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Diff for /loncom/interface/printout.pl between versions 1.71 and 1.118

version 1.71, 2004/12/20 21:15:20 version 1.118, 2006/12/18 21:03:10
Line 1 Line 1
 #!/usr/bin/perl  #!/usr/bin/perl
 # CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc.  # CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc.
 #  #
 # $Id$  
 #  #
 # Copyright Michigan State University Board of Trustees  # Copyright Michigan State University Board of Trustees
 #  #
Line 27 Line 26
 #  #
   
 use lib '/home/httpd/lib/perl';  use lib '/home/httpd/lib/perl';
 use LONCAPA::loncgi();  use LONCAPA::loncgi;
 use File::Path;  use File::Path;
   use File::Basename;
   use File::Copy;
 use IO::File;  use IO::File;
 use Image::Magick;  use Image::Magick;
 use Apache::lonhtmlcommon;  use Apache::lonhtmlcommon();
 use Apache::lonnet();  use Apache::lonnet;
 use Apache::loncommon;  use Apache::loncommon();
 use Apache::lonlocal;  use Apache::lonlocal;
   use Apache::lonmsg();
   use LONCAPA::Enrollment;
   
 use strict;  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;  $|=1;
 my %origENV=%ENV;  
 if (! &LONCAPA::loncgi::check_cookie_and_load_env()) {  if (! &LONCAPA::loncgi::check_cookie_and_load_env()) {
     print <<END;      print <<END;
 Content-type: text/html  Content-type: text/html
Line 54  END Line 162  END
 }  }
  &Apache::lonlocal::get_language_handle();   &Apache::lonlocal::get_language_handle();
  &Apache::loncommon::content_type(undef,'text/html');   &Apache::loncommon::content_type(undef,'text/html');
  my $bodytag=&Apache::loncommon::bodytag('Creating PDF','','');  
  print $bodytag;  
   
   my $identifier = $ENV{'QUERY_STRING'};    print(&Apache::loncommon::start_page('Creating PDF'));
   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 $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=();    my @names_pack=();
   if ($student_names=~/_END_/) {      if ($student_names=~/_END_/) {  
       @names_pack=split(/_ENDPERSON_/,$student_names);        @names_pack=split(/_ENDPERSON_/,$student_names);
   }    }
   #got what we needed reset ENV in case it is to big for system  
   %ENV=%origENV;  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 $figfile) {
         # print "$figfile exists\n";
       my %done_conversion;        my %done_conversion;
       my $temporary_file=IO::File->new($figfile) || die "Couldn't open fig file $figfile for reading: $!\n";        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 $noteps;
       my %prog_state;        my %prog_state;
       if ($adv) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Coverting Images to EPS','Picture Conversion Status',$#content_of_file,'inline','80');  }        if ($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) {        foreach my $not_eps (@content_of_file) {
   chomp($not_eps);    chomp($not_eps);
   if ($not_eps ne '') {    if ($not_eps ne '') {
          # print "Converting $not_eps"; # Debugging.
               my $status_statement='EPS picture for '.$not_eps;                my $status_statement='EPS picture for '.$not_eps;
         # print "$status_statement\n";
       $not_eps=~s|\/\.\/|\/|g;        $not_eps=~s|\/\.\/|\/|g;
       my $eps_f = $not_eps;        my $eps_f = $not_eps;
       $eps_f =~ s/\.[^.]*$/\.eps/i;        # $eps_f =~ s/\.[^.]*$/\.eps/i;
       if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) {        if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) {
                   $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/;                    $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/;
   $eps_f = '/home/httpd/prtspool/'.$eps_f;    $eps_f = '/home/httpd/prtspool/'.$eps_f;
Line 110  END Line 221  END
   $eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\/([^\/]+)\/\w\/\w\/\w\/(.+)/;    $eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\/([^\/]+)\/\w\/\w\/\w\/(.+)/;
   $eps_f = '/home/httpd/prtspool/'.$1.'/'.$2;    $eps_f = '/home/httpd/prtspool/'.$1.'/'.$2;
       }        }
       my $path=$eps_f;        $eps_f  =~ s/ /\_/g; # Spaces are problematic for system commands and LaTeX.
       $path=~s/\/([^\/]+)\.eps$//;        # 
       File::Path::mkpath($path,0,0777);        # If the file is already an .eps or .ps file,
       my $image = Image::Magick->new;        # We really just need to copy it from where it was to prtspool
       $not_eps =~ s/^\s+//;        # but with the spaces substituted to _'s.
       $not_eps =~ s/\s+$//;        #
       if ( exists($done_conversion{$not_eps})) {        my ($nsname,$path, $sext) = &fileparse($eps_f, qr/\.(ps|eps)/i);
   next;        if ($sext =~/ps$/i) {
       }    # print "$not_eps is a postscript file. copy to $path\n";
       if ($adv) {    &File::Path::mkpath($path,0,0777);
   my $prettyname=$not_eps;    #print("Made path: $path");
   $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|;    #$not_eps =~ s/^\s+//;
   $prettyname=~s|$Apache::lonnet::perlvar{'lonDocRoot'}/|/|;    #$not_eps =~ s/\s+$//;
   &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Converting to EPS '.$prettyname); }    #$not_eps =~ s/ /\__/g;
       $done_conversion{$not_eps}=1;    #print("Copying $not_eps to $eps_f\n");
       my $status = $image->Read($not_eps);    copy("$not_eps", "$eps_f"); 
       if ($status) {print "  $status  ";}    # print "Copy complete\n";
       $image->Set(page => '+100+200');         } else {
       $status = $image->Write($eps_f);            
       if ($status) {print "  $status  ";}    $eps_f .= '.eps'; # Just append the eps ext.
               #check is eps exist in prtspool    my $path=$eps_f;
               if(not -e $eps_f) {    $path =~ s/\/([^\/]+)\.eps$//;
   for (my $i=0;$i<10000;$i++) {    # print "Final file path: $path "; # Debugging
       if (-e $eps_f.'.'.$i) {    &File::Path::mkpath($path,0,0777);
   rename $eps_f.'.'.$i, $eps_f;    $not_eps =~ s/^\s+//;
   last;    $not_eps =~ s/\s+$//;
     $not_eps =~ s/ /\\ /g;
     if ( exists($done_conversion{$not_eps})) { next; }
     if ($advanced_role) {
         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) {
         # converting an animated gif creates either:
         # anim.gif.eps.0
         # or
         # anim.gif-0.eps
         for (my $i=0;$i<10000;$i++) {
     if (-e $eps_f.'.'.$i) {
         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;
     }
       }        }
   }    }
       }      
     # 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);
         }
     }
         }
   
   }    }
       }        }
       if ($adv) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }        if ($advanced_role) { 
     &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); 
         }
       unlink($figfile);        unlink($figfile);
   }    }
   #print "$texfile\n"; #name of the tex file for debugging only       #print "$texfile\n"; #name of the tex file for debugging only   
Line 150  END Line 304  END
       @texfile=();        @texfile=();
       for (my $i=1;$i<=$number_of_files;$i++) {        for (my $i=1;$i<=$number_of_files;$i++) {
   my $new_texfile=$texfile;    my $new_texfile=$texfile;
   $new_texfile=~s/\.tex/_$i\.tex/;    $new_texfile=~s/\.tex//;
     $new_texfile = sprintf("%s_%03d.tex", $new_texfile,$i);
   push @texfile,$new_texfile;    push @texfile,$new_texfile;
       }         } 
   }    }
   
 my $ind=-1;  my $ind=-1;
 my %prog_state;  my %prog_state;
 print "<a href=\"$backref\"><b>Return</b></a> to last resource.<br /><br />";  if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status','Class Print Status',$number_of_files,'inline','80'); }
 if ($adv) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status','Class Print Status',$number_of_files,'inline','80'); }  
 print "<br />";  print "<br />";
   my $num_files = @texfile;
 foreach $texfile (@texfile) {  foreach $texfile (@texfile) {
   my $status_statement='';    my $status_statement='';
   my $link_text='download PDF';    my $link_text='download PDF';
Line 167  foreach $texfile (@texfile) { Line 322  foreach $texfile (@texfile) {
   my @stud_info=split(/_END_/,$names_pack[$ind]);    my @stud_info=split(/_END_/,$names_pack[$ind]);
   my @tempo_array=split(/:/,$stud_info[0]);    my @tempo_array=split(/:/,$stud_info[0]);
   my $name;    my $name;
     my $name_range='';
   if ($tempo_array[3]) {    if ($tempo_array[3]) {
       $name=$tempo_array[3];        $name=$tempo_array[3];
         ($name_range) = split(/,/,$name, 2);
   } else {    } else {
       $name=$tempo_array[0].'@'.$tempo_array[1];        $name=$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;
   }    }
   $link_text='<b>'.$name.'</b>';  
   $status_statement.=$name;  
   if ($#stud_info>0) {    if ($#stud_info>0) {
       @tempo_array=split(/:/,$stud_info[-1]);        @tempo_array=split(/:/,$stud_info[-1]);
       if ($tempo_array[3]) {        if ($tempo_array[3]) {
   $name=$tempo_array[3];    $name=$tempo_array[3];
     my ($lastname) = split(/,/, $name,2);
     $name_range .= "-".$lastname;
       } else {        } else {
   $name=$tempo_array[0].'@'.$tempo_array[1];    $name=$tempo_array[0].'@'.$tempo_array[1];
     $name_range .= '-'.$tempo_array[0];
       }        }
       $link_text.=' - <b>'.$name.'</b>';        if (($name ne "") && ($name ne '@')) {
       $status_statement.=' -  '.$name;    $link_text.=' - <b>'.$name.'</b>';
   }     $status_statement.=' -  '.$name;
   if ($adv) { &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Creating PDF for '.$status_statement); }    
         }
     }
     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;
       my $dvi_file= $name_file; $dvi_file =~ s/\.tex/\.dvi/;        my $dvi_file= $name_file; $dvi_file =~ s/\.tex/$name_range\.dvi/;
       &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",        &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
  "for $status_statement now LaTeXing file",   "for $status_statement now LaTeXing file",
  \%prog_state,$dvi_file);   \%prog_state,$dvi_file);
       if ($tableofcontents eq 'yes') {        if ($tableofcontents eq 'yes') {
       &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",        &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
  "for $status_statement now LaTeXing file for table of contents",   "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);   \%prog_state,$dvi_file);
       } #to create table of contents        } #to create table of contents
       my $idxname=$name_file;        my $idxname=$name_file;
Line 219  foreach $texfile (@texfile) { Line 403  foreach $texfile (@texfile) {
       $temporary_file = IO::File->new('>'.$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 $badtext,'located in';
   print "Here are the error messages in the LaTeX log file</br><br /><pre>";        if ($whereitbegins != -1) {
   my $sygnal = 0;    
   for (my $i=0;$i<=$#content_of_file;$i++) {    $badresource = substr($badtext, $whereitbegins+27, 
       if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {   length($badtext) - $whereitbegins - 48);
   $sygnal = 1;    # print "<br />failing resourcename: $badresource<br />";
       }         }
       if ($content_of_file[$i]=~m/Here is how much of/) {  
   $sygnal = 0;  
       }   
       if ($sygnal) {  
   print "$content_of_file[$i]";  
       }    
   }    }
   print "</pre>\n";    
           if ($advans_role) {              if ($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 ";                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>";
Line 259  foreach $texfile (@texfile) { Line 456  foreach $texfile (@texfile) {
       $texfile=~s/\/home\/httpd//;        $texfile=~s/\/home\/httpd//;
       print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";        print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
       print "\n";        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>/) {
Line 283  foreach $texfile (@texfile) { Line 498  foreach $texfile (@texfile) {
      "for $status_statement now Converting to PS",       "for $status_statement now Converting to PS",
      \%prog_state,$new_name_file);       \%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);
         #
         #  One last little hinky kinky thing.
         #  It's just possible that some fonts could not be maded
         #  at the resolution of the pdf print driver.
         #  In that case a file called missfont.log will have been
         #  created that will contain the commands that were attempted
         # to create the missing fonts.  If we basically
         # take all the 8000 strings in that file, and
         # replace them with 600 (the ljfour resolution)
         # run the commands in that file and redvips,
         # we'll be able to print the missing glyphs at 600dpi.
         #
         # Supposedly it is possible to tune TeX/Metafont to do this
         # right but I failed to get that to work when following the
         # docs at the tug site, hence this rather kludgey fix.
         #
         #  We make the (I think) reasonable assumption that
         #  missing glyphs won't change the pagination and I think
         #  this is true because TeX/dvips will leave a space
         #  instead of these glyphs based on the font metrics
         #  (fancy way to say there will be a blank the size of the missing
         #  glyphs).
         #
         my $print_directory = dirname($name_file);
