# The LearningOnline Network with CAPA
# Publication Handler
#
# (TeX Content Handler
#
# 05/29/00,05/30,10/11 Gerd Kortemeyer)
#
# 11/28,11/29,11/30,12/01,12/02 Gerd Kortemeyer
package Apache::lonpublisher;
use strict;
use Apache::File;
use Apache::Constants qw(:common :http :methods);
use HTML::TokeParser;
use Apache::lonxml;
use Apache::structuretags;
use Apache::response;
my %addid;
my %nokey;
my %language;
my %cprtag;
my %metadatafields;
my %metadatakeys;
sub metaeval {
my $metastring=shift;
my $parser=HTML::TokeParser->new(\$metastring);
my $token;
while ($token=$parser->get_token) {
if ($token->[0] eq 'S') {
my $entry=$token->[1];
my $unikey=$entry;
if (defined($token->[2]->{'part'})) {
$unikey.='_'.$token->[2]->{'part'};
}
if (defined($token->[2]->{'name'})) {
$unikey.='_'.$token->[2]->{'name'};
}
map {
$metadatafields{$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/) {
$metadatafields{$unikey}.=', '.$newentry;
}
} else {
$metadatafields{$unikey}=$parser->get_text('/'.$entry);
}
}
}
}
sub metaread {
my ($logfile,$fn)=@_;
unless (-e $fn) {
print $logfile 'No file '.$fn."\n";
return '<br><b>No file:</b> <tt>'.$fn.'</tt>';
}
print $logfile 'Processing '.$fn."\n";
my $metastring;
{
my $metafh=Apache::File->new($fn);
$metastring=join('',<$metafh>);
}
&metaeval($metastring);
return '<br><b>Processed file:</b> <tt>'.$fn.'</tt>';
}
sub textfield {
my ($title,$name,$value)=@_;
return "\n<p><b>$title:</b><br>".
'<input type=text size=80 value="'.$value.'">';
}
sub selectbox {
my ($title,$name,$value,%options)=@_;
my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
map {
$selout.='<option value="'.$_.'"';
if ($_ eq $value) { $selout.=' selected'; }
$selout.='>'.$options{$_}.'</option>';
} sort keys %options;
return $selout.'</select>';
}
sub publish {
my ($source,$target,$style)=@_;
my $logfile;
my $scrout='';
unless ($logfile=Apache::File->new('>>'.$source.'.log')) {
return
'<font color=red>No write permission to user directory, FAIL</font>';
}
print $logfile
"\n\n================== Publish ".localtime()." =================\n";
if (($style eq 'ssi') || ($style eq 'rat')) {
# ------------------------------------------------------- This needs processing
# ----------------------------------------------------------------- Backup Copy
my $copyfile=$source.'.save';
{
my $org=Apache::File->new($source);
my $cop=Apache::File->new('>'.$copyfile);
while (my $line=<$org>) { print $cop $line; }
}
if (-e $copyfile) {
print $logfile "Copied original file to ".$copyfile."\n";
} else {
print $logfile "Unable to write backup ".$copyfile."\n";
return "<font color=red>Failed to write backup copy, FAIL</font>";
}
# ------------------------------------------------------------- IDs and indices
my $maxindex=10;
my $maxid=10;
my $content='';
my $needsfixup=0;
{
my $org=Apache::File->new($source);
$content=join('',<$org>);
}
{
my $parser=HTML::TokeParser->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 {
$needsfixup=1;
}
}
}
}
}
}
if ($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=HTML::TokeParser->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'})) {
$outstring.=$token->[4];
} else {
$maxid++;
my $thisid=' id="'.$maxid.'"';
my $fixup=$token->[4];
$fixup=~s/(\<\w+)/$1$thisid/;
$outstring.=$fixup;
print $logfile 'ID: '.$fixup."\n";
}
} else {
if (defined($token->[2]->{'index'})) {
$outstring.=$token->[4];
} else {
$maxindex++;
my $thisindex=' index="'.$maxindex.'"';
my $fixup=$token->[4];
$fixup=~s/(\<\w+)/$1$thisindex/;
$outstring.=$fixup;
print $logfile 'Index: '.$fixup."\n";
}
}
} else {
$outstring.=$token->[4];
}
} elsif ($token->[0] eq 'E') {
$outstring.=$token->[2];
} else {
$outstring.=$token->[1];
}
}
{
my $org;
unless ($org=Apache::File->new('>'.$source)) {
print $logfile "No write permit to $source\n";
return
"<font color=red>No write permission to $source, FAIL</font>";
}
print $org $outstring;
}
$content=$outstring;
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
# ---------------------------------------- Storage for metadata keys and fields
%metadatafields=();
%metadatakeys=();
my %oldparmstores=();
# ------------------------------------------------ First, check out environment
unless (-e $source.'.meta') {
$metadatafields{'author'}=$ENV{'environment.firstname'}.' '.
