1: #!/usr/bin/perl
2: # CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc.
3: #
4: # $Id: printout.pl,v 1.42 2004/02/03 00:02:15 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: if (! &LONCAPA::loncgi::check_cookie_and_load_env()) {
36: print <<END;
37: Content-type: text/html
38:
39: <html>
40: <head><title>Bad Cookie</title></head>
41: <body>
42: Your cookie information is incorrect.
43: </body>
44: </html>
45: END
46: return;
47: }
48:
49: print "Content-type: text/html\n\n";
50: print "<body bgcolor=\"#FFFFFF\">\n";
51:
52: my $identifier = $ENV{'QUERY_STRING'};
53: my $texfile = $ENV{'cgi.'.$identifier.'.file'};
54: my $laystyle = $ENV{'cgi.'.$identifier.'.layout'};
55: my $numberofcolumns = $ENV{'cgi.'.$identifier.'.numcol'};
56: my $selectionmade = $ENV{'cgi.'.$identifier.'.selection'};
57: my $tableofcontents = $ENV{'cgi.'.$identifier.'tableofcontents'};
58: my $tableofindex = $ENV{'cgi.'.$identifier.'tableofindex'};
59: my $advans_role = $ENV{'cgi.'.$identifier.'role'};
60:
61: my $figfile = $texfile;
62: $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;
63: my $duefile = $texfile;
64: $duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/;
65: #do we have figures?
66: if (-e $figfile) {
67: my %done_conversion;
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: $not_eps=~s|\/\.\/|\/|g;
75: my $eps_f = $not_eps;
76: $eps_f =~ s/\.[^.]*$/\.eps/i;
77: if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) {
78: $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/;
79: $eps_f = '/home/httpd/prtspool/'.$eps_f;
80: } else {
81: $eps_f=~m/\/home\/httpd\/html\/res\/(.+)/;
82: $eps_f = '/home/httpd/prtspool/'.$1;
83: }
84: my $path=$eps_f;
85: $path=~s/\/([^\/]+)\.eps$//;
86: File::Path::mkpath($path,0,0777);
87: my $image = Image::Magick->new;
88: $not_eps =~ s/^\s+//;
89: $not_eps =~ s/\s+$//;
90: if ( exists($done_conversion{$not_eps})) {
91: next;
92: }
93: $done_conversion{$not_eps}=1;
94: $status = $image->Read($not_eps);
95: if ($status) {print " $status ";}
96: $image->Set(page => '+100+200');
97: $status = $image->Write($eps_f);
98: if ($status) {print " $status ";}
99: #check is eps exist in prtspool
100: if(not -e $eps_f) {
101: for (my $i=0;$i<10000;$i++) {
102: if (-e $eps_f.'.'.$i) {
103: rename $eps_f.'.'.$i, $eps_f;
104: last;
105: }
106: }
107: }
108: }
109: }
110: }
111: #print "$texfile\n"; #name of the tex file for debugging only
112: if (-e $texfile) {
113: $texfile =~ m/^(.*)\/([^\/]+)$/;
114: my $name_file = $2;
115: my $path_file = $1.'/';
116: chdir $path_file;
117: system("latex $name_file 1>/dev/null 2>/dev/null");
118: if ($tableofcontents eq 'yes') {
119: system("latex $name_file 1>/dev/null 2>/dev/null");
120: } #to create table of contents
121: my $idxname=$name_file;
122: $idxname=~s/\.tex$/\.idx/;
123: if ($tableofindex eq 'yes') {
124: system("makeindex $idxname");
125: system("latex $name_file 1>/dev/null 2>/dev/null");
126: } #to create index
127: #Do we have a latex error in the log file?
128: my $logfilename = $texfile;
129: $logfilename =~ s/\.tex$/\.log/;
130: my $temporary_file=IO::File->new($logfilename) || die "Couldn't open file for reading: $!\n";
131: my @content_of_file = <$temporary_file>;
132: close $temporary_file;
133: my $body_log_file = join(' ',@content_of_file);
134: $logfilename =~ s/\.log$/\.html/;
135: $temporary_file = IO::File->new('>'.$logfilename);
136: print $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n";
137: if ($body_log_file=~m/!\s+Emergency stop/) {
138: #LaTeX failed to parse tex file
139: print "<h2>LaTeX could not successfully parse your tex file.</h2>";
140: print "It probably has errors in it.<br />";
141: my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
142: my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
143: if ($whereitbegins!=-1 and $whereitends!=-1) {
144: print "With very high probability this error occured in ".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)."<br /><br />";
145: }
146: print "Here are the error messages in the LaTeX log file</br><br />";
147: my $sygnal = 0;
148: for (my $i=0;$i<=$#content_of_file;$i++) {
149: if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {
150: $sygnal = 1;
151: }
152: if ($content_of_file[$i]=~m/Here is how much of/) {
153: $sygnal = 0;
154: }
155: if ($sygnal) {
156: print "$content_of_file[$i]<br />";
157: }
158: }
159: if ($advans_role) {
160: print "<b><big>The link to ";
161: $logfilename=~s/\/home\/httpd//;
162: print "<a href=\"$logfilename\">Your log file </a></big></b>";
163: print "\n";
164: #link tooriginal LaTeX file (included according Michael Hamlin desire)
165: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open file for reading: $!\n";
166: my @tex_content_of_file = <$tex_temporary_file>;
167: close $tex_temporary_file;
168: my $body_tex_file = join(' ',@tex_content_of_file);
