version 1.46, 2007/10/02 01:09:59
|
version 1.56, 2011/10/25 18:37:11
|
Line 27
|
Line 27
|
# http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
# |
# |
|
|
|
=pod |
|
|
|
=head1 NAME |
|
|
|
Apache::lonacc - Cookie Based Access Handler for Construction Area |
|
|
|
=head1 SYNOPSIS |
|
|
|
Invoked (for various locations) by /etc/httpd/conf/loncapa_apache.conf: |
|
|
|
PerlAccessHandler Apache::loncacc |
|
|
|
=head1 INTRODUCTION |
|
|
|
This module enables cookie based authentication for construction area |
|
and is used to control access for three (essentially equivalent) URIs. |
|
|
|
<LocationMatch "^/priv.*"> |
|
<LocationMatch "^/\~.*"> |
|
<LocationMatch "^/\~.*/$"> |
|
|
|
Whenever the client sends the cookie back to the server, |
|
if the cookie is missing or invalid, the user is re-challenged |
|
for login information. |
|
|
|
This is part of the LearningOnline Network with CAPA project |
|
described at http://www.lon-capa.org. |
|
|
|
=head1 HANDLER SUBROUTINE |
|
|
|
This routine is called by Apache and mod_perl. |
|
|
|
=over 4 |
|
|
|
=item * |
|
|
|
load POST parameters |
|
|
|
=item * |
|
|
|
store where they wanted to go (first url entered) |
|
|
|
=back |
|
|
|
=head1 OTHERSUBROUTINES |
|
|
|
=over |
|
|
|
=item constructaccess($url,$setpriv) |
|
|
|
See if the owner domain and name |
|
in the URL match those in the expected environment. If so, return |
|
two element list ($ownername,$ownerdomain). Else, return null string. |
|
If 'setpriv' is set to 'setpriv', it actually assigns the privileges. |
|
=back |
|
|
|
=cut |
|
|
|
|
package Apache::loncacc; |
package Apache::loncacc; |
|
|
use strict; |
use strict; |
Line 38 use Apache::lonacc;
|
Line 97 use Apache::lonacc;
|
use LONCAPA qw(:DEFAULT :match); |
use LONCAPA qw(:DEFAULT :match); |
|
|
sub constructaccess { |
sub constructaccess { |
my ($url,$ownerdomain)=@_; |
my ($url,$setpriv)=@_; |
my ($ownername)=($url=~/\/(?:\~|priv\/|home\/)($match_username)\//); |
|
unless (($ownername) && ($ownerdomain)) { return ''; } |
# We do not allow editing of previous versions of files |
# We do not allow editing of previous versions of files. |
|
if ($url=~/\.(\d+)\.(\w+)$/) { return ''; } |
if ($url=~/\.(\d+)\.(\w+)$/) { return ''; } |
my @possibledomains = &Apache::lonnet::current_machine_domains(); |
|
if ($ownername eq $env{'user.name'}) { |
# Get username and domain from URL |
foreach my $domain (@possibledomains) { |
my ($ownerdomain,$ownername)=($url=~/^(?:\/home\/httpd\/html\/|\/)priv\/($match_domain)\/($match_username)\//); |
if ($domain eq $env{'user.domain'}) { |
|
return ($ownername,$domain); |
# The URL does not really point to any authorspace, forget it |
} |
unless (($ownername) && ($ownerdomain)) { return ''; } |
|
|
|
# Now we need to see if the user has access to the authorspace of |
|
# $ownername at $ownerdomain |
|
|
|
if (($ownername eq $env{'user.name'}) && ($ownerdomain eq $env{'user.domain'})) { |
|
# Real author for this? |
|
if (exists($env{'user.priv.au./'.$ownerdomain.'/./'})) { |
|
return ($ownername,$ownerdomain); |
|
} |
|
} else { |
|
# Co-author for this? |
|
if (exists($env{'user.priv.ca./'.$ownerdomain.'/'.$ownername.'./'}) || |
|
exists($env{'user.priv.aa./'.$ownerdomain.'/'.$ownername.'./'}) ) { |
|
return ($ownername,$ownerdomain); |
} |
} |
} |
} |
|
# We don't have any access right now. If we are not possibly going to do anything about this, |
foreach my $domain (@possibledomains) { |
# we might as well leave |
if (exists($env{'user.priv.ca./'.$domain.'/'.$ownername.'./'}) || |
unless ($setpriv) { return ''; } |
exists($env{'user.priv.aa./'.$domain.'/'.$ownername.'./'}) ) { |
|
return ($ownername,$domain); |
# Backdoor access? |
} |
my $allowed=&Apache::lonnet::allowed('eco',$ownerdomain); |
|
# Nope |
|
unless ($allowed) { return ''; } |
|
# Looks like we may have access, but could be locked by the owner of the construction space |
|
if ($allowed eq 'U') { |
|
my %blocked=&Apache::lonnet::get('environment',['domcoord.author'], |
|
$ownerdomain,$ownername); |
|
# Is blocked by owner |
|
if ($blocked{'domcoord.author'} eq 'blocked') { return ''; } |
} |
} |
|
if (($allowed eq 'F') || ($allowed eq 'U')) { |
|
# Grant temporary access |
|
my $then=$env{'user.login.time'}; |
|
my $update==$env{'user.update.time'}; |
|
if (!$update) { $update = $then; } |
|
my $refresh=$env{'user.refresh.time'}; |
|
if (!$refresh) { $refresh = $update; } |
|
my $now = time; |
|
&Apache::lonnet::check_adhoc_privs($ownerdomain,$ownername, |
|
$update,$refresh,$now,'ca', |
|
'constructaccess'); |
|
return($ownername,$ownerdomain); |
|
} |
|
# No business here |
return ''; |
return ''; |
} |
} |
|
|
Line 82 sub handler {
|
Line 176 sub handler {
|
$env{'request.state'} = "construct"; |
$env{'request.state'} = "construct"; |
$env{'request.filename'} = $r->filename; |
$env{'request.filename'} = $r->filename; |
|
|
unless (&constructaccess($requrl,$r->dir_config('lonDefDomain'))) { |
unless (&constructaccess($requrl,'setpriv')) { |
$r->log_reason("Unauthorized $requrl", $r->filename); |
$r->log_reason("Unauthorized $requrl", $r->filename); |
return HTTP_NOT_ACCEPTABLE; |
return HTTP_NOT_ACCEPTABLE; |
} |
} |
Line 105 sub handler {
|
Line 199 sub handler {
|
1; |
1; |
__END__ |
__END__ |
|
|
=head1 NAME |
|
|
|
Apache::lonacc - Cookie Based Access Handler for Construction Area |
|
|
|
=head1 SYNOPSIS |
|
|
|
Invoked (for various locations) by /etc/httpd/conf/loncapa_apache.conf: |
|
|
|
PerlAccessHandler Apache::loncacc |
|
|
|
=head1 INTRODUCTION |
|
|
|
This module enables cookie based authentication for construction area |
|
and is used to control access for three (essentially equivalent) URIs. |
|
|
|
<LocationMatch "^/priv.*"> |
|
<LocationMatch "^/\~.*"> |
|
<LocationMatch "^/\~.*/$"> |
|
|
|
Whenever the client sends the cookie back to the server, |
|
if the cookie is missing or invalid, the user is re-challenged |
|
for login information. |
|
|
|
This is part of the LearningOnline Network with CAPA project |
|
described at http://www.lon-capa.org. |
|
|
|
=head1 HANDLER SUBROUTINE |
|
|
|
This routine is called by Apache and mod_perl. |
|
|
|
=over 4 |
|
|
|
=item * |
|
|
|
load POST parameters |
|
|
|
=item * |
|
|
|
store where they wanted to go (first url entered) |
|
|
|
=back |
|
|
|
=head1 OTHERSUBROUTINES |
|
|
|
=over 4 |
|
|
|
=item * |
|
|
|
constructaccess($url,$ownerdomain) : See if the owner domain and name |
|
in the URL match those in the expected environment. If so, return |
|
two element list ($ownername,$ownerdomain). Else, return null string. |
|
|
|
=back |
|
|
|
=cut |
|
|
|
|
|
|
|