Annotation of loncom/interface/printout.pl, revision 1.157
1.1 sakharuk 1: #!/usr/bin/perl
1.37 albertel 2: # CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc.
3: #
1.157 ! raeburn 4: # $Id: printout.pl,v 1.156 2013/08/14 00:26:29 raeburn Exp $
1.37 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
1.39 sakharuk 29: use lib '/home/httpd/lib/perl';
1.76 albertel 30: use LONCAPA::loncgi;
1.38 sakharuk 31: use File::Path;
1.88 foxr 32: use File::Basename;
1.111 foxr 33: use File::Copy;
1.6 sakharuk 34: use IO::File;
1.7 sakharuk 35: use Image::Magick;
1.97 albertel 36: use Apache::lonhtmlcommon();
1.80 albertel 37: use Apache::lonnet;
1.97 albertel 38: use Apache::loncommon();
1.51 albertel 39: use Apache::lonlocal;
1.97 albertel 40: use Apache::lonmsg();
1.77 foxr 41: use LONCAPA::Enrollment;
1.123 albertel 42: use LONCAPA::Configuration;
1.47 sakharuk 43:
1.59 albertel 44: use strict;
1.77 foxr 45:
1.132 www 46: my $busy_wait_timeout = 30;
1.149 foxr 47: my $pdfs_converted = 0; # non zero if PDF includes (need to fixps).
1.141 foxr 48:
49: my $debugging = 0;
50:
1.135 foxr 51: sub debug {
1.141 foxr 52: if ($debugging) {
53: my ($text) = @_;
54: print "$text <br />\n";
55: }
1.135 foxr 56: }
57:
1.77 foxr 58: # Determine if a user is operating as a student for this course/domain.
59: #Parameters:
1.92 albertel 60: # none
1.77 foxr 61: #Implicit:
62: # $env{request.role} contains the role under which this user operated this
63: # this request.
64: sub is_student {
1.92 albertel 65: return ($env{'request.role'}=~/^st\./);
1.77 foxr 66: }
67:
68: #
69: # Debugging: Dump the environment for debugging.
70: #
71: sub dumpenv {
1.84 albertel 72: print "<br />-------------------<br />";
1.77 foxr 73: foreach my $key (sort (keys %env)) {
1.84 albertel 74: print "<br />$key -> $env{$key}";
1.77 foxr 75: }
1.84 albertel 76: print "<br />-------------------<br />";
1.77 foxr 77: }
78:
79: #
80: # This sub sends a message to the appropriate person if there was an error
81: # rendering the latex At present, there's only one case to consider:
82: # a student printing inside a course results in messages to the course coordinator.
83: #Parmaeters:
84: # identifier - The unique identifier of this cgi request.
1.81 foxr 85: # badresource- Filepath to most likely failing
1.77 foxr 86: # logfile - The contents of the log file (included in the message).
87: # texfile - reference to an array containing the LaTeX input file
88: # (included in the message).
89: #Implicit inputs:
90: # From the environment:
91: # cgi.$identifier.user - User doing the printing.
92: # cgi.$identifier.domain - Domain the user is logged in on with printing.
93: # cgi.$identifier.courseid - Id of the course (if this is a course).
94: # cgi.$identifier.coursedom- Domain in which course was constituted.
95: # cgi.$identifier.resources - List of resource URL's for which the print
96: # was attempted.
97: #
98: sub send_error_mail {
1.81 foxr 99: my ($identifier, $badresource, $logfile, $texfile) = @_;
1.77 foxr 100: my $user = $env{"cgi.$identifier.user"};
101: my $domain = $env{"cgi.$identifier.domain"};
102: my $courseid = $env{"cgi.$identifier.courseid"};
103: my $coursedom= $env{"cgi.$identifier.coursedom"};
104: my $resources= $env{"cgi.$identifier.resources"};
105:
1.81 foxr 106: # resource file->URL
107: #
108: my $badurl = &Apache::lonnet::declutter($badresource);
109:
110: # &dumpenv();
1.77 foxr 111:
112:
113:
114: # Only continue if there is a user, domain, courseid, course domain
115: # and resources:
116:
117: if(defined($user) && defined($domain) && defined($courseid) &&
118: defined($coursedom) && defined($resources) ){
119:
120: # Only mail if the conditions are ripe for it:
121: # The user is a student in the course:
122: #
123:
1.92 albertel 124: if (&is_student()) {
1.77 foxr 125: # build the subject and message body:
1.141 foxr 126: &debug("sending message to course coordinators.");
1.81 foxr 127:
128: # Todo: Convert badurl into a url from file path:
129:
1.154 raeburn 130: my $subject = "Error [$badurl] Print failed for $user".':'.$domain;
131: my $message .= "Print failed to render LaTeX for $user".':'."$domain\n";
1.77 foxr 132: $message .= " User was attempting to print: \n";
1.91 albertel 133: foreach my $resource (split(/:/,$resources)) {
134: $message .= " $resource\n";
135: }
1.77 foxr 136: $message .= "--------------------LaTeX logfile:------------ \n";
137: $message .= $logfile;
138: $message .= "-----------------LaTeX source file: ------------\n";
139:
140: foreach my $line (@$texfile) {
141: $message .= "$line\n";
142: }
1.122 albertel 143: my (undef, %receivers) = &Apache::lonmsg::decide_receiver(undef, 0,
144: 1,1,1);
1.141 foxr 145: &debug("sending...section: $env{'request.course.sec'}");
1.81 foxr 146: foreach my $dest (keys %receivers) {
1.141 foxr 147: &debug("dest is $dest");
1.77 foxr 148: my @destinfo = split(/:/,$dest);
149: my $user = $destinfo[0];
150: my $dom = $destinfo[1];
151:
152: &Apache::lonmsg::user_normal_msg($user, $dom,
153: $subject, $message);
154:
155: # No point in looking at the return status as there's no good
156: # error action I can think of right now (log maybe?).
157: }
158: }
159: }
160: }
161:
1.49 albertel 162: $|=1;
1.39 sakharuk 163: if (! &LONCAPA::loncgi::check_cookie_and_load_env()) {
164: print <<END;
165: Content-type: text/html
166:
167: <html>
168: <head><title>Bad Cookie</title></head>
169: <body>
1.40 sakharuk 170: Your cookie information is incorrect.
1.39 sakharuk 171: </body>
172: </html>
173: END
1.145 raeburn 174: exit;
1.39 sakharuk 175: }
1.123 albertel 176:
177: my %perlvar=%{&LONCAPA::Configuration::read_conf('loncapa.conf')};
1.133 foxr 178: &Apache::lonlocal::get_language_handle();
179: &Apache::loncommon::content_type(undef,'text/html');
1.128 albertel 180: $env{'request.noversionuri'} = '/cgi-bin/printout.pl';
1.143 bisitz 181: # Breadcrumbs
182: #FIXME: Choose better/different breadcrumbs?!? Links?
183: my $brcrum = [{'href' => '',
184: 'text' => 'Helper'}, #FIXME: Different origin possible than print out helper?
185: {'href' => '',
186: 'text' => 'Preparing Printout'},
187: {'href' => '',
188: 'text' => 'Creating PDF'}];
189: print(&Apache::loncommon::start_page('Creating PDF',
190: undef,
191: {'bread_crumbs' => $brcrum,}));
1.133 foxr 192:
193: my $identifier = $ENV{'QUERY_STRING'};
194: my $texfile = $env{'cgi.'.$identifier.'.file'};
195: my $laystyle = $env{'cgi.'.$identifier.'.layout'};
196: my $numberofcolumns = $env{'cgi.'.$identifier.'.numcol'};
197: my $paper = $env{'cgi.'.$identifier.'.paper'};
198: my $selectionmade = $env{'cgi.'.$identifier.'.selection'};
199: my $tableofcontents = $env{'cgi.'.$identifier.'.tableofcontents'};
200: my $tableofindex = $env{'cgi.'.$identifier.'.tableofindex'};
201: my $advanced_role = $env{'cgi.'.$identifier.'.role'};
202: my $number_of_files = $env{'cgi.'.$identifier.'.numberoffiles'}+1;
203: my $student_names = $env{'cgi.'.$identifier.'.studentnames'};
204: my $backref = &Apache::lonnet::unescape($env{'cgi.'.$identifier.'.backref'});
205:
206:
207: my @names_pack=();
208: if ($student_names=~/_END_/) {
209: @names_pack=split(/_ENDPERSON_/,$student_names);
210: }
211: if ($backref) {
212: print('<p>'.&mt("[_1]Return[_2] to editing resource.",
213: "<a href=\"$backref\"><b>","</b></a>").'</p>');
214: }
215: my $figfile = $texfile;
216: $figfile =~ s/^(.*_printout)_\d+_\d+_\d+\.tex/$1\.dat/;
217: my $duefile = $texfile;
218: $duefile =~ s/^(.*_printout)_\d+_\d+_\d+\.tex/$1\.due/;
219:
220:
221: #-------------------------------------------------------------------------------------
222: #
223: # Each print may have associated with it a file that contains a set of figures
224: # that need to be converted to .eps from whatever form they were in when included
225: # in the resource. The name of the figure file is in $figfile. If it exists,
226: # it contains the names of the files that need to be converted, one per line.
227: #
228:
1.141 foxr 229: &debug("Figure file is $figfile");
230:
1.133 foxr 231: if (-e $figfile) {
1.141 foxr 232: &debug( "Figure file exists");
233: &debug("$figfile exists");
1.133 foxr 234: my %done_conversion;
235: my $temporary_file=IO::File->new($figfile) || die "Couldn't open fig file $figfile for reading: $!\n";
236: my @content_of_file = <$temporary_file>;
237: close $temporary_file;
238: my $noteps;
239: my %prog_state;
1.151 www 240: if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('',$#content_of_file); }
1.133 foxr 241: print('<br />');
242: foreach my $not_eps (@content_of_file) {
243: chomp($not_eps);
1.141 foxr 244: &debug( "Being asked to convert $not_eps");
1.133 foxr 245: if ($not_eps ne '') {
246: $not_eps=~s|\/\.\/|\/|g;
247: if (!$done_conversion{$not_eps}) { # Only convert multiple includes once.
248: &convert_figure($not_eps);
249: $done_conversion{$not_eps} = 1;
250: }
251: }
252: }
253: if ($advanced_role) {
254: &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state);
255: }
256: unlink($figfile);
257: }
258: # End of figure conversion section:
259: #
260: #--------------------------------------------------------------------------------------------
1.135 foxr 261: #
262: # Figure out which Tex files we need to process. If this is a large class e.g.
263: # the instructor may have asked that the printout be by section, one section per file
264: # in that case, the output tex fiels will be the base filename with 3 digit serial numbers
265: # just prior to the .tex file type.
266: # By the time this loop exits, @texfile is an array of the files to process.
267: #
1.133 foxr 268:
1.135 foxr 269: my @texfile=($texfile);
270: if ($number_of_files>1) {
271: @texfile=();
272: for (my $i=1;$i<=$number_of_files;$i++) {
273: my $new_texfile=$texfile;
274: $new_texfile=~s/\.tex//;
275: $new_texfile = sprintf("%s_%03d.tex", $new_texfile,$i);
276: push @texfile,$new_texfile;
277: }
278: }
1.39 sakharuk 279:
1.135 foxr 280: #--------------------------------------------------------------------------------------------
1.43 sakharuk 281:
1.135 foxr 282: my $ind=-1;
1.98 albertel 283:
1.49 albertel 284: my %prog_state;
1.135 foxr 285: if ($advanced_role) {
1.151 www 286: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('',$number_of_files);
1.135 foxr 287: }
1.61 albertel 288: print "<br />";
1.135 foxr 289: my $num_files = @texfile; # How does this differ from $number_of_files , can that be 0?
290:
291:
292:
293:
1.43 sakharuk 294: foreach $texfile (@texfile) {
1.49 albertel 295: my $status_statement='';
296: my $link_text='download PDF';
297: $ind++;
1.135 foxr 298:
299: #---------------------------------------------------------------------------------------
300: # This chunk of code
301: # determines the status message for the printout, and the download link text.
302: # If the print is for one or more students, both will contain the range of students
303: # covered by this file.
304: #
305:
1.49 albertel 306: my @stud_info=split(/_END_/,$names_pack[$ind]);
1.135 foxr 307: my @tempo_array=split(/:/,$stud_info[0]); # username:domain:section:full name:...
1.49 albertel 308: my $name;
1.88 foxr 309: my $name_range='';
1.135 foxr 310:
1.154 raeburn 311: # $name -> Either user's full name or username:domain
1.135 foxr 312: # $name_range -> Either user's last name or usrname.
313:
1.49 albertel 314: if ($tempo_array[3]) {
315: $name=$tempo_array[3];
1.157 ! raeburn 316: $name =~ s{^\s+|\s+$}{}g;
! 317: if ($name =~ /,/) {
! 318: ($name_range) = split(/,/,$name, 2);
! 319: } elsif ($name =~ /\s/) {
! 320: $name_range = $name;
! 321: $name_range =~ s/\s+/_/;
! 322: } else {
! 323: $name_range = $name;
! 324: }
! 325: $name_range =~ s/[^\w\:\-]+//g;
1.49 albertel 326: } else {
1.154 raeburn 327: $name=$tempo_array[0].':'.$tempo_array[1];
1.88 foxr 328: $name_range = $tempo_array[0];
329: }
1.135 foxr 330:
331: # If there truly is a name add it to the status text so we know which
332: # user is getting printed.
333: #
334:
1.154 raeburn 335: if (($name ne "") && ($name ne ':') ) { # Could be printing codes...
1.88 foxr 336: $link_text='<b>'.$name.'</b>';
337: $status_statement.=$name;
1.49 albertel 338: }
1.135 foxr 339:
340: # Group of students being printed...
341: # $name_range -> first student's name - last student's name
342: #
343:
1.49 albertel 344: if ($#stud_info>0) {
345: @tempo_array=split(/:/,$stud_info[-1]);
1.48 albertel 346: if ($tempo_array[3]) {
347: $name=$tempo_array[3];
1.157 ! raeburn 348: $name =~ s{^\s+|\s+$}{}g;
! 349: my $lastname;
! 350: if ($name =~ /,/) {
! 351: ($lastname) = split(/,/, $name,2);
! 352: } elsif ($name =~ /\s/) {
! 353: $lastname = $name;
! 354: $lastname =~ s/\s+/_/;
! 355: } else {
! 356: $lastname = $name;
! 357: }
1.89 foxr 358: $name_range .= "-".$lastname;
1.157 ! raeburn 359: $name_range =~ s/[^\w\:\-]+//g;
1.48 albertel 360: } else {
1.154 raeburn 361: $name=$tempo_array[0].':'.$tempo_array[1];
1.88 foxr 362: $name_range .= '-'.$tempo_array[0];
363: }
1.154 raeburn 364: if (($name ne "") && ($name ne ':')) {
1.88 foxr 365: $link_text.=' - <b>'.$name.'</b>';
366: $status_statement.=' - '.$name;
367:
1.48 albertel 368: }
1.88 foxr 369: }
1.135 foxr 370:
371: # $name_range is the range of names in this file.
372: # $name is the first of the names in this file.
373: #
374: #-----------------------------------------------------------------------
375:
376: # If the number of files is > 1, but we don't have multiple
377: # student names, we must be printing an exam from codes.
378: # The download link becomes the filename (basename.tex
379: # The status info has the basename appended to it.
380: #
381: if(($num_files > 1) && ($link_text eq 'download PDF')) {
1.88 foxr 382: $link_text = '<b>'.basename($texfile,'.tex').'.pdf</b>';
383: $status_statement .= basename($texfile);
384: }
1.135 foxr 385:
386:
387: #------------------------------------------------------------------------
388:
1.88 foxr 389: $name_range =~ s/'//g; # O'Neil -> ONeil e.g.
1.135 foxr 390:
391:
1.88 foxr 392: print "<br/>";
1.135 foxr 393: if ($advanced_role) {
1.151 www 394: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,&mt('Creating PDF for: [_1]',$status_statement));
1.135 foxr 395: }
396:
397: if (-e $texfile) { # Ensure the tex file exists:
398:
399: #---------------------------------------------------------------------
400: #
401: # Put username ranges into the original tex
402: # Tex filename from which they'll propagate into the other filenames as well.
403: #
404:
1.88 foxr 405: if (($name_range ne '') && ($num_files > 1)) {
406: my $newtexfile = $texfile;
407: $newtexfile =~ s/\.tex/$name_range\.tex/;
408: rename($texfile, $newtexfile);
409: $texfile = $newtexfile;
410: }
1.135 foxr 411:
412: #---------------------------------------------------------------------
413:
1.29 sakharuk 414: $texfile =~ m/^(.*)\/([^\/]+)$/;
415: my $name_file = $2;
416: my $path_file = $1.'/';
417: chdir $path_file;
1.132 www 418: my $dvi_file= $name_file; $dvi_file =~ s/\.tex$/\.dvi/;
1.135 foxr 419: &make_dvi_file($name_file,
420: $dvi_file,
421: $tableofcontents,
422: $tableofindex,
423: $status_statement,
424: \%prog_state,
425: $busy_wait_timeout);
1.90 foxr 426:
427:
1.135 foxr 428: #Do we have a latex error in the log file?
1.35 sakharuk 429:
1.105 foxr 430:
1.135 foxr 431: my $logfilename = $texfile; $logfilename =~ s/\.tex$/\.log/;
1.115 foxr 432:
1.63 sakharuk 433:
1.135 foxr 434: if (&analyze_logfile($logfilename, $texfile, $advanced_role)) {
435:
1.119 foxr 436:
1.29 sakharuk 437: #LaTeX successfully parsed tex file
438: $name_file =~ s/\.tex/\.dvi/;
439: my $new_name_file = $name_file;
440: $new_name_file =~ s/\.dvi/\.ps/;
1.67 sakharuk 441: my $papera=$paper;
1.62 sakharuk 442: if ($papera eq 'letter') {$papera='';}
443: if ($papera ne '') {$papera='-t'.$papera;}
1.139 foxr 444: my $extra_ps_header = $perlvar{'lonLib'} .'/includepsheader.ps';
445: my $comma = "dvips $papera -h $extra_ps_header -Ppdf -G0 -o $new_name_file";
1.59 albertel 446: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
447: "for $status_statement now Converting to PS",
448: \%prog_state,$new_name_file);
1.115 foxr 449: #
450: # One last little hinky kinky thing.
451: # It's just possible that some fonts could not be maded
452: # at the resolution of the pdf print driver.
453: # In that case a file called missfont.log will have been
454: # created that will contain the commands that were attempted
455: # to create the missing fonts. If we basically
456: # take all the 8000 strings in that file, and
457: # replace them with 600 (the ljfour resolution)
458: # run the commands in that file and redvips,
459: # we'll be able to print the missing glyphs at 600dpi.
460: #
461: # Supposedly it is possible to tune TeX/Metafont to do this
462: # right but I failed to get that to work when following the
463: # docs at the tug site, hence this rather kludgey fix.
464: #
1.135 foxr 465:
1.115 foxr 466: my $print_directory = dirname($name_file);
467: my $missfonts_file = $print_directory."/missfont.log";
1.116 albertel 468: #print("<br /> Missing fonts file is: $missfonts_file");
1.115 foxr 469: if (-e $missfonts_file) {
1.116 albertel 470: #print("<br />Missing fonts file exists\n");
1.124 albertel 471: &create_missing_fonts($missfonts_file,\%prog_state);
1.118 albertel 472: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
1.115 foxr 473: "for $status_statement dvips generated missing fonts",
474: \%prog_state, $new_name_file);
475: }
1.29 sakharuk 476: if (-e $new_name_file) {
1.102 foxr 477: my $latex_file = $name_file;
478: $latex_file =~ s/\.dvi/\.tex/;
479: &repaginate($new_name_file, $latex_file, $numberofcolumns);
1.135 foxr 480:
481: &make_dvi_file($latex_file,
482: $name_file,
483: $tableofcontents,
484: $tableofindex,
485: $status_statement,
486: \%prog_state,
487: $busy_wait_timeout);
488:
489:
1.102 foxr 490: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
491: "for $status_statement dvips to repaginate",
492: \%prog_state, $new_name_file);
1.115 foxr 493:
1.61 albertel 494: print "<br />";
1.29 sakharuk 495: $new_name_file =~ m/^(.*)\./;
1.59 albertel 496: my $ps_file = my $tempo_file = $1.'temporar.ps';
497: my $pdf_file = $1.'.pdf';
1.82 albertel 498: $papera=~s/t/p/;
1.148 foxr 499: #----
500: # The code below uses fixps to make pdf include in sequences work.
501: #
502: # $comma = "fixps --force $new_name_file";
503: # &debug("FIXPS command: $comma");
504: # &busy_wait_command("$comma 1>$tempo_file 2>/dev/null",
505: # "for $status_statement now validating PS",
506: # \%prog_state,$tempo_file);
507:
508: #---
509: # The code below uses gs to make pdf includes in sequences work
510:
511: # Use gs to fix the postscript -> level 1.5
1.149 foxr 512: # .. if pdfs were included
1.148 foxr 513:
1.149 foxr 514: if ($pdfs_converted > 0) {
515: $comma = "gs -sDEVICE=pswrite -dLanguageLevel=1.5 ";
516: &busy_wait_command("$comma -o $tempo_file $new_name_file 2>/dev/null 1>/dev/null",
517: "for $status_statement now validating PS",
518: \%prog_state, $tempo_file);
519:
1.148 foxr 520: #---
1.149 foxr 521: &busy_wait_command("mv $tempo_file $new_name_file",
522: 'File move', \%prog_state, $new_name_file);
523: }
1.29 sakharuk 524: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
1.144 raeburn 525: $comma = "psnup $papera -2 -s1.0 $new_name_file";
1.141 foxr 526: &debug("PSNUP command: $comma");
1.144 raeburn 527: &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
1.59 albertel 528: "for $status_statement now Modifying PS layout",
529: \%prog_state,$tempo_file);
1.29 sakharuk 530: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
1.144 raeburn 531: $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)" '.$new_name_file;
1.141 foxr 532: &debug("PSTOPS command: $comma ");
1.144 raeburn 533: &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
1.59 albertel 534: "for $status_statement now Modifying PS layout",
535: \%prog_state,$tempo_file);
1.29 sakharuk 536: } else {
1.59 albertel 537: $ps_file=$new_name_file;
538: }
1.67 sakharuk 539: my $addtoPSfile={'legal'=>'<< /PageSize [612 1008] >> setpagedevice',
540: 'tabloid'=>'<< /PageSize [792 1224] >> setpagedevice',
541: 'executive'=>,'<< /PageSize [540 720] >> setpagedevice',
542: 'a2'=>'<< /PageSize [1195.02 1690.09] >> setpagedevice',
543: 'a3'=>'<< /PageSize [842 1195.02] >> setpagedevice',
544: 'a4'=>'<< /PageSize [595.2 842] >> setpagedevice',
545: 'a5'=>'<< /PageSize [421.1 595.2] >> setpagedevice',
546: 'a6'=>'<< /PageSize [298.75 421.1] >> setpagedevice',
547: };
548: if ($paper ne 'letter') {
1.69 matthew 549: open(FFH,'<',$ps_file) || die "Couldn't open ps file $ps_file for reading: $!\n";
1.63 sakharuk 550: my $new_ps_file='new'.$ps_file;
1.69 matthew 551: open(FFHS,'>',$new_ps_file) || die "Couldn't open new ps file $new_ps_file for reading: $!\n";
1.67 sakharuk 552: print FFHS $addtoPSfile->{$paper}."\n";
1.63 sakharuk 553: while (<FFH>) {
554: print FFHS $_;
555: }
1.62 sakharuk 556: close(FFH);
1.63 sakharuk 557: close(FFHS);
558: $ps_file=$new_ps_file;
1.62 sakharuk 559: }
1.141 foxr 560: &busy_wait_command("ps2pdf13 $ps_file $pdf_file 1>/dev/null 2>/dev/null",
1.59 albertel 561: "for $status_statement now Converting PS to PDF",
562: \%prog_state,$pdf_file);
563:
1.29 sakharuk 564: my $texlog = $texfile;
565: my $texaux = $texfile;
566: my $texdvi = $texfile;
567: my $texps = $texfile;
568: $texlog =~ s/\.tex/\.log/;
569: $texaux =~ s/\.tex/\.aux/;
570: $texdvi =~ s/\.tex/\.dvi/;
571: $texps =~ s/\.tex/\.ps/;
572: my @garb = ($texlog,$texaux,$texdvi,$texps);
1.22 sakharuk 573: # unlink @garb;
1.120 albertel 574: unlink($duefile);
1.153 bisitz 575: print
576: '<p>'
577: .&mt('[_1] - [_2]Your PDF file[_3] is ready for download.',
578: $link_text,'<a href="/prtspool/'.$pdf_file.'">','</a>')
579: .'</p>'."\n";
1.29 sakharuk 580: }
1.120 albertel 581: unlink($missfonts_file);
1.119 foxr 582:
1.63 sakharuk 583: }
1.29 sakharuk 584: } else {
1.153 bisitz 585: print
586: '<p class="LC_error">'
587: .&mt('The LaTeX file [_1] was not created successfully.',
588: '<span class="LC_filename">'.$texfile.'</span>')
589: .'</p>';
1.14 sakharuk 590: }
1.43 sakharuk 591: }
1.45 sakharuk 592: print "<br />";
1.44 sakharuk 593: if ($number_of_files>1) {
1.45 sakharuk 594: my $zipfile=$texfile[0];
595: $zipfile=~s/\.tex/\.zip/;
596: my $statement="zip $zipfile";
1.44 sakharuk 597: foreach my $file (@texfile) {
1.45 sakharuk 598: $file=~s/\.tex/.\pdf/;
599: $statement.=' '.$file;
1.44 sakharuk 600: }
1.153 bisitz 601: print('<p>'.&mt('Zip Output:')."\n<pre>\n");
1.49 albertel 602: system($statement);
1.153 bisitz 603: print("</pre></p>\n");
1.123 albertel 604: $zipfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
1.153 bisitz 605: print
606: '<p>'
607: .&mt('A [_1]ZIP file[_2] of all the PDF files is ready for download.',
608: '<a href="'.$zipfile.'">','</a>')
609: .'</p>';
1.44 sakharuk 610: }
1.92 albertel 611: if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
1.97 albertel 612: print(&Apache::loncommon::end_page());
1.59 albertel 613: my $done;
1.102 foxr 614:
1.59 albertel 615: sub REAPER {
616: $done=1;
617: }
1.129 foxr 618: #
619: # Execute a command updating the status window as the command's
620: # output file builds up (at intervals of a second).
621: #
622: # If the timeout argument defined, then if that many seconds
623: # elapses without an increase in the size of the output file,
624: # the command will be killed (this deals with the case when
625: # latex crawls into an infinite loop).
626: #
1.59 albertel 627: sub busy_wait_command {
1.129 foxr 628: my ($command,$message,$progress_win,$output_file, $timeout)=@_;
1.59 albertel 629:
630: $SIG{CHLD} = \&REAPER;
631: $done=0;
632: my $pid=open(CMD,"$command |");
1.92 albertel 633: if ($advanced_role) {
1.60 albertel 634: &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);
635: }
1.129 foxr 636: my $last_size = 0;
637: my $unchanged_time = 0;
1.59 albertel 638: while(!$done) {
639: sleep 1;
640: my $extra_msg;
641: if ($output_file) {
642: my $size=(stat($output_file))[7];
643: $extra_msg=", $size bytes generated";
1.129 foxr 644: if ($size == $last_size) {
645: $unchanged_time++;
646: if ($timeout && ($unchanged_time > $timeout)) {
1.152 golterma 647: print '<p class="LC_error">'.&mt('Operation timed out!')."</p>\n";
1.131 www 648: print "<p>Executing $command, the output file $output_file did not grow\n";
1.130 foxr 649: print "after $timeout seconds. This <em>may</em> indicate $command\n";
1.131 www 650: print "is in an infinite loop.\n";
651: print "See if printing fewer copies helps. Please contact LON-CAPA\n";
652: print "support about this in any event.";
1.130 foxr 653: print "</p>";
1.129 foxr 654: kill(9, $pid); # Reaper will do the rest...I hope there's errors in the log.
655: }
656: } else {
657: $last_size = $size;
658: $unchanged_time = 0;
659: }
1.59 albertel 660: }
1.92 albertel 661: if ($advanced_role) {
1.151 www 662: &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message.$extra_msg);
1.60 albertel 663: }
1.59 albertel 664: }
665: $SIG{CHLD}='IGNORE';
666: close(CMD);
667: }
1.1 sakharuk 668:
1.135 foxr 669: # Make the dvi file (or rather try to), from the latex file and the
670: # various bits and pieces that control how the latex file is processed:
671: # LaTeX is run as many times a needed to make this all happen... this may
672: # result in several runs of LaTeX that just are errors if the LaTeX is
1.136 bisitz 673: # bad, but the printing subsystem is _supposed_ to not do that.
1.135 foxr 674: #
675: # Parameters:
676: # name_file - Name of the LaTeX file to process.
677: # dvi_file - Name of resulting dvi file.
678: # tableofcontents - "yes" if we are supposed to make a table of contents.
679: # tableofindex - "yes" if we are suposed to make an index.
680: # status_statement - Part of the status statement for ths status window.
681: # prog_state - Reference to the program state hash.
682: # busy_wait_timeout- Seconds without any progress that imply a problem.
683: #
684: #
685: sub make_dvi_file {
686: my ($name_file,
687: $dvi_file,
688: $tableofcontents,
689: $tableofindex,
690: $status_statement,
691: $prog_state,
692: $busy_wait_timeout) = @_;
693:
694:
695: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
696: "for $status_statement now LaTeXing file",
697: $prog_state,$dvi_file, $busy_wait_timeout);
698:
699: # If the tableof contents was requested, we need to run
700: # LaTex a couple more times to get all the references sorted out.
701:
702: if ($tableofcontents eq 'yes') {
703: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
704: "for $status_statement First LaTeX of file for table of contents",
705: $prog_state,$dvi_file, $busy_wait_timeout);
706: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
707: "for $status_statement Second LaTeX of file for table of contents",
708: $prog_state,$dvi_file,$busy_wait_timeout);
709: }
710:
711: # And makeindex and another run of LaTeX to incorporate it if the index
712: # is enabled.
713:
714:
715: if ($tableofindex eq 'yes') {
716: my $idxname=$name_file;
717: $idxname=~s/\.tex$/\.idx/;
718: &busy_wait_command("makeindex $idxname",
719: "making index file",
720: $prog_state,$idxname);
721: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
722: "for $status_statement now LaTeXing file for index section",
723: $prog_state,$dvi_file, $busy_wait_timeout);
724: }
725:
726: }
727:
728:
1.102 foxr 729: # Repagninate
1.99 foxr 730: # What we need to do:
731: # - Count the number of pages in each student.
1.102 foxr 732: # - Rewrite the latex file replacing the \specials that
733: # mark the end of student with an appropriate number of newlines.
734: # parameters:
735: # psfile - Postscript filename
736: # latexfile - LaTeX filename
737: # columns - number of columns.
738: sub repaginate {
1.100 foxr 739:
740: # We will try to do this in 2 passes through the postscript since
741: # the postscript is potentially large, to do 2 passes, the first pass
742: # must be able to calculate the total number of document pages so that
743: # at the beginning of the second pass we already know how to replace
744: # %%Pages:
745:
746: # Figure out
747: # 1. Number of pages in the document
748: # 2. Maximum number of pages in a student
749: # 3. Number of pages in each student.
1.99 foxr 750:
1.102 foxr 751: my ($postscript_filename, $latex_filename, $num_columns) = @_;
1.99 foxr 752: open(PSFILE, "<$postscript_filename");
1.100 foxr 753: my $line;
754: my $total_pages; # Total pages in document.
755: my $seen_pages = 0; # There are several %%Pages only the first is useful
756: my @pages_in_student; # For each student his/her initial page count.
757: my $max_pages = 0; # Pages in 'longest' student.
1.102 foxr 758: my $page_number = 0;
1.151 www 759: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,&mt("Counting pages for student: [_1]",1));
1.104 foxr 760:
1.100 foxr 761: while ($line = <PSFILE>) {
762:
763: # Check for total pages (%%Pages:)
764:
1.101 albertel 765: if (($line =~ /^%%Pages:/) && (!$seen_pages)) {
1.100 foxr 766: my @pageinfo = split(/ /,$line);
767: $total_pages = $pageinfo[1];
768: $seen_pages = 1;
769: }
770: # Check for %%Page: n m $page_number will be the
771: # biggest of these until we see an endofstudent.
772: # Note that minipages generate spurious %Page: 1 1's so
773: # we only are looking for the largest n (n is page number at the
774: # bottom of the page, m the page number within the document.
775: #
1.102 foxr 776:
1.127 albertel 777: if ($line =~ /^%%Page:\s+\d+\s+\d+/) {
1.120 albertel 778: my @pageinfo = split(/\s+/, $line);
1.100 foxr 779: if ($page_number < $pageinfo[1]) {
780: $page_number = $pageinfo[1];
1.110 albertel 781: } elsif ($pageinfo[2] ne 1) {
782: # current page count reset, and it's not because of a
783: # minipage
784: # - save the page_number, reset and, if necessary
785: # update max_pages.
786: push(@pages_in_student, $page_number);
1.151 www 787: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,&mt("Counting pages for student: [_1]", scalar(@pages_in_student)));
1.110 albertel 788: if ($page_number > $max_pages) {
789: $max_pages = $page_number;
790: }
791: $page_number = $pageinfo[1];
1.100 foxr 792: }
793: }
794:
795:
796: }
1.110 albertel 797: # file ended so one more student
798: push(@pages_in_student, $page_number);
1.151 www 799: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,&mt("Counting pages for student: [_1]",scalar(@pages_in_student)));
1.110 albertel 800: if ($page_number > $max_pages) {
801: $max_pages = $page_number;
802: }
803: $page_number = 0;
804:
1.99 foxr 805: close(PSFILE);
1.102 foxr 806:
807: # If 2 columns, max_pages must go to an even number of columns:
1.103 foxr 808:
1.102 foxr 809:
810: if ($num_columns == 2) {
811: if ($max_pages % 2) {
812: $max_pages++;
813: }
814: }
1.100 foxr 815:
1.102 foxr 816: # Now rewrite the LaTex file, substituting our \special
817: # with an appropriate number of \newpage directives.
818:
819: my $outfilename = $latex_filename."temp";
820:
821: open(LATEXIN, "<$latex_filename");
822: open(LATEXOUT, ">$outfilename");
823:
824:
1.110 albertel 825: my $student_number = 0; # Index of student we're working on.
1.151 www 826: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,&mt("Repaginating student: [_1]",$student_number+1));
1.102 foxr 827:
828: while (my $line = <LATEXIN>) {
829: if ($line eq "\\special{ps:ENDOFSTUDENTSTAMP}\n") {
830: # only end of student stamp if next line is ENDOFSTUDENTSTAMP:
831:
832:
833: # End of student replace with 0 or more newpages.
834:
835: my $addlines = $max_pages - $pages_in_student[$student_number];
836: while($addlines) {
1.108 albertel 837: print LATEXOUT '\clearpage \strut \clearpage';
1.105 foxr 838:
1.102 foxr 839: $addlines--;
1.100 foxr 840: }
1.102 foxr 841:
1.100 foxr 842: $student_number++;
1.151 www 843: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,&mt("Repaginating student: [_1]",$student_number+1));
1.102 foxr 844:
845: } else {
846: print LATEXOUT $line;
1.100 foxr 847: }
848: }
849:
1.102 foxr 850: close(LATEXIN);
851: close(LATEXOUT);
1.108 albertel 852: rename($outfilename, $latex_filename);
1.100 foxr 853:
1.99 foxr 854: }
1.4 sakharuk 855:
1.115 foxr 856: #
857: # Create missing fonts given a latex missfonts.log file.
858: # This file will have lines like:
859: #
860: # mktexpk --mfmode ljfour --bdpi 8000 --mag 1+0/8000 --dpi 8000 tcrm0500
861: #
862: # We want to execute those lines with the 8000's changed to 600's
863: # in order to match the resolution of the ljfour printer.
864: # Of course if some wiseguy has changed the default printer from ljfour
865: # in the dvips's config.ps file that will break so we'll also
866: # ensure that --mfmode is ljfour.
867: #
868: sub create_missing_fonts {
869: my ($fontfile, $state) = @_;
870:
871: # Open and read in the font file..we'll read it into the array
872: # font_commands.
873: #
1.118 albertel 874: open(my $font_handle, $fontfile);
1.115 foxr 875: my @font_commands = <$font_handle>;
1.118 albertel 876:
877: # make the list contain each command only once
878: my %uniq;
879: @font_commands = map { $uniq{$_}++ == 0 ? $_ : () } @font_commands;
1.115 foxr 880:
881: # Now process each command replacing the appropriate 8000's with
882: # 600's ensuring that font names with 8000's in them are not corrupted.
883: # and if the --mfmode is not ljfour we turn it into ljfour.
884: # Then we execute the command.
885: #
1.118 albertel 886:
1.115 foxr 887: foreach my $command (@font_commands) {
1.116 albertel 888: #print("<br />Raw command: $command");
1.115 foxr 889: $command =~ s/ 8000/ 600/g; # dpi directives.
890: $command =~ s/\/8000/\/600/g; # mag directives.
1.116 albertel 891: #print("<br />After dpi replacements: $command");
1.115 foxr 892:
893: my @cmdarray = split(/ /,$command);
894: for (my $i =0; $i < scalar(@cmdarray); $i++) {
895: if ($cmdarray[$i] eq '--mfmode') {
896: $cmdarray[$i+1] = "ljfour";
897: }
898: }
1.116 albertel 899: #print("<br /> before reassembly : (@cmdarray)");
1.115 foxr 900: $command = join(" ", (@cmdarray));
901:
1.116 albertel 902: #print("<br />Creating fonts via command: $command");
1.118 albertel 903: &busy_wait_command("$command 1>/dev/null 2>/dev/null",
1.115 foxr 904: "Creating missing font",
1.124 albertel 905: $state);
1.115 foxr 906:
907: }
908:
909: }
1.133 foxr 910: #
911: # Convert a figure file to encapsulated postscript:
912: # At present, this is using a lot of file scoped globals to pass data around.
913: # Parameters:
914: # not_eps - The name of the file to convert which, presumably, is not
915: # already an eps file.
916: #
917: sub convert_figure {
918: my ($not_eps) = @_;
1.141 foxr 919: &debug("in convert_figure");
1.133 foxr 920:
921: my $status_statement='EPS picture for '.$not_eps;
922: my $eps_f = $not_eps;
1.134 foxr 923:
1.150 www 924: if ($eps_f=~/\/home\/httpd\/html\/priv\/[^\/]+\/([^\/]+)\//) {
925: $eps_f=~s/\/home\/httpd\/html\/priv\/[^\/]+\/([^\/]+)/$1/;
1.133 foxr 926: } elsif ($eps_f=~/$perlvar{'lonDocRoot'}\/res\//) {
1.134 foxr 927: $eps_f=~ s/$perlvar{'lonDocRoot'}\/res\/(.+)/$1/;
1.133 foxr 928: } elsif ($eps_f=~/$perlvar{'lonUsersDir'}\//) {
1.134 foxr 929: $eps_f=~ s/$perlvar{'lonUsersDir'}\/([^\/]+)\/\w\/\w\/\w\/(.+)/$1\/$2/;
1.133 foxr 930: }
1.134 foxr 931:
932: $eps_f = $perlvar{'lonPrtDir'}.'/'.$eps_f;
933:
934: # Spaces are problematic for system commands and LaTeX, replace with _
935:
936: $eps_f =~ s/ /\_/g;
937:
1.133 foxr 938: #
1.134 foxr 939: # If the file is already an .eps or .ps file (eps_f still has the original
940: # file type),
1.133 foxr 941: # We really just need to copy it from where it was to prtspool
942: # but with the spaces substituted to _'s.
943: #
1.134 foxr 944: my ($nsname,$path, $sext) = &fileparse($eps_f, qr/\.(ps|eps)/i);
1.133 foxr 945: if ($sext =~/ps$/i) {
946: &File::Path::mkpath($path,0,0777);
947: copy("$not_eps", "$eps_f");
948: } else {
949:
950: $eps_f .= '.eps'; # Just append the eps ext.
1.134 foxr 951: my $path= &dirname($eps_f);
1.133 foxr 952: &File::Path::mkpath($path,0,0777);
953: $not_eps =~ s/^\s+//;
954: $not_eps =~ s/\s+$//;
955: $not_eps =~ s/ /\\ /g;
1.147 droeschl 956: my $prettyname=$not_eps;
1.133 foxr 957: if ($advanced_role) {
958: $prettyname=~s|$perlvar{'lonDocRoot'}/|/|;
1.151 www 959: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,&mt('Converting to EPS: [_1]',$prettyname));
1.133 foxr 960: }
1.141 foxr 961: #
962: # If the file is a PDF, need to use pdftops to convert it to a ps file.
963: # otherwise use imagemagik:
964: #
965: if($not_eps =~/\.(pdf|PDF)$/) {
966:
967: #
968: # For whatever reason, pure postscript conversions have to be
969: # in the same dir as the base file:
970: #
971: $eps_f = &basename($eps_f);
972: $eps_f = $perlvar{'lonPrtDir'}.'/'.$eps_f;
973:
974: &debug("Converting pdf $not_eps to postscript: $eps_f");
975: system("pdftops $not_eps $eps_f");
1.149 foxr 976: $pdfs_converted++; # Need to fix ps in last pass.
1.141 foxr 977: } else {
978: system("convert $not_eps $eps_f");
1.147 droeschl 979: if($? and $advanced_role){
1.155 bisitz 980: print '<p class="LC_warning">'
1.156 raeburn 981: .&mt('An error occurred during the conversion of [_1].',
1.155 bisitz 982: '<span class="LC_filename">'.$prettyname.'</span>')
983: .'<br />'
984: .&mt('If possible try to save this image using different settings and republish it.')
985: .'</p>';
1.147 droeschl 986: }
1.141 foxr 987: }
1.134 foxr 988:
1.133 foxr 989: if (not -e $eps_f) {
990: # converting an animated gif creates either:
991: # anim.gif.eps.0
992: # or
993: # anim.gif-0.eps
994: for (my $i=0;$i<10000;$i++) {
995: if (-e $eps_f.'.'.$i) {
996: rename($eps_f.'.'.$i, $eps_f);
997: last;
998: }
999: my $anim_eps = $eps_f;
1000: $anim_eps =~ s/(\.[^.]*)\.eps$/$1-$i\.eps/i;
1001: if (-e $anim_eps) {
1002: rename($anim_eps, $eps_f);
1003: last;
1004: }
1005: }
1006: }
1007:
1008: # imagemagick 6.2.0-6.2.7 fails to properly handle
1009: # convert anim.gif anim.gif.eps
1010: # it creates anim.eps instead.
1011: if (not -e $eps_f) {
1012: my $eps_f2 = $eps_f;
1013: $eps_f2 =~ s/\.[^.]*\.eps$/\.eps/i;
1014: if(-e $eps_f2) {
1015: rename($eps_f2,$eps_f);
1016: }
1017: }
1018: }
1019:
1020: }
1.135 foxr 1021: #
1022: # Analyze a LaTeX logfile producing appropriate output on error and
1023: # returning a boolean to let the caller know if, in our opinion, it's
1024: # worth continuing on to produce the PDF file.
1025: #
1026: # Parameters:
1027: # logfilename - Name of the logfile.
1028: # texfile - Name of the LaTeX file that was being processed.
1029: # advanced_role - True if the user is privileged with respect to the printout
1030: # (e.g. is the course coordinator or some such thing).
1031: # Returns:
1032: # 1 - Caller is advised to continue to create the PDF.
1033: # 0 - Caller need not bother creating the PDF.
1034: # Side Effects:
1035: # Messages are printed to describe any errors that have been encountered.
1036: # NOTE:
1037: # The current policy is to assume that if LaTeX decided to insert some text
1038: # it has salvaged the resource and the resource can be printed.. in that case
1039: # a message is emitted from this sub.
1040: #
1041: sub analyze_logfile {
1042: my ($logfilename, $texfile, $advanced_role) = @_;
1043:
1044: my $temporary_file=IO::File->new($logfilename) || die "Couldn't open log file $logfilename for reading: $!\n";
1045: my @content_of_file = <$temporary_file>;
1046: close $temporary_file;
1047: my $body_log_file = join(' ',@content_of_file);
1048: $logfilename =~ s/\.log$/\.html/;
1049: $temporary_file = IO::File->new('>'.$logfilename);
1050: print $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n";
1051: if ($body_log_file=~m/!\s+Emergency stop/) {
1052: my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
1053: my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
1054: my $badresource;
1055: my $badtext;
1056: if ($whereitbegins!=-1 and $whereitends!=-1) {
1057: $badtext = substr($body_log_file,$whereitbegins+26, $whereitends-$whereitbegins-26);
1058: $whereitbegins = rindex $badtext,'located in';
1059: if ($whereitbegins != -1) {
1060:
1061: $badresource = substr($badtext, $whereitbegins+27,
1062: length($badtext) - $whereitbegins - 48);
1063: # print "<br />failing resourcename: $badresource<br />";
1064: }
1.136 bisitz 1065: }
1.135 foxr 1066:
1067: # Guys with privileged roles get a more detailed error output:
1068:
1069: if ($advanced_role) {
1070: #LaTeX failed to parse tex file
1.138 biermanm 1071: print "<h2>".&mt('LaTeX could not successfully parse your TeX file.')."</h2>";
1.136 bisitz 1072: print &mt('It probably has errors in it.')."<br />";
1073: if ($badtext) {
1.156 raeburn 1074: print &mt('With very high probability this error occurred in [_1].',$badtext)
1.136 bisitz 1075: ."<br /><br />";
1076: }
1077: print &mt('Here are the error messages in the LaTeX log file:')
1078: ."<br /><pre>";
1.135 foxr 1079:
1080: my $sygnal = 0;
1081: for (my $i=0;$i<=$#content_of_file;$i++) {
1082: if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {
1083: $sygnal = 1;
1084: }
1085: if ($content_of_file[$i]=~m/Here is how much of/) {
1086: $sygnal = 0;
1087: }
1088: if ($sygnal) {
1089: print "$content_of_file[$i]";
1090: }
1091: }
1092: print "</pre>\n";
1093: # print "<br /> Advanced role <br />";
1094: $logfilename=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
1.136 bisitz 1095: print "<b><big>"
1096: .&mt('The link to [_1]Your log file[_2]','<a href="'.$logfilename.'">','</a>')
1097: ."</big></b>\n";
1.135 foxr 1098: #link to original LaTeX file
1099: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
1100: my @tex_content_of_file = <$tex_temporary_file>;
1101: close $tex_temporary_file;
1102: my $body_tex_file = join(' ',@tex_content_of_file);
1103: $texfile =~ s/\.tex$/aaaaa\.html/;
1104: $tex_temporary_file = IO::File->new('>'.$texfile);
1105: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
1106: print "<br /><br />";
1107: $texfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
1.136 bisitz 1108: print "<b><big>"
1109: .&mt('The link to [_1]Your original LaTeX file[_2]','<a href="'.$texfile.'">','</a>')
1110: ."</big></b><br /><br />\n";
1111: my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", &mt('Help on printing'));
1.135 foxr 1112: print ("$help_text");
1113:
1114: # Students on the other hand get a minimal error message, since they won't
1115: # be able to correct the error message. A message is sent to the
1116: # instructor:
1117:
1118: } else { # Student role...
1119: # at this point:
1120: # $body_log_file - contains the log file.
1121: # $name_file - is the name of the LaTeX file.
1122: # $identifier - is the unique LaTeX identifier.l
1123:
1.142 bisitz 1124: print '<p class="LC_error">';
1.136 bisitz 1125: if ($badtext) {
1126: print &mt('There are errors in [_1].',$badtext);
1127: } else {
1128: print &mt('There are errors.');
1129: }
1.142 bisitz 1130: print '</p>'
1131: .&mt('These errors prevent this resource from printing correctly.');
1132:
1.135 foxr 1133: my $tex_handle = IO::File->new($texfile);
1134: my @tex_contents = <$tex_handle>;
1135: &send_error_mail($identifier, $badresource, $body_log_file, \@tex_contents);
1.136 bisitz 1136: print "<p>"
1137: .&mt('A message has been sent to the instructor describing this failure.')
1138: ."</p>";
1139: my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", &mt('Help on printing'));
1.135 foxr 1140: print ("$help_text");
1141:
1142: }
1143:
1144: # Either way, an emergency stop does not allow us to continue so:
1145:
1146: return 0;
1147:
1148: # The branch of code below is taken if it appears that
1149: # there was no emergency stop but LaTeX had to correct the
1150: # input file to run.
1151: # In that case we need to provide error feedback, as the correction >may< not be
1152: # sufficient, we can let the game continue as there's a dvi file to process.
1153:
1154: } elsif ($body_log_file=~m/<inserted text>/) {
1155: my $whereitbegins = index $body_log_file,'<inserted text>';
1.136 bisitz 1156: print &mt('You are running LaTeX in [_1]batch mode[_2].','<b>','</b>');
1.135 foxr 1157: while ($whereitbegins != -1) {
1158: my $tempobegin=$whereitbegins;
1159: $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins;
1160: my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$whereitbegins;
1.136 bisitz 1161: print "<br />"
1162: .&mt('It has found an error in [_1][_2]and corrected it.',substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26),"<br />")."\n";
1163: print &mt('Usually this correction is valid but you probably need to check the indicated resource one more time and implement neccessary corrections by yourself.')."\n";
1.135 foxr 1164: $whereitbegins = index $body_log_file,'<inserted text>',$tempobegin+10;
1165: }
1166:
1167: if ($advanced_role) {
1168: print "<br /><br />";
1169: $logfilename=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
1.136 bisitz 1170: print "<b><big>"
1171: .&mt('The link to [_1]Your log file[_2]'
1.137 raeburn 1172: ,'<a href="'.$logfilename.'">','</a>')
1.136 bisitz 1173: ."</big></b>\n";
1.135 foxr 1174: #link to original LaTeX file
1175: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
1176: my @tex_content_of_file = <$tex_temporary_file>;
1177: close $tex_temporary_file;
1178: my $body_tex_file = join(' ',@tex_content_of_file);
1179: $texfile =~ s/\.tex$/aaaaa\.html/;
1180: $tex_temporary_file = IO::File->new('>'.$texfile);
1181: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
1182: print "<br /><br />";
1183: $texfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
1.136 bisitz 1184: print "<b><big>"
1185: .&mt('The link to [_1]Your original LaTeX file[_2]','<a href="'.$texfile.'">','</a>');
1186: print "</big></b>\n";
1.135 foxr 1187: }
1188: return 1;
1189: }
1190: return 1; # NO log file issues at all.
1191: }
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