Annotation of loncom/interface/printout.pl, revision 1.104
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'}/|/|;
1.104 ! foxr 237: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
! 238: 'Converting to EPS '.$prettyname);
1.72 albertel 239: }
1.42 albertel 240: $done_conversion{$not_eps}=1;
1.73 foxr 241: # print "Converting $not_eps -> $eps_f"; # Debugging
1.72 albertel 242: system("convert $not_eps $eps_f");
1.98 albertel 243: # check is eps exist in prtspool
244: if (not -e $eps_f) {
245: # converting an animated gif creates either:
246: # anim.gif.eps.0
247: # or
248: # anim.gif-0.eps
1.20 sakharuk 249: for (my $i=0;$i<10000;$i++) {
250: if (-e $eps_f.'.'.$i) {
1.98 albertel 251: rename($eps_f.'.'.$i, $eps_f);
1.20 sakharuk 252: last;
253: }
1.98 albertel 254: my $anim_eps = $eps_f;
255: $anim_eps =~ s/(\.[^.]*)\.eps$/$1-$i\.eps/i;
256: if (-e $anim_eps) {
257: rename($anim_eps, $eps_f);
258: last;
259: }
260: }
261: }
262: # imagemagick 6.2.0-6.2.7 fails to properly handle
263: # convert anim.gif anim.gif.eps
264: # it creates anim.eps instead.
265: if (not -e $eps_f) {
266: my $eps_f2 = $eps_f;
267: $eps_f2 =~ s/\.[^.]*\.eps$/\.eps/i;
268: if(-e $eps_f2) {
269: rename($eps_f2,$eps_f);
1.20 sakharuk 270: }
1.98 albertel 271: }
272:
1.14 sakharuk 273: }
274: }
1.92 albertel 275: if ($advanced_role) {
1.74 foxr 276: &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state);
277: }
1.52 albertel 278: unlink($figfile);
1.14 sakharuk 279: }
1.43 sakharuk 280: #print "$texfile\n"; #name of the tex file for debugging only
281: my @texfile=($texfile);
282: if ($number_of_files>1) {
1.49 albertel 283: @texfile=();
284: for (my $i=1;$i<=$number_of_files;$i++) {
1.43 sakharuk 285: my $new_texfile=$texfile;
1.86 foxr 286: $new_texfile=~s/\.tex//;
287: $new_texfile = sprintf("%s_%03d.tex", $new_texfile,$i);
1.43 sakharuk 288: push @texfile,$new_texfile;
289: }
290: }
1.49 albertel 291:
1.44 sakharuk 292: my $ind=-1;
1.49 albertel 293: my %prog_state;
1.92 albertel 294: if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status','Class Print Status',$number_of_files,'inline','80'); }
1.61 albertel 295: print "<br />";
1.88 foxr 296: my $num_files = @texfile;
1.43 sakharuk 297: foreach $texfile (@texfile) {
1.49 albertel 298: my $status_statement='';
299: my $link_text='download PDF';
300: $ind++;
301: my @stud_info=split(/_END_/,$names_pack[$ind]);
302: my @tempo_array=split(/:/,$stud_info[0]);
303: my $name;
1.88 foxr 304: my $name_range='';
1.49 albertel 305: if ($tempo_array[3]) {
306: $name=$tempo_array[3];
1.89 foxr 307: ($name_range) = split(/,/,$name, 2);
1.49 albertel 308: } else {
309: $name=$tempo_array[0].'@'.$tempo_array[1];
1.88 foxr 310: $name_range = $tempo_array[0];
311: }
312: if (($name ne "") && ($name ne '@') ) { # Could be printing codes...
