1: #!/usr/bin/perl
2: # CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc.
3: #
4: # $Id: printout.pl,v 1.67 2004/08/18 18:56:46 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: use Apache::lonhtmlcommon;
35: use Apache::loncommon;
36: use Apache::lonlocal;
37:
38: use strict;
39: $|=1;
40: my %origENV=%ENV;
41: if (! &LONCAPA::loncgi::check_cookie_and_load_env()) {
42: print <<END;
43: Content-type: text/html
44:
45: <html>
46: <head><title>Bad Cookie</title></head>
47: <body>
48: Your cookie information is incorrect.
49: </body>
50: </html>
51: END
52: return;
53: }
54: &Apache::lonlocal::get_language_handle();
55: &Apache::loncommon::content_type(undef,'text/html');
56: my $bodytag=&Apache::loncommon::bodytag('Creating PDF','','');
57: print $bodytag;
58:
59: my $identifier = $ENV{'QUERY_STRING'};
60: my $texfile = $ENV{'cgi.'.$identifier.'.file'};
61: my $laystyle = $ENV{'cgi.'.$identifier.'.layout'};
62: my $numberofcolumns = $ENV{'cgi.'.$identifier.'.numcol'};
63: my $paper = $ENV{'cgi.'.$identifier.'.paper'};
64: my $selectionmade = $ENV{'cgi.'.$identifier.'.selection'};
65: my $tableofcontents = $ENV{'cgi.'.$identifier.'tableofcontents'};
66: my $tableofindex = $ENV{'cgi.'.$identifier.'tableofindex'};
67: my $advans_role = $ENV{'cgi.'.$identifier.'role'};
68: my $number_of_files = $ENV{'cgi.'.$identifier.'numberoffiles'}+1;
69: my $student_names = $ENV{'cgi.'.$identifier.'studentnames'};
70: my $backref = $ENV{'cgi.'.$identifier.'backref'};
71:
72:
73: my $adv = $ENV{'request.role.adv'};
74:
75: my @names_pack=();
76: if ($student_names=~/_END_/) {
77: @names_pack=split(/_ENDPERSON_/,$student_names);
78: }
79: #got what we needed reset ENV in case it is to big for system
80: %ENV=%origENV;
81:
82: my $figfile = $texfile;
83: $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;
84: my $duefile = $texfile;
85: $duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/;
86: #do we have figures?
87: if (-e $figfile) {
88: my %done_conversion;
89: my $temporary_file=IO::File->new($figfile) || die "Couldn't open file for reading: $!\n";
90: my @content_of_file = <$temporary_file>;
91: close $temporary_file;
92: my $noteps;
93: my %prog_state;
94: if ($adv) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Coverting Images to EPS','Picture Conversion Status',$#content_of_file,'inline','80'); }
95: foreach my $not_eps (@content_of_file) {
96: chomp($not_eps);
97: if ($not_eps ne '') {
98: my $status_statement='EPS picture for '.$not_eps;
99: $not_eps=~s|\/\.\/|\/|g;
100: my $eps_f = $not_eps;
101: $eps_f =~ s/\.[^.]*$/\.eps/i;
102: if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) {
103: $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/;
104: $eps_f = '/home/httpd/prtspool/'.$eps_f;
105: } elsif ($eps_f=~/$Apache::lonnet::perlvar{'lonDocRoot'}\/res\//) {
106: $eps_f=~m/$Apache::lonnet::perlvar{'lonDocRoot'}\/res\/(.+)/;
107: $eps_f = '/home/httpd/prtspool/'.$1;
108: } elsif ($eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\//) {
109: $eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\/([^\/]+)\/\w\/\w\/\w\/(.+)/;
110: $eps_f = '/home/httpd/prtspool/'.$1.'/'.$2;
111: }
112: my $path=$eps_f;
113: $path=~s/\/([^\/]+)\.eps$//;
114: File::Path::mkpath($path,0,0777);
115: my $image = Image::Magick->new;
