Annotation of loncom/interface/printout.pl, revision 1.101
1.1 sakharuk 1: #!/usr/bin/perl
1.37 albertel 2: # CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc.
3: #
4: #
5: # Copyright Michigan State University Board of Trustees
6: #
7: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
8: #
9: # LON-CAPA is free software; you can redistribute it and/or modify
10: # it under the terms of the GNU General Public License as published by
11: # the Free Software Foundation; either version 2 of the License, or
12: # (at your option) any later version.
13: #
14: # LON-CAPA is distributed in the hope that it will be useful,
15: # but WITHOUT ANY WARRANTY; without even the implied warranty of
16: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17: # GNU General Public License for more details.
18: #
19: # You should have received a copy of the GNU General Public License
20: # along with LON-CAPA; if not, write to the Free Software
21: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22: #
23: # /home/httpd/html/adm/gpl.txt
24: #
25: # http://www.lon-capa.org/
26: #
27:
1.39 sakharuk 28: use lib '/home/httpd/lib/perl';
1.76 albertel 29: use LONCAPA::loncgi;
1.38 sakharuk 30: use File::Path;
1.88 foxr 31: use File::Basename;
1.6 sakharuk 32: use IO::File;
1.7 sakharuk 33: use Image::Magick;
1.97 albertel 34: use Apache::lonhtmlcommon();
1.80 albertel 35: use Apache::lonnet;
1.97 albertel 36: use Apache::loncommon();
1.51 albertel 37: use Apache::lonlocal;
1.97 albertel 38: use Apache::lonmsg();
1.77 foxr 39: use LONCAPA::Enrollment;
1.47 sakharuk 40:
1.59 albertel 41: use strict;
1.77 foxr 42:
1.81 foxr 43:
1.77 foxr 44: # Determine if a user is operating as a student for this course/domain.
45: #Parameters:
1.92 albertel 46: # none
1.77 foxr 47: #Implicit:
48: # $env{request.role} contains the role under which this user operated this
49: # this request.
50: sub is_student {
1.92 albertel 51: return ($env{'request.role'}=~/^st\./);
1.77 foxr 52: }
53:
54: #
55: # Debugging: Dump the environment for debugging.
56: #
57: sub dumpenv {
1.84 albertel 58: print "<br />-------------------<br />";
1.77 foxr 59: foreach my $key (sort (keys %env)) {
1.84 albertel 60: print "<br />$key -> $env{$key}";
1.77 foxr 61: }
1.84 albertel 62: print "<br />-------------------<br />";
1.77 foxr 63: }
64:
65: #
66: # This sub sends a message to the appropriate person if there was an error
67: # rendering the latex At present, there's only one case to consider:
68: # a student printing inside a course results in messages to the course coordinator.
69: #Parmaeters:
70: # identifier - The unique identifier of this cgi request.
1.81 foxr 71: # badresource- Filepath to most likely failing
1.77 foxr 72: # logfile - The contents of the log file (included in the message).
73: # texfile - reference to an array containing the LaTeX input file
74: # (included in the message).
75: #Implicit inputs:
76: # From the environment:
77: # cgi.$identifier.user - User doing the printing.
78: # cgi.$identifier.domain - Domain the user is logged in on with printing.
79: # cgi.$identifier.courseid - Id of the course (if this is a course).
80: # cgi.$identifier.coursedom- Domain in which course was constituted.
81: # cgi.$identifier.resources - List of resource URL's for which the print
82: # was attempted.
83: #
84: sub send_error_mail {
1.81 foxr 85: my ($identifier, $badresource, $logfile, $texfile) = @_;
1.77 foxr 86: my $user = $env{"cgi.$identifier.user"};
87: my $domain = $env{"cgi.$identifier.domain"};
88: my $courseid = $env{"cgi.$identifier.courseid"};
89: my $coursedom= $env{"cgi.$identifier.coursedom"};
90: my $resources= $env{"cgi.$identifier.resources"};
91:
1.81 foxr 92: # resource file->URL
93: #
94: my $badurl = &Apache::lonnet::declutter($badresource);
95:
96: # &dumpenv();
1.77 foxr 97:
98:
99:
100: # Only continue if there is a user, domain, courseid, course domain
101: # and resources:
102:
103: if(defined($user) && defined($domain) && defined($courseid) &&
104: defined($coursedom) && defined($resources) ){
105:
106: # Only mail if the conditions are ripe for it:
107: # The user is a student in the course:
108: #
109:
1.92 albertel 110: if (&is_student()) {
1.77 foxr 111: # build the subject and message body:
1.84 albertel 112: # print "sending message to course coordinators.<br />";
1.81 foxr 113:
114: # Todo: Convert badurl into a url from file path:
115:
116: my $subject = "Error [$badurl] Print failed for $user".'@'.$domain;
1.77 foxr 117: my $message .= "Print failed to render LaTeX for $user".'@'."$domain\n";
118: $message .= " User was attempting to print: \n";
1.91 albertel 119: foreach my $resource (split(/:/,$resources)) {
120: $message .= " $resource\n";
121: }
1.77 foxr 122: $message .= "--------------------LaTeX logfile:------------ \n";
123: $message .= $logfile;
124: $message .= "-----------------LaTeX source file: ------------\n";
125:
126: foreach my $line (@$texfile) {
127: $message .= "$line\n";
128: }
1.81 foxr 129: my (undef, %receivers) = &Apache::lonfeedback::decide_receiver(undef, 0,
130: 1,1,1);
1.84 albertel 131: # print "<br /> sending...section: $env{'request.course.sec'}";
1.81 foxr 132: foreach my $dest (keys %receivers) {
1.84 albertel 133: # print "<br /> dest is $dest";
1.77 foxr 134: my @destinfo = split(/:/,$dest);
135: my $user = $destinfo[0];
136: my $dom = $destinfo[1];
137:
138: &Apache::lonmsg::user_normal_msg($user, $dom,
139: $subject, $message);
140:
141: # No point in looking at the return status as there's no good
142: # error action I can think of right now (log maybe?).
