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 IO::File;
32: use Image::Magick;
33: use Apache::lonhtmlcommon;
34: use Apache::lonnet;
35: use Apache::loncommon;
36: use Apache::lonlocal;
37: use Apache::lonmsg;
38: use LONCAPA::Enrollment;
39:
40: use strict;
41:
42:
43: #
44: # Determine if a user is operating as a student for this course/domain.
45: #
46: #
47: #Parameters:
48: # course - The course id.
49: # cdom - The course domain.
50: #
51: #Implicit:
52: # $env{request.role} contains the role under which this user operated this
53: # this request.
54: sub is_student {
55: return (! $env{'request.role.adv'});
56: }
57:
58: #
59: # Debugging: Dump the environment for debugging.
60: #
61: sub dumpenv {
62: print "<br />-------------------<br />";
63: foreach my $key (sort (keys %env)) {
64: print "<br />$key -> $env{$key}";
65: }
66: print "<br />-------------------<br />";
67: }
68:
69: #
70: # This sub sends a message to the appropriate person if there was an error
71: # rendering the latex At present, there's only one case to consider:
72: # a student printing inside a course results in messages to the course coordinator.
73: #Parmaeters:
74: # identifier - The unique identifier of this cgi request.
75: # badresource- Filepath to most likely failing
76: # logfile - The contents of the log file (included in the message).
77: # texfile - reference to an array containing the LaTeX input file
78: # (included in the message).
79: #Implicit inputs:
80: # From the environment:
81: # cgi.$identifier.user - User doing the printing.
82: # cgi.$identifier.domain - Domain the user is logged in on with printing.
83: # cgi.$identifier.courseid - Id of the course (if this is a course).
84: # cgi.$identifier.coursedom- Domain in which course was constituted.
85: # cgi.$identifier.resources - List of resource URL's for which the print
86: # was attempted.
87: #
88: sub send_error_mail {
89: my ($identifier, $badresource, $logfile, $texfile) = @_;
90: my $user = $env{"cgi.$identifier.user"};
91: my $domain = $env{"cgi.$identifier.domain"};
92: my $courseid = $env{"cgi.$identifier.courseid"};
93: my $coursedom= $env{"cgi.$identifier.coursedom"};
94: my $resources= $env{"cgi.$identifier.resources"};
95:
96: # resource file->URL
97: #
98: my $badurl = &Apache::lonnet::declutter($badresource);
99:
100: # &dumpenv();
101:
102:
103:
104: # Only continue if there is a user, domain, courseid, course domain
105: # and resources:
106:
107: if(defined($user) && defined($domain) && defined($courseid) &&
108: defined($coursedom) && defined($resources) ){
109:
110: # Only mail if the conditions are ripe for it:
111: # The user is a student in the course:
112: #
113:
114: if (&is_student( $courseid, $coursedom)) {
115: # build the subject and message body:
116: # print "sending message to course coordinators.<br />";
117:
118: # Todo: Convert badurl into a url from file path:
119:
120: my $subject = "Error [$badurl] Print failed for $user".'@'.$domain;
121: my $message .= "Print failed to render LaTeX for $user".'@'."$domain\n";
122: $message .= " User was attempting to print: \n";
123: $message .= " $resources\n";
124: $message .= "--------------------LaTeX logfile:------------ \n";
125: $message .= $logfile;
126: $message .= "-----------------LaTeX source file: ------------\n";
127:
128: foreach my $line (@$texfile) {
129: $message .= "$line\n";
130: }
131: my (undef, %receivers) = &Apache::lonfeedback::decide_receiver(undef, 0,
132: 1,1,1);
133: # print "<br /> sending...section: $env{'request.course.sec'}";
134: foreach my $dest (keys %receivers) {
135: # print "<br /> dest is $dest";
136: my @destinfo = split(/:/,$dest);
137: my $user = $destinfo[0];
138: my $dom = $destinfo[1];
139:
140: &Apache::lonmsg::user_normal_msg($user, $dom,
141: $subject, $message);
142:
143: # No point in looking at the return status as there's no good
144: # error action I can think of right now (log maybe?).
145: }
146: }
147: }
148: }
149:
150: $|=1;
151: if (! &LONCAPA::loncgi::check_cookie_and_load_env()) {
152: print <<END;
153: Content-type: text/html
154:
155: <html>
156: <head><title>Bad Cookie</title></head>
157: <body>
158: Your cookie information is incorrect.
