--- loncom/interface/printout.pl 2002/08/06 16:11:05 1.14 +++ loncom/interface/printout.pl 2004/12/20 21:15:20 1.71 @@ -1,106 +1,467 @@ #!/usr/bin/perl +# CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc. +# +# $Id: printout.pl,v 1.71 2004/12/20 21:15:20 albertel Exp $ +# +# Copyright Michigan State University Board of Trustees +# +# This file is part of the LearningOnline Network with CAPA (LON-CAPA). +# +# LON-CAPA is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# LON-CAPA is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with LON-CAPA; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# +# /home/httpd/html/adm/gpl.txt +# +# http://www.lon-capa.org/ +# + +use lib '/home/httpd/lib/perl'; +use LONCAPA::loncgi(); +use File::Path; use IO::File; use Image::Magick; - print "Content-type: text/html\n\n"; - print "\n"; - my ($texfile,$laystyle) = split(/&/,$ENV{'QUERY_STRING'}); +use Apache::lonhtmlcommon; +use Apache::lonnet(); +use Apache::loncommon; +use Apache::lonlocal; + +use strict; +$|=1; +my %origENV=%ENV; +if (! &LONCAPA::loncgi::check_cookie_and_load_env()) { + print < +Bad Cookie + +Your cookie information is incorrect. + + +END + return; +} + &Apache::lonlocal::get_language_handle(); + &Apache::loncommon::content_type(undef,'text/html'); + my $bodytag=&Apache::loncommon::bodytag('Creating PDF','',''); + print $bodytag; + + my $identifier = $ENV{'QUERY_STRING'}; + my $texfile = $ENV{'cgi.'.$identifier.'.file'}; + my $laystyle = $ENV{'cgi.'.$identifier.'.layout'}; + my $numberofcolumns = $ENV{'cgi.'.$identifier.'.numcol'}; + my $paper = $ENV{'cgi.'.$identifier.'.paper'}; + my $selectionmade = $ENV{'cgi.'.$identifier.'.selection'}; + my $tableofcontents = $ENV{'cgi.'.$identifier.'tableofcontents'}; + my $tableofindex = $ENV{'cgi.'.$identifier.'tableofindex'}; + my $advans_role = $ENV{'cgi.'.$identifier.'role'}; + my $number_of_files = $ENV{'cgi.'.$identifier.'numberoffiles'}+1; + my $student_names = $ENV{'cgi.'.$identifier.'studentnames'}; + my $backref = &Apache::lonnet::unescape($ENV{'cgi.'.$identifier.'backref'}); + + + my $adv = $ENV{'request.role.adv'}; + + my @names_pack=(); + if ($student_names=~/_END_/) { + @names_pack=split(/_ENDPERSON_/,$student_names); + } + #got what we needed reset ENV in case it is to big for system + %ENV=%origENV; + my $figfile = $texfile; $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/; my $duefile = $texfile; $duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/; #do we have figures? if (-e $figfile) { - my $temporary_file=IO::File->new($figfile) || die "Couldn't open file for reading: $!\n"; + my %done_conversion; + my $temporary_file=IO::File->new($figfile) || die "Couldn't open fig file $figfile for reading: $!\n"; my @content_of_file = <$temporary_file>; close $temporary_file; my $noteps; - foreach $not_eps (@content_of_file) { + my %prog_state; + if ($adv) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Coverting Images to EPS','Picture Conversion Status',$#content_of_file,'inline','80'); } + foreach my $not_eps (@content_of_file) { + chomp($not_eps); if ($not_eps ne '') { + my $status_statement='EPS picture for '.$not_eps; + $not_eps=~s|\/\.\/|\/|g; my $eps_f = $not_eps; $eps_f =~ s/\.[^.]*$/\.eps/i; - $_ = $eps_f; - m/\/([^\/]+)$/; - $eps_f = '/home/httpd/prtspool/'.$1; + if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) { + $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/; + $eps_f = '/home/httpd/prtspool/'.$eps_f; + } elsif ($eps_f=~/$Apache::lonnet::perlvar{'lonDocRoot'}\/res\//) { + $eps_f=~m/$Apache::lonnet::perlvar{'lonDocRoot'}\/res\/(.+)/; + $eps_f = '/home/httpd/prtspool/'.$1; + } elsif ($eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\//) { + $eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\/([^\/]+)\/\w\/\w\/\w\/(.+)/; + $eps_f = '/home/httpd/prtspool/'.$1.'/'.$2; + } + my $path=$eps_f; + $path=~s/\/([^\/]+)\.eps$//; + File::Path::mkpath($path,0,0777); my $image = Image::Magick->new; $not_eps =~ s/^\s+//; $not_eps =~ s/\s+$//; - $status = $image->Read($not_eps); + if ( exists($done_conversion{$not_eps})) { + next; + } + if ($adv) { + my $prettyname=$not_eps; + $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|; + $prettyname=~s|$Apache::lonnet::perlvar{'lonDocRoot'}/|/|; + &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Converting to EPS '.$prettyname); } + $done_conversion{$not_eps}=1; + my $status = $image->Read($not_eps); if ($status) {print " $status ";} $image->Set(page => '+100+200'); $status = $image->Write($eps_f); if ($status) {print " $status ";} + #check is eps exist in prtspool + if(not -e $eps_f) { + for (my $i=0;$i<10000;$i++) { + if (-e $eps_f.'.'.$i) { + rename $eps_f.'.'.$i, $eps_f; + last; + } + } + } } } - unlink $figfile; + if ($adv) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); } + unlink($figfile); } - #print "$texfile\n"; #name of the tex file for debugging only - $texfile =~ m/^(.*)\/([^\/]+)$/; - my $name_file = $2; - my $path_file = $1.'/'; - chdir $path_file; - system("latex $name_file 1>/dev/null 2>/dev/null"); - $name_file =~ s/\.tex/\.dvi/; - if (-e $name_file) { - #if dvi file exist = LaTeX successfully parsed tex file - print "