143: }
144: }
145: }
146: }
147:
1.49 albertel 148: $|=1;
1.39 sakharuk 149: if (! &LONCAPA::loncgi::check_cookie_and_load_env()) {
150: print <<END;
151: Content-type: text/html
152:
153: <html>
154: <head><title>Bad Cookie</title></head>
155: <body>
1.40 sakharuk 156: Your cookie information is incorrect.
1.39 sakharuk 157: </body>
158: </html>
159: END
160: return;
161: }
1.51 albertel 162: &Apache::lonlocal::get_language_handle();
163: &Apache::loncommon::content_type(undef,'text/html');
1.101 ! albertel 164:
! 165: print(&Apache::loncommon::start_page('Creating PDF'));
1.39 sakharuk 166:
1.40 sakharuk 167: my $identifier = $ENV{'QUERY_STRING'};
1.76 albertel 168: my $texfile = $env{'cgi.'.$identifier.'.file'};
169: my $laystyle = $env{'cgi.'.$identifier.'.layout'};
170: my $numberofcolumns = $env{'cgi.'.$identifier.'.numcol'};
171: my $paper = $env{'cgi.'.$identifier.'.paper'};
172: my $selectionmade = $env{'cgi.'.$identifier.'.selection'};
1.79 albertel 173: my $tableofcontents = $env{'cgi.'.$identifier.'.tableofcontents'};
174: my $tableofindex = $env{'cgi.'.$identifier.'.tableofindex'};
175: my $advanced_role = $env{'cgi.'.$identifier.'.role'};
176: my $number_of_files = $env{'cgi.'.$identifier.'.numberoffiles'}+1;
177: my $student_names = $env{'cgi.'.$identifier.'.studentnames'};
178: my $backref = &Apache::lonnet::unescape($env{'cgi.'.$identifier.'.backref'});
1.43 sakharuk 179:
1.49 albertel 180:
1.44 sakharuk 181: my @names_pack=();
182: if ($student_names=~/_END_/) {
183: @names_pack=split(/_ENDPERSON_/,$student_names);
184: }
1.39 sakharuk 185:
1.94 albertel 186: print "<a href=\"$backref\"><b>Return</b></a> to last resource.<br /><br />";
187:
1.14 sakharuk 188: my $figfile = $texfile;
189: $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;
190: my $duefile = $texfile;
191: $duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/;
192: #do we have figures?
1.73 foxr 193: # print "Figure file: $figfile\n";
1.14 sakharuk 194: if (-e $figfile) {
1.73 foxr 195: # print "$figfile exists\n";
1.42 albertel 196: my %done_conversion;
1.69 matthew 197: my $temporary_file=IO::File->new($figfile) || die "Couldn't open fig file $figfile for reading: $!\n";
1.14 sakharuk 198: my @content_of_file = <$temporary_file>;
199: close $temporary_file;
200: my $noteps;
1.49 albertel 201: my %prog_state;
1.92 albertel 202: if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Coverting Images to EPS','Picture Conversion Status',$#content_of_file,'inline','80'); }
1.94 albertel 203: print('<br />');
1.59 albertel 204: foreach my $not_eps (@content_of_file) {
1.49 albertel 205: chomp($not_eps);
1.14 sakharuk 206: if ($not_eps ne '') {
1.73 foxr 207: # print "Converting $not_eps"; # Debugging.
1.44 sakharuk 208: my $status_statement='EPS picture for '.$not_eps;
1.73 foxr 209: # print "$status_statement\n";
1.41 sakharuk 210: $not_eps=~s|\/\.\/|\/|g;
1.14 sakharuk 211: my $eps_f = $not_eps;
1.85 foxr 212: # $eps_f =~ s/\.[^.]*$/\.eps/i;
213: $eps_f .= '.eps'; # Just append the eps ext.
1.41 sakharuk 214: if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) {
215: $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/;
216: $eps_f = '/home/httpd/prtspool/'.$eps_f;
1.58 sakharuk 217: } elsif ($eps_f=~/$Apache::lonnet::perlvar{'lonDocRoot'}\/res\//) {
218: $eps_f=~m/$Apache::lonnet::perlvar{'lonDocRoot'}\/res\/(.+)/;
1.41 sakharuk 219: $eps_f = '/home/httpd/prtspool/'.$1;
1.58 sakharuk 220: } elsif ($eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\//) {
1.57 sakharuk 221: $eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\/([^\/]+)\/\w\/\w\/\w\/(.+)/;
1.56 sakharuk 222: $eps_f = '/home/httpd/prtspool/'.$1.'/'.$2;
1.41 sakharuk 223: }
1.74 foxr 224: $eps_f =~ s/ /\_/g; # Spaces are problematic for system commands and LaTeX.
1.38 sakharuk 225: my $path=$eps_f;
1.74 foxr 226: $path =~ s/\/([^\/]+)\.eps$//;
1.73 foxr 227: # print "Final file path: $path "; # Debugging
1.38 sakharuk 228: File::Path::mkpath($path,0,0777);
1.14 sakharuk 229: $not_eps =~ s/^\s+//;
230: $not_eps =~ s/\s+$//;
1.74 foxr 231: $not_eps =~ s/ /\\ /g;
1.72 albertel 232: if ( exists($done_conversion{$not_eps})) { next; }
1.92 albertel 233: if ($advanced_role) {
1.49 albertel 234: my $prettyname=$not_eps;
235: $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|;
1.58 sakharuk 236: $prettyname=~s|$Apache::lonnet::perlvar{'lonDocRoot'}/|/|;
1.72 albertel 237: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Converting to EPS '.$prettyname);
238: }
1.42 albertel 239: $done_conversion{$not_eps}=1;
1.73 foxr 240: # print "Converting $not_eps -> $eps_f"; # Debugging
1.72 albertel 241: system("convert $not_eps $eps_f");
1.98 albertel 242: # check is eps exist in prtspool
243: if (not -e $eps_f) {
244: # converting an animated gif creates either:
245: # anim.gif.eps.0
246: # or
247: # anim.gif-0.eps
1.20 sakharuk 248: for (my $i=0;$i<10000;$i++) {
249: if (-e $eps_f.'.'.$i) {
1.98 albertel 250: rename($eps_f.'.'.$i, $eps_f);
1.20 sakharuk 251: last;
252: }
1.98 albertel 253: my $anim_eps = $eps_f;
254: $anim_eps =~ s/(\.[^.]*)\.eps$/$1-$i\.eps/i;
255: if (-e $anim_eps) {
256: rename($anim_eps, $eps_f);
257: last;
258: }
259: }
260: }
261: # imagemagick 6.2.0-6.2.7 fails to properly handle
262: # convert anim.gif anim.gif.eps
263: # it creates anim.eps instead.
264: if (not -e $eps_f) {
265: my $eps_f2 = $eps_f;
266: $eps_f2 =~ s/\.[^.]*\.eps$/\.eps/i;
267: if(-e $eps_f2) {
268: rename($eps_f2,$eps_f);
1.20 sakharuk 269: }
1.98 albertel 270: }
271:
1.14 sakharuk 272: }
273: }
1.92 albertel 274: if ($advanced_role) {
1.74 foxr 275: &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state);
276: }
1.52 albertel 277: unlink($figfile);
1.14 sakharuk 278: }
1.43 sakharuk 279: #print "$texfile\n"; #name of the tex file for debugging only
280: my @texfile=($texfile);
281: if ($number_of_files>1) {
1.49 albertel 282: @texfile=();
283: for (my $i=1;$i<=$number_of_files;$i++) {
1.43 sakharuk 284: my $new_texfile=$texfile;
1.86 foxr 285: $new_texfile=~s/\.tex//;
286: $new_texfile = sprintf("%s_%03d.tex", $new_texfile,$i);
1.43 sakharuk 287: push @texfile,$new_texfile;
288: }
289: }
1.49 albertel 290:
1.44 sakharuk 291: my $ind=-1;
1.49 albertel 292: my %prog_state;
1.92 albertel 293: if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status','Class Print Status',$number_of_files,'inline','80'); }
1.61 albertel 294: print "<br />";
1.88 foxr 295: my $num_files = @texfile;
1.43 sakharuk 296: foreach $texfile (@texfile) {
1.49 albertel 297: my $status_statement='';
298: my $link_text='download PDF';
299: $ind++;
300: my @stud_info=split(/_END_/,$names_pack[$ind]);
301: my @tempo_array=split(/:/,$stud_info[0]);
302: my $name;
1.88 foxr 303: my $name_range='';
1.49 albertel 304: if ($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 = $tempo_array[0];
310: }
311: if (($name ne "") && ($name ne '@') ) { # Could be printing codes...
312: $link_text='<b>'.$name.'</b>';
313: $status_statement.=$name;
1.49 albertel 314: }
315: if ($#stud_info>0) {
316: @tempo_array=split(/:/,$stud_info[-1]);
1.48 albertel 317: if ($tempo_array[3]) {
318: $name=$tempo_array[3];
1.89 foxr 319: my ($lastname) = split(/,/, $name,2);
320: $name_range .= "-".$lastname;
1.48 albertel 321: } else {
322: $name=$tempo_array[0].'@'.$tempo_array[1];
1.88 foxr 323: $name_range .= '-'.$tempo_array[0];
324: }
325: if (($name ne "") && ($name ne '@')) {
326: $link_text.=' - <b>'.$name.'</b>';
327: $status_statement.=' - '.$name;
328:
1.48 albertel 329: }
1.88 foxr 330: }
331: if(($num_files > 1) && ($link_text eq 'download PDF')) { # Printing codes
332: $link_text = '<b>'.basename($texfile,'.tex').'.pdf</b>';
333: $status_statement .= basename($texfile);
334: }
335: $name_range =~ s/'//g; # O'Neil -> ONeil e.g.
336: print "<br/>";
1.92 albertel 337: if ($advanced_role) { &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Creating PDF for '.$status_statement); }
1.88 foxr 338: # This little piece of dirt puts username ranges into the original tex
339: # Tex filename from which they'll propagate into the other filenames as well.
340: #
1.29 sakharuk 341: if (-e $texfile) {
1.88 foxr 342: if (($name_range ne '') && ($num_files > 1)) {
343: my $newtexfile = $texfile;
344: $newtexfile =~ s/\.tex/$name_range\.tex/;
345: rename($texfile, $newtexfile);
346: $texfile = $newtexfile;
347: }
1.29 sakharuk 348: $texfile =~ m/^(.*)\/([^\/]+)$/;
349: my $name_file = $2;
350: my $path_file = $1.'/';
351: chdir $path_file;
1.88 foxr 352: my $dvi_file= $name_file; $dvi_file =~ s/\.tex/$name_range\.dvi/;
1.59 albertel 353: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
354: "for $status_statement now LaTeXing file",
355: \%prog_state,$dvi_file);
1.40 sakharuk 356: if ($tableofcontents eq 'yes') {
1.63 sakharuk 357: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
1.95 foxr 358: "for $status_statement First LaTeX of file for table of contents",
359: \%prog_state,$dvi_file);
360: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
361: "for $status_statement Second LaTeX of file for table of contents",
1.63 sakharuk 362: \%prog_state,$dvi_file);
1.40 sakharuk 363: } #to create table of contents
1.33 sakharuk 364: my $idxname=$name_file;
365: $idxname=~s/\.tex$/\.idx/;
1.40 sakharuk 366: if ($tableofindex eq 'yes') {
1.63 sakharuk 367: &busy_wait_command("makeindex $idxname",
368: "making index file",
369: \%prog_state,$idxname);
370: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
371: "for $status_statement now LaTeXing file for index section",
372: \%prog_state,$dvi_file);
1.33 sakharuk 373: } #to create index
1.29 sakharuk 374: #Do we have a latex error in the log file?
1.67 sakharuk 375: my $logfilename = $texfile; $logfilename =~ s/\.tex$/\.log/;
1.69 matthew 376: my $temporary_file=IO::File->new($logfilename) || die "Couldn't open log file $logfilename for reading: $!\n";
1.29 sakharuk 377: my @content_of_file = <$temporary_file>;
378: close $temporary_file;
1.30 sakharuk 379: my $body_log_file = join(' ',@content_of_file);
380: $logfilename =~ s/\.log$/\.html/;
381: $temporary_file = IO::File->new('>'.$logfilename);
382: print $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n";
1.29 sakharuk 383: if ($body_log_file=~m/!\s+Emergency stop/) {
384: my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
385: my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
1.81 foxr 386: my $badresource;
1.83 foxr 387: my $badtext;
1.29 sakharuk 388: if ($whereitbegins!=-1 and $whereitends!=-1) {
1.83 foxr 389: $badtext = substr($body_log_file,$whereitbegins+26, $whereitends-$whereitbegins-26);
1.81 foxr 390: $whereitbegins = rindex $badtext,'located in';
391: if ($whereitbegins != -1) {
392:
393: $badresource = substr($badtext, $whereitbegins+27,
394: length($badtext) - $whereitbegins - 48);
1.84 albertel 395: # print "<br />failing resourcename: $badresource<br />";
1.81 foxr 396: }
1.29 sakharuk 397: }
1.83 foxr 398:
1.75 albertel 399: if ($advanced_role) {
1.83 foxr 400: #LaTeX failed to parse tex file
401: print "<h2>LaTeX could not successfully parse your tex file.</h2>";
402: print "It probably has errors in it.<br />";
403: print "With very high probability this error occured in ".$badtext."<br /><br />";
1.84 albertel 404: print "Here are the error messages in the LaTeX log file<br /><pre>";
1.90 foxr 405:
1.83 foxr 406: my $sygnal = 0;
407: for (my $i=0;$i<=$#content_of_file;$i++) {
408: if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {
409: $sygnal = 1;
410: }
411: if ($content_of_file[$i]=~m/Here is how much of/) {
412: $sygnal = 0;
413: }
414: if ($sygnal) {
415: print "$content_of_file[$i]";
416: }
417: }
418: print "</pre>\n";
1.84 albertel 419: # print "<br /> Advanced role <br />";
1.35 sakharuk 420: print "<b><big>The link to ";
421: $logfilename=~s/\/home\/httpd//;
422: print "<a href=\"$logfilename\">Your log file </a></big></b>";
423: print "\n";
424: #link tooriginal LaTeX file (included according Michael Hamlin desire)
1.69 matthew 425: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
1.35 sakharuk 426: my @tex_content_of_file = <$tex_temporary_file>;
427: close $tex_temporary_file;
428: my $body_tex_file = join(' ',@tex_content_of_file);
429: $texfile =~ s/\.tex$/aaaaa\.html/;
430: $tex_temporary_file = IO::File->new('>'.$texfile);
431: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
432: print "<br /><br />";
433: print "<b><big>The link to ";
434: $texfile=~s/\/home\/httpd//;
435: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
436: print "\n";
1.90 foxr 437: my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", "Help on printing");
438: print ("$help_text");
439:
1.77 foxr 440: } else { # Student role...
441: # at this point:
442: # $body_log_file - contains the log file.
443: # $name_file - is the name of the LaTeX file.
444: # $identifier - is the unique LaTeX identifier.l
445:
1.84 albertel 446: print "<br />There are errors in $badtext";
447: print "<br />These errors prevent this resource from printing correctly";
1.77 foxr 448: my $tex_handle = IO::File->new($name_file);
449: my @tex_contents = <$tex_handle>;
1.81 foxr 450: &send_error_mail($identifier, $badresource, $body_log_file, \@tex_contents);
1.90 foxr 451: print "<br />A message has been sent to the instructor describing this failure<br />";
452: my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", "Help on printing");
453: print ("$help_text");
454:
1.36 sakharuk 455: }
1.35 sakharuk 456:
1.29 sakharuk 457: } elsif ($body_log_file=~m/<inserted text>/) {
458: my $whereitbegins = index $body_log_file,'<inserted text>';
1.59 albertel 459: print "You are running LaTeX in <b>batch mode</b>.";
1.30 sakharuk 460: while ($whereitbegins != -1) {
461: my $tempobegin=$whereitbegins;
462: $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins;
463: my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$whereitbegins;
1.34 sakharuk 464: print "<br />It has found an error in".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)." <br /> and corrected it.\n";
1.30 sakharuk 465: print "Usually this correction is valid but you probably need to check the indicated resource one more time and implement neccessary corrections by yourself.\n";
