--- loncom/lonnet/perl/lonnet.pm 2006/01/27 20:37:21 1.704 +++ loncom/lonnet/perl/lonnet.pm 2006/05/16 18:50:55 1.738 @@ -1,7 +1,7 @@ # The LearningOnline Network # TCP networking package # -# $Id: lonnet.pm,v 1.704 2006/01/27 20:37:21 albertel Exp $ +# $Id: lonnet.pm,v 1.738 2006/05/16 18:50:55 albertel Exp $ # # Copyright Michigan State University Board of Trustees # @@ -45,7 +45,6 @@ qw(%perlvar %hostname %badServerCache %i use IO::Socket; use GDBM_File; -use Apache::Constants qw(:common :http); use HTML::LCParser; use HTML::Parser; use Fcntl qw(:flock); @@ -86,6 +85,29 @@ delayed. # --------------------------------------------------------------------- Logging +{ + my $logid; + sub instructor_log { + my ($hash_name,$storehash,$delflag,$uname,$udom)=@_; + $logid++; + my $id=time().'00000'.$$.'00000'.$logid; + return &Apache::lonnet::put('nohist_'.$hash_name, + { $id => { + 'exe_uname' => $env{'user.name'}, + 'exe_udom' => $env{'user.domain'}, + 'exe_time' => time(), + 'exe_ip' => $ENV{'REMOTE_ADDR'}, + 'delflag' => $delflag, + 'logentry' => $storehash, + 'uname' => $uname, + 'udom' => $udom, + } + }, + $env{'course.'.$env{'request.course.id'}.'.domain'}, + $env{'course.'.$env{'request.course.id'}.'.num'} + ); + } +} sub logtouch { my $execdir=$perlvar{'lonDaemons'}; @@ -260,6 +282,13 @@ sub critical { sub transfer_profile_to_env { my ($lonidsdir,$handle)=@_; + if (!defined($lonidsdir)) { + $lonidsdir = $perlvar{'lonIDsDir'}; + } + if (!defined($handle)) { + ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| ); + } + my @profile; { open(my $idf,"$lonidsdir/$handle.id"); @@ -272,6 +301,8 @@ sub transfer_profile_to_env { for ($envi=0;$envi<=$#profile;$envi++) { chomp($profile[$envi]); my ($envname,$envvalue)=split(/=/,$profile[$envi],2); + $envname=&unescape($envname); + $envvalue=&unescape($envvalue); $env{$envname} = $envvalue; if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) { if ($time < time-300) { @@ -324,6 +355,8 @@ sub appenv { chomp($oldenv[$i]); if ($oldenv[$i] ne '') { my ($name,$value)=split(/=/,$oldenv[$i],2); + $name=&unescape($name); + $value=&unescape($value); unless (defined($newenv{$name})) { $newenv{$name}=$value; } @@ -336,7 +369,7 @@ sub appenv { } my $newname; foreach $newname (keys %newenv) { - print $fh "$newname=$newenv{$newname}\n"; + print $fh &escape($newname).'='.&escape($newenv{$newname})."\n"; } close($fh); } @@ -348,7 +381,6 @@ sub appenv { sub delenv { my $delthis=shift; - my %newenv=(); if (($delthis=~/user\.role/) || ($delthis=~/user\.priv/)) { &logthis("WARNING: ". "Attempt to delete from environment ".$delthis); @@ -381,8 +413,10 @@ sub delenv { return 'error: '.$!; } foreach my $cur_key (@oldenv) { - if ($cur_key=~/^$delthis/) { - my ($key,undef) = split('=',$cur_key,2); + my $unescaped_cur_key = &unescape($cur_key); + if ($unescaped_cur_key=~/^$delthis/) { + my ($key) = split('=',$cur_key,2); + $key = &unescape($key); delete($env{$key}); } else { print $fh $cur_key; @@ -840,11 +874,9 @@ sub getsection { } sub save_cache { - my ($r)=@_; - if (! $r->is_initial_req()) { return DECLINED; } &purge_remembered(); + #&Apache::loncommon::validate_page(); undef(%env); - return OK; } my $to_remember=-1; @@ -947,25 +979,62 @@ sub userenvironment { sub studentphoto { my ($udom,$unam,$ext) = @_; my $home=&Apache::lonnet::homeserver($unam,$udom); - my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext",$home); - my $url="/uploaded/$udom/$unam/internal/studentphoto.".$ext; - if ($ret ne 'ok') { - return '/adm/lonKaputt/lonlogo_broken.gif'; + 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)); + } + } + } + return '/adm/lonKaputt/lonlogo_broken.gif'; +} + +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'; + } } - my $tokenurl=&Apache::lonnet::tokenwrapper($url); - return $tokenurl; } # -------------------------------------------------------------------- New chat sub chatsend { - my ($newentry,$anon)=@_; + 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($newentry)).':'.$group,$chome); } # ------------------------------------------ Find current version of a resource @@ -1108,7 +1177,9 @@ sub ssi { my $ua=new LWP::UserAgent; my $request; - + + $form{'no_update_last_known'}=1; + if (%form) { $request=new HTTP::Request('POST',"http://".