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