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Diff for /loncom/interface/printout.pl between versions 1.10 and 1.59

version 1.10, 2002/07/30 14:11:17 version 1.59, 2004/07/28 22:00:14
Line 1 Line 1
 #!/usr/bin/perl  #!/usr/bin/perl
   # CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc.
   #
   # $Id$
   #
   # 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 IO::File;
 use Image::Magick;  use Image::Magick;
 print "Content-type: text/html\n\n";  use Apache::lonhtmlcommon;
 print "<body bgcolor=\"#FFFFFF\">\n";  use Apache::loncommon;
 print "<h1>OUTPUT is in the PDF FILE (see link below)</h1>\n";  use Apache::lonlocal;
 my ($texfile,$laystyle) = split(/&/,$ENV{'QUERY_STRING'});  
 my $figfile = $texfile;  use strict;
 $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;  $|=1;
 my $duefile = $texfile;  my %origENV=%ENV;
 $duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/;  if (! &LONCAPA::loncgi::check_cookie_and_load_env()) {
 my $tblfile = $texfile;      print <<END;
 $tblfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.tbl/;  Content-type: text/html
 if (-e $figfile) {  
     my $temporary_file=IO::File->new($figfile) || die "Couldn't open file for reading: $!\n";  <html>
     my @content_of_file = <$temporary_file>;  <head><title>Bad Cookie</title></head>
     close $temporary_file;    <body>
     my $noteps;  Your cookie information is incorrect.
     foreach $not_eps (@content_of_file) {  </body>
  if ($not_eps ne '') {  </html>
     my $eps_f = $not_eps;  END
     $eps_f =~ s/\..*$/\.eps/;      return;
     $_ = $eps_f;  }
     m/\/(\w+\.eps)/;   &Apache::lonlocal::get_language_handle();
     $eps_f = '/home/httpd/prtspool/'.$1;   &Apache::loncommon::content_type(undef,'text/html');
     my $image = Image::Magick->new;   my $bodytag=&Apache::loncommon::bodytag('Creating PDF','','');
     $not_eps =~ s/^\s+//;   print $bodytag;
     $not_eps =~ s/\s+$//;  
     $status = $image->Read($not_eps);    my $identifier = $ENV{'QUERY_STRING'};
     if ($status) {print "  $status  ";}    my $texfile = $ENV{'cgi.'.$identifier.'.file'};
     $image->Set(page => '+100+200');     my $laystyle = $ENV{'cgi.'.$identifier.'.layout'};
     $status = $image->Write($eps_f);        my $numberofcolumns = $ENV{'cgi.'.$identifier.'.numcol'};
     if ($status) {print "  $status  ";}    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 = $ENV{'cgi.'.$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 %done_conversion;
         my $temporary_file=IO::File->new($figfile) || die "Couldn't open file for reading: $!\n";
         my @content_of_file = <$temporary_file>;
         close $temporary_file;  
         my $noteps;
         my %prog_state;
         if ($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;
         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+//;
         $not_eps =~ s/\s+$//;
         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, $eps_f;
     last;
         }
     }
         }  
     }
         }
         if ($adv) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
         unlink($figfile);
     }
     #print "$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 $ind=-1;
   my %prog_state;
   if ($adv) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status','Class Print Status',$number_of_files,'inline','80'); }
   my $final_statement="<a href=\"$backref\"><b>Return</b></a> to last resource.<br /><br />Generated PDF File for:<br />";
   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 {
         $name=$tempo_array[0].'@'.$tempo_array[1];
     }
     $link_text='<b>'.$name.'</b> ';
     $status_statement.=$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];
         }
         $link_text.='- <b>'.$name.':</b>  ';
         $status_statement.=' -  '.$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') {
     system("latex $name_file 1>/dev/null 2>/dev/null");
         } #to create table of contents
         my $idxname=$name_file;
         $idxname=~s/\.tex$/\.idx/;
         if ($tableofindex eq 'yes') {
     system("makeindex $idxname");
     system("latex $name_file 1>/dev/null 2>/dev/null");
         } #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 file 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 $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n";
         if ($body_log_file=~m/!\s+Emergency stop/) {
     #LaTeX failed to parse tex file 
     print "<h2>LaTeX could not successfully parse your tex file.</h2>";
     print "It probably has errors in it.<br />";
     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)."<br /><br />";
     }
     print "Here are the error messages in the LaTeX log file</br><br />";
     my $sygnal = 0;
     for (my $i=0;$i<=$#content_of_file;$i++) {
         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]<br />";
         }  
     }
             if ($advans_role) {  
                 print "<b><big>The link to ";
                 $logfilename=~s/\/home\/httpd//;
         print "<a href=\"$logfilename\">Your log file </a></big></b>";
         print "\n";
                 #link tooriginal LaTeX file (included according Michael Hamlin desire)
         my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open file 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 $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
         print "<br /><br />";
         print "<b><big>The link to ";
         $texfile=~s/\/home\/httpd//;
         print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
         print "\n";
     }
   
         } elsif ($body_log_file=~m/<inserted text>/) {
     my $whereitbegins = index $body_log_file,'<inserted text>';
     print "You are running LaTeX in <b>batch mode</b>.";
     while ($whereitbegins != -1) {
         my $tempobegin=$whereitbegins;
         $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins;
         my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$whereitbegins;
         print "<br />It has found an error in".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)." <br /> 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 $body_log_file,'<inserted text>',$tempobegin+10;
     }
     $name_file =~ s/\.tex/\.dvi/;
     my $new_name_file = $name_file;
     $new_name_file =~ s/\.dvi/\.ps/;
     my $comma = "dvips -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 "<h1>PDF output file (see link below)</h1>\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') {
     $comma = 'pstops -pletter "2:0+1(0.48w,0)"';
     &busy_wait_command("$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 $duefile;
         print "<a href=\"/prtspool/$pdf_file\">Your PDF document</a>";
         if ($advans_role) {  
     print "<br /><br />";
     print "<b><big>The link to ";
     $logfilename=~s/\/home\/httpd//;
     print "<a href=\"$logfilename\">Your log file </a></big></b>";
     print "\n";
     #link tooriginal LaTeX file (included according Michael Hamlin desire)
     my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open file 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 $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
     print "<br /><br />";
     print "<b><big>The link to ";
     $texfile=~s/\/home\/httpd//;
     print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
     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 $comma = "dvips -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 $new_name_file) {
         print "<br />$final_statement ";
         $final_statement='';
         $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') {
     $comma = 'pstops -pletter "2:0+1(0.48w,0)"';
     &busy_wait_command("$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/;
         $texps =~ s/\.tex/\.ps/;
         my @garb = ($texlog,$texaux,$texdvi,$texps);
   #  unlink @garb;
         unlink $duefile;
         print "<a href=\"/prtspool/$pdf_file\">$link_text</a>";
         print "\n";
     }
         }
     } else {
         print "LaTeX file $texfile was not created successfully";
     }
   }
   print "<br />";
   if ($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; 
     }      }
     unlink $figfile;      print("<pre>Zip Output:\n");
       system($statement);
       print("</pre>");
       $zipfile=~s/\/home\/httpd//;
       print "<br /> A <a href=\"$zipfile\">ZIP file</a> of all the PDFs.";
   }
   if ($adv) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
   
   my $done;
   sub REAPER {
       $done=1;
 }  }
 print "$texfile\n";  
  $_ = $texfile;  
  m/^(.*)\/([^\/]+)$/;   
 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/;  
 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;  
 unlink $tblfile;  
 print "<a href=\"/prtspool/$name_file\">Your PDF document</a>\n";  
 print "\n";  
   
   sub busy_wait_command {
       my ($command,$message,$progress_win,$output_file)=@_;
       
       $SIG{CHLD} = \&REAPER;
       $done=0;
       my $pid=open(CMD,"$command |");
       &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=", $size bytes generated";
    }
    &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,
         $message.$extra_msg);
       }
       $SIG{CHLD}='IGNORE';
       close(CMD);
   }
   
   
   
Removed from v.1.10  
changed lines
  Added in v.1.59

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