File:
[LON-CAPA] /
loncom /
auth /
publiccheck.pm
Revision
1.16:
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Wed Jan 14 15:36:42 2009 UTC (15 years, 8 months ago) by
raeburn
Branches:
MAIN
CVS tags:
version_2_9_X,
version_2_9_1,
version_2_9_0,
version_2_8_X,
version_2_8_99_1,
version_2_8_99_0,
version_2_8_2,
version_2_8_1,
version_2_8_0,
bz5969,
bz2851,
HEAD,
GCI_2,
GCI_1,
BZ5971-printing-apage,
BZ5434-fox
- Skip check for icons etc. in /res/adm/pages
1: # The LearningOnline Network
2: # Cookie Based Access Handler
3: #
4: # $Id: publiccheck.pm,v 1.16 2009/01/14 15:36:42 raeburn 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:
30: package Apache::publiccheck;
31:
32: use strict;
33: use Apache::Constants qw(:common :http :methods);
34: use Apache::lonnet;
35: use Apache::loncommon();
36: use Apache::lonlocal;
37: use Fcntl qw(:flock);
38: use Apache::lonacc();
39: use LONCAPA();
40:
41: sub handler {
42: my $r = shift;
43:
44: my $requrl=$r->uri;
45:
46: if (&Apache::lonnet::is_domainimage($requrl)) {
47: return OK;
48: }
49:
50: if ($requrl =~ m{^/res/adm/pages/[^/]+\.(gif|png)$}) {
51: return OK;
52: }
53:
54: my $handle = &Apache::lonnet::check_for_valid_session($r);
55: if ($handle ne '') {
56: my $lonidsdir=$r->dir_config('lonIDsDir');
57: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
58: if ($env{'user.name'} ne 'public'
59: && $env{'user.domain'} ne 'public') {
60: return OK;
61: }
62: }
63: if ($requrl=~m|^/public/|
64: || $requrl=~m|^/adm/help/.*\.hlp$|
65: || $requrl=~m|^/adm/[^/]+/[^/]+/aboutme/portfolio$|
66: || (&Apache::lonnet::metadata($requrl,'copyright') eq 'public')) {
67: &process_public($r,$requrl);
68: return OK;
69: } elsif (&Apache::lonnet::is_portfolio_url($requrl)) {
70: my (undef,$udom,$unum,$file_name,$group) =
71: &Apache::lonnet::parse_portfolio_url($requrl);
72: my $access = &process_portfolio($udom,$unum,$file_name,$group);
73: if ($access) {
74: &process_public($r,$requrl,$access);
75: return OK;
76: }
77: } elsif ($requrl eq '/adm/restrictedaccess') {
78: &process_public($r,$requrl);
79: return OK;
80: } elsif ($requrl eq '/adm/blockedaccess') {
81: &process_public($r,$requrl);
82: return OK;
83: }
84: return DECLINED;
85: }
86:
87: sub process_public {
88: my ($r,$requrl,$access) = @_;
89: &Apache::lonnet::logthis('Granting public access: '.$requrl);
90: if ($env{'user.name'} ne 'public' && $env{'user.domain'} ne 'public') {
91: my $cookie=&Apache::lonauth::success($r,'public','public','public');
92: my $lonidsdir=$r->dir_config('lonIDsDir');
93: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$cookie);
94: $r->err_header_out('Set-cookie',"lonID=$cookie; path=/");
95: }
96: &Apache::lonacc::get_posted_cgi($r);
97: $env{'request.state'} = "published";
98: $env{'request.publicaccess'} = 1;
99: $env{'request.filename'} = $r->filename;
100: return;
101: }
102:
103: sub process_portfolio {
104: my ($udom,$unum,$file_name,$group) = @_;
105: my $current_perms = &Apache::lonnet::get_portfile_permissions($udom,$unum);
106: my %access_controls = &Apache::lonnet::get_access_controls($current_perms,$group,$file_name);
107: my $access = '';
108: my $now = time;
109: foreach my $key (keys(%{$access_controls{$file_name}})) {
110: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
111: if ($start > $now) {
112: next;
113: }
114: if ($end && $end<$now) {
115: next;
116: }
117: if ($scope eq 'public') {
118: $access = 'public';
119: last;
120: }
121: if ($scope eq 'guest') {
122: $access = 'guest';
123: }
124: }
125: return $access;
126: }
127:
128: 1;
129:
130: __END__
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