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: BEGIN {
29: eval "use Apache2::compat();";
30: };
31: use lib '/home/httpd/lib/perl';
32: use LONCAPA::loncgi;
33: use File::Path;
34: use File::Basename;
35: use IO::File;
36: use Image::Magick;
37: use Apache::lonhtmlcommon;
38: use Apache::lonnet;
39: use Apache::loncommon;
40: use Apache::lonlocal;
41: use Apache::lonmsg;
42: use LONCAPA::Enrollment;
43:
44: use strict;
45:
46:
47: # Determine if a user is operating as a student for this course/domain.
48: #Parameters:
49: # none
50: #Implicit:
51: # $env{request.role} contains the role under which this user operated this
52: # this request.
53: sub is_student {
54: return ($env{'request.role'}=~/^st\./);
55: }
56:
57: #
58: # Debugging: Dump the environment for debugging.
59: #
60: sub dumpenv {
61: print "<br />-------------------<br />";
62: foreach my $key (sort (keys %env)) {
63: print "<br />$key -> $env{$key}";
64: }
65: print "<br />-------------------<br />";
66: }
67:
68: #
69: # This sub sends a message to the appropriate person if there was an error
70: # rendering the latex At present, there's only one case to consider:
71: # a student printing inside a course results in messages to the course coordinator.
72: #Parmaeters:
73: # identifier - The unique identifier of this cgi request.
74: # badresource- Filepath to most likely failing
75: # logfile - The contents of the log file (included in the message).
76: # texfile - reference to an array containing the LaTeX input file
77: # (included in the message).
78: #Implicit inputs:
79: # From the environment:
80: # cgi.$identifier.user - User doing the printing.
81: # cgi.$identifier.domain - Domain the user is logged in on with printing.
82: # cgi.$identifier.courseid - Id of the course (if this is a course).
83: # cgi.$identifier.coursedom- Domain in which course was constituted.
84: # cgi.$identifier.resources - List of resource URL's for which the print
85: # was attempted.
86: #
87: sub send_error_mail {
88: my ($identifier, $badresource, $logfile, $texfile) = @_;
89: my $user = $env{"cgi.$identifier.user"};
90: my $domain = $env{"cgi.$identifier.domain"};
91: my $courseid = $env{"cgi.$identifier.courseid"};
92: my $coursedom= $env{"cgi.$identifier.coursedom"};
93: my $resources= $env{"cgi.$identifier.resources"};
94:
95: # resource file->URL
96: #
97: my $badurl = &Apache::lonnet::declutter($badresource);
98:
99: # &dumpenv();
100:
101:
102:
103: # Only continue if there is a user, domain, courseid, course domain
104: # and resources:
105:
106: if(defined($user) && defined($domain) && defined($courseid) &&
107: defined($coursedom) && defined($resources) ){
108:
109: # Only mail if the conditions are ripe for it:
110: # The user is a student in the course:
111: #
112:
113: if (&is_student()) {
114: # build the subject and message body:
115: # print "sending message to course coordinators.<br />";
116:
117: # Todo: Convert badurl into a url from file path:
118:
119: my $subject = "Error [$badurl] Print failed for $user".'@'.$domain;
120: my $message .= "Print failed to render LaTeX for $user".'@'."$domain\n";
121: $message .= " User was attempting to print: \n";
122: foreach my $resource (split(/:/,$resources)) {
123: $message .= " $resource\n";
124: }
125: $message .= "--------------------LaTeX logfile:------------ \n";
126: $message .= $logfile;
127: $message .= "-----------------LaTeX source file: ------------\n";
128:
129: foreach my $line (@$texfile) {
130: $message .= "$line\n";
131: }
132: my (undef, %receivers) = &Apache::lonfeedback::decide_receiver(undef, 0,
133: 1,1,1);
134: # print "<br /> sending...section: $env{'request.course.sec'}";
135: foreach my $dest (keys %receivers) {
136: # print "<br /> dest is $dest";
137: my @destinfo = split(/:/,$dest);
138: my $user = $destinfo[0];
139: my $dom = $destinfo[1];
140:
141: &Apache::lonmsg::user_normal_msg($user, $dom,
142: $subject, $message);
143:
144: # No point in looking at the return status as there's no good
145: # error action I can think of right now (log maybe?).
