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MockFileSessionStorage.php
001 <?php
002
003 /*
004 * This file is part of the Symfony package.
005 *
006 * (c) Fabien Potencier <fabien@symfony.com>
007 *
008 * For the full copyright and license information, please view the LICENSE
009 * file that was distributed with this source code.
010 */
011
012 namespace Symfony\Component\HttpFoundation\Session\Storage;
013
014 /**
015 * MockFileSessionStorage is used to mock sessions for
016 * functional testing when done in a single PHP process.
017 *
018 * No PHP session is actually started since a session can be initialized
019 * and shutdown only once per PHP execution cycle and this class does
020 * not pollute any session related globals, including session_*() functions
021 * or session.* PHP ini directives.
022 *
023 * @author Drak <drak@zikula.org>
024 */
025 class MockFileSessionStorage extends MockArraySessionStorage
026 {
027 private $savePath;
028
029 /**
030 * @param string $savePath Path of directory to save session files
031 * @param string $name Session name
032 * @param MetadataBag $metaBag MetadataBag instance
033 */
034 public function __construct($savePath = null, $name = 'MOCKSESSID', MetadataBag $metaBag = null)
035 {
036 if (null === $savePath) {
037 $savePath = sys_get_temp_dir();
038 }
039
040 if (!is_dir($savePath) && !@mkdir($savePath, 0777, true) && !is_dir($savePath)) {
041 throw new \RuntimeException(sprintf('Session Storage was not able to create directory "%s".', $savePath));
042 }
043
044 $this->savePath = $savePath;
045
046 parent::__construct($name, $metaBag);
047 }
048
049 /**
050 * {@inheritdoc}
051 */
052 public function start()
053 {
054 if ($this->started) {
055 return true;
056 }
057
058 if (!$this->id) {
059 $this->id = $this->generateId();
060 }
061
062 $this->read();
063
064 $this->started = true;
065
066 return true;
067 }
068
069 /**
070 * {@inheritdoc}
071 */
072 public function regenerate($destroy = false, $lifetime = null)
073 {
074 if (!$this->started) {
075 $this->start();
076 }
077
078 if ($destroy) {
079 $this->destroy();
080 }
081
082 return parent::regenerate($destroy, $lifetime);
083 }
084
085 /**
086 * {@inheritdoc}
087 */
088 public function save()
089 {
090 if (!$this->started) {
091 throw new \RuntimeException('Trying to save a session that was not started yet or was already closed.');
092 }
093
094 $data = $this->data;
095
096 foreach ($this->bags as $bag) {
097 if (empty($data[$key = $bag->getStorageKey()])) {
098 unset($data[$key]);
099 }
100 }
101 if ([$key = $this->metadataBag->getStorageKey()] === array_keys($data)) {
102 unset($data[$key]);
103 }
104
105 try {
106 if ($data) {
107 file_put_contents($this->getFilePath(), serialize($data));
108 } else {
109 $this->destroy();
110 }
111 } finally {
112 $this->data = $data;
113 }
114
115 // this is needed for Silex, where the session object is re-used across requests
116 // in functional tests. In Symfony, the container is rebooted, so we don't have
117 // this issue
118 $this->started = false;
119 }
120
121 /**
122 * Deletes a session from persistent storage.
123 * Deliberately leaves session data in memory intact.
124 */
125 private function destroy()
126 {
127 if (is_file($this->getFilePath())) {
128 unlink($this->getFilePath());
129 }
130 }
131
132 /**
133 * Calculate path to file.
134 *
135 * @return string File path
136 */
137 private function getFilePath()
138 {
139 return $this->savePath.'/'.$this->id.'.mocksess';
140 }
141
142 /**
143 * Reads session from storage and loads session.
144 */
145 private function read()
146 {
147 $filePath = $this->getFilePath();
148 $this->data = is_readable($filePath) && is_file($filePath) ? unserialize(file_get_contents($filePath)) : [];
149
150 $this->loadSession();
151 }
152 }
153