--- loncom/lond 2004/09/14 09:30:07 1.253 +++ loncom/lond 2006/05/18 02:32:06 1.328 @@ -2,7 +2,7 @@ # The LearningOnline Network # lond "LON Daemon" Server (port "LOND" 5663) # -# $Id: lond,v 1.253 2004/09/14 09:30:07 foxr Exp $ +# $Id: lond,v 1.328 2006/05/18 02:32:06 albertel Exp $ # # Copyright Michigan State University Board of Trustees # @@ -31,12 +31,12 @@ use strict; use lib '/home/httpd/lib/perl/'; +use LONCAPA; use LONCAPA::Configuration; use IO::Socket; use IO::File; #use Apache::File; -use Symbol; use POSIX; use Crypt::IDEA; use LWP::UserAgent(); @@ -46,7 +46,9 @@ use Authen::Krb5; use lib '/home/httpd/lib/perl/'; use localauth; use localenroll; +use localstudentphoto; use File::Copy; +use File::Find; use LONCAPA::ConfigFileEdit; use LONCAPA::lonlocal; use LONCAPA::lonssl; @@ -56,15 +58,15 @@ my $DEBUG = 0; # Non zero to ena my $status=''; my $lastlog=''; +my $lond_max_wait_time = 13; -my $VERSION='$Revision: 1.253 $'; #' stupid emacs +my $VERSION='$Revision: 1.328 $'; #' stupid emacs my $remoteVERSION; my $currenthostid="default"; my $currentdomainid; my $client; my $clientip; # IP address of client. -my $clientdns; # DNS name of client. my $clientname; # LonCAPA name of client. my $server; @@ -86,6 +88,7 @@ my $ConnectionType; my %hostid; # ID's for hosts in cluster by ip. my %hostdom; # LonCAPA domain for hosts in cluster. +my %hostname; # DNSname -> ID's mapping. my %hostip; # IPs for hosts in cluster. my %hostdns; # ID's of hosts looked up by DNS name. @@ -112,20 +115,20 @@ my %Dispatcher; # my $lastpwderror = 13; # Largest error number from lcpasswd. my @passwderrors = ("ok", - "lcpasswd must be run as user 'www'", - "lcpasswd got incorrect number of arguments", - "lcpasswd did not get the right nubmer of input text lines", - "lcpasswd too many simultaneous pwd changes in progress", - "lcpasswd User does not exist.", - "lcpasswd Incorrect current passwd", - "lcpasswd Unable to su to root.", - "lcpasswd Cannot set new passwd.", - "lcpasswd Username has invalid characters", - "lcpasswd Invalid characters in password", - "lcpasswd User already exists", - "lcpasswd Something went wrong with user addition.", - "lcpasswd Password mismatch", - "lcpasswd Error filename is invalid"); + "pwchange_failure - lcpasswd must be run as user 'www'", + "pwchange_failure - lcpasswd got incorrect number of arguments", + "pwchange_failure - lcpasswd did not get the right nubmer of input text lines", + "pwchange_failure - lcpasswd too many simultaneous pwd changes in progress", + "pwchange_failure - lcpasswd User does not exist.", + "pwchange_failure - lcpasswd Incorrect current passwd", + "pwchange_failure - lcpasswd Unable to su to root.", + "pwchange_failure - lcpasswd Cannot set new passwd.", + "pwchange_failure - lcpasswd Username has invalid characters", + "pwchange_failure - lcpasswd Invalid characters in password", + "pwchange_failure - lcpasswd User already exists", + "pwchange_failure - lcpasswd Something went wrong with user addition.", + "pwchange_failure - lcpasswd Password mismatch", + "pwchange_failure - lcpasswd Error filename is invalid"); # The array below are lcuseradd error strings.: @@ -177,7 +180,6 @@ sub ResetStatistics { # $initcmd - The full text of the init command. # # Implicit inputs: -# $clientdns - The DNS name of the remote client. # $thisserver - Our DNS name. # # Returns: @@ -186,10 +188,10 @@ sub ResetStatistics { # sub LocalConnection { my ($Socket, $initcmd) = @_; - Debug("Attempting local connection: $initcmd client: $clientdns me: $thisserver"); - if($clientdns ne $thisserver) { + Debug("Attempting local connection: $initcmd client: $clientip me: $thisserver"); + if($clientip ne "127.0.0.1") { &logthis(' LocalConnection rejecting non local: ' - ."$clientdns ne $thisserver "); + ."$clientip ne $thisserver "); close $Socket; return undef; } else { @@ -473,39 +475,11 @@ sub CopyFile { my ($oldfile, $newfile) = @_; - # The file must exist: - - if(-e $oldfile) { - - # Read the old file. - - my $oldfh = IO::File->new("< $oldfile"); - if(!$oldfh) { - return 0; - } - my @contents = <$oldfh>; # Suck in the entire file. - - # write the backup file: - - my $newfh = IO::File->new("> $newfile"); - if(!(defined $newfh)){ - return 0; - } - my $lines = scalar @contents; - for (my $i =0; $i < $lines; $i++) { - print $newfh ($contents[$i]); - } - - $oldfh->close; - $newfh->close; - - chmod(0660, $newfile); - - return 1; - - } else { - return 0; + if (! copy($oldfile,$newfile)) { + return 0; } + chmod(0660, $newfile); + return 1; } # # Host files are passed out with externally visible host IPs. @@ -998,23 +972,13 @@ sub tie_domain_hash { my $user_top_dir = $perlvar{'lonUsersDir'}; my $domain_dir = $user_top_dir."/$domain"; - my $resource_file = $domain_dir."/$namespace.db"; - my %hash; - if(tie(%hash, 'GDBM_File', $resource_file, $how, 0640)) { - if (defined($loghead)) { # Need to log the operation. - my $logFh = IO::File->new(">>$domain_dir/$namespace.hist"); - if($logFh) { - my $timestamp = time; - print $logFh "$loghead:$timestamp:$logtail\n"; - } - $logFh->close; - } - return \%hash; # Return the tied hash. - } else { - return undef; # Tie failed. - } + my $resource_file = $domain_dir."/$namespace"; + return &_locking_hash_tie($resource_file,$namespace,$how,$loghead,$logtail); } +sub untie_domain_hash { + return &_locking_hash_untie(@_); +} # # Ties a user's resource file to a hash. # If necessary, an appropriate history @@ -1040,18 +1004,27 @@ sub tie_user_hash { $namespace=~s/\//\_/g; # / -> _ $namespace=~s/\W//g; # whitespace eliminated. my $proname = propath($domain, $user); - - # Tie the database. - + + my $file_prefix="$proname/$namespace"; + return &_locking_hash_tie($file_prefix,$namespace,$how,$loghead,$what); +} + +sub untie_user_hash { + return &_locking_hash_untie(@_); +} + +# internal routines that handle the actual tieing and untieing process + +sub _do_hash_tie { + my ($file_prefix,$namespace,$how,$loghead,$what) = @_; my %hash; - if(tie(%hash, 'GDBM_File', "$proname/$namespace.db", - $how, 0640)) { + if(tie(%hash, 'GDBM_File', "$file_prefix.db", $how, 0640)) { # If this is a namespace for which a history is kept, # make the history log entry: if (($namespace !~/^nohist\_/) && (defined($loghead))) { my $args = scalar @_; - Debug(" Opening history: $namespace $args"); - my $hfh = IO::File->new(">>$proname/$namespace.hist"); + Debug(" Opening history: $file_prefix $args"); + my $hfh = IO::File->new(">>$file_prefix.hist"); if($hfh) { my $now = time; print $hfh "$loghead:$now:$what\n"; @@ -1062,9 +1035,130 @@ sub tie_user_hash { } else { return undef; } - } +sub _do_hash_untie { + my ($hashref) = @_; + my $result = untie(%$hashref); + return $result; +} + +{ + my $sym; + + sub _locking_hash_tie { + my ($file_prefix,$namespace,$how,$loghead,$what) = @_; + my $lock_type=LOCK_SH; +# Are we reading or writing? + if ($how eq &GDBM_READER()) { +# We are reading + if (!open($sym,"$file_prefix.db.lock")) { +# We don't have a lock file. This could mean +# - that there is no such db-file +# - that it does not have a lock file yet + if ((! -e "$file_prefix.db") && (! -e "$file_prefix.db.gz")) { +# No such file. Forget it. + $! = 2; + return undef; + } +# Apparently just no lock file yet. Make one + open($sym,">>$file_prefix.db.lock"); + } + } elsif ($how eq &GDBM_WRCREAT()) { +# We are writing + open($sym,">>$file_prefix.db.lock"); +# Writing needs exclusive lock + $lock_type=LOCK_EX; + } else { + &logthis("Unknown method $how for $file_prefix"); + die(); + } +# If this is compressed, we will also need an exclusive lock + if (-e "$file_prefix.db.gz") { $lock_type=LOCK_EX; } +# Okay, try to obtain the lock we want + my $failed=0; + eval { + local $SIG{__DIE__}='DEFAULT'; + local $SIG{ALRM}=sub { + $failed=1; + die("failed lock"); + }; + alarm($lond_max_wait_time); + flock($sym,$lock_type); + alarm(0); + }; + if ($failed) { + $! = 100; # throwing error # 100 + return undef; + } +# The file is ours! +# If it is archived, un-archive it now + if (-e "$file_prefix.db.gz") { + system("gunzip $file_prefix.db.gz"); + if (-e "$file_prefix.hist.gz") { + system("gunzip $file_prefix.hist.gz"); + } + } +# Change access mode to non-blocking + $how=$how|&GDBM_NOLOCK(); +# Go ahead and tie the hash + return &_do_hash_tie($file_prefix,$namespace,$how,$loghead,$what); + } + + sub _locking_hash_untie { + my ($hashref) = @_; + my $result = untie(%$hashref); + flock($sym,LOCK_UN); + close($sym); + undef($sym); + return $result; + } +} + +# read_profile +# +# Returns a set of specific entries from a user's profile file. +# this is a utility function that is used by both get_profile_entry and +# get_profile_entry_encrypted. +# +# Parameters: +# udom - Domain in which the user exists. +# uname - User's account name (loncapa account) +# namespace - The profile namespace to open. +# what - A set of & separated queries. +# Returns: +# If all ok: - The string that needs to be shipped back to the user. +# If failure - A string that starts with error: followed by the failure +# reason.. note that this probabyl gets shipped back to the +# user as well. +# +sub read_profile { + my ($udom, $uname, $namespace, $what) = @_; + + my $hashref = &tie_user_hash($udom, $uname, $namespace, + &GDBM_READER()); + if ($hashref) { + my @queries=split(/\&/,$what); + my $qresult=''; + + for (my $i=0;$i<=$#queries;$i++) { + $qresult.="$hashref->{$queries[$i]}&"; # Presumably failure gives empty string. + } + $qresult=~s/\&$//; # Remove trailing & from last lookup. + if (&untie_user_hash($hashref)) { + return $qresult; + } else { + return "error: ".($!+0)." untie (GDBM) Failed"; + } + } else { + if ($!+0 == 2) { + return "error:No such file or GDBM reported bad block error"; + } else { + return "error: ".