loncom/interface/printout.pl - view

File: [LON-CAPA] / loncom / interface / printout.pl
Revision 1.51: download - view: text, annotated - select for diffs
Wed Feb 18 23:33:17 2004 UTC (20 years, 2 months ago) by albertel
Branches: MAIN
CVS tags: HEAD

- &mt() would return an array into scalar context, needs to return a scalar in those cases
- printout.pl now has the headers, and set charset properly
- lonlocal works in a CGI context (but of course it will be slower since the language handle isn't persitent)
- loncommon::content_type works in a CGI context

1: #!/usr/bin/perl 2: # CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc. 3: # 4: # $Id: printout.pl,v 1.51 2004/02/18 23:33:17 albertel Exp $ 5: # 6: # Copyright Michigan State University Board of Trustees 7: # 8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA). 9: # 10: # LON-CAPA is free software; you can redistribute it and/or modify 11: # it under the terms of the GNU General Public License as published by 12: # the Free Software Foundation; either version 2 of the License, or 13: # (at your option) any later version. 14: # 15: # LON-CAPA is distributed in the hope that it will be useful, 16: # but WITHOUT ANY WARRANTY; without even the implied warranty of 17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18: # GNU General Public License for more details. 19: # 20: # You should have received a copy of the GNU General Public License 21: # along with LON-CAPA; if not, write to the Free Software 22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 23: # 24: # /home/httpd/html/adm/gpl.txt 25: # 26: # http://www.lon-capa.org/ 27: # 28: 29: use lib '/home/httpd/lib/perl'; 30: use Time::Local; 31: use LONCAPA::loncgi(); 32: use File::Path; 33: use IO::File; 34: use Image::Magick; 35: use Apache::lonhtmlcommon; 36: use Apache::loncommon; 37: use Apache::lonlocal; 38: 39: $|=1; 40: my %origENV=%ENV; 41: if (! &LONCAPA::loncgi::check_cookie_and_load_env()) { 42: print <<END; 43: Content-type: text/html 44: 45: <html> 46: <head><title>Bad Cookie</title></head> 47: <body> 48: Your cookie information is incorrect. 49: </body> 50: </html> 51: END 52: return; 53: } 54: &Apache::lonlocal::get_language_handle(); 55: &Apache::loncommon::content_type(undef,'text/html'); 56: my $bodytag=&Apache::loncommon::bodytag('Creating PDF','',''); 57: print $bodytag; 58: 59: my $identifier = $ENV{'QUERY_STRING'}; 60: my $texfile = $ENV{'cgi.'.$identifier.'.file'}; 61: my $laystyle = $ENV{'cgi.'.$identifier.'.layout'}; 62: my $numberofcolumns = $ENV{'cgi.'.$identifier.'.numcol'}; 63: my $selectionmade = $ENV{'cgi.'.$identifier.'.selection'}; 64: my $tableofcontents = $ENV{'cgi.'.$identifier.'tableofcontents'}; 65: my $tableofindex = $ENV{'cgi.'.$identifier.'tableofindex'}; 66: my $advans_role = $ENV{'cgi.'.$identifier.'role'}; 67: my $number_of_files = $ENV{'cgi.'.$identifier.'numberoffiles'}+1; 68: my $student_names = $ENV{'cgi.'.$identifier.'studentnames'}; 69: my $backref = $ENV{'cgi.'.$identifier.'backref'}; 70: 71: my $adv = $ENV{'request.role.adv'}; 72: 73: my @names_pack=(); 74: if ($student_names=~/_END_/) { 75: @names_pack=split(/_ENDPERSON_/,$student_names); 76: } 77: #got what we needed reset ENV in case it is to big for system 78: %ENV=%origENV; 79: 80: my $figfile = $texfile; 81: $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/; 82: my $duefile = $texfile; 83: $duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/; 84: #do we have figures? 85: if (-e $figfile) { 86: my %done_conversion; 87: my $temporary_file=IO::File->new($figfile) || die "Couldn't open file for reading: $!\n"; 88: my @content_of_file = <$temporary_file>; 89: close $temporary_file; 90: my $noteps; 91: my %prog_state; 92: if ($adv) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Coverting Images to EPS','Picture Conversion Status',$#content_of_file); } 93: foreach $not_eps (@content_of_file) { 94: chomp($not_eps); 95: if ($not_eps ne '') { 96: my $status_statement='EPS picture for '.$not_eps; 97: $not_eps=~s|\/\.\/|\/|g; 98: my $eps_f = $not_eps; 99: $eps_f =~ s/\.[^.]*$/\.eps/i; 100: if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) { 101: $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/; 102: $eps_f = '/home/httpd/prtspool/'.$eps_f; 103: } else { 104: $eps_f=~m/\/home\/httpd\/html\/res\/(.+)/; 105: $eps_f = '/home/httpd/prtspool/'.$1; 106: } 107: my $path=$eps_f; 108: $path=~s/\/([^\/]+)\.eps$//; 109: File::Path::mkpath($path,0,0777); 110: my $image = Image::Magick->new; 111: $not_eps =~ s/^\s+//; 112: $not_eps =~ s/\s+$//; 113: if ( exists($done_conversion{$not_eps})) { 114: next; 115: } 116: if ($adv) { 117: my $prettyname=$not_eps; 118: $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|; 119: $prettyname=~s|/home/httpd/html/|/|; 120: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Converting to EPS '.$prettyname); } 121: $done_conversion{$not_eps}=1; 122: $status = $image->Read($not_eps); 123: if ($status) {print " $status ";} 124: $image->Set(page => '+100+200'); 125: $status = $image->Write($eps_f); 126: if ($status) {print " $status ";} 127: #check is eps exist in prtspool 128: if(not -e $eps_f) { 129: for (my $i=0;$i<10000;$i++) { 130: if (-e $eps_f.'.'.$i) { 131: rename $eps_f.'.'.$i, $eps_f; 132: last; 133: } 134: } 135: } 136: } 137: } 138: if ($adv) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); } 139: } 140: #print "$texfile\n"; #name of the tex file for debugging only 141: my @texfile=($texfile); 142: if ($number_of_files>1) { 143: @texfile=(); 144: for (my $i=1;$i<=$number_of_files;$i++) { 145: my $new_texfile=$texfile; 146: $new_texfile=~s/\.tex/_$i\.tex/; 147: push @texfile,$new_texfile; 148: } 149: } 150: 151: my $ind=-1; 152: my %prog_state; 153: if ($adv) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status','Class Print Status',$number_of_files); } 154: my $final_statement="<a href=\"$backref\">Return</b</a> to last resource. Generated PDF File for: "; 155: foreach $texfile (@texfile) { 156: my $status_statement=''; 157: my $link_text='download PDF'; 158: $ind++; 159: my @stud_info=split(/_END_/,$names_pack[$ind]); 160: my @tempo_array=split(/:/,$stud_info[0]); 161: my $name; 162: if ($tempo_array[3]) { 163: $name=$tempo_array[3]; 164: } else { 165: $name=$tempo_array[0].'@'.$tempo_array[1]; 166: } 167: $link_text=''.$name.' '; 168: $status_statement.=$name; 169: if ($#stud_info>0) { 170: @tempo_array=split(/:/,$stud_info[-1]); 171: if ($tempo_array[3]) { 172: $name=$tempo_array[3]; 173: } else { 174: $name=$tempo_array[0].'@'.$tempo_array[1]; 175: } 176: $link_text.='- '.$name.': '; 177: $status_statement.=' - '.$name; 178: } 179: if ($adv) { &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Creating PDF for '.$status_statement); } 180: if (-e $texfile) { 181: $texfile =~ m/^(.*)\/([^\/]+)$/; 182: my $name_file = $2; 183: my $path_file = $1.'/'; 184: chdir $path_file; 185: system("latex $name_file 1>/dev/null 2>/dev/null"); 186: if ($tableofcontents eq 'yes') { 187: system("latex $name_file 1>/dev/null 2>/dev/null"); 188: } #to create table of contents 189: my $idxname=$name_file; 190: $idxname=~s/\.tex$/\.idx/; 191: if ($tableofindex eq 'yes') { 192: system("makeindex $idxname"); 193: system("latex $name_file 1>/dev/null 2>/dev/null"); 194: } #to create index 195: #Do we have a latex error in the log file? 196: my $logfilename = $texfile; 197: $logfilename =~ s/\.tex$/\.log/; 198: my $temporary_file=IO::File->new($logfilename) || die "Couldn't open file for reading: $!\n"; 199: my @content_of_file = <$temporary_file>; 200: close $temporary_file; 201: my $body_log_file = join(' ',@content_of_file); 202: $logfilename =~ s/\.log$/\.html/; 203: $temporary_file = IO::File->new('>'.$logfilename); 204: print $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n"; 205: if ($body_log_file=~m/!\s+Emergency stop/) { 206: #LaTeX failed to parse tex file 207: print "<h2>LaTeX could not successfully parse your tex file.</h2>"; 208: print "It probably has errors in it. "; 209: my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART'; 210: my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND'; 211: if ($whereitbegins!=-1 and $whereitends!=-1) { 212: print "With very high probability this error occured in ".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)." "; 213: } 214: print "Here are the error messages in the LaTeX log file "; 215: my $sygnal = 0; 216: for (my $i=0;$i<=$#content_of_file;$i++) { 217: if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) { 218: $sygnal = 1; 219: } 220: if ($content_of_file[$i]=~m/Here is how much of/) { 221: $sygnal = 0; 222: } 223: if ($sygnal) { 224: print "$content_of_file[$i] "; 225: } 226: } 227: if ($advans_role) { 228: print "<big>The link to "; 229: $logfilename=~s/\/home\/httpd//; 230: print "<a href=\"$logfilename\">Your log file </a></big>"; 231: print "\n"; 232: #link tooriginal LaTeX file (included according Michael Hamlin desire) 233: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open file for reading: $!\n"; 234: my @tex_content_of_file = <$tex_temporary_file>; 235: close $tex_temporary_file; 236: my $body_tex_file = join(' ',@tex_content_of_file); 237: $texfile =~ s/\.tex$/aaaaa\.html/; 238: $tex_temporary_file = IO::File->new('>'.$texfile); 239: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n"; 240: print " "; 241: print "<big>The link to "; 242: $texfile=~s/\/home\/httpd//; 243: print "<a href=\"$texfile\">Your original LaTeX file </a></big>"; 244: print "\n"; 245: } 246: 247: } elsif ($body_log_file=~m/<inserted text>/) { 248: my $whereitbegins = index $body_log_file,'<inserted text>'; 249: print "You are running LaTeX in the batch mode."; 250: while ($whereitbegins != -1) { 251: my $tempobegin=$whereitbegins; 252: $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins; 253: my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$whereitbegins; 254: print " It has found an error in".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)." and corrected it.\n"; 255: 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"; 256: $whereitbegins = index $body_log_file,'<inserted text>',$tempobegin+10; 257: } 258: $name_file =~ s/\.tex/\.dvi/; 259: my $new_name_file = $name_file; 260: $new_name_file =~ s/\.dvi/\.ps/; 261: my $comma = "dvips -Ppdf -G0 -o $new_name_file"; 262: system("$comma $name_file 1>/dev/null 2>/dev/null"); 263: if (-e $new_name_file) { 264: print "<h1>PDF output file (see link below)</h1>\n"; 265: $new_name_file =~ m/^(.*)\./; 266: my $tempo_file = $1.'temporar.ps'; 267: my $name_file = $1.'