1: # The LearningOnline Network with CAPA
2: # (Publication Handler
3: #
4: # $Id: lonpubdir.pm,v 1.21 2002/02/05 12:54:46 foxr 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: #
29: # (TeX Content Handler
30: #
31: # YEAR=2000
32: # 05/29/00,05/30,10/11 Gerd Kortemeyer)
33: #
34: # 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer
35: # YEAR=2001
36: # 03/23 Guy Albertelli
37: # 03/24,03/29 Gerd Kortemeyer)
38: # 03/31,04/03,05/09,06/23,08/18,08/20 Gerd Kortemeyer
39: # 12/15 Scott Harrison
40: # 12/28 Gerd Kortemeyer
41: #
42: ###
43:
44: package Apache::lonpubdir;
45:
46: use strict;
47: use Apache::File;
48: use File::Copy;
49: use Apache::Constants qw(:common :http :methods);
50: use Apache::loncacc;
51: use Apache::loncommon();
52:
53: sub handler {
54:
55: my $r=shift;
56:
57: my $fn;
58:
59: if ($ENV{'form.filename'}) {
60: $fn=$ENV{'form.filename'};
61: $fn=~s/^http\:\/\/[^\/]+\/\~(\w+)/\/home\/$1\/public_html/;
62: $fn=~s/\/[^\/]+$//;
63: } else {
64: $fn=$r->filename();
65: }
66:
67: my $uname;
68: my $udom;
69:
70: ($uname,$udom)=
71: &Apache::loncacc::constructaccess(
72: $fn,$r->dir_config('lonDefDomain'));
73: unless (($uname) && ($udom)) {
74: $r->log_reason($uname.' at '.$udom.
75: ' trying to publish file '.$ENV{'form.filename'}.
76: ' ('.$fn.') - not authorized',
77: $r->filename);
78: return HTTP_NOT_ACCEPTABLE;
79: }
80:
81: $fn=~s/\/$//;
82:
83: unless ($fn) {
84: $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
85: ' trying to list empty directory', $r->filename);
86: return HTTP_NOT_FOUND;
87: }
88:
89: # ----------------------------------------------------------- Start page output
90:
91:
92: $r->content_type('text/html');
93: $r->send_http_header;
94:
95: $r->print('<html><head><title>LON-CAPA Construction Space</title></head>');
96:
97: $r->print(
98: '<body bgcolor="#FFFFFF"><img align=right src=/adm/lonIcons/lonlogos.gif>');
99:
100: my $thisdisfn=$fn;
101: $thisdisfn=~s/^\/home\/$uname\/public_html//;
102:
103: $r->print('<h1>Construction Space Directory <tt>'.$thisdisfn.'/</tt></h1>');
104:
105: if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {
106: $r->print('<h3>Co-Author: '.$uname.' at '.$udom.
107: '</h3>');
108: }
109:
110:
111: my $docroot=$r->dir_config('lonDocRoot');
112:
113: my $resdir=$docroot.'/res/'.$udom.'/'.$uname.$thisdisfn;
114: my $targetdir=$udom.'/'.$uname.$thisdisfn;
115: my $linkdir='/~'.$uname.$thisdisfn;
116:
117: $r->print('<table border=2>'.
118: '<tr><th>Actions</th><th>Name</th><th>Title</th>'.
119: '<th>Status</th><th>Last Modified</th></tr>');
120:
121: my $filename;
122: my $dirptr=16384;
123:
124: opendir(DIR,$fn);
125: my @files=sort(readdir(DIR));
126: foreach my $filename (@files) {
127: my ($cdev,$cino,$cmode,$cnlink,
128: $cuid,$cgid,$crdev,$csize,
129: $catime,$cmtime,$cctime,
130: $cblksize,$cblocks)=stat($fn.'/'.$filename);
131:
132: my $extension='';
133: if ($filename=~/\.(\w+)$/) { $extension=$1; }
134: if ($cmode&$dirptr) {
135: putdirectory($r, $thisdisfn, $linkdir, $filename, $cmtime);
136: } elsif (&Apache::loncommon::fileembstyle($extension) ne 'hdn') {
137: my $status='Unpublished';
138: my $title=' ';
139: if (-e $resdir.'/'.$filename) {
140: my ($rdev,$rino,$rmode,$rnlink,
141: $ruid,$rgid,$rrdev,$rsize,
142: $ratime,$rmtime,$rctime,
143: $rblksize,$rblocks)=stat($resdir.'/'.$filename);
144: if ($rmtime>=$cmtime) {
145: $status='Published';
146: $title=
147: '<a href="/res/'.$targetdir.'/'.$filename.'.meta" target=cat>'.
148: &Apache::lonnet::metadata($targetdir.'/'.$filename,'title').'</a>';
149: } else {
150: $status='Modified';
151: $title=
152: '<a href="/res/'.$targetdir.'/'.$filename.'.meta" target=cat>'.
153: &Apache::lonnet::metadata($targetdir.'/'.$filename,'title').'</a>';
154: if
155: (&Apache::loncommon::fileembstyle(($filename=~/\.(\w+)$/)) eq 'ssi') {
156: $status.='<br><a href="/adm/diff?filename=/~'.$uname.
157: $thisdisfn.'/'.$filename.
158: '&versionone=priv" target=cat>Diffs</a>';
159: }
160: }
161: $status.='<br><a href="/adm/retrieve?filename=/~'.$uname.
162: $thisdisfn.'/'.$filename.'" target=cat>Retrieve</a>';
163: }
164: $r->print('<tr>'.
165: '<td><a target="_parent" href="/adm/publish?filename=/~'.
166: $uname.$thisdisfn.'/'.$filename.'">'.'Publish</a>'.
167: '</td>'.
168: '<td>'.
169: '<a href="'.$linkdir.'/'.$filename.'">'.$filename.'</a>'.
170: '</td>'.
171: '<td>'.$title.'</td>'.
172: '<td>'.$status.'</td>'.
173: '<td>'.localtime($cmtime).'</td>'.
174: '</tr>');
175: } else {
176: # "hidden" extension and not a directory, so hide it away.
177: }
178: }
179: closedir(DIR);
180:
181: $r->print('</table></body></html>');
182: return OK;
183: }
184: #
185: # Put out a directory table row:
186: # putdirectory(r, base, here, dirname, modtime)
187: # r - Apache request object.
188: # reqfile - File in request.
189: # here - Where we are in directory tree.
190: # dirname - Name of directory special file.
191: # modtime - Encoded modification time.
192: #
193: sub putdirectory {
194: my ($r, $reqfile, $here, $dirname, $modtime) = @_;
195:
196: # construct the display filename: the directory name unless ..:
197:
198: my $disfilename = $dirname;
199: if ($dirname eq '..') {
200: $disfilename = '<i>Parent Directory</i>';
201: }
202: unless (( ($dirname eq '..') && ($reqfile eq '')) ||
203: ($dirname eq '.')) {
204: $r->print('<tr>'.
205: '<td>Click to cwd</td>'.
206: '<td><a href="'.$here.'/'.$dirname.'/">'.
207: $disfilename.'</a></td>'.
208: '<td> </td>'.
209: '<td> </td>'.
210: '<td>'.localtime($modtime).'</td>'.
211: '</tr>');
212: }
213: return OK;
214: }
215: 1;
216: __END__
217:
218: =head1 NAME
219:
220: Apache::lonpubdir - Publication Handler for Directories
221:
222: =head1 SYNOPSIS
223:
224: Invoked (for various locations) by /etc/httpd/conf/srm.conf:
225:
226: <LocationMatch "^/\~.*/$">
227: PerlAccessHandler Apache::loncacc
228: SetHandler perl-script
229: PerlHandler Apache::lonpubdir
230: ErrorDocument 403 /adm/login
231: ErrorDocument 404 /adm/notfound.html
232: ErrorDocument 406 /adm/unauthorized.html
233: ErrorDocument 500 /adm/errorhandler
234: </LocationMatch>
235:
236: <Location /adm/pubdir>
237: PerlAccessHandler Apache::lonacc
238: SetHandler perl-script
239: PerlHandler Apache::lonpubdir
240: ErrorDocument 403 /adm/login
241: ErrorDocument 404 /adm/notfound.html
242: ErrorDocument 406 /adm/unauthorized.html
243: ErrorDocument 500 /adm/errorhandler
244: </Location>
245:
246: =head1 INTRODUCTION
247:
248: This module publishes a directory of files.
249:
250: This is part of the LearningOnline Network with CAPA project
251: described at http://www.lon-capa.org.
252:
253: =head1 HANDLER SUBROUTINE
254:
255: This routine is called by Apache and mod_perl.
256:
257: =over 4
258:
259: =item *
260:
261: read in information
262:
263: =item *
264:
265: start page output
266:
267: =item *
268:
269: run through list of files and attempt to publish unhidden files
270:
271: =back
272:
273: =cut
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