146: }
147: }
148: }
149: }
150:
151: $|=1;
152: if (! &LONCAPA::loncgi::check_cookie_and_load_env()) {
153: print <<END;
154: Content-type: text/html
155:
156: <html>
157: <head><title>Bad Cookie</title></head>
158: <body>
159: Your cookie information is incorrect.
160: </body>
161: </html>
162: END
163: return;
164: }
165: &Apache::lonlocal::get_language_handle();
166: &Apache::loncommon::content_type(undef,'text/html');
167: my $bodytag=&Apache::loncommon::bodytag('Creating PDF','','');
168: print $bodytag;
169:
170: my $identifier = $ENV{'QUERY_STRING'};
171: my $texfile = $env{'cgi.'.$identifier.'.file'};
172: my $laystyle = $env{'cgi.'.$identifier.'.layout'};
173: my $numberofcolumns = $env{'cgi.'.$identifier.'.numcol'};
174: my $paper = $env{'cgi.'.$identifier.'.paper'};
175: my $selectionmade = $env{'cgi.'.$identifier.'.selection'};
176: my $tableofcontents = $env{'cgi.'.$identifier.'.tableofcontents'};
177: my $tableofindex = $env{'cgi.'.$identifier.'.tableofindex'};
178: my $advanced_role = $env{'cgi.'.$identifier.'.role'};
179: my $number_of_files = $env{'cgi.'.$identifier.'.numberoffiles'}+1;
180: my $student_names = $env{'cgi.'.$identifier.'.studentnames'};
181: my $backref = &Apache::lonnet::unescape($env{'cgi.'.$identifier.'.backref'});
182:
183:
184: my @names_pack=();
185: if ($student_names=~/_END_/) {
186: @names_pack=split(/_ENDPERSON_/,$student_names);
187: }
188:
189: print "<a href=\"$backref\"><b>Return</b></a> to last resource.<br /><br />";
190:
191: my $figfile = $texfile;
192: $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;
193: my $duefile = $texfile;
194: $duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/;
195: #do we have figures?
196: # print "Figure file: $figfile\n";
197: if (-e $figfile) {
198: # print "$figfile exists\n";
199: my %done_conversion;
200: my $temporary_file=IO::File->new($figfile) || die "Couldn't open fig file $figfile for reading: $!\n";
201: my @content_of_file = <$temporary_file>;
202: close $temporary_file;
203: my $noteps;
204: my %prog_state;
205: if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Coverting Images to EPS','Picture Conversion Status',$#content_of_file,'inline','80'); }
206: print('<br />');
207: foreach my $not_eps (@content_of_file) {
208: chomp($not_eps);
209: if ($not_eps ne '') {
210: # print "Converting $not_eps"; # Debugging.
211: my $status_statement='EPS picture for '.$not_eps;
212: # print "$status_statement\n";
213: $not_eps=~s|\/\.\/|\/|g;
214: my $eps_f = $not_eps;
215: # $eps_f =~ s/\.[^.]*$/\.eps/i;
216: $eps_f .= '.eps'; # Just append the eps ext.
217: if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) {
218: $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/;
219: $eps_f = '/home/httpd/prtspool/'.$eps_f;
220: } elsif ($eps_f=~/$Apache::lonnet::perlvar{'lonDocRoot'}\/res\//) {
221: $eps_f=~m/$Apache::lonnet::perlvar{'lonDocRoot'}\/res\/(.+)/;
222: $eps_f = '/home/httpd/prtspool/'.$1;
223: } elsif ($eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\//) {
224: $eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\/([^\/]+)\/\w\/\w\/\w\/(.+)/;
225: $eps_f = '/home/httpd/prtspool/'.$1.'/'.$2;
226: }
227: $eps_f =~ s/ /\_/g; # Spaces are problematic for system commands and LaTeX.