$ENV{'HTTP_HOST'}.$fn); $request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys %form)); @@ -1281,7 +1352,7 @@ sub clean_filename { # --------------- 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 filenam is in $env{"form.$formname"} +# the desired filenam is in $env{"form.$formname.filename"} # $coursedoc - if true up to the current course # if false # $subdir - directory in userfile to store the file into @@ -1292,7 +1363,7 @@ sub clean_filename { sub userfileupload { - my ($formname,$coursedoc,$subdir,$parser,$allfiles,$codebase)=@_; + my ($formname,$coursedoc,$subdir,$parser,$allfiles,$codebase,$destuname,$destudom)=@_; if (!defined($subdir)) { $subdir='unknown'; } my $fname=$env{'form.'.$formname.'.filename'}; $fname=&clean_filename($fname); @@ -1315,6 +1386,7 @@ sub userfileupload { close($fh); return $fullpath.'/'.$fname; } + # Create the directory if not present $fname="$subdir/$fname"; if ($coursedoc) { @@ -1330,9 +1402,19 @@ sub userfileupload { $fname,$formname,$parser, $allfiles,$codebase); } + } elsif (defined($destuname)) { + my $docuname=$destuname; + my $docudom=$destudom; + return &finishuserfileupload($docuname,$docudom,$formname, + $fname,$parser,$allfiles,$codebase); + } else { my $docuname=$env{'user.name'}; my $docudom=$env{'user.domain'}; + if (exists($env{'form.group'})) { + $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); } @@ -2518,7 +2600,7 @@ sub restore { # ---------------------------------------------------------- Course Description sub coursedescription { - my $courseid=shift; + my ($courseid,$args)=@_; $courseid=~s/^\///; $courseid=~s/\_/\//g; my ($cdomain,$cnum)=split(/\//,$courseid); @@ -2528,7 +2610,27 @@ 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 agin + 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'})) { @@ -2546,7 +2648,9 @@ sub coursedescription { $envhash{'course.'.$normalid.'.num'}=$cnum; } } - &appenv(%envhash); + if (!$args->{'one_time'}) { + &appenv(%envhash); + } return %returnhash; } @@ -2812,6 +2916,13 @@ sub dump { return %returnhash; } +# --------------------------------------------------------- dumpstore interface + +sub dumpstore { + my ($namespace,$udomain,$uname,$regexp,$range)=@_; + return &dump($namespace,$udomain,$uname,$regexp,$range); +} + # -------------------------------------------------------------- keys interface sub getkeys { @@ -2953,25 +3064,53 @@ sub newput { # --------------------------------------------------------- putstore interface sub putstore { - my ($namespace,$storehash,$udomain,$uname)=@_; + 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 $items=''; - my %allitems = (); - foreach (keys %$storehash) { - if ($_ =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) { - my $key = $1.':keys:'.$2; - $allitems{$key} .= $3.':'; - } - $items.=$_.'='.&freeze_escape($$storehash{$_}).'&'; - } - foreach (keys %allitems) { - $allitems{$_} =~ s/\:$//; - $items.= $_.'='.$allitems{$_}.'&'; + foreach my $key (keys(%$storehash)) { + $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&'; } $items=~s/\&$//; - return &reply("put:$udomain:$uname:$namespace:$items",$uhome); + my $esc_symb=&escape($symb); + my $esc_v=&escape($version); + my $reply = + &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items", + $uhome); + if ($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,$udomain); + my %newstorehash; + foreach (keys %$storehash) { + my $key = $version.':'.&escape($symb).':'.$_; + $newstorehash{$key} = $storehash->{$_}; + } + my $items=''; + my %allitems = (); + foreach (keys %newstorehash) { + if ($_ =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) { + my $key = $1.':keys:'.$2; + $allitems{$key} .= $3.':'; + } + $items.=$_.'='.&freeze_escape($newstorehash{$_}).'&'; + } + foreach (keys %allitems) { + $allitems{$_} =~ s/\:$//; + $items.= $_.'='.$allitems{$_}.'&'; + } + $items=~s/\&$//; + return &reply("put:$udomain:$uname:$namespace:$items",$uhome); } # ------------------------------------------------------ critical put interface @@ -2983,7 +3122,7 @@ sub cput { my $uhome=&homeserver($uname,$udomain); my $items=''; foreach (keys %$storehash) { - $items.=escape($_).'='.&freeze_escape($$storehash{$_}).'&'; + $items.=&escape($_).'='.