($!+0)." tie (GDBM) Failed"; + } + } + +} #--------------------- Request Handlers -------------------------------------------- # # By convention each request handler registers itself prior to the sub @@ -1086,7 +1180,6 @@ sub tie_user_hash { # 0 - Program should exit. # Side effects: # Reply information is sent to the client. - sub ping_handler { my ($cmd, $tail, $client) = @_; Debug("$cmd $tail $client .. $currenthostid:"); @@ -1114,7 +1207,6 @@ sub ping_handler { # 0 - Program should exit. # Side effects: # Reply information is sent to the client. - sub pong_handler { my ($cmd, $tail, $replyfd) = @_; @@ -1169,7 +1261,6 @@ sub establish_key_handler { } ®ister_handler("ekey", \&establish_key_handler, 0, 1,1); - # Handler for the load command. Returns the current system load average # to the requestor. # @@ -1204,7 +1295,7 @@ sub load_handler { return 1; } -register_handler("load", \&load_handler, 0, 1, 0); +®ister_handler("load", \&load_handler, 0, 1, 0); # # Process the userload request. This sub returns to the client the current @@ -1234,7 +1325,7 @@ sub user_load_handler { return 1; } -register_handler("userload", \&user_load_handler, 0, 1, 0); +®ister_handler("userload", \&user_load_handler, 0, 1, 0); # Process a request for the authorization type of a user: # (userauth). @@ -1270,8 +1361,10 @@ sub user_authorization_type { my ($type,$otherinfo) = split(/:/,$result); if($type =~ /^krb/) { $type = $result; - } - &Reply( $replyfd, "$type:\n", $userinput); + } else { + $type .= ':'; + } + &Reply( $replyfd, "$type\n", $userinput); } return 1; @@ -1291,7 +1384,6 @@ sub user_authorization_type { # 0 - Program should exit # Implicit Output: # a reply is written to the client. - sub push_file_handler { my ($cmd, $tail, $client) = @_; @@ -1334,7 +1426,6 @@ sub push_file_handler { # Side Effects: # The reply is written to $client. # - sub du_handler { my ($cmd, $ududir, $client) = @_; my ($ududir) = split(/:/,$ududir); # Make 'telnet' testing easier. @@ -1351,24 +1442,26 @@ sub du_handler { # etc. # if (-d $ududir) { - # And as Shakespeare would say to make - # assurance double sure, - # use execute_command to ensure that the command is not executed in - # a shell that can screw us up. - - my $duout = execute_command("du -ks $ududir"); - $duout=~s/[^\d]//g; #preserve only the numbers - &Reply($client,"$duout\n","$cmd:$ududir"); + my $total_size=0; + my $code=sub { + if ($_=~/\.\d+\./) { return;} + if ($_=~/\.meta$/) { return;} + $total_size+=(stat($_))[7]; + }; + chdir($ududir); + find($code,$ududir); + $total_size=int($total_size/1024); + &Reply($client,"$total_size\n","$cmd:$ududir"); } else { - &Failure($client, "bad_directory:$ududir\n","$cmd:$ududir"); - } return 1; } ®ister_handler("du", \&du_handler, 0, 1, 0); - +# +# The ls_handler routine should be considered obosolete and is retained +# for communication with legacy servers. Please see the ls2_handler. # # ls - list the contents of a directory. For each file in the # selected directory the filename followed by the full output of @@ -1386,6 +1479,7 @@ sub du_handler { # The reply is written to $client. # sub ls_handler { + # obsoleted by ls2_handler my ($cmd, $ulsdir, $client) = @_; my $userinput = "$cmd:$ulsdir"; @@ -1398,14 +1492,15 @@ sub ls_handler { if(-d $ulsdir) { if (opendir(LSDIR,$ulsdir)) { while ($ulsfn=readdir(LSDIR)) { - undef $obs, $rights; + undef($obs); + undef($rights); my @ulsstats=stat($ulsdir.'/'.$ulsfn); #We do some obsolete checking here if(-e $ulsdir.'/'.$ulsfn.".meta") { open(FILE, $ulsdir.'/'.$ulsfn.".meta"); my @obsolete=; foreach my $obsolete (@obsolete) { - if($obsolete =~ m|()(on)|) { $obs = 1; } + if($obsolete =~ m/()(on|1)/) { $obs = 1; } if($obsolete =~ m|()(default)|) { $rights = 1; } } } @@ -1432,8 +1527,72 @@ sub ls_handler { } ®ister_handler("ls", \&ls_handler, 0, 1, 0); +# +# Please also see the ls_handler, which this routine obosolets. +# ls2_handler differs from ls_handler in that it escapes its return +# values before concatenating them together with ':'s. +# +# ls2 - list the contents of a directory. For each file in the +# selected directory the filename followed by the full output of +# the stat function is returned. The returned info for each +# file are separated by ':'. The stat fields are separated by &'s. +# Parameters: +# $cmd - The command that dispatched us (ls). +# $ulsdir - The directory path to list... I'm not sure what this +# is relative as things like ls:. return e.g. +# no_such_dir. +# $client - Socket open on the client. +# Returns: +# 1 - indicating that the daemon should not disconnect. +# Side Effects: +# The reply is written to $client. +# +sub ls2_handler { + my ($cmd, $ulsdir, $client) = @_; + my $userinput = "$cmd:$ulsdir"; + my $obs; + my $rights; + my $ulsout=''; + my $ulsfn; + if (-e $ulsdir) { + if(-d $ulsdir) { + if (opendir(LSDIR,$ulsdir)) { + while ($ulsfn=readdir(LSDIR)) { + undef($obs); + undef($rights); + my @ulsstats=stat($ulsdir.'/'.$ulsfn); + #We do some obsolete checking here + if(-e $ulsdir.'/'.$ulsfn.".meta") { + open(FILE, $ulsdir.'/'.$ulsfn.".meta"); + my @obsolete=; + foreach my $obsolete (@obsolete) { + if($obsolete =~ m/()(on|1)/) { $obs = 1; } + if($obsolete =~ m|()(default)|) { + $rights = 1; + } + } + } + my $tmp = $ulsfn.'&'.join('&',@ulsstats); + if ($obs eq '1') { $tmp.="&1"; } else { $tmp.="&0"; } + if ($rights eq '1') { $tmp.="&1"; } else { $tmp.="&0"; } + $ulsout.= &escape($tmp).':'; + } + closedir(LSDIR); + } + } else { + my @ulsstats=stat($ulsdir); + $ulsout.=$ulsfn.'&'.join('&',@ulsstats).':'; + } + } else { + $ulsout='no_such_dir'; + } + if ($ulsout eq '') { $ulsout='empty'; } + &Reply($client, "$ulsout\n", $userinput); # This supports debug logging. + return 1; +} +®ister_handler("ls2", \&ls2_handler, 0, 1, 0); # Process a reinit request. Reinit requests that either # lonc or lond be reinitialized so that an updated @@ -1464,7 +1623,6 @@ sub reinit_process_handler { } return 1; } - ®ister_handler("reinit", \&reinit_process_handler, 1, 0, 1); # Process the editing script for a table edit operation. @@ -1506,8 +1664,7 @@ sub edit_table_handler { } return 1; } -register_handler("edit", \&edit_table_handler, 1, 0, 1); - +®ister_handler("edit", \&edit_table_handler, 1, 0, 1); # # Authenticate a user against the LonCAPA authentication @@ -1562,8 +1719,7 @@ sub authenticate_handler { return 1; } - -register_handler("auth", \&authenticate_handler, 1, 1, 0); +®ister_handler("auth", \&authenticate_handler, 1, 1, 0); # # Change a user's password. Note that this function is complicated by @@ -1626,19 +1782,9 @@ sub change_password_handler { &Failure( $client, "non_authorized\n",$userinput); } } elsif ($howpwd eq 'unix') { - # Unix means we have to access /etc/password - &Debug("auth is unix"); - my $execdir=$perlvar{'lonDaemons'}; - &Debug("Opening lcpasswd pipeline"); - my $pf = IO::File->new("|$execdir/lcpasswd > " - ."$perlvar{'lonDaemons'}" - ."/logs/lcpasswd.log"); - print $pf "$uname\n$npass\n$npass\n"; - close $pf; - my $err = $?; - my $result = ($err>0 ? 'pwchange_failure' : 'ok'); + my $result = &change_unix_password($uname, $npass); &logthis("Result of password change for $uname: ". - &lcpasswdstrerror($?)); + $result); &Reply($client, "$result\n", $userinput); } else { # this just means that the current password mode is not @@ -1654,8 +1800,7 @@ sub change_password_handler { return 1; } -register_handler("passwd", \&change_password_handler, 1, 1, 0); - +®ister_handler("passwd", \&change_password_handler, 1, 1, 0); # # Create a new user. User in this case means a lon-capa user. @@ -1694,18 +1839,10 @@ sub add_user_handler { if (-e $passfilename) { &Failure( $client, "already_exists\n", $userinput); } else { - my @fpparts=split(/\//,$passfilename); - my $fpnow=$fpparts[0].'/'.$fpparts[1].'/'.$fpparts[2]; my $fperror=''; - for (my $i=3;$i<= ($#fpparts-1);$i++) { - $fpnow.='/'.$fpparts[$i]; - unless (-e $fpnow) { - &logthis("mkdir $fpnow"); - unless (mkdir($fpnow,0777)) { - $fperror="error: ".($!+0)." mkdir failed while attempting " - ."makeuser"; - } - } + if (!&mkpath($passfilename)) { + $fperror="error: ".($!+0)." mkdir failed while attempting " + ."makeuser"; } unless ($fperror) { my $result=&make_passwd_file($uname, $umode,$npass, $passfilename); @@ -1746,6 +1883,9 @@ sub add_user_handler { # Implicit inputs: # The authentication systems describe above have their own forms of implicit # input into the authentication process that are described above. +# NOTE: +# This is also used to change the authentication credential values (e.g. passwd). +# # sub change_authentication_handler { @@ -1762,10 +1902,44 @@ sub change_authentication_handler { chomp($npass); $npass=&unescape($npass); + my $oldauth = &get_auth_type($udom, $uname); # Get old auth info. my $passfilename = &password_path($udom, $uname); if ($passfilename) { # Not allowed to create a new user!! - my $result=&make_passwd_file($uname, $umode,$npass,$passfilename); - &Reply($client, $result, $userinput); + # If just changing the unix passwd. need to arrange to run + # passwd since otherwise make_passwd_file will run + # lcuseradd which fails if an account already exists + # (to prevent an unscrupulous LONCAPA admin from stealing + # an existing account by overwriting it as a LonCAPA account). + + if(($oldauth =~/^unix/) && ($umode eq "unix")) { + my $result = &change_unix_password($uname, $npass); + &logthis("Result of password change for $uname: ".