1: # The LearningOnline Network
2: # Printout
3: #
4: # $Id: lonprintout.pm,v 1.12 2002/01/11 17:06:56 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::File();
47:
48:
49:
50: sub headerform {
51: my $r = shift;
52: $r->print(<<ENDHEADER);
53: <html>
54: <head>
55: <title>LON-CAPA output for printing</title>
56: </head>
57: <body bgcolor="FFFFFF">
58: <form method="post" enctype="multipart/form-data" action="/adm/printout" name="printform">
59: <h1>Printout:</h1><br></br>
60: ENDHEADER
61: }
62:
63:
64: sub menu_for_output {
65: my $r = shift;
66: $r->print(<<ENDMENUOUT);
67: <input type="hidden" name="phase" value="two">
68: <input type="hidden" name="url" value="$ENV{'form.postdata'}">
69: <input type="radio" name="choice" value="Standard LaTeX output for current document"> Standard LaTeX output for current document<br />
70: <input type="radio" name="choice" value="Standard LaTeX output for the primary sequence"> Standard LaTeX output for the primary sequence<br />
71: <input type="radio" name="choice" value="Standard LaTeX output for the top level sequence"> Standard LaTeX output for the top level sequence<br />
72: <input type="submit" value="Please make a choice">
73: </form>
74: </body>
75: </html>
76: ENDMENUOUT
77: }
78:
79:
80: sub output_data {
81: my $r = shift;
82: $r->print(<<ENDPART);
83: <html>
84: <head>
85: <title>LON-CAPA output for printing</title>
86: </head>
87: <body bgcolor="FFFFFF">
88: <hr>
89: ENDPART
90:
91: my $choice = $ENV{'form.choice'};
92: my $result = '';
93: my %mystyle;
94: my $filename;
95:
96: if ($choice eq 'Standard LaTeX output for current document') {
97: my $access=&Apache::lonnet::allowed('bre',$ENV{'form.url'});
98: if (($access ne '2') && ($access ne 'F')) {
99: $ENV{'user.error.msg'}="$ENV{'form.url'}:bre:1:1:Access Denied";
100: return HTTP_NOT_ACCEPTABLE;
101: }
102: my $file=&Apache::lonnet::filelocation("",$ENV{'form.url'});
103: my $filecontents=&Apache::lonnet::getfile($file);
104: $_ = $file;
105: if (/\.problem/) {
106: my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm');
107: if ($default == -1) {
108: &Apache::lonxml::error("<b>Unable to find <i>default_homework.lcpm</i></b>");
109: $default='';
110: }
111: $result = &Apache::lonxml::xmlparse('tex', $filecontents,$default.&Apache::lonhomework::setup_vars('tex'),%mystyle);
112:
113:
114: } else {
115: $result = &Apache::lonxml::xmlparse('tex',$filecontents,'',%mystyle);
116: }
117:
118:
119:
120:
121:
122:
123: # my $ere;
124: # foreach $ere (%ENV) {
125: # $result .= ' SS '.$ere.' => '.$ENV{$ere}.' FF '."\n\n";
126: # }
127: } elsif ($choice eq 'Standard LaTeX output for the primary sequence') {
128: my @master_seq = ();
129: my $keyword = 0;
130: my $output_seq = '';
131: my $current_file = '/res/'.$ENV{'request.ambiguous'};
132: $current_file =~ s/(\/res\/physnet\/physnet)(\/m\d+)\/(.*)/$1$2$2\.sequence/;
133: while ($current_file ne '') {
134: my $file=&Apache::lonnet::filelocation("",$current_file);
135: my $filecontents=&Apache::lonnet::getfile($file);
136: my @file_seq = &content_map($filecontents);
137: if (defined @file_seq) {
138: #-- adding an additional array to the master one
139: if (defined @master_seq) {
140: my $old_value = $#master_seq;
141: my $total_value = $#master_seq + $#file_seq +2;
142: for (my $j=0; $j<=$old_value-$keyword+1; $j++) {
143: $master_seq[$total_value-$j] = $master_seq[$old_value-$j];
144: }
145: for (my $j=0; $j<=$#file_seq; $j++){
146: $master_seq[$keyword+$j] = $file_seq[$j];
147: }
148: @file_seq = ();
149: $keyword = 0;
150: } else {
151: @master_seq = @file_seq;
152: @file_seq = ();
153: }
154: }
155: #-- checking wether .sequence file is among the set of files
156: $current_file = '';
157: for (my $i=0; $i<=$#file_seq; $i++) {
158: $_ = $file_seq[$i];
159: if (m/(.*)\.sequence/) {
160: $current_file = $_;
161: $keyword = $i;
162: last;
163: }
164: }
165: }
166: #-- produce an output string
167: for (my $i=0;$i<=$#master_seq;$i++) {
168: $_ = $master_seq[$i];
169: m/\"(.*)\"/;
170: if (index($1,'-tc.xml',0)==-1) {
171: my $file=&Apache::lonnet::filelocation("",$1);
172: my $filecontents=&Apache::lonnet::getfile($file);
173: $output_seq .= $filecontents;
174: }
175: }
176: #-- cleanup of output string (temporary cbi-specific)
177: $output_seq =~ s/<physnet>//g;
178: $output_seq =~ s/<\/physnet>//g;
179: $output_seq = '<physnet>'.$output_seq.' </physnet>';
180: #-- final accord
181: $result = &Apache::lonxml::xmlparse('tex',$output_seq,'',%mystyle);
182: }
183: #-- writing .tex file in prtspool
184: {
185: my $temp_file;
186: $filename = "/home/httpd/prtspool/$ENV{'environment.firstname'}$ENV{'environment.lastname'}temp$ENV{'user.login.time'}.tex";
187: unless ($temp_file = Apache::File->new('>'.$filename)) {
188: $r->log_error("Couldn't open $filename for output $!");
189: return SERVER_ERROR;
190: }
191: print $temp_file $result;
192: }
193: $r->print(<<FINALEND);
194: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename">
195: </body>
196: </html>
197: FINALEND
198: }
199:
200:
201:
202:
203: sub content_map {
204: #-- find a list of files to print
205: my $map_string = shift;
206: my @number_seq = ();
207: my @file_seq = ();
208: my $startlink = index($map_string,'<link',0);
209: my $endlink = index($map_string,'</link>',$startlink);
210: my $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
211: $_ = $chunk;
212: m/from=\"(\d+)\"/;
213: push @number_seq,$1;
214: while ($startlink != -1) {
215: $endlink = index($map_string,'</link>',$startlink);
216: $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
217: substr($map_string,$startlink,$endlink-$startlink+7) = '';
218: $_ = $chunk;
219: m/to=\"(\d+)\"/;
220: push @number_seq,$1;
221: $startlink = index($map_string,'<link from="'.$1.'"',$startlink);
222: }
223: my $stalink = index($map_string,' to="'.$number_seq[0].'"',$startlink);
224: while ($stalink != -1) {
225: $startlink = rindex($map_string,'<link ',$stalink);
226: $endlink = index($map_string,'</link>',$startlink);
227: $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
228: substr($map_string,$startlink,$endlink-$startlink+7) = '';
229: $_ = $chunk;
230: m/from=\"(\d+)\"/;
231: unshift @number_seq,$1;
232: $stalink = index($map_string,' to="'.$number_seq[0].'"',0);
233: }
234: for (my $i=0;$i<=$#number_seq;$i++) {
235: $stalink = index($map_string,' id="'.$number_seq[$i].'"',0);
236: $startlink = index($map_string,'src="',$stalink);
237: $startlink = index($map_string,'"',$startlink);
238: $endlink = index($map_string,'"',$startlink+1);
239: $chunk = substr($map_string,$startlink,$endlink-$startlink+1);
240: push @file_seq,$chunk;
241: }
242: return @file_seq;
243: }
244:
245:
246:
247: sub handler {
248:
249: my $r = shift;
250: $r->content_type('text/html');
251: $r->send_http_header;
252:
253: #-- start form
254: &headerform($r);
255: #-- menu for output
256: unless ($ENV{'form.phase'}) {
257: &menu_for_output($r);
258: }
259: #-- core part
260: if ($ENV{'form.phase'} eq 'two') {
261: &output_data($r);
262:
263: }
264: return OK;
265:
266: }
267:
268: 1;
269: __END__
270:
271:
272: # my $ere;
273: # foreach $ere (%ENV) {
274: # $r->print(' SS '.$ere.' => '.$ENV{$ere}.' FF '."\n\n");
275: # }
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