--- loncom/interface/printout.pl 2001/12/07 23:16:22 1.3
+++ loncom/interface/printout.pl 2007/10/11 22:49:49 1.128
@@ -1,36 +1,1008 @@
#!/usr/bin/perl
-print "Content-type: text/html\n\n";
-print "<body bgcolor=\"#FFFFFF\">\n";
-print "<h1>EXAMPLE</h1>\n";
-my $texfile = $ENV{'QUERY_STRING'};
- $_ = $texfile;
- m/^(.*)\/([^\/]+)$/;
-my $name_file = $2;
-my $path_file = $1.'/';
- chdir $path_file;
- system("latex $name_file 1>/dev/null 2>/dev/null");
- $name_file =~ s/\.tex/\.dvi/;
-my $new_name_file = $name_file;
- $new_name_file =~ s/\.dvi/\.ps/;
-my $comma = "dvips -o $new_name_file";
- system("$comma $name_file");
- $_ = $new_name_file;
- m/^(.*)\./;
-my $tempo_file = $1.'temporar.ps';
-my $name_file = $1.'.pdf';
- $comma = "psnup -2 -s1.0 $new_name_file";
- system("$comma $tempo_file");
- system("ps2pdf $tempo_file $name_file");
-
-
-print "<a href=\"/prtspool/$name_file\">Your PDF document</a>\n";
-print "\n";
+# CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc.
+#
+# $Id: printout.pl,v 1.128 2007/10/11 22:49:49 albertel Exp $
+#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
+#
+use lib '/home/httpd/lib/perl';
+use LONCAPA::loncgi;
+use File::Path;
+use File::Basename;
+use File::Copy;
+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 LONCAPA::Configuration;
+use strict;
-# my $ere;
-# foreach $ere (%ENV) {
-# print(' SS '.$ere.' => '.$ENV{$ere}.' FF '."\n\n");
-# }
-
+# 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::lonmsg::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;
+}
+
+my %perlvar=%{&LONCAPA::Configuration::read_conf('loncapa.conf')};
+ &Apache::lonlocal::get_language_handle();
+ &Apache::loncommon::content_type(undef,'text/html');
+$env{'request.noversionuri'} = '/cgi-bin/printout.pl';
+ 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_/,$student_names);
+ }
+ if ($backref) {
+ print('<p>'.&mt("[_1]Return[_2] to editing resource.",
+ "<a href=\"$backref\"><b>","</b></a>").'</p>');
+ }
+ my $figfile = $texfile;
+ $figfile =~ s/^(.*_printout)_\d+_\d+_\d+\.tex/$1\.dat/;
+ my $duefile = $texfile;
+ $duefile =~ s/^(.*_printout)_\d+_\d+_\d+\.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 $noteps;
+ my %prog_state;
+ if ($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 '') {
+ # 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;
+ if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) {
+ $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/;
+ $eps_f = $perlvar{'lonPrtDir'}.'/'.$eps_f;
+ } elsif ($eps_f=~/$perlvar{'lonDocRoot'}\/res\//) {
+ $eps_f=~m/$perlvar{'lonDocRoot'}\/res\/(.+)/;
+ $eps_f = $perlvar{'lonPrtDir'}.'/'.$1;
+ } elsif ($eps_f=~/$perlvar{'lonUsersDir'}\//) {
+ $eps_f=~/$perlvar{'lonUsersDir'}\/([^\/]+)\/\w\/\w\/\w\/(.+)/;
+ $eps_f = $perlvar{'lonPrtDir'}.'/'.$1.'/'.$2;
+ }
+ $eps_f =~ s/ /\_/g; # Spaces are problematic for system commands and LaTeX.
+ #
+ # If the file is already an .eps or .ps file,
+ # We really just need to copy it from where it was to prtspool
+ # but with the spaces substituted to _'s.
+ #
+ my ($nsname,$path, $sext) = &fileparse($eps_f, qr/\.(ps|eps)/i);
+ if ($sext =~/ps$/i) {
+ # print "$not_eps is a postscript file. copy to $path\n";
+ &File::Path::mkpath($path,0,0777);
+ #print("Made path: $path");
+ #$not_eps =~ s/^\s+//;
+ #$not_eps =~ s/\s+$//;
+ #$not_eps =~ s/ /\__/g;
+ #print("Copying $not_eps to $eps_f\n");
+ copy("$not_eps", "$eps_f");
+ # print "Copy complete\n";
+ } else {
+
+ $eps_f .= '.eps'; # Just append the eps ext.
+ 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{$not_eps})) { next; }
+ if ($advanced_role) {
+ my $prettyname=$not_eps;
+ $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|;
+ $prettyname=~s|$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,$eps_f);
+ }
+ }
+ }
+
+ }
+ }
+ if ($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;
+
+ }
+ }
+ 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 $texfile) {
+ if (($name_range ne '') && ($num_files > 1)) {
+ my $newtexfile = $texfile;
+ $newtexfile =~ s/\.tex/$name_range\.tex/;
+ rename($texfile, $newtexfile);
+ $texfile = $newtexfile;
+ }
+ $texfile =~ m/^(.*)\/([^\/]+)$/;
+ my $name_file = $2;
+ my $path_file = $1.'/';
+ chdir $path_file;
+ 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?
+ 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 ";
+ $logfilename=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
+ 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 ";
+ $texfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
+ 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>/) {
+ 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) {
+ 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("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);
+ #
+ # 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,\%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/^(.*)\./;
+ 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>";
+ unlink($missfonts_file);
+
+ }
+ if ($advanced_role) {
+ print "<br /><br />";
+ print "<b><big>The link to ";
+ $logfilename=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
+ 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 ";
+ $texfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
+ 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);
+ #
+ # 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,\%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);
+ }
+ 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 />";
+ $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";
+ }
+ unlink($missfonts_file);
+
+ }
+ } 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>");
+ $zipfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
+ 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 @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:\s+\d+\s+\d+/) {
+ my @pageinfo = split(/\s+/, $line);
+ if ($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);
+
+ }
+
+}