         my $missfonts_file  = $print_directory."/missfont.log";
         #print("<br /> Missing fonts file is: $missfonts_file");
         if (-e $missfonts_file) {
     #print("<br />Missing fonts file exists\n");
     &create_missing_fonts($missfonts_file);
     unlink($missfonts_file, \%prog_state);
     &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
        "for $status_statement dvips generated missing fonts",
        \%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 $ps_file = my $tempo_file = $1.'temporar.ps';        my $ps_file = my $tempo_file = $1.'temporar.ps';
       my $pdf_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;
                     if ($papera eq 'letter') {$papera='';}
     if ($papera ne '') {$papera='-p'.$papera;}
     $comma = "psnup $papera -2 -s1.0 $new_name_file";
   &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",    &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
      "for $status_statement now Modifying PS layout",       "for $status_statement now Modifying PS layout",
      \%prog_state,$tempo_file);        \%prog_state,$tempo_file); 
Line 320  foreach $texfile (@texfile) { Line 606  foreach $texfile (@texfile) {
 #  unlink @garb;  #  unlink @garb;
       unlink $duefile;        unlink $duefile;
       print "<a href=\"/prtspool/$pdf_file\">Your PDF document</a>";        print "<a href=\"/prtspool/$pdf_file\">Your PDF document</a>";
       if ($advans_role) {      }
   print "<br /><br />";    if ($advanced_role) {  
   print "<b><big>The link to ";        print "<br /><br />";
   $logfilename=~s/\/home\/httpd//;        print "<b><big>The link to ";
   print "<a href=\"$logfilename\">Your log file </a></big></b>";        $logfilename=~s/\/home\/httpd//;
   print "\n";        print "<a href=\"$logfilename\">Your log file </a></big></b>";
   #link tooriginal LaTeX file (included according Michael Hamlin desire)        print "\n";
   my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";        #link tooriginal LaTeX file (included according Michael Hamlin desire)
   my @tex_content_of_file = <$tex_temporary_file>;        my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
   close $tex_temporary_file;         my @tex_content_of_file = <$tex_temporary_file>;
   my $body_tex_file = join(' ',@tex_content_of_file);        close $tex_temporary_file; 
   $texfile =~ s/\.tex$/aaaaa\.html/;        my $body_tex_file = join(' ',@tex_content_of_file);
   $tex_temporary_file = IO::File->new('>'.$texfile);         $texfile =~ s/\.tex$/aaaaa\.html/;
   print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";        $tex_temporary_file = IO::File->new('>'.$texfile); 
   print "<br /><br />";        print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
   print "<b><big>The link to ";        print "<br /><br />";
   $texfile=~s/\/home\/httpd//;        print "<b><big>The link to ";
   print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";        $texfile=~s/\/home\/httpd//;
   print "\n";        print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
       }        print "\n";
   }    }
       } else {        } else {
   #LaTeX successfully parsed tex file     #LaTeX successfully parsed tex file 
Line 353  foreach $texfile (@texfile) { Line 639  foreach $texfile (@texfile) {
   &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",    &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
      "for $status_statement now Converting to PS",       "for $status_statement now Converting to PS",
      \%prog_state,$new_name_file);       \%prog_state,$new_name_file);
     #
     #  One last little hinky kinky thing.
     #  It's just possible that some fonts could not be maded
     #  at the resolution of the pdf print driver.
     #  In that case a file called missfont.log will have been
     #  created that will contain the commands that were attempted
     # to create the missing fonts.  If we basically
     # take all the 8000 strings in that file, and
     # replace them with 600 (the ljfour resolution)
     # run the commands in that file and redvips,
     # we'll be able to print the missing glyphs at 600dpi.
     #
     # Supposedly it is possible to tune TeX/Metafont to do this
     # right but I failed to get that to work when following the
     # docs at the tug site, hence this rather kludgey fix.
     #
     #  We make the (I think) reasonable assumption that
     #  missing glyphs won't change the pagination and I think
     #  this is true because TeX/dvips will leave a space
     #  instead of these glyphs based on the font metrics
     #  (fancy way to say there will be a blank the size of the missing
     #  glyphs).
     #
     my $print_directory = dirname($name_file);
     my $missfonts_file  = $print_directory."/missfont.log";
     #print("<br /> Missing fonts file is: $missfonts_file");
     if (-e $missfonts_file) {
         #print("<br />Missing fonts file exists\n");
         &create_missing_fonts($missfonts_file);
         unlink($missfonts_file);
         &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
    "for $status_statement dvips generated missing fonts",
    \%prog_state, $new_name_file);
     }
   if (-e $new_name_file) {    if (-e $new_name_file) {
         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 />";        print "<br />";
       $new_name_file =~ m/^(.*)\./;        $new_name_file =~ m/^(.*)\./;
       my $ps_file = my $tempo_file = $1.'temporar.ps';        my $ps_file = my $tempo_file = $1.'temporar.ps';
       my $pdf_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 $new_name_file";
   &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",    &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
      "for $status_statement now Modifying PS layout",       "for $status_statement now Modifying PS layout",
      \%prog_state,$tempo_file);       \%prog_state,$tempo_file);
       } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {        } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
   $papera=~s/t/p/;  
   $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"';    $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"';
   &busy_wait_command("$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",
      "for $status_statement now Modifying PS layout",       "for $status_statement now Modifying PS layout",
Line 431  if ($number_of_files>1) { Line 779  if ($number_of_files>1) {
     $zipfile=~s/\/home\/httpd//;      $zipfile=~s/\/home\/httpd//;
     print "<br /> A <a href=\"$zipfile\">ZIP file</a> of all the PDFs.";      print "<br /> A <a href=\"$zipfile\">ZIP file</a> of all the PDFs.";
 }  }
 if ($adv) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }  if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
   print(&Apache::loncommon::end_page());
 my $done;  my $done;
   
