1: #!/usr/bin/perl
2: # CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc.
3: #
4: # $Id: printout.pl,v 1.37 2003/09/01 03:30:57 albertel Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29: use IO::File;
30: use Image::Magick;
31: print "Content-type: text/html\n\n";
32: print "<body bgcolor=\"#FFFFFF\">\n";
33: my ($texfile,$laystyle,$numberofcolumns,$selectionmade) = split(/&/,$ENV{'QUERY_STRING'});
34: my $advans_role=0;
35: if ($selectionmade>=10000) {$selectionmade=$selectionmade/10000; $advans_role=1;}
36: my $figfile = $texfile;
37: $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;
38: my $duefile = $texfile;
39: $duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/;
40: #do we have figures?
41: if (-e $figfile) {
42: my $temporary_file=IO::File->new($figfile) || die "Couldn't open file for reading: $!\n";
43: my @content_of_file = <$temporary_file>;
44: close $temporary_file;
45: my $noteps;
46: foreach $not_eps (@content_of_file) {
47: if ($not_eps ne '') {
48: my $eps_f = $not_eps;
49: $eps_f =~ s/\.[^.]*$/\.eps/i;
50: $_ = $eps_f;
51: m/\/([^\/]+)$/;
52: $eps_f = '/home/httpd/prtspool/'.$1;
53: my $image = Image::Magick->new;
54: $not_eps =~ s/^\s+//;
55: $not_eps =~ s/\s+$//;
56: $status = $image->Read($not_eps);
57: if ($status) {print " $status ";}
58: $image->Set(page => '+100+200');
59: $status = $image->Write($eps_f);
60: if ($status) {print " $status ";}
61: #check is eps exist in prtspool
62: if(not -e $eps_f) {
63: for (my $i=0;$i<10000;$i++) {
64: if (-e $eps_f.'.'.$i) {
65: rename $eps_f.'.'.$i, $eps_f;
66: last;
67: }
68: }
69: }
70: }
71: }
72: unlink $figfile;
73: }
74: #print "$texfile\n"; #name of the tex file for debugging only
75: if (-e $texfile) {
76: $texfile =~ m/^(.*)\/([^\/]+)$/;
77: my $name_file = $2;
78: my $path_file = $1.'/';
79: chdir $path_file;
80: system("latex $name_file 1>/dev/null 2>/dev/null");
81: if ($selectionmade>=10) {system("latex $name_file 1>/dev/null 2>/dev/null");} #to create table of contents
82: my $idxname=$name_file;
83: $idxname=~s/\.tex$/\.idx/;
84: if ($selectionmade>=100) {
85: system("makeindex $idxname");
86: system("latex $name_file 1>/dev/null 2>/dev/null");
87: } #to create index
88: #Do we have a latex error in the log file?
89: my $logfilename = $texfile;
90: $logfilename =~ s/\.tex$/\.log/;
91: my $temporary_file=IO::File->new($logfilename) || die "Couldn't open file for reading: $!\n";
92: my @content_of_file = <$temporary_file>;
93: close $temporary_file;
94: my $body_log_file = join(' ',@content_of_file);
95: $logfilename =~ s/\.log$/\.html/;
96: $temporary_file = IO::File->new('>'.$logfilename);
97: print $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n";
98: if ($body_log_file=~m/!\s+Emergency stop/) {
99: #LaTeX failed to parse tex file
100: print "<h2>LaTeX could not successfully parse your tex file.</h2>";
101: print "It probably has errors in it.<br />";
102: my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
103: my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
104: if ($whereitbegins!=-1 and $whereitends!=-1) {
105: print "With very high probability this error occured in ".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)."<br /><br />";
106: }
107: print "Here are the error messages in the LaTeX log file</br><br />";
108: my $sygnal = 0;
109: for (my $i=0;$i<=$#content_of_file;$i++) {
110: if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {
111: $sygnal = 1;
112: }
113: if ($content_of_file[$i]=~m/Here is how much of/) {
114: $sygnal = 0;
115: }
116: if ($sygnal) {
117: print "$content_of_file[$i]<br />";
118: }
119: }
120: if ($advans_role) {
121: print "<b><big>The link to ";
122: $logfilename=~s/\/home\/httpd//;
123: print "<a href=\"$logfilename\">Your log file </a></big></b>";
124: print "\n";
125: #link tooriginal LaTeX file (included according Michael Hamlin desire)
126: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open file for reading: $!\n";
127: my @tex_content_of_file = <$tex_temporary_file>;
128: close $tex_temporary_file;
129: my $body_tex_file = join(' ',@tex_content_of_file);
130: $texfile =~ s/\.tex$/aaaaa\.html/;
131: $tex_temporary_file = IO::File->new('>'.$texfile);
132: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
133: print "<br /><br />";
134: print "<b><big>The link to ";
135: $texfile=~s/\/home\/httpd//;
136: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
137: print "\n";
138: }
139:
140: } elsif ($body_log_file=~m/<inserted text>/) {
