Annotation of loncom/interface/printout.pl, revision 1.93

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: 
1.93    ! albertel   28: BEGIN {
        !            29:     eval "use Apache2::compat();";
        !            30: };
1.39      sakharuk   31: use lib '/home/httpd/lib/perl';
1.76      albertel   32: use LONCAPA::loncgi;
1.38      sakharuk   33: use File::Path;
1.88      foxr       34: use File::Basename;
1.6       sakharuk   35: use IO::File;
1.7       sakharuk   36: use Image::Magick;
1.47      sakharuk   37: use Apache::lonhtmlcommon;
1.80      albertel   38: use Apache::lonnet;
1.51      albertel   39: use Apache::loncommon;
                     40: use Apache::lonlocal;
1.77      foxr       41: use Apache::lonmsg;
                     42: use LONCAPA::Enrollment;
1.47      sakharuk   43: 
1.59      albertel   44: use strict;
1.77      foxr       45: 
1.81      foxr       46: 
1.77      foxr       47: #   Determine if a user is operating as a student for this course/domain.
                     48: #Parameters:
1.92      albertel   49: #    none
1.77      foxr       50: #Implicit:
                     51: #    $env{request.role} contains the role under which this user operated this
                     52: #                       this request.
                     53: sub is_student {
1.92      albertel   54:     return ($env{'request.role'}=~/^st\./);
1.77      foxr       55: }
                     56: 
                     57: #
                     58: #   Debugging:  Dump the environment for debugging.
                     59: #
                     60: sub dumpenv  {
1.84      albertel   61:     print "<br />-------------------<br />";
1.77      foxr       62:     foreach my $key (sort (keys %env)) {
1.84      albertel   63: 	print "<br />$key -> $env{$key}";
1.77      foxr       64:     }
1.84      albertel   65:     print "<br />-------------------<br />";
1.77      foxr       66: }
                     67: 
                     68: #
                     69: #   This sub sends a message to the appropriate person if there was an error
                     70: #   rendering the latex  At present, there's only one case to consider:
                     71: #   a student printing inside a course results in messages to the course coordinator.
                     72: #Parmaeters:
                     73: #    identifier -  The unique identifier of this cgi request.
1.81      foxr       74: #    badresource-  Filepath to most likely failing 
1.77      foxr       75: #    logfile    -  The contents of the log file (included in the message).
                     76: #    texfile    -  reference to an array containing the LaTeX input file
                     77: #                  (included in the message).
                     78: #Implicit inputs:
                     79: #   From the environment:
                     80: #       cgi.$identifier.user     - User doing the printing.
                     81: #       cgi.$identifier.domain   - Domain the user is logged in on with printing.
                     82: #       cgi.$identifier.courseid - Id of the course (if this is a course).
                     83: #       cgi.$identifier.coursedom- Domain in which course was constituted.
                     84: #       cgi.$identifier.resources - List of resource URL's for which the print
                     85: #                                  was attempted.