228: my $path=$eps_f;
229: $path =~ s/\/([^\/]+)\.eps$//;
230: # print "Final file path: $path "; # Debugging
231: File::Path::mkpath($path,0,0777);
232: $not_eps =~ s/^\s+//;
233: $not_eps =~ s/\s+$//;
234: $not_eps =~ s/ /\\ /g;
235: if ( exists($done_conversion{$not_eps})) { next; }
236: if ($advanced_role) {
237: my $prettyname=$not_eps;
238: $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|;
239: $prettyname=~s|$Apache::lonnet::perlvar{'lonDocRoot'}/|/|;
240: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Converting to EPS '.$prettyname);
241: }
242: $done_conversion{$not_eps}=1;
243: # print "Converting $not_eps -> $eps_f"; # Debugging
244: system("convert $not_eps $eps_f");
245: #check is eps exist in prtspool
246: if(not -e $eps_f) {
247: for (my $i=0;$i<10000;$i++) {
248: if (-e $eps_f.'.'.$i) {
249: rename $eps_f.'.'.$i, $eps_f;
250: last;
251: }
252: }
253: }
254: }
255: }
256: if ($advanced_role) {
257: &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state);
258: }
259: unlink($figfile);
260: }
261: #print "$texfile\n"; #name of the tex file for debugging only
262: my @texfile=($texfile);
263: if ($number_of_files>1) {
264: @texfile=();
265: for (my $i=1;$i<=$number_of_files;$i++) {
266: my $new_texfile=$texfile;
267: $new_texfile=~s/\.tex//;
268: $new_texfile = sprintf("%s_%03d.tex", $new_texfile,$i);
269: push @texfile,$new_texfile;
270: }
271: }
272:
273: my $ind=-1;
274: my %prog_state;
275: if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status','Class Print Status',$number_of_files,'inline','80'); }
276: print "<br />";
277: my $num_files = @texfile;
278: foreach $texfile (@texfile) {
279: my $status_statement='';
280: my $link_text='download PDF';
281: $ind++;
282: my @stud_info=split(/_END_/,$names_pack[$ind]);
283: my @tempo_array=split(/:/,$stud_info[0]);
284: my $name;
285: my $name_range='';
286: if ($tempo_array[3]) {
287: $name=$tempo_array[3];
288: ($name_range) = split(/,/,$name, 2);
289: } else {
290: $name=$tempo_array[0].'@'.$tempo_array[1];
291: $name_range = $tempo_array[0];
292: }
293: if (($name ne "") && ($name ne '@') ) { # Could be printing codes...
294: $link_text='<b>'.$name.'</b>';
295: $status_statement.=$name;
296: }
297: if ($#stud_info>0) {
298: @tempo_array=split(/:/,$stud_info[-1]);
299: if ($tempo_array[3]) {
300: $name=$tempo_array[3];
301: my ($lastname) = split(/,/, $name,2);
302: $name_range .= "-".$lastname;
303: } else {
304: $name=$tempo_array[0].'@'.$tempo_array[1];
305: $name_range .= '-'.$tempo_array[0];
306: }
307: if (($name ne "") && ($name ne '@')) {
308: $link_text.=' - <b>'.$name.'</b>';
309: $status_statement.=' - '.$name;
310:
311: }
312: }
313: if(($num_files > 1) && ($link_text eq 'download PDF')) { # Printing codes
314: $link_text = '<b>'.basename($texfile,'.tex').'.pdf</b>';
315: $status_statement .= basename($texfile);
316: }
317: $name_range =~ s/'//g; # O'Neil -> ONeil e.g.
318: print "<br/>";
319: if ($advanced_role) { &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Creating PDF for '.$status_statement); }
320: # This little piece of dirt puts username ranges into the original tex
321: # Tex filename from which they'll propagate into the other filenames as well.
