--- loncom/publisher/lonpublisher.pm 2001/12/05 22:00:14 1.61 +++ loncom/publisher/lonpublisher.pm 2002/08/07 19:45:05 1.86 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Publication Handler # -# $Id: lonpublisher.pm,v 1.61 2001/12/05 22:00:14 albertel Exp $ +# $Id: lonpublisher.pm,v 1.86 2002/08/07 19:45:05 albertel Exp $ # # Copyright Michigan State University Board of Trustees # @@ -39,23 +39,45 @@ # 06/23,08/07,08/11,8/13,8/17,8/18,8/24,9/26,10/16 Gerd Kortemeyer # 12/04,12/05 Guy Albertelli # 12/05 Gerd Kortemeyer +# 12/05 Guy Albertelli +# 12/06,12/07 Gerd Kortemeyer +# 12/15,12/16 Scott Harrison +# 12/25 Gerd Kortemeyer +# YEAR=2002 +# 1/16,1/17 Scott Harrison +# 1/17 Gerd Kortemeyer +# +### + +############################################################################### +## ## +## ORGANIZATION OF THIS PERL MODULE ## +## ## +## 1. Modules used by this module ## +## 2. Various subroutines ## +## 3. Publication Step One ## +## 4. Phase Two ## +## 5. Main Handler ## +## ## +############################################################################### package Apache::lonpublisher; +# ------------------------------------------------- modules used by this module use strict; use Apache::File; use File::Copy; use Apache::Constants qw(:common :http :methods); -use HTML::TokeParser; +use HTML::LCParser; use Apache::lonxml; use Apache::lonhomework; use Apache::loncacc; use DBI; +use Apache::lonnet(); +use Apache::loncommon(); my %addid; my %nokey; -my %language; -my %cprtag; my %metadatafields; my %metadatakeys; @@ -66,11 +88,10 @@ my $cuname; my $cudom; # ----------------------------------------------- Evaluate string with metadata - sub metaeval { my $metastring=shift; - my $parser=HTML::TokeParser->new(\$metastring); + my $parser=HTML::LCParser->new(\$metastring); my $token; while ($token=$parser->get_token) { if ($token->[0] eq 'S') { @@ -88,14 +109,14 @@ sub metaeval { if (defined($token->[2]->{'name'})) { $unikey.='_'.$token->[2]->{'name'}; } - map { + foreach (@{$token->[3]}) { $metadatafields{$unikey.'.'.$_}=$token->[2]->{$_}; if ($metadatakeys{$unikey}) { $metadatakeys{$unikey}.=','.$_; } else { $metadatakeys{$unikey}=$_; } - } @{$token->[3]}; + } if ($metadatafields{$unikey}) { my $newentry=$parser->get_text('/'.$entry); unless (($metadatafields{$unikey}=~/$newentry/) || @@ -110,7 +131,6 @@ sub metaeval { } # -------------------------------------------------------- Read a metadata file - sub metaread { my ($logfile,$fn)=@_; unless (-e $fn) { @@ -129,8 +149,9 @@ sub metaread { # ---------------------------- convert 'time' format into a datetime sql format sub sqltime { + my $timef=shift @_; my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = - localtime(@_[0]); + localtime($timef); $mon++; $year+=1900; return "$year-$mon-$mday $hour:$min:$sec"; } @@ -149,13 +170,17 @@ sub hiddenfield { } sub selectbox { - my ($title,$name,$value,%options)=@_; - my $selout="\n

