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