version 1.9, 2000/09/25 20:34:28
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version 1.61, 2013/06/04 23:12:13
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# The LearningOnline Network |
# The LearningOnline Network |
# Cookie Based Access Handler for Construction Area |
# Cookie Based Access Handler for Authoring Spaces |
# (lonacc: 5/21/99,5/22,5/29,5/31 Gerd Kortemeyer) |
# (lonacc: 5/21/99,5/22,5/29,5/31 Gerd Kortemeyer) |
# 6/15,16/11,22/11, |
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# 01/06,01/11,6/1,9/25 Gerd Kortemeyer |
# $Id$ |
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# |
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# Copyright Michigan State University Board of Trustees |
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# |
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# This file is part of the LearningOnline Network with CAPA (LON-CAPA). |
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# |
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# LON-CAPA is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# LON-CAPA is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with LON-CAPA; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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# /home/httpd/html/adm/gpl.txt |
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# |
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# http://www.lon-capa.org/ |
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# |
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=pod |
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=head1 NAME |
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Apache::lonacc - Cookie Based Access Handler for Authoring Spaces |
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=head1 SYNOPSIS |
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Invoked (for various locations) by /etc/httpd/conf/loncapa_apache.conf: |
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PerlAccessHandler Apache::loncacc |
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=head1 INTRODUCTION |
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This module enables cookie based authentication for construction area |
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and is used to control access for the following two types of URI |
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(one for files, and one for directories): |
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<LocationMatch "^/priv.*"> |
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<LocationMatch "^/priv.*/$"> |
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Whenever the client sends the cookie back to the server, |
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if the cookie is missing or invalid, the user is re-challenged |
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for login information. |
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This is part of the LearningOnline Network with CAPA project |
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described at http://www.lon-capa.org. |
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=head1 HANDLER SUBROUTINE |
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This routine is called by Apache and mod_perl. |
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=over 4 |
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=item * |
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load POST parameters |
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=item * |
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store where they wanted to go (first url entered) |
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=back |
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=cut |
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package Apache::loncacc; |
package Apache::loncacc; |
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use strict; |
use strict; |
use Apache::Constants qw(:common :http :methods); |
use Apache::Constants qw(:common :http :methods REDIRECT); |
use Apache::File; |
use Fcntl qw(:flock); |
use CGI::Cookie(); |
use Apache::lonlocal; |
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use Apache::lonnet; |
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use Apache::lonacc; |
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use LONCAPA qw(:DEFAULT :match); |
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sub handler { |
sub handler { |
my $r = shift; |
my $r = shift; |
my $requrl=$r->uri; |
my $requrl=$r->uri; |
my %cookies=CGI::Cookie->parse($r->header_in('Cookie')); |
$env{'request.editurl'}=$requrl; |
my $lonid=$cookies{'lonID'}; |
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my $cookie; |
my $handle = &Apache::lonnet::check_for_valid_session($r); |
if ($lonid) { |
if ($handle ne '') { |
my $handle=$lonid->value; |
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$handle=~s/\W//g; |
# ------------------------------------------------------ Initialize Environment |
my $lonidsdir=$r->dir_config('lonIDsDir'); |
my $lonidsdir=$r->dir_config('lonIDsDir'); |
if ((-e "$lonidsdir/$handle.id") && ($handle ne '')) { |
&Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle); |
my $ownername=$requrl; |
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$ownername=~s/\/\~(\w+).*/\1/; |
# --------------------------------------------------------- Initialize Language |
my $ownerdomain=$r->dir_config('lonDefDomain'); |
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my @handleparts=split(/\_/,$handle); |
&Apache::lonlocal::get_language_handle($r); |
my $username=$handleparts[0]; |
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my $domain=$handleparts[2]; |
# -------------------------------------------------------------- Resource State |
if (($username ne $ownername) || ($domain ne $ownerdomain)) { |
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$r->log_reason |
$env{'request.state'} = "construct"; |
("$username at $domain not authorized", $r->filename); |
$env{'request.filename'} = $r->filename; |
return HTTP_NOT_ACCEPTABLE; |
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} |
my $allowed; |
my @profile; |
my ($ownername,$ownerdom,$ownerhome) = |
{ |
&Apache::lonnet::constructaccess($requrl,'setpriv'); |
my $idf=Apache::File->new("$lonidsdir/$handle.id"); |
if (($ownername ne '') && ($ownerdom ne '') && ($ownerhome ne '')) { |
@profile=<$idf>; |
unless ($ownerhome eq 'no_host') { |
} |
my @hosts = &Apache::lonnet::current_machine_ids(); |
my $envi; |
if (grep(/^\Q$ownerhome\E$/,@hosts)) { |
for ($envi=0;$envi<=$#profile;$envi++) { |
$allowed = 1; |
chomp($profile[$envi]); |
} |
my ($envname,$envvalue)=split(/=/,$profile[$envi]); |
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$ENV{$envname} = $envvalue; |
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} |
} |
$ENV{'user.environment'} = "$lonidsdir/$handle.id"; |
} |
$ENV{'request.state'} = "construct"; |
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$ENV{'request.filename'} = $r->filename; |
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# -------------------------------------------------------- Load POST parameters |
unless ($allowed) { |
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$r->log_reason("Unauthorized $requrl", $r->filename); |
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return HTTP_NOT_ACCEPTABLE; |
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} |
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# -------------------------------------------------------- Load POST parameters |
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my $buffer; |
&Apache::lonacc::get_posted_cgi($r); |
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$r->read($buffer,$r->header_in('Content-length')); |
return OK; |
my @pairs=split(/&/,$buffer); |
} else { |
my $pair; |
$r->log_reason("Cookie $handle not valid", $r->filename) |
foreach $pair (@pairs) { |
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my ($name,$value) = split(/=/,$pair); |
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$value =~ tr/+/ /; |
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$value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; |
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$ENV{"form.$name"}=$value; |
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} |
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$r->method_number(M_GET); |
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$r->method('GET'); |
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$r->headers_in->unset('Content-length'); |
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return OK; |
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} else { |
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$r->log_reason("Cookie $handle not valid", $r->filename) |
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}; |
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} |
} |
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# ----------------------------------------------- Store where they wanted to go |
# ----------------------------------------------- Store where they wanted to go |
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$ENV{'request.firsturl'}=$requrl; |
$env{'request.firsturl'}=$requrl; |
return FORBIDDEN; |
return FORBIDDEN; |
} |
} |
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1; |
1; |
__END__ |
__END__ |
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