1: # The LearningOnline Network
2: # Printout
3: #
4: # $Id: lonprintout.pm,v 1.20 2002/04/01 18:23:12 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 whole primary sequence"> The whole primary sequence (problems plus all html and xml files)<br />
75: <input type="radio" name="choice" value="Standard LaTeX output for the top level sequence"> All problems from the top level sequence<br />
76: <br /><hr /><br />
77: <h1>And what page format do you prefer?</h1>
78: <input type="radio" name="layout" value="CBI" checked> CBI <br />
79: <input type="radio" name="layout" value="CAPA"> CAPA <br />
80: <input type="submit" value="Submit your choice">
81: </form>
82: </body>
83: </html>
84: ENDMENUOUT
85: }
86:
87:
88:
89:
90: sub output_data {
91: my $r = shift;
92: $r->print(<<ENDPART);
93: <html>
94: <head>
95: <title>LON-CAPA output for printing</title>
96: </head>
97: <body bgcolor="FFFFFF">
98: <hr>
99: ENDPART
100:
101: my $choice = $ENV{'form.choice'};
102: my $layout = $ENV{'form.layout'};
103: my $laystyle = 'book';
104: my $result = '';
105: my %mystyle;
106: my $filename;
107:
108: if ($choice eq 'Standard LaTeX output for current document') {
109: my %moreenv;
110: my $currequest=$ENV{'request.filename'};
111: $moreenv{'form.grade_target'}='tex';
112: $moreenv{'request.filename'}=$ENV{'form.url'};
113: &Apache::lonnet::appenv(%moreenv);
114: my $texversion=&Apache::lonnet::ssi($ENV{'form.url'});
115: &Apache::lonnet::delenv('form.grade_target');
116: %moreenv = ();
117: $moreenv{'request.filename'}=$currequest;
118: &Apache::lonnet::appenv(%moreenv);
119: $result .= $texversion;
120:
121: } elsif ($choice eq 'Standard LaTeX output for the primary sequence' or $choice eq 'Standard LaTeX output for whole primary sequence') {
122: #-- where is the primary sequence containing file?
123: my %moreenv;
124: my $symbolic = &Apache::lonnet::symbread($ENV{'form.url'});
125: $_ = $symbolic;
126: m/([^_]+)_/;
127: my $primary_sequence = '/res/'.$1;
128: #-- open and analyses the primary sequence
129: my $sequence_file=&Apache::lonnet::filelocation("",$primary_sequence);
130: my $sequencefilecontents=&Apache::lonnet::getfile($sequence_file);
131: my @master_seq = &content_map($sequencefilecontents);
132: #-- produce an output string
133: for (my $i=0;$i<=$#master_seq;$i++) {
134: $_ = $master_seq[$i];
135: m/\"(.*)\"/;
136: $_ = $1;
137: my $urlp = $1;
138: if ($choice eq 'Standard LaTeX output for the primary sequence') {
139: if (/\.problem/) {
140: my %moreenv;
141: $moreenv{'form.grade_target'}='tex';
142: &Apache::lonnet::appenv(%moreenv);
143: my $texversion=&Apache::lonnet::ssi($urlp);
144: &Apache::lonnet::delenv('form.grade_target');
145: $texversion =~ s!\.gif!\.eps!g;
146: $result .= $texversion;
147: }
148: } else {
149: $moreenv{'form.grade_target'}='tex';
150: &Apache::lonnet::appenv(%moreenv);
151: my $texversion=&Apache::lonnet::ssi($urlp);
152: &Apache::lonnet::delenv('form.grade_target');
153: $texversion =~ s!\.gif!\.eps!g;
154: $result .= $texversion;
155: }
156: }
157: #-- additional cleanup for output
158: my $first_app = index($result,'\documentclass',0);
159: $first_app = index($result,'\documentclass',$first_app+5);
160: while ($first_app != -1) {
161: my $second_app = index($result,'begin{document}',$first_app);
162: $first_app = rindex($result,'\end{document}',$first_app);
163: substr($result,$first_app,$second_app-$first_app+15) = '\vskip 3 mm';
164: $first_app = index($result,'\documentclass',$first_app+5);
165: }
166: } elsif ($choice eq 'Standard LaTeX output for the top level sequence') {
167: my @master_seq = ();
168: my @add_file_seq = ();
169: #-- where is the main sequence of the course?
170: my $main_seq = '/res/'.$ENV{'request.course.uri'};
171: my $file=&Apache::lonnet::filelocation("",$main_seq);
172: my $filecontents=&Apache::lonnet::getfile($file);
173: my @file_seq = &content_map($filecontents);
174: #-- do we have any other sequence inside?
175: my $i=0;
176: while ($i<=$#file_seq) {
177: $_ = $file_seq[$i];
178: if (/\.sequence$/) {
179: $file = &Apache::lonnet::filelocation("",$file_seq[$i]);
180: $filecontents=&Apache::lonnet::getfile($file);
181: @add_file_seq = &content_map($filecontents);
182: splice(@file_seq,$i,1,@add_file_seq);
183: @add_file_seq = ();
184: $i = -1;
185: }
186: $i++;
187: }
188: @master_seq = @file_seq;
189: #-- produce an output string
190: for (my $i=0;$i<=$#master_seq;$i++) {
191: $_ = $master_seq[$i];
192: m/\"(.*)\"/;
193: $_ = $1;
194: my $urlp = $1;
195: if (/\.problem/) {
196: my %moreenv;
197: $moreenv{'form.grade_target'}='tex';
198: &Apache::lonnet::appenv(%moreenv);
199: my $texversion=&Apache::lonnet::ssi($urlp);
200: &Apache::lonnet::delenv('form.grade_target');
201: $texversion =~ s!\.gif!\.eps!;
202: $result .= $texversion;
203: }
204: }
205: #-- additional cleanup for output
206: my $first_app = index($result,'\documentclass',0);
207: $first_app = index($result,'\documentclass',$first_app+5);
208: while ($first_app != -1) {
209: my $second_app = index($result,'begin{document}',$first_app);
210: $first_app = rindex($result,'\end{document}',$first_app);
211: substr($result,$first_app,$second_app-$first_app+15) = '\vskip 3 mm';
212: $first_app = index($result,'\documentclass',$first_app+5);
213: }
214: }
215: #-- corrections for the different page formats
216: if ($layout eq 'CBI') {
217: $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}/;
218: $laystyle = 'album';
219: } elsif ($layout eq 'CAPA') {
220: my $courseidinfo = $ENV{'request.role'};
221: $_ = $courseidinfo;
222: m/.*\/(.*)/;
223: $courseidinfo = $ENV{'course.physnet_'.$1.'.description'};
224: $result =~ s/\\documentclass\[letterpaper\]{article}/\\documentclass\[twocolumn\]{article}/;
225: $result =~ s/\\begin{document}/\\textheight 25\.9cm\\oddsidemargin = -0\.57in\\evensidemargin = -0\.57in\\textwidth= 7\.7in\\begin{document}\\voffset=-1\.8cm\\setcounter{page}{1}\\noindent\\fbox{\\textbf{$ENV{'environment.firstname'} $ENV{'environment.lastname'}}}\\hskip 1\.4in $courseidinfo \\vskip 5 mm /;
226: $result =~ s/\\includegraphics/\\includegraphics\[width=9\.0 cm\]/g;
227: $result =~ s/(\\end{document})/\\newline\\noindent\\makebox\[9.0cm\]\[b\]{\\hrulefill}\\newline\\noindent\\tiny Dept\. of Physics and Astronomy, MSU\\makebox\[1.0cm\]\[b\]{\\hfill}LON-CAPA\\copyright MSU GNU\/GPS $1/;
228: }
229: #-- LaTeX corrections
230: $result =~ s/^\s+$//gm; #remove empty lines
231: $result =~ s/%/\\%/g; #corrects %
232: $result =~ s/(\s)+/$1/g; #removes more than one empty space
233: $result =~ s/\\\\\s*(\\vskip)/ $1/gm;
234: #-- writing .tex file in prtspool
235: my $temp_file;
236: $filename = "/home/httpd/prtspool/$ENV{'user.name'}$ENV{'user.domain'}temp$ENV{'user.login.time'}.tex";
237: unless ($temp_file = Apache::File->new('>'.$filename)) {
238: $r->log_error("Couldn't open $filename for output $!");
239: return SERVER_ERROR;
240: }
241: print $temp_file $result;
242: $r->print(<<FINALEND);
243: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename&$laystyle">
244: </body>
245: </html>
246: FINALEND
247: }
248:
249:
250:
251:
252: sub content_map {
253: #-- find a list of files to print
254: my $map_string = shift;
255: my @number_seq = ();
256: my @file_seq = ();
257: my $startlink = index($map_string,'<link',0);
258: my $endlink = index($map_string,'</link>',$startlink);
259: my $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
260: $_ = $chunk;
261: m/from=\"(\d+)\"/;
262: push @number_seq,$1;
263: while ($startlink != -1) {
264: $endlink = index($map_string,'</link>',$startlink);
265: $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
266: substr($map_string,$startlink,$endlink-$startlink+7) = '';
267: $_ = $chunk;
268: m/to=\"(\d+)\"/;
269: push @number_seq,$1;
270: $startlink = index($map_string,'from="'.$1.'"',$startlink);
271: $startlink = rindex($map_string,'<link ',$startlink);
272: }
273: my $stalink = index($map_string,' to="'.$number_seq[0].'"',$startlink);
274: while ($stalink != -1) {
275: $startlink = rindex($map_string,'<link ',$stalink);
276: $endlink = index($map_string,'</link>',$startlink);
277: $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
278: substr($map_string,$startlink,$endlink-$startlink+7) = '';
279: $_ = $chunk;
280: m/from=\"(\d+)\"/;
281: unshift @number_seq,$1;
282: $stalink = index($map_string,' to="'.$number_seq[0].'"',0);
283: }
284: for (my $i=0;$i<=$#number_seq;$i++) {
285: $stalink = index($map_string,' id="'.$number_seq[$i].'"',0);
286: {
287: my $ahed1 = index($map_string,'src="',$stalink);
288: my $ahed2 = index($map_string,'</resource>',$stalink);
289: if ($ahed1 != -1) {
290: if ($ahed1 < $ahed2) {
291: $startlink = $ahed1;
292: } else {
293: $startlink = rindex($map_string,'src="',$stalink);
294: }
295: } else {
296: $startlink = rindex($map_string,'src="',$stalink);
297: }
298:
299: }
300: $startlink = index($map_string,'"',$startlink);
301: $endlink = index($map_string,'"',$startlink+1);
302: $chunk = substr($map_string,$startlink,$endlink-$startlink+1);
303: push @file_seq,$chunk;
304: }
305: return @file_seq;
306: }
307:
308:
309:
310: sub handler {
311:
312: my $r = shift;
313: $r->content_type('text/html');
314: $r->send_http_header;
315:
316: #-- start form
317: &headerform($r);
318: #-- menu for output
319: unless ($ENV{'form.phase'}) {
320: &menu_for_output($r);
321: }
322:
323:
324: #-- core part
325: if ($ENV{'form.phase'} eq 'two') {
326: &output_data($r);
327:
328: }
329: return OK;
330:
331: }
332:
333: 1;
334: __END__
335:
336:
337:
338:
339: #### Test block
340: # my $ere;
341: # foreach $ere (%ENV) {
342: # $result .= ' SS '.$ere.' => '.$ENV{$ere}.' FF '."\n\n";
343: # }
344: ####
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