$title:
".''; + foreach (@idlist) { + $selout.='';} + } return $selout.''; } @@ -164,15 +189,27 @@ sub selectbox { sub urlfixup { my ($url,$target)=@_; unless ($url) { return ''; } + #javascript code needs no fixing + if ($url =~ /^javascript:/i) { return $url; } + if ($url =~ /^mailto:/i) { return $url; } + #internal document links need no fixing + if ($url =~ /^\#/) { return $url; } my ($host)=($url=~/(?:http\:\/\/)*([^\/]+)/); - map { + foreach (values %Apache::lonnet::hostname) { if ($_ eq $host) { $url=~s/^http\:\/\///; $url=~s/^$host//; } - } values %Apache::lonnet::hostname; + } if ($url=~/^http\:\/\//) { return $url; } $url=~s/\~$cuname/res\/$cudom\/$cuname/; + return $url; +} + + +sub absoluteurl { + my ($url,$target)=@_; + unless ($url) { return ''; } if ($target) { $target=~s/\/[^\/]+$//; $url=&Apache::lonnet::hreflocation($target,$url); @@ -180,6 +217,226 @@ sub urlfixup { return $url; } +sub set_allow { + my ($allow,$logfile,$target,$tag,$oldurl)=@_; + my $newurl=&urlfixup($oldurl,$target); + my $return_url=$oldurl; + print $logfile 'GUYURL: '.$tag.':'.$oldurl.' - '.$newurl."\n"; + if ($newurl ne $oldurl) { + $return_url=$newurl; + print $logfile 'URL: '.$tag.':'.$oldurl.' - '.$newurl."\n"; + } + if (($newurl !~ /^javascript:/i) && + ($newurl !~ /^mailto:/i) && + ($newurl !~ /^http:/i) && + ($newurl !~ /^\#/)) { + $$allow{&absoluteurl($newurl,$target)}=1; + } + return $return_url +} + +sub get_subscribed_hosts { + my ($target)=@_; + my @subscribed; + my $filename; + $target=~/(.*)\/([^\/]+)$/; + my $srcf=$2; + opendir(DIR,$1); + while ($filename=readdir(DIR)) { + if ($filename=~/$srcf\.(\w+)$/) { + my $subhost=$1; + if ($subhost ne 'meta' && $subhost ne 'subscription') { + push(@subscribed,$subhost); + } + } + } + closedir(DIR); + my $sh; + if ( $sh=Apache::File->new("$target.subscription") ) { + &Apache::lonnet::logthis("opened $target.subscription"); + while (my $subline=<$sh>) { + &Apache::lonnet::logthis("Trying $subline"); + if ($subline =~ /(^\w+):/) { push(@subscribed,$1); } else { + &Apache::lonnet::logthis("No Match for $subline"); + } + } + } else { + &Apache::lonnet::logthis("Un able to open $target.subscription"); + } + &Apache::lonnet::logthis("Got list of ".join(':',@subscribed)); + return @subscribed; +} + + +sub get_max_ids_indices { + my ($content)=@_; + my $maxindex=10; + my $maxid=10; + my $needsfixup=0; + + my $parser=HTML::LCParser->new($content); + my $token; + while ($token=$parser->get_token) { + if ($token->[0] eq 'S') { + my $counter; + if ($counter=$addid{$token->[1]}) { + if ($counter eq 'id') { + if (defined($token->[2]->{'id'})) { + $maxid=($token->[2]->{'id'}>$maxid)?$token->[2]->{'id'}:$maxid; + } else { + $needsfixup=1; + } + } else { + if (defined($token->[2]->{'index'})) { + $maxindex=($token->[2]->{'index'}>$maxindex)?$token->[2]->{'index'}:$maxindex; + } else { + $needsfixup=1; + } + } + } + } + } + return ($needsfixup,$maxid,$maxindex); +} + +#Arguably this should all be done as an lonnet::ssi instead +sub fix_ids_and_indices { + my ($logfile,$source,$target)=@_; + + my %allow; + my $content; + { + my $org=Apache::File->new($source); + $content=join('',<$org>); + } + + my ($needsfixup,$maxid,$maxindex)=&get_max_ids_indices(\$content); + + if ($needsfixup) { + print $logfile "Needs ID and/or index fixup\n". + "Max ID : $maxid (min 10)\n". + "Max Index: $maxindex (min 10)\n"; + } + my $outstring=''; + my @parser; + $parser[0]=HTML::LCParser->new(\$content); + $parser[-1]->xml_mode(1); + my $token; + while (@parser) { + while ($token=$parser[-1]->get_token) { + if ($token->[0] eq 'S') { + my $counter; + my $tag=$token->[1]; + my $lctag=lc($tag); + if ($lctag eq 'allow') { + $allow{$token->[2]->{'src'}}=1; + next; + } + my %parms=%{$token->[2]}; + $counter=$addid{$tag}; + if (!$counter) { $counter=$addid{$lctag}; } + if ($counter) { + if ($counter eq 'id') { + unless (defined($parms{'id'})) { + $maxid++; + $parms{'id'}=$maxid; + print $logfile 'ID: '.$tag.':'.$maxid."\n"; + } + } elsif ($counter eq 'index') { + unless (defined($parms{'index'})) { + $maxindex++; + $parms{'index'}=$maxindex; + print $logfile 'Index: '.$tag.':'.$maxindex."\n"; + } + } + } + foreach my $type ('src','href','background','bgimg') { + foreach my $key (keys(%parms)) { + print $logfile "for $type, and $key\n"; + if ($key =~ /^$type$/i) { + print $logfile "calling set_allow\n"; + $parms{$key}=&set_allow(\%allow,$logfile, + $target,$tag, + $parms{$key}); + } + } + } + # probably a image type

Dependencies

'; - my $allowstr="\n"; - map { + my $allowstr=''; + foreach (sort(keys(%allow))) { my $thisdep=$_; - $allowstr.=''."\n"; + if ($thisdep !~ /[^\s]/) { next; } + unless ($style eq 'rat') { + $allowstr.="\n".''; + } $scrout.='
'; unless ($thisdep=~/\*/) { $scrout.=''; @@ -377,9 +500,11 @@ sub publish { } } } - } keys %allow; - $outstring=~s/(\<\/[^\>]+\>\s*)$/$allowstr$1/s; - } + } + $outstring=~s/\n*(\<\/[^\>]+\>)\s*$/$allowstr\n$1\n/s; + + #Encode any High ASCII characters + $outstring=&HTML::Entities::encode($outstring,"\200-\377"); # ------------------------------------------------------------- Write modified { @@ -393,13 +518,6 @@ sub publish { } $content=$outstring; - if ($needsfixup) { - print $logfile "End of ID and/or index fixup\n". - "Max ID : $maxid (min 10)\n". - "Max Index: $maxindex (min 10)\n"; - } else { - print $logfile "Does not need ID and/or index fixup\n"; - } } # --------------------------------------------- Initial step done, now metadata @@ -410,7 +528,10 @@ sub publish { my %oldparmstores=(); - $scrout.='

Metadata Information

'; + + $scrout.='

Metadata Information ' . + Apache::loncommon::help_open_topic("Metadata_Description") + . '

'; # ------------------------------------------------ First, check out environment unless (-e $source.'.meta') { @@ -432,30 +553,30 @@ sub publish { my $currentpath='/home/'.$cuname.'/'; - map { + foreach (@urlparts) { $currentpath.=$_.'/'; $scrout.=&metaread($logfile,$currentpath.'default.meta'); - } @urlparts; + } # ------------------- Clear out parameters and stores (there should not be any) - map { + foreach (keys %metadatafields) { if (($_=~/^parameter/) || ($_=~/^stores/)) { delete $metadatafields{$_}; } - } keys %metadatafields; + } } else { # ---------------------- Read previous metafile, remember parameters and stores $scrout.=&metaread($logfile,$source.'.meta'); - map { + foreach (keys %metadatafields) { if (($_=~/^parameter/) || ($_=~/^stores/)) { $oldparmstores{$_}=1; delete $metadatafields{$_}; } - } keys %metadatafields; + } } @@ -464,7 +585,7 @@ sub publish { my $oldenv=$ENV{'request.uri'}; $ENV{'request.uri'}=$target; - $allmeta=Apache::lonxml::xmlparse('meta',$content); + $allmeta=Apache::lonxml::xmlparse(undef,'meta',$content); $ENV{'request.uri'}=$oldenv; &metaeval($allmeta); @@ -472,7 +593,7 @@ sub publish { # ---------------- Find and document discrepancies in the parameters and stores my $chparms=''; - map { + foreach (sort keys %metadatafields) { if (($_=~/^parameter/) || ($_=~/^stores/)) { unless ($_=~/\.\w+$/) { unless ($oldparmstores{$_}) { @@ -481,14 +602,14 @@ sub publish { } } } - } sort keys %metadatafields; + } if ($chparms) { $scrout.='

New parameters or stored values: '. $chparms; } - my $chparms=''; - map { + $chparms=''; + foreach (sort keys %oldparmstores) { if (($_=~/^parameter/) || ($_=~/^stores/)) { unless (($metadatafields{$_.'.name'}) || ($metadatafields{$_.'.package'}) || ($_=~/\.\w+$/)) { @@ -496,7 +617,7 @@ sub publish { $chparms.=$_.' '; } } - } sort keys %oldparmstores; + } if ($chparms) { $scrout.='

Obsolete parameters or stored values: '. $chparms; @@ -505,8 +626,8 @@ sub publish { # ------------------------------------------------------- Now have all metadata $scrout.= - '

'. - '

'. + ''. + '

'. &hiddenfield('phase','two'). &hiddenfield('filename',$ENV{'form.filename'}). &hiddenfield('allmeta',&Apache::lonnet::escape($allmeta)). @@ -517,8 +638,29 @@ sub publish { # --------------------------------------------------- Scan content for keywords - my $keywordout='

Keywords:
'; + my $keywords_help = Apache::loncommon::help_open_topic("Publishing_Keywords"); + my $keywordout=<<"END"; + +

Keywords: $keywords_help + + +
+END + $keywordout.='

'; my $colcount=0; + my %keywords=(); if (length($content)<500000) { my $textonly=$content; @@ -529,33 +671,34 @@ sub publish { $textonly=~s/[\$\&][a-z]\w*//g; $textonly=~s/[^a-z\s]//g; - my %keywords=(); - map { + foreach ($textonly=~m/(\w+)/g) { unless ($nokey{$_}) { $keywords{$_}=1; } - } ($textonly=~m/(\w+)/g); + } + } - map { + + foreach (split(/\W+/,$metadatafields{'keywords'})) { $keywords{$_}=1; - } split(/\W+/,$metadatafields{'keywords'}); + } - map { - $keywordout.='\n"; $colcount=0; } $colcount++; - } sort keys %keywords; - - } else { - $keywordout.=''; - } + } $keywordout.='
'; if ($colcount>10) { $keywordout.="
File too long for keyword analysis
'; @@ -574,7 +717,10 @@ sub publish { $scrout.=&hiddenfield('mime',$1); $scrout.=&selectbox('Language','language', - $metadatafields{'language'},%language); + $metadatafields{'language'}, + \&Apache::loncommon::languagedescription, + (&Apache::loncommon::languageids), + ); unless ($metadatafields{'creationdate'}) { $metadatafields{'creationdate'}=time; @@ -587,16 +733,25 @@ sub publish { $scrout.=&textfield('Publisher/Owner','owner', $metadatafields{'owner'}); # --------------------------------------------------- Correct copyright for rat - if ($style eq 'rat') { - if ($metadatafields{'copyright'} eq 'public') { - delete $metadatafields{'copyright'}; - } - delete $cprtag{'public'}; - } + if ($style eq 'rat') { + if ($metadatafields{'copyright'} eq 'public') { + delete $metadatafields{'copyright'}; + } + $scrout.=&selectbox('Copyright/Distribution','copyright', + $metadatafields{'copyright'}, + \&Apache::loncommon::copyrightdescription, + (grep !/^public$/,(&Apache::loncommon::copyrightids))); + } + else { $scrout.=&selectbox('Copyright/Distribution','copyright', - $metadatafields{'copyright'},%cprtag); + $metadatafields{'copyright'}, + \&Apache::loncommon::copyrightdescription, + (&Apache::loncommon::copyrightids)); + } + my $copyright_help = Apache::loncommon::help_open_topic("Publishing_Copyright"); + $scrout =~ s/DISTRIBUTION:/'DISTRIBUTION: ' . $copyright_help/ge; return $scrout. '

'; } @@ -608,7 +763,6 @@ sub phasetwo { my ($source,$target,$style,$distarget)=@_; my $logfile; my $scrout=''; - unless ($logfile=Apache::File->new('>>'.$source.'.log')) { return 'No write permission to user directory, FAIL'; @@ -635,11 +789,12 @@ sub phasetwo { $metadatafields{'dependencies'}=$ENV{'form.dependencies'}; my $allkeywords=$ENV{'form.addkey'}; - map { - if ($_=~/^form\.key\.(\w+)/) { - $allkeywords.=','.$1; + if (exists($ENV{'form.keywords'}) && (ref($ENV{'form.keywords'}))) { + my @Keywords = @{$ENV{'form.keywords'}}; + foreach (@Keywords) { + $allkeywords.=','.$_; } - } keys %ENV; + } $allkeywords=~s/\W+/\,/; $allkeywords=~s/^\,//; $metadatafields{'keywords'}=$allkeywords; @@ -650,44 +805,38 @@ sub phasetwo { unless ($mfh=Apache::File->new('>'.$source.'.meta')) { return 'Could not write metadata, FAIL'; - } - map { + } + foreach (sort keys %metadatafields) { unless ($_=~/\./) { my $unikey=$_; $unikey=~/^([A-Za-z]+)/; my $tag=$1; $tag=~tr/A-Z/a-z/; print $mfh "\n\<$tag"; - map { + foreach (split(/\,/,$metadatakeys{$unikey})) { my $value=$metadatafields{$unikey.'.'.$_}; $value=~s/\"/\'\'/g; print $mfh ' '.$_.'="'.$value.'"'; - } split(/\,/,$metadatakeys{$unikey}); - print $mfh '>'.$metadatafields{$unikey}.''; + } + print $mfh '>'. + &HTML::Entities::encode($metadatafields{$unikey}) + .''; } - } sort keys %metadatafields; + } $scrout.='

Wrote Metadata'; print $logfile "\nWrote metadata"; } # -------------------------------- Synchronize entry with SQL metadata database - my %perlvar; - open (CONFIG,"/etc/httpd/conf/access.conf") || die "Can't read access.conf"; - my $configline; - while ($configline=) { - if ($configline =~ /PerlSetVar/) { - my ($dummy,$varname,$varvalue)=split(/\s+/,$configline); - chomp($varvalue); - $perlvar{$varname}=$varvalue; - } - } - close(CONFIG); + my $warning; + + unless ($metadatafields{'copyright'} eq 'priv') { - my $warning; my $dbh; { unless ( - $dbh = DBI->connect("DBI:mysql:loncapa","www",$perlvar{'lonSqlAccess'},{ RaiseError =>0,PrintError=>0}) + $dbh = DBI->connect("DBI:mysql:loncapa","www", + $Apache::lonnet::perlvar{'lonSqlAccess'},{ RaiseError =>0,PrintError=>0}) ) { $warning='WARNING: Cannot connect to '. 'database!'; @@ -699,11 +848,12 @@ sub phasetwo { 'delete from metadata where url like binary'. '"'.$sqldatafields{'url'}.'"'); $sth->execute(); - map {my $field=$metadatafields{$_}; $field=~s/\"/\'\'/g; - $sqldatafields{$_}=$field;} - ('title','author','subject','keywords','notes','abstract', + foreach ('title','author','subject','keywords','notes','abstract', 'mime','language','creationdate','lastrevisiondate','owner', - 'copyright'); + 'copyright') { + my $field=$metadatafields{$_}; $field=~s/\"/\'\'/g; + $sqldatafields{$_}=$field; + } $sth=$dbh->prepare('insert into metadata values ('. '"'.delete($sqldatafields{'title'}).'"'.','. @@ -732,7 +882,11 @@ sub phasetwo { } } - +} else { + $scrout.='

Private Publication - did not synchronize database'; + print $logfile "\nPrivate: Did not synchronize data into ". + "SQL metadata database"; +} # ----------------------------------------------------------- Copy old versions if (-e $target) { @@ -827,56 +981,26 @@ if (-e $target) { # --------------------------------------------------- Send update notifications -{ - - my $filename; - - $target=~/(.*)\/([^\/]+)$/; - my $srcf=$2; - opendir(DIR,$1); - while ($filename=readdir(DIR)) { - if ($filename=~/$srcf\.(\w+)$/) { - my $subhost=$1; - if ($subhost ne 'meta') { - $scrout.='

Notifying host '.$subhost.':'; - print $logfile "\nNotifying host '.$subhost.':'"; - my $reply=&Apache::lonnet::critical('update:'.$target,$subhost); - $scrout.=$reply; - print $logfile $reply; - } - } + my @subscribed=&get_subscribed_hosts($target); + foreach my $subhost (@subscribed) { + $scrout.='

Notifying host '.$subhost.':'; + print $logfile "\nNotifying host ".$subhost.':'; + my $reply=&Apache::lonnet::critical('update:'.$target,$subhost); + $scrout.=$reply; + print $logfile $reply; } - closedir(DIR); - -} # ---------------------------------------- Send update notifications, meta only -{ - - my $filename; - - $target=~/(.*)\/([^\/]+)$/; - my $srcf=$2.'.meta'; - opendir(DIR,$1); - while ($filename=readdir(DIR)) { - if ($filename=~/$srcf\.(\w+)$/) { - my $subhost=$1; - if ($subhost ne 'meta') { - $scrout.= - '

Notifying host for metadata only '.$subhost.':'; - print $logfile - "\nNotifying host for metadata only '.$subhost.':'"; - my $reply=&Apache::lonnet::critical( - 'update:'.$target.'.meta',$subhost); - $scrout.=$reply; - print $logfile $reply; - } - } + my @subscribedmeta=&get_subscribed_hosts("$target.meta"); + foreach my $subhost (@subscribedmeta) { + $scrout.='

Notifying host for metadata only '.$subhost.':'; + print $logfile "\nNotifying host for metadata only ".$subhost.':'; + my $reply=&Apache::lonnet::critical('update:'.$target.'.meta', + $subhost); + $scrout.=$reply; + print $logfile $reply; } - closedir(DIR); - -} # ------------------------------------------------ Provide link to new resource @@ -891,7 +1015,7 @@ if (-e $target) { return $warning.$scrout. - '

