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Session.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;
013
014 use Symfony\Component\HttpFoundation\Session\Storage\SessionStorageInterface;
015 use Symfony\Component\HttpFoundation\Session\Attribute\AttributeBag;
016 use Symfony\Component\HttpFoundation\Session\Attribute\AttributeBagInterface;
017 use Symfony\Component\HttpFoundation\Session\Flash\FlashBag;
018 use Symfony\Component\HttpFoundation\Session\Flash\FlashBagInterface;
019 use Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage;
020
021 /**
022 * Session.
023 *
024 * @author Fabien Potencier <fabien@symfony.com>
025 * @author Drak <drak@zikula.org>
026 *
027 * @api
028 */
029 class Session implements SessionInterface, \IteratorAggregate, \Countable
030 {
031 /**
032 * Storage driver.
033 *
034 * @var SessionStorageInterface
035 */
036 protected $storage;
037
038 /**
039 * @var string
040 */
041 private $flashName;
042
043 /**
044 * @var string
045 */
046 private $attributeName;
047
048 /**
049 * Constructor.
050 *
051 * @param SessionStorageInterface $storage A SessionStorageInterface instance.
052 * @param AttributeBagInterface $attributes An AttributeBagInterface instance, (defaults null for default AttributeBag)
053 * @param FlashBagInterface $flashes A FlashBagInterface instance (defaults null for default FlashBag)
054 */
055 public function __construct(SessionStorageInterface $storage = null, AttributeBagInterface $attributes = null, FlashBagInterface $flashes = null)
056 {
057 $this->storage = $storage ?: new NativeSessionStorage();
058
059 $attributes = $attributes ?: new AttributeBag();
060 $this->attributeName = $attributes->getName();
061 $this->registerBag($attributes);
062
063 $flashes = $flashes ?: new FlashBag();
064 $this->flashName = $flashes->getName();
065 $this->registerBag($flashes);
066 }
067
068 /**
069 * {@inheritdoc}
070 */
071 public function start()
072 {
073 return $this->storage->start();
074 }
075
076 /**
077 * {@inheritdoc}
078 */
079 public function has($name)
080 {
081 return $this->storage->getBag($this->attributeName)->has($name);
082 }
083
084 /**
085 * {@inheritdoc}
086 */
087 public function get($name, $default = null)
088 {
089 return $this->storage->getBag($this->attributeName)->get($name, $default);
090 }
091
092 /**
093 * {@inheritdoc}
094 */
095 public function set($name, $value)
096 {
097 $this->storage->getBag($this->attributeName)->set($name, $value);
098 }
099
100 /**
101 * {@inheritdoc}
102 */
103 public function all()
104 {
105 return $this->storage->getBag($this->attributeName)->all();
106 }
107
108 /**
109 * {@inheritdoc}
110 */
111 public function replace(array $attributes)
112 {
113 $this->storage->getBag($this->attributeName)->replace($attributes);
114 }
115
116 /**
117 * {@inheritdoc}
118 */
119 public function remove($name)
120 {
121 return $this->storage->getBag($this->attributeName)->remove($name);
122 }
123
124 /**
125 * {@inheritdoc}
126 */
127 public function clear()
128 {
129 $this->storage->getBag($this->attributeName)->clear();
130 }
131
132 /**
133 * {@inheritdoc}
134 */
135 public function isStarted()
136 {
137 return $this->storage->isStarted();
138 }
139
140 /**
141 * Returns an iterator for attributes.
142 *
143 * @return \ArrayIterator An \ArrayIterator instance
144 */
145 public function getIterator()
146 {
147 return new \ArrayIterator($this->storage->getBag($this->attributeName)->all());
148 }
149
150 /**
151 * Returns the number of attributes.
152 *
153 * @return int The number of attributes
154 */
155 public function count()
156 {
157 return count($this->storage->getBag($this->attributeName)->all());
158 }
159
160 /**
161 * {@inheritdoc}
162 */
163 public function invalidate($lifetime = null)
164 {
165 $this->storage->clear();
166
167 return $this->migrate(true, $lifetime);
168 }
169
170 /**
171 * {@inheritdoc}
172 */
173 public function migrate($destroy = false, $lifetime = null)
174 {
175 return $this->storage->regenerate($destroy, $lifetime);
176 }
177
178 /**
179 * {@inheritdoc}
180 */
181 public function save()
182 {
183 $this->storage->save();
184 }
185
186 /**
187 * {@inheritdoc}
188 */
189 public function getId()
190 {
191 return $this->storage->getId();
192 }
193
194 /**
195 * {@inheritdoc}
196 */
197 public function setId($id)
198 {
199 $this->storage->setId($id);
200 }
201
202 /**
203 * {@inheritdoc}
204 */
205 public function getName()
206 {
207 return $this->storage->getName();
208 }
209
210 /**
211 * {@inheritdoc}
212 */
213 public function setName($name)
214 {
215 $this->storage->setName($name);
216 }
217
218 /**
219 * {@inheritdoc}
220 */
221 public function getMetadataBag()
222 {
223 return $this->storage->getMetadataBag();
224 }
225
226 /**
227 * {@inheritdoc}
228 */
229 public function registerBag(SessionBagInterface $bag)
230 {
231 $this->storage->registerBag($bag);
232 }
233
234 /**
235 * {@inheritdoc}
236 */
237 public function getBag($name)
238 {
239 return $this->storage->getBag($name);
240 }
241
242 /**
243 * Gets the flashbag interface.
244 *
245 * @return FlashBagInterface
246 */
247 public function getFlashBag()
248 {
249 return $this->getBag($this->flashName);
250 }
251 }
252