116: $not_eps =~ s/^\s+//;
117: $not_eps =~ s/\s+$//;
118: if ( exists($done_conversion{$not_eps})) {
119: next;
120: }
121: if ($adv) {
122: my $prettyname=$not_eps;
123: $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|;
124: $prettyname=~s|$Apache::lonnet::perlvar{'lonDocRoot'}/|/|;
125: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Converting to EPS '.$prettyname); }
126: $done_conversion{$not_eps}=1;
127: my $status = $image->Read($not_eps);
128: if ($status) {print " $status ";}
129: $image->Set(page => '+100+200');
130: $status = $image->Write($eps_f);
131: if ($status) {print " $status ";}
132: #check is eps exist in prtspool
133: if(not -e $eps_f) {
134: for (my $i=0;$i<10000;$i++) {
135: if (-e $eps_f.'.'.$i) {
136: rename $eps_f.'.'.$i, $eps_f;
137: last;
138: }
139: }
140: }
141: }
142: }
143: if ($adv) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
144: unlink($figfile);
145: }
146: #print "$texfile\n"; #name of the tex file for debugging only
147: my @texfile=($texfile);
148: if ($number_of_files>1) {
149: @texfile=();
150: for (my $i=1;$i<=$number_of_files;$i++) {
151: my $new_texfile=$texfile;
152: $new_texfile=~s/\.tex/_$i\.tex/;
153: push @texfile,$new_texfile;
154: }
155: }
156:
157: my $ind=-1;
158: my %prog_state;
159: print "<a href=\"$backref\"><b>Return</b></a> to last resource.<br /><br />";
160: if ($adv) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status','Class Print Status',$number_of_files,'inline','80'); }
161: print "<br />";
162: foreach $texfile (@texfile) {
163: my $status_statement='';
164: my $link_text='download PDF';
165: $ind++;
166: my @stud_info=split(/_END_/,$names_pack[$ind]);
167: my @tempo_array=split(/:/,$stud_info[0]);
168: my $name;
169: if ($tempo_array[3]) {
170: $name=$tempo_array[3];
171: } else {
172: $name=$tempo_array[0].'@'.$tempo_array[1];
173: }
174: $link_text='<b>'.$name.'</b>';
175: $status_statement.=$name;
176: if ($#stud_info>0) {
177: @tempo_array=split(/:/,$stud_info[-1]);
178: if ($tempo_array[3]) {
179: $name=$tempo_array[3];
180: } else {
181: $name=$tempo_array[0].'@'.$tempo_array[1];
182: }
183: $link_text.=' - <b>'.$name.'</b>';
184: $status_statement.=' - '.$name;
185: }
186: if ($adv) { &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Creating PDF for '.$status_statement); }
187: if (-e $texfile) {
188: $texfile =~ m/^(.*)\/([^\/]+)$/;
189: my $name_file = $2;
190: my $path_file = $1.'/';
191: chdir $path_file;
192: my $dvi_file= $name_file; $dvi_file =~ s/\.tex/\.dvi/;
193: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
194: "for $status_statement now LaTeXing file",
195: \%prog_state,$dvi_file);
196: if ($tableofcontents eq 'yes') {
197: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
198: "for $status_statement now LaTeXing file for table of contents",
199: \%prog_state,$dvi_file);
200: } #to create table of contents
201: my $idxname=$name_file;
202: $idxname=~s/\.tex$/\.idx/;
203: if ($tableofindex eq 'yes') {
204: &busy_wait_command("makeindex $idxname",
205: "making index file",
206: \%prog_state,$idxname);
207: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
208: "for $status_statement now LaTeXing file for index section",
209: \%prog_state,$dvi_file);
210: } #to create index
211: #Do we have a latex error in the log file?
