--- loncom/interface/printout.pl 2002/04/12 13:46:11 1.6
+++ loncom/interface/printout.pl 2005/06/04 20:48:33 1.82
@@ -1,58 +1,600 @@
#!/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 IO::File;
-print "Content-type: text/html\n\n";
-print "\n";
-print "OUTPUT is in the PDF FILE below
\n";
-my ($texfile,$laystyle,$needconvert) = split(/&/,$ENV{'QUERY_STRING'});
-if ($needconvert) {
- my $temporary_file=IO::File->new($texfile) || die "Couldn't open file for reading: $!\n";
- my @content_of_file = <$temporary_file>;
- my $content_file_string = join(' ',@content_of_file);
- my $b_noteps = index($content_file_string,'\needepsconversion{',0);
- while ($b_noteps != -1) {
- my $e_noteps = index($content_file_string,'}',$b_noteps);
- my $notepslist = substr($content_file_string,$b_noteps+19,$e_noteps-$b_noteps-19);
- my $newnotepslist = $notepslist;
- $newnotepslist =~ s/\..*$/\.eps/;
- $_ = $newnotepslist;
- m/\/(\w+\.eps)/;
- $newnotepslist = $1;
- $newnotepslist = '/home/httpd/prtspool/'.$1;
- system("convert gif:$notepslist eps:$newnotepslist" );
- $b_noteps = index($content_file_string,'\needepsconversion{',$e_noteps);
+use Image::Magick;
+use Apache::lonhtmlcommon;
+use Apache::lonnet;
+use Apache::loncommon;
+use Apache::lonlocal;
+use Apache::lonmsg;
+use LONCAPA::Enrollment;
+
+use strict;
+
+
+#
+# Determine if a user is operating as a student for this course/domain.
+#
+#
+#Parameters:
+# course - The course id.
+# cdom - The course domain.
+#
+#Implicit:
+# $env{request.role} contains the role under which this user operated this
+# this request.
+sub is_student {
+ return (! $env{'request.role.adv'});
+}
+
+#
+# Debugging: Dump the environment for debugging.
+#
+sub dumpenv {
+ print "
-------------------
";
+ foreach my $key (sort (keys %env)) {
+ print "
$key -> $env{$key}";
}
- close $temporary_file;
+ print "
-------------------
";
}
-print "$texfile\n";
- $_ = $texfile;
- m/^(.*)\/([^\/]+)$/;
-my $name_file = $2;
-my $path_file = $1.'/';
- chdir $path_file;
- system("latex $name_file 1>/dev/null 2>/dev/null");
- $name_file =~ s/\.tex/\.dvi/;
-my $new_name_file = $name_file;
- $new_name_file =~ s/\.dvi/\.ps/;
-my $comma = "dvips -o $new_name_file";
- system("$comma $name_file");
- $_ = $new_name_file;
- m/^(.*)\./;
-my $tempo_file = $1.'temporar.ps';
-my $name_file = $1.'.pdf';
-if ($laystyle eq 'album') {
- $comma = "psnup -2 -s1.0 $new_name_file";
- system("$comma $tempo_file");
- system("ps2pdf $tempo_file $name_file");
-} elsif ($laystyle eq 'book') {
- system("ps2pdf $new_name_file $name_file");
+
+#
+# This sub sends a message to the appropriate person if there was an error
+# rendering the latex At present, there's only one case to consider:
+# a student printing inside a course results in messages to the course coordinator.
+#Parmaeters:
+# identifier - The unique identifier of this cgi request.
+# badresource- Filepath to most likely failing
+# logfile - The contents of the log file (included in the message).
+# texfile - reference to an array containing the LaTeX input file
+# (included in the message).
+#Implicit inputs:
+# From the environment:
+# cgi.$identifier.user - User doing the printing.
+# cgi.$identifier.domain - Domain the user is logged in on with printing.
+# cgi.$identifier.courseid - Id of the course (if this is a course).
+# cgi.$identifier.coursedom- Domain in which course was constituted.
+# cgi.$identifier.resources - List of resource URL's for which the print
+# was attempted.
+#
+sub send_error_mail {
+ my ($identifier, $badresource, $logfile, $texfile) = @_;
+ my $user = $env{"cgi.$identifier.user"};
+ my $domain = $env{"cgi.$identifier.domain"};
+ my $courseid = $env{"cgi.$identifier.courseid"};
+ my $coursedom= $env{"cgi.$identifier.coursedom"};
+ my $resources= $env{"cgi.$identifier.resources"};
+
+ # resource file->URL
+ #
+ my $badurl = &Apache::lonnet::declutter($badresource);
+
+ # &dumpenv();
+
+
+
+ # Only continue if there is a user, domain, courseid, course domain
+ # and resources:
+
+ if(defined($user) && defined($domain) && defined($courseid) &&
+ defined($coursedom) && defined($resources) ){
+
+ # Only mail if the conditions are ripe for it:
+ # The user is a student in the course:
+ #
+
+ if (&is_student( $courseid, $coursedom)) {
+ # build the subject and message body:
+ # print "sending message to course coordinators.
";
+
+ # Todo: Convert badurl into a url from file path:
+
+ my $subject = "Error [$badurl] Print failed for $user".'@'.$domain;
+ my $message .= "Print failed to render LaTeX for $user".'@'."$domain\n";
+ $message .= " User was attempting to print: \n";
+ $message .= " $resources\n";
+ $message .= "--------------------LaTeX logfile:------------ \n";
+ $message .= $logfile;
+ $message .= "-----------------LaTeX source file: ------------\n";
+
+ foreach my $line (@$texfile) {
+ $message .= "$line\n";
+ }
+ my (undef, %receivers) = &Apache::lonfeedback::decide_receiver(undef, 0,
+ 1,1,1);
+ # print "
sending...section: $env{'request.course.sec'}";
+ foreach my $dest (keys %receivers) {
+ # print "
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 <
+Bad Cookie
+
+Your cookie information is incorrect.
+
+
+END
+ return;
+}
+ &Apache::lonlocal::get_language_handle();
+ &Apache::loncommon::content_type(undef,'text/html');
+ my $bodytag=&Apache::loncommon::bodytag('Creating PDF','','');
+ print $bodytag;
+
+ my $identifier = $ENV{'QUERY_STRING'};
+ my $texfile = $env{'cgi.'.$identifier.'.file'};
+ my $laystyle = $env{'cgi.'.$identifier.'.layout'};
+ my $numberofcolumns = $env{'cgi.'.$identifier.'.numcol'};
+ my $paper = $env{'cgi.'.$identifier.'.paper'};
+ my $selectionmade = $env{'cgi.'.$identifier.'.selection'};
+ my $tableofcontents = $env{'cgi.'.$identifier.'.tableofcontents'};
+ my $tableofindex = $env{'cgi.'.$identifier.'.tableofindex'};
+ my $advanced_role = $env{'cgi.'.$identifier.'.role'};
+ my $number_of_files = $env{'cgi.'.$identifier.'.numberoffiles'}+1;
+ my $student_names = $env{'cgi.'.$identifier.'.studentnames'};
+ my $backref = &Apache::lonnet::unescape($env{'cgi.'.$identifier.'.backref'});
+
+
+ my $adv = $env{'request.role.adv'};
+
+ my @names_pack=();
+ if ($student_names=~/_END_/) {
+ @names_pack=split(/_ENDPERSON_/,$student_names);
+ }
+
+ my $figfile = $texfile;
+ $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;
+ my $duefile = $texfile;
+ $duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/;
+ #do we have figures?
+ # print "Figure file: $figfile\n";
+ if (-e $figfile) {
+ # print "$figfile exists\n";
+ my %done_conversion;
+ my $temporary_file=IO::File->new($figfile) || die "Couldn't open fig file $figfile for reading: $!\n";
+ my @content_of_file = <$temporary_file>;
+ close $temporary_file;
+ my $noteps;
+ my %prog_state;
+ if ($adv) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Coverting Images to EPS','Picture Conversion Status',$#content_of_file,'inline','80'); }
+ foreach my $not_eps (@content_of_file) {
+ chomp($not_eps);
+ if ($not_eps ne '') {
+ # print "Converting $not_eps"; # Debugging.
+ my $status_statement='EPS picture for '.$not_eps;
+ # print "$status_statement\n";
+ $not_eps=~s|\/\.\/|\/|g;
+ my $eps_f = $not_eps;
+ $eps_f =~ s/\.[^.]*$/\.eps/i;
+ if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) {
+ $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/;
+ $eps_f = '/home/httpd/prtspool/'.$eps_f;
+ } elsif ($eps_f=~/$Apache::lonnet::perlvar{'lonDocRoot'}\/res\//) {
+ $eps_f=~m/$Apache::lonnet::perlvar{'lonDocRoot'}\/res\/(.+)/;
+ $eps_f = '/home/httpd/prtspool/'.$1;
+ } elsif ($eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\//) {
+ $eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\/([^\/]+)\/\w\/\w\/\w\/(.+)/;
+ $eps_f = '/home/httpd/prtspool/'.$1.'/'.$2;
+ }
+ $eps_f =~ s/ /\_/g; # Spaces are problematic for system commands and LaTeX.