169: $texfile =~ s/\.tex$/aaaaa\.html/;
170: $tex_temporary_file = IO::File->new('>'.$texfile);
171: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
172: print "<br /><br />";
173: print "<b><big>The link to ";
174: $texfile=~s/\/home\/httpd//;
175: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
176: print "\n";
177: }
178:
179: } elsif ($body_log_file=~m/<inserted text>/) {
180: my $whereitbegins = index $body_log_file,'<inserted text>';
181: print "You are running LaTeX in the <b>batch mode</b>.";
182: while ($whereitbegins != -1) {
183: my $tempobegin=$whereitbegins;
184: $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins;
185: my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$whereitbegins;
186: print "<br />It has found an error in".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)." <br /> and corrected it.\n";
187: 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";
188: $whereitbegins = index $body_log_file,'<inserted text>',$tempobegin+10;
189: }
190: $name_file =~ s/\.tex/\.dvi/;
191: my $new_name_file = $name_file;
192: $new_name_file =~ s/\.dvi/\.ps/;
193: my $comma = "dvips -Ppdf -G0 -o $new_name_file";
194: system("$comma $name_file 1>/dev/null 2>/dev/null");
195: if (-e $new_name_file) {
196: print "<h1>PDF output file (see link below)</h1>\n";
197: $new_name_file =~ m/^(.*)\./;
198: my $tempo_file = $1.'temporar.ps';
199: my $name_file = $1.'.pdf';
200: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
201: $comma = "psnup -2 -s1.0 $new_name_file";
202: system("$comma $tempo_file 1>/dev/null 2>/dev/null");
203: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
204: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
205: $comma = 'pstops -pletter "2:0+1(0.48w,0)"';
206: system("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null");
207: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
208: } else {
209: system("ps2pdf $new_name_file $name_file 1>/dev/null 2>/dev/null");
210: }
211: my $texlog = $texfile;
212: my $texaux = $texfile;
213: my $texdvi = $texfile;
214: my $texps = $texfile;
215: $texlog =~ s/\.tex/\.log/;
216: $texaux =~ s/\.tex/\.aux/;
217: $texdvi =~ s/\.tex/\.dvi/;
218: $texps =~ s/\.tex/\.ps/;
219: my @garb = ($texaux,$texdvi,$texps);
220: # unlink @garb;
221: unlink $duefile;
222: print "<a href=\"/prtspool/$name_file\">Your PDF document</a>";
223: if ($advans_role) {
224: print "<br /><br />";
225: print "<b><big>The link to ";
226: $logfilename=~s/\/home\/httpd//;
227: print "<a href=\"$logfilename\">Your log file </a></big></b>";
228: print "\n";
229: #link tooriginal LaTeX file (included according Michael Hamlin desire)
230: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open file for reading: $!\n";
231: my @tex_content_of_file = <$tex_temporary_file>;
232: close $tex_temporary_file;
233: my $body_tex_file = join(' ',@tex_content_of_file);
234: $texfile =~ s/\.tex$/aaaaa\.html/;
235: $tex_temporary_file = IO::File->new('>'.$texfile);
236: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
237: print "<br /><br />";
238: print "<b><big>The link to ";
239: $texfile=~s/\/home\/httpd//;
240: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
241: print "\n";
242: }
243: }
244: } else {
245: #LaTeX successfully parsed tex file
246: $name_file =~ s/\.tex/\.dvi/;
247: my $new_name_file = $name_file;
248: $new_name_file =~ s/\.dvi/\.ps/;
249: my $comma = "dvips -Ppdf -G0 -o $new_name_file";
250: system("$comma $name_file 1>/dev/null 2>/dev/null");
251: if (-e $new_name_file) {
252: print "<h1>Successfully created PDF output file (see link below)</h1>\n";
253: $new_name_file =~ m/^(.*)\./;
254: my $tempo_file = $1.'temporar.ps';
255: my $name_file = $1.'.pdf';
256: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
257: $comma = "psnup -2 -s1.0 $new_name_file";
258: system("$comma $tempo_file 1>/dev/null 2>/dev/null");
259: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
260: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
261: $comma = 'pstops -pletter "2:0+1(0.48w,0)"';
262: system("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null");
263: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
264: } else {
265: system("ps2pdf $new_name_file $name_file 1>/dev/null 2>/dev/null");
266: }
267: my $texlog = $texfile;
268: my $texaux = $texfile;
269: my $texdvi = $texfile;
270: my $texps = $texfile;
271: $texlog =~ s/\.tex/\.log/;
272: $texaux =~ s/\.tex/\.aux/;
273: $texdvi =~ s/\.tex/\.dvi/;
274: $texps =~ s/\.tex/\.ps/;
275: my @garb = ($texlog,$texaux,$texdvi,$texps);
276: # unlink @garb;
277: unlink $duefile;
278: print "<a href=\"/prtspool/$name_file\">Your PDF document</a>";
279: print "\n";
280: }
281: }
282: } else {
283: print "LaTeX file $texfile was not created successfully";
284: }
285:
286:
287:
288:
289:
290:
291:
292:
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