1: <?php
2:
3: // include the config file
4: if(!isset($config)) {
5: require_once '../util/AlphaConfig.inc';
6: $config = AlphaConfig::getInstance();
7:
8: require_once $config->get('app.root').'alpha/util/AlphaAutoLoader.inc';
9: }
10:
11: /**
12: *
13: * Logout controller that removes the current user object from the session
14: *
15: * @package alpha::controller
16: * @since 1.0
17: * @author John Collins <dev@alphaframework.org>
18: * @version $Id: Logout.php 1548 2012-07-29 17:07:07Z alphadevx $
19: * @license http://www.opensource.org/licenses/bsd-license.php The BSD License
20: * @copyright Copyright (c) 2012, John Collins (founder of Alpha Framework).
21: * All rights reserved.
22: *
23: * <pre>
24: * Redistribution and use in source and binary forms, with or
25: * without modification, are permitted provided that the
26: * following conditions are met:
27: *
28: * * Redistributions of source code must retain the above
29: * copyright notice, this list of conditions and the
30: * following disclaimer.
31: * * Redistributions in binary form must reproduce the above
32: * copyright notice, this list of conditions and the
33: * following disclaimer in the documentation and/or other
34: * materials provided with the distribution.
35: * * Neither the name of the Alpha Framework nor the names
36: * of its contributors may be used to endorse or promote
37: * products derived from this software without specific
38: * prior written permission.
39: *
40: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
41: * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
42: * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
43: * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
44: * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
45: * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
46: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
47: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
48: * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
49: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
50: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
51: * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
52: * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
53: * </pre>
54: *
55: */
56: class Logout extends AlphaController implements AlphaControllerInterface {
57: /**
58: * Trace logger
59: *
60: * @var Logger
61: * @since 1.0
62: */
63: private static $logger = null;
64:
65: /**
66: * constructor to set up the object
67: *
68: * @since 1.0
69: */
70: public function __construct() {
71: self::$logger = new Logger('Logout');
72: self::$logger->debug('>>__construct()');
73:
74: // ensure that the super class constructor is called, indicating the rights group
75: parent::__construct('Public');
76:
77: if(isset($_SESSION['currentUser']))
78: $this->setBO($_SESSION['currentUser']);
79: else
80: self::$logger->warn('Logout controller called when no user is logged in');
81:
82: // set up the title and meta details
83: $this->setTitle('Logged out successfully.');
84: $this->setDescription('Logout page.');
85: $this->setKeywords('Logout,logon');
86:
87: self::$logger->debug('<<__construct');
88: }
89:
90: /**
91: * Handle POST requests (adds $currentUser PersonObject to the session)
92: *
93: * @param array $params
94: * @since 1.0
95: */
96: public function doPOST($params) {
97: self::$logger->debug('>>doPOST($params=['.var_export($params, true).'])');
98:
99: self::$logger->debug('<<doPOST');
100: }
101:
102: /**
103: * Handle GET requests
104: *
105: * @param array $params
106: * @since 1.0
107: * @throws AlphaException
108: */
109: public function doGET($params) {
110: self::$logger->debug('>>doGET($params=['.var_export($params, true).'])');
111:
112: global $config;
113:
114: if($this->BO instanceof PersonObject)
115: self::$logger->info('Logging out ['.$this->BO->get('email').'] at ['.date("Y-m-d H:i:s").']');
116:
117: $_SESSION = array();
118:
119: session_destroy();
120:
121: echo AlphaView::displayPageHead($this);
122:
123: echo AlphaView::displayUpdateMessage('You have successfully logged out of the system.');
124:
125: echo '<div align="center"><a href="'.$config->get('app.url').'">Home Page</a></div>';
126:
127: echo AlphaView::displayPageFoot($this);
128:
129: self::$logger->debug('<<doGET');
130: }
131: }
132:
133: // now build the new controller if this file is called directly
134: if ('Logout.php' == basename($_SERVER['PHP_SELF'])) {
135: $controller = new Logout();
136:
137: if(!empty($_POST)) {
138: $controller->doPOST($_POST);
139: }else{
140: $controller->doGET($_GET);
141: }
142: }
143:
144: ?>