1: #!/usr/bin/perl
2: # CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc.
3: #
4: #
5: # Copyright Michigan State University Board of Trustees
6: #
7: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
8: #
9: # LON-CAPA is free software; you can redistribute it and/or modify
10: # it under the terms of the GNU General Public License as published by
11: # the Free Software Foundation; either version 2 of the License, or
12: # (at your option) any later version.
13: #
14: # LON-CAPA is distributed in the hope that it will be useful,
15: # but WITHOUT ANY WARRANTY; without even the implied warranty of
16: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17: # GNU General Public License for more details.
18: #
19: # You should have received a copy of the GNU General Public License
20: # along with LON-CAPA; if not, write to the Free Software
21: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22: #
23: # /home/httpd/html/adm/gpl.txt
24: #
25: # http://www.lon-capa.org/
26: #
27:
28: use lib '/home/httpd/lib/perl';
29: use LONCAPA::loncgi;
30: use File::Path;
31: use File::Basename;
32: use File::Copy;
33: use IO::File;
34: use Image::Magick;
35: use Apache::lonhtmlcommon();
36: use Apache::lonnet;
37: use Apache::loncommon();
38: use Apache::lonlocal;
39: use Apache::lonmsg();
40: use LONCAPA::Enrollment;
41:
42: use strict;
43:
44:
45: # Determine if a user is operating as a student for this course/domain.
46: #Parameters:
47: # none
48: #Implicit:
49: # $env{request.role} contains the role under which this user operated this
50: # this request.
51: sub is_student {
52: return ($env{'request.role'}=~/^st\./);
53: }
54:
55: #
56: # Debugging: Dump the environment for debugging.
57: #
58: sub dumpenv {
59: print "<br />-------------------<br />";
60: foreach my $key (sort (keys %env)) {
61: print "<br />$key -> $env{$key}";
62: }
63: print "<br />-------------------<br />";
64: }
65:
66: #
67: # This sub sends a message to the appropriate person if there was an error
68: # rendering the latex At present, there's only one case to consider:
69: # a student printing inside a course results in messages to the course coordinator.
70: #Parmaeters:
71: # identifier - The unique identifier of this cgi request.
72: # badresource- Filepath to most likely failing
73: # logfile - The contents of the log file (included in the message).
74: # texfile - reference to an array containing the LaTeX input file
75: # (included in the message).
76: #Implicit inputs:
77: # From the environment:
78: # cgi.$identifier.user - User doing the printing.
79: # cgi.$identifier.domain - Domain the user is logged in on with printing.
80: # cgi.$identifier.courseid - Id of the course (if this is a course).
81: # cgi.$identifier.coursedom- Domain in which course was constituted.
82: # cgi.$identifier.resources - List of resource URL's for which the print
83: # was attempted.
84: #
85: sub send_error_mail {
86: my ($identifier, $badresource, $logfile, $texfile) = @_;
87: my $user = $env{"cgi.$identifier.user"};
88: my $domain = $env{"cgi.$identifier.domain"};
89: my $courseid = $env{"cgi.$identifier.courseid"};
90: my $coursedom= $env{"cgi.$identifier.coursedom"};
91: my $resources= $env{"cgi.$identifier.resources"};
92:
93: # resource file->URL
94: #
95: my $badurl = &Apache::lonnet::declutter($badresource);
96:
97: # &dumpenv();
98:
99:
100:
101: # Only continue if there is a user, domain, courseid, course domain
102: # and resources:
103:
104: if(defined($user) && defined($domain) && defined($courseid) &&
105: defined($coursedom) && defined($resources) ){
106:
107: # Only mail if the conditions are ripe for it:
108: # The user is a student in the course:
109: #
110:
111: if (&is_student()) {
112: # build the subject and message body:
113: # print "sending message to course coordinators.<br />";
114:
115: # Todo: Convert badurl into a url from file path:
116:
117: my $subject = "Error [$badurl] Print failed for $user".'@'.$domain;
118: my $message .= "Print failed to render LaTeX for $user".'@'."$domain\n";
119: $message .= " User was attempting to print: \n";
120: foreach my $resource (split(/:/,$resources)) {
121: $message .= " $resource\n";
122: }
123: $message .= "--------------------LaTeX logfile:------------ \n";
124: $message .= $logfile;
125: $message .= "-----------------LaTeX source file: ------------\n";
126:
127: foreach my $line (@$texfile) {
128: $message .= "$line\n";
129: }
130: my (undef, %receivers) = &Apache::lonfeedback::decide_receiver(undef, 0,
131: 1,1,1);
132: # print "<br /> sending...section: $env{'request.course.sec'}";
133: foreach my $dest (keys %receivers) {
134: # print "<br /> dest is $dest";
135: my @destinfo = split(/:/,$dest);
136: my $user = $destinfo[0];
137: my $dom = $destinfo[1];
138:
139: &Apache::lonmsg::user_normal_msg($user, $dom,
140: $subject, $message);
141:
142: # No point in looking at the return status as there's no good
143: # error action I can think of right now (log maybe?).
144: }
145: }
146: }
147: }
148:
149: $|=1;
150: if (! &LONCAPA::loncgi::check_cookie_and_load_env()) {
151: print <<END;
152: Content-type: text/html
153:
154: <html>
155: <head><title>Bad Cookie</title></head>
156: <body>
157: Your cookie information is incorrect.
158: </body>
159: </html>
160: END
161: return;
162: }
163: &Apache::lonlocal::get_language_handle();
164: &Apache::loncommon::content_type(undef,'text/html');
165:
166: print(&Apache::loncommon::start_page('Creating PDF'));
167:
168: my $identifier = $ENV{'QUERY_STRING'};
169: my $texfile = $env{'cgi.'.$identifier.'.file'};
170: my $laystyle = $env{'cgi.'.$identifier.'.layout'};
171: my $numberofcolumns = $env{'cgi.'.$identifier.'.numcol'};
172: my $paper = $env{'cgi.'.$identifier.'.paper'};
173: my $selectionmade = $env{'cgi.'.$identifier.'.selection'};
174: my $tableofcontents = $env{'cgi.'.$identifier.'.tableofcontents'};
175: my $tableofindex = $env{'cgi.'.$identifier.'.tableofindex'};
176: my $advanced_role = $env{'cgi.'.$identifier.'.role'};
177: my $number_of_files = $env{'cgi.'.$identifier.'.numberoffiles'}+1;
178: my $student_names = $env{'cgi.'.$identifier.'.studentnames'};
179: my $backref = &Apache::lonnet::unescape($env{'cgi.'.$identifier.'.backref'});
180:
181:
182: my @names_pack=();
183: if ($student_names=~/_END_/) {
184: @names_pack=split(/_ENDPERSON_/,$student_names);
185: }
186:
187: print "<a href=\"$backref\"><b>Return</b></a> to last resource.<br /><br />";
188:
189: my $figfile = $texfile;
190: $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;
191: my $duefile = $texfile;
192: $duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/;
193: #do we have figures?
194: # print "Figure file: $figfile\n";
195: if (-e $figfile) {
196: # print "$figfile exists\n";
197: my %done_conversion;
198: my $temporary_file=IO::File->new($figfile) || die "Couldn't open fig file $figfile for reading: $!\n";
199: my @content_of_file = <$temporary_file>;
200: close $temporary_file;
201: my $noteps;
202: my %prog_state;
203: if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Coverting Images to EPS','Picture Conversion Status',$#content_of_file,'inline','80'); }
204: print('<br />');
205: foreach my $not_eps (@content_of_file) {
206: chomp($not_eps);
207: if ($not_eps ne '') {
208: # print "Converting $not_eps"; # Debugging.
209: my $status_statement='EPS picture for '.$not_eps;
210: # print "$status_statement\n";
211: $not_eps=~s|\/\.\/|\/|g;
212: my $eps_f = $not_eps;
213: # $eps_f =~ s/\.[^.]*$/\.eps/i;
214: if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) {
215: $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/;
216: $eps_f = '/home/httpd/prtspool/'.$eps_f;
217: } elsif ($eps_f=~/$Apache::lonnet::perlvar{'lonDocRoot'}\/res\//) {
218: $eps_f=~m/$Apache::lonnet::perlvar{'lonDocRoot'}\/res\/(.+)/;
219: $eps_f = '/home/httpd/prtspool/'.$1;
220: } elsif ($eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\//) {
221: $eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\/([^\/]+)\/\w\/\w\/\w\/(.+)/;
222: $eps_f = '/home/httpd/prtspool/'.$1.'/'.$2;
223: }
224: $eps_f =~ s/ /\_/g; # Spaces are problematic for system commands and LaTeX.
