Annotation of loncom/interface/printout.pl, revision 1.162
1.1 sakharuk 1: #!/usr/bin/perl
1.37 albertel 2: # CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc.
3: #
1.162 ! raeburn 4: # $Id: printout.pl,v 1.161 2016/01/28 19:37:42 damieng 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) {
1.161 damieng 212: print('<p>'.&mt("[_1]Return[_2] to resource.",
1.133 foxr 213: "<a href=\"$backref\"><b>","</b></a>").'</p>');
1.161 damieng 214: print('<p><a href="javascript:gopost(\'/adm/printout\',\''.$backref.'\');">'.
215: &mt("Change Printing Options").'</a></p>'."\n");
1.133 foxr 216: }
217: my $figfile = $texfile;
218: $figfile =~ s/^(.*_printout)_\d+_\d+_\d+\.tex/$1\.dat/;
219: my $duefile = $texfile;
220: $duefile =~ s/^(.*_printout)_\d+_\d+_\d+\.tex/$1\.due/;
221:
222:
223: #-------------------------------------------------------------------------------------
224: #
225: # Each print may have associated with it a file that contains a set of figures
226: # that need to be converted to .eps from whatever form they were in when included
227: # in the resource. The name of the figure file is in $figfile. If it exists,
228: # it contains the names of the files that need to be converted, one per line.
229: #
230:
1.141 foxr 231: &debug("Figure file is $figfile");
232:
1.133 foxr 233: if (-e $figfile) {
1.141 foxr 234: &debug( "Figure file exists");
235: &debug("$figfile exists");
1.133 foxr 236: my %done_conversion;
237: my $temporary_file=IO::File->new($figfile) || die "Couldn't open fig file $figfile for reading: $!\n";
238: my @content_of_file = <$temporary_file>;
239: close $temporary_file;
240: my $noteps;
241: my %prog_state;
1.151 www 242: if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('',$#content_of_file); }
1.133 foxr 243: print('<br />');
244: foreach my $not_eps (@content_of_file) {
245: chomp($not_eps);
1.141 foxr 246: &debug( "Being asked to convert $not_eps");
1.133 foxr 247: if ($not_eps ne '') {
248: $not_eps=~s|\/\.\/|\/|g;
249: if (!$done_conversion{$not_eps}) { # Only convert multiple includes once.
250: &convert_figure($not_eps);
251: $done_conversion{$not_eps} = 1;
252: }
253: }
254: }
255: if ($advanced_role) {
256: &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state);
257: }
258: unlink($figfile);
259: }
260: # End of figure conversion section:
261: #
262: #--------------------------------------------------------------------------------------------
1.135 foxr 263: #
264: # Figure out which Tex files we need to process. If this is a large class e.g.
265: # the instructor may have asked that the printout be by section, one section per file
266: # in that case, the output tex fiels will be the base filename with 3 digit serial numbers
267: # just prior to the .tex file type.
268: # By the time this loop exits, @texfile is an array of the files to process.
269: #
1.133 foxr 270:
1.135 foxr 271: my @texfile=($texfile);
272: if ($number_of_files>1) {
273: @texfile=();
274: for (my $i=1;$i<=$number_of_files;$i++) {
275: my $new_texfile=$texfile;
276: $new_texfile=~s/\.tex//;
277: $new_texfile = sprintf("%s_%03d.tex", $new_texfile,$i);
278: push @texfile,$new_texfile;
279: }
280: }
1.39 sakharuk 281:
1.135 foxr 282: #--------------------------------------------------------------------------------------------
1.43 sakharuk 283:
1.135 foxr 284: my $ind=-1;
1.98 albertel 285:
1.49 albertel 286: my %prog_state;
1.135 foxr 287: if ($advanced_role) {
1.151 www 288: %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('',$number_of_files);
1.135 foxr 289: }
1.61 albertel 290: print "<br />";
1.135 foxr 291: my $num_files = @texfile; # How does this differ from $number_of_files , can that be 0?
292:
293:
294:
295:
1.43 sakharuk 296: foreach $texfile (@texfile) {
1.49 albertel 297: my $status_statement='';
298: my $link_text='download PDF';
299: $ind++;
1.135 foxr 300:
301: #---------------------------------------------------------------------------------------
302: # This chunk of code
303: # determines the status message for the printout, and the download link text.
304: # If the print is for one or more students, both will contain the range of students
305: # covered by this file.
306: #
307:
1.49 albertel 308: my @stud_info=split(/_END_/,$names_pack[$ind]);
1.135 foxr 309: my @tempo_array=split(/:/,$stud_info[0]); # username:domain:section:full name:...
1.49 albertel 310: my $name;
1.88 foxr 311: my $name_range='';
1.135 foxr 312:
1.154 raeburn 313: # $name -> Either user's full name or username:domain
1.158 raeburn 314: # $name_range -> Either user's last name or username.
1.135 foxr 315:
1.49 albertel 316: if ($tempo_array[3]) {
317: $name=$tempo_array[3];
1.157 raeburn 318: $name =~ s{^\s+|\s+$}{}g;
319: if ($name =~ /,/) {
320: ($name_range) = split(/,/,$name, 2);
321: } elsif ($name =~ /\s/) {
322: $name_range = $name;
323: $name_range =~ s/\s+/_/;
324: } else {
325: $name_range = $name;
326: }
327: $name_range =~ s/[^\w\:\-]+//g;
1.49 albertel 328: } else {
1.154 raeburn 329: $name=$tempo_array[0].':'.$tempo_array[1];
1.88 foxr 330: $name_range = $tempo_array[0];
331: }
1.135 foxr 332:
333: # If there truly is a name add it to the status text so we know which
334: # user is getting printed.
335: #
336:
1.154 raeburn 337: if (($name ne "") && ($name ne ':') ) { # Could be printing codes...
1.88 foxr 338: $link_text='<b>'.$name.'</b>';
339: $status_statement.=$name;
1.49 albertel 340: }
1.135 foxr 341:
342: # Group of students being printed...
343: # $name_range -> first student's name - last student's name
344: #
345:
1.49 albertel 346: if ($#stud_info>0) {
347: @tempo_array=split(/:/,$stud_info[-1]);
1.48 albertel 348: if ($tempo_array[3]) {
349: $name=$tempo_array[3];
1.157 raeburn 350: $name =~ s{^\s+|\s+$}{}g;
351: my $lastname;
352: if ($name =~ /,/) {
353: ($lastname) = split(/,/, $name,2);
354: } elsif ($name =~ /\s/) {
355: $lastname = $name;
356: $lastname =~ s/\s+/_/;
357: } else {
358: $lastname = $name;
359: }
1.89 foxr 360: $name_range .= "-".$lastname;
1.157 raeburn 361: $name_range =~ s/[^\w\:\-]+//g;
1.48 albertel 362: } else {
1.154 raeburn 363: $name=$tempo_array[0].':'.$tempo_array[1];
1.88 foxr 364: $name_range .= '-'.$tempo_array[0];
365: }
1.154 raeburn 366: if (($name ne "") && ($name ne ':')) {
1.88 foxr 367: $link_text.=' - <b>'.$name.'</b>';
368: $status_statement.=' - '.$name;
369:
1.48 albertel 370: }
1.88 foxr 371: }
1.135 foxr 372:
373: # $name_range is the range of names in this file.
374: # $name is the first of the names in this file.
375: #
376: #-----------------------------------------------------------------------
377:
378: # If the number of files is > 1, but we don't have multiple
379: # student names, we must be printing an exam from codes.
380: # The download link becomes the filename (basename.tex
381: # The status info has the basename appended to it.
382: #
383: if(($num_files > 1) && ($link_text eq 'download PDF')) {
1.88 foxr 384: $link_text = '<b>'.basename($texfile,'.tex').'.pdf</b>';
385: $status_statement .= basename($texfile);
386: }
1.135 foxr 387:
388:
389: #------------------------------------------------------------------------
390:
1.88 foxr 391: $name_range =~ s/'//g; # O'Neil -> ONeil e.g.
1.135 foxr 392:
393:
1.88 foxr 394: print "<br/>";
1.135 foxr 395: if ($advanced_role) {
1.151 www 396: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,&mt('Creating PDF for: [_1]',$status_statement));
1.135 foxr 397: }
398:
399: if (-e $texfile) { # Ensure the tex file exists:
400:
401: #---------------------------------------------------------------------
402: #
403: # Put username ranges into the original tex
404: # Tex filename from which they'll propagate into the other filenames as well.
405: #
406:
1.88 foxr 407: if (($name_range ne '') && ($num_files > 1)) {
408: my $newtexfile = $texfile;
409: $newtexfile =~ s/\.tex/$name_range\.tex/;
410: rename($texfile, $newtexfile);
411: $texfile = $newtexfile;
412: }
1.135 foxr 413:
414: #---------------------------------------------------------------------
415:
1.29 sakharuk 416: $texfile =~ m/^(.*)\/([^\/]+)$/;
417: my $name_file = $2;
418: my $path_file = $1.'/';
419: chdir $path_file;
1.132 www 420: my $dvi_file= $name_file; $dvi_file =~ s/\.tex$/\.dvi/;
1.135 foxr 421: &make_dvi_file($name_file,
422: $dvi_file,
423: $tableofcontents,
424: $tableofindex,
425: $status_statement,
426: \%prog_state,
427: $busy_wait_timeout);
1.90 foxr 428:
429:
1.135 foxr 430: #Do we have a latex error in the log file?
1.35 sakharuk 431:
1.105 foxr 432:
1.135 foxr 433: my $logfilename = $texfile; $logfilename =~ s/\.tex$/\.log/;
1.115 foxr 434:
1.63 sakharuk 435:
1.135 foxr 436: if (&analyze_logfile($logfilename, $texfile, $advanced_role)) {
437:
1.119 foxr 438:
1.29 sakharuk 439: #LaTeX successfully parsed tex file
440: $name_file =~ s/\.tex/\.dvi/;
441: my $new_name_file = $name_file;
442: $new_name_file =~ s/\.dvi/\.ps/;
1.162 ! raeburn 443: # Explicitly include a switch for papertype, otherwise dvips will default
! 444: # to whatever is listed first in config.ps (which in most cases is a4).
! 445: # Historically (since 2004) LON-CAPA printing expected to use the default,
! 446: # i.e., a papertype of a4, when the user selected letter [8 1/2 x 11 in]
! 447: # in the Layout options, so I follow that convention if $papera is letter.
1.67 sakharuk 448: my $papera=$paper;
1.162 ! raeburn 449: if ($papera eq 'letter') {$papera=' a4';}
1.62 sakharuk 450: if ($papera ne '') {$papera='-t'.$papera;}
1.139 foxr 451: my $extra_ps_header = $perlvar{'lonLib'} .'/includepsheader.ps';
452: my $comma = "dvips $papera -h $extra_ps_header -Ppdf -G0 -o $new_name_file";
1.59 albertel 453: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
454: "for $status_statement now Converting to PS",
455: \%prog_state,$new_name_file);
1.115 foxr 456: #
457: # One last little hinky kinky thing.
458: # It's just possible that some fonts could not be maded
459: # at the resolution of the pdf print driver.
460: # In that case a file called missfont.log will have been
461: # created that will contain the commands that were attempted
462: # to create the missing fonts. If we basically
463: # take all the 8000 strings in that file, and
464: # replace them with 600 (the ljfour resolution)
465: # run the commands in that file and redvips,
466: # we'll be able to print the missing glyphs at 600dpi.
467: #
468: # Supposedly it is possible to tune TeX/Metafont to do this
469: # right but I failed to get that to work when following the
470: # docs at the tug site, hence this rather kludgey fix.
471: #
1.135 foxr 472:
1.115 foxr 473: my $print_directory = dirname($name_file);
474: my $missfonts_file = $print_directory."/missfont.log";
1.116 albertel 475: #print("<br /> Missing fonts file is: $missfonts_file");
1.115 foxr 476: if (-e $missfonts_file) {
1.116 albertel 477: #print("<br />Missing fonts file exists\n");
1.124 albertel 478: &create_missing_fonts($missfonts_file,\%prog_state);
1.118 albertel 479: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
1.115 foxr 480: "for $status_statement dvips generated missing fonts",
481: \%prog_state, $new_name_file);
482: }
1.29 sakharuk 483: if (-e $new_name_file) {
1.102 foxr 484: my $latex_file = $name_file;
485: $latex_file =~ s/\.dvi/\.tex/;
486: &repaginate($new_name_file, $latex_file, $numberofcolumns);
1.135 foxr 487:
488: &make_dvi_file($latex_file,
489: $name_file,
490: $tableofcontents,
491: $tableofindex,
492: $status_statement,
493: \%prog_state,
494: $busy_wait_timeout);
495:
496:
1.102 foxr 497: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
498: "for $status_statement dvips to repaginate",
499: \%prog_state, $new_name_file);
1.115 foxr 500:
1.61 albertel 501: print "<br />";
1.29 sakharuk 502: $new_name_file =~ m/^(.*)\./;
1.59 albertel 503: my $ps_file = my $tempo_file = $1.'temporar.ps';
504: my $pdf_file = $1.'.pdf';
1.82 albertel 505: $papera=~s/t/p/;
1.148 foxr 506: #----
507: # The code below uses fixps to make pdf include in sequences work.
508: #
509: # $comma = "fixps --force $new_name_file";
510: # &debug("FIXPS command: $comma");
511: # &busy_wait_command("$comma 1>$tempo_file 2>/dev/null",
512: # "for $status_statement now validating PS",
513: # \%prog_state,$tempo_file);
514:
515: #---
516: # The code below uses gs to make pdf includes in sequences work
517:
518: # Use gs to fix the postscript -> level 1.5
1.149 foxr 519: # .. if pdfs were included
1.148 foxr 520:
1.149 foxr 521: if ($pdfs_converted > 0) {
522: $comma = "gs -sDEVICE=pswrite -dLanguageLevel=1.5 ";
523: &busy_wait_command("$comma -o $tempo_file $new_name_file 2>/dev/null 1>/dev/null",
524: "for $status_statement now validating PS",
525: \%prog_state, $tempo_file);
526:
1.148 foxr 527: #---
1.149 foxr 528: &busy_wait_command("mv $tempo_file $new_name_file",
529: 'File move', \%prog_state, $new_name_file);
530: }
1.29 sakharuk 531: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
1.144 raeburn 532: $comma = "psnup $papera -2 -s1.0 $new_name_file";
1.141 foxr 533: &debug("PSNUP command: $comma");
1.144 raeburn 534: &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
1.59 albertel 535: "for $status_statement now Modifying PS layout",
536: \%prog_state,$tempo_file);
1.29 sakharuk 537: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
1.144 raeburn 538: $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)" '.$new_name_file;
1.141 foxr 539: &debug("PSTOPS command: $comma ");
1.144 raeburn 540: &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
1.59 albertel 541: "for $status_statement now Modifying PS layout",
542: \%prog_state,$tempo_file);
1.29 sakharuk 543: } else {
1.59 albertel 544: $ps_file=$new_name_file;
545: }
1.67 sakharuk 546: my $addtoPSfile={'legal'=>'<< /PageSize [612 1008] >> setpagedevice',
547: 'tabloid'=>'<< /PageSize [792 1224] >> setpagedevice',
548: 'executive'=>,'<< /PageSize [540 720] >> setpagedevice',
549: 'a2'=>'<< /PageSize [1195.02 1690.09] >> setpagedevice',
550: 'a3'=>'<< /PageSize [842 1195.02] >> setpagedevice',
551: 'a4'=>'<< /PageSize [595.2 842] >> setpagedevice',
552: 'a5'=>'<< /PageSize [421.1 595.2] >> setpagedevice',
553: 'a6'=>'<< /PageSize [298.75 421.1] >> setpagedevice',
554: };
555: if ($paper ne 'letter') {
1.69 matthew 556: open(FFH,'<',$ps_file) || die "Couldn't open ps file $ps_file for reading: $!\n";
1.63 sakharuk 557: my $new_ps_file='new'.$ps_file;
1.69 matthew 558: open(FFHS,'>',$new_ps_file) || die "Couldn't open new ps file $new_ps_file for reading: $!\n";
1.67 sakharuk 559: print FFHS $addtoPSfile->{$paper}."\n";
1.63 sakharuk 560: while (<FFH>) {
561: print FFHS $_;
562: }
1.62 sakharuk 563: close(FFH);
1.63 sakharuk 564: close(FFHS);
565: $ps_file=$new_ps_file;
1.62 sakharuk 566: }
1.141 foxr 567: &busy_wait_command("ps2pdf13 $ps_file $pdf_file 1>/dev/null 2>/dev/null",
1.59 albertel 568: "for $status_statement now Converting PS to PDF",
569: \%prog_state,$pdf_file);
570:
1.29 sakharuk 571: my $texlog = $texfile;
572: my $texaux = $texfile;
573: my $texdvi = $texfile;
574: my $texps = $texfile;
575: $texlog =~ s/\.tex/\.log/;
576: $texaux =~ s/\.tex/\.aux/;
577: $texdvi =~ s/\.tex/\.dvi/;
578: $texps =~ s/\.tex/\.ps/;
579: my @garb = ($texlog,$texaux,$texdvi,$texps);
1.22 sakharuk 580: # unlink @garb;
1.120 albertel 581: unlink($duefile);
1.153 bisitz 582: print
583: '<p>'
584: .&mt('[_1] - [_2]Your PDF file[_3] is ready for download.',
585: $link_text,'<a href="/prtspool/'.$pdf_file.'">','</a>')
586: .'</p>'."\n";
1.29 sakharuk 587: }
1.120 albertel 588: unlink($missfonts_file);
1.119 foxr 589:
1.63 sakharuk 590: }
1.29 sakharuk 591: } else {
1.153 bisitz 592: print
593: '<p class="LC_error">'
594: .&mt('The LaTeX file [_1] was not created successfully.',
595: '<span class="LC_filename">'.$texfile.'</span>')
596: .'</p>';
1.14 sakharuk 597: }
1.43 sakharuk 598: }
1.45 sakharuk 599: print "<br />";
1.44 sakharuk 600: if ($number_of_files>1) {
1.45 sakharuk 601: my $zipfile=$texfile[0];
602: $zipfile=~s/\.tex/\.zip/;
603: my $statement="zip $zipfile";
1.44 sakharuk 604: foreach my $file (@texfile) {
1.45 sakharuk 605: $file=~s/\.tex/.\pdf/;
606: $statement.=' '.$file;
1.44 sakharuk 607: }
1.153 bisitz 608: print('<p>'.&mt('Zip Output:')."\n<pre>\n");
1.49 albertel 609: system($statement);
1.153 bisitz 610: print("</pre></p>\n");
1.123 albertel 611: $zipfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
1.153 bisitz 612: print
613: '<p>'
614: .&mt('A [_1]ZIP file[_2] of all the PDF files is ready for download.',
615: '<a href="'.$zipfile.'">','</a>')
616: .'</p>';
1.44 sakharuk 617: }
1.92 albertel 618: if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
1.97 albertel 619: print(&Apache::loncommon::end_page());
1.59 albertel 620: my $done;
1.102 foxr 621:
1.59 albertel 622: sub REAPER {
623: $done=1;
624: }
1.129 foxr 625: #
626: # Execute a command updating the status window as the command's
627: # output file builds up (at intervals of a second).
628: #
629: # If the timeout argument defined, then if that many seconds
630: # elapses without an increase in the size of the output file,
631: # the command will be killed (this deals with the case when
632: # latex crawls into an infinite loop).
633: #
1.59 albertel 634: sub busy_wait_command {
1.129 foxr 635: my ($command,$message,$progress_win,$output_file, $timeout)=@_;
1.59 albertel 636:
637: $SIG{CHLD} = \&REAPER;
638: $done=0;
639: my $pid=open(CMD,"$command |");
1.92 albertel 640: if ($advanced_role) {
1.60 albertel 641: &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);
642: }
1.129 foxr 643: my $last_size = 0;
644: my $unchanged_time = 0;
1.59 albertel 645: while(!$done) {
646: sleep 1;
647: my $extra_msg;
648: if ($output_file) {
649: my $size=(stat($output_file))[7];
650: $extra_msg=", $size bytes generated";
1.129 foxr 651: if ($size == $last_size) {
652: $unchanged_time++;
653: if ($timeout && ($unchanged_time > $timeout)) {
1.152 golterma 654: print '<p class="LC_error">'.&mt('Operation timed out!')."</p>\n";
1.131 www 655: print "<p>Executing $command, the output file $output_file did not grow\n";
1.130 foxr 656: print "after $timeout seconds. This <em>may</em> indicate $command\n";
1.131 www 657: print "is in an infinite loop.\n";
658: print "See if printing fewer copies helps. Please contact LON-CAPA\n";
659: print "support about this in any event.";
1.130 foxr 660: print "</p>";
1.129 foxr 661: kill(9, $pid); # Reaper will do the rest...I hope there's errors in the log.
662: }
663: } else {
664: $last_size = $size;
665: $unchanged_time = 0;
666: }
1.59 albertel 667: }
1.92 albertel 668: if ($advanced_role) {
1.151 www 669: &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message.$extra_msg);
1.60 albertel 670: }
1.59 albertel 671: }
672: $SIG{CHLD}='IGNORE';
673: close(CMD);
674: }
1.1 sakharuk 675:
1.135 foxr 676: # Make the dvi file (or rather try to), from the latex file and the
677: # various bits and pieces that control how the latex file is processed:
678: # LaTeX is run as many times a needed to make this all happen... this may
679: # result in several runs of LaTeX that just are errors if the LaTeX is
1.136 bisitz 680: # bad, but the printing subsystem is _supposed_ to not do that.
1.135 foxr 681: #
682: # Parameters:
683: # name_file - Name of the LaTeX file to process.
684: # dvi_file - Name of resulting dvi file.
685: # tableofcontents - "yes" if we are supposed to make a table of contents.
686: # tableofindex - "yes" if we are suposed to make an index.
687: # status_statement - Part of the status statement for ths status window.
688: # prog_state - Reference to the program state hash.
689: # busy_wait_timeout- Seconds without any progress that imply a problem.
690: #
691: #
692: sub make_dvi_file {
693: my ($name_file,
694: $dvi_file,
695: $tableofcontents,
696: $tableofindex,
697: $status_statement,
698: $prog_state,
699: $busy_wait_timeout) = @_;
700:
701:
702: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
703: "for $status_statement now LaTeXing file",
704: $prog_state,$dvi_file, $busy_wait_timeout);
705:
706: # If the tableof contents was requested, we need to run
707: # LaTex a couple more times to get all the references sorted out.
708:
709: if ($tableofcontents eq 'yes') {
710: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
711: "for $status_statement First LaTeX of file for table of contents",
712: $prog_state,$dvi_file, $busy_wait_timeout);
713: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
714: "for $status_statement Second LaTeX of file for table of contents",
715: $prog_state,$dvi_file,$busy_wait_timeout);
716: }
717:
718: # And makeindex and another run of LaTeX to incorporate it if the index
719: # is enabled.
720:
721:
722: if ($tableofindex eq 'yes') {
723: my $idxname=$name_file;
724: $idxname=~s/\.tex$/\.idx/;
725: &busy_wait_command("makeindex $idxname",
726: "making index file",
727: $prog_state,$idxname);
728: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
729: "for $status_statement now LaTeXing file for index section",
730: $prog_state,$dvi_file, $busy_wait_timeout);
731: }
732:
733: }
734:
735:
1.102 foxr 736: # Repagninate
1.99 foxr 737: # What we need to do:
738: # - Count the number of pages in each student.
1.102 foxr 739: # - Rewrite the latex file replacing the \specials that
740: # mark the end of student with an appropriate number of newlines.
741: # parameters:
742: # psfile - Postscript filename
743: # latexfile - LaTeX filename
744: # columns - number of columns.
745: sub repaginate {
1.100 foxr 746:
747: # We will try to do this in 2 passes through the postscript since
748: # the postscript is potentially large, to do 2 passes, the first pass
749: # must be able to calculate the total number of document pages so that
750: # at the beginning of the second pass we already know how to replace
751: # %%Pages:
752:
753: # Figure out
754: # 1. Number of pages in the document
755: # 2. Maximum number of pages in a student
756: # 3. Number of pages in each student.
1.99 foxr 757:
1.102 foxr 758: my ($postscript_filename, $latex_filename, $num_columns) = @_;
1.99 foxr 759: open(PSFILE, "<$postscript_filename");
1.100 foxr 760: my $line;
761: my $total_pages; # Total pages in document.
762: my $seen_pages = 0; # There are several %%Pages only the first is useful
763: my @pages_in_student; # For each student his/her initial page count.
764: my $max_pages = 0; # Pages in 'longest' student.
1.102 foxr 765: my $page_number = 0;
1.151 www 766: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,&mt("Counting pages for student: [_1]",1));
1.104 foxr 767:
1.100 foxr 768: while ($line = <PSFILE>) {
769:
770: # Check for total pages (%%Pages:)
771:
1.101 albertel 772: if (($line =~ /^%%Pages:/) && (!$seen_pages)) {
1.100 foxr 773: my @pageinfo = split(/ /,$line);
774: $total_pages = $pageinfo[1];
775: $seen_pages = 1;
776: }
777: # Check for %%Page: n m $page_number will be the
778: # biggest of these until we see an endofstudent.
779: # Note that minipages generate spurious %Page: 1 1's so
780: # we only are looking for the largest n (n is page number at the
781: # bottom of the page, m the page number within the document.
782: #
1.102 foxr 783:
1.127 albertel 784: if ($line =~ /^%%Page:\s+\d+\s+\d+/) {
1.120 albertel 785: my @pageinfo = split(/\s+/, $line);
1.100 foxr 786: if ($page_number < $pageinfo[1]) {
787: $page_number = $pageinfo[1];
1.110 albertel 788: } elsif ($pageinfo[2] ne 1) {
789: # current page count reset, and it's not because of a
790: # minipage
791: # - save the page_number, reset and, if necessary
792: # update max_pages.
793: push(@pages_in_student, $page_number);
1.151 www 794: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,&mt("Counting pages for student: [_1]", scalar(@pages_in_student)));
1.110 albertel 795: if ($page_number > $max_pages) {
796: $max_pages = $page_number;
797: }
798: $page_number = $pageinfo[1];
1.100 foxr 799: }
800: }
801:
802:
803: }
1.110 albertel 804: # file ended so one more student
805: push(@pages_in_student, $page_number);
1.151 www 806: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,&mt("Counting pages for student: [_1]",scalar(@pages_in_student)));
1.110 albertel 807: if ($page_number > $max_pages) {
808: $max_pages = $page_number;
809: }
810: $page_number = 0;
811:
1.99 foxr 812: close(PSFILE);
1.102 foxr 813:
814: # If 2 columns, max_pages must go to an even number of columns:
1.103 foxr 815:
1.102 foxr 816:
817: if ($num_columns == 2) {
818: if ($max_pages % 2) {
819: $max_pages++;
820: }
821: }
1.100 foxr 822:
1.102 foxr 823: # Now rewrite the LaTex file, substituting our \special
824: # with an appropriate number of \newpage directives.
825:
826: my $outfilename = $latex_filename."temp";
827:
828: open(LATEXIN, "<$latex_filename");
829: open(LATEXOUT, ">$outfilename");
830:
831:
1.110 albertel 832: my $student_number = 0; # Index of student we're working on.
1.151 www 833: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,&mt("Repaginating student: [_1]",$student_number+1));
1.102 foxr 834:
835: while (my $line = <LATEXIN>) {
836: if ($line eq "\\special{ps:ENDOFSTUDENTSTAMP}\n") {
837: # only end of student stamp if next line is ENDOFSTUDENTSTAMP:
838:
839:
840: # End of student replace with 0 or more newpages.
841:
842: my $addlines = $max_pages - $pages_in_student[$student_number];
843: while($addlines) {
1.108 albertel 844: print LATEXOUT '\clearpage \strut \clearpage';
1.105 foxr 845:
1.102 foxr 846: $addlines--;
1.100 foxr 847: }
1.102 foxr 848:
1.100 foxr 849: $student_number++;
1.151 www 850: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,&mt("Repaginating student: [_1]",$student_number+1));
1.102 foxr 851:
852: } else {
853: print LATEXOUT $line;
1.100 foxr 854: }
855: }
856:
1.102 foxr 857: close(LATEXIN);
858: close(LATEXOUT);
1.108 albertel 859: rename($outfilename, $latex_filename);
1.100 foxr 860:
1.99 foxr 861: }
1.4 sakharuk 862:
1.115 foxr 863: #
864: # Create missing fonts given a latex missfonts.log file.
865: # This file will have lines like:
866: #
867: # mktexpk --mfmode ljfour --bdpi 8000 --mag 1+0/8000 --dpi 8000 tcrm0500
868: #
869: # We want to execute those lines with the 8000's changed to 600's
870: # in order to match the resolution of the ljfour printer.
871: # Of course if some wiseguy has changed the default printer from ljfour
872: # in the dvips's config.ps file that will break so we'll also
873: # ensure that --mfmode is ljfour.
874: #
875: sub create_missing_fonts {
876: my ($fontfile, $state) = @_;
877:
878: # Open and read in the font file..we'll read it into the array
879: # font_commands.
880: #
1.118 albertel 881: open(my $font_handle, $fontfile);
1.115 foxr 882: my @font_commands = <$font_handle>;
1.118 albertel 883:
884: # make the list contain each command only once
885: my %uniq;
886: @font_commands = map { $uniq{$_}++ == 0 ? $_ : () } @font_commands;
1.115 foxr 887:
888: # Now process each command replacing the appropriate 8000's with
889: # 600's ensuring that font names with 8000's in them are not corrupted.
890: # and if the --mfmode is not ljfour we turn it into ljfour.
891: # Then we execute the command.
892: #
1.118 albertel 893:
1.115 foxr 894: foreach my $command (@font_commands) {
1.116 albertel 895: #print("<br />Raw command: $command");
1.115 foxr 896: $command =~ s/ 8000/ 600/g; # dpi directives.
897: $command =~ s/\/8000/\/600/g; # mag directives.
1.116 albertel 898: #print("<br />After dpi replacements: $command");
1.115 foxr 899:
900: my @cmdarray = split(/ /,$command);
901: for (my $i =0; $i < scalar(@cmdarray); $i++) {
902: if ($cmdarray[$i] eq '--mfmode') {
903: $cmdarray[$i+1] = "ljfour";
904: }
905: }
1.116 albertel 906: #print("<br /> before reassembly : (@cmdarray)");
1.115 foxr 907: $command = join(" ", (@cmdarray));
908:
1.116 albertel 909: #print("<br />Creating fonts via command: $command");
1.118 albertel 910: &busy_wait_command("$command 1>/dev/null 2>/dev/null",
1.115 foxr 911: "Creating missing font",
1.124 albertel 912: $state);
1.115 foxr 913:
914: }
915:
916: }
1.133 foxr 917: #
918: # Convert a figure file to encapsulated postscript:
919: # At present, this is using a lot of file scoped globals to pass data around.
920: # Parameters:
921: # not_eps - The name of the file to convert which, presumably, is not
922: # already an eps file.
923: #
924: sub convert_figure {
925: my ($not_eps) = @_;
1.141 foxr 926: &debug("in convert_figure");
1.133 foxr 927:
928: my $status_statement='EPS picture for '.$not_eps;
929: my $eps_f = $not_eps;
1.134 foxr 930:
1.150 www 931: if ($eps_f=~/\/home\/httpd\/html\/priv\/[^\/]+\/([^\/]+)\//) {
932: $eps_f=~s/\/home\/httpd\/html\/priv\/[^\/]+\/([^\/]+)/$1/;
1.133 foxr 933: } elsif ($eps_f=~/$perlvar{'lonDocRoot'}\/res\//) {
1.134 foxr 934: $eps_f=~ s/$perlvar{'lonDocRoot'}\/res\/(.+)/$1/;
1.133 foxr 935: } elsif ($eps_f=~/$perlvar{'lonUsersDir'}\//) {
1.134 foxr 936: $eps_f=~ s/$perlvar{'lonUsersDir'}\/([^\/]+)\/\w\/\w\/\w\/(.+)/$1\/$2/;
1.133 foxr 937: }
1.134 foxr 938:
939: $eps_f = $perlvar{'lonPrtDir'}.'/'.$eps_f;
940:
941: # Spaces are problematic for system commands and LaTeX, replace with _
942:
1.160 raeburn 943: $eps_f =~ s/ /\_/g;
1.134 foxr 944:
1.133 foxr 945: #
1.134 foxr 946: # If the file is already an .eps or .ps file (eps_f still has the original
947: # file type),
1.133 foxr 948: # We really just need to copy it from where it was to prtspool
949: # but with the spaces substituted to _'s.
950: #
1.134 foxr 951: my ($nsname,$path, $sext) = &fileparse($eps_f, qr/\.(ps|eps)/i);
1.133 foxr 952: if ($sext =~/ps$/i) {
953: &File::Path::mkpath($path,0,0777);
954: copy("$not_eps", "$eps_f");
955: } else {
956:
957: $eps_f .= '.eps'; # Just append the eps ext.
1.134 foxr 958: my $path= &dirname($eps_f);
1.133 foxr 959: &File::Path::mkpath($path,0,0777);
960: $not_eps =~ s/^\s+//;
961: $not_eps =~ s/\s+$//;
962: $not_eps =~ s/ /\\ /g;
1.147 droeschl 963: my $prettyname=$not_eps;
1.133 foxr 964: if ($advanced_role) {
965: $prettyname=~s|$perlvar{'lonDocRoot'}/|/|;
1.151 www 966: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,&mt('Converting to EPS: [_1]',$prettyname));
1.133 foxr 967: }
1.141 foxr 968: #
969: # If the file is a PDF, need to use pdftops to convert it to a ps file.
970: # otherwise use imagemagik:
971: #
972: if($not_eps =~/\.(pdf|PDF)$/) {
973:
974: #
975: # For whatever reason, pure postscript conversions have to be
976: # in the same dir as the base file:
977: #
978: $eps_f = &basename($eps_f);
979: $eps_f = $perlvar{'lonPrtDir'}.'/'.$eps_f;
980:
981: &debug("Converting pdf $not_eps to postscript: $eps_f");
982: system("pdftops $not_eps $eps_f");
1.149 foxr 983: $pdfs_converted++; # Need to fix ps in last pass.
1.141 foxr 984: } else {
985: system("convert $not_eps $eps_f");
1.147 droeschl 986: if($? and $advanced_role){
1.155 bisitz 987: print '<p class="LC_warning">'
1.156 raeburn 988: .&mt('An error occurred during the conversion of [_1].',
1.155 bisitz 989: '<span class="LC_filename">'.$prettyname.'</span>')
990: .'<br />'
991: .&mt('If possible try to save this image using different settings and republish it.')
992: .'</p>';
1.147 droeschl 993: }
1.141 foxr 994: }
1.134 foxr 995:
1.133 foxr 996: if (not -e $eps_f) {
997: # converting an animated gif creates either:
998: # anim.gif.eps.0
999: # or
1000: # anim.gif-0.eps
1001: for (my $i=0;$i<10000;$i++) {
1002: if (-e $eps_f.'.'.$i) {
1003: rename($eps_f.'.'.$i, $eps_f);
1004: last;
1005: }
1006: my $anim_eps = $eps_f;
1007: $anim_eps =~ s/(\.[^.]*)\.eps$/$1-$i\.eps/i;
1008: if (-e $anim_eps) {
1009: rename($anim_eps, $eps_f);
1010: last;
1011: }
1012: }
1013: }
1014:
1015: # imagemagick 6.2.0-6.2.7 fails to properly handle
1016: # convert anim.gif anim.gif.eps
1017: # it creates anim.eps instead.
1018: if (not -e $eps_f) {
1019: my $eps_f2 = $eps_f;
1020: $eps_f2 =~ s/\.[^.]*\.eps$/\.eps/i;
1021: if(-e $eps_f2) {
1022: rename($eps_f2,$eps_f);
1023: }
1024: }
1025: }
1026:
1027: }
1.135 foxr 1028: #
1029: # Analyze a LaTeX logfile producing appropriate output on error and
1030: # returning a boolean to let the caller know if, in our opinion, it's
1031: # worth continuing on to produce the PDF file.
1032: #
1033: # Parameters:
1034: # logfilename - Name of the logfile.
1035: # texfile - Name of the LaTeX file that was being processed.
1036: # advanced_role - True if the user is privileged with respect to the printout
1037: # (e.g. is the course coordinator or some such thing).
1038: # Returns:
1039: # 1 - Caller is advised to continue to create the PDF.
1040: # 0 - Caller need not bother creating the PDF.
1041: # Side Effects:
1042: # Messages are printed to describe any errors that have been encountered.
1043: # NOTE:
1044: # The current policy is to assume that if LaTeX decided to insert some text
1045: # it has salvaged the resource and the resource can be printed.. in that case
1046: # a message is emitted from this sub.
1047: #
1048: sub analyze_logfile {
1049: my ($logfilename, $texfile, $advanced_role) = @_;
1050:
1051: my $temporary_file=IO::File->new($logfilename) || die "Couldn't open log file $logfilename for reading: $!\n";
1052: my @content_of_file = <$temporary_file>;
1053: close $temporary_file;
1054: my $body_log_file = join(' ',@content_of_file);
1055: $logfilename =~ s/\.log$/\.html/;
1056: $temporary_file = IO::File->new('>'.$logfilename);
1057: print $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n";
1058: if ($body_log_file=~m/!\s+Emergency stop/) {
1059: my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
1060: my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
1061: my $badresource;
1062: my $badtext;
1063: if ($whereitbegins!=-1 and $whereitends!=-1) {
1064: $badtext = substr($body_log_file,$whereitbegins+26, $whereitends-$whereitbegins-26);
1065: $whereitbegins = rindex $badtext,'located in';
1066: if ($whereitbegins != -1) {
1067:
1068: $badresource = substr($badtext, $whereitbegins+27,
1069: length($badtext) - $whereitbegins - 48);
1070: # print "<br />failing resourcename: $badresource<br />";
1071: }
1.136 bisitz 1072: }
1.135 foxr 1073:
1074: # Guys with privileged roles get a more detailed error output:
1075:
1076: if ($advanced_role) {
1077: #LaTeX failed to parse tex file
1.138 biermanm 1078: print "<h2>".&mt('LaTeX could not successfully parse your TeX file.')."</h2>";
1.136 bisitz 1079: print &mt('It probably has errors in it.')."<br />";
1080: if ($badtext) {
1.156 raeburn 1081: print &mt('With very high probability this error occurred in [_1].',$badtext)
1.136 bisitz 1082: ."<br /><br />";
1083: }
1084: print &mt('Here are the error messages in the LaTeX log file:')
1085: ."<br /><pre>";
1.135 foxr 1086:
1087: my $sygnal = 0;
1088: for (my $i=0;$i<=$#content_of_file;$i++) {
1089: if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {
1090: $sygnal = 1;
1091: }
1092: if ($content_of_file[$i]=~m/Here is how much of/) {
1093: $sygnal = 0;
1094: }
1095: if ($sygnal) {
1096: print "$content_of_file[$i]";
1097: }
1098: }
1099: print "</pre>\n";
1100: # print "<br /> Advanced role <br />";
1101: $logfilename=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
1.136 bisitz 1102: print "<b><big>"
1103: .&mt('The link to [_1]Your log file[_2]','<a href="'.$logfilename.'">','</a>')
1104: ."</big></b>\n";
1.135 foxr 1105: #link to original LaTeX file
1106: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
1107: my @tex_content_of_file = <$tex_temporary_file>;
1108: close $tex_temporary_file;
1109: my $body_tex_file = join(' ',@tex_content_of_file);
1110: $texfile =~ s/\.tex$/aaaaa\.html/;
1111: $tex_temporary_file = IO::File->new('>'.$texfile);
1112: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
1113: print "<br /><br />";
1114: $texfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
1.136 bisitz 1115: print "<b><big>"
1116: .&mt('The link to [_1]Your original LaTeX file[_2]','<a href="'.$texfile.'">','</a>')
1117: ."</big></b><br /><br />\n";
1118: my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", &mt('Help on printing'));
1.135 foxr 1119: print ("$help_text");
1120:
1121: # Students on the other hand get a minimal error message, since they won't
1122: # be able to correct the error message. A message is sent to the
1123: # instructor:
1124:
1125: } else { # Student role...
1126: # at this point:
1127: # $body_log_file - contains the log file.
1128: # $name_file - is the name of the LaTeX file.
1129: # $identifier - is the unique LaTeX identifier.l
1130:
1.142 bisitz 1131: print '<p class="LC_error">';
1.136 bisitz 1132: if ($badtext) {
1133: print &mt('There are errors in [_1].',$badtext);
1134: } else {
1135: print &mt('There are errors.');
1136: }
1.142 bisitz 1137: print '</p>'
1138: .&mt('These errors prevent this resource from printing correctly.');
1139:
1.135 foxr 1140: my $tex_handle = IO::File->new($texfile);
1141: my @tex_contents = <$tex_handle>;
1142: &send_error_mail($identifier, $badresource, $body_log_file, \@tex_contents);
1.136 bisitz 1143: print "<p>"
1144: .&mt('A message has been sent to the instructor describing this failure.')
1145: ."</p>";
1146: my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", &mt('Help on printing'));
1.135 foxr 1147: print ("$help_text");
1148:
1149: }
1150:
1151: # Either way, an emergency stop does not allow us to continue so:
1152:
1153: return 0;
1154:
1155: # The branch of code below is taken if it appears that
1156: # there was no emergency stop but LaTeX had to correct the
1157: # input file to run.
1158: # In that case we need to provide error feedback, as the correction >may< not be
1159: # sufficient, we can let the game continue as there's a dvi file to process.
1160:
1161: } elsif ($body_log_file=~m/<inserted text>/) {
1162: my $whereitbegins = index $body_log_file,'<inserted text>';
1.136 bisitz 1163: print &mt('You are running LaTeX in [_1]batch mode[_2].','<b>','</b>');
1.135 foxr 1164: while ($whereitbegins != -1) {
1165: my $tempobegin=$whereitbegins;
1166: $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins;
1167: my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$whereitbegins;
1.136 bisitz 1168: print "<br />"
1169: .&mt('It has found an error in [_1][_2]and corrected it.',substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26),"<br />")."\n";
1.159 bisitz 1170: print &mt('Usually this correction is valid but you probably need to check the indicated resource one more time and implement necessary corrections by yourself.')."\n";
1.135 foxr 1171: $whereitbegins = index $body_log_file,'<inserted text>',$tempobegin+10;
1172: }
1173:
1174: if ($advanced_role) {
1175: print "<br /><br />";
1176: $logfilename=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
1.136 bisitz 1177: print "<b><big>"
1178: .&mt('The link to [_1]Your log file[_2]'
1.137 raeburn 1179: ,'<a href="'.$logfilename.'">','</a>')
1.136 bisitz 1180: ."</big></b>\n";
1.135 foxr 1181: #link to original LaTeX file
1182: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
1183: my @tex_content_of_file = <$tex_temporary_file>;
1184: close $tex_temporary_file;
1185: my $body_tex_file = join(' ',@tex_content_of_file);
1186: $texfile =~ s/\.tex$/aaaaa\.html/;
1187: $tex_temporary_file = IO::File->new('>'.$texfile);
1188: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
1189: print "<br /><br />";
1190: $texfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
1.136 bisitz 1191: print "<b><big>"
1192: .&mt('The link to [_1]Your original LaTeX file[_2]','<a href="'.$texfile.'">','</a>');
1193: print "</big></b>\n";
1.135 foxr 1194: }
1195: return 1;
1196: }
1197: return 1; # NO log file issues at all.
1198: }
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to printout.pl CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface