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Diff for /loncom/interface/printout.pl between versions 1.30 and 1.109

version 1.30, 2003/07/23 18:58:59 version 1.109, 2006/08/14 10:52:30
Line 1 Line 1
 #!/usr/bin/perl  #!/usr/bin/perl
   # CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc.
   #
   #
   # 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 File::Basename;
 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::lonnet;
   my ($texfile,$laystyle,$numberofcolumns,$selectionmade) = split(/&/,$ENV{'QUERY_STRING'});  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:
   #    none
   #Implicit:
   #    $env{request.role} contains the role under which this user operated this
   #                       this request.
   sub is_student {
       return ($env{'request.role'}=~/^st\./);
   }
   
   #
   #   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()) {
       # 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";
       foreach my $resource (split(/:/,$resources)) {
    $message    .= "       $resource\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');
   
     print(&Apache::loncommon::start_page('Creating PDF'));
   
     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 @names_pack=();
     if ($student_names=~/_END_/) {  
         @names_pack=split(/_ENDPERSON_/,$student_names);
     }
   
   print "<a href=\"$backref\"><b>Return</b></a> to last resource.<br /><br />";
   
   my $figfile = $texfile;    my $figfile = $texfile;
   $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;    $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;
   my $duefile = $texfile;    my $duefile = $texfile;
   $duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/;    $duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/;
   #do we have figures?    #do we have figures?
     # print "Figure file: $figfile\n";
   if (-e $figfile) {    if (-e $figfile) {
       my $temporary_file=IO::File->new($figfile) || die "Couldn't open file for reading: $!\n";        # print "$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>;        my @content_of_file = <$temporary_file>;
       close $temporary_file;          close $temporary_file;  
       my $noteps;        my $noteps;
       foreach $not_eps (@content_of_file) {        my %prog_state;
         if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Coverting Images to EPS','Picture Conversion Status',$#content_of_file,'inline','80');  }
         print('<br />');
         foreach my $not_eps (@content_of_file) {
     chomp($not_eps);
   if ($not_eps ne '') {    if ($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;        my $eps_f = $not_eps;
       $eps_f =~ s/\.[^.]*$/\.eps/i;        # $eps_f =~ s/\.[^.]*$/\.eps/i;
       $_ = $eps_f;        $eps_f .= '.eps'; # Just append the eps ext.
       m/\/([^\/]+)$/;        if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) {
       $eps_f = '/home/httpd/prtspool/'.$1;                    $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/;
       my $image = Image::Magick->new;    $eps_f = '/home/httpd/prtspool/'.$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+//;
       $not_eps =~ s/\s+$//;        $not_eps =~ s/\s+$//;
       $status = $image->Read($not_eps);        $not_eps =~ s/ /\\ /g;
       if ($status) {print "  $status  ";}        if ( exists($done_conversion{$not_eps})) { next; }
       $image->Set(page => '+100+200');         if ($advanced_role) {
       $status = $image->Write($eps_f);        my $prettyname=$not_eps;
       if ($status) {print "  $status  ";}    $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|;
               #check is eps exist in prtspool    $prettyname=~s|$Apache::lonnet::perlvar{'lonDocRoot'}/|/|;
               if(not -e $eps_f) {    &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
    'Converting to EPS '.$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) {
     # converting an animated gif creates either:
                     # anim.gif.eps.0
                     # or
                     # anim.gif-0.eps
   for (my $i=0;$i<10000;$i++) {    for (my $i=0;$i<10000;$i++) {
       if (-e $eps_f.'.'.$i) {        if (-e $eps_f.'.'.$i) {
   rename $eps_f.'.'.$i, $eps_f;    rename($eps_f.'.'.$i, $eps_f);
     last;
         }
         my $anim_eps = $eps_f;
         $anim_eps =~ s/(\.[^.]*)\.eps$/$1-$i\.eps/i;
         if (-e $anim_eps) {
     rename($anim_eps, $eps_f);
   last;    last;
       }        }
   }    }
       }          }
         # imagemagick 6.2.0-6.2.7 fails to properly handle
                 # convert anim.gif anim.gif.eps
                 # it creates anim.eps instead. 
                 if (not -e $eps_f) {
     my $eps_f2 = $eps_f;
     $eps_f2 =~ s/\.[^.]*\.eps$/\.eps/i;
     if(-e $eps_f2) {
         rename($eps_f2,$eps_f);
     }
         }
   