View Target'. + '
View Published Version'. '

Back to Source'. '

Back to Source Directory'; @@ -911,17 +1035,8 @@ sub handler { # Get query string for limited number of parameters - map { - my ($name, $value) = split(/=/,$_); - $value =~ tr/+/ /; - $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; - if ($name eq 'filename') { - unless ($ENV{'form.'.$name}) { - $ENV{'form.'.$name}=$value; - } - } - } (split(/&/,$ENV{'QUERY_STRING'})); - + &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, + ['filename']); # -------------------------------------------------------------- Check filename @@ -995,31 +1110,11 @@ unless ($ENV{'form.phase'} eq 'two') { { my $fh=Apache::File->new($r->dir_config('lonIncludes').'/un_keyword.tab'); - map { + while (<$fh>) { my $word=$_; chomp($word); $nokey{$word}=1; - } <$fh>; - } - - %language=(); - - { - my $fh=Apache::File->new($r->dir_config('lonTabDir').'/language.tab'); - map { - $_=~/(\w+)\s+([\w\s\-]+)/; - $language{$1}=$2; - } <$fh>; - } - - %cprtag=(); - - { - my $fh=Apache::File->new($r->dir_config('lonIncludes').'/copyright.tab'); - map { - $_=~/(\w+)\s+([\w\s\-]+)/; - $cprtag{$1}=$2; - } <$fh>; + } } } @@ -1038,7 +1133,7 @@ unless ($ENV{'form.phase'} eq 'two') { { $thisfn=~/\.(\w+)$/; my $thistype=$1; - my $thisembstyle=&Apache::lonnet::fileembstyle($thistype); + my $thisembstyle=&Apache::loncommon::fileembstyle($thistype); my $thistarget=$thisfn; @@ -1052,7 +1147,7 @@ unless ($ENV{'form.phase'} eq 'two') { $thisdisfn=~s/^\/home\/$cuname\/public_html\///; $r->print('

Publishing '. - &Apache::lonnet::filedescription($thistype).' '. + &Apache::loncommon::filedescription($thistype).' '. $thisdisfn.'

Target: '.$thisdistarget.'

'); if (($cuname ne $ENV{'user.name'}) || ($cudom ne $ENV{'user.domain'})) { @@ -1060,7 +1155,7 @@ unless ($ENV{'form.phase'} eq 'two') { ''); } - if (&Apache::lonnet::fileembstyle($thistype) eq 'ssi') { + if (&Apache::loncommon::fileembstyle($thistype) eq 'ssi') { $r->print('
Diffs with Current Version

'); @@ -1085,9 +1180,107 @@ unless ($ENV{'form.phase'} eq 'two') { 1; __END__ +=head1 NAME + +Apache::lonpublisher - Publication Handler + +=head1 SYNOPSIS + +Invoked by /etc/httpd/conf/srm.conf: + + + PerlAccessHandler Apache::lonacc + SetHandler perl-script + PerlHandler Apache::lonpublisher + ErrorDocument 403 /adm/login + ErrorDocument 404 /adm/notfound.html + ErrorDocument 406 /adm/unauthorized.html + ErrorDocument 500 /adm/errorhandler + + +=head1 INTRODUCTION + +This module publishes a file. This involves gathering metadata, +versioning the file, copying file from construction space to +publication space, and copying metadata from construction space +to publication space. + +This is part of the LearningOnline Network with CAPA project +described at http://www.lon-capa.org. + +=head1 HANDLER SUBROUTINE + +This routine is called by Apache and mod_perl. + +=over 4 + +=item * + +Get query string for limited number of parameters + +=item * + +Check filename + +=item * + +File is there and owned, init lookup tables + +=item * + +Start page output + +=item * + +Individual file + +=item * + +publish from $thisfn to $thistarget with $thisembstyle + +=back + +=head1 OTHER SUBROUTINES + +=over 4 + +=item * + +metaeval() : Evaluate string with metadata + +=item * + +metaread() : Read a metadata file + +=item * + +sqltime() : convert 'time' format into a datetime sql format + +=item * + +textfield() : form field + +=item * + +hiddenfield() : form field + +=item * + +selectbox() : form field + +=item * + +urlfixup() : fixup URL (Publication Step One) +=item * +publish() : publish (Publication Step One) +=item * +phasetwo() : render second interface showing status of publication steps +(Publication Step Two) +=back +=cut