$result); + if ($result eq "ok") { + &Reply($client, "$result\n") + } else { + &Failure($client, "$result\n"); + } + } else { + my $result=&make_passwd_file($uname, $umode,$npass,$passfilename); + # + # If the current auth mode is internal, and the old auth mode was + # unix, or krb*, and the user is an author for this domain, + # re-run manage_permissions for that role in order to be able + # to take ownership of the construction space back to www:www + # + + + if( (($oldauth =~ /^unix/) && ($umode eq "internal")) || + (($oldauth =~ /^internal/) && ($umode eq "unix")) ) { + if(&is_author($udom, $uname)) { + &Debug(" Need to manage author permissions..."); + &manage_permissions("/$udom/_au", $udom, $uname, "$umode:"); + } + } + &Reply($client, $result, $userinput); + } + + } else { &Failure($client, "non_authorized\n", $userinput); # Fail the user now. } @@ -1847,6 +2021,7 @@ sub update_resource_handler { my $since=$now-$atime; if ($since>$perlvar{'lonExpire'}) { my $reply=&reply("unsub:$fname","$clientname"); + &devalidate_meta_cache($fname); unlink("$fname"); } else { my $transname="$fname.in.transfer"; @@ -1877,6 +2052,7 @@ sub update_resource_handler { alarm(0); } rename($transname,$fname); + &devalidate_meta_cache($fname); } } &Reply( $client, "ok\n", $userinput); @@ -1890,6 +2066,26 @@ sub update_resource_handler { } ®ister_handler("update", \&update_resource_handler, 0 ,1, 0); +sub devalidate_meta_cache { + my ($url) = @_; + use Cache::Memcached; + my $memcache = new Cache::Memcached({'servers'=>['127.0.0.1:11211']}); + $url = &declutter($url); + $url =~ s-\.meta$--; + my $id = &escape('meta:'.$url); + $memcache->delete($id); +} + +sub declutter { + my $thisfn=shift; + $thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//; + $thisfn=~s/^\///; + $thisfn=~s|^adm/wrapper/||; + $thisfn=~s|^adm/coursedocs/showdoc/||; + $thisfn=~s/^res\///; + $thisfn=~s/\?.+$//; + return $thisfn; +} # # Fetch a user file from a remote server to the user's home directory # userfiles subdir. @@ -1920,21 +2116,10 @@ sub fetch_user_file_handler { # Note that any regular files in the way of this path are # wiped out to deal with some earlier folly of mine. - my $path = $udir; - if ($ufile =~m|(.+)/([^/]+)$|) { - my @parts=split('/',$1); - foreach my $part (@parts) { - $path .= '/'.$part; - if( -f $path) { - unlink($path); - } - if ((-e $path)!=1) { - mkdir($path,0770); - } - } + if (!&mkpath($udir.'/'.$ufile)) { + &Failure($client, "unable_to_create\n", $userinput); } - my $destname=$udir.'/'.$ufile; my $transname=$udir.'/'.$ufile.'.in.transit'; my $remoteurl='http://'.$clientip.'/userfiles/'.$fname; @@ -1978,7 +2163,6 @@ sub fetch_user_file_handler { # # Returns: # 1 - Continue processing. - sub remove_user_file_handler { my ($cmd, $tail, $client) = @_; @@ -2031,7 +2215,6 @@ sub remove_user_file_handler { # # Returns: # 1 - Continue processing. - sub mkdir_user_file_handler { my ($cmd, $tail, $client) = @_; @@ -2045,17 +2228,11 @@ sub mkdir_user_file_handler { } else { my $udir = &propath($udom,$uname); if (-e $udir) { - my $newdir=$udir.'/userfiles/'.$ufile; - if (!-e $newdir) { - mkdir($newdir); - if (!-e $newdir) { - &Failure($client, "failed\n", "$cmd:$tail"); - } else { - &Reply($client, "ok\n", "$cmd:$tail"); - } - } else { - &Failure($client, "not_found\n", "$cmd:$tail"); + my $newdir=$udir.'/userfiles/'.$ufile.'/'; + if (!&mkpath($newdir)) { + &Failure($client, "failed\n", "$cmd:$tail"); } + &Reply($client, "ok\n", "$cmd:$tail"); } else { &Failure($client, "not_home\n", "$cmd:$tail"); } @@ -2073,7 +2250,6 @@ sub mkdir_user_file_handler { # # Returns: # 1 - Continue processing. - sub rename_user_file_handler { my ($cmd, $tail, $client) = @_; @@ -2107,10 +2283,9 @@ sub rename_user_file_handler { } ®ister_handler("renameuserfile", \&rename_user_file_handler, 0,1,0); - # -# Authenticate access to a user file by checking the user's -# session token(?) +# Authenticate access to a user file by checking that the token the user's +# passed also exists in their session file # # Parameters: # cmd - The request keyword that dispatched to tus. @@ -2118,7 +2293,6 @@ sub rename_user_file_handler { # client - Filehandle open on the client. # Return: # 1. - sub token_auth_user_file_handler { my ($cmd, $tail, $client) = @_; @@ -2139,10 +2313,8 @@ sub token_auth_user_file_handler { return 1; } - ®ister_handler("tokenauthuserfile", \&token_auth_user_file_handler, 0,1,0); - # # Unsubscribe from a resource. # @@ -2171,6 +2343,7 @@ sub unsubscribe_handler { return 1; } ®ister_handler("unsub", \&unsubscribe_handler, 0, 1, 0); + # Subscribe to a resource # # Parameters: @@ -2249,7 +2422,7 @@ sub activity_log_handler { return 1; } -register_handler("log", \&activity_log_handler, 0, 1, 0); +®ister_handler("log", \&activity_log_handler, 0, 1, 0); # # Put a namespace entry in a user profile hash. @@ -2281,7 +2454,7 @@ sub put_user_profile_entry { my ($key,$value)=split(/=/,$pair); $hashref->{$key}=$value; } - if (untie(%$hashref)) { + if (&untie_user_hash($hashref)) { &Reply( $client, "ok\n", $userinput); } else { &Failure($client, "error: ".($!+0)." untie(GDBM) failed ". @@ -2289,7 +2462,7 @@ sub put_user_profile_entry { $userinput); } } else { - &Failure( $client, "error: ".($!)." tie(GDBM) Failed ". + &Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". "while attempting put\n", $userinput); } } else { @@ -2300,6 +2473,61 @@ sub put_user_profile_entry { } ®ister_handler("put", \&put_user_profile_entry, 0, 1, 0); +# Put a piece of new data in hash, returns error if entry already exists +# Parameters: +# $cmd - The command that got us here. +# $tail - Tail of the command (remaining parameters). +# $client - File descriptor connected to client. +# Returns +# 0 - Requested to exit, caller should shut down. +# 1 - Continue processing. +# +sub newput_user_profile_entry { + my ($cmd, $tail, $client) = @_; + + my $userinput = "$cmd:$tail"; + + my ($udom,$uname,$namespace,$what) =split(/:/,$tail,4); + if ($namespace eq 'roles') { + &Failure( $client, "refused\n", $userinput); + return 1; + } + + chomp($what); + + my $hashref = &tie_user_hash($udom, $uname, $namespace, + &GDBM_WRCREAT(),"N",$what); + if(!$hashref) { + &Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". + "while attempting put\n", $userinput); + return 1; + } + + my @pairs=split(/\&/,$what); + foreach my $pair (@pairs) { + my ($key,$value)=split(/=/,$pair); + if (exists($hashref->{$key})) { + &Failure($client, "key_exists: ".$key."\n",$userinput); + return 1; + } + } + + foreach my $pair (@pairs) { + my ($key,$value)=split(/=/,$pair); + $hashref->{$key}=$value; + } + + if (&untie_user_hash($hashref)) { + &Reply( $client, "ok\n", $userinput); + } else { + &Failure($client, "error: ".($!+0)." untie(GDBM) failed ". + "while attempting put\n", + $userinput); + } + return 1; +} +®ister_handler("newput", \&newput_user_profile_entry, 0, 1, 0); + # # Increment a profile entry in the user history file. # The history contains keyword value pairs. In this case, @@ -2330,13 +2558,19 @@ sub increment_user_value_handler { my @pairs=split(/\&/,$what); foreach my $pair (@pairs) { my ($key,$value)=split(/=/,$pair); + $value = &unescape($value); # We could check that we have a number... if (! defined($value) || $value eq '') { $value = 1; } $hashref->{$key}+=$value; + if ($namespace eq 'nohist_resourcetracker') { + if ($hashref->{$key} < 0) { + $hashref->{$key} = 0; + } + } } - if (untie(%$hashref)) { + if (&untie_user_hash($hashref)) { &Reply( $client, "ok\n", $userinput); } else { &Failure($client, "error: ".($!+0)." untie(GDBM) failed ". @@ -2354,7 +2588,6 @@ sub increment_user_value_handler { } ®ister_handler("inc", \&increment_user_value_handler, 0, 1, 0); - # # Put a new role for a user. Roles are LonCAPA's packaging of permissions. # Each 'role' a user has implies a set of permissions. Adding a new role @@ -2394,14 +2627,17 @@ sub roles_put_handler { # is done on close this improves the chances the log will be an un- # corrupted ordered thing. if ($hashref) { + my $pass_entry = &get_auth_type($udom, $uname); + my ($auth_type,$pwd) = split(/:/, $pass_entry); + $auth_type = $auth_type.":"; my @pairs=split(/\&/,$what); foreach my $pair (@pairs) { my ($key,$value)=split(/=/,$pair); &manage_permissions($key, $udom, $uname, - &get_auth_type( $udom, $uname)); + $auth_type); $hashref->{$key}=$value; } - if (untie($hashref)) { + if (&untie_user_hash($hashref)) { &Reply($client, "ok\n", $userinput); } else { &Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". @@ -2452,7 +2688,7 @@ sub roles_delete_handler { foreach my $key (@rolekeys) { delete $hashref->{$key}; } - if (untie(%$hashref)) { + if (&untie_user_hash($hashref)) { &Reply($client, "ok\n", $userinput); } else { &Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". @@ -2493,32 +2729,17 @@ sub get_profile_entry { my ($udom,$uname,$namespace,$what) = split(/:/,$tail); chomp($what); - my $hashref = &tie_user_hash($udom, $uname, $namespace, - &GDBM_READER()); - if ($hashref) { - my @queries=split(/\&/,$what); - my $qresult=''; - - for (my $i=0;$i<=$#queries;$i++) { - $qresult.="$hashref->{$queries[$i]}&"; # Presumably failure gives empty string. - } - $qresult=~s/\&$//; # Remove trailing & from last lookup. - if (untie(%$hashref)) { - &Reply($client, "$qresult\n", $userinput); - } else { - &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". - "while attempting get\n", $userinput); - } + + my $replystring = read_profile($udom, $uname, $namespace, $what); + my ($first) = split(/:/,$replystring); + if($first ne "error") { + &Reply($client, "$replystring\n", $userinput); } else { - if ($!