Annotation of loncom/interface/printout.pl, revision 1.142
1.1 sakharuk 1: #!/usr/bin/perl
1.37 albertel 2: # CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc.
3: #
1.142 ! bisitz 4: # $Id: printout.pl,v 1.141 2009/04/17 10:02:49 foxr 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;
1.81 foxr 47:
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:
130: my $subject = "Error [$badurl] Print failed for $user".'@'.$domain;
1.77 foxr 131: my $message .= "Print failed to render LaTeX for $user".'@'."$domain\n";
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
174: return;
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';
1.133 foxr 181: print(&Apache::loncommon::start_page('Creating PDF'));
182:
183: my $identifier = $ENV{'QUERY_STRING'};
184: my $texfile = $env{'cgi.'.$identifier.'.file'};
185: my $laystyle = $env{'cgi.'.$identifier.'.layout'};
186: my $numberofcolumns = $env{'cgi.'.$identifier.'.numcol'};
187: my $paper = $env{'cgi.'.$identifier.'.paper'};
188: my $selectionmade = $env{'cgi.'.$identifier.'.selection'};
189: my $tableofcontents = $env{'cgi.'.$identifier.'.tableofcontents'};
190: my $tableofindex = $env{'cgi.'.$identifier.'.tableofindex'};
191: my $advanced_role = $env{'cgi.'.$identifier.'.role'};
192: my $number_of_files = $env{'cgi.'.$identifier.'.numberoffiles'}+1;
193: my $student_names = $env{'cgi.'.$identifier.'.studentnames'};
194: my $backref = &Apache::lonnet::unescape($env{'cgi.'.$identifier.'.backref'});
195:
196:
197: my @names_pack=();
198: if ($student_names=~/_END_/) {
199: @names_pack=split(/_ENDPERSON_/,$student_names);
200: }
201: if ($backref) {
202: print('<p>'.&mt("[_1]Return[_2] to editing resource.",
203: "<a href=\"$backref\"><b>","</b></a>").'</p>');
204: }
205: my $figfile = $texfile;
206: $figfile =~ s/^(.*_printout)_\d+_\d+_\d+\.tex/$1\.dat/;
207: my $duefile = $texfile;
208: $duefile =~ s/^(.*_printout)_\d+_\d+_\d+\.tex/$1\.due/;
209:
210:
211: #-------------------------------------------------------------------------------------
212: #
213: # Each print may have associated with it a file that contains a set of figures
214: # that need to be converted to .eps from whatever form they were in when included
215: # in the resource. The name of the figure file is in $figfile. If it exists,
216: # it contains the names of the files that need to be converted, one per line.
217: #
218:
1.141 foxr 219: &debug("Figure file is $figfile");
220:
1.133 foxr 221: if (-e $figfile) {
1.141 foxr 222: &debug( "Figure file exists");
223: &debug("$figfile exists");
1.133 foxr 224: my %done_conversion;
225: my $temporary_file=IO::File->new($figfile) || die "Couldn't open fig file $figfile for reading: $!\n";
226: my @content_of_file = <$temporary_file>;
227: close $temporary_file;
228: my $noteps;
229: my %prog_state;
230: if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Converting Images to EPS','Picture Conversion Status',$#content_of_file,'inline','80'); }
231: print('<br />');
232: foreach my $not_eps (@content_of_file) {
233: chomp($not_eps);
1.141 foxr 234: &debug( "Being asked to convert $not_eps");
1.133 foxr 235: if ($not_eps ne '') {
236: $not_eps=~s|\/\.\/|\/|g;
237: if (!$done_conversion{$not_eps}) { # Only convert multiple includes once.
238: &convert_figure($not_eps);
239: $done_conversion{$not_eps} = 1;
240: }
241: }
242: }
243: if ($advanced_role) {
244: &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state);
245: }
246: unlink($figfile);
247: }
248: # End of figure conversion section:
249: #
250: #--------------------------------------------------------------------------------------------
1.135 foxr 251: #
252: # Figure out which Tex files we need to process. If this is a large class e.g.
253: # the instructor may have asked that the printout be by section, one section per file
254: # in that case, the output tex fiels will be the base filename with 3 digit serial numbers
255: # just prior to the .tex file type.
256: # By the time this loop exits, @texfile is an array of the files to process.
257: #
1.133 foxr 258:
1.135 foxr 259: my @texfile=($texfile);
260: if ($number_of_files>1) {
261: @texfile=();
262: for (my $i=1;$i<=$number_of_files;$i++) {
263: my $new_texfile=$texfile;
264: $new_texfile=~s/\.tex//;
265: $new_texfile = sprintf("%s_%03d.tex", $new_texfile,$i);
266: push @texfile,$new_texfile;
267: }
268: }
1.39 sakharuk 269:
1.135 foxr 270: #--------------------------------------------------------------------------------------------
1.43 sakharuk 271:
1.135 foxr 272: my $ind=-1;
1.98 albertel 273:
1.49 albertel 274: my %prog_state;
1.135 foxr 275: if ($advanced_role) {
1.136 bisitz 276: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status',&mt('Class Print Status'),$number_of_files,'inline','80');
1.135 foxr 277: }
1.61 albertel 278: print "<br />";
1.135 foxr 279: my $num_files = @texfile; # How does this differ from $number_of_files , can that be 0?