OUTPUT is in the PDF FILE (see link below)

\n"; - my $new_name_file = $name_file; - $new_name_file =~ s/\.dvi/\.ps/; - my $comma = "dvips -o $new_name_file"; - system("$comma $name_file"); - $_ = $new_name_file; - m/^(.*)\./; - my $tempo_file = $1.'temporar.ps'; - my $name_file = $1.'.pdf'; - if ($laystyle eq 'album') { - $comma = "psnup -2 -s1.0 $new_name_file"; - system("$comma $tempo_file"); - system("ps2pdf $tempo_file $name_file"); - } elsif ($laystyle eq 'book') { - system("ps2pdf $new_name_file $name_file"); - } - my $texlog = $texfile; - my $texaux = $texfile; - my $texdvi = $texfile; - my $texps = $texfile; - $texlog =~ s/\.tex/\.log/; - $texaux =~ s/\.tex/\.aux/; - $texdvi =~ s/\.tex/\.dvi/; - $texps =~ s/\.tex/\.ps/; - my @garb = ($texlog,$texaux,$texdvi,$texps); - unlink @garb; - unlink $duefile; - print "Your PDF document"; - print "\n"; + #print "$texfile\n"; #name of the tex file for debugging only + my @texfile=($texfile); + if ($number_of_files>1) { + @texfile=(); + for (my $i=1;$i<=$number_of_files;$i++) { + my $new_texfile=$texfile; + $new_texfile=~s/\.tex/_$i\.tex/; + push @texfile,$new_texfile; + } + } + +my $ind=-1; +my %prog_state; +print "Return to last resource.

"; +if ($adv) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status','Class Print Status',$number_of_files,'inline','80'); } +print "
"; +foreach $texfile (@texfile) { + my $status_statement=''; + my $link_text='download PDF'; + $ind++; + my @stud_info=split(/_END_/,$names_pack[$ind]); + my @tempo_array=split(/:/,$stud_info[0]); + my $name; + if ($tempo_array[3]) { + $name=$tempo_array[3]; } else { - print "

LaTeX could not successfully parse your tex file.