159: </body>
160: </html>
161: END
162: return;
163: }
164: &Apache::lonlocal::get_language_handle();
165: &Apache::loncommon::content_type(undef,'text/html');
166: my $bodytag=&Apache::loncommon::bodytag('Creating PDF','','');
167: print $bodytag;
168:
169: my $identifier = $ENV{'QUERY_STRING'};
170: my $texfile = $env{'cgi.'.$identifier.'.file'};
171: my $laystyle = $env{'cgi.'.$identifier.'.layout'};
172: my $numberofcolumns = $env{'cgi.'.$identifier.'.numcol'};
173: my $paper = $env{'cgi.'.$identifier.'.paper'};
174: my $selectionmade = $env{'cgi.'.$identifier.'.selection'};
175: my $tableofcontents = $env{'cgi.'.$identifier.'.tableofcontents'};
176: my $tableofindex = $env{'cgi.'.$identifier.'.tableofindex'};
177: my $advanced_role = $env{'cgi.'.$identifier.'.role'};
178: my $number_of_files = $env{'cgi.'.$identifier.'.numberoffiles'}+1;
179: my $student_names = $env{'cgi.'.$identifier.'.studentnames'};
180: my $backref = &Apache::lonnet::unescape($env{'cgi.'.$identifier.'.backref'});
181:
182:
183: my $adv = $env{'request.role.adv'};
184:
185: my @names_pack=();
186: if ($student_names=~/_END_/) {
187: @names_pack=split(/_ENDPERSON_/,$student_names);
188: }
189:
190: my $figfile = $texfile;
191: $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;
192: my $duefile = $texfile;
193: $duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/;
194: #do we have figures?
195: # print "Figure file: $figfile\n";
196: if (-e $figfile) {
197: # print "$figfile exists\n";
198: my %done_conversion;
199: my $temporary_file=IO::File->new($figfile) || die "Couldn't open fig file $figfile for reading: $!\n";
200: my @content_of_file = <$temporary_file>;
201: close $temporary_file;
202: my $noteps;
203: my %prog_state;
204: if ($adv) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Coverting Images to EPS','Picture Conversion Status',$#content_of_file,'inline','80'); }
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: $eps_f .= '.eps'; # Just append the eps ext.
215: if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) {
216: $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/;
217: $eps_f = '/home/httpd/prtspool/'.$eps_f;
218: } elsif ($eps_f=~/$Apache::lonnet::perlvar{'lonDocRoot'}\/res\//) {
219: $eps_f=~m/$Apache::lonnet::perlvar{'lonDocRoot'}\/res\/(.+)/;
220: $eps_f = '/home/httpd/prtspool/'.$1;
221: } elsif ($eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\//) {
222: $eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\/([^\/]+)\/\w\/\w\/\w\/(.+)/;
223: $eps_f = '/home/httpd/prtspool/'.$1.'/'.$2;
224: }
225: $eps_f =~ s/ /\_/g; # Spaces are problematic for system commands and LaTeX.
226: my $path=$eps_f;
227: $path =~ s/\/([^\/]+)\.eps$//;
228: # print "Final file path: $path "; # Debugging
229: File::Path::mkpath($path,0,0777);
230: $not_eps =~ s/^\s+//;
231: $not_eps =~ s/\s+$//;
232: $not_eps =~ s/ /\\ /g;
233: if ( exists($done_conversion{$not_eps})) { next; }
234: if ($adv) {
235: my $prettyname=$not_eps;
236: $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|;
237: $prettyname=~s|$Apache::lonnet::perlvar{'lonDocRoot'}/|/|;
238: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Converting to EPS '.$prettyname);
239: }
240: $done_conversion{$not_eps}=1;
241: # print "Converting $not_eps -> $eps_f"; # Debugging
242: system("convert $not_eps $eps_f");
243: #check is eps exist in prtspool
244: if(not -e $eps_f) {
245: for (my $i=0;$i<10000;$i++) {
246: if (-e $eps_f.'.'.$i) {
247: rename $eps_f.'.'.$i, $eps_f;
248: last;
249: }
250: }
251: }
252: }
253: }
254: if ($adv) {
255: &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state);
256: }
257: unlink($figfile);
258: }
259: #print "$texfile\n"; #name of the tex file for debugging only
260: my @texfile=($texfile);
261: if ($number_of_files>1) {
262: @texfile=();
263: for (my $i=1;$i<=$number_of_files;$i++) {
264: my $new_texfile=$texfile;
265: $new_texfile=~s/\.tex/_$i\.tex/;
266: push @texfile,$new_texfile;
267: }
268: }
269:
270: my $ind=-1;
271: my %prog_state;
272: print "<a href=\"$backref\"><b>Return</b></a> to last resource.<br /><br />";
273: if ($adv) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status','Class Print Status',$number_of_files,'inline','80'); }
274: print "<br />";
275: foreach $texfile (@texfile) {
276: my $status_statement='';
277: my $link_text='download PDF';
278: $ind++;
279: my @stud_info=split(/_END_/,$names_pack[$ind]);
280: my @tempo_array=split(/:/,$stud_info[0]);
281: my $name;
282: if ($tempo_array[3]) {
283: $name=$tempo_array[3];
284: } else {
285: $name=$tempo_array[0].'@'.$tempo_array[1];
286: }
287: $link_text='<b>'.$name.'</b>';
288: $status_statement.=$name;
289: if ($#stud_info>0) {
290: @tempo_array=split(/:/,$stud_info[-1]);
291: if ($tempo_array[3]) {
292: $name=$tempo_array[3];
293: } else {
294: $name=$tempo_array[0].'@'.$tempo_array[1];
295: }
296: $link_text.=' - <b>'.$name.'</b>';
297: $status_statement.=' - '.$name;
298: }
299: if ($adv) { &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Creating PDF for '.$status_statement); }
300: if (-e $texfile) {
301: $texfile =~ m/^(.*)\/([^\/]+)$/;
302: my $name_file = $2;
303: my $path_file = $1.'/';
304: chdir $path_file;
305: my $dvi_file= $name_file; $dvi_file =~ s/\.tex/\.dvi/;
306: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
307: "for $status_statement now LaTeXing file",
308: \%prog_state,$dvi_file);
309: if ($tableofcontents eq 'yes') {
310: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
311: "for $status_statement now LaTeXing file for table of contents",
312: \%prog_state,$dvi_file);
313: } #to create table of contents
314: my $idxname=$name_file;
315: $idxname=~s/\.tex$/\.idx/;
316: if ($tableofindex eq 'yes') {
317: &busy_wait_command("makeindex $idxname",
318: "making index file",
319: \%prog_state,$idxname);
320: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
321: "for $status_statement now LaTeXing file for index section",
322: \%prog_state,$dvi_file);
323: } #to create index
324: #Do we have a latex error in the log file?
325: my $logfilename = $texfile; $logfilename =~ s/\.tex$/\.log/;
326: my $temporary_file=IO::File->new($logfilename) || die "Couldn't open log file $logfilename for reading: $!\n";
327: my @content_of_file = <$temporary_file>;
328: close $temporary_file;
329: my $body_log_file = join(' ',@content_of_file);
330: $logfilename =~ s/\.log$/\.html/;
331: $temporary_file = IO::File->new('>'.$logfilename);
332: print $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n";
333: if ($body_log_file=~m/!\s+Emergency stop/) {
334: my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
335: my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
336: my $badresource;
337: my $badtext;
338: if ($whereitbegins!=-1 and $whereitends!=-1) {
339: $badtext = substr($body_log_file,$whereitbegins+26, $whereitends-$whereitbegins-26);
340: $whereitbegins = rindex $badtext,'located in';
341: if ($whereitbegins != -1) {
342:
343: $badresource = substr($badtext, $whereitbegins+27,
344: length($badtext) - $whereitbegins - 48);
345: # print "<br />failing resourcename: $badresource<br />";
346: }
347: }
348:
349: if ($advanced_role) {
350: #LaTeX failed to parse tex file
351: print "<h2>LaTeX could not successfully parse your tex file.</h2>";
352: print "It probably has errors in it.<br />";
353: print "With very high probability this error occured in ".$badtext."<br /><br />";
354: print "Here are the error messages in the LaTeX log file<br /><pre>";
355: my $sygnal = 0;
356: for (my $i=0;$i<=$#content_of_file;$i++) {
357: if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {
358: $sygnal = 1;
359: }
360: if ($content_of_file[$i]=~m/Here is how much of/) {
361: $sygnal = 0;
362: }
363: if ($sygnal) {
364: print "$content_of_file[$i]";
365: }
366: }
367: print "</pre>\n";
368: # print "<br /> Advanced role <br />";
369: print "<b><big>The link to ";
370: $logfilename=~s/\/home\/httpd//;
371: print "<a href=\"$logfilename\">Your log file </a></big></b>";
372: print "\n";
373: #link tooriginal LaTeX file (included according Michael Hamlin desire)
374: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
375: my @tex_content_of_file = <$tex_temporary_file>;
376: close $tex_temporary_file;
377: my $body_tex_file = join(' ',@tex_content_of_file);
378: $texfile =~ s/\.tex$/aaaaa\.html/;
379: $tex_temporary_file = IO::File->new('>'.$texfile);
380: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
381: print "<br /><br />";
382: print "<b><big>The link to ";
383: $texfile=~s/\/home\/httpd//;
384: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
385: print "\n";
386: } else { # Student role...