                     86: # 
                     87: sub send_error_mail {
1.81      foxr       88:     my ($identifier, $badresource, $logfile, $texfile) = @_;
1.77      foxr       89:     my $user     = $env{"cgi.$identifier.user"};
                     90:     my $domain   = $env{"cgi.$identifier.domain"};
                     91:     my $courseid = $env{"cgi.$identifier.courseid"};
                     92:     my $coursedom= $env{"cgi.$identifier.coursedom"};
                     93:     my $resources= $env{"cgi.$identifier.resources"};
                     94: 
1.81      foxr       95:     #  resource file->URL
                     96:     #
                     97:     my $badurl = &Apache::lonnet::declutter($badresource);
                     98: 
                     99:     # &dumpenv();
1.77      foxr      100: 
                    101: 
                    102: 
                    103:     #  Only continue if there is a user, domain, courseid, course domain
                    104:     #  and resources:
                    105: 
                    106:     if(defined($user)       && defined($domain) && defined($courseid) &&
                    107:        defined($coursedom)  && defined($resources) ){
                    108: 	   
                    109: 	#  Only mail if the conditions are ripe for it:
                    110: 	#  The user is a student in the course:
                    111: 	#
                    112: 	
1.92      albertel  113: 	if (&is_student()) {
1.77      foxr      114: 	    # build the subject and message body:
1.84      albertel  115: 	    # print "sending message to course coordinators.<br />";
1.81      foxr      116: 
                    117: 	    # Todo: Convert badurl into a url from file path:
                    118: 
                    119: 	    my $subject  = "Error [$badurl] Print failed for $user".'@'.$domain;
1.77      foxr      120: 	    my $message .= "Print failed to render LaTeX for $user".'@'."$domain\n";
                    121: 	    $message    .= "  User was attempting to print: \n";
1.91      albertel  122: 	    foreach my $resource (split(/:/,$resources)) {
                    123: 		$message    .= "       $resource\n";
                    124: 	    }
1.77      foxr      125: 	    $message    .= "--------------------LaTeX logfile:------------ \n";
                    126: 	    $message    .= $logfile;
                    127: 	    $message    .= "-----------------LaTeX source file: ------------\n";
                    128: 	    
                    129: 	    foreach my $line (@$texfile) {
                    130: 		$message .= "$line\n";
                    131: 	    }
1.81      foxr      132: 	    my (undef, %receivers) = &Apache::lonfeedback::decide_receiver(undef, 0,
                    133: 									  1,1,1);
1.84      albertel  134: 	    # print "<br /> sending...section:  $env{'request.course.sec'}";
1.81      foxr      135: 	    foreach my $dest (keys %receivers) {
1.84      albertel  136: 		# print "<br /> dest is $dest";
1.77      foxr      137: 		my @destinfo = split(/:/,$dest);
                    138: 		my $user = $destinfo[0];
                    139: 		my $dom  = $destinfo[1];
                    140: 
                    141: 		&Apache::lonmsg::user_normal_msg($user, $dom,
                    142: 						 $subject, $message);
                    143: 		
                    144: 		# No point in looking at the return status as there's no good
                    145: 		# error action I can think of right now (log maybe?).
                    146: 	    }
                    147: 	}
                    148:     }
                    149: }
                    150: 
1.49      albertel  151: $|=1;
1.39      sakharuk  152: if (! &LONCAPA::loncgi::check_cookie_and_load_env()) {
                    153:     print <<END;
                    154: Content-type: text/html
                    155: 
                    156: <html>
                    157: <head><title>Bad Cookie</title></head>
                    158: <body>
1.40      sakharuk  159: Your cookie information is incorrect.
1.39      sakharuk  160: </body>
                    161: </html>
                    162: END
                    163:     return;
                    164: }
1.51      albertel  165:  &Apache::lonlocal::get_language_handle();
                    166:  &Apache::loncommon::content_type(undef,'text/html');
                    167:  my $bodytag=&Apache::loncommon::bodytag('Creating PDF','','');
                    168:  print $bodytag;
1.39      sakharuk  169: 
1.40      sakharuk  170:   my $identifier = $ENV{'QUERY_STRING'};
1.76      albertel  171:   my $texfile = $env{'cgi.'.$identifier.'.file'};
                    172:   my $laystyle = $env{'cgi.'.$identifier.'.layout'};
                    173:   my $numberofcolumns = $env{'cgi.'.$identifier.'.numcol'};
                    174:   my $paper = $env{'cgi.'.$identifier.'.paper'};
                    175:   my $selectionmade = $env{'cgi.'.$identifier.'.selection'};
1.79      albertel  176:   my $tableofcontents = $env{'cgi.'.$identifier.'.tableofcontents'};
                    177:   my $tableofindex = $env{'cgi.'.$identifier.'.tableofindex'};
                    178:   my $advanced_role = $env{'cgi.'.$identifier.'.role'};
                    179:   my $number_of_files = $env{'cgi.'.$identifier.'.numberoffiles'}+1;
                    180:   my $student_names = $env{'cgi.'.$identifier.'.studentnames'};
                    181:   my $backref = &Apache::lonnet::unescape($env{'cgi.'.$identifier.'.backref'});
1.43      sakharuk  182: 
1.49      albertel  183:   
1.44      sakharuk  184:   my @names_pack=();
                    185:   if ($student_names=~/_END_/) {  
                    186:       @names_pack=split(/_ENDPERSON_/,$student_names);
                    187:   }
1.39      sakharuk  188: 
1.14      sakharuk  189:   my $figfile = $texfile;
                    190:   $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;
                    191:   my $duefile = $texfile;
                    192:   $duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/;
                    193:   #do we have figures?