.pdf'; 268: if ($laystyle eq 'album' and $numberofcolumns eq '2') { 269: $comma = "psnup -2 -s1.0 $new_name_file"; 270: system("$comma $tempo_file 1>/dev/null 2>/dev/null"); 271: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null"); 272: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') { 273: $comma = 'pstops -pletter "2:0+1(0.48w,0)"'; 274: system("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null"); 275: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null"); 276: } else { 277: system("ps2pdf $new_name_file $name_file 1>/dev/null 2>/dev/null"); 278: } 279: my $texlog = $texfile; 280: my $texaux = $texfile; 281: my $texdvi = $texfile; 282: my $texps = $texfile; 283: $texlog =~ s/\.tex/\.log/; 284: $texaux =~ s/\.tex/\.aux/; 285: $texdvi =~ s/\.tex/\.dvi/; 286: $texps =~ s/\.tex/\.ps/; 287: my @garb = ($texaux,$texdvi,$texps); 288: # unlink @garb; 289: unlink $duefile; 290: print "<a href=\"/prtspool/$name_file\">Your PDF document</a>"; 291: if ($advans_role) { 292: print " "; 293: print "<big>The link to "; 294: $logfilename=~s/\/home\/httpd//; 295: print "<a href=\"$logfilename\">Your log file </a></big>"; 296: print "\n"; 297: #link tooriginal LaTeX file (included according Michael Hamlin desire) 298: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open file for reading: $!\n"; 299: my @tex_content_of_file = <$tex_temporary_file>; 300: close $tex_temporary_file; 301: my $body_tex_file = join(' ',@tex_content_of_file); 302: $texfile =~ s/\.tex$/aaaaa\.html/; 303: $tex_temporary_file = IO::File->new('>'.$texfile); 304: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n"; 305: print " "; 306: print "<big>The link to "; 307: $texfile=~s/\/home\/httpd//; 308: print "<a href=\"$texfile\">Your original LaTeX file </a></big>"; 309: print "\n"; 310: } 311: } 312: } else { 313: #LaTeX successfully parsed tex file 314: $name_file =~ s/\.tex/\.dvi/; 315: my $new_name_file = $name_file; 316: $new_name_file =~ s/\.dvi/\.ps/; 317: my $comma = "dvips -Ppdf -G0 -o $new_name_file"; 318: system("$comma $name_file 1>/dev/null 2>/dev/null"); 319: if (-e $new_name_file) { 320: print " $final_statement "; 321: $final_statement=''; 322: $new_name_file =~ m/^(.*)\./; 323: my $tempo_file = $1.'temporar.ps'; 324: my $name_file = $1.'.pdf'; 325: if ($laystyle eq 'album' and $numberofcolumns eq '2') { 326: $comma = "psnup -2 -s1.0 $new_name_file"; 327: system("$comma $tempo_file 1>/dev/null 2>/dev/null"); 328: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null"); 329: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') { 330: $comma = 'pstops -pletter "2:0+1(0.48w,0)"'; 331: system("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null"); 332: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null"); 333: } else { 334: system("ps2pdf $new_name_file $name_file 1>/dev/null 2>/dev/null"); 335: } 336: my $texlog = $texfile; 337: my $texaux = $texfile; 338: my $texdvi = $texfile; 339: my $texps = $texfile; 340: $texlog =~ s/\.tex/\.log/; 341: $texaux =~ s/\.tex/\.aux/; 342: $texdvi =~ s/\.tex/\.dvi/; 343: $texps =~ s/\.tex/\.ps/; 344: my @garb = ($texlog,$texaux,$texdvi,$texps); 345: # unlink @garb; 346: unlink $duefile; 347: print "<a href=\"/prtspool/$name_file\">$link_text</a>"; 348: print "\n"; 349: } 350: } 351: } else { 352: print "LaTeX file $texfile was not created successfully"; 353: } 354: } 355: print " "; 356: if ($number_of_files>1) { 357: my $zipfile=$texfile[0]; 358: $zipfile=~s/\.tex/\.zip/; 359: my $statement="zip $zipfile"; 360: foreach my $file (@texfile) { 361: $file=~s/\.tex/.\pdf/; 362: $statement.=' '.$file; 363: } 364: print("<pre>Zip Output:\n"); 365: system($statement); 366: print("</pre>"); 367: $zipfile=~s/\/home\/httpd//; 368: print " A <a href=\"$zipfile\">ZIP file</a> of all the PDFs."; 369: } 370: if ($adv) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); } 371: 372: 373: 374: 375: