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Diff for /loncom/auth/loncacc.pm between versions 1.19 and 1.26

version 1.19, 2002/01/04 14:57:14 version 1.26, 2003/04/03 21:32:23
Line 1 Line 1
 # The LearningOnline Network  # The LearningOnline Network
 # Cookie Based Access Handler for Construction Area  # Cookie Based Access Handler for Construction Area
 # (lonacc: 5/21/99,5/22,5/29,5/31 Gerd Kortemeyer)  # (lonacc: 5/21/99,5/22,5/29,5/31 Gerd Kortemeyer)
   #
   # $Id$
   #
   # Copyright Michigan State University Board of Trustees
   #
   # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
   #
   # LON-CAPA is free software; you can redistribute it and/or modify
   # it under the terms of the GNU General Public License as published by
   # the Free Software Foundation; either version 2 of the License, or
   # (at your option) any later version.
   #
   # LON-CAPA is distributed in the hope that it will be useful,
   # but WITHOUT ANY WARRANTY; without even the implied warranty of
   # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   # GNU General Public License for more details.
   #
   # You should have received a copy of the GNU General Public License
   # along with LON-CAPA; if not, write to the Free Software
   # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   #
   # /home/httpd/html/adm/gpl.txt
   #
   # http://www.lon-capa.org/
   #
   # YEAR=2000
 # 6/15,16/11,22/11,  # 6/15,16/11,22/11,
   # YEAR=2001
 # 01/06,01/11,6/1,9/25,9/28,11/22,12/25,12/26,  # 01/06,01/11,6/1,9/25,9/28,11/22,12/25,12/26,
 # 01/06/01,05/04,05/05,05/09 Gerd Kortemeyer  # 01/06/01,05/04,05/05,05/09 Gerd Kortemeyer
   # YEAR=2002
   # 1/4 Gerd Kortemeyer
   ###
   
 package Apache::loncacc;  package Apache::loncacc;
   
 use strict;  use strict;
 use Apache::Constants qw(:common :http :methods);  use Apache::Constants qw(:common :http :methods REDIRECT);
 use Apache::File;  use Apache::File;
 use CGI::Cookie();  use CGI::Cookie();
 use Fcntl qw(:flock);  use Fcntl qw(:flock);
Line 17  sub constructaccess { Line 47  sub constructaccess {
     my ($url,$ownerdomain)=@_;      my ($url,$ownerdomain)=@_;
     my ($ownername)=($url=~/\/(?:\~|priv\/|home\/)(\w+)/);      my ($ownername)=($url=~/\/(?:\~|priv\/|home\/)(\w+)/);
     unless (($ownername) && ($ownerdomain)) { return ''; }      unless (($ownername) && ($ownerdomain)) { return ''; }
       # We do not allow editing of previous versions of files.
       if ($url=~/\.(\d+)\.(\w+)$/) { return ''; }
     if (($ownername eq $ENV{'user.name'}) &&      if (($ownername eq $ENV{'user.name'}) &&
         ($ownerdomain eq $ENV{'user.domain'})) {          ($ownerdomain eq $ENV{'user.domain'})) {
  return ($ownername,$ownerdomain);   return ($ownername,$ownerdomain);
Line 26  sub constructaccess { Line 57  sub constructaccess {
     my $capriv='user.priv.ca./'.      my $capriv='user.priv.ca./'.
                $ownerdomain.'/'.$ownername.'./'.                 $ownerdomain.'/'.$ownername.'./'.
        $ownerdomain.'/'.$ownername;         $ownerdomain.'/'.$ownername;
     map {      foreach (keys %ENV) {
         if ($_ eq $capriv) {          if ($_ eq $capriv) {
            return ($ownername,$ownerdomain);             return ($ownername,$ownerdomain);
         }          }
     } keys %ENV;      }
   
     return '';      return '';
 }  }
Line 38  sub constructaccess { Line 69  sub constructaccess {
 sub handler {  sub handler {
     my $r = shift;      my $r = shift;
     my $requrl=$r->uri;      my $requrl=$r->uri;
       $ENV{'request.editurl'}=$requrl;
     my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));      my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
     my $lonid=$cookies{'lonID'};      my $lonid=$cookies{'lonID'};
     my $cookie;      my $cookie;
Line 67  sub handler { Line 99  sub handler {
                 $r->log_reason("Unauthorized $requrl", $r->filename);                   $r->log_reason("Unauthorized $requrl", $r->filename); 
         return HTTP_NOT_ACCEPTABLE;          return HTTP_NOT_ACCEPTABLE;
             }              }
   # Construction space needs Remote to work
               if ($ENV{'environment.remote'} eq 'off') {
           $r->content_type('text/html');
                   $r->header_out(Location => 
                       'http://'.$r->server->server_hostname.
                       '/adm/remote?action=launch&url='.
                       &Apache::lonnet::escape($requrl));
                   return REDIRECT;
               }
   
 # -------------------------------------------------------- Load POST parameters  # -------------------------------------------------------- Load POST parameters
   
Line 84  sub handler { Line 125  sub handler {
                $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;                 $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
                $name  =~ tr/+/ /;                 $name  =~ tr/+/ /;
                $name  =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;                 $name  =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
                $ENV{"form.$name"}=$value;         &Apache::loncommon::add_to_env("form.$name",$value);
             }               } 
         } else {          } else {
     my $contentsep=$1;      my $contentsep=$1;
Line 104  sub handler { Line 145  sub handler {
                         } else {                          } else {
                             $value=~s/\s+$//s;                              $value=~s/\s+$//s;
                         }                          }
                         $ENV{"form.$name"}=$value;   &Apache::loncommon::add_to_env("form.$name",$value);
                     }                      }
                     if ($i<$#lines) {                      if ($i<$#lines) {
  $i++;   $i++;
Line 132  sub handler { Line 173  sub handler {
                 }                  }
             }              }
  }   }
     $ENV{'request.method'}=$ENV{'REQUEST_METHOD'};              $ENV{'request.method'}=$ENV{'REQUEST_METHOD'};
             $r->method_number(M_GET);              $r->method_number(M_GET);
     $r->method('GET');      $r->method('GET');
             $r->headers_in->unset('Content-length');              $r->headers_in->unset('Content-length');
Line 152  sub handler { Line 193  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
   
   
   
Removed from v.1.19  
changed lines
  Added in v.1.26

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