1: # The LearningOnline Network
2: # Printout
3: #
4: # $Id: lonprintout.pm,v 1.30 2002/05/21 00:44:03 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>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: $r->print(<<ENDMENUOUT1);
69: <input type="hidden" name="phase" value="two">
70: <input type="hidden" name="url" value="$ENV{'form.postdata'}">
71: <input type="radio" name="choice" value="Standard LaTeX output for current document" checked> 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 />
77: ENDMENUOUT1
78: if ($ENV{'user.adv'} eq '1') {
79: $r->print(<<ENDMENUOUT2);
80: <input type="radio" name="choice" value="Subdirectory print"> All problems from particular subdirectory <input type="text" name="subdirect" value="/res/"><br />
81: ENDMENUOUT2
82: }
83: $r->print(<<ENDMENUOUT3);
84: <br /><hr /><br />
85: <h1>And what page format do you prefer?</h1>
86: <input type="radio" name="layout" value="CBI"> Two columns landscape <br />
87: <input type="radio" name="layout" value="CAPA" checked> Two columns portrait <br />
88: <input type="submit" value="Submit your choice">
89: </form>
90: </body>
91: </html>
92: ENDMENUOUT3
93: }
94:
95:
96:
97:
98: sub output_data {
99: my $r = shift;
100: $r->print(<<ENDPART);
101: <html>
102: <head>
103: <title>LON-CAPA output for printing</title>
104: </head>
105: <body bgcolor="FFFFFF">
106: <hr>
107: ENDPART
108:
109: my $choice = $ENV{'form.choice'};
110: my $layout = $ENV{'form.layout'};
111: my $subdirtoprint = $ENV{'form.subdirect'};
112: my $laystyle = 'book';
113: my $result = '';
114: my %mystyle;
115: my $filename;
116:
117: if ($choice eq 'Standard LaTeX output for current document') {
118: my %moreenv;
119: my $currequest=$ENV{'request.filename'};
120: $moreenv{'form.grade_target'}='tex';
121: $moreenv{'request.filename'}=$ENV{'form.url'};
122: &Apache::lonnet::appenv(%moreenv);
123: my $texversion=&Apache::lonnet::ssi($ENV{'form.url'});
124: &Apache::lonnet::delenv('form.grade_target');
125: %moreenv = ();
126: $moreenv{'request.filename'}=$currequest;
127: &Apache::lonnet::appenv(%moreenv);
128: $result .= $texversion;
129: $result = &additional_cleanup($result);
130: } elsif ($choice eq 'Standard LaTeX output for the primary sequence' or $choice eq 'Standard LaTeX output for whole primary sequence') {
131: #-- where is the primary sequence containing file?
132: my %moreenv;
133: my $symbolic = &Apache::lonnet::symbread($ENV{'form.url'});
134: $_ = $symbolic;
135: m/([^_]+)_/;
136: my $primary_sequence = '/res/'.$1;
137: #-- open and analyses the primary sequence
138: my $sequence_file=&Apache::lonnet::filelocation("",$primary_sequence);
139: my $sequencefilecontents=&Apache::lonnet::getfile($sequence_file);
140: my @master_seq = &content_map($sequencefilecontents);
141: #-- produce an output string
142: for (my $i=0;$i<=$#master_seq;$i++) {
143: $_ = $master_seq[$i];
144: m/\"(.*)\"/;
145: $_ = $1;
146: my $urlp = $1;
147: if ($choice eq 'Standard LaTeX output for the primary sequence') {
148: if (/\.(problem|exam|quiz|assess|survey|form|library)/) {
149: my %moreenv;
150: $moreenv{'form.grade_target'}='tex';
151: &Apache::lonnet::appenv(%moreenv);
152: my $texversion=&Apache::lonnet::ssi($urlp);
153: &Apache::lonnet::delenv('form.grade_target');
154: $result .= $texversion;
155: }
156: } else {
157: $moreenv{'form.grade_target'}='tex';
158: &Apache::lonnet::appenv(%moreenv);
159: my $texversion=&Apache::lonnet::ssi($urlp);
160: &Apache::lonnet::delenv('form.grade_target');
161: $result .= $texversion;
162: }
163: }
164: $result = &additional_cleanup($result);
165: } elsif ($choice eq 'Standard LaTeX output for the top level sequence') {
166: my @master_seq = ();
167: my @add_file_seq = ();
168: #-- where is the main sequence of the course?
169: my $main_seq = '/res/'.$ENV{'request.course.uri'};
170: my $file=&Apache::lonnet::filelocation("",$main_seq);
171: my $filecontents=&Apache::lonnet::getfile($file);
172: my @file_seq = &content_map($filecontents);
173: #-- do we have any other sequence inside?
174: my $i=0;
175: while ($i<=$#file_seq) {
176: $_ = $file_seq[$i];
177: if (/\.sequence$/) {
178: $file = &Apache::lonnet::filelocation("",$file_seq[$i]);
179: $filecontents=&Apache::lonnet::getfile($file);
180: @add_file_seq = &content_map($filecontents);
181: splice(@file_seq,$i,1,@add_file_seq);
182: @add_file_seq = ();
183: $i = -1;
184: }
185: $i++;
186: }
187: @master_seq = @file_seq;
188: #-- produce an output string
189: for (my $i=0;$i<=$#master_seq;$i++) {
190: $_ = $master_seq[$i];
191: m/\"(.*)\"/;
192: $_ = $1;
193: my $urlp = $1;
194: if (/\.(problem|exam|quiz|assess|survey|form|library)/) {
195: my %moreenv;
196: $moreenv{'form.grade_target'}='tex';
197: &Apache::lonnet::appenv(%moreenv);
198: my $texversion=&Apache::lonnet::ssi($urlp);
199: &Apache::lonnet::delenv('form.grade_target');
200: $result .= $texversion;
201: }
202: }
203: $result = &additional_cleanup($result);
204: } elsif ($choice eq 'Subdirectory print') {
205: if (&Apache::lonnet::allowed('bre',$subdirtoprint) eq 'F') {
206: my $locald = &Apache::lonnet::filelocation("",$subdirtoprint);
207: unless (-e $locald) {
208: #do something in the case of the absence of this subdirectory on the local mashine
209: #replication process
210: }
211: my @list_of_files = ();
212: my @content_directory = &Apache::lonnet::dirlist($subdirtoprint);
213: for (my $iy=0;$iy<=$#content_directory;$iy++) {
214: my @tempo_array = split(/&/,$content_directory[$iy]);
215: $content_directory[$iy] = $tempo_array[0];
216: if ($content_directory[$iy] =~ m/\.problem$/) {
217: push @list_of_files,$content_directory[$iy];
218: }
219: }
220: for (my $i=0;$i<=$#list_of_files;$i++) {
221: $subdirtoprint =~ s/\/$//;
222: my $urlp = $subdirtoprint.'/'.$list_of_files[$i];
223: my %moreenv;
224: $moreenv{'form.grade_target'}='tex';
225: &Apache::lonnet::appenv(%moreenv);
226: my $texversion=&Apache::lonnet::ssi($urlp);
227: &Apache::lonnet::delenv('form.grade_target');
228: $texversion =~ s/(\\begin{document})/$1 {\\tiny\\begin{verbatim}$urlp\\end{verbatim}}/;
229: $result .= $texversion;
230: }
231: $result = &additional_cleanup($result);
232:
233: } else {
234: #message "you not allowed to do this"
235: }
236:
237:
238:
239:
240:
241: }
242: #-- corrections for the different page formats
243: if ($layout eq 'CBI') {
244: $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}/;
245: $laystyle = 'album';
246: } elsif ($layout eq 'CAPA') {
247: my $courseidinfo = $ENV{'request.role'};
248: $_ = $courseidinfo;
249: m/.*\/(.*)/;
250: $courseidinfo = $ENV{'course.physnet_'.$1.'.description'};
251: $result =~ s/\\documentclass\[letterpaper\]{article}/\\documentclass\[twocolumn\]{article}/;
252: $result =~ s/\\begin{document}/\\textheight 25\.9cm\\oddsidemargin = -0\.57in\\evensidemargin = -0\.57in\\textwidth= 7\.7in\\renewcommand{\\ref}{\\keephidden\}\\begin{document}\\voffset=-1\.8cm\\setcounter{page}{1}\\noindent\\fbox{\\textbf{$ENV{'environment.firstname'} $ENV{'environment.lastname'}}}\\hskip 1\.4in $courseidinfo \\vskip 5 mm /;
253: $result =~ s/\\includegraphics{/\\includegraphics\[width=9\.0 cm\]{/g;
254: $result =~ s/(\\end{document})/\\newline\\noindent\\makebox\[9.0cm\]\[b\]{\\hrulefill}\\newline\\noindent\\tiny Dept\. of Physics and Astronomy, MSU\\makebox\[1.5cm\]\[b\]{\\hfill}LON-CAPA\\copyright MSU GNU\/GPL $1/;
255: }
256: #-- LaTeX corrections
257: my $first_comment = index($result,'<!--',0);
258: while ($first_comment != -1) {
259: my $end_comment = index($result,'-->',$first_comment);
260: substr($result,$first_comment,$end_comment-$first_comment+3) = '';
261: $first_comment = index($result,'<!--',$first_comment);
262: }
263: $result =~ s/^\s+$//gm; #remove empty lines
264: $result =~ s/%/\\%/g; #corrects %
265: $result =~ s/(\s)+/$1/g; #removes more than one empty space
266: $result =~ s/\\\\\s*\\vskip/\\vskip/gm;
267: $result =~ s/ (<|>|) / \$$1\$ /g; #corrects < or >