$ENV{'environment.middlename'}.' '.
$ENV{'environment.lastname'}.' '.
$ENV{'environment.generation'};
$metadatafields{'author'}=~s/\s+/ /g;
$metadatafields{'author'}=~s/\s+$//;
$metadatafields{'owner'}=$ENV{'user.name'}.'@'.$ENV{'user.domain'};
# ------------------------------------------------ Check out directory hierachy
my $thisdisfn=$source;
$thisdisfn=~s/^\/home\/$ENV{'user.name'}\///;
my @urlparts=split(/\//,$thisdisfn);
$#urlparts--;
my $currentpath='/home/'.$ENV{'user.name'}.'/';
map {
$currentpath.=$_.'/';
$scrout.=&metaread($logfile,$currentpath.'default.meta');
} @urlparts;
# ------------------- Clear out parameters and stores (there should not be any)
map {
if (($_=~/^parameter/) || ($_=~/^stores/)) {
delete $metadatafields{$_};
}
} keys %metadatafields;
} else {
# ---------------------- Read previous metafile, remember parameters and stores
$scrout.=&metaread($logfile,$source.'.meta');
map {
if (($_=~/^parameter/) || ($_=~/^stores/)) {
$oldparmstores{$_}=1;
delete $metadatafields{$_};
}
} keys %metadatafields;
}
# -------------------------------------------------- Parse content for metadata
my $allmeta=Apache::lonxml::xmlparse('meta',$content);
&metaeval($allmeta);
# ---------------- Find and document discrepancies in the parameters and stores
my $chparms='';
map {
if (($_=~/^parameter/) || ($_=~/^stores/)) {
unless ($_=~/\.\w+$/) {
unless ($oldparmstores{$_}) {
print $logfile 'New: '.$_."\n";
$chparms.=$_.' ';
}
}
}
} sort keys %metadatafields;
if ($chparms) {
$scrout.='<p><b>New parameters or stored values:</b> '.
$chparms;
}
my $chparms='';
map {
if (($_=~/^parameter/) || ($_=~/^stores/)) {
unless (($metadatafields{$_}) || ($_=~/\.\w+$/)) {
print $logfile 'Obsolete: '.$_."\n";
$chparms.=$_.' ';
}
}
} sort keys %oldparmstores;
if ($chparms) {
$scrout.='<p><b>Obsolete parameters or stored values:</b> '.
$chparms;
}
# ------------------------------------------------------- Now have all metadata
$scrout.=
'<form action="/adm/publish" method="post">'.
'<input type="hidden" name="phase" value="two">'.
'<input type="hidden" name="filename" value="'.$ENV{'form.filename'}.'">'.
&textfield('Title','title',$metadatafields{'title'}).
&textfield('Author(s)','author',$metadatafields{'author'}).
&textfield('Subject','subject',$metadatafields{'subject'});
# --------------------------------------------------- Scan content for keywords
my $keywordout='<p><b>Keywords:</b><br><table border=2><tr>';
my $colcount=0;
{
my $textonly=$content;
$textonly=~s/\<script[^\<]+\<\/script\>//g;
$textonly=~s/\<m\>[^\<]+\<\/m\>//g;
$textonly=~s/\<[^\>]*\>//g;
$textonly=~tr/A-Z/a-z/;
$textonly=~s/[\$\&][a-z]\w*//g;
$textonly=~s/[^a-z\s]//g;
my %keywords=();
map {
unless ($nokey{$_}) {
$keywords{$_}=1;
}
} ($textonly=~m/(\w+)/g);
map {
$keywordout.='<td><input type=checkbox name="'.$_.'"';
if ($metadatafields{'keywords'}=~/$_/) {
$keywordout.=' checked';
}
$keywordout.='>'.$_.'</td>';
if ($colcount>10) {
$keywordout.="</tr><tr>\n";
$colcount=0;
}
$colcount++;
} sort keys %keywords;
$keywordout.='</tr></table>';
}
$scrout.=$keywordout;
$scrout.=&textfield('Notes','notes',$metadatafields{'notes'});
$scrout.=
'<p><b>Abstract:</b><br><textarea cols=80 rows=5 name=abstract>'.