+0 == 2) { # +0 coerces errno -> number 2 is ENOENT - &Failure($client, "error:No such file or ". - "GDBM reported bad block error\n", $userinput); - } else { # Some other undifferentiated err. - &Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". - "while attempting get\n", $userinput); - } + &Failure($client, $replystring." while attempting get\n", $userinput); } return 1; + + } ®ister_handler("get", \&get_profile_entry, 0,1,0); @@ -2548,42 +2769,33 @@ sub get_profile_entry_encrypted { my ($cmd,$udom,$uname,$namespace,$what) = split(/:/,$userinput); chomp($what); - my $hashref = &tie_user_hash($udom, $uname, $namespace, - &GDBM_READER()); - if ($hashref) { - my @queries=split(/\&/,$what); - my $qresult=''; - for (my $i=0;$i<=$#queries;$i++) { - $qresult.="$hashref->{$queries[$i]}&"; - } - if (untie(%$hashref)) { - $qresult=~s/\&$//; - if ($cipher) { - my $cmdlength=length($qresult); - $qresult.=" "; - my $encqresult=''; - for(my $encidx=0;$encidx<=$cmdlength;$encidx+=8) { - $encqresult.= unpack("H16", - $cipher->encrypt(substr($qresult, - $encidx, - 8))); - } - &Reply( $client, "enc:$cmdlength:$encqresult\n", $userinput); - } else { - &Failure( $client, "error:no_key\n", $userinput); + my $qresult = read_profile($udom, $uname, $namespace, $what); + my ($first) = split(/:/, $qresult); + if($first ne "error") { + + if ($cipher) { + my $cmdlength=length($qresult); + $qresult.=" "; + my $encqresult=''; + for(my $encidx=0;$encidx<=$cmdlength;$encidx+=8) { + $encqresult.= unpack("H16", + $cipher->encrypt(substr($qresult, + $encidx, + 8))); } + &Reply( $client, "enc:$cmdlength:$encqresult\n", $userinput); } else { - &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". - "while attempting eget\n", $userinput); - } + &Failure( $client, "error:no_key\n", $userinput); + } } else { - &Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". - "while attempting eget\n", $userinput); + &Failure($client, "$qresult while attempting eget\n", $userinput); + } return 1; } -®ister_handler("eget", \&GetProfileEntryEncrypted, 0, 1, 0); +®ister_handler("eget", \&get_profile_entry_encrypted, 0, 1, 0); + # # Deletes a key in a user profile database. # @@ -2602,7 +2814,6 @@ sub get_profile_entry_encrypted { # 0 - Exit server. # # - sub delete_profile_entry { my ($cmd, $tail, $client) = @_; @@ -2618,7 +2829,7 @@ sub delete_profile_entry { foreach my $key (@keys) { delete($hashref->{$key}); } - if (untie(%$hashref)) { + if (&untie_user_hash($hashref)) { &Reply($client, "ok\n", $userinput); } else { &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". @@ -2631,6 +2842,7 @@ sub delete_profile_entry { return 1; } ®ister_handler("del", \&delete_profile_entry, 0, 1, 0); + # # List the set of keys that are defined in a profile database file. # A successful reply from this will contain an & separated list of @@ -2659,7 +2871,7 @@ sub get_profile_keys { foreach my $key (keys %$hashref) { $qresult.="$key&"; } - if (untie(%$hashref)) { + if (&untie_user_hash($hashref)) { $qresult=~s/\&$//; &Reply($client, "$qresult\n", $userinput); } else { @@ -2720,7 +2932,7 @@ sub dump_profile_database { $data{$symb}->{$param}=$value; $data{$symb}->{'v.'.$param}=$v; } - if (untie(%$hashref)) { + if (&untie_user_hash($hashref)) { while (my ($symb,$param_hash) = each(%data)) { while(my ($param,$value) = each (%$param_hash)){ next if ($param =~ /^v\./); # Ignore versions... @@ -2775,27 +2987,44 @@ sub dump_with_regexp { my $userinput = "$cmd:$tail"; - my ($udom,$uname,$namespace,$regexp)=split(/:/,$tail); + my ($udom,$uname,$namespace,$regexp,$range)=split(/:/,$tail); if (defined($regexp)) { $regexp=&unescape($regexp); } else { $regexp='.'; } + my ($start,$end); + if (defined($range)) { + if ($range =~/^(\d+)\-(\d+)$/) { + ($start,$end) = ($1,$2); + } elsif ($range =~/^(\d+)$/) { + ($start,$end) = (0,$1); + } else { + undef($range); + } + } my $hashref = &tie_user_hash($udom, $uname, $namespace, &GDBM_READER()); if ($hashref) { my $qresult=''; + my $count=0; while (my ($key,$value) = each(%$hashref)) { if ($regexp eq '.') { + $count++; + if (defined($range) && $count >= $end) { last; } + if (defined($range) && $count < $start) { next; } $qresult.=$key.'='.$value.'&'; } else { my $unescapeKey = &unescape($key); if (eval('$unescapeKey=~/$regexp/')) { + $count++; + if (defined($range) && $count >= $end) { last; } + if (defined($range) && $count < $start) { next; } $qresult.="$key=$value&"; } } } - if (untie(%$hashref)) { + if (&untie_user_hash($hashref)) { chop($qresult); &Reply($client, "$qresult\n", $userinput); } else { @@ -2809,7 +3038,6 @@ sub dump_with_regexp { return 1; } - ®ister_handler("dump", \&dump_with_regexp, 0, 1, 0); # Store a set of key=value pairs associated with a versioned name. @@ -2841,7 +3069,7 @@ sub store_handler { chomp($what); my @pairs=split(/\&/,$what); my $hashref = &tie_user_hash($udom, $uname, $namespace, - &GDBM_WRCREAT(), "P", + &GDBM_WRCREAT(), "S", "$rid:$what"); if ($hashref) { my $now = time; @@ -2858,7 +3086,7 @@ sub store_handler { $hashref->{"$version:$rid:timestamp"}=$now; $allkeys.='timestamp'; $hashref->{"$version:keys:$rid"}=$allkeys; - if (untie($hashref)) { + if (&untie_user_hash($hashref)) { &Reply($client, "ok\n", $userinput); } else { &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". @@ -2875,6 +3103,86 @@ sub store_handler { return 1; } ®ister_handler("store", \&store_handler, 0, 1, 0); + +# Modify a set of key=value pairs associated with a versioned name. +# +# Parameters: +# $cmd - Request command keyword. +# $tail - Tail of the request. This is a colon +# separated list containing: +# domain/user - User and authentication domain. +# namespace - Name of the database being modified +# rid - Resource keyword to modify. +# v - Version item to modify +# what - new value associated with rid. +# +# $client - Socket open on the client. +# +# +# Returns: +# 1 (keep on processing). +# Side-Effects: +# Writes to the client +sub putstore_handler { + my ($cmd, $tail, $client) = @_; + + my $userinput = "$cmd:$tail"; + + my ($udom,$uname,$namespace,$rid,$v,$what) =split(/:/,$tail); + if ($namespace ne 'roles') { + + chomp($what); + my $hashref = &tie_user_hash($udom, $uname, $namespace, + &GDBM_WRCREAT(), "M", + "$rid:$v:$what"); + if ($hashref) { + my $now = time; + my %data = &hash_extract($what); + my @allkeys; + while (my($key,$value) = each(%data)) { + push(@allkeys,$key); + $hashref->{"$v:$rid:$key"} = $value; + } + my $allkeys = join(':',@allkeys); + $hashref->{"$v:keys:$rid"}=$allkeys; + + if (&untie_user_hash($hashref)) { + &Reply($client, "ok\n", $userinput); + } else { + &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". + "while attempting store\n", $userinput); + } + } else { + &Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". + "while attempting store\n", $userinput); + } + } else { + &Failure($client, "refused\n", $userinput); + } + + return 1; +} +®ister_handler("putstore", \&putstore_handler, 0, 1, 0); + +sub hash_extract { + my ($str)=@_; + my %hash; + foreach my $pair (split(/\&/,$str)) { + my ($key,$value)=split(/=/,$pair); + $hash{$key}=$value; + } + return (%hash); +} +sub hash_to_str { + my ($hash_ref)=@_; + my $str; + foreach my $key (keys(%$hash_ref)) { + $str.=$key.'='.$hash_ref->{$key}.'&'; + } + $str=~s/\&$//; + return $str; +} + # # Dump out all versions of a resource that has key=value pairs associated # with it for each version. These resources are built up via the store @@ -2909,24 +3217,22 @@ sub restore_handler { $namespace=~s/\//\_/g; $namespace=~s/\W//g; chomp($rid); - my $proname=&propath($udom,$uname); my $qresult=''; - my %hash; - if (tie(%hash,'GDBM_File',"$proname/$namespace.db", - &GDBM_READER(),0640)) { - my $version=$hash{"version:$rid"}; + my $hashref = &tie_user_hash($udom, $uname, $namespace, &GDBM_READER()); + if ($hashref) { + my $version=$hashref->{"version:$rid"}; $qresult.="version=$version&"; my $scope; for ($scope=1;$scope<=$version;$scope++) { - my $vkeys=$hash{"$scope:keys:$rid"}; + my $vkeys=$hashref->{"$scope:keys:$rid"}; my @keys=split(/:/,$vkeys); my $key; $qresult.="$scope:keys=$vkeys&"; foreach $key (@keys) { - $qresult.="$scope:$key=".$hash{"$scope:$rid:$key"}."&"; + $qresult.="$scope:$key=".$hashref->{"$scope:$rid:$key"}."&"; } } - if (untie(%hash)) { + if (&untie_user_hash($hashref)) { $qresult=~s/\&$//; &Reply( $client, "$qresult\n", $userinput); } else { @@ -2945,15 +3251,17 @@ sub restore_handler { ®ister_handler("restore", \&restore_handler, 0,1,0); # -# Add a chat message to to a discussion board. +# Add a chat message to a synchronous discussion board. # # Parameters: # $cmd - Request keyword. # $tail - Tail of the command. A colon separated list # containing: # cdom - Domain on which the chat board lives -# cnum - Identifier of the discussion group. -# post - Body of the posting. +# cnum - Course containing the chat board. +# newpost - Body of the posting. +# group - Optional group, if chat board is only +# accessible in a group within the course # $client - Socket open on the client. # Returns: # 1 - Indicating caller should keep on processing. @@ -2968,15 +3276,16 @@ sub send_chat_handler { my $userinput = "$cmd:$tail"; - my ($cdom,$cnum,$newpost)=split(/\:/,$tail); - &chat_add($cdom,$cnum,$newpost); + my ($cdom,$cnum,$newpost,$group)=split(/\:/,$tail); + &chat_add($cdom,$cnum,$newpost,$group); &Reply($client, "ok\n", $userinput); return 1; } ®ister_handler("chatsend", \&send_chat_handler, 0, 1, 0); + # -# Retrieve the set of chat messagss from a discussion board. +# Retrieve the set of chat messages from a discussion board. # # Parameters: # $cmd - Command keyword that initiated the request. @@ -2986,6 +3295,8 @@ sub send_chat_handler { # chat id - Discussion thread(?) # domain/user - Authentication domain and username # of the requesting person. +# group - Optional course group containing +# the board. # $client - Socket open on the client program. # Returns: # 1 - continue processing @@ -2998,9 +3309,9 @@ sub retrieve_chat_handler { my $userinput = "$cmd:$tail"; - my ($cdom,$cnum,$udom,$uname)=split(/\:/,$tail); + my ($cdom,$cnum,$udom,$uname,$group)=split(/\:/,$tail); my $reply=''; - foreach (&get_chat($cdom,$cnum,$udom,$uname)) { + foreach (&get_chat($cdom,$cnum,$udom,$uname,$group)) { $reply.