1: #!/usr/bin/perl
2: # CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc.
3: #
4: # $Id: printout.pl,v 1.46 2004/02/11 00:19:49 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 Time::Local;
31: use LONCAPA::loncgi();
32: use File::Path;
33: use IO::File;
34: use Image::Magick;
35:
36: my %origENV=%ENV;
37: if (! &LONCAPA::loncgi::check_cookie_and_load_env()) {
38: print <<END;
39: Content-type: text/html
40:
41: <html>
42: <head><title>Bad Cookie</title></head>
43: <body>
44: Your cookie information is incorrect.
45: </body>
46: </html>
47: END
48: return;
49: }
50:
51: print "Content-type: text/html\n\n";
52: print "<body bgcolor=\"#FFFFFF\">\n";
53:
54: my $identifier = $ENV{'QUERY_STRING'};
55: my $texfile = $ENV{'cgi.'.$identifier.'.file'};
56: my $laystyle = $ENV{'cgi.'.$identifier.'.layout'};
57: my $numberofcolumns = $ENV{'cgi.'.$identifier.'.numcol'};
58: my $selectionmade = $ENV{'cgi.'.$identifier.'.selection'};
59: my $tableofcontents = $ENV{'cgi.'.$identifier.'tableofcontents'};
60: my $tableofindex = $ENV{'cgi.'.$identifier.'tableofindex'};
61: my $advans_role = $ENV{'cgi.'.$identifier.'role'};
62: my $back_ref = $ENV{'cgi.'.$identifier.'backref'};
63: my $number_of_files = $ENV{'cgi.'.$identifier.'numberoffiles'}+1;
64: my $student_names = $ENV{'cgi.'.$identifier.'studentnames'};
65:
66: my @names_pack=();
67: if ($student_names=~/_END_/) {
68: @names_pack=split(/_ENDPERSON_/,$student_names);
69: }
70: #got what we needed reset ENV in case it is to big for system
71: %ENV=%origENV;
72:
73: my $figfile = $texfile;
74: $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;
75: my $duefile = $texfile;
76: $duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/;
77: #do we have figures?
78: if (-e $figfile) {
79: my %done_conversion;
80: my $temporary_file=IO::File->new($figfile) || die "Couldn't open file for reading: $!\n";
81: my @content_of_file = <$temporary_file>;
82: close $temporary_file;
83: my $noteps;
84: &Create_StatWin ('Starting eps pictures creation', 'Pictires Status window');
85: foreach $not_eps (@content_of_file) {
86: if ($not_eps ne '') {
87: my $status_statement='EPS picture for '.$not_eps;
88: &Update_StaWin ($status_statement);
89: $not_eps=~s|\/\.\/|\/|g;
90: my $eps_f = $not_eps;
91: $eps_f =~ s/\.[^.]*$/\.eps/i;
92: if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) {
93: $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/;
94: $eps_f = '/home/httpd/prtspool/'.$eps_f;
95: } else {
96: $eps_f=~m/\/home\/httpd\/html\/res\/(.+)/;
97: $eps_f = '/home/httpd/prtspool/'.$1;
98: }
99: my $path=$eps_f;
100: $path=~s/\/([^\/]+)\.eps$//;
101: File::Path::mkpath($path,0,0777);
102: my $image = Image::Magick->new;
103: $not_eps =~ s/^\s+//;
104: $not_eps =~ s/\s+$//;
105: if ( exists($done_conversion{$not_eps})) {
106: next;
107: }
108: $done_conversion{$not_eps}=1;
109: $status = $image->Read($not_eps);
110: if ($status) {print " $status ";}
111: $image->Set(page => '+100+200');
112: $status = $image->Write($eps_f);
113: if ($status) {print " $status ";}
114: #check is eps exist in prtspool
115: if(not -e $eps_f) {
116: for (my $i=0;$i<10000;$i++) {
117: if (-e $eps_f.'.'.$i) {
118: rename $eps_f.'.'.$i, $eps_f;
119: last;
120: }
121: }
122: }
123: }
124: }
125: &Close_StatWin();
126: }
127: #print "$texfile\n"; #name of the tex file for debugging only
128: my @texfile=($texfile);
129: if ($number_of_files>1) {
130: for (my $i=1;$i<=$number_of_files-1;$i++) {
131: my $new_texfile=$texfile;
132: $new_texfile=~s/\.tex/_add$i\.tex/;
133: push @texfile,$new_texfile;
134: }
135: }
136: my $ind=-1;
137: &Create_StatWin ('Starting PDF production for students', 'PDF Status window');
138: foreach $texfile (@texfile) {
139: my $final_statement="<b>Link to your PDF document:</b> ";
140: my $status_statement='PDF document for ';
141: if ($number_of_files>1) {
142: $ind++;
143: my @stud_info=split(/_END_/,$names_pack[$ind]);
144: my @tempo_array=split(/:/,$stud_info[0]);
145: $final_statement='Link to PDF document for <b>'.$tempo_array[3].'</b> ';
146: $status_statement.=$tempo_array[3];
147: if ($#stud_info>0) {
148: @tempo_array=split(/:/,$stud_info[-1]);
149: $final_statement.='- <b>'.$tempo_array[3].':</b> ';
150: $status_statement.=' - '.$tempo_array[3];
151: }
152: }
153: &Update_StaWin ($status_statement);
154: if (-e $texfile) {
155: $texfile =~ m/^(.*)\/([^\/]+)$/;
156: my $name_file = $2;
157: my $path_file = $1.'/';
158: chdir $path_file;
159: system("latex $name_file 1>/dev/null 2>/dev/null");
160: if ($tableofcontents eq 'yes') {
161: system("latex $name_file 1>/dev/null 2>/dev/null");
162: } #to create table of contents
163: my $idxname=$name_file;
164: $idxname=~s/\.tex$/\.idx/;
165: if ($tableofindex eq 'yes') {
166: system("makeindex $idxname");
167: system("latex $name_file 1>/dev/null 2>/dev/null");
168: } #to create index
169: #Do we have a latex error in the log file?
170: my $logfilename = $texfile;
171: $logfilename =~ s/\.tex$/\.log/;
172: my $temporary_file=IO::File->new($logfilename) || die "Couldn't open file for reading: $!\n";
173: my @content_of_file = <$temporary_file>;
174: close $temporary_file;
175: my $body_log_file = join(' ',@content_of_file);
176: $logfilename =~ s/\.log$/\.html/;
177: $temporary_file = IO::File->new('>'.$logfilename);
178: print $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n";
179: if ($body_log_file=~m/!\s+Emergency stop/) {
180: #LaTeX failed to parse tex file
181: print "<h2>LaTeX could not successfully parse your tex file.</h2>";
182: print "It probably has errors in it.<br />";
183: my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
184: my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
185: if ($whereitbegins!=-1 and $whereitends!=-1) {
186: print "With very high probability this error occured in ".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)."<br /><br />";
187: }
188: print "Here are the error messages in the LaTeX log file</br><br />";
189: my $sygnal = 0;
190: for (my $i=0;$i<=$#content_of_file;$i++) {
191: if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {
192: $sygnal = 1;
193: }
194: if ($content_of_file[$i]=~m/Here is how much of/) {
195: $sygnal = 0;
196: }
197: if ($sygnal) {
198: print "$content_of_file[$i]<br />";
199: }
200: }
201: if ($advans_role) {
202: print "<b><big>The link to ";
203: $logfilename=~s/\/home\/httpd//;
204: print "<a href=\"$logfilename\">Your log file </a></big></b>";
205: print "\n";
206: #link tooriginal LaTeX file (included according Michael Hamlin desire)
207: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open file for reading: $!\n";
208: my @tex_content_of_file = <$tex_temporary_file>;
209: close $tex_temporary_file;
210: my $body_tex_file = join(' ',@tex_content_of_file);
211: $texfile =~ s/\.tex$/aaaaa\.html/;
212: $tex_temporary_file = IO::File->new('>'.$texfile);
213: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
214: print "<br /><br />";
215: print "<b><big>The link to ";
216: $texfile=~s/\/home\/httpd//;
217: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
218: print "\n";
219: }
220:
221: } elsif ($body_log_file=~m/<inserted text>/) {
222: my $whereitbegins = index $body_log_file,'<inserted text>';
223: print "You are running LaTeX in the <b>batch mode</b>.";
224: while ($whereitbegins != -1) {
225: my $tempobegin=$whereitbegins;
226: $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins;
227: my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$whereitbegins;
228: print "<br />It has found an error in".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)." <br /> and corrected it.\n";
229: 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";
230: $whereitbegins = index $body_log_file,'<inserted text>',$tempobegin+10;
231: }
232: $name_file =~ s/\.tex/\.dvi/;
233: my $new_name_file = $name_file;
234: $new_name_file =~ s/\.dvi/\.ps/;
235: my $comma = "dvips -Ppdf -G0 -o $new_name_file";
236: system("$comma $name_file 1>/dev/null 2>/dev/null");
237: if (-e $new_name_file) {
238: print "<h1>PDF output file (see link below)</h1>\n";
239: $new_name_file =~ m/^(.*)\./;
240: my $tempo_file = $1.'temporar.ps';
241: my $name_file = $1.'.pdf';
242: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
243: $comma = "psnup -2 -s1.0 $new_name_file";
244: system("$comma $tempo_file 1>/dev/null 2>/dev/null");
245: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
246: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
247: $comma = 'pstops -pletter "2:0+1(0.48w,0)"';
248: system("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null");
249: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
250: } else {
251: system("ps2pdf $new_name_file $name_file 1>/dev/null 2>/dev/null");
252: }
253: my $texlog = $texfile;
254: my $texaux = $texfile;
255: my $texdvi = $texfile;
256: my $texps = $texfile;
257: $texlog =~ s/\.tex/\.log/;
258: $texaux =~ s/\.tex/\.aux/;
259: $texdvi =~ s/\.tex/\.dvi/;
260: $texps =~ s/\.tex/\.ps/;
261: my @garb = ($texaux,$texdvi,$texps);
262: # unlink @garb;
263: unlink $duefile;
264: print "<a href=\"/prtspool/$name_file\">Your PDF document</a>";
265: if ($advans_role) {
266: print "<br /><br />";
267: print "<b><big>The link to ";
268: $logfilename=~s/\/home\/httpd//;
269: print "<a href=\"$logfilename\">Your log file </a></big></b>";
270: print "\n";
271: #link tooriginal LaTeX file (included according Michael Hamlin desire)
272: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open file for reading: $!\n";
273: my @tex_content_of_file = <$tex_temporary_file>;
274: close $tex_temporary_file;
275: my $body_tex_file = join(' ',@tex_content_of_file);
276: $texfile =~ s/\.tex$/aaaaa\.html/;
277: $tex_temporary_file = IO::File->new('>'.$texfile);
278: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
279: print "<br /><br />";
280: print "<b><big>The link to ";
281: $texfile=~s/\/home\/httpd//;
282: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
283: print "\n";
284: }
285: }
286: } else {
287: #LaTeX successfully parsed tex file
288: $name_file =~ s/\.tex/\.dvi/;
289: my $new_name_file = $name_file;
290: $new_name_file =~ s/\.dvi/\.ps/;
291: my $comma = "dvips -Ppdf -G0 -o $new_name_file";
292: system("$comma $name_file 1>/dev/null 2>/dev/null");
293: if (-e $new_name_file) {
294: print "<br />$final_statement ";
295: $new_name_file =~ m/^(.*)\./;
296: my $tempo_file = $1.'temporar.ps';
297: my $name_file = $1.'.pdf';
298: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
299: $comma = "psnup -2 -s1.0 $new_name_file";
300: system("$comma $tempo_file 1>/dev/null 2>/dev/null");
301: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
302: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
303: $comma = 'pstops -pletter "2:0+1(0.48w,0)"';
304: system("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null");
305: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
306: } else {
307: system("ps2pdf $new_name_file $name_file 1>/dev/null 2>/dev/null");
308: }
309: my $texlog = $texfile;
310: my $texaux = $texfile;
311: my $texdvi = $texfile;
312: my $texps = $texfile;
313: $texlog =~ s/\.tex/\.log/;
314: $texaux =~ s/\.tex/\.aux/;
315: $texdvi =~ s/\.tex/\.dvi/;
316: $texps =~ s/\.tex/\.ps/;
317: my @garb = ($texlog,$texaux,$texdvi,$texps);
318: # unlink @garb;
319: unlink $duefile;
320: print "<a href=\"/prtspool/$name_file\">Your PDF document</a>";
321: print "\n";
322: }
323: }
324: } else {
325: print "LaTeX file $texfile was not created successfully";
326: }
327: }
328: print "<br />";
329: if ($number_of_files>1) {
330: my $zipfile=$texfile[0];
331: $zipfile=~s/\.tex/\.zip/;
332: my $statement="zip $zipfile";
333: foreach my $file (@texfile) {
334: $file=~s/\.tex/.\pdf/;
335: $statement.=' '.$file;
336: }
337: system("$statement");
338: $zipfile=~s/\/home\/httpd//;
339: print "<br /> <a href=\"$zipfile\">Your ZIP file is here</a>";
340: }
341: &Close_StatWin();
342:
343:
344: sub Create_StatWin {
345: my ($title, $heading)=@_;
346: print('<script>'.
347: "popwin=window.open('','popwin','width=400,height=100');".
348: "popwin.document.writeln('<html><head><title>$title</title></head>".
349: "<body bgcolor=\"#88DDFF\">".
350: "<h4>$heading</h4>".
351: "<form name=popremain>".
352: '<input type="text" size="55" name="remaining" value="'.
353: 'Starting'.'"></form>'.
354: "</body></html>');".
355: "popwin.document.close();".
356: "</script>");
357: }
358:
359: sub Update_StaWin {
360: my ($info)=@_;
361: print('<script>popwin.document.popremain.remaining.value="'.
362: $info.'";'.'</script>');
363: }
364:
365: sub Close_StatWin {
366: print('<script>popwin.window.close()</script>'."\n");
367:
368: }
369:
370:
371:
372:
373:
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