1: # The LearningOnline Network with CAPA
2: # Handler to upload files into construction space
3: #
4: # $Id: lonupload.pm,v 1.9 2001/12/04 18:13:06 matthew 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: # (Handler to retrieve an old version of a file
29: #
30: # (Publication Handler
31: #
32: # (TeX Content Handler
33: #
34: # 05/29/00,05/30,10/11 Gerd Kortemeyer)
35: #
36: # 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer
37: # 03/23 Guy Albertelli
38: # 03/24,03/29 Gerd Kortemeyer)
39: #
40: # 03/31,04/03 Gerd Kortemeyer)
41: #
42: # 04/05,04/09,05/25,06/23,06/24,08/22 Gerd Kortemeyer
43: # 11/29 Matthew Hall
44:
45: package Apache::lonupload;
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: use Apache::lonnet;
53:
54: sub upfile_store {
55: my $r=shift;
56:
57: my $fname=$ENV{'form.upfile.filename'};
58: $fname=~s/\W//g;
59:
60: chop($ENV{'form.upfile'});
61:
62: my $datatoken=$ENV{'user.name'}.'_'.$ENV{'user.domain'}.
63: '_upload_'.$fname.'_'.time.'_'.$$;
64: {
65: my $fh=Apache::File->new('>'.$r->dir_config('lonDaemons').
66: '/tmp/'.$datatoken.'.tmp');
67: print $fh $ENV{'form.upfile'};
68: }
69: return $datatoken;
70: }
71:
72:
73: sub phaseone {
74: my ($r,$fn,$uname,$udom)=@_;
75: $ENV{'form.upfile.filename'}=~s/\\/\//g;
76: $ENV{'form.upfile.filename'}=~s/^.*\/([^\/]+)$/$1/;
77: if ($ENV{'form.upfile.filename'}) {
78: $fn=~s/\/[^\/]+$//;
79: $fn=~s/([^\/])$/$1\//;
80: $fn.=$ENV{'form.upfile.filename'};
81: $fn=~s/^\///;
82: $fn=~s/(\/)+/\//g;
83:
84: if (($fn) && ($fn!~/\/$/)) {
85: $r->print(
86: '<form action=/adm/upload method=post>'.
87: '<input type=hidden name=phase value=two>'.
88: '<input type=hidden name=datatoken value="'.&upfile_store.'">'.
89: 'Store uploaded file as '.
90: '<input type=text size=50 name=filename value="/priv/'.
91: $uname.'/'.$fn.'"><br>'.
92: '<input type=submit value="Store"></form>');
93: # Check for bad extension and warn user
94: if ($fn=~/\.(\w+)$/ &&
95: (&Apache::lonnet::fileembstyle($1) eq 'hdn')) {
96: $r->print(
97: '<font color=red>'.
98: 'The extension on this file, "'.$1.
99: '", is reserved internally by LON-CAPA. <br \>'.
100: 'Please change the extension.'.
101: '</font>');
102: } elsif($fn=~/\.(\w+)$/ &&
103: !defined(&Apache::lonnet::fileembstyle($1))) {
104: $r->print(
105: '<font color=red>'.
106: 'The extension on this file, "'.$1.
107: '", is not recognized by LON-CAPA. <br \>'.
108: 'Please change the extension.'.
109: '</font>');
110: }
111: } else {
112: $r->print('<font color=red>Illegal filename.</font>');
113: }
114: } else {
115: $r->print('<font color=red>No upload file specified.</font>');
116: }
117: }
118:
119: sub phasetwo {
120: my ($r,$fn,$uname,$udom)=@_;
121: if ($fn=~/^\/priv\/$uname\//) {
122: my $tfn=$fn;
123: $tfn=~s/^\/(\~|priv)\/(\w+)//;
124: my $target='/home/'.$uname.'/public_html'.$tfn;
125: my $datatoken=$ENV{'form.datatoken'};
126: if (($fn) && ($datatoken)) {
127: if ((-e $target) && ($ENV{'form.override'} ne 'Yes')) {
128: $r->print(
129: '<form action=/adm/upload method=post>'.
130: 'File <tt>'.$fn.'</tt> exists. Overwrite? '.
131: '<input type=hidden name=phase value=two>'.
132: '<input type=hidden name=filename value="'.$fn.'">'.
133: '<input type=hidden name=datatoken value="'.$datatoken.'">'.
134: '<input type=submit name=override value="Yes"></form>');
135: } else {
136: my $source=$r->dir_config('lonDaemons').
137: '/tmp/'.$datatoken.'.tmp';
138: # Check for bad extension and disallow upload
139: if ($fn=~/\.(\w+)$/ &&
140: (&Apache::lonnet::fileembstyle($1) eq 'hdn')) {
141: $r->print(
142: 'File <tt>'.$fn.'</tt> could not be copied.<br />'.
143: '<font color=red>'.
144: 'The extension on this file is reserved internally by LON-CAPA.'.
145: '</font>');
146: } elsif ($fn=~/\.(\w+)$/ &&
147: !defined(&Apache::lonnet::fileembstyle($1))) {
148: $r->print(
149: 'File <tt>'.$fn.'</tt> could not be copied.<br />'.
150: '<font color=red>'.
151: 'The extension on this file is not recognized by LON-CAPA.'.
152: '</font>');
153: } elsif (copy($source,$target)) {
154: $r->print('File copied.');
155: $r->print('<p><font size=+2><a href="'.$fn.
156: '">View file</a></font>');
157: } else {
158: $r->print('Failed to copy: '.$!);
159: }
160: }
161: } else {
162: $r->print(
163: '<font size=+1 color=red>Please pick a filename</font><p>');
164: &phaseone($r,$fn,$uname,$udom);
165: }
166: } else {
167: $r->print(
168: '<font size=+1 color=red>Please pick a filename</font><p>');
169: &phaseone($r,$fn,$uname,$udom);
170: }
171: }
172:
173: sub handler {
174:
175: my $r=shift;
176:
177: my $uname;
178: my $udom;
179:
180: ($uname,$udom)=
181: &Apache::loncacc::constructaccess(
182: $ENV{'form.filename'},$r->dir_config('lonDefDomain'));
183: unless (($uname) && ($udom)) {
184: $r->log_reason($uname.' at '.$udom.
185: ' trying to publish file '.$ENV{'form.filename'}.
186: ' - not authorized',
187: $r->filename);
188: return HTTP_NOT_ACCEPTABLE;
189: }
190:
191: my $fn;
192:
193: if ($ENV{'form.filename'}) {
194: $fn=$ENV{'form.filename'};
195: $fn=~s/^http\:\/\/[^\/]+\/(\~|priv\/)(\w+)//;
196: } else {
197: $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
198: ' unspecified filename for upload', $r->filename);
199: return HTTP_NOT_FOUND;
200: }
201:
202: # ----------------------------------------------------------- Start page output
203:
204:
205: $r->content_type('text/html');
206: $r->send_http_header;
207:
208: $r->print('<html><head><title>LON-CAPA Construction Space</title></head>');
209:
210: $r->print(
211: '<body bgcolor="#FFFFFF"><img align=right src=/adm/lonIcons/lonlogos.gif>');
212:
213:
214: $r->print('<h1>Upload file to Construction Space</h1>');
215:
216: if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {
217: $r->print('<h3><font color=red>Co-Author: '.$uname.' at '.$udom.
218: '</font></h3>');
219: }
220:
221:
222: if ($ENV{'form.phase'} eq 'two') {
223: &phasetwo($r,$fn,$uname,$udom);
224: } else {
225: &phaseone($r,$fn,$uname,$udom);
226: }
227:
228: $r->print('</body></html>');
229: return OK;
230: }
231:
232: 1;
233: __END__
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