313: $link_text='<b>'.$name.'</b>';
314: $status_statement.=$name;
1.49 albertel 315: }
316: if ($#stud_info>0) {
317: @tempo_array=split(/:/,$stud_info[-1]);
1.48 albertel 318: if ($tempo_array[3]) {
319: $name=$tempo_array[3];
1.89 foxr 320: my ($lastname) = split(/,/, $name,2);
321: $name_range .= "-".$lastname;
1.48 albertel 322: } else {
323: $name=$tempo_array[0].'@'.$tempo_array[1];
1.88 foxr 324: $name_range .= '-'.$tempo_array[0];
325: }
326: if (($name ne "") && ($name ne '@')) {
327: $link_text.=' - <b>'.$name.'</b>';
328: $status_statement.=' - '.$name;
329:
1.48 albertel 330: }
1.88 foxr 331: }
332: if(($num_files > 1) && ($link_text eq 'download PDF')) { # Printing codes
333: $link_text = '<b>'.basename($texfile,'.tex').'.pdf</b>';
334: $status_statement .= basename($texfile);
335: }
336: $name_range =~ s/'//g; # O'Neil -> ONeil e.g.
337: print "<br/>";
1.92 albertel 338: if ($advanced_role) { &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Creating PDF for '.$status_statement); }
1.88 foxr 339: # This little piece of dirt puts username ranges into the original tex
340: # Tex filename from which they'll propagate into the other filenames as well.
341: #
1.29 sakharuk 342: if (-e $texfile) {
1.88 foxr 343: if (($name_range ne '') && ($num_files > 1)) {
344: my $newtexfile = $texfile;
345: $newtexfile =~ s/\.tex/$name_range\.tex/;
346: rename($texfile, $newtexfile);
347: $texfile = $newtexfile;
348: }
1.29 sakharuk 349: $texfile =~ m/^(.*)\/([^\/]+)$/;
350: my $name_file = $2;
351: my $path_file = $1.'/';
352: chdir $path_file;
1.88 foxr 353: my $dvi_file= $name_file; $dvi_file =~ s/\.tex/$name_range\.dvi/;
1.59 albertel 354: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
355: "for $status_statement now LaTeXing file",
356: \%prog_state,$dvi_file);
1.40 sakharuk 357: if ($tableofcontents eq 'yes') {
1.63 sakharuk 358: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
1.95 foxr 359: "for $status_statement First LaTeX of file for table of contents",
360: \%prog_state,$dvi_file);
361: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
362: "for $status_statement Second LaTeX of file for table of contents",
1.63 sakharuk 363: \%prog_state,$dvi_file);
1.40 sakharuk 364: } #to create table of contents
1.33 sakharuk 365: my $idxname=$name_file;
366: $idxname=~s/\.tex$/\.idx/;
1.40 sakharuk 367: if ($tableofindex eq 'yes') {
1.63 sakharuk 368: &busy_wait_command("makeindex $idxname",
369: "making index file",
370: \%prog_state,$idxname);
371: &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
372: "for $status_statement now LaTeXing file for index section",
373: \%prog_state,$dvi_file);
1.33 sakharuk 374: } #to create index
1.29 sakharuk 375: #Do we have a latex error in the log file?