=&escape($_).':'; } $reply=~s/\:$//; @@ -3110,6 +3421,14 @@ sub reply_query_handler { # $tail - Tail of the command. In this case consists of a colon # separated list contaning the domain to apply this to and # an ampersand separated list of keyword=value pairs. +# Each value is a colon separated list that includes: +# description, institutional code and course owner. +# For backward compatibility with versions included +# in LON-CAPA 1.1.X (and earlier) and 1.2.X, institutional +# code and/or course owner are preserved from the existing +# record when writing a new record in response to 1.1 or +# 1.2 implementations of lonnet::flushcourselogs(). +# # $client - Socket open on the client. # Returns: # 1 - indicating that processing should continue @@ -3123,7 +3442,7 @@ sub put_course_id_handler { my $userinput = "$cmd:$tail"; - my ($udom, $what) = split(/:/, $tail); + my ($udom, $what) = split(/:/, $tail,2); chomp($what); my $now=time; my @pairs=split(/\&/,$what); @@ -3131,10 +3450,26 @@ sub put_course_id_handler { my $hashref = &tie_domain_hash($udom, "nohist_courseids", &GDBM_WRCREAT()); if ($hashref) { foreach my $pair (@pairs) { - my ($key,$descr,$inst_code)=split(/=/,$pair); - $hashref->{$key}=$descr.':'.$inst_code.':'.$now; + my ($key,$courseinfo) = split(/=/,$pair,2); + $courseinfo =~ s/=/:/g; + + my @current_items = split(/:/,$hashref->{$key}); + shift(@current_items); # remove description + pop(@current_items); # remove last access + my $numcurrent = scalar(@current_items); + + my @new_items = split(/:/,$courseinfo); + my $numnew = scalar(@new_items); + if ($numcurrent > 0) { + if ($numnew == 1) { # flushcourselogs() from 1.1 or earlier + $courseinfo .= ':'.join(':',@current_items); + } elsif ($numnew == 2) { # flushcourselogs() from 1.2.X + $courseinfo .= ':'.$current_items[$numcurrent-1]; + } + } + $hashref->{$key}=$courseinfo.':'.$now; } - if (untie(%$hashref)) { + if (&untie_domain_hash($hashref)) { &Reply( $client, "ok\n", $userinput); } else { &Failure($client, "error: ".($!+0) @@ -3170,6 +3505,15 @@ sub put_course_id_handler { # description - regular expression that is used to filter # the dump. Only keywords matching this regexp # will be used. +# institutional code - optional supplied code to filter +# the dump. Only courses with an institutional code +# that match the supplied code will be returned. +# owner - optional supplied username of owner to filter +# the dump. Only courses for which the course +# owner matches the supplied username will be +# returned. Implicit assumption that owner +# is a user in the domain in which the +# course database is defined. # $client - The socket open on the client. # Returns: # 1 - Continue processing. @@ -3180,34 +3524,68 @@ sub dump_course_id_handler { my $userinput = "$cmd:$tail"; - my ($udom,$since,$description) =split(/:/,$tail); + my ($udom,$since,$description,$instcodefilter,$ownerfilter,$coursefilter) =split(/:/,$tail); if (defined($description)) { $description=&unescape($description); } else { $description='.'; } + if (defined($instcodefilter)) { + $instcodefilter=&unescape($instcodefilter); + } else { + $instcodefilter='.'; + } + if (defined($ownerfilter)) { + $ownerfilter=&unescape($ownerfilter); + } else { + $ownerfilter='.'; + } + if (defined($coursefilter)) { + $coursefilter=&unescape($coursefilter); + } else { + $coursefilter='.'; + } + unless (defined($since)) { $since=0; } my $qresult=''; my $hashref = &tie_domain_hash($udom, "nohist_courseids", &GDBM_WRCREAT()); if ($hashref) { while (my ($key,$value) = each(%$hashref)) { - my ($descr,$lasttime,$inst_code); - if ($value =~ m/^([^\:]*):([^\:]*):(\d+)$/) { - ($descr,$inst_code,$lasttime)=($1,$2,$3); - } else { - ($descr,$lasttime) = split(/\:/,$value); - } + my ($descr,$lasttime,$inst_code,$owner); + my @courseitems = split(/:/,$value); + $lasttime = pop(@courseitems); + ($descr,$inst_code,$owner)=@courseitems; if ($lasttime<$since) { next; } - if ($description eq '.') { - $qresult.=$key.'='.$descr.':'.$inst_code.'&'; - } else { - my $unescapeVal = &unescape($descr); - if (eval('$unescapeVal=~/\Q$description\E/i')) { - $qresult.=$key.'='.$descr.':'.$inst_code.'&'; + my $match = 1; + unless ($description eq '.') { + my $unescapeDescr = &unescape($descr); + unless (eval('$unescapeDescr=~/\Q$description\E/i')) { + $match = 0; } + } + unless ($instcodefilter eq '.' || !defined($instcodefilter)) { + my $unescapeInstcode = &unescape($inst_code); + unless (eval('$unescapeInstcode=~/\Q$instcodefilter\E/i')) { + $match = 0; + } } + unless ($ownerfilter eq '.' || !defined($ownerfilter)) { + my $unescapeOwner = &unescape($owner); + unless (eval('$unescapeOwner=~/\Q$ownerfilter\E/i')) { + $match = 0; + } + } + unless ($coursefilter eq '.' || !defined($coursefilter)) { + my $unescapeCourse = &unescape($key); + unless (eval('$unescapeCourse=~/^$udom(_)\Q$coursefilter\E$/')) { + $match = 0; + } + } + if ($match == 1) { + $qresult.=$key.'='.$descr.':'.$inst_code.':'.$owner.'&'; + } } - if (untie(%$hashref)) { + if (&untie_domain_hash($hashref)) { chop($qresult); &Reply($client, "$qresult\n", $userinput); } else { @@ -3256,7 +3634,7 @@ sub put_id_handler { my ($key,$value)=split(/=/,$pair); $hashref->{$key}=$value; } - if (untie(%$hashref)) { + if (&untie_domain_hash($hashref)) { &Reply($client, "ok\n", $userinput); } else { &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". @@ -3269,8 +3647,8 @@ sub put_id_handler { return 1; } - ®ister_handler("idput", \&put_id_handler, 0, 1, 0); + # # Retrieves a set of id values from the id database. # Returns an & separated list of results, one for each requested id to the @@ -3305,7 +3683,7 @@ sub get_id_handler { for (my $i=0;$i<=$#queries;$i++) { $qresult.="$hashref->{$queries[$i]}&"; } - if (untie(%$hashref)) { + if (&untie_domain_hash($hashref)) { $qresult=~s/\&$//; &Reply($client, "$qresult\n", $userinput); } else { @@ -3319,10 +3697,261 @@ sub get_id_handler { return 1; } +®ister_handler("idget", \&get_id_handler, 0, 1, 0); + +# +# Puts broadcast e-mail sent by Domain Coordinator in nohist_dcmail database +# +# Parameters +# $cmd - Command keyword that caused us to be dispatched. +# $tail - Tail of the command. Consists of a colon separated: +# domain - the domain whose dcmail we are recording +# email Consists of key=value pair +# where key is unique msgid +# and value is message (in XML) +# $client - Socket open on the client. +# +# Returns: +# 1 - indicating processing should continue. +# Side effects +# reply is written to $client. +# +sub put_dcmail_handler { + my ($cmd,$tail,$client) = @_; + my $userinput = "$cmd:$tail"; + + my ($udom,$what)=split(/:/,$tail); + chomp($what); + my $hashref = &tie_domain_hash($udom, "nohist_dcmail", &GDBM_WRCREAT()); + if ($hashref) { + my ($key,$value)=split(/=/,$what); + $hashref->{$key}=$value; + } + if (&untie_domain_hash($hashref)) { + &Reply($client, "ok\n", $userinput); + } else { + &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". + "while attempting dcmailput\n", $userinput); + } + return 1; +} +®ister_handler("dcmailput", \&put_dcmail_handler, 0, 1, 0); + +# +# Retrieves broadcast e-mail from nohist_dcmail database +# Returns to client an & separated list of key=value pairs, +# where key is msgid and value is message information. +# +# Parameters +# $cmd - Command keyword that caused us to be dispatched. +# $tail - Tail of the command. Consists of a colon separated: +# domain - the domain whose dcmail table we dump +# startfilter - beginning of time window +# endfilter - end of time window +# sendersfilter - & separated list of username:domain +# for senders to search for. +# $client - Socket open on the client. +# +# Returns: +# 1 - indicating processing should continue. +# Side effects +# reply (& separated list of msgid=messageinfo pairs) is +# written to $client. +# +sub dump_dcmail_handler { + my ($cmd, $tail, $client) = @_; + + my $userinput = "$cmd:$tail"; + my ($udom,$startfilter,$endfilter,$sendersfilter) = split(/:/,$tail); + chomp($sendersfilter); + my @senders = (); + if (defined($startfilter)) { + $startfilter=&unescape($startfilter); + } else { + $startfilter='.'; + } + if (defined($endfilter)) { + $endfilter=&unescape($endfilter); + } else { + $endfilter='.'; + } + if (defined($sendersfilter)) { + $sendersfilter=&unescape($sendersfilter); + @senders = map { &unescape($_) } split(/\&/,$sendersfilter); + } + + my $qresult=''; + my $hashref = &tie_domain_hash($udom, "nohist_dcmail", &GDBM_WRCREAT()); + if ($hashref) { + while (my ($key,$value) = each(%$hashref)) { + my $match = 1; + my ($timestamp,$subj,$uname,$udom) = + split(/:/,&unescape(&unescape($key)),5); # yes, twice really + $subj = &unescape($subj); + unless ($startfilter eq '.' || !defined($startfilter)) { + if ($timestamp < $startfilter) { + $match = 0; + } + } + unless ($endfilter eq '.' || !defined($endfilter)) { + if ($timestamp > $endfilter) { + $match = 0; + } + } + unless (@senders < 1) { + unless (grep/^$uname:$udom$/,@senders) { + $match = 0; + } + } + if ($match == 1) { + $qresult.=$key.'='.$value.'