 sub REAPER {  sub REAPER {
     $done=1;      $done=1;
 }  }
Line 444  sub busy_wait_command { Line 793  sub busy_wait_command {
     $SIG{CHLD} = \&REAPER;      $SIG{CHLD} = \&REAPER;
     $done=0;      $done=0;
     my $pid=open(CMD,"$command |");      my $pid=open(CMD,"$command |");
     if ($adv) {      if ($advanced_role) {
  &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);   &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);
     }      }
     while(!$done) {      while(!$done) {
Line 454  sub busy_wait_command { Line 803  sub busy_wait_command {
     my $size=(stat($output_file))[7];      my $size=(stat($output_file))[7];
     $extra_msg=", $size bytes generated";      $extra_msg=", $size bytes generated";
  }   }
  if ($adv) {   if ($advanced_role) {
     &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,      &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,
   $message.$extra_msg);    $message.$extra_msg);
  }   }
Line 463  sub busy_wait_command { Line 812  sub busy_wait_command {
     close(CMD);      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 @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, 
     &mt("Counting pages for student: [_1]",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 = $pageinfo[1];
       } elsif ($pageinfo[2] ne 1) {
    #  current page count reset, and it's not because of a 
    #    minipage 
    # - save the page_number, reset and, if necessary
    #    update max_pages.
    push(@pages_in_student, $page_number);
    &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state, 
         &mt("Counting pages for student: [_1]", scalar(@pages_in_student)));
    if ($page_number > $max_pages) {
       $max_pages = $page_number;
    }
    $page_number = $pageinfo[1];
       }
    }
   