1.67 sakharuk 376: my $logfilename = $texfile; $logfilename =~ s/\.tex$/\.log/;
1.69 matthew 377: my $temporary_file=IO::File->new($logfilename) || die "Couldn't open log file $logfilename for reading: $!\n";
1.29 sakharuk 378: my @content_of_file = <$temporary_file>;
379: close $temporary_file;
1.30 sakharuk 380: my $body_log_file = join(' ',@content_of_file);
381: $logfilename =~ s/\.log$/\.html/;
382: $temporary_file = IO::File->new('>'.$logfilename);
383: print $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n";
1.29 sakharuk 384: if ($body_log_file=~m/!\s+Emergency stop/) {
385: my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
386: my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
1.81 foxr 387: my $badresource;
1.83 foxr 388: my $badtext;
1.29 sakharuk 389: if ($whereitbegins!=-1 and $whereitends!=-1) {
1.83 foxr 390: $badtext = substr($body_log_file,$whereitbegins+26, $whereitends-$whereitbegins-26);
1.81 foxr 391: $whereitbegins = rindex $badtext,'located in';
392: if ($whereitbegins != -1) {
393:
394: $badresource = substr($badtext, $whereitbegins+27,
395: length($badtext) - $whereitbegins - 48);
1.84 albertel 396: # print "<br />failing resourcename: $badresource<br />";
1.81 foxr 397: }
1.29 sakharuk 398: }
1.83 foxr 399:
1.75 albertel 400: if ($advanced_role) {
1.83 foxr 401: #LaTeX failed to parse tex file
402: print "<h2>LaTeX could not successfully parse your tex file.</h2>";
403: print "It probably has errors in it.<br />";
404: print "With very high probability this error occured in ".$badtext."<br /><br />";
1.84 albertel 405: print "Here are the error messages in the LaTeX log file<br /><pre>";
1.90 foxr 406:
1.83 foxr 407: my $sygnal = 0;
408: for (my $i=0;$i<=$#content_of_file;$i++) {
409: if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {
410: $sygnal = 1;
411: }
412: if ($content_of_file[$i]=~m/Here is how much of/) {
413: $sygnal = 0;
414: }
415: if ($sygnal) {
416: print "$content_of_file[$i]";
417: }
418: }
419: print "</pre>\n";
1.84 albertel 420: # print "<br /> Advanced role <br />";
1.35 sakharuk 421: print "<b><big>The link to ";
422: $logfilename=~s/\/home\/httpd//;
423: print "<a href=\"$logfilename\">Your log file </a></big></b>";
424: print "\n";
425: #link tooriginal LaTeX file (included according Michael Hamlin desire)
1.69 matthew 426: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
1.35 sakharuk 427: my @tex_content_of_file = <$tex_temporary_file>;
428: close $tex_temporary_file;
429: my $body_tex_file = join(' ',@tex_content_of_file);
430: $texfile =~ s/\.tex$/aaaaa\.html/;
431: $tex_temporary_file = IO::File->new('>'.$texfile);
432: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
433: print "<br /><br />";
434: print "<b><big>The link to ";
435: $texfile=~s/\/home\/httpd//;
436: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
437: print "\n";
1.90 foxr 438: my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", "Help on printing");
439: print ("$help_text");
440:
1.77 foxr 441: } else { # Student role...
442: # at this point:
443: # $body_log_file - contains the log file.
444: # $name_file - is the name of the LaTeX file.
445: # $identifier - is the unique LaTeX identifier.l
446:
1.84 albertel 447: print "<br />There are errors in $badtext";
448: print "<br />These errors prevent this resource from printing correctly";
1.77 foxr 449: my $tex_handle = IO::File->new($name_file);
450: my @tex_contents = <$tex_handle>;
1.81 foxr 451: &send_error_mail($identifier, $badresource, $body_log_file, \@tex_contents);
1.90 foxr 452: print "<br />A message has been sent to the instructor describing this failure<br />";
453: my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", "Help on printing");
454: print ("$help_text");
455:
1.36 sakharuk 456: }
1.35 sakharuk 457:
1.29 sakharuk 458: } elsif ($body_log_file=~m/<inserted text>/) {
459: my $whereitbegins = index $body_log_file,'<inserted text>';
1.59 albertel 460: print "You are running LaTeX in <b>batch mode</b>.";
1.30 sakharuk 461: while ($whereitbegins != -1) {
462: my $tempobegin=$whereitbegins;
463: $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins;
464: my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$whereitbegins;
1.34 sakharuk 465: 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 466: 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";
467: $whereitbegins = index $body_log_file,'<inserted text>',$tempobegin+10;
468: }
1.29 sakharuk 469: $name_file =~ s/\.tex/\.dvi/;
470: my $new_name_file = $name_file;
471: $new_name_file =~ s/\.dvi/\.ps/;
1.67 sakharuk 472: my $papera=$paper;
1.62 sakharuk 473: if ($papera eq 'letter') {$papera='';}
474: if ($papera ne '') {$papera='-t'.$papera;}
475: my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file";
1.59 albertel 476: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
477: "for $status_statement now Converting to PS",
478: \%prog_state,$new_name_file);
1.29 sakharuk 479: if (-e $new_name_file) {
1.102 foxr 480: my $latex_file = $name_file;
481: $latex_file =~ s/\.dvi/\.tex/;
482: &repaginate($new_name_file, $latex_file, $numberofcolumns);
483: #
484: # Now have to re-latex, re dvips again to
485: # get the repaginated postscript.
