1: #!/usr/bin/perl
2: # CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc.
3: #
4: # $Id: printout.pl,v 1.54 2004/04/23 19:47:38 www 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,'inline'); }
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: unlink($figfile);
140: }
141: #print "$texfile\n"; #name of the tex file for debugging only
142: my @texfile=($texfile);
143: if ($number_of_files>1) {
144: @texfile=();
145: for (my $i=1;$i<=$number_of_files;$i++) {
146: my $new_texfile=$texfile;
147: $new_texfile=~s/\.tex/_$i\.tex/;
148: push @texfile,$new_texfile;
149: }
150: }
151:
152: my $ind=-1;
153: my %prog_state;
154: if ($adv) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status','Class Print Status',$number_of_files,'inline'); }
155: my $final_statement="<a href=\"$backref\"><b>Return</b></a> to last resource.<br /><br />Generated PDF File for:<br />";
156: foreach $texfile (@texfile) {
157: my $status_statement='';
158: my $link_text='download PDF';
159: $ind++;
160: my @stud_info=split(/_END_/,$names_pack[$ind]);
161: my @tempo_array=split(/:/,$stud_info[0]);
162: my $name;
163: if ($tempo_array[3]) {
164: $name=$tempo_array[3];
165: } else {
166: $name=$tempo_array[0].'@'.$tempo_array[1];
167: }
168: $link_text='<b>'.$name.'</b> ';
169: $status_statement.=$name;
170: if ($#stud_info>0) {
171: @tempo_array=split(/:/,$stud_info[-1]);
172: if ($tempo_array[3]) {
173: $name=$tempo_array[3];
174: } else {
175: $name=$tempo_array[0].'@'.$tempo_array[1];
176: }
177: $link_text.='- <b>'.$name.':</b> ';
178: $status_statement.=' - '.$name;
179: }
180: if ($adv) { &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Creating PDF for '.$status_statement); }
181: if (-e $texfile) {
182: $texfile =~ m/^(.*)\/([^\/]+)$/;
183: my $name_file = $2;
184: my $path_file = $1.'/';
185: chdir $path_file;
186: system("latex $name_file 1>/dev/null 2>/dev/null");
187: if ($tableofcontents eq 'yes') {
188: system("latex $name_file 1>/dev/null 2>/dev/null");
189: } #to create table of contents
190: my $idxname=$name_file;
191: $idxname=~s/\.tex$/\.idx/;
192: if ($tableofindex eq 'yes') {
193: system("makeindex $idxname");
194: system("latex $name_file 1>/dev/null 2>/dev/null");
195: } #to create index
196: #Do we have a latex error in the log file?
197: my $logfilename = $texfile;
198: $logfilename =~ s/\.tex$/\.log/;
199: my $temporary_file=IO::File->new($logfilename) || die "Couldn't open file for reading: $!\n";
200: my @content_of_file = <$temporary_file>;
201: close $temporary_file;
202: my $body_log_file = join(' ',@content_of_file);
203: $logfilename =~ s/\.log$/\.html/;
204: $temporary_file = IO::File->new('>'.$logfilename);
205: print $temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_log_file.'</pre></body></html>'."\n";
206: if ($body_log_file=~m/!\s+Emergency stop/) {
207: #LaTeX failed to parse tex file
208: print "<h2>LaTeX could not successfully parse your tex file.</h2>";
209: print "It probably has errors in it.<br />";
210: my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
211: my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
212: if ($whereitbegins!=-1 and $whereitends!=-1) {
213: print "With very high probability this error occured in ".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)."<br /><br />";
214: }
215: print "Here are the error messages in the LaTeX log file</br><br />";
216: my $sygnal = 0;
217: for (my $i=0;$i<=$#content_of_file;$i++) {
218: if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$i]=~m/^!/) {
219: $sygnal = 1;
220: }
221: if ($content_of_file[$i]=~m/Here is how much of/) {
222: $sygnal = 0;
223: }
224: if ($sygnal) {
225: print "$content_of_file[$i]<br />";
226: }
227: }
228: if ($advans_role) {
229: print "<b><big>The link to ";
230: $logfilename=~s/\/home\/httpd//;
231: print "<a href=\"$logfilename\">Your log file </a></big></b>";
232: print "\n";
233: #link tooriginal LaTeX file (included according Michael Hamlin desire)
234: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open file for reading: $!\n";
235: my @tex_content_of_file = <$tex_temporary_file>;
236: close $tex_temporary_file;
237: my $body_tex_file = join(' ',@tex_content_of_file);
238: $texfile =~ s/\.tex$/aaaaa\.html/;
239: $tex_temporary_file = IO::File->new('>'.$texfile);
240: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
241: print "<br /><br />";
242: print "<b><big>The link to ";
243: $texfile=~s/\/home\/httpd//;
244: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
245: print "\n";
246: }
247:
248: } elsif ($body_log_file=~m/<inserted text>/) {
249: my $whereitbegins = index $body_log_file,'<inserted text>';
250: print "You are running LaTeX in the <b>batch mode</b>.";
251: while ($whereitbegins != -1) {
252: my $tempobegin=$whereitbegins;