280:
281:
282:
283:
1.43 sakharuk 284: foreach $texfile (@texfile) {
1.49 albertel 285: my $status_statement='';
286: my $link_text='download PDF';
287: $ind++;
1.135 foxr 288:
289: #---------------------------------------------------------------------------------------
290: # This chunk of code
291: # determines the status message for the printout, and the download link text.
292: # If the print is for one or more students, both will contain the range of students
293: # covered by this file.
294: #
295:
1.49 albertel 296: my @stud_info=split(/_END_/,$names_pack[$ind]);
1.135 foxr 297: my @tempo_array=split(/:/,$stud_info[0]); # username:domain:section:full name:...
1.49 albertel 298: my $name;
1.88 foxr 299: my $name_range='';
1.135 foxr 300:
301: # $name -> Either user's full name or username@domain
302: # $name_range -> Either user's last name or usrname.
303:
1.49 albertel 304: if ($tempo_array[3]) {
305: $name=$tempo_array[3];
1.89 foxr 306: ($name_range) = split(/,/,$name, 2);
1.49 albertel 307: } else {
308: $name=$tempo_array[0].'@'.$tempo_array[1];
1.88 foxr 309: $name_range = $tempo_array[0];
310: }
1.135 foxr 311:
312: # If there truly is a name add it to the status text so we know which
313: # user is getting printed.
314: #
315:
1.88 foxr 316: if (($name ne "") && ($name ne '@') ) { # Could be printing codes...
317: $link_text='<b>'.$name.'</b>';
318: $status_statement.=$name;
1.49 albertel 319: }
1.135 foxr 320:
321: # Group of students being printed...
322: # $name_range -> first student's name - last student's name
323: #
324:
1.49 albertel 325: if ($#stud_info>0) {
326: @tempo_array=split(/:/,$stud_info[-1]);
1.48 albertel 327: if ($tempo_array[3]) {
328: $name=$tempo_array[3];
1.89 foxr 329: my ($lastname) = split(/,/, $name,2);
330: $name_range .= "-".$lastname;
1.48 albertel 331: } else {
332: $name=$tempo_array[0].'@'.$tempo_array[1];
1.88 foxr 333: $name_range .= '-'.$tempo_array[0];
334: }
335: if (($name ne "") && ($name ne '@')) {
336: $link_text.=' - <b>'.$name.'</b>';
337: $status_statement.=' - '.$name;
338:
1.48 albertel 339: }
1.88 foxr 340: }
1.135 foxr 341:
342: # $name_range is the range of names in this file.
343: # $name is the first of the names in this file.
344: #
345: #-----------------------------------------------------------------------
346:
347: # If the number of files is > 1, but we don't have multiple
348: # student names, we must be printing an exam from codes.
349: # The download link becomes the filename (basename.tex
350: # The status info has the basename appended to it.
351: #
352: if(($num_files > 1) && ($link_text eq 'download PDF')) {
1.88 foxr 353: $link_text = '<b>'.basename($texfile,'.tex').'.pdf</b>';
354: $status_statement .= basename($texfile);
355: }
1.135 foxr 356:
357:
358: #------------------------------------------------------------------------
359:
1.88 foxr 360: $name_range =~ s/'//g; # O'Neil -> ONeil e.g.
1.135 foxr 361:
362:
1.88 foxr 363: print "<br/>";
1.135 foxr 364: if ($advanced_role) {
365: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Creating PDF for '.$status_statement);
366: }
367:
368: if (-e $texfile) { # Ensure the tex file exists:
369:
370: #---------------------------------------------------------------------
371: #
372: # Put username ranges into the original tex
373: # Tex filename from which they'll propagate into the other filenames as well.
374: #
375:
1.88 foxr 376: if (($name_range ne '') && ($num_files > 1)) {
377: my $newtexfile = $texfile;
378: $newtexfile =~ s/\.tex/$name_range\.tex/;
379: rename($texfile, $newtexfile);
380: $texfile = $newtexfile;
381: }
1.135 foxr 382:
383: #---------------------------------------------------------------------
384:
1.29 sakharuk 385: $texfile =~ m/^(.*)\/([^\/]+)$/;
386: my $name_file = $2;
387: my $path_file = $1.'/';
388: chdir $path_file;
1.132 www 389: my $dvi_file= $name_file; $dvi_file =~ s/\.tex$/\.dvi/;
1.135 foxr 390: &make_dvi_file($name_file,
391: $dvi_file,
392: $tableofcontents,
393: $tableofindex,
394: $status_statement,
395: \%prog_state,
396: $busy_wait_timeout);
1.90 foxr 397:
398:
1.135 foxr 399: #Do we have a latex error in the log file?