486: #
487: &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
488: "for $status_statement first latex to repaginate",
489: \%prog_state, $name_file);
490: &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
491: "for $status_statement second latex to repaginate",
492: \%prog_state, $name_file);
493: &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
494: "for $status_statement third latex to repaginate",
495: \%prog_state, $name_file);
496: &busy_wait_command("$comma $name_file 1>dev/null 2>/dev/null",
497: "for $status_statement dvips to repaginate",
498: \%prog_state, $new_name_file);
499:
500: print "\n<h1>PDF output file (see link below)</h1>\n";
1.29 sakharuk 501: $new_name_file =~ m/^(.*)\./;
1.59 albertel 502: my $ps_file = my $tempo_file = $1.'temporar.ps';
503: my $pdf_file = $1.'.pdf';
1.29 sakharuk 504: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
1.82 albertel 505: my $papera=$paper;
506: if ($papera eq 'letter') {$papera='';}
507: if ($papera ne '') {$papera='-p'.$papera;}
508: $comma = "psnup $papera -2 -s1.0 $new_name_file";
1.59 albertel 509: &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
510: "for $status_statement now Modifying PS layout",
511: \%prog_state,$tempo_file);
1.29 sakharuk 512: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
1.67 sakharuk 513: my $papera=$paper;
514: if ($papera eq 'letter') {$papera='';}
1.62 sakharuk 515: if ($papera ne '') {$papera='-p'.$papera;}
516: $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"';
1.63 sakharuk 517: &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null",
518: "for $status_statement now Modifying PS layout",
519: \%prog_state,$tempo_file);
520:
1.29 sakharuk 521: } else {
1.59 albertel 522: $ps_file=$new_name_file;
1.29 sakharuk 523: }
1.59 albertel 524: &busy_wait_command("ps2pdf $ps_file $pdf_file 1>/dev/null 2>/dev/null",
525: "for $status_statement now Converting PS to PDF",
526: \%prog_state, $pdf_file);
527:
1.29 sakharuk 528: my $texlog = $texfile;
529: my $texaux = $texfile;
530: my $texdvi = $texfile;
531: my $texps = $texfile;
532: $texlog =~ s/\.tex/\.log/;
533: $texaux =~ s/\.tex/\.aux/;
534: $texdvi =~ s/\.tex/\.dvi/;
535: $texps =~ s/\.tex/\.ps/;
1.30 sakharuk 536: my @garb = ($texaux,$texdvi,$texps);
1.29 sakharuk 537: # unlink @garb;
538: unlink $duefile;
1.59 albertel 539: print "<a href=\"/prtspool/$pdf_file\">Your PDF document</a>";
1.75 albertel 540: }
541: if ($advanced_role) {
542: print "<br /><br />";
543: print "<b><big>The link to ";
544: $logfilename=~s/\/home\/httpd//;
545: print "<a href=\"$logfilename\">Your log file </a></big></b>";
546: print "\n";
547: #link tooriginal LaTeX file (included according Michael Hamlin desire)
548: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
549: my @tex_content_of_file = <$tex_temporary_file>;
550: close $tex_temporary_file;
551: my $body_tex_file = join(' ',@tex_content_of_file);
552: $texfile =~ s/\.tex$/aaaaa\.html/;
553: $tex_temporary_file = IO::File->new('>'.$texfile);
554: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
555: print "<br /><br />";
556: print "<b><big>The link to ";
557: $texfile=~s/\/home\/httpd//;
558: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
559: print "\n";
1.29 sakharuk 560: }
561: } else {
562: #LaTeX successfully parsed tex file
563: $name_file =~ s/\.tex/\.dvi/;
564: my $new_name_file = $name_file;
565: $new_name_file =~ s/\.dvi/\.ps/;
