File:
[LON-CAPA] /
loncom /
auth /
blockedaccess.pm
Revision
1.4:
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Sat Mar 31 23:10:47 2012 UTC (12 years, 5 months ago) by
raeburn
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MAIN
CVS tags:
version_2_11_2_uiuc,
version_2_11_2_educog,
version_2_11_2,
version_2_11_1,
version_2_11_0_RC3,
version_2_11_0_RC2,
version_2_11_0_RC1,
version_2_11_0,
HEAD
- Bug 6518
- Exam blocks can also block access to specified folders and/or resources
for the duration of an exam.
- Start time for blocking can be based on activation of the timer for
a specific timed quiz item (map or resource-specific). End time for
blocking is then start time plus the duration of the timed interval.
lonnet.pm:
- &rolesinit() now returns an array containing references to hashes
for the following: userroles, firstaccenv, timerintenv.
- New db file: timerinterval.db contains interval which applied when
user activated timer for a map or resource for which time limit applied.
- needed to determine end time for exam blocks which are triggered by
timer activation.
- New routine &get_comm_blocks() used to get communication/collaboration
blocks from a course. Now cached for 10 minutes in memcached.
- New routine: &has_comm_blocking() used to determine if exam block
applies to display of requested content item in a course. Used by
&allowed().
- new routine: &check_docs_block() used by &has_comm_blocking().
loncommon.pm:
- new items added to user's environment by &init_user_environment()
- $env{'course.courseid.firstaccess.symb'} and
$env{'course.courseid.timerinterval.symb'} where symb is the symb
of the resource or map which provides the activation-based block
for access to specific content.
blockedaccess.pm:
- now called when access to content is blocked by an exam block.
duration, and setter of block now available in pop-up from:
&loncommon::blocking_status() for this type of access control.
1: # The LearningOnline Network
2: # Information about blocking status for Portfolio files
3: #
4: # $Id: blockedaccess.pm,v 1.4 2012/03/31 23:10:47 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: package Apache::blockedaccess;
30:
31: use strict;
32: use Apache::Constants qw(:common :http REDIRECT);
33: use Apache::lonnet;
34: use Apache::loncommon();
35: use Apache::lonlocal;
36:
37: sub handler {
38: my $r = shift;
39: &Apache::loncommon::content_type($r,'text/html');
40: $r->send_http_header;
41: return OK if $r->header_only;
42:
43: &Apache::lonlocal::get_language_handle($r);
44: my $origurl = $r->uri;
45: my ($blocked,$blocktext);
46:
47: if (&Apache::lonnet::is_portfolio_url($origurl)) {
48: my ($type,$udom,$uname,$file_name,$group) =
49: &Apache::lonnet::parse_portfolio_url($origurl);
50: ($blocked,$blocktext) =
51: &Apache::loncommon::blocking_status('port',$uname,$udom);
52: } else {
53: if ($env{'request.course.id'}) {
54: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
55: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
56: ($blocked,$blocktext) =
57: &Apache::loncommon::blocking_status('docs',$cnum,$cdom,$origurl);
58: }
59: }
60: if ($blocked) {
61: $r->print(&Apache::loncommon::start_page('Access Temporarily Blocked'));
62: $r->print($blocktext);
63: } else {
64: my $server = &Apache::lonnet::absolute_url();
65: $r->header_out(Location => $server.$origurl);
66: return REDIRECT;
67: }
68: $r->print(&Apache::loncommon::end_page());
69: return OK;
70: }
71:
72: sub setup_handler {
73: my ($r) = @_;
74: $r->set_handlers('PerlHandler'=>
75: [\&Apache::blockedaccess::handler]);
76: $r->handler('perl-script');
77: }
78:
79: 1;
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