1.35 sakharuk 400:
1.105 foxr 401:
1.135 foxr 402: my $logfilename = $texfile; $logfilename =~ s/\.tex$/\.log/;
1.115 foxr 403:
1.63 sakharuk 404:
1.135 foxr 405: if (&analyze_logfile($logfilename, $texfile, $advanced_role)) {
406:
1.119 foxr 407:
1.29 sakharuk 408: #LaTeX successfully parsed tex file
409: $name_file =~ s/\.tex/\.dvi/;
410: my $new_name_file = $name_file;
411: $new_name_file =~ s/\.dvi/\.ps/;
1.67 sakharuk 412: my $papera=$paper;
1.62 sakharuk 413: if ($papera eq 'letter') {$papera='';}
414: if ($papera ne '') {$papera='-t'.$papera;}
1.139 foxr 415: my $extra_ps_header = $perlvar{'lonLib'} .'/includepsheader.ps';
416: my $comma = "dvips $papera -h $extra_ps_header -Ppdf -G0 -o $new_name_file";
1.59 albertel 417: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
418: "for $status_statement now Converting to PS",
419: \%prog_state,$new_name_file);
1.115 foxr 420: #
421: # One last little hinky kinky thing.
422: # It's just possible that some fonts could not be maded
423: # at the resolution of the pdf print driver.
424: # In that case a file called missfont.log will have been
425: # created that will contain the commands that were attempted
426: # to create the missing fonts. If we basically
427: # take all the 8000 strings in that file, and
428: # replace them with 600 (the ljfour resolution)
429: # run the commands in that file and redvips,
430: # we'll be able to print the missing glyphs at 600dpi.
431: #
432: # Supposedly it is possible to tune TeX/Metafont to do this
433: # right but I failed to get that to work when following the
434: # docs at the tug site, hence this rather kludgey fix.
435: #
1.135 foxr 436:
1.115 foxr 437: my $print_directory = dirname($name_file);
438: my $missfonts_file = $print_directory."/missfont.log";
1.116 albertel 439: #print("<br /> Missing fonts file is: $missfonts_file");
1.115 foxr 440: if (-e $missfonts_file) {
1.116 albertel 441: #print("<br />Missing fonts file exists\n");
1.124 albertel 442: &create_missing_fonts($missfonts_file,\%prog_state);
1.118 albertel 443: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
1.115 foxr 444: "for $status_statement dvips generated missing fonts",
445: \%prog_state, $new_name_file);
446: }
1.29 sakharuk 447: if (-e $new_name_file) {
1.102 foxr 448: my $latex_file = $name_file;
449: $latex_file =~ s/\.dvi/\.tex/;
450: &repaginate($new_name_file, $latex_file, $numberofcolumns);
1.135 foxr 451:
452: &make_dvi_file($latex_file,
453: $name_file,
454: $tableofcontents,
455: $tableofindex,
456: $status_statement,
457: \%prog_state,
458: $busy_wait_timeout);
459:
460:
1.102 foxr 461: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
462: "for $status_statement dvips to repaginate",
463: \%prog_state, $new_name_file);
1.115 foxr 464:
1.61 albertel 465: print "<br />";
1.29 sakharuk 466: $new_name_file =~ m/^(.*)\./;
1.59 albertel 467: my $ps_file = my $tempo_file = $1.'temporar.ps';
468: my $pdf_file = $1.'.pdf';
1.82 albertel 469: $papera=~s/t/p/;
1.29 sakharuk 470: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
1.141 foxr 471: $comma = "fixps --force ".$new_name_file." | psnup $papera -2 -s1.0 ";
472: &debug("PSNUP command: $comma");
473: &busy_wait_command("$comma 1>$tempo_file 2>/dev/null",
1.59 albertel 474: "for $status_statement now Modifying PS layout",
475: \%prog_state,$tempo_file);
1.29 sakharuk 476: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
1.141 foxr 477: $comma = 'fixps --force '.$new_name_file.' | pstops '.$papera.' "2:0+1(0.48w,0)"';
478: &debug("PSTOPS command: $comma ");
479:
480: &busy_wait_command("$comma 1>$tempo_file 2>/dev/null",
1.59 albertel 481: "for $status_statement now Modifying PS layout",
482: \%prog_state,$tempo_file);
1.29 sakharuk 483: } else {
1.59 albertel 484: $ps_file=$new_name_file;
485: }
1.67 sakharuk 486: my $addtoPSfile={'legal'=>'<< /PageSize [612 1008] >> setpagedevice',
487: 'tabloid'=>'<< /PageSize [792 1224] >> setpagedevice',
488: 'executive'=>,'<< /PageSize [540 720] >> setpagedevice',
489: 'a2'=>'<< /PageSize [1195.02 1690.09] >> setpagedevice',
490: 'a3'=>'<< /PageSize [842 1195.02] >> setpagedevice',
491: 'a4'=>'<< /PageSize [595.2 842] >> setpagedevice',
492: 'a5'=>'<< /PageSize [421.1 595.2] >> setpagedevice',
493: 'a6'=>'<< /PageSize [298.75 421.1] >> setpagedevice',
494: };
495: if ($paper ne 'letter') {
1.69 matthew 496: open(FFH,'<',$ps_file) || die "Couldn't open ps file $ps_file for reading: $!\n";
1.63 sakharuk 497: my $new_ps_file='new'.$ps_file;
1.69 matthew 498: open(FFHS,'>',$new_ps_file) || die "Couldn't open new ps file $new_ps_file for reading: $!\n";
1.67 sakharuk 499: print FFHS $addtoPSfile->{$paper}."\n";
1.63 sakharuk 500: while (<FFH>) {
501: print FFHS $_;
502: }
1.62 sakharuk 503: close(FFH);
1.63 sakharuk 504: close(FFHS);
505: $ps_file=$new_ps_file;
1.62 sakharuk 506: }
1.141 foxr 507: &busy_wait_command("ps2pdf13 $ps_file $pdf_file 1>/dev/null 2>/dev/null",
1.59 albertel 508: "for $status_statement now Converting PS to PDF",
509: \%prog_state,$pdf_file);
510:
1.29 sakharuk 511: my $texlog = $texfile;
512: my $texaux = $texfile;
513: my $texdvi = $texfile;
514: my $texps = $texfile;
515: $texlog =~ s/\.tex/\.log/;
516: $texaux =~ s/\.tex/\.aux/;
517: $texdvi =~ s/\.tex/\.dvi/;
518: $texps =~ s/\.tex/\.ps/;
519: my @garb = ($texlog,$texaux,$texdvi,$texps);
1.22 sakharuk 520: # unlink @garb;
1.120 albertel 521: unlink($duefile);
1.68 sakharuk 522: print "<a href=\"/prtspool/$pdf_file\">$link_text - click here to download pdf</a>";
1.29 sakharuk 523: print "\n";
524: }
1.120 albertel 525: unlink($missfonts_file);
1.119 foxr 526:
1.63 sakharuk 527: }
1.29 sakharuk 528: } else {
529: print "LaTeX file $texfile was not created successfully";
1.14 sakharuk 530: }
1.43 sakharuk 531: }
1.45 sakharuk 532: print "<br />";
1.44 sakharuk 533: if ($number_of_files>1) {
1.45 sakharuk 534: my $zipfile=$texfile[0];
535: $zipfile=~s/\.tex/\.zip/;
536: my $statement="zip $zipfile";
1.44 sakharuk 537: foreach my $file (@texfile) {
1.45 sakharuk 538: $file=~s/\.tex/.\pdf/;
539: $statement.=' '.$file;
1.44 sakharuk 540: }
1.49 albertel 541: print("<pre>Zip Output:\n");
542: system($statement);
543: print("</pre>");
1.123 albertel 544: $zipfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
1.49 albertel 545: print "<br /> A <a href=\"$zipfile\">ZIP file</a> of all the PDFs.";
1.44 sakharuk 546: }
1.92 albertel 547: if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
1.97 albertel 548: print(&Apache::loncommon::end_page());
1.59 albertel 549: my $done;
1.102 foxr 550:
1.59 albertel 551: sub REAPER {
552: $done=1;
553: }
1.129 foxr 554: #
555: # Execute a command updating the status window as the command's
556: # output file builds up (at intervals of a second).
557: #
558: # If the timeout argument defined, then if that many seconds
559: # elapses without an increase in the size of the output file,
560: # the command will be killed (this deals with the case when
561: # latex crawls into an infinite loop).
562: #
1.59 albertel 563: sub busy_wait_command {
1.129 foxr 564: my ($command,$message,$progress_win,$output_file, $timeout)=@_;
1.59 albertel 565:
566: $SIG{CHLD} = \&REAPER;
567: $done=0;
568: my $pid=open(CMD,"$command |");
1.92 albertel 569: if ($advanced_role) {
1.60 albertel 570: &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);
571: }
1.129 foxr 572: my $last_size = 0;
573: my $unchanged_time = 0;
1.59 albertel 574: while(!$done) {
575: sleep 1;
576: my $extra_msg;
577: if ($output_file) {
578: my $size=(stat($output_file))[7];
579: $extra_msg=", $size bytes generated";
1.129 foxr 580: if ($size == $last_size) {
581: $unchanged_time++;
582: if ($timeout && ($unchanged_time > $timeout)) {
1.132 www 583: print "<h1>Operation timed out!</h1>\n";
1.131 www 584: print "<p>Executing $command, the output file $output_file did not grow\n";
1.130 foxr 585: print "after $timeout seconds. This <em>may</em> indicate $command\n";
1.131 www 586: print "is in an infinite loop.\n";
587: print "See if printing fewer copies helps. Please contact LON-CAPA\n";
588: print "support about this in any event.";
1.130 foxr 589: print "</p>";
1.129 foxr 590: kill(9, $pid); # Reaper will do the rest...I hope there's errors in the log.
591: }
592: } else {
593: $last_size = $size;
594: $unchanged_time = 0;
595: }
1.59 albertel 596: }
1.92 albertel 597: if ($advanced_role) {
1.60 albertel 598: &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,
599: $message.$extra_msg);
600: }
1.59 albertel 601: }
602: $SIG{CHLD}='IGNORE';
603: close(CMD);
604: }
1.1 sakharuk 605:
1.135 foxr 606: # Make the dvi file (or rather try to), from the latex file and the
607: # various bits and pieces that control how the latex file is processed:
608: # LaTeX is run as many times a needed to make this all happen... this may
609: # result in several runs of LaTeX that just are errors if the LaTeX is
1.136 bisitz 610: # bad, but the printing subsystem is _supposed_ to not do that.
1.135 foxr 611: #
612: # Parameters:
613: # name_file - Name of the LaTeX file to process.
614: # dvi_file - Name of resulting dvi file.
615: # tableofcontents - "yes" if we are supposed to make a table of contents.
616: # tableofindex - "yes" if we are suposed to make an index.
617: # status_statement - Part of the status statement for ths status window.
618: # prog_state - Reference to the program state hash.
619: # busy_wait_timeout- Seconds without any progress that imply a problem.
620: #
621: #
622: sub make_dvi_file {
623: my ($name_file,
624: $dvi_file,
625: $tableofcontents,
626: $tableofindex,
627: $status_statement,
628: $prog_state,
629: $busy_wait_timeout) = @_;
630:
631:
632: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
633: "for $status_statement now LaTeXing file",
634: $prog_state,$dvi_file, $busy_wait_timeout);
635:
636: # If the tableof contents was requested, we need to run
637: # LaTex a couple more times to get all the references sorted out.
638:
639: if ($tableofcontents eq 'yes') {
640: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
641: "for $status_statement First LaTeX of file for table of contents",
642: $prog_state,$dvi_file, $busy_wait_timeout);
643: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
644: "for $status_statement Second LaTeX of file for table of contents",
645: $prog_state,$dvi_file,$busy_wait_timeout);
646: }
647:
648: # And makeindex and another run of LaTeX to incorporate it if the index
649: # is enabled.
650:
651:
652: if ($tableofindex eq 'yes') {
653: my $idxname=$name_file;
654: $idxname=~s/\.tex$/\.idx/;
655: &busy_wait_command("makeindex $idxname",
656: "making index file",
657: $prog_state,$idxname);
658: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
659: "for $status_statement now LaTeXing file for index section",
660: $prog_state,$dvi_file, $busy_wait_timeout);
661: }
662:
663: }
664:
665:
1.102 foxr 666: # Repagninate
1.99 foxr 667: # What we need to do:
668: # - Count the number of pages in each student.
1.102 foxr 669: # - Rewrite the latex file replacing the \specials that
670: # mark the end of student with an appropriate number of newlines.
671: # parameters:
672: # psfile - Postscript filename
673: # latexfile - LaTeX filename
674: # columns - number of columns.
675: sub repaginate {
1.100 foxr 676:
677: # We will try to do this in 2 passes through the postscript since
678: # the postscript is potentially large, to do 2 passes, the first pass
679: # must be able to calculate the total number of document pages so that
680: # at the beginning of the second pass we already know how to replace
681: # %%Pages:
682:
683: # Figure out
684: # 1. Number of pages in the document
685: # 2. Maximum number of pages in a student
686: # 3. Number of pages in each student.
1.99 foxr 687:
1.102 foxr 688: my ($postscript_filename, $latex_filename, $num_columns) = @_;
1.99 foxr 689: open(PSFILE, "<$postscript_filename");
1.100 foxr 690: my $line;
691: my $total_pages; # Total pages in document.
692: my $seen_pages = 0; # There are several %%Pages only the first is useful
693: my @pages_in_student; # For each student his/her initial page count.
694: my $max_pages = 0; # Pages in 'longest' student.
1.102 foxr 695: my $page_number = 0;
1.104 foxr 696: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
1.110 albertel 697: &mt("Counting pages for student: [_1]",1));
1.104 foxr 698:
1.100 foxr 699: while ($line = <PSFILE>) {
700:
701: # Check for total pages (%%Pages:)
702:
1.101 albertel 703: if (($line =~ /^%%Pages:/) && (!$seen_pages)) {
1.100 foxr 704: my @pageinfo = split(/ /,$line);
705: $total_pages = $pageinfo[1];
706: $seen_pages = 1;
707: }
708: # Check for %%Page: n m $page_number will be the
709: # biggest of these until we see an endofstudent.
710: # Note that minipages generate spurious %Page: 1 1's so
711: # we only are looking for the largest n (n is page number at the
712: # bottom of the page, m the page number within the document.
713: #
1.102 foxr 714:
1.127 albertel 715: if ($line =~ /^%%Page:\s+\d+\s+\d+/) {
1.120 albertel 716: my @pageinfo = split(/\s+/, $line);
1.100 foxr 717: if ($page_number < $pageinfo[1]) {
718: $page_number = $pageinfo[1];
1.110 albertel 719: } elsif ($pageinfo[2] ne 1) {
720: # current page count reset, and it's not because of a
721: # minipage
722: # - save the page_number, reset and, if necessary
723: # update max_pages.
724: push(@pages_in_student, $page_number);
725: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
726: &mt("Counting pages for student: [_1]", scalar(@pages_in_student)));
727: if ($page_number > $max_pages) {
728: $max_pages = $page_number;
729: }
730: $page_number = $pageinfo[1];
1.100 foxr 731: }
732: }
733:
734:
735: }
1.110 albertel 736: # file ended so one more student
737: push(@pages_in_student, $page_number);
738: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
739: &mt("Counting pages for student: [_1]",scalar(@pages_in_student)));
740: if ($page_number > $max_pages) {
741: $max_pages = $page_number;
742: }
743: $page_number = 0;
744:
1.99 foxr 745: close(PSFILE);
1.102 foxr 746:
747: # If 2 columns, max_pages must go to an even number of columns:
1.103 foxr 748:
1.102 foxr 749:
750: if ($num_columns == 2) {
751: if ($max_pages % 2) {
752: $max_pages++;
753: }
754: }
1.100 foxr 755:
1.102 foxr 756: # Now rewrite the LaTex file, substituting our \special
757: # with an appropriate number of \newpage directives.
758:
759: my $outfilename = $latex_filename."temp";
760:
761: open(LATEXIN, "<$latex_filename");
762: open(LATEXOUT, ">$outfilename");
763:
764:
1.110 albertel 765: my $student_number = 0; # Index of student we're working on.
1.104 foxr 766: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
767: "Repaginating student ".$student_number+1);
1.102 foxr 768:
769: while (my $line = <LATEXIN>) {
770: if ($line eq "\\special{ps:ENDOFSTUDENTSTAMP}\n") {
771: # only end of student stamp if next line is ENDOFSTUDENTSTAMP:
772:
773:
774: # End of student replace with 0 or more newpages.
775:
776: my $addlines = $max_pages - $pages_in_student[$student_number];
777: while($addlines) {
1.108 albertel 778: print LATEXOUT '\clearpage \strut \clearpage';
1.105 foxr 779:
1.102 foxr 780: $addlines--;
1.100 foxr 781: }
1.102 foxr 782:
1.100 foxr 783: $student_number++;
1.104 foxr 784: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
785: "Repaginating student ".$student_number+1);
1.102 foxr 786:
787: } else {
788: print LATEXOUT $line;
1.100 foxr 789: }
790: }
791:
1.102 foxr 792: close(LATEXIN);
793: close(LATEXOUT);
1.108 albertel 794: rename($outfilename, $latex_filename);
1.100 foxr 795:
1.99 foxr 796: }
1.4 sakharuk 797:
1.115 foxr 798: #
799: # Create missing fonts given a latex missfonts.log file.
800: # This file will have lines like:
801: #
802: # mktexpk --mfmode ljfour --bdpi 8000 --mag 1+0/8000 --dpi 8000 tcrm0500
803: #
804: # We want to execute those lines with the 8000's changed to 600's
805: # in order to match the resolution of the ljfour printer.
806: # Of course if some wiseguy has changed the default printer from ljfour
807: # in the dvips's config.ps file that will break so we'll also
808: # ensure that --mfmode is ljfour.
809: #
810: sub create_missing_fonts {
811: my ($fontfile, $state) = @_;
812:
813: # Open and read in the font file..we'll read it into the array
814: # font_commands.
815: #
1.118 albertel 816: open(my $font_handle, $fontfile);
1.115 foxr 817: my @font_commands = <$font_handle>;
1.118 albertel 818:
819: # make the list contain each command only once
820: my %uniq;
821: @font_commands = map { $uniq{$_}++ == 0 ? $_ : () } @font_commands;
1.115 foxr 822:
823: # Now process each command replacing the appropriate 8000's with
824: # 600's ensuring that font names with 8000's in them are not corrupted.
825: # and if the --mfmode is not ljfour we turn it into ljfour.
826: # Then we execute the command.
827: #
1.118 albertel 828:
1.115 foxr 829: foreach my $command (@font_commands) {
1.116 albertel 830: #print("<br />Raw command: $command");
1.115 foxr 831: $command =~ s/ 8000/ 600/g; # dpi directives.
832: $command =~ s/\/8000/\/600/g; # mag directives.
1.116 albertel 833: #print("<br />After dpi replacements: $command");
1.115 foxr 834:
835: my @cmdarray = split(/ /,$command);
836: for (my $i =0; $i < scalar(@cmdarray); $i++) {
837: if ($cmdarray[$i] eq '--mfmode') {
838: $cmdarray[$i+1] = "ljfour";
839: }
840: }
1.116 albertel 841: #print("<br /> before reassembly : (@cmdarray)");
1.115 foxr 842: $command = join(" ", (@cmdarray));
843:
1.116 albertel 844: #print("<br />Creating fonts via command: $command");
1.118 albertel 845: &busy_wait_command("$command 1>/dev/null 2>/dev/null",
1.115 foxr 846: "Creating missing font",
1.124 albertel 847: $state);
1.115 foxr 848:
849: }
850:
851: }
1.133 foxr 852: #
853: # Convert a figure file to encapsulated postscript:
854: # At present, this is using a lot of file scoped globals to pass data around.
855: # Parameters:
856: # not_eps - The name of the file to convert which, presumably, is not
857: # already an eps file.
858: #
859: sub convert_figure {
860: my ($not_eps) = @_;
1.141 foxr 861: &debug("in convert_figure");
1.133 foxr 862:
863: my $status_statement='EPS picture for '.$not_eps;
864: my $eps_f = $not_eps;
1.134 foxr 865:
1.133 foxr 866: if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) {
867: $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/;
868: } elsif ($eps_f=~/$perlvar{'lonDocRoot'}\/res\//) {
1.134 foxr 869: $eps_f=~ s/$perlvar{'lonDocRoot'}\/res\/(.+)/$1/;
1.133 foxr 870: } elsif ($eps_f=~/$perlvar{'lonUsersDir'}\//) {
1.134 foxr 871: $eps_f=~ s/$perlvar{'lonUsersDir'}\/([^\/]+)\/\w\/\w\/\w\/(.+)/$1\/$2/;
1.133 foxr 872: }
1.134 foxr 873:
874: $eps_f = $perlvar{'lonPrtDir'}.'/'.$eps_f;
875:
876: # Spaces are problematic for system commands and LaTeX, replace with _
877:
878: $eps_f =~ s/ /\_/g;
879:
1.133 foxr 880: #
1.134 foxr 881: # If the file is already an .eps or .ps file (eps_f still has the original
882: # file type),
1.133 foxr 883: # We really just need to copy it from where it was to prtspool
884: # but with the spaces substituted to _'s.
885: #
1.134 foxr 886: my ($nsname,$path, $sext) = &fileparse($eps_f, qr/\.(ps|eps)/i);
1.133 foxr 887: if ($sext =~/ps$/i) {
888: &File::Path::mkpath($path,0,0777);
889: copy("$not_eps", "$eps_f");
890: } else {
891:
892: $eps_f .= '.eps'; # Just append the eps ext.
1.134 foxr 893: my $path= &dirname($eps_f);
1.133 foxr 894: &File::Path::mkpath($path,0,0777);
895: $not_eps =~ s/^\s+//;
896: $not_eps =~ s/\s+$//;
897: $not_eps =~ s/ /\\ /g;
898: if ($advanced_role) {
899: my $prettyname=$not_eps;
900: $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|;
901: $prettyname=~s|$perlvar{'lonDocRoot'}/|/|;
902: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
903: 'Converting to EPS '.$prettyname);
904: }
1.141 foxr 905: #
906: # If the file is a PDF, need to use pdftops to convert it to a ps file.
907: # otherwise use imagemagik:
908: #
909: if($not_eps =~/\.(pdf|PDF)$/) {
910:
911: #
912: # For whatever reason, pure postscript conversions have to be
913: # in the same dir as the base file:
914: #
915: $eps_f = &basename($eps_f);
916: $eps_f = $perlvar{'lonPrtDir'}.'/'.$eps_f;
917:
918: &debug("Converting pdf $not_eps to postscript: $eps_f");
919: system("pdftops $not_eps $eps_f");
920: } else {
921: system("convert $not_eps $eps_f");
922: }
1.134 foxr 923:
1.133 foxr 924: if (not -e $eps_f) {
925: # converting an animated gif creates either:
926: # anim.gif.eps.0
927: # or
928: # anim.gif-0.eps
929: for (my $i=0;$i<10000;$i++) {
930: if (-e $eps_f.'.'.$i) {
931: rename($eps_f.'.'.$i, $eps_f);
932: last;
933: }
934: my $anim_eps = $eps_f;
935: $anim_eps =~ s/(\.[^.]*)\.eps$/$1-$i\.eps/i;
936: if (-e $anim_eps) {
937: rename($anim_eps, $eps_f);
938: last;
939: }
940: }
941: }
942:
943: # imagemagick 6.2.0-6.2.7 fails to properly handle
944: # convert anim.gif anim.gif.eps
945: # it creates anim.eps instead.
946: if (not -e $eps_f) {
947: my $eps_f2 = $eps_f;
948: $eps_f2 =~ s/\.[^.]*\.eps$/\.eps/i;
949: if(-e $eps_f2) {
950: rename($eps_f2,$eps_f);
951: }
952: }
953: }
954:
955: }
1.135 foxr 956: #
957: # Analyze a LaTeX logfile producing appropriate output on error and
958: # returning a boolean to let the caller know if, in our opinion, it's
959: # worth continuing on to produce the PDF file.
960: #
961: # Parameters:
962: # logfilename - Name of the logfile.
963: # texfile - Name of the LaTeX file that was being processed.
964: # advanced_role - True if the user is privileged with respect to the printout
965: # (e.g. is the course coordinator or some such thing).
966: # Returns:
967: # 1 - Caller is advised to continue to create the PDF.
968: # 0 - Caller need not bother creating the PDF.
969: # Side Effects:
970: # Messages are printed to describe any errors that have been encountered.
971: # NOTE:
972: # The current policy is to assume that if LaTeX decided to insert some text
973: # it has salvaged the resource and the resource can be printed.. in that case
974: # a message is emitted from this sub.
975: #
976: sub analyze_logfile {
977: my ($logfilename, $texfile, $advanced_role) = @_;
978:
979: my $temporary_file=IO::File->new($logfilename) || die "Couldn't open log file $logfilename for reading: $!\n";
980: my @content_of_file = <$temporary_file>;
981: close $temporary_file;
982: my $body_log_file = join(' ',@content_of_file);
983: $logfilename =~ s/\.log$/\.html/;
984: $temporary_file = IO::File->new('>'.$logfilename);
985: print $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n";
986: if ($body_log_file=~m/!\s+Emergency stop/) {
987: my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
988: my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
989: my $badresource;
990: my $badtext;
991: if ($whereitbegins!=-1 and $whereitends!=-1) {
992: $badtext = substr($body_log_file,$whereitbegins+26, $whereitends-$whereitbegins-26);
993: $whereitbegins = rindex $badtext,'located in';
994: if ($whereitbegins != -1) {
995:
996: $badresource = substr($badtext, $whereitbegins+27,
997: length($badtext) - $whereitbegins - 48);
998: # print "<br />failing resourcename: $badresource<br />";
999: }
1.136 bisitz 1000: }
1.135 foxr 1001:
1002: # Guys with privileged roles get a more detailed error output:
1003:
1004: if ($advanced_role) {
1005: #LaTeX failed to parse tex file
1.138 biermanm 1006: print "<h2>".&mt('LaTeX could not successfully parse your TeX file.')."</h2>";
1.136 bisitz 1007: print &mt('It probably has errors in it.')."<br />";
1008: if ($badtext) {
1009: print &mt('With very high probability this error occured in [_1].',$badtext)
1010: ."<br /><br />";
1011: }
1012: print &mt('Here are the error messages in the LaTeX log file:')
1013: ."<br /><pre>";
1.135 foxr 1014:
1015: my $sygnal = 0;
1016: for (my $i=0;$i<=$#content_of_file;$i++) {
1017: if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {
1018: $sygnal = 1;
1019: }
1020: if ($content_of_file[$i]=~m/Here is how much of/) {
1021: $sygnal = 0;
1022: }
1023: if ($sygnal) {
1024: print "$content_of_file[$i]";
1025: }
1026: }
1027: print "</pre>\n";
1028: # print "<br /> Advanced role <br />";
1029: $logfilename=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
1.136 bisitz 1030: print "<b><big>"
1031: .&mt('The link to [_1]Your log file[_2]','<a href="'.$logfilename.'">','</a>')
1032: ."</big></b>\n";
1.135 foxr 1033: #link to original LaTeX file
1034: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
1035: my @tex_content_of_file = <$tex_temporary_file>;
1036: close $tex_temporary_file;
1037: my $body_tex_file = join(' ',@tex_content_of_file);
1038: $texfile =~ s/\.tex$/aaaaa\.html/;
1039: $tex_temporary_file = IO::File->new('>'.$texfile);
1040: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
1041: print "<br /><br />";
1042: $texfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
1.136 bisitz 1043: print "<b><big>"
1044: .&mt('The link to [_1]Your original LaTeX file[_2]','<a href="'.$texfile.'">','</a>')
1045: ."</big></b><br /><br />\n";
1046: my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", &mt('Help on printing'));
1.135 foxr 1047: print ("$help_text");
1048:
1049: # Students on the other hand get a minimal error message, since they won't
1050: # be able to correct the error message. A message is sent to the
1051: # instructor:
1052:
1053: } else { # Student role...
1054: # at this point:
1055: # $body_log_file - contains the log file.
1056: # $name_file - is the name of the LaTeX file.
1057: # $identifier - is the unique LaTeX identifier.l
1058:
1.142 ! bisitz 1059: print '<p class="LC_error">';
1.136 bisitz 1060: if ($badtext) {
1061: print &mt('There are errors in [_1].',$badtext);
1062: } else {
1063: print &mt('There are errors.');
1064: }
1.142 ! bisitz 1065: print '</p>'
! 1066: .&mt('These errors prevent this resource from printing correctly.');
! 1067:
1.135 foxr 1068: my $tex_handle = IO::File->new($texfile);
1069: my @tex_contents = <$tex_handle>;
1070: &send_error_mail($identifier, $badresource, $body_log_file, \@tex_contents);
1.136 bisitz 1071: print "<p>"
1072: .&mt('A message has been sent to the instructor describing this failure.')
1073: ."</p>";
1074: my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", &mt('Help on printing'));
1.135 foxr 1075: print ("$help_text");
1076:
1077: }
1078:
1079: # Either way, an emergency stop does not allow us to continue so:
1080:
1081: return 0;
1082:
1083: # The branch of code below is taken if it appears that
1084: # there was no emergency stop but LaTeX had to correct the
1085: # input file to run.
1086: # In that case we need to provide error feedback, as the correction >may< not be
1087: # sufficient, we can let the game continue as there's a dvi file to process.
1088:
1089: } elsif ($body_log_file=~m/<inserted text>/) {
1090: my $whereitbegins = index $body_log_file,'<inserted text>';
1.136 bisitz 1091: print &mt('You are running LaTeX in [_1]batch mode[_2].','<b>','</b>');
1.135 foxr 1092: while ($whereitbegins != -1) {
1093: my $tempobegin=$whereitbegins;
1094: $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins;
1095: my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$whereitbegins;
1.136 bisitz 1096: print "<br />"
1097: .&mt('It has found an error in [_1][_2]and corrected it.',substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26),"<br />")."\n";
1098: 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 1099: $whereitbegins = index $body_log_file,'<inserted text>',$tempobegin+10;
1100: }
1101:
1102: if ($advanced_role) {
1103: print "<br /><br />";
1104: $logfilename=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
1.136 bisitz 1105: print "<b><big>"
1106: .&mt('The link to [_1]Your log file[_2]'
1.137 raeburn 1107: ,'<a href="'.$logfilename.'">','</a>')
1.136 bisitz 1108: ."</big></b>\n";
1.135 foxr 1109: #link to original LaTeX file
1110: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
1111: my @tex_content_of_file = <$tex_temporary_file>;
1112: close $tex_temporary_file;
1113: my $body_tex_file = join(' ',@tex_content_of_file);
1114: $texfile =~ s/\.tex$/aaaaa\.html/;
1115: $tex_temporary_file = IO::File->new('>'.$texfile);
1116: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
1117: print "<br /><br />";
1118: $texfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
1.136 bisitz 1119: print "<b><big>"
1120: .&mt('The link to [_1]Your original LaTeX file[_2]','<a href="'.$texfile.'">','</a>');
1121: print "</big></b>\n";
1.135 foxr 1122: }
1123: return 1;
1124: }
1125: return 1; # NO log file issues at all.
1126: }
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