1.67 sakharuk 566: my $papera=$paper;
1.62 sakharuk 567: if ($papera eq 'letter') {$papera='';}
568: if ($papera ne '') {$papera='-t'.$papera;}
569: my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file";
1.59 albertel 570: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
571: "for $status_statement now Converting to PS",
572: \%prog_state,$new_name_file);
1.29 sakharuk 573: if (-e $new_name_file) {
1.102 foxr 574: my $latex_file = $name_file;
575: $latex_file =~ s/\.dvi/\.tex/;
576: &repaginate($new_name_file, $latex_file, $numberofcolumns);
577: &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
578: "for $status_statement first latex to repaginate",
579: \%prog_state, $name_file);
580: &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
581: "for $status_statement second latex to repaginate",
582: \%prog_state, $name_file);
583: &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
584: "for $status_statement third latex to repaginate",
585: \%prog_state, $name_file);
586: &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
587: "for $status_statement dvips to repaginate",
588: \%prog_state, $new_name_file);
1.61 albertel 589: print "<br />";
1.29 sakharuk 590: $new_name_file =~ m/^(.*)\./;
1.59 albertel 591: my $ps_file = my $tempo_file = $1.'temporar.ps';
592: my $pdf_file = $1.'.pdf';
1.82 albertel 593: $papera=~s/t/p/;
1.29 sakharuk 594: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
1.82 albertel 595: $comma = "psnup $papera -2 -s1.0 $new_name_file";
1.59 albertel 596: &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
597: "for $status_statement now Modifying PS layout",
598: \%prog_state,$tempo_file);
1.29 sakharuk 599: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
1.65 sakharuk 600: $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"';
1.59 albertel 601: &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null",
602: "for $status_statement now Modifying PS layout",
603: \%prog_state,$tempo_file);
1.29 sakharuk 604: } else {
1.59 albertel 605: $ps_file=$new_name_file;
606: }
1.67 sakharuk 607: my $addtoPSfile={'legal'=>'<< /PageSize [612 1008] >> setpagedevice',
608: 'tabloid'=>'<< /PageSize [792 1224] >> setpagedevice',
609: 'executive'=>,'<< /PageSize [540 720] >> setpagedevice',
610: 'a2'=>'<< /PageSize [1195.02 1690.09] >> setpagedevice',
611: 'a3'=>'<< /PageSize [842 1195.02] >> setpagedevice',
612: 'a4'=>'<< /PageSize [595.2 842] >> setpagedevice',
613: 'a5'=>'<< /PageSize [421.1 595.2] >> setpagedevice',
614: 'a6'=>'<< /PageSize [298.75 421.1] >> setpagedevice',
615: };
616: if ($paper ne 'letter') {
1.69 matthew 617: open(FFH,'<',$ps_file) || die "Couldn't open ps file $ps_file for reading: $!\n";
1.63 sakharuk 618: my $new_ps_file='new'.$ps_file;
1.69 matthew 619: open(FFHS,'>',$new_ps_file) || die "Couldn't open new ps file $new_ps_file for reading: $!\n";
1.67 sakharuk 620: print FFHS $addtoPSfile->{$paper}."\n";
1.63 sakharuk 621: while (<FFH>) {
622: print FFHS $_;
623: }
1.62 sakharuk 624: close(FFH);
1.63 sakharuk 625: close(FFHS);
626: $ps_file=$new_ps_file;
1.62 sakharuk 627: }
1.59 albertel 628: &busy_wait_command("ps2pdf $ps_file $pdf_file 1>/dev/null 2>/dev/null",
629: "for $status_statement now Converting PS to PDF",
630: \%prog_state,$pdf_file);
631:
1.29 sakharuk 632: my $texlog = $texfile;
633: my $texaux = $texfile;
634: my $texdvi = $texfile;
635: my $texps = $texfile;
636: $texlog =~ s/\.tex/\.log/;
637: $texaux =~ s/\.tex/\.aux/;
638: $texdvi =~ s/\.tex/\.dvi/;
639: $texps =~ s/\.tex/\.ps/;
640: my @garb = ($texlog,$texaux,$texdvi,$texps);
1.22 sakharuk 641: # unlink @garb;
1.29 sakharuk 642: unlink $duefile;
1.68 sakharuk 643: print "<a href=\"/prtspool/$pdf_file\">$link_text - click here to download pdf</a>";
1.29 sakharuk 644: print "\n";
645: }
1.63 sakharuk 646: }
1.29 sakharuk 647: } else {
648: print "LaTeX file $texfile was not created successfully";
1.14 sakharuk 649: }
1.43 sakharuk 650: }
1.45 sakharuk 651: print "<br />";
1.44 sakharuk 652: if ($number_of_files>1) {
1.45 sakharuk 653: my $zipfile=$texfile[0];
654: $zipfile=~s/\.tex/\.zip/;
655: my $statement="zip $zipfile";
1.44 sakharuk 656: foreach my $file (@texfile) {
1.45 sakharuk 657: $file=~s/\.tex/.\pdf/;
658: $statement.=' '.$file;
1.44 sakharuk 659: }
1.49 albertel 660: print("<pre>Zip Output:\n");
661: system($statement);
662: print("</pre>");
1.45 sakharuk 663: $zipfile=~s/\/home\/httpd//;
1.49 albertel 664: print "<br /> A <a href=\"$zipfile\">ZIP file</a> of all the PDFs.";
1.44 sakharuk 665: }
1.92 albertel 666: if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
1.97 albertel 667: print(&Apache::loncommon::end_page());
1.59 albertel 668: my $done;
1.102 foxr 669:
1.59 albertel 670: sub REAPER {
671: $done=1;
672: }
673:
674: sub busy_wait_command {
675: my ($command,$message,$progress_win,$output_file)=@_;
676:
677: $SIG{CHLD} = \&REAPER;
678: $done=0;
1.101 albertel 679: print("<p> Doing : <tt>$command</tt>");
1.59 albertel 680: my $pid=open(CMD,"$command |");
1.92 albertel 681: if ($advanced_role) {
1.60 albertel 682: &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);
683: }
1.59 albertel 684: while(!$done) {
685: sleep 1;
686: my $extra_msg;
687: if ($output_file) {
688: my $size=(stat($output_file))[7];
689: $extra_msg=", $size bytes generated";
690: }
1.92 albertel 691: if ($advanced_role) {
1.60 albertel 692: &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,
693: $message.$extra_msg);
694: }
1.59 albertel 695: }
696: $SIG{CHLD}='IGNORE';
697: close(CMD);
698: }
1.101 albertel 699: print("<p> End</p>");
1.1 sakharuk 700:
1.102 foxr 701: # Repagninate
1.99 foxr 702: # What we need to do:
703: # - Count the number of pages in each student.
1.102 foxr 704: # - Rewrite the latex file replacing the \specials that
705: # mark the end of student with an appropriate number of newlines.
706: # parameters:
707: # psfile - Postscript filename
708: # latexfile - LaTeX filename
709: # columns - number of columns.
710: sub repaginate {
1.100 foxr 711:
712: # We will try to do this in 2 passes through the postscript since
713: # the postscript is potentially large, to do 2 passes, the first pass
714: # must be able to calculate the total number of document pages so that
715: # at the beginning of the second pass we already know how to replace
716: # %%Pages:
717:
718: # Figure out
719: # 1. Number of pages in the document
720: # 2. Maximum number of pages in a student
721: # 3. Number of pages in each student.
1.99 foxr 722:
1.102 foxr 723: my ($postscript_filename, $latex_filename, $num_columns) = @_;
1.99 foxr 724: open(PSFILE, "<$postscript_filename");
1.100 foxr 725: my $line;
726: my $total_pages; # Total pages in document.
727: my $seen_pages = 0; # There are several %%Pages only the first is useful
728: my $student_number = 0; # Index of student we're working on.