+ my $path=$eps_f;
+ $path =~ s/\/([^\/]+)\.eps$//;
+ # print "Final file path: $path "; # Debugging
+ File::Path::mkpath($path,0,0777);
+ $not_eps =~ s/^\s+//;
+ $not_eps =~ s/\s+$//;
+ $not_eps =~ s/ /\\ /g;
+ if ( exists($done_conversion{$not_eps})) { next; }
+ if ($adv) {
+ my $prettyname=$not_eps;
+ $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|;
+ $prettyname=~s|$Apache::lonnet::perlvar{'lonDocRoot'}/|/|;
+ &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Converting to EPS '.$prettyname);
+ }
+ $done_conversion{$not_eps}=1;
+ # print "Converting $not_eps -> $eps_f"; # Debugging
+ system("convert $not_eps $eps_f");
+ #check is eps exist in prtspool
+ if(not -e $eps_f) {
+ for (my $i=0;$i<10000;$i++) {
+ if (-e $eps_f.'.'.$i) {
+ rename $eps_f.'.'.$i, $eps_f;
+ last;
+ }
+ }
+ }
+ }
+ }
+ if ($adv) {
+ &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state);
+ }
+ unlink($figfile);
+ }
+ #print "$texfile\n"; #name of the tex file for debugging only
+ my @texfile=($texfile);
+ if ($number_of_files>1) {
+ @texfile=();
+ for (my $i=1;$i<=$number_of_files;$i++) {
+ my $new_texfile=$texfile;
+ $new_texfile=~s/\.tex/_$i\.tex/;
+ push @texfile,$new_texfile;
+ }
+ }
+
+my $ind=-1;
+my %prog_state;
+print "Return to last resource.
";
+if ($adv) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status','Class Print Status',$number_of_files,'inline','80'); }
+print "
";
+foreach $texfile (@texfile) {
+ my $status_statement='';
+ my $link_text='download PDF';
+ $ind++;
+ my @stud_info=split(/_END_/,$names_pack[$ind]);
+ my @tempo_array=split(/:/,$stud_info[0]);
+ my $name;
+ if ($tempo_array[3]) {
+ $name=$tempo_array[3];
+ } else {
+ $name=$tempo_array[0].'@'.$tempo_array[1];
+ }
+ $link_text=''.$name.'';
+ $status_statement.=$name;
+ if ($#stud_info>0) {
+ @tempo_array=split(/:/,$stud_info[-1]);
+ if ($tempo_array[3]) {
+ $name=$tempo_array[3];
+ } else {
+ $name=$tempo_array[0].'@'.$tempo_array[1];
+ }
+ $link_text.=' - '.$name.'';
+ $status_statement.=' - '.$name;
+ }
+ if ($adv) { &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Creating PDF for '.$status_statement); }
+ if (-e $texfile) {
+ $texfile =~ m/^(.*)\/([^\/]+)$/;
+ my $name_file = $2;
+ my $path_file = $1.'/';
+ chdir $path_file;
+ my $dvi_file= $name_file; $dvi_file =~ s/\.tex/\.dvi/;
+ &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
+ "for $status_statement now LaTeXing file",
+ \%prog_state,$dvi_file);
+ if ($tableofcontents eq 'yes') {
+ &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
+ "for $status_statement now LaTeXing file for table of contents",
+ \%prog_state,$dvi_file);
+ } #to create table of contents
+ my $idxname=$name_file;
+ $idxname=~s/\.tex$/\.idx/;
+ if ($tableofindex eq 'yes') {
+ &busy_wait_command("makeindex $idxname",
+ "making index file",
+ \%prog_state,$idxname);
+ &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
+ "for $status_statement now LaTeXing file for index section",
+ \%prog_state,$dvi_file);
+ } #to create index
+ #Do we have a latex error in the log file?
+ my $logfilename = $texfile; $logfilename =~ s/\.tex$/\.log/;
+ my $temporary_file=IO::File->new($logfilename) || die "Couldn't open log file $logfilename for reading: $!\n";
+ my @content_of_file = <$temporary_file>;
+ close $temporary_file;
+ my $body_log_file = join(' ',@content_of_file);
+ $logfilename =~ s/\.log$/\.html/;
+ $temporary_file = IO::File->new('>'.$logfilename);
+ print $temporary_file 'LOGFILE'.$body_log_file.'
'."\n";
+ if ($body_log_file=~m/!\s+Emergency stop/) {
+ #LaTeX failed to parse tex file
+ print "LaTeX could not successfully parse your tex file.
";
+ print "It probably has errors in it.
";
+ my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
+ my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
+ my $badresource;
+ if ($whereitbegins!=-1 and $whereitends!=-1) {
+ my $badtext = substr($body_log_file,$whereitbegins+26, $whereitends-$whereitbegins-26);
+ print "With very high probability this error occured in ".$badtext."
";
+ $whereitbegins = rindex $badtext,'located in';
+ if ($whereitbegins != -1) {
+
+ $badresource = substr($badtext, $whereitbegins+27,
+ length($badtext) - $whereitbegins - 48);
+ # print "
failing resourcename: $badresource
";
+ }
+ }
+ print "Here are the error messages in the LaTeX log file
";
+ 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 "\n";
+ if ($advanced_role) {
+ # print "
Advanced role
";
+ print "The link to ";
+ $logfilename=~s/\/home\/httpd//;
+ print "Your log file ";
+ 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 $tex_temporary_file 'LOGFILE'.$body_tex_file.'
'."\n";
+ print "
";
+ print "The link to ";
+ $texfile=~s/\/home\/httpd//;
+ print "Your original LaTeX file ";
+ print "\n";
+ } else { # Student role...
+ # at this point:
+ # $body_log_file - contains the log file.
+ # $name_file - is the name of the LaTeX file.
+ # $identifier - is the unique LaTeX identifier.l
+
+ my $tex_handle = IO::File->new($name_file);
+ my @tex_contents = <$tex_handle>;
+ &send_error_mail($identifier, $badresource, $body_log_file, \@tex_contents);
+ }
+
+ } elsif ($body_log_file=~m//) {
+ my $whereitbegins = index $body_log_file,'';
+ print "You are running LaTeX in batch mode.";
+ while ($whereitbegins != -1) {
+ my $tempobegin=$whereitbegins;
+ $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$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 "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 $body_log_file,'',$tempobegin+10;
+ }
+ $name_file =~ s/\.tex/\.dvi/;
+ my $new_name_file = $name_file;
+ $new_name_file =~ s/\.dvi/\.ps/;
+ my $papera=$paper;
+ if ($papera eq 'letter') {$papera='';}
+ if ($papera ne '') {$papera='-t'.$papera;}
+ my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file";
+ &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
+ "for $status_statement now Converting to PS",
+ \%prog_state,$new_name_file);
+ if (-e $new_name_file) {
+ print "PDF output file (see link below)
\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);
-print "Your PDF document\n";
-print "\n";
+ 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 $duefile;
+ print "Your PDF document";
+ }
+ if ($advanced_role) {
+ print "
";
+ print "The link to ";
+ $logfilename=~s/\/home\/httpd//;
+ print "Your log file ";
+ 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 $tex_temporary_file 'LOGFILE'.$body_tex_file.'
'."\n";
+ print "
";
+ print "The link to ";
+ $texfile=~s/\/home\/httpd//;
+ print "Your original LaTeX file ";
+ print "\n";
+ }
+ } else {
+ #LaTeX successfully parsed tex file
+ $name_file =~ s/\.tex/\.dvi/;
+ my $new_name_file = $name_file;
+ $new_name_file =~ s/\.dvi/\.ps/;
+ my $papera=$paper;
+ if ($papera eq 'letter') {$papera='';}
+ if ($papera ne '') {$papera='-t'.$papera;}
+ my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file";
+ &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
+ "for $status_statement now Converting to PS",
+ \%prog_state,$new_name_file);
+ if (-e $new_name_file) {
+ print "
";
+ $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 () {
+ 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 $duefile;
+ print "$link_text - click here to download pdf";
+ print "\n";
+ }
+ }
+ } else {
+ print "LaTeX file $texfile was not created successfully";
+ }
+}
+print "
";
+if ($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("Zip Output:\n");
+ system($statement);
+ print("");
+ $zipfile=~s/\/home\/httpd//;
+ print "
A ZIP file of all the PDFs.";
+}
+if ($adv) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
+
+my $done;
+sub REAPER {
+ $done=1;
+}
+sub busy_wait_command {
+ my ($command,$message,$progress_win,$output_file)=@_;
+
+ $SIG{CHLD} = \&REAPER;
+ $done=0;
+ my $pid=open(CMD,"$command |");
+ if ($adv) {
+ &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);
+ }
+ while(!$done) {
+ sleep 1;
+ my $extra_msg;
+ if ($output_file) {
+ my $size=(stat($output_file))[7];
+ $extra_msg=", $size bytes generated";
+ }
+ if ($adv) {
+ &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,
+ $message.$extra_msg);
+ }
+ }
+ $SIG{CHLD}='IGNORE';
+ close(CMD);
+}