225: #
226: # If the file is already an .eps or .ps file,
227: # We really just need to copy it from where it was to prtspool
228: # but with the spaces substituted to _'s.
229: #
230: my ($path, $nsname, $sext) = fileparse($eps_f, qr/\.(ps|eps)/i);
231: if ($sext =~/ps$/i) {
232: File::Path::mkpath($path,0,0777);
233: $not_eps =~ s/^\s+//;
234: $not_eps =~ s/\s+$//;
235: $not_eps =~ s/ /\__/g;
236: File::Copy("$not_eps", "$eps_f");
237: } else {
238:
239: $eps_f .= '.eps'; # Just append the eps ext.
240: my $path=$eps_f;
241: $path =~ s/\/([^\/]+)\.eps$//;
242: # print "Final file path: $path "; # Debugging
243: File::Path::mkpath($path,0,0777);
244: $not_eps =~ s/^\s+//;
245: $not_eps =~ s/\s+$//;
246: $not_eps =~ s/ /\\ /g;
247: if ( exists($done_conversion{$not_eps})) { next; }
248: if ($advanced_role) {
249: my $prettyname=$not_eps;
250: $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|;
251: $prettyname=~s|$Apache::lonnet::perlvar{'lonDocRoot'}/|/|;
252: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
253: 'Converting to EPS '.$prettyname);
254: }
255: $done_conversion{$not_eps}=1;
256: # print "Converting $not_eps -> $eps_f"; # Debugging
257: system("convert $not_eps $eps_f");
258: # check is eps exist in prtspool
259: if (not -e $eps_f) {
260: # converting an animated gif creates either:
261: # anim.gif.eps.0
262: # or
263: # anim.gif-0.eps
264: for (my $i=0;$i<10000;$i++) {
265: if (-e $eps_f.'.'.$i) {
266: rename($eps_f.'.'.$i, $eps_f);
267: last;
268: }
269: my $anim_eps = $eps_f;
270: $anim_eps =~ s/(\.[^.]*)\.eps$/$1-$i\.eps/i;
271: if (-e $anim_eps) {
272: rename($anim_eps, $eps_f);
273: last;
274: }
275: }
276: }
277:
278: # imagemagick 6.2.0-6.2.7 fails to properly handle
279: # convert anim.gif anim.gif.eps
280: # it creates anim.eps instead.
281: if (not -e $eps_f) {
282: my $eps_f2 = $eps_f;
283: $eps_f2 =~ s/\.[^.]*\.eps$/\.eps/i;
284: if(-e $eps_f2) {
285: rename($eps_f2,$eps_f);
286: }
287: }
288: }
289:
290: }
291: }
292: if ($advanced_role) {
293: &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state);
294: }
295: unlink($figfile);
296: }
297: #print "$texfile\n"; #name of the tex file for debugging only
298: my @texfile=($texfile);
299: if ($number_of_files>1) {
300: @texfile=();
301: for (my $i=1;$i<=$number_of_files;$i++) {
302: my $new_texfile=$texfile;
303: $new_texfile=~s/\.tex//;
304: $new_texfile = sprintf("%s_%03d.tex", $new_texfile,$i);
305: push @texfile,$new_texfile;
306: }
307: }
308:
309: my $ind=-1;
310: my %prog_state;
311: if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status','Class Print Status',$number_of_files,'inline','80'); }
312: print "<br />";
313: my $num_files = @texfile;
314: foreach $texfile (@texfile) {
315: my $status_statement='';
316: my $link_text='download PDF';
317: $ind++;
318: my @stud_info=split(/_END_/,$names_pack[$ind]);
319: my @tempo_array=split(/:/,$stud_info[0]);
320: my $name;
321: my $name_range='';
322: if ($tempo_array[3]) {
323: $name=$tempo_array[3];
324: ($name_range) = split(/,/,$name, 2);
325: } else {
326: $name=$tempo_array[0].'@'.$tempo_array[1];
327: $name_range = $tempo_array[0];
328: }
329: if (($name ne "") && ($name ne '@') ) { # Could be printing codes...