387: # at this point:
388: # $body_log_file - contains the log file.
389: # $name_file - is the name of the LaTeX file.
390: # $identifier - is the unique LaTeX identifier.l
391:
392: print "<br />There are errors in $badtext";
393: print "<br />These errors prevent this resource from printing correctly";
394: my $tex_handle = IO::File->new($name_file);
395: my @tex_contents = <$tex_handle>;
396: &send_error_mail($identifier, $badresource, $body_log_file, \@tex_contents);
397: print "<br />A message has been sent to the instructor describing this failure<br />"
398: }
399:
400: } elsif ($body_log_file=~m/<inserted text>/) {
401: my $whereitbegins = index $body_log_file,'<inserted text>';
402: print "You are running LaTeX in <b>batch mode</b>.";
403: while ($whereitbegins != -1) {
404: my $tempobegin=$whereitbegins;
405: $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins;
406: my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$whereitbegins;
407: print "<br />It has found an error in".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)." <br /> and corrected it.\n";
408: 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";
409: $whereitbegins = index $body_log_file,'<inserted text>',$tempobegin+10;
410: }
411: $name_file =~ s/\.tex/\.dvi/;
412: my $new_name_file = $name_file;
413: $new_name_file =~ s/\.dvi/\.ps/;
414: my $papera=$paper;
415: if ($papera eq 'letter') {$papera='';}
416: if ($papera ne '') {$papera='-t'.$papera;}
417: my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file";
418: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
419: "for $status_statement now Converting to PS",
420: \%prog_state,$new_name_file);
421: if (-e $new_name_file) {
422: print "<h1>PDF output file (see link below)</h1>\n";
423: $new_name_file =~ m/^(.*)\./;
424: my $ps_file = my $tempo_file = $1.'temporar.ps';
425: my $pdf_file = $1.'.pdf';
426: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
427: my $papera=$paper;
428: if ($papera eq 'letter') {$papera='';}
429: if ($papera ne '') {$papera='-p'.$papera;}
430: $comma = "psnup $papera -2 -s1.0 $new_name_file";
431: &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
432: "for $status_statement now Modifying PS layout",
433: \%prog_state,$tempo_file);
434: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
435: my $papera=$paper;
436: if ($papera eq 'letter') {$papera='';}
437: if ($papera ne '') {$papera='-p'.$papera;}
438: $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"';
439: &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null",
440: "for $status_statement now Modifying PS layout",
441: \%prog_state,$tempo_file);
442:
443: } else {
444: $ps_file=$new_name_file;
445: }
446: &busy_wait_command("ps2pdf $ps_file $pdf_file 1>/dev/null 2>/dev/null",
447: "for $status_statement now Converting PS to PDF",
448: \%prog_state, $pdf_file);
449:
450: my $texlog = $texfile;
451: my $texaux = $texfile;
452: my $texdvi = $texfile;
453: my $texps = $texfile;
454: $texlog =~ s/\.tex/\.log/;
455: $texaux =~ s/\.tex/\.aux/;
456: $texdvi =~ s/\.tex/\.dvi/;
457: $texps =~ s/\.tex/\.ps/;
458: my @garb = ($texaux,$texdvi,$texps);
459: # unlink @garb;
460: unlink $duefile;
461: print "<a href=\"/prtspool/$pdf_file\">Your PDF document</a>";
462: }
463: if ($advanced_role) {
464: print "<br /><br />";
465: print "<b><big>The link to ";
466: $logfilename=~s/\/home\/httpd//;
467: print "<a href=\"$logfilename\">Your log file </a></big></b>";
468: print "\n";
469: #link tooriginal LaTeX file (included according Michael Hamlin desire)
470: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
471: my @tex_content_of_file = <$tex_temporary_file>;
472: close $tex_temporary_file;
473: my $body_tex_file = join(' ',@tex_content_of_file);
474: $texfile =~ s/\.tex$/aaaaa\.html/;
475: $tex_temporary_file = IO::File->new('>'.$texfile);
476: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
477: print "<br /><br />";
478: print "<b><big>The link to ";
479: $texfile=~s/\/home\/httpd//;
480: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
481: print "\n";
482: }
483: } else {
484: #LaTeX successfully parsed tex file
485: $name_file =~ s/\.tex/\.dvi/;
486: my $new_name_file = $name_file;
487: $new_name_file =~ s/\.dvi/\.ps/;
488: my $papera=$paper;
489: if ($papera eq 'letter') {$papera='';}
490: if ($papera ne '') {$papera='-t'.$papera;}
491: my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file";
492: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
493: "for $status_statement now Converting to PS",
494: \%prog_state,$new_name_file);
495: if (-e $new_name_file) {
496: print "<br />";
497: $new_name_file =~ m/^(.*)\./;
498: my $ps_file = my $tempo_file = $1.'temporar.ps';
499: my $pdf_file = $1.'.pdf';
500: $papera=~s/t/p/;
501: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
502: $comma = "psnup $papera -2 -s1.0 $new_name_file";
503: &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
504: "for $status_statement now Modifying PS layout",
505: \%prog_state,$tempo_file);
506: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
507: $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"';
508: &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null",
509: "for $status_statement now Modifying PS layout",
510: \%prog_state,$tempo_file);
511: } else {
512: $ps_file=$new_name_file;
513: }
514: my $addtoPSfile={'legal'=>'<< /PageSize [612 1008] >> setpagedevice',
515: 'tabloid'=>'<< /PageSize [792 1224] >> setpagedevice',
516: 'executive'=>,'<< /PageSize [540 720] >> setpagedevice',
517: 'a2'=>'<< /PageSize [1195.02 1690.09] >> setpagedevice',
518: 'a3'=>'<< /PageSize [842 1195.02] >> setpagedevice',
519: 'a4'=>'<< /PageSize [595.2 842] >> setpagedevice',
520: 'a5'=>'<< /PageSize [421.1 595.2] >> setpagedevice',
521: 'a6'=>'<< /PageSize [298.75 421.1] >> setpagedevice',
522: };
523: if ($paper ne 'letter') {
524: open(FFH,'<',$ps_file) || die "Couldn't open ps file $ps_file for reading: $!\n";
525: my $new_ps_file='new'.$ps_file;
526: open(FFHS,'>',$new_ps_file) || die "Couldn't open new ps file $new_ps_file for reading: $!\n";
527: print FFHS $addtoPSfile->{$paper}."\n";
528: while (<FFH>) {
529: print FFHS $_;
530: }
531: close(FFH);
532: close(FFHS);
533: $ps_file=$new_ps_file;
534: }
535: &busy_wait_command("ps2pdf $ps_file $pdf_file 1>/dev/null 2>/dev/null",
536: "for $status_statement now Converting PS to PDF",
537: \%prog_state,$pdf_file);
538:
539: my $texlog = $texfile;
540: my $texaux = $texfile;
541: my $texdvi = $texfile;
542: my $texps = $texfile;
543: $texlog =~ s/\.tex/\.log/;
544: $texaux =~ s/\.tex/\.aux/;
545: $texdvi =~ s/\.tex/\.dvi/;
546: $texps =~ s/\.tex/\.ps/;
547: my @garb = ($texlog,$texaux,$texdvi,$texps);
548: # unlink @garb;
549: unlink $duefile;
550: print "<a href=\"/prtspool/$pdf_file\">$link_text - click here to download pdf</a>";
551: print "\n";
552: }
553: }
554: } else {
555: print "LaTeX file $texfile was not created successfully";
556: }
557: }
558: print "<br />";
559: if ($number_of_files>1) {
560: my $zipfile=$texfile[0];
561: $zipfile=~s/\.tex/\.zip/;
562: my $statement="zip $zipfile";
563: foreach my $file (@texfile) {
564: $file=~s/\.tex/.\pdf/;
565: $statement.=' '.$file;
566: }
567: print("<pre>Zip Output:\n");
568: system($statement);
569: print("</pre>");
570: $zipfile=~s/\/home\/httpd//;
571: print "<br /> A <a href=\"$zipfile\">ZIP file</a> of all the PDFs.";
572: }
573: if ($adv) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
574:
575: my $done;
576: sub REAPER {
577: $done=1;
578: }
579:
580: sub busy_wait_command {
581: my ($command,$message,$progress_win,$output_file)=@_;
582:
583: $SIG{CHLD} = \&REAPER;
584: $done=0;
585: my $pid=open(CMD,"$command |");
586: if ($adv) {
587: &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);
588: }
589: while(!$done) {
590: sleep 1;
591: my $extra_msg;
592: if ($output_file) {
593: my $size=(stat($output_file))[7];
594: $extra_msg=", $size bytes generated";
595: }
596: if ($adv) {
597: &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,
598: $message.$extra_msg);
599: }
600: }
601: $SIG{CHLD}='IGNORE';
602: close(CMD);
603: }
604:
605:
606:
607:
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