322: #
323: if (-e $texfile) {
324: if (($name_range ne '') && ($num_files > 1)) {
325: my $newtexfile = $texfile;
326: $newtexfile =~ s/\.tex/$name_range\.tex/;
327: rename($texfile, $newtexfile);
328: $texfile = $newtexfile;
329: }
330: $texfile =~ m/^(.*)\/([^\/]+)$/;
331: my $name_file = $2;
332: my $path_file = $1.'/';
333: chdir $path_file;
334: my $dvi_file= $name_file; $dvi_file =~ s/\.tex/$name_range\.dvi/;
335: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
336: "for $status_statement now LaTeXing file",
337: \%prog_state,$dvi_file);
338: if ($tableofcontents eq 'yes') {
339: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
340: "for $status_statement now LaTeXing file for table of contents",
341: \%prog_state,$dvi_file);
342: } #to create table of contents
343: my $idxname=$name_file;
344: $idxname=~s/\.tex$/\.idx/;
345: if ($tableofindex eq 'yes') {
346: &busy_wait_command("makeindex $idxname",
347: "making index file",
348: \%prog_state,$idxname);
349: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
350: "for $status_statement now LaTeXing file for index section",
351: \%prog_state,$dvi_file);
352: } #to create index
353: #Do we have a latex error in the log file?
354: my $logfilename = $texfile; $logfilename =~ s/\.tex$/\.log/;
355: my $temporary_file=IO::File->new($logfilename) || die "Couldn't open log file $logfilename for reading: $!\n";
356: my @content_of_file = <$temporary_file>;
357: close $temporary_file;
358: my $body_log_file = join(' ',@content_of_file);
359: $logfilename =~ s/\.log$/\.html/;
360: $temporary_file = IO::File->new('>'.$logfilename);
361: print $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n";
362: if ($body_log_file=~m/!\s+Emergency stop/) {
363: my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
364: my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
365: my $badresource;
366: my $badtext;
367: if ($whereitbegins!=-1 and $whereitends!=-1) {
368: $badtext = substr($body_log_file,$whereitbegins+26, $whereitends-$whereitbegins-26);
369: $whereitbegins = rindex $badtext,'located in';
370: if ($whereitbegins != -1) {
371:
372: $badresource = substr($badtext, $whereitbegins+27,
373: length($badtext) - $whereitbegins - 48);
374: # print "<br />failing resourcename: $badresource<br />";
375: }
376: }
377:
378: if ($advanced_role) {
379: #LaTeX failed to parse tex file
380: print "<h2>LaTeX could not successfully parse your tex file.</h2>";
381: print "It probably has errors in it.<br />";
382: print "With very high probability this error occured in ".$badtext."<br /><br />";
383: print "Here are the error messages in the LaTeX log file<br /><pre>";
384:
385: my $sygnal = 0;
386: for (my $i=0;$i<=$#content_of_file;$i++) {
387: if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {
388: $sygnal = 1;
389: }
390: if ($content_of_file[$i]=~m/Here is how much of/) {
391: $sygnal = 0;
392: }
393: if ($sygnal) {
394: print "$content_of_file[$i]";
395: }
396: }
397: print "</pre>\n";
398: # print "<br /> Advanced role <br />";
399: print "<b><big>The link to ";
400: $logfilename=~s/\/home\/httpd//;
401: print "<a href=\"$logfilename\">Your log file </a></big></b>";
402: print "\n";
403: #link tooriginal LaTeX file (included according Michael Hamlin desire)
404: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
405: my @tex_content_of_file = <$tex_temporary_file>;
406: close $tex_temporary_file;
407: my $body_tex_file = join(' ',@tex_content_of_file);
408: $texfile =~ s/\.tex$/aaaaa\.html/;
409: $tex_temporary_file = IO::File->new('>'.$texfile);
410: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
411: print "<br /><br />";
412: print "<b><big>The link to ";
413: $texfile=~s/\/home\/httpd//;
414: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
415: print "\n";
416: my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", "Help on printing");
417: print ("$help_text");
418:
419: } else { # Student role...
420: # at this point:
421: # $body_log_file - contains the log file.
422: # $name_file - is the name of the LaTeX file.
