summaryrefslogtreecommitdiff
path: root/plugins/CasAuthentication/CasAuthenticationPlugin.php
blob: 26f21af16029bb242b69a42216ad666d296b66b0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
<?php
/**
 * StatusNet, the distributed open-source microblogging tool
 *
 * Plugin to enable Single Sign On via CAS (Central Authentication Service)
 *
 * PHP version 5
 *
 * LICENCE: This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @category  Plugin
 * @package   StatusNet
 * @author    Craig Andrews <candrews@integralblue.com>
 * @copyright 2009 Craig Andrews http://candrews.integralblue.com
 * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
 * @link      http://status.net/
 */

if (!defined('STATUSNET') && !defined('LACONICA')) {
    exit(1);
}

// We bundle the phpCAS library...
set_include_path(get_include_path() . PATH_SEPARATOR . dirname(__FILE__) . '/extlib/CAS');

class CasAuthenticationPlugin extends AuthenticationPlugin
{
    public $server;
    public $port = 443;
    public $path = '';
    public $takeOverLogin = false;

    function checkPassword($username, $password)
    {
        global $casTempPassword;
        return ($casTempPassword == $password);
    }

    function onAutoload($cls)
    {
        switch ($cls)
        {
         case 'phpCAS':
            require_once(INSTALLDIR.'/plugins/CasAuthentication/extlib/CAS.php');
            return false;
         case 'CasloginAction':
            require_once(INSTALLDIR.'/plugins/CasAuthentication/' . strtolower(mb_substr($cls, 0, -6)) . '.php');
            return false;
         default:
            return parent::onAutoload($cls);
        }
    }

    function onArgsInitialize(&$args)
    {
        if($this->takeOverLogin && $args['action'] == 'login')
        {
            $args['action'] = 'caslogin';
        }
    }

    function onStartInitializeRouter($m)
    {
        $m->connect('main/cas', array('action' => 'caslogin'));
        return true;
    }

    function onEndLoginGroupNav(&$action)
    {
        $action_name = $action->trimmed('action');

        $action->menuItem(common_local_url('caslogin'),
                          _m('CAS'),
                          _m('Login or register with CAS'),
                          $action_name === 'caslogin');

        return true;
    }

    function onEndShowPageNotice($action)
    {
        $name = $action->trimmed('action');

        switch ($name)
        {
         case 'login':
            $instr = '(Have an account with CAS? ' .
              'Try our [CAS login]'.
              '(%%action.caslogin%%)!)';
            break;
         default:
            return true;
        }

        $output = common_markup_to_html($instr);
        $action->raw($output);
        return true;
    }

    function onLoginAction($action, &$login)
    {
        switch ($action)
        {
         case 'caslogin':
            $login = true;
            return false;
         default:
            return true;
        }
    }

    function onInitializePlugin(){
        parent::onInitializePlugin();
        if(!isset($this->server)){
            throw new Exception("must specify a server");
        }
        if(!isset($this->port)){
            throw new Exception("must specify a port");
        }
        if(!isset($this->path)){
            throw new Exception("must specify a path");
        }
        //These values need to be accessible to a action object
        //I can't think of any other way than global variables
        //to allow the action instance to be able to see values :-(
        global $casSettings;
        $casSettings = array();
        $casSettings['server']=$this->server;
        $casSettings['port']=$this->port;
        $casSettings['path']=$this->path;
    }
}