330: $link_text='<b>'.$name.'</b>';
331: $status_statement.=$name;
332: }
333: if ($#stud_info>0) {
334: @tempo_array=split(/:/,$stud_info[-1]);
335: if ($tempo_array[3]) {
336: $name=$tempo_array[3];
337: my ($lastname) = split(/,/, $name,2);
338: $name_range .= "-".$lastname;
339: } else {
340: $name=$tempo_array[0].'@'.$tempo_array[1];
341: $name_range .= '-'.$tempo_array[0];
342: }
343: if (($name ne "") && ($name ne '@')) {
344: $link_text.=' - <b>'.$name.'</b>';
345: $status_statement.=' - '.$name;
346:
347: }
348: }
349: if(($num_files > 1) && ($link_text eq 'download PDF')) { # Printing codes
350: $link_text = '<b>'.basename($texfile,'.tex').'.pdf</b>';
351: $status_statement .= basename($texfile);
352: }
353: $name_range =~ s/'//g; # O'Neil -> ONeil e.g.
354: print "<br/>";
355: if ($advanced_role) { &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Creating PDF for '.$status_statement); }
356: # This little piece of dirt puts username ranges into the original tex
357: # Tex filename from which they'll propagate into the other filenames as well.
358: #
359: if (-e $texfile) {
360: if (($name_range ne '') && ($num_files > 1)) {
361: my $newtexfile = $texfile;
362: $newtexfile =~ s/\.tex/$name_range\.tex/;
363: rename($texfile, $newtexfile);
364: $texfile = $newtexfile;
365: }
366: $texfile =~ m/^(.*)\/([^\/]+)$/;
367: my $name_file = $2;
368: my $path_file = $1.'/';
369: chdir $path_file;
370: my $dvi_file= $name_file; $dvi_file =~ s/\.tex/$name_range\.dvi/;
371: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
372: "for $status_statement now LaTeXing file",
373: \%prog_state,$dvi_file);
374: if ($tableofcontents eq 'yes') {
375: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
376: "for $status_statement First LaTeX of file for table of contents",
377: \%prog_state,$dvi_file);
378: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
379: "for $status_statement Second LaTeX of file for table of contents",
380: \%prog_state,$dvi_file);
381: } #to create table of contents
382: my $idxname=$name_file;
383: $idxname=~s/\.tex$/\.idx/;
384: if ($tableofindex eq 'yes') {
385: &busy_wait_command("makeindex $idxname",
386: "making index file",
387: \%prog_state,$idxname);
388: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
389: "for $status_statement now LaTeXing file for index section",
390: \%prog_state,$dvi_file);
391: } #to create index
392: #Do we have a latex error in the log file?
393: my $logfilename = $texfile; $logfilename =~ s/\.tex$/\.log/;
394: my $temporary_file=IO::File->new($logfilename) || die "Couldn't open log file $logfilename for reading: $!\n";
395: my @content_of_file = <$temporary_file>;
396: close $temporary_file;
397: my $body_log_file = join(' ',@content_of_file);
398: $logfilename =~ s/\.log$/\.html/;
399: $temporary_file = IO::File->new('>'.$logfilename);
400: print $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n";
401: if ($body_log_file=~m/!\s+Emergency stop/) {
402: my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
403: my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
404: my $badresource;
405: my $badtext;
406: if ($whereitbegins!=-1 and $whereitends!=-1) {
407: $badtext = substr($body_log_file,$whereitbegins+26, $whereitends-$whereitbegins-26);
408: $whereitbegins = rindex $badtext,'located in';
409: if ($whereitbegins != -1) {
410:
411: $badresource = substr($badtext, $whereitbegins+27,
412: length($badtext) - $whereitbegins - 48);
413: # print "<br />failing resourcename: $badresource<br />";
414: }
415: }
416:
417: if ($advanced_role) {
418: #LaTeX failed to parse tex file