268: $result =~ s/\\\\\s*\\noindent\s*(\\\\)+/\\\\\\noindent /g;
269: $result =~ s/{\\par }\s*\\\\/\\\\/gm;
270: $result =~ s/\\\\\s+\[/ \[/g;
271: $result =~ s/θ/\$\\theta\$/g; #converts theta from html into tex
272: $result =~ s/\b_+\b/\\makebox\[1 cm\]\[b\]{\\hrulefill}/g;
273: #-- writing .tex file in prtspool
274: my $temp_file;
275: $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout_".time."_".rand(10000000).".tex";
276: unless ($temp_file = Apache::File->new('>'.$filename)) {
277: $r->log_error("Couldn't open $filename for output $!");
278: return SERVER_ERROR;
279: }
280: print $temp_file $result;
281: $r->print(<<FINALEND);
282: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename&$laystyle">
283: </body>
284: </html>
285: FINALEND
286: }
287:
288: sub additional_cleanup {
289: my $result = shift;
290: my $first_app = index($result,'\documentclass',0);
291: $first_app = index($result,'\documentclass',$first_app+5);
292: while ($first_app != -1) {
293: my $second_app = index($result,'begin{document}',$first_app);
294: $first_app = rindex($result,'\end{document}',$first_app);
295: substr($result,$first_app,$second_app-$first_app+15) = '\vskip 3 mm';
296: $first_app = index($result,'\documentclass',$first_app+5);
297: }
298: return $result;
299: }
300:
301:
302: sub content_map {
303: #-- find a list of files to print
304: my $map_string = shift;
305: my @number_seq = ();
306: my @file_seq = ();
307: my $startlink = index($map_string,'<link',0);
308: my $endlink = index($map_string,'</link>',$startlink);
309: my $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
310: $_ = $chunk;
311: m/from=\"(\d+)\"/;
312: push @number_seq,$1;
313: while ($startlink != -1) {
314: $endlink = index($map_string,'</link>',$startlink);
315: $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
316: substr($map_string,$startlink,$endlink-$startlink+7) = '';
317: $_ = $chunk;
318: m/to=\"(\d+)\"/;
319: push @number_seq,$1;
320: $startlink = index($map_string,'from="'.$1.'"',$startlink);
321: $startlink = rindex($map_string,'<link ',$startlink);
322: }
323: my $stalink = index($map_string,' to="'.$number_seq[0].'"',$startlink);
324: while ($stalink != -1) {
325: $startlink = rindex($map_string,'<link ',$stalink);
326: $endlink = index($map_string,'</link>',$startlink);
327: $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
328: substr($map_string,$startlink,$endlink-$startlink+7) = '';
329: $_ = $chunk;
330: m/from=\"(\d+)\"/;
331: unshift @number_seq,$1;
332: $stalink = index($map_string,' to="'.$number_seq[0].'"',0);
333: }
334: for (my $i=0;$i<=$#number_seq;$i++) {
335: $stalink = index($map_string,' id="'.$number_seq[$i].'"',0);
336: {
337: my $ahed1 = index($map_string,'src="',$stalink);
338: my $ahed2 = index($map_string,'</resource>',$stalink);
339: if ($ahed1 != -1) {
340: if ($ahed1 < $ahed2) {
341: $startlink = $ahed1;
342: } else {
343: $startlink = rindex($map_string,'src="',$stalink);
344: }
345: } else {
346: $startlink = rindex($map_string,'src="',$stalink);
347: }
348:
349: }
350: $startlink = index($map_string,'"',$startlink);
351: $endlink = index($map_string,'"',$startlink+1);
352: $chunk = substr($map_string,$startlink,$endlink-$startlink+1);
353: push @file_seq,$chunk;
354: }
355: return @file_seq;
356: }
357:
358:
359:
360: sub handler {
361:
362: my $r = shift;
363: $r->content_type('text/html');
364: $r->send_http_header;
365:
366: #-- start form
367: &headerform($r);
368: #-- menu for output
369: unless ($ENV{'form.phase'}) {
370: &menu_for_output($r);
371: }
372: #-- core part
373: if ($ENV{'form.phase'} eq 'two') {
374: &output_data($r);
375: }
376: return OK;
377:
378: }
379:
380: 1;
381: __END__
382:
383:
384:
385:
386: #### Test block
387: # my $ere;
388: # foreach $ere (%ENV) {
389: # $result .= ' SS '.$ere.' => '.$ENV{$ere}.' FF '."\n\n";
390: # }
391: ####
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