"; - print "

Probably, you have errors in it.

"; - my $logfilename = $texfile; - $logfilename =~ s/\.tex$/\.log/; - if (-e $logfilename) { - #if dvi file does not exist = LaTeX failed to parse tex file - print "To give you a clue we show you a few lines from the LaTeX log file
"; - my $temporary_file=IO::File->new($logfilename) || die "Couldn't open file for reading: $!\n"; - my @content_of_file = <$temporary_file>; - close $temporary_file; + $name=$tempo_array[0].'@'.$tempo_array[1]; + } + $link_text=''.$name.''; + $status_statement.=$name; + if ($#stud_info>0) { + @tempo_array=split(/:/,$stud_info[-1]); + if ($tempo_array[3]) { + $name=$tempo_array[3]; + } else { + $name=$tempo_array[0].'@'.$tempo_array[1]; + } + $link_text.=' - '.$name.''; + $status_statement.=' - '.$name; + } + if ($adv) { &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Creating PDF for '.$status_statement); } + if (-e $texfile) { + $texfile =~ m/^(.*)\/([^\/]+)$/; + my $name_file = $2; + my $path_file = $1.'/'; + chdir $path_file; + my $dvi_file= $name_file; $dvi_file =~ s/\.tex/\.dvi/; + &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null", + "for $status_statement now LaTeXing file", + \%prog_state,$dvi_file); + if ($tableofcontents eq 'yes') { + &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null", + "for $status_statement now LaTeXing file for table of contents", + \%prog_state,$dvi_file); + } #to create table of contents + my $idxname=$name_file; + $idxname=~s/\.tex$/\.idx/; + if ($tableofindex eq 'yes') { + &busy_wait_command("makeindex $idxname", + "making index file", + \%prog_state,$idxname); + &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null", + "for $status_statement now LaTeXing file for index section", + \%prog_state,$dvi_file); + } #to create index + #Do we have a latex error in the log file? + my $logfilename = $texfile; $logfilename =~ s/\.tex$/\.log/; + my $temporary_file=IO::File->new($logfilename) || die "Couldn't open log file $logfilename for reading: $!\n"; + my @content_of_file = <$temporary_file>; + close $temporary_file; + my $body_log_file = join(' ',@content_of_file); + $logfilename =~ s/\.log$/\.html/; + $temporary_file = IO::File->new('>'.$logfilename); + print $temporary_file 'LOGFILE
'.$body_log_file.'
'."\n"; + if ($body_log_file=~m/!\s+Emergency stop/) { + #LaTeX failed to parse tex file + print "

LaTeX could not successfully parse your tex file.

"; + print "It probably has errors in it.
"; + my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART'; + my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND'; + if ($whereitbegins!=-1 and $whereitends!=-1) { + print "With very high probability this error occured in ".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)."

"; + } + print "Here are the error messages in the LaTeX log file

";
 	  my $sygnal = 0;
 	  for (my $i=0;$i<=$#content_of_file;$i++) {
-	      if ($content_of_file[$i]=~m/^!/) {
+	      if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {
 		  $sygnal = 1;
 	      } 
 	      if ($content_of_file[$i]=~m/Here is how much of/) {
 		  $sygnal = 0;
 	      } 
 	      if ($sygnal) {
-		  print "$content_of_file[$i]
";
-	      }
+		  print "$content_of_file[$i]";
+	      }  
+	  }
+	  print "
\n"; + if ($advans_role) { + print "The link to "; + $logfilename=~s/\/home\/httpd//; + print "Your log file "; + print "\n"; + #link tooriginal LaTeX file (included according Michael Hamlin desire) + my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n"; + my @tex_content_of_file = <$tex_temporary_file>; + close $tex_temporary_file; + my $body_tex_file = join(' ',@tex_content_of_file); + $texfile =~ s/\.tex$/aaaaa\.html/; + $tex_temporary_file = IO::File->new('>'.$texfile); + print $tex_temporary_file 'LOGFILE
'.$body_tex_file.'
'."\n"; + print "

"; + print "The link to "; + $texfile=~s/\/home\/httpd//; + print "Your original LaTeX file "; + print "\n"; + } - } -# my $content_file_string = join(' ',@content_of_file); - -# print "$content_file_string\n"; - } + } elsif ($body_log_file=~m//) { + my $whereitbegins = index $body_log_file,''; + print "You are running LaTeX in batch mode."; + while ($whereitbegins != -1) { + my $tempobegin=$whereitbegins; + $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins; + my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$whereitbegins; + print "
It has found an error in".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)."
and corrected it.\n"; + print "Usually this correction is valid but you probably need to check the indicated resource one more time and implement neccessary corrections by yourself.\n"; + $whereitbegins = index $body_log_file,'',$tempobegin+10; + } + $name_file =~ s/\.tex/\.dvi/; + my $new_name_file = $name_file; + $new_name_file =~ s/\.dvi/\.ps/; + my $papera=$paper; + if ($papera eq 'letter') {$papera='';} + if ($papera ne '') {$papera='-t'.$papera;} + my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file"; + &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null", + "for $status_statement now Converting to PS", + \%prog_state,$new_name_file); + if (-e $new_name_file) { + print "

PDF output file (see link below)

\n"; + $new_name_file =~ m/^(.*)\./; + my $ps_file = my $tempo_file = $1.'temporar.ps'; + my $pdf_file = $1.'.pdf'; + if ($laystyle eq 'album' and $numberofcolumns eq '2') { + $comma = "psnup -2 -s1.0 $new_name_file"; + &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null", + "for $status_statement now Modifying PS layout", + \%prog_state,$tempo_file); + } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') { + my $papera=$paper; + if ($papera eq 'letter') {$papera='';} + if ($papera ne '') {$papera='-p'.$papera;} + $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"'; + &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null", + "for $status_statement now Modifying PS layout", + \%prog_state,$tempo_file); + + } else { + $ps_file=$new_name_file; + } + &busy_wait_command("ps2pdf $ps_file $pdf_file 1>/dev/null 2>/dev/null", + "for $status_statement now Converting PS to PDF", + \%prog_state, $pdf_file); + + my $texlog = $texfile; + my $texaux = $texfile; + my $texdvi = $texfile; + my $texps = $texfile; + $texlog =~ s/\.tex/\.log/; + $texaux =~ s/\.tex/\.aux/; + $texdvi =~ s/\.tex/\.dvi/; + $texps =~ s/\.tex/\.ps/; + my @garb = ($texaux,$texdvi,$texps); +# unlink @garb; + unlink $duefile; + print "Your PDF document"; + if ($advans_role) { + print "

"; + print "The link to "; + $logfilename=~s/\/home\/httpd//; + print "Your log file "; + print "\n"; + #link tooriginal LaTeX file (included according Michael Hamlin desire) + my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n"; + my @tex_content_of_file = <$tex_temporary_file>; + close $tex_temporary_file; + my $body_tex_file = join(' ',@tex_content_of_file); + $texfile =~ s/\.tex$/aaaaa\.html/; + $tex_temporary_file = IO::File->new('>'.$texfile); + print $tex_temporary_file 'LOGFILE
'.$body_tex_file.'
'."\n"; + print "

"; + print "The link to "; + $texfile=~s/\/home\/httpd//; + print "Your original LaTeX file "; + print "\n"; + } + } + } else { + #LaTeX successfully parsed tex file + $name_file =~ s/\.tex/\.dvi/; + my $new_name_file = $name_file; + $new_name_file =~ s/\.dvi/\.ps/; + my $papera=$paper; + if ($papera eq 'letter') {$papera='';} + if ($papera ne '') {$papera='-t'.$papera;} + my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file"; + &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null", + "for $status_statement now Converting to PS", + \%prog_state,$new_name_file); + if (-e $new_name_file) { + print "
"; + $new_name_file =~ m/^(.*)\./; + my $ps_file = my $tempo_file = $1.'temporar.ps'; + my $pdf_file = $1.'.pdf'; + if ($laystyle eq 'album' and $numberofcolumns eq '2') { + $comma = "psnup -2 -s1.0 $new_name_file"; + &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null", + "for $status_statement now Modifying PS layout", + \%prog_state,$tempo_file); + } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') { + $papera=~s/t/p/; + $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"'; + &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null", + "for $status_statement now Modifying PS layout", + \%prog_state,$tempo_file); + } else { + $ps_file=$new_name_file; + } + my $addtoPSfile={'legal'=>'<< /PageSize [612 1008] >> setpagedevice', + 'tabloid'=>'<< /PageSize [792 1224] >> setpagedevice', + 'executive'=>,'<< /PageSize [540 720] >> setpagedevice', + 'a2'=>'<< /PageSize [1195.02 1690.09] >> setpagedevice', + 'a3'=>'<< /PageSize [842 1195.02] >> setpagedevice', + 'a4'=>'<< /PageSize [595.2 842] >> setpagedevice', + 'a5'=>'<< /PageSize [421.1 595.2] >> setpagedevice', + 'a6'=>'<< /PageSize [298.75 421.1] >> setpagedevice', + }; + if ($paper ne 'letter') { + open(FFH,'<',$ps_file) || die "Couldn't open ps file $ps_file for reading: $!\n"; + my $new_ps_file='new'.$ps_file; + open(FFHS,'>',$new_ps_file) || die "Couldn't open new ps file $new_ps_file for reading: $!\n"; + print FFHS $addtoPSfile->{$paper}."\n"; + while () { + print FFHS $_; + } + close(FFH); + close(FFHS); + $ps_file=$new_ps_file; + } + &busy_wait_command("ps2pdf $ps_file $pdf_file 1>/dev/null 2>/dev/null", + "for $status_statement now Converting PS to PDF", + \%prog_state,$pdf_file); + + my $texlog = $texfile; + my $texaux = $texfile; + my $texdvi = $texfile; + my $texps = $texfile; + $texlog =~ s/\.tex/\.log/; + $texaux =~ s/\.tex/\.aux/; + $texdvi =~ s/\.tex/\.dvi/; + $texps =~ s/\.tex/\.ps/; + my @garb = ($texlog,$texaux,$texdvi,$texps); +# unlink @garb; + unlink $duefile; + print "$link_text - click here to download pdf"; + print "\n"; + } + } + } else { + print "LaTeX file $texfile was not created successfully"; } +} +print "
"; +if ($number_of_files>1) { + my $zipfile=$texfile[0]; + $zipfile=~s/\.tex/\.zip/; + my $statement="zip $zipfile"; + foreach my $file (@texfile) { + $file=~s/\.tex/.\pdf/; + $statement.=' '.$file; + } + print("
Zip Output:\n");
+    system($statement);
+    print("
"); + $zipfile=~s/\/home\/httpd//; + print "
A ZIP file of all the PDFs."; +} +if ($adv) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); } + +my $done; +sub REAPER { + $done=1; +} +sub busy_wait_command { + my ($command,$message,$progress_win,$output_file)=@_; + + $SIG{CHLD} = \&REAPER; + $done=0; + my $pid=open(CMD,"$command |"); + if ($adv) { + &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message); + } + while(!$done) { + sleep 1; + my $extra_msg; + if ($output_file) { + my $size=(stat($output_file))[7]; + $extra_msg=", $size bytes generated"; + } + if ($adv) { + &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win, + $message.$extra_msg); + } + } + $SIG{CHLD}='IGNORE'; + close(CMD); +}