1: # The LearningOnline Network with CAPA
2: # (Publication Handler
3: #
4: # $Id: lonpubdir.pm,v 1.22 2002/02/05 22:25:00 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: putresource($r, $uname, $filename, $thisdisfn, $resdir,
138: $targetdir, $linkdir, $cmtime);
139: } else {
140: # "hidden" extension and not a directory, so hide it away.
141: }
142: }
143: closedir(DIR);
144:
145: $r->print('</table></body></html>');
146: return OK;
147: }
148: #
149: # Put out a directory table row:
150: # putdirectory(r, base, here, dirname, modtime)
151: # r - Apache request object.
152: # reqfile - File in request.
153: # here - Where we are in directory tree.
154: # dirname - Name of directory special file.
155: # modtime - Encoded modification time.
156: #
157: sub putdirectory {
158: my ($r, $reqfile, $here, $dirname, $modtime) = @_;
159:
160: # construct the display filename: the directory name unless ..:
161:
162: my $disfilename = $dirname;
163: if ($dirname eq '..') {
164: $disfilename = '<i>Parent Directory</i>';
165: }
166: unless (( ($dirname eq '..') && ($reqfile eq '')) ||
167: ($dirname eq '.')) {
168: $r->print('<tr>'.
169: '<td>Click to cwd</td>'.
170: '<td><a href="'.$here.'/'.$dirname.'/">'.
171: $disfilename.'</a></td>'.
172: '<td> </td>'.
173: '<td> </td>'.
174: '<td>'.localtime($modtime).'</td>'.
175: '</tr>');
176: }
177: return OK;
178: }
179: #
180: # Put a table row for a file resource.
181: #
182: sub putresource {
183: my ($r, $uname, $filename, $thisdisfn,
184: $resdir, $targetdir, $linkdir,
185: $cmtime) = @_;
186:
187: my $status='Unpublished';
188: my $title=' ';
189: if (-e $resdir.'/'.$filename) {
190: my ($rdev,$rino,$rmode,$rnlink,
191: $ruid,$rgid,$rrdev,$rsize,
192: $ratime,$rmtime,$rctime,
193: $rblksize,$rblocks)=stat($resdir.'/'.$filename);
194: if ($rmtime>=$cmtime) {
195: $status='Published';
196: $title='<a href="/res/'.$targetdir.'/'.$filename.'.meta" target=cat>'.
197: &Apache::lonnet::metadata($targetdir.'/'.$filename,'title').'</a>';
198: } else {
199: $status='Modified';
200: $title='<a href="/res/'.$targetdir.'/'.$filename.'.meta" target=cat>'.
201: &Apache::lonnet::metadata($targetdir.'/'.$filename,'title').'</a>';
202: if (&Apache::loncommon::fileembstyle(($filename=~/\.(\w+)$/)) eq 'ssi') {
203: $status.='<br><a href="/adm/diff?filename=/~'.$uname.
204: $thisdisfn.'/'.$filename.
205: '&versionone=priv" target=cat>Diffs</a>';
206: }
207: }
208: $status.='<br><a href="/adm/retrieve?filename=/~'.$uname.
209: $thisdisfn.'/'.$filename.'" target=cat>Retrieve</a>';
210: }
211: $r->print('<tr>'.
212: '<td><a target="_parent" href="/adm/publish?filename=/~'.
213: $uname.$thisdisfn.'/'.$filename.'">'.'Publish</a>'.
214: '</td>'.
215: '<td>'.
216: '<a href="'.$linkdir.'/'.$filename.'">'.$filename.'</a>'.
217: '</td>'.
218: '<td>'.$title.'</td>'.
219: '<td>'.$status.'</td>'.
220: '<td>'.localtime($cmtime).'</td>'.
221: '</tr>');
222: return OK;
223: }
224:
225: 1;
226: __END__
227:
228: =head1 NAME
229:
230: Apache::lonpubdir - Publication Handler for Directories
231:
232: =head1 SYNOPSIS
233:
234: Invoked (for various locations) by /etc/httpd/conf/srm.conf:
235:
236: <LocationMatch "^/\~.*/$">
237: PerlAccessHandler Apache::loncacc
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: </LocationMatch>
245:
246: <Location /adm/pubdir>
247: PerlAccessHandler Apache::lonacc
248: SetHandler perl-script
249: PerlHandler Apache::lonpubdir
250: ErrorDocument 403 /adm/login
251: ErrorDocument 404 /adm/notfound.html
252: ErrorDocument 406 /adm/unauthorized.html
253: ErrorDocument 500 /adm/errorhandler
254: </Location>
255:
256: =head1 INTRODUCTION
257:
258: This module publishes a directory of files.
259:
260: This is part of the LearningOnline Network with CAPA project
261: described at http://www.lon-capa.org.
262:
263: =head1 HANDLER SUBROUTINE
264:
265: This routine is called by Apache and mod_perl.
266:
267: =over 4
268:
269: =item *
270:
271: read in information
272:
273: =item *
274:
275: start page output
276:
277: =item *
278:
279: run through list of files and attempt to publish unhidden files
280:
281: =back
282:
283: =cut
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