Return to lonuploadedacc.pm CVS log

Up to [LON-CAPA] / loncom / auth

Annotation of loncom/auth/lonuploadedacc.pm, revision 1.15

1.1       www         1: # The LearningOnline Network
                      2: # Access Handler for User Files
                      3: #
1.15    ! jms         4: # $Id: lonuploadedacc.pm,v 1.14 2008/11/12 20:01:09 jms Exp $
1.1       www         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: 
1.14      jms        29: 
                     30: 
1.1       www        31: package Apache::lonuploadedacc;
                     32: 
1.7       www        33: 
1.1       www        34: use strict;
1.10      albertel   35: use Apache::Constants qw(:common :http);
1.12      albertel   36: use Apache::lonnet;
1.1       www        37: 
                     38: sub handler {
                     39:     my $r = shift;
1.2       www        40:     my $args=$r->args;
1.7       www        41:     &Apache::loncommon::get_unprocessed_cgi($args,['token','tokenissued']); 
1.11      albertel   42:     my (undef,undef,$udom,$uname,$ufile)=split(/\//,$r->uri,5);
1.2       www        43:     $ufile=~s/^[\~\.]+//;
1.12      albertel   44:     my $remoteserver=$env{'form.tokenissued'};
1.2       www        45:     my $reply=&Apache::lonnet::reply('tokenauthuserfile:'.
1.12      albertel   46:                  $udom.'/'.$uname.'/'.$ufile.':'.$env{'form.token'},
1.4       albertel   47: 				     $remoteserver);
1.2       www        48:     if ($reply eq 'ok') {
                     49:        return OK;
1.10      albertel   50:    } elsif ($reply eq 'con_lost' || $reply eq 'no_such_host') {
1.12      albertel   51:        &Apache::lonnet::logthis("Server unavailable for userfile access $uname at $udom for $ufile with $remoteserver token $env{'form.token'}: $reply");
1.10      albertel   52:        return HTTP_SERVICE_UNAVAILABLE;
1.2       www        53:    } else {
1.12      albertel   54:        &Apache::lonnet::logthis("Refused userfile access $uname at $udom for $ufile with $remoteserver token $env{'form.token'}: $reply");
1.2       www        55:        return FORBIDDEN;
                     56:    }
1.1       www        57: }
                     58: 
1.13      albertel   59: sub skip_phase {
                     60:     return OK;
                     61: }
                     62: 
1.1       www        63: 1;
                     64: __END__
                     65: 
                     66: 
                     67: 
1.15    ! jms        68: =head1 NAME
        !            69: 
        !            70: Apache::lonuploadedacc
        !            71: 
        !            72: =head1 SYNOPSIS
        !            73: 
        !            74: The way this is supposed to work:
        !            75: 
        !            76:  User A has client machine C 
        !            77:  User A is logged into LON-CAPA server S
        !            78:  needs file from user B
        !            79:  homeserver for user B is H
1.1       www        80: 
1.15    ! jms        81: This is part of the LearningOnline Network with CAPA project
        !            82: described at http://www.lon-capa.org.
        !            83: 
        !            84: =head1 HANDLER SUBROUTINE
        !            85: 
        !            86: This handler runs on H
        !            87: To access a userfile:
        !            88: Server S generates a token and puts it into the query string of URL for H
        !            89: Client box C asks H for file with token issued by C
        !            90: H now must ask S if token is valid, uses S's lond-command tokenauthuserfile
        !            91: 
        !            92: =cut
1.1       www        93: 
                     94: 
                     95: