if (ref($domconfig{'coursedefaults'}{'uploadquota'}) eq 'HASH') { + $domdefaults{$type.'quota'} = $domconfig{'coursedefaults'}{'uploadquota'}{$type}; + } + if ($domdefaults{'postsubmit'} eq 'on') { + if (ref($domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}) eq 'HASH') { + $domdefaults{$type.'postsubtimeout'} = + $domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}{$type}; + } + } + } + if (ref($domconfig{'coursedefaults'}{'canclone'}) eq 'HASH') { + if (ref($domconfig{'coursedefaults'}{'canclone'}{'instcode'}) eq 'ARRAY') { + my @clonecodes = @{$domconfig{'coursedefaults'}{'canclone'}{'instcode'}}; + if (@clonecodes) { + $domdefaults{'canclone'} = join('+',@clonecodes); + } + } + } elsif ($domconfig{'coursedefaults'}{'canclone'}) { + $domdefaults{'canclone'}=$domconfig{'coursedefaults'}{'canclone'}; + } + if ($domconfig{'coursedefaults'}{'texengine'}) { + $domdefaults{'texengine'} = $domconfig{'coursedefaults'}{'texengine'}; + } + } + if (ref($domconfig{'usersessions'}) eq 'HASH') { + if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') { + $domdefaults{'remotesessions'} = $domconfig{'usersessions'}{'remote'}; + } + if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') { + $domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'}; + } + if (ref($domconfig{'usersessions'}{'offloadnow'}) eq 'HASH') { + $domdefaults{'offloadnow'} = $domconfig{'usersessions'}{'offloadnow'}; + } + if (ref($domconfig{'usersessions'}{'offloadoth'}) eq 'HASH') { + $domdefaults{'offloadoth'} = $domconfig{'usersessions'}{'offloadoth'}; + } + } + if (ref($domconfig{'selfenrollment'}) eq 'HASH') { + if (ref($domconfig{'selfenrollment'}{'admin'}) eq 'HASH') { + my @settings = ('types','registered','enroll_dates','access_dates','section', + 'approval','limit'); + foreach my $type (@coursetypes) { + if (ref($domconfig{'selfenrollment'}{'admin'}{$type}) eq 'HASH') { + my @mgrdc = (); + foreach my $item (@settings) { + if ($domconfig{'selfenrollment'}{'admin'}{$type}{$item} eq '0') { + push(@mgrdc,$item); + } + } + if (@mgrdc) { + $domdefaults{$type.'selfenrolladmdc'} = join(',',@mgrdc); + } + } + } + } + if (ref($domconfig{'selfenrollment'}{'default'}) eq 'HASH') { + foreach my $type (@coursetypes) { + if (ref($domconfig{'selfenrollment'}{'default'}{$type}) eq 'HASH') { + foreach my $item (keys(%{$domconfig{'selfenrollment'}{'default'}{$type}})) { + $domdefaults{$type.'selfenroll'.$item} = $domconfig{'selfenrollment'}{'default'}{$type}{$item}; + } + } + } + } + } + if (ref($domconfig{'coursecategories'}) eq 'HASH') { + $domdefaults{'catauth'} = 'std'; + $domdefaults{'catunauth'} = 'std'; + if ($domconfig{'coursecategories'}{'auth'}) { + $domdefaults{'catauth'} = $domconfig{'coursecategories'}{'auth'}; + } + if ($domconfig{'coursecategories'}{'unauth'}) { + $domdefaults{'catunauth'} = $domconfig{'coursecategories'}{'unauth'}; + } + } + if (ref($domconfig{'ssl'}) eq 'HASH') { + if (ref($domconfig{'ssl'}{'replication'}) eq 'HASH') { + $domdefaults{'replication'} = $domconfig{'ssl'}{'replication'}; + } + if (ref($domconfig{'ssl'}{'connto'}) eq 'HASH') { + $domdefaults{'connect'} = $domconfig{'ssl'}{'connto'}; + } + if (ref($domconfig{'ssl'}{'connfrom'}) eq 'HASH') { + $domdefaults{'connect'} = $domconfig{'ssl'}{'connfrom'}; + } + } + if (ref($domconfig{'trust'}) eq 'HASH') { + my @prefixes = qw(content shared enroll othcoau coaurem domroles catalog reqcrs msg); + foreach my $prefix (@prefixes) { + if (ref($domconfig{'trust'}{$prefix}) eq 'HASH') { + $domdefaults{'trust'.$prefix} = $domconfig{'trust'}{$prefix}; + } + } + } + if (ref($domconfig{'autoenroll'}) eq 'HASH') { + $domdefaults{'autofailsafe'} = $domconfig{'autoenroll'}{'autofailsafe'}; + } + if (ref($domconfig{'helpsettings'}) eq 'HASH') { + $domdefaults{'submitbugs'} = $domconfig{'helpsettings'}{'submitbugs'}; + if (ref($domconfig{'helpsettings'}{'adhoc'}) eq 'HASH') { + $domdefaults{'adhocroles'} = $domconfig{'helpsettings'}{'adhoc'}; + } + } + if (ref($domconfig{'wafproxy'}) eq 'HASH') { + foreach my $item ('ipheader','trusted','vpnint','vpnext','sslopt') { + if ($domconfig{'wafproxy'}{$item}) { + $domdefaults{'waf_'.$item} = $domconfig{'wafproxy'}{$item}; + } + } + } + &do_cache_new('domdefaults',$domain,\%domdefaults,$cachetime); + return %domdefaults; +} + +sub get_dom_cats { + my ($dom) = @_; + return unless (&domain($dom)); + my ($cats,$cached)=&is_cached_new('cats',$dom); + unless (defined($cached)) { + my %domconfig = &get_dom('configuration',['coursecategories'],$dom); + if (ref($domconfig{'coursecategories'}) eq 'HASH') { + if (ref($domconfig{'coursecategories'}{'cats'}) eq 'HASH') { + %{$cats} = %{$domconfig{'coursecategories'}{'cats'}}; + } else { + $cats = {}; + } + } else { + $cats = {}; + } + &Apache::lonnet::do_cache_new('cats',$dom,$cats,3600); + } + return $cats; +} + +sub get_dom_instcats { + my ($dom) = @_; + return unless (&domain($dom)); + my ($instcats,$cached)=&is_cached_new('instcats',$dom); + unless (defined($cached)) { + my (%coursecodes,%codes,@codetitles,%cat_titles,%cat_order); + my $totcodes = &retrieve_instcodes(\%coursecodes,$dom); + if ($totcodes > 0) { + my $caller = 'global'; + if (&auto_instcode_format($caller,$dom,\%coursecodes,\%codes, + \@codetitles,\%cat_titles,\%cat_order) eq 'ok') { + $instcats = { + codes => \%codes, + codetitles => \@codetitles, + cat_titles => \%cat_titles, + cat_order => \%cat_order, + }; + &do_cache_new('instcats',$dom,$instcats,3600); + } + } + } + return $instcats; +} + +sub retrieve_instcodes { + my ($coursecodes,$dom) = @_; + my $totcodes; + my %courses = &courseiddump($dom,'.',1,'.','.','.',undef,undef,'Course'); + foreach my $course (keys(%courses)) { + if (ref($courses{$course}) eq 'HASH') { + if ($courses{$course}{'inst_code'} ne '') { + $$coursecodes{$course} = $courses{$course}{'inst_code'}; + $totcodes ++; + } + } + } + return $totcodes; +} + +sub course_portal_url { + my ($cnum,$cdom,$r) = @_; + my $chome = &homeserver($cnum,$cdom); + my $hostname = &hostname($chome); + my $protocol = $protocol{$chome}; + $protocol = 'http' if ($protocol ne 'https'); + my %domdefaults = &get_domain_defaults($cdom); + my $firsturl; + if ($domdefaults{'portal_def'}) { + $firsturl = $domdefaults{'portal_def'}; + } else { + my $alias = &Apache::lonnet::use_proxy_alias($r,$chome); + $hostname = $alias if ($alias ne ''); + $firsturl = $protocol.'://'.$hostname; + } + return $firsturl; +} + +# --------------------------------------------- Get domain config for passwords + +sub get_passwdconf { + my ($dom) = @_; + my (%passwdconf,$gotconf,$lookup); + my ($result,$cached)=&is_cached_new('passwdconf',$dom); + if (defined($cached)) { + if (ref($result) eq 'HASH') { + %passwdconf = %{$result}; + $gotconf = 1; + } + } + unless ($gotconf) { + my %domconfig = &get_dom('configuration',['passwords'],$dom); + if (ref($domconfig{'passwords'}) eq 'HASH') { + %passwdconf = %{$domconfig{'passwords'}}; + } + my $cachetime = 24*60*60; + &do_cache_new('passwdconf',$dom,\%passwdconf,$cachetime); + } + return %passwdconf; } # --------------------------------------------------- Assign a key to a student @@ -645,28 +2900,32 @@ sub assign_access_key { # a valid key looks like uname:udom#comments # comments are being appended # - my ($ckey,$cdom,$cnum,$udom,$uname,$logentry)=@_; + my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_; + $kdom= + $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom)); + $knum= + $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum)); $cdom= - $ENV{'course.'.$ENV{'request.course.id'}.'.domain'} unless (defined($cdom)); + $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom)); $cnum= - $ENV{'course.'.$ENV{'request.course.id'}.'.num'} unless (defined($cnum)); - $udom=$ENV{'user.name'} unless (defined($udom)); - $uname=$ENV{'user.domain'} unless (defined($uname)); - my %existing=&get('accesskeys',[$ckey],$cdom,$cnum); + $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum)); + $udom=$env{'user.name'} unless (defined($udom)); + $uname=$env{'user.domain'} unless (defined($uname)); + my %existing=&get('accesskeys',[$ckey],$kdom,$knum); if (($existing{$ckey}=~/^\#(.*)$/) || # - new key - ($existing{$ckey}=~/^$uname\:$udom\#(.*)$/)) { + ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) { # assigned to this person # - this should not happen, # unless something went wrong # the first time around # ready to assign $logentry=$1.'; '.$logentry; - if (&put('accesskey',{$ckey=>$uname.':'.$udom.'#'.$logentry}, - $cdom,$cnum) eq 'ok') { + if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry}, + $kdom,$knum) eq 'ok') { # key now belongs to user my $envkey='key.'.$cdom.'_'.$cnum; if (&put('environment',{$envkey => $ckey}) eq 'ok') { - &appenv('environment.'.$envkey => $ckey); + &appenv({'environment.'.$envkey => $ckey}); return 'ok'; } else { return @@ -693,9 +2952,9 @@ sub comment_access_key { # my ($ckey,$cdom,$cnum,$logentry)=@_; $cdom= - $ENV{'course.'.$ENV{'request.course.id'}.'.domain'} unless (defined($cdom)); + $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom)); $cnum= - $ENV{'course.'.$ENV{'request.course.id'}.'.num'} unless (defined($cnum)); + $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum)); my %existing=&get('accesskeys',[$ckey],$cdom,$cnum); if ($existing{$ckey}) { $existing{$ckey}.='; '.$logentry; @@ -717,9 +2976,9 @@ sub comment_access_key { sub generate_access_keys { my ($number,$cdom,$cnum,$logentry)=@_; $cdom= - $ENV{'course.'.$ENV{'request.course.id'}.'.domain'} unless (defined($cdom)); + $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom)); $cnum= - $ENV{'course.'.$ENV{'request.course.id'}.'.num'} unless (defined($cnum)); + $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum)); unless (&allowed('mky',$cdom)) { return 0; } unless (($cdom) && ($cnum)) { return 0; } if ($number>10000) { return 0; } @@ -738,14 +2997,14 @@ sub generate_access_keys { } else { if (&put('accesskeys', { $newkey => '# generated '.localtime(). - ' by '.$ENV{'user.name'}.'@'.$ENV{'user.domain'}. + ' by '.$env{'user.name'}.'@'.$env{'user.domain'}. '; '.$logentry }, $cdom,$cnum) eq 'ok') { $total++; } } } - &log($ENV{'user.domain'},$ENV{'user.name'},$ENV{'user.home'}, + &log($env{'user.domain'},$env{'user.name'},$env{'user.home'}, 'Generated '.$total.' keys for '.$cnum.' at '.$cdom); return $total; } @@ -755,21 +3014,49 @@ sub generate_access_keys { sub validate_access_key { my ($ckey,$cdom,$cnum,$udom,$uname)=@_; $cdom= - $ENV{'course.'.$ENV{'request.course.id'}.'.domain'} unless (defined($cdom)); + $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom)); $cnum= - $ENV{'course.'.$ENV{'request.course.id'}.'.num'} unless (defined($cnum)); - $udom=$ENV{'user.name'} unless (defined($udom)); - $uname=$ENV{'user.domain'} unless (defined($uname)); + $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum)); + $udom=$env{'user.domain'} unless (defined($udom)); + $uname=$env{'user.name'} unless (defined($uname)); my %existing=&get('accesskeys',[$ckey],$cdom,$cnum); - return ($existing{$ckey}=~/^$uname\:$udom\#/); + return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/); } # ------------------------------------- Find the section of student in a course +sub devalidate_getsection_cache { + my ($udom,$unam,$courseid)=@_; + my $hashid="$udom:$unam:$courseid"; + &devalidate_cache_new('getsection',$hashid); +} + +sub courseid_to_courseurl { + my ($courseid) = @_; + #already url style courseid + return $courseid if ($courseid =~ m{^/}); + + if (exists($env{'course.'.$courseid.'.num'})) { + my $cnum = $env{'course.'.$courseid.'.num'}; + my $cdom = $env{'course.'.$courseid.'.domain'}; + return "/$cdom/$cnum"; + } + + my %courseinfo=&Apache::lonnet::coursedescription($courseid); + if (exists($courseinfo{'num'})) { + return "/$courseinfo{'domain'}/$courseinfo{'num'}"; + } + + return undef; +} sub getsection { my ($udom,$unam,$courseid)=@_; - $courseid=~s/\_/\//g; - $courseid=~s/^(\w)/\/$1/; + my $cachetime=1800; + + my $hashid="$udom:$unam:$courseid"; + my ($result,$cached)=&is_cached_new('getsection',$hashid); + if (defined($cached)) { return $result; } + my %Pending; my %Expired; # @@ -785,254 +3072,265 @@ sub getsection { # If there is more than one expired role, choose the one which ended last. # If there is a role which has expired, return it. # - foreach (split(/\&/,&reply('dump:'.$udom.':'.$unam.':roles', - &homeserver($unam,$udom)))) { - my ($key,$value)=split(/\=/,$_); - $key=&unescape($key); - next if ($key !~/^$courseid(?:\/)*(\w+)*\_st$/); + $courseid = &courseid_to_courseurl($courseid); + my %roleshash = &dump('roles',$udom,$unam,$courseid); + foreach my $key (keys(%roleshash)) { + next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/); my $section=$1; if ($key eq $courseid.'_st') { $section=''; } - my ($dummy,$end,$start)=split(/\_/,&unescape($value)); + my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key})); my $now=time; - if (defined($end) && ($now > $end)) { + if (defined($end) && $end && ($now > $end)) { $Expired{$end}=$section; next; } - if (defined($start) && ($now < $start)) { + if (defined($start) && $start && ($now < $start)) { $Pending{$start}=$section; next; } - return $section; + return &do_cache_new('getsection',$hashid,$section,$cachetime); } # # Presumedly there will be few matching roles from the above # loop and the sorting time will be negligible. if (scalar(keys(%Pending))) { my ($time) = sort {$a <=> $b} keys(%Pending); - return $Pending{$time}; + return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime); } if (scalar(keys(%Expired))) { my @sorted = sort {$a <=> $b} keys(%Expired); my $time = pop(@sorted); - return $Expired{$time}; + return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime); } - return '-1'; + return &do_cache_new('getsection',$hashid,'-1',$cachetime); } -sub devalidate_cache { - my ($cache,$id,$name) = @_; - delete $$cache{$id.'.time'}; - delete $$cache{$id}; - my $filename=$perlvar{'lonDaemons'}.'/tmp/lonnet_internal_cache_'.$name.".db"; - open(DB,"$filename.lock"); - flock(DB,LOCK_EX); - my %hash; - if (tie(%hash,'GDBM_File',$filename,&GDBM_WRCREAT(),0640)) { - eval <<'EVALBLOCK'; - delete($hash{$id}); - delete($hash{$id.'.time'}); -EVALBLOCK - if ($@) { - &logthis("devalidate_cache blew up :$@:$name"); - unlink($filename); - } - } else { - if (-e $filename) { - &logthis("Unable to tie hash (devalidate cache): $name"); - unlink($filename); - } - } - untie(%hash); - flock(DB,LOCK_UN); - close(DB); -} - -sub is_cached { - my ($cache,$id,$name,$time) = @_; - if (!$time) { $time=300; } - if (!exists($$cache{$id.'.time'})) { - &load_cache_item($cache,$name,$id); - } - if (!exists($$cache{$id.'.time'})) { -# &logthis("Didn't find $id"); +sub save_cache { + &purge_remembered(); + #&Apache::loncommon::validate_page(); + undef(%env); + undef($env_loaded); +} + +my $to_remember=-1; +my %remembered; +my %accessed; +my $kicks=0; +my $hits=0; +sub make_key { + my ($name,$id) = @_; + if (length($id) > 65 + && length(&escape($id)) > 200) { + $id=length($id).':'.&Digest::MD5::md5_hex($id); + } + return &escape($name.':'.$id); +} + +sub devalidate_cache_new { + my ($name,$id,$debug) = @_; + if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); } + my $remembered_id=$name.':'.$id; + $id=&make_key($name,$id); + $memcache->delete($id); + delete($remembered{$remembered_id}); + delete($accessed{$remembered_id}); +} + +sub is_cached_new { + my ($name,$id,$debug) = @_; + my $remembered_id=$name.':'.$id; # this is to avoid make_key (which is slow) whenever possible + if (exists($remembered{$remembered_id})) { + if ($debug) { &Apache::lonnet::logthis("Early return $remembered_id of $remembered{$remembered_id} "); } + $accessed{$remembered_id}=[&gettimeofday()]; + $hits++; + return ($remembered{$remembered_id},1); + } + $id=&make_key($name,$id); + my $value = $memcache->get($id); + if (!(defined($value))) { + if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); } return (undef,undef); - } else { - if (time-($$cache{$id.'.time'})>$time) { -# &logthis("Devalidating $id - ".time-($$cache{$id.'.time'})); - &devalidate_cache($cache,$id,$name); - return (undef,undef); + } + if ($value eq '__undef__') { + if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); } + $value=undef; + } + &make_room($remembered_id,$value,$debug); + if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); } + return ($value,1); +} + +sub do_cache_new { + my ($name,$id,$value,$time,$debug) = @_; + my $remembered_id=$name.':'.$id; + $id=&make_key($name,$id); + my $setvalue=$value; + if (!defined($setvalue)) { + $setvalue='__undef__'; + } + if (!defined($time) ) { + $time=600; + } + if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); } + my $result = $memcache->set($id,$setvalue,$time); + if (! $result) { + &logthis("caching of id -> $id failed"); + $memcache->disconnect_all(); + } + # need to make a copy of $value + &make_room($remembered_id,$value,$debug); + return $value; +} + +sub make_room { + my ($remembered_id,$value,$debug)=@_; + + $remembered{$remembered_id}= (ref($value)) ? &Storable::dclone($value) + : $value; + if ($to_remember<0) { return; } + $accessed{$remembered_id}=[&gettimeofday()]; + if (scalar(keys(%remembered)) <= $to_remember) { return; } + my $to_kick; + my $max_time=0; + foreach my $other (keys(%accessed)) { + if (&tv_interval($accessed{$other}) > $max_time) { + $to_kick=$other; + $max_time=&tv_interval($accessed{$other}); } } - return ($$cache{$id},1); + delete($remembered{$to_kick}); + delete($accessed{$to_kick}); + $kicks++; + if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); } + return; } -sub do_cache { - my ($cache,$id,$value,$name) = @_; - $$cache{$id.'.time'}=time; - $$cache{$id}=$value; -# &logthis("Caching $id as :$value:"); - &save_cache_item($cache,$name,$id); - # do_cache implictly return the set value - $$cache{$id}; +sub purge_remembered { + #&logthis("Tossing ".scalar(keys(%remembered))); + #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered)))); + undef(%remembered); + undef(%accessed); } +# ------------------------------------- Read an entry from a user's environment -sub save_cache_item { - my ($cache,$name,$id)=@_; - my $starttime=&Time::HiRes::time(); -# &logthis("Saving :$name:$id"); - my %hash; - my $filename=$perlvar{'lonDaemons'}.'/tmp/lonnet_internal_cache_'.$name.".db"; - open(DB,"$filename.lock"); - flock(DB,LOCK_EX); - if (tie(%hash,'GDBM_File',$filename,&GDBM_WRCREAT(),0640)) { - eval <<'EVALBLOCK'; - $hash{$id.'.time'}=$$cache{$id.'.time'}; - $hash{$id}=freeze({'item'=>$$cache{$id}}); -EVALBLOCK - if ($@) { - &logthis("save_cache blew up :$@:$name"); - unlink($filename); - } - } else { - if (-e $filename) { - &logthis("Unable to tie hash (save cache item): $name ($!)"); - unlink($filename); - } - } - untie(%hash); - flock(DB,LOCK_UN); - close(DB); -# &logthis("save_cache_item $name took ".(&Time::HiRes::time()-$starttime)); -} - -sub load_cache_item { - my ($cache,$name,$id)=@_; - my $starttime=&Time::HiRes::time(); -# &logthis("Before Loading $name for $id size is ".scalar(%$cache)); - my %hash; - my $filename=$perlvar{'lonDaemons'}.'/tmp/lonnet_internal_cache_'.$name.".db"; - open(DB,"$filename.lock"); - flock(DB,LOCK_SH); - if (tie(%hash,'GDBM_File',$filename,&GDBM_READER(),0640)) { - eval <<'EVALBLOCK'; - if (!%$cache) { - my $count; - while (my ($key,$value)=each(%hash)) { - $count++; - if ($key =~ /\.time$/) { - $$cache{$key}=$value; - } else { - my $hashref=thaw($value); - $$cache{$key}=$hashref->{'item'}; - } - } -# &logthis("Initial load: $count"); - } else { - my $hashref=thaw($hash{$id}); - $$cache{$id}=$hashref->{'item'}; - $$cache{$id.'.time'}=$hash{$id.'.time'}; - } -EVALBLOCK - if ($@) { - &logthis("load_cache blew up :$@:$name"); - unlink($filename); - } - } else { - if (-e $filename) { - &logthis("Unable to tie hash (load cache item): $name ($!)"); - unlink($filename); - } +sub userenvironment { + my ($udom,$unam,@what)=@_; + my $items; + foreach my $item (@what) { + $items.=&escape($item).'&'; + } + $items=~s/\&$//; + my %returnhash=(); + my $uhome = &homeserver($unam,$udom); + unless ($uhome eq 'no_host') { + my @answer=split(/\&/, + &reply('get:'.$udom.':'.$unam.':environment:'.$items,$uhome)); + if ($#answer==0 && $answer[0] =~ /^(con_lost|error:|no_such_host)/i) { + return %returnhash; + } + my $i; + for ($i=0;$i<=$#what;$i++) { + $returnhash{$what[$i]}=&unescape($answer[$i]); + } } - untie(%hash); - flock(DB,LOCK_UN); - close(DB); -# &logthis("After Loading $name size is ".scalar(%$cache)); -# &logthis("load_cache_item $name took ".(&Time::HiRes::time()-$starttime)); + return %returnhash; } -sub usection { - my ($udom,$unam,$courseid)=@_; - my $hashid="$udom:$unam:$courseid"; - - my ($result,$cached)=&is_cached(\%usectioncache,$hashid,'usection'); - if (defined($cached)) { return $result; } - $courseid=~s/\_/\//g; - $courseid=~s/^(\w)/\/$1/; - foreach (split(/\&/,&reply('dump:'.$udom.':'.$unam.':roles', - &homeserver($unam,$udom)))) { - my ($key,$value)=split(/\=/,$_); - $key=&unescape($key); - if ($key=~/^$courseid(?:\/)*(\w+)*\_st$/) { - my $section=$1; - if ($key eq $courseid.'_st') { $section=''; } - my ($dummy,$end,$start)=split(/\_/,&unescape($value)); - my $now=time; - my $notactive=0; - if ($start) { - if ($now<$start) { $notactive=1; } +# ---------------------------------------------------------- Get a studentphoto +sub studentphoto { + my ($udom,$unam,$ext) = @_; + my $home=&Apache::lonnet::homeserver($unam,$udom); + if (defined($env{'request.course.id'})) { + if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) { + if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) { + return(&retrievestudentphoto($udom,$unam,$ext)); + } else { + my ($result,$perm_reqd)= + &Apache::lonnet::auto_photo_permission($unam,$udom); + if ($result eq 'ok') { + if (!($perm_reqd eq 'yes')) { + return(&retrievestudentphoto($udom,$unam,$ext)); + } + } + } + } + } else { + my ($result,$perm_reqd) = + &Apache::lonnet::auto_photo_permission($unam,$udom); + if ($result eq 'ok') { + if (!($perm_reqd eq 'yes')) { + return(&retrievestudentphoto($udom,$unam,$ext)); } - if ($end) { - if ($now>$end) { $notactive=1; } - } - unless ($notactive) { - return &do_cache(\%usectioncache,$hashid,$section,'usection'); - } } } - return &do_cache(\%usectioncache,$hashid,'-1','usection'); + return '/adm/lonKaputt/lonlogo_broken.gif'; } -# ------------------------------------- Read an entry from a user's environment - -sub userenvironment { - my ($udom,$unam,@what)=@_; - my %returnhash=(); - my @answer=split(/\&/, - &reply('get:'.$udom.':'.$unam.':environment:'.join('&',@what), - &homeserver($unam,$udom))); - my $i; - for ($i=0;$i<=$#what;$i++) { - $returnhash{$what[$i]}=&unescape($answer[$i]); +sub retrievestudentphoto { + my ($udom,$unam,$ext,$type) = @_; + my $home=&Apache::lonnet::homeserver($unam,$udom); + my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext:$type",$home); + if ($ret eq 'ok') { + my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext"; + if ($type eq 'thumbnail') { + $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext"; + } + my $tokenurl=&Apache::lonnet::tokenwrapper($url); + return $tokenurl; + } else { + if ($type eq 'thumbnail') { + return '/adm/lonKaputt/genericstudent_tn.gif'; + } else { + return '/adm/lonKaputt/lonlogo_broken.gif'; + } } - return %returnhash; } # -------------------------------------------------------------------- New chat sub chatsend { - my ($newentry,$anon)=@_; - my $cnum=$ENV{'course.'.$ENV{'request.course.id'}.'.num'}; - my $cdom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}; - my $chome=$ENV{'course.'.$ENV{'request.course.id'}.'.home'}; + my ($newentry,$anon,$group)=@_; + my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'}; + my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'}; + my $chome=$env{'course.'.$env{'request.course.id'}.'.home'}; &reply('chatsend:'.$cdom.':'.$cnum.':'. - &escape($ENV{'user.domain'}.':'.$ENV{'user.name'}.':'.$anon.':'. - &escape($newentry)),$chome); + &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'. + &escape($newentry)).':'.$group,$chome); } # ------------------------------------------ Find current version of a resource sub getversion { my $fname=&clutter(shift); - unless ($fname=~/^\/res\//) { return -1; } + unless ($fname=~m{^(/adm/wrapper|)/res/}) { return -1; } return ¤tversion(&filelocation('',$fname)); } sub currentversion { my $fname=shift; - my ($result,$cached)=&is_cached(\%resversioncache,$fname,'resversion',600); - if (defined($cached)) { return $result; } my $author=$fname; $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/; my ($udom,$uname)=split(/\//,$author); - my $home=homeserver($uname,$udom); + my $home=&homeserver($uname,$udom); if ($home eq 'no_host') { return -1; } - my $answer=reply("currentversion:$fname",$home); + my $answer=&reply("currentversion:$fname",$home); if (($answer eq 'con_lost') || ($answer eq 'rejected')) { return -1; } - return &do_cache(\%resversioncache,$fname,$answer,'resversion'); + return $answer; +} + +# +# Return special version number of resource if set by override, empty otherwise +# +sub usedversion { + my $fname=shift; + unless ($fname) { $fname=$env{'request.uri'}; } + my ($urlversion)=($fname=~/\.(\d+)\.\w+$/); + if ($urlversion) { return $urlversion; } + return ''; } # ----------------------------- Subscribe to a resource, return URL if possible @@ -1040,6 +3338,7 @@ sub currentversion { sub subscribe { my $fname=shift; if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; } + $fname=~s/[\n\r]//g; my $author=$fname; $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/; my ($udom,$uname)=split(/\//,$author); @@ -1059,21 +3358,29 @@ sub subscribe { sub repcopy { my $filename=shift; $filename=~s/\/+/\//g; - if ($filename=~/^\/home\/httpd\/html\/adm\//) { return OK; } + my $londocroot = $perlvar{'lonDocRoot'}; + if ($filename=~m{^\Q$londocroot/adm/\E}) { return 'ok'; } + if ($filename=~m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; } + if ($filename=~m{^\Q$londocroot/userfiles/\E} or + $filename=~m{^/*(uploaded|editupload)/}) { + return &repcopy_userfile($filename); + } + $filename=~s/[\n\r]//g; my $transname="$filename.in.transfer"; - if ((-e $filename) || (-e $transname)) { return OK; } +# FIXME: this should flock + if ((-e $filename) || (-e $transname)) { return 'ok'; } my $remoteurl=subscribe($filename); if ($remoteurl =~ /^con_lost by/) { &logthis("Subscribe returned $remoteurl: $filename"); - return HTTP_SERVICE_UNAVAILABLE; + return 'unavailable'; } elsif ($remoteurl eq 'not_found') { #&logthis("Subscribe returned not_found: $filename"); - return HTTP_NOT_FOUND; + return 'not_found'; } elsif ($remoteurl =~ /^rejected by/) { &logthis("Subscribe returned $remoteurl: $filename"); - return FORBIDDEN; + return 'forbidden'; } elsif ($remoteurl eq 'directory') { - return OK; + return 'ok'; } else { my $author=$filename; $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/; @@ -1082,9 +3389,9 @@ sub repcopy { unless ($home eq $perlvar{'lonHostID'}) { my @parts=split(/\//,$filename); my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]"; - if ($path ne "$perlvar{'lonDocRoot'}/res") { + if ($path ne "$londocroot/res") { &logthis("Malconfiguration for replication: $filename"); - return HTTP_BAD_REQUEST; + return 'bad_request'; } my $count; for ($count=5;$count<$#parts;$count++) { @@ -1093,132 +3400,907 @@ sub repcopy { mkdir($path,0777); } } - my $ua=new LWP::UserAgent; my $request=new HTTP::Request('GET',"$remoteurl"); - my $response=$ua->request($request,$transname); + my $response; + if ($remoteurl =~ m{/raw/}) { + $response=&LONCAPA::LWPReq::makerequest($home,$request,$transname,\%perlvar,'',0,1); + } else { + $response=&LONCAPA::LWPReq::makerequest($home,$request,$transname,\%perlvar,'',1); + } if ($response->is_error()) { unlink($transname); my $message=$response->status_line; - &logthis("WARNING:" + &logthis("WARNING:" ." LWP get: $message: $filename"); - return HTTP_SERVICE_UNAVAILABLE; + return 'unavailable'; } else { if ($remoteurl!~/\.meta$/) { my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta'); - my $mresponse=$ua->request($mrequest,$filename.'.meta'); + my $mresponse; + if ($remoteurl =~ m{/raw/}) { + $mresponse = &LONCAPA::LWPReq::makerequest($home,$mrequest,$filename.'.meta',\%perlvar,'',0,1); + } else { + $mresponse = &LONCAPA::LWPReq::makerequest($home,$mrequest,$filename.'.meta',\%perlvar,'',1); + } if ($mresponse->is_error()) { unlink($filename.'.meta'); &logthis( - "INFO: No metadata: $filename"); + "INFO: No metadata: $filename"); } } rename($transname,$filename); - return OK; + return 'ok'; } } } } +# ------------------------------------------------- Unsubscribe from a resource + +sub unsubscribe { + my ($fname) = @_; + my $answer; + if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return $answer; } + $fname=~s/[\n\r]//g; + my $author=$fname; + $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/; + my ($udom,$uname)=split(/\//,$author); + my $home=homeserver($uname,$udom); + if ($home eq 'no_host') { + $answer = 'no_host'; + } elsif (grep { $_ eq $home } ¤t_machine_ids()) { + $answer = 'home'; + } else { + my $defdom = $perlvar{'lonDefDomain'}; + if (&will_trust('content',$defdom,$udom)) { + $answer = reply("unsub:$fname",$home); + } else { + $answer = 'untrusted'; + } + } + return $answer; +} + # ------------------------------------------------ Get server side include body sub ssi_body { my ($filelink,%form)=@_; - my $output=($filelink=~/^http\:/?&externalssi($filelink): - &ssi($filelink,%form)); - $output=~s/^.*\]*\>//si; - $output=~s/\<\/body\s*\>.*$//si; - $output=~ - s/\/\/ BEGIN LON\-CAPA Internal.+\/\/ END LON\-CAPA Internal\s//gs; - return $output; + if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) { + $form{'LONCAPA_INTERNAL_no_discussion'}='true'; + } + my $output=''; + my $response; + if ($filelink=~/^https?\:/) { + ($output,$response)=&externalssi($filelink); + } else { + $filelink .= $filelink=~/\?/ ? '&' : '?'; + $filelink .= 'inhibitmenu=yes'; + ($output,$response)=&ssi($filelink,%form); + } + $output=~s|//(\s*)?\s||gs; + $output=~s/^.*?\]*\>//si; + $output=~s/\<\/body\s*\>.*?$//si; + if (wantarray) { + return ($output, $response); + } else { + return $output; + } } # --------------------------------------------------------- Server Side Include +sub absolute_url { + my ($host_name,$unalias,$keep_proto) = @_; + my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://'); + if ($host_name eq '') { + $host_name = $ENV{'SERVER_NAME'}; + } + if ($unalias) { + my $alias = &get_proxy_alias(); + if ($alias eq $host_name) { + my $lonhost = $perlvar{'lonHostID'}; + my $hostname = &hostname($lonhost); + my $lcproto; + if (($keep_proto) || ($hostname eq '')) { + $lcproto = $protocol; + } else { + $lcproto = $protocol{$lonhost}; + $lcproto = 'http' if ($lcproto ne 'https'); + $lcproto .= '://'; + } + unless ($hostname eq '') { + return $lcproto.$hostname; + } + } + } + return $protocol.$host_name; +} + +# +# Server side include. +# Parameters: +# fn Possibly encrypted resource name/id. +# form Hash that describes how the rendering should be done +# and other things. +# Returns: +# Scalar context: The content of the response. +# Array context: 2 element list of the content and the full response object. +# sub ssi { my ($fn,%form)=@_; + my ($host,$request,$response); + $host = &absolute_url('',1); - my $ua=new LWP::UserAgent; - - my $request; - + $form{'no_update_last_known'}=1; + &Apache::lonenc::check_encrypt(\$fn); if (%form) { - $request=new HTTP::Request('POST',"http://".$ENV{'HTTP_HOST'}.$fn); - $request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys %form)); + $request=new HTTP::Request('POST',$host.$fn); + $request->content(join('&',map { + my $name = escape($_); + "$name=" . ( ref($form{$_}) eq 'ARRAY' + ? join("&$name=", map {escape($_) } @{$form{$_}}) + : &escape($form{$_}) ); + } keys(%form))); } else { - $request=new HTTP::Request('GET',"http://".$ENV{'HTTP_HOST'}.$fn); + $request=new HTTP::Request('GET',$host.$fn); } $request->header(Cookie => $ENV{'HTTP_COOKIE'}); - my $response=$ua->request($request); + my $lonhost = $perlvar{'lonHostID'}; + my $islocal; + if (($env{'request.course.id'}) && + ($form{'grade_courseid'} eq $env{'request.course.id'}) && + ($form{'grade_username'} ne '') && ($form{'grade_domain'} ne '') && + ($form{'grade_symb'} ne '') && + (&Apache::lonnet::allowed('mgr',$env{'request.course.id'}. + ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) { + $islocal = 1; + } + $response= &LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar, + '','','',$islocal); - return $response->content; + if (wantarray) { + return ($response->content, $response); + } else { + return $response->content; + } } sub externalssi { my ($url)=@_; - my $ua=new LWP::UserAgent; my $request=new HTTP::Request('GET',$url); - my $response=$ua->request($request); - return $response->content; + my $response = &LONCAPA::LWPReq::makerequest('',$request,'',\%perlvar); + if (wantarray) { + return ($response->content, $response); + } else { + return $response->content; + } } -# ------- Add a token to a remote URI's query string to vouch for access rights -sub tokenwrapper { - my $uri=shift; - $uri=~s/^http\:\/\/([^\/]+)//; - $uri=~s/^\///; - $ENV{'user.environment'}=~/\/([^\/]+)\.id/; - my $token=$1; - if ($uri=~/^uploaded\/([^\/]+)\/([^\/]+)\/([^\/]+)(\?\.*)*$/) { - &appenv('userfile.'.$1.'/'.$2.'/'.$3 => $ENV{'request.course.id'}); - return 'http://'.$hostname{ &homeserver($2,$1)}.'/'.$uri. - (($uri=~/\?/)?'&':'?').'token='.$token. - '&tokenissued='.$perlvar{'lonHostID'}; +# If the local copy of a replicated resource is outdated, trigger a +# connection from the homeserver to flush the delayed queue. If no update +# happens, remove local copies of outdated resource (and corresponding +# metadata file). + +sub remove_stale_resfile { + my ($url) = @_; + my $removed; + if ($url=~m{^/res/($match_domain)/($match_username)/}) { + my $audom = $1; + my $auname = $2; + unless (($url =~ /\.\d+\.\w+$/) || ($url =~ m{^/res/lib/templates/})) { + my $homeserver = &homeserver($auname,$audom); + unless (($homeserver eq 'no_host') || + (grep { $_ eq $homeserver } ¤t_machine_ids())) { + my $fname = &filelocation('',$url); + if (-e $fname) { + my $hostname = &hostname($homeserver); + if ($hostname) { + my $protocol = $protocol{$homeserver}; + $protocol = 'http' if ($protocol ne 'https'); + my $uri = &declutter($url); + my $request=new HTTP::Request('HEAD',$protocol.'://'.$hostname.'/raw/'.$uri); + my $response = &LONCAPA::LWPReq::makerequest($homeserver,$request,'',\%perlvar,5,0,1); + if ($response->is_success()) { + my $remmodtime = &HTTP::Date::str2time( $response->header('Last-modified') ); + my $locmodtime = (stat($fname))[9]; + if ($locmodtime < $remmodtime) { + my $stale; + my $answer = &reply('pong',$homeserver); + if ($answer eq $homeserver.':'.$perlvar{'lonHostID'}) { + sleep(0.2); + $locmodtime = (stat($fname))[9]; + if ($locmodtime < $remmodtime) { + my $posstransfer = $fname.'.in.transfer'; + if ((-e $posstransfer) && ($remmodtime < (stat($posstransfer))[9])) { + $removed = 1; + } else { + $stale = 1; + } + } else { + $removed = 1; + } + } else { + $stale = 1; + } + if ($stale) { + if (unlink($fname)) { + if ($uri!~/\.meta$/) { + if (-e $fname.'.meta') { + unlink($fname.'.meta'); + } + } + my $unsubresult = &unsubscribe($fname); + unless ($unsubresult eq 'ok') { + &logthis("no unsub of $fname from $homeserver, reason: $unsubresult"); + } + $removed = 1; + } + } + } + } + } + } + } + } + } + return $removed; +} + +# -------------------------------- Allow a /uploaded/ URI to be vouched for + +sub allowuploaded { + my ($srcurl,$url)=@_; + $url=&clutter(&declutter($url)); + my $dir=$url; + $dir=~s/\/[^\/]+$//; + my %httpref=(); + my $httpurl=&hreflocation('',$url); + $httpref{'httpref.'.$httpurl}=$srcurl; + &Apache::lonnet::appenv(\%httpref); +} + +# +# Determine if the current user should be able to edit a particular resource, +# when viewing in course context. +# (a) When viewing resource used to determine if "Edit" item is included in +# Functions. +# (b) When displaying folder contents in course editor, used to determine if +# "Edit" link will be displayed alongside resource. +# +# input: six args -- filename (decluttered), course number, course domain, +# url, symb (if registered) and group (if this is a group +# item -- e.g., bulletin board, group page etc.). +# output: array of five scalars -- +# $cfile -- url for file editing if editable on current server +# $home -- homeserver of resource (i.e., for author if published, +# or course if uploaded.). +# $switchserver -- 1 if server switch will be needed. +# $forceedit -- 1 if icon/link should be to go to edit mode +# $forceview -- 1 if icon/link should be to go to view mode +# + +sub can_edit_resource { + my ($file,$cnum,$cdom,$resurl,$symb,$group) = @_; + my ($cfile,$home,$switchserver,$forceedit,$forceview,$uploaded,$incourse); +# +# For aboutme pages user can only edit his/her own. +# + if ($resurl =~ m{^/?adm/($match_domain)/($match_username)/aboutme$}) { + my ($sdom,$sname) = ($1,$2); + if (($sdom eq $env{'user.domain'}) && ($sname eq $env{'user.name'})) { + $home = $env{'user.home'}; + $cfile = $resurl; + if ($env{'form.forceedit'}) { + $forceview = 1; + } else { + $forceedit = 1; + } + return ($cfile,$home,$switchserver,$forceedit,$forceview); + } else { + return; + } + } + + if ($env{'request.course.id'}) { + my $crsedit = &Apache::lonnet::allowed('mdc',$env{'request.course.id'}); + if ($group ne '') { +# if this is a group homepage or group bulletin board, check group privs + my $allowed = 0; + if ($resurl =~ m{^/?adm/$cdom/$cnum/$group/smppg$}) { + if ((&allowed('mdg',$env{'request.course.id'}. + ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) || + (&allowed('mgh',$env{'request.course.id'}.'/'.$group)) || $crsedit) { + $allowed = 1; + } + } elsif ($resurl =~ m{^/?adm/$cdom/$cnum/\d+/bulletinboard$}) { + if ((&allowed('mdg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) || + (&allowed('cgb',$env{'request.course.id'}.'/'.$group)) || $crsedit) { + $allowed = 1; + } + } + if ($allowed) { + $home=&homeserver($cnum,$cdom); + if ($env{'form.forceedit'}) { + $forceview = 1; + } else { + $forceedit = 1; + } + $cfile = $resurl; + } else { + return; + } + } else { + if ($resurl =~ m{^/?adm/viewclasslist$}) { + unless (&Apache::lonnet::allowed('opa',$env{'request.course.id'})) { + return; + } + } elsif (!$crsedit) { +# +# No edit allowed where CC has switched to student role. +# + return; + } + } + } + + if ($file ne '') { + if (($cnum =~ /$match_courseid/) && ($cdom =~ /$match_domain/)) { + if (&is_course_upload($file,$cnum,$cdom)) { + $uploaded = 1; + $incourse = 1; + if ($file =~/\.(htm|html|css|js|txt)$/) { + $cfile = &hreflocation('',$file); + if ($env{'form.forceedit'}) { + $forceview = 1; + } else { + $forceedit = 1; + } + } + } elsif ($resurl =~ m{^/public/$cdom/$cnum/syllabus}) { + $incourse = 1; + if ($env{'form.forceedit'}) { + $forceview = 1; + } else { + $forceedit = 1; + } + $cfile = $resurl; + } elsif (($resurl ne '') && (&is_on_map($resurl))) { + if ($resurl =~ m{^/adm/$match_domain/$match_username/\d+/smppg|bulletinboard$}) { + $incourse = 1; + if ($env{'form.forceedit'}) { + $forceview = 1; + } else { + $forceedit = 1; + } + $cfile = $resurl; + } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem') { + $incourse = 1; + $cfile = $resurl.'/smpedit'; + } elsif ($resurl =~ m{^/adm/wrapper/ext/}) { + $incourse = 1; + if ($env{'form.forceedit'}) { + $forceview = 1; + } else { + $forceedit = 1; + } + $cfile = $resurl; + } elsif (($resurl =~ m{^/ext/}) && ($symb ne '')) { + my ($map,$id,$res) = &decode_symb($symb); + if ($map =~ /\.page$/) { + $incourse = 1; + if ($env{'form.forceedit'}) { + $forceview = 1; + $cfile = $map; + } else { + $forceedit = 1; + $cfile = '/adm/wrapper'.$resurl; + } + } + } elsif ($resurl =~ m{^/adm/wrapper/adm/$cdom/$cnum/\d+/ext\.tool$}) { + $incourse = 1; + if ($env{'form.forceedit'}) { + $forceview = 1; + } else { + $forceedit = 1; + } + $cfile = $resurl; + } elsif ($resurl =~ m{^/?adm/viewclasslist$}) { + $incourse = 1; + if ($env{'form.forceedit'}) { + $forceview = 1; + } else { + $forceedit = 1; + } + $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl"); + } + } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem/smpedit') { + my $template = '/res/lib/templates/simpleproblem.problem'; + if (&is_on_map($template)) { + $incourse = 1; + $forceview = 1; + $cfile = $template; + } + } elsif (($resurl =~ m{^/adm/wrapper/ext/}) && ($env{'form.folderpath'} =~ /^supplemental/)) { + $incourse = 1; + if ($env{'form.forceedit'}) { + $forceview = 1; + } else { + $forceedit = 1; + } + $cfile = $resurl; + } elsif (($resurl =~ m{^/adm/wrapper/adm/$cdom/$cnum/\d+/ext\.tool$}) && ($env{'form.folderpath'} =~ /^supplemental/)) { + $incourse = 1; + if ($env{'form.forceedit'}) { + $forceview = 1; + } else { + $forceedit = 1; + } + $cfile = $resurl; + } elsif (($resurl eq '/adm/extresedit') && ($symb || $env{'form.folderpath'})) { + $incourse = 1; + $forceview = 1; + if ($symb) { + my ($map,$id,$res)=&decode_symb($symb); + $env{'request.symb'} = $symb; + $cfile = &clutter($res); + } else { + $cfile = $env{'form.suppurl'}; + my $escfile = &unescape($cfile); + if ($escfile =~ m{^/adm/$cdom/$cnum/\d+/ext\.tool$}) { + $cfile = '/adm/wrapper'.$escfile; + } else { + $escfile =~ s{^http://}{}; + $cfile = &escape("/adm/wrapper/ext/$escfile"); + } + } + } elsif ($resurl =~ m{^/?adm/viewclasslist$}) { + if ($env{'form.forceedit'}) { + $forceview = 1; + } else { + $forceedit = 1; + } + $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl"); + } + } + if ($uploaded || $incourse) { + $home=&homeserver($cnum,$cdom); + } elsif ($file !~ m{/$}) { + $file=~s{^(priv/$match_domain/$match_username)}{/$1}; + $file=~s{^($match_domain/$match_username)}{/priv/$1}; + # Check that the user has permission to edit this resource + my $setpriv = 1; + my ($cfuname,$cfudom)=&constructaccess($file,$setpriv); + if (defined($cfudom)) { + $home=&homeserver($cfuname,$cfudom); + $cfile=$file; + } + } + if (($cfile ne '') && (!$incourse || $uploaded) && + (($home ne '') && ($home ne 'no_host'))) { + my @ids=¤t_machine_ids(); + unless (grep(/^\Q$home\E$/,@ids)) { + $switchserver=1; + } + } + } + return ($cfile,$home,$switchserver,$forceedit,$forceview); +} + +sub is_course_upload { + my ($file,$cnum,$cdom) = @_; + my $uploadpath = &LONCAPA::propath($cdom,$cnum); + $uploadpath =~ s{^\/}{}; + if (($file =~ m{^\Q$uploadpath\E/userfiles/(docs|supplemental)/}) || + ($file =~ m{^userfiles/\Q$cdom\E/\Q$cnum\E/(docs|supplemental)/})) { + return 1; + } + return; +} + +sub in_course { + my ($udom,$uname,$cdom,$cnum,$type,$hideprivileged) = @_; + if ($hideprivileged) { + my $skipuser; + my %coursehash = &coursedescription($cdom.'_'.$cnum); + my @possdoms = ($cdom); + if ($coursehash{'checkforpriv'}) { + push(@possdoms,split(/,/,$coursehash{'checkforpriv'})); + } + if (&privileged($uname,$udom,\@possdoms)) { + $skipuser = 1; + if ($coursehash{'nothideprivileged'}) { + foreach my $item (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) { + my $user; + if ($item =~ /:/) { + $user = $item; + } else { + $user = join(':',split(/[\@]/,$item)); + } + if ($user eq $uname.':'.$udom) { + undef($skipuser); + last; + } + } + } + if ($skipuser) { + return 0; + } + } + } + $type ||= 'any'; + if (!defined($cdom) || !defined($cnum)) { + my $cid = $env{'request.course.id'}; + $cdom = $env{'course.'.$cid.'.domain'}; + $cnum = $env{'course.'.$cid.'.num'}; + } + my $typesref; + if (($type eq 'any') || ($type eq 'all')) { + $typesref = ['active','previous','future']; + } elsif ($type eq 'previous' || $type eq 'future') { + $typesref = [$type]; + } + my %roles = &get_my_roles($uname,$udom,'userroles', + $typesref,undef,[$cdom]); + my ($tmp) = keys(%roles); + return 0 if ($tmp =~ /^(con_lost|error|no_such_host)/i); + my @course_roles = grep(/^\Q$cnum\E:\Q$cdom\E:/, keys(%roles)); + if (@course_roles > 0) { + return 1; + } + return 0; +} + +# --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course +# input: action, courseID, current domain, intended +# path to file, source of file, instruction to parse file for objects, +# ref to hash for embedded objects, +# ref to hash for codebase of java objects. +# reference to scalar to accommodate mime type determined +# from File::MMagic if $parser = parse. +# +# output: url to file (if action was uploaddoc), +# ok if successful, or diagnostic message otherwise (if action was propagate or copy) +# +# Allows directory structure to be used within lonUsers/../userfiles/ for a +# course. +# +# action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file +# will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in +# course's home server. +# +# action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will +# be copied from $source (current location) to +# /home/httpd/html/userfiles/$domain/1/2/3/$course/$file +# and will then be copied to +# /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in +# course's home server. +# +# action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file +# will be retrived from $env{form.uploaddoc} (from DOCS interface) to +# /home/httpd/html/userfiles/$domain/1/2/3/$course/$file +# and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file +# in course's home server. +# + +sub process_coursefile { + my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase, + $mimetype)=@_; + my $fetchresult; + my $home=&homeserver($docuname,$docudom); + if ($action eq 'propagate') { + $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file, + $home); + } else { + my $fpath = ''; + my $fname = $file; + ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|); + $fpath=$docudom.'/'.$docuname.'/'.$fpath; + my $filepath = &build_filepath($fpath); + if ($action eq 'copy') { + if ($source eq '') { + $fetchresult = 'no source file'; + return $fetchresult; + } else { + my $destination = $filepath.'/'.$fname; + rename($source,$destination); + $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file, + $home); + } + } elsif ($action eq 'uploaddoc') { + open(my $fh,'>',$filepath.'/'.$fname); + print $fh $env{'form.'.$source}; + close($fh); + if ($parser eq 'parse') { + my $mm = new File::MMagic; + my $type = $mm->checktype_filename($filepath.'/'.$fname); + if ($type eq 'text/html') { + my $parse_result = &extract_embedded_items($filepath.'/'.$fname,$allfiles,$codebase); + unless ($parse_result eq 'ok') { + &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result); + } + } + if (ref($mimetype)) { + $$mimetype = $type; + } + } + $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file, + $home); + if ($fetchresult eq 'ok') { + return '/uploaded/'.$fpath.'/'.$fname; + } else { + &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file. + ' to host '.$home.': '.$fetchresult); + return '/adm/notfound.html'; + } + } + } + unless ( $fetchresult eq 'ok') { + &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file. + ' to host '.$home.': '.$fetchresult); + } + return $fetchresult; +} + +sub build_filepath { + my ($fpath) = @_; + my $filepath=$perlvar{'lonDocRoot'}.'/userfiles'; + unless ($fpath eq '') { + my @parts=split('/',$fpath); + foreach my $part (@parts) { + $filepath.= '/'.$part; + if ((-e $filepath)!=1) { + mkdir($filepath,0777); + } + } + } + return $filepath; +} + +sub store_edited_file { + my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_; + my $file = $primary_url; + $file =~ s#^/uploaded/$docudom/$docuname/##; + my $fpath = ''; + my $fname = $file; + ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|); + $fpath=$docudom.'/'.$docuname.'/'.$fpath; + my $filepath = &build_filepath($fpath); + open(my $fh,'>',$filepath.'/'.$fname); + print $fh $content; + close($fh); + my $home=&homeserver($docuname,$docudom); + $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file, + $home); + if ($$fetchresult eq 'ok') { + return '/uploaded/'.$fpath.'/'.$fname; } else { - return '/adm/notfound.html'; + &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file. + ' to host '.$home.': '.$$fetchresult); + return '/adm/notfound.html'; } } - -# --------------- Take an uploaded file and put it into the userfiles directory -# input: name of form element, coursedoc=1 means this is for the course -# output: url of file in userspace -sub userfileupload { - my ($formname,$coursedoc)=@_; - my $fname=$ENV{'form.'.$formname.'.filename'}; +sub clean_filename { + my ($fname,$args)=@_; # Replace Windows backslashes by forward slashes $fname=~s/\\/\//g; -# Get rid of everything but the actual filename - $fname=~s/^.*\/([^\/]+)$/$1/; + if (!$args->{'keep_path'}) { + # Get rid of everything but the actual filename + $fname=~s/^.*\/([^\/]+)$/$1/; + } # Replace spaces by underscores $fname=~s/\s+/\_/g; +# Transliterate non-ascii text to ascii + my $lang = &Apache::lonlocal::current_language(); + $fname = &LONCAPA::transliterate::fname_to_ascii($fname,$lang); # Replace all other weird characters by nothing - $fname=~s/[^\w\.\-]//g; -# See if there is anything left + $fname=~s{[^/\w\.\-]}{}g; +# Replace all .\d. sequences with _\d. so they no longer look like version +# numbers + $fname=~s/\.(\d+)(?=\.)/_$1/g; +# Replace three or more adjacent underscores with one for consistency +# with loncfile::filename_check() so complete url can be extracted by +# lonnet::decode_symb() + $fname=~s/_{3,}/_/g; + return $fname; +} + +# This Function checks if an Image's dimensions exceed either $resizewidth (width) +# or $resizeheight (height) - both pixels. If so, the image is scaled to produce an +# image with the same aspect ratio as the original, but with dimensions which do +# not exceed $resizewidth and $resizeheight. + +sub resizeImage { + my ($img_path,$resizewidth,$resizeheight) = @_; + my $ima = Image::Magick->new; + my $resized; + if (-e $img_path) { + $ima->Read($img_path); + if (($resizewidth =~ /^\d+$/) && ($resizeheight > 0)) { + my $width = $ima->Get('width'); + my $height = $ima->Get('height'); + if ($width > $resizewidth) { + my $factor = $width/$resizewidth; + my $newheight = $height/$factor; + $ima->Scale(width=>$resizewidth,height=>$newheight); + $resized = 1; + } + } + if (($resizeheight =~ /^\d+$/) && ($resizeheight > 0)) { + my $width = $ima->Get('width'); + my $height = $ima->Get('height'); + if ($height > $resizeheight) { + my $factor = $height/$resizeheight; + my $newwidth = $width/$factor; + $ima->Scale(width=>$newwidth,height=>$resizeheight); + $resized = 1; + } + } + if ($resized) { + $ima->Write($img_path); + } + } + return; +} + +# --------------- Take an uploaded file and put it into the userfiles directory +# input: $formname - the contents of the file are in $env{"form.$formname"} +# the desired filename is in $env{"form.$formname.filename"} +# $context - possible values: coursedoc, existingfile, overwrite, +# canceloverwrite, scantron or ''. +# if 'coursedoc': upload to the current course +# if 'existingfile': write file to tmp/overwrites directory +# if 'canceloverwrite': delete file written to tmp/overwrites directory +# $context is passed as argument to &finishuserfileupload +# $subdir - directory in userfile to store the file into +# $parser - instruction to parse file for objects ($parser = parse) or +# if context is 'scantron', $parser is hashref of csv column mapping +# (e.g.,{ PaperID => 0, LastName => 1, FirstName => 2, ID => 3, +# Section => 4, CODE => 5, FirstQuestion => 9 }). +# $allfiles - reference to hash for embedded objects +# $codebase - reference to hash for codebase of java objects +# $desuname - username for permanent storage of uploaded file +# $dsetudom - domain for permanaent storage of uploaded file +# $thumbwidth - width (pixels) of thumbnail to make for uploaded image +# $thumbheight - height (pixels) of thumbnail to make for uploaded image +# $resizewidth - width (pixels) to which to resize uploaded image +# $resizeheight - height (pixels) to which to resize uploaded image +# $mimetype - reference to scalar to accommodate mime type determined +# from File::MMagic. +# +# output: url of file in userspace, or error: +# or /adm/notfound.html if failure to upload occurse + +sub userfileupload { + my ($formname,$context,$subdir,$parser,$allfiles,$codebase,$destuname, + $destudom,$thumbwidth,$thumbheight,$resizewidth,$resizeheight,$mimetype)=@_; + if (!defined($subdir)) { $subdir='unknown'; } + my $fname=$env{'form.'.$formname.'.filename'}; + $fname=&clean_filename($fname); + # See if there is anything left unless ($fname) { return 'error: no uploaded file'; } - chop($ENV{'form.'.$formname}); -# Create the directory if not present - my $docuname=''; - my $docudom=''; - my $docuhome=''; - if ($coursedoc) { - $docuname=$ENV{'course.'.$ENV{'request.course.id'}.'.num'}; - $docudom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}; - $docuhome=$ENV{'course.'.$ENV{'request.course.id'}.'.home'}; - } else { - $docuname=$ENV{'user.name'}; - $docudom=$ENV{'user.domain'}; - $docuhome=$ENV{'user.home'}; + # If filename now begins with a . prepend unix timestamp _ milliseconds + if ($fname =~ /^\./) { + my ($s,$usec) = &gettimeofday(); + while (length($usec) < 6) { + $usec = '0'.$usec; + } + $fname = $s.'_'.substr($usec,0,3).$fname; + } + # Files uploaded to help request form, or uploaded to "create course" page are handled differently + if ((($formname eq 'screenshot') && ($subdir eq 'helprequests')) || + (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) || + ($context eq 'existingfile') || ($context eq 'canceloverwrite')) { + my $now = time; + my $filepath; + if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) { + $filepath = 'tmp/helprequests/'.$now; + } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) { + $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}. + '_'.$env{'user.domain'}.'/pending'; + } elsif (($context eq 'existingfile') || ($context eq 'canceloverwrite')) { + my ($docuname,$docudom); + if ($destudom =~ /^$match_domain$/) { + $docudom = $destudom; + } else { + $docudom = $env{'user.domain'}; + } + if ($destuname =~ /^$match_username$/) { + $docuname = $destuname; + } else { + $docuname = $env{'user.name'}; + } + if (exists($env{'form.group'})) { + $docuname=$env{'course.'.$env{'request.course.id'}.'.num'}; + $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'}; + } + $filepath = 'tmp/overwrites/'.$docudom.'/'.$docuname.'/'.$subdir; + if ($context eq 'canceloverwrite') { + my $tempfile = $perlvar{'lonDaemons'}.'/'.$filepath.'/'.$fname; + if (-e $tempfile) { + my @info = stat($tempfile); + if ($info[9] eq $env{'form.timestamp'}) { + unlink($tempfile); + } + } + return; + } + } + # Create the directory if not present + my @parts=split(/\//,$filepath); + my $fullpath = $perlvar{'lonDaemons'}; + for (my $i=0;$i<@parts;$i++) { + $fullpath .= '/'.$parts[$i]; + if ((-e $fullpath)!=1) { + mkdir($fullpath,0777); + } + } + open(my $fh,'>',$fullpath.'/'.$fname); + print $fh $env{'form.'.$formname}; + close($fh); + if ($context eq 'existingfile') { + my @info = stat($fullpath.'/'.$fname); + return ($fullpath.'/'.$fname,$info[9]); + } else { + return $fullpath.'/'.$fname; + } + } + if ($subdir eq 'scantron') { + $fname = 'scantron_orig_'.$fname; + } else { + $fname="$subdir/$fname"; + } + if ($context eq 'coursedoc') { + my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'}; + my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'}; + if ($env{'form.folder'} =~ m/^(default|supplemental)/) { + return &finishuserfileupload($docuname,$docudom, + $formname,$fname,$parser,$allfiles, + $codebase,$thumbwidth,$thumbheight, + $resizewidth,$resizeheight,$context,$mimetype); + } else { + if ($env{'form.folder'}) { + $fname=$env{'form.folder'}.'/'.$fname; + } + return &process_coursefile('uploaddoc',$docuname,$docudom, + $fname,$formname,$parser, + $allfiles,$codebase,$mimetype); + } + } elsif (defined($destuname)) { + my $docuname=$destuname; + my $docudom=$destudom; + return &finishuserfileupload($docuname,$docudom,$formname,$fname, + $parser,$allfiles,$codebase, + $thumbwidth,$thumbheight, + $resizewidth,$resizeheight,$context,$mimetype); + } else { + my $docuname=$env{'user.name'}; + my $docudom=$env{'user.domain'}; + if ((exists($env{'form.group'})) || ($context eq 'syllabus')) { + $docuname=$env{'course.'.$env{'request.course.id'}.'.num'}; + $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'}; + } + return &finishuserfileupload($docuname,$docudom,$formname,$fname, + $parser,$allfiles,$codebase, + $thumbwidth,$thumbheight, + $resizewidth,$resizeheight,$context,$mimetype); } - return - &finishuserfileupload($docuname,$docudom,$docuhome,$formname,$fname); } sub finishuserfileupload { - my ($docuname,$docudom,$docuhome,$formname,$fname)=@_; + my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase, + $thumbwidth,$thumbheight,$resizewidth,$resizeheight,$context,$mimetype) = @_; my $path=$docudom.'/'.$docuname.'/'; my $filepath=$perlvar{'lonDocRoot'}; + + my ($fnamepath,$file,$fetchthumb); + $file=$fname; + if ($fname=~m|/|) { + ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|); + $path.=$fnamepath.'/'; + } my @parts=split(/\//,$filepath.'/userfiles/'.$path); my $count; for ($count=4;$count<=$#parts;$count++) { @@ -1227,25 +4309,596 @@ sub finishuserfileupload { mkdir($filepath,0777); } } + # Save the file { - my $fh=Apache::File->new('>'.$filepath.'/'.$fname); - print $fh $ENV{'form.'.$formname}; + if (!open(FH,'>',$filepath.'/'.$file)) { + &logthis('Failed to create '.$filepath.'/'.$file); + print STDERR ('Failed to create '.$filepath.'/'.$file."\n"); + return '/adm/notfound.html'; + } + if ($context eq 'overwrite') { + my $source = LONCAPA::tempdir().'/overwrites/'.$docudom.'/'.$docuname.'/'.$fname; + my $target = $filepath.'/'.$file; + if (-e $source) { + my @info = stat($source); + if ($info[9] eq $env{'form.timestamp'}) { + unless (&File::Copy::move($source,$target)) { + &logthis('Failed to overwrite '.$filepath.'/'.$file); + return "Moving from $source failed"; + } + } else { + return "Temporary file: $source had unexpected date/time for last modification"; + } + } else { + return "Temporary file: $source missing"; + } + } elsif (!print FH ($env{'form.'.$formname})) { + &logthis('Failed to write to '.$filepath.'/'.$file); + print STDERR ('Failed to write to '.$filepath.'/'.$file."\n"); + return '/adm/notfound.html'; + } + close(FH); + if ($resizewidth && $resizeheight) { + my $mm = new File::MMagic; + my $mime_type = $mm->checktype_filename($filepath.'/'.$file); + if ($mime_type =~ m{^image/}) { + &resizeImage($filepath.'/'.$file,$resizewidth,$resizeheight); + } + } + } + if (($context eq 'coursedoc') || ($parser eq 'parse')) { + if (ref($mimetype)) { + if ($$mimetype eq '') { + my $mm = new File::MMagic; + my $type = $mm->checktype_filename($filepath.'/'.$file); + $$mimetype = $type; + } + } } + if (($context ne 'scantron') && ($parser eq 'parse')) { + if ((ref($mimetype)) && ($$mimetype eq 'text/html')) { + my $parse_result = &extract_embedded_items($filepath.'/'.$file, + $allfiles,$codebase); + unless ($parse_result eq 'ok') { + &logthis('Failed to parse '.$filepath.$file. + ' for embedded media: '.$parse_result); + } + } + } elsif (($context eq 'scantron') && (ref($parser) eq 'HASH')) { + my $format = $env{'form.scantron_format'}; + &bubblesheet_converter($docudom,$filepath.'/'.$file,$parser,$format); + } + if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) { + my $input = $filepath.'/'.$file; + my $output = $filepath.'/'.'tn-'.$file; + my $thumbsize = $thumbwidth.'x'.$thumbheight; + my @args = ('convert','-sample',$thumbsize,$input,$output); + system({$args[0]} @args); + if (-e $filepath.'/'.'tn-'.$file) { + $fetchthumb = 1; + } + } + # Notify homeserver to grep it # - - my $fetchresult= - &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$fname,$docuhome); + my $docuhome=&homeserver($docuname,$docudom); + my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome); if ($fetchresult eq 'ok') { + if ($fetchthumb) { + my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome); + if ($thumbresult ne 'ok') { + &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '. + $docuhome.': '.$thumbresult); + } + } # # Return the URL to it - return '/uploaded/'.$path.$fname; + return '/uploaded/'.$path.$file; } else { - &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$fname. - ' to host '.$docuhome.': '.$fetchresult); + &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome. + ': '.$fetchresult); return '/adm/notfound.html'; - } + } +} + +sub extract_embedded_items { + my ($fullpath,$allfiles,$codebase,$content) = @_; + my @state = (); + my (%lastids,%related,%shockwave,%flashvars); + my %javafiles = ( + codebase => '', + code => '', + archive => '' + ); + my %mediafiles = ( + src => '', + movie => '', + ); + my $p; + if ($content) { + $p = HTML::LCParser->new($content); + } else { + $p = HTML::LCParser->new($fullpath); + } + while (my $t=$p->get_token()) { + if ($t->[0] eq 'S') { + my ($tagname, $attr) = ($t->[1],$t->[2]); + push(@state, $tagname); + if (lc($tagname) eq 'allow') { + &add_filetype($allfiles,$attr->{'src'},'src'); + } + if (lc($tagname) eq 'img') { + &add_filetype($allfiles,$attr->{'src'},'src'); + } + if (lc($tagname) eq 'a') { + unless (($attr->{'href'} =~ /^#/) || ($attr->{'href'} eq '')) { + &add_filetype($allfiles,$attr->{'href'},'href'); + } + } + if (lc($tagname) eq 'script') { + my $src; + if ($attr->{'archive'} =~ /\.jar$/i) { + &add_filetype($allfiles,$attr->{'archive'},'archive'); + } else { + if ($attr->{'src'} ne '') { + $src = $attr->{'src'}; + &add_filetype($allfiles,$src,'src'); + } + } + my $text = $p->get_trimmed_text(); + if ($text =~ /\Qswfobject.registerObject(\E([^\)]+)\)/) { + my @swfargs = split(/,/,$1); + foreach my $item (@swfargs) { + $item =~ s/["']//g; + $item =~ s/^\s+//; + $item =~ s/\s+$//; + } + if (($swfargs[0] ne'') && ($swfargs[2] ne '')) { + if (ref($related{$swfargs[0]}) eq 'ARRAY') { + push(@{$related{$swfargs[0]}},$swfargs[2]); + } else { + $related{$swfargs[0]} = [$swfargs[2]]; + } + } + } + } + if (lc($tagname) eq 'link') { + if (lc($attr->{'rel'}) eq 'stylesheet') { + &add_filetype($allfiles,$attr->{'href'},'href'); + } + } + if (lc($tagname) eq 'object' || + (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) { + foreach my $item (keys(%javafiles)) { + $javafiles{$item} = ''; + } + if ((lc($tagname) eq 'object') && (lc($state[-2]) ne 'object')) { + $lastids{lc($tagname)} = $attr->{'id'}; + } + } + if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') { + my $name = lc($attr->{'name'}); + foreach my $item (keys(%javafiles)) { + if ($name eq $item) { + $javafiles{$item} = $attr->{'value'}; + last; + } + } + my $pathfrom; + foreach my $item (keys(%mediafiles)) { + if ($name eq $item) { + $pathfrom = $attr->{'value'}; + $shockwave{$lastids{lc($state[-2])}} = $pathfrom; + &add_filetype($allfiles,$pathfrom,$name); + last; + } + } + if ($name eq 'flashvars') { + $flashvars{$lastids{lc($state[-2])}} = $attr->{'value'}; + } + if ($pathfrom ne '') { + &embedded_dependency($allfiles,\%related,$lastids{lc($state[-2])}, + $pathfrom); + } + } + if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') { + foreach my $item (keys(%javafiles)) { + if ($attr->{$item}) { + $javafiles{$item} = $attr->{$item}; + last; + } + } + foreach my $item (keys(%mediafiles)) { + if ($attr->{$item}) { + &add_filetype($allfiles,$attr->{$item},$item); + last; + } + } + if (lc($tagname) eq 'embed') { + if (($attr->{'name'} ne '') && ($attr->{'src'} ne '')) { + &embedded_dependency($allfiles,\%related,$attr->{'name'}, + $attr->{'src'}); + } + } + } + if (lc($tagname) eq 'iframe') { + my $src = $attr->{'src'} ; + if (($src ne '') && ($src !~ m{^(/|https?://)})) { + &add_filetype($allfiles,$src,'src'); + } elsif ($src =~ m{^/}) { + if ($env{'request.course.id'}) { + my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + my $url = &hreflocation('',$fullpath); + if ($url =~ m{^/uploaded/$cdom/$cnum/docs/(\w+/\d+)/}) { + my $relpath = $1; + if ($src =~ m{^/uploaded/$cdom/$cnum/docs/\Q$relpath\E/(.+)$}) { + &add_filetype($allfiles,$1,'src'); + } + } + } + } + } + if ($t->[4] =~ m{/>$}) { + pop(@state); + } + } elsif ($t->[0] eq 'E') { + my ($tagname) = ($t->[1]); + if ($javafiles{'codebase'} ne '') { + $javafiles{'codebase'} .= '/'; + } + if (lc($tagname) eq 'applet' || + lc($tagname) eq 'object' || + (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object') + ) { + foreach my $item (keys(%javafiles)) { + if ($item ne 'codebase' && $javafiles{$item} ne '') { + my $file=$javafiles{'codebase'}.$javafiles{$item}; + &add_filetype($allfiles,$file,$item); + } + } + } + pop @state; + } + } + foreach my $id (sort(keys(%flashvars))) { + if ($shockwave{$id} ne '') { + my @pairs = split(/\&/,$flashvars{$id}); + foreach my $pair (@pairs) { + my ($key,$value) = split(/\=/,$pair); + if ($key eq 'thumb') { + &add_filetype($allfiles,$value,$key); + } elsif ($key eq 'content') { + my ($path) = ($shockwave{$id} =~ m{^(.+/)[^/]+$}); + my ($ext) = ($value =~ /\.([^.]+)$/); + if ($ext ne '') { + &add_filetype($allfiles,$path.$value,$ext); + } + } + } + } + } + return 'ok'; +} + +sub add_filetype { + my ($allfiles,$file,$type)=@_; + if (exists($allfiles->{$file})) { + unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) { + push(@{$allfiles->{$file}}, &escape($type)); + } + } else { + @{$allfiles->{$file}} = (&escape($type)); + } +} + +sub embedded_dependency { + my ($allfiles,$related,$identifier,$pathfrom) = @_; + if ((ref($allfiles) eq 'HASH') && (ref($related) eq 'HASH')) { + if (($identifier ne '') && + (ref($related->{$identifier}) eq 'ARRAY') && + ($pathfrom ne '')) { + my ($path) = ($pathfrom =~ m{^(.+/)[^/]+$}); + foreach my $dep (@{$related->{$identifier}}) { + &add_filetype($allfiles,$path.$dep,'object'); + } + } + } + return; +} + +sub bubblesheet_converter { + my ($cdom,$fullpath,$config,$format) = @_; + if ((&domain($cdom) ne '') && + ($fullpath =~ m{^\Q$perlvar{'lonDocRoot'}/userfiles/$cdom/\E$match_courseid/scantron_orig}) && + (-e $fullpath) && (ref($config) eq 'HASH') && ($format ne '')) { + my (%csvcols,%csvoptions); + if (ref($config->{'fields'}) eq 'HASH') { + %csvcols = %{$config->{'fields'}}; + } + if (ref($config->{'options'}) eq 'HASH') { + %csvoptions = %{$config->{'options'}}; + } + my %csvbynum = reverse(%csvcols); + my %scantronconf = &get_scantron_config($format,$cdom); + if (keys(%scantronconf)) { + my %bynum = ( + $scantronconf{CODEstart} => 'CODEstart', + $scantronconf{IDstart} => 'IDstart', + $scantronconf{PaperID} => 'PaperID', + $scantronconf{FirstName} => 'FirstName', + $scantronconf{LastName} => 'LastName', + $scantronconf{Qstart} => 'Qstart', + ); + my @ordered; + foreach my $item (sort { $a <=> $b } keys(%bynum)) { + push(@ordered,$bynum{$item}); + } + my %mapstart = ( + CODEstart => 'CODE', + IDstart => 'ID', + PaperID => 'PaperID', + FirstName => 'FirstName', + LastName => 'LastName', + Qstart => 'FirstQuestion', + ); + my %maplength = ( + CODEstart => 'CODElength', + IDstart => 'IDlength', + PaperID => 'PaperIDlength', + FirstName => 'FirstNamelength', + LastName => 'LastNamelength', + ); + if (open(my $fh,'<',$fullpath)) { + my $output; + my %lettdig = &letter_to_digits(); + my %diglett = reverse(%lettdig); + my $numletts = scalar(keys(%lettdig)); + my $num = 0; + while (my $line=<$fh>) { + $num ++; + next if (($num == 1) && ($csvoptions{'hdr'} == 1)); + $line =~ s{[\r\n]+$}{}; + my %found; + my @values = split(/,/,$line); + my ($qstart,$record); + for (my $i=0; $i<@values; $i++) { + if ((($qstart ne '') && ($i > $qstart)) || + ($csvbynum{$i} eq 'FirstQuestion')) { + if ($values[$i] eq '') { + $values[$i] = $scantronconf{'Qoff'}; + } elsif ($scantronconf{'Qon'} eq 'number') { + if ($values[$i] =~ /^[A-Ja-j]$/) { + $values[$i] = $lettdig{uc($values[$i])}; + } + } elsif ($scantronconf{'Qon'} eq 'letter') { + if ($values[$i] =~ /^[0-9]$/) { + $values[$i] = $diglett{$values[$i]}; + } + } else { + if ($values[$i] =~ /^[0-9A-Ja-j]$/) { + my $digit; + if ($values[$i] =~ /^[A-Ja-j]$/) { + $digit = $lettdig{uc($values[$i])}-1; + if ($values[$i] eq 'J') { + $digit += $numletts; + } + } elsif ($values[$i] =~ /^[0-9]$/) { + $digit = $values[$i]-1; + if ($values[$i] eq '0') { + $digit += $numletts; + } + } + my $qval=''; + for (my $j=0; $j<$scantronconf{'Qlength'}; $j++) { + if ($j == $digit) { + $qval .= $scantronconf{'Qon'}; + } else { + $qval .= $scantronconf{'Qoff'}; + } + } + $values[$i] = $qval; + } + } + if (length($values[$i]) > $scantronconf{'Qlength'}) { + $values[$i] = substr($values[$i],0,$scantronconf{'Qlength'}); + } + my $numblank = $scantronconf{'Qlength'} - length($values[$i]); + if ($numblank > 0) { + $values[$i] .= ($scantronconf{'Qoff'} x $numblank); + } + if ($csvbynum{$i} eq 'FirstQuestion') { + $qstart = $i; + $found{$csvbynum{$i}} = $values[$i]; + } else { + $found{'FirstQuestion'} .= $values[$i]; + } + } elsif (exists($csvbynum{$i})) { + if ($csvoptions{'rem'}) { + $values[$i] =~ s/^\s+//; + } + if (($csvbynum{$i} eq 'PaperID') && ($csvoptions{'pad'})) { + while (length($values[$i]) < $scantronconf{$maplength{$csvbynum{$i}}}) { + $values[$i] = '0'.$values[$i]; + } + } + $found{$csvbynum{$i}} = $values[$i]; + } + } + foreach my $item (@ordered) { + my $currlength = 1+length($record); + my $numspaces = $scantronconf{$item} - $currlength; + if ($numspaces > 0) { + $record .= (' ' x $numspaces); + } + if (($mapstart{$item} ne '') && (exists($found{$mapstart{$item}}))) { + unless ($item eq 'Qstart') { + if (length($found{$mapstart{$item}}) > $scantronconf{$maplength{$item}}) { + $found{$mapstart{$item}} = substr($found{$mapstart{$item}},0,$scantronconf{$maplength{$item}}); + } + } + $record .= $found{$mapstart{$item}}; + } + } + $output .= "$record\n"; + } + close($fh); + if ($output) { + if (open(my $fh,'>',$fullpath)) { + print $fh $output; + close($fh); + } + } + } + } + return; + } +} + +sub letter_to_digits { + my %lettdig = ( + A => 1, + B => 2, + C => 3, + D => 4, + E => 5, + F => 6, + G => 7, + H => 8, + I => 9, + J => 0, + ); + return %lettdig; +} + +sub get_scantron_config { + my ($which,$cdom) = @_; + my @lines = &get_scantronformat_file($cdom); + my %config; + #FIXME probably should move to XML it has already gotten a bit much now + foreach my $line (@lines) { + my ($name,$descrip)=split(/:/,$line); + if ($name ne $which ) { next; } + chomp($line); + my @config=split(/:/,$line); + $config{'name'}=$config[0]; + $config{'description'}=$config[1]; + $config{'CODElocation'}=$config[2]; + $config{'CODEstart'}=$config[3]; + $config{'CODElength'}=$config[4]; + $config{'IDstart'}=$config[5]; + $config{'IDlength'}=$config[6]; + $config{'Qstart'}=$config[7]; + $config{'Qlength'}=$config[8]; + $config{'Qoff'}=$config[9]; + $config{'Qon'}=$config[10]; + $config{'PaperID'}=$config[11]; + $config{'PaperIDlength'}=$config[12]; + $config{'FirstName'}=$config[13]; + $config{'FirstNamelength'}=$config[14]; + $config{'LastName'}=$config[15]; + $config{'LastNamelength'}=$config[16]; + $config{'BubblesPerRow'}=$config[17]; + last; + } + return %config; +} + +sub get_scantronformat_file { + my ($cdom) = @_; + if ($cdom eq '') { + $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'}; + } + my %domconfig = &get_dom('configuration',['scantron'],$cdom); + my $gottab = 0; + my @lines; + if (ref($domconfig{'scantron'}) eq 'HASH') { + if ($domconfig{'scantron'}{'scantronformat'} ne '') { + my $formatfile = &getfile($perlvar{'lonDocRoot'}.$domconfig{'scantron'}{'scantronformat'}); + if ($formatfile ne '-1') { + @lines = split("\n",$formatfile,-1); + $gottab = 1; + } + } + } + if (!$gottab) { + my $confname = $cdom.'-domainconfig'; + my $default = $perlvar{'lonDocRoot'}.'/res/'.$cdom.'/'.$confname.'/default.tab'; + my $formatfile = &getfile($default); + if ($formatfile ne '-1') { + @lines = split("\n",$formatfile,-1); + $gottab = 1; + } + } + if (!$gottab) { + my @domains = ¤t_machine_domains(); + if (grep(/^\Q$cdom\E$/,@domains)) { + if (open(my $fh,'<',$perlvar{'lonTabDir'}.'/scantronformat.tab')) { + @lines = <$fh>; + close($fh); + } + } else { + if (open(my $fh,'<',$perlvar{'lonTabDir'}.'/default_scantronformat.tab')) { + @lines = <$fh>; + close($fh); + } + } + } + return @lines; +} + +sub removeuploadedurl { + my ($url)=@_; + my (undef,undef,$udom,$uname,$fname)=split('/',$url,5); + return &removeuserfile($uname,$udom,$fname); +} + +sub removeuserfile { + my ($docuname,$docudom,$fname)=@_; + my $home=&homeserver($docuname,$docudom); + my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home); + if ($result eq 'ok') { + if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) { + my $metafile = $fname.'.meta'; + my $metaresult = &removeuserfile($docuname,$docudom,$metafile); + my $url = "/uploaded/$docudom/$docuname/$fname"; + my ($file,$group) = (&parse_portfolio_url($url))[3,4]; + my $sqlresult = + &update_portfolio_table($docuname,$docudom,$file, + 'portfolio_metadata',$group, + 'delete'); + } + } + return $result; +} + +sub mkdiruserfile { + my ($docuname,$docudom,$dir)=@_; + my $home=&homeserver($docuname,$docudom); + return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home); +} + +sub renameuserfile { + my ($docuname,$docudom,$old,$new)=@_; + my $home=&homeserver($docuname,$docudom); + my $result = &reply("renameuserfile:$docudom:$docuname:". + &escape("$old").':'.&escape("$new"),$home); + if ($result eq 'ok') { + if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) { + my $oldmeta = $old.'.meta'; + my $newmeta = $new.'.meta'; + my $metaresult = + &renameuserfile($docuname,$docudom,$oldmeta,$newmeta); + my $url = "/uploaded/$docudom/$docuname/$old"; + my ($file,$group) = (&parse_portfolio_url($url))[3,4]; + my $sqlresult = + &update_portfolio_table($docuname,$docudom,$file, + 'portfolio_metadata',$group, + 'delete'); + } + } + return $result; } # ------------------------------------------------------------------------- Log @@ -1271,8 +4924,7 @@ sub flushcourselogs { # times and course titles for all courseids # my %courseidbuffer=(); - foreach (keys %courselogs) { - my $crsid=$_; + foreach my $crsid (keys(%courselogs)) { if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'. &escape($courselogs{$crsid}), $coursehombuf{$crsid}) eq 'ok') { @@ -1280,44 +4932,63 @@ sub flushcourselogs { } else { &logthis('Failed to flush log buffer for '.$crsid); if (length($courselogs{$crsid})>40000) { - &logthis("WARNING: Buffer for ".$crsid. + &logthis("WARNING: Buffer for ".$crsid. " exceeded maximum size, deleting."); delete $courselogs{$crsid}; } } - if ($courseidbuffer{$coursehombuf{$crsid}}) { - $courseidbuffer{$coursehombuf{$crsid}}.='&'. - &escape($crsid).'='.&escape($coursedescrbuf{$crsid}); - } else { - $courseidbuffer{$coursehombuf{$crsid}}= - &escape($crsid).'='.&escape($coursedescrbuf{$crsid}); - } + $courseidbuffer{$coursehombuf{$crsid}}{$crsid} = { + 'description' => $coursedescrbuf{$crsid}, + 'inst_code' => $courseinstcodebuf{$crsid}, + 'type' => $coursetypebuf{$crsid}, + 'owner' => $courseownerbuf{$crsid}, + }; } # # Write course id database (reverse lookup) to homeserver of courses # Is used in pickcourse # - foreach (keys %courseidbuffer) { - &courseidput($hostdom{$_},$courseidbuffer{$_},$_); + foreach my $crs_home (keys(%courseidbuffer)) { + my $response = &courseidput(&host_domain($crs_home), + $courseidbuffer{$crs_home}, + $crs_home,'timeonly'); } # # File accesses # Writes to the dynamic metadata of resources to get hit counts, etc. # - foreach (keys %accesshash) { - my $entry=$_; - $entry=~/\_\_\_(\w+)\/(\w+)\/(.*)\_\_\_(\w+)$/; - my %temphash=($entry => $accesshash{$entry}); - if (&Apache::lonnet::put('nohist_resevaldata',\%temphash,$1,$2) eq 'ok') { - delete $accesshash{$entry}; + foreach my $entry (keys(%accesshash)) { + if ($entry =~ /___count$/) { + my ($dom,$name); + ($dom,$name,undef)= + ($entry=~m{___($match_domain)/($match_name)/(.*)___count$}); + if (! defined($dom) || $dom eq '' || + ! defined($name) || $name eq '') { + my $cid = $env{'request.course.id'}; + $dom = $env{'request.'.$cid.'.domain'}; + $name = $env{'request.'.$cid.'.num'}; + } + my $value = $accesshash{$entry}; + my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/); + my %temphash=($url => $value); + my $result = &inc('nohist_accesscount',\%temphash,$dom,$name); + if ($result eq 'ok') { + delete $accesshash{$entry}; + } + } else { + my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$}); + if (($dom eq 'uploaded') || ($dom eq 'adm')) { next; } + my %temphash=($entry => $accesshash{$entry}); + if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') { + delete $accesshash{$entry}; + } } } # # Roles # Reverse lookup of user roles for course faculty/staff and co-authorship # - foreach (keys %userrolehash) { - my $entry=$_; + foreach my $entry (keys(%userrolehash)) { my ($role,$uname,$udom,$runame,$rudom,$rsec)= split(/\:/,$entry); if (&Apache::lonnet::put('nohist_userroles', @@ -1326,40 +4997,100 @@ sub flushcourselogs { delete $userrolehash{$entry}; } } +# +# Reverse lookup of domain roles (dc, ad, li, sc, dh, da, au) +# + my %domrolebuffer = (); + foreach my $entry (keys(%domainrolehash)) { + my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry); + if ($domrolebuffer{$rudom}) { + $domrolebuffer{$rudom}.='&'.&escape($entry). + '='.&escape($domainrolehash{$entry}); + } else { + $domrolebuffer{$rudom}.=&escape($entry). + '='.&escape($domainrolehash{$entry}); + } + delete $domainrolehash{$entry}; + } + foreach my $dom (keys(%domrolebuffer)) { + my %servers; + if (defined(&domain($dom,'primary'))) { + my $primary=&domain($dom,'primary'); + my $hostname=&hostname($primary); + $servers{$primary} = $hostname; + } else { + %servers = &get_servers($dom,'library'); + } + foreach my $tryserver (keys(%servers)) { + if (&reply('domroleput:'.$dom.':'. + $domrolebuffer{$dom},$tryserver) eq 'ok') { + last; + } else { + &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver); + } + } + } $dumpcount++; } sub courselog { my $what=shift; $what=time.':'.$what; - unless ($ENV{'request.course.id'}) { return ''; } - $coursedombuf{$ENV{'request.course.id'}}= - $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}; - $coursenumbuf{$ENV{'request.course.id'}}= - $ENV{'course.'.$ENV{'request.course.id'}.'.num'}; - $coursehombuf{$ENV{'request.course.id'}}= - $ENV{'course.'.$ENV{'request.course.id'}.'.home'}; - $coursedescrbuf{$ENV{'request.course.id'}}= - $ENV{'course.'.$ENV{'request.course.id'}.'.description'}; - if (defined $courselogs{$ENV{'request.course.id'}}) { - $courselogs{$ENV{'request.course.id'}}.='&'.$what; + unless ($env{'request.course.id'}) { return ''; } + $coursedombuf{$env{'request.course.id'}}= + $env{'course.'.$env{'request.course.id'}.'.domain'}; + $coursenumbuf{$env{'request.course.id'}}= + $env{'course.'.$env{'request.course.id'}.'.num'}; + $coursehombuf{$env{'request.course.id'}}= + $env{'course.'.$env{'request.course.id'}.'.home'}; + $coursedescrbuf{$env{'request.course.id'}}= + $env{'course.'.$env{'request.course.id'}.'.description'}; + $courseinstcodebuf{$env{'request.course.id'}}= + $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}; + $courseownerbuf{$env{'request.course.id'}}= + $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'}; + $coursetypebuf{$env{'request.course.id'}}= + $env{'course.'.$env{'request.course.id'}.'.type'}; + if (defined $courselogs{$env{'request.course.id'}}) { + $courselogs{$env{'request.course.id'}}.='&'.$what; } else { - $courselogs{$ENV{'request.course.id'}}.=$what; + $courselogs{$env{'request.course.id'}}.=$what; } - if (length($courselogs{$ENV{'request.course.id'}})>4048) { + if (length($courselogs{$env{'request.course.id'}})>4048) { &flushcourselogs(); } } sub courseacclog { my $fnsymb=shift; - unless ($ENV{'request.course.id'}) { return ''; } - my $what=$fnsymb.':'.$ENV{'user.name'}.':'.$ENV{'user.domain'}; - if ($fnsymb=~/(problem|exam|quiz|assess|survey|form|page)$/) { + unless ($env{'request.course.id'}) { return ''; } + my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'}; + if ($fnsymb=~/$LONCAPA::assess_re/) { $what.=':POST'; - foreach (keys %ENV) { - if ($_=~/^form\.(.*)/) { - $what.=':'.$1.'='.$ENV{$_}; + # FIXME: Probably ought to escape things.... + foreach my $key (keys(%env)) { + if ($key=~/^form\.(.*)/) { + my $formitem = $1; + if ($formitem =~ /^HWFILE(?:SIZE|TOOBIG)/) { + $what.=':'.$formitem.'='.$env{$key}; + } elsif ($formitem !~ /^HWFILE(?:[^.]+)$/) { + if ($formitem eq 'proctorpassword') { + $what.=':'.$formitem.'=' . '*' x length($env{$key}); + } else { + $what.=':'.$formitem.'='.$env{$key}; + } + } + } + } + } elsif ($fnsymb =~ m:^/adm/searchcat:) { + # FIXME: We should not be depending on a form parameter that someone + # editing lonsearchcat.pm might change in the future. + if ($env{'form.phase'} eq 'course_search') { + $what.= ':POST'; + # FIXME: Probably ought to escape things.... + foreach my $element ('courseexp','crsfulltext','crsrelated', + 'crsdiscuss') { + $what.=':'.$element.'='.$env{'form.'.$element}; } } } @@ -1368,14 +5099,17 @@ sub courseacclog { sub countacc { my $url=&declutter(shift); - unless ($ENV{'request.course.id'}) { return ''; } - $accesshash{$ENV{'request.course.id'}.'___'.$url.'___course'}=1; + return if (! defined($url) || $url eq ''); + unless ($env{'request.course.id'}) { return ''; } +# +# Mark that this url was used in this course +# + $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1; +# +# Increase the access count for this resource in this child process +# my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count'; - if (defined($accesshash{$key})) { - $accesshash{$key}++; - } else { - $accesshash{$key}=1; - } + $accesshash{$key}++; } sub linklog { @@ -1385,83 +5119,473 @@ sub linklog { $accesshash{$from.'___'.$to.'___comefrom'}=1; $accesshash{$to.'___'.$from.'___goto'}=1; } + +sub statslog { + my ($symb,$part,$users,$av_attempts,$degdiff)=@_; + if ($users<2) { return; } + my %dynstore=&LONCAPA::lonmetadata::dynamic_metadata_storage({ + 'course' => $env{'request.course.id'}, + 'sections' => '"all"', + 'num_students' => $users, + 'part' => $part, + 'symb' => $symb, + 'mean_tries' => $av_attempts, + 'deg_of_diff' => $degdiff}); + foreach my $key (keys(%dynstore)) { + $accesshash{$key}=$dynstore{$key}; + } +} sub userrolelog { my ($trole,$username,$domain,$area,$tstart,$tend)=@_; - if (($trole=~/^ca/) || ($trole=~/^in/) || - ($trole=~/^cc/) || ($trole=~/^ep/) || - ($trole=~/^cr/)) { + if ( $trole =~ /^(ca|aa|in|cc|ep|cr|ta|co)/ ) { my (undef,$rudom,$runame,$rsec)=split(/\//,$area); $userrolehash {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec} =$tend.':'.$tstart; - } + } + if ($env{'request.role'} =~ /dc\./ && $trole =~ /^(au|in|cc|ep|cr|ta|co)/) { + $userrolehash + {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'} + =$tend.':'.$tstart; + } + if ($trole =~ /^(dc|ad|li|au|dg|sc|dh|da)/ ) { + my (undef,$rudom,$runame,$rsec)=split(/\//,$area); + $domainrolehash + {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec} + = $tend.':'.$tstart; + } +} + +sub courserolelog { + my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$selfenroll,$context)=@_; + if ($area =~ m-^/($match_domain)/($match_courseid)/?([^/]*)-) { + my $cdom = $1; + my $cnum = $2; + my $sec = $3; + my $namespace = 'rolelog'; + my %storehash = ( + role => $trole, + start => $tstart, + end => $tend, + selfenroll => $selfenroll, + context => $context, + ); + if ($trole eq 'gr') { + $namespace = 'groupslog'; + $storehash{'group'} = $sec; + } else { + $storehash{'section'} = $sec; + } + &write_log('course',$namespace,\%storehash,$delflag,$username, + $domain,$cnum,$cdom); + if (($trole ne 'st') || ($sec ne '')) { + &devalidate_cache_new('getcourseroles',$cdom.'_'.$cnum); + } + } + return; +} + +sub domainrolelog { + my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$context)=@_; + if ($area =~ m{^/($match_domain)/$}) { + my $cdom = $1; + my $domconfiguser = &Apache::lonnet::get_domainconfiguser($cdom); + my $namespace = 'rolelog'; + my %storehash = ( + role => $trole, + start => $tstart, + end => $tend, + context => $context, + ); + &write_log('domain',$namespace,\%storehash,$delflag,$username, + $domain,$domconfiguser,$cdom); + } + return; + +} + +sub coauthorrolelog { + my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$context)=@_; + if ($area =~ m{^/($match_domain)/($match_username)$}) { + my $audom = $1; + my $auname = $2; + my $namespace = 'rolelog'; + my %storehash = ( + role => $trole, + start => $tstart, + end => $tend, + context => $context, + ); + &write_log('author',$namespace,\%storehash,$delflag,$username, + $domain,$auname,$audom); + } + return; } sub get_course_adv_roles { - my $cid=shift; - $cid=$ENV{'request.course.id'} unless (defined($cid)); + my ($cid,$codes) = @_; + $cid=$env{'request.course.id'} unless (defined($cid)); my %coursehash=&coursedescription($cid); + my $crstype = &Apache::loncommon::course_type($cid); + my %nothide=(); + foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) { + if ($user !~ /:/) { + $nothide{join(':',split(/[\@]/,$user))}=1; + } else { + $nothide{$user}=1; + } + } + my @possdoms = ($coursehash{'domain'}); + if ($coursehash{'checkforpriv'}) { + push(@possdoms,split(/,/,$coursehash{'checkforpriv'})); + } my %returnhash=(); my %dumphash= &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'}); my $now=time; - foreach (keys %dumphash) { - my ($tend,$tstart)=split(/\:/,$dumphash{$_}); + my %privileged; + foreach my $entry (keys(%dumphash)) { + my ($tend,$tstart)=split(/\:/,$dumphash{$entry}); if (($tstart) && ($tstart<0)) { next; } if (($tend) && ($tend<$now)) { next; } if (($tstart) && ($now<$tstart)) { next; } - my ($role,$username,$domain,$section)=split(/\:/,$_); - my $key=&plaintext($role); - if ($section) { $key.=' (Sec/Grp '.$section.')'; } - if ($returnhash{$key}) { - $returnhash{$key}.=','.$username.':'.$domain; + my ($role,$username,$domain,$section)=split(/\:/,$entry); + if ($username eq '' || $domain eq '') { next; } + if ((&privileged($username,$domain,\@possdoms)) && + (!$nothide{$username.':'.$domain})) { next; } + if ($role eq 'cr') { next; } + if ($codes) { + if ($section) { $role .= ':'.$section; } + if ($returnhash{$role}) { + $returnhash{$role}.=','.$username.':'.$domain; + } else { + $returnhash{$role}=$username.':'.$domain; + } } else { - $returnhash{$key}=$username.':'.$domain; + my $key=&plaintext($role,$crstype); + if ($section) { $key.=' ('.&Apache::lonlocal::mt('Section [_1]',$section).')'; } + if ($returnhash{$key}) { + $returnhash{$key}.=','.$username.':'.$domain; + } else { + $returnhash{$key}=$username.':'.$domain; + } } - } + } return %returnhash; } sub get_my_roles { - my ($uname,$udom)=@_; - unless (defined($uname)) { $uname=$ENV{'user.name'}; } - unless (defined($udom)) { $udom=$ENV{'user.domain'}; } - my %dumphash= - &dump('nohist_userroles',$udom,$uname); + my ($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv)=@_; + unless (defined($uname)) { $uname=$env{'user.name'}; } + unless (defined($udom)) { $udom=$env{'user.domain'}; } + my (%dumphash,%nothide); + if ($context eq 'userroles') { + %dumphash = &dump('roles',$udom,$uname); + } else { + %dumphash = &dump('nohist_userroles',$udom,$uname); + if ($hidepriv) { + my %coursehash=&coursedescription($udom.'_'.$uname); + foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) { + if ($user !~ /:/) { + $nothide{join(':',split(/[\@]/,$user))} = 1; + } else { + $nothide{$user} = 1; + } + } + } + } my %returnhash=(); my $now=time; - foreach (keys %dumphash) { - my ($tend,$tstart)=split(/\:/,$dumphash{$_}); + my %privileged; + foreach my $entry (keys(%dumphash)) { + my ($role,$tend,$tstart); + if ($context eq 'userroles') { + next if ($entry =~ /^rolesdef/); + ($role,$tend,$tstart)=split(/_/,$dumphash{$entry}); + } else { + ($tend,$tstart)=split(/\:/,$dumphash{$entry}); + } if (($tstart) && ($tstart<0)) { next; } - if (($tend) && ($tend<$now)) { next; } - if (($tstart) && ($now<$tstart)) { next; } - my ($role,$username,$domain,$section)=split(/\:/,$_); - $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend; - } + my $status = 'active'; + if (($tend) && ($tend<=$now)) { + $status = 'previous'; + } + if (($tstart) && ($now<$tstart)) { + $status = 'future'; + } + if (ref($types) eq 'ARRAY') { + if (!grep(/^\Q$status\E$/,@{$types})) { + next; + } + } else { + if ($status ne 'active') { + next; + } + } + my ($rolecode,$username,$domain,$section,$area); + if ($context eq 'userroles') { + ($area,$rolecode) = ($entry =~ /^(.+)_([^_]+)$/); + (undef,$domain,$username,$section) = split(/\//,$area); + } else { + ($role,$username,$domain,$section) = split(/\:/,$entry); + } + if (ref($roledoms) eq 'ARRAY') { + if (!grep(/^\Q$domain\E$/,@{$roledoms})) { + next; + } + } + if (ref($roles) eq 'ARRAY') { + if (!grep(/^\Q$role\E$/,@{$roles})) { + if ($role =~ /^cr\//) { + if (!grep(/^cr$/,@{$roles})) { + next; + } + } elsif ($role =~ /^gr\//) { + if (!grep(/^gr$/,@{$roles})) { + next; + } + } else { + next; + } + } + } + if ($hidepriv) { + my @privroles = ('dc','su'); + if ($context eq 'userroles') { + next if (grep(/^\Q$role\E$/,@privroles)); + } else { + my $possdoms = [$domain]; + if (ref($roledoms) eq 'ARRAY') { + push(@{$possdoms},@{$roledoms}); + } + if (&privileged($username,$domain,$possdoms,\@privroles)) { + if (!$nothide{$username.':'.$domain}) { + next; + } + } + } + } + if ($withsec) { + $returnhash{$username.':'.$domain.':'.$role.':'.$section} = + $tstart.':'.$tend; + } else { + $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend; + } + } return %returnhash; } +sub get_all_adhocroles { + my ($dom) = @_; + my @roles_by_num = (); + my %domdefaults = &get_domain_defaults($dom); + my (%description,%access_in_dom,%access_info); + if (ref($domdefaults{'adhocroles'}) eq 'HASH') { + my $count = 0; + my %domcurrent = %{$domdefaults{'adhocroles'}}; + my %ordered; + foreach my $role (sort(keys(%domcurrent))) { + my ($order,$desc,$access_in_dom); + if (ref($domcurrent{$role}) eq 'HASH') { + $order = $domcurrent{$role}{'order'}; + $desc = $domcurrent{$role}{'desc'}; + $access_in_dom{$role} = $domcurrent{$role}{'access'}; + $access_info{$role} = $domcurrent{$role}{$access_in_dom{$role}}; + } + if ($order eq '') { + $order = $count; + } + $ordered{$order} = $role; + if ($desc ne '') { + $description{$role} = $desc; + } else { + $description{$role}= $role; + } + $count++; + } + foreach my $item (sort {$a <=> $b } (keys(%ordered))) { + push(@roles_by_num,$ordered{$item}); + } + } + return (\@roles_by_num,\%description,\%access_in_dom,\%access_info); +} + +sub get_my_adhocroles { + my ($cid,$checkreg) = @_; + my ($cdom,$cnum,%info,@possroles,$description,$roles_by_num); + if ($env{'request.course.id'} eq $cid) { + $cdom = $env{'course.'.$cid.'.domain'}; + $cnum = $env{'course.'.$cid.'.num'}; + $info{'internal.coursecode'} = $env{'course.'.$cid.'.internal.coursecode'}; + } elsif ($cid =~ /^($match_domain)_($match_courseid)$/) { + $cdom = $1; + $cnum = $2; + %info = &Apache::lonnet::get('environment',['internal.coursecode'], + $cdom,$cnum); + } + if (($info{'internal.coursecode'} ne '') && ($checkreg)) { + my $user = $env{'user.name'}.':'.$env{'user.domain'}; + my %rosterhash = &get('classlist',[$user],$cdom,$cnum); + if ($rosterhash{$user} ne '') { + my $type = (split(/:/,$rosterhash{$user}))[5]; + return ([],{}) if ($type eq 'auto'); + } + } + if (($cdom ne '') && ($cnum ne '')) { + if (($env{"user.role.dh./$cdom/"}) || ($env{"user.role.da./$cdom/"})) { + my $then=$env{'user.login.time'}; + my $update=$env{'user.update.time'}; + if (!$update) { + $update = $then; + } + my @liveroles; + foreach my $role ('dh','da') { + if ($env{"user.role.$role./$cdom/"}) { + my ($tstart,$tend)=split(/\./,$env{"user.role.$role./$cdom/"}); + my $limit = $update; + if ($env{'request.role'} eq "$role./$cdom/") { + $limit = $then; + } + my $activerole = 1; + if ($tstart && $tstart>$limit) { $activerole = 0; } + if ($tend && $tend <$limit) { $activerole = 0; } + if ($activerole) { + push(@liveroles,$role); + } + } + } + if (@liveroles) { + if (&homeserver($cnum,$cdom) ne 'no_host') { + my ($accessref,$accessinfo,%access_in_dom); + ($roles_by_num,$description,$accessref,$accessinfo) = &get_all_adhocroles($cdom); + if (ref($roles_by_num) eq 'ARRAY') { + if (@{$roles_by_num}) { + my %settings; + if ($env{'request.course.id'} eq $cid) { + foreach my $envkey (keys(%env)) { + if ($envkey =~ /^\Qcourse.$cid.\E(internal\.adhoc.+)$/) { + $settings{$1} = $env{$envkey}; + } + } + } else { + %settings = &dump('environment',$cdom,$cnum,'internal\.adhoc'); + } + my %setincrs; + if ($settings{'internal.adhocaccess'}) { + map { $setincrs{$_} = 1; } split(/,/,$settings{'internal.adhocaccess'}); + } + my @statuses; + if ($env{'environment.inststatus'}) { + @statuses = split(/,/,$env{'environment.inststatus'}); + } + my $user = $env{'user.name'}.':'.$env{'user.domain'}; + if (ref($accessref) eq 'HASH') { + %access_in_dom = %{$accessref}; + } + foreach my $role (@{$roles_by_num}) { + my ($curraccess,@okstatus,@personnel); + if ($setincrs{$role}) { + ($curraccess,my $rest) = split(/=/,$settings{'internal.adhoc.'.$role}); + if ($curraccess eq 'status') { + @okstatus = split(/\&/,$rest); + } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) { + @personnel = split(/\&/,$rest); + } + } else { + $curraccess = $access_in_dom{$role}; + if (ref($accessinfo) eq 'HASH') { + if ($curraccess eq 'status') { + if (ref($accessinfo->{$role}) eq 'ARRAY') { + @okstatus = @{$accessinfo->{$role}}; + } + } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) { + if (ref($accessinfo->{$role}) eq 'ARRAY') { + @personnel = @{$accessinfo->{$role}}; + } + } + } + } + if ($curraccess eq 'none') { + next; + } elsif ($curraccess eq 'all') { + push(@possroles,$role); + } elsif ($curraccess eq 'dh') { + if (grep(/^dh$/,@liveroles)) { + push(@possroles,$role); + } else { + next; + } + } elsif ($curraccess eq 'da') { + if (grep(/^da$/,@liveroles)) { + push(@possroles,$role); + } else { + next; + } + } elsif ($curraccess eq 'status') { + if (@okstatus) { + if (!@statuses) { + if (grep(/^default$/,@okstatus)) { + push(@possroles,$role); + } + } else { + foreach my $status (@okstatus) { + if (grep(/^\Q$status\E$/,@statuses)) { + push(@possroles,$role); + last; + } + } + } + } + } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) { + if (grep(/^\Q$user\E$/,@personnel)) { + if ($curraccess eq 'exc') { + push(@possroles,$role); + } + } elsif ($curraccess eq 'inc') { + push(@possroles,$role); + } + } + } + } + } + } + } + } + } + unless (ref($description) eq 'HASH') { + if (ref($roles_by_num) eq 'ARRAY') { + my %desc; + map { $desc{$_} = $_; } (@{$roles_by_num}); + $description = \%desc; + } else { + $description = {}; + } + } + return (\@possroles,$description); +} + # ----------------------------------------------------- Frontpage Announcements # # sub postannounce { my ($server,$text)=@_; - unless (&allowed('psa',$hostdom{$server})) { return 'refused'; } + unless (&allowed('psa',&host_domain($server))) { return 'refused'; } unless ($text=~/\w/) { $text=''; } return &reply('setannounce:'.&escape($text),$server); } sub getannounce { - if (my $fh=Apache::File->new($perlvar{'lonDocRoot'}.'/announcement.txt')) { + + if (open(my $fh,"<",$perlvar{'lonDocRoot'}.'/announcement.txt')) { my $announcement=''; - while (<$fh>) { $announcement .=$_; } - $fh->close(); + while (my $line = <$fh>) { $announcement .= $line; } + close($fh); if ($announcement=~/\w/) { return ''. - '
'.$announcement.'
'; + ''.$announcement.''; } else { return ''; } @@ -1475,132 +5599,326 @@ sub getannounce { # sub courseidput { - my ($domain,$what,$coursehome)=@_; - return &reply('courseidput:'.$domain.':'.$what,$coursehome); + my ($domain,$storehash,$coursehome,$caller) = @_; + return unless (ref($storehash) eq 'HASH'); + my $outcome; + if ($caller eq 'timeonly') { + my $cids = ''; + foreach my $item (keys(%$storehash)) { + $cids.=&escape($item).'&'; + } + $cids=~s/\&$//; + $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$cids, + $coursehome); + } else { + my $items = ''; + foreach my $item (keys(%$storehash)) { + $items.= &escape($item).'='. + &freeze_escape($$storehash{$item}).'&'; + } + $items=~s/\&$//; + $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$items, + $coursehome); + } + if ($outcome eq 'unknown_cmd') { + my $what; + foreach my $cid (keys(%$storehash)) { + $what .= &escape($cid).'='; + foreach my $item ('description','inst_code','owner','type') { + $what .= &escape($storehash->{$cid}{$item}).':'; + } + $what =~ s/\:$/&/; + } + $what =~ s/\&$//; + return &reply('courseidput:'.$domain.':'.$what,$coursehome); + } else { + return $outcome; + } } sub courseiddump { - my ($domfilter,$descfilter,$sincefilter)=@_; - my %returnhash=(); - unless ($domfilter) { $domfilter=''; } - foreach my $tryserver (keys %libserv) { - if ((!$domfilter) || ($hostdom{$tryserver} eq $domfilter)) { - foreach ( - split(/\&/,&reply('courseiddump:'.$hostdom{$tryserver}.':'. - $sincefilter.':'.&escape($descfilter), - $tryserver))) { - my ($key,$value)=split(/\=/,$_); - if (($key) && ($value)) { - $returnhash{&unescape($key)}=&unescape($value); + my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter, + $coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok, + $selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone, + $cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner, + $hasuniquecode,$reqcrsdom,$reqinstcode)=@_; + my $as_hash = 1; + my %returnhash; + if (!$domfilter) { $domfilter=''; } + my %libserv = &all_library(); + foreach my $tryserver (keys(%libserv)) { + if ( ( $hostidflag == 1 + && grep(/^\Q$tryserver\E$/,@{$hostidref}) ) + || (!defined($hostidflag)) ) { + + if (($domfilter eq '') || + (&host_domain($tryserver) eq $domfilter)) { + my $rep; + if (grep { $_ eq $tryserver } current_machine_ids()) { + $rep = LONCAPA::Lond::dump_course_id_handler( + join(":", (&host_domain($tryserver), $sincefilter, + &escape($descfilter), &escape($instcodefilter), + &escape($ownerfilter), &escape($coursefilter), + &escape($typefilter), &escape($regexp_ok), + $as_hash, &escape($selfenrollonly), + &escape($catfilter), $showhidden, $caller, + &escape($cloner), &escape($cc_clone), $cloneonly, + &escape($createdbefore), &escape($createdafter), + &escape($creationcontext),$domcloner,$hasuniquecode, + $reqcrsdom,&escape($reqinstcode)))); + } else { + $rep = &reply('courseiddump:'.&host_domain($tryserver).':'. + $sincefilter.':'.&escape($descfilter).':'. + &escape($instcodefilter).':'.&escape($ownerfilter). + ':'.&escape($coursefilter).':'.&escape($typefilter). + ':'.&escape($regexp_ok).':'.$as_hash.':'. + &escape($selfenrollonly).':'.&escape($catfilter).':'. + $showhidden.':'.$caller.':'.&escape($cloner).':'. + &escape($cc_clone).':'.$cloneonly.':'. + &escape($createdbefore).':'.&escape($createdafter).':'. + &escape($creationcontext).':'.$domcloner.':'.$hasuniquecode. + ':'.$reqcrsdom.':'.&escape($reqinstcode),$tryserver); + } + + my @pairs=split(/\&/,$rep); + foreach my $item (@pairs) { + my ($key,$value)=split(/\=/,$item,2); + $key = &unescape($key); + next if ($key =~ /^error: 2 /); + my $result = &thaw_unescape($value); + if (ref($result) eq 'HASH') { + $returnhash{$key}=$result; + } else { + my @responses = split(/:/,$value); + my @items = ('description','inst_code','owner','type'); + for (my $i=0; $i<@responses; $i++) { + $returnhash{$key}{$items[$i]} = &unescape($responses[$i]); + } + } } } - } } return %returnhash; } -# -# ----------------------------------------------------------- Check out an item - -sub checkout { - my ($symb,$tuname,$tudom,$tcrsid)=@_; - my $now=time; - my $lonhost=$perlvar{'lonHostID'}; - my $infostr=&escape( - 'CHECKOUTTOKEN&'. - $tuname.'&'. - $tudom.'&'. - $tcrsid.'&'. - $symb.'&'. - $now.'&'.$ENV{'REMOTE_ADDR'}); - my $token=&reply('tmpput:'.$infostr,$lonhost); - if ($token=~/^error\:/) { - &logthis("WARNING: ". - "Checkout tmpput failed ".$tudom.' - '.$tuname.' - '.$symb. - ""); - return ''; - } - - $token=~s/^(\d+)\_.*\_(\d+)$/$1\*$2\*$lonhost/; - $token=~tr/a-z/A-Z/; - - my %infohash=('resource.0.outtoken' => $token, - 'resource.0.checkouttime' => $now, - 'resource.0.outremote' => $ENV{'REMOTE_ADDR'}); - - unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') { - return ''; - } else { - &logthis("WARNING: ". - "Checkout cstore failed ".$tudom.' - '.$tuname.' - '.$symb. - ""); - } - - if (&log($tudom,$tuname,&homeserver($tuname,$tudom), - &escape('Checkout '.$infostr.' - '. - $token)) ne 'ok') { - return ''; +sub courselastaccess { + my ($cdom,$cnum,$hostidref) = @_; + my %returnhash; + if ($cdom && $cnum) { + my $chome = &homeserver($cnum,$cdom); + if ($chome ne 'no_host') { + my $rep = &reply('courselastaccess:'.$cdom.':'.$cnum,$chome); + &extract_lastaccess(\%returnhash,$rep); + } } else { - &logthis("WARNING: ". - "Checkout log failed ".$tudom.' - '.$tuname.' - '.$symb. - ""); + if (!$cdom) { $cdom=''; } + my %libserv = &all_library(); + foreach my $tryserver (keys(%libserv)) { + if (ref($hostidref) eq 'ARRAY') { + next unless (grep(/^\Q$tryserver\E$/,@{$hostidref})); + } + if (($cdom eq '') || (&host_domain($tryserver) eq $cdom)) { + my $rep = &reply('courselastaccess:'.&host_domain($tryserver).':',$tryserver); + &extract_lastaccess(\%returnhash,$rep); + } + } + } + return %returnhash; +} + +sub extract_lastaccess { + my ($returnhash,$rep) = @_; + if (ref($returnhash) eq 'HASH') { + unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' || + $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' || + $rep eq '') { + my @pairs=split(/\&/,$rep); + foreach my $item (@pairs) { + my ($key,$value)=split(/\=/,$item,2); + $key = &unescape($key); + next if ($key =~ /^error: 2 /); + $returnhash->{$key} = &thaw_unescape($value); + } + } } - return $token; + return; } -# ------------------------------------------------------------ Check in an item +# ---------------------------------------------------------- DC e-mail -sub checkin { - my $token=shift; - my $now=time; - my ($ta,$tb,$lonhost)=split(/\*/,$token); - $lonhost=~tr/A-Z/a-z/; - my $dtoken=$ta.'_'.$hostip{$lonhost}.'_'.$tb; - $dtoken=~s/\W/\_/g; - my ($dummy,$tuname,$tudom,$tcrsid,$symb,$chtim,$rmaddr)= - split(/\&/,&unescape(&reply('tmpget:'.$dtoken,$lonhost))); +sub dcmailput { + my ($domain,$msgid,$message,$server)=@_; + my $status = &Apache::lonnet::critical( + 'dcmailput:'.$domain.':'.&escape($msgid).'='. + &escape($message),$server); + return $status; +} - unless (($tuname) && ($tudom)) { - &logthis('Check in '.$token.' ('.$dtoken.') failed'); - return ''; +sub dcmaildump { + my ($dom,$startdate,$enddate,$senders) = @_; + my %returnhash=(); + + if (defined(&domain($dom,'primary'))) { + my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'. + &escape($enddate).':'; + my @esc_senders=map { &escape($_)} @$senders; + $cmd.=&escape(join('&',@esc_senders)); + foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) { + my ($key,$value) = split(/\=/,$line,2); + if (($key) && ($value)) { + $returnhash{&unescape($key)} = &unescape($value); + } + } } - - unless (&allowed('mgr',$tcrsid)) { - &logthis('Check in '.$token.' ('.$dtoken.') unauthorized: '. - $ENV{'user.name'}.' - '.$ENV{'user.domain'}); - return ''; + return %returnhash; +} +# ---------------------------------------------------------- Domain roles + +sub get_domain_roles { + my ($dom,$roles,$startdate,$enddate)=@_; + if ((!defined($startdate)) || ($startdate eq '')) { + $startdate = '.'; + } + if ((!defined($enddate)) || ($enddate eq '')) { + $enddate = '.'; + } + my $rolelist; + if (ref($roles) eq 'ARRAY') { + $rolelist = join('&',@{$roles}); + } + my %personnel = (); + + my %servers = &get_servers($dom,'library'); + foreach my $tryserver (keys(%servers)) { + %{$personnel{$tryserver}}=(); + foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'. + &escape($startdate).':'. + &escape($enddate).':'. + &escape($rolelist), $tryserver))) { + my ($key,$value) = split(/\=/,$line,2); + if (($key) && ($value)) { + $personnel{$tryserver}{&unescape($key)} = &unescape($value); + } + } } + return %personnel; +} - my %infohash=('resource.0.intoken' => $token, - 'resource.0.checkintime' => $now, - 'resource.0.inremote' => $ENV{'REMOTE_ADDR'}); +sub get_active_domroles { + my ($dom,$roles) = @_; + return () unless (ref($roles) eq 'ARRAY'); + my $now = time; + my %dompersonnel = &get_domain_roles($dom,$roles,$now,$now); + my %domroles; + foreach my $server (keys(%dompersonnel)) { + foreach my $user (sort(keys(%{$dompersonnel{$server}}))) { + my ($trole,$uname,$udom,$runame,$rudom,$rsec) = split(/:/,$user); + $domroles{$uname.':'.$udom} = $dompersonnel{$server}{$user}; + } + } + return %domroles; +} - unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') { - return ''; - } +# ----------------------------------------------------------- Interval timing - if (&log($tudom,$tuname,&homeserver($tuname,$tudom), - &escape('Checkin - '.$token)) ne 'ok') { - return ''; +{ +# Caches needed for speedup of navmaps +# We don't want to cache this for very long at all (5 seconds at most) +# +# The user for whom we cache +my $cachedkey=''; +# The cached times for this user +my %cachedtimes=(); +# When this was last done +my $cachedtime=''; + +sub load_all_first_access { + my ($uname,$udom,$ignorecache)=@_; + if (($cachedkey eq $uname.':'.$udom) && + (abs($cachedtime-time)<5) && (!$env{'form.markaccess'}) && + (!$ignorecache)) { + return; + } + $cachedtime=time; + $cachedkey=$uname.':'.$udom; + %cachedtimes=&dump('firstaccesstimes',$udom,$uname); +} + +sub get_first_access { + my ($type,$argsymb,$argmap,$ignorecache)=@_; + my ($symb,$courseid,$udom,$uname)=&whichuser(); + if ($argsymb) { $symb=$argsymb; } + my ($map,$id,$res)=&decode_symb($symb); + if ($argmap) { $map = $argmap; } + if ($type eq 'course') { + $res='course'; + } elsif ($type eq 'map') { + $res=&symbread($map); + } else { + $res=$symb; } + &load_all_first_access($uname,$udom,$ignorecache); + return $cachedtimes{"$courseid\0$res"}; +} - return ($symb,$tuname,$tudom,$tcrsid); +sub set_first_access { + my ($type,$interval)=@_; + my ($symb,$courseid,$udom,$uname)=&whichuser(); + my ($map,$id,$res)=&decode_symb($symb); + if ($type eq 'course') { + $res='course'; + } elsif ($type eq 'map') { + $res=&symbread($map); + } else { + $res=$symb; + } + $cachedkey=''; + my $firstaccess=&get_first_access($type,$symb,$map); + if ($firstaccess) { + &logthis("First access time already set ($firstaccess) when attempting ". + "to set new value (type: $type, extent: $res) for $uname:$udom ". + "in $courseid"); + return 'already_set'; + } else { + my $start = time; + my $putres = &put('firstaccesstimes',{"$courseid\0$res"=>$start}, + $udom,$uname); + if ($putres eq 'ok') { + &put('timerinterval',{"$courseid\0$res"=>$interval}, + $udom,$uname); + &appenv( + { + 'course.'.$courseid.'.firstaccess.'.$res => $start, + 'course.'.$courseid.'.timerinterval.'.$res => $interval, + } + ); + if (($cachedtime) && (abs($start-$cachedtime) < 5)) { + $cachedtimes{"$courseid\0$res"} = $start; + } + } elsif ($putres ne 'refused') { + &logthis("Result: $putres when attempting to set first access time ". + "(type: $type, extent: $res) for $uname:$udom in $courseid"); + } + return $putres; + } + return 'already_set'; +} } # --------------------------------------------- Set Expire Date for Spreadsheet sub expirespread { my ($uname,$udom,$stype,$usymb)=@_; - my $cid=$ENV{'request.course.id'}; + my $cid=$env{'request.course.id'}; if ($cid) { my $now=time; my $key=$uname.':'.$udom.':'.$stype.':'.$usymb; - return &reply('put:'.$ENV{'course.'.$cid.'.domain'}.':'. - $ENV{'course.'.$cid.'.num'}. + return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'. + $env{'course.'.$cid.'.num'}. ':nohist_expirationdates:'. &escape($key).'='.$now, - $ENV{'course.'.$cid.'.home'}) + $env{'course.'.$cid.'.home'}) } return 'ok'; } @@ -1609,18 +5927,19 @@ sub expirespread { sub devalidate { my ($symb,$uname,$udom)=@_; - my $cid=$ENV{'request.course.id'}; + my $cid=$env{'request.course.id'}; if ($cid) { # delete the stored spreadsheets for # - the student level sheet of this user in course's homespace # - the assessment level sheet for this resource # for this user in user's homespace + # - current conditional state info my $key=$uname.':'.$udom.':'; my $status= &del('nohist_calculatedsheets', [$key.'studentcalc:'], - $ENV{'course.'.$cid.'.domain'}, - $ENV{'course.'.$cid.'.num'}) + $env{'course.'.$cid.'.domain'}, + $env{'course.'.$cid.'.num'}) .' '. &del('nohist_calculatedsheets_'.$cid, [$key.'assesscalc:'.$symb],$udom,$uname); @@ -1629,6 +5948,7 @@ sub devalidate { $uname.' at '.$udom.' for '. $symb.': '.$status); } + &delenv('user.state.'.$cid); } } @@ -1681,27 +6001,27 @@ sub hash2str { sub hashref2str { my ($hashref)=@_; my $result='__HASH_REF__'; - foreach (keys(%$hashref)) { - if (ref($_) eq 'ARRAY') { - $result.=&arrayref2str($_).'='; - } elsif (ref($_) eq 'HASH') { - $result.=&hashref2str($_).'='; - } elsif (ref($_)) { + foreach my $key (sort(keys(%$hashref))) { + if (ref($key) eq 'ARRAY') { + $result.=&arrayref2str($key).'='; + } elsif (ref($key) eq 'HASH') { + $result.=&hashref2str($key).'='; + } elsif (ref($key)) { $result.='='; - #print("Got a ref of ".(ref($_))." skipping."); + #print("Got a ref of ".(ref($key))." skipping."); } else { - if ($_) {$result.=&escape($_).'=';} else { last; } + if (defined($key)) {$result.=&escape($key).'=';} else { last; } } - if(ref($hashref->{$_}) eq 'ARRAY') { - $result.=&arrayref2str($hashref->{$_}).'&'; - } elsif(ref($hashref->{$_}) eq 'HASH') { - $result.=&hashref2str($hashref->{$_}).'&'; - } elsif(ref($hashref->{$_})) { + if(ref($hashref->{$key}) eq 'ARRAY') { + $result.=&arrayref2str($hashref->{$key}).'&'; + } elsif(ref($hashref->{$key}) eq 'HASH') { + $result.=&hashref2str($hashref->{$key}).'&'; + } elsif(ref($hashref->{$key})) { $result.='&'; - #print("Got a ref of ".(ref($hashref->{$_}))." skipping."); + #print("Got a ref of ".(ref($hashref->{$key}))." skipping."); } else { - $result.=&escape($hashref->{$_}).'&'; + $result.=&escape($hashref->{$key}).'&'; } } $result=~s/\&$//; @@ -1829,23 +6149,25 @@ sub tmpreset { my ($symb,$namespace,$domain,$stuname) = @_; if (!$symb) { $symb=&symbread(); - if (!$symb) { $symb= $ENV{'request.url'}; } + if (!$symb) { $symb= $env{'request.url'}; } } $symb=escape($symb); - if (!$namespace) { $namespace=$ENV{'request.state'}; } + if (!$namespace) { $namespace=$env{'request.state'}; } $namespace=~s/\//\_/g; $namespace=~s/\W//g; - #FIXME needs to do something for /pub resources - if (!$domain) { $domain=$ENV{'user.domain'}; } - if (!$stuname) { $stuname=$ENV{'user.name'}; } - my $path=$perlvar{'lonDaemons'}.'/tmp'; + if (!$domain) { $domain=$env{'user.domain'}; } + if (!$stuname) { $stuname=$env{'user.name'}; } + if ($domain eq 'public' && $stuname eq 'public') { + $stuname=&get_requestor_ip(); + } + my $path=LONCAPA::tempdir(); my %hash; if (tie(%hash,'GDBM_File', $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db', &GDBM_WRCREAT(),0640)) { - foreach my $key (keys %hash) { + foreach my $key (keys(%hash)) { if ($key=~ /:$symb/) { delete($hash{$key}); } @@ -1858,26 +6180,28 @@ sub tmpstore { if (!$symb) { $symb=&symbread(); - if (!$symb) { $symb= $ENV{'request.url'}; } + if (!$symb) { $symb= $env{'request.url'}; } } $symb=escape($symb); if (!$namespace) { # I don't think we would ever want to store this for a course. # it seems this will only be used if we don't have a course. - #$namespace=$ENV{'request.course.id'}; + #$namespace=$env{'request.course.id'}; #if (!$namespace) { - $namespace=$ENV{'request.state'}; + $namespace=$env{'request.state'}; #} } $namespace=~s/\//\_/g; $namespace=~s/\W//g; -#FIXME needs to do something for /pub resources - if (!$domain) { $domain=$ENV{'user.domain'}; } - if (!$stuname) { $stuname=$ENV{'user.name'}; } + if (!$domain) { $domain=$env{'user.domain'}; } + if (!$stuname) { $stuname=$env{'user.name'}; } + if ($domain eq 'public' && $stuname eq 'public') { + $stuname=&get_requestor_ip(); + } my $now=time; my %hash; - my $path=$perlvar{'lonDaemons'}.'/tmp'; + my $path=LONCAPA::tempdir(); if (tie(%hash,'GDBM_File', $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db', &GDBM_WRCREAT(),0640)) { @@ -1886,7 +6210,7 @@ sub tmpstore { my $allkeys=''; foreach my $key (keys(%$storehash)) { $allkeys.=$key.':'; - $hash{"$version:$symb:$key"}=$$storehash{$key}; + $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key}); } $hash{"$version:$symb:timestamp"}=$now; $allkeys.='timestamp'; @@ -1908,20 +6232,22 @@ sub tmprestore { if (!$symb) { $symb=&symbread(); - if (!$symb) { $symb= $ENV{'request.url'}; } + if (!$symb) { $symb= $env{'request.url'}; } } $symb=escape($symb); - if (!$namespace) { $namespace=$ENV{'request.state'}; } - #FIXME needs to do something for /pub resources - if (!$domain) { $domain=$ENV{'user.domain'}; } - if (!$stuname) { $stuname=$ENV{'user.name'}; } + if (!$namespace) { $namespace=$env{'request.state'}; } + if (!$domain) { $domain=$env{'user.domain'}; } + if (!$stuname) { $stuname=$env{'user.name'}; } + if ($domain eq 'public' && $stuname eq 'public') { + $stuname=&get_requestor_ip(); + } my %returnhash; $namespace=~s/\//\_/g; $namespace=~s/\W//g; my %hash; - my $path=$perlvar{'lonDaemons'}.'/tmp'; + my $path=LONCAPA::tempdir(); if (tie(%hash,'GDBM_File', $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db', &GDBM_READER(),0640)) { @@ -1934,8 +6260,8 @@ sub tmprestore { my $key; $returnhash{"$scope:keys"}=$vkeys; foreach $key (@keys) { - $returnhash{"$scope:$key"}=$hash{"$scope:$symb:$key"}; - $returnhash{"$key"}=$hash{"$scope:$symb:$key"}; + $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"}); + $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"}); } } if (!(untie(%hash))) { @@ -1950,7 +6276,7 @@ sub tmprestore { # ----------------------------------------------------------------------- Store sub store { - my ($storehash,$symb,$namespace,$domain,$stuname) = @_; + my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_; my $home=''; if ($stuname) { $home=&homeserver($stuname,$domain); } @@ -1958,31 +6284,35 @@ sub store { $symb=&symbclean($symb); if (!$symb) { unless ($symb=&symbread()) { return ''; } } - if (!$domain) { $domain=$ENV{'user.domain'}; } - if (!$stuname) { $stuname=$ENV{'user.name'}; } + if (!$domain) { $domain=$env{'user.domain'}; } + if (!$stuname) { $stuname=$env{'user.name'}; } &devalidate($symb,$stuname,$domain); $symb=escape($symb); if (!$namespace) { - unless ($namespace=$ENV{'request.course.id'}) { + unless ($namespace=$env{'request.course.id'}) { return ''; } } - if (!$home) { $home=$ENV{'user.home'}; } + if (!$home) { $home=$env{'user.home'}; } + + $$storehash{'ip'}=&get_requestor_ip(); + $$storehash{'host'}=$perlvar{'lonHostID'}; + my $namevalue=''; - foreach (keys %$storehash) { - $namevalue.=escape($_).'='.escape($$storehash{$_}).'&'; + foreach my $key (keys(%$storehash)) { + $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&'; } $namevalue=~s/\&$//; &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue); - return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home"); + return reply("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home"); } # -------------------------------------------------------------- Critical Store sub cstore { - my ($storehash,$symb,$namespace,$domain,$stuname) = @_; + my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_; my $home=''; if ($stuname) { $home=&homeserver($stuname,$domain); } @@ -1990,27 +6320,30 @@ sub cstore { $symb=&symbclean($symb); if (!$symb) { unless ($symb=&symbread()) { return ''; } } - if (!$domain) { $domain=$ENV{'user.domain'}; } - if (!$stuname) { $stuname=$ENV{'user.name'}; } + if (!$domain) { $domain=$env{'user.domain'}; } + if (!$stuname) { $stuname=$env{'user.name'}; } &devalidate($symb,$stuname,$domain); $symb=escape($symb); if (!$namespace) { - unless ($namespace=$ENV{'request.course.id'}) { + unless ($namespace=$env{'request.course.id'}) { return ''; } } - if (!$home) { $home=$ENV{'user.home'}; } + if (!$home) { $home=$env{'user.home'}; } + + $$storehash{'ip'}=&get_requestor_ip(); + $$storehash{'host'}=$perlvar{'lonHostID'}; my $namevalue=''; - foreach (keys %$storehash) { - $namevalue.=escape($_).'='.escape($$storehash{$_}).'&'; + foreach my $key (keys(%$storehash)) { + $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&'; } $namevalue=~s/\&$//; &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue); return critical - ("store:$domain:$stuname:$namespace:$symb:$namevalue","$home"); + ("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home"); } # --------------------------------------------------------------------- Restore @@ -2022,38 +6355,43 @@ sub restore { if ($stuname) { $home=&homeserver($stuname,$domain); } if (!$symb) { - unless ($symb=escape(&symbread())) { return ''; } + return if ($namespace eq 'courserequests'); + unless ($symb=escape(&symbread())) { return ''; } } else { - $symb=&escape(&symbclean($symb)); + unless ($namespace eq 'courserequests') { + $symb=&escape(&symbclean($symb)); + } } if (!$namespace) { - unless ($namespace=$ENV{'request.course.id'}) { + unless ($namespace=$env{'request.course.id'}) { return ''; } } - if (!$domain) { $domain=$ENV{'user.domain'}; } - if (!$stuname) { $stuname=$ENV{'user.name'}; } - if (!$home) { $home=$ENV{'user.home'}; } + if (!$domain) { $domain=$env{'user.domain'}; } + if (!$stuname) { $stuname=$env{'user.name'}; } + if (!$home) { $home=$env{'user.home'}; } my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home"); my %returnhash=(); - foreach (split(/\&/,$answer)) { - my ($name,$value)=split(/\=/,$_); - $returnhash{&unescape($name)}=&unescape($value); + foreach my $line (split(/\&/,$answer)) { + my ($name,$value)=split(/\=/,$line); + $returnhash{&unescape($name)}=&thaw_unescape($value); } my $version; for ($version=1;$version<=$returnhash{'version'};$version++) { - foreach (split(/\:/,$returnhash{$version.':keys'})) { - $returnhash{$_}=$returnhash{$version.':'.$_}; + foreach my $item (split(/\:/,$returnhash{$version.':keys'})) { + $returnhash{$item}=$returnhash{$version.':'.$item}; } } return %returnhash; } # ---------------------------------------------------------- Course Description +# +# sub coursedescription { - my $courseid=shift; + my ($courseid,$args)=@_; $courseid=~s/^\///; $courseid=~s/\_/\//g; my ($cdomain,$cnum)=split(/\//,$courseid); @@ -2063,139 +6401,655 @@ sub coursedescription { # trying and trying and trying to get the course description. my %envhash=(); my %returnhash=(); - $envhash{'course.'.$normalid.'.last_cache'}=time; + + my $expiretime=600; + if ($env{'request.course.id'} eq $normalid) { + $expiretime=120; + } + + my $prefix='course.'.$cdomain.'_'.$cnum.'.'; + if (!$args->{'freshen_cache'} + && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) { + foreach my $key (keys(%env)) { + next if ($key !~ /^\Q$prefix\E(.*)/); + my ($setting) = $1; + $returnhash{$setting} = $env{$key}; + } + return %returnhash; + } + + # get the data again + + if (!$args->{'one_time'}) { + $envhash{'course.'.$normalid.'.last_cache'}=time; + } + if ($chome ne 'no_host') { %returnhash=&dump('environment',$cdomain,$cnum); if (!exists($returnhash{'con_lost'})) { + my $username = $env{'user.name'}; # Defult username + if(defined $args->{'user'}) { + $username = $args->{'user'}; + } $returnhash{'home'}= $chome; $returnhash{'domain'} = $cdomain; $returnhash{'num'} = $cnum; + if (!defined($returnhash{'type'})) { + $returnhash{'type'} = 'Course'; + } while (my ($name,$value) = each %returnhash) { $envhash{'course.'.$normalid.'.'.$name}=$value; } $returnhash{'url'}=&clutter($returnhash{'url'}); - $returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'. - $ENV{'user.name'}.'_'.$cdomain.'_'.$cnum; + $returnhash{'fn'}=LONCAPA::tempdir() . + $username.'_'.$cdomain.'_'.$cnum; $envhash{'course.'.$normalid.'.home'}=$chome; $envhash{'course.'.$normalid.'.domain'}=$cdomain; $envhash{'course.'.$normalid.'.num'}=$cnum; } } - &appenv(%envhash); + if (!$args->{'one_time'}) { + &appenv(\%envhash); + } return %returnhash; } +sub update_released_required { + my ($needsrelease,$cdom,$cnum,$chome,$cid) = @_; + if ($cdom eq '' || $cnum eq '' || $chome eq '' || $cid eq '') { + $cid = $env{'request.course.id'}; + $cdom = $env{'course.'.$cid.'.domain'}; + $cnum = $env{'course.'.$cid.'.num'}; + $chome = $env{'course.'.$cid.'.home'}; + } + if ($needsrelease) { + my %curr_reqd_hash = &userenvironment($cdom,$cnum,'internal.releaserequired'); + my $needsupdate; + if ($curr_reqd_hash{'internal.releaserequired'} eq '') { + $needsupdate = 1; + } else { + my ($currmajor,$currminor) = split(/\./,$curr_reqd_hash{'internal.releaserequired'}); + my ($needsmajor,$needsminor) = split(/\./,$needsrelease); + if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) { + $needsupdate = 1; + } + } + if ($needsupdate) { + my %needshash = ( + 'internal.releaserequired' => $needsrelease, + ); + my $putresult = &put('environment',\%needshash,$cdom,$cnum); + if ($putresult eq 'ok') { + &appenv({'course.'.$cid.'.internal.releaserequired' => $needsrelease}); + my %crsinfo = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.'); + if (ref($crsinfo{$cid}) eq 'HASH') { + $crsinfo{$cid}{'releaserequired'} = $needsrelease; + &courseidput($cdom,\%crsinfo,$chome,'notime'); + } + } + } + } + return; +} + +# -------------------------------------------------See if a user is privileged + +sub privileged { + my ($username,$domain,$possdomains,$possroles)=@_; + my $now = time; + my $roles; + if (ref($possroles) eq 'ARRAY') { + $roles = $possroles; + } else { + $roles = ['dc','su']; + } + if (ref($possdomains) eq 'ARRAY') { + my %privileged = &privileged_by_domain($possdomains,$roles); + foreach my $dom (@{$possdomains}) { + if (($username =~ /^$match_username$/) && ($domain =~ /^$match_domain$/) && + (ref($privileged{$dom}) eq 'HASH')) { + foreach my $role (@{$roles}) { + if (ref($privileged{$dom}{$role}) eq 'HASH') { + if (exists($privileged{$dom}{$role}{$username.':'.$domain})) { + my ($end,$start) = split(/:/,$privileged{$dom}{$role}{$username.':'.$domain}); + return 1 unless (($end && $end < $now) || + ($start && $start > $now)); + } + } + } + } + } + } else { + my %rolesdump = &dump("roles", $domain, $username) or return 0; + my $now = time; + + for my $role (@rolesdump{grep { ! /^rolesdef_/ } keys(%rolesdump)}) { + my ($trole, $tend, $tstart) = split(/_/, $role); + if (grep(/^\Q$trole\E$/,@{$roles})) { + return 1 unless ($tend && $tend < $now) + or ($tstart && $tstart > $now); + } + } + } + return 0; +} + +sub privileged_by_domain { + my ($domains,$roles) = @_; + my %privileged = (); + my $cachetime = 60*60*24; + my $now = time; + unless ((ref($domains) eq 'ARRAY') && (ref($roles) eq 'ARRAY')) { + return %privileged; + } + foreach my $dom (@{$domains}) { + next if (ref($privileged{$dom}) eq 'HASH'); + my $needroles; + foreach my $role (@{$roles}) { + my ($result,$cached)=&is_cached_new('priv_'.$role,$dom); + if (defined($cached)) { + if (ref($result) eq 'HASH') { + $privileged{$dom}{$role} = $result; + } + } else { + $needroles = 1; + } + } + if ($needroles) { + my %dompersonnel = &get_domain_roles($dom,$roles); + $privileged{$dom} = {}; + foreach my $server (keys(%dompersonnel)) { + if (ref($dompersonnel{$server}) eq 'HASH') { + foreach my $item (keys(%{$dompersonnel{$server}})) { + my ($trole,$uname,$udom,$rest) = split(/:/,$item,4); + my ($end,$start) = split(/:/,$dompersonnel{$server}{$item}); + next if ($end && $end < $now); + $privileged{$dom}{$trole}{$uname.':'.$udom} = + $dompersonnel{$server}{$item}; + } + } + } + if (ref($privileged{$dom}) eq 'HASH') { + foreach my $role (@{$roles}) { + if (ref($privileged{$dom}{$role}) eq 'HASH') { + &do_cache_new('priv_'.$role,$dom,$privileged{$dom}{$role},$cachetime); + } else { + my %hash = (); + &do_cache_new('priv_'.$role,$dom,\%hash,$cachetime); + } + } + } + } + } + return %privileged; +} + # -------------------------------------------------------- Get user privileges sub rolesinit { - my ($domain,$username,$authhost)=@_; - my $rolesdump=reply("dump:$domain:$username:roles",$authhost); - if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return ''; } + my ($domain, $username) = @_; + my %userroles = ('user.login.time' => time); + my %rolesdump = &dump("roles", $domain, $username) or return \%userroles; + + # firstaccess and timerinterval are related to timed maps/resources. + # also, blocking can be triggered by an activating timer + # it's saved in the user's %env. + my %firstaccess = &dump('firstaccesstimes', $domain, $username); + my %timerinterval = &dump('timerinterval', $domain, $username); + my (%coursetimerstarts, %firstaccchk, %firstaccenv, %coursetimerintervals, + %timerintchk, %timerintenv); + + foreach my $key (keys(%firstaccess)) { + my ($cid, $rest) = split(/\0/, $key); + $coursetimerstarts{$cid}{$rest} = $firstaccess{$key}; + } + + foreach my $key (keys(%timerinterval)) { + my ($cid,$rest) = split(/\0/,$key); + $coursetimerintervals{$cid}{$rest} = $timerinterval{$key}; + } + my %allroles=(); - my %thesepriv=(); - my $now=time; - my $userroles="user.login.time=$now\n"; - my $thesestr; + my %allgroups=(); - if ($rolesdump ne '') { - foreach (split(/&/,$rolesdump)) { - if ($_!~/^rolesdef\&/) { - my ($area,$role)=split(/=/,$_); - $area=~s/\_\w\w$//; - my ($trole,$tend,$tstart)=split(/_/,$role); - $userroles.='user.role.'.$trole.'.'.$area.'='. - $tstart.'.'.$tend."\n"; + for my $area (grep { ! /^rolesdef_/ } keys(%rolesdump)) { + my $role = $rolesdump{$area}; + $area =~ s/\_\w\w$//; + + my ($trole, $tend, $tstart, $group_privs); + + if ($role =~ /^cr/) { + # Custom role, defined by a user + # e.g., user.role.cr/msu/smith/mynewrole + if ($role =~ m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) { + $trole = $1; + ($tend, $tstart) = split('_', $2); + } else { + $trole = $role; + } + } elsif ($role =~ m|^gr/|) { + # Role of member in a group, defined within a course/community + # e.g., user.role.gr/msu/04935610a19ee4a5fmsul1/leopards + ($trole, $tend, $tstart) = split(/_/, $role); + next if $tstart eq '-1'; + ($trole, $group_privs) = split(/\//, $trole); + $group_privs = &unescape($group_privs); + } else { + # Just a normal role, defined in roles.tab + ($trole, $tend, $tstart) = split(/_/,$role); + } + + my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain, + $username); + @userroles{keys(%new_role)} = @new_role{keys(%new_role)}; + + # role expired or not available yet? + $trole = '' if ($tend != 0 && $tend < $userroles{'user.login.time'}) or + ($tstart != 0 && $tstart > $userroles{'user.login.time'}); + + next if $area eq '' or $trole eq ''; + + my $spec = "$trole.$area"; + my ($tdummy, $tdomain, $trest) = split(/\//, $area); + + if ($trole =~ /^cr\//) { + # Custom role, defined by a user + &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area); + } elsif ($trole eq 'gr') { + # Role of a member in a group, defined within a course/community + &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart); + next; + } else { + # Normal role, defined in roles.tab + &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area); + } + + my $cid = $tdomain.'_'.$trest; + unless ($firstaccchk{$cid}) { + if (ref($coursetimerstarts{$cid}) eq 'HASH') { + foreach my $item (keys(%{$coursetimerstarts{$cid}})) { + $firstaccenv{'course.'.$cid.'.firstaccess.'.$item} = + $coursetimerstarts{$cid}{$item}; + } + } + $firstaccchk{$cid} = 1; + } + unless ($timerintchk{$cid}) { + if (ref($coursetimerintervals{$cid}) eq 'HASH') { + foreach my $item (keys(%{$coursetimerintervals{$cid}})) { + $timerintenv{'course.'.$cid.'.timerinterval.'.$item} = + $coursetimerintervals{$cid}{$item}; + } + } + $timerintchk{$cid} = 1; + } + } + + @userroles{'user.author','user.adv','user.rar'} = &set_userprivs(\%userroles, + \%allroles, \%allgroups); + $env{'user.adv'} = $userroles{'user.adv'}; + $env{'user.rar'} = $userroles{'user.rar'}; + + return (\%userroles,\%firstaccenv,\%timerintenv); +} + +sub set_arearole { + my ($trole,$area,$tstart,$tend,$domain,$username,$nolog) = @_; + unless ($nolog) { # log the associated role with the area - &userrolelog($trole,$username,$domain,$area,$tstart,$tend); - if ($tend!=0) { - if ($tend<$now) { - $trole=''; - } + &userrolelog($trole,$username,$domain,$area,$tstart,$tend); + } + return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend); +} + +sub custom_roleprivs { + my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_; + my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole); + my $homsvr = &homeserver($rauthor,$rdomain); + if (&hostname($homsvr) ne '') { + my ($rdummy,$roledef)= + &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor); + if (($rdummy ne 'con_lost') && ($roledef ne '')) { + my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef); + if (defined($syspriv)) { + if ($trest =~ /^$match_community$/) { + $syspriv =~ s/bre\&S//; + } + $$allroles{'cm./'}.=':'.$syspriv; + $$allroles{$spec.'./'}.=':'.$syspriv; } - if ($tstart!=0) { - if ($tstart>$now) { - $trole=''; - } - } - if (($area ne '') && ($trole ne '')) { - my $spec=$trole.'.'.$area; - my ($tdummy,$tdomain,$trest)=split(/\//,$area); - if ($trole =~ /^cr\//) { - my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole); - my $homsvr=homeserver($rauthor,$rdomain); - if ($hostname{$homsvr} ne '') { - my ($rdummy,$roledef)= - &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor); - - if (($rdummy ne 'con_lost') && ($roledef ne '')) { - my ($syspriv,$dompriv,$coursepriv)= - split(/\_/,$roledef); - if (defined($syspriv)) { - $allroles{'cm./'}.=':'.$syspriv; - $allroles{$spec.'./'}.=':'.$syspriv; - } - if ($tdomain ne '') { - if (defined($dompriv)) { - $allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv; - $allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv; - } - if ($trest ne '') { - if (defined($coursepriv)) { - $allroles{'cm.'.$area}.=':'.$coursepriv; - $allroles{$spec.'.'.$area}.=':'.$coursepriv; - } - } - } - } - } - } else { - if (defined($pr{$trole.':s'})) { - $allroles{'cm./'}.=':'.$pr{$trole.':s'}; - $allroles{$spec.'./'}.=':'.$pr{$trole.':s'}; - } - if ($tdomain ne '') { - if (defined($pr{$trole.':d'})) { - $allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'}; - $allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'}; - } - if ($trest ne '') { - if (defined($pr{$trole.':c'})) { - $allroles{'cm.'.$area}.=':'.$pr{$trole.':c'}; - $allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'}; - } - } - } - } + if ($tdomain ne '') { + if (defined($dompriv)) { + $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv; + $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv; + } + if (($trest ne '') && (defined($coursepriv))) { + if ($trole =~ m{^cr/$tdomain/$tdomain\Q-domainconfig\E/([^/]+)$}) { + my $rolename = $1; + $coursepriv = &course_adhocrole_privs($rolename,$tdomain,$trest,$coursepriv); + } + $$allroles{'cm.'.$area}.=':'.$coursepriv; + $$allroles{$spec.'.'.$area}.=':'.$coursepriv; + } } - } } - my $adv=0; - my $author=0; - foreach (keys %allroles) { - %thesepriv=(); - if (($_!~/^st/) && ($_!~/^ta/) && ($_!~/^cm/)) { $adv=1; } - if (($_=~/^au/) || ($_=~/^ca/)) { $author=1; } - foreach (split(/:/,$allroles{$_})) { - if ($_ ne '') { - my ($privilege,$restrictions)=split(/&/,$_); - if ($restrictions eq '') { - $thesepriv{$privilege}='F'; + } +} + +sub course_adhocrole_privs { + my ($rolename,$cdom,$cnum,$coursepriv) = @_; + my %overrides = &get('environment',["internal.adhocpriv.$rolename"],$cdom,$cnum); + if ($overrides{"internal.adhocpriv.$rolename"}) { + my (%currprivs,%storeprivs); + foreach my $item (split(/:/,$coursepriv)) { + my ($priv,$restrict) = split(/\&/,$item); + $currprivs{$priv} = $restrict; + } + my (%possadd,%possremove,%full); + foreach my $item (split(/\:/,$Apache::lonnet::pr{'cr:c'})) { + my ($priv,$restrict)=split(/\&/,$item); + $full{$priv} = $restrict; + } + foreach my $item (split(/,/,$overrides{"internal.adhocpriv.$rolename"})) { + next if ($item eq ''); + my ($rule,$rest) = split(/=/,$item); + next unless (($rule eq 'off') || ($rule eq 'on')); + foreach my $priv (split(/:/,$rest)) { + if ($priv ne '') { + if ($rule eq 'off') { + $possremove{$priv} = 1; + } else { + $possadd{$priv} = 1; + } + } + } + } + foreach my $priv (sort(keys(%full))) { + if (exists($currprivs{$priv})) { + unless (exists($possremove{$priv})) { + $storeprivs{$priv} = $currprivs{$priv}; + } + } elsif (exists($possadd{$priv})) { + $storeprivs{$priv} = $full{$priv}; + } + } + $coursepriv = ':'.join(':',map { $_.'&'.$storeprivs{$_}; } sort(keys(%storeprivs))); + } + return $coursepriv; +} + +sub group_roleprivs { + my ($allgroups,$area,$group_privs,$tend,$tstart) = @_; + my $access = 1; + my $now = time; + if (($tend!=0) && ($tend<$now)) { $access = 0; } + if (($tstart!=0) && ($tstart>$now)) { $access=0; } + if ($access) { + my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|); + $$allgroups{$course}{$group} .=':'.$group_privs; + } +} + +sub standard_roleprivs { + my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_; + if (defined($pr{$trole.':s'})) { + $$allroles{'cm./'}.=':'.$pr{$trole.':s'}; + $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'}; + } + if ($tdomain ne '') { + if (defined($pr{$trole.':d'})) { + $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'}; + $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'}; + } + if (($trest ne '') && (defined($pr{$trole.':c'}))) { + $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'}; + $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'}; + } + } +} + +sub set_userprivs { + my ($userroles,$allroles,$allgroups,$groups_roles) = @_; + my $author=0; + my $adv=0; + my $rar=0; + my %grouproles = (); + if (keys(%{$allgroups}) > 0) { + my @groupkeys; + foreach my $role (keys(%{$allroles})) { + push(@groupkeys,$role); + } + if (ref($groups_roles) eq 'HASH') { + foreach my $key (keys(%{$groups_roles})) { + unless (grep(/^\Q$key\E$/,@groupkeys)) { + push(@groupkeys,$key); + } + } + } + if (@groupkeys > 0) { + foreach my $role (@groupkeys) { + my ($trole,$area,$sec,$extendedarea); + if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) { + $trole = $1; + $area = $2; + $sec = $3; + $extendedarea = $area.$sec; + if (exists($$allgroups{$area})) { + foreach my $group (keys(%{$$allgroups{$area}})) { + my $spec = $trole.'.'.$extendedarea; + $grouproles{$spec.'.'.$area.'/'.$group} = + $$allgroups{$area}{$group}; + } + } + } + } + } + } + foreach my $group (keys(%grouproles)) { + $$allroles{$group} = $grouproles{$group}; + } + foreach my $role (keys(%{$allroles})) { + my %thesepriv; + if (($role=~/^au/) || ($role=~/^ca/) || ($role=~/^aa/)) { $author=1; } + foreach my $item (split(/:/,$$allroles{$role})) { + if ($item ne '') { + my ($privilege,$restrictions)=split(/&/,$item); + if ($restrictions eq '') { + $thesepriv{$privilege}='F'; + } elsif ($thesepriv{$privilege} ne 'F') { + $thesepriv{$privilege}.=$restrictions; + } + if ($thesepriv{'adv'} eq 'F') { $adv=1; } + if ($thesepriv{'rar'} eq 'F') { $rar=1; } + } + } + my $thesestr=''; + foreach my $priv (sort(keys(%thesepriv))) { + $thesestr.=':'.$priv.'&'.$thesepriv{$priv}; + } + $userroles->{'user.priv.'.$role} = $thesestr; + } + return ($author,$adv,$rar); +} + +sub role_status { + my ($rolekey,$update,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_; + if (exists($env{$rolekey}) && $env{$rolekey} ne '') { + my ($one,$two) = split(m{\./},$rolekey,2); + (undef,undef,$$role) = split(/\./,$one,3); + unless (!defined($$role) || $$role eq '') { + $$where = '/'.$two; + $$trolecode=$$role.'.'.$$where; + ($$tstart,$$tend)=split(/\./,$env{$rolekey}); + $$tstatus='is'; + if ($$tstart && $$tstart>$update) { + $$tstatus='future'; + if ($$tstart<$now) { + if ($$tstart && $$tstart>$refresh) { + if (($$where ne '') && ($$role ne '')) { + my (%allroles,%allgroups,$group_privs, + %groups_roles,@rolecodes); + my %userroles = ( + 'user.role.'.$$role.'.'.$$where => $$tstart.'.'.$$tend + ); + @rolecodes = ('cm'); + my $spec=$$role.'.'.$$where; + my ($tdummy,$tdomain,$trest)=split(/\//,$$where); + if ($$role =~ /^cr\//) { + &custom_roleprivs(\%allroles,$$role,$tdomain,$trest,$spec,$$where); + push(@rolecodes,'cr'); + } elsif ($$role eq 'gr') { + push(@rolecodes,$$role); + my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'}, + $env{'user.name'}); + my ($trole) = split('_',$rolehash{$$where.'_'.$$role},2); + (undef,my $group_privs) = split(/\//,$trole); + $group_privs = &unescape($group_privs); + &group_roleprivs(\%allgroups,$$where,$group_privs,$$tend,$$tstart); + my %course_roles = &get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',['active'],['cc','co','in','ta','ep','ad','st','cr'],[$tdomain],1); + &get_groups_roles($tdomain,$trest, + \%course_roles,\@rolecodes, + \%groups_roles); + } else { + push(@rolecodes,$$role); + &standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where); + } + my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%allroles,\%allgroups, + \%groups_roles); + &appenv(\%userroles,\@rolecodes); + &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec); + } + } + $$tstatus = 'is'; + } + } + if ($$tend) { + if ($$tend<$update) { + $$tstatus='expired'; + } elsif ($$tend<$now) { + $$tstatus='will_not'; + } + } + } + } +} + +sub get_groups_roles { + my ($cdom,$rest,$cdom_courseroles,$rolecodes,$groups_roles) = @_; + return unless((ref($cdom_courseroles) eq 'HASH') && + (ref($rolecodes) eq 'ARRAY') && + (ref($groups_roles) eq 'HASH')); + if (keys(%{$cdom_courseroles}) > 0) { + my ($cnum) = ($rest =~ /^($match_courseid)/); + if ($cdom ne '' && $cnum ne '') { + foreach my $key (keys(%{$cdom_courseroles})) { + if ($key =~ /^\Q$cnum\E:\Q$cdom\E:([^:]+):?([^:]*)/) { + my $crsrole = $1; + my $crssec = $2; + if ($crsrole =~ /^cr/) { + unless (grep(/^cr$/,@{$rolecodes})) { + push(@{$rolecodes},'cr'); + } } else { - if ($thesepriv{$privilege} ne 'F') { - $thesepriv{$privilege}.=$restrictions; + unless(grep(/^\Q$crsrole\E$/,@{$rolecodes})) { + push(@{$rolecodes},$crsrole); } } + my $rolekey = "$crsrole./$cdom/$cnum"; + if ($crssec ne '') { + $rolekey .= "/$crssec"; + } + $rolekey .= './'; + $groups_roles->{$rolekey} = $rolecodes; } } - $thesestr=''; - foreach (keys %thesepriv) { $thesestr.=':'.$_.'&'.$thesepriv{$_}; } - $userroles.='user.priv.'.$_.'='.$thesestr."\n"; } - $userroles.='user.adv='.$adv."\n". - 'user.author='.$author."\n"; - $ENV{'user.adv'}=$adv; } - return $userroles; + return; +} + +sub delete_env_groupprivs { + my ($where,$courseroles,$possroles) = @_; + return unless((ref($courseroles) eq 'HASH') && (ref($possroles) eq 'ARRAY')); + my ($dummy,$udom,$uname,$group) = split(/\//,$where); + unless (ref($courseroles->{$udom}) eq 'HASH') { + %{$courseroles->{$udom}} = + &get_my_roles('','','userroles',['active'], + $possroles,[$udom],1); + } + if (ref($courseroles->{$udom}) eq 'HASH') { + foreach my $item (keys(%{$courseroles->{$udom}})) { + my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item); + my $area = '/'.$cdom.'/'.$cnum; + my $privkey = "user.priv.$crsrole.$area"; + if ($crssec ne '') { + $privkey .= '/'.$crssec; + } + $privkey .= ".$area/$group"; + &Apache::lonnet::delenv($privkey,undef,[$crsrole]); + } + } + return; +} + +sub check_adhoc_privs { + my ($cdom,$cnum,$update,$refresh,$now,$checkrole,$caller,$sec) = @_; + my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum; + if ($sec) { + $cckey .= '/'.$sec; + } + my $setprivs; + if ($env{$cckey}) { + my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend); + &role_status($cckey,$update,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend); + unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) { + &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller,$sec); + $setprivs = 1; + } + } else { + &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller,$sec); + $setprivs = 1; + } + return $setprivs; +} + +sub set_adhoc_privileges { +# role can be cc, ca, or cr//-domainconfig/role + my ($dcdom,$pickedcourse,$role,$caller,$sec) = @_; + my $area = '/'.$dcdom.'/'.$pickedcourse; + if ($sec ne '') { + $area .= '/'.$sec; + } + my $spec = $role.'.'.$area; + my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'}, + $env{'user.name'},1); + my %rolehash = (); + if ($role =~ m{^\Qcr/$dcdom/$dcdom\E\-domainconfig/(\w+)$}) { + my $rolename = $1; + &custom_roleprivs(\%rolehash,$role,$dcdom,$pickedcourse,$spec,$area); + my %domdef = &get_domain_defaults($dcdom); + if (ref($domdef{'adhocroles'}) eq 'HASH') { + if (ref($domdef{'adhocroles'}{$rolename}) eq 'HASH') { + &appenv({'request.role.desc' => $domdef{'adhocroles'}{$rolename}{'desc'},}); + } + } + } else { + &standard_roleprivs(\%rolehash,$role,$dcdom,$spec,$pickedcourse,$area); + } + my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%rolehash); + &appenv(\%userroles,[$role,'cm']); + &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec); + unless (($caller eq 'constructaccess' && $env{'request.course.id'}) || + ($caller eq 'tiny')) { + &appenv( {'request.role' => $spec, + 'request.role.domain' => $dcdom, + 'request.course.sec' => $sec, + } + ); + my $tadv=0; + if (&allowed('adv') eq 'F') { $tadv=1; } + &appenv({'request.role.adv' => $tadv}); + } } # --------------------------------------------------------------- get interface @@ -2203,12 +7057,12 @@ sub rolesinit { sub get { my ($namespace,$storearr,$udomain,$uname)=@_; my $items=''; - foreach (@$storearr) { - $items.=escape($_).'&'; + foreach my $item (@$storearr) { + $items.=&escape($item).'&'; } $items=~s/\&$//; - if (!$udomain) { $udomain=$ENV{'user.domain'}; } - if (!$uname) { $uname=$ENV{'user.name'}; } + if (!$udomain) { $udomain=$env{'user.domain'}; } + if (!$uname) { $uname=$env{'user.name'}; } my $uhome=&homeserver($uname,$udomain); my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome); @@ -2218,8 +7072,8 @@ sub get { } my %returnhash=(); my $i=0; - foreach (@$storearr) { - $returnhash{$_}=unescape($pairs[$i]); + foreach my $item (@$storearr) { + $returnhash{$item}=&thaw_unescape($pairs[$i]); $i++; } return %returnhash; @@ -2230,50 +7084,91 @@ sub get { sub del { my ($namespace,$storearr,$udomain,$uname)=@_; my $items=''; - foreach (@$storearr) { - $items.=escape($_).'&'; + foreach my $item (@$storearr) { + $items.=&escape($item).'&'; } + $items=~s/\&$//; - if (!$udomain) { $udomain=$ENV{'user.domain'}; } - if (!$uname) { $uname=$ENV{'user.name'}; } + if (!$udomain) { $udomain=$env{'user.domain'}; } + if (!$uname) { $uname=$env{'user.name'}; } my $uhome=&homeserver($uname,$udomain); - return &reply("del:$udomain:$uname:$namespace:$items",$uhome); } # -------------------------------------------------------------- dump interface +sub unserialize { + my ($rep, $escapedkeys) = @_; + + return {} if $rep =~ /^error/; + + my %returnhash=(); + foreach my $item (split(/\&/,$rep)) { + my ($key, $value) = split(/=/, $item, 2); + $key = unescape($key) unless $escapedkeys; + next if $key =~ /^error: 2 /; + $returnhash{$key} = &thaw_unescape($value); + } + #return %returnhash; + return \%returnhash; +} + +# see Lond::dump_with_regexp +# if $escapedkeys hash keys won't get unescaped. sub dump { - my ($namespace,$udomain,$uname,$regexp)=@_; - if (!$udomain) { $udomain=$ENV{'user.domain'}; } - if (!$uname) { $uname=$ENV{'user.name'}; } - my $uhome=&homeserver($uname,$udomain); - if ($regexp) { - $regexp=&escape($regexp); - } else { - $regexp='.'; - } - my $rep=reply("dump:$udomain:$uname:$namespace:$regexp",$uhome); - my @pairs=split(/\&/,$rep); - my %returnhash=(); - foreach (@pairs) { - my ($key,$value)=split(/=/,$_); - $returnhash{unescape($key)}=unescape($value); - } - return %returnhash; + my ($namespace,$udomain,$uname,$regexp,$range,$escapedkeys)=@_; + if (!$udomain) { $udomain=$env{'user.domain'}; } + if (!$uname) { $uname=$env{'user.name'}; } + my $uhome=&homeserver($uname,$udomain); + + if ($regexp) { + $regexp=&escape($regexp); + } else { + $regexp='.'; + } + if (grep { $_ eq $uhome } current_machine_ids()) { + # user is hosted on this machine + my $reply = LONCAPA::Lond::dump_with_regexp(join(":", ($udomain, + $uname, $namespace, $regexp, $range)), $perlvar{'lonVersion'}); + return %{unserialize($reply, $escapedkeys)}; + } + my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome); + my @pairs=split(/\&/,$rep); + my %returnhash=(); + if (!($rep =~ /^error/ )) { + foreach my $item (@pairs) { + my ($key,$value)=split(/=/,$item,2); + $key = unescape($key) unless $escapedkeys; + #$key = &unescape($key); + next if ($key =~ /^error: 2 /); + $returnhash{$key}=&thaw_unescape($value); + } + } + return %returnhash; +} + + +# --------------------------------------------------------- dumpstore interface + +sub dumpstore { + my ($namespace,$udomain,$uname,$regexp,$range)=@_; + # same as dump but keys must be escaped. They may contain colon separated + # lists of values that may themself contain colons (e.g. symbs). + return &dump($namespace, $udomain, $uname, $regexp, $range, 1); } # -------------------------------------------------------------- keys interface sub getkeys { my ($namespace,$udomain,$uname)=@_; - if (!$udomain) { $udomain=$ENV{'user.domain'}; } - if (!$uname) { $uname=$ENV{'user.name'}; } + if (!$udomain) { $udomain=$env{'user.domain'}; } + if (!$uname) { $uname=$env{'user.name'}; } my $uhome=&homeserver($uname,$udomain); my $rep=reply("keys:$udomain:$uname:$namespace",$uhome); my @keyarray=(); - foreach (split(/\&/,$rep)) { - push (@keyarray,&unescape($_)); + foreach my $key (split(/\&/,$rep)) { + next if ($key =~ /^error: 2 /); + push(@keyarray,&unescape($key)); } return @keyarray; } @@ -2281,30 +7176,38 @@ sub getkeys { # --------------------------------------------------------------- currentdump sub currentdump { my ($courseid,$sdom,$sname)=@_; - $courseid = $ENV{'request.course.id'} if (! defined($courseid)); - $sdom = $ENV{'user.domain'} if (! defined($sdom)); - $sname = $ENV{'user.name'} if (! defined($sname)); + $courseid = $env{'request.course.id'} if (! defined($courseid)); + $sdom = $env{'user.domain'} if (! defined($sdom)); + $sname = $env{'user.name'} if (! defined($sname)); my $uhome = &homeserver($sname,$sdom); - my $rep=reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome); + my $rep; + + if (grep { $_ eq $uhome } current_machine_ids()) { + $rep = LONCAPA::Lond::dump_profile_database(join(":", ($sdom, $sname, + $courseid))); + } else { + $rep = reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome); + } + return if ($rep =~ /^(error:|no_such_host)/); # my %returnhash=(); # - if ($rep eq "unknown_cmd") { + if ($rep eq 'unknown_cmd') { # an old lond will not know currentdump # Do a dump and make it look like a currentdump - my @tmp = &dump($courseid,$sdom,$sname,'.'); + my @tmp = &dumpstore($courseid,$sdom,$sname,'.'); return if ($tmp[0] =~ /^(error:|no_such_host)/); my %hash = @tmp; @tmp=(); %returnhash = %{&convert_dump_to_currentdump(\%hash)}; } else { my @pairs=split(/\&/,$rep); - foreach (@pairs) { - my ($key,$value)=split(/=/,$_); + foreach my $pair (@pairs) { + my ($key,$value)=split(/=/,$pair,2); my ($symb,$param) = split(/:/,$key); $returnhash{&unescape($symb)}->{&unescape($param)} = - &unescape($value); + &thaw_unescape($value); } } return %returnhash; @@ -2318,6 +7221,8 @@ sub convert_dump_to_currentdump{ # we might run in to problems with parameter names =~ /^v\./ while (my ($key,$value) = each(%hash)) { my ($v,$symb,$param) = split(/:/,$key); + $symb = &unescape($symb); + $param = &unescape($param); next if ($v eq 'version' || $symb eq 'keys'); next if (exists($returnhash{$symb}) && exists($returnhash{$symb}->{$param}) && @@ -2337,31 +7242,144 @@ sub convert_dump_to_currentdump{ return \%returnhash; } +# ------------------------------------------------------ critical inc interface + +sub cinc { + return &inc(@_,'critical'); +} + +# --------------------------------------------------------------- inc interface + +sub inc { + my ($namespace,$store,$udomain,$uname,$critical) = @_; + if (!$udomain) { $udomain=$env{'user.domain'}; } + if (!$uname) { $uname=$env{'user.name'}; } + my $uhome=&homeserver($uname,$udomain); + my $items=''; + if (! ref($store)) { + # got a single value, so use that instead + $items = &escape($store).'=&'; + } elsif (ref($store) eq 'SCALAR') { + $items = &escape($$store).'=&'; + } elsif (ref($store) eq 'ARRAY') { + $items = join('=&',map {&escape($_);} @{$store}); + } elsif (ref($store) eq 'HASH') { + while (my($key,$value) = each(%{$store})) { + $items.= &escape($key).'='.&escape($value).'&'; + } + } + $items=~s/\&$//; + if ($critical) { + return &critical("inc:$udomain:$uname:$namespace:$items",$uhome); + } else { + return &reply("inc:$udomain:$uname:$namespace:$items",$uhome); + } +} + # --------------------------------------------------------------- put interface sub put { my ($namespace,$storehash,$udomain,$uname)=@_; - if (!$udomain) { $udomain=$ENV{'user.domain'}; } - if (!$uname) { $uname=$ENV{'user.name'}; } + if (!$udomain) { $udomain=$env{'user.domain'}; } + if (!$uname) { $uname=$env{'user.name'}; } my $uhome=&homeserver($uname,$udomain); my $items=''; - foreach (keys %$storehash) { - $items.=&escape($_).'='.&escape($$storehash{$_}).'&'; + foreach my $item (keys(%$storehash)) { + $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&'; } $items=~s/\&$//; return &reply("put:$udomain:$uname:$namespace:$items",$uhome); } +# ------------------------------------------------------------ newput interface + +sub newput { + my ($namespace,$storehash,$udomain,$uname)=@_; + if (!$udomain) { $udomain=$env{'user.domain'}; } + if (!$uname) { $uname=$env{'user.name'}; } + my $uhome=&homeserver($uname,$udomain); + my $items=''; + foreach my $key (keys(%$storehash)) { + $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&'; + } + $items=~s/\&$//; + return &reply("newput:$udomain:$uname:$namespace:$items",$uhome); +} + +# --------------------------------------------------------- putstore interface + +sub putstore { + my ($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog)=@_; + if (!$udomain) { $udomain=$env{'user.domain'}; } + if (!$uname) { $uname=$env{'user.name'}; } + my $uhome=&homeserver($uname,$udomain); + my $items=''; + foreach my $key (keys(%$storehash)) { + $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&'; + } + $items=~s/\&$//; + my $esc_symb=&escape($symb); + my $esc_v=&escape($version); + my $reply = + &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items", + $uhome); + if (($tolog) && ($reply eq 'ok')) { + my $namevalue=''; + foreach my $key (keys(%{$storehash})) { + $namevalue.=&escape($key).'='.&freeze_escape($storehash->{$key}).'&'; + } + my $ip = &get_requestor_ip(); + $namevalue .= 'ip='.&escape($ip). + '&host='.&escape($perlvar{'lonHostID'}). + '&version='.$esc_v. + '&by='.&escape($env{'user.name'}.':'.$env{'user.domain'}); + &Apache::lonnet::courselog($symb.':'.$uname.':'.$udomain.':PUTSTORE:'.$namevalue); + } + if ($reply eq 'unknown_cmd') { + # gfall back to way things use to be done + return &old_putstore($namespace,$symb,$version,$storehash,$udomain, + $uname); + } + return $reply; +} + +sub old_putstore { + my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_; + if (!$udomain) { $udomain=$env{'user.domain'}; } + if (!$uname) { $uname=$env{'user.name'}; } + my $uhome=&homeserver($uname,$udomain); + my %newstorehash; + foreach my $item (keys(%$storehash)) { + my $key = $version.':'.&escape($symb).':'.$item; + $newstorehash{$key} = $storehash->{$item}; + } + my $items=''; + my %allitems = (); + foreach my $item (keys(%newstorehash)) { + if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) { + my $key = $1.':keys:'.$2; + $allitems{$key} .= $3.':'; + } + $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&'; + } + foreach my $item (keys(%allitems)) { + $allitems{$item} =~ s/\:$//; + $items.= $item.'='.$allitems{$item}.'&'; + } + $items=~s/\&$//; + return &reply("put:$udomain:$uname:$namespace:$items",$uhome); +} + # ------------------------------------------------------ critical put interface sub cput { my ($namespace,$storehash,$udomain,$uname)=@_; - if (!$udomain) { $udomain=$ENV{'user.domain'}; } - if (!$uname) { $uname=$ENV{'user.name'}; } + if (!$udomain) { $udomain=$env{'user.domain'}; } + if (!$uname) { $uname=$env{'user.name'}; } my $uhome=&homeserver($uname,$udomain); my $items=''; - foreach (keys %$storehash) { - $items.=escape($_).'='.escape($$storehash{$_}).'&'; + foreach my $item (keys(%$storehash)) { + $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&'; } $items=~s/\&$//; return &critical("put:$udomain:$uname:$namespace:$items",$uhome); @@ -2372,53 +7390,724 @@ sub cput { sub eget { my ($namespace,$storearr,$udomain,$uname)=@_; my $items=''; - foreach (@$storearr) { - $items.=escape($_).'&'; + foreach my $item (@$storearr) { + $items.=&escape($item).'&'; } $items=~s/\&$//; - if (!$udomain) { $udomain=$ENV{'user.domain'}; } - if (!$uname) { $uname=$ENV{'user.name'}; } + if (!$udomain) { $udomain=$env{'user.domain'}; } + if (!$uname) { $uname=$env{'user.name'}; } my $uhome=&homeserver($uname,$udomain); my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome); my @pairs=split(/\&/,$rep); my %returnhash=(); my $i=0; - foreach (@$storearr) { - $returnhash{$_}=unescape($pairs[$i]); + foreach my $item (@$storearr) { + $returnhash{$item}=&thaw_unescape($pairs[$i]); $i++; } return %returnhash; } -# ---------------------------------------------- Custom access rule evaluation +# ------------------------------------------------------------ tmpput interface +sub tmpput { + my ($storehash,$server,$context)=@_; + my $items=''; + foreach my $item (keys(%$storehash)) { + $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&'; + } + $items=~s/\&$//; + if (defined($context)) { + $items .= ':'.&escape($context); + } + return &reply("tmpput:$items",$server); +} + +# ------------------------------------------------------------ tmpget interface +sub tmpget { + my ($token,$server)=@_; + if (!defined($server)) { $server = $perlvar{'lonHostID'}; } + my $rep=&reply("tmpget:$token",$server); + my %returnhash; + if ($rep =~ /^(con_lost|error|no_such_host)/i) { + return %returnhash; + } + foreach my $item (split(/\&/,$rep)) { + my ($key,$value)=split(/=/,$item); + $returnhash{&unescape($key)}=&thaw_unescape($value); + } + return %returnhash; +} -sub customaccess { - my ($priv,$uri)=@_; - my ($urole,$urealm)=split(/\./,$ENV{'request.role'}); - $urealm=~s/^\W//; - my ($udom,$ucrs,$usec)=split(/\//,$urealm); - my $access=0; - foreach (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) { - my ($effect,$realm,$role)=split(/\:/,$_); - if ($role) { - if ($role ne $urole) { next; } - } - foreach (split(/\s*\,\s*/,$realm)) { - my ($tdom,$tcrs,$tsec)=split(/\_/,$_); - if ($tdom) { - if ($tdom ne $udom) { next; } +# ------------------------------------------------------------ tmpdel interface +sub tmpdel { + my ($token,$server)=@_; + if (!defined($server)) { $server = $perlvar{'lonHostID'}; } + return &reply("tmpdel:$token",$server); +} + +# ------------------------------------------------------------ get_timebased_id + +sub get_timebased_id { + my ($prefix,$keyid,$namespace,$cdom,$cnum,$idtype,$who,$locktries, + $maxtries) = @_; + my ($newid,$error,$dellock); + unless (($prefix =~ /^\w+$/) && ($keyid =~ /^\w+$/) && ($namespace ne '')) { + return ('','ok','invalid call to get suffix'); + } + +# set defaults for any optional args for which values were not supplied + if ($who eq '') { + $who = $env{'user.name'}.':'.$env{'user.domain'}; + } + if (!$locktries) { + $locktries = 3; + } + if (!$maxtries) { + $maxtries = 10; + } + + if (($cdom eq '') || ($cnum eq '')) { + if ($env{'request.course.id'}) { + $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + } + if (($cdom eq '') || ($cnum eq '')) { + return ('','ok','call to get suffix not in course context'); + } + } + +# construct locking item + my $lockhash = { + $prefix."\0".'locked_'.$keyid => $who, + }; + my $tries = 0; + +# attempt to get lock on nohist_$namespace file + my $gotlock = &Apache::lonnet::newput('nohist_'.$namespace,$lockhash,$cdom,$cnum); + while (($gotlock ne 'ok') && $tries <$locktries) { + $tries ++; + sleep 1; + $gotlock = &Apache::lonnet::newput('nohist_'.$namespace,$lockhash,$cdom,$cnum); + } + +# attempt to get unique identifier, based on current timestamp + if ($gotlock eq 'ok') { + my %inuse = &Apache::lonnet::dump('nohist_'.$namespace,$cdom,$cnum,$prefix); + my $id = time; + $newid = $id; + if ($idtype eq 'addcode') { + $newid .= &sixnum_code(); + } + my $idtries = 0; + while (exists($inuse{$prefix."\0".$newid}) && $idtries < $maxtries) { + if ($idtype eq 'concat') { + $newid = $id.$idtries; + } elsif ($idtype eq 'addcode') { + $newid = $newid.&sixnum_code(); + } else { + $newid ++; } - if ($tcrs) { - if ($tcrs ne $ucrs) { next; } + $idtries ++; + } + if (!exists($inuse{$prefix."\0".$newid})) { + my %new_item = ( + $prefix."\0".$newid => $who, + ); + my $putresult = &Apache::lonnet::put('nohist_'.$namespace,\%new_item, + $cdom,$cnum); + if ($putresult ne 'ok') { + undef($newid); + $error = 'error saving new item: '.$putresult; + } + } else { + undef($newid); + $error = ('error: no unique suffix available for the new item '); + } +# remove lock + my @del_lock = ($prefix."\0".'locked_'.$keyid); + $dellock = &Apache::lonnet::del('nohist_'.$namespace,\@del_lock,$cdom,$cnum); + } else { + $error = "error: could not obtain lockfile\n"; + $dellock = 'ok'; + if (($prefix eq 'paste') && ($namespace eq 'courseeditor') && ($keyid eq 'num')) { + $dellock = 'nolock'; + } + } + return ($newid,$dellock,$error); +} + +sub sixnum_code { + my $code; + for (0..6) { + $code .= int( rand(9) ); + } + return $code; +} + +# -------------------------------------------------- portfolio access checking + +sub portfolio_access { + my ($requrl,$clientip) = @_; + my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl); + my $result = &get_portfolio_access($udom,$unum,$file_name,$group,$clientip); + if ($result) { + my %setters; + if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') { + my ($startblock,$endblock) = + &Apache::loncommon::blockcheck(\%setters,'port',$unum,$udom); + if ($startblock && $endblock) { + return 'B'; } - if ($tsec) { - if ($tsec ne $usec) { next; } + } else { + my ($startblock,$endblock) = + &Apache::loncommon::blockcheck(\%setters,'port'); + if ($startblock && $endblock) { + return 'B'; } - $access=($effect eq 'allow'); - last; } - if ($realm eq '' && $role eq '') { - $access=($effect eq 'allow'); + } + if ($result eq 'ok') { + return 'F'; + } elsif ($result =~ /^[^:]+:guest_/) { + return 'A'; + } + return ''; +} + +sub get_portfolio_access { + my ($udom,$unum,$file_name,$group,$clientip,$access_hash) = @_; + + if (!ref($access_hash)) { + my $current_perms = &get_portfile_permissions($udom,$unum); + my %access_controls = &get_access_controls($current_perms,$group, + $file_name); + $access_hash = $access_controls{$file_name}; + } + + my ($public,$guest,@domains,@users,@courses,@groups,@ips); + my $now = time; + if (ref($access_hash) eq 'HASH') { + foreach my $key (keys(%{$access_hash})) { + my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/); + if ($start > $now) { + next; + } + if ($end && $end<$now) { + next; + } + if ($scope eq 'public') { + $public = $key; + last; + } elsif ($scope eq 'guest') { + $guest = $key; + } elsif ($scope eq 'domains') { + push(@domains,$key); + } elsif ($scope eq 'users') { + push(@users,$key); + } elsif ($scope eq 'course') { + push(@courses,$key); + } elsif ($scope eq 'group') { + push(@groups,$key); + } elsif ($scope eq 'ip') { + push(@ips,$key); + } + } + if ($public) { + return 'ok'; + } elsif (@ips > 0) { + my $allowed; + foreach my $ipkey (@ips) { + if (ref($access_hash->{$ipkey}{'ip'}) eq 'ARRAY') { + if (&Apache::loncommon::check_ip_acc(join(',',@{$access_hash->{$ipkey}{'ip'}}),$clientip)) { + $allowed = 1; + last; + } + } + } + if ($allowed) { + return 'ok'; + } + } + if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') { + if ($guest) { + return $guest; + } + } else { + if (@domains > 0) { + foreach my $domkey (@domains) { + if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') { + if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) { + return 'ok'; + } + } + } + } + if (@users > 0) { + foreach my $userkey (@users) { + if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') { + foreach my $item (@{$access_hash->{$userkey}{'users'}}) { + if (ref($item) eq 'HASH') { + if (($item->{'uname'} eq $env{'user.name'}) && + ($item->{'udom'} eq $env{'user.domain'})) { + return 'ok'; + } + } + } + } + } + } + my %roleshash; + my @courses_and_groups = @courses; + push(@courses_and_groups,@groups); + if (@courses_and_groups > 0) { + my (%allgroups,%allroles); + my ($start,$end,$role,$sec,$group); + foreach my $envkey (%env) { + if ($envkey =~ m-^user\.role\.(gr|cc|co|in|ta|ep|ad|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) { + my $cid = $2.'_'.$3; + if ($1 eq 'gr') { + $group = $4; + $allgroups{$cid}{$group} = $env{$envkey}; + } else { + if ($4 eq '') { + $sec = 'none'; + } else { + $sec = $4; + } + $allroles{$cid}{$1}{$sec} = $env{$envkey}; + } + } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) { + my $cid = $2.'_'.$3; + if ($4 eq '') { + $sec = 'none'; + } else { + $sec = $4; + } + $allroles{$cid}{$1}{$sec} = $env{$envkey}; + } + } + if (keys(%allroles) == 0) { + return; + } + foreach my $key (@courses_and_groups) { + my %content = %{$$access_hash{$key}}; + my $cnum = $content{'number'}; + my $cdom = $content{'domain'}; + my $cid = $cdom.'_'.$cnum; + if (!exists($allroles{$cid})) { + next; + } + foreach my $role_id (keys(%{$content{'roles'}})) { + my @sections = @{$content{'roles'}{$role_id}{'section'}}; + my @groups = @{$content{'roles'}{$role_id}{'group'}}; + my @status = @{$content{'roles'}{$role_id}{'access'}}; + my @roles = @{$content{'roles'}{$role_id}{'role'}}; + foreach my $role (keys(%{$allroles{$cid}})) { + if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) { + foreach my $sec (keys(%{$allroles{$cid}{$role}})) { + if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') { + if (grep/^all$/,@sections) { + return 'ok'; + } else { + if (grep/^$sec$/,@sections) { + return 'ok'; + } + } + } + } + if (keys(%{$allgroups{$cid}}) == 0) { + if (grep/^none$/,@groups) { + return 'ok'; + } + } else { + if (grep/^all$/,@groups) { + return 'ok'; + } + foreach my $group (keys(%{$allgroups{$cid}})) { + if (grep/^$group$/,@groups) { + return 'ok'; + } + } + } + } + } + } + } + } + if ($guest) { + return $guest; + } + } + } + return; +} + +sub course_group_datechecker { + my ($dates,$now,$status) = @_; + my ($start,$end) = split(/\./,$dates); + if (!$start && !$end) { + return 'ok'; + } + if (grep/^active$/,@{$status}) { + if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) { + return 'ok'; + } + } + if (grep/^previous$/,@{$status}) { + if ($end > $now ) { + return 'ok'; + } + } + if (grep/^future$/,@{$status}) { + if ($start > $now) { + return 'ok'; + } + } + return; +} + +sub parse_portfolio_url { + my ($url) = @_; + + my ($type,$udom,$unum,$group,$file_name); + + if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) { + $type = 1; + $udom = $1; + $unum = $2; + $file_name = $3; + } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) { + $type = 2; + $udom = $1; + $unum = $2; + $group = $3; + $file_name = $3.'/'.$4; + } + if (wantarray) { + return ($type,$udom,$unum,$file_name,$group); + } + return $type; +} + +sub is_portfolio_url { + my ($url) = @_; + return scalar(&parse_portfolio_url($url)); +} + +sub is_portfolio_file { + my ($file) = @_; + if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) { + return 1; + } + return; +} + +sub usertools_access { + my ($uname,$udom,$tool,$action,$context,$userenvref,$domdefref,$is_advref)=@_; + my ($access,%tools); + if ($context eq '') { + $context = 'tools'; + } + if ($context eq 'requestcourses') { + %tools = ( + official => 1, + unofficial => 1, + community => 1, + textbook => 1, + placement => 1, + lti => 1, + ); + } elsif ($context eq 'requestauthor') { + %tools = ( + requestauthor => 1, + ); + } else { + %tools = ( + aboutme => 1, + blog => 1, + webdav => 1, + portfolio => 1, + ); + } + return if (!defined($tools{$tool})); + + if (($udom eq '') || ($uname eq '')) { + $udom = $env{'user.domain'}; + $uname = $env{'user.name'}; + } + + if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) { + if ($action ne 'reload') { + if ($context eq 'requestcourses') { + return $env{'environment.canrequest.'.$tool}; + } elsif ($context eq 'requestauthor') { + return $env{'environment.canrequest.author'}; + } else { + return $env{'environment.availabletools.'.$tool}; + } + } + } + + my ($toolstatus,$inststatus,$envkey); + if ($context eq 'requestauthor') { + $envkey = $context; + } else { + $envkey = $context.'.'.$tool; + } + + if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) && + ($action ne 'reload')) { + $toolstatus = $env{'environment.'.$envkey}; + $inststatus = $env{'environment.inststatus'}; + } else { + if (ref($userenvref) eq 'HASH') { + $toolstatus = $userenvref->{$envkey}; + $inststatus = $userenvref->{'inststatus'}; + } else { + my %userenv = &userenvironment($udom,$uname,$envkey,'inststatus'); + $toolstatus = $userenv{$envkey}; + $inststatus = $userenv{'inststatus'}; + } + } + + if ($toolstatus ne '') { + if ($toolstatus) { + $access = 1; + } else { + $access = 0; + } + return $access; + } + + my ($is_adv,%domdef); + if (ref($is_advref) eq 'HASH') { + $is_adv = $is_advref->{'is_adv'}; + } else { + $is_adv = &is_advanced_user($udom,$uname); + } + if (ref($domdefref) eq 'HASH') { + %domdef = %{$domdefref}; + } else { + %domdef = &get_domain_defaults($udom); + } + if (ref($domdef{$tool}) eq 'HASH') { + if ($is_adv) { + if ($domdef{$tool}{'_LC_adv'} ne '') { + if ($domdef{$tool}{'_LC_adv'}) { + $access = 1; + } else { + $access = 0; + } + return $access; + } + } + if ($inststatus ne '') { + my ($hasaccess,$hasnoaccess); + foreach my $affiliation (split(/:/,$inststatus)) { + if ($domdef{$tool}{$affiliation} ne '') { + if ($domdef{$tool}{$affiliation}) { + $hasaccess = 1; + } else { + $hasnoaccess = 1; + } + } + } + if ($hasaccess || $hasnoaccess) { + if ($hasaccess) { + $access = 1; + } elsif ($hasnoaccess) { + $access = 0; + } + return $access; + } + } else { + if ($domdef{$tool}{'default'} ne '') { + if ($domdef{$tool}{'default'}) { + $access = 1; + } elsif ($domdef{$tool}{'default'} == 0) { + $access = 0; + } + return $access; + } + } + } else { + if (($context eq 'tools') && ($tool ne 'webdav')) { + $access = 1; + } else { + $access = 0; + } + return $access; + } +} + +sub is_course_owner { + my ($cdom,$cnum,$udom,$uname) = @_; + if (($udom eq '') || ($uname eq '')) { + $udom = $env{'user.domain'}; + $uname = $env{'user.name'}; + } + unless (($udom eq '') || ($uname eq '')) { + if (exists($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'})) { + if ($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'} eq $uname.':'.$udom) { + return 1; + } else { + my %courseinfo = &Apache::lonnet::coursedescription($cdom.'/'.$cnum); + if ($courseinfo{'internal.courseowner'} eq $uname.':'.