212: my $logfilename = $texfile; $logfilename =~ s/\.tex$/\.log/;
213: my $temporary_file=IO::File->new($logfilename) || die "Couldn't open file for reading: $!\n";
214: my @content_of_file = <$temporary_file>;
215: close $temporary_file;
216: my $body_log_file = join(' ',@content_of_file);
217: $logfilename =~ s/\.log$/\.html/;
218: $temporary_file = IO::File->new('>'.$logfilename);
219: print $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n";
220: if ($body_log_file=~m/!\s+Emergency stop/) {
221: #LaTeX failed to parse tex file
222: print "<h2>LaTeX could not successfully parse your tex file.</h2>";
223: print "It probably has errors in it.<br />";
224: my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
225: my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
226: if ($whereitbegins!=-1 and $whereitends!=-1) {
227: print "With very high probability this error occured in ".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)."<br /><br />";
228: }
229: print "Here are the error messages in the LaTeX log file</br><br />";
230: my $sygnal = 0;
231: for (my $i=0;$i<=$#content_of_file;$i++) {
232: if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {
233: $sygnal = 1;
234: }
235: if ($content_of_file[$i]=~m/Here is how much of/) {
236: $sygnal = 0;
237: }
238: if ($sygnal) {
239: print "$content_of_file[$i]<br />";
240: }
241: }
242: if ($advans_role) {
243: print "<b><big>The link to ";
244: $logfilename=~s/\/home\/httpd//;
245: print "<a href=\"$logfilename\">Your log file </a></big></b>";
246: print "\n";
247: #link tooriginal LaTeX file (included according Michael Hamlin desire)
248: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open file for reading: $!\n";
249: my @tex_content_of_file = <$tex_temporary_file>;
250: close $tex_temporary_file;
251: my $body_tex_file = join(' ',@tex_content_of_file);
252: $texfile =~ s/\.tex$/aaaaa\.html/;
253: $tex_temporary_file = IO::File->new('>'.$texfile);
254: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
255: print "<br /><br />";
256: print "<b><big>The link to ";
257: $texfile=~s/\/home\/httpd//;
258: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
259: print "\n";
260: }
261:
262: } elsif ($body_log_file=~m/<inserted text>/) {
263: my $whereitbegins = index $body_log_file,'<inserted text>';
264: print "You are running LaTeX in <b>batch mode</b>.";
265: while ($whereitbegins != -1) {
266: my $tempobegin=$whereitbegins;
267: $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins;
268: my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$whereitbegins;
269: print "<br />It has found an error in".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)." <br /> and corrected it.\n";
270: 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";
271: $whereitbegins = index $body_log_file,'<inserted text>',$tempobegin+10;
272: }
273: $name_file =~ s/\.tex/\.dvi/;
274: my $new_name_file = $name_file;
275: $new_name_file =~ s/\.dvi/\.ps/;
276: my $papera=$paper;
277: if ($papera eq 'letter') {$papera='';}
278: if ($papera ne '') {$papera='-t'.$papera;}
279: my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file";
280: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
281: "for $status_statement now Converting to PS",
282: \%prog_state,$new_name_file);
283: if (-e $new_name_file) {
284: print "<h1>PDF output file (see link below)</h1>\n";
285: $new_name_file =~ m/^(.*)\./;
286: my $ps_file = my $tempo_file = $1.'temporar.ps';
287: my $pdf_file = $1.'.pdf';
288: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
289: $comma = "psnup -2 -s1.0 $new_name_file";
290: &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
291: "for $status_statement now Modifying PS layout",
292: \%prog_state,$tempo_file);
293: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
294: my $papera=$paper;
295: if ($papera eq 'letter') {$papera='';}
296: if ($papera ne '') {$papera='-p'.$papera;}
297: $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"';
298: &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null",
299: "for $status_statement now Modifying PS layout",
300: \%prog_state,$tempo_file);
301:
302: } else {
303: $ps_file=$new_name_file;
304: }
305: &busy_wait_command("ps2pdf $ps_file $pdf_file 1>/dev/null 2>/dev/null",
306: "for $status_statement now Converting PS to PDF",
307: \%prog_state, $pdf_file);
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: $texps =~ s/\.tex/\.ps/;
317: my @garb = ($texaux,$texdvi,$texps);
318: # unlink @garb;
319: unlink $duefile;
320: print "<a href=\"/prtspool/$pdf_file\">Your PDF document</a>";
321: if ($advans_role) {
322: print "<br /><br />";
323: print "<b><big>The link to ";
324: $logfilename=~s/\/home\/httpd//;
325: print "<a href=\"$logfilename\">Your log file </a></big></b>";
326: print "\n";
327: #link tooriginal LaTeX file (included according Michael Hamlin desire)
328: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open file for reading: $!\n";
329: my @tex_content_of_file = <$tex_temporary_file>;
330: close $tex_temporary_file;
331: my $body_tex_file = join(' ',@tex_content_of_file);
332: $texfile =~ s/\.tex$/aaaaa\.html/;
333: $tex_temporary_file = IO::File->new('>'.$texfile);
334: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
335: print "<br /><br />";
336: print "<b><big>The link to ";
337: $texfile=~s/\/home\/httpd//;
338: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
339: print "\n";
340: }
341: }
342: } else {
343: #LaTeX successfully parsed tex file
344: $name_file =~ s/\.tex/\.dvi/;
345: my $new_name_file = $name_file;
346: $new_name_file =~ s/\.dvi/\.ps/;
347: my $papera=$paper;
348: if ($papera eq 'letter') {$papera='';}
349: if ($papera ne '') {$papera='-t'.$papera;}
350: my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file";
351: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
352: "for $status_statement now Converting to PS",
353: \%prog_state,$new_name_file);
354: if (-e $new_name_file) {
355: print "<br />";
356: $new_name_file =~ m/^(.*)\./;
357: my $ps_file = my $tempo_file = $1.'temporar.ps';
358: my $pdf_file = $1.'.pdf';
359: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
360: $comma = "psnup -2 -s1.0 $new_name_file";
361: &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
362: "for $status_statement now Modifying PS layout",
363: \%prog_state,$tempo_file);
364: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
365: $papera=~s/t/p/;
366: $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"';
367: &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null",
368: "for $status_statement now Modifying PS layout",
369: \%prog_state,$tempo_file);
370: } else {
371: $ps_file=$new_name_file;
372: }
373: my $addtoPSfile={'legal'=>'<< /PageSize [612 1008] >> setpagedevice',
374: 'tabloid'=>'<< /PageSize [792 1224] >> setpagedevice',
375: 'executive'=>,'<< /PageSize [540 720] >> setpagedevice',
376: 'a2'=>'<< /PageSize [1195.02 1690.09] >> setpagedevice',
377: 'a3'=>'<< /PageSize [842 1195.02] >> setpagedevice',
378: 'a4'=>'<< /PageSize [595.2 842] >> setpagedevice',
379: 'a5'=>'<< /PageSize [421.1 595.2] >> setpagedevice',
380: 'a6'=>'<< /PageSize [298.75 421.1] >> setpagedevice',
381: };
382: if ($paper ne 'letter') {
383: open(FFH,'<',$ps_file) || die "Couldn't open file for reading: $!\n";
384: my $new_ps_file='new'.$ps_file;
385: open(FFHS,'>',$new_ps_file) || die "Couldn't open file for reading: $!\n";
386: print FFHS $addtoPSfile->{$paper}."\n";
387: while (<FFH>) {
388: print FFHS $_;
389: }
390: close(FFH);
391: close(FFHS);
392: $ps_file=$new_ps_file;
393: }
394: &busy_wait_command("ps2pdf $ps_file $pdf_file 1>/dev/null 2>/dev/null",
395: "for $status_statement now Converting PS to PDF",
396: \%prog_state,$pdf_file);
397:
398: my $texlog = $texfile;
399: my $texaux = $texfile;
400: my $texdvi = $texfile;
401: my $texps = $texfile;
402: $texlog =~ s/\.tex/\.log/;
403: $texaux =~ s/\.tex/\.aux/;
404: $texdvi =~ s/\.tex/\.dvi/;
405: $texps =~ s/\.tex/\.ps/;
406: my @garb = ($texlog,$texaux,$texdvi,$texps);
407: # unlink @garb;
408: unlink $duefile;
409: print "<a href=\"/prtspool/$pdf_file\">$link_text</a>";
410: print "\n";
411: }
412: }
413: } else {
414: print "LaTeX file $texfile was not created successfully";
415: }
416: }
417: print "<br />";
418: if ($number_of_files>1) {
419: my $zipfile=$texfile[0];
420: $zipfile=~s/\.tex/\.zip/;
421: my $statement="zip $zipfile";
422: foreach my $file (@texfile) {
423: $file=~s/\.tex/.\pdf/;
424: $statement.=' '.$file;
425: }
426: print("<pre>Zip Output:\n");
427: system($statement);
428: print("</pre>");
429: $zipfile=~s/\/home\/httpd//;
430: print "<br /> A <a href=\"$zipfile\">ZIP file</a> of all the PDFs.";
431: }
432: if ($adv) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
433:
434: my $done;
435: sub REAPER {
436: $done=1;
437: }
438:
439: sub busy_wait_command {
440: my ($command,$message,$progress_win,$output_file)=@_;
441:
442: $SIG{CHLD} = \&REAPER;
443: $done=0;
444: my $pid=open(CMD,"$command |");
445: if ($adv) {
446: &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);
447: }
448: while(!$done) {
449: sleep 1;
450: my $extra_msg;
451: if ($output_file) {
452: my $size=(stat($output_file))[7];
453: $extra_msg=", $size bytes generated";
454: }
455: if ($adv) {
456: &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,
457: $message.$extra_msg);
458: }
459: }
460: $SIG{CHLD}='IGNORE';
461: close(CMD);
462: }
463:
464:
465:
466:
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