   
       }
       # file ended so one more student
       push(@pages_in_student, $page_number);
       &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state, 
     &mt("Counting pages for student: [_1]",scalar(@pages_in_student)));
       if ($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");
   
   
       my $student_number    = 0; # Index of student we're working on.
       &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state, 
     "Repaginating student ".$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);
   
   }
   
   #
   #   Create missing fonts given a latex missfonts.log file.
   #   This file will have lines like:
   #
   #   mktexpk --mfmode ljfour --bdpi 8000 --mag 1+0/8000 --dpi 8000 tcrm0500
   #
   #  We want to execute those lines with the 8000's changed to 600's
   #  in order to match the resolution of the ljfour printer.
   #  Of course if some wiseguy has changed the default printer from ljfour
   #  in the dvips's config.ps file that will break so we'll also
   #  ensure that --mfmode is ljfour.
   #
   sub create_missing_fonts {
       my ($fontfile, $state) = @_;
   
       # Open and read in the font file..we'll read it into the array
       #  font_commands.
       #
       open(my $font_handle, $fontfile);
       my @font_commands = <$font_handle>;
   
       # make the list contain each command only once
       my %uniq;
       @font_commands = map { $uniq{$_}++ == 0 ? $_ : () } @font_commands;
   
       #  Now process each command replacing the appropriate 8000's with
       #  600's ensuring that font names with 8000's in them are not corrupted.
       #  and if the --mfmode is not ljfour we turn it into ljfour.
       #   Then we execute the command.
       #
       
       foreach my $command (@font_commands) {
    #print("<br />Raw command: $command");
    $command =~ s/ 8000/ 600/g;    # dpi directives.
    $command =~ s/\/8000/\/600/g;  # mag directives.
    #print("<br />After dpi replacements: $command");
   
    my @cmdarray = split(/ /,$command);
    for (my $i =0; $i < scalar(@cmdarray); $i++) {
       if ($cmdarray[$i] eq '--mfmode') {
    $cmdarray[$i+1] = "ljfour";
       }
    }
    #print("<br /> before reassembly : (@cmdarray)");
    $command = join(" ", (@cmdarray));
   
    #print("<br />Creating fonts via command: $command");
    &busy_wait_command("$command 1>/dev/null 2>/dev/null",
      "Creating missing font",
      $state, $command);
      
       }
   
   }
Removed from v.1.71  
changed lines
  Added in v.1.118

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