1: #!/usr/bin/perl
2: # CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc.
3: #
4: # $Id: printout.pl,v 1.40.2.1 2004/02/12 22:50:35 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 lib '/home/httpd/lib/perl';
30: use LONCAPA::loncgi();
31: use File::Path;
32: use IO::File;
33: use Image::Magick;
34:
35: my %origENV=%ENV;
36: if (! &LONCAPA::loncgi::check_cookie_and_load_env()) {
37: print <<END;
38: Content-type: text/html
39:
40: <html>
41: <head><title>Bad Cookie</title></head>
42: <body>
43: Your cookie information is incorrect.
44: </body>
45: </html>
46: END
47: return;
48: }
49:
50: print "Content-type: text/html\n\n";
51: print "<body bgcolor=\"#FFFFFF\">\n";
52:
53: my $identifier = $ENV{'QUERY_STRING'};
54: my $texfile = $ENV{'cgi.'.$identifier.'.file'};
55: my $laystyle = $ENV{'cgi.'.$identifier.'.layout'};
56: my $numberofcolumns = $ENV{'cgi.'.$identifier.'.numcol'};
57: my $selectionmade = $ENV{'cgi.'.$identifier.'.selection'};
58: my $tableofcontents = $ENV{'cgi.'.$identifier.'tableofcontents'};
59: my $tableofindex = $ENV{'cgi.'.$identifier.'tableofindex'};
60: my $advans_role = $ENV{'cgi.'.$identifier.'role'};
61:
62: my $figfile = $texfile;
63: $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;
64: my $duefile = $texfile;
65: $duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/;
66: #do we have figures?
67: if (-e $figfile) {
68: my $temporary_file=IO::File->new($figfile) || die "Couldn't open file for reading: $!\n";
69: my @content_of_file = <$temporary_file>;
70: close $temporary_file;
71: my $noteps;
72: foreach $not_eps (@content_of_file) {
73: if ($not_eps ne '') {
74: my $eps_f = $not_eps;
75: $eps_f =~ s/\.[^.]*$/\.eps/i;
76: $_ = $eps_f;
77: m/\/home\/httpd\/html\/res\/(.+)/;
78: $eps_f = '/home/httpd/prtspool/'.$1;
79: my $path=$eps_f;
80: $path=~s/\/([^\/]+)\.eps$//;
81: File::Path::mkpath($path,0,0777);
82: my $image = Image::Magick->new;
83: $not_eps =~ s/^\s+//;
84: $not_eps =~ s/\s+$//;
85: $status = $image->Read($not_eps);
86: if ($status) {print " $status ";}
87: $image->Set(page => '+100+200');
88: $status = $image->Write($eps_f);
89: if ($status) {print " $status ";}
90: #check is eps exist in prtspool
91: if(not -e $eps_f) {
92: for (my $i=0;$i<10000;$i++) {
93: if (-e $eps_f.'.'.$i) {
94: rename $eps_f.'.'.$i, $eps_f;
95: last;
96: }
97: }
98: }
99: }
100: }
101: }
102: #print "$texfile\n"; #name of the tex file for debugging only
103: if (-e $texfile) {
104: $texfile =~ m/^(.*)\/([^\/]+)$/;
105: my $name_file = $2;
106: my $path_file = $1.'/';
107: chdir $path_file;
108: system("latex $name_file 1>/dev/null 2>/dev/null");
109: if ($tableofcontents eq 'yes') {
110: system("latex $name_file 1>/dev/null 2>/dev/null");
111: } #to create table of contents
112: my $idxname=$name_file;
113: $idxname=~s/\.tex$/\.idx/;
114: if ($tableofindex eq 'yes') {
115: system("makeindex $idxname");
116: system("latex $name_file 1>/dev/null 2>/dev/null");
117: } #to create index
118: #Do we have a latex error in the log file?
119: my $logfilename = $texfile;
120: $logfilename =~ s/\.tex$/\.log/;
121: my $temporary_file=IO::File->new($logfilename) || die "Couldn't open file for reading: $!\n";
122: my @content_of_file = <$temporary_file>;
123: close $temporary_file;
124: my $body_log_file = join(' ',@content_of_file);
125: $logfilename =~ s/\.log$/\.html/;
126: $temporary_file = IO::File->new('>'.$logfilename);
127: print $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n";
128: if ($body_log_file=~m/!\s+Emergency stop/) {
129: #LaTeX failed to parse tex file
130: print "<h2>LaTeX could not successfully parse your tex file.</h2>";
131: print "It probably has errors in it.<br />";
132: my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
133: my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
134: if ($whereitbegins!=-1 and $whereitends!=-1) {
135: print "With very high probability this error occured in ".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)."<br /><br />";
136: }
137: print "Here are the error messages in the LaTeX log file</br><br />";
138: my $sygnal = 0;
139: for (my $i=0;$i<=$#content_of_file;$i++) {
140: if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {
141: $sygnal = 1;
142: }
143: if ($content_of_file[$i]=~m/Here is how much of/) {
144: $sygnal = 0;
145: }
146: if ($sygnal) {
147: print "$content_of_file[$i]<br />";
148: }
149: }
150: if ($advans_role) {
151: print "<b><big>The link to ";
152: $logfilename=~s/\/home\/httpd//;
153: print "<a href=\"$logfilename\">Your log file </a></big></b>";
154: print "\n";
155: #link tooriginal LaTeX file (included according Michael Hamlin desire)
156: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open file for reading: $!\n";
157: my @tex_content_of_file = <$tex_temporary_file>;
158: close $tex_temporary_file;
159: my $body_tex_file = join(' ',@tex_content_of_file);
160: $texfile =~ s/\.tex$/aaaaa\.html/;
161: $tex_temporary_file = IO::File->new('>'.$texfile);
162: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
163: print "<br /><br />";
164: print "<b><big>The link to ";
165: $texfile=~s/\/home\/httpd//;
166: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
167: print "\n";
168: }
169:
170: } elsif ($body_log_file=~m/<inserted text>/) {
171: my $whereitbegins = index $body_log_file,'<inserted text>';
172: print "You are running LaTeX in the <b>batch mode</b>.";
173: while ($whereitbegins != -1) {
174: my $tempobegin=$whereitbegins;
175: $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins;
176: my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$whereitbegins;
177: print "<br />It has found an error in".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)." <br /> and corrected it.\n";
178: 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";
179: $whereitbegins = index $body_log_file,'<inserted text>',$tempobegin+10;
180: }
181: $name_file =~ s/\.tex/\.dvi/;
182: my $new_name_file = $name_file;
183: $new_name_file =~ s/\.dvi/\.ps/;
184: my $comma = "dvips -Ppdf -G0 -o $new_name_file";
185: system("$comma $name_file 1>/dev/null 2>/dev/null");
186: if (-e $new_name_file) {
187: print "<h1>PDF output file (see link below)</h1>\n";
188: $new_name_file =~ m/^(.*)\./;
189: my $tempo_file = $1.'temporar.ps';
190: my $name_file = $1.'.pdf';
191: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
192: $comma = "psnup -2 -s1.0 $new_name_file";
193: system("$comma $tempo_file 1>/dev/null 2>/dev/null");
194: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
195: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
196: $comma = 'pstops -pletter "2:0+1(0.48w,0)"';
197: system("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null");
198: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
199: } else {
200: system("ps2pdf $new_name_file $name_file 1>/dev/null 2>/dev/null");
201: }
202: my $texlog = $texfile;
203: my $texaux = $texfile;
204: my $texdvi = $texfile;
205: my $texps = $texfile;
206: $texlog =~ s/\.tex/\.log/;
207: $texaux =~ s/\.tex/\.aux/;
208: $texdvi =~ s/\.tex/\.dvi/;
209: $texps =~ s/\.tex/\.ps/;
210: my @garb = ($texaux,$texdvi,$texps);
211: # unlink @garb;
212: unlink $duefile;
213: print "<a href=\"/prtspool/$name_file\">Your PDF document</a>";
214: if ($advans_role) {
215: print "<br /><br />";
216: print "<b><big>The link to ";
217: $logfilename=~s/\/home\/httpd//;
218: print "<a href=\"$logfilename\">Your log file </a></big></b>";
219: print "\n";
220: #link tooriginal LaTeX file (included according Michael Hamlin desire)
221: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open file for reading: $!\n";
222: my @tex_content_of_file = <$tex_temporary_file>;
223: close $tex_temporary_file;
224: my $body_tex_file = join(' ',@tex_content_of_file);
225: $texfile =~ s/\.tex$/aaaaa\.html/;
226: $tex_temporary_file = IO::File->new('>'.$texfile);
227: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
228: print "<br /><br />";
229: print "<b><big>The link to ";
230: $texfile=~s/\/home\/httpd//;
231: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
232: print "\n";
233: }
234: }
235: } else {
236: #LaTeX successfully parsed tex file
237: $name_file =~ s/\.tex/\.dvi/;
238: my $new_name_file = $name_file;
239: $new_name_file =~ s/\.dvi/\.ps/;
240: my $comma = "dvips -Ppdf -G0 -o $new_name_file";
241: system("$comma $name_file 1>/dev/null 2>/dev/null");
242: if (-e $new_name_file) {
243: print "<h1>Successfully created PDF output file (see link below)</h1>\n";
244: $new_name_file =~ m/^(.*)\./;
245: my $tempo_file = $1.'temporar.ps';
246: my $name_file = $1.'.pdf';
247: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
248: $comma = "psnup -2 -s1.0 $new_name_file";
249: system("$comma $tempo_file 1>/dev/null 2>/dev/null");
250: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
251: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
252: $comma = 'pstops -pletter "2:0+1(0.48w,0)"';
253: system("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null");
254: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
255: } else {
256: system("ps2pdf $new_name_file $name_file 1>/dev/null 2>/dev/null");
257: }
258: my $texlog = $texfile;
259: my $texaux = $texfile;
260: my $texdvi = $texfile;
261: my $texps = $texfile;
262: $texlog =~ s/\.tex/\.log/;
263: $texaux =~ s/\.tex/\.aux/;
264: $texdvi =~ s/\.tex/\.dvi/;
265: $texps =~ s/\.tex/\.ps/;
266: my @garb = ($texlog,$texaux,$texdvi,$texps);
267: # unlink @garb;
268: unlink $duefile;
269: print "<a href=\"/prtspool/$name_file\">Your PDF document</a>";
270: print "\n";
271: }
272: }
273: } else {
274: print "LaTeX file $texfile was not created successfully";
275: }
276: #got what we needed reset ENV in case it is to big for system
277: %ENV=%origENV;
278:
279:
280:
281:
282:
283:
284:
285:
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