253: $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART',$whereitbegins;
254: my $whereitends = index $body_log_file,'STAMPOFPASSEDRESOURCEEND',$whereitbegins;
255: print "<br />It has found an error in".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)." <br /> and corrected it.\n";
256: 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";
257: $whereitbegins = index $body_log_file,'<inserted text>',$tempobegin+10;
258: }
259: $name_file =~ s/\.tex/\.dvi/;
260: my $new_name_file = $name_file;
261: $new_name_file =~ s/\.dvi/\.ps/;
262: my $comma = "dvips -Ppdf -G0 -o $new_name_file";
263: system("$comma $name_file 1>/dev/null 2>/dev/null");
264: if (-e $new_name_file) {
265: print "<h1>PDF output file (see link below)</h1>\n";
266: $new_name_file =~ m/^(.*)\./;
267: my $tempo_file = $1.'temporar.ps';
268: my $name_file = $1.'.pdf';
269: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
270: $comma = "psnup -2 -s1.0 $new_name_file";
271: system("$comma $tempo_file 1>/dev/null 2>/dev/null");
272: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
273: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
274: $comma = 'pstops -pletter "2:0+1(0.48w,0)"';
275: system("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null");
276: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
277: } else {
278: system("ps2pdf $new_name_file $name_file 1>/dev/null 2>/dev/null");
279: }
280: my $texlog = $texfile;
281: my $texaux = $texfile;
282: my $texdvi = $texfile;
283: my $texps = $texfile;
284: $texlog =~ s/\.tex/\.log/;
285: $texaux =~ s/\.tex/\.aux/;
286: $texdvi =~ s/\.tex/\.dvi/;
287: $texps =~ s/\.tex/\.ps/;
288: my @garb = ($texaux,$texdvi,$texps);
289: # unlink @garb;
290: unlink $duefile;
291: print "<a href=\"/prtspool/$name_file\">Your PDF document</a>";
292: if ($advans_role) {
293: print "<br /><br />";
294: print "<b><big>The link to ";
295: $logfilename=~s/\/home\/httpd//;
296: print "<a href=\"$logfilename\">Your log file </a></big></b>";
297: print "\n";
298: #link tooriginal LaTeX file (included according Michael Hamlin desire)
299: my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open file for reading: $!\n";
300: my @tex_content_of_file = <$tex_temporary_file>;
301: close $tex_temporary_file;
302: my $body_tex_file = join(' ',@tex_content_of_file);
303: $texfile =~ s/\.tex$/aaaaa\.html/;
304: $tex_temporary_file = IO::File->new('>'.$texfile);
305: print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
306: print "<br /><br />";
307: print "<b><big>The link to ";
308: $texfile=~s/\/home\/httpd//;
309: print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
310: print "\n";
311: }
312: }
313: } else {
314: #LaTeX successfully parsed tex file
315: $name_file =~ s/\.tex/\.dvi/;
316: my $new_name_file = $name_file;
317: $new_name_file =~ s/\.dvi/\.ps/;
318: my $comma = "dvips -Ppdf -G0 -o $new_name_file";
319: system("$comma $name_file 1>/dev/null 2>/dev/null");
320: if (-e $new_name_file) {
321: print "<br />$final_statement ";
322: $final_statement='';
323: $new_name_file =~ m/^(.*)\./;
324: my $tempo_file = $1.'temporar.ps';
325: my $name_file = $1.'.pdf';
326: if ($laystyle eq 'album' and $numberofcolumns eq '2') {
327: $comma = "psnup -2 -s1.0 $new_name_file";
328: system("$comma $tempo_file 1>/dev/null 2>/dev/null");
329: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
330: } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
331: $comma = 'pstops -pletter "2:0+1(0.48w,0)"';
332: system("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null");
333: system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
334: } else {
335: system("ps2pdf $new_name_file $name_file 1>/dev/null 2>/dev/null");
336: }
337: my $texlog = $texfile;
338: my $texaux = $texfile;
339: my $texdvi = $texfile;
340: my $texps = $texfile;
341: $texlog =~ s/\.tex/\.log/;
342: $texaux =~ s/\.tex/\.aux/;
343: $texdvi =~ s/\.tex/\.dvi/;
344: $texps =~ s/\.tex/\.ps/;
345: my @garb = ($texlog,$texaux,$texdvi,$texps);
346: # unlink @garb;
347: unlink $duefile;
348: print "<a href=\"/prtspool/$name_file\">$link_text</a>";
349: print "\n";
350: }
351: }
352: } else {
353: print "LaTeX file $texfile was not created successfully";
354: }
355: }
356: print "<br />";
357: if ($number_of_files>1) {
358: my $zipfile=$texfile[0];
359: $zipfile=~s/\.tex/\.zip/;
360: my $statement="zip $zipfile";
361: foreach my $file (@texfile) {
362: $file=~s/\.tex/.\pdf/;
363: $statement.=' '.$file;
364: }
365: print("<pre>Zip Output:\n");
366: system($statement);
367: print("</pre>");
368: $zipfile=~s/\/home\/httpd//;
369: print "<br /> A <a href=\"$zipfile\">ZIP file</a> of all the PDFs.";
370: }
371: if ($adv) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
372:
373:
374:
375:
376:
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