1.73      foxr      194:   # print "Figure file: $figfile\n";
1.14      sakharuk  195:   if (-e $figfile) {
1.73      foxr      196:       # print "$figfile exists\n";
1.42      albertel  197:       my %done_conversion;
1.69      matthew   198:       my $temporary_file=IO::File->new($figfile) || die "Couldn't open fig file $figfile for reading: $!\n";
1.14      sakharuk  199:       my @content_of_file = <$temporary_file>;
                    200:       close $temporary_file;  
                    201:       my $noteps;
1.49      albertel  202:       my %prog_state;
1.92      albertel  203:       if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Coverting Images to EPS','Picture Conversion Status',$#content_of_file,'inline','80');  }
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");
1.20      sakharuk  242:               #check is eps exist in prtspool
                    243:               if(not -e $eps_f) {
                    244: 		  for (my $i=0;$i<10000;$i++) {
                    245: 		      if (-e $eps_f.'.'.$i) {
                    246: 			  rename $eps_f.'.'.$i, $eps_f;
                    247: 			  last;
                    248: 		      }
                    249: 		  }
                    250: 	      }  
1.14      sakharuk  251: 	  }
                    252:       }
1.92      albertel  253:       if ($advanced_role) { 
1.74      foxr      254: 	  &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); 
                    255:       }
1.52      albertel  256:       unlink($figfile);
1.14      sakharuk  257:   }
1.43      sakharuk  258:   #print "$texfile\n"; #name of the tex file for debugging only   
                    259:   my @texfile=($texfile);
                    260:   if ($number_of_files>1) {
1.49      albertel  261:       @texfile=();
                    262:       for (my $i=1;$i<=$number_of_files;$i++) {
1.43      sakharuk  263: 	  my $new_texfile=$texfile;
1.86      foxr      264: 	  $new_texfile=~s/\.tex//;
                    265: 	  $new_texfile = sprintf("%s_%03d.tex", $new_texfile,$i);
1.43      sakharuk  266: 	  push @texfile,$new_texfile;
                    267:       } 
                    268:   }
1.49      albertel  269: 
1.44      sakharuk  270: my $ind=-1;
1.49      albertel  271: my %prog_state;
1.61      albertel  272: print "<a href=\"$backref\"><b>Return</b></a> to last resource.<br /><br />";
1.92      albertel  273: if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status','Class Print Status',$number_of_files,'inline','80'); }
1.61      albertel  274: print "<br />";
1.88      foxr      275: my $num_files = @texfile;
1.43      sakharuk  276: foreach $texfile (@texfile) {
1.49      albertel  277:   my $status_statement='';
                    278:   my $link_text='download PDF';
                    279:   $ind++;
                    280:   my @stud_info=split(/_END_/,$names_pack[$ind]);
                    281:   my @tempo_array=split(/:/,$stud_info[0]);
                    282:   my $name;
1.88      foxr      283:   my $name_range='';
1.49      albertel  284:   if ($tempo_array[3]) {
                    285:       $name=$tempo_array[3];
1.89      foxr      286:       ($name_range) = split(/,/,$name, 2);
1.49      albertel  287:   } else {
                    288:       $name=$tempo_array[0].'@'.$tempo_array[1];
1.88      foxr      289:       $name_range = $tempo_array[0];
                    290:   }
                    291:   if (($name ne "") && ($name ne '@') ) { # Could be printing codes...
                    292:       $link_text='<b>'.$name.'</b>';
                    293:       $status_statement.=$name;
1.49      albertel  294:   }
                    295:   if ($#stud_info>0) {
                    296:       @tempo_array=split(/:/,$stud_info[-1]);
1.48      albertel  297:       if ($tempo_array[3]) {
                    298: 	  $name=$tempo_array[3];
1.89      foxr      299: 	  my ($lastname) = split(/,/, $name,2);
                    300: 	  $name_range .= "-".$lastname;
1.48      albertel  301:       } else {
                    302: 	  $name=$tempo_array[0].'@'.$tempo_array[1];
1.88      foxr      303: 	  $name_range .= '-'.$tempo_array[0];
                    304:       }
                    305:       if (($name ne "") && ($name ne '@')) {
                    306: 	  $link_text.=' - <b>'.$name.'</b>';
                    307: 	  $status_statement.=' -  '.$name;
                    308:   
1.48      albertel  309:       }
1.88      foxr      310:   }
                    311:   if(($num_files > 1) && ($link_text eq 'download PDF')) { # Printing codes
                    312:       $link_text = '<b>'.basename($texfile,'.tex').'.pdf</b>';
                    313:       $status_statement .= basename($texfile);
                    314:   }
                    315:   $name_range =~ s/'//g;	# O'Neil -> ONeil e.g.
                    316:   print "<br/>";
1.92      albertel  317:   if ($advanced_role) { &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Creating PDF for '.$status_statement); }
1.88      foxr      318:   #  This little piece of dirt puts username ranges into the original tex
                    319:   #  Tex filename from which they'll propagate into the other filenames as well.
                    320:   #
1.29      sakharuk  321:   if (-e $texfile) {
1.88      foxr      322:       if (($name_range ne '') && ($num_files > 1)) {
                    323: 	  my $newtexfile = $texfile;
                    324: 	  $newtexfile    =~ s/\.tex/$name_range\.tex/;
                    325: 	  rename($texfile, $newtexfile);
                    326: 	  $texfile       = $newtexfile;
                    327:       }
1.29      sakharuk  328:       $texfile =~ m/^(.*)\/([^\/]+)$/; 
                    329:       my $name_file = $2;
                    330:       my $path_file = $1.'/';
                    331:       chdir $path_file;
1.88      foxr      332:       my $dvi_file= $name_file; $dvi_file =~ s/\.tex/$name_range\.dvi/;
1.59      albertel  333:       &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
                    334: 			 "for $status_statement now LaTeXing file",
                    335: 			 \%prog_state,$dvi_file);
1.40      sakharuk  336:       if ($tableofcontents eq 'yes') {
1.63      sakharuk  337:       &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
                    338: 			 "for $status_statement now LaTeXing file for table of contents",
                    339: 			 \%prog_state,$dvi_file);
1.40      sakharuk  340:       } #to create table of contents
1.33      sakharuk  341:       my $idxname=$name_file;
                    342:       $idxname=~s/\.tex$/\.idx/;
1.40      sakharuk  343:       if ($tableofindex eq 'yes') {
1.63      sakharuk  344: 	  &busy_wait_command("makeindex $idxname",
                    345: 			     "making index file",
                    346: 			     \%prog_state,$idxname);
                    347: 	  &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
                    348: 			     "for $status_statement now LaTeXing file for index section",
                    349: 			     \%prog_state,$dvi_file);
1.33      sakharuk  350:       } #to create index
1.29      sakharuk  351:       #Do we have a latex error in the log file?
1.67      sakharuk  352:       my $logfilename = $texfile; $logfilename =~ s/\.tex$/\.log/;
1.69      matthew   353:       my $temporary_file=IO::File->new($logfilename) || die "Couldn't open log file $logfilename for reading: $!\n";
1.29      sakharuk  354:       my @content_of_file = <$temporary_file>;
                    355:       close $temporary_file; 
1.30      sakharuk  356:       my $body_log_file = join(' ',@content_of_file);
                    357:       $logfilename =~ s/\.log$/\.html/;
                    358:       $temporary_file = IO::File->new('>'.$logfilename); 
                    359:       print $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n";
1.29      sakharuk  360:       if ($body_log_file=~m/!\s+Emergency stop/) {
                    361: 	  my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
                    362: 	  my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
1.81      foxr      363: 	  my $badresource;
1.83      foxr      364: 	  my $badtext;
1.29      sakharuk  365: 	  if ($whereitbegins!=-1 and $whereitends!=-1) {
1.83      foxr      366: 	      $badtext = substr($body_log_file,$whereitbegins+26, $whereitends-$whereitbegins-26);
1.81      foxr      367: 	      $whereitbegins  = rindex $badtext,'located in';
                    368: 	      if ($whereitbegins != -1) {
                    369: 		  
                    370: 		  $badresource = substr($badtext, $whereitbegins+27, 
                    371: 					length($badtext) - $whereitbegins - 48);
1.84      albertel  372: 		  # print "<br />failing resourcename: $badresource<br />";
1.81      foxr      373: 	      }
1.29      sakharuk  374: 	  }
1.83      foxr      375: 	  
1.75      albertel  376:           if ($advanced_role) {  
1.83      foxr      377: 	      #LaTeX failed to parse tex file 
                    378: 	      print "<h2>LaTeX could not successfully parse your tex file.</h2>";
                    379: 	      print "It probably has errors in it.<br />";
                    380: 	      print "With very high probability this error occured in ".$badtext."<br /><br />";
1.84      albertel  381: 	      print "Here are the error messages in the LaTeX log file<br /><pre>";
1.90      foxr      382: 
1.83      foxr      383: 	      my $sygnal = 0;
                    384: 	      for (my $i=0;$i<=$#content_of_file;$i++) {
                    385: 		  if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {
                    386: 		      $sygnal = 1;
                    387: 		  } 
                    388: 		  if ($content_of_file[$i]=~m/Here is how much of/) {
                    389: 		      $sygnal = 0;
                    390: 		  } 
                    391: 		  if ($sygnal) {
                    392: 		      print "$content_of_file[$i]";
                    393: 		  }  
                    394: 	      }
                    395: 	      print "</pre>\n";
1.84      albertel  396: 	      # print "<br /> Advanced role <br />";
1.35      sakharuk  397:               print "<b><big>The link to ";
                    398:               $logfilename=~s/\/home\/httpd//;
                    399: 	      print "<a href=\"$logfilename\">Your log file </a></big></b>";
                    400: 	      print "\n";
                    401:               #link tooriginal LaTeX file (included according Michael Hamlin desire)
1.69      matthew   402: 	      my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
1.35      sakharuk  403: 	      my @tex_content_of_file = <$tex_temporary_file>;
                    404: 	      close $tex_temporary_file; 
                    405: 	      my $body_tex_file = join(' ',@tex_content_of_file);
                    406: 	      $texfile =~ s/\.tex$/aaaaa\.html/;
                    407: 	      $tex_temporary_file = IO::File->new('>'.$texfile); 
                    408: 	      print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
                    409: 	      print "<br /><br />";
                    410: 	      print "<b><big>The link to ";
                    411: 	      $texfile=~s/\/home\/httpd//;
                    412: 	      print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
                    413: 	      print "\n";
1.90      foxr      414: 	      my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", "Help on printing");
                    415: 	      print ("$help_text");
                    416: 
1.77      foxr      417: 	  } else {		# Student role...
                    418: 	      #  at this point:
                    419: 	      #    $body_log_file - contains the log file.
                    420:               #    $name_file     - is the name of the LaTeX file.
                    421:               #    $identifier    - is the unique LaTeX identifier.l
                    422: 
1.84      albertel  423: 	      print "<br />There are errors in $badtext";
                    424: 	      print "<br />These errors prevent this resource from printing correctly";
1.77      foxr      425: 	      my $tex_handle = IO::File->new($name_file);
                    426: 	      my @tex_contents = <$tex_handle>;
1.81      foxr      427: 	      &send_error_mail($identifier, $badresource, $body_log_file, \@tex_contents);
1.90      foxr      428: 	      print "<br />A message has been sent to the instructor describing this failure<br />";
                    429: 	      my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", "Help on printing");
                    430: 	      print  ("$help_text");
                    431: 
1.36      sakharuk  432: 	  }
1.35      sakharuk  433: 
1.29      sakharuk  434:       } elsif ($body_log_file=~m/<inserted text>/) {
                    435: 	  my $whereitbegins = index $body_log_file,'<inserted text>';
1.59      albertel  436: 	  print "You are running LaTeX in <b>batch mode</b>.";
1.30      sakharuk  437: 	  while ($whereitbegins != -1) {
                    438: 	      my $tempobegin=$whereitbegins;
                    439: 	      $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins;
                    440: 	      my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$whereitbegins;
1.34      sakharuk  441: 	      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  442: 	      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";
                    443: 	      $whereitbegins = index $body_log_file,'<inserted text>',$tempobegin+10;
                    444: 	  }
1.29      sakharuk  445: 	  $name_file =~ s/\.tex/\.dvi/;
                    446: 	  my $new_name_file = $name_file;
                    447: 	  $new_name_file =~ s/\.dvi/\.ps/;
1.67      sakharuk  448: 	  my $papera=$paper;
1.62      sakharuk  449: 	  if ($papera eq 'letter') {$papera='';}
                    450: 	  if ($papera ne '') {$papera='-t'.$papera;}
                    451: 	  my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file";
1.59      albertel  452: 	  &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
                    453: 			     "for $status_statement now Converting to PS",
                    454: 			     \%prog_state,$new_name_file);
1.29      sakharuk  455: 	  if (-e $new_name_file) {
                    456: 	      print "<h1>PDF output file (see link below)</h1>\n";
                    457: 	      $new_name_file =~ m/^(.*)\./;
1.59      albertel  458: 	      my $ps_file = my $tempo_file = $1.'temporar.ps';
                    459: 	      my $pdf_file = $1.'.pdf';
1.29      sakharuk  460: 	      if ($laystyle eq 'album' and $numberofcolumns eq '2') {
1.82      albertel  461: 		  my $papera=$paper;
                    462:                   if ($papera eq 'letter') {$papera='';}
                    463: 		  if ($papera ne '') {$papera='-p'.$papera;}
                    464: 		  $comma = "psnup $papera -2 -s1.0 $new_name_file";
1.59      albertel  465: 		  &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
                    466: 				     "for $status_statement now Modifying PS layout",
                    467: 				     \%prog_state,$tempo_file); 
1.29      sakharuk  468: 	      } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
1.67      sakharuk  469: 		  my $papera=$paper;
                    470:                   if ($papera eq 'letter') {$papera='';}
1.62      sakharuk  471: 		  if ($papera ne '') {$papera='-p'.$papera;}
                    472: 		  $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"';
1.63      sakharuk  473: 		  &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null",
                    474: 				     "for $status_statement now Modifying PS layout",
                    475: 				     \%prog_state,$tempo_file); 
                    476: 
1.29      sakharuk  477: 	      } else {
1.59      albertel  478: 		  $ps_file=$new_name_file;
1.29      sakharuk  479: 	      }	    
1.59      albertel  480: 	      &busy_wait_command("ps2pdf $ps_file $pdf_file 1>/dev/null 2>/dev/null",
                    481: 				 "for $status_statement now Converting PS to PDF",
                    482: 				 \%prog_state, $pdf_file);
                    483: 
1.29      sakharuk  484: 	      my $texlog = $texfile;
                    485: 	      my $texaux = $texfile;
                    486: 	      my $texdvi = $texfile;
                    487: 	      my $texps = $texfile;
                    488: 	      $texlog =~ s/\.tex/\.log/;
                    489: 	      $texaux =~ s/\.tex/\.aux/;
                    490: 	      $texdvi =~ s/\.tex/\.dvi/;
                    491: 	      $texps =~ s/\.tex/\.ps/;
1.30      sakharuk  492: 	      my @garb = ($texaux,$texdvi,$texps);
1.29      sakharuk  493: #	  unlink @garb;
                    494: 	      unlink $duefile;
1.59      albertel  495: 	      print "<a href=\"/prtspool/$pdf_file\">Your PDF document</a>";
1.75      albertel  496: 	  }
                    497: 	  if ($advanced_role) {  
                    498: 	      print "<br /><br />";
                    499: 	      print "<b><big>The link to ";
                    500: 	      $logfilename=~s/\/home\/httpd//;
                    501: 	      print "<a href=\"$logfilename\">Your log file </a></big></b>";
                    502: 	      print "\n";
                    503: 	      #link tooriginal LaTeX file (included according Michael Hamlin desire)
                    504: 	      my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
                    505: 	      my @tex_content_of_file = <$tex_temporary_file>;
                    506: 	      close $tex_temporary_file; 
                    507: 	      my $body_tex_file = join(' ',@tex_content_of_file);
                    508: 	      $texfile =~ s/\.tex$/aaaaa\.html/;
                    509: 	      $tex_temporary_file = IO::File->new('>'.$texfile); 
                    510: 	      print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
                    511: 	      print "<br /><br />";
                    512: 	      print "<b><big>The link to ";
                    513: 	      $texfile=~s/\/home\/httpd//;
                    514: 	      print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
                    515: 	      print "\n";
1.29      sakharuk  516: 	  }
                    517:       } else {
                    518: 	  #LaTeX successfully parsed tex file 
                    519: 	  $name_file =~ s/\.tex/\.dvi/;
                    520: 	  my $new_name_file = $name_file;
                    521: 	  $new_name_file =~ s/\.dvi/\.ps/;
1.67      sakharuk  522: 	  my $papera=$paper;
1.62      sakharuk  523: 	  if ($papera eq 'letter') {$papera='';}
                    524: 	  if ($papera ne '') {$papera='-t'.$papera;}
                    525: 	  my $comma = "dvips $papera -Ppdf -G0 -o $new_name_file";
1.59      albertel  526: 	  &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
                    527: 			     "for $status_statement now Converting to PS",
                    528: 			     \%prog_state,$new_name_file);
1.29      sakharuk  529: 	  if (-e $new_name_file) {
1.61      albertel  530: 	      print "<br />";
1.29      sakharuk  531: 	      $new_name_file =~ m/^(.*)\./;
1.59      albertel  532: 	      my $ps_file = my $tempo_file = $1.'temporar.ps';
                    533: 	      my $pdf_file = $1.'.pdf';
1.82      albertel  534: 	      $papera=~s/t/p/;
1.29      sakharuk  535: 	      if ($laystyle eq 'album' and $numberofcolumns eq '2') {
1.82      albertel  536: 		  $comma = "psnup $papera -2 -s1.0 $new_name_file";
1.59      albertel  537: 		  &busy_wait_command("$comma $tempo_file 1>/dev/null 2>/dev/null",
                    538: 				     "for $status_statement now Modifying PS layout",
                    539: 				     \%prog_state,$tempo_file);
1.29      sakharuk  540: 	      } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
1.65      sakharuk  541: 		  $comma = 'pstops '.$papera.' "2:0+1(0.48w,0)"';
1.59      albertel  542: 		  &busy_wait_command("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null",
                    543: 				     "for $status_statement now Modifying PS layout",
                    544: 				     \%prog_state,$tempo_file); 
1.29      sakharuk  545: 	      } else {
1.59      albertel  546: 		  $ps_file=$new_name_file;
                    547: 	      }
1.67      sakharuk  548: 	      my $addtoPSfile={'legal'=>'<< /PageSize [612 1008] >> setpagedevice',
                    549:                                'tabloid'=>'<< /PageSize [792 1224] >> setpagedevice',
                    550:                                'executive'=>,'<< /PageSize [540 720] >> setpagedevice',
                    551:                                'a2'=>'<< /PageSize [1195.02 1690.09] >> setpagedevice',
                    552:                                'a3'=>'<< /PageSize [842 1195.02] >> setpagedevice',
                    553:                                'a4'=>'<< /PageSize [595.2 842] >> setpagedevice',
                    554:                                'a5'=>'<< /PageSize [421.1 595.2] >> setpagedevice',
                    555:                                'a6'=>'<< /PageSize [298.75 421.1] >> setpagedevice',
                    556: 			   };
                    557: 	      if ($paper ne 'letter') {
1.69      matthew   558: 		  open(FFH,'<',$ps_file) || die "Couldn't open ps file $ps_file for reading: $!\n";
1.63      sakharuk  559: 		  my $new_ps_file='new'.$ps_file;
1.69      matthew   560: 		  open(FFHS,'>',$new_ps_file) || die "Couldn't open new ps file $new_ps_file for reading: $!\n";
1.67      sakharuk  561: 		  print FFHS $addtoPSfile->{$paper}."\n";
1.63      sakharuk  562: 		  while (<FFH>) {
                    563: 		      print FFHS $_;
                    564: 		  }
1.62      sakharuk  565: 		  close(FFH);
1.63      sakharuk  566: 		  close(FFHS);
                    567: 		  $ps_file=$new_ps_file;	  
1.62      sakharuk  568: 	      }
1.59      albertel  569: 	      &busy_wait_command("ps2pdf $ps_file $pdf_file 1>/dev/null 2>/dev/null",
                    570: 				 "for $status_statement now Converting PS to PDF",
                    571: 				 \%prog_state,$pdf_file);
                    572: 	    
1.29      sakharuk  573: 	      my $texlog = $texfile;
                    574: 	      my $texaux = $texfile;
                    575: 	      my $texdvi = $texfile;
                    576: 	      my $texps = $texfile;
                    577: 	      $texlog =~ s/\.tex/\.log/;
                    578: 	      $texaux =~ s/\.tex/\.aux/;
                    579: 	      $texdvi =~ s/\.tex/\.dvi/;
                    580: 	      $texps =~ s/\.tex/\.ps/;
                    581: 	      my @garb = ($texlog,$texaux,$texdvi,$texps);
1.22      sakharuk  582: #	  unlink @garb;
1.29      sakharuk  583: 	      unlink $duefile;
1.68      sakharuk  584: 	      print "<a href=\"/prtspool/$pdf_file\">$link_text - click here to download pdf</a>";
1.29      sakharuk  585: 	      print "\n";
                    586: 	  }
1.63      sakharuk  587:       }  
1.29      sakharuk  588:   } else {
                    589:       print "LaTeX file $texfile was not created successfully";
1.14      sakharuk  590:   }
1.43      sakharuk  591: }
1.45      sakharuk  592: print "<br />";
1.44      sakharuk  593: if ($number_of_files>1) {
1.45      sakharuk  594:     my $zipfile=$texfile[0];
                    595:     $zipfile=~s/\.tex/\.zip/;
                    596:     my $statement="zip $zipfile";
1.44      sakharuk  597:     foreach my $file (@texfile) {
1.45      sakharuk  598: 	$file=~s/\.tex/.\pdf/;
                    599: 	$statement.=' '.$file; 
1.44      sakharuk  600:     }
1.49      albertel  601:     print("<pre>Zip Output:\n");
                    602:     system($statement);
                    603:     print("</pre>");
1.45      sakharuk  604:     $zipfile=~s/\/home\/httpd//;
1.49      albertel  605:     print "<br /> A <a href=\"$zipfile\">ZIP file</a> of all the PDFs.";
1.44      sakharuk  606: }
1.92      albertel  607: if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
1.1       sakharuk  608: 
1.59      albertel  609: my $done;
                    610: sub REAPER {
                    611:     $done=1;
                    612: }
                    613: 
                    614: sub busy_wait_command {
                    615:     my ($command,$message,$progress_win,$output_file)=@_;
                    616:     
                    617:     $SIG{CHLD} = \&REAPER;
                    618:     $done=0;
                    619:     my $pid=open(CMD,"$command |");
1.92      albertel  620:     if ($advanced_role) {
1.60      albertel  621: 	&Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);
                    622:     }
1.59      albertel  623:     while(!$done) {
                    624: 	sleep 1;
                    625: 	my $extra_msg;
                    626: 	if ($output_file) {
                    627: 	    my $size=(stat($output_file))[7];
                    628: 	    $extra_msg=", $size bytes generated";
                    629: 	}
1.92      albertel  630: 	if ($advanced_role) {
1.60      albertel  631: 	    &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,
                    632: 						  $message.$extra_msg);
                    633: 	}
1.59      albertel  634:     }
                    635:     $SIG{CHLD}='IGNORE';
                    636:     close(CMD);
                    637: }
1.1       sakharuk  638: 
                    639: 
                    640: 
1.4       sakharuk  641: 

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