   }    }
       }        }
       unlink $figfile;        if ($advanced_role) { 
     &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 $ind=-1;
   my %prog_state;
   if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status','Class Print Status',$number_of_files,'inline','80'); }
   print "<br />";
   my $num_files = @texfile;
   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;
     my $name_range='';
     if ($tempo_array[3]) {
         $name=$tempo_array[3];
         ($name_range) = split(/,/,$name, 2);
     } else {
         $name=$tempo_array[0].'@'.$tempo_array[1];
         $name_range = $tempo_array[0];
     }
     if (($name ne "") && ($name ne '@') ) { # Could be printing codes...
         $link_text='<b>'.$name.'</b>';
         $status_statement.=$name;
     }
     if ($#stud_info>0) {
         @tempo_array=split(/:/,$stud_info[-1]);
         if ($tempo_array[3]) {
     $name=$tempo_array[3];
     my ($lastname) = split(/,/, $name,2);
     $name_range .= "-".$lastname;
         } else {
     $name=$tempo_array[0].'@'.$tempo_array[1];
     $name_range .= '-'.$tempo_array[0];
         }
         if (($name ne "") && ($name ne '@')) {
     $link_text.=' - <b>'.$name.'</b>';
     $status_statement.=' -  '.$name;
     
         }
   }    }
   #print "$texfile\n"; #name of the tex file for debugging only    if(($num_files > 1) && ($link_text eq 'download PDF')) { # Printing codes
         $link_text = '<b>'.basename($texfile,'.tex').'.pdf</b>';
         $status_statement .= basename($texfile);
     }
     $name_range =~ s/'//g; # O'Neil -> ONeil e.g.
     print "<br/>";
     if ($advanced_role) { &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Creating PDF for '.$status_statement); }
     #  This little piece of dirt puts username ranges into the original tex
     #  Tex filename from which they'll propagate into the other filenames as well.
     #
   if (-e $texfile) {    if (-e $texfile) {
         if (($name_range ne '') && ($num_files > 1)) {
     my $newtexfile = $texfile;
     $newtexfile    =~ s/\.tex/$name_range\.tex/;
     rename($texfile, $newtexfile);
     $texfile       = $newtexfile;
         }
       $texfile =~ m/^(.*)\/([^\/]+)$/;         $texfile =~ m/^(.*)\/([^\/]+)$/; 
       my $name_file = $2;        my $name_file = $2;
       my $path_file = $1.'/';        my $path_file = $1.'/';
       chdir $path_file;        chdir $path_file;
       system("latex $name_file 1>/dev/null 2>/dev/null");        my $dvi_file= $name_file; $dvi_file =~ s/\.tex/$name_range\.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 $status_statement First LaTeX of file for table of contents",
    \%prog_state,$dvi_file);
         &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
    "for $status_statement Second LaTeX of file for table of contents",
    \%prog_state,$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?        #Do we have a latex error in the log file?
       my $logfilename = $texfile;        my $logfilename = $texfile; $logfilename =~ s/\.tex$/\.log/;
       $logfilename =~ s/\.tex$/\.log/;        my $temporary_file=IO::File->new($logfilename) || die "Couldn't open log file $logfilename for reading: $!\n";
       my $temporary_file=IO::File->new($logfilename) || die "Couldn't open file for reading: $!\n";  
       my @content_of_file = <$temporary_file>;        my @content_of_file = <$temporary_file>;
       close $temporary_file;         close $temporary_file; 
       my $body_log_file = join(' ',@content_of_file);        my $body_log_file = join(' ',@content_of_file);
Line 60  use Image::Magick; Line 382  use Image::Magick;
       $temporary_file = IO::File->new('>'.$logfilename);         $temporary_file = IO::File->new('>'.$logfilename); 
       print $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n";        print $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n";
       if ($body_log_file=~m/!\s+Emergency stop/) {        if ($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 $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
   my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';    my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
     my $badresource;
     my $badtext;
   if ($whereitbegins!=-1 and $whereitends!=-1) {    if ($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 />";        $badtext = substr($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 />";
         }
   }    }
   print "Here are the error messages in the LaTeX log file</br><br />";    
   my $sygnal = 0;            if ($advanced_role) {  
   for (my $i=0;$i<=$#content_of_file;$i++) {        #LaTeX failed to parse tex file 
       if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {        print "<h2>LaTeX could not successfully parse your tex file.</h2>";
   $sygnal = 1;        print "It probably has errors in it.<br />";
       }         print "With very high probability this error occured in ".$badtext."<br /><br />";
       if ($content_of_file[$i]=~m/Here is how much of/) {        print "Here are the error messages in the LaTeX log file<br /><pre>";
   $sygnal = 0;  
       }         my $sygnal = 0;
       if ($sygnal) {        for (my $i=0;$i<=$#content_of_file;$i++) {
   print "$content_of_file[$i]<br />";    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";
         my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", "Help on printing");
         print ("$help_text");
   
     } 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 />";
         my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", "Help on printing");
         print  ("$help_text");
   
     }
   
       } elsif ($body_log_file=~m/<inserted text>/) {        } elsif ($body_log_file=~m/<inserted text>/) {
   my $whereitbegins = index $body_log_file,'<inserted text>';    my $whereitbegins = index $body_log_file,'<inserted text>';
   print "You are running LaTeX in the <b>batch mode</b>. \n";    print "You are running LaTeX in <b>batch mode</b>.";
   while ($whereitbegins != -1) {    while ($whereitbegins != -1) {
       my $tempobegin=$whereitbegins;        my $tempobegin=$whereitbegins;
       $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins;        $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins;
       my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$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 "<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";        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;        $whereitbegins = index $body_log_file,'<inserted text>',$tempobegin+10;
   }    }
   $name_file =~ s/\.tex/\.dvi/;    $name_file =~ s/\.tex/\.dvi/;
   my $new_name_file = $name_file;    my $new_name_file = $name_file;
   $new_name_file =~ s/\.dvi/\.ps/;    $new_name_file =~ s/\.dvi/\.ps/;
   my $comma = "dvips -Ppdf -G0 -o $new_name_file";    my $papera=$paper;
   system("$comma $name_file 1>/dev/null 2>/dev/null");    if ($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) {    if (-e $new_name_file) {
       print "<h1>PDF output file (see link below)</h1>\n";        my $latex_file = $name_file;
         $latex_file    =~ s/\.dvi/\.tex/;
         &repaginate($new_name_file, $latex_file, $numberofcolumns);
         #
         #  Now have to re-latex, re dvips again to 
         #  get the repaginated postscript.
         #
         &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
    "for $status_statement first latex to repaginate",
    \%prog_state, $name_file);
         if ($tableofcontents eq 'yes') {
     &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
        "for $status_statement second latex to repaginate",
        \%prog_state, $name_file);
     &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
        "for $status_statement third latex to repaginate",
        \%prog_state, $name_file);
         }
         if ($tableofindex eq 'yes') {
     my $idxname = $latex_file;
     $idxname =~ s/\.tex$/\.idx/;
     &busy_wait_command("makindex $idxname",
        "Re-creating index file",
        \%prog_state, $idxname);
     &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
        "for $status_statement now Recreting index (latex)",
        \%prog_state, $dvi_file);
   
         }
         &busy_wait_command("$comma $name_file 1>dev/null 2>/dev/null",
    "for $status_statement dvips to repaginate",
    \%prog_state, $new_name_file);
         print "\n<h1>PDF output file (see link below)</h1>\n";
       $new_name_file =~ m/^(.*)\./;        $new_name_file =~ m/^(.*)\./;
       my $tempo_file = $1.'temporar.ps';        my $ps_file = my $tempo_file = $1.'temporar.ps';
       my $name_file = $1.'.pdf';        my $pdf_file = $1.'.pdf';
       if ($laystyle eq 'album' and $numberofcolumns eq '2') {        if ($laystyle eq 'album' and $numberofcolumns eq '2') {
   $comma = "psnup -2 -s1.0 $new_name_file";    my $papera=$paper;
   system("$comma $tempo_file 1>/dev/null 2>/dev/null");                     if ($papera eq 'letter') {$papera='';}
   system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");    if ($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 $numberofcolumns eq '2') {        } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
   $comma = 'pstops -pletter "2:0+1(0.48w,0)"';    my $papera=$paper;
   system("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null");                    if ($papera eq 'letter') {$papera='';}
   system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");    if ($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 {        } else {
   system("ps2pdf $new_name_file $name_file 1>/dev/null 2>/dev/null");    $ps_file=$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 $texlog = $texfile;
       my $texaux = $texfile;        my $texaux = $texfile;
       my $texdvi = $texfile;        my $texdvi = $texfile;
Line 124  use Image::Magick; Line 548  use Image::Magick;
       my @garb = ($texaux,$texdvi,$texps);        my @garb = ($texaux,$texdvi,$texps);
 #  unlink @garb;  #  unlink @garb;
       unlink $duefile;        unlink $duefile;
       print "<a href=\"/prtspool/$name_file\">Your PDF document</a>";        print "<a href=\"/prtspool/$pdf_file\">Your PDF document</a>";
     }
     if ($advanced_role) {  
       print "<br /><br />";        print "<br /><br />";
               print "<b><big>The link to ";        print "<b><big>The link to ";
               $logfilename=~s/\/home\/httpd//;        $logfilename=~s/\/home\/httpd//;
       print "<a href=\"$logfilename\">Your log file </a></big></b>";        print "<a href=\"$logfilename\">Your log file </a></big></b>";
       print "\n";        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 {        } else {
   #LaTeX successfully parsed tex file     #LaTeX successfully parsed tex file 
   $name_file =~ s/\.tex/\.dvi/;    $name_file =~ s/\.tex/\.dvi/;
   my $new_name_file = $name_file;    my $new_name_file = $name_file;
   $new_name_file =~ s/\.dvi/\.ps/;    $new_name_file =~ s/\.dvi/\.ps/;
   my $comma = "dvips -Ppdf -G0 -o $new_name_file";    my $papera=$paper;
   system("$comma $name_file 1>/dev/null 2>/dev/null");    if ($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) {    if (-e $new_name_file) {
       print "<h1>Successfully created PDF output file (see link below)</h1>\n";        my $latex_file = $name_file;
         $latex_file =~ s/\.dvi/\.tex/;
         &repaginate($new_name_file, $latex_file,  $numberofcolumns);
         &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
    "for $status_statement first latex to repaginate",
    \%prog_state, $name_file);
         if ($tableofcontents eq 'yes') {
     &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
        "for $status_statement second latex to repaginate",
        \%prog_state, $name_file);
     &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
        "for $status_statement third latex to repaginate",
        \%prog_state, $name_file);
         }
         if ($tableofindex eq 'yes') {
     my $idxname = $latex_file;
     $idxname    =~ s/\.tex$/\.idx/;
     &busy_wait_command("makeindex $idxname",
        "Re-creating index file",
        \%prog_state, $idxname);
     &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
        "for $status_statement now Recreting index (latex)",
        \%prog_state, $dvi_file);
         }
         &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
    "for $status_statement dvips to repaginate",
    \%prog_state, $new_name_file);
         print "<br />";
       $new_name_file =~ m/^(.*)\./;        $new_name_file =~ m/^(.*)\./;
       my $tempo_file = $1.'temporar.ps';        my $ps_file = my $tempo_file = $1.'temporar.ps';
       my $name_file = $1.'.pdf';        my $pdf_file = $1.'.pdf';
         $papera=~s/t/p/;
       if ($laystyle eq 'album' and $numberofcolumns eq '2') {        if ($laystyle eq 'album' and $numberofcolumns eq '2') {
   $comma = "psnup -2 -s1.0 $new_name_file";    $comma = "psnup $papera -2 -s1.0 $new_name_file";
   system("$comma $tempo_file 1>/dev/null 2>/dev/null");     &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
   system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");       "for $status_statement now Modifying PS layout",
        \%prog_state,$tempo_file);
       } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {        } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
   $comma = 'pstops -pletter "2:0+1(0.48w,0)"';    $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"';
   system("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null");    &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null",
   system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");       "for $status_statement now Modifying PS layout",
        \%prog_state,$tempo_file); 
       } else {        } else {
   system("ps2pdf $new_name_file $name_file 1>/dev/null 2>/dev/null");    $ps_file=$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 $texlog = $texfile;
       my $texaux = $texfile;        my $texaux = $texfile;
       my $texdvi = $texfile;        my $texdvi = $texfile;
Line 165  use Image::Magick; Line 664  use Image::Magick;
       my @garb = ($texlog,$texaux,$texdvi,$texps);        my @garb = ($texlog,$texaux,$texdvi,$texps);
 #  unlink @garb;  #  unlink @garb;
       unlink $duefile;        unlink $duefile;
       print "<a href=\"/prtspool/$name_file\">Your PDF document</a>";        print "<a href=\"/prtspool/$pdf_file\">$link_text - click here to download pdf</a>";
       print "\n";        print "\n";
   }    }
       }        }  
   } else {    } else {
       print "LaTeX file $texfile was not created successfully";        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 ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
   print(&Apache::loncommon::end_page());
   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 ($advanced_role) {
    &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);
       }
       while(!$done) {
    sleep 1;
    my $extra_msg;
    if ($output_file) {
       my $size=(stat($output_file))[7];
       $extra_msg=", $size bytes generated";
    }
    if ($advanced_role) {
       &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,
     $message.$extra_msg);
    }
       }
       $SIG{CHLD}='IGNORE';
       close(CMD);
   }
   
   #  Repagninate
   #  What we need to do:
   #   - Count the number of pages in each student.
   #   - Rewrite the latex file replacing the \specials that
   #     mark the end of student with an appropriate number of newlines.
   #   parameters:
   #     psfile     - Postscript filename
   #     latexfile  - LaTeX filename
   #     columns    - number of columns.
   sub repaginate {
   
       # We will try to do this in 2 passes through the postscript since
       # the postscript is potentially large, to do 2 passes, the first pass
       # must be able to calculate the total number of document pages so that
       # at the beginning of the second pass we already know how to replace
       #  %%Pages:
   
       #  Figure out
       #    1. Number of pages in the document
       #    2. Maximum number of pages in a student
       #    3. Number of pages in each student.
   
       my ($postscript_filename, $latex_filename, $num_columns) = @_;
       open(PSFILE, "<$postscript_filename");
       my $line;
       my $total_pages; # Total pages in document.
       my $seen_pages        = 0; # There are several %%Pages only the first is useful
       my $student_number    = 0; # Index of student we're working on.
       my @pages_in_student; # For each student his/her initial page count.
       my $max_pages = 0; # Pages in 'longest' student.
       my $page_number = 0;
       &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state, 
     "Counting pages for student: ".$student_number+1);
   
       while ($line = <PSFILE>) {
   
    # Check for total pages (%%Pages:)
   
    if (($line =~ /^%%Pages:/) && (!$seen_pages)) {
       my @pageinfo = split(/ /,$line);
       $total_pages = $pageinfo[1];
       $seen_pages  = 1;
    }
    #  Check for %%Page: n m  $page_number will be the
    #  biggest of these until we see an endofstudent.
    #  Note that minipages generate spurious %Page: 1 1's so
    #  we only are looking for the largest n (n is page number at the
    #  bottom of the page, m the page number within the document.
    #
   
    if ($line =~ /^%%Page:/) {
       my @pageinfo = split(/ /, $line);
       if ($page_number < $pageinfo[1]) {
    $page_number = $pageinfo[1];
       }
    }
    #  ENDOFSTUDENTSTAMP - save the page_number, reset and, if necessary
    #                      udpate max_pages.
    #
    if ($line =~ /ENDOFSTUDENTSTAMP/) {
       $pages_in_student[$student_number] = $page_number;
       $student_number++;
       &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state, 
     "Counting pages for student: ".$student_number+1);
       
       if ($page_number > $max_pages) {
    $max_pages = $page_number;
       }
       $page_number = 0;
     
    }
   
   
       }
       close(PSFILE);
   
       #  If 2 columns, max_pages must go to an even number of columns:
   
      
       if ($num_columns == 2) {
    if ($max_pages % 2) {
       $max_pages++;
    }
       }
       
       #  Now rewrite the LaTex file, substituting our \special
       #  with an appropriate number of \newpage directives.
   
       my $outfilename = $latex_filename."temp";
   
       open(LATEXIN, "<$latex_filename");
       open(LATEXOUT, ">$outfilename");
   
   
       $student_number = 0; # first student...
       &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state, 
     "Repaginating student ".$student_number+1);
   
       while (my $line = <LATEXIN>) {
    if ($line eq "\\special{ps:ENDOFSTUDENTSTAMP}\n") {
       # only end of student stamp if next line is ENDOFSTUDENTSTAMP:
   
     
   
       # End of student replace with 0 or more newpages.
       
       my $addlines = $max_pages - $pages_in_student[$student_number];
       while($addlines)  {
    print LATEXOUT '\clearpage \strut \clearpage';
   
    $addlines--;
       }
       
       $student_number++;
       &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state, 
     "Repaginating student ".$student_number+1);
       
    } else {
       print LATEXOUT $line;
    }
       }
   
       close(LATEXIN);
       close(LATEXOUT);
       rename($outfilename, $latex_filename);
   
   }
   
Removed from v.1.30  
changed lines
  Added in v.1.109

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