423: # $identifier - is the unique LaTeX identifier.l
424:
425: print "<br />There are errors in $badtext";
426: print "<br />These errors prevent this resource from printing correctly";
427: my $tex_handle = IO::File->new($name_file);
428: my @tex_contents = <$tex_handle>;
429: &send_error_mail($identifier, $badresource, $body_log_file, \@tex_contents);
430: print "<br />A message has been sent to the instructor describing this failure<br />";
431: my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", "Help on printing");
432: print ("$help_text");
433:
434: }
435:
436: } elsif ($body_log_file=~m/<inserted text>/) {
437: my $whereitbegins = index $body_log_file,'<inserted text>';
438: print "You are running LaTeX in <b>batch mode</b>.";
439: while ($whereitbegins != -1) {
440: my $tempobegin=$whereitbegins;
441: $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins;
442: my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$whereitbegins;
443: print "<br />It has found an error in".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)." <br /> and corrected it.\n";
444: 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";
445: $whereitbegins = index $body_log_file,'<inserted text>',$tempobegin+10;
446: }
447: $name_file =~ s/\.tex/\.dvi/;
448: my $new_name_file = $name_file;
449: $new_name_file =~ s/\.dvi/\.ps/;
450: my $papera=$paper;
451: if ($papera eq 'letter') {$papera='';}
452: if ($papera ne '') {$papera='-t'.$papera;}
453: my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file";
454: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
455: "for $status_statement now Converting to PS",
456: \%prog_state,$new_name_file);
457: if (-e $new_name_file) {
458: print "<h1>PDF output file (see link below)</h1>\n";
459: $new_name_file =~ m/^(.*)\./;
460: my $ps_file = my $tempo_file = $1.'temporar.ps';
461: my $pdf_file = $1.'.pdf';
462: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
463: my $papera=$paper;
464: if ($papera eq 'letter') {$papera='';}
465: if ($papera ne '') {$papera='-p'.$papera;}
466: $comma = "psnup $papera -2 -s1.0 $new_name_file";
467: &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
468: "for $status_statement now Modifying PS layout",
469: \%prog_state,$tempo_file);
470: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
471: my $papera=$paper;
472: if ($papera eq 'letter') {$papera='';}
473: if ($papera ne '') {$papera='-p'.$papera;}
474: $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"';
475: &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null",
476: "for $status_statement now Modifying PS layout",
477: \%prog_state,$tempo_file);
478:
479: } else {
480: $ps_file=$new_name_file;
481: }
482: &busy_wait_command("ps2pdf $ps_file $pdf_file 1>/dev/null 2>/dev/null",
483: "for $status_statement now Converting PS to PDF",
484: \%prog_state, $pdf_file);
485:
486: my $texlog = $texfile;
487: my $texaux = $texfile;
488: my $texdvi = $texfile;
489: my $texps = $texfile;
490: $texlog =~ s/\.tex/\.log/;
491: $texaux =~ s/\.tex/\.aux/;
492: $texdvi =~ s/\.tex/\.dvi/;
493: $texps =~ s/\.tex/\.ps/;
494: my @garb = ($texaux,$texdvi,$texps);
495: # unlink @garb;
496: unlink $duefile;
497: print "<a href=\"/prtspool/$pdf_file\">Your PDF document</a>";
498: }
499: if ($advanced_role) {
500: print "<br /><br />";
501: print "<b><big>The link to ";
502: $logfilename=~s/\/home\/httpd//;
503: print "<a href=\"$logfilename\">Your log file </a></big></b>";
504: print "\n";
505: #link tooriginal LaTeX file (included according Michael Hamlin desire)
506: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
507: my @tex_content_of_file = <$tex_temporary_file>;
508: close $tex_temporary_file;
509: my $body_tex_file = join(' ',@tex_content_of_file);
510: $texfile =~ s/\.tex$/aaaaa\.html/;
511: $tex_temporary_file = IO::File->new('>'.$texfile);
512: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
513: print "<br /><br />";
514: print "<b><big>The link to ";
515: $texfile=~s/\/home\/httpd//;
516: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
517: print "\n";
518: }
519: } else {
520: #LaTeX successfully parsed tex file
521: $name_file =~ s/\.tex/\.dvi/;
522: my $new_name_file = $name_file;
523: $new_name_file =~ s/\.dvi/\.ps/;
524: my $papera=$paper;
525: if ($papera eq 'letter') {$papera='';}
526: if ($papera ne '') {$papera='-t'.$papera;}
527: my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file";
528: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
529: "for $status_statement now Converting to PS",
530: \%prog_state,$new_name_file);
531: if (-e $new_name_file) {
532: print "<br />";
533: $new_name_file =~ m/^(.*)\./;
534: my $ps_file = my $tempo_file = $1.'temporar.ps';
535: my $pdf_file = $1.'.pdf';
536: $papera=~s/t/p/;
537: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
538: $comma = "psnup $papera -2 -s1.0 $new_name_file";
539: &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
540: "for $status_statement now Modifying PS layout",
541: \%prog_state,$tempo_file);
542: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
543: $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"';
544: &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null",
545: "for $status_statement now Modifying PS layout",
546: \%prog_state,$tempo_file);
547: } else {
548: $ps_file=$new_name_file;
549: }
550: my $addtoPSfile={'legal'=>'<< /PageSize [612 1008] >> setpagedevice',
551: 'tabloid'=>'<< /PageSize [792 1224] >> setpagedevice',
552: 'executive'=>,'<< /PageSize [540 720] >> setpagedevice',
553: 'a2'=>'<< /PageSize [1195.02 1690.09] >> setpagedevice',
554: 'a3'=>'<< /PageSize [842 1195.02] >> setpagedevice',
555: 'a4'=>'<< /PageSize [595.2 842] >> setpagedevice',
556: 'a5'=>'<< /PageSize [421.1 595.2] >> setpagedevice',
557: 'a6'=>'<< /PageSize [298.75 421.1] >> setpagedevice',
558: };
559: if ($paper ne 'letter') {
560: open(FFH,'<',$ps_file) || die "Couldn't open ps file $ps_file for reading: $!\n";
561: my $new_ps_file='new'.$ps_file;
562: open(FFHS,'>',$new_ps_file) || die "Couldn't open new ps file $new_ps_file for reading: $!\n";
563: print FFHS $addtoPSfile->{$paper}."\n";
564: while (<FFH>) {
565: print FFHS $_;
566: }
567: close(FFH);
568: close(FFHS);
569: $ps_file=$new_ps_file;
570: }
571: &busy_wait_command("ps2pdf $ps_file $pdf_file 1>/dev/null 2>/dev/null",
572: "for $status_statement now Converting PS to PDF",
573: \%prog_state,$pdf_file);
574:
575: my $texlog = $texfile;
576: my $texaux = $texfile;
577: my $texdvi = $texfile;
578: my $texps = $texfile;
579: $texlog =~ s/\.tex/\.log/;
580: $texaux =~ s/\.tex/\.aux/;
581: $texdvi =~ s/\.tex/\.dvi/;
582: $texps =~ s/\.tex/\.ps/;
583: my @garb = ($texlog,$texaux,$texdvi,$texps);
584: # unlink @garb;
585: unlink $duefile;
586: print "<a href=\"/prtspool/$pdf_file\">$link_text - click here to download pdf</a>";
587: print "\n";
588: }
589: }
590: } else {
591: print "LaTeX file $texfile was not created successfully";
592: }
593: }
594: print "<br />";
595: if ($number_of_files>1) {
596: my $zipfile=$texfile[0];
597: $zipfile=~s/\.tex/\.zip/;
598: my $statement="zip $zipfile";
599: foreach my $file (@texfile) {
600: $file=~s/\.tex/.\pdf/;
601: $statement.=' '.$file;
602: }
603: print("<pre>Zip Output:\n");
604: system($statement);
605: print("</pre>");
606: $zipfile=~s/\/home\/httpd//;
607: print "<br /> A <a href=\"$zipfile\">ZIP file</a> of all the PDFs.";
608: }
609: if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
610:
611: my $done;
612: sub REAPER {
613: $done=1;
614: }
615:
616: sub busy_wait_command {
617: my ($command,$message,$progress_win,$output_file)=@_;
618:
619: $SIG{CHLD} = \&REAPER;
620: $done=0;
621: my $pid=open(CMD,"$command |");
622: if ($advanced_role) {
623: &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);
624: }
625: while(!$done) {
626: sleep 1;
627: my $extra_msg;
628: if ($output_file) {
629: my $size=(stat($output_file))[7];
630: $extra_msg=", $size bytes generated";
631: }
632: if ($advanced_role) {
633: &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,
634: $message.$extra_msg);
635: }
636: }
637: $SIG{CHLD}='IGNORE';
638: close(CMD);
639: }
640:
641:
642:
643:
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