419: print "<h2>LaTeX could not successfully parse your tex file.</h2>";
420: print "It probably has errors in it.<br />";
421: print "With very high probability this error occured in ".$badtext."<br /><br />";
422: print "Here are the error messages in the LaTeX log file<br /><pre>";
423:
424: my $sygnal = 0;
425: for (my $i=0;$i<=$#content_of_file;$i++) {
426: if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {
427: $sygnal = 1;
428: }
429: if ($content_of_file[$i]=~m/Here is how much of/) {
430: $sygnal = 0;
431: }
432: if ($sygnal) {
433: print "$content_of_file[$i]";
434: }
435: }
436: print "</pre>\n";
437: # print "<br /> Advanced role <br />";
438: print "<b><big>The link to ";
439: $logfilename=~s/\/home\/httpd//;
440: print "<a href=\"$logfilename\">Your log file </a></big></b>";
441: print "\n";
442: #link tooriginal LaTeX file (included according Michael Hamlin desire)
443: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
444: my @tex_content_of_file = <$tex_temporary_file>;
445: close $tex_temporary_file;
446: my $body_tex_file = join(' ',@tex_content_of_file);
447: $texfile =~ s/\.tex$/aaaaa\.html/;
448: $tex_temporary_file = IO::File->new('>'.$texfile);
449: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
450: print "<br /><br />";
451: print "<b><big>The link to ";
452: $texfile=~s/\/home\/httpd//;
453: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
454: print "\n";
455: my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", "Help on printing");
456: print ("$help_text");
457:
458: } else { # Student role...
459: # at this point:
460: # $body_log_file - contains the log file.
461: # $name_file - is the name of the LaTeX file.
462: # $identifier - is the unique LaTeX identifier.l
463:
464: print "<br />There are errors in $badtext";
465: print "<br />These errors prevent this resource from printing correctly";
466: my $tex_handle = IO::File->new($name_file);
467: my @tex_contents = <$tex_handle>;
468: &send_error_mail($identifier, $badresource, $body_log_file, \@tex_contents);
469: print "<br />A message has been sent to the instructor describing this failure<br />";
470: my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", "Help on printing");
471: print ("$help_text");
472:
473: }
474:
475: } elsif ($body_log_file=~m/<inserted text>/) {
476: my $whereitbegins = index $body_log_file,'<inserted text>';
477: print "You are running LaTeX in <b>batch mode</b>.";
478: while ($whereitbegins != -1) {
479: my $tempobegin=$whereitbegins;
480: $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins;
481: my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$whereitbegins;
482: print "<br />It has found an error in".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)." <br /> and corrected it.\n";
483: 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";
484: $whereitbegins = index $body_log_file,'<inserted text>',$tempobegin+10;
485: }
486: $name_file =~ s/\.tex/\.dvi/;
487: my $new_name_file = $name_file;
488: $new_name_file =~ s/\.dvi/\.ps/;
489: my $papera=$paper;
490: if ($papera eq 'letter') {$papera='';}
491: if ($papera ne '') {$papera='-t'.$papera;}
492: my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file";
493: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
494: "for $status_statement now Converting to PS",
495: \%prog_state,$new_name_file);
496: if (-e $new_name_file) {
497: my $latex_file = $name_file;
498: $latex_file =~ s/\.dvi/\.tex/;
499: &repaginate($new_name_file, $latex_file, $numberofcolumns);
500: #
501: # Now have to re-latex, re dvips again to
502: # get the repaginated postscript.
503: #
504: &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
505: "for $status_statement first latex to repaginate",
506: \%prog_state, $name_file);
507: if ($tableofcontents eq 'yes') {
508: &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
509: "for $status_statement second latex to repaginate",
510: \%prog_state, $name_file);
511: &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
512: "for $status_statement third latex to repaginate",
513: \%prog_state, $name_file);
514: }
515: if ($tableofindex eq 'yes') {
516: my $idxname = $latex_file;
517: $idxname =~ s/\.tex$/\.idx/;
518: &busy_wait_command("makindex $idxname",
519: "Re-creating index file",
520: \%prog_state, $idxname);
521: &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
522: "for $status_statement now Recreting index (latex)",
523: \%prog_state, $dvi_file);
524:
525: }
526: &busy_wait_command("$comma $name_file 1>dev/null 2>/dev/null",
527: "for $status_statement dvips to repaginate",
528: \%prog_state, $new_name_file);
529: print "\n<h1>PDF output file (see link below)</h1>\n";
530: $new_name_file =~ m/^(.*)\./;
531: my $ps_file = my $tempo_file = $1.'temporar.ps';
532: my $pdf_file = $1.'.pdf';
533: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
534: my $papera=$paper;
535: if ($papera eq 'letter') {$papera='';}
536: if ($papera ne '') {$papera='-p'.$papera;}
537: $comma = "psnup $papera -2 -s1.0 $new_name_file";
538: &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
539: "for $status_statement now Modifying PS layout",
540: \%prog_state,$tempo_file);
541: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
542: my $papera=$paper;
543: if ($papera eq 'letter') {$papera='';}
544: if ($papera ne '') {$papera='-p'.$papera;}
545: $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"';
546: &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null",
547: "for $status_statement now Modifying PS layout",
548: \%prog_state,$tempo_file);
549:
550: } else {
551: $ps_file=$new_name_file;
552: }
553: &busy_wait_command("ps2pdf $ps_file $pdf_file 1>/dev/null 2>/dev/null",
554: "for $status_statement now Converting PS to PDF",
555: \%prog_state, $pdf_file);
556:
557: my $texlog = $texfile;
558: my $texaux = $texfile;
559: my $texdvi = $texfile;
560: my $texps = $texfile;
561: $texlog =~ s/\.tex/\.log/;
562: $texaux =~ s/\.tex/\.aux/;
563: $texdvi =~ s/\.tex/\.dvi/;
564: $texps =~ s/\.tex/\.ps/;
565: my @garb = ($texaux,$texdvi,$texps);
566: # unlink @garb;
567: unlink $duefile;
568: print "<a href=\"/prtspool/$pdf_file\">Your PDF document</a>";
569: }
570: if ($advanced_role) {
571: print "<br /><br />";
572: print "<b><big>The link to ";
573: $logfilename=~s/\/home\/httpd//;
574: print "<a href=\"$logfilename\">Your log file </a></big></b>";
575: print "\n";
576: #link tooriginal LaTeX file (included according Michael Hamlin desire)
577: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
578: my @tex_content_of_file = <$tex_temporary_file>;
579: close $tex_temporary_file;
580: my $body_tex_file = join(' ',@tex_content_of_file);
581: $texfile =~ s/\.tex$/aaaaa\.html/;
582: $tex_temporary_file = IO::File->new('>'.$texfile);
583: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
584: print "<br /><br />";
585: print "<b><big>The link to ";
586: $texfile=~s/\/home\/httpd//;
587: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
588: print "\n";
589: }
590: } else {
591: #LaTeX successfully parsed tex file
592: $name_file =~ s/\.tex/\.dvi/;
593: my $new_name_file = $name_file;
594: $new_name_file =~ s/\.dvi/\.ps/;
595: my $papera=$paper;
596: if ($papera eq 'letter') {$papera='';}
597: if ($papera ne '') {$papera='-t'.$papera;}
598: my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file";
599: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
600: "for $status_statement now Converting to PS",
601: \%prog_state,$new_name_file);
602: if (-e $new_name_file) {
603: my $latex_file = $name_file;
604: $latex_file =~ s/\.dvi/\.tex/;
605: &repaginate($new_name_file, $latex_file, $numberofcolumns);
606: &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
607: "for $status_statement first latex to repaginate",
608: \%prog_state, $name_file);
609: if ($tableofcontents eq 'yes') {
610: &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
611: "for $status_statement second latex to repaginate",