$metadatafields{'abstract'}.'</textarea>';
$scrout.=&selectbox('Language','language',
$metadatafields{'language'},%language);
$scrout.=&textfield('Publisher/Owner','owner',
$metadatafields{'owner'});
$scrout.=&selectbox('Copyright/Distribution','copyright',
$metadatafields{'copyright'},%cprtag);
}
return $scrout.
'<p><input type="submit" value="Finalize Publication"></form>';
}
# ================================================================ Main Handler
sub handler {
my $r=shift;
if ($r->header_only) {
$r->content_type('text/html');
$r->send_http_header;
return OK;
}
# -------------------------------------------------------------- Check filename
my $fn=$ENV{'form.filename'};
unless ($fn) {
$r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
' trying to publish empty filename', $r->filename);
return HTTP_NOT_FOUND;
}
unless ($ENV{'user.home'} eq $r->dir_config('lonHostID')) {
$r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
' trying to publish file '.$ENV{'form.filename'}.
' ('.$fn.') - not homeserver ('.$ENV{'user.home'}.')',
$r->filename);
return HTTP_NOT_ACCEPTABLE;
}
$fn=~s/^http\:\/\/[^\/]+\/\~(\w+)/\/home\/$1\/public_html/;
my $targetdir='';
my $docroot=$r->dir_config('lonDocRoot');
if ($1 ne $ENV{'user.name'}) {
$r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
' trying to publish unowned file '.$ENV{'form.filename'}.
' ('.$fn.')',
$r->filename);
return HTTP_NOT_ACCEPTABLE;
} else {
$targetdir=$docroot.'/res/'.$ENV{'user.domain'};
}
unless (-e $fn) {
$r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
' trying to publish non-existing file '.$ENV{'form.filename'}.
' ('.$fn.')',
$r->filename);
return HTTP_NOT_FOUND;
}
# --------------------------------- File is there and owned, init lookup tables
%addid=();
{
my $fh=Apache::File->new($r->dir_config('lonTabDir').'/addid.tab');
while (<$fh>=~/(\w+)\s+(\w+)/) {
$addid{$1}=$2;
}
}
%nokey=();
{
my $fh=Apache::File->new($r->dir_config('lonIncludes').'/un_keyword.tab');
map {
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>;
}
# ----------------------------------------------------------- Start page output
$r->content_type('text/html');
$r->send_http_header;
$r->print('<html><head><title>LON-CAPA Publishing</title></head>');
$r->print('<body bgcolor="#FFFFFF">');
my $thisfn=$fn;
# ------------------------------------------------------------- Individual file
{
$thisfn=~/\.(\w+)$/;
my $thistype=$1;
my $thisembstyle=&Apache::lonnet::fileembstyle($thistype);
my $thistarget=$thisfn;
$thistarget=~s/^\/home/$targetdir/;
$thistarget=~s/\/public\_html//;
my $thisdistarget=$thistarget;
$thisdistarget=~s/^$docroot//;
my $thisdisfn=$thisfn;
$thisdisfn=~s/^\/home\/$ENV{'user.name'}\/public_html\///;
$r->print('<h2>Publishing '.
&Apache::lonnet::filedescription($thistype).' <tt>'.
$thisdisfn.'</tt></h2><b>Target:</b> <tt>'.$thisdistarget.'</tt><p>');
# ------------ We are publishing from $thisfn to $thistarget with $thisembstyle
$r->print('<hr>'.&publish($thisfn,$thistarget,$thisembstyle));
}
$r->print('</body></html>');
return OK;
}
1;
__END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>