1: #!/usr/bin/perl
2: # CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc.
3: #
4: # $Id: printout.pl,v 1.40 2003/10/20 18:34:20 sakharuk 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 $temporary_file=IO::File->new($figfile) || die "Couldn't open file for reading: $!\n";
68: my @content_of_file = <$temporary_file>;
69: close $temporary_file;
70: my $noteps;
71: foreach $not_eps (@content_of_file) {
72: if ($not_eps ne '') {
73: my $eps_f = $not_eps;
74: $eps_f =~ s/\.[^.]*$/\.eps/i;
75: $_ = $eps_f;
76: m/\/home\/httpd\/html\/res\/(.+)/;
77: $eps_f = '/home/httpd/prtspool/'.$1;
78: my $path=$eps_f;
79: $path=~s/\/([^\/]+)\.eps$//;
80: File::Path::mkpath($path,0,0777);
81: my $image = Image::Magick->new;
82: $not_eps =~ s/^\s+//;
83: $not_eps =~ s/\s+$//;
84: $status = $image->Read($not_eps);
85: if ($status) {print " $status ";}
86: $image->Set(page => '+100+200');
87: $status = $image->Write($eps_f);
88: if ($status) {print " $status ";}
89: #check is eps exist in prtspool
90: if(not -e $eps_f) {
91: for (my $i=0;$i<10000;$i++) {
92: if (-e $eps_f.'.'.$i) {
93: rename $eps_f.'.'.$i, $eps_f;
94: last;
95: }
96: }
97: }
98: }
99: }
100: }
101: #print "$texfile\n"; #name of the tex file for debugging only
102: if (-e $texfile) {
103: $texfile =~ m/^(.*)\/([^\/]+)$/;
104: my $name_file = $2;
105: my $path_file = $1.'/';
106: chdir $path_file;
107: system("latex $name_file 1>/dev/null 2>/dev/null");
108: if ($tableofcontents eq 'yes') {
109: system("latex $name_file 1>/dev/null 2>/dev/null");
110: } #to create table of contents
111: my $idxname=$name_file;
112: $idxname=~s/\.tex$/\.idx/;
113: if ($tableofindex eq 'yes') {
114: system("makeindex $idxname");
115: system("latex $name_file 1>/dev/null 2>/dev/null");
116: } #to create index
117: #Do we have a latex error in the log file?
118: my $logfilename = $texfile;
119: $logfilename =~ s/\.tex$/\.log/;
120: my $temporary_file=IO::File->new($logfilename) || die "Couldn't open file for reading: $!\n";
121: my @content_of_file = <$temporary_file>;
122: close $temporary_file;
123: my $body_log_file = join(' ',@content_of_file);
124: $logfilename =~ s/\.log$/\.html/;
125: $temporary_file = IO::File->new('>'.$logfilename);
126: print $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n";
127: if ($body_log_file=~m/!\s+Emergency stop/) {
128: #LaTeX failed to parse tex file
129: print "<h2>LaTeX could not successfully parse your tex file.</h2>";
130: print "It probably has errors in it.<br />";
131: my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
132: my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
133: if ($whereitbegins!=-1 and $whereitends!=-1) {
134: print "With very high probability this error occured in ".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)."<br /><br />";
135: }
136: print "Here are the error messages in the LaTeX log file</br><br />";
137: my $sygnal = 0;
138: for (my $i=0;$i<=$#content_of_file;$i++) {
139: if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {
140: $sygnal = 1;
141: }
142: if ($content_of_file[$i]=~m/Here is how much of/) {
143: $sygnal = 0;
144: }
145: if ($sygnal) {
146: print "$content_of_file[$i]<br />";
147: }
148: }
149: if ($advans_role) {
150: print "<b><big>The link to ";
151: $logfilename=~s/\/home\/httpd//;
152: print "<a href=\"$logfilename\">Your log file </a></big></b>";
153: print "\n";
154: #link tooriginal LaTeX file (included according Michael Hamlin desire)
155: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open file for reading: $!\n";
156: my @tex_content_of_file = <$tex_temporary_file>;
157: close $tex_temporary_file;
158: my $body_tex_file = join(' ',@tex_content_of_file);
159: $texfile =~ s/\.tex$/aaaaa\.html/;
160: $tex_temporary_file = IO::File->new('>'.$texfile);
161: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
162: print "<br /><br />";
163: print "<b><big>The link to ";
164: $texfile=~s/\/home\/httpd//;
165: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
166: print "\n";
167: }
168:
169: } elsif ($body_log_file=~m/<inserted text>/) {
170: my $whereitbegins = index $body_log_file,'<inserted text>';
171: print "You are running LaTeX in the <b>batch mode</b>.";
172: while ($whereitbegins != -1) {
173: my $tempobegin=$whereitbegins;
174: $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins;
175: my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$whereitbegins;
176: print "<br />It has found an error in".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)." <br /> and corrected it.\n";
177: 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";
178: $whereitbegins = index $body_log_file,'<inserted text>',$tempobegin+10;
179: }
180: $name_file =~ s/\.tex/\.dvi/;
181: my $new_name_file = $name_file;
182: $new_name_file =~ s/\.dvi/\.ps/;
183: my $comma = "dvips -Ppdf -G0 -o $new_name_file";
184: system("$comma $name_file 1>/dev/null 2>/dev/null");
185: if (-e $new_name_file) {
186: print "<h1>PDF output file (see link below)</h1>\n";
187: $new_name_file =~ m/^(.*)\./;
188: my $tempo_file = $1.'temporar.ps';
189: my $name_file = $1.'.pdf';
190: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
191: $comma = "psnup -2 -s1.0 $new_name_file";
192: system("$comma $tempo_file 1>/dev/null 2>/dev/null");
193: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
194: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
195: $comma = 'pstops -pletter "2:0+1(0.48w,0)"';
196: system("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null");
197: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
198: } else {
199: system("ps2pdf $new_name_file $name_file 1>/dev/null 2>/dev/null");
200: }
201: my $texlog = $texfile;
202: my $texaux = $texfile;
203: my $texdvi = $texfile;
204: my $texps = $texfile;
205: $texlog =~ s/\.tex/\.log/;
206: $texaux =~ s/\.tex/\.aux/;
207: $texdvi =~ s/\.tex/\.dvi/;
208: $texps =~ s/\.tex/\.ps/;
209: my @garb = ($texaux,$texdvi,$texps);
210: # unlink @garb;
211: unlink $duefile;
212: print "<a href=\"/prtspool/$name_file\">Your PDF document</a>";
213: if ($advans_role) {
214: print "<br /><br />";
215: print "<b><big>The link to ";
216: $logfilename=~s/\/home\/httpd//;
217: print "<a href=\"$logfilename\">Your log file </a></big></b>";
218: print "\n";
219: #link tooriginal LaTeX file (included according Michael Hamlin desire)
220: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open file for reading: $!\n";
221: my @tex_content_of_file = <$tex_temporary_file>;
222: close $tex_temporary_file;
223: my $body_tex_file = join(' ',@tex_content_of_file);
224: $texfile =~ s/\.tex$/aaaaa\.html/;
225: $tex_temporary_file = IO::File->new('>'.$texfile);
226: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
227: print "<br /><br />";
228: print "<b><big>The link to ";
229: $texfile=~s/\/home\/httpd//;
230: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
231: print "\n";
232: }
233: }
234: } else {
235: #LaTeX successfully parsed tex file
236: $name_file =~ s/\.tex/\.dvi/;
237: my $new_name_file = $name_file;
238: $new_name_file =~ s/\.dvi/\.ps/;
239: my $comma = "dvips -Ppdf -G0 -o $new_name_file";
240: system("$comma $name_file 1>/dev/null 2>/dev/null");
241: if (-e $new_name_file) {
242: print "<h1>Successfully created PDF output file (see link below)</h1>\n";
243: $new_name_file =~ m/^(.*)\./;
244: my $tempo_file = $1.'temporar.ps';
245: my $name_file = $1.'.pdf';
246: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
247: $comma = "psnup -2 -s1.0 $new_name_file";
248: system("$comma $tempo_file 1>/dev/null 2>/dev/null");
249: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
250: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
251: $comma = 'pstops -pletter "2:0+1(0.48w,0)"';
252: system("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null");
253: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
254: } else {
255: system("ps2pdf $new_name_file $name_file 1>/dev/null 2>/dev/null");
256: }
257: my $texlog = $texfile;
258: my $texaux = $texfile;
259: my $texdvi = $texfile;
260: my $texps = $texfile;
261: $texlog =~ s/\.tex/\.log/;
262: $texaux =~ s/\.tex/\.aux/;
263: $texdvi =~ s/\.tex/\.dvi/;
264: $texps =~ s/\.tex/\.ps/;
265: my @garb = ($texlog,$texaux,$texdvi,$texps);
266: # unlink @garb;
267: unlink $duefile;
268: print "<a href=\"/prtspool/$name_file\">Your PDF document</a>";
269: print "\n";
270: }
271: }
272: } else {
273: print "LaTeX file $texfile was not created successfully";
274: }
275:
276:
277:
278:
279:
280:
281:
282:
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