612: \%prog_state, $name_file);
613: &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
614: "for $status_statement third latex to repaginate",
615: \%prog_state, $name_file);
616: }
617: if ($tableofindex eq 'yes') {
618: my $idxname = $latex_file;
619: $idxname =~ s/\.tex$/\.idx/;
620: &busy_wait_command("makeindex $idxname",
621: "Re-creating index file",
622: \%prog_state, $idxname);
623: &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
624: "for $status_statement now Recreting index (latex)",
625: \%prog_state, $dvi_file);
626: }
627: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
628: "for $status_statement dvips to repaginate",
629: \%prog_state, $new_name_file);
630: print "<br />";
631: $new_name_file =~ m/^(.*)\./;
632: my $ps_file = my $tempo_file = $1.'temporar.ps';
633: my $pdf_file = $1.'.pdf';
634: $papera=~s/t/p/;
635: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
636: $comma = "psnup $papera -2 -s1.0 $new_name_file";
637: &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
638: "for $status_statement now Modifying PS layout",
639: \%prog_state,$tempo_file);
640: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
641: $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"';
642: &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null",
643: "for $status_statement now Modifying PS layout",
644: \%prog_state,$tempo_file);
645: } else {
646: $ps_file=$new_name_file;
647: }
648: my $addtoPSfile={'legal'=>'<< /PageSize [612 1008] >> setpagedevice',
649: 'tabloid'=>'<< /PageSize [792 1224] >> setpagedevice',
650: 'executive'=>,'<< /PageSize [540 720] >> setpagedevice',
651: 'a2'=>'<< /PageSize [1195.02 1690.09] >> setpagedevice',
652: 'a3'=>'<< /PageSize [842 1195.02] >> setpagedevice',
653: 'a4'=>'<< /PageSize [595.2 842] >> setpagedevice',
654: 'a5'=>'<< /PageSize [421.1 595.2] >> setpagedevice',
655: 'a6'=>'<< /PageSize [298.75 421.1] >> setpagedevice',
656: };
657: if ($paper ne 'letter') {
658: open(FFH,'<',$ps_file) || die "Couldn't open ps file $ps_file for reading: $!\n";
659: my $new_ps_file='new'.$ps_file;
660: open(FFHS,'>',$new_ps_file) || die "Couldn't open new ps file $new_ps_file for reading: $!\n";
661: print FFHS $addtoPSfile->{$paper}."\n";
662: while (<FFH>) {
663: print FFHS $_;
664: }
665: close(FFH);
666: close(FFHS);
667: $ps_file=$new_ps_file;
668: }
669: &busy_wait_command("ps2pdf $ps_file $pdf_file 1>/dev/null 2>/dev/null",
670: "for $status_statement now Converting PS to PDF",
671: \%prog_state,$pdf_file);
672:
673: my $texlog = $texfile;
674: my $texaux = $texfile;
675: my $texdvi = $texfile;
676: my $texps = $texfile;
677: $texlog =~ s/\.tex/\.log/;
678: $texaux =~ s/\.tex/\.aux/;
679: $texdvi =~ s/\.tex/\.dvi/;
680: $texps =~ s/\.tex/\.ps/;
681: my @garb = ($texlog,$texaux,$texdvi,$texps);
682: # unlink @garb;
683: unlink $duefile;
684: print "<a href=\"/prtspool/$pdf_file\">$link_text - click here to download pdf</a>";
685: print "\n";
686: }
687: }
688: } else {
689: print "LaTeX file $texfile was not created successfully";
690: }
691: }
692: print "<br />";
693: if ($number_of_files>1) {
694: my $zipfile=$texfile[0];
695: $zipfile=~s/\.tex/\.zip/;
696: my $statement="zip $zipfile";
697: foreach my $file (@texfile) {
698: $file=~s/\.tex/.\pdf/;
699: $statement.=' '.$file;
700: }
701: print("<pre>Zip Output:\n");
702: system($statement);
703: print("</pre>");
704: $zipfile=~s/\/home\/httpd//;
705: print "<br /> A <a href=\"$zipfile\">ZIP file</a> of all the PDFs.";
706: }
707: if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
708: print(&Apache::loncommon::end_page());
709: my $done;
710:
711: sub REAPER {
712: $done=1;
713: }
714:
715: sub busy_wait_command {
716: my ($command,$message,$progress_win,$output_file)=@_;
717:
718: $SIG{CHLD} = \&REAPER;
719: $done=0;
720: my $pid=open(CMD,"$command |");
721: if ($advanced_role) {
722: &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);
723: }
724: while(!$done) {
725: sleep 1;
726: my $extra_msg;
727: if ($output_file) {
728: my $size=(stat($output_file))[7];
729: $extra_msg=", $size bytes generated";
730: }
731: if ($advanced_role) {
732: &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,
733: $message.$extra_msg);
734: }
735: }
736: $SIG{CHLD}='IGNORE';
737: close(CMD);
738: }
739:
740: # Repagninate
741: # What we need to do:
742: # - Count the number of pages in each student.