466: $whereitbegins = index $body_log_file,'<inserted text>',$tempobegin+10;
467: }
1.29 sakharuk 468: $name_file =~ s/\.tex/\.dvi/;
469: my $new_name_file = $name_file;
470: $new_name_file =~ s/\.dvi/\.ps/;
1.67 sakharuk 471: my $papera=$paper;
1.62 sakharuk 472: if ($papera eq 'letter') {$papera='';}
473: if ($papera ne '') {$papera='-t'.$papera;}
474: my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file";
1.59 albertel 475: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
476: "for $status_statement now Converting to PS",
477: \%prog_state,$new_name_file);
1.29 sakharuk 478: if (-e $new_name_file) {
1.99 foxr 479: &repaginate_postscript($new_name_file);
1.29 sakharuk 480: print "<h1>PDF output file (see link below)</h1>\n";
481: $new_name_file =~ m/^(.*)\./;
1.59 albertel 482: my $ps_file = my $tempo_file = $1.'temporar.ps';
483: my $pdf_file = $1.'.pdf';
1.29 sakharuk 484: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
1.82 albertel 485: my $papera=$paper;
486: if ($papera eq 'letter') {$papera='';}
487: if ($papera ne '') {$papera='-p'.$papera;}
488: $comma = "psnup $papera -2 -s1.0 $new_name_file";
1.59 albertel 489: &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
490: "for $status_statement now Modifying PS layout",
491: \%prog_state,$tempo_file);
1.29 sakharuk 492: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
1.67 sakharuk 493: my $papera=$paper;
494: if ($papera eq 'letter') {$papera='';}
1.62 sakharuk 495: if ($papera ne '') {$papera='-p'.$papera;}
496: $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"';
1.63 sakharuk 497: &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null",
498: "for $status_statement now Modifying PS layout",
499: \%prog_state,$tempo_file);
500:
1.29 sakharuk 501: } else {
1.59 albertel 502: $ps_file=$new_name_file;
1.29 sakharuk 503: }
1.59 albertel 504: &busy_wait_command("ps2pdf $ps_file $pdf_file 1>/dev/null 2>/dev/null",
505: "for $status_statement now Converting PS to PDF",
506: \%prog_state, $pdf_file);
507:
1.29 sakharuk 508: my $texlog = $texfile;
509: my $texaux = $texfile;
510: my $texdvi = $texfile;
511: my $texps = $texfile;
512: $texlog =~ s/\.tex/\.log/;
513: $texaux =~ s/\.tex/\.aux/;
514: $texdvi =~ s/\.tex/\.dvi/;
515: $texps =~ s/\.tex/\.ps/;
1.30 sakharuk 516: my @garb = ($texaux,$texdvi,$texps);
1.29 sakharuk 517: # unlink @garb;
518: unlink $duefile;
1.59 albertel 519: print "<a href=\"/prtspool/$pdf_file\">Your PDF document</a>";
1.75 albertel 520: }
521: if ($advanced_role) {
522: print "<br /><br />";
523: print "<b><big>The link to ";
524: $logfilename=~s/\/home\/httpd//;
525: print "<a href=\"$logfilename\">Your log file </a></big></b>";
526: print "\n";
527: #link tooriginal LaTeX file (included according Michael Hamlin desire)
528: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
529: my @tex_content_of_file = <$tex_temporary_file>;
530: close $tex_temporary_file;
531: my $body_tex_file = join(' ',@tex_content_of_file);
532: $texfile =~ s/\.tex$/aaaaa\.html/;
533: $tex_temporary_file = IO::File->new('>'.$texfile);
534: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
535: print "<br /><br />";
536: print "<b><big>The link to ";
537: $texfile=~s/\/home\/httpd//;
538: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
539: print "\n";
1.29 sakharuk 540: }
541: } else {
542: #LaTeX successfully parsed tex file
543: $name_file =~ s/\.tex/\.dvi/;
544: my $new_name_file = $name_file;
545: $new_name_file =~ s/\.dvi/\.ps/;
1.67 sakharuk 546: my $papera=$paper;
1.62 sakharuk 547: if ($papera eq 'letter') {$papera='';}
548: if ($papera ne '') {$papera='-t'.$papera;}
549: my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file";
1.59 albertel 550: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
551: "for $status_statement now Converting to PS",
552: \%prog_state,$new_name_file);
1.29 sakharuk 553: if (-e $new_name_file) {
1.99 foxr 554: &repaginate_postscript($new_name_file);
1.61 albertel 555: print "<br />";
1.29 sakharuk 556: $new_name_file =~ m/^(.*)\./;
1.59 albertel 557: my $ps_file = my $tempo_file = $1.'temporar.ps';
558: my $pdf_file = $1.'.pdf';
1.82 albertel 559: $papera=~s/t/p/;
1.29 sakharuk 560: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
1.82 albertel 561: $comma = "psnup $papera -2 -s1.0 $new_name_file";
1.59 albertel 562: &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
563: "for $status_statement now Modifying PS layout",
564: \%prog_state,$tempo_file);
1.29 sakharuk 565: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
1.65 sakharuk 566: $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"';
1.59 albertel 567: &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null",
568: "for $status_statement now Modifying PS layout",
569: \%prog_state,$tempo_file);
1.29 sakharuk 570: } else {
1.59 albertel 571: $ps_file=$new_name_file;
572: }
1.67 sakharuk 573: my $addtoPSfile={'legal'=>'<< /PageSize [612 1008] >> setpagedevice',
574: 'tabloid'=>'<< /PageSize [792 1224] >> setpagedevice',
575: 'executive'=>,'<< /PageSize [540 720] >> setpagedevice',
576: 'a2'=>'<< /PageSize [1195.02 1690.09] >> setpagedevice',
577: 'a3'=>'<< /PageSize [842 1195.02] >> setpagedevice',
578: 'a4'=>'<< /PageSize [595.2 842] >> setpagedevice',
579: 'a5'=>'<< /PageSize [421.1 595.2] >> setpagedevice',
580: 'a6'=>'<< /PageSize [298.75 421.1] >> setpagedevice',
581: };
582: if ($paper ne 'letter') {
1.69 matthew 583: open(FFH,'<',$ps_file) || die "Couldn't open ps file $ps_file for reading: $!\n";
1.63 sakharuk 584: my $new_ps_file='new'.$ps_file;
1.69 matthew 585: open(FFHS,'>',$new_ps_file) || die "Couldn't open new ps file $new_ps_file for reading: $!\n";
1.67 sakharuk 586: print FFHS $addtoPSfile->{$paper}."\n";
1.63 sakharuk 587: while (<FFH>) {
588: print FFHS $_;
589: }
1.62 sakharuk 590: close(FFH);
1.63 sakharuk 591: close(FFHS);
592: $ps_file=$new_ps_file;
1.62 sakharuk 593: }
1.59 albertel 594: &busy_wait_command("ps2pdf $ps_file $pdf_file 1>/dev/null 2>/dev/null",
595: "for $status_statement now Converting PS to PDF",
596: \%prog_state,$pdf_file);
597:
1.29 sakharuk 598: my $texlog = $texfile;
599: my $texaux = $texfile;
600: my $texdvi = $texfile;
601: my $texps = $texfile;
602: $texlog =~ s/\.tex/\.log/;
603: $texaux =~ s/\.tex/\.aux/;
604: $texdvi =~ s/\.tex/\.dvi/;
605: $texps =~ s/\.tex/\.ps/;
606: my @garb = ($texlog,$texaux,$texdvi,$texps);
1.22 sakharuk 607: # unlink @garb;
1.29 sakharuk 608: unlink $duefile;
1.68 sakharuk 609: print "<a href=\"/prtspool/$pdf_file\">$link_text - click here to download pdf</a>";
1.29 sakharuk 610: print "\n";
611: }
1.63 sakharuk 612: }
1.29 sakharuk 613: } else {
614: print "LaTeX file $texfile was not created successfully";
1.14 sakharuk 615: }
1.43 sakharuk 616: }
1.45 sakharuk 617: print "<br />";
1.44 sakharuk 618: if ($number_of_files>1) {
1.45 sakharuk 619: my $zipfile=$texfile[0];
620: $zipfile=~s/\.tex/\.zip/;
621: my $statement="zip $zipfile";
1.44 sakharuk 622: foreach my $file (@texfile) {
1.45 sakharuk 623: $file=~s/\.tex/.\pdf/;
624: $statement.=' '.$file;
1.44 sakharuk 625: }
1.49 albertel 626: print("<pre>Zip Output:\n");
627: system($statement);
628: print("</pre>");
1.45 sakharuk 629: $zipfile=~s/\/home\/httpd//;
1.49 albertel 630: print "<br /> A <a href=\"$zipfile\">ZIP file</a> of all the PDFs.";
1.44 sakharuk 631: }
1.92 albertel 632: if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
1.97 albertel 633: print(&Apache::loncommon::end_page());
1.59 albertel 634: my $done;
635: sub REAPER {
636: $done=1;
637: }
638:
639: sub busy_wait_command {
640: my ($command,$message,$progress_win,$output_file)=@_;
641:
642: $SIG{CHLD} = \&REAPER;
643: $done=0;
1.101 ! albertel 644: print("<p> Doing : <tt>$command</tt>");
1.59 albertel 645: my $pid=open(CMD,"$command |");
1.92 albertel 646: if ($advanced_role) {
1.60 albertel 647: &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);
648: }
1.59 albertel 649: while(!$done) {
650: sleep 1;
651: my $extra_msg;
652: if ($output_file) {
653: my $size=(stat($output_file))[7];
654: $extra_msg=", $size bytes generated";
655: }
1.92 albertel 656: if ($advanced_role) {
1.60 albertel 657: &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,
658: $message.$extra_msg);
659: }
1.59 albertel 660: }
661: $SIG{CHLD}='IGNORE';
662: close(CMD);
663: }
1.101 ! albertel 664: print("<p> End</p>");
1.1 sakharuk 665:
1.99 foxr 666: # Repagninate a postscript file.
667: # What we need to do:
668: # - Count the number of pages in each student.
669: # - Add pages between each student so that each student's output is
670: # the maximum number of pages.
671: #
672: sub repaginate_postscript {
1.100 foxr 673:
674: # We will try to do this in 2 passes through the postscript since
675: # the postscript is potentially large, to do 2 passes, the first pass
676: # must be able to calculate the total number of document pages so that
677: # at the beginning of the second pass we already know how to replace
678: # %%Pages:
679:
680: # Figure out
681: # 1. Number of pages in the document
682: # 2. Maximum number of pages in a student
683: # 3. Number of pages in each student.
1.99 foxr 684:
685: my ($postscript_filename) = @_;
686: open(PSFILE, "<$postscript_filename");
1.100 foxr 687: my $line;
688: my $total_pages; # Total pages in document.
689: my $seen_pages = 0; # There are several %%Pages only the first is useful
690: my $student_number = 0; # Index of student we're working on.
691: my @pages_in_student; # For each student his/her initial page count.
692: my $max_pages = 0; # Pages in 'longest' student.
693: while ($line = <PSFILE>) {
694: my $page_number = 0;
695:
696: # Check for total pages (%%Pages:)
697:
1.101 ! albertel 698: if (($line =~ /^%%Pages:/) && (!$seen_pages)) {
1.100 foxr 699: my @pageinfo = split(/ /,$line);
700: $total_pages = $pageinfo[1];
701: $seen_pages = 1;
702: }
703: # Check for %%Page: n m $page_number will be the
704: # biggest of these until we see an endofstudent.
705: # Note that minipages generate spurious %Page: 1 1's so
706: # we only are looking for the largest n (n is page number at the
707: # bottom of the page, m the page number within the document.
708: #
1.101 ! albertel 709: if ($line =~ /^%%Page:/) {
1.100 foxr 710: my @pageinfo = split(/ /, $line);
711: if ($page_number < $pageinfo[1]) {
712: $page_number = $pageinfo[1];
713: }
714: }
715: # ENDOFSTUDENTSTAMP - save the page_number, reset and, if necessary
716: # udpate max_pages.
717: #
1.101 ! albertel 718: if ($line =~ /ENDOFSTUDENTSTAMP/) {
1.100 foxr 719: $pages_in_student[$student_number] = $page_number;
720: $student_number++;
721:
722: if ($page_number > $max_pages) {
723: $max_pages = $page_number;
724: }
725: $page_number = 0;
726:
727: }
728:
729:
730: }
1.99 foxr 731: close(PSFILE);
1.100 foxr 732:
733: # Figure out how many total pages we need to add and adjust the
734: # $total_pages accordingly:
735: #
736: my $add_pages = 0;
737: for (my $i =0; $i < $student_number; $i++) {
738: $add_pages += ($max_pages - $pages_in_student[$i]);
739: }
740: # If we don't need to add any pages, we're done!
741: # You might think that we don't need to do anything if
742: # there are no pages to add, however we still need to at least strip out
743: # the ENDOFSTUDENTSTAMP stamps...as they are not postscript comments!!
1.1 sakharuk 744:
1.100 foxr 745:
746: # Now pass 2; we're going to write the new. ps file:
747: # - Modify its first %%Pages: line so that it has the new correct number of
748: # pages
749: # - For each student, insert as many blank pages as needed (and
750: # associated structured comments) to expand a student out to
751: # max_pages pages.
752: # - Remove the ENDOFSTUDENTSTAMP lines.
753: #
1.99 foxr 754:
1.100 foxr 755: $total_pages += $add_pages;
756: $student_number = 0;
757:
1.101 ! albertel 758: open(PSFILE, "<$postscript_filename");
1.100 foxr 759: open(PSOFILE,">$postscript_filename"."repaginating"); # unique if original fname is.
760: $seen_pages = 0; # Reset seen %%Pages flag...
761: while ($line = <PSFILE>) {
1.101 ! albertel 762: if (($line =~ /^%%Pages:/) && (!$seen_pages)) {
1.100 foxr 763: $line = "%%Pages: $total_pages\n";
764: $seen_pages = 1;
765: }
1.101 ! albertel 766: if ($line =~ /ENDOFSTUDENTSTAMP/) {
1.100 foxr 767: $add_pages = ($max_pages - $pages_in_student[$student_number]);
768: $line = "\n";
769: my $last_student_page = $pages_in_student[$student_number];
770: my $last_total_page = $student_number*$max_pages + $last_student_page;
771: while ($add_pages) {
772: $line .= "%Page: $last_student_page $last_total_page\n";
773: my $bop = $last_total_page-1;
774: $line .= "TeXDict begin $last_student_page $bop bop eop end\n";
775: $last_student_page++;
776: $last_total_page++;
777: $add_pages--;
778: }
779: $student_number++;
780: }
1.101 ! albertel 781: print PSOFILE ($line);
1.100 foxr 782: }
1.101 ! albertel 783: close(PSOFILE);
! 784: close(PSFILE);
1.100 foxr 785:
786: rename($postscript_filename."repaginating", $postscript_filename);
787:
1.99 foxr 788: }
1.4 sakharuk 789:
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