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Diff for /loncom/interface/printout.pl between versions 1.1 and 1.87

version 1.1, 2001/10/02 14:10:40 version 1.87, 2005/07/25 10:43:29
Line 1 Line 1
 #!/usr/bin/perl  #!/usr/bin/perl
 print "Content-type: text/html\n\n";  # CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc.
 print "<body bgcolor=\"#FFFFFF\">\n";  #
 print "<h1>EXAMPLE</h1>\n";  #
 my $texfile = $ENV{'QUERY_STRING'};  # Copyright Michigan State University Board of Trustees
  $_ = $texfile;  #
  m/^(.*)\/([^\/]+)$/;   # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
 my $name_file = $2;  #
 my $path_file = $1.'/';  # LON-CAPA is free software; you can redistribute it and/or modify
  chdir $path_file;  # it under the terms of the GNU General Public License as published by
  system("latex $name_file 1>/dev/null 2>/dev/null");  # the Free Software Foundation; either version 2 of the License, or
  $name_file =~ s/\.tex/\.dvi/;  # (at your option) any later version.
 my $new_name_file = $name_file;  #
  $new_name_file =~ s/\.dvi/\.ps/;  # LON-CAPA is distributed in the hope that it will be useful,
 my $pro_fun = "dvips -o $new_name_file";  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  system("$pro_fun $name_file");  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 my $name_file = $new_name_file;  # GNU General Public License for more details.
  $name_file =~ s/\.ps/\.pdf/;  #
  system("ps2pdf $new_name_file $name_file");  # You should have received a copy of the GNU General Public License
   # along with LON-CAPA; if not, write to the Free Software
   # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #print "<a href=\"http://bistromath.lite.msu.edu/$name_file\">Your PDF document</a>\n";  #
 print "\n";  # /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;
   use Apache::lonhtmlcommon;
   use Apache::lonnet;
   use Apache::loncommon;
   use Apache::lonlocal;
   use Apache::lonmsg;
   use LONCAPA::Enrollment;
   
   use strict;
   
   
   #
   #   Determine if a user is operating as a student for this course/domain.
   #
   #
   #Parameters:
   #   course  - The course id.
   #   cdom    - The course domain.
   #
   #Implicit:
   #    $env{request.role} contains the role under which this user operated this
   #                       this request.
   sub is_student {
       return (! $env{'request.role.adv'});
   }
   
   #
   #   Debugging:  Dump the environment for debugging.
   #
   sub dumpenv  {
       print "<br />-------------------<br />";
       foreach my $key (sort (keys %env)) {
    print "<br />$key -> $env{$key}";
       }
       print "<br />-------------------<br />";
   }
   
   #
   #   This sub sends a message to the appropriate person if there was an error
   #   rendering the latex  At present, there's only one case to consider:
   #   a student printing inside a course results in messages to the course coordinator.
   #Parmaeters:
   #    identifier -  The unique identifier of this cgi request.
   #    badresource-  Filepath to most likely failing 
   #    logfile    -  The contents of the log file (included in the message).
   #    texfile    -  reference to an array containing the LaTeX input file
   #                  (included in the message).
   #Implicit inputs:
   #   From the environment:
   #       cgi.$identifier.user     - User doing the printing.
   #       cgi.$identifier.domain   - Domain the user is logged in on with printing.
   #       cgi.$identifier.courseid - Id of the course (if this is a course).
   #       cgi.$identifier.coursedom- Domain in which course was constituted.
   #       cgi.$identifier.resources - List of resource URL's for which the print
   #                                  was attempted.
   # 
   sub send_error_mail {
       my ($identifier, $badresource, $logfile, $texfile) = @_;
       my $user     = $env{"cgi.$identifier.user"};
       my $domain   = $env{"cgi.$identifier.domain"};
       my $courseid = $env{"cgi.$identifier.courseid"};
       my $coursedom= $env{"cgi.$identifier.coursedom"};
       my $resources= $env{"cgi.$identifier.resources"};
   
       #  resource file->URL
       #
       my $badurl = &Apache::lonnet::declutter($badresource);
   
       # &dumpenv();
   
   
   
       #  Only continue if there is a user, domain, courseid, course domain
       #  and resources:
   
       if(defined($user)       && defined($domain) && defined($courseid) &&
          defined($coursedom)  && defined($resources) ){
      
    #  Only mail if the conditions are ripe for it:
    #  The user is a student in the course:
    #
   
    if (&is_student( $courseid, $coursedom)) {
       # build the subject and message body:
       # print "sending message to course coordinators.<br />";
   
       # Todo: Convert badurl into a url from file path:
   
       my $subject  = "Error [$badurl] Print failed for $user".'@'.$domain;
       my $message .= "Print failed to render LaTeX for $user".'@'."$domain\n";
       $message    .= "  User was attempting to print: \n";
       $message    .= "       $resources\n";
       $message    .= "--------------------LaTeX logfile:------------ \n";
       $message    .= $logfile;
       $message    .= "-----------------LaTeX source file: ------------\n";
       
       foreach my $line (@$texfile) {
    $message .= "$line\n";
       }
       my (undef, %receivers) = &Apache::lonfeedback::decide_receiver(undef, 0,
     1,1,1);
       # print "<br /> sending...section:  $env{'request.course.sec'}";
       foreach my $dest (keys %receivers) {
    # print "<br /> dest is $dest";
    my @destinfo = split(/:/,$dest);
    my $user = $destinfo[0];
    my $dom  = $destinfo[1];
   
    &Apache::lonmsg::user_normal_msg($user, $dom,
    $subject, $message);
   
    # No point in looking at the return status as there's no good
    # error action I can think of right now (log maybe?).
       }
    }
       }
   }
   
   $|=1;
   if (! &LONCAPA::loncgi::check_cookie_and_load_env()) {
       print <<END;
   Content-type: text/html
   
   <html>
   <head><title>Bad Cookie</title></head>
   <body>
   Your cookie information is incorrect.
   </body>
   </html>
   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 $advanced_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);
     }
   
     my $figfile = $texfile;
     $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;
     my $duefile = $texfile;
     $duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/;
     #do we have figures?
     # print "Figure file: $figfile\n";
     if (-e $figfile) {
         # print "$figfile exists\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 $noteps;
         my %prog_state;
         if ($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 '') {
         # print "Converting $not_eps"; # Debugging.
                 my $status_statement='EPS picture for '.$not_eps;
         # print "$status_statement\n";
         $not_eps=~s|\/\.\/|\/|g;
         my $eps_f = $not_eps;
         # $eps_f =~ s/\.[^.]*$/\.eps/i;
         $eps_f .= '.eps'; # Just append the eps ext.
         if ($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;
         }
         $eps_f  =~ s/ /\_/g; # Spaces are problematic for system commands and LaTeX.
         my $path=$eps_f;
         $path =~ s/\/([^\/]+)\.eps$//;
         # print "Final file path: $path "; # Debugging
         File::Path::mkpath($path,0,0777);
         $not_eps =~ s/^\s+//;
         $not_eps =~ s/\s+$//;
         $not_eps =~ s/ /\\ /g;
         if ( exists($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;
         # print "Converting $not_eps -> $eps_f"; # Debugging
         system("convert $not_eps $eps_f");
                 #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//;
     $new_texfile = sprintf("%s_%03d.tex", $new_texfile,$i);
     push @texfile,$new_texfile;
         } 
     }
   
   my $ind=-1;
   my %prog_state;
   print "<a href=\"$backref\"><b>Return</b></a> to last resource.<br /><br />";
   if ($adv) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status','Class Print Status',$number_of_files,'inline','80'); }
   print "<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') {
         &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 $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n";
         if ($body_log_file=~m/!\s+Emergency stop/) {
     my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
     my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
     my $badresource;
     my $badtext;
     if ($whereitbegins!=-1 and $whereitends!=-1) {
         $badtext = substr($body_log_file,$whereitbegins+26, $whereitends-$whereitbegins-26);
         $whereitbegins  = rindex $badtext,'located in';
         if ($whereitbegins != -1) {
     
     $badresource = substr($badtext, $whereitbegins+27, 
    length($badtext) - $whereitbegins - 48);
     # print "<br />failing resourcename: $badresource<br />";
         }
     }
     
             if ($advanced_role) {  
         #LaTeX failed to parse tex file 
         print "<h2>LaTeX could not successfully parse your tex file.</h2>";
         print "It probably has errors in it.<br />";
         print "With very high probability this error occured in ".$badtext."<br /><br />";
         print "Here are the error messages in the LaTeX log file<br /><pre>";
         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]";
     }  
         }
         print "</pre>\n";
         # print "<br /> Advanced role <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 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 $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$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 { # Student role...
         #  at this point:
         #    $body_log_file - contains the log file.
                 #    $name_file     - is the name of the LaTeX file.
                 #    $identifier    - is the unique LaTeX identifier.l
   
         print "<br />There are errors in $badtext";
         print "<br />These errors prevent this resource from printing correctly";
         my $tex_handle = IO::File->new($name_file);
         my @tex_contents = <$tex_handle>;
         &send_error_mail($identifier, $badresource, $body_log_file, \@tex_contents);
         print "<br />A message has been sent to the instructor describing this failure<br />"
     }
   
         } 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 $papera=$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 "<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') {
     my $papera=$paper;
                     if ($papera eq 'letter') {$papera='';}
     if ($papera ne '') {$papera='-p'.$papera;}
     $comma = "psnup $papera -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 $duefile;
         print "<a href=\"/prtspool/$pdf_file\">Your PDF document</a>";
     }
     if ($advanced_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 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 $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$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 $papera=$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 "<br />";
         $new_name_file =~ m/^(.*)\./;
         my $ps_file = my $tempo_file = $1.'temporar.ps';
         my $pdf_file = $1.'.pdf';
         $papera=~s/t/p/;
         if ($laystyle eq 'album' and $numberofcolumns eq '2') {
     $comma = "psnup $papera -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') {
     $comma = 'pstops '.$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 (<FFH>) {
         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 $duefile;
         print "<a href=\"/prtspool/$pdf_file\">$link_text - click here to download pdf</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; 
       }
       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;
   }
   
   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);
   }
   
   
   
   
 #    my $ere;  
 #    foreach $ere (%ENV) {  
 # print(' SS '.$ere.' => '.$ENV{$ere}.' FF '."\n\n");  
 #    }  
    
Removed from v.1.1  
changed lines
  Added in v.1.87

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