&freeze_escape($$storehash{$_}).'&'; } $items=~s/\&$//; return &critical("put:$udomain:$uname:$namespace:$items",$uhome); @@ -3081,6 +3220,7 @@ sub customaccess { sub allowed { my ($priv,$uri,$symb)=@_; + my $ver_orguri=$uri; $uri=&deversion($uri); my $orguri=$uri; $uri=&declutter($uri); @@ -3093,12 +3233,29 @@ sub allowed { } # Free bre access to user's own portfolio contents - my ($space,$domain,$name,$dir)=split('/',$uri); + my ($space,$domain,$name,@dir)=split('/',$uri); if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) && - ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir)) { + ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) { return 'F'; } +# bre access to group if user has rgf priv for this group and course. + if (($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 $1; + } + } + } + } + # Free bre to public access if ($priv eq 'bre') { @@ -3181,7 +3338,7 @@ sub allowed { $thisallowed.=$1; } } else { - my $refuri=$env{'httpref.'.$orguri}; + my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri}; if ($refuri) { if ($refuri =~ m|^/adm/|) { $thisallowed='F'; @@ -3313,7 +3470,7 @@ sub allowed { my ($cdom,$cnum,$csec)=split(/\//,$courseid); my $prefix='course.'.$cdom.'_'.$cnum.'.'; if ((time-$env{$prefix.'last_cache'})>$expiretime) { - &coursedescription($courseid); + &coursedescription($courseid,{'freshen_cache' => 1}); } if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/) || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) { @@ -3412,16 +3569,17 @@ sub allowed { return 'F'; } +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 $uri=&deversion(&declutter(shift)); - my @uriparts=split(/\//,$uri); - my $filename=$uriparts[$#uriparts]; - my $pathname=$uri; - $pathname=~s|/\Q$filename\E$||; - $pathname=~s/^adm\/wrapper\///; - $pathname=~s/^adm\/coursedocs\/showdoc\///; + my ($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}=~ /\&\Q$filename\E\:([\d\|]+)\&/); @@ -3694,6 +3852,82 @@ sub auto_create_password { return ($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 $maxtries = 1; + foreach (keys %{$affiliatesref}) { + $cmd .= $_.'='.join(",",@{$$affiliatesref{$_}}).'%%'; + } + $cmd =~ s/%%$//; + $cmd = &escape($cmd); + my $query = 'institutionalphotos'; + my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver); + unless ($queryid=~/^\Q$host\E\_/) { + &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum); + return 'error: '.$queryid; + } + my $reply = &get_query_reply($queryid); + my $tries = 1; + while (($reply=~/^timeout/) && ($tries < $maxtries)) { + $reply = &get_query_reply($queryid); + $tries ++; + } + if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) { + &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries); + } else { + my @responses = split(/:/,$reply); + my $outcome = shift(@responses); + foreach my $item (@responses) { + my ($key,$value) = split(/=/,$item); + $$photo{$key} = $value; + } + return $outcome; + } + return 'error'; +} + sub auto_instcode_format { my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,$cat_order) = @_; my $courses = ''; @@ -3782,31 +4016,51 @@ sub get_group_membership { sub get_users_groups { my ($udom,$uname,$courseid) = @_; + my @usersgroups; my $cachetime=1800; $courseid=~s/\_/\//g; $courseid=~s/^(\w)/\/$1/; my $hashid="$udom:$uname:$courseid"; - my ($result,$cached)=&is_cached_new('getgroups',$hashid); - if (defined($cached)) { return $result; } - - my %roleshash = &dump('roles',$udom,$uname,$courseid); - my ($tmp) = keys(%roleshash); - if ($tmp=~/^error:/) { - &logthis('Error retrieving roles: '.$tmp.' for '.$uname.':'.$udom); - return ''; - } else { - my $grouplist; - foreach my $key (keys %roleshash) { - if ($key =~ /^\Q$courseid\E\/(\w+)\_gr$/) { - unless ($roleshash{$key} =~ /_1_1$/) { # deleted membership - $grouplist .= $1.':'; + my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid); + if (defined($cached)) { + @usersgroups = split(/:/,$grouplist); + } else { + $grouplist = ''; + my %roleshash = &dump('roles',$udom,$uname,$courseid); + my ($tmp) = keys(%roleshash); + if ($tmp=~/^error:/) { + &logthis('Error retrieving roles: '.$tmp.' for '.$uname.':'.$udom); + } else { + my $access_end = $env{'course.'.$courseid. + '.default_enrollment_end_date'}; + my $now = time; + foreach my $key (keys(%roleshash)) { + if ($key =~ /^\Q$courseid\E\/(\w+)\_gr$/) { + 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); } - $grouplist =~ s/:$//; - return &do_cache_new('getgroups',$hashid,$grouplist,$cachetime); } + return @usersgroups; } sub devalidate_getgroups_cache { @@ -4550,13 +4804,69 @@ sub GetFileTimestamp { } } +sub stat_file { + my ($uri) = @_; + $uri = &clutter($uri); + + # we want just the url part without the unneeded accessor url bits + if ($uri =~ m-^/adm/-) { + $uri=~s-^/adm/wrapper/-/-; + $uri=~s-^/adm/coursedocs/showdoc/-/-; + } + my ($udom,$uname,$file,$dir); + if ($uri =~ m-^/(uploaded|editupload)/-) { + ($udom,$uname,$file) = + ($uri =~ m-/(?:uploaded|editupload)/?([^/]*)/?([^/]*)/?(.*)-); + $file = 'userfiles/'.$file; + $dir = &Apache::loncommon::propath($udom,$uname); + } + if ($uri =~ m-^/res/-) { + ($udom,$uname) = + ($uri =~ m-/(?:res)/?([^/]*)/?([^/]*)/-); + $file = $uri; + } + + if (!$udom || !$uname || !$file) { + # unable to handle the uri + return (); + } + + my ($result) = &dirlist($file,$udom,$uname,$dir); + my @stats = split('&', $result); + + if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') { + shift(@stats); #filename is first + return @stats; + } + 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 $number=shift; if (!defined($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 { @@ -4564,43 +4874,49 @@ sub directcondval { } } +# 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 $result; } @@ -4717,8 +5033,8 @@ sub EXT_cache_set { # --------------------------------------------------------- Value of a Variable sub EXT { - my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_; + my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_; unless ($varname) { return ''; } #get real user name/domain, courseid and symb my $courseid; @@ -4855,7 +5171,7 @@ sub EXT { # ----------------------------------------------------- Cascading lookup scheme my $symbp=$symbparm; - my $mapp=(&decode_symb($symbp))[0]; + my $mapp=&deversion((&decode_symb($symbp))[0]); my $symbparm=$symbp.'.'.$spacequalifierrest; my $mapparm=$mapp.'___(all).'.$spacequalifierrest; @@ -4863,20 +5179,15 @@ sub EXT { if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) { $section=$env{'request.course.sec'}; - @groups=&sort_course_groups($env{'request.course.groups'},$courseid); - if (@groups > 0) { - @groups = sort(@groups); - } + @groups = split(/:/,$env{'request.course.groups'}); + @groups=&sort_course_groups($courseid,@groups); } else { if (! defined($usection)) { $section=&getsection($udom,$uname,$courseid); } else { $section = $usection; } - my $grouplist = &get_users_groups($udom,$uname,$courseid); - if ($grouplist) { - @groups=&sort_course_groups($grouplist,$courseid); - } + @groups = &get_users_groups($udom,$uname,$courseid); } my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest; @@ -5000,20 +5311,37 @@ sub check_group_parms { } sub sort_course_groups { # Sort groups based on defined rankings. Default is sort(). - my ($grouplist,$courseid) = @_; - my @groups = split/:/,$grouplist; - if (@groups > 1) { - @groups = sort(@groups); - } + my ($courseid,@groups) = @_; + @groups = sort(@groups); return @groups; } sub packages_tab_default { my ($uri,$varname)=@_; 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'))) { my ($pack_type,$pack_part)=split(/_/,$package,2); + if ($pack_type eq 'default') { + $do_default=1; + } elsif ($pack_type eq 'extension') { + push(@extension,[$package,$pack_type,$pack_part]); + } else { + push(@specifics,[$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"}; } @@ -5022,6 +5350,20 @@ sub packages_tab_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; } @@ -5107,16 +5449,16 @@ sub metadata { } else { $metaentry{':packages'}=$package.$keyroot; } - foreach (sort 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; @@ -5164,11 +5506,12 @@ sub metadata { my $dir=$filename; $dir=~s|[^/]*$||; $location=&filelocation($dir,$location); - foreach (sort(split(/\,/,&metadata($uri,'keys', - $location,$unikey, - $depthcount+1)))) { - $metaentry{':'.$_}=$metaentry{':'.$_}; - $metathesekeys{$_}=1; + my $metadata = + &metadata($uri,'keys', $location,$unikey, + $depthcount+1); + foreach my $meta (split(',',$metadata)) { + $metaentry{':'.$meta}=$metaentry{':'.$meta}; + $metathesekeys{$meta}=1; } } } else { @@ -5177,8 +5520,9 @@ sub metadata { $unikey.='_'.$token->[2]->{'name'}; } $metathesekeys{$unikey}=1; - foreach (@{$token->[3]}) { - $metaentry{':'.$unikey.'.'.$_}=$token->[2]->{$_}; + foreach my $param (@{$token->[3]}) { + $metaentry{':'.$unikey.'.'.$param} = + $token->[2]->{$param}; } my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry)); my $default=$metaentry{':'.$unikey.'.default'}; @@ -5199,14 +5543,14 @@ sub metadata { } } my ($extension) = ($uri =~ /\.(\w+)$/); - foreach my $key (sort(keys(%packagetab))) { + 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'})) { - foreach my $key (sort(keys(%packagetab))) { + 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', @@ -5224,15 +5568,22 @@ sub metadata { my $dir=$filename; $dir=~s|[^/]*$||; $location=&filelocation($dir,$location); - foreach (sort(split(/\,/,&metadata($uri,'keys', - $location,'_rights', - $depthcount+1)))) { - #$metaentry{':'.$_}=$metacache{$uri}->{':'.$_}; - $metathesekeys{$_}=1; + my $rights_metadata = + &metadata($uri,'keys',$location,'_rights', + $depthcount+1); + foreach my $rights (split(',',$rights_metadata)) { + #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights}; + $metathesekeys{$rights}=1; } } } - $metaentry{':keys'}=join(',',keys %metathesekeys); + # uniqifiy package listing + my %seen; + my @uniq_packages = + grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'})); + $metaentry{':packages'} = join(',',@uniq_packages); + + $metaentry{':keys'} = join(',',keys(%metathesekeys)); &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri); $metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys); &do_cache_new('meta',$uri,\%metaentry,60*60); @@ -5268,7 +5619,7 @@ sub metadata_create_package_def { 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{':'.$metakey.'.name'}; @@ -5356,9 +5707,12 @@ sub symblist { if (($env{'request.course.fn'}) && (%newhash)) { if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', &GDBM_WRCREAT(),0640)) { - foreach (keys %newhash) { - $hash{declutter($_)}=&encode_symb($mapname,$newhash{$_}->[1], - $newhash{$_}->[0]); + 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'; @@ -6205,7 +6559,7 @@ sub clutter { && $thisfn!~/\.(sequence|page)$/) { $thisfn='/adm/coursedocs/showdoc'.$thisfn; } else { - &logthis("Got a blank emb style"); +# &logthis("Got a blank emb style"); } } } @@ -6273,7 +6627,6 @@ sub goodbye { &logthis(sprintf("%-20s is %s",'hits',$hits)); &flushcourselogs(); &logthis("Shutting down"); - return DONE; } BEGIN { @@ -7026,6 +7379,27 @@ all args are optional =item * +dumpstore($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) : +replaces a &store() version of data with a replacement set of data +for a particular resource in a namespace passed in the $storehash hash +reference + +=item * + tmpstore($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, $storehash should @@ -7079,17 +7453,6 @@ put($namespace,$storehash,$udom,$uname) =item * -putstore($namespace,$storehash,$udomain,$uname) : stores hash in namesp -keys used in storehash include version information (e.g., 1:$symb:message etc.) as -used in records written by &store and retrieved by &restore. This function -was created for use in editing discussion posts, without incrementing the -version number included in the key for a particular post. The colon -separated list of attribute names (e.g., the value associated with the key -1:keys:$symb) is also generated and passed in the ampersand separated -items sent to lonnet::reply(). - -=item * - cput($namespace,$storehash,$udom,$uname) : critical put ($udom and $uname are optional) @@ -7219,6 +7582,16 @@ getfile($file,$caller) : two cases - req - returns the entire contents of a file or -1; it properly subscribes to and replicates the file if neccessary. + +=item * + +stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file + reference + +returns either a stat() list of data about the file or an empty list +if the file doesn't exist or couldn't find out about it (connection +problems or user unknown) + =item * filelocation($dir,$file) : returns file system location of a file