1: # The LearningOnline Network
2: # Printout
3: #
4: # $Id: lonprintout.pm,v 1.19 2002/03/21 18:46:15 sakharuk 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: # (Internal Server Error Handler
29: #
30: # (Login Screen
31: # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14,
32: # 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9 Gerd Kortemeyer)
33: #
34: # 3/1/1 Gerd Kortemeyer)
35: #
36: # 3/1 Gerd Kortemeyer
37: #
38: # 9/17 Alex Sakharuk
39: #
40: package Apache::lonprintout;
41:
42: use strict;
43: use Apache::Constants qw(:common :http);
44: use Apache::lonxml;
45: use Apache::lonnet;
46: use Apache::inputtags;
47: use Apache::edit;
48: use Apache::File();
49:
50:
51:
52: sub headerform {
53: my $r = shift;
54: $r->print(<<ENDHEADER);
55: <html>
56: <head>
57: <title>LON-CAPA output for printing</title>
58: </head>
59: <body bgcolor="FFFFFF">
60: <form method="post" enctype="multipart/form-data" action="/adm/printout" name="printform">
61: <h1>What do you want to print? Make a choice.</h1><br />
62: ENDHEADER
63: }
64:
65:
66: sub menu_for_output {
67: my $r = shift;
68: $r->print(<<ENDMENUOUT);
69: <input type="hidden" name="phase" value="two">
70: <input type="hidden" name="url" value="$ENV{'form.postdata'}">
71: <input type="radio" name="choice" value="Standard LaTeX output for current document"> Current document
72: (you will print what you see on the screen)<br />
73: <input type="radio" name="choice" value="Standard LaTeX output for the primary sequence"> All problems from the primary sequence<br />
74: <input type="radio" name="choice" value="Standard LaTeX output for the top level sequence"> All problems from the top level sequence<br />
75: <br /><hr /><br />
76: <h1>And what page format do you prefer?</h1>
77: <input type="radio" name="layout" value="CBI" checked> CBI <br />
78: <input type="radio" name="layout" value="CAPA"> CAPA <br />
79: <input type="submit" value="Submit your choice">
80: </form>
81: </body>
82: </html>
83: ENDMENUOUT
84: }
85:
86:
87:
88:
89: sub output_data {
90: my $r = shift;
91: $r->print(<<ENDPART);
92: <html>
93: <head>
94: <title>LON-CAPA output for printing</title>
95: </head>
96: <body bgcolor="FFFFFF">
97: <hr>
98: ENDPART
99:
100: my $choice = $ENV{'form.choice'};
101: my $layout = $ENV{'form.layout'};
102: my $laystyle = 'book';
103: my $result = '';
104: my %mystyle;
105: my $filename;
106:
107: if ($choice eq 'Standard LaTeX output for current document') {
108: my %moreenv;
109: my $currequest=$ENV{'request.filename'};
110: $moreenv{'form.grade_target'}='tex';
111: $moreenv{'request.filename'}=$ENV{'form.url'};
112: &Apache::lonnet::appenv(%moreenv);
113: my $texversion=&Apache::lonnet::ssi($ENV{'form.url'});
114: &Apache::lonnet::delenv('form.grade_target');
115: %moreenv = ();
116: $moreenv{'request.filename'}=$currequest;
117: &Apache::lonnet::appenv(%moreenv);
118: $result .= $texversion;
119:
120: } elsif ($choice eq 'Standard LaTeX output for the primary sequence') {
121: #-- where is the primary sequence containing file?