729: my @pages_in_student; # For each student his/her initial page count.
730: my $max_pages = 0; # Pages in 'longest' student.
1.102 foxr 731: my $page_number = 0;
1.104 ! foxr 732: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
! 733: "Counting pages for student: ".$student_number+1);
! 734:
1.100 foxr 735: while ($line = <PSFILE>) {
736:
737: # Check for total pages (%%Pages:)
738:
1.101 albertel 739: if (($line =~ /^%%Pages:/) && (!$seen_pages)) {
1.100 foxr 740: my @pageinfo = split(/ /,$line);
741: $total_pages = $pageinfo[1];
742: $seen_pages = 1;
743: }
744: # Check for %%Page: n m $page_number will be the
745: # biggest of these until we see an endofstudent.
746: # Note that minipages generate spurious %Page: 1 1's so
747: # we only are looking for the largest n (n is page number at the
748: # bottom of the page, m the page number within the document.
749: #
1.102 foxr 750:
1.101 albertel 751: if ($line =~ /^%%Page:/) {
1.100 foxr 752: my @pageinfo = split(/ /, $line);
753: if ($page_number < $pageinfo[1]) {
754: $page_number = $pageinfo[1];
755: }
756: }
757: # ENDOFSTUDENTSTAMP - save the page_number, reset and, if necessary
758: # udpate max_pages.
759: #
1.101 albertel 760: if ($line =~ /ENDOFSTUDENTSTAMP/) {
1.100 foxr 761: $pages_in_student[$student_number] = $page_number;
762: $student_number++;
1.104 ! foxr 763: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
! 764: "Counting pages for student: ".$student_number+1);
! 765:
1.100 foxr 766: if ($page_number > $max_pages) {
767: $max_pages = $page_number;
768: }
769: $page_number = 0;
770:
771: }
772:
773:
774: }
1.99 foxr 775: close(PSFILE);
1.102 foxr 776:
777: # If 2 columns, max_pages must go to an even number of columns:
1.103 foxr 778:
779: &Apache::lonnet::logthis("Before 2 col adjust max-pages = $max_pages");
1.102 foxr 780:
781: if ($num_columns == 2) {
782: if ($max_pages % 2) {
783: $max_pages++;
784: }
785: }
1.103 foxr 786: &Apache::lonnet::logthis("after adjust: $max_pages");
1.100 foxr 787:
1.102 foxr 788: # Now rewrite the LaTex file, substituting our \special
789: # with an appropriate number of \newpage directives.
790:
791: my $outfilename = $latex_filename."temp";
792:
793: open(LATEXIN, "<$latex_filename");
794: open(LATEXOUT, ">$outfilename");
795:
796:
797: $student_number = 0; # first student...
1.104 ! foxr 798: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
! 799: "Repaginating student ".$student_number+1);
1.102 foxr 800:
801: while (my $line = <LATEXIN>) {
802: if ($line eq "\\special{ps:ENDOFSTUDENTSTAMP}\n") {
803: # only end of student stamp if next line is ENDOFSTUDENTSTAMP:
804:
805:
806: # End of student replace with 0 or more newpages.
807:
808: my $addlines = $max_pages - $pages_in_student[$student_number];
1.103 foxr 809: &Apache::lonnet::logthis("student: $pages_in_student[$student_number] add: $addlines");
1.102 foxr 810: while($addlines) {
1.103 foxr 811: print LATEXOUT '\pagebreak';
1.102 foxr 812: $addlines--;
1.100 foxr 813: }
1.102 foxr 814:
1.100 foxr 815: $student_number++;
1.104 ! foxr 816: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
! 817: "Repaginating student ".$student_number+1);
1.102 foxr 818:
819: } else {
820: print LATEXOUT $line;
1.100 foxr 821: }
822: }
823:
1.102 foxr 824: close(LATEXIN);
825: close(LATEXOUT);
826: rename($outfilename, $latex_filename);
1.100 foxr 827:
1.99 foxr 828: }
1.4 sakharuk 829:
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