&'; + } + } + if (&untie_domain_hash($hashref)) { + chop($qresult); + &Reply($client, "$qresult\n", $userinput); + } else { + &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". + "while attempting dcmaildump\n", $userinput); + } + } else { + &Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". + "while attempting dcmaildump\n", $userinput); + } + return 1; +} -register_handler("idget", \&get_id_handler, 0, 1, 0); +®ister_handler("dcmaildump", \&dump_dcmail_handler, 0, 1, 0); # +# Puts domain roles in nohist_domainroles database +# +# Parameters +# $cmd - Command keyword that caused us to be dispatched. +# $tail - Tail of the command. Consists of a colon separated: +# domain - the domain whose roles we are recording +# role - Consists of key=value pair +# where key is unique role +# and value is start/end date information +# $client - Socket open on the client. +# +# Returns: +# 1 - indicating processing should continue. +# Side effects +# reply is written to $client. +# + +sub put_domainroles_handler { + my ($cmd,$tail,$client) = @_; + + my $userinput = "$cmd:$tail"; + my ($udom,$what)=split(/:/,$tail); + chomp($what); + my @pairs=split(/\&/,$what); + my $hashref = &tie_domain_hash($udom, "nohist_domainroles", &GDBM_WRCREAT()); + if ($hashref) { + foreach my $pair (@pairs) { + my ($key,$value)=split(/=/,$pair); + $hashref->{$key}=$value; + } + if (&untie_domain_hash($hashref)) { + &Reply($client, "ok\n", $userinput); + } else { + &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". + "while attempting domroleput\n", $userinput); + } + } else { + &Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". + "while attempting domroleput\n", $userinput); + } + + return 1; +} + +®ister_handler("domroleput", \&put_domainroles_handler, 0, 1, 0); + +# +# Retrieves domain roles from nohist_domainroles database +# Returns to client an & separated list of key=value pairs, +# where key is role and value is start and end date information. +# +# Parameters +# $cmd - Command keyword that caused us to be dispatched. +# $tail - Tail of the command. Consists of a colon separated: +# domain - the domain whose domain roles table we dump +# $client - Socket open on the client. +# +# Returns: +# 1 - indicating processing should continue. +# Side effects +# reply (& separated list of role=start/end info pairs) is +# written to $client. +# +sub dump_domainroles_handler { + my ($cmd, $tail, $client) = @_; + + my $userinput = "$cmd:$tail"; + my ($udom,$startfilter,$endfilter,$rolesfilter) = split(/:/,$tail); + chomp($rolesfilter); + my @roles = (); + if (defined($startfilter)) { + $startfilter=&unescape($startfilter); + } else { + $startfilter='.'; + } + if (defined($endfilter)) { + $endfilter=&unescape($endfilter); + } else { + $endfilter='.'; + } + if (defined($rolesfilter)) { + $rolesfilter=&unescape($rolesfilter); + @roles = split(/\&/,$rolesfilter); + } + + my $hashref = &tie_domain_hash($udom, "nohist_domainroles", &GDBM_WRCREAT()); + if ($hashref) { + my $qresult = ''; + while (my ($key,$value) = each(%$hashref)) { + my $match = 1; + my ($start,$end) = split(/:/,&unescape($value)); + my ($trole,$uname,$udom,$runame,$rudom,$rsec) = split(/:/,&unescape($key)); + unless ($startfilter eq '.' || !defined($startfilter)) { + if ($start >= $startfilter) { + $match = 0; + } + } + unless ($endfilter eq '.' || !defined($endfilter)) { + if ($end <= $endfilter) { + $match = 0; + } + } + unless (@roles < 1) { + unless (grep/^$trole$/,@roles) { + $match = 0; + } + } + if ($match == 1) { + $qresult.=$key.'='.$value.'&'; + } + } + if (&untie_domain_hash($hashref)) { + chop($qresult); + &Reply($client, "$qresult\n", $userinput); + } else { + &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". + "while attempting domrolesdump\n", $userinput); + } + } else { + &Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". + "while attempting domrolesdump\n", $userinput); + } + return 1; +} + +®ister_handler("domrolesdump", \&dump_domainroles_handler, 0, 1, 0); + + # Process the tmpput command I'm not sure what this does.. Seems to # create a file in the lonDaemons/tmp directory of the form $id.tmp # where Id is the client's ip concatenated with a sequence number. @@ -3363,6 +3992,7 @@ sub tmp_put_handler { } ®ister_handler("tmpput", \&tmp_put_handler, 0, 1, 0); + # Processes the tmpget command. This command returns the contents # of a temporary resource file(?) created via tmpput. # @@ -3375,7 +4005,6 @@ sub tmp_put_handler { # 1 - Inidcating processing can continue. # Side effects: # A reply is sent to the client. - # sub tmp_get_handler { my ($cmd, $id, $client) = @_; @@ -3398,6 +4027,7 @@ sub tmp_get_handler { return 1; } ®ister_handler("tmpget", \&tmp_get_handler, 0, 1, 0); + # # Process the tmpdel command. This command deletes a temp resource # created by the tmpput command. @@ -3431,6 +4061,7 @@ sub tmp_del_handler { } ®ister_handler("tmpdel", \&tmp_del_handler, 0, 1, 0); + # # Processes the setannounce command. This command # creates a file named announce.txt in the top directory of @@ -3469,6 +4100,7 @@ sub set_announce_handler { return 1; } ®ister_handler("setannounce", \&set_announce_handler, 0, 1, 0); + # # Return the version of the daemon. This can be used to determine # the compatibility of cross version installations or, alternatively to @@ -3493,6 +4125,7 @@ sub get_version_handler { return 1; } ®ister_handler("version", \&get_version_handler, 0, 1, 0); + # Set the current host and domain. This is used to support # multihomed systems. Each IP of the system, or even separate daemons # on the same IP can be treated as handling a separate lonCAPA virtual @@ -3629,6 +4262,7 @@ sub validate_course_owner_handler { return 1; } ®ister_handler("autonewcourse", \&validate_course_owner_handler, 0, 1, 0); + # # Validate a course section in the official schedule of classes # from the institutions point of view (part of autoenrollment). @@ -3709,7 +4343,6 @@ sub create_auto_enroll_password_handler # # Returns: # 1 - Continue processing. - sub retrieve_auto_file_handler { my ($cmd, $tail, $client) = @_; my $userinput = "cmd:$tail"; @@ -3794,20 +4427,156 @@ sub get_institutional_code_format_handle return 1; } +®ister_handler("autoinstcodeformat", + \&get_institutional_code_format_handler,0,1,0); -®ister_handler("autoinstcodeformat", \&get_institutional_code_format_handler, - 0,1,0); - +# Get domain specific conditions for import of student photographs to a course # +# Retrieves information from photo_permission subroutine in localenroll. +# Returns outcome (ok) if no processing errors, and whether course owner is +# required to accept conditions of use (yes/no). # +# +sub photo_permission_handler { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my $cdom = $tail; + my ($perm_reqd,$conditions); + my $outcome; + eval { + local($SIG{__DIE__})='DEFAULT'; + $outcome = &localenroll::photo_permission($cdom,\$perm_reqd, + \$conditions); + }; + if (!$@) { + &Reply($client, &escape($outcome.':'.$perm_reqd.':'. $conditions)."\n", + $userinput); + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } + return 1; +} +®ister_handler("autophotopermission",\&photo_permission_handler,0,1,0); + # +# Checks if student photo is available for a user in the domain, in the user's +# directory (in /userfiles/internal/studentphoto.jpg). +# Uses localstudentphoto:fetch() to ensure there is an up to date copy of +# the student's photo. + +sub photo_check_handler { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my ($udom,$uname,$pid) = split(/:/,$tail); + $udom = &unescape($udom); + $uname = &unescape($uname); + $pid = &unescape($pid); + my $path=&propath($udom,$uname).'/userfiles/internal/'; + if (!-e $path) { + &mkpath($path); + } + my $response; + my $result = &localstudentphoto::fetch($udom,$uname,$pid,\$response); + $result .= ':'.$response; + &Reply($client, &escape($result)."\n",$userinput); + return 1; +} +®ister_handler("autophotocheck",\&photo_check_handler,0,1,0); + # +# Retrieve information from localenroll about whether to provide a button +# for users who have enbled import of student photos to initiate an +# update of photo files for registered students. Also include +# comment to display alongside button. + +sub photo_choice_handler { + my ($cmd, $tail, $client) = @_; + my $userinput = "$cmd:$tail"; + my $cdom = &unescape($tail); + my ($update,$comment); + eval { + local($SIG{__DIE__})='DEFAULT'; + ($update,$comment) = &localenroll::manager_photo_update($cdom); + }; + if (!$@) { + &Reply($client,&escape($update).':'.&escape($comment)."\n",$userinput); + } else { + &Failure($client,"unknown_cmd\n",$userinput); + } + return 1; +} +®ister_handler("autophotochoice",\&photo_choice_handler,0,1,0); + # +# Gets a student's photo to exist (in the correct image type) in the user's +# directory. +# Formal Parameters: +# $cmd - The command request that got us dispatched. +# $tail - A colon separated set of words that will be split into: +# $domain - student's domain +# $uname - student username +# $type - image type desired +# $client - The socket open on the client. +# Returns: +# 1 - continue processing. + +sub student_photo_handler { + my ($cmd, $tail, $client) = @_; + my ($domain,$uname,$ext,$type) = split(/:/, $tail); + + my $path=&propath($domain,$uname). '/userfiles/internal/'; + my $filename = 'studentphoto.'.$ext; + if ($type eq 'thumbnail') { + $filename = 'studentphoto_tn.'.$ext; + } + if (-e $path.$filename) { + &Reply($client,"ok\n","$cmd:$tail"); + return 1; + } + &mkpath($path); + my $file; + if ($type eq 'thumbnail') { + eval { + local($SIG{__DIE__})='DEFAULT'; + $file=&localstudentphoto::fetch_thumbnail($domain,$uname); + }; + } else { + $file=&localstudentphoto::fetch($domain,$uname); + } + if (!$file) { + &Failure($client,"unavailable\n","$cmd:$tail"); + return 1; + } + if (!-e $path.$filename) { &convert_photo($file,$path.$filename); } + if (-e $path.$filename) { + &Reply($client,"ok\n","$cmd:$tail"); + return 1; + } + &Failure($client,"unable_to_convert\n","$cmd:$tail"); + return 1; +} +®ister_handler("studentphoto", \&student_photo_handler, 0, 1, 0); + +# mkpath makes all directories for a file, expects an absolute path with a +# file or a trailing / if just a dir is passed +# returns 1 on success 0 on failure +sub mkpath { + my ($file)=@_; + my @parts=split(/\//,$file,-1); + my $now=$parts[0].'/'.$parts[1].'/'.$parts[2]; + for (my $i=3;$i<= ($#parts-1);$i++) { + $now.='/'.$parts[$i]; + if (!-e $now) { + if (!mkdir($now,0770)) { return 0; } + } + } + return 1; +} + #--------------------------------------------------------------- # # Getting, decoding and dispatching requests: # - # # Get a Request: # Gets a Request message from the client. The transaction @@ -3840,6 +4609,22 @@ sub process_request { # fix all the userinput -> user_input. my $wasenc = 0; # True if request was encrypted. # ------------------------------------------------------------ See if encrypted + # for command + # sethost: + # : + # we just send it to the processor + # for + # sethost::: + # we do the implict set host and then do the command + if ($userinput =~ /^sethost:/) { + (my $cmd,my $newid,$userinput) = split(':',$userinput,3); + if (defined($userinput)) { + &sethost("$cmd:$newid"); + } else { + $userinput = "$cmd:$newid"; + } + } + if ($userinput =~ /^enc/) { $userinput = decipher($userinput); $wasenc=1; @@ -3914,114 +4699,7 @@ sub process_request { } -#------------------- Commands not yet in spearate handlers. -------------- - -#------------------------------- is auto-enrollment enabled? - if ($userinput =~/^autorun/) { - if (isClient) { - my ($cmd,$cdom) = split(/:/,$userinput); - my $outcome = &localenroll::run($cdom); - print $client "$outcome\n"; - } else { - print $client "0\n"; - } -#------------------------------- get official sections (for auto-enrollment). - } elsif ($userinput =~/^autogetsections/) { - if (isClient) { - my ($cmd,$coursecode,$cdom)=split(/:/,$userinput); - my @secs = &localenroll::get_sections($coursecode,$cdom); - my $seclist = &escape(join(':',@secs)); - print $client "$seclist\n"; - } else { - print $client "refused\n"; - } -#----------------------- validate owner of new course section (for auto-enrollment). - } elsif ($userinput =~/^autonewcourse/) { - if (isClient) { - my ($cmd,$inst_course_id,$owner,$cdom)=split(/:/,$userinput); - my $outcome = &localenroll::new_course($inst_course_id,$owner,$cdom); - print $client "$outcome\n"; - } else { - print $client "refused\n"; - } -#-------------- validate course section in schedule of classes (for auto-enrollment). - } elsif ($userinput =~/^autovalidatecourse/) { - if (isClient) { - my ($cmd,$inst_course_id,$cdom)=split(/:/,$userinput); - my $outcome=&localenroll::validate_courseID($inst_course_id,$cdom); - print $client "$outcome\n"; - } else { - print $client "refused\n"; - } -#--------------------------- create password for new user (for auto-enrollment). - } elsif ($userinput =~/^autocreatepassword/) { - if (isClient) { - my ($cmd,$authparam,$cdom)=split(/:/,$userinput); - my ($create_passwd,$authchk); - ($authparam,$create_passwd,$authchk) = &localenroll::create_password($authparam,$cdom); - print $client &escape($authparam.':'.$create_passwd.':'.$authchk)."\n"; - } else { - print $client "refused\n"; - } -#--------------------------- read and remove temporary files (for auto-enrollment). - } elsif ($userinput =~/^autoretrieve/) { - if (isClient) { - my ($cmd,$filename) = split(/:/,$userinput); - my $source = $perlvar{'lonDaemons'}.'/tmp/'.$filename; - if ( (-e $source) && ($filename ne '') ) { - my $reply = ''; - if (open(my $fh,$source)) { - while (<$fh>) { - chomp($_); - $_ =~ s/^\s+//g; - $_ =~ s/\s+$//g; - $reply .= $_; - } - close($fh); - print $client &escape($reply)."\n"; -# unlink($source); - } else { - print $client "error\n"; - } - } else { - print $client "error\n"; - } - } else { - print $client "refused\n"; - } -#--------------------- read and retrieve institutional code format -# (for support form). - } elsif ($userinput =~/^autoinstcodeformat/) { - if (isClient) { - my $reply; - my($cmd,$cdom,$course) = split(/:/,$userinput); - my @pairs = split/\&/,$course; - my %instcodes = (); - my %codes = (); - my @codetitles = (); - my %cat_titles = (); - my %cat_order = (); - foreach (@pairs) { - my ($key,$value) = split/=/,$_; - $instcodes{&unescape($key)} = &unescape($value); - } - my $formatreply = &localenroll::instcode_format($cdom,\%instcodes,\%codes,\@codetitles,\%cat_titles,\%cat_order); - if ($formatreply eq 'ok') { - my $codes_str = &hash2str(%codes); - my $codetitles_str = &array2str(@codetitles); - my $cat_titles_str = &hash2str(%cat_titles); - my $cat_order_str = &hash2str(%cat_order); - print $client $codes_str.':'.$codetitles_str.':'.$cat_titles_str.':'.$cat_order_str."\n"; - } - } else { - print $client "refused\n"; - } -# ------------------------------------------------------------- unknown command - - } else { - # unknown command - print $client "unknown_cmd\n"; - } + print $client "unknown_cmd\n"; # -------------------------------------------------------------------- complete Debug("process_request - returning 1"); return 1; @@ -4282,13 +4960,27 @@ sub ReadHostTable { open (CONFIG,"$perlvar{'lonTabDir'}/hosts.tab") || die "Can't read host file"; my $myloncapaname = $perlvar{'lonHostID'}; Debug("My loncapa name is : $myloncapaname"); + my %name_to_ip; while (my $configline=) { - if (!($configline =~ /^\s*\#/)) { - my ($id,$domain,$role,$name,$ip)=split(/:/,$configline); - chomp($ip); $ip=~s/\D+$//; + if ($configline !~ /^\s*\#/ && $configline !~ /^\s*$/ ) { + my ($id,$domain,$role,$name)=split(/:/,$configline); + $name=~s/\s//g; + my $ip; + if (!exists($name_to_ip{$name})) { + $ip = gethostbyname($name); + if (!$ip || length($ip) ne 4) { + &logthis("Skipping host $id name $name no IP found\n"); + next; + } + $ip=inet_ntoa($ip); + $name_to_ip{$name} = $ip; + } else { + $ip = $name_to_ip{$name}; + } $hostid{$ip}=$id; # LonCAPA name of host by IP. $hostdom{$id}=$domain; # LonCAPA domain name of host. - $hostip{$id}=$ip; # IP address of host. + $hostname{$id}=$name; # LonCAPA name -> DNS name + $hostip{$id}=$ip; # IP address of host. $hostdns{$name} = $id; # LonCAPA name of host by DNS. if ($id eq $perlvar{'lonHostID'}) { @@ -4425,8 +5117,6 @@ sub Reply { Debug("Request was $request Reply was $reply"); $Transactions++; - - } @@ -4469,7 +5159,7 @@ sub logstatus { flock(LOG,LOCK_EX); print LOG $$."\t".$clientname."\t".$currenthostid."\t" .$status."\t".$lastlog."\t $keymode\n"; - flock(DB,LOCK_UN); + flock(LOG,LOCK_UN); close(LOG); } &status("Finished logging"); @@ -4498,22 +5188,6 @@ sub status { $0='lond: '.$what.' '.$local; } -# -------------------------------------------------------- Escape Special Chars - -sub escape { - my $str=shift; - $str =~ s/(\W)/"%".unpack('H2',$1)/eg; - return $str; -} - -# ----------------------------------------------------- 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 $str; -} - # ----------------------------------------------------------- Send USR1 to lonc sub reconlonc { @@ -4540,12 +5214,12 @@ sub reconlonc { sub subreply { my ($cmd,$server)=@_; - my $peerfile="$perlvar{'lonSockDir'}/$server"; + my $peerfile="$perlvar{'lonSockDir'}/".$hostname{$server}; my $sclient=IO::Socket::UNIX->new(Peer =>"$peerfile", Type => SOCK_STREAM, Timeout => 10) or return "con_lost"; - print $sclient "$cmd\n"; + print $sclient "sethost:$server:$cmd\n"; my $answer=<$sclient>; chomp($answer); if (!$answer) { $answer="con_lost"; } @@ -4561,7 +5235,7 @@ sub reply { $answer=subreply("ping",$server); if ($answer ne $server) { &logthis("sub reply: answer != server answer is $answer, server is $server"); - &reconlonc("$perlvar{'lonSockDir'}/$server"); + &reconlonc("$perlvar{'lonSockDir'}/".$hostname{$server}); } $answer=subreply($cmd,$server); } @@ -4588,7 +5262,7 @@ sub sub_sql_reply { Type => SOCK_STREAM, Timeout => 10) or return "con_lost"; - print $sclient "$cmd\n"; + print $sclient "$cmd:$currentdomainid\n"; my $answer=<$sclient>; chomp($answer); if (!$answer) { $answer="con_lost"; } @@ -4654,6 +5328,8 @@ $SIG{USR2} = \&UpdateHosts; ReadHostTable; +my $dist=`$perlvar{'lonDaemons'}/distprobe`; + # -------------------------------------------------------------- # Accept connections. When a connection comes in, it is validated # and if good, a child process is created to process transactions @@ -4700,8 +5376,6 @@ sub make_new_child { if (defined($iaddr)) { $clientip = inet_ntoa($iaddr); Debug("Connected with $clientip"); - $clientdns = gethostbyaddr($iaddr, AF_INET); - Debug("Connected with $clientdns by name"); } else { &logthis("Unable to determine clientip"); $clientip='Unavailable'; @@ -4731,7 +5405,9 @@ sub make_new_child { # my $tmpsnum=0; # Now global #---------------------------------------------------- kerberos 5 initialization &Authen::Krb5::init_context(); - &Authen::Krb5::init_ets(); + unless (($dist eq 'fedora4') || ($dist eq 'suse9.3')) { + &Authen::Krb5::init_ets(); + } &status('Accepted connection'); # ============================================================================= @@ -4741,18 +5417,23 @@ sub make_new_child { ReadManagerTable; # May also be a manager!! - my $clientrec=($hostid{$clientip} ne undef); - my $ismanager=($managers{$clientip} ne undef); + my $outsideip=$clientip; + if ($clientip eq '127.0.0.1') { + $outsideip=$hostip{$perlvar{'lonHostID'}}; + } + + my $clientrec=($hostid{$outsideip} ne undef); + my $ismanager=($managers{$outsideip} ne undef); $clientname = "[unknonwn]"; if($clientrec) { # Establish client type. $ConnectionType = "client"; - $clientname = $hostid{$clientip}; + $clientname = $hostid{$outsideip}; if($ismanager) { $ConnectionType = "both"; } } else { $ConnectionType = "manager"; - $clientname = $managers{$clientip}; + $clientname = $managers{$outsideip}; } my $clientok; @@ -4860,7 +5541,7 @@ sub make_new_child { # no need to try to do recon's to myself next; } - &reconlonc("$perlvar{'lonSockDir'}/$id"); + &reconlonc("$perlvar{'lonSockDir'}/".$hostname{$id}); } &logthis("Established connection: $clientname"); &status('Will listen to '.$clientname); @@ -4896,8 +5577,38 @@ sub make_new_child { exit; } +# +# Determine if a user is an author for the indicated domain. +# +# Parameters: +# domain - domain to check in . +# user - Name of user to check. +# +# Return: +# 1 - User is an author for domain. +# 0 - User is not an author for domain. +sub is_author { + my ($domain, $user) = @_; + &Debug("is_author: $user @ $domain"); + my $hashref = &tie_user_hash($domain, $user, "roles", + &GDBM_READER()); + + # Author role should show up as a key /domain/_au + + my $key = "/$domain/_au"; + my $value; + if (defined($hashref)) { + $value = $hashref->{$key}; + } + + if(defined($value)) { + &Debug("$user @ $domain is an author"); + } + + return defined($value); +} # # Checks to see if the input roleput request was to set # an author role. If so, invokes the lchtmldir script to set @@ -4909,16 +5620,17 @@ sub make_new_child { # user - Name of the user for which the role is being put. # authtype - The authentication type associated with the user. # -sub manage_permissions -{ - +sub manage_permissions { my ($request, $domain, $user, $authtype) = @_; + &Debug("manage_permissions: $request $domain $user $authtype"); + # See if the request is of the form /$domain/_au - if($request =~ /^(\/$domain\/_au)$/) { # It's an author rolesput... + if($request =~ /^(\/\Q$domain\E\/_au)$/) { # It's an author rolesput... my $execdir = $perlvar{'lonDaemons'}; my $userhome= "/home/$user" ; &logthis("system $execdir/lchtmldir $userhome $user $authtype"); + &Debug("Setting homedir permissions for $userhome"); system("$execdir/lchtmldir $userhome $user $authtype"); } } @@ -4934,12 +5646,7 @@ sub manage_permissions # sub password_path { my ($domain, $user) = @_; - - - my $path = &propath($domain, $user); - $path .= "/passwd"; - - return $path; + return &propath($domain, $user).'/passwd'; } # Password Filename @@ -5014,12 +5721,7 @@ sub get_auth_type Debug("Password info = $realpassword\n"); my ($authtype, $contentpwd) = split(/:/, $realpassword); Debug("Authtype = $authtype, content = $contentpwd\n"); - my $availinfo = ''; - if($authtype eq 'krb4' or $authtype eq 'krb5') { - $availinfo = $contentpwd; - } - - return "$authtype:$availinfo"; + return "$authtype:$contentpwd"; } else { Debug("Returning nouser"); return "nouser"; @@ -5117,7 +5819,7 @@ sub validate_user { my $krbserver = &Authen::Krb5::parse_name($krbservice); my $credentials= &Authen::Krb5::cc_default(); $credentials->initialize($krbclient); - my $krbreturn = &Authen::KRb5::get_in_tkt_with_password($krbclient, + my $krbreturn = &Authen::Krb5::get_in_tkt_with_password($krbclient, $krbserver, $password, $credentials); @@ -5172,39 +5874,51 @@ sub addline { } sub get_chat { - my ($cdom,$cname,$udom,$uname)=@_; - my %hash; - my $proname=&propath($cdom,$cname); + my ($cdom,$cname,$udom,$uname,$group)=@_; + my @entries=(); - if (tie(%hash,'GDBM_File',"$proname/nohist_chatroom.db", - &GDBM_READER(),0640)) { - @entries=map { $_.':'.$hash{$_} } sort keys %hash; - untie %hash; + my $namespace = 'nohist_chatroom'; + my $namespace_inroom = 'nohist_inchatroom'; + if (defined($group)) { + $namespace .= '_'.$group; + $namespace_inroom .= '_'.$group; + } + my $hashref = &tie_user_hash($cdom, $cname, $namespace, + &GDBM_READER()); + if ($hashref) { + @entries=map { $_.':'.$hashref->{$_} } sort(keys(%$hashref)); + &untie_user_hash($hashref); } my @participants=(); my $cutoff=time-60; - if (tie(%hash,'GDBM_File',"$proname/nohist_inchatroom.db", - &GDBM_WRCREAT(),0640)) { - $hash{$uname.':'.$udom}=time; - foreach (sort keys %hash) { - if ($hash{$_}>$cutoff) { - $participants[$#participants+1]='active_participant:'.$_; + $hashref = &tie_user_hash($cdom, $cname, $namespace_inroom, + &GDBM_WRCREAT()); + if ($hashref) { + $hashref->{$uname.':'.$udom}=time; + foreach my $user (sort(keys(%$hashref))) { + if ($hashref->{$user}>$cutoff) { + push(@participants, 'active_participant:'.$user); } } - untie %hash; + &untie_user_hash($hashref); } return (@participants,@entries); } sub chat_add { - my ($cdom,$cname,$newchat)=@_; - my %hash; - my $proname=&propath($cdom,$cname); + my ($cdom,$cname,$newchat,$group)=@_; my @entries=(); my $time=time; - if (tie(%hash,'GDBM_File',"$proname/nohist_chatroom.db", - &GDBM_WRCREAT(),0640)) { - @entries=map { $_.':'.$hash{$_} } sort keys %hash; + my $namespace = 'nohist_chatroom'; + my $logfile = 'chatroom.log'; + if (defined($group)) { + $namespace .= '_'.$group; + $logfile = 'chatroom_'.$group.'.log'; + } + my $hashref = &tie_user_hash($cdom, $cname, $namespace, + &GDBM_WRCREAT()); + if ($hashref) { + @entries=map { $_.':'.$hashref->{$_} } sort(keys(%$hashref)); my ($lastid)=($entries[$#entries]=~/^(\w+)\:/); my ($thentime,$idnum)=split(/\_/,$lastid); my $newid=$time.'_000000'; @@ -5214,21 +5928,22 @@ sub chat_add { $idnum=substr('000000'.$idnum,-6,6); $newid=$time.'_'.$idnum; } - $hash{$newid}=$newchat; + $hashref->{$newid}=$newchat; my $expired=$time-3600; - foreach (keys %hash) { - my ($thistime)=($_=~/(\d+)\_/); + foreach my $comment (keys(%$hashref)) { + my ($thistime) = ($comment=~/(\d+)\_/); if ($thistime<$expired) { - delete $hash{$_}; + delete $hashref->{$comment}; } } - untie %hash; - } - { - my $hfh; - if ($hfh=IO::File->new(">>$proname/chatroom.log")) { - print $hfh "$time:".&unescape($newchat)."\n"; + { + my $proname=&propath($cdom,$cname); + if (open(CHATLOG,">>$proname/$logfile")) { + print CHATLOG ("$time:".&unescape($newchat)."\n"); + } + close(CHATLOG); } + &untie_user_hash($hashref); } } @@ -5317,7 +6032,7 @@ sub thisversion { sub subscribe { my ($userinput,$clientip)=@_; my $result; - my ($cmd,$fname)=split(/:/,$userinput); + my ($cmd,$fname)=split(/:/,$userinput,2); my $ownership=&ishome($fname); if ($ownership eq 'owner') { # explitly asking for the current version? @@ -5361,6 +6076,35 @@ sub subscribe { } return $result; } +# Change the passwd of a unix user. The caller must have +# first verified that the user is a loncapa user. +# +# Parameters: +# user - Unix user name to change. +# pass - New password for the user. +# Returns: +# ok - if success +# other - Some meaningfule error message string. +# NOTE: +# invokes a setuid script to change the passwd. +sub change_unix_password { + my ($user, $pass) = @_; + + &Debug("change_unix_password"); + my $execdir=$perlvar{'lonDaemons'}; + &Debug("Opening lcpasswd pipeline"); + my $pf = IO::File->new("|$execdir/lcpasswd > " + ."$perlvar{'lonDaemons'}" + ."/logs/lcpasswd.log"); + print $pf "$user\n$pass\n$pass\n"; + close $pf; + my $err = $?; + return ($err < @passwderrors) ? $passwderrors[$err] : + "pwchange_falure - unknown error"; + + +} + sub make_passwd_file { my ($uname, $umode,$npass,$passfilename)=@_; @@ -5368,7 +6112,11 @@ sub make_passwd_file { if ($umode eq 'krb4' or $umode eq 'krb5') { { my $pf = IO::File->new(">$passfilename"); - print $pf "$umode:$npass\n"; + if ($pf) { + print $pf "$umode:$npass\n"; + } else { + $result = "pass_file_failed_error"; + } } } elsif ($umode eq 'internal') { my $salt=time; @@ -5377,12 +6125,20 @@ sub make_passwd_file { { &Debug("Creating internal auth"); my $pf = IO::File->new(">$passfilename"); - print $pf "internal:$ncpass\n"; + if($pf) { + print $pf "internal:$ncpass\n"; + } else { + $result = "pass_file_failed_error"; + } } } elsif ($umode eq 'localauth') { { my $pf = IO::File->new(">$passfilename"); - print $pf "localauth:$npass\n"; + if($pf) { + print $pf "localauth:$npass\n"; + } else { + $result = "pass_file_failed_error"; + } } } elsif ($umode eq 'unix') { { @@ -5408,26 +6164,40 @@ sub make_passwd_file { print $se "$npass\n"; print $se "$lc_error_file\n"; # Status -> unique file. } - my $error = IO::File->new("< $lc_error_file"); - my $useraddok = <$error>; - $error->close; - unlink($lc_error_file); - - chomp $useraddok; - - if($useraddok > 0) { - my $error_text = &lcuseraddstrerror($useraddok); - &logthis("Failed lcuseradd: $error_text"); - $result = "lcuseradd_failed:$error_text\n"; + if (-r $lc_error_file) { + &Debug("Opening error file: $lc_error_file"); + my $error = IO::File->new("< $lc_error_file"); + my $useraddok = <$error>; + $error->close; + unlink($lc_error_file); + + chomp $useraddok; + + if($useraddok > 0) { + my $error_text = &lcuseraddstrerror($useraddok); + &logthis("Failed lcuseradd: $error_text"); + $result = "lcuseradd_failed:$error_text\n"; + } else { + my $pf = IO::File->new(">$passfilename"); + if($pf) { + print $pf "unix:\n"; + } else { + $result = "pass_file_failed_error"; + } + } } else { - my $pf = IO::File->new(">$passfilename"); - print $pf "unix:\n"; + &Debug("Could not locate lcuseradd error: $lc_error_file"); + $result="bug_lcuseradd_no_output_file"; } } } elsif ($umode eq 'none') { { my $pf = IO::File->new("> $passfilename"); - print $pf "none:\n"; + if($pf) { + print $pf "none:\n"; + } else { + $result = "pass_file_failed_error"; + } } } else { $result="auth_mode_error\n"; @@ -5435,9 +6205,19 @@ sub make_passwd_file { return $result; } +sub convert_photo { + my ($start,$dest)=@_; + system("convert $start $dest"); +} + sub sethost { my ($remotereq) = @_; my (undef,$hostid)=split(/:/,$remotereq); + # ignore sethost if we are already correct + if ($hostid eq $currenthostid) { + return 'ok'; + } + if (!defined($hostid)) { $hostid=$perlvar{'lonHostID'}; } if ($hostip{$perlvar{'lonHostID'}} eq $hostip{$hostid}) { $currenthostid =$hostid; @@ -5863,7 +6643,6 @@ to the client, and the connection is clo IO::Socket IO::File Apache::File -Symbol POSIX Crypt::IDEA LWP::UserAgent()