1: # The LearningOnline Network
2: # Printout
3: #
4: # $Id: lonprintout.pm,v 1.14 2002/02/21 04:12:16 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: # (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>Printout:</h1><br></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"> Standard LaTeX output for current document<br />
72: <input type="radio" name="choice" value="Standard LaTeX output for the primary sequence"> Standard LaTeX output for the primary sequence<br />
73: <input type="radio" name="choice" value="Standard LaTeX output for the top level sequence"> Standard LaTeX output for the top level sequence<br />
74: <input type="submit" value="Please make a choice">
75: </form>
76: </body>
77: </html>
78: ENDMENUOUT
79: }
80:
81:
82: sub output_data {
83: my $r = shift;
84: $r->print(<<ENDPART);
85: <html>
86: <head>
87: <title>LON-CAPA output for printing</title>
88: </head>
89: <body bgcolor="FFFFFF">
90: <hr>
91: ENDPART
92:
93: my $choice = $ENV{'form.choice'};
94: my $result = '';
95: my %mystyle;
96: my $filename;
97:
98: if ($choice eq 'Standard LaTeX output for current document') {
99: my %moreenv;
100: my $currequest=$ENV{'request.filename'};
101: $moreenv{'form.grade_target'}='tex';
102: $moreenv{'request.filename'}=$ENV{'form.url'};
103: &Apache::lonnet::appenv(%moreenv);
104: my $texversion=&Apache::lonnet::ssi($ENV{'form.url'});
105: &Apache::lonnet::delenv('form.grade_target');
106: %moreenv = ();
107: $moreenv{'request.filename'}=$currequest;
108: &Apache::lonnet::appenv(%moreenv);
109: $texversion =~ s!\.gif!\.eps!;
110: $result .= $texversion;
111: } elsif ($choice eq 'Standard LaTeX output for the primary sequence') {
112: my @master_seq = ();
113: my $keyword = 0;
114: my $output_seq = '';
115: my $current_file = '/res/'.$ENV{'request.ambiguous'};
116: $current_file =~ s/(\/res\/physnet\/physnet)(\/m\d+)\/(.*)/$1$2$2\.sequence/;
117: while ($current_file ne '') {
118: my $file=&Apache::lonnet::filelocation("",$current_file);
119: my $filecontents=&Apache::lonnet::getfile($file);
120: my @file_seq = &content_map($filecontents);
121: if (defined @file_seq) {
122: #-- adding an additional array to the master one
123: if (defined @master_seq) {
124: my $old_value = $#master_seq;
125: my $total_value = $#master_seq + $#file_seq +2;
126: for (my $j=0; $j<=$old_value-$keyword+1; $j++) {
127: $master_seq[$total_value-$j] = $master_seq[$old_value-$j];
128: }
129: for (my $j=0; $j<=$#file_seq; $j++){
130: $master_seq[$keyword+$j] = $file_seq[$j];
131: }
132: @file_seq = ();
133: $keyword = 0;
134: } else {
135: @master_seq = @file_seq;
136: @file_seq = ();
137: }
138: }
139: #-- checking wether .sequence file is among the set of files
140: $current_file = '';
141: for (my $i=0; $i<=$#file_seq; $i++) {
142: $_ = $file_seq[$i];
143: if (m/(.*)\.sequence/) {
144: $current_file = $_;
145: $keyword = $i;
146: last;
147: }
148: }
149: }
150: #-- produce an output string
151: for (my $i=0;$i<=$#master_seq;$i++) {
152: $_ = $master_seq[$i];
153: m/\"(.*)\"/;
154: if (index($1,'-tc.xml',0)==-1) {
155: my $file=&Apache::lonnet::filelocation("",$1);
156: my $filecontents=&Apache::lonnet::getfile($file);
157: $output_seq .= $filecontents;
158: }
159: }
160: #-- cleanup of output string (temporary cbi-specific)
161: $output_seq =~ s/<physnet>//g;
162: $output_seq =~ s/<\/physnet>//g;
163: $output_seq = '<physnet>'.$output_seq.' </physnet>';
164: #-- final accord
165: $result = &Apache::lonxml::xmlparse('tex',$output_seq,'',%mystyle);
166: } elsif ($choice eq 'Standard LaTeX output for the top level sequence') {
167:
168: #-- where is the main sequence of the course?
169:
170: my @master_seq = ();
171: my $keyword = 0;
172: my $output_seq = '';
173:
174: my $main_seq = '/res/'.$ENV{'request.course.uri'};
175: my $file=&Apache::lonnet::filelocation("",$main_seq);
176: my $filecontents=&Apache::lonnet::getfile($file);
177: my @file_seq = &content_map($filecontents);
178:
179: #-- temporary solution (without sequence inside sequence) - have to be generalized
180:
181:
182:
183:
184: # if (defined @master_seq) {
185: # my $old_value = $#master_seq;
186: # my $total_value = $#master_seq + $#file_seq +2;
187: # for (my $j=0; $j<=$old_value-$keyword+1; $j++) {
188: # $master_seq[$total_value-$j] = $master_seq[$old_value-$j];
189: # }
190: # for (my $j=0; $j<=$#file_seq; $j++){
191: # $master_seq[$keyword+$j] = $file_seq[$j];
192: # }
193: # @file_seq = ();
194: # $keyword = 0;
195: # } else {
196: @master_seq = @file_seq;
197: # @file_seq = ();
198: # }
199:
200: #-- checking wether .sequence file is among the set of files
201: # my $current_file = '';
202: # for (my $i=0; $i<=$#file_seq; $i++) {
203: # $_ = $file_seq[$i];
204: # if (m/(.*)\.sequence/) {
205: # $current_file = $_;
206: # $keyword = $i;
207: # last;
208: # }
209: # }
210:
211: #-- produce an output string
212: for (my $i=0;$i<=$#master_seq;$i++) {
213: $_ = $master_seq[$i];
214: m/\"(.*)\"/;
215: $_ = $1;
216: my $urlp = $1;
217: if (/\.problem/) {
218: my %moreenv;
219: $moreenv{'form.grade_target'}='tex';
220: &Apache::lonnet::appenv(%moreenv);
221: my $texversion=&Apache::lonnet::ssi($urlp);
222: &Apache::lonnet::delenv('form.grade_target');
223: $texversion =~ s!\.gif!\.eps!;
224: $result .= $texversion;
225: }
226: }
227: #-- additional cleanup for output
228: my $first_app = index($result,'\documentclass',0);
229: $first_app = index($result,'\documentclass',$first_app+5);
230: while ($first_app != -1) {
231: my $second_app = index($result,'begin{document}',$first_app);
232: $first_app = rindex($result,'\end{document}',$first_app);
233: substr($result,$first_app,$second_app-$first_app+15) = '\vskip 7 mm';
234: $first_app = index($result,'\documentclass',$first_app+5);
235: }
236: }
237: #-- writing .tex file in prtspool
238: {
239: my $temp_file;
240: $filename = "/home/httpd/prtspool/$ENV{'environment.firstname'}$ENV{'environment.lastname'}temp$ENV{'user.login.time'}.tex";
241: unless ($temp_file = Apache::File->new('>'.$filename)) {
242: $r->log_error("Couldn't open $filename for output $!");
243: return SERVER_ERROR;
244: }
245: print $temp_file $result;
246: }
247: $r->print(<<FINALEND);
248: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename">
249: </body>
250: </html>
251: FINALEND
252: }
253:
254:
255:
256:
257: sub content_map {
258: #-- find a list of files to print
259: my $map_string = shift;
260: my @number_seq = ();
261: my @file_seq = ();
262: my $startlink = index($map_string,'<link',0);
263: my $endlink = index($map_string,'</link>',$startlink);
264: my $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
265: $_ = $chunk;
266: m/from=\"(\d+)\"/;
267: push @number_seq,$1;
268: while ($startlink != -1) {
269: $endlink = index($map_string,'</link>',$startlink);
270: $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
271: substr($map_string,$startlink,$endlink-$startlink+7) = '';
272: $_ = $chunk;
273: m/to=\"(\d+)\"/;
274: push @number_seq,$1;
275: $startlink = index($map_string,'from="'.$1.'"',$startlink);
276: }
277: my $stalink = index($map_string,' to="'.$number_seq[0].'"',$startlink);
278: while ($stalink != -1) {
279: $startlink = rindex($map_string,'<link ',$stalink);
280: $endlink = index($map_string,'</link>',$startlink);
281: $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
282: substr($map_string,$startlink,$endlink-$startlink+7) = '';
283: $_ = $chunk;
284: m/from=\"(\d+)\"/;
285: unshift @number_seq,$1;
286: $stalink = index($map_string,' to="'.$number_seq[0].'"',0);
287: }
288: for (my $i=0;$i<=$#number_seq;$i++) {
289: $stalink = index($map_string,' id="'.$number_seq[$i].'"',0);
290: {
291: my $ahed1 = index($map_string,'src="',$stalink);
292: my $ahed2 = index($map_string,'</resource>',$stalink);
293: if ($ahed1 != -1) {
294: if ($ahed1 < $ahed2) {
295: $startlink = $ahed1;
296: } else {
297: $startlink = rindex($map_string,'src="',$stalink);
298: }
299: } else {
300: $startlink = rindex($map_string,'src="',$stalink);
301: }
302:
303: }
304: $startlink = index($map_string,'"',$startlink);
305: $endlink = index($map_string,'"',$startlink+1);
306: $chunk = substr($map_string,$startlink,$endlink-$startlink+1);
307: push @file_seq,$chunk;
308: }
309: return @file_seq;
310: }
311:
312:
313:
314: sub handler {
315:
316: my $r = shift;
317: $r->content_type('text/html');
318: $r->send_http_header;
319:
320: #-- start form
321: &headerform($r);
322: #-- menu for output
323: unless ($ENV{'form.phase'}) {
324: &menu_for_output($r);
325: }
326: #-- core part
327: if ($ENV{'form.phase'} eq 'two') {
328: &output_data($r);
329:
330: }
331: return OK;
332:
333: }
334:
335: 1;
336: __END__
337:
338:
339:
340:
341: #### Test block
342: # my $ere;
343: # foreach $ere (%ENV) {
344: # $result .= ' SS '.$ere.' => '.$ENV{$ere}.' FF '."\n\n";
345: # }
346: ####
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