141: my $whereitbegins = index $body_log_file,'<inserted text>';
142: print "You are running LaTeX in the <b>batch mode</b>.";
143: while ($whereitbegins != -1) {
144: my $tempobegin=$whereitbegins;
145: $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins;
146: my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$whereitbegins;
147: print "<br />It has found an error in".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)." <br /> and corrected it.\n";
148: 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";
149: $whereitbegins = index $body_log_file,'<inserted text>',$tempobegin+10;
150: }
151: $name_file =~ s/\.tex/\.dvi/;
152: my $new_name_file = $name_file;
153: $new_name_file =~ s/\.dvi/\.ps/;
154: my $comma = "dvips -Ppdf -G0 -o $new_name_file";
155: system("$comma $name_file 1>/dev/null 2>/dev/null");
156: if (-e $new_name_file) {
157: print "<h1>PDF output file (see link below)</h1>\n";
158: $new_name_file =~ m/^(.*)\./;
159: my $tempo_file = $1.'temporar.ps';
160: my $name_file = $1.'.pdf';
161: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
162: $comma = "psnup -2 -s1.0 $new_name_file";
163: system("$comma $tempo_file 1>/dev/null 2>/dev/null");
164: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
165: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
166: $comma = 'pstops -pletter "2:0+1(0.48w,0)"';
167: system("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null");
168: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
169: } else {
170: system("ps2pdf $new_name_file $name_file 1>/dev/null 2>/dev/null");
171: }
172: my $texlog = $texfile;
173: my $texaux = $texfile;
174: my $texdvi = $texfile;
175: my $texps = $texfile;
176: $texlog =~ s/\.tex/\.log/;
177: $texaux =~ s/\.tex/\.aux/;
178: $texdvi =~ s/\.tex/\.dvi/;
179: $texps =~ s/\.tex/\.ps/;
180: my @garb = ($texaux,$texdvi,$texps);
181: # unlink @garb;
182: unlink $duefile;
183: print "<a href=\"/prtspool/$name_file\">Your PDF document</a>";
184: if ($advans_role) {
185: print "<br /><br />";
186: print "<b><big>The link to ";
187: $logfilename=~s/\/home\/httpd//;
188: print "<a href=\"$logfilename\">Your log file </a></big></b>";
189: print "\n";
190: #link tooriginal LaTeX file (included according Michael Hamlin desire)
191: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open file for reading: $!\n";
192: my @tex_content_of_file = <$tex_temporary_file>;
193: close $tex_temporary_file;
194: my $body_tex_file = join(' ',@tex_content_of_file);
195: $texfile =~ s/\.tex$/aaaaa\.html/;
196: $tex_temporary_file = IO::File->new('>'.$texfile);
197: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
198: print "<br /><br />";
199: print "<b><big>The link to ";
200: $texfile=~s/\/home\/httpd//;
201: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
202: print "\n";
203: }
204: }
205: } else {
206: #LaTeX successfully parsed tex file
207: $name_file =~ s/\.tex/\.dvi/;
208: my $new_name_file = $name_file;
209: $new_name_file =~ s/\.dvi/\.ps/;
210: my $comma = "dvips -Ppdf -G0 -o $new_name_file";
211: system("$comma $name_file 1>/dev/null 2>/dev/null");
212: if (-e $new_name_file) {
213: print "<h1>Successfully created PDF output file (see link below)</h1>\n";
214: $new_name_file =~ m/^(.*)\./;
215: my $tempo_file = $1.'temporar.ps';
216: my $name_file = $1.'.pdf';
217: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
218: $comma = "psnup -2 -s1.0 $new_name_file";
219: system("$comma $tempo_file 1>/dev/null 2>/dev/null");
220: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
221: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
222: $comma = 'pstops -pletter "2:0+1(0.48w,0)"';
223: system("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null");
224: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
225: } else {
226: system("ps2pdf $new_name_file $name_file 1>/dev/null 2>/dev/null");
227: }
228: my $texlog = $texfile;
229: my $texaux = $texfile;
230: my $texdvi = $texfile;
231: my $texps = $texfile;
232: $texlog =~ s/\.tex/\.log/;
233: $texaux =~ s/\.tex/\.aux/;
234: $texdvi =~ s/\.tex/\.dvi/;
235: $texps =~ s/\.tex/\.ps/;
236: my @garb = ($texlog,$texaux,$texdvi,$texps);
237: # unlink @garb;
238: unlink $duefile;
239: print "<a href=\"/prtspool/$name_file\">Your PDF document</a>";
240: print "\n";
241: }
242: }
243: } else {
244: print "LaTeX file $texfile was not created successfully";
245: }
246:
247:
248:
249:
250:
251:
252:
253:
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