$udom) { + return 1; + } + } + } + } + return; +} + +sub is_advanced_user { + my ($udom,$uname) = @_; + if ($udom ne '' && $uname ne '') { + if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) { + if (wantarray) { + return ($env{'user.adv'},$env{'user.author'}); + } else { + return $env{'user.adv'}; + } + } + } + my %roleshash = &get_my_roles($uname,$udom,'userroles',undef,undef,undef,1); + my %allroles; + my ($is_adv,$is_author); + foreach my $role (keys(%roleshash)) { + my ($trest,$tdomain,$trole,$sec) = split(/:/,$role); + my $area = '/'.$tdomain.'/'.$trest; + if ($sec ne '') { + $area .= '/'.$sec; + } + if (($area ne '') && ($trole ne '')) { + my $spec=$trole.'.'.$area; + if ($trole =~ /^cr\//) { + &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area); + } elsif ($trole ne 'gr') { + &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area); + } + if ($trole eq 'au') { + $is_author = 1; + } + } + } + foreach my $role (keys(%allroles)) { + last if ($is_adv); + foreach my $item (split(/:/,$allroles{$role})) { + if ($item ne '') { + my ($privilege,$restrictions)=split(/&/,$item); + if ($privilege eq 'adv') { + $is_adv = 1; + last; + } + } + } + } + if (wantarray) { + return ($is_adv,$is_author); + } + return $is_adv; +} + +sub check_can_request { + my ($dom,$can_request,$request_domains,$uname,$udom) = @_; + my $canreq = 0; + if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) { + $uname = $env{'user.name'}; + $udom = $env{'user.domain'}; + } + my ($types,$typename) = &Apache::loncommon::course_types(); + my @options = ('approval','validate','autolimit'); + my $optregex = join('|',@options); + if ((ref($can_request) eq 'HASH') && (ref($types) eq 'ARRAY')) { + foreach my $type (@{$types}) { + if (&usertools_access($uname,$udom,$type,undef, + 'requestcourses')) { + $canreq ++; + if (ref($request_domains) eq 'HASH') { + push(@{$request_domains->{$type}},$udom); + } + if ($dom eq $udom) { + $can_request->{$type} = 1; + } + } + if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '') && + ($env{'environment.reqcrsotherdom.'.$type} ne '')) { + my @curr = split(',',$env{'environment.reqcrsotherdom.'.$type}); + if (@curr > 0) { + foreach my $item (@curr) { + if (ref($request_domains) eq 'HASH') { + my ($otherdom) = ($item =~ /^($match_domain):($optregex)(=?\d*)$/); + if ($otherdom ne '') { + if (ref($request_domains->{$type}) eq 'ARRAY') { + unless (grep(/^\Q$otherdom\E$/,@{$request_domains->{$type}})) { + push(@{$request_domains->{$type}},$otherdom); + } + } else { + push(@{$request_domains->{$type}},$otherdom); + } + } + } + } + unless ($dom eq $env{'user.domain'}) { + $canreq ++; + if (grep(/^\Q$dom\E:($optregex)(=?\d*)$/,@curr)) { + $can_request->{$type} = 1; + } + } + } + } + } + } + return $canreq; +} + +# ---------------------------------------------- Custom access rule evaluation + +sub customaccess { + my ($priv,$uri)=@_; + my ($urole,$urealm)=split(/\./,$env{'request.role'},2); + my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm); + $udom = &LONCAPA::clean_domain($udom); + $ucrs = &LONCAPA::clean_username($ucrs); + my $access=0; + foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) { + my ($effect,$realm,$role,$type)=split(/\:/,$right); + if ($type eq 'user') { + foreach my $scope (split(/\s*\,\s*/,$realm)) { + my ($tdom,$tuname)=split(m{/},$scope); + if ($tdom) { + if ($tdom ne $env{'user.domain'}) { next; } + } + if ($tuname) { + if ($tuname ne $env{'user.name'}) { next; } + } + $access=($effect eq 'allow'); + last; + } + } else { + if ($role) { + if ($role ne $urole) { next; } + } + foreach my $scope (split(/\s*\,\s*/,$realm)) { + my ($tdom,$tcrs,$tsec)=split(/\_/,$scope); + if ($tdom) { + if ($tdom ne $udom) { next; } + } + if ($tcrs) { + if ($tcrs ne $ucrs) { next; } + } + if ($tsec) { + if ($tsec ne $usec) { next; } + } + $access=($effect eq 'allow'); + last; + } + if ($realm eq '' && $role eq '') { + $access=($effect eq 'allow'); + } } } return $access; @@ -2427,39 +8116,92 @@ sub customaccess { # ------------------------------------------------- Check for a user privilege sub allowed { - my ($priv,$uri)=@_; + my ($priv,$uri,$symb,$role,$clientip,$noblockcheck,$ignorecache)=@_; + my $ver_orguri=$uri; $uri=&deversion($uri); my $orguri=$uri; $uri=&declutter($uri); - if (defined($ENV{'allowed.'.$priv})) { return $ENV{'allowed.'.$priv}; } -# Free bre access to adm and meta resources + if ($priv eq 'evb') { +# Evade communication block restrictions for specified role in a course + if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) { + return $1; + } else { + return; + } + } - if ((($uri=~/^adm\//) || ($uri=~/\.meta$/)) && ($priv eq 'bre')) { + if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; } +# Free bre access to adm and meta resources + if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard|viewclasslist|aboutme|ext\.tool)$})) + || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) )) + && ($priv eq 'bre')) { return 'F'; } +# Free bre access to user's own portfolio contents + my ($space,$domain,$name,@dir)=split('/',$uri); + if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) && + ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) { + my %setters; + my ($startblock,$endblock) = + &Apache::loncommon::blockcheck(\%setters,'port'); + if ($startblock && $endblock) { + return 'B'; + } else { + return 'F'; + } + } + +# bre access to group portfolio for rgf priv in group, or mdg or vcg in course. + if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups') + && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) { + if (exists($env{'request.course.id'})) { + my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + if (($domain eq $cdom) && ($name eq $cnum)) { + my $courseprivid=$env{'request.course.id'}; + $courseprivid=~s/\_/\//; + if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid + .'/'.$dir[1]} =~/rgf\&([^\:]*)/) { + return $1; + } else { + if ($env{'request.course.sec'}) { + $courseprivid.='/'.$env{'request.course.sec'}; + } + if ($env{'user.priv.'.$env{'request.role'}.'./'. + $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) { + return $2; + } + } + } + } + } + # Free bre to public access if ($priv eq 'bre') { - my $copyright=&metadata($uri,'copyright'); - if (($copyright eq 'public') && (!$ENV{'request.course.id'})) { + my $copyright; + unless ($uri =~ /ext\.tool/) { + $copyright=&metadata($uri,'copyright'); + } + if (($copyright eq 'public') && (!$env{'request.course.id'})) { return 'F'; } if ($copyright eq 'priv') { $uri=~/([^\/]+)\/([^\/]+)\//; - unless (($ENV{'user.name'} eq $2) && ($ENV{'user.domain'} eq $1)) { + unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) { return ''; } } if ($copyright eq 'domain') { $uri=~/([^\/]+)\/([^\/]+)\//; - unless (($ENV{'user.domain'} eq $1) || - ($ENV{'course.'.$ENV{'request.course.id'}.'.domain'} eq $1)) { + unless (($env{'user.domain'} eq $1) || + ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) { return ''; } } - if ($ENV{'request.role'}=~ /li\.\//) { + if ($env{'request.role'}=~ /li\.\//) { # Library role, so allow browsing of resources in this domain. return 'F'; } @@ -2468,28 +8210,88 @@ sub allowed { } } # Domain coordinator is trying to create a course - if (($priv eq 'ccc') && ($ENV{'request.role'} =~ /^dc\./)) { + if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) { # uri is the requested domain in this case. # comparison to 'request.role.domain' shows if the user has selected - # a role of dc for the domain in question. - return 'F' if ($uri eq $ENV{'request.role.domain'}); + # a role of dc for the domain in question. + return 'F' if ($uri eq $env{'request.role.domain'}); } my $thisallowed=''; my $statecond=0; my $courseprivid=''; + my $ownaccess; + # Community Coordinator or Assistant Co-author browsing resource space. + if (($priv eq 'bro') && ($env{'user.author'})) { + if ($uri eq '') { + $ownaccess = 1; + } else { + if (($env{'user.domain'} ne '') && ($env{'user.name'} ne '')) { + my $udom = $env{'user.domain'}; + my $uname = $env{'user.name'}; + if ($uri =~ m{^\Q$udom\E/?$}) { + $ownaccess = 1; + } elsif ($uri =~ m{^\Q$udom\E/\Q$uname\E/?}) { + unless ($uri =~ m{\.\./}) { + $ownaccess = 1; + } + } elsif (($udom ne 'public') && ($uname ne 'public')) { + my $now = time; + if ($uri =~ m{^([^/]+)/?$}) { + my $adom = $1; + foreach my $key (keys(%env)) { + if ($key =~ m{^user\.role\.(ca|aa)/\Q$adom\E}) { + my ($start,$end) = split('.',$env{$key}); + if (($now >= $start) && (!$end || $end < $now)) { + $ownaccess = 1; + last; + } + } + } + } elsif ($uri =~ m{^([^/]+)/([^/]+)/?}) { + my $adom = $1; + my $aname = $2; + foreach my $role ('ca','aa') { + if ($env{"user.role.$role./$adom/$aname"}) { + my ($start,$end) = + split('.',$env{"user.role.$role./$adom/$aname"}); + if (($now >= $start) && (!$end || $end < $now)) { + $ownaccess = 1; + last; + } + } + } + } + } + } + } + } + # Course - if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'}=~/$priv\&([^\:]*)/) { - $thisallowed.=$1; + if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) { + unless (($priv eq 'bro') && (!$ownaccess)) { + $thisallowed.=$1; + } } # Domain - if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'.(split(/\//,$uri))[0].'/'} - =~/$priv\&([^\:]*)/) { - $thisallowed.=$1; + if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'} + =~/\Q$priv\E\&([^\:]*)/) { + unless (($priv eq 'bro') && (!$ownaccess)) { + $thisallowed.=$1; + } + } + +# User who is not author or co-author might still be able to edit +# resource of an author in the domain (e.g., if Domain Coordinator). + if (($priv eq 'eco') && ($thisallowed eq '') && ($env{'request.course.id'}) && + (&allowed('mdc',$env{'request.course.id'}))) { + if ($env{"user.priv.cm./$uri/"}=~/\Q$priv\E\&([^\:]*)/) { + $thisallowed.=$1; + } } # Course: uri itself is a course @@ -2497,26 +8299,114 @@ sub allowed { $courseuri=~s/\_(\d)/\/$1/; $courseuri=~s/^([^\/])/\/$1/; - if ($ENV{'user.priv.'.$ENV{'request.role'}.'.'.$courseuri} - =~/$priv\&([^\:]*)/) { - $thisallowed.=$1; + if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri} + =~/\Q$priv\E\&([^\:]*)/) { + if ($priv eq 'mip') { + my $rem = $1; + if (($uri ne '') && ($env{'request.course.id'} eq $uri) && + ($env{'course.'.$env{'request.course.id'}.'.internal.courseowner'} eq $env{'user.name'}.':'.$env{'user.domain'})) { + my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + if ($cdom ne '') { + my %passwdconf = &get_passwdconf($cdom); + if (ref($passwdconf{'crsownerchg'}) eq 'HASH') { + if (ref($passwdconf{'crsownerchg'}{'by'}) eq 'ARRAY') { + if (@{$passwdconf{'crsownerchg'}{'by'}}) { + my @inststatuses = split(':',$env{'environment.inststatus'}); + unless (@inststatuses) { + @inststatuses = ('default'); + } + foreach my $status (@inststatuses) { + if (grep(/^\Q$status\E$/,@{$passwdconf{'crsownerchg'}{'by'}})) { + $thisallowed.=$rem; + } + } + } + } + } + } + } + } else { + unless (($priv eq 'bro') && (!$ownaccess)) { + $thisallowed.=$1; + } + } } -# URI is an uploaded document for this course +# URI is an uploaded document for this course, default permissions don't matter +# not allowing 'edit' access (editupload) to uploaded course docs + if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) { + $thisallowed=''; + my ($match)=&is_on_map($uri); + if ($match) { + if ($env{'user.priv.'.$env{'request.role'}.'./'} + =~/\Q$priv\E\&([^\:]*)/) { + my $value = $1; + my $deeplinkblock = &deeplink_check($priv,$symb,$uri); + if ($deeplinkblock) { + $thisallowed='D'; + } elsif ($noblockcheck) { + $thisallowed.=$value; + } else { + my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache); + if (@blockers > 0) { + $thisallowed = 'B'; + } else { + $thisallowed.=$value; + } + } + } + } else { + my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri}; + if ($refuri) { + if ($refuri =~ m|^/adm/|) { + $thisallowed='F'; + } else { + $refuri=&declutter($refuri); + my ($match) = &is_on_map($refuri); + if ($match) { + my $deeplinkblock = &deeplink_check($priv,$symb,$refuri); + if ($deeplinkblock) { + $thisallowed='D'; + } elsif ($noblockcheck) { + $thisallowed='F'; + } else { + my @blockers = &has_comm_blocking($priv,'',$refuri,'',1); + if (@blockers > 0) { + $thisallowed = 'B'; + } else { + $thisallowed='F'; + } + } + } + } + } + } + } - if (($priv eq 'bre') && - ($uri=~/^uploaded\/$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}\/$ENV{'course.'.$ENV{'request.course.id'}.'.num'}/)) { - return 'F'; + if ($priv eq 'bre' + && $thisallowed ne 'F' + && $thisallowed ne '2' + && &is_portfolio_url($uri)) { + $thisallowed = &portfolio_access($uri,$clientip); } -# Full access at system, domain or course-wide level? Exit. +# Full access at system, domain or course-wide level? Exit. if ($thisallowed=~/F/) { return 'F'; } # If this is generating or modifying users, exit with special codes - if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:'=~/\:$priv\:/) { + if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) { + if (($priv eq 'cca') || ($priv eq 'caa')) { + my ($audom,$auname)=split('/',$uri); +# no author name given, so this just checks on the general right to make a co-author in this domain + unless ($auname) { return $thisallowed; } +# an author name is given, so we are about to actually make a co-author for a certain account + if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) || + (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) && + ($audom ne $env{'request.role.domain'}))) { return ''; } + } return $thisallowed; } # @@ -2525,35 +8415,59 @@ sub allowed { # Course: See if uri or referer is an individual resource that is part of # the course - if ($ENV{'request.course.id'}) { + if ($env{'request.course.id'}) { + +# If this is modifying password (internal auth) domains must match for user and user's role. - $courseprivid=$ENV{'request.course.id'}; - if ($ENV{'request.course.sec'}) { - $courseprivid.='/'.$ENV{'request.course.sec'}; + if ($priv eq 'mip') { + if ($env{'user.domain'} eq $env{'request.role.domain'}) { + return $thisallowed; + } else { + return ''; + } + } + + $courseprivid=$env{'request.course.id'}; + if ($env{'request.course.sec'}) { + $courseprivid.='/'.$env{'request.course.sec'}; } $courseprivid=~s/\_/\//; my $checkreferer=1; my ($match,$cond)=&is_on_map($uri); if ($match) { $statecond=$cond; - if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'.$courseprivid} - =~/$priv\&([^\:]*)/) { - $thisallowed.=$1; + if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid} + =~/\Q$priv\E\&([^\:]*)/) { + my $value = $1; + if ($priv eq 'bre') { + if ($noblockcheck) { + $thisallowed.=$value; + } else { + my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache); + if (@blockers > 0) { + $thisallowed = 'B'; + } else { + $thisallowed.=$value; + } + } + } else { + $thisallowed.=$value; + } $checkreferer=0; } } - + if ($checkreferer) { - my $refuri=$ENV{'httpref.'.$orguri}; + my $refuri=$env{'httpref.'.$orguri}; unless ($refuri) { - foreach (keys %ENV) { - if ($_=~/^httpref\..*\*/) { - my $pattern=$_; + foreach my $key (keys(%env)) { + if ($key=~/^httpref\..*\*/) { + my $pattern=$key; $pattern=~s/^httpref\.\/res\///; $pattern=~s/\*/\[\^\/\]\+/g; $pattern=~s/\//\\\//g; if ($orguri=~/$pattern/) { - $refuri=$ENV{$_}; + $refuri=$env{$key}; } } } @@ -2564,9 +8478,26 @@ sub allowed { my ($match,$cond)=&is_on_map($refuri); if ($match) { my $refstatecond=$cond; - if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'.$courseprivid} - =~/$priv\&([^\:]*)/) { - $thisallowed.=$1; + if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid} + =~/\Q$priv\E\&([^\:]*)/) { + my $value = $1; + if ($priv eq 'bre') { + my $deeplinkblock = &deeplink_check($priv,$symb,$refuri); + if ($deeplinkblock) { + $thisallowed = 'D'; + } elsif ($noblockcheck) { + $thisallowed.=$value; + } else { + my @blockers = &has_comm_blocking($priv,'',$refuri,'',1); + if (@blockers > 0) { + $thisallowed = 'B'; + } else { + $thisallowed.=$value; + } + } + } else { + $thisallowed.=$value; + } $uri=$refuri; $statecond=$refstatecond; } @@ -2604,52 +8535,58 @@ sub allowed { my $envkey; if ($thisallowed=~/L/) { - foreach $envkey (keys %ENV) { + foreach $envkey (keys(%env)) { if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) { my $courseid=$2; my $roleid=$1.'.'.$2; $courseid=~s/^\///; my $expiretime=600; - if ($ENV{'request.role'} eq $roleid) { + if ($env{'request.role'} eq $roleid) { $expiretime=120; } my ($cdom,$cnum,$csec)=split(/\//,$courseid); my $prefix='course.'.$cdom.'_'.$cnum.'.'; - if ((time-$ENV{$prefix.'last_cache'})>$expiretime) { - &coursedescription($courseid); + if ((time-$env{$prefix.'last_cache'})>$expiretime) { + &coursedescription($courseid,{'freshen_cache' => 1}); } - if (($ENV{$prefix.'res.'.$uri.'.lock.sections'}=~/\,$csec\,/) - || ($ENV{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) { - if ($ENV{$prefix.'res.'.$uri.'.lock.expire'}>time) { - &log($ENV{'user.domain'},$ENV{'user.name'}, - $ENV{'user.home'}, + if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/) + || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) { + if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) { + &log($env{'user.domain'},$env{'user.name'}, + $env{'user.home'}, 'Locked by res: '.$priv.' for '.$uri.' due to '. $cdom.'/'.$cnum.'/'.$csec.' expire '. - $ENV{$prefix.'priv.'.$priv.'.lock.expire'}); + $env{$prefix.'priv.'.$priv.'.lock.expire'}); return ''; } } - if (($ENV{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,$csec\,/) - || ($ENV{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) { - if ($ENV{'priv.'.$priv.'.lock.expire'}>time) { - &log($ENV{'user.domain'},$ENV{'user.name'}, - $ENV{'user.home'}, + if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/) + || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) { + if ($env{'priv.'.$priv.'.lock.expire'}>time) { + &log($env{'user.domain'},$env{'user.name'}, + $env{'user.home'}, 'Locked by priv: '.$priv.' for '.$uri.' due to '. $cdom.'/'.$cnum.'/'.$csec.' expire '. - $ENV{$prefix.'priv.'.$priv.'.lock.expire'}); + $env{$prefix.'priv.'.$priv.'.lock.expire'}); return ''; } } } } } - + # # Rest of the restrictions depend on selected course # - unless ($ENV{'request.course.id'}) { - return '1'; + unless ($env{'request.course.id'}) { + if ($thisallowed eq 'A') { + return 'A'; + } elsif ($thisallowed eq 'B') { + return 'B'; + } else { + return '1'; + } } # @@ -2660,21 +8597,25 @@ sub allowed { # Course preferences if ($thisallowed=~/C/) { - my $rolecode=(split(/\./,$ENV{'request.role'}))[0]; - my $unamedom=$ENV{'user.name'}.':'.$ENV{'user.domain'}; - if ($ENV{'course.'.$ENV{'request.course.id'}.'.'.$priv.'.roles.denied'} - =~/$rolecode/) { - &log($ENV{'user.domain'},$ENV{'user.name'},$ENV{'user.host'}, - 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '. - $ENV{'request.course.id'}); + my $rolecode=(split(/\./,$env{'request.role'}))[0]; + my $unamedom=$env{'user.name'}.':'.$env{'user.domain'}; + if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'} + =~/\Q$rolecode\E/) { + if (($priv ne 'pch') && ($priv ne 'plc') && ($priv ne 'pac')) { + &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'. + 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '. + $env{'request.course.id'}); + } return ''; } - if ($ENV{'course.'.$ENV{'request.course.id'}.'.'.$priv.'.users.denied'} - =~/$unamedom/) { - &log($ENV{'user.domain'},$ENV{'user.name'},$ENV{'user.host'}, - 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '. - $ENV{'request.course.id'}); + if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'} + =~/\Q$unamedom\E/) { + if (($priv ne 'pch') && ($priv ne 'plc') && ($priv ne 'pac')) { + &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}. + 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '. + $env{'request.course.id'}); + } return ''; } } @@ -2682,20 +8623,22 @@ sub allowed { # Resource preferences if ($thisallowed=~/R/) { - my $rolecode=(split(/\./,$ENV{'request.role'}))[0]; - if (&metadata($uri,'roledeny')=~/$rolecode/) { - &log($ENV{'user.domain'},$ENV{'user.name'},$ENV{'user.host'}, - 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode); - return ''; + my $rolecode=(split(/\./,$env{'request.role'}))[0]; + if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) { + if (($priv ne 'pch') && ($priv ne 'plc')) { + &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'. + 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode); + } + return ''; } } # Restricted by state or randomout? if ($thisallowed=~/X/) { - if ($ENV{'acc.randomout'}) { - my $symb=&symbread($uri,1); - if (($symb) && ($ENV{'acc.randomout'}=~/\&$symb\&/)) { + if ($env{'acc.randomout'}) { + if (!$symb) { $symb=&symbread($uri,1); } + if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) { return ''; } } @@ -2706,21 +8649,452 @@ sub allowed { } } + if ($thisallowed eq 'A') { + return 'A'; + } elsif ($thisallowed eq 'B') { + return 'B'; + } elsif ($thisallowed eq 'D') { + return 'D'; + } return 'F'; } +# ------------------------------------------- Check construction space access + +sub constructaccess { + my ($url,$setpriv)=@_; + +# We do not allow editing of previous versions of files + if ($url=~/\.(\d+)\.(\w+)$/) { return ''; } + +# Get username and domain from URL + my ($ownername,$ownerdomain,$ownerhome); + + ($ownerdomain,$ownername) = + ($url=~ m{^(?:\Q$perlvar{'lonDocRoot'}\E|)(?:/daxepage|/daxeopen)?/priv/($match_domain)/($match_username)(?:/|$)}); + +# The URL does not really point to any authorspace, forget it + unless (($ownername) && ($ownerdomain)) { return ''; } + +# Now we need to see if the user has access to the authorspace of +# $ownername at $ownerdomain + + if (($ownername eq $env{'user.name'}) && ($ownerdomain eq $env{'user.domain'})) { +# Real author for this? + $ownerhome = $env{'user.home'}; + if (exists($env{'user.priv.au./'.$ownerdomain.'/./'})) { + return ($ownername,$ownerdomain,$ownerhome); + } + } else { +# Co-author for this? + if (exists($env{'user.priv.ca./'.$ownerdomain.'/'.$ownername.'./'}) || + exists($env{'user.priv.aa./'.$ownerdomain.'/'.$ownername.'./'}) ) { + $ownerhome = &homeserver($ownername,$ownerdomain); + return ($ownername,$ownerdomain,$ownerhome); + } + if ($env{'request.course.id'}) { + if (($ownername eq $env{'course.'.$env{'request.course.id'}.'.num'}) && + ($ownerdomain eq $env{'course.'.$env{'request.course.id'}.'.domain'})) { + if (&allowed('mdc',$env{'request.course.id'})) { + $ownerhome = $env{'course.'.$env{'request.course.id'}.'.home'}; + return ($ownername,$ownerdomain,$ownerhome); + } + } + } + } + +# We don't have any access right now. If we are not possibly going to do anything about this, +# we might as well leave + unless ($setpriv) { return ''; } + +# Backdoor access? + my $allowed=&allowed('eco',$ownerdomain); +# Nope + unless ($allowed) { return ''; } +# Looks like we may have access, but could be locked by the owner of the construction space + if ($allowed eq 'U') { + my %blocked=&get('environment',['domcoord.author'], + $ownerdomain,$ownername); +# Is blocked by owner + if ($blocked{'domcoord.author'} eq 'blocked') { return ''; } + } + if (($allowed eq 'F') || ($allowed eq 'U')) { +# Grant temporary access + my $then=$env{'user.login.time'}; + my $update=$env{'user.update.time'}; + if (!$update) { $update = $then; } + my $refresh=$env{'user.refresh.time'}; + if (!$refresh) { $refresh = $update; } + my $now = time; + &check_adhoc_privs($ownerdomain,$ownername,$update,$refresh, + $now,'ca','constructaccess'); + $ownerhome = &homeserver($ownername,$ownerdomain); + return($ownername,$ownerdomain,$ownerhome); + } +# No business here + return ''; +} + +# ----------------------------------------------------------- Content Blocking + +{ +# Caches for faster Course Contents display where content blocking +# is in operation (i.e., interval param set) for timed quiz. +# +# User for whom data are being temporarily cached. +my $cacheduser=''; +# Course for which data are being temporarily cached. +my $cachedcid=''; +# Cached blockers for this user (a hash of blocking items). +my %cachedblockers=(); +# When the data were last cached. +my $cachedlast=''; + +sub load_all_blockers { + my ($uname,$udom)=@_; + if (($uname ne '') && ($udom ne '')) { + if (($cacheduser eq $uname.':'.$udom) && + ($cachedcid eq $env{'request.course.id'}) && + (abs($cachedlast-time)<5)) { + return; + } + } + $cachedlast=time; + $cacheduser=$uname.':'.$udom; + $cachedcid=$env{'request.course.id'}; + %cachedblockers = &get_commblock_resources(); + return; +} + +sub get_comm_blocks { + my ($cdom,$cnum) = @_; + if ($cdom eq '' || $cnum eq '') { + return unless ($env{'request.course.id'}); + $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + } + my %commblocks; + my $hashid=$cdom.'_'.$cnum; + my ($blocksref,$cached)=&is_cached_new('comm_block',$hashid); + if ((defined($cached)) && (ref($blocksref) eq 'HASH')) { + %commblocks = %{$blocksref}; + } else { + %commblocks = &Apache::lonnet::dump('comm_block',$cdom,$cnum); + my $cachetime = 600; + &do_cache_new('comm_block',$hashid,\%commblocks,$cachetime); + } + return %commblocks; +} + +sub get_commblock_resources { + my ($blocks) = @_; + my %blockers = (); + return %blockers unless ($env{'request.course.id'}); + return %blockers if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/); + my %commblocks; + if (ref($blocks) eq 'HASH') { + %commblocks = %{$blocks}; + } else { + %commblocks = &get_comm_blocks(); + } + return %blockers unless (keys(%commblocks) > 0); + my $navmap = Apache::lonnavmaps::navmap->new(); + return %blockers unless (ref($navmap)); + my $now = time; + foreach my $block (keys(%commblocks)) { + if ($block =~ /^(\d+)____(\d+)$/) { + my ($start,$end) = ($1,$2); + if ($start <= $now && $end >= $now) { + if (ref($commblocks{$block}{'blocks'}) eq 'HASH') { + if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') { + if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') { + if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) { + $blockers{$block}{maps} = $commblocks{$block}{'blocks'}{'docs'}{'maps'}; + } + } + if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') { + if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) { + $blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'}; + } + } + } + } + } + } elsif ($block =~ /^firstaccess____(.+)$/) { + my $item = $1; + my @to_test; + if (ref($commblocks{$block}{'blocks'}) eq 'HASH') { + if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') { + my @interval; + my $type = 'map'; + if ($item eq 'course') { + $type = 'course'; + @interval=&EXT("resource.0.interval"); + } else { + if ($item =~ /___\d+___/) { + $type = 'resource'; + @interval=&EXT("resource.0.interval",$item); + if (ref($navmap)) { + my $res = $navmap->getBySymb($item); + push(@to_test,$res); + } + } else { + my $mapsymb = &symbread($item,1); + if ($mapsymb) { + if (ref($navmap)) { + my $mapres = $navmap->getBySymb($mapsymb); + if (ref($mapres)) { + my $first = $mapres->map_start(); + my $finish = $mapres->map_finish(); + my $it = $navmap->getIterator($first,$finish,undef,0,0); + if (ref($it)) { + my $res; + while ($res = $it->next(undef,1)) { + next unless (ref($res)); + my $symb = $res->symb(); + next if (($symb eq $mapsymb) || ($symb eq '')); + @interval=&EXT("resource.0.interval",$symb); + if ($interval[1] eq 'map') { + if ($res->answerable()) { + push(@to_test,$res); + last; + } + } + } + } + } + } + } + } + } + if ($interval[0] =~ /^(\d+)/) { + my $timelimit = $1; + my $first_access; + if ($type eq 'resource') { + $first_access=&get_first_access($interval[1],$item); + } elsif ($type eq 'map') { + $first_access=&get_first_access($interval[1],undef,$item); + } else { + $first_access=&get_first_access($interval[1]); + } + if ($first_access) { + my $timesup = $first_access+$timelimit; + if ($timesup > $now) { + my $activeblock; + foreach my $res (@to_test) { + if ($res->answerable()) { + $activeblock = 1; + last; + } + } + if ($activeblock) { + if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') { + if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) { + $blockers{$block}{'maps'} = $commblocks{$block}{'blocks'}{'docs'}{'maps'}; + } + } + if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') { + if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) { + $blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'}; + } + } + } + } + } + } + } + } + } + } + return %blockers; +} + +sub has_comm_blocking { + my ($priv,$symb,$uri,$ignoresymbdb,$noenccheck,$blocked,$blocks) = @_; + my @blockers; + return unless ($env{'request.course.id'}); + return unless ($priv eq 'bre'); + return if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/); + return if ($env{'request.state'} eq 'construct'); + my %blockinfo; + if (ref($blocks) eq 'HASH') { + %blockinfo = &get_commblock_resources($blocks); + } else { + &load_all_blockers($env{'user.name'},$env{'user.domain'}); + %blockinfo = %cachedblockers; + } + return unless (keys(%blockinfo) > 0); + my (%possibles,@symbs); + if (!$symb) { + $symb = &symbread($uri,1,1,1,\%possibles,$ignoresymbdb,$noenccheck); + } + if ($symb) { + @symbs = ($symb); + } elsif (keys(%possibles)) { + @symbs = keys(%possibles); + } + my $noblock; + foreach my $symb (@symbs) { + last if ($noblock); + my ($map,$resid,$resurl)=&decode_symb($symb); + foreach my $block (keys(%blockinfo)) { + if ($block =~ /^firstaccess____(.+)$/) { + my $item = $1; + unless ($blocked) { + if (($item eq $map) || ($item eq $symb)) { + $noblock = 1; + last; + } + } + } + if (ref($blockinfo{$block}) eq 'HASH') { + if (ref($blockinfo{$block}{'resources'}) eq 'HASH') { + if ($blockinfo{$block}{'resources'}{$symb}) { + unless (grep(/^\Q$block\E$/,@blockers)) { + push(@blockers,$block); + } + } + } + if (ref($blockinfo{$block}{'maps'}) eq 'HASH') { + if ($blockinfo{$block}{'maps'}{$map}) { + unless (grep(/^\Q$block\E$/,@blockers)) { + push(@blockers,$block); + } + } + } + } + } + } + unless ($noblock) { + return @blockers; + } + return; +} +} + +sub deeplink_check { + my ($priv,$symb,$uri) = @_; + return unless ($env{'request.course.id'}); + return unless ($priv eq 'bre'); + return if ($env{'request.state'} eq 'construct'); + return if ($env{'request.role.adv'}); + my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + my (%possibles,@symbs); + if (!$symb) { + $symb = &symbread($uri,1,1,1,\%possibles); + } + if ($symb) { + @symbs = ($symb); + } elsif (keys(%possibles)) { + @symbs = keys(%possibles); + } + + my ($login,$switchrole,$allow); + if ($env{'request.deeplink.login'} =~ m{^\Q/tiny/$cdom/\E(\w+)$}) { + my $key = $1; + my $tinyurl; + my ($result,$cached)=&Apache::lonnet::is_cached_new('tiny',$cdom."\0".$key); + if (defined($cached)) { + $tinyurl = $result; + } else { + my $configuname = &Apache::lonnet::get_domainconfiguser($cdom); + my %currtiny = &Apache::lonnet::get('tiny',[$key],$cdom,$configuname); + if ($currtiny{$key} ne '') { + $tinyurl = $currtiny{$key}; + &Apache::lonnet::do_cache_new('tiny',$cdom."\0".$key,$currtiny{$key},600); + } + } + if ($tinyurl ne '') { + my ($cnumreq,$posslogin) = split(/\&/,$tinyurl); + if ($cnumreq eq $cnum) { + $login = $posslogin; + } else { + $switchrole = 1; + } + } + } + foreach my $symb (@symbs) { + last if ($allow); + my $deeplink = &EXT("resource.0.deeplink",$symb); + if ($deeplink eq '') { + $allow = 1; + } else { + my ($listed,$scope,$access) = split(/,/,$deeplink); + if ($access eq 'any') { + $allow = 1; + } elsif ($login) { + if ($access eq 'only') { + if ($scope eq 'res') { + if ($symb eq $login) { + $allow = 1; + } + } elsif ($scope eq 'map') { +#FIXME Compare map for $env{'request.deeplink.login'} with map for $symb + } elsif ($scope eq 'rec') { +#FIXME Recurse up for $env{'request.deeplink.login'} with map for $symb + } + } else { + my ($acctype,$item) = split(/:/,$access); + if (($acctype eq 'lti') && ($env{'user.linkprotector'})) { + if (grep(/^\Q$item\E$/,split(/,/,$env{'user.linkprotector'}))) { + my %tinyurls = &get('tiny',[$symb],$cdom,$cnum); + if (grep(/\Q$tinyurls{$symb}\E$/,split(/,/,$env{'user.linkproturis'}))) { + $allow = 1; + } + } + } elsif (($acctype eq 'key') && ($env{'user.deeplinkkey'})) { + if (grep(/^\Q$item\E$/,split(/,/,$env{'user.deeplinkkey'}))) { + my %tinyurls = &get('tiny',[$symb],$cdom,$cnum); + if (grep(/\Q$tinyurls{$symb}\E$/,split(/,/,$env{'user.keyedlinkuri'}))) { + $allow = 1; + } + } + } + } + } + } + } + return if ($allow); + return 1; +} + +# -------------------------------- Deversion and split uri into path an filename + +# +# Removes the version from a URI and +# splits it in to its filename and path to the filename. +# Seems like File::Basename could have done this more clearly. +# Parameters: +# $uri - input URI +# Returns: +# Two element list consisting of +# $pathname - the URI up to and excluding the trailing / +# $filename - The part of the URI following the last / +# NOTE: +# Another realization of this is simply: +# use File::Basename; +# ... +# $uri = shift; +# $filename = basename($uri); +# $path = dirname($uri); +# return ($filename, $path); +# +# The implementation below is probably faster however. +# +sub split_uri_for_cond { + my $uri=&deversion(&declutter(shift)); + my @uriparts=split(/\//,$uri); + my $filename=pop(@uriparts); + my $pathname=join('/',@uriparts); + return ($pathname,$filename); +} # --------------------------------------------------- Is a resource on the map? sub is_on_map { - my $uri=&declutter(shift); - $uri=~s/\.\d+\.(\w+)$/\.$1/; - my @uriparts=split(/\//,$uri); - my $filename=$uriparts[$#uriparts]; - my $pathname=$uri; - $pathname=~s|/\Q$filename\E$||; - $pathname=~s/^adm\/wrapper\///; + my ($pathname,$filename) = &split_uri_for_cond(shift); #Trying to find the conditional for the file - my $match=($ENV{'acc.res.'.$ENV{'request.course.id'}.'.'.$pathname}=~ + my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~ /\&\Q$filename\E\:([\d\|]+)\&/); if ($match) { return (1,$1); @@ -2739,7 +9113,7 @@ sub get_symb_from_alias { # Must be an alias my $aliassymb=''; my %bighash; - if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db', + if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db', &GDBM_READER(),0640)) { my $rid=$bighash{'mapalias_'.$symb}; if ($rid) { @@ -2756,39 +9130,47 @@ sub get_symb_from_alias { sub definerole { if (allowed('mcr','/')) { - my ($rolename,$sysrole,$domrole,$courole)=@_; - foreach (split(':',$sysrole)) { - my ($crole,$cqual)=split(/\&/,$_); - if ($pr{'cr:s'}!~/$crole/) { return "refused:s:$crole"; } - if ($pr{'cr:s'}=~/$crole\&/) { - if ($pr{'cr:s'}!~/$crole\&\w*$cqual/) { + my ($rolename,$sysrole,$domrole,$courole,$uname,$udom)=@_; + foreach my $role (split(':',$sysrole)) { + my ($crole,$cqual)=split(/\&/,$role); + if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; } + if ($pr{'cr:s'}=~/\Q$crole\E\&/) { + if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) { return "refused:s:$crole&$cqual"; } } } - foreach (split(':',$domrole)) { - my ($crole,$cqual)=split(/\&/,$_); - if ($pr{'cr:d'}!~/$crole/) { return "refused:d:$crole"; } - if ($pr{'cr:d'}=~/$crole\&/) { - if ($pr{'cr:d'}!~/$crole\&\w*$cqual/) { + foreach my $role (split(':',$domrole)) { + my ($crole,$cqual)=split(/\&/,$role); + if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; } + if ($pr{'cr:d'}=~/\Q$crole\E\&/) { + if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) { return "refused:d:$crole&$cqual"; } } } - foreach (split(':',$courole)) { - my ($crole,$cqual)=split(/\&/,$_); - if ($pr{'cr:c'}!~/$crole/) { return "refused:c:$crole"; } - if ($pr{'cr:c'}=~/$crole\&/) { - if ($pr{'cr:c'}!~/$crole\&\w*$cqual/) { + foreach my $role (split(':',$courole)) { + my ($crole,$cqual)=split(/\&/,$role); + if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; } + if ($pr{'cr:c'}=~/\Q$crole\E\&/) { + if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) { return "refused:c:$crole&$cqual"; } } } - my $command="encrypt:rolesput:$ENV{'user.domain'}:$ENV{'user.name'}:". - "$ENV{'user.domain'}:$ENV{'user.name'}:". - "rolesdef_$rolename=". + my $uhome; + if (($uname ne '') && ($udom ne '')) { + $uhome = &homeserver($uname,$udom); + return $uhome if ($uhome eq 'no_host'); + } else { + $uname = $env{'user.name'}; + $udom = $env{'user.domain'}; + $uhome = $env{'user.home'}; + } + my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:". + "$udom:$uname:rolesdef_$rolename=". escape($sysrole.'_'.$domrole.'_'.$courole); - return reply($command,$ENV{'user.home'}); + return reply($command,$uhome); } else { return 'refused'; } @@ -2797,18 +9179,23 @@ sub definerole { # ---------------- Make a metadata query against the network of library servers sub metadata_query { - my ($query,$custom,$customshow,$server_array)=@_; + my ($query,$custom,$customshow,$server_array,$domains_hash)=@_; my %rhash; + my %libserv = &all_library(); my @server_list = (defined($server_array) ? @$server_array : keys(%libserv) ); for my $server (@server_list) { + my $domains = ''; + if (ref($domains_hash) eq 'HASH') { + $domains = $domains_hash->{$server}; + } unless ($custom or $customshow) { - my $reply=&reply("querysend:".&escape($query),$server); + my $reply=&reply("querysend:".&escape($query).':::'.&escape($domains),$server); $rhash{$server}=$reply; } else { my $reply=&reply("querysend:".&escape($query).':'. - &escape($custom).':'.&escape($customshow), + &escape($custom).':'.&escape($customshow).':'.&escape($domains), $server); $rhash{$server}=$reply; } @@ -2822,24 +9209,132 @@ sub log_query { my ($uname,$udom,$query,%filters)=@_; my $uhome=&homeserver($uname,$udom); if ($uhome eq 'no_host') { return 'error: no_host'; } - my $uhost=$hostname{$uhome}; - my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys %filters)); + my $uhost=&hostname($uhome); + my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters))); my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command, $uhome); - unless ($queryid=~/^$uhost\_/) { return 'error: '.$queryid; } + unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; } return get_query_reply($queryid); } +# -------------------------- Update MySQL table for portfolio file + +sub update_portfolio_table { + my ($uname,$udom,$file_name,$query,$group,$action) = @_; + if ($group ne '') { + $file_name =~s /^\Q$group\E//; + } + my $homeserver = &homeserver($uname,$udom); + my $queryid= + &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group). + ':'.&escape($file_name).':'.$action,$homeserver); + my $reply = &get_query_reply($queryid); + return $reply; +} + +# -------------------------- Update MySQL allusers table + +sub update_allusers_table { + my ($uname,$udom,$names) = @_; + my $homeserver = &homeserver($uname,$udom); + my $queryid= + &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'. + 'lastname='.&escape($names->{'lastname'}).'%%'. + 'firstname='.&escape($names->{'firstname'}).'%%'. + 'middlename='.&escape($names->{'middlename'}).'%%'. + 'generation='.&escape($names->{'generation'}).'%%'. + 'permanentemail='.&escape($names->{'permanentemail'}).'%%'. + 'id='.&escape($names->{'id'}),$homeserver); + return; +} + +# ------- Request retrieval of institutional classlists for course(s) + +sub fetch_enrollment_query { + my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_; + my ($homeserver,$sleep,$loopmax); + my $maxtries = 1; + if ($context eq 'automated') { + $homeserver = $perlvar{'lonHostID'}; + $sleep = 2; + $loopmax = 100; + $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout + } else { + $homeserver = &homeserver($cnum,$dom); + } + my $host=&hostname($homeserver); + my $cmd = ''; + foreach my $affiliate (keys(%{$affiliatesref})) { + $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%'; + } + $cmd =~ s/%%$//; + $cmd = &escape($cmd); + my $query = 'fetchenrollment'; + my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver); + unless ($queryid=~/^\Q$host\E\_/) { + &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum); + return 'error: '.$queryid; + } + my $reply = &get_query_reply($queryid,$sleep,$loopmax); + my $tries = 1; + while (($reply=~/^timeout/) && ($tries < $maxtries)) { + $reply = &get_query_reply($queryid,$sleep,$loopmax); + $tries ++; + } + if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) { + &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries); + } else { + my @responses = split(/:/,$reply); + if (grep { $_ eq $homeserver } ¤t_machine_ids()) { + foreach my $line (@responses) { + my ($key,$value) = split(/=/,$line,2); + $$replyref{$key} = $value; + } + } else { + my $pathname = LONCAPA::tempdir(); + foreach my $line (@responses) { + my ($key,$value) = split(/=/,$line); + $$replyref{$key} = $value; + if ($value > 0) { + foreach my $item (@{$$affiliatesref{$key}}) { + my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml'; + my $destname = $pathname.'/'.$filename; + my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver); + if ($xml_classlist =~ /^error/) { + &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum); + } else { + if ( open(FILE,">",$destname) ) { + print FILE &unescape($xml_classlist); + close(FILE); + } else { + &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum); + } + } + } + } + } + } + return 'ok'; + } + return 'error'; +} + sub get_query_reply { - my $queryid=shift; - my $replyfile=$perlvar{'lonDaemons'}.'/tmp/'.$queryid; + my ($queryid,$sleep,$loopmax) = @_;; + if (($sleep eq '') || ($sleep !~ /^\d+\.?\d*$/)) { + $sleep = 0.2; + } + if (($loopmax eq '') || ($loopmax =~ /\D/)) { + $loopmax = 100; + } + my $replyfile=LONCAPA::tempdir().$queryid; my $reply=''; - for (1..100) { - sleep 2; + for (1..$loopmax) { + sleep($sleep); if (-e $replyfile.'.end') { - if (my $fh=Apache::File->new($replyfile)) { - $reply.=<$fh>; - $fh->close; + if (open(my $fh,"<",$replyfile)) { + $reply = join('',<$fh>); + close($fh); } else { return 'error: reply_file_error'; } return &unescape($reply); } @@ -2858,56 +9353,879 @@ sub courselog_query { # end: timestamp # my (%filters)=@_; - unless ($ENV{'request.course.id'}) { return 'no_course'; } + unless ($env{'request.course.id'}) { return 'no_course'; } if ($filters{'url'}) { $filters{'url'}=&symbclean(&declutter($filters{'url'})); $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/; $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/; } - my $cname=$ENV{'course.'.$ENV{'request.course.id'}.'.num'}; - my $cdom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}; + my $cname=$env{'course.'.$env{'request.course.id'}.'.num'}; + my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'}; return &log_query($cname,$cdom,'courselog',%filters); } sub userlog_query { +# +# possible filters: +# action: log check role +# start: timestamp +# end: timestamp +# my ($uname,$udom,%filters)=@_; return &log_query($uname,$udom,'userlog',%filters); } +#--------- Call auto-enrollment subs in localenroll.pm for homeserver for course + +sub auto_run { + my ($cnum,$cdom) = @_; + my $response = 0; + my $settings; + my %domconfig = &get_dom('configuration',['autoenroll'],$cdom); + if (ref($domconfig{'autoenroll'}) eq 'HASH') { + $settings = $domconfig{'autoenroll'}; + if ($settings->{'run'} eq '1') { + $response = 1; + } + } else { + my $homeserver; + if (&is_course($cdom,$cnum)) { + $homeserver = &homeserver($cnum,$cdom); + } else { + $homeserver = &domain($cdom,'primary'); + } + if ($homeserver ne 'no_host') { + $response = &reply('autorun:'.$cdom,$homeserver); + } + } + return $response; +} + +sub auto_get_sections { + my ($cnum,$cdom,$inst_coursecode) = @_; + my $homeserver; + if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) { + $homeserver = &homeserver($cnum,$cdom); + } + if (!defined($homeserver)) { + if ($cdom =~ /^$match_domain$/) { + $homeserver = &domain($cdom,'primary'); + } + } + my @secs; + if (defined($homeserver)) { + my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver)); + unless ($response eq 'refused') { + @secs = split(/:/,$response); + } + } + return @secs; +} + +sub auto_new_course { + my ($cnum,$cdom,$inst_course_id,$owner,$coowners) = @_; + my $homeserver = &homeserver($cnum,$cdom); + my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.&escape($owner).':'.$cdom.':'.&escape($coowners),$homeserver)); + return $response; +} + +sub auto_validate_courseID { + my ($cnum,$cdom,$inst_course_id) = @_; + my $homeserver = &homeserver($cnum,$cdom); + my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver)); + return $response; +} + +sub auto_validate_instcode { + my ($cnum,$cdom,$instcode,$owner) = @_; + my ($homeserver,$response); + if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) { + $homeserver = &homeserver($cnum,$cdom); + } + if (!defined($homeserver)) { + if ($cdom =~ /^$match_domain$/) { + $homeserver = &domain($cdom,'primary'); + } + } + $response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'. + &escape($instcode).':'.&escape($owner),$homeserver)); + my ($outcome,$description,$defaultcredits) = map { &unescape($_); } split('&',$response,3); + return ($outcome,$description,$defaultcredits); +} + +sub auto_validate_inst_crosslist { + my ($cnum,$cdom,$instcode,$inst_xlist,$coowner) = @_; + my ($homeserver,$response); + if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) { + $homeserver = &homeserver($cnum,$cdom); + } + if (!defined($homeserver)) { + if ($cdom =~ /^$match_domain$/) { + $homeserver = &domain($cdom,'primary'); + } + } + unless (($homeserver eq '') || ($homeserver eq 'no_host')) { + $response=&reply('autovalidateinstcrosslist:'.$cdom.':'. + &escape($instcode).':'.&escape($inst_xlist).':'. + &escape($coowner),$homeserver); + } + return $response; +} + +sub auto_create_password { + my ($cnum,$cdom,$authparam,$udom) = @_; + my ($homeserver,$response); + my $create_passwd = 0; + my $authchk = ''; + if ($udom =~ /^$match_domain$/) { + $homeserver = &domain($udom,'primary'); + } + if ($homeserver eq '') { + if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) { + $homeserver = &homeserver($cnum,$cdom); + } + } + if ($homeserver eq '') { + $authchk = 'nodomain'; + } else { + $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver)); + if ($response eq 'refused') { + $authchk = 'refused'; + } else { + ($authparam,$create_passwd,$authchk) = split(/:/,$response); + } + } + return ($authparam,$create_passwd,$authchk); +} + +sub auto_photo_permission { + my ($cnum,$cdom,$students) = @_; + my $homeserver = &homeserver($cnum,$cdom); + my ($outcome,$perm_reqd,$conditions) = + split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3); + if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) { + return (undef,undef); + } + return ($outcome,$perm_reqd,$conditions); +} + +sub auto_checkphotos { + my ($uname,$udom,$pid) = @_; + my $homeserver = &homeserver($uname,$udom); + my ($result,$resulttype); + my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'. + &escape($uname).':'.&escape($pid), + $homeserver)); + if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) { + return (undef,undef); + } + if ($outcome) { + ($result,$resulttype) = split(/:/,$outcome); + } + return ($result,$resulttype); +} + +sub auto_photochoice { + my ($cnum,$cdom) = @_; + my $homeserver = &homeserver($cnum,$cdom); + my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'. + &escape($cdom), + $homeserver))); + if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) { + return (undef,undef); + } + return ($update,$comment); +} + +sub auto_photoupdate { + my ($affiliatesref,$dom,$cnum,$photo) = @_; + my $homeserver = &homeserver($cnum,$dom); + my $host=&hostname($homeserver); + my $cmd = ''; + my $maxtries = 1; + foreach my $affiliate (keys(%{$affiliatesref})) { + $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%'; + } + $cmd =~ s/%%$//; + $cmd = &escape($cmd); + my $query = 'institutionalphotos'; + my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver); + unless ($queryid=~/^\Q$host\E\_/) { + &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum); + return 'error: '.$queryid; + } + my $reply = &get_query_reply($queryid); + my $tries = 1; + while (($reply=~/^timeout/) && ($tries < $maxtries)) { + $reply = &get_query_reply($queryid); + $tries ++; + } + if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) { + &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries); + } else { + my @responses = split(/:/,$reply); + my $outcome = shift(@responses); + foreach my $item (@responses) { + my ($key,$value) = split(/=/,$item); + $$photo{$key} = $value; + } + return $outcome; + } + return 'error'; +} + +sub auto_instcode_format { + my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles, + $cat_order) = @_; + my $courses = ''; + my @homeservers; + if ($caller eq 'global') { + my %servers = &get_servers($codedom,'library'); + foreach my $tryserver (keys(%servers)) { + if (!grep(/^\Q$tryserver\E$/,@homeservers)) { + push(@homeservers,$tryserver); + } + } + } elsif ($caller eq 'requests') { + if ($codedom =~ /^$match_domain$/) { + my $chome = &domain($codedom,'primary'); + unless ($chome eq 'no_host') { + push(@homeservers,$chome); + } + } + } else { + push(@homeservers,&homeserver($caller,$codedom)); + } + foreach my $code (keys(%{$instcodes})) { + $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&'; + } + chop($courses); + my $ok_response = 0; + my $response; + while (@homeservers > 0 && $ok_response == 0) { + my $server = shift(@homeservers); + $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server); + if ($response !~ /(con_lost|error|no_such_host|refused)/) { + my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) = + split(/:/,$response); + %{$codes} = (%{$codes},&str2hash($codes_str)); + push(@{$codetitles},&str2array($codetitles_str)); + %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str)); + %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str)); + $ok_response = 1; + } + } + if ($ok_response) { + return 'ok'; + } else { + return $response; + } +} + +sub auto_instcode_defaults { + my ($domain,$returnhash,$code_order) = @_; + my @homeservers; + + my %servers = &get_servers($domain,'library'); + foreach my $tryserver (keys(%servers)) { + if (!grep(/^\Q$tryserver\E$/,@homeservers)) { + push(@homeservers,$tryserver); + } + } + + my $response; + foreach my $server (@homeservers) { + $response=&reply('autoinstcodedefaults:'.$domain,$server); + next if ($response =~ /(con_lost|error|no_such_host|refused)/); + + foreach my $pair (split(/\&/,$response)) { + my ($name,$value)=split(/\=/,$pair); + if ($name eq 'code_order') { + @{$code_order} = split(/\&/,&unescape($value)); + } else { + $returnhash->{&unescape($name)}=&unescape($value); + } + } + return 'ok'; + } + + return $response; +} + +sub auto_possible_instcodes { + my ($domain,$codetitles,$cat_titles,$cat_orders,$code_order) = @_; + unless ((ref($codetitles) eq 'ARRAY') && (ref($cat_titles) eq 'HASH') && + (ref($cat_orders) eq 'HASH') && (ref($code_order) eq 'ARRAY')) { + return; + } + my (@homeservers,$uhome); + if (defined(&domain($domain,'primary'))) { + $uhome=&domain($domain,'primary'); + push(@homeservers,&domain($domain,'primary')); + } else { + my %servers = &get_servers($domain,'library'); + foreach my $tryserver (keys(%servers)) { + if (!grep(/^\Q$tryserver\E$/,@homeservers)) { + push(@homeservers,$tryserver); + } + } + } + my $response; + foreach my $server (@homeservers) { + $response=&reply('autopossibleinstcodes:'.$domain,$server); + next if ($response =~ /(con_lost|error|no_such_host|refused)/); + my ($codetitlestr,$codeorderstr,$cat_title,$cat_order) = + split(':',$response); + @{$codetitles} = map { &unescape($_); } (split('&',$codetitlestr)); + @{$code_order} = map { &unescape($_); } (split('&',$codeorderstr)); + foreach my $item (split('&',$cat_title)) { + my ($name,$value)=split('=',$item); + $cat_titles->{&unescape($name)}=&thaw_unescape($value); + } + foreach my $item (split('&',$cat_order)) { + my ($name,$value)=split('=',$item); + $cat_orders->{&unescape($name)}=&thaw_unescape($value); + } + return 'ok'; + } + return $response; +} + +sub auto_courserequest_checks { + my ($dom) = @_; + my ($homeserver,%validations); + if ($dom =~ /^$match_domain$/) { + $homeserver = &domain($dom,'primary'); + } + unless ($homeserver eq 'no_host') { + my $response=&reply('autocrsreqchecks:'.$dom,$homeserver); + unless ($response =~ /(con_lost|error|no_such_host|refused)/) { + my @items = split(/&/,$response); + foreach my $item (@items) { + my ($key,$value) = split('=',$item); + $validations{&unescape($key)} = &thaw_unescape($value); + } + } + } + return %validations; +} + +sub auto_courserequest_validation { + my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist,$custominfo) = @_; + my ($homeserver,$response); + if ($dom =~ /^$match_domain$/) { + $homeserver = &domain($dom,'primary'); + } + unless ($homeserver eq 'no_host') { + my $customdata; + if (ref($custominfo) eq 'HASH') { + $customdata = &freeze_escape($custominfo); + } + $response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner). + ':'.&escape($crstype).':'.&escape($inststatuslist). + ':'.&escape($instcode).':'.&escape($instseclist).':'. + $customdata,$homeserver)); + } + return $response; +} + +sub auto_validate_class_sec { + my ($cdom,$cnum,$owners,$inst_class) = @_; + my $homeserver = &homeserver($cnum,$cdom); + my $ownerlist; + if (ref($owners) eq 'ARRAY') { + $ownerlist = join(',',@{$owners}); + } else { + $ownerlist = $owners; + } + my $response=&reply('autovalidateclass_sec:'.$inst_class.':'. + &escape($ownerlist).':'.$cdom,$homeserver); + return $response; +} + +sub auto_validate_instclasses { + my ($cdom,$cnum,$owners,$classesref) = @_; + my ($homeserver,%validations); + $homeserver = &homeserver($cnum,$cdom); + unless ($homeserver eq 'no_host') { + my $ownerlist; + if (ref($owners) eq 'ARRAY') { + $ownerlist = join(',',@{$owners}); + } else { + $ownerlist = $owners; + } + if (ref($classesref) eq 'HASH') { + my $classes = &freeze_escape($classesref); + my $response=&reply('autovalidateinstclasses:'.&escape($ownerlist). + ':'.$cdom.':'.$classes,$homeserver); + unless ($response =~ /(con_lost|error|no_such_host|refused)/) { + my @items = split(/&/,$response); + foreach my $item (@items) { + my ($key,$value) = split('=',$item); + $validations{&unescape($key)} = &thaw_unescape($value); + } + } + } + } + return %validations; +} + +sub auto_crsreq_update { + my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title, + $code,$accessstart,$accessend,$inbound) = @_; + my ($homeserver,%crsreqresponse); + if ($cdom =~ /^$match_domain$/) { + $homeserver = &domain($cdom,'primary'); + } + unless (($homeserver eq 'no_host') || ($homeserver eq '')) { + my $info; + if (ref($inbound) eq 'HASH') { + $info = &freeze_escape($inbound); + } + my $response=&reply('autocrsrequpdate:'.$cdom.':'.$cnum.':'.&escape($crstype). + ':'.&escape($action).':'.&escape($ownername).':'. + &escape($ownerdomain).':'.&escape($fullname).':'. + &escape($title).':'.&escape($code).':'. + &escape($accessstart).':'.&escape($accessend).':'.$info, + $homeserver); + unless ($response =~ /(con_lost|error|no_such_host|refused)/) { + my @items = split(/&/,$response); + foreach my $item (@items) { + my ($key,$value) = split('=',$item); + $crsreqresponse{&unescape($key)} = &thaw_unescape($value); + } + } + } + return \%crsreqresponse; +} + +sub auto_export_grades { + my ($cdom,$cnum,$inforef,$gradesref) = @_; + my ($homeserver,%exportresponse); + if ($cdom =~ /^$match_domain$/) { + $homeserver = &domain($cdom,'primary'); + } + unless (($homeserver eq 'no_host') || ($homeserver eq '')) { + my $info; + if (ref($inforef) eq 'HASH') { + $info = &freeze_escape($inforef); + } + if (ref($gradesref) eq 'HASH') { + my $grades = &freeze_escape($gradesref); + my $response=&reply('encrypt:autoexportgrades:'.$cdom.':'.$cnum.':'. + $info.':'.$grades,$homeserver); + unless ($response =~ /(con_lost|error|no_such_host|refused|unknown_command)/) { + my @items = split(/&/,$response); + foreach my $item (@items) { + my ($key,$value) = split('=',$item); + $exportresponse{&unescape($key)} = &thaw_unescape($value); + } + } + } + } + return \%exportresponse; +} + +sub check_instcode_cloning { + my ($codedefaults,$code_order,$cloner,$clonefromcode,$clonetocode) = @_; + unless ((ref($codedefaults) eq 'HASH') && (ref($code_order) eq 'ARRAY')) { + return; + } + my $canclone; + if (@{$code_order} > 0) { + my $instcoderegexp ='^'; + my @clonecodes = split(/\&/,$cloner); + foreach my $item (@{$code_order}) { + if (grep(/^\Q$item\E=/,@clonecodes)) { + foreach my $pair (@clonecodes) { + my ($key,$val) = split(/\=/,$pair,2); + $val = &unescape($val); + if ($key eq $item) { + $instcoderegexp .= '('.$val.')'; + last; + } + } + } else { + $instcoderegexp .= $codedefaults->{$item}; + } + } + $instcoderegexp .= '$'; + my (@from,@to); + eval { + (@from) = ($clonefromcode =~ /$instcoderegexp/); + (@to) = ($clonetocode =~ /$instcoderegexp/); + }; + if ((@from > 0) && (@to > 0)) { + my @diffs = &Apache::loncommon::compare_arrays(\@from,\@to); + if (!@diffs) { + $canclone = 1; + } + } + } + return $canclone; +} + +sub default_instcode_cloning { + my ($clonedom,$domdefclone,$clonefromcode,$clonetocode,$codedefaultsref,$codeorderref) = @_; + my (%codedefaults,@code_order,$canclone); + if ((ref($codedefaultsref) eq 'HASH') && (ref($codeorderref) eq 'ARRAY')) { + %codedefaults = %{$codedefaultsref}; + @code_order = @{$codeorderref}; + } elsif ($clonedom) { + &auto_instcode_defaults($clonedom,\%codedefaults,\@code_order); + } + if (($domdefclone) && (@code_order)) { + my @clonecodes = split(/\+/,$domdefclone); + my $instcoderegexp ='^'; + foreach my $item (@code_order) { + if (grep(/^\Q$item\E$/,@clonecodes)) { + $instcoderegexp .= '('.$codedefaults{$item}.')'; + } else { + $instcoderegexp .= $codedefaults{$item}; + } + } + $instcoderegexp .= '$'; + my (@from,@to); + eval { + (@from) = ($clonefromcode =~ /$instcoderegexp/); + (@to) = ($clonetocode =~ /$instcoderegexp/); + }; + if ((@from > 0) && (@to > 0)) { + my @diffs = &Apache::loncommon::compare_arrays(\@from,\@to); + if (!@diffs) { + $canclone = 1; + } + } + } + return $canclone; +} + +# ------------------------------------------------------- Course Group routines + +sub get_coursegroups { + my ($cdom,$cnum,$group,$namespace) = @_; + return(&dump($namespace,$cdom,$cnum,$group)); +} + +sub modify_coursegroup { + my ($cdom,$cnum,$groupsettings) = @_; + return(&put('coursegroups',$groupsettings,$cdom,$cnum)); +} + +sub toggle_coursegroup_status { + my ($cdom,$cnum,$group,$action) = @_; + my ($from_namespace,$to_namespace); + if ($action eq 'delete') { + $from_namespace = 'coursegroups'; + $to_namespace = 'deleted_groups'; + } else { + $from_namespace = 'deleted_groups'; + $to_namespace = 'coursegroups'; + } + my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace); + if (my $tmp = &error(%curr_group)) { + &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom); + return ('read error',$tmp); + } else { + my %savedsettings = %curr_group; + my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum); + my $deloutcome; + if ($result eq 'ok') { + $deloutcome = &del($from_namespace,[$group],$cdom,$cnum); + } else { + return ('write error',$result); + } + if ($deloutcome eq 'ok') { + return 'ok'; + } else { + return ('delete error',$deloutcome); + } + } +} + +sub modify_group_roles { + my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs,$selfenroll,$context) = @_; + my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id; + my $role = 'gr/'.&escape($userprivs); + my ($uname,$udom) = split(/:/,$user); + my $result = &assignrole($udom,$uname,$url,$role,$end,$start,'',$selfenroll,$context); + if ($result eq 'ok') { + &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum); + } + return $result; +} + +sub modify_coursegroup_membership { + my ($cdom,$cnum,$membership) = @_; + my $result = &put('groupmembership',$membership,$cdom,$cnum); + return $result; +} + +sub get_active_groups { + my ($udom,$uname,$cdom,$cnum) = @_; + my $now = time; + my %groups = (); + foreach my $key (keys(%env)) { + if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) { + my ($start,$end) = split(/\./,$env{$key}); + if (($end!=0) && ($end<$now)) { next; } + if (($start!=0) && ($start>$now)) { next; } + if ($1 eq $cdom && $2 eq $cnum) { + $groups{$3} = $env{$key} ; + } + } + } + return %groups; +} + +sub get_group_membership { + my ($cdom,$cnum,$group) = @_; + return(&dump('groupmembership',$cdom,$cnum,$group)); +} + +sub get_users_groups { + my ($udom,$uname,$courseid) = @_; + my @usersgroups; + my $cachetime=1800; + + my $hashid="$udom:$uname:$courseid"; + my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid); + if (defined($cached)) { + @usersgroups = split(/:/,$grouplist); + } else { + $grouplist = ''; + my $courseurl = &courseid_to_courseurl($courseid); + my %roleshash = &dump('roles',$udom,$uname,$courseurl); + my $access_end = $env{'course.'.$courseid. + '.default_enrollment_end_date'}; + my $now = time; + foreach my $key (keys(%roleshash)) { + if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) { + my $group = $1; + if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) { + my $start = $2; + my $end = $1; + if ($start == -1) { next; } # deleted from group + if (($start!=0) && ($start>$now)) { next; } + if (($end!=0) && ($end<$now)) { + if ($access_end && $access_end < $now) { + if ($access_end - $end < 86400) { + push(@usersgroups,$group); + } + } + next; + } + push(@usersgroups,$group); + } + } + } + @usersgroups = &sort_course_groups($courseid,@usersgroups); + $grouplist = join(':',@usersgroups); + &do_cache_new('getgroups',$hashid,$grouplist,$cachetime); + } + return @usersgroups; +} + +sub devalidate_getgroups_cache { + my ($udom,$uname,$cdom,$cnum)=@_; + my $courseid = $cdom.'_'.$cnum; + + my $hashid="$udom:$uname:$courseid"; + &devalidate_cache_new('getgroups',$hashid); +} + # ------------------------------------------------------------------ Plain Text sub plaintext { - my $short=shift; - return &mt($prp{$short}); + my ($short,$type,$cid,$forcedefault) = @_; + if ($short =~ m{^cr/}) { + return (split('/',$short))[-1]; + } + if (!defined($cid)) { + $cid = $env{'request.course.id'}; + } + my %rolenames = ( + Course => 'std', + Community => 'alt1', + Placement => 'std', + ); + if ($cid ne '') { + if ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '') { + unless ($forcedefault) { + my $roletext = $env{'course.'.$cid.'.'.$short.'.plaintext'}; + &Apache::lonlocal::mt_escape(\$roletext); + return &Apache::lonlocal::mt($roletext); + } + } + } + if ((defined($type)) && (defined($rolenames{$type})) && + (defined($rolenames{$type})) && + (defined($prp{$short}{$rolenames{$type}}))) { + return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}}); + } elsif ($cid ne '') { + my $crstype = $env{'course.'.$cid.'.type'}; + if (($crstype ne '') && (defined($rolenames{$crstype})) && + (defined($prp{$short}{$rolenames{$crstype}}))) { + return &Apache::lonlocal::mt($prp{$short}{$rolenames{$crstype}}); + } + } + return &Apache::lonlocal::mt($prp{$short}{'std'}); } # ----------------------------------------------------------------- Assign Role sub assignrole { - my ($udom,$uname,$url,$role,$end,$start,$deleteflag)=@_; + my ($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll, + $context)=@_; my $mrole; if ($role =~ /^cr\//) { my $cwosec=$url; - $cwosec=~s/^\/(\w+)\/(\w+)\/.*/$1\/$2/; + $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/; unless (&allowed('ccr',$cwosec)) { - &logthis('Refused custom assignrole: '. - $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '. - $ENV{'user.name'}.' at '.$ENV{'user.domain'}); - return 'refused'; + my $refused = 1; + if ($context eq 'requestcourses') { + if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) { + if ($role =~ m{^cr/($match_domain)/($match_username)/([^/]+)$}) { + if (($1 eq $env{'user.domain'}) && ($2 eq $env{'user.name'})) { + my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$}); + my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner')); + if ($crsenv{'internal.courseowner'} eq + $env{'user.name'}.':'.$env{'user.domain'}) { + $refused = ''; + } + } + } + } + } + if ($refused) { + &logthis('Refused custom assignrole: '. + $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start. + ' by '.$env{'user.name'}.' at '.$env{'user.domain'}); + return 'refused'; + } } $mrole='cr'; + } elsif ($role =~ /^gr\//) { + my $cwogrp=$url; + $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2}; + unless (&allowed('mdg',$cwogrp)) { + &logthis('Refused group assignrole: '. + $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '. + $env{'user.name'}.' at '.$env{'user.domain'}); + return 'refused'; + } + $mrole='gr'; } else { my $cwosec=$url; - $cwosec=~s/^\/(\w+)\/(\w+)\/.*/$1\/$2/; - unless ((&allowed('c'.$role,$cwosec)) || &allowed('c'.$role,$udom)) { - &logthis('Refused assignrole: '. - $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '. - $ENV{'user.name'}.' at '.$ENV{'user.domain'}); - return 'refused'; + $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/; + if (!(&allowed('c'.$role,$cwosec)) && !(&allowed('c'.$role,$udom))) { + my $refused; + if (($env{'request.course.sec'} ne '') && ($role eq 'st')) { + if (!(&allowed('c'.$role,$url))) { + $refused = 1; + } + } else { + $refused = 1; + } + if ($refused) { + my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$}); + if (!$selfenroll && (($context eq 'course') || ($context eq 'ltienroll' && $env{'request.lti.login'}))) { + my %crsenv; + if ($role eq 'cc' || $role eq 'co') { + %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner')); + if (($role eq 'cc') && ($cnum !~ /^$match_community$/)) { + if ($env{'request.role'} eq 'cc./'.$cdom.'/'.$cnum) { + if ($crsenv{'internal.courseowner'} eq + $env{'user.name'}.':'.$env{'user.domain'}) { + $refused = ''; + } + } + } elsif (($role eq 'co') && ($cnum =~ /^$match_community$/)) { + if ($env{'request.role'} eq 'co./'.$cdom.'/'.$cnum) { + if ($crsenv{'internal.courseowner'} eq + $env{'user.name'}.':'.$env{'user.domain'}) { + $refused = ''; + } + } + } + } + } elsif (($selfenroll == 1) && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) { + if ($role eq 'st') { + $refused = ''; + } elsif (($context eq 'ltienroll') && ($env{'request.lti.login'})) { + $refused = ''; + } + } elsif ($context eq 'requestcourses') { + my @possroles = ('st','ta','ep','in','cc','co'); + if ((grep(/^\Q$role\E$/,@possroles)) && ($env{'user.name'} ne '' && $env{'user.domain'} ne '')) { + my $wrongcc; + if ($cnum =~ /^$match_community$/) { + $wrongcc = 1 if ($role eq 'cc'); + } else { + $wrongcc = 1 if ($role eq 'co'); + } + unless ($wrongcc) { + my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner')); + if ($crsenv{'internal.courseowner'} eq + $env{'user.name'}.':'.$env{'user.domain'}) { + $refused = ''; + } + } + } + } elsif ($context eq 'requestauthor') { + if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) && + ($url eq '/'.$udom.'/') && ($role eq 'au')) { + if ($env{'environment.requestauthor'} eq 'automatic') { + $refused = ''; + } else { + my %domdefaults = &get_domain_defaults($udom); + if (ref($domdefaults{'requestauthor'}) eq 'HASH') { + my $checkbystatus; + if ($env{'user.adv'}) { + my $disposition = $domdefaults{'requestauthor'}{'_LC_adv'}; + if ($disposition eq 'automatic') { + $refused = ''; + } elsif ($disposition eq '') { + $checkbystatus = 1; + } + } else { + $checkbystatus = 1; + } + if ($checkbystatus) { + if ($env{'environment.inststatus'}) { + my @inststatuses = split(/,/,$env{'environment.inststatus'}); + foreach my $type (@inststatuses) { + if (($type ne '') && + ($domdefaults{'requestauthor'}{$type} eq 'automatic')) { + $refused = ''; + } + } + } elsif ($domdefaults{'requestauthor'}{'default'} eq 'automatic') { + $refused = ''; + } + } + } + } + } + } + if ($refused) { + &logthis('Refused assignrole: '.$udom.' '.$uname.' '.$url. + ' '.$role.' '.$end.' '.$start.' by '. + $env{'user.name'}.' at '.$env{'user.domain'}); + return 'refused'; + } + } + } elsif ($role eq 'au') { + if ($url ne '/'.$udom.'/') { + &logthis('Attempt by '.$env{'user.name'}.':'.$env{'user.domain'}. + ' to assign author role for '.$uname.':'.$udom. + ' in domain: '.$url.' refused (wrong domain).'); + return 'refused'; + } } $mrole=$role; } - my $command="encrypt:rolesput:$ENV{'user.domain'}:$ENV{'user.name'}:". + my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:". "$udom:$uname:$url".'_'."$mrole=$role"; if ($end) { $command.='_'.$end; } if ($start) { @@ -2917,46 +10235,184 @@ sub assignrole { $command.='_0_'.$start; } } + my $origstart = $start; + my $origend = $end; + my $delflag; # actually delete if ($deleteflag) { if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) { # modify command to delete the role - $command="encrypt:rolesdel:$ENV{'user.domain'}:$ENV{'user.name'}:". + $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:". "$udom:$uname:$url".'_'."$mrole"; - &logthis("$ENV{'user.name'} at $ENV{'user.domain'} deletes $mrole in $url for $uname at $udom"); + &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom"); # set start and finish to negative values for userrolelog $start=-1; $end=-1; + $delflag = 1; } } # send command my $answer=&reply($command,&homeserver($uname,$udom)); # log new user role if status is ok if ($answer eq 'ok') { - &userrolelog($mrole,$uname,$udom,$url,$start,$end); + &userrolelog($role,$uname,$udom,$url,$start,$end); + if (($role eq 'cc') || ($role eq 'in') || + ($role eq 'ep') || ($role eq 'ad') || + ($role eq 'ta') || ($role eq 'st') || + ($role=~/^cr/) || ($role eq 'gr') || + ($role eq 'co')) { +# for course roles, perform group memberships changes triggered by role change. + unless ($role =~ /^gr/) { + &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend, + $origstart,$selfenroll,$context); + } + &courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag, + $selfenroll,$context); + } elsif (($role eq 'li') || ($role eq 'dg') || ($role eq 'sc') || + ($role eq 'au') || ($role eq 'dc') || ($role eq 'dh') || + ($role eq 'da')) { + &domainrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag, + $context); + } elsif (($role eq 'ca') || ($role eq 'aa')) { + &coauthorrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag, + $context); + } + if ($role eq 'cc') { + &autoupdate_coowners($url,$end,$start,$uname,$udom); + } } return $answer; } +sub autoupdate_coowners { + my ($url,$end,$start,$uname,$udom) = @_; + my ($cdom,$cnum) = ($url =~ m{^/($match_domain)/($match_courseid)}); + if (($cdom ne '') && ($cnum ne '')) { + my $now = time; + my %domdesign = &Apache::loncommon::get_domainconf($cdom); + if ($domdesign{$cdom.'.autoassign.co-owners'}) { + my %coursehash = &coursedescription($cdom.'_'.$cnum); + my $instcode = $coursehash{'internal.coursecode'}; + my $xlists = $coursehash{'internal.crosslistings'}; + if ($instcode ne '') { + if (($start && $start <= $now) && ($end == 0) || ($end > $now)) { + unless ($coursehash{'internal.courseowner'} eq $uname.':'.$udom) { + my ($delcoowners,@newcoowners,$putresult,$delresult,$coowners); + my ($result,$desc) = &auto_validate_instcode($cnum,$cdom,$instcode,$uname.':'.$udom); + unless ($result eq 'valid') { + if ($xlists ne '') { + foreach my $xlist (split(',',$xlists)) { + my ($inst_crosslist,$lcsec) = split(':',$xlist); + $result = + &auto_validate_inst_crosslist($cnum,$cdom,$instcode, + $inst_crosslist,$uname.':'.$udom); + last if ($result eq 'valid'); + } + } + } + if ($result eq 'valid') { + if ($coursehash{'internal.co-owners'}) { + foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) { + push(@newcoowners,$coowner); + } + unless (grep(/^\Q$uname\E:\Q$udom\E$/,@newcoowners)) { + push(@newcoowners,$uname.':'.$udom); + } + @newcoowners = sort(@newcoowners); + } else { + push(@newcoowners,$uname.':'.$udom); + } + } elsif ($coursehash{'internal.co-owners'}) { + foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) { + unless ($coowner eq $uname.':'.$udom) { + push(@newcoowners,$coowner); + } + } + unless (@newcoowners > 0) { + $delcoowners = 1; + $coowners = ''; + } + } + if (@newcoowners || $delcoowners) { + &store_coowners($cdom,$cnum,$coursehash{'home'}, + $delcoowners,@newcoowners); + } + } + } + } + } + } +} + +sub store_coowners { + my ($cdom,$cnum,$chome,$delcoowners,@newcoowners) = @_; + my $cid = $cdom.'_'.$cnum; + my ($coowners,$delresult,$putresult); + if (@newcoowners) { + $coowners = join(',',@newcoowners); + my %coownershash = ( + 'internal.co-owners' => $coowners, + ); + $putresult = &put('environment',\%coownershash,$cdom,$cnum); + if ($putresult eq 'ok') { + if ($env{'course.'.$cid.'.num'} eq $cnum) { + &appenv({'course.'.$cid.'.internal.co-owners' => $coowners}); + } + } + } + if ($delcoowners) { + $delresult = &Apache::lonnet::del('environment',['internal.co-owners'],$cdom,$cnum); + if ($delresult eq 'ok') { + if ($env{'course.'.$cid.'.internal.co-owners'}) { + &Apache::lonnet::delenv('course.'.$cid.'.internal.co-owners'); + } + } + } + if (($putresult eq 'ok') || ($delresult eq 'ok')) { + my %crsinfo = + &Apache::lonnet::courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.'); + if (ref($crsinfo{$cid}) eq 'HASH') { + $crsinfo{$cid}{'co-owners'} = \@newcoowners; + my $cidput = &Apache::lonnet::courseidput($cdom,\%crsinfo,$chome,'notime'); + } + } +} + # -------------------------------------------------- Modify user authentication # Overrides without validation sub modifyuserauth { my ($udom,$uname,$umode,$upass)=@_; my $uhome=&homeserver($uname,$udom); - unless (&allowed('mau',$udom)) { return 'refused'; } + my $allowed; + if (&allowed('mau',$udom)) { + $allowed = 1; + } elsif (($umode eq 'internal') && ($udom eq $env{'user.domain'}) && + ($env{'request.course.id'}) && (&allowed('mip',$env{'request.course.id'})) && + (!$env{'course.'.$env{'request.course.id'}.'.internal.nopasswdchg'})) { + my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + if (($cdom ne '') && ($cnum ne '')) { + my $is_owner = &is_course_owner($cdom,$cnum); + if ($is_owner) { + $allowed = 1; + } + } + } + unless ($allowed) { return 'refused'; } &logthis('Call to modify user authentication '.$udom.', '.$uname.', '. - $umode.' by '.$ENV{'user.name'}.' at '.$ENV{'user.domain'}. - ' in domain '.$ENV{'request.role.domain'}); + $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}. + ' in domain '.$env{'request.role.domain'}); my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'. &escape($upass),$uhome); - &log($ENV{'user.domain'},$ENV{'user.name'},$ENV{'user.home'}, + my $ip = &get_requestor_ip(); + &log($env{'user.domain'},$env{'user.name'},$env{'user.home'}, 'Authentication changed for '.$udom.', '.$uname.', '.$umode. - '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply); + '(Remote '.$ip.'): '.$reply); &log($udom,,$uname,$uhome, - 'Authentication changed by '.$ENV{'user.domain'}.', '. - $ENV{'user.name'}.', '.$umode. - '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply); + 'Authentication changed by '.$env{'user.domain'}.', '. + $env{'user.name'}.', '.$umode. + '(Remote '.$ip.'): '.$reply); unless ($reply eq 'ok') { &logthis('Authentication mode error: '.$reply); return 'error: '.$reply; @@ -2970,36 +10426,48 @@ sub modifyuser { my ($udom, $uname, $uid, $umode, $upass, $first, $middle, $last, $gene, - $forceid, $desiredhome, $email)=@_; - $udom=~s/\W//g; - $uname=~s/\W//g; + $forceid, $desiredhome, $email, $inststatus, $candelete)=@_; + $udom= &LONCAPA::clean_domain($udom); + $uname=&LONCAPA::clean_username($uname); + my $showcandelete = 'none'; + if (ref($candelete) eq 'ARRAY') { + if (@{$candelete} > 0) { + $showcandelete = join(', ',@{$candelete}); + } + } &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '. $umode.', '.$first.', '.$middle.', '. - $last.', '.$gene.'(forceid: '.$forceid.')'. + $last.', '.$gene.'(forceid: '.$forceid.'; candelete: '.$showcandelete.')'. (defined($desiredhome) ? ' desiredhome = '.$desiredhome : ' desiredhome not specified'). - ' by '.$ENV{'user.name'}.' at '.$ENV{'user.domain'}. - ' in domain '.$ENV{'request.role.domain'}); + ' by '.$env{'user.name'}.' at '.$env{'user.domain'}. + ' in domain '.$env{'request.role.domain'}); my $uhome=&homeserver($uname,$udom,'true'); + my $newuser; + if ($uhome eq 'no_host') { + $newuser = 1; + unless (($umode && ($upass ne '')) || ($umode eq 'localauth') || + ($umode eq 'lti')) { + return 'error: more information needed to create new user'; + } + } # ----------------------------------------------------------------- Create User if (($uhome eq 'no_host') && - (($umode && $upass) || ($umode eq 'localauth'))) { + (($umode && $upass) || ($umode eq 'localauth') || ($umode eq 'lti'))) { my $unhome=''; - if (defined($desiredhome) && $hostdom{$desiredhome} eq $udom) { + if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) { $unhome = $desiredhome; - } elsif($ENV{'course.'.$ENV{'request.course.id'}.'.domain'} eq $udom) { - $unhome=$ENV{'course.'.$ENV{'request.course.id'}.'.home'}; + } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) { + $unhome=$env{'course.'.$env{'request.course.id'}.'.home'}; } else { # load balancing routine for determining $unhome - my $tryserver; my $loadm=10000000; - foreach $tryserver (keys %libserv) { - if ($hostdom{$tryserver} eq $udom) { - my $answer=reply('load',$tryserver); - if (($answer=~/\d+/) && ($answer<$loadm)) { - $loadm=$answer; - $unhome=$tryserver; - } - } + my %servers = &get_servers($udom,'library'); + foreach my $tryserver (keys(%servers)) { + my $answer=reply('load',$tryserver); + if (($answer=~/\d+/) && ($answer<$loadm)) { + $loadm=$answer; + $unhome=$tryserver; + } } } if (($unhome eq '') || ($unhome eq 'no_host')) { @@ -3027,36 +10495,108 @@ sub modifyuser { 'current user id "'.$uidhash{$uname}.'".'; } } else { - &idput($udom,($uname => $uid)); + &idput($udom,{$uname => $uid},$uhome,'ids'); } } # -------------------------------------------------------------- Add names, etc my @tmp=&get('environment', - ['firstname','middlename','lastname','generation'], + ['firstname','middlename','lastname','generation','id', + 'permanentemail','inststatus'], $udom,$uname); - my %names; + my (%names,%oldnames); if ($tmp[0] =~ m/^error:.*/) { %names=(); } else { %names = @tmp; + %oldnames = %names; } # -# Make sure to not trash student environment if instructor does not bother -# to supply name and email information +# If name, email and/or uid are blank (e.g., because an uploaded file +# of users did not contain them), do not overwrite existing values +# unless field is in $candelete array ref. # + + my @fields = ('firstname','middlename','lastname','generation', + 'permanentemail','id'); + my %newvalues; + if (ref($candelete) eq 'ARRAY') { + foreach my $field (@fields) { + if (grep(/^\Q$field\E$/,@{$candelete})) { + if ($field eq 'firstname') { + $names{$field} = $first; + } elsif ($field eq 'middlename') { + $names{$field} = $middle; + } elsif ($field eq 'lastname') { + $names{$field} = $last; + } elsif ($field eq 'generation') { + $names{$field} = $gene; + } elsif ($field eq 'permanentemail') { + $names{$field} = $email; + } elsif ($field eq 'id') { + $names{$field} = $uid; + } + } + } + } if ($first) { $names{'firstname'} = $first; } if (defined($middle)) { $names{'middlename'} = $middle; } if ($last) { $names{'lastname'} = $last; } if (defined($gene)) { $names{'generation'} = $gene; } - if ($email) { $names{'notification'} = $email; - $names{'critnotification'} = $email; } - + if ($email) { + $email=~s/[^\w\@\.\-\,]//gs; + if ($email=~/\@/) { $names{'permanentemail'} = $email; } + } + if ($uid) { $names{'id'} = $uid; } + if (defined($inststatus)) { + $names{'inststatus'} = ''; + my ($usertypes,$typesorder) = &retrieve_inst_usertypes($udom); + if (ref($usertypes) eq 'HASH') { + my @okstatuses; + foreach my $item (split(/:/,$inststatus)) { + if (defined($usertypes->{$item})) { + push(@okstatuses,$item); + } + } + if (@okstatuses) { + $names{'inststatus'} = join(':', map { &escape($_); } @okstatuses); + } + } + } + my $logmsg = $udom.', '.$uname.', '.$uid.', '. + $umode.', '.$first.', '.$middle.', '. + $last.', '.$gene.', '.$email.', '.$inststatus; + if ($env{'user.name'} ne '' && $env{'user.domain'}) { + $logmsg .= ' by '.$env{'user.name'}.' at '.$env{'user.domain'}; + } else { + $logmsg .= ' during self creation'; + } + my $changed; + if ($newuser) { + $changed = 1; + } else { + foreach my $field (@fields) { + if ($names{$field} ne $oldnames{$field}) { + $changed = 1; + last; + } + } + } + unless ($changed) { + $logmsg = 'No changes in user information needed for: '.$logmsg; + &logthis($logmsg); + return 'ok'; + } my $reply = &put('environment', \%names, $udom,$uname); - if ($reply ne 'ok') { return 'error: '.$reply; } - &logthis('Success modifying user '.$udom.', '.$uname.', '.$uid.', '. - $umode.', '.$first.', '.$middle.', '. - $last.', '.$gene.' by '. - $ENV{'user.name'}.' at '.$ENV{'user.domain'}); + if ($reply ne 'ok') { + return 'error: '.$reply; + } + if ($names{'permanentemail'} ne $oldnames{'permanentemail'}) { + &Apache::lonnet::devalidate_cache_new('emailscache',$uname.':'.$udom); + } + my $sqlresult = &update_allusers_table($uname,$udom,\%names); + &devalidate_cache_new('namescache',$uname.':'.$udom); + $logmsg = 'Success modifying user '.$logmsg; + &logthis($logmsg); return 'ok'; } @@ -3064,37 +10604,50 @@ sub modifyuser { sub modifystudent { my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec, - $end,$start,$forceid,$desiredhome,$email)=@_; - my $cid=''; - unless ($cid=$ENV{'request.course.id'}) { - return 'not_in_class'; + $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid, + $selfenroll,$context,$inststatus,$credits,$instsec)=@_; + if (!$cid) { + unless ($cid=$env{'request.course.id'}) { + return 'not_in_class'; + } } # --------------------------------------------------------------- Make the user my $reply=&modifyuser ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid, - $desiredhome,$email); + $desiredhome,$email,$inststatus); unless ($reply eq 'ok') { return $reply; } # This will cause &modify_student_enrollment to get the uid from the - # students environment + # student's environment $uid = undef if (!$forceid); - $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle, - $last,$gene,$usec,$end,$start); + $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last, + $gene,$usec,$end,$start,$type,$locktype, + $cid,$selfenroll,$context,$credits,$instsec); return $reply; } sub modify_student_enrollment { - my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start) = @_; - # Get the course id from the environment - my $cid=''; - unless ($cid=$ENV{'request.course.id'}) { - return 'not_in_class'; + my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type, + $locktype,$cid,$selfenroll,$context,$credits,$instsec) = @_; + my ($cdom,$cnum,$chome); + if (!$cid) { + unless ($cid=$env{'request.course.id'}) { + return 'not_in_class'; + } + $cdom=$env{'course.'.$cid.'.domain'}; + $cnum=$env{'course.'.$cid.'.num'}; + } else { + ($cdom,$cnum)=split(/_/,$cid); } + $chome=$env{'course.'.$cid.'.home'}; + if (!$chome) { + $chome=&homeserver($cnum,$cdom); + } + if (!$chome) { return 'unknown_course'; } # Make sure the user exists my $uhome=&homeserver($uname,$udom); if (($uhome eq '') || ($uhome eq 'no_host')) { return 'error: no such user'; } - # # Get student data if we were not given enough information if (!defined($first) || $first eq '' || !defined($last) || $last eq '' || @@ -3107,23 +10660,25 @@ sub modify_student_enrollment { ['firstname','middlename','lastname', 'generation','id'] ,$udom,$uname); - foreach (keys(%tmp)) { - &logthis("key $_ = ".$tmp{$_}); - } + #foreach my $key (keys(%tmp)) { + # &logthis("key $key = ".$tmp{$key}); + #} $first = $tmp{'firstname'} if (!defined($first) || $first eq ''); $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq ''); $last = $tmp{'lastname'} if (!defined($last) || $last eq ''); $gene = $tmp{'generation'} if (!defined($gene) || $gene eq ''); $uid = $tmp{'id'} if (!defined($uid) || $uid eq ''); } - my $fullname = &Apache::loncoursedata::ProcessFullName($last,$gene, - $first,$middle); - my $reply=critical('put:'.$ENV{'course.'.$cid.'.domain'}.':'. - $ENV{'course.'.$cid.'.num'}.':classlist:'. - &escape($uname.':'.$udom).'='. - &escape(join(':',$end,$start,$uid,$usec,$fullname)), - $ENV{'course.'.$cid.'.home'}); - unless (($reply eq 'ok') || ($reply eq 'delayed')) { + my $fullname = &format_name($first,$middle,$last,$gene,'lastname'); + my $user = "$uname:$udom"; + my %old_entry = &Apache::lonnet::get('classlist',[$user],$cdom,$cnum); + my $reply=cput('classlist', + {$user => + join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype,$credits,$instsec) }, + $cdom,$cnum); + if (($reply eq 'ok') || ($reply eq 'delayed')) { + &devalidate_getsection_cache($udom,$uname,$cid); + } else { return 'error: '.$reply; } # Add student role to user @@ -3132,7 +10687,35 @@ sub modify_student_enrollment { if ($usec) { $uurl.='/'.$usec; } - return &assignrole($udom,$uname,$uurl,'st',$end,$start); + my $result = &assignrole($udom,$uname,$uurl,'st',$end,$start,undef, + $selfenroll,$context); + if ($result ne 'ok') { + if ($old_entry{$user} ne '') { + $reply = &cput('classlist',\%old_entry,$cdom,$cnum); + } else { + $reply = &del('classlist',[$user],$cdom,$cnum); + } + } + return $result; +} + +sub format_name { + my ($firstname,$middlename,$lastname,$generation,$first)=@_; + my $name; + if ($first ne 'lastname') { + $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation; + } else { + if ($lastname=~/\S/) { + $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename; + $name=~s/\s+,/,/; + } else { + $name.= $firstname.' '.$middlename.' '.$generation; + } + } + $name=~s/^\s+//; + $name=~s/\s+$//; + $name=~s/\s+/ /g; + return $name; } # ------------------------------------------------- Write to course preferences @@ -3147,8 +10730,8 @@ sub writecoursepref { return 'error: no such course'; } my $cstring=''; - foreach (keys %prefs) { - $cstring.=escape($_).'='.escape($prefs{$_}).'&'; + foreach my $pref (keys(%prefs)) { + $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&'; } $cstring=~s/\&$//; return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome); @@ -3157,50 +10740,106 @@ sub writecoursepref { # ---------------------------------------------------------- Make/modify course sub createcourse { - my ($udom,$description,$url,$course_server,$nonstandard)=@_; + my ($udom,$description,$url,$course_server,$nonstandard,$inst_code, + $course_owner,$crstype,$cnum,$context,$category,$callercontext)=@_; $url=&declutter($url); my $cid=''; - unless (&allowed('ccc',$udom)) { + if ($context eq 'requestcourses') { + my $can_create = 0; + my ($ownername,$ownerdom) = split(':',$course_owner); + if ($udom eq $ownerdom) { + my $reload; + if (($callercontext eq 'auto') && + ($ownerdom eq $env{'user.domain'}) && ($ownername eq $env{'user.name'})) { + $reload = 'reload'; + } + if (&usertools_access($ownername,$ownerdom,$category,$reload, + $context)) { + $can_create = 1; + } + } else { + my %userenv = &userenvironment($ownerdom,$ownername,'reqcrsotherdom.'. + $category); + if ($userenv{'reqcrsotherdom.'.$category} ne '') { + my @curr = split(',',$userenv{'reqcrsotherdom.'.$category}); + if (@curr > 0) { + my @options = qw(approval validate autolimit); + my $optregex = join('|',@options); + if (grep(/^\Q$udom\E:($optregex)(=?\d*)$/,@curr)) { + $can_create = 1; + } + } + } + } + if ($can_create) { + unless ($ownername eq $env{'user.name'} && $ownerdom eq $env{'user.domain'}) { + unless (&allowed('ccc',$udom)) { + return 'refused'; + } + } + } else { + return 'refused'; + } + } elsif (!&allowed('ccc',$udom)) { return 'refused'; } -# ------------------------------------------------------------------- Create ID - my $uname=substr($$.time,0,5).unpack("H8",pack("I32",time)). - unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'}; -# ----------------------------------------------- Make sure that does not exist - my $uhome=&homeserver($uname,$udom,'true'); - unless (($uhome eq '') || ($uhome eq 'no_host')) { - $uname=substr($$.time,0,5).unpack("H8",pack("I32",time)). - unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'}; - $uhome=&homeserver($uname,$udom,'true'); - unless (($uhome eq '') || ($uhome eq 'no_host')) { - return 'error: unable to generate unique course-ID'; - } - } -# ------------------------------------------------ Check supplied server name - $course_server = $ENV{'user.homeserver'} if (! defined($course_server)); - if (! exists($libserv{$course_server})) { - return 'error:bad server name '.$course_server; +# --------------------------------------------------------------- Get Unique ID + my $uname; + if ($cnum =~ /^$match_courseid$/) { + my $chome=&homeserver($cnum,$udom,'true'); + if (($chome eq '') || ($chome eq 'no_host')) { + $uname = $cnum; + } else { + $uname = &generate_coursenum($udom,$crstype); + } + } else { + $uname = &generate_coursenum($udom,$crstype); + } + return $uname if ($uname =~ /^error/); +# -------------------------------------------------- Check supplied server name + if (!defined($course_server)) { + if (defined(&domain($udom,'primary'))) { + $course_server = &domain($udom,'primary'); + } else { + $course_server = $env{'user.home'}; + } + } + my %host_servers = + &Apache::lonnet::get_servers($udom,'library'); + unless ($host_servers{$course_server}) { + return 'error: invalid home server for course: '.$course_server; } # ------------------------------------------------------------- Make the course my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::', $course_server); unless ($reply eq 'ok') { return 'error: '.$reply; } - $uhome=&homeserver($uname,$udom,'true'); + my $uhome=&homeserver($uname,$udom,'true'); if (($uhome eq '') || ($uhome eq 'no_host')) { return 'error: no such course'; } # ----------------------------------------------------------------- Course made -# log existance - &courseidput($udom,&escape($udom.'_'.$uname).'='.&escape($description), - $uhome); - &flushcourselogs(); +# log existence + my $now = time; + my $newcourse = { + $udom.'_'.$uname => { + description => $description, + inst_code => $inst_code, + owner => $course_owner, + type => $crstype, + creator => $env{'user.name'}.':'. + $env{'user.domain'}, + created => $now, + context => $context, + }, + }; + &courseidput($udom,$newcourse,$uhome,'notime'); # set toplevel url my $topurl=$url; unless ($nonstandard) { # ------------------------------------------ For standard courses, make top url my $mapurl=&clutter($url); if ($mapurl eq '/res/') { $mapurl=''; } - $ENV{'form.initmap'}=(< @@ -3210,111 +10849,862 @@ sub createcourse { ENDINITMAP $topurl=&declutter( - &finishuserfileupload($uname,$udom,$uhome,'initmap','default.sequence') + &finishuserfileupload($uname,$udom,'initmap','default.sequence') ); } # ----------------------------------------------------------- Write preferences &writecoursepref($udom.'_'.$uname, - ('description' => $description, - 'url' => $topurl)); + ('description' => $description, + 'url' => $topurl, + 'internal.creator' => $env{'user.name'}.':'. + $env{'user.domain'}, + 'internal.created' => $now, + 'internal.creationcontext' => $context) + ); return '/'.$udom.'/'.$uname; } +# ------------------------------------------------------------------- Create ID +sub generate_coursenum { + my ($udom,$crstype) = @_; + my $domdesc = &domain($udom); + return 'error: invalid domain' if ($domdesc eq ''); + my $first; + if ($crstype eq 'Community') { + $first = '0'; + } else { + $first = int(1+rand(9)); + } + my $uname=$first. + ('a'..'z','A'..'Z','0'..'9')[int(rand(62))]. + substr($$.time,0,5).unpack("H8",pack("I32",time)). + unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'}; +# ----------------------------------------------- Make sure that does not exist + my $uhome=&homeserver($uname,$udom,'true'); + unless (($uhome eq '') || ($uhome eq 'no_host')) { + if ($crstype eq 'Community') { + $first = '0'; + } else { + $first = int(1+rand(9)); + } + $uname=$first. + ('a'..'z','A'..'Z','0'..'9')[int(rand(62))]. + substr($$.time,0,5).unpack("H8",pack("I32",time)). + unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'}; + $uhome=&homeserver($uname,$udom,'true'); + unless (($uhome eq '') || ($uhome eq 'no_host')) { + return 'error: unable to generate unique course-ID'; + } + } + return $uname; +} + +sub is_course { + my ($cdom, $cnum) = scalar(@_) == 1 ? + ($_[0] =~ /^($match_domain)_($match_courseid)$/) : @_; + + return unless (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)); + my $uhome=&homeserver($cnum,$cdom); + my $iscourse; + if (grep { $_ eq $uhome } current_machine_ids()) { + $iscourse = &LONCAPA::Lond::is_course($cdom,$cnum); + } else { + my $hashid = $cdom.':'.$cnum; + ($iscourse,my $cached) = &is_cached_new('iscourse',$hashid); + unless (defined($cached)) { + my %courses = &courseiddump($cdom, '.', 1, '.', '.', + $cnum,undef,undef,'.'); + $iscourse = 0; + if (exists($courses{$cdom.'_'.$cnum})) { + $iscourse = 1; + } + &do_cache_new('iscourse',$hashid,$iscourse,3600); + } + } + return unless ($iscourse); + return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum; +} + +sub store_userdata { + my ($storehash,$datakey,$namespace,$udom,$uname) = @_; + my $result; + if ($datakey ne '') { + if (ref($storehash) eq 'HASH') { + if ($udom eq '' || $uname eq '') { + $udom = $env{'user.domain'}; + $uname = $env{'user.name'}; + } + my $uhome=&homeserver($uname,$udom); + if (($uhome eq '') || ($uhome eq 'no_host')) { + $result = 'error: no_host'; + } else { + $storehash->{'ip'} = &get_requestor_ip(); + $storehash->{'host'} = $perlvar{'lonHostID'}; + + my $namevalue=''; + foreach my $key (keys(%{$storehash})) { + $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&'; + } + $namevalue=~s/\&$//; + unless ($namespace eq 'courserequests') { + $datakey = &escape($datakey); + } + $result = &reply("store:$udom:$uname:$namespace:$datakey:". + $namevalue,$uhome); + } + } else { + $result = 'error: data to store was not a hash reference'; + } + } else { + $result= 'error: invalid requestkey'; + } + return $result; +} + # ---------------------------------------------------------- Assign Custom Role sub assigncustomrole { - my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag)=@_; + my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag,$selfenroll,$context)=@_; return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename, - $end,$start,$deleteflag); + $end,$start,$deleteflag,$selfenroll,$context); } # ----------------------------------------------------------------- Revoke Role sub revokerole { - my ($udom,$uname,$url,$role,$deleteflag)=@_; + my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_; my $now=time; - return &assignrole($udom,$uname,$url,$role,$now,$deleteflag); + return &assignrole($udom,$uname,$url,$role,$now,undef,$deleteflag,$selfenroll,$context); } # ---------------------------------------------------------- Revoke Custom Role sub revokecustomrole { - my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag)=@_; + my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag,$selfenroll,$context)=@_; my $now=time; return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now, - $deleteflag); + $deleteflag,$selfenroll,$context); +} + +# ------------------------------------------------------------ Disk usage +sub diskusage { + my ($udom,$uname,$directorypath,$getpropath)=@_; + $directorypath =~ s/\/$//; + my $listing=&reply('du2:'.&escape($directorypath).':' + .&escape($getpropath).':'.&escape($uname).':' + .&escape($udom),homeserver($uname,$udom)); + if ($listing eq 'unknown_cmd') { + if ($getpropath) { + $directorypath = &propath($udom,$uname).'/'.$directorypath; + } + $listing = &reply('du:'.$directorypath,homeserver($uname,$udom)); + } + return $listing; +} + +sub is_locked { + my ($file_name, $domain, $user, $which) = @_; + my @check; + my $is_locked; + push (@check,$file_name); + my %locked = &get('file_permissions',\@check, + $env{'user.domain'},$env{'user.name'}); + my ($tmp)=keys(%locked); + if ($tmp=~/^error:/) { undef(%locked); } + + if (ref($locked{$file_name}) eq 'ARRAY') { + $is_locked = 'false'; + foreach my $entry (@{$locked{$file_name}}) { + if (ref($entry) eq 'ARRAY') { + $is_locked = 'true'; + if (ref($which) eq 'ARRAY') { + push(@{$which},$entry); + } else { + last; + } + } + } + } else { + $is_locked = 'false'; + } + return $is_locked; +} + +sub declutter_portfile { + my ($file) = @_; + $file =~ s{^(/portfolio/|portfolio/)}{/}; + return $file; +} + +# ------------------------------------------------------------- Mark as Read Only + +sub mark_as_readonly { + my ($domain,$user,$files,$what) = @_; + my %current_permissions = &dump('file_permissions',$domain,$user); + my ($tmp)=keys(%current_permissions); + if ($tmp=~/^error:/) { undef(%current_permissions); } + foreach my $file (@{$files}) { + $file = &declutter_portfile($file); + push(@{$current_permissions{$file}},$what); + } + &put('file_permissions',\%current_permissions,$domain,$user); + return; +} + +# ------------------------------------------------------------Save Selected Files + +sub save_selected_files { + my ($user, $path, @files) = @_; + my $filename = $user."savedfiles"; + my @other_files = &files_not_in_path($user, $path); + open (OUT,'>',LONCAPA::tempdir().$filename); + foreach my $file (@files) { + print (OUT $env{'form.currentpath'}.$file."\n"); + } + foreach my $file (@other_files) { + print (OUT $file."\n"); + } + close (OUT); + return 'ok'; +} + +sub clear_selected_files { + my ($user) = @_; + my $filename = $user."savedfiles"; + open (OUT,'>',LONCAPA::tempdir().$filename); + print (OUT undef); + close (OUT); + return ("ok"); +} + +sub files_in_path { + my ($user, $path) = @_; + my $filename = $user."savedfiles"; + my %return_files; + open (IN,'<',LONCAPA::tempdir().$filename); + while (my $line_in = ) { + chomp ($line_in); + my @paths_and_file = split (m!/!, $line_in); + my $file_part = pop (@paths_and_file); + my $path_part = join ('/', @paths_and_file); + $path_part.='/'; + my $path_and_file = $path_part.$file_part; + if ($path_part eq $path) { + $return_files{$file_part}= 'selected'; + } + } + close (IN); + return (\%return_files); +} + +# called in portfolio select mode, to show files selected NOT in current directory +sub files_not_in_path { + my ($user, $path) = @_; + my $filename = $user."savedfiles"; + my @return_files; + my $path_part; + open(IN, '<',LONCAPA::tempdir().$filename); + while (my $line = ) { + #ok, I know it's clunky, but I want it to work + my @paths_and_file = split(m|/|, $line); + my $file_part = pop(@paths_and_file); + chomp($file_part); + my $path_part = join('/', @paths_and_file); + $path_part .= '/'; + my $path_and_file = $path_part.$file_part; + if ($path_part ne $path) { + push(@return_files, ($path_and_file)); + } + } + close(OUT); + return (@return_files); +} + +#------------------------------Submitted/Handedback Portfolio Files Versioning + +sub portfiles_versioning { + my ($symb,$domain,$stu_name,$portfiles,$versioned_portfiles) = @_; + my $portfolio_root = '/userfiles/portfolio'; + return unless ((ref($portfiles) eq 'ARRAY') && (ref($versioned_portfiles) eq 'ARRAY')); + foreach my $file (@{$portfiles}) { + &unmark_as_readonly($domain,$stu_name,[$symb,$env{'request.course.id'}],$file); + my ($directory,$answer_file) =($file =~ /^(.*?)([^\/]*)$/); + my ($answer_name,$answer_ver,$answer_ext) = &file_name_version_ext($answer_file); + my $getpropath = 1; + my ($dir_list,$listerror) = &dirlist($portfolio_root.$directory,$domain, + $stu_name,$getpropath); + my $version = &get_next_version($answer_name,$answer_ext,$dir_list); + my $new_answer = + &version_selected_portfile($domain,$stu_name,$directory,$answer_file,$version); + if ($new_answer ne 'problem getting file') { + push(@{$versioned_portfiles}, $directory.$new_answer); + &mark_as_readonly($domain,$stu_name,[$directory.$new_answer], + [$symb,$env{'request.course.id'},'graded']); + } + } +} + +sub get_next_version { + my ($answer_name, $answer_ext, $dir_list) = @_; + my $version; + if (ref($dir_list) eq 'ARRAY') { + foreach my $row (@{$dir_list}) { + my ($file) = split(/\&/,$row,2); + my ($file_name,$file_version,$file_ext) = + &file_name_version_ext($file); + if (($file_name eq $answer_name) && + ($file_ext eq $answer_ext)) { + # gets here if filename and extension match, + # regardless of version + if ($file_version ne '') { + # a versioned file is found so save it for later + if ($file_version > $version) { + $version = $file_version; + } + } + } + } + } + $version ++; + return($version); +} + +sub version_selected_portfile { + my ($domain,$stu_name,$directory,$file_name,$version) = @_; + my ($answer_name,$answer_ver,$answer_ext) = + &file_name_version_ext($file_name); + my $new_answer; + $env{'form.copy'} = + &getfile("/uploaded/$domain/$stu_name/portfolio$directory$file_name"); + if($env{'form.copy'} eq '-1') { + $new_answer = 'problem getting file'; + } else { + $new_answer = $answer_name.'.'.$version.'.'.$answer_ext; + my $copy_result = + &finishuserfileupload($stu_name,$domain,'copy', + '/portfolio'.$directory.$new_answer); + } + undef($env{'form.copy'}); + return ($new_answer); +} + +sub file_name_version_ext { + my ($file)=@_; + my @file_parts = split(/\./, $file); + my ($name,$version,$ext); + if (@file_parts > 1) { + $ext=pop(@file_parts); + if (@file_parts > 1 && $file_parts[-1] =~ /^\d+$/) { + $version=pop(@file_parts); + } + $name=join('.',@file_parts); + } else { + $name=join('.',@file_parts); + } + return($name,$version,$ext); +} + +#----------------------------------------------Get portfolio file permissions + +sub get_portfile_permissions { + my ($domain,$user) = @_; + my %current_permissions = &dump('file_permissions',$domain,$user); + my ($tmp)=keys(%current_permissions); + if ($tmp=~/^error:/) { undef(%current_permissions); } + return \%current_permissions; +} + +#---------------------------------------------Get portfolio file access controls + +sub get_access_controls { + my ($current_permissions,$group,$file) = @_; + my %access; + my $real_file = $file; + $file =~ s/\.meta$//; + if (defined($file)) { + if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') { + foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) { + $access{$real_file}{$control} = $$current_permissions{$file."\0".$control}; + } + } + } else { + foreach my $key (keys(%{$current_permissions})) { + if ($key =~ /\0accesscontrol$/) { + if (defined($group)) { + if ($key !~ m-^\Q$group\E/-) { + next; + } + } + my ($fullpath) = split(/\0/,$key); + if (ref($$current_permissions{$key}) eq 'HASH') { + foreach my $control (keys(%{$$current_permissions{$key}})) { + $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control}; + } + } + } + } + } + return %access; +} + +sub modify_access_controls { + my ($file_name,$changes,$domain,$user)=@_; + my ($outcome,$deloutcome); + my %store_permissions; + my %new_values; + my %new_control; + my %translation; + my @deletions = (); + my $now = time; + if (exists($$changes{'activate'})) { + if (ref($$changes{'activate'}) eq 'HASH') { + my @newitems = sort(keys(%{$$changes{'activate'}})); + my $numnew = scalar(@newitems); + for (my $i=0; $i<$numnew; $i++) { + my $newkey = $newitems[$i]; + my $newid = &Apache::loncommon::get_cgi_id(); + if ($newkey =~ /^\d+:/) { + $newkey =~ s/^(\d+)/$newid/; + $translation{$1} = $newid; + } elsif ($newkey =~ /^\d+_\d+_\d+:/) { + $newkey =~ s/^(\d+_\d+_\d+)/$newid/; + $translation{$1} = $newid; + } + $new_values{$file_name."\0".$newkey} = + $$changes{'activate'}{$newitems[$i]}; + $new_control{$newkey} = $now; + } + } + } + my %todelete; + my %changed_items; + foreach my $action ('delete','update') { + if (exists($$changes{$action})) { + if (ref($$changes{$action}) eq 'HASH') { + foreach my $key (keys(%{$$changes{$action}})) { + my ($itemnum) = ($key =~ /^([^:]+):/); + if ($action eq 'delete') { + $todelete{$itemnum} = 1; + } else { + $changed_items{$itemnum} = $key; + } + } + } + } + } + # get lock on access controls for file. + my $lockhash = { + $file_name."\0".'locked_access_records' => $env{'user.name'}. + ':'.$env{'user.domain'}, + }; + my $tries = 0; + my $gotlock = &newput('file_permissions',$lockhash,$domain,$user); + + while (($gotlock ne 'ok') && $tries < 10) { + $tries ++; + sleep(0.1); + $gotlock = &newput('file_permissions',$lockhash,$domain,$user); + } + if ($gotlock eq 'ok') { + my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name); + my ($tmp)=keys(%curr_permissions); + if ($tmp=~/^error:/) { undef(%curr_permissions); } + if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) { + my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'}; + if (ref($curr_controls) eq 'HASH') { + foreach my $control_item (keys(%{$curr_controls})) { + my ($itemnum) = ($control_item =~ /^([^:]+):/); + if (defined($todelete{$itemnum})) { + push(@deletions,$file_name."\0".$control_item); + } else { + if (defined($changed_items{$itemnum})) { + $new_control{$changed_items{$itemnum}} = $now; + push(@deletions,$file_name."\0".$control_item); + $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}}; + } else { + $new_control{$control_item} = $$curr_controls{$control_item}; + } + } + } + } + } + my ($group); + if (&is_course($domain,$user)) { + ($group,my $file) = split(/\//,$file_name,2); + } + $deloutcome = &del('file_permissions',\@deletions,$domain,$user); + $new_values{$file_name."\0".'accesscontrol'} = \%new_control; + $outcome = &put('file_permissions',\%new_values,$domain,$user); + # remove lock + my @del_lock = ($file_name."\0".'locked_access_records'); + my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user); + my $sqlresult = + &update_portfolio_table($user,$domain,$file_name,'portfolio_access', + $group); + } else { + $outcome = "error: could not obtain lockfile\n"; + } + return ($outcome,$deloutcome,\%new_values,\%translation); +} + +sub make_public_indefinitely { + my (@requrl) = @_; + return &automated_portfile_access('public',\@requrl); +} + +sub automated_portfile_access { + my ($accesstype,$addsref,$delsref,$info) = @_; + unless (($accesstype eq 'public') || ($accesstype eq 'ip')) { + return 'invalid'; + } + my %urls; + if (ref($addsref) eq 'ARRAY') { + foreach my $requrl (@{$addsref}) { + if (&is_portfolio_url($requrl)) { + unless (exists($urls{$requrl})) { + $urls{$requrl} = 'add'; + } + } + } + } + if (ref($delsref) eq 'ARRAY') { + foreach my $requrl (@{$delsref}) { + if (&is_portfolio_url($requrl)) { + unless (exists($urls{$requrl})) { + $urls{$requrl} = 'delete'; + } + } + } + } + unless (keys(%urls)) { + return 'invalid'; + } + my $ip; + if ($accesstype eq 'ip') { + if (ref($info) eq 'HASH') { + if ($info->{'ip'} ne '') { + $ip = $info->{'ip'}; + } + } + if ($ip eq '') { + return 'invalid'; + } + } + my $errors; + my $now = time; + my %current_perms; + foreach my $requrl (sort(keys(%urls))) { + my $action; + if ($urls{$requrl} eq 'add') { + $action = 'activate'; + } else { + $action = 'none'; + } + my $aclnum = 0; + my (undef,$udom,$unum,$file_name,$group) = + &parse_portfolio_url($requrl); + unless (exists($current_perms{$unum.':'.$udom})) { + $current_perms{$unum.':'.$udom} = &get_portfile_permissions($udom,$unum); + } + my %access_controls = &get_access_controls($current_perms{$unum.':'.$udom}, + $group,$file_name); + foreach my $key (keys(%{$access_controls{$file_name}})) { + my ($num,$scope,$end,$start) = + ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/); + if ($scope eq $accesstype) { + if (($start <= $now) && ($end == 0)) { + if ($accesstype eq 'ip') { + if (ref($access_controls{$file_name}{$key}) eq 'HASH') { + if (ref($access_controls{$file_name}{$key}{'ip'}) eq 'ARRAY') { + if (grep(/^\Q$ip\E$/,@{$access_controls{$file_name}{$key}{'ip'}})) { + if ($urls{$requrl} eq 'add') { + $action = 'none'; + last; + } else { + $action = 'delete'; + $aclnum = $num; + last; + } + } + } + } + } elsif ($accesstype eq 'public') { + if ($urls{$requrl} eq 'add') { + $action = 'none'; + last; + } else { + $action = 'delete'; + $aclnum = $num; + last; + } + } + } elsif ($accesstype eq 'public') { + $action = 'update'; + $aclnum = $num; + last; + } + } + } + if ($action eq 'none') { + next; + } else { + my %changes; + my $newend = 0; + my $newstart = $now; + my $newkey = $aclnum.':'.$accesstype.'_'.$newend.'_'.$newstart; + $changes{$action}{$newkey} = { + type => $accesstype, + time => { + start => $newstart, + end => $newend, + }, + }; + if ($accesstype eq 'ip') { + $changes{$action}{$newkey}{'ip'} = [$ip]; + } + my ($outcome,$deloutcome,$new_values,$translation) = + &modify_access_controls($file_name,\%changes,$udom,$unum); + unless ($outcome eq 'ok') { + $errors .= $outcome.' '; + } + } + } + if ($errors) { + $errors =~ s/\s$//; + return $errors; + } else { + return 'ok'; + } +} + +#------------------------------------------------------Get Marked as Read Only + +sub get_marked_as_readonly { + my ($domain,$user,$what,$group) = @_; + my $current_permissions = &get_portfile_permissions($domain,$user); + my @readonly_files; + my $cmp1=$what; + if (ref($what)) { $cmp1=join('',@{$what}) }; + while (my ($file_name,$value) = each(%{$current_permissions})) { + if (defined($group)) { + if ($file_name !~ m-^\Q$group\E/-) { + next; + } + } + if (ref($value) eq "ARRAY"){ + foreach my $stored_what (@{$value}) { + my $cmp2=$stored_what; + if (ref($stored_what) eq 'ARRAY') { + $cmp2=join('',@{$stored_what}); + } + if ($cmp1 eq $cmp2) { + push(@readonly_files, $file_name); + last; + } elsif (!defined($what)) { + push(@readonly_files, $file_name); + last; + } + } + } + } + return @readonly_files; +} +#-----------------------------------------------------------Get Marked as Read Only Hash + +sub get_marked_as_readonly_hash { + my ($current_permissions,$group,$what) = @_; + my %readonly_files; + while (my ($file_name,$value) = each(%{$current_permissions})) { + if (defined($group)) { + if ($file_name !~ m-^\Q$group\E/-) { + next; + } + } + if (ref($value) eq "ARRAY"){ + foreach my $stored_what (@{$value}) { + if (ref($stored_what) eq 'ARRAY') { + foreach my $lock_descriptor(@{$stored_what}) { + if ($lock_descriptor eq 'graded') { + $readonly_files{$file_name} = 'graded'; + } elsif ($lock_descriptor eq 'handback') { + $readonly_files{$file_name} = 'handback'; + } else { + if (!exists($readonly_files{$file_name})) { + $readonly_files{$file_name} = 'locked'; + } + } + } + } + } + } + } + return %readonly_files; +} +# ------------------------------------------------------------ Unmark as Read Only + +sub unmark_as_readonly { + # unmarks $file_name (if $file_name is defined), or all files locked by $what + # for portfolio submissions, $what contains [$symb,$crsid] + my ($domain,$user,$what,$file_name,$group) = @_; + $file_name = &declutter_portfile($file_name); + my $symb_crs = $what; + if (ref($what)) { $symb_crs=join('',@$what); } + my %current_permissions = &dump('file_permissions',$domain,$user,$group); + my ($tmp)=keys(%current_permissions); + if ($tmp=~/^error:/) { undef(%current_permissions); } + my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group); + foreach my $file (@readonly_files) { + my $clean_file = &declutter_portfile($file); + if (defined($file_name) && ($file_name ne $clean_file)) { next; } + my $current_locks = $current_permissions{$file}; + my @new_locks; + my @del_keys; + if (ref($current_locks) eq "ARRAY"){ + foreach my $locker (@{$current_locks}) { + my $compare=$locker; + if (ref($locker) eq 'ARRAY') { + $compare=join('',@{$locker}); + if ($compare ne $symb_crs) { + push(@new_locks, $locker); + } + } + } + if (scalar(@new_locks) > 0) { + $current_permissions{$file} = \@new_locks; + } else { + push(@del_keys, $file); + &del('file_permissions',\@del_keys, $domain, $user); + delete($current_permissions{$file}); + } + } + } + &put('file_permissions',\%current_permissions,$domain,$user); + return; } # ------------------------------------------------------------ Directory lister sub dirlist { - my ($uri,$userdomain,$username,$alternateDirectoryRoot)=@_; - + my ($uri,$userdomain,$username,$getpropath,$getuserdir,$alternateRoot)=@_; $uri=~s/^\///; $uri=~s/\/$//; my ($udom, $uname); - (undef,$udom,$uname)=split(/\//,$uri); - if(defined($userdomain)) { + if ($getuserdir) { $udom = $userdomain; - } - if(defined($username)) { $uname = $username; + } else { + (undef,$udom,$uname)=split(/\//,$uri); + if(defined($userdomain)) { + $udom = $userdomain; + } + if(defined($username)) { + $uname = $username; + } } + my ($dirRoot,$listing,@listing_results); - my $dirRoot = $perlvar{'lonDocRoot'}; - if(defined($alternateDirectoryRoot)) { - $dirRoot = $alternateDirectoryRoot; + $dirRoot = $perlvar{'lonDocRoot'}; + if (defined($getpropath)) { + $dirRoot = &propath($udom,$uname); $dirRoot =~ s/\/$//; + } elsif (defined($getuserdir)) { + my $subdir=$uname.'__'; + $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/; + $dirRoot = $Apache::lonnet::perlvar{'lonUsersDir'} + ."/$udom/$subdir/$uname"; + } elsif (defined($alternateRoot)) { + $dirRoot = $alternateRoot; } if($udom) { if($uname) { - my $listing=reply('ls:'.$dirRoot.'/'.$uri, - homeserver($uname,$udom)); - return split(/:/,$listing); - } elsif(!defined($alternateDirectoryRoot)) { - my $tryserver; - my %allusers=(); - foreach $tryserver (keys %libserv) { - if($hostdom{$tryserver} eq $udom) { - my $listing=reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'. - $udom, $tryserver); - if (($listing ne 'no_such_dir') && ($listing ne 'empty') - && ($listing ne 'con_lost')) { - foreach (split(/:/,$listing)) { - my ($entry,@stat)=split(/&/,$_); - $allusers{$entry}=1; - } - } + my $uhome = &homeserver($uname,$udom); + if ($uhome eq 'no_host') { + return ([],'no_host'); + } + $listing = &reply('ls3:'.&escape('/'.$uri).':'.$getpropath.':' + .$getuserdir.':'.&escape($dirRoot) + .':'.&escape($uname).':'.&escape($udom),$uhome); + if ($listing eq 'unknown_cmd') { + $listing = &reply('ls2:'.$dirRoot.'/'.$uri,$uhome); + } else { + @listing_results = map { &unescape($_); } split(/:/,$listing); + } + if ($listing eq 'unknown_cmd') { + $listing = &reply('ls:'.$dirRoot.'/'.$uri,$uhome); + @listing_results = split(/:/,$listing); + } else { + @listing_results = map { &unescape($_); } split(/:/,$listing); + } + if (($listing eq 'no_such_host') || ($listing eq 'con_lost') || + ($listing eq 'rejected') || ($listing eq 'refused') || + ($listing eq 'no_such_dir') || ($listing eq 'empty')) { + return ([],$listing); + } else { + return (\@listing_results); + } + } elsif(!$alternateRoot) { + my (%allusers,%listerror); + my %servers = &get_servers($udom,'library'); + foreach my $tryserver (keys(%servers)) { + $listing = &reply('ls3:'.&escape("/res/$udom").':::::'. + &escape($udom),$tryserver); + if ($listing eq 'unknown_cmd') { + $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'. + $udom, $tryserver); + } else { + @listing_results = map { &unescape($_); } split(/:/,$listing); } + if ($listing eq 'unknown_cmd') { + $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'. + $udom, $tryserver); + @listing_results = split(/:/,$listing); + } else { + @listing_results = + map { &unescape($_); } split(/:/,$listing); + } + if (($listing eq 'no_such_host') || ($listing eq 'con_lost') || + ($listing eq 'rejected') || ($listing eq 'refused') || + ($listing eq 'no_such_dir') || ($listing eq 'empty')) { + $listerror{$tryserver} = $listing; + } else { + foreach my $line (@listing_results) { + my ($entry) = split(/&/,$line,2); + $allusers{$entry} = 1; + } + } + } + my @alluserslist=(); + foreach my $user (sort(keys(%allusers))) { + push(@alluserslist,$user.'&user'); + } + + if (!%listerror) { + # no errors + return (\@alluserslist); + } elsif (scalar(keys(%servers)) == 1) { + # one library server, one error + my ($key) = keys(%listerror); + return (\@alluserslist, $listerror{$key}); + } elsif ( grep { $_ eq 'con_lost' } values(%listerror) ) { + # con_lost indicates that we might miss data from at least one + # library server + return (\@alluserslist, 'con_lost'); + } else { + # multiple library servers and no con_lost -> data should be + # complete. + return (\@alluserslist); } - my $alluserstr=''; - foreach (sort keys %allusers) { - $alluserstr.=$_.'&user:'; - } - $alluserstr=~s/:$//; - return split(/:/,$alluserstr); - } else { - my @emptyResults = (); - push(@emptyResults, 'missing user name'); - return split(':',@emptyResults); - } - } elsif(!defined($alternateDirectoryRoot)) { - my $tryserver; - my %alldom=(); - foreach $tryserver (keys %libserv) { - $alldom{$hostdom{$tryserver}}=1; - } - my $alldomstr=''; - foreach (sort keys %alldom) { - $alldomstr.=$perlvar{'lonDocRoot'}.'/res/'.$_.'/&domain:'; - } - $alldomstr=~s/:$//; - return split(/:/,$alldomstr); - } else { - my @emptyResults = (); - push(@emptyResults, 'missing domain'); - return split(':',@emptyResults); + + } else { + return ([],'missing username'); + } + } elsif(!defined($getpropath)) { + my $path = $perlvar{'lonDocRoot'}.'/res/'; + my @all_domains = map { $path.$_.'/&domain'; } (sort(&all_domains())); + return (\@all_domains); + } else { + return ([],'missing domain'); } } @@ -3323,25 +11713,17 @@ sub dirlist { # when it was last modified. It will also return an error of -1 # if an error occurs -## -## FIXME: This subroutine assumes its caller knows something about the -## directory structure of the home server for the student ($root). -## Not a good assumption to make. Since this is for looking up files -## in user directories, the full path should be constructed by lond, not -## whatever machine we request data from. -## sub GetFileTimestamp { - my ($studentDomain,$studentName,$filename,$root)=@_; - $studentDomain=~s/\W//g; - $studentName=~s/\W//g; - my $subdir=$studentName.'__'; - $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/; - my $proname="$studentDomain/$subdir/$studentName"; - $proname .= '/'.$filename; - my ($fileStat) = &Apache::lonnet::dirlist($proname, $studentDomain, - $studentName, $root); - my @stats = split('&', $fileStat); - if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') { + my ($studentDomain,$studentName,$filename,$getuserdir)=@_; + $studentDomain = &LONCAPA::clean_domain($studentDomain); + $studentName = &LONCAPA::clean_username($studentName); + my ($fileref,$error) = &dirlist($filename,$studentDomain,$studentName, + undef,$getuserdir); + if (($error eq 'empty') || ($error eq 'no_such_dir')) { + return -1; + } + if (ref($fileref) eq 'ARRAY') { + my @stats = split('&',$fileref->[0]); # @stats contains first the filename, then the stat output return $stats[10]; # so this is 10 instead of 9. } else { @@ -3349,54 +11731,228 @@ sub GetFileTimestamp { } } +sub stat_file { + my ($uri) = @_; + $uri = &clutter_with_no_wrapper($uri); + + my ($udom,$uname,$file); + if ($uri =~ m-^/(uploaded|editupload)/-) { + ($udom,$uname,$file) = + ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-); + $file = 'userfiles/'.$file; + } + if ($uri =~ m-^/res/-) { + ($udom,$uname) = + ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-); + $file = $uri; + } + + if (!$udom || !$uname || !$file) { + # unable to handle the uri + return (); + } + my $getpropath; + if ($file =~ /^userfiles\//) { + $getpropath = 1; + } + my ($listref,$error) = &dirlist($file,$udom,$uname,$getpropath); + if (($error eq 'empty') || ($error eq 'no_such_dir')) { + return (); + } else { + if (ref($listref) eq 'ARRAY') { + my @stats = split('&',$listref->[0]); + shift(@stats); #filename is first + return @stats; + } + } + return (); +} + +# --------------------------------------------------------- recursedirs +# Recursive function to traverse either a specific user's Authoring Space +# or corresponding Published Resource Space, and populate the hash ref: +# $dirhashref with URLs of all directories, and if $filehashref hash +# ref arg is provided, the URLs of any files, excluding versioned, .meta, +# or .rights files in resource space, and .meta, .save, .log, and .bak +# files in Authoring Space. +# +# Inputs: +# +# $is_home - true if current server is home server for user's space +# $context - either: priv, or res respectively for Authoring or Resource Space. +# $docroot - Document root (i.e., /home/httpd/html +# $toppath - Top level directory (i.e., /res/$dom/$uname or /priv/$dom/$uname +# $relpath - Current path (relative to top level). +# $dirhashref - reference to hash to populate with URLs of directories (Required) +# $filehashref - reference to hash to populate with URLs of files (Optional) +# +# Returns: nothing +# +# Side Effects: populates $dirhashref, and $filehashref (if provided). +# +# Currently used by interface/londocs.pm to create linked select boxes for +# directory and filename to import a Course "Author" resource into a course, and +# also to create linked select boxes for Authoring Space and Directory to choose +# save location for creation of a new "standard" problem from the Course Editor. +# + +sub recursedirs { + my ($is_home,$context,$docroot,$toppath,$relpath,$dirhashref,$filehashref) = @_; + return unless (ref($dirhashref) eq 'HASH'); + my $currpath = $docroot.$toppath; + if ($relpath) { + $currpath .= "/$relpath"; + } + my $savefile; + if (ref($filehashref)) { + $savefile = 1; + } + if ($is_home) { + if (opendir(my $dirh,$currpath)) { + foreach my $item (sort { lc($a) cmp lc($b) } grep(!/^\.+$/,readdir($dirh))) { + next if ($item eq ''); + if (-d "$currpath/$item") { + my $newpath; + if ($relpath) { + $newpath = "$relpath/$item"; + } else { + $newpath = $item; + } + $dirhashref->{&Apache::lonlocal::js_escape($newpath)} = 1; + &recursedirs($is_home,$context,$docroot,$toppath,$newpath,$dirhashref,$filehashref); + } elsif ($savefile) { + if ($context eq 'priv') { + unless ($item =~ /\.(meta|save|log|bak|DS_Store)$/) { + $filehashref->{&Apache::lonlocal::js_escape($relpath)}{$item} = 1; + } + } else { + unless (($item =~ /\.meta$/) || ($item =~ /\.\d+\.\w+$/) || ($item =~ /\.rights$/)) { + $filehashref->{&Apache::lonlocal::js_escape($relpath)}{$item} = 1; + } + } + } + } + closedir($dirh); + } + } else { + my ($dirlistref,$listerror) = + &dirlist($toppath.$relpath); + my @dir_lines; + my $dirptr=16384; + if (ref($dirlistref) eq 'ARRAY') { + foreach my $dir_line (sort + { + my ($afile)=split('&',$a,2); + my ($bfile)=split('&',$b,2); + return (lc($afile) cmp lc($bfile)); + } (@{$dirlistref})) { + my ($item,$dom,undef,$testdir,undef,undef,undef,undef,$size,undef,$mtime,undef,undef,undef,$obs,undef) = + split(/\&/,$dir_line,16); + $item =~ s/\s+$//; + next if (($item =~ /^\.\.?$/) || ($obs)); + if ($dirptr&$testdir) { + my $newpath; + if ($relpath) { + $newpath = "$relpath/$item"; + } else { + $relpath = '/'; + $newpath = $item; + } + $dirhashref->{&Apache::lonlocal::js_escape($newpath)} = 1; + &recursedirs($is_home,$context,$docroot,$toppath,$newpath,$dirhashref,$filehashref); + } elsif ($savefile) { + if ($context eq 'priv') { + unless ($item =~ /\.(meta|save|log|bak|DS_Store)$/) { + $filehashref->{$relpath}{$item} = 1; + } + } else { + unless (($item =~ /\.meta$/) || ($item =~ /\.\d+\.\w+$/)) { + $filehashref->{$relpath}{$item} = 1; + } + } + } + } + } + } + return; +} + # -------------------------------------------------------- Value of a Condition +# gets the value of a specific preevaluated condition +# stored in the string $env{user.state.} +# or looks up a condition reference in the bighash and if if hasn't +# already been evaluated recurses into docondval to get the value of +# the condition, then memoizing it to +# $env{user.state..} sub directcondval { my $number=shift; - if ($ENV{'user.state.'.$ENV{'request.course.id'}}) { - return substr($ENV{'user.state.'.$ENV{'request.course.id'}},$number,1); + if (!defined($env{'user.state.'.$env{'request.course.id'}})) { + &Apache::lonuserstate::evalstate(); + } + if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) { + return $env{'user.state.'.$env{'request.course.id'}.".$number"}; + } elsif ($number =~ /^_/) { + my $sub_condition; + if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db', + &GDBM_READER(),0640)) { + $sub_condition=$bighash{'conditions'.$number}; + untie(%bighash); + } + my $value = &docondval($sub_condition); + &appenv({'user.state.'.$env{'request.course.id'}.".$number" => $value}); + return $value; + } + if ($env{'user.state.'.$env{'request.course.id'}}) { + return substr($env{'user.state.'.$env{'request.course.id'}},$number,1); } else { return 2; } } +# get the collection of conditions for this resource sub condval { my $condidx=shift; - my $result=0; my $allpathcond=''; - foreach (split(/\|/,$condidx)) { - if (defined($ENV{'acc.cond.'.$ENV{'request.course.id'}.'.'.$_})) { - $allpathcond.= - '('.$ENV{'acc.cond.'.$ENV{'request.course.id'}.'.'.$_}.')|'; - } + foreach my $cond (split(/\|/,$condidx)) { + if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) { + $allpathcond.= + '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|'; + } } $allpathcond=~s/\|$//; - if ($ENV{'request.course.id'}) { - if ($allpathcond) { - my $operand='|'; - my @stack; - foreach ($allpathcond=~/(\d+|\(|\)|\&|\|)/g) { - if ($_ eq '(') { - push @stack,($operand,$result) - } elsif ($_ eq ')') { - my $before=pop @stack; - if (pop @stack eq '&') { - $result=$result>$before?$before:$result; - } else { - $result=$result>$before?$result:$before; - } - } elsif (($_ eq '&') || ($_ eq '|')) { - $operand=$_; - } else { - my $new=directcondval($_); - if ($operand eq '&') { - $result=$result>$new?$new:$result; - } else { - $result=$result>$new?$result:$new; - } - } - } - } + return &docondval($allpathcond); +} + +#evaluates an expression of conditions +sub docondval { + my ($allpathcond) = @_; + my $result=0; + if ($env{'request.course.id'} + && defined($allpathcond)) { + my $operand='|'; + my @stack; + foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) { + if ($chunk eq '(') { + push @stack,($operand,$result); + } elsif ($chunk eq ')') { + my $before=pop @stack; + if (pop @stack eq '&') { + $result=$result>$before?$before:$result; + } else { + $result=$result>$before?$result:$before; + } + } elsif (($chunk eq '&') || ($chunk eq '|')) { + $operand=$chunk; + } else { + my $new=directcondval($chunk); + if ($operand eq '&') { + $result=$result>$new?$new:$result; + } else { + $result=$result>$new?$result:$new; + } + } + } } return $result; } @@ -3406,41 +11962,203 @@ sub condval { sub devalidatecourseresdata { my ($coursenum,$coursedomain)=@_; my $hashid=$coursenum.':'.$coursedomain; - &devalidate_cache(\%courseresdatacache,$hashid,'courseres'); + &devalidate_cache_new('courseres',$hashid); } + # --------------------------------------------------- Course Resourcedata Query +# +# Parameters: +# $coursenum - Number of the course. +# $coursedomain - Domain at which the course was created. +# Returns: +# A hash of the course parameters along (I think) with timestamps +# and version info. -sub courseresdata { - my ($coursenum,$coursedomain,@which)=@_; +sub get_courseresdata { + my ($coursenum,$coursedomain)=@_; my $coursehom=&homeserver($coursenum,$coursedomain); my $hashid=$coursenum.':'.$coursedomain; - my ($result,$cached)=&is_cached(\%courseresdatacache,$hashid,'courseres'); + my ($result,$cached)=&is_cached_new('courseres',$hashid); + my %dumpreply; unless (defined($cached)) { - my %dumpreply=&dump('resourcedata',$coursedomain,$coursenum); + %dumpreply=&dump('resourcedata',$coursedomain,$coursenum); $result=\%dumpreply; my ($tmp) = keys(%dumpreply); if ($tmp !~ /^(con_lost|error|no_such_host)/i) { - &do_cache(\%courseresdatacache,$hashid,$result,'courseres'); + &do_cache_new('courseres',$hashid,$result,600); } elsif ($tmp =~ /^(con_lost|no_such_host)/) { return $tmp; } elsif ($tmp =~ /^(error)/) { $result=undef; - &do_cache(\%courseresdatacache,$hashid,$result,'courseres'); + &do_cache_new('courseres',$hashid,$result,600); } } + return $result; +} + +sub devalidateuserresdata { + my ($uname,$udom)=@_; + my $hashid="$udom:$uname"; + &devalidate_cache_new('userres',$hashid); +} + +sub get_userresdata { + my ($uname,$udom)=@_; + #most student don\'t have any data set, check if there is some data + if (&EXT_cache_status($udom,$uname)) { return undef; } + + my $hashid="$udom:$uname"; + my ($result,$cached)=&is_cached_new('userres',$hashid); + if (!defined($cached)) { + my %resourcedata=&dump('resourcedata',$udom,$uname); + $result=\%resourcedata; + &do_cache_new('userres',$hashid,$result,600); + } + my ($tmp)=keys(%$result); + if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) { + return $result; + } + #error 2 occurs when the .db doesn't exist + if ($tmp!~/error: 2 /) { + if ((!defined($cached)) || ($tmp ne 'con_lost')) { + &logthis("WARNING:". + " Trying to get resource data for ". + $uname." at ".$udom.": ". + $tmp.""); + } + } elsif ($tmp=~/error: 2 /) { + #&EXT_cache_set($udom,$uname); + &do_cache_new('userres',$hashid,undef,600); + undef($tmp); # not really an error so don't send it back + } + return $tmp; +} +#----------------------------------------------- resdata - return resource data +# Purpose: +# Return resource data for either users or for a course. +# Parameters: +# $name - Course/user name. +# $domain - Name of the domain the user/course is registered on. +# $type - Type of thing $name is (must be 'course' or 'user') +# $mapp - decluttered URL of enclosing map +# $recursed - Ref to scalar -- set to 1, if nested maps have been recursed. +# $recurseup - Ref to array of map URLs, starting with map containing +# $mapp up through hierarchy of nested maps to top level map. +# $courseid - CourseID (first part of param identifier). +# $modifier - Middle part of param identifier. +# $what - Last part of param identifier. +# @which - Array of names of resources desired. +# Returns: +# The value of the first reasource in @which that is found in the +# resource hash. +# Exceptional Conditions: +# If the $type passed in is not valid (not the string 'course' or +# 'user', an undefined reference is returned. +# If none of the resources are found, an undef is returned +sub resdata { + my ($name,$domain,$type,$mapp,$recursed,$recurseup,$courseid, + $modifier,$what,@which)=@_; + my $result; + if ($type eq 'course') { + $result=&get_courseresdata($name,$domain); + } elsif ($type eq 'user') { + $result=&get_userresdata($name,$domain); + } + if (!ref($result)) { return $result; } foreach my $item (@which) { - if (defined($result->{$item})) { - return $result->{$item}; + if ($item->[1] eq 'course') { + if ((ref($recurseup) eq 'ARRAY') && (ref($recursed) eq 'SCALAR')) { + unless ($$recursed) { + @{$recurseup} = &get_map_hierarchy($mapp,$courseid); + $$recursed = 1; + } + foreach my $item (@${recurseup}) { + my $norecursechk=$courseid.$modifier.$item.'___(all).'.$what; + last if (defined($result->{$norecursechk})); + my $recursechk=$courseid.$modifier.$item.'___(rec).'.$what; + if (defined($result->{$recursechk})) { return [$result->{$recursechk},'map']; } + } + } + } + if (defined($result->{$item->[0]})) { + return [$result->{$item->[0]},$item->[1]]; } } return undef; } +sub get_domain_lti { + my ($cdom,$context) = @_; + my ($name,%lti); + if ($context eq 'consumer') { + $name = 'ltitools'; + } elsif ($context eq 'provider') { + $name = 'lti'; + } else { + return %lti; + } + my ($result,$cached)=&is_cached_new($name,$cdom); + if (defined($cached)) { + if (ref($result) eq 'HASH') { + %lti = %{$result}; + } + } else { + my %domconfig = &get_dom('configuration',[$name],$cdom); + if (ref($domconfig{$name}) eq 'HASH') { + %lti = %{$domconfig{$name}}; + my %encdomconfig = &get_dom('encconfig',[$name],$cdom); + if (ref($encdomconfig{$name}) eq 'HASH') { + foreach my $id (keys(%lti)) { + if (ref($encdomconfig{$name}{$id}) eq 'HASH') { + foreach my $item ('key','secret') { + $lti{$id}{$item} = $encdomconfig{$name}{$id}{$item}; + } + } + } + } + } + my $cachetime = 24*60*60; + &do_cache_new($name,$cdom,\%lti,$cachetime); + } + return %lti; +} + +sub get_numsuppfiles { + my ($cnum,$cdom,$ignorecache)=@_; + my $hashid=$cnum.':'.$cdom; + my ($suppcount,$cached); + unless ($ignorecache) { + ($suppcount,$cached) = &is_cached_new('suppcount',$hashid); + } + unless (defined($cached)) { + my $chome=&homeserver($cnum,$cdom); + unless ($chome eq 'no_host') { + ($suppcount,my $supptools,my $errors) = (0,0,0); + my $suppmap = 'supplemental.sequence'; + ($suppcount,$supptools,$errors) = + &Apache::loncommon::recurse_supplemental($cnum,$cdom,$suppmap,$suppcount, + $supptools,$errors); + } + &do_cache_new('suppcount',$hashid,$suppcount,600); + } + return $suppcount; +} + # # EXT resource caching routines # +{ +# Cache (5 seconds) of map hierarchy for speedup of navmaps display +# +# The course for which we cache +my $cachedmapkey=''; +# The cached recursive maps for this course +my %cachedmaps=(); +# When this was last done +my $cachedmaptime=''; + sub clear_EXT_cache_status { &delenv('cache.EXT.'); } @@ -3448,7 +12166,7 @@ sub clear_EXT_cache_status { sub EXT_cache_status { my ($target_domain,$target_user) = @_; my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain; - if (exists($ENV{$cachename}) && ($ENV{$cachename}+600) > time) { + if (exists($env{$cachename}) && ($env{$cachename}+600) > time) { # We know already the user has no data return 1; } else { @@ -3459,13 +12177,13 @@ sub EXT_cache_status { sub EXT_cache_set { my ($target_domain,$target_user) = @_; my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain; - &appenv($cachename => time); + #&appenv({$cachename => time}); } # --------------------------------------------------------- Value of a Variable sub EXT { - my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_; + my ($varname,$symbparm,$udom,$uname,$usection,$recurse,$cid)=@_; unless ($varname) { return ''; } #get real user name/domain, courseid and symb my $courseid; @@ -3474,11 +12192,10 @@ sub EXT { $symbparm=&get_symb_from_alias($symbparm); } if (!($uname && $udom)) { - (my $cursymb,$courseid,$udom,$uname,$publicuser)= - &Apache::lonxml::whichuser($symbparm); + (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm); if (!$symbparm) { $symbparm=$cursymb; } } else { - $courseid=$ENV{'request.course.id'}; + $courseid=$env{'request.course.id'}; } my ($realm,$space,$qualifier,@therest)=split(/\./,$varname); my $rest; @@ -3495,11 +12212,20 @@ sub EXT { if ($realm eq 'user') { # --------------------------------------------------------------- user.resource if ($space eq 'resource') { - if (defined($Apache::lonhomework::parsing_a_problem)) { - return $Apache::lonhomework::history{$qualifierrest}; + if ( (defined($Apache::lonhomework::parsing_a_problem) + || defined($Apache::lonhomework::parsing_a_task)) + && + ($symbparm eq &symbread()) ) { + # if we are in the middle of processing the resource the + # get the value we are planning on committing + if (defined($Apache::lonhomework::results{$qualifierrest})) { + return $Apache::lonhomework::results{$qualifierrest}; + } else { + return $Apache::lonhomework::history{$qualifierrest}; + } } else { my %restored; - if ($publicuser || $ENV{'request.state'} eq 'construct') { + if ($publicuser || $env{'request.state'} eq 'construct') { %restored=&tmprestore($symbparm,$courseid,$udom,$uname); } else { %restored=&restore($symbparm,$courseid,$udom,$uname); @@ -3512,9 +12238,9 @@ sub EXT { return &allowed($qualifier,$rest); # ------------------------------------------ user.preferences, user.environment } elsif (($space eq 'preferences') || ($space eq 'environment')) { - if (($uname eq $ENV{'user.name'}) && - ($udom eq $ENV{'user.domain'})) { - return $ENV{join('.',('environment',$qualifierrest))}; + if (($uname eq $env{'user.name'}) && + ($udom eq $env{'user.domain'})) { + return $env{join('.',('environment',$qualifierrest))}; } else { my %returnhash; if (!$publicuser) { @@ -3526,11 +12252,11 @@ sub EXT { # ----------------------------------------------------------------- user.course } elsif ($space eq 'course') { # FIXME - not supporting calls for a specific user - return $ENV{join('.',('request.course',$qualifier))}; + return $env{join('.',('request.course',$qualifier))}; # ------------------------------------------------------------------- user.role } elsif ($space eq 'role') { # FIXME - not supporting calls for a specific user - my ($role,$where)=split(/\./,$ENV{'request.role'}); + my ($role,$where)=split(/\./,$env{'request.role'}); if ($qualifier eq 'value') { return $role; } elsif ($qualifier eq 'extent') { @@ -3554,150 +12280,197 @@ sub EXT { # ---------------------------------------------- pull stuff out of query string &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, [$spacequalifierrest]); - return $ENV{'form.'.$spacequalifierrest}; + return $env{'form.'.$spacequalifierrest}; } elsif ($realm eq 'request') { # ------------------------------------------------------------- request.browser if ($space eq 'browser') { - if ($qualifier eq 'textremote') { - if (&mt('textual_remote_display') eq 'on') { - return 1; - } else { - return 0; - } - } else { - return $ENV{'browser.'.$qualifier}; - } + return $env{'browser.'.$qualifier}; # ------------------------------------------------------------ request.filename } else { - return $ENV{'request.'.$spacequalifierrest}; + return $env{'request.'.$spacequalifierrest}; } } elsif ($realm eq 'course') { # ---------------------------------------------------------- course.description - return $ENV{'course.'.$courseid.'.'.$spacequalifierrest}; + return $env{'course.'.$courseid.'.'.$spacequalifierrest}; } elsif ($realm eq 'resource') { - my $section; - if (defined($courseid) && $courseid eq $ENV{'request.course.id'}) { + if (defined($courseid) && $courseid eq $env{'request.course.id'}) { + if (!$symbparm) { $symbparm=&symbread(); } + } + + if ($qualifier eq '') { + if ($space eq 'title') { + if (!$symbparm) { $symbparm = $env{'request.filename'}; } + return &gettitle($symbparm); + } + + if ($space eq 'map') { + my ($map) = &decode_symb($symbparm); + return &symbread($map); + } + if ($space eq 'maptitle') { + my ($map) = &decode_symb($symbparm); + return &gettitle($map); + } + if ($space eq 'filename') { + if ($symbparm) { + return &clutter((&decode_symb($symbparm))[2]); + } + return &hreflocation('',$env{'request.filename'}); + } + + if ((defined($courseid)) && ($courseid eq $env{'request.course.id'}) && $symbparm) { + if ($space eq 'visibleparts') { + my $navmap = Apache::lonnavmaps::navmap->new(); + my $item; + if (ref($navmap)) { + my $res = $navmap->getBySymb($symbparm); + my $parts = $res->parts(); + if (ref($parts) eq 'ARRAY') { + $item = join(',',@{$parts}); + } + undef($navmap); + } + return $item; + } + } + } + + my ($section, $group, @groups, @recurseup, $recursed); + my ($courselevelm,$courseleveli,$courselevel,$mapp); + if (($courseid eq '') && ($cid)) { + $courseid = $cid; + } + if (($symbparm && $courseid) && + (($courseid eq $env{'request.course.id'}) || ($courseid eq $cid))) { #print '
'.$space.' - '.$qualifier.' - '.$spacequalifierrest; # ----------------------------------------------------- Cascading lookup scheme - if (!$symbparm) { $symbparm=&symbread(); } my $symbp=$symbparm; - my $mapp=(&decode_symb($symbp))[0]; - + $mapp=&deversion((&decode_symb($symbp))[0]); my $symbparm=$symbp.'.'.$spacequalifierrest; + my $recurseparm=$mapp.'___(rec).'.$spacequalifierrest; my $mapparm=$mapp.'___(all).'.$spacequalifierrest; - - if (($ENV{'user.name'} eq $uname) && - ($ENV{'user.domain'} eq $udom)) { - $section=$ENV{'request.course.sec'}; + if (($env{'user.name'} eq $uname) && + ($env{'user.domain'} eq $udom)) { + $section=$env{'request.course.sec'}; + @groups = split(/:/,$env{'request.course.groups'}); + @groups=&sort_course_groups($courseid,@groups); } else { - if (! defined($usection)) { - $section=&usection($udom,$uname,$courseid); - } else { - $section = $usection; - } + if (! defined($usection)) { + $section=&getsection($udom,$uname,$courseid); + } else { + $section = $usection; + } + @groups = &get_users_groups($udom,$uname,$courseid); } my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest; my $seclevelr=$courseid.'.['.$section.'].'.$symbparm; + my $secleveli=$courseid.'.['.$section.'].'.$recurseparm; my $seclevelm=$courseid.'.['.$section.'].'.$mapparm; - my $courselevel=$courseid.'.'.$spacequalifierrest; + $courselevel=$courseid.'.'.$spacequalifierrest; my $courselevelr=$courseid.'.'.$symbparm; - my $courselevelm=$courseid.'.'.$mapparm; + $courseleveli=$courseid.'.'.$recurseparm; + $courselevelm=$courseid.'.'.$mapparm; # ----------------------------------------------------------- first, check user - #most student don\'t have any data set, check if there is some data - if (! &EXT_cache_status($udom,$uname)) { - my $hashid="$udom:$uname"; - my ($result,$cached)=&is_cached(\%userresdatacache,$hashid, - 'userres'); - if (!defined($cached)) { - my %resourcedata=&get('resourcedata', - [$courselevelr,$courselevelm, - $courselevel],$udom,$uname); - $result=\%resourcedata; - &do_cache(\%userresdatacache,$hashid,$result,'userres'); - } - my ($tmp)=keys(%$result); - if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) { - if ($$result{$courselevelr}) { - return $$result{$courselevelr}; } - if ($$result{$courselevelm}) { - return $$result{$courselevelm}; } - if ($$result{$courselevel}) { - return $$result{$courselevel}; } - } else { - if ($tmp!~/No such file/) { - &logthis("WARNING:". - " Trying to get resource data for ". - $uname." at ".$udom.": ". - $tmp.""); - } elsif ($tmp=~/error:No such file/) { - &EXT_cache_set($udom,$uname); - } elsif ($tmp =~ /^(con_lost|no_such_host)/) { - return $tmp; - } - } - } -# -------------------------------------------------------- second, check course + my $userreply=&resdata($uname,$udom,'user',$mapp,\$recursed, + \@recurseup,$courseid,'.',$spacequalifierrest, + ([$courselevelr,'resource'], + [$courselevelm,'map' ], + [$courseleveli,'map' ], + [$courselevel, 'course' ])); + if (defined($userreply)) { return &get_reply($userreply); } + +# ------------------------------------------------ second, check some of course + my $coursereply; + if (@groups > 0) { + $coursereply = &check_group_parms($courseid,\@groups,$symbparm, + $recurseparm,$mapparm,$spacequalifierrest, + $mapp,\$recursed,\@recurseup); + if (defined($coursereply)) { return &get_reply($coursereply); } + } - my $coursereply=&courseresdata($ENV{'course.'.$courseid.'.num'}, - $ENV{'course.'.$courseid.'.domain'}, - ($seclevelr,$seclevelm,$seclevel, - $courselevelr,$courselevelm, - $courselevel)); - if (defined($coursereply)) { return $coursereply; } + $coursereply=&resdata($env{'course.'.$courseid.'.num'}, + $env{'course.'.$courseid.'.domain'}, + 'course',$mapp,\$recursed,\@recurseup, + $courseid,'.['.$section.'].',$spacequalifierrest, + ([$seclevelr, 'resource'], + [$seclevelm, 'map' ], + [$secleveli, 'map' ], + [$seclevel, 'course' ], + [$courselevelr,'resource'])); + if (defined($coursereply)) { return &get_reply($coursereply); } # ------------------------------------------------------ third, check map parms my %parmhash=(); my $thisparm=''; if (tie(%parmhash,'GDBM_File', - $ENV{'request.course.fn'}.'_parms.db', + $env{'request.course.fn'}.'_parms.db', &GDBM_READER(),0640)) { $thisparm=$parmhash{$symbparm}; untie(%parmhash); } - if ($thisparm) { return $thisparm; } + if ($thisparm) { return &get_reply([$thisparm,'resource']); } } -# --------------------------------------------- last, look in resource metadata - - $spacequalifierrest=~s/\./\_/; +# ------------------------------------------ fourth, look in resource metadata + + my $what = $spacequalifierrest; + $what=~s/\./\_/; my $filename; if (!$symbparm) { $symbparm=&symbread(); } if ($symbparm) { $filename=(&decode_symb($symbparm))[2]; } else { - $filename=$ENV{'request.filename'}; + $filename=$env{'request.filename'}; + } + my $toolsymb; + if (($filename =~ /ext\.tool$/) && ($what ne '0_gradable')) { + $toolsymb = $symbparm; + } + my $metadata=&metadata($filename,$what,$toolsymb); + if (defined($metadata)) { return &get_reply([$metadata,'resource']); } + $metadata=&metadata($filename,'parameter_'.$what,$toolsymb); + if (defined($metadata)) { return &get_reply([$metadata,'resource']); } + +# ----------------------------------------------- fifth, look in rest of course + if ($symbparm && defined($courseid) && + $courseid eq $env{'request.course.id'}) { + my $coursereply=&resdata($env{'course.'.$courseid.'.num'}, + $env{'course.'.$courseid.'.domain'}, + 'course',$mapp,\$recursed,\@recurseup, + $courseid,'.',$spacequalifierrest, + ([$courselevelm,'map' ], + [$courseleveli,'map' ], + [$courselevel, 'course'])); + if (defined($coursereply)) { return &get_reply($coursereply); } } - my $metadata=&metadata($filename,$spacequalifierrest); - if (defined($metadata)) { return $metadata; } - $metadata=&metadata($filename,'parameter_'.$spacequalifierrest); - if (defined($metadata)) { return $metadata; } - # ------------------------------------------------------------------ Cascade up unless ($space eq '0') { my @parts=split(/_/,$space); my $id=pop(@parts); my $part=join('_',@parts); if ($part eq '') { $part='0'; } - my $partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest, + my @partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest, $symbparm,$udom,$uname,$section,1); - if (defined($partgeneral)) { return $partgeneral; } + if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); } } if ($recurse) { return undef; } - my $pack_def=&packages_tab_default($filename,$varname); - if (defined($pack_def)) { return $pack_def; } - + my $pack_def=&packages_tab_default($filename,$varname,$toolsymb); + if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); } # ---------------------------------------------------- Any other user namespace } elsif ($realm eq 'environment') { # ----------------------------------------------------------------- environment - if (($uname eq $ENV{'user.name'})&&($udom eq $ENV{'user.domain'})) { - return $ENV{'environment.'.$spacequalifierrest}; + if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) { + return $env{'environment.'.$spacequalifierrest}; } else { + if ($uname eq 'anonymous' && $udom eq '') { + return ''; + } my %returnhash=&userenvironment($udom,$uname, $spacequalifierrest); return $returnhash{$spacequalifierrest}; @@ -3707,20 +12480,132 @@ sub EXT { if ($space eq 'time') { return time; } + } elsif ($realm eq 'server') { +# ----------------------------------------------------------------- system.time + if ($space eq 'name') { + return $ENV{'SERVER_NAME'}; + } + } elsif ($realm eq 'client') { + if ($space eq 'remote_addr') { + return &get_requestor_ip(); + } } return ''; } +sub get_reply { + my ($reply_value) = @_; + if (ref($reply_value) eq 'ARRAY') { + if (wantarray) { + return @$reply_value; + } + return $reply_value->[0]; + } else { + return $reply_value; + } +} + +sub check_group_parms { + my ($courseid,$groups,$symbparm,$recurseparm,$mapparm,$what,$mapp, + $recursed,$recurseupref) = @_; + my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$recurseparm,'map'], + [$what,'course']); + my $coursereply; + foreach my $group (@{$groups}) { + my @groupitems = (); + foreach my $level (@levels) { + my $item = $courseid.'.['.$group.'].'.$level->[0]; + push(@groupitems,[$item,$level->[1]]); + } + my $coursereply = &resdata($env{'course.'.$courseid.'.num'}, + $env{'course.'.$courseid.'.domain'}, + 'course',$mapp,$recursed,$recurseupref, + $courseid,'.['.$group.'].',$what, + @groupitems); + last if (defined($coursereply)); + } + return $coursereply; +} + +sub get_map_hierarchy { + my ($mapname,$courseid) = @_; + my @recurseup = (); + if ($mapname) { + if (($cachedmapkey eq $courseid) && + (abs($cachedmaptime-time)<5)) { + if (ref($cachedmaps{$mapname}) eq 'ARRAY') { + return @{$cachedmaps{$mapname}}; + } + } + my $navmap = Apache::lonnavmaps::navmap->new(); + if (ref($navmap)) { + @recurseup = $navmap->recurseup_maps($mapname); + undef($navmap); + $cachedmaps{$mapname} = \@recurseup; + $cachedmaptime=time; + $cachedmapkey=$courseid; + } + } + return @recurseup; +} + +} + +sub sort_course_groups { # Sort groups based on defined rankings. Default is sort(). + my ($courseid,@groups) = @_; + @groups = sort(@groups); + return @groups; +} + sub packages_tab_default { - my ($uri,$varname)=@_; + my ($uri,$varname,$toolsymb)=@_; my (undef,$part,$name)=split(/\./,$varname); - my $packages=&metadata($uri,'packages'); - foreach my $package (split(/,/,$packages)) { + + my (@extension,@specifics,$do_default); + foreach my $package (split(/,/,&metadata($uri,'packages',$toolsymb))) { my ($pack_type,$pack_part)=split(/_/,$package,2); - if ($pack_part eq $part) { + if ($pack_type eq 'default') { + $do_default=1; + } elsif ($pack_type eq 'extension') { + push(@extension,[$package,$pack_type,$pack_part]); + } elsif ($pack_part eq $part || $pack_type eq 'part') { + # only look at packages defaults for packages that this id is + push(@specifics,[$package,$pack_type,$pack_part]); + } + } + # first look for a package that matches the requested part id + foreach my $package (@specifics) { + my (undef,$pack_type,$pack_part)=@{$package}; + next if ($pack_part ne $part); + if (defined($packagetab{"$pack_type&$name&default"})) { return $packagetab{"$pack_type&$name&default"}; } } + # look for any possible matching non extension_ package + foreach my $package (@specifics) { + my (undef,$pack_type,$pack_part)=@{$package}; + if (defined($packagetab{"$pack_type&$name&default"})) { + return $packagetab{"$pack_type&$name&default"}; + } + if ($pack_type eq 'part') { $pack_part='0'; } + if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) { + return $packagetab{$pack_type."_".$pack_part."&$name&default"}; + } + } + # look for any posible extension_ match + foreach my $package (@extension) { + my ($package,$pack_type)=@{$package}; + if (defined($packagetab{"$pack_type&$name&default"})) { + return $packagetab{"$pack_type&$name&default"}; + } + if (defined($packagetab{$package."&$name&default"})) { + return $packagetab{$package."&$name&default"}; + } + } + # look for a global default setting + if ($do_default && defined($packagetab{"default&$name&default"})) { + return $packagetab{"default&$name&default"}; + } return undef; } @@ -3742,14 +12627,22 @@ sub add_prefix_and_part { # ---------------------------------------------------------------- Get metadata +my %metaentry; +my %importedpartids; +my %importedrespids; sub metadata { - my ($uri,$what,$liburi,$prefix,$depthcount)=@_; + my ($uri,$what,$toolsymb,$liburi,$prefix,$depthcount)=@_; $uri=&declutter($uri); # if it is a non metadata possible uri return quickly - if (($uri eq '') || (($uri =~ m|^/*adm/|) && ($uri !~ m|^adm/includes|)) || - ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ /^~/) || - ($uri =~ m|home/[^/]+/public_html/|)) { - return ''; + if (($uri eq '') || + (($uri =~ m|^/*adm/|) && + ($uri !~ m|^adm/includes|) && ($uri !~ m{/(smppg|bulletinboard|ext\.tool)$})) || + ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ m{^/*uploaded/.+\.sequence$})) { + return undef; + } + if (($uri =~ /^priv/ || $uri=~m{^home/httpd/html/priv}) + && &Apache::lonxml::get_state('target') =~ /^(|meta)$/) { + return undef; } my $filename=$uri; $uri=~s/\.meta$//; @@ -3759,23 +12652,104 @@ sub metadata { # Everything is cached by the main uri, libraries are never directly cached # if (!defined($liburi)) { - my ($result,$cached)=&is_cached(\%metacache,$uri,'meta'); + my ($result,$cached)=&is_cached_new('meta',$uri); if (defined($cached)) { return $result->{':'.$what}; } } + +# +# If the uri is for an external tool the file from +# which metadata should be retrieved depends on whether +# the tool had been configured to be gradable (set in the Course +# Editor or Resource Editor). +# +# If a valid symb has been included as the third arg in the call +# to &metadata() that can be used to retrieve the value of +# parameter_0_gradable set for the resource, and included in the +# uploaded map containing the tool. The value is retrieved via +# &EXT(), if a valid symb is available. Otherwise the value of +# gradable in the exttool_$marker.db file for the tool instance +# is retrieved via &get(). +# +# When lonuserstate::traceroute() calls lonnet::EXT() for +# hiddenresource and encrypturl (during course initialization) +# the map-level parameter for resource.0.gradable included in the +# uploaded map containing the tool will not yet have been stored +# in the user_course_parms.db file for the user's session, so in +# this case fall back to retrieving gradable status from the +# exttool_$marker.db file. +# +# In order to avoid an infinite loop, &metadata() will return +# before a call to &EXT(), if the uri is for an external tool +# and the $what for which metadata is being requested is +# parameter_0_gradable or 0_gradable. +# + + if ($uri =~ /ext\.tool$/) { + if (($what eq 'parameter_0_gradable') || ($what eq '0_gradable')) { + return; + } else { + my ($checked,$use_passback); + if ($toolsymb ne '') { + (undef,undef,my $tooluri) = &decode_symb($toolsymb); + if (($tooluri eq $uri) && (&EXT('resource.0.gradable',$toolsymb))) { + $checked = 1; + if (&EXT('resource.0.gradable',$toolsymb) =~ /^yes$/i) { + $use_passback = 1; + } + } + } + unless ($checked) { + my ($ignore,$cdom,$cnum,$marker) = split(m{/},$uri); + $marker=~s/\D//g; + if ($marker) { + my %toolsettings=&get('exttool_'.$marker,['gradable'],$cdom,$cnum); + $use_passback = $toolsettings{'gradable'}; + } + } + if ($use_passback) { + $filename = '/home/httpd/html/res/lib/templates/LTIpassback.tool'; + } else { + $filename = '/home/httpd/html/res/lib/templates/LTIstandard.tool'; + } + } + } + { +# Imported parts would go here + my @origfiletagids=(); + my $importedparts=0; + +# Imported responseids would go here + my $importedresponses=0; # # Is this a recursive call for a library? # - my %lcmetacache; +# if (! exists($metacache{$uri})) { +# $metacache{$uri}={}; +# } + my $cachetime = 60*60; if ($liburi) { $liburi=&declutter($liburi); $filename=$liburi; } else { - &devalidate_cache(\%metacache,$uri,'meta'); + &devalidate_cache_new('meta',$uri); + undef(%metaentry); } my %metathesekeys=(); unless ($filename=~/\.meta$/) { $filename.='.meta'; } - my $metastring=&getfile(&filelocation('',&clutter($filename))); + my $metastring; + if ($uri =~ /^priv/ || $uri=~/home\/httpd\/html\/priv/) { + my $which = &hreflocation('','/'.($liburi || $uri)); + $metastring = + &Apache::lonnet::ssi_body($which, + ('grade_target' => 'meta')); + $cachetime = 1; # only want this cached in the child not long term + } elsif (($uri !~ m -^(editupload)/-) && + ($uri !~ m{^/*uploaded/$match_domain/$match_courseid/docs/})) { + my $file=&filelocation('',&clutter($filename)); + #push(@{$metaentry{$uri.'.file'}},$file); + $metastring=&getfile($file); + } my $parser=HTML::LCParser->new(\$metastring); my $token; undef %metathesekeys; @@ -3790,21 +12764,21 @@ sub metadata { if (defined($token->[2]->{'id'})) { $keyroot.='_'.$token->[2]->{'id'}; } - if ($lcmetacache{':packages'}) { - $lcmetacache{':packages'}.=','.$package.$keyroot; + if ($metaentry{':packages'}) { + $metaentry{':packages'}.=','.$package.$keyroot; } else { - $lcmetacache{':packages'}=$package.$keyroot; + $metaentry{':packages'}=$package.$keyroot; } - foreach (keys %packagetab) { + foreach my $pack_entry (keys(%packagetab)) { my $part=$keyroot; $part=~s/^\_//; - if ($_=~/^\Q$package\E\&/ || - $_=~/^\Q$package\E_0\&/) { - my ($pack,$name,$subp)=split(/\&/,$_); + if ($pack_entry=~/^\Q$package\E\&/ || + $pack_entry=~/^\Q$package\E_0\&/) { + my ($pack,$name,$subp)=split(/\&/,$pack_entry); # ignore package.tab specified default values # here &package_tab_default() will fetch those if ($subp eq 'default') { next; } - my $value=$packagetab{$_}; + my $value=$packagetab{$pack_entry}; my $unikey; if ($pack =~ /_0$/) { $unikey='parameter_0_'.$name; @@ -3815,14 +12789,14 @@ sub metadata { if ($subp eq 'display') { $value.=' [Part: '.$part.']'; } - $lcmetacache{':'.$unikey.'.part'}=$part; + $metaentry{':'.$unikey.'.part'}=$part; $metathesekeys{$unikey}=1; - unless (defined($lcmetacache{':'.$unikey.'.'.$subp})) { - $lcmetacache{':'.$unikey.'.'.$subp}=$value; + unless (defined($metaentry{':'.$unikey.'.'.$subp})) { + $metaentry{':'.$unikey.'.'.$subp}=$value; } - if (defined($lcmetacache{':'.$unikey.'.default'})) { - $lcmetacache{':'.$unikey}= - $lcmetacache{':'.$unikey.'.default'}; + if (defined($metaentry{':'.$unikey.'.default'})) { + $metaentry{':'.$unikey}= + $metaentry{':'.$unikey.'.default'}; } } } @@ -3831,52 +12805,155 @@ sub metadata { # This is not a package - some other kind of start tag # my $entry=$token->[1]; - my $unikey; - if ($entry eq 'import') { - $unikey=''; - } else { - $unikey=$entry; - } - $unikey.=&add_prefix_and_part($prefix,$token->[2]->{'part'}); - - if (defined($token->[2]->{'id'})) { - $unikey.='_'.$token->[2]->{'id'}; - } + my $unikey=''; if ($entry eq 'import') { # # Importing a library here # + my $location=$parser->get_text('/import'); + my $dir=$filename; + $dir=~s|[^/]*$||; + $location=&filelocation($dir,$location); + + my $importid=$token->[2]->{'id'}; + my $importmode=$token->[2]->{'importmode'}; +# +# Check metadata for imported file to +# see if it contained response items +# + my ($origfile,@libfilekeys); + my %currmetaentry = %metaentry; + @libfilekeys = split(/,/,&metadata($location,'keys',undef,undef,undef, + $depthcount+1)); + if (grep(/^responseorder$/,@libfilekeys)) { + my $libresponseorder = &metadata($location,'responseorder',undef,undef, + undef,$depthcount+1); + if ($libresponseorder ne '') { + if ($#origfiletagids<0) { + undef(%importedrespids); + undef(%importedpartids); + } + my @respids = split(/\s*,\s*/,$libresponseorder); + if (@respids) { + $importedrespids{$importid} = join(',',map { $importid.'_'.$_ } @respids); + } + if ($importedrespids{$importid} ne '') { + $importedresponses = 1; +# We need to get the original file and the imported file to get the response order correct +# Load and inspect original file + if ($#origfiletagids<0) { + my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri); + $origfile=&getfile($origfilelocation); + @origfiletagids=($origfile=~/<((?:\w+)response|import|part)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs); + } + } + } + } +# Do not overwrite contents of %metaentry hash for resource itself with +# hash populated for imported library file + %metaentry = %currmetaentry; + undef(%currmetaentry); + if ($importmode eq 'part') { +# Import as part(s) + $importedparts=1; +# We need to get the original file and the imported file to get the part order correct +# Good news: we do not need to worry about nested libraries, since parts cannot be nested +# Load and inspect original file if we didn't do that already + if ($#origfiletagids<0) { + undef(%importedrespids); + undef(%importedpartids); + if ($origfile eq '') { + my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri); + $origfile=&getfile($origfilelocation); + @origfiletagids=($origfile=~/<(part|import)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs); + } + } + my @impfilepartids; +# If tag is included in metadata for the imported file +# get the parts in the imported file from that. + if (grep(/^partorder$/,@libfilekeys)) { + %currmetaentry = %metaentry; + my $libpartorder = &metadata($location,'partorder',undef,undef,undef, + $depthcount+1); + %metaentry = %currmetaentry; + undef(%currmetaentry); + if ($libpartorder ne '') { + @impfilepartids=split(/\s*,\s*/,$libpartorder); + } + } else { +# If no tag available, load and inspect imported file + my $impfile=&getfile($location); + @impfilepartids=($impfile=~/]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs); + } + if ($#impfilepartids>=0) { +# This problem had parts + $importedpartids{$token->[2]->{'id'}}=join(',',@impfilepartids); + } else { +# Importing by turning a single problem into a problem part +# It gets the import-tags ID as part-ID + $unikey=&add_prefix_and_part($prefix,$token->[2]->{'id'}); + $importedpartids{$token->[2]->{'id'}}=$token->[2]->{'id'}; + } + } else { +# Import as problem or as normal import + $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'}); + unless ($importmode eq 'problem') { +# Normal import + if (defined($token->[2]->{'id'})) { + $unikey.='_'.$token->[2]->{'id'}; + } + } +# Check metadata for imported file to +# see if it contained parts + if (grep(/^partorder$/,@libfilekeys)) { + %currmetaentry = %metaentry; + my $libpartorder = &metadata($location,'partorder',undef,undef,undef, + $depthcount+1); + %metaentry = %currmetaentry; + undef(%currmetaentry); + if ($libpartorder ne '') { + $importedparts = 1; + $importedpartids{$token->[2]->{'id'}}=$libpartorder; + } + } + } if ($depthcount<20) { - my $location=$parser->get_text('/import'); - my $dir=$filename; - $dir=~s|[^/]*$||; - $location=&filelocation($dir,$location); - foreach (sort(split(/\,/,&metadata($uri,'keys', - $location,$unikey, - $depthcount+1)))) { - $metathesekeys{$_}=1; + my $metadata = + &metadata($uri,'keys',$toolsymb,$location,$unikey, + $depthcount+1); + foreach my $meta (split(',',$metadata)) { + $metaentry{':'.$meta}=$metaentry{':'.$meta}; + $metathesekeys{$meta}=1; } - } - } else { - + } + } else { +# +# Not importing, some other kind of non-package, non-library start tag +# + $unikey=$entry.&add_prefix_and_part($prefix,$token->[2]->{'part'}); + if (defined($token->[2]->{'id'})) { + $unikey.='_'.$token->[2]->{'id'}; + } if (defined($token->[2]->{'name'})) { $unikey.='_'.$token->[2]->{'name'}; } $metathesekeys{$unikey}=1; - foreach (@{$token->[3]}) { - $lcmetacache{':'.$unikey.'.'.$_}=$token->[2]->{$_}; + foreach my $param (@{$token->[3]}) { + $metaentry{':'.$unikey.'.'.$param} = + $token->[2]->{$param}; } my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry)); - my $default=$lcmetacache{':'.$unikey.'.default'}; + my $default=$metaentry{':'.$unikey.'.default'}; if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) { # only ws inside the tag, and not in default, so use default # as value - $lcmetacache{':'.$unikey}=$default; + $metaentry{':'.$unikey}=$default; + } elsif ( $internaltext =~ /\S/ ) { + # something interesting inside the tag + $metaentry{':'.$unikey}=$internaltext; } else { - # either something interesting inside the tag or default - # uninteresting - $lcmetacache{':'.$unikey}=$internaltext; + # no interesting values, don't set a default } # end of not-a-package not-a-library import } @@ -3885,37 +12962,136 @@ sub metadata { # the next is the end of "start tag" } } + my ($extension) = ($uri =~ /\.(\w+)$/); + $extension = lc($extension); + if ($extension eq 'htm') { $extension='html'; } + + foreach my $key (keys(%packagetab)) { + #no specific packages #how's our extension + if ($key!~/^extension_\Q$extension\E&/) { next; } + &metadata_create_package_def($uri,$key,'extension_'.$extension, + \%metathesekeys); + } + + if (!exists($metaentry{':packages'}) + || $packagetab{"import_defaults&extension_$extension"}) { + foreach my $key (keys(%packagetab)) { + #no specific packages well let's get default then + if ($key!~/^default&/) { next; } + &metadata_create_package_def($uri,$key,'default', + \%metathesekeys); + } + } # are there custom rights to evaluate - if ($lcmetacache{':copyright'} eq 'custom') { + if ($metaentry{':copyright'} eq 'custom') { # # Importing a rights file here # unless ($depthcount) { - my $location=$lcmetacache{':customdistributionfile'}; + my $location=$metaentry{':customdistributionfile'}; my $dir=$filename; $dir=~s|[^/]*$||; $location=&filelocation($dir,$location); - foreach (sort(split(/\,/,&metadata($uri,'keys', - $location,'_rights', - $depthcount+1)))) { - $metathesekeys{$_}=1; + my $rights_metadata = + &metadata($uri,'keys',$toolsymb,$location,'_rights', + $depthcount+1); + foreach my $rights (split(',',$rights_metadata)) { + #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights}; + $metathesekeys{$rights}=1; } } } - $lcmetacache{':keys'}=join(',',keys %metathesekeys); - &metadata_generate_part0(\%metathesekeys,\%lcmetacache,$uri); - $lcmetacache{':allpossiblekeys'}=join(',',keys %metathesekeys); - &do_cache(\%metacache,$uri,\%lcmetacache,'meta'); + # uniqifiy package listing + my %seen; + my @uniq_packages = + grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'})); + $metaentry{':packages'} = join(',',@uniq_packages); + + if (($importedresponses) || ($importedparts)) { + if ($importedparts) { +# We had imported parts and need to rebuild partorder + $metaentry{':partorder'}=''; + $metathesekeys{'partorder'}=1; + } + if ($importedresponses) { +# We had imported responses and need to rebuil responseorder + $metaentry{':responseorder'}=''; + $metathesekeys{'responseorder'}=1; + } + for (my $index=0;$index<$#origfiletagids;$index+=2) { + my $origid = $origfiletagids[$index+1]; + if ($origfiletagids[$index] eq 'part') { +# Original part, part of the problem + if ($importedparts) { + $metaentry{':partorder'}.=','.$origid; + } + } elsif ($origfiletagids[$index] eq 'import') { + if ($importedparts) { +# We have imported parts at this position + if ($importedpartids{$origid} ne '') { + $metaentry{':partorder'}.=','.$importedpartids{$origid}; + } + } + if ($importedresponses) { +# We have imported responses at this position + if ($importedrespids{$origid} ne '') { + $metaentry{':responseorder'}.=','.$importedrespids{$origid}; + } + } + } else { +# Original response item, part of the problem + if ($importedresponses) { + $metaentry{':responseorder'}.=','.$origid; + } + } + } + if ($importedparts) { + $metaentry{':partorder'}=~s/^\,//; + } + if ($importedresponses) { + $metaentry{':responseorder'}=~s/^\,//; + } + } + $metaentry{':keys'} = join(',',keys(%metathesekeys)); + &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri); + $metaentry{':allpossiblekeys'}=join(',',keys(%metathesekeys)); + unless ($liburi) { + &do_cache_new('meta',$uri,\%metaentry,$cachetime); + } # this is the end of "was not already recently cached } - return $metacache{$uri}->{':'.$what}; + return $metaentry{':'.$what}; +} + +sub metadata_create_package_def { + my ($uri,$key,$package,$metathesekeys)=@_; + my ($pack,$name,$subp)=split(/\&/,$key); + if ($subp eq 'default') { next; } + + if (defined($metaentry{':packages'})) { + $metaentry{':packages'}.=','.$package; + } else { + $metaentry{':packages'}=$package; + } + my $value=$packagetab{$key}; + my $unikey; + $unikey='parameter_0_'.$name; + $metaentry{':'.$unikey.'.part'}=0; + $$metathesekeys{$unikey}=1; + unless (defined($metaentry{':'.$unikey.'.'.$subp})) { + $metaentry{':'.$unikey.'.'.$subp}=$value; + } + if (defined($metaentry{':'.$unikey.'.default'})) { + $metaentry{':'.$unikey}= + $metaentry{':'.$unikey.'.default'}; + } } sub metadata_generate_part0 { my ($metadata,$metacache,$uri) = @_; my %allnames; - foreach my $metakey (sort keys %$metadata) { + foreach my $metakey (keys(%$metadata)) { if ($metakey=~/^parameter\_(.*)/) { my $part=$$metacache{':'.$metakey.'.part'}; my $name=$$metacache{':'.$metakey.'.name'}; @@ -3934,51 +13110,182 @@ sub metadata_generate_part0 { '.type'}; my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name. '.display'}; - my $expr='\\[Part: '.$allnames{$name}.'\\]'; - $olddis=~s/$expr/\[Part: 0\]/; + my $expr='[Part: '.$allnames{$name}.']'; + $olddis=~s/\Q$expr\E/\[Part: 0\]/; $$metacache{"$key.display"}=$olddis; } } +# ------------------------------------------------------ Devalidate title cache + +sub devalidate_title_cache { + my ($url)=@_; + if (!$env{'request.course.id'}) { return; } + my $symb=&symbread($url); + if (!$symb) { return; } + my $key=$env{'request.course.id'}."\0".$symb; + &devalidate_cache_new('title',$key); +} + +# ------------------------------------------------- Get the title of a course + +sub current_course_title { + return $env{ 'course.' . $env{'request.course.id'} . '.description' }; +} # ------------------------------------------------- Get the title of a resource sub gettitle { my $urlsymb=shift; my $symb=&symbread($urlsymb); - unless ($symb) { - unless ($urlsymb) { $urlsymb=$ENV{'request.filename'}; } - return &metadata($urlsymb,'title'); + if ($symb) { + my $key=$env{'request.course.id'}."\0".$symb; + my ($result,$cached)=&is_cached_new('title',$key); + if (defined($cached)) { + return $result; + } + my ($map,$resid,$url)=&decode_symb($symb); + my $title=''; + if (!$map && $resid == 0 && $url =~/default\.sequence$/) { + $title = $env{'course.'.$env{'request.course.id'}.'.description'}; + } else { + if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db', + &GDBM_READER(),0640)) { + my $mapid=$bighash{'map_pc_'.&clutter($map)}; + $title=$bighash{'title_'.$mapid.'.'.$resid}; + untie(%bighash); + } + } + $title=~s/\&colon\;/\:/gs; + if ($title) { +# Remember both $symb and $title for dynamic metadata + $accesshash{$symb.'___crstitle'}=$title; + $accesshash{&declutter($map).'___'.&declutter($url).'___usage'}=time; +# Cache this title and then return it + return &do_cache_new('title',$key,$title,600); + } + $urlsymb=$url; } - my ($result,$cached)=&is_cached(\%titlecache,$symb,'title',600); - if (defined($cached)) { return $result; } - my ($map,$resid,$url)=&decode_symb($symb); - my $title=''; - my %bighash; - if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db', - &GDBM_READER(),0640)) { - my $mapid=$bighash{'map_pc_'.&clutter($map)}; - $title=$bighash{'title_'.$mapid.'.'.$resid}; - untie %bighash; + my $title=&metadata($urlsymb,'title'); + if (!$title) { $title=(split('/',$urlsymb))[-1]; } + return $title; +} + +sub get_slot { + my ($which,$cnum,$cdom)=@_; + if (!$cnum || !$cdom) { + (undef,my $courseid)=&whichuser(); + $cdom=$env{'course.'.$courseid.'.domain'}; + $cnum=$env{'course.'.$courseid.'.num'}; + } + my $key=join("\0",'slots',$cdom,$cnum,$which); + my %slotinfo; + if (exists($remembered{$key})) { + $slotinfo{$which} = $remembered{$key}; + } else { + %slotinfo=&get('slots',[$which],$cdom,$cnum); + &Apache::lonhomework::showhash(%slotinfo); + my ($tmp)=keys(%slotinfo); + if ($tmp=~/^error:/) { return (); } + $remembered{$key} = $slotinfo{$which}; + } + if (ref($slotinfo{$which}) eq 'HASH') { + return %{$slotinfo{$which}}; + } + return $slotinfo{$which}; +} + +sub get_reservable_slots { + my ($cnum,$cdom,$uname,$udom) = @_; + my $now = time; + my $reservable_info; + my $key=join("\0",'reservableslots',$cdom,$cnum,$uname,$udom); + if (exists($remembered{$key})) { + $reservable_info = $remembered{$key}; + } else { + my %resv; + ($resv{'now_order'},$resv{'now'},$resv{'future_order'},$resv{'future'}) = + &Apache::loncommon::get_future_slots($cnum,$cdom,$now); + $reservable_info = \%resv; + $remembered{$key} = $reservable_info; + } + return $reservable_info; +} + +sub get_course_slots { + my ($cnum,$cdom) = @_; + my $hashid=$cnum.':'.$cdom; + my ($result,$cached) = &Apache::lonnet::is_cached_new('allslots',$hashid); + if (defined($cached)) { + if (ref($result) eq 'HASH') { + return %{$result}; + } + } else { + my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum); + my ($tmp) = keys(%slots); + if ($tmp !~ /^(con_lost|error|no_such_host)/i) { + &do_cache_new('allslots',$hashid,\%slots,600); + return %slots; + } } - $title=~s/\&colon\;/\:/gs; - if ($title) { - return &do_cache(\%titlecache,$symb,$title,'title'); + return; +} + +sub devalidate_slots_cache { + my ($cnum,$cdom)=@_; + my $hashid=$cnum.':'.$cdom; + &devalidate_cache_new('allslots',$hashid); +} + +sub get_coursechange { + my ($cdom,$cnum) = @_; + if ($cdom eq '' || $cnum eq '') { + return unless ($env{'request.course.id'}); + $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + } + my $hashid=$cdom.'_'.$cnum; + my ($change,$cached)=&is_cached_new('crschange',$hashid); + if ((defined($cached)) && ($change ne '')) { + return $change; } else { - return &metadata($urlsymb,'title'); + my %crshash; + %crshash = &get('environment',['internal.contentchange'],$cdom,$cnum); + if ($crshash{'internal.contentchange'} eq '') { + $change = $env{'course.'.$cdom.'_'.$cnum.'.internal.created'}; + if ($change eq '') { + %crshash = &get('environment',['internal.created'],$cdom,$cnum); + $change = $crshash{'internal.created'}; + } + } else { + $change = $crshash{'internal.contentchange'}; + } + my $cachetime = 600; + &do_cache_new('crschange',$hashid,$change,$cachetime); } + return $change; } - + +sub devalidate_coursechange_cache { + my ($cnum,$cdom)=@_; + my $hashid=$cnum.':'.$cdom; + &devalidate_cache_new('crschange',$hashid); +} + # ------------------------------------------------- Update symbolic store links sub symblist { my ($mapname,%newhash)=@_; $mapname=&deversion(&declutter($mapname)); my %hash; - if (($ENV{'request.course.fn'}) && (%newhash)) { - if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'_symb.db', + if (($env{'request.course.fn'}) && (%newhash)) { + if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', &GDBM_WRCREAT(),0640)) { - foreach (keys %newhash) { - $hash{declutter($_)}=$mapname.'___'.&deversion($newhash{$_}); + foreach my $url (keys(%newhash)) { + next if ($url eq 'last_known' + && $env{'form.no_update_last_known'}); + $hash{declutter($url)}=&encode_symb($mapname, + $newhash{$url}->[1], + $newhash{$url}->[0]); } if (untie(%hash)) { return 'ok'; @@ -3991,7 +13298,8 @@ sub symblist { # --------------------------------------------------------------- Verify a symb sub symbverify { - my ($symb,$thisfn)=@_; + my ($symb,$thisurl,$encstate)=@_; + my $thisfn=$thisurl; $thisfn=&declutter($thisfn); # direct jump to resource in page or to a sequence - will construct own symbs if ($thisfn=~/\.(page|sequence)$/) { return 1; } @@ -4001,26 +13309,51 @@ sub symbverify { unless ($url eq $thisfn) { return 0; } $symb=&symbclean($symb); + $thisurl=&deversion($thisurl); $thisfn=&deversion($thisfn); my %bighash; my $okay=0; - if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db', + if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db', &GDBM_READER(),0640)) { - my $ids=$bighash{'ids_'.&clutter($thisfn)}; - unless ($ids) { - $ids=$bighash{'ids_/'.$thisfn}; + if (($thisurl =~ m{^/adm/wrapper/ext/}) || ($thisurl =~ m{^ext/})) { + $thisurl =~ s/\?.+$//; + if ($map =~ m{^uploaded/.+\.page$}) { + $thisurl =~ s{^(/adm/wrapper|)/ext/}{http://}; + $thisurl =~ s{^\Qhttp://https://\E}{https://}; + } + } + my $ids; + if ($map =~ m{^uploaded/.+\.page$}) { + $ids=$bighash{'ids_'.&clutter_with_no_wrapper($thisurl)}; + } else { + $ids=$bighash{'ids_'.&clutter($thisurl)}; + } + unless ($ids) { + my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl; + $ids=$bighash{$idkey}; } if ($ids) { # ------------------------------------------------------------------- Has ID(s) - foreach (split(/\,/,$ids)) { - my ($mapid,$resid)=split(/\./,$_); + if ($thisfn =~ m{^/adm/wrapper/ext/}) { + $symb =~ s/\?.+$//; + } + foreach my $id (split(/\,/,$ids)) { + my ($mapid,$resid)=split(/\./,$id); if ( &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn) - eq $symb) { - $okay=1; - } + eq $symb) { + if (ref($encstate)) { + $$encstate = $bighash{'encrypted_'.$id}; + } + if (($env{'request.role.adv'}) || + ($bighash{'encrypted_'.$id} eq $env{'request.enc'}) || + ($thisurl eq '/adm/navmaps')) { + $okay=1; + last; + } + } } } untie(%bighash); @@ -4032,13 +13365,17 @@ sub symbverify { sub symbclean { my $symb=shift; - + if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); } # remove version from map $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/; # remove version from URL $symb=~s/\.(\d+)\.(\w+)$/\.$2/; +# remove wrapper + + $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/; + $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/; return $symb; } @@ -4050,22 +13387,23 @@ sub encode_symb { } sub decode_symb { - my ($map,$resid,$url)=split(/\_\_\_/,shift); + my $symb=shift; + if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); } + my ($map,$resid,$url)=split(/___/,$symb); return (&fixversion($map),$resid,&fixversion($url)); } sub fixversion { my $fn=shift; - if ($fn=~/^(adm|uploaded|public)/) { return $fn; } + if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; } my %bighash; my $uri=&clutter($fn); - my $key=$ENV{'request.course.id'}.'_'.$uri; + my $key=$env{'request.course.id'}.'_'.$uri; # is this cached? - my ($result,$cached)=&is_cached(\%courseresversioncache,$key, - 'courseresversion',600); + my ($result,$cached)=&is_cached_new('courseresversion',$key); if (defined($cached)) { return $result; } # unfortunately not cached, or expired - if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db', + if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db', &GDBM_READER(),0640)) { if ($bighash{'version_'.$uri}) { my $version=$bighash{'version_'.$uri}; @@ -4076,8 +13414,7 @@ sub fixversion { } untie %bighash; } - return &do_cache - (\%courseresversioncache,$key,&declutter($uri),'courseresversion'); + return &do_cache_new('courseresversion',$key,&declutter($uri),600); } sub deversion { @@ -4089,38 +13426,69 @@ sub deversion { # ------------------------------------------------------ Return symb list entry sub symbread { - my ($thisfn,$donotrecurse)=@_; + my ($thisfn,$donotrecurse,$ignorecachednull,$checkforblock,$possibles, + $ignoresymbdb,$noenccheck)=@_; + my $cache_str='request.symbread.cached.'.$thisfn; + if (defined($env{$cache_str})) { + unless (ref($possibles) eq 'HASH') { + if ($ignorecachednull) { + return $env{$cache_str} unless ($env{$cache_str} eq ''); + } else { + return $env{$cache_str}; + } + } + } # no filename provided? try from environment unless ($thisfn) { - if ($ENV{'request.symb'}) { return &symbclean($ENV{'request.symb'}); } - $thisfn=$ENV{'request.filename'}; + if ($env{'request.symb'}) { + return $env{$cache_str}=&symbclean($env{'request.symb'}); + } + $thisfn=$env{'request.filename'}; } + if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); } # is that filename actually a symb? Verify, clean, and return if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) { - if (&symbverify($thisfn,$1)) { return &symbclean($thisfn); } + if (&symbverify($thisfn,$1)) { + return $env{$cache_str}=&symbclean($thisfn); + } } $thisfn=declutter($thisfn); my %hash; my %bighash; my $syval=''; - if (($ENV{'request.course.fn'}) && ($thisfn)) { - if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'_symb.db', - &GDBM_READER(),0640)) { - $syval=$hash{$thisfn}; - untie(%hash); + if (($env{'request.course.fn'}) && ($thisfn)) { + my $targetfn = $thisfn; + if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) { + $targetfn = 'adm/wrapper/'.$thisfn; + } + if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) { + $targetfn=$1; + } + unless ($ignoresymbdb) { + if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', + &GDBM_READER(),0640)) { + $syval=$hash{$targetfn}; + untie(%hash); + } + if ($syval && $checkforblock) { + my @blockers = &has_comm_blocking('bre',$syval,$thisfn,$ignoresymbdb,$noenccheck); + if (@blockers) { + $syval=''; + } + } } # ---------------------------------------------------------- There was an entry if ($syval) { - unless ($syval=~/\_\d+$/) { - unless ($ENV{'form.request.prefix'}=~/\.(\d+)\_$/) { - &appenv('request.ambiguous' => $thisfn); - return ''; - } - $syval.=$1; - } + #unless ($syval=~/\_\d+$/) { + #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) { + #&appenv({'request.ambiguous' => $thisfn}); + #return $env{$cache_str}=''; + #} + #$syval.=$1; + #} } else { # ------------------------------------------------------- Was not in symb table - if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db', + if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db', &GDBM_READER(),0640)) { # ---------------------------------------------- Get ID(s) for current resource my $ids=$bighash{'ids_'.&clutter($thisfn)}; @@ -4137,19 +13505,59 @@ sub symbread { if ($#possibilities==0) { # ----------------------------------------------- There is only one possibility my ($mapid,$resid)=split(/\./,$ids); - $syval=declutter($bighash{'map_id_'.$mapid}).'___'.$resid; - } elsif (!$donotrecurse) { + $syval=&encode_symb($bighash{'map_id_'.$mapid}, + $resid,$thisfn); + if (ref($possibles) eq 'HASH') { + unless ($bighash{'randomout_'.$ids} || $env{'request.role.adv'}) { + $possibles->{$syval} = 1; + } + } + if ($checkforblock) { + unless ($bighash{'randomout_'.$ids} || $env{'request.role.adv'}) { + my @blockers = &has_comm_blocking('bre',$syval,$bighash{'src_'.$ids},'',$noenccheck); + if (@blockers) { + $syval = ''; + untie(%bighash); + return $env{$cache_str}=''; + } + } + } + } elsif ((!$donotrecurse) || ($checkforblock) || (ref($possibles) eq 'HASH')) { # ------------------------------------------ There is more than one possibility my $realpossible=0; - foreach (@possibilities) { - my $file=$bighash{'src_'.$_}; - if (&allowed('bre',$file)) { - my ($mapid,$resid)=split(/\./,$_); - if ($bighash{'map_type_'.$mapid} ne 'page') { - $realpossible++; - $syval=declutter($bighash{'map_id_'.$mapid}). - '___'.$resid; - } + foreach my $id (@possibilities) { + my $file=$bighash{'src_'.$id}; + my $canaccess; + if (($donotrecurse) || ($checkforblock) || (ref($possibles) eq 'HASH')) { + $canaccess = 1; + } else { + $canaccess = &allowed('bre',$file); + } + if ($canaccess) { + my ($mapid,$resid)=split(/\./,$id); + if ($bighash{'map_type_'.$mapid} ne 'page') { + my $poss_syval=&encode_symb($bighash{'map_id_'.$mapid}, + $resid,$thisfn); + next if ($bighash{'randomout_'.$id} && !$env{'request.role.adv'}); + next unless (($noenccheck) || ($bighash{'encrypted_'.$id} eq $env{'request.enc'})); + if ($checkforblock) { + my @blockers = &has_comm_blocking('bre',$poss_syval,$file,'',$noenccheck); + if (@blockers > 0) { + $syval = ''; + } else { + $syval = $poss_syval; + $realpossible++; + } + } else { + $syval = $poss_syval; + $realpossible++; + } + if ($syval) { + if (ref($possibles) eq 'HASH') { + $possibles->{$syval} = 1; + } + } + } } } if ($realpossible!=1) { $syval=''; } @@ -4157,15 +13565,15 @@ sub symbread { $syval=''; } } - untie(%bighash) - } + untie(%bighash); + } } if ($syval) { - return &symbclean($syval.'___'.$thisfn); + return $env{$cache_str}=$syval; } } - &appenv('request.ambiguous' => $thisfn); - return ''; + &appenv({'request.ambiguous' => $thisfn}); + return $env{$cache_str}=''; } # ---------------------------------------------------------- Return random seed @@ -4179,27 +13587,151 @@ sub numval { $txt=~tr/U-Z/0-5/; $txt=~tr/u-z/0-5/; $txt=~s/\D//g; + if ($_64bit) { if ($txt > 2**32) { return -1; } } return int($txt); } +sub numval2 { + my $txt=shift; + $txt=~tr/A-J/0-9/; + $txt=~tr/a-j/0-9/; + $txt=~tr/K-T/0-9/; + $txt=~tr/k-t/0-9/; + $txt=~tr/U-Z/0-5/; + $txt=~tr/u-z/0-5/; + $txt=~s/\D//g; + my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt); + my $total; + foreach my $val (@txts) { $total+=$val; } + if ($_64bit) { if ($total > 2**32) { return -1; } } + return int($total); +} + +sub numval3 { + use integer; + my $txt=shift; + $txt=~tr/A-J/0-9/; + $txt=~tr/a-j/0-9/; + $txt=~tr/K-T/0-9/; + $txt=~tr/k-t/0-9/; + $txt=~tr/U-Z/0-5/; + $txt=~tr/u-z/0-5/; + $txt=~s/\D//g; + my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt); + my $total; + foreach my $val (@txts) { $total+=$val; } + if ($_64bit) { $total=(($total<<32)>>32); } + return $total; +} + +sub digest { + my ($data)=@_; + my $digest=&Digest::MD5::md5($data); + my ($a,$b,$c,$d)=unpack("iiii",$digest); + my ($e,$f); + { + use integer; + $e=($a+$b); + $f=($c+$d); + if ($_64bit) { + $e=(($e<<32)>>32); + $f=(($f<<32)>>32); + } + } + if (wantarray) { + return ($e,$f); + } else { + my $g; + { + use integer; + $g=($e+$f); + if ($_64bit) { + $g=(($g<<32)>>32); + } + } + return $g; + } +} + sub latest_rnd_algorithm_id { - return '64bit2'; + return '64bit5'; } -sub rndseed { - my ($symb,$courseid,$domain,$username)=@_; +sub get_rand_alg { + my ($courseid)=@_; + if (!$courseid) { $courseid=(&whichuser())[1]; } + if ($courseid) { + return $env{"course.$courseid.rndseed"}; + } + return &latest_rnd_algorithm_id(); +} - my ($wsymb,$wcourseid,$wdomain,$wusername)=&Apache::lonxml::whichuser(); - if (!$symb) { +sub validCODE { + my ($CODE)=@_; + if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; } + return 0; +} + +sub getCODE { + if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; } + if ( (defined($Apache::lonhomework::parsing_a_problem) || + defined($Apache::lonhomework::parsing_a_task) ) && + &validCODE($Apache::lonhomework::history{'resource.CODE'})) { + return $Apache::lonhomework::history{'resource.CODE'}; + } + return undef; +} +# +# Determines the random seed for a specific context: +# +# parameters: +# symb - in course context the symb for the seed. +# course_id - The course id of the form domain_coursenum. +# domain - Domain for the user. +# course - Course for the user. +# cenv - environment of the course. +# +# NOTE: +# All parameters are picked out of the environment if missing +# or not defined. +# If a symb cannot be determined the current time is used instead. +# +# For a given well defined symb, courside, domain, username, +# and course environment, the seed is reproducible. +# +sub rndseed { + my ($symb,$courseid,$domain,$username, $cenv)=@_; + my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser(); + if (!defined($symb)) { unless ($symb=$wsymb) { return time; } } - if (!$courseid) { $courseid=$wcourseid; } - if (!$domain) { $domain=$wdomain; } - if (!$username) { $username=$wusername } - my $which=$ENV{"course.$courseid.rndseed"}; - my $CODE=$ENV{'scantron.CODE'}; - if (defined($CODE)) { - &rndseed_CODE_64bit($symb,$courseid,$domain,$username); + if (!defined $courseid) { + $courseid=$wcourseid; + } + if (!defined $domain) { $domain=$wdomain; } + if (!defined $username) { $username=$wusername } + + my $which; + if (defined($cenv->{'rndseed'})) { + $which = $cenv->{'rndseed'}; + } else { + $which =&get_rand_alg($courseid); + } + if (defined(&getCODE())) { + + if ($which eq '64bit5') { + return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username); + } elsif ($which eq '64bit4') { + return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username); + } else { + return &rndseed_CODE_64bit($symb,$courseid,$domain,$username); + } + } elsif ($which eq '64bit5') { + return &rndseed_64bit5($symb,$courseid,$domain,$username); + } elsif ($which eq '64bit4') { + return &rndseed_64bit4($symb,$courseid,$domain,$username); + } elsif ($which eq '64bit3') { + return &rndseed_64bit3($symb,$courseid,$domain,$username); } elsif ($which eq '64bit2') { return &rndseed_64bit2($symb,$courseid,$domain,$username); } elsif ($which eq '64bit') { @@ -4219,8 +13751,9 @@ sub rndseed_32bit { my $domainseed=unpack("%32C*",$domain) << 7; my $courseseed=unpack("%32C*",$courseid); my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck; - #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck"); - #&Apache::lonxml::debug("rndseed :$num:$symb"); + #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck"); + #&logthis("rndseed :$num:$symb"); + if ($_64bit) { $num=(($num<<32)>>32); } return $num; } } @@ -4239,8 +13772,9 @@ sub rndseed_64bit { my $num1=$symbchck+$symbseed+$namechck; my $num2=$nameseed+$domainseed+$courseseed; - #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck"); - #&Apache::lonxml::debug("rndseed :$num:$symb"); + #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck"); + #&logthis("rndseed :$num:$symb"); + if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); } return "$num1,$num2"; } } @@ -4261,125 +13795,735 @@ sub rndseed_64bit2 { my $num1=$symbchck+$symbseed+$namechck; my $num2=$nameseed+$domainseed+$courseseed; - #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck"); - #&Apache::lonxml::debug("rndseed :$num:$symb"); + #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck"); + #&logthis("rndseed :$num:$symb"); + if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); } return "$num1,$num2"; } } +sub rndseed_64bit3 { + my ($symb,$courseid,$domain,$username)=@_; + { + use integer; + # strings need to be an even # of cahracters long, it it is odd the + # last characters gets thrown away + my $symbchck=unpack("%32S*",$symb.' ') << 21; + my $symbseed=numval2($symb) << 10; + my $namechck=unpack("%32S*",$username.' '); + + my $nameseed=numval2($username) << 21; + my $domainseed=unpack("%32S*",$domain.' ') << 10; + my $courseseed=unpack("%32S*",$courseid.' '); + + my $num1=$symbchck+$symbseed+$namechck; + my $num2=$nameseed+$domainseed+$courseseed; + #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck"); + #&logthis("rndseed :$num1:$num2:$_64bit"); + if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); } + + return "$num1:$num2"; + } +} + +sub rndseed_64bit4 { + my ($symb,$courseid,$domain,$username)=@_; + { + use integer; + # strings need to be an even # of cahracters long, it it is odd the + # last characters gets thrown away + my $symbchck=unpack("%32S*",$symb.' ') << 21; + my $symbseed=numval3($symb) << 10; + my $namechck=unpack("%32S*",$username.' '); + + my $nameseed=numval3($username) << 21; + my $domainseed=unpack("%32S*",$domain.' ') << 10; + my $courseseed=unpack("%32S*",$courseid.' '); + + my $num1=$symbchck+$symbseed+$namechck; + my $num2=$nameseed+$domainseed+$courseseed; + #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck"); + #&logthis("rndseed :$num1:$num2:$_64bit"); + if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); } + + return "$num1:$num2"; + } +} + +sub rndseed_64bit5 { + my ($symb,$courseid,$domain,$username)=@_; + my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username"); + return "$num1:$num2"; +} + sub rndseed_CODE_64bit { my ($symb,$courseid,$domain,$username)=@_; { use integer; my $symbchck=unpack("%32S*",$symb.' ') << 16; - my $symbseed=numval($symb); - my $CODEseed=numval($ENV{'scantron.CODE'}) << 16; + my $symbseed=numval2($symb); + my $CODEchck=unpack("%32S*",&getCODE().' ') << 16; + my $CODEseed=numval(&getCODE()); my $courseseed=unpack("%32S*",$courseid.' '); - my $num1=$symbseed+$CODEseed; - my $num2=$courseseed+$symbchck; - #&Apache::lonxml::debug("$symbseed:$CODEseed|$courseseed:$symbchck"); - #&Apache::lonxml::debug("rndseed :$num1:$num2:$symb"); - return "$num1,$num2"; + my $num1=$symbseed+$CODEchck; + my $num2=$CODEseed+$courseseed+$symbchck; + #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck"); + #&logthis("rndseed :$num1:$num2:$symb"); + if ($_64bit) { $num1=(($num1<<32)>>32); } + if ($_64bit) { $num2=(($num2<<32)>>32); } + return "$num1:$num2"; + } +} + +sub rndseed_CODE_64bit4 { + my ($symb,$courseid,$domain,$username)=@_; + { + use integer; + my $symbchck=unpack("%32S*",$symb.' ') << 16; + my $symbseed=numval3($symb); + my $CODEchck=unpack("%32S*",&getCODE().' ') << 16; + my $CODEseed=numval3(&getCODE()); + my $courseseed=unpack("%32S*",$courseid.' '); + my $num1=$symbseed+$CODEchck; + my $num2=$CODEseed+$courseseed+$symbchck; + #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck"); + #&logthis("rndseed :$num1:$num2:$symb"); + if ($_64bit) { $num1=(($num1<<32)>>32); } + if ($_64bit) { $num2=(($num2<<32)>>32); } + return "$num1:$num2"; } } +sub rndseed_CODE_64bit5 { + my ($symb,$courseid,$domain,$username)=@_; + my $code = &getCODE(); + my ($num1,$num2)=&digest("$symb,$courseid,$code"); + return "$num1:$num2"; +} + sub setup_random_from_rndseed { my ($rndseed)=@_; - if ($rndseed =~/,/) { - my ($num1,$num2)=split(/,/,$rndseed); - &Math::Random::random_set_seed(abs($num1),abs($num2)); + if ($rndseed =~/([,:])/) { + my ($num1,$num2) = map { abs($_); } (split(/[,:]/,$rndseed)); + if ((!$num1) || (!$num2) || ($num1 > 2147483562) || ($num2 > 2147483398)) { + &Math::Random::random_set_seed_from_phrase($rndseed); + } else { + &Math::Random::random_set_seed($num1,$num2); + } } else { &Math::Random::random_set_seed_from_phrase($rndseed); } } +sub latest_receipt_algorithm_id { + return 'receipt3'; +} + +sub recunique { + my $fucourseid=shift; + my $unique; + if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' || + $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) { + $unique=$env{"course.$fucourseid.internal.encseed"}; + } else { + $unique=$perlvar{'lonReceipt'}; + } + return unpack("%32C*",$unique); +} + +sub recprefix { + my $fucourseid=shift; + my $prefix; + if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'|| + $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) { + $prefix=$env{"course.$fucourseid.internal.encpref"}; + } else { + $prefix=$perlvar{'lonHostID'}; + } + return unpack("%32C*",$prefix); +} + sub ireceipt { - my ($funame,$fudom,$fucourseid,$fusymb)=@_; + my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_; + + my $return =&recprefix($fucourseid).'-'; + + if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' || + $env{'request.state'} eq 'construct') { + $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000); + return $return; + } + my $cuname=unpack("%32C*",$funame); my $cudom=unpack("%32C*",$fudom); my $cucourseid=unpack("%32C*",$fucourseid); my $cusymb=unpack("%32C*",$fusymb); - my $cunique=unpack("%32C*",$perlvar{'lonReceipt'}); - return unpack("%32C*",$perlvar{'lonHostID'}).'-'. - ($cunique%$cuname+ - $cunique%$cudom+ - $cusymb%$cuname+ - $cusymb%$cudom+ - $cucourseid%$cuname+ - $cucourseid%$cudom); + my $cunique=&recunique($fucourseid); + my $cpart=unpack("%32S*",$part); + if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') { + + #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom)); + + $return.= ($cunique%$cuname+ + $cunique%$cudom+ + $cusymb%$cuname+ + $cusymb%$cudom+ + $cucourseid%$cuname+ + $cucourseid%$cudom+ + $cpart%$cuname+ + $cpart%$cudom); + } else { + $return.= ($cunique%$cuname+ + $cunique%$cudom+ + $cusymb%$cuname+ + $cusymb%$cudom+ + $cucourseid%$cuname+ + $cucourseid%$cudom); + } + return $return; } sub receipt { - my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser(); - return &ireceipt($name,$domain,$courseid,$symb); + my ($part)=@_; + my ($symb,$courseid,$domain,$name) = &whichuser(); + return &ireceipt($name,$domain,$courseid,$symb,$part); +} + +sub whichuser { + my ($passedsymb)=@_; + my ($symb,$courseid,$domain,$name,$publicuser); + if (defined($env{'form.grade_symb'})) { + my ($tmp_courseid)=&get_env_multiple('form.grade_courseid'); + my $allowed=&allowed('vgr',$tmp_courseid); + if (!$allowed && + exists($env{'request.course.sec'}) && + $env{'request.course.sec'} !~ /^\s*$/) { + $allowed=&allowed('vgr',$tmp_courseid. + '/'.$env{'request.course.sec'}); + } + if ($allowed) { + ($symb)=&get_env_multiple('form.grade_symb'); + $courseid=$tmp_courseid; + ($domain)=&get_env_multiple('form.grade_domain'); + ($name)=&get_env_multiple('form.grade_username'); + return ($symb,$courseid,$domain,$name,$publicuser); + } + } + if (!$passedsymb) { + $symb=&symbread(); + } else { + $symb=$passedsymb; + } + $courseid=$env{'request.course.id'}; + $domain=$env{'user.domain'}; + $name=$env{'user.name'}; + if ($name eq 'public' && $domain eq 'public') { + if (!defined($env{'form.username'})) { + $env{'form.username'}.=time.rand(10000000); + } + $name.=$env{'form.username'}; + } + return ($symb,$courseid,$domain,$name,$publicuser); + } # ------------------------------------------------------------ Serves up a file -# returns either the contents of the file or a -1 +# returns either the contents of the file or +# -1 if the file doesn't exist +# +# if the target is a file that was uploaded via DOCS, +# a check will be made to see if a current copy exists on the local server, +# if it does this will be served, otherwise a copy will be retrieved from +# the home server for the course and stored in /home/httpd/html/userfiles on +# the local server. + sub getfile { - my $file=shift; - if ($file=~/^\/*uploaded\//) { # user file - my $ua=new LWP::UserAgent; - my $request=new HTTP::Request('GET',&tokenwrapper($file)); - my $response=$ua->request($request); - if ($response->is_success()) { - return $response->content; - } else { - return -1; + my ($file) = @_; + if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); } + &repcopy($file); + return &readfile($file); +} + +sub repcopy_userfile { + my ($file)=@_; + my $londocroot = $perlvar{'lonDocRoot'}; + if ($file =~ m{^/*(uploaded|editupload)/}) { $file=&filelocation("",$file); } + if ($file =~ m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; } + my ($cdom,$cnum,$filename) = + ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|); + my $uri="/uploaded/$cdom/$cnum/$filename"; + if (-e "$file") { +# we already have a local copy, check it out + my @fileinfo = stat($file); + my $rtncode; + my $info; + my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode); + if ($lwpresp ne 'ok') { +# there is no such file anymore, even though we had a local copy + if ($rtncode eq '404') { + unlink($file); + } + return -1; + } + if ($info < $fileinfo[9]) { +# nice, the file we have is up-to-date, just say okay + return 'ok'; + } else { +# the file is outdated, get rid of it + unlink($file); + } + } +# one way or the other, at this point, we don't have the file +# construct the correct path for the file + my @parts = ($cdom,$cnum); + if ($filename =~ m|^(.+)/[^/]+$|) { + push @parts, split(/\//,$1); + } + my $path = $perlvar{'lonDocRoot'}.'/userfiles'; + foreach my $part (@parts) { + $path .= '/'.$part; + if (!-e $path) { + mkdir($path,0770); + } + } +# now the path exists for sure +# get a user agent + my $transferfile=$file.'.in.transfer'; +# FIXME: this should flock + if (-e $transferfile) { return 'ok'; } + my $request; + $uri=~s/^\///; + my $homeserver = &homeserver($cnum,$cdom); + my $hostname = &hostname($homeserver); + my $protocol = $protocol{$homeserver}; + $protocol = 'http' if ($protocol ne 'https'); + $request=new HTTP::Request('GET',$protocol.'://'.$hostname.'/raw/'.$uri); + my $response = &LONCAPA::LWPReq::makerequest($homeserver,$request,$transferfile,\%perlvar,'',0,1); +# did it work? + if ($response->is_error()) { + unlink($transferfile); + &logthis("Userfile repcopy failed for $uri"); + return -1; + } +# worked, rename the transfer file + rename($transferfile,$file); + return 'ok'; +} + +sub tokenwrapper { + my $uri=shift; + $uri=~s|^https?\://([^/]+)||; + $uri=~s|^/||; + $env{'user.environment'}=~/\/([^\/]+)\.id/; + my $token=$1; + my (undef,$udom,$uname,$file)=split('/',$uri,4); + if ($udom && $uname && $file) { + $file=~s|(\?\.*)*$||; + &appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}}); + my $homeserver = &homeserver($uname,$udom); + my $hostname = &hostname($homeserver); + my $protocol = $protocol{$homeserver}; + $protocol = 'http' if ($protocol ne 'https'); + return $protocol.'://'.$hostname.'/'.$uri. + (($uri=~/\?/)?'&':'?').'token='.$token. + '&tokenissued='.$perlvar{'lonHostID'}; + } else { + return '/adm/notfound.html'; } - } else { # normal file from res space - &repcopy($file); - if (! -e $file ) { return -1; }; - my $fh=Apache::File->new($file); - my $a=''; - while (<$fh>) { $a .=$_; } - return $a; - } +} + +# call with reqtype HEAD: get last modification time +# call with reqtype GET: get the file contents +# Do not call this with reqtype GET for large files! It loads everything into memory +# +sub getuploaded { + my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_; + $uri=~s/^\///; + my $homeserver = &homeserver($cnum,$cdom); + my $hostname = &hostname($homeserver); + my $protocol = $protocol{$homeserver}; + $protocol = 'http' if ($protocol ne 'https'); + $uri = $protocol.'://'.$hostname.'/raw/'.$uri; + my $request=new HTTP::Request($reqtype,$uri); + my $response=&LONCAPA::LWPReq::makerequest($homeserver,$request,'',\%perlvar,'',0,1); + $$rtncode = $response->code; + if (! $response->is_success()) { + return 'failed'; + } + if ($reqtype eq 'HEAD') { + $$info = &HTTP::Date::str2time( $response->header('Last-modified') ); + } elsif ($reqtype eq 'GET') { + $$info = $response->content; + } + return 'ok'; +} + +sub readfile { + my $file = shift; + if ( (! -e $file ) || ($file eq '') ) { return -1; }; + my $fh; + open($fh,"<",$file); + my $a=''; + while (my $line = <$fh>) { $a .= $line; } + return $a; } sub filelocation { - my ($dir,$file) = @_; - my $location; - $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces - if ($file=~m:^/~:) { # is a contruction space reference - $location = $file; - $location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:; - } elsif ($file=~/^\/*uploaded/) { # is an uploaded file - $location=$file; - } else { - $file=~s/^$perlvar{'lonDocRoot'}//; - $file=~s:^/*res::; - if ( !( $file =~ m:^/:) ) { - $location = $dir. '/'.$file; + my ($dir,$file) = @_; + my $location; + $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces + + if ($file =~ m-^/adm/-) { + $file=~s-^/adm/wrapper/-/-; + $file=~s-^/adm/coursedocs/showdoc/-/-; + } + + if ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) { + $location = $file; + } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file + my ($udom,$uname,$filename)= + ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-); + my $home=&homeserver($uname,$udom); + my $is_me=0; + my @ids=¤t_machine_ids(); + foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } } + if ($is_me) { + $location=propath($udom,$uname).'/userfiles/'.$filename; + } else { + $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'. + $udom.'/'.$uname.'/'.$filename; + } + } elsif ($file =~ m-^/adm/-) { + $location = $perlvar{'lonDocRoot'}.'/'.$file; } else { - $location = '/home/httpd/html/res'.$file; + $file=~s/^\Q$perlvar{'lonDocRoot'}\E//; + $file=~s:^/(res|priv)/:/:; + my $space=$1; + if ( !( $file =~ m:^/:) ) { + $location = $dir. '/'.$file; + } else { + $location = $perlvar{'lonDocRoot'}.'/'.$space.$file; + } } - } - $location=~s://+:/:g; # remove duplicate / - while ($location=~m:/\.\./:) {$location=~ s:/[^/]+/\.\./:/:g;} #remove dir/.. - return $location; + $location=~s://+:/:g; # remove duplicate / + while ($location=~m{/\.\./}) { + if ($location =~ m{/[^/]+/\.\./}) { + $location=~ s{/[^/]+/\.\./}{/}g; + } else { + $location=~ s{/\.\./}{/}g; + } + } #remove dir/.. + while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./ + return $location; } sub hreflocation { my ($dir,$file)=@_; - unless (($file=~/^http:\/\//i) || ($file=~/^\//)) { - my $finalpath=filelocation($dir,$file); - $finalpath=~s/^\/home\/httpd\/html//; - $finalpath=~s-/home/(\w+)/public_html/-/~$1/-; - return $finalpath; + unless (($file=~m-^https?\://-i) || ($file=~m-^/-)) { + $file=filelocation($dir,$file); + } elsif ($file=~m-^/adm/-) { + $file=~s-^/adm/wrapper/-/-; + $file=~s-^/adm/coursedocs/showdoc/-/-; + } + if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) { + $file=~s-^\Q$perlvar{'lonDocRoot'}\E--; + } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) { + $file=~s{^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/} + {/uploaded/$1/$2/}x; + } + if ($file=~ m{^/userfiles/}) { + $file =~ s{^/userfiles/}{/uploaded/}; + } + return $file; +} + + + + + +sub current_machine_domains { + return &machine_domains(&hostname($perlvar{'lonHostID'})); +} + +sub machine_domains { + my ($hostname) = @_; + my @domains; + my %hostname = &all_hostnames(); + while( my($id, $name) = each(%hostname)) { +# &logthis("-$id-$name-$hostname-"); + if ($hostname eq $name) { + push(@domains,&host_domain($id)); + } + } + return @domains; +} + +sub current_machine_ids { + return &machine_ids(&hostname($perlvar{'lonHostID'})); +} + +sub machine_ids { + my ($hostname) = @_; + $hostname ||= &hostname($perlvar{'lonHostID'}); + my @ids; + my %name_to_host = &all_names(); + if (ref($name_to_host{$hostname}) eq 'ARRAY') { + return @{ $name_to_host{$hostname} }; + } + return; +} + +sub additional_machine_domains { + my @domains; + open(my $fh,"<","$perlvar{'lonTabDir'}/expected_domains.tab"); + while( my $line = <$fh>) { + $line =~ s/\s//g; + push(@domains,$line); + } + return @domains; +} + +sub default_login_domain { + my $domain = $perlvar{'lonDefDomain'}; + my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0]; + foreach my $posdom (¤t_machine_domains(), + &additional_machine_domains()) { + if (lc($posdom) eq lc($testdomain)) { + $domain=$posdom; + last; + } + } + return $domain; +} + +sub shared_institution { + my ($dom,$lonhost) = @_; + if ($lonhost eq '') { + $lonhost = $perlvar{'lonHostID'}; + } + my $same_intdom; + my $hostintdom = &internet_dom($lonhost); + if ($hostintdom ne '') { + my %iphost = &get_iphost(); + my $primary_id = &domain($dom,'primary'); + my $primary_ip = &get_host_ip($primary_id); + if (ref($iphost{$primary_ip}) eq 'ARRAY') { + foreach my $id (@{$iphost{$primary_ip}}) { + my $intdom = &internet_dom($id); + if ($intdom eq $hostintdom) { + $same_intdom = 1; + last; + } + } + } + } + return $same_intdom; +} + +sub uses_sts { + my ($ignore_cache) = @_; + my $lonhost = $perlvar{'lonHostID'}; + my $hostname = &hostname($lonhost); + my $sts_on; + if ($protocol{$lonhost} eq 'https') { + my $cachetime = 12*3600; + if (!$ignore_cache) { + ($sts_on,my $cached)=&is_cached_new('stspolicy',$lonhost); + if (defined($cached)) { + return $sts_on; + } + } + my $url = $protocol{$lonhost}.'://'.$hostname.'/index.html'; + my $request=new HTTP::Request('HEAD',$url); + my $response=&LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar,'','','',1); + if ($response->is_success) { + my $has_sts = $response->header('Strict-Transport-Security'); + if ($has_sts eq '') { + $sts_on = 0; + } else { + if ($has_sts =~ /\Qmax-age=\E(\d+)/) { + my $maxage = $1; + if ($maxage) { + $sts_on = 1; + } else { + $sts_on = 0; + } + } else { + $sts_on = 0; + } + } + return &do_cache_new('stspolicy',$lonhost,$sts_on,$cachetime); + } + } + return; +} + +sub waf_allssl { + my ($host_name) = @_; + my $alias = &get_proxy_alias(); + if ($host_name eq '') { + $host_name = $ENV{'SERVER_NAME'}; + } + if (($host_name ne '') && ($alias eq $host_name)) { + my $serverhomedom = &host_domain($perlvar{'lonHostID'}); + my %defdomdefaults = &get_domain_defaults($serverhomedom); + if ($defdomdefaults{'waf_sslopt'}) { + return $defdomdefaults{'waf_sslopt'}; + } + } + return; +} + +sub get_requestor_ip { + my ($r,$nolookup,$noproxy) = @_; + my $from_ip; + if (ref($r)) { + if ($r->can('useragent_ip')) { + if ($noproxy && $r->can('client_ip')) { + $from_ip = $r->client_ip(); + } else { + $from_ip = $r->useragent_ip(); + } + } elsif ($r->connection->can('remote_ip')) { + $from_ip = $r->connection->remote_ip(); + } else { + $from_ip = $r->get_remote_host($nolookup); + } } else { - return $file; + $from_ip = $ENV{'REMOTE_ADDR'}; + } + return $from_ip if ($noproxy); + # Who controls proxy settings for server + my $dom_in_use = $Apache::lonnet::perlvar{'lonDefDomain'}; + my $proxyinfo = &get_proxy_settings($dom_in_use); + if ((ref($proxyinfo) eq 'HASH') && ($from_ip)) { + if ($proxyinfo->{'vpnint'}) { + if (&ip_match($from_ip,$proxyinfo->{'vpnint'})) { + return $from_ip; + } + } + if ($proxyinfo->{'trusted'}) { + if (&ip_match($from_ip,$proxyinfo->{'trusted'})) { + my $ipheader = $proxyinfo->{'ipheader'}; + my ($ip,$xfor); + if (ref($r)) { + if ($ipheader) { + $ip = $r->headers_in->{$ipheader}; + } + $xfor = $r->headers_in->{'X-Forwarded-For'}; + } else { + if ($ipheader) { + $ip = $ENV{'HTTP_'.uc($ipheader)}; + } + $xfor = $ENV{'HTTP_X_FORWARDED_FOR'}; + } + if (($ip eq '') && ($xfor ne '')) { + foreach my $poss_ip (reverse(split(/\s*,\s*/,$xfor))) { + unless (&ip_match($poss_ip,$proxyinfo->{'trusted'})) { + $ip = $poss_ip; + last; + } + } + } + if ($ip ne '') { + return $ip; + } + } + } + } + return $from_ip; +} + +sub get_proxy_settings { + my ($dom_in_use) = @_; + my %domdefaults = &Apache::lonnet::get_domain_defaults($dom_in_use); + my $proxyinfo = { + ipheader => $domdefaults{'waf_ipheader'}, + trusted => $domdefaults{'waf_trusted'}, + vpnint => $domdefaults{'waf_vpnint'}, + vpnext => $domdefaults{'waf_vpnext'}, + sslopt => $domdefaults{'waf_sslopt'}, + }; + return $proxyinfo; +} + +sub ip_match { + my ($ip,$pattern_str) = @_; + $ip=Net::CIDR::cidrvalidate($ip); + if ($ip) { + return Net::CIDR::cidrlookup($ip,split(/\s*,\s*/,$pattern_str)); + } + return; +} + +sub get_proxy_alias { + my ($lonid) = @_; + if ($lonid eq '') { + $lonid = $perlvar{'lonHostID'}; + } + if (!defined(&hostname($lonid))) { + return; + } + if ($lonid ne '') { + my ($alias,$cached) = &is_cached_new('proxyalias',$lonid); + if ($cached) { + return $alias; + } + my $dom = &Apache::lonnet::host_domain($lonid); + if ($dom ne '') { + my $cachetime = 60*60*24; + my %domconfig = + &Apache::lonnet::get_dom('configuration',['wafproxy'],$dom); + my $alias; + if (ref($domconfig{'wafproxy'}) eq 'HASH') { + if (ref($domconfig{'wafproxy'}{'alias'}) eq 'HASH') { + $alias = $domconfig{'wafproxy'}{'alias'}{$lonid}; + } + } + return &do_cache_new('proxyalias',$lonid,$alias,$cachetime); + } + } + return; +} + +sub use_proxy_alias { + my ($r,$lonid) = @_; + my $alias = &get_proxy_alias($lonid); + if ($alias) { + my $dom = &host_domain($lonid); + if ($dom ne '') { + my $proxyinfo = &get_proxy_settings($dom ); + my ($vpnint,$remote_ip); + if (ref($proxyinfo) eq 'HASH') { + $vpnint = $proxyinfo->{'vpnint'}; + if ($vpnint) { + $remote_ip = &get_requestor_ip($r,1,1); + } + } + unless ($vpnint && &ip_match($remote_ip,$vpnint)) { + return $alias; + } + } } + return; } # ------------------------------------------------------------- Declutters URLs sub declutter { my $thisfn=shift; - $thisfn=~s/^$perlvar{'lonDocRoot'}//; + if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); } + unless ($thisfn=~m{^/home/httpd/html/priv/}) { + $thisfn=~s{^/home/httpd/html}{}; + } $thisfn=~s/^\///; + $thisfn=~s|^adm/wrapper/||; + $thisfn=~s|^adm/coursedocs/showdoc/||; $thisfn=~s/^res\///; - $thisfn=~s/\?.+$//; + $thisfn=~s/^priv\///; + unless (($thisfn =~ /^ext/) || ($thisfn =~ /\.(page|sequence)___\d+___ext/)) { + $thisfn=~s/\?.+$//; + } return $thisfn; } @@ -4387,33 +14531,66 @@ sub declutter { sub clutter { my $thisfn='/'.&declutter(shift); - unless ($thisfn=~/^\/(uploaded|adm|userfiles|ext|raw|priv)\//) { + if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/} + || $thisfn =~ m{^/adm/(includes|pages)} ) { $thisfn='/res'.$thisfn; } + if ($thisfn !~m|^/adm|) { + if ($thisfn =~ m|^/ext/|) { + $thisfn='/adm/wrapper'.$thisfn; + } else { + my ($ext) = ($thisfn =~ /\.(\w+)$/); + my $embstyle=&Apache::loncommon::fileembstyle($ext); + if ($embstyle eq 'ssi' + || ($embstyle eq 'hdn') + || ($embstyle eq 'rat') + || ($embstyle eq 'prv') + || ($embstyle eq 'ign')) { + #do nothing with these + } elsif (($embstyle eq 'img') + || ($embstyle eq 'emb') + || ($embstyle eq 'wrp')) { + $thisfn='/adm/wrapper'.$thisfn; + } elsif ($embstyle eq 'unk' + && $thisfn!~/\.(sequence|page)$/) { + $thisfn='/adm/coursedocs/showdoc'.$thisfn; + } else { +# &logthis("Got a blank emb style"); + } + } + } elsif ($thisfn =~ m{^/adm/$match_domain/$match_courseid/\d+/ext\.tool$}) { + $thisfn='/adm/wrapper'.$thisfn; + } return $thisfn; } -# -------------------------------------------------------- Escape Special Chars - -sub escape { - my $str=shift; - $str =~ s/(\W)/"%".unpack('H2',$1)/eg; - return $str; +sub clutter_with_no_wrapper { + my $uri = &clutter(shift); + if ($uri =~ m-^/adm/-) { + $uri =~ s-^/adm/wrapper/-/-; + $uri =~ s-^/adm/coursedocs/showdoc/-/-; + } + return $uri; } -# ----------------------------------------------------- Un-Escape Special Chars - -sub unescape { - my $str=shift; - $str =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; - return $str; +sub freeze_escape { + my ($value)=@_; + if (ref($value)) { + $value=&nfreeze($value); + return '__FROZEN__'.&escape($value); + } + return &escape($value); } -sub mod_perl_version { - if (defined($perlvar{'MODPERL2'})) { - return 2; + +sub thaw_unescape { + my ($value)=@_; + if ($value =~ /^__FROZEN__/) { + substr($value,0,10,undef); + $value=&unescape($value); + return &thaw($value); } - return 1; + return &unescape($value); } sub correct_line_ends { @@ -4426,165 +14603,806 @@ sub correct_line_ends { sub goodbye { &logthis("Starting Shut down"); #not converted to using infrastruture and probably shouldn't be - &logthis(sprintf("%-20s is %s",'%badServerCache',scalar(%badServerCache))); + &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache)))); #converted - &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache))); - &logthis(sprintf("%-20s is %s",'%homecache',scalar(%homecache))); - &logthis(sprintf("%-20s is %s",'%titlecache',scalar(%titlecache))); - &logthis(sprintf("%-20s is %s",'%courseresdatacache',scalar(%courseresdatacache))); +# &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache))); + &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache)))); +# &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache)))); +# &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache)))); #1.1 only - &logthis(sprintf("%-20s is %s",'%userresdatacache',scalar(%userresdatacache))); - &logthis(sprintf("%-20s is %s",'%usectioncache',scalar(%usectioncache))); - &logthis(sprintf("%-20s is %s",'%courseresversioncache',scalar(%courseresversioncache))); - &logthis(sprintf("%-20s is %s",'%resversioncache',scalar(%resversioncache))); +# &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache)))); +# &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache)))); +# &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache)))); +# &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache)))); + &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered)))); + &logthis(sprintf("%-20s is %s",'kicks',$kicks)); + &logthis(sprintf("%-20s is %s",'hits',$hits)); &flushcourselogs(); &logthis("Shutting down"); - return DONE; } -BEGIN { -# ----------------------------------- Read loncapa.conf and loncapa_apache.conf - unless ($readit) { -{ - my $config=Apache::File->new("/etc/httpd/conf/loncapa.conf"); +sub get_dns { + my ($url,$func,$ignore_cache,$nocache,$hashref) = @_; + if (!$ignore_cache) { + my ($content,$cached)= + &Apache::lonnet::is_cached_new('dns',$url); + if ($cached) { + &$func($content,$hashref); + return; + } + } - while (my $configline=<$config>) { - if ($configline =~ /^[^\#]*PerlSetVar/) { - my ($dummy,$varname,$varvalue)=split(/\s+/,$configline); - chomp($varvalue); - $perlvar{$varname}=$varvalue; + my %alldns; + if (open(my $config,"<","$perlvar{'lonTabDir'}/hosts.tab")) { + foreach my $dns (<$config>) { + next if ($dns !~ /^\^(\S*)/x); + my $line = $1; + my ($host,$protocol) = split(/:/,$line); + if ($protocol ne 'https') { + $protocol = 'http'; + } + $alldns{$host} = $protocol; + } + close($config); + } + while (%alldns) { + my ($dns) = sort { $b cmp $a } keys(%alldns); + my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url"); + my $response = &LONCAPA::LWPReq::makerequest('',$request,'',\%perlvar,30,0); + delete($alldns{$dns}); + next if ($response->is_error()); + if ($url eq '/adm/dns/loncapaCRL') { + return &$func($response); + } else { + my @content = split("\n",$response->content); + unless ($nocache) { + &do_cache_new('dns',$url,\@content,30*24*60*60); + } + &$func(\@content,$hashref); + return; + } + } + my $which = (split('/',$url,4))[3]; + if ($which eq 'loncapaCRL') { + my $diskfile = "$perlvar{'lonCertificateDirectory'}/$perlvar{'lonnetCertRevocationList'}"; + if (-e $diskfile) { + &logthis("unable to contact DNS, on disk file $diskfile not updated"); + } else { + &logthis("unable to contact DNS, no on disk file $diskfile available"); + } + } else { + &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n"); + if (open(my $config,"<","$perlvar{'lonTabDir'}/dns_$which.tab")) { + my @content = <$config>; + close($config); + &$func(\@content,$hashref); } } + return; } -{ - my $config=Apache::File->new("/etc/httpd/conf/loncapa_apache.conf"); - while (my $configline=<$config>) { - if ($configline =~ /^[^\#]*PerlSetVar/) { - my ($dummy,$varname,$varvalue)=split(/\s+/,$configline); - chomp($varvalue); - $perlvar{$varname}=$varvalue; +# ------------------------------------------------------Get DNS checksums file +sub parse_dns_checksums_tab { + my ($lines,$hashref) = @_; + my $lonhost = $perlvar{'lonHostID'}; + my $machine_dom = &Apache::lonnet::host_domain($lonhost); + my $loncaparev = &get_server_loncaparev($machine_dom); + my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0]; + my $webconfdir = '/etc/httpd/conf'; + if ($distro =~ /^(ubuntu|debian)(\d+)$/) { + $webconfdir = '/etc/apache2'; + } elsif ($distro =~ /^sles(\d+)$/) { + if ($1 >= 10) { + $webconfdir = '/etc/apache2'; + } + } elsif ($distro =~ /^suse(\d+\.\d+)$/) { + if ($1 >= 10.0) { + $webconfdir = '/etc/apache2'; + } + } + my ($release,$timestamp) = split(/\-/,$loncaparev); + my (%chksum,%revnum); + if (ref($lines) eq 'ARRAY') { + chomp(@{$lines}); + my $version = shift(@{$lines}); + if ($version eq $release) { + foreach my $line (@{$lines}) { + my ($file,$version,$shasum) = split(/,/,$line); + if ($file =~ m{^/etc/httpd/conf}) { + if ($webconfdir eq '/etc/apache2') { + $file =~ s{^\Q/etc/httpd/conf/\E}{$webconfdir/}; + } + } + $chksum{$file} = $shasum; + $revnum{$file} = $version; + } + if (ref($hashref) eq 'HASH') { + %{$hashref} = ( + sums => \%chksum, + versions => \%revnum, + ); + } + } + } + return; +} + +sub fetch_dns_checksums { + my %checksums; + my $machine_dom = &Apache::lonnet::host_domain($perlvar{'lonHostID'}); + my $loncaparev = &get_server_loncaparev($machine_dom,$perlvar{'lonHostID'}); + my ($release,$timestamp) = split(/\-/,$loncaparev); + &get_dns("/adm/dns/checksums/$release",\&parse_dns_checksums_tab,1,1, + \%checksums); + return \%checksums; +} + +sub fetch_crl_pemfile { + return &get_dns("/adm/dns/loncapaCRL",\&save_crl_pem,1,1); +} + +sub save_crl_pem { + my ($response) = @_; + my ($msg,$hadchanges); + if (ref($response)) { + my $now = time; + my $lonca = $perlvar{'lonCertificateDirectory'}.'/'.$perlvar{'lonnetCertificateAuthority'}; + my $tmpcrl = $tmpdir.'/'.$perlvar{'lonnetCertRevocationList'}.'_'.$now.'.'.$$.'.tmp'; + if (open(my $fh,'>',"$tmpcrl")) { + print $fh $response->content; + close($fh); + if (-e $lonca) { + if (open(PIPE,"openssl crl -in $tmpcrl -inform pem -CAfile $lonca -noout 2>&1 |")) { + my $check = ; + close(PIPE); + chomp($check); + if ($check eq 'verify OK') { + my $dest = "$perlvar{'lonCertificateDirectory'}/$perlvar{'lonnetCertRevocationList'}"; + my $backup; + if (-e $dest) { + if (&File::Copy::move($dest,"$dest.bak")) { + $backup = 'ok'; + } + } + if (&File::Copy::move($tmpcrl,$dest)) { + $msg = 'ok'; + if ($backup) { + my (%oldnums,%newnums); + if (open(PIPE, "openssl crl -inform PEM -text -noout -in $dest.bak |grep 'Serial Number' |")) { + while () { + $oldnums{(split(/:/))[1]} = 1; + } + close(PIPE); + } + if (open(PIPE, "openssl crl -inform PEM -text -noout -in $dest |grep 'Serial Number' |")) { + while() { + $newnums{(split(/:/))[1]} = 1; + } + close(PIPE); + } + foreach my $key (sort {$b <=> $a } (keys(%newnums))) { + unless (exists($oldnums{$key})) { + $hadchanges = 1; + last; + } + } + unless ($hadchanges) { + foreach my $key (sort {$b <=> $a } (keys(%oldnums))) { + unless (exists($newnums{$key})) { + $hadchanges = 1; + last; + } + } + } + } + } + } else { + unlink($tmpcrl); + } + } else { + unlink($tmpcrl); + } + } else { + unlink($tmpcrl); + } } } + return ($msg,$hadchanges); } # ------------------------------------------------------------ Read domain file { - my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}. - '/domain.tab'); - %domaindescription = (); - %domain_auth_def = (); - %domain_auth_arg_def = (); - if ($fh) { - while (<$fh>) { - next if (/^(\#|\s*$)/); -# next if /^\#/; - chomp; - my ($domain, $domain_description, $def_auth, $def_auth_arg, - $def_lang, $city, $longi, $lati) = split(/:/,$_); - $domain_auth_def{$domain}=$def_auth; - $domain_auth_arg_def{$domain}=$def_auth_arg; - $domaindescription{$domain}=$domain_description; - $domain_lang_def{$domain}=$def_lang; - $domain_city{$domain}=$city; - $domain_longi{$domain}=$longi; - $domain_lati{$domain}=$lati; + my $loaded; + my %domain; -# &logthis("Domain.tab: $domain, $domain_auth_def{$domain}, $domain_auth_arg_def{$domain},$domaindescription{$domain}"); -# &logthis("Domain.tab: $domain ".$domaindescription{$domain} ); - } + sub parse_domain_tab { + my ($lines) = @_; + foreach my $line (@$lines) { + next if ($line =~ /^(\#|\s*$ )/x); + + chomp($line); + my ($name,@elements) = split(/:/,$line,9); + my %this_domain; + foreach my $field ('description', 'auth_def', 'auth_arg_def', + 'lang_def', 'city', 'longi', 'lati', + 'primary') { + $this_domain{$field} = shift(@elements); + } + $domain{$name} = \%this_domain; + } + } + + sub reset_domain_info { + undef($loaded); + undef(%domain); } + + sub load_domain_tab { + my ($ignore_cache,$nocache) = @_; + &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache,$nocache); + my $fh; + if (open($fh,"<",$perlvar{'lonTabDir'}.'/domain.tab')) { + my @lines = <$fh>; + &parse_domain_tab(\@lines); + } + close($fh); + $loaded = 1; + } + + sub domain { + &load_domain_tab() if (!$loaded); + + my ($name,$what) = @_; + return if ( !exists($domain{$name}) ); + + if (!$what) { + return $domain{$name}{'description'}; + } + return $domain{$name}{$what}; + } + + sub domain_info { + &load_domain_tab() if (!$loaded); + return %domain; + } + } # ------------------------------------------------------------- Read hosts file { - my $config=Apache::File->new("$perlvar{'lonTabDir'}/hosts.tab"); + my %hostname; + my %hostdom; + my %libserv; + my $loaded; + my %name_to_host; + my %internetdom; + my %LC_dns_serv; + + sub parse_hosts_tab { + my ($file) = @_; + foreach my $configline (@$file) { + next if ($configline =~ /^(\#|\s*$ )/x); + chomp($configline); + if ($configline =~ /^\^/) { + if ($configline =~ /^\^([\w.\-]+)/) { + $LC_dns_serv{$1} = 1; + } + next; + } + my ($id,$domain,$role,$name,$protocol,$intdom)=split(/:/,$configline); + $name=~s/\s//g; + if ($id && $domain && $role && $name) { + if ((exists($hostname{$id})) && ($hostname{$id} ne '')) { + my $curr = $hostname{$id}; + my $skip; + if (ref($name_to_host{$curr}) eq 'ARRAY') { + if (($curr eq $name) && (@{$name_to_host{$curr}} == 1)) { + $skip = 1; + } else { + @{$name_to_host{$curr}} = grep { $_ ne $id } @{$name_to_host{$curr}}; + } + } + unless ($skip) { + push(@{$name_to_host{$name}},$id); + } + } else { + push(@{$name_to_host{$name}},$id); + } + $hostname{$id}=$name; + $hostdom{$id}=$domain; + if ($role eq 'library') { $libserv{$id}=$name; } + if (defined($protocol)) { + if ($protocol eq 'https') { + $protocol{$id} = $protocol; + } else { + $protocol{$id} = 'http'; + } + } else { + $protocol{$id} = 'http'; + } + if (defined($intdom)) { + $internetdom{$id} = $intdom; + } + } + } + } + + sub reset_hosts_info { + &purge_remembered(); + &reset_domain_info(); + &reset_hosts_ip_info(); + undef(%internetdom); + undef(%name_to_host); + undef(%hostname); + undef(%hostdom); + undef(%libserv); + undef($loaded); + } - while (my $configline=<$config>) { - next if ($configline =~ /^(\#|\s*$)/); - chomp($configline); - my ($id,$domain,$role,$name,$ip,$domdescr)=split(/:/,$configline); - if ($id && $domain && $role && $name && $ip) { - $hostname{$id}=$name; - $hostdom{$id}=$domain; - $hostip{$id}=$ip; - $iphost{$ip}=$id; - if ($role eq 'library') { $libserv{$id}=$name; } - } else { - if ($configline) { - &logthis("Skipping hosts.tab line -$configline-"); - } - } + sub load_hosts_tab { + my ($ignore_cache,$nocache) = @_; + &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache,$nocache); + open(my $config,"<","$perlvar{'lonTabDir'}/hosts.tab"); + my @config = <$config>; + &parse_hosts_tab(\@config); + close($config); + $loaded=1; + } + + sub hostname { + &load_hosts_tab() if (!$loaded); + + my ($lonid) = @_; + return $hostname{$lonid}; + } + + sub all_hostnames { + &load_hosts_tab() if (!$loaded); + + return %hostname; + } + + sub all_names { + my ($ignore_cache,$nocache) = @_; + &load_hosts_tab($ignore_cache,$nocache) if (!$loaded); + + return %name_to_host; + } + + sub all_host_domain { + &load_hosts_tab() if (!$loaded); + return %hostdom; } + + sub all_host_intdom { + &load_hosts_tab() if (!$loaded); + return %internetdom; + } + + sub is_library { + &load_hosts_tab() if (!$loaded); + + return exists($libserv{$_[0]}); + } + + sub all_library { + &load_hosts_tab() if (!$loaded); + + return %libserv; + } + + sub unique_library { + #2x reverse removes all hostnames that appear more than once + my %unique = reverse &all_library(); + return reverse %unique; + } + + sub get_servers { + &load_hosts_tab() if (!$loaded); + + my ($domain,$type) = @_; + my %possible_hosts = ($type eq 'library') ? %libserv + : %hostname; + my %result; + if (ref($domain) eq 'ARRAY') { + while ( my ($host,$hostname) = each(%possible_hosts)) { + if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) { + $result{$host} = $hostname; + } + } + } else { + while ( my ($host,$hostname) = each(%possible_hosts)) { + if ($hostdom{$host} eq $domain) { + $result{$host} = $hostname; + } + } + } + return %result; + } + + sub get_unique_servers { + my %unique = reverse &get_servers(@_); + return reverse %unique; + } + + sub host_domain { + &load_hosts_tab() if (!$loaded); + + my ($lonid) = @_; + return $hostdom{$lonid}; + } + + sub all_domains { + &load_hosts_tab() if (!$loaded); + + my %seen; + my @uniq = grep(!$seen{$_}++, values(%hostdom)); + return @uniq; + } + + sub internet_dom { + &load_hosts_tab() if (!$loaded); + + my ($lonid) = @_; + return $internetdom{$lonid}; + } + + sub is_LC_dns { + &load_hosts_tab() if (!$loaded); + + my ($hostname) = @_; + return exists($LC_dns_serv{$hostname}); + } + +} + +{ + my %iphost; + my %name_to_ip; + my %lonid_to_ip; + + sub get_hosts_from_ip { + my ($ip) = @_; + my %iphosts = &get_iphost(); + if (ref($iphosts{$ip})) { + return @{$iphosts{$ip}}; + } + return; + } + + sub reset_hosts_ip_info { + undef(%iphost); + undef(%name_to_ip); + undef(%lonid_to_ip); + } + + sub get_host_ip { + my ($lonid) = @_; + if (exists($lonid_to_ip{$lonid})) { + return $lonid_to_ip{$lonid}; + } + my $name=&hostname($lonid); + my $ip = gethostbyname($name); + return if (!$ip || length($ip) ne 4); + $ip=inet_ntoa($ip); + $name_to_ip{$name} = $ip; + $lonid_to_ip{$lonid} = $ip; + return $ip; + } + + sub get_iphost { + my ($ignore_cache,$nocache) = @_; + + if (!$ignore_cache) { + if (%iphost) { + return %iphost; + } + my ($ip_info,$cached)= + &Apache::lonnet::is_cached_new('iphost','iphost'); + if ($cached) { + %iphost = %{$ip_info->[0]}; + %name_to_ip = %{$ip_info->[1]}; + %lonid_to_ip = %{$ip_info->[2]}; + return %iphost; + } + } + + # get yesterday's info for fallback + my %old_name_to_ip; + my ($ip_info,$cached)= + &Apache::lonnet::is_cached_new('iphost','iphost'); + if ($cached) { + %old_name_to_ip = %{$ip_info->[1]}; + } + + my %name_to_host = &all_names($ignore_cache,$nocache); + foreach my $name (keys(%name_to_host)) { + my $ip; + if (!exists($name_to_ip{$name})) { + $ip = gethostbyname($name); + if (!$ip || length($ip) ne 4) { + if (defined($old_name_to_ip{$name})) { + $ip = $old_name_to_ip{$name}; + &logthis("Can't find $name defaulting to old $ip"); + } else { + &logthis("Name $name no IP found"); + next; + } + } else { + $ip=inet_ntoa($ip); + } + $name_to_ip{$name} = $ip; + } else { + $ip = $name_to_ip{$name}; + } + foreach my $id (@{ $name_to_host{$name} }) { + $lonid_to_ip{$id} = $ip; + } + push(@{$iphost{$ip}},@{$name_to_host{$name}}); + } + unless ($nocache) { + &do_cache_new('iphost','iphost', + [\%iphost,\%name_to_ip,\%lonid_to_ip], + 48*60*60); + } + + return %iphost; + } + + # + # Given a DNS returns the loncapa host name for that DNS + # + sub host_from_dns { + my ($dns) = @_; + my @hosts; + my $ip; + + if (exists($name_to_ip{$dns})) { + $ip = $name_to_ip{$dns}; + } + if (!$ip) { + $ip = gethostbyname($dns); # Initial translation to IP is in net order. + if (length($ip) == 4) { + $ip = &IO::Socket::inet_ntoa($ip); + } + } + if ($ip) { + @hosts = get_hosts_from_ip($ip); + return $hosts[0]; + } + return undef; + } + + sub get_internet_names { + my ($lonid) = @_; + return if ($lonid eq ''); + my ($idnref,$cached)= + &Apache::lonnet::is_cached_new('internetnames',$lonid); + if ($cached) { + return $idnref; + } + my $ip = &get_host_ip($lonid); + my @hosts = &get_hosts_from_ip($ip); + my %iphost = &get_iphost(); + my (@idns,%seen); + foreach my $id (@hosts) { + my $dom = &host_domain($id); + my $prim_id = &domain($dom,'primary'); + my $prim_ip = &get_host_ip($prim_id); + next if ($seen{$prim_ip}); + if (ref($iphost{$prim_ip}) eq 'ARRAY') { + foreach my $id (@{$iphost{$prim_ip}}) { + my $intdom = &internet_dom($id); + unless (grep(/^\Q$intdom\E$/,@idns)) { + push(@idns,$intdom); + } + } + } + $seen{$prim_ip} = 1; + } + return &do_cache_new('internetnames',$lonid,\@idns,12*60*60); + } + +} + +sub all_loncaparevs { + return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11); } +# ---------------------------------------------------------- Read loncaparev table +{ + sub load_loncaparevs { + if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") { + if (open(my $config,"<","$perlvar{'lonTabDir'}/loncaparevs.tab")) { + while (my $configline=<$config>) { + chomp($configline); + my ($hostid,$loncaparev)=split(/:/,$configline); + $loncaparevs{$hostid}=$loncaparev; + } + close($config); + } + } + } +} + +# ---------------------------------------------------------- Read serverhostID table +{ + sub load_serverhomeIDs { + if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") { + if (open(my $config,"<","$perlvar{'lonTabDir'}/serverhomeIDs.tab")) { + while (my $configline=<$config>) { + chomp($configline); + my ($name,$id)=split(/:/,$configline); + $serverhomeIDs{$name}=$id; + } + close($config); + } + } + } +} + + +BEGIN { + +# ----------------------------------- Read loncapa.conf and loncapa_apache.conf + unless ($readit) { +{ + my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf'); + %perlvar = (%perlvar,%{$configvars}); +} + + # ------------------------------------------------------ Read spare server file { - my $config=Apache::File->new("$perlvar{'lonTabDir'}/spare.tab"); + open(my $config,"<","$perlvar{'lonTabDir'}/spare.tab"); while (my $configline=<$config>) { chomp($configline); if ($configline) { - $spareid{$configline}=1; + my ($host,$type) = split(':',$configline,2); + if (!defined($type) || $type eq '') { $type = 'default' }; + push(@{ $spareid{$type} }, $host); } } + close($config); } # ------------------------------------------------------------ Read permissions { - my $config=Apache::File->new("$perlvar{'lonTabDir'}/roles.tab"); + open(my $config,"<","$perlvar{'lonTabDir'}/roles.tab"); while (my $configline=<$config>) { - chomp($configline); - if ($configline) { - my ($role,$perm)=split(/ /,$configline); - if ($perm ne '') { $pr{$role}=$perm; } - } + chomp($configline); + if ($configline) { + my ($role,$perm)=split(/ /,$configline); + if ($perm ne '') { $pr{$role}=$perm; } + } } + close($config); } # -------------------------------------------- Read plain texts for permissions { - my $config=Apache::File->new("$perlvar{'lonTabDir'}/rolesplain.tab"); + open(my $config,"<","$perlvar{'lonTabDir'}/rolesplain.tab"); while (my $configline=<$config>) { - chomp($configline); - if ($configline) { - my ($short,$plain)=split(/:/,$configline); - if ($plain ne '') { $prp{$short}=$plain; } - } + chomp($configline); + if ($configline) { + my ($short,@plain)=split(/:/,$configline); + %{$prp{$short}} = (); + if (@plain > 0) { + $prp{$short}{'std'} = $plain[0]; + for (my $i=1; $i<@plain; $i++) { + $prp{$short}{'alt'.$i} = $plain[$i]; + } + } + } } + close($config); } # ---------------------------------------------------------- Read package table { - my $config=Apache::File->new("$perlvar{'lonTabDir'}/packages.tab"); + open(my $config,"<","$perlvar{'lonTabDir'}/packages.tab"); while (my $configline=<$config>) { - chomp($configline); - my ($short,$plain)=split(/:/,$configline); - my ($pack,$name)=split(/\&/,$short); - if ($plain ne '') { - $packagetab{$pack.'&'.$name.'&name'}=$name; - $packagetab{$short}=$plain; - } + if ($configline !~ /\S/ || $configline=~/^#/) { next; } + chomp($configline); + my ($short,$plain)=split(/:/,$configline); + my ($pack,$name)=split(/\&/,$short); + if ($plain ne '') { + $packagetab{$pack.'&'.$name.'&name'}=$name; + $packagetab{$short}=$plain; + } + } + close($config); +} + +# ---------------------------------------------------------- Read loncaparev table + +&load_loncaparevs(); + +# ---------------------------------------------------------- Read serverhostID table + +&load_serverhomeIDs(); + +# ---------------------------------------------------------- Read releaseslist XML +{ + my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml'; + if (-e $file) { + my $parser = HTML::LCParser->new($file); + while (my $token = $parser->get_token()) { + if ($token->[0] eq 'S') { + my $item = $token->[1]; + my $name = $token->[2]{'name'}; + my $value = $token->[2]{'value'}; + my $valuematch = $token->[2]{'valuematch'}; + my $namematch = $token->[2]{'namematch'}; + if ($item eq 'parameter') { + if (($namematch ne '') || (($name ne '') && ($value ne '' || $valuematch ne ''))) { + my $release = $parser->get_text(); + $release =~ s/(^\s*|\s*$ )//gx; + $needsrelease{$item.':'.$name.':'.$value.':'.$valuematch.':'.$namematch} = $release; + } + } elsif ($item ne '' && $name ne '') { + my $release = $parser->get_text(); + $release =~ s/(^\s*|\s*$ )//gx; + $needsrelease{$item.':'.$name.':'.$value} = $release; + } + } + } + } +} + +# ---------------------------------------------------------- Read managers table +{ + if (-e "$perlvar{'lonTabDir'}/managers.tab") { + if (open(my $config,"<","$perlvar{'lonTabDir'}/managers.tab")) { + while (my $configline=<$config>) { + chomp($configline); + next if ($configline =~ /^\#/); + if (($configline =~ /^[\w\-]+$/) || ($configline =~ /^[\w\-]+\:[\w\-]+$/)) { + $managerstab{$configline} = 1; + } + } + close($config); + } } } # ------------- set up temporary directory { - $tmpdir = $perlvar{'lonDaemons'}.'/tmp/'; + $tmpdir = LONCAPA::tempdir(); + +} +# ------------- set default texengine (domain default overrides this) +{ + $deftex = LONCAPA::texengine(); +} + +# ------------- set default minimum length for passwords for internal auth users +{ + $passwdmin = LONCAPA::passwd_min(); } -%metacache=(); +$memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'], + 'compress_threshold'=> 20_000, + }); $processmarker='_'.time.'_'.$perlvar{'lonHostID'}; $dumpcount=0; +$locknum=0; &logtouch(); -&logthis('INFO: Read configuration'); +&logthis('INFO: Read configuration'); $readit=1; + { + use integer; + my $test=(2**32)+1; + if ($test != 0) { $_64bit=1; } else { $_64bit=0; } + &logthis(" Detected 64bit platform ($_64bit)"); + } } } @@ -4725,8 +15543,8 @@ were new keys. I.E. 1:foo will become 1: Calling convention: - my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname,$home); - &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$home); + my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname); + &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$laststore); For more detailed information, see lonnet specific documentation. @@ -4742,7 +15560,7 @@ when the connection is brought back up =item * B: unable to contact remote host and unable to save message for later delivery -=item * B: an error a occured, a description of the error follows the : +=item * B: an error a occurred, a description of the error follows the : =item * B: unable to fund a host associated with the user/domain that was requested @@ -4757,16 +15575,27 @@ that was requested =item * X -B: the value of %hash is written to +B: the value of %{$hashref} is written to the user envirnoment file, and will be restored for each access this -user makes during this session, also modifies the %ENV for the current -process +user makes during this session, also modifies the %env for the current +process. Optional rolesarrayref - if defined contains a reference to an array +of roles which are exempt from the restriction on modifying user.role entries +in the user's environment.db and in %env. =item * X -B: removes all items from the session -environment file that matches the regular expression in $regexp. The -values are also delted from the current processes %ENV. +B: removes all items from the session +environment file that begin with $delthis. If the +optional second arg - $regexp - is true, $delthis is treated as a +regular expression, otherwise \Q$delthis\E is used. +The values are also deleted from the current processes %env. + +=item * get_env_multiple($name) + +gets $name from the %env hash, it seemlessly handles the cases where multiple +values may be defined and end up as an array ref. + +returns an array of values =back @@ -4781,9 +15610,14 @@ authentication scheme =item * X -B: try to +B: try to authenticate user from domain's lib servers (first use the current one). C<$upass> should be the users password. +$checkdefauth is optional (value is 1 if a check should be made to + authenticate user using default authentication method, and allow + account creation if username does not have account in the domain). +$clientcancheckhost is optional (value is 1 if checking whether the + server can host will occur on the client side in lonauth.pm). =item * X @@ -4793,10 +15627,12 @@ the answer, and also caches if there is =item * X -B: find the usernames behind a list of IDs -(IDs are a unique resource in a domain, there must be only 1 ID per -username, and only 1 username per ID in a specific domain) (returns -hash: id=>name,id=>name) +B: find the usernames behind either +a list of student/employee IDs or clicker IDs +(student/employee IDs are a unique resource in a domain, there must be +only 1 ID per username, and only 1 username per ID in a specific domain). +clickerIDs are not necessarily unique, as students might share clickers. +(returns hash: id=>name,id=>name) =item * X @@ -4805,15 +15641,41 @@ usernames (returns hash: name=>id,name=> =item * X -B: store away a list of names and associated IDs +B: store away a list of +names and associated student/employee IDs or clicker IDs. + +=item * +X +B: delete unwanted +student/employee ID or clicker ID username look-ups from domain. +The homeserver ($uhome) and namespace ($namespace) are optional. +If no $uhome is provided, it will be determined usig &homeserver() +for each user. If no $namespace is provided, the default is ids. + +=item * +X +B: update +clicker ID-to-username look-ups in clickers.db on library server. +Permitted actions are add or del (i.e., add or delete). The +clickers.db contains clickerID as keys (escaped), and each corresponding +value is an escaped comma-separated list of usernames (for whom the +library server is the homeserver), who registered that particular ID. +If $critical is true, the update will be sent via &critical, otherwise +&reply() will be used. =item * X -B: get user privileges +B: get user privileges. +returns user role, first access and timer interval hashes + +=item * +X +B: returns a true if user has a +privileged and active role (i.e. su or dc), false otherwise. =item * -X -B: finds the section of student in the +X +B: finds the section of student in the course $cname, return section name/number or '' for "not in course" and '-1' for "no section" @@ -4822,6 +15684,16 @@ X B: gets the values of the keys passed in @what from the requested user's environment, returns a hash +=item * +X +B: retrieves data from a user's +activity.log file. %filters defines filters applied when parsing the +log file. These can be start or end timestamps, or the type of action +- log to look for Login or Logout events, check for Checkin or +Checkout, role for role selection. The response is in the form +timestamp1:hostid1:event1×tamp2:hostid2:event2 where events are +escaped strings of the action recorded in the activity.log file. + =back =head2 User Roles @@ -4830,24 +15702,113 @@ passed in @what from the requested user' =item * -allowed($priv,$uri) : check for a user privilege; returns codes for allowed -actions +allowed($priv,$uri,$symb,$role,$clientip,$noblockcheck) : check for a user privilege; +returns codes for allowed actions. + +The first argument is required, all others are optional. + +$priv is the privilege being checked. +$uri contains additional information about what is being checked for access (e.g., +URL, course ID etc.). +$symb is the unique resource instance identifier in a course; if needed, +but not provided, it will be retrieved via a call to &symbread(). +$role is the role for which a priv is being checked (only used if priv is evb). +$clientip is the user's IP address (only used when checking for access to portfolio +files). +$noblockcheck, if true, skips calls to &has_comm_blocking() for the bre priv. This +prevents recursive calls to &allowed. + F: full access U,I,K: authentication modes (cxx only) '': forbidden 1: user needs to choose course 2: browse allowed + A: passphrase authentication needed + B: access temporarily blocked because of a blocking event in a course. + D: access blocked because access is required via session initiated via deep-link + +=item * + +constructaccess($url,$setpriv) : check for access to construction space URL + +See if the owner domain and name in the URL match those in the +expected environment. If so, return three element list +($ownername,$ownerdomain,$ownerhome). + +Otherwise return the null string. + +If second argument 'setpriv' is true, it assigns the privileges, +and returns the same three element list, unless the owner has +blocked "ad hoc" Domain Coordinator access to the Author Space, +in which case the null string is returned. + +=item * + +definerole($rolename,$sysrole,$domrole,$courole,$uname,$udom) : define role; +define a custom role rolename set privileges in format of lonTabs/roles.tab +for system, domain, and course level. $uname and $udom are optional (current +user's username and domain will be used when either of $uname or $udom are absent. + +=item * + +plaintext($short,$type,$cid,$forcedefault) : return value in %prp hash +(rolesplain.tab); plain text explanation of a user role term. +$type is Course (default) or Community. +If $forcedefault evaluates to true, text returned will be default +text for $type. Otherwise, if this is a course, the text returned +will be a custom name for the role (if defined in the course's +environment). If no custom name is defined the default is returned. + +=item * + +get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv) : +All arguments are optional. Returns a hash of a roles, either for +co-author/assistant author roles for a user's Construction Space +(default), or if $context is 'userroles', roles for the user himself, +In the hash, keys are set to colon-separated $uname,$udom,$role, and +(optionally) if $withsec is true, a fourth colon-separated item - $section. +For each key, value is set to colon-separated start and end times for +the role. If no username and domain are specified, will default to +current user/domain. Types, roles, and roledoms are references to arrays +of role statuses (active, future or previous), roles +(e.g., cc,in, st etc.) and domains of the roles which can be used +to restrict the list of roles reported. If no array ref is +provided for types, will default to return only active roles. =item * -definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom -role rolename set privileges in format of lonTabs/roles.tab for system, domain, -and course level +in_course($udom,$uname,$cdom,$cnum,$type,$hideprivileged) : determine if +user: $uname:$udom has a role in the course: $cdom_$cnum. + +Additional optional arguments are: $type (if role checking is to be restricted +to certain user status types -- previous (expired roles), active (currently +available roles) or future (roles available in the future), and +$hideprivileged -- if true will not report course roles for users who +have active Domain Coordinator role in course's domain or in additional +domains (specified in 'Domains to check for privileged users' in course +environment -- set via: Course Settings -> Classlists and staff listing). =item * -plaintext($short) : return value in %prp hash (rolesplain.tab); plain text -explanation of a user role term +privileged($username,$domain,$possdomains,$possroles) : returns 1 if user +$username:$domain is a privileged user (e.g., Domain Coordinator or Super User) +$possdomains and $possroles are optional array refs -- to domains to check and +roles to check. If $possdomains is not specified, a dump will be done of the +users' roles.db to check for a dc or su role in any domain. This can be +time consuming if &privileged is called repeatedly (e.g., when displaying a +classlist), so in such cases, supplying a $possdomains array is preferred, as +this then allows &privileged_by_domain() to be used, which caches the identity +of privileged users, eliminating the need for repeated calls to &dump(). + +=item * + +privileged_by_domain($possdomains,$roles) : returns a hash of a hash of a hash, +where the outer hash keys are domains specified in the $possdomains array ref, +next inner hash keys are privileged roles specified in the $roles array ref, +and the innermost hash contains key = value pairs for username:domain = end:start +for active or future "privileged" users with that role in that domain. To avoid +repeated dumps of domain roles -- via &get_domain_roles() -- contents of the +innerhash are cached using priv_$role and $dom as the identifiers. =back @@ -4857,7 +15818,7 @@ explanation of a user role term =item * -assignrole($udom,$uname,$url,$role,$end,$start) : assign role; give a role to a +assignrole($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,$context) : assign role; give a role to a user for the level given by URL. Optional start and end dates (leave empty string or zero for "no date") @@ -4874,16 +15835,24 @@ modifyuserauth($udom,$uname,$umode,$upas =item * -modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene) : -modify user +modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last, $gene, + $forceid,$desiredhome,$email,$inststatus,$candelete) : + +will update user information (firstname,middlename,lastname,generation, +permanentemail), and if forceid is true, student/employee ID also. +A user's institutional affiliation(s) can also be updated. +User information fields will not be overwritten with empty entries +unless the field is included in the $candelete array reference. +This array is included when a single user is modified via "Manage Users", +or when Autoupdate.pl is run by cron in a domain. =item * modifystudent -modify a students enrollment and identification information. -The course id is resolved based on the current users environment. -This means the envoking user must be a course coordinator or otherwise +modify a student's enrollment and identification information. +The course id is resolved based on the current user's environment. +This means the invoking user must be a course coordinator or otherwise associated with a course. This call is essentially a wrapper for lonnet::modifyuser and @@ -4893,25 +15862,25 @@ Inputs: =over 4 -=item B<$udom> Students loncapa domain +=item B<$udom> Student's loncapa domain -=item B<$uname> Students loncapa login name +=item B<$uname> Student's loncapa login name -=item B<$uid> Students id/student number +=item B<$uid> Student/Employee ID -=item B<$umode> Students authentication mode +=item B<$umode> Student's authentication mode -=item B<$upass> Students password +=item B<$upass> Student's password -=item B<$first> Students first name +=item B<$first> Student's first name -=item B<$middle> Students middle name +=item B<$middle> Student's middle name -=item B<$last> Students last name +=item B<$last> Student's last name -=item B<$gene> Students generation +=item B<$gene> Student's generation -=item B<$usec> Students section in course +=item B<$usec> Student's section in course =item B<$end> Unix time of the roles expiration @@ -4921,26 +15890,42 @@ Inputs: =item B<$desiredhome> server to use as home server for student +=item B<$email> Student's permanent e-mail address + +=item B<$type> Type of enrollment (auto or manual) + +=item B<$locktype> boolean - enrollment type locked to prevent Autoenroll.pl changing manual to auto + +=item B<$cid> courseID - needed if a course role is assigned by a user whose current role is DC + +=item B<$selfenroll> boolean - 1 if user role change occurred via self-enrollment + +=item B<$context> role change context (shown in User Management Logs display in a course) + +=item B<$inststatus> institutional status of user - : separated string of escaped status types + +=item B<$credits> Number of credits student will earn from this class - only needs to be supplied if value needs to be different from default credits for class. + =back =item * modify_student_enrollment -Change a students enrollment status in a class. The environment variable +Change a student's enrollment status in a class. The environment variable 'role.request.course' must be defined for this function to proceed. Inputs: =over 4 -=item $udom, students domain +=item $udom, student's domain -=item $uname, students name +=item $uname, student's name -=item $uid, students user id +=item $uid, student's user id -=item $first, students first name +=item $first, student's first name =item $middle @@ -4954,6 +15939,20 @@ Inputs: =item $start +=item $type + +=item $locktype + +=item $cid + +=item $selfenroll + +=item $context + +=item $credits, number of credits student will earn from this class + +=item $instsec, institutional course section code for student + =back @@ -4979,13 +15978,49 @@ revokecustomrole($udom,$uname,$url,$role =item * -coursedescription($courseid) : course description +coursedescription($courseid,$options) : returns a hash of information about the +specified course id, including all environment settings for the +course, the description of the course will be in the hash under the +key 'description' + +$options is an optional parameter that if supplied is a hash reference that controls +what how this function works. It has the following key/values: + +=over 4 + +=item freshen_cache + +If defined, and the environment cache for the course is valid, it is +returned in the returned hash. + +=item one_time + +If defined, the last cache time is set to _now_ + +=item user + +If defined, the supplied username is used instead of the current user. + + +=back + +=item * + +resdata($name,$domain,$type,@which) : request for current parameter +setting for a specific $type, where $type is either 'course' or 'user', +@what should be a list of parameters to ask about. This routine caches +answers for 10 minutes. =item * -courseresdata($coursenum,$coursedomain,@which) : request for current -parameter setting for a specific course, @what should be a list of -parameters to ask about. This routine caches answers for 5 minutes. +get_courseresdata($courseid, $domain) : dump the entire course resource +data base, returning a hash that is keyed by the resource name and has +values that are the resource value. I believe that the timestamps and +versions are also returned. + +get_numsuppfiles($cnum,$cdom) : retrieve number of files in a course's +supplemental content area. This routine caches the number of files for +10 minutes. =back @@ -5000,7 +16035,106 @@ database) for a course =item * -createcourse($udom,$description,$url) : make/modify course +createcourse($udom,$description,$url,$course_server,$nonstandard,$inst_code,$course_owner,$crstype,$cnum) : make course + +=item * + +generate_coursenum($udom,$crstype) : get a unique (unused) course number in domain $udom for course type $crstype (Course or Community). + +=item * + +is_course($courseid), is_course($cdom, $cnum) + +Accepts either a combined $courseid (in the form of domain_courseid) or the +two component version $cdom, $cnum. It checks if the specified course exists. + +Returns: + undef if the course doesn't exist, otherwise + in scalar context the combined courseid. + in list context the two components of the course identifier, domain and + courseid. + +=back + +=head2 Bubblesheet Configuration + +=over 4 + +=item * + +get_scantron_config($which) + +$which - the name of the configuration to parse from the file. + +Parses and returns the bubblesheet configuration line selected as a +hash of configuration file fields. + + +Returns: + If the named configuration is not in the file, an empty + hash is returned. + + a hash with the fields + name - internal name for the this configuration setup + description - text to display to operator that describes this config + CODElocation - if 0 or the string 'none' + - no CODE exists for this config + if -1 || the string 'letter' + - a CODE exists for this config and is + a string of letters + Unsupported value (but planned for future support) + if a positive integer + - The CODE exists as the first n items from + the question section of the form + if the string 'number' + - The CODE exists for this config and is + a string of numbers + CODEstart - (only matter if a CODE exists) column in the line where + the CODE starts + CODElength - length of the CODE + IDstart - column where the student/employee ID starts + IDlength - length of the student/employee ID info + Qstart - column where the information from the bubbled + 'questions' start + Qlength - number of columns comprising a single bubble line from + the sheet. (usually either 1 or 10) + Qon - either a single character representing the character used + to signal a bubble was chosen in the positional setup, or + the string 'letter' if the letter of the chosen bubble is + in the final, or 'number' if a number representing the + chosen bubble is in the file (1->A 0->J) + Qoff - the character used to represent that a bubble was + left blank + PaperID - if the scanning process generates a unique number for each + sheet scanned the column that this ID number starts in + PaperIDlength - number of columns that comprise the unique ID number + for the sheet of paper + FirstName - column that the first name starts in + FirstNameLength - number of columns that the first name spans + LastName - column that the last name starts in + LastNameLength - number of columns that the last name spans + BubblesPerRow - number of bubbles available in each row used to + bubble an answer. (If not specified, 10 assumed). + + +=item * + +get_scantronformat_file($cdom) + +$cdom - the course's domain (optional); if not supplied, uses +domain for current $env{'request.course.id'}. + +Returns an array containing lines from the scantron format file for +the domain of the course. + +If a url for a custom.tab file is listed in domain's configuration.db, +lines are from this file. + +Otherwise, if a default.tab has been published in RES space by the +domainconfig user, lines are from this file. + +Otherwise, fall back to getting lines from the legacy file on the +local server: /home/httpd/lonTabs/default_scantronformat.tab =back @@ -5016,8 +16150,8 @@ subscribe($fname) : subscribe to a resou repcopy($filename) : subscribes to the requested file, and attempts to replicate from the owning library server, Might return -HTTP_SERVICE_UNAVAILABLE, HTTP_NOT_FOUND, FORBIDDEN, OK, or -HTTP_BAD_REQUEST, also attempts to grab the metadata for the +'unavailable', 'not_found', 'forbidden', 'ok', or +'bad_request', also attempts to grab the metadata for the resource. Expects the local filesystem pathname (/home/httpd/html/res/....) @@ -5029,10 +16163,15 @@ resource. Expects the local filesystem p =item * -EXT($varname,$symb,$udom,$uname) : evaluates and returns the value of -a vairety of different possible values, $varname should be a request -string, and the other parameters can be used to specify who and what -one is asking about. +EXT($varname,$symb,$udom,$uname,$usection,$recurse,$cid) : evaluates +and returns the value of a variety of different possible values, +$varname should be a request string, and the other parameters can be +used to specify who and what one is asking about. Ordinarily, $cid +does not need to be specified, as it is retrived from +$env{'request.course.id'}, but &Apache::lonnet::EXT() is called +within lonuserstate::loadmap() when initializing a course, before +$env{'request.course.id'} has been set, so it needs to be provided +in that one case. Possible values for $varname are environment.lastname (or other item from the envirnment hash), user.name (or someother aspect about the @@ -5050,12 +16189,18 @@ condval($condidx) : value of condition i =item * -metadata($uri,$what,$liburi,$prefix,$depthcount) : request a +metadata($uri,$what,$toolsymb,$liburi,$prefix,$depthcount) : request a resource's metadata, $what should be either a specific key, or either 'keys' (to get a list of possible keys) or 'packages' to get a list of -packages that this resource currently uses, the last 3 arguments are only used internally for recursive metadata. +packages that this resource currently uses, the last 3 arguments are +only used internally for recursive metadata. + +the toolsymb is only used where the uri is for an external tool (for which +the uri as well as the symb are guaranteed to be unique). -this function automatically caches all requests +this function automatically caches all requests except any made recursively +to retrieve a list of metadata keys for an imported library file ($liburi is +defined). =item * @@ -5065,16 +16210,32 @@ will be stored for query =item * -symbread($filename) : return symbolic list entry (filename argument optional); +symbread($filename,$donotrecurse,$ignorecachednull,$checkforblock,$possibles) : +return symbolic list entry (all arguments optional). + +Args: filename is the filename (including path) for the file for which a symb +is required; donotrecurse, if true will prevent calls to allowed() being made +to check access status if more than one resource was found in the bighash +(see rev. 1.249) to avoid an infinite loop if an ambiguous resource is part of +a randompick); ignorecachednull, if true will prevent a symb of '' being +returned if $env{$cache_str} is defined as ''; checkforblock if true will +cause possible symbs to be checked to determine if they are subject to content +blocking, if so they will not be included as possible symbs; possibles is a +ref to a hash, which, as a side effect, will be populated with all possible +symbs (content blocking not tested). + returns the data handle =item * -symbverify($symb,$thisfn) : verifies that $symb actually exists and is -a possible symb for the URL in $thisfn, returns a 1 on success, 0 on -failure, user must be in a course, as it assumes the existance of the -course initi hash, and uses $ENV('request.course.id'} - +symbverify($symb,$thisfn,$encstate) : verifies that $symb actually exists +and is a possible symb for the URL in $thisfn, and if is an encrypted +resource that the user accessed using /enc/ returns a 1 on success, 0 +on failure, user must be in a course, as it assumes the existence of +the course initial hash, and uses $env('request.course.id'}. The third +arg is an optional reference to a scalar. If this arg is passed in the +call to symbverify, it will be set to 1 if the symb has been set to be +encrypted; otherwise it will be null. =item * @@ -5104,7 +16265,7 @@ unfakeable, receipt =item * -receipt() : API to ireceipt working off of ENV values; given out to users +receipt() : API to ireceipt working off of env values; given out to users =item * @@ -5127,6 +16288,34 @@ expirespread($uname,$udom,$stype,$usymb) devalidate($symb) : devalidate temporary spreadsheet calculations, forcing spreadsheet to reevaluate the resource scores next time. +=item * + +can_edit_resource($file,$cnum,$cdom,$resurl,$symb,$group) : determine if current user can edit a particular resource, +when viewing in course context. + + input: six args -- filename (decluttered), course number, course domain, + url, symb (if registered) and group (if this is a + group item -- e.g., bulletin board, group page etc.). + + output: array of five scalars -- + $cfile -- url for file editing if editable on current server + $home -- homeserver of resource (i.e., for author if published, + or course if uploaded.). + $switchserver -- 1 if server switch will be needed. + $forceedit -- 1 if icon/link should be to go to edit mode + $forceview -- 1 if icon/link should be to go to view mode + +=item * + +is_course_upload($file,$cnum,$cdom) + +Used in course context to determine if current file was uploaded to +the course (i.e., would be found in /userfiles/docs on the course's +homeserver. + + input: 3 args -- filename (decluttered), course number and course domain. + output: boolean -- 1 if file was uploaded. + =back =head2 Storing/Retreiving Data @@ -5135,15 +16324,21 @@ forcing spreadsheet to reevaluate the re =item * -store($storehash,$symb,$namespace,$udom,$uname) : stores hash permanently -for this url; hashref needs to be given and should be a \%hashname; the -remaining args aren't required and if they aren't passed or are '' they will -be derived from the ENV +store($storehash,$symb,$namespace,$udom,$uname,$laststore) : stores hash +permanently for this url; hashref needs to be given and should be a \%hashname; +the remaining args aren't required and if they aren't passed or are '' they will +be derived from the env (with the exception of $laststore, which is an +optional arg used when a user's submission is stored in grading). +$laststore is $version=$timestamp, where $version is the most recent version +number retrieved for the corresponding $symb in the $namespace db file, and +$timestamp is the timestamp for that transaction (UNIX time). +$laststore is currently only passed when cstore() is called by +structuretags::finalize_storage(). =item * -cstore($storehash,$symb,$namespace,$udom,$uname) : same as store but -uses critical subroutine +cstore($storehash,$symb,$namespace,$udom,$uname,$laststore) : same as store +but uses critical subroutine =item * @@ -5152,6 +16347,28 @@ all args are optional =item * +dumpstore($namespace,$udom,$uname,$regexp,$range) : +dumps the complete (or key matching regexp) namespace into a hash +($udom, $uname, $regexp, $range are optional) for a namespace that is +normally &store()ed into + +$range should be either an integer '100' (give me the first 100 + matching records) + or be two integers sperated by a - with no spaces + '30-50' (give me the 30th through the 50th matching + records) + + +=item * + +putstore($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog) : +replaces a &store() version of data with a replacement set of data +for a particular resource in a namespace passed in the $storehash hash +reference. If $tolog is true, the transaction is logged in the courselog +with an action=PUTSTORE. + +=item * + tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that works very similar to store/cstore, but all data is stored in a temporary location and can be reset using tmpreset, $storehash should @@ -5181,9 +16398,22 @@ namesp ($udom and $uname are optional) =item * -dump($namespace,$udom,$uname,$regexp) : +dump($namespace,$udom,$uname,$regexp,$range) : dumps the complete (or key matching regexp) namespace into a hash -($udom, $uname and $regexp are optional) +($udom, $uname, $regexp, $range are optional) + +$range should be either an integer '100' (give me the first 100 + matching records) + or be two integers sperated by a - with no spaces + '30-50' (give me the 30th through the 50th matching + records) +=item * + +inc($namespace,$store,$udom,$uname) : increments $store in $namespace. +$store can be a scalar, an array reference, or if the amount to be +incremented is > 1, a hash reference. + +($udom and $uname are optional) =item * @@ -5197,6 +16427,31 @@ cput($namespace,$storehash,$udom,$uname) =item * +newput($namespace,$storehash,$udom,$uname) : + +Attempts to store the items in the $storehash, but only if they don't +currently exist, if this succeeds you can be certain that you have +successfully created a new key value pair in the $namespace db. + + +Args: + $namespace: name of database to store values to + $storehash: hashref to store to the db + $udom: (optional) domain of user containing the db + $uname: (optional) name of user caontaining the db + +Returns: + 'ok' -> succeeded in storing all keys of $storehash + 'key_exists: ' -> failed to anything out of $storehash, as at + least already existed in the db (other + requested keys may also already exist) + 'error: ' -> unable to tie the DB or other error occurred + 'con_lost' -> unable to contact request server + 'refused' -> action was not allowed by remote machine + + +=item * + eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array reference filled in from namesp (encrypts the return communication) ($udom and $uname are optional) @@ -5206,6 +16461,106 @@ reference filled in from namesp (encrypt log($udom,$name,$home,$message) : write to permanent log for user; use critical subroutine +=item * + +get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from +array reference filled in from namespace found in domain level on either +specified domain server ($uhome) or primary domain server ($udom and $uhome are optional). + +=item * + +put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at +domain level either on specified domain server ($uhome) or primary domain +server ($udom and $uhome are optional) + +=item * + +get_domain_defaults($target_domain,$ignore_cache) : returns hash with defaults +for: authentication, language, quotas, timezone, date locale, and portal URL in +the target domain. + +May also include additional key => value pairs for the following groups: + +=over + +=item +disk quotas (MB allocated by default to portfolios and authoring spaces). + +=over + +=item defaultquota, authorquota + +=back + +=item +tools (availability of aboutme page, blog, webDAV access for authoring spaces, +portfolio for users). + +=over + +=item +aboutme, blog, webdav, portfolio + +=back + +=item +requestcourses: ability to request courses, and how requests are processed. + +=over + +=item +official, unofficial, community, textbook, placement + +=back + +=item +inststatus: types of institutional affiliation, and order in which they are displayed. + +=over + +=item +inststatustypes, inststatusorder, inststatusguest + +=back + +=item +coursedefaults: can PDF forms can be created, default credits for courses, default quotas (MB) +for course's uploaded content. + +=over + +=item +canuse_pdfforms, officialcredits, unofficialcredits, textbookcredits, officialquota, unofficialquota, +communityquota, textbookquota, placementquota + +=back + +=item +usersessions: set options for hosting of your users in other domains, and hosting of users from other domains +on your servers. + +=over + +=item +remotesessions, hostedsessions + +=back + +=back + +In cases where a domain coordinator has never used the "Set Domain Configuration" +utility to create a configuration.db file on a domain's primary library server +only the following domain defaults: auth_def, auth_arg_def, lang_def +-- corresponding values are authentication type (internal, krb4, krb5, +or localauth), initial password or a kerberos realm, language (e.g., en-us) -- +will be available. Values are retrieved from cache (if current), unless the +optional $ignore_cache arg is true, or from domain's configuration.db (if available), +or lastly from values in lonTabs/dns_domain,tab, or lonTabs/domain.tab. + +Typical usage: + +%domdefaults = &get_domain_defaults($target_domain); + =back =head2 Network Status Functions @@ -5214,14 +16569,96 @@ critical subroutine =item * -dirlist($uri) : return directory list based on URI +dirlist() : return directory list based on URI (first arg). + +Inputs: 1 required, 5 optional. + +=over + +=item +$uri - path to file in filesystem (starts: /res or /userfiles/). Required. + +=item +$userdomain - domain of user/course to be listed. Extracted from $uri if absent. + +=item +$username - username of user/course to be listed. Extracted from $uri if absent. + +=item +$getpropath - boolean: 1 if prepend path using &propath(). + +=item +$getuserdir - boolean: 1 if prepend path for "userfiles". + +=item +$alternateRoot - path to prepend in place of path from $uri. + +=back + +Returns: Array of up to two items. + +=over + +a reference to an array of files/subdirectories + +=over + +Each element in the array of files/subdirectories is a & separated list of +item name and the result of running stat on the item. If dirlist was requested +for a file instead of a directory, the item name will be ''. For a directory +listing, if the item is a metadata file, the element will end &N&M +(where N amd M are either 0 or 1, corresponding to obsolete set (1), or +default copyright set (1). + +=back + +a scalar containing error condition (if encountered). + +=over + +=item +no_host (no homeserver identified for $username:$domain). + +=item +no_such_host (server contacted for listing not identified as valid host). + +=item +con_lost (connection to remote server failed). + +=item +refused (invalid $username:$domain received on lond side). + +=item +no_such_dir (directory at specified path on lond side does not exist). + +=item +empty (directory at specified path on lond side is empty). + +=over + +This is currently not encountered because the &ls3, &ls2, +&ls (_handler) routines on the lond side do not filter out +. and .. from a directory listing. + +=back + +=back + +=back =item * spareserver() : find server with least workload from spare.tab + +=item * + +host_from_dns($dns) : Returns the loncapa hostname corresponding to a DNS name or undef +if there is no corresponding loncapa host. + =back + =head2 Apache Request =over 4 @@ -5269,11 +16706,12 @@ splitting on '&', supports elements that =head2 Logging Routines -=over 4 These routines allow one to make log messages in the lonnet.log and lonnet.perm logfiles. +=over 4 + =item * logtouch() : make sure the logfile, lonnet.log, exists @@ -5289,6 +16727,7 @@ logperm() : append a permanent message t file never gets deleted by any automated portion of the system, only messages of critical importance should go in here. + =back =head2 General File Helper Routines @@ -5297,8 +16736,39 @@ messages of critical importance should g =item * -getfile($file) : returns the entire contents of a file or -1; it -properly subscribes to and replicates the file if neccessary. +getfile($file,$caller) : two cases - requests for files in /res or in /uploaded. +(a) files in /uploaded + (i) If a local copy of the file exists - + compares modification date of local copy with last-modified date for + definitive version stored on home server for course. If local copy is + stale, requests a new version from the home server and stores it. + If the original has been removed from the home server, then local copy + is unlinked. + (ii) If local copy does not exist - + requests the file from the home server and stores it. + + If $caller is 'uploadrep': + This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase) + for request for files originally uploaded via DOCS. + - returns 'ok' if fresh local copy now available, -1 otherwise. + + Otherwise: + This indicates a call from the content generation phase of the request. + - returns the entire contents of the file or -1. + +(b) files in /res + - returns the entire contents of a file or -1; + it properly subscribes to and replicates the file if neccessary. + + +=item * + +stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file + reference + +returns either a stat() list of data about the file or an empty list +if the file doesn't exist or couldn't find out about it (connection +problems or user unknown) =item * @@ -5314,7 +16784,242 @@ filelocation except for hrefs =item * -declutter() : declutters URLs (remove docroot, beginning slashes, 'res' etc) +declutter() : declutters URLs -- remove beginning slashes, 'res' etc. +also removes beginning /home/httpd/html unless /priv/ follows it. + +=back + +=head2 Usererfile file routines (/uploaded*) + +=over 4 + +=item * + +userfileupload(): main rotine for putting a file in a user or course's + filespace, arguments are, + + formname - required - this is the name of the element in $env where the + filename, and the contents of the file to create/modifed exist + the filename is in $env{'form.'.$formname.'.filename'} and the + contents of the file is located in $env{'form.'.$formname} + context - if coursedoc, store the file in the course of the active role + of the current user; + if 'existingfile': store in 'overwrites' in /home/httpd/perl/tmp + if 'canceloverwrite': delete file in tmp/overwrites directory + subdir - required - subdirectory to put the file in under ../userfiles/ + if undefined, it will be placed in "unknown" + + (This routine calls clean_filename() to remove any dangerous + characters from the filename, and then calls finuserfileupload() to + complete the transaction) + + returns either the url of the uploaded file (/uploaded/....) if successful + and /adm/notfound.html if unsuccessful + +=item * + +clean_filename(): routine for cleaing a filename up for storage in + userfile space, argument is: + + filename - proposed filename + +returns: the new clean filename + +=item * + +finishuserfileupload(): routine that creates and sends the file to +userspace, probably shouldn't be called directly + + docuname: username or courseid of destination for the file + docudom: domain of user/course of destination for the file + formname: same as for userfileupload() + fname: filename (including subdirectories) for the file + parser: if 'parse', will parse (html) file to extract references to objects, links etc. + if hashref, and context is scantron, will convert csv format to standard format + allfiles: reference to hash used to store objects found by parser + codebase: reference to hash used for codebases of java objects found by parser + thumbwidth: width (pixels) of thumbnail to be created for uploaded image + thumbheight: height (pixels) of thumbnail to be created for uploaded image + resizewidth: width to be used to resize image using resizeImage from ImageMagick + resizeheight: height to be used to resize image using resizeImage from ImageMagick + context: if 'overwrite', will move the uploaded file from its temporary location to + userfiles to facilitate overwriting a previously uploaded file with same name. + mimetype: reference to scalar to accommodate mime type determined + from File::MMagic if $parser = parse. + + returns either the url of the uploaded file (/uploaded/....) if successful + and /adm/notfound.html if unsuccessful (or an error message if context + was 'overwrite'). + + +=item * + +renameuserfile(): renames an existing userfile to a new name + + Args: + docuname: username or courseid of destination for the file + docudom: domain of user/course of destination for the file + old: current file name (including any subdirs under userfiles) + new: desired file name (including any subdirs under userfiles) + +=item * + +mkdiruserfile(): creates a directory is a userfiles dir + + Args: + docuname: username or courseid of destination for the file + docudom: domain of user/course of destination for the file + dir: dir to create (including any subdirs under userfiles) + +=item * + +removeuserfile(): removes a file that exists in userfiles + + Args: + docuname: username or courseid of destination for the file + docudom: domain of user/course of destination for the file + fname: filname to delete (including any subdirs under userfiles) + +=item * + +removeuploadedurl(): convience function for removeuserfile() + + Args: + url: a full /uploaded/... url to delete + +=item * + +get_portfile_permissions(): + Args: + domain: domain of user or course contain the portfolio files + user: name of user or num of course contain the portfolio files + Returns: + hashref of a dump of the proper file_permissions.db + + +=item * + +get_access_controls(): + +Args: + current_permissions: the hash ref returned from get_portfile_permissions() + group: (optional) the group you want the files associated with + file: (optional) the file you want access info on + +Returns: + a hash (keys are file names) of hashes containing + keys are: path to file/file_name\0uniqueID:scope_end_start (see below) + values are XML containing access control settings (see below) + +Internal notes: + + access controls are stored in file_permissions.db as key=value pairs. + key -> path to file/file_name\0uniqueID:scope_end_start + where scope -> public,guest,course,group,domains or users. + end -> UNIX time for end of access (0 -> no end date) + start -> UNIX time for start of access + + value -> XML description of access control + (type =1 of: public,guest,course,group,domains,users"> + + + + for scope type = guest + + for scope type = course or group + + + + +

+ + + + for scope type = domains + + for scope type = users + + + + + + + + Access data is also aggregated for each file in an additional key=value pair: + key -> path to file/file_name\0accesscontrol + value -> reference to hash + hash contains key = value pairs + where key = uniqueID:scope_end_start + value = UNIX time record was last updated + + Used to improve speed of look-ups of access controls for each file. + + Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays. + +=item * + +modify_access_controls(): + +Modifies access controls for a portfolio file +Args +1. file name +2. reference to hash of required changes, +3. domain +4. username + where domain,username are the domain of the portfolio owner + (either a user or a course) + +Returns: +1. result of additions or updates ('ok' or 'error', with error message). +2. result of deletions ('ok' or 'error', with error message). +3. reference to hash of any new or updated access controls. +4. reference to hash used to map incoming IDs to uniqueIDs assigned to control. + key = integer (inbound ID) + value = uniqueID + +=item * + +get_timebased_id(): + +Attempts to get a unique timestamp-based suffix for use with items added to a +course via the Course Editor (e.g., folders, composite pages, +group bulletin boards). + +Args: (first three required; six others optional) + +1. prefix (alphanumeric): of keys in hash, e.g., suppsequence, docspage, + docssequence, or name of group + +2. keyid (alphanumeric): name of temporary locking key in hash, + e.g., num, boardids + +3. namespace: name of gdbm file used to store suffixes already assigned; + file will be named nohist_namespace.db + +4. cdom: domain of course; default is current course domain from %env + +5. cnum: course number; default is current course number from %env + +6. idtype: set to concat if an additional digit is to be appended to the + unix timestamp to form the suffix, if the plain timestamp is already + in use. Default is to not do this, but simply increment the unix + timestamp by 1 until a unique key is obtained. + +7. who: holder of locking key; defaults to user:domain for user. + +8. locktries: number of attempts to obtain a lock (sleep of 1s before + retrying); default is 3. + +9. maxtries: number of attempts to obtain a unique suffix; default is 20. + +Returns: + +1. suffix obtained (numeric) + +2. result of deleting locking key (ok if deleted, or lock never obtained) + +3. error: contains (localized) error message if an error occurred. + =back @@ -5394,3 +17099,4 @@ symblist($mapname,%newhash) : update sym =back =cut +