743: # - Rewrite the latex file replacing the \specials that
744: # mark the end of student with an appropriate number of newlines.
745: # parameters:
746: # psfile - Postscript filename
747: # latexfile - LaTeX filename
748: # columns - number of columns.
749: sub repaginate {
750:
751: # We will try to do this in 2 passes through the postscript since
752: # the postscript is potentially large, to do 2 passes, the first pass
753: # must be able to calculate the total number of document pages so that
754: # at the beginning of the second pass we already know how to replace
755: # %%Pages:
756:
757: # Figure out
758: # 1. Number of pages in the document
759: # 2. Maximum number of pages in a student
760: # 3. Number of pages in each student.
761:
762: my ($postscript_filename, $latex_filename, $num_columns) = @_;
763: open(PSFILE, "<$postscript_filename");
764: my $line;
765: my $total_pages; # Total pages in document.
766: my $seen_pages = 0; # There are several %%Pages only the first is useful
767: my @pages_in_student; # For each student his/her initial page count.
768: my $max_pages = 0; # Pages in 'longest' student.
769: my $page_number = 0;
770: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
771: &mt("Counting pages for student: [_1]",1));
772:
773: while ($line = <PSFILE>) {
774:
775: # Check for total pages (%%Pages:)
776:
777: if (($line =~ /^%%Pages:/) && (!$seen_pages)) {
778: my @pageinfo = split(/ /,$line);
779: $total_pages = $pageinfo[1];
780: $seen_pages = 1;
781: }
782: # Check for %%Page: n m $page_number will be the
783: # biggest of these until we see an endofstudent.
784: # Note that minipages generate spurious %Page: 1 1's so
785: # we only are looking for the largest n (n is page number at the
786: # bottom of the page, m the page number within the document.
787: #
788:
789: if ($line =~ /^%%Page:/) {
790: my @pageinfo = split(/ /, $line);
791: if ($page_number < $pageinfo[1]) {
792: $page_number = $pageinfo[1];
793: } elsif ($pageinfo[2] ne 1) {
794: # current page count reset, and it's not because of a
795: # minipage
796: # - save the page_number, reset and, if necessary
797: # update max_pages.
798: push(@pages_in_student, $page_number);
799: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
800: &mt("Counting pages for student: [_1]", scalar(@pages_in_student)));
801: if ($page_number > $max_pages) {
802: $max_pages = $page_number;
803: }
804: $page_number = $pageinfo[1];
805: }
806: }
807:
808:
809: }
810: # file ended so one more student
811: push(@pages_in_student, $page_number);
812: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
813: &mt("Counting pages for student: [_1]",scalar(@pages_in_student)));
814: if ($page_number > $max_pages) {
815: $max_pages = $page_number;
816: }
817: $page_number = 0;
818:
819: close(PSFILE);
820:
821: # If 2 columns, max_pages must go to an even number of columns:
822:
823:
824: if ($num_columns == 2) {
825: if ($max_pages % 2) {
826: $max_pages++;
827: }
828: }
829:
830: # Now rewrite the LaTex file, substituting our \special
831: # with an appropriate number of \newpage directives.
832:
833: my $outfilename = $latex_filename."temp";
834:
835: open(LATEXIN, "<$latex_filename");
836: open(LATEXOUT, ">$outfilename");
837:
838:
839: my $student_number = 0; # Index of student we're working on.
840: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
841: "Repaginating student ".$student_number+1);
842:
843: while (my $line = <LATEXIN>) {
844: if ($line eq "\\special{ps:ENDOFSTUDENTSTAMP}\n") {
845: # only end of student stamp if next line is ENDOFSTUDENTSTAMP:
846:
847:
848: # End of student replace with 0 or more newpages.
849:
850: my $addlines = $max_pages - $pages_in_student[$student_number];
851: while($addlines) {
852: print LATEXOUT '\clearpage \strut \clearpage';
853:
854: $addlines--;
855: }
856:
857: $student_number++;
858: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
859: "Repaginating student ".$student_number+1);
860:
861: } else {
862: print LATEXOUT $line;
863: }
864: }
865:
866: close(LATEXIN);
867: close(LATEXOUT);
868: rename($outfilename, $latex_filename);
869:
870: }
871:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to printout.pl CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface