1: # The LearningOnline Network with CAPA
2: # Handler to rename files, etc, in construction space
3: #
4: # $Id: loncfile.pm,v 1.8 2002/01/21 17:13:49 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: #
29: # (Handler to retrieve an old version of a file
30: #
31: # (Publication Handler
32: #
33: # (TeX Content Handler
34: #
35: # 05/29/00,05/30,10/11 Gerd Kortemeyer)
36: #
37: # 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer
38: # 03/23 Guy Albertelli
39: # 03/24,03/29 Gerd Kortemeyer)
40: #
41: # 03/31,04/03,05/02,05/09,06/23,06/24 Gerd Kortemeyer)
42: #
43: # 06/23 Gerd Kortemeyer
44:
45: package Apache::loncfile;
46:
47: use strict;
48: use Apache::File;
49: use File::Copy;
50: use Apache::Constants qw(:common :http :methods);
51: use Apache::loncacc;
52:
53: sub exists {
54: my ($uname,$udom,$dir,$newfile)=@_;
55: my $published='/home/httpd/html/res/'.$udom.'/'.$uname.'/'.$dir.'/'.
56: $ENV{'form.newfilename'};
57: my $construct='/home/'.$uname.'/public_html/'.$dir.'/'.
58: $ENV{'form.newfilename'};
59: my $result;
60: if (-e $published) {
61: $result.='<p><font color=red>Warning: target file exists, and has been published!</font></p>';
62: } elsif ( -e $construct ) {
63: $result.='<p><font color=red>Warning: target file exists!</font></p>';
64: }
65: return $result;
66: }
67:
68: sub checksuffix {
69: my ($old,$new) = @_;
70: my $result;
71: my $oldsuffix;
72: my $newsuffix;
73: if ($new=~m:(.*/*)([^/]+)\.(\w+)$:) { $newsuffix=$3; }
74: if ($old=~m:(.*)/+([^/]+)\.(\w+)$:) { $oldsuffix=$3; }
75: if ($oldsuffix ne $newsuffix) {
76: $result.='<p><font color=red>Warning: change of MIME type!</font></p>';
77: }
78: return $result;
79: }
80:
81: sub phaseone {
82: my ($r,$fn,$uname,$udom)=@_;
83:
84: $fn=~m:(.*)/([^/]+)\.(\w+)$:;
85: my $dir=$1;
86: my $main=$2;
87: my $suffix=$3;
88:
89: my $conspace='/home/'.$uname.'/public_html'.$fn;
90:
91: $r->print('<form action=/adm/cfile method=post>'.
92: '<input type=hidden name=filename value="/~'.$uname.$fn.'">'.
93: '<input type=hidden name=phase value=two>'.
94: '<input type=hidden name=action value='.$ENV{'form.action'}.'>');
95:
96: if ($ENV{'form.action'} eq 'rename') {
97: if (-e $conspace) {
98: if ($ENV{'form.newfilename'}) {
99: $r->print(&checksuffix($fn,$ENV{'form.newfilename'}));
100: $r->print(&exists($uname,$udom,$dir,$ENV{'form.newfilename'}));
101: $r->print('<input type=hidden name=newfilename value="'.
102: $ENV{'form.newfilename'}.
103: '"><p>Rename <tt>'.$fn.'</tt> to <tt>'.
104: $dir.'/'.$ENV{'form.newfilename'}.'</tt>?</p>');
105: } else {
106: $r->print('<p>No new filename specified.</p></form>');
107: return;
108: }
109: } else {
110: $r->print('<p>No such file.</p></form>');
111: return;
112: }
113: } elsif ($ENV{'form.action'} eq 'delete') {
114: if (-e $conspace) {
115: $r->print('<p>Delete <tt>'.$fn.'</tt>?</p>');
116: } else {
117: $r->print('<p>No such file.</p></form>');
118: return;
119: }
120: } elsif ($ENV{'form.action'} eq 'copy') {
121: if (-e $conspace) {
122: if ($ENV{'form.newfilename'}) {
123: $r->print(&checksuffix($fn,$ENV{'form.newfilename'}));
124: $r->print(&exists($uname,$udom,$dir,$ENV{'form.newfilename'}));
125: $r->print('<input type=hidden name=newfilename value="'.
126: $ENV{'form.newfilename'}.
127: '"><p>Copy <tt>'.$fn.'</tt> to <tt>'.
128: $dir.'/'.$ENV{'form.newfilename'}.'</tt>?</p>');
129: } else {
130: $r->print('<p>No new filename specified.</p></form>');
131: return;
132: }
133: } else {
134: $r->print('<p>No such file.</p></form>');
135: return;
136: }
137: } elsif ($ENV{'form.action'} eq 'newdir') {
138: my $newdir='/home/'.$uname.'/public_html/'.
139: $fn.$ENV{'form.newfilename'};
140: if (-e $newdir) {
141: $r->print('<p>Directory exists.</p></form>');
142: return;
143: }
144: $r->print('<input type=hidden name=newfilename value="'.
145: $ENV{'form.newfilename'}.
146: '"><p>Make new directory <tt>'.
147: $fn.$ENV{'form.newfilename'}.'</tt>?</p>');
148:
149: }
150: $r->print('<p><input type=submit value=Continue></p></form>');
151: $r->print('<form action="/priv/'.$uname.$fn.
152: '" method="GET"><p><input type=submit value=Cancel></p></form>');
153:
154: }
155:
156: sub phasetwo {
157: my ($r,$fn,$uname,$udom)=@_;
158:
159: $fn=~/(.*)\/([^\/]+)\.(\w+)$/;
160: my $dir=$1;
161: my $main=$2;
162: my $suffix=$3;
163:
164: my $conspace='/home/'.$uname.'/public_html'.$fn;
165:
166: if ($ENV{'form.action'} eq 'rename') {
167: if (-e $conspace) {
168: if ($ENV{'form.newfilename'}) {
169: unless (rename('/home/'.$uname.'/public_html'.$fn,
170: '/home/'.$uname.'/public_html'.$dir.'/'.$ENV{'form.newfilename'})) {
171: $r->print('<font color=red>Error: '.$!.'</font>');
172: }
173: }
174: } else {
175: $r->print('<p>No such file.</form>');
176: return;
177: }
178: } elsif ($ENV{'form.action'} eq 'delete') {
179: if (-e $conspace) {
180: unless (unlink('/home/'.$uname.'/public_html'.$fn)) {
181: $r->print('<font color=red>Error: '.$!.'</font>');
182: }
183: } else {
184: $r->print('<p>No such file.</form>');
185: return;
186: }
187: } elsif ($ENV{'form.action'} eq 'copy') {
188: if (-e $conspace) {
189: if ($ENV{'form.newfilename'}) {
190: unless (copy('/home/'.$uname.'/public_html'.$fn,
191: '/home/'.$uname.'/public_html'.$dir.'/'.$ENV{'form.newfilename'})) {
192: $r->print('<font color=red>Error: '.$!.'</font>');
193: }
194: } else {
195: $r->print('<p>No new filename specified.</form>');
196: return;
197: }
198: } else {
199: $r->print('<p>No such file.</form>');
200: return;
201: }
202: } elsif ($ENV{'form.action'} eq 'newdir') {
203: my $newdir='/home/'.$uname.'/public_html/'.
204: $fn.$ENV{'form.newfilename'};
205: unless (mkdir($newdir,0770)) {
206: $r->print('<font color=red>Error: '.$!.'</font>');
207: }
208: $r->print('<h3><a href="/priv/'.$uname.$fn.'/">Done</a></h3>');
209: return;
210: }
211: $r->print('<h3><a href="/priv/'.$uname.$dir.'/">Done</a></h3>');
212: }
213:
214: sub handler {
215:
216: my $r=shift;
217:
218: my $fn;
219:
220: if ($ENV{'form.filename'}) {
221: $fn=$ENV{'form.filename'};
222: $fn=~s/^http\:\/\/[^\/]+//;
223: } else {
224: $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
225: ' unspecified filename for cfile', $r->filename);
226: return HTTP_NOT_FOUND;
227: }
228:
229: unless ($fn) {
230: $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
231: ' trying to cfile non-existing file', $r->filename);
232: return HTTP_NOT_FOUND;
233: }
234:
235: # ----------------------------------------------------------- Start page output
236: my $uname;
237: my $udom;
238:
239: ($uname,$udom)=
240: &Apache::loncacc::constructaccess($fn,$r->dir_config('lonDefDomain'));
241: unless (($uname) && ($udom)) {
242: $r->log_reason($uname.' at '.$udom.
243: ' trying to manipulate file '.$ENV{'form.filename'}.
244: ' ('.$fn.') - not authorized',
245: $r->filename);
246: return HTTP_NOT_ACCEPTABLE;
247: }
248:
249: $fn=~s/\/\~(\w+)//;
250:
251: $r->content_type('text/html');
252: $r->send_http_header;
253:
254: $r->print('<html><head><title>LON-CAPA Construction Space</title></head>');
255:
256: $r->print(
257: '<body bgcolor="#FFFFFF"><img align=right src=/adm/lonIcons/lonlogos.gif>');
258:
259:
260: $r->print('<h1>Construction Space <tt>'.$fn.'</tt></h1>');
261:
262: if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {
263: $r->print('<h3><font color=red>Co-Author: '.$uname.' at '.$udom.
264: '</font></h3>');
265: }
266:
267: if ($ENV{'form.action'} eq 'delete') {
268: $r->print('<h3>Delete</h3>');
269: } elsif ($ENV{'form.action'} eq 'rename') {
270: $r->print('<h3>Rename</h3>');
271: } elsif ($ENV{'form.action'} eq 'newdir') {
272: $r->print('<h3>New Directory</h3>');
273: } elsif ($ENV{'form.action'} eq 'copy') {
274: $r->print('<h3>Copy</h3>');
275: } else {
276: $r->print('<p>Unknown Action</body></html>');
277: return OK;
278: }
279: if ($ENV{'form.phase'} eq 'two') {
280: &phasetwo($r,$fn,$uname,$udom);
281: } else {
282: &phaseone($r,$fn,$uname,$udom);
283: }
284:
285: $r->print('</body></html>');
286: return OK;
287: }
288:
289: 1;
290: __END__
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