122: my %moreenv;
123: my $symbolic = &Apache::lonnet::symbread($ENV{'form.url'});
124: $_ = $symbolic;
125: m/([^_]+)_/;
126: my $primary_sequence = '/res/'.$1;
127: #-- open and analyses the primary sequence
128: my $sequence_file=&Apache::lonnet::filelocation("",$primary_sequence);
129: my $sequencefilecontents=&Apache::lonnet::getfile($sequence_file);
130: my @master_seq = &content_map($sequencefilecontents);
131: #-- produce an output string
132: for (my $i=0;$i<=$#master_seq;$i++) {
133: $_ = $master_seq[$i];
134: m/\"(.*)\"/;
135: $_ = $1;
136: my $urlp = $1;
137: if (/\.problem/) {
138: my %moreenv;
139: $moreenv{'form.grade_target'}='tex';
140: &Apache::lonnet::appenv(%moreenv);
141: my $texversion=&Apache::lonnet::ssi($urlp);
142: &Apache::lonnet::delenv('form.grade_target');
143: $texversion =~ s!\.gif!\.eps!;
144: $result .= $texversion;
145: }
146: }
147: #-- additional cleanup for output
148: my $first_app = index($result,'\documentclass',0);
149: $first_app = index($result,'\documentclass',$first_app+5);
150: while ($first_app != -1) {
151: my $second_app = index($result,'begin{document}',$first_app);
152: $first_app = rindex($result,'\end{document}',$first_app);
153: substr($result,$first_app,$second_app-$first_app+15) = '\vskip 7 mm';
154: $first_app = index($result,'\documentclass',$first_app+5);
155: }
156: } elsif ($choice eq 'Standard LaTeX output for the top level sequence') {
157: my @master_seq = ();
158: my @add_file_seq = ();
159: #-- where is the main sequence of the course?
160: my $main_seq = '/res/'.$ENV{'request.course.uri'};
161: my $file=&Apache::lonnet::filelocation("",$main_seq);
162: my $filecontents=&Apache::lonnet::getfile($file);
163: my @file_seq = &content_map($filecontents);
164: #-- do we have any other sequence inside?
165: my $i=0;
166: while ($i<=$#file_seq) {
167: $_ = $file_seq[$i];
168: if (/\.sequence$/) {
169: $file = &Apache::lonnet::filelocation("",$file_seq[$i]);
170: $filecontents=&Apache::lonnet::getfile($file);
171: @add_file_seq = &content_map($filecontents);
172: splice(@file_seq,$i,1,@add_file_seq);
173: @add_file_seq = ();
174: $i = -1;
175: }
176: $i++;
177: }
178: @master_seq = @file_seq;
179: #-- produce an output string
180: for (my $i=0;$i<=$#master_seq;$i++) {
181: $_ = $master_seq[$i];
182: m/\"(.*)\"/;
183: $_ = $1;
184: my $urlp = $1;
185: if (/\.problem/) {
186: my %moreenv;
187: $moreenv{'form.grade_target'}='tex';
188: &Apache::lonnet::appenv(%moreenv);
189: my $texversion=&Apache::lonnet::ssi($urlp);
190: &Apache::lonnet::delenv('form.grade_target');
191: $texversion =~ s!\.gif!\.eps!;
192: $result .= $texversion;
193: }
194: }
195: #-- additional cleanup for output
196: my $first_app = index($result,'\documentclass',0);
197: $first_app = index($result,'\documentclass',$first_app+5);
198: while ($first_app != -1) {
199: my $second_app = index($result,'begin{document}',$first_app);
200: $first_app = rindex($result,'\end{document}',$first_app);
201: substr($result,$first_app,$second_app-$first_app+15) = '\vskip 7 mm';
202: $first_app = index($result,'\documentclass',$first_app+5);
203: }
204: }
205: #-- corrections for the different page formats
206: if ($layout eq 'CBI') {
207: $result =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{-40pt}\\setlength{\\evensidemargin}{-60pt}\\setlength{\\topmargin}{200pt}\\setlength{\\textwidth}{4\.4in}\\setlength{\\textheight}{6\.8in}\\setlength{\\parindent}{20pt}\\setlength{\\marginparwidth}{90pt}\\setlength{\\textfloatsep}{8pt plus 2\.0pt minus 4\.0pt} \\begin{document}/;
208: $laystyle = 'album';
209: } elsif ($layout eq 'CAPA') {
210: my $courseidinfo = $ENV{'request.role'};
211: $_ = $courseidinfo;
212: m/.*\/(.*)/;
213: $courseidinfo = $ENV{'course.physnet_'.$1.'.description'};
214: $result =~ s/\\documentclass\[letterpaper\]{article}/\\documentclass\[twocolumn\]{article}/;
215: $result =~ s/\\begin{document}/\\textheight 25\.9cm\\oddsidemargin = -0\.57in\\evensidemargin = -0\.57in\\textwidth= 7\.7in\\begin{document}\\voffset=-1\.8cm\\setcounter{page}{1}\\noindent\\fbox{\\textbf{$ENV{'environment.firstname'} $ENV{'environment.lastname'}}}\\hskip 1\.4in $courseidinfo \\vskip 5 mm /;
216: $result =~ s/\\includegraphics/\\includegraphics\[width=9\.0 cm\]/g;
217: }
218: #-- LaTeX corrections
219: $result =~ s/^\s+$//gm; #remove empty lines
220: $result =~ s/%/\\%/g; #corrects %
221: #-- writing .tex file in prtspool
222: my $temp_file;
223: $filename = "/home/httpd/prtspool/$ENV{'environment.firstname'}$ENV{'environment.lastname'}temp$ENV{'user.login.time'}.tex";
224: unless ($temp_file = Apache::File->new('>'.$filename)) {
225: $r->log_error("Couldn't open $filename for output $!");
226: return SERVER_ERROR;
227: }
228: print $temp_file $result;
229: $r->print(<<FINALEND);
230: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename&$laystyle">
231: </body>
232: </html>
233: FINALEND
234: }
235:
236:
237:
238:
239: sub content_map {
240: #-- find a list of files to print
241: my $map_string = shift;
242: my @number_seq = ();
243: my @file_seq = ();
244: my $startlink = index($map_string,'<link',0);
245: my $endlink = index($map_string,'</link>',$startlink);
246: my $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
247: $_ = $chunk;
248: m/from=\"(\d+)\"/;
249: push @number_seq,$1;
250: while ($startlink != -1) {
251: $endlink = index($map_string,'</link>',$startlink);
252: $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
253: substr($map_string,$startlink,$endlink-$startlink+7) = '';
254: $_ = $chunk;
255: m/to=\"(\d+)\"/;
256: push @number_seq,$1;
257: $startlink = index($map_string,'from="'.$1.'"',$startlink);
258: $startlink = rindex($map_string,'<link ',$startlink);
259: }
260: my $stalink = index($map_string,' to="'.$number_seq[0].'"',$startlink);
261: while ($stalink != -1) {
262: $startlink = rindex($map_string,'<link ',$stalink);
263: $endlink = index($map_string,'</link>',$startlink);
264: $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
265: substr($map_string,$startlink,$endlink-$startlink+7) = '';
266: $_ = $chunk;
267: m/from=\"(\d+)\"/;
268: unshift @number_seq,$1;
269: $stalink = index($map_string,' to="'.$number_seq[0].'"',0);
270: }
271: for (my $i=0;$i<=$#number_seq;$i++) {
272: $stalink = index($map_string,' id="'.$number_seq[$i].'"',0);
273: {
274: my $ahed1 = index($map_string,'src="',$stalink);
275: my $ahed2 = index($map_string,'</resource>',$stalink);
276: if ($ahed1 != -1) {
277: if ($ahed1 < $ahed2) {
278: $startlink = $ahed1;
279: } else {
280: $startlink = rindex($map_string,'src="',$stalink);
281: }
282: } else {
283: $startlink = rindex($map_string,'src="',$stalink);
284: }
285:
286: }
287: $startlink = index($map_string,'"',$startlink);
288: $endlink = index($map_string,'"',$startlink+1);
289: $chunk = substr($map_string,$startlink,$endlink-$startlink+1);
290: push @file_seq,$chunk;
291: }
292: return @file_seq;
293: }
294:
295:
296:
297: sub handler {
298:
299: my $r = shift;
300: $r->content_type('text/html');
301: $r->send_http_header;
302:
303: #-- start form
304: &headerform($r);
305: #-- menu for output
306: unless ($ENV{'form.phase'}) {
307: &menu_for_output($r);
308: }
309:
310:
311: #-- core part
312: if ($ENV{'form.phase'} eq 'two') {
313: &output_data($r);
314:
315: }
316: return OK;
317:
318: }
319:
320: 1;
321: __END__
322:
323:
324:
325:
326: #### Test block
327: # my $ere;
328: # foreach $ere (%ENV) {
329: # $result .= ' SS '.$ere.' => '.$ENV{$ere}.' FF '."\n\n";
330: # }
331: ####
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