161 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			161 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
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| 
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| /*
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|  * This file is part of the Symfony package.
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|  *
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|  * (c) Fabien Potencier <fabien@symfony.com>
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|  *
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|  * For the full copyright and license information, please view the LICENSE
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|  * file that was distributed with this source code.
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|  */
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| 
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| namespace Symfony\Component\HttpFoundation\Session\Attribute;
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| 
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| /**
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|  * This class provides structured storage of session attributes using
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|  * a name spacing character in the key.
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|  *
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|  * @author Drak <drak@zikula.org>
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|  */
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| class NamespacedAttributeBag extends AttributeBag
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| {
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|     /**
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|      * Namespace character.
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|      *
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|      * @var string
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|      */
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|     private $namespaceCharacter;
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| 
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|     /**
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|      * Constructor.
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|      *
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|      * @param string $storageKey         Session storage key.
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|      * @param string $namespaceCharacter Namespace character to use in keys.
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|      */
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|     public function __construct($storageKey = '_sf2_attributes', $namespaceCharacter = '/')
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|     {
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|         $this->namespaceCharacter = $namespaceCharacter;
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|         parent::__construct($storageKey);
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      */
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|     public function has($name)
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|     {
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|         // reference mismatch: if fixed, re-introduced in array_key_exists; keep as it is
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|         $attributes = $this->resolveAttributePath($name);
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|         $name = $this->resolveKey($name);
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| 
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|         if (null === $attributes) {
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|             return false;
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|         }
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| 
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|         return array_key_exists($name, $attributes);
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      */
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|     public function get($name, $default = null)
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|     {
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|         // reference mismatch: if fixed, re-introduced in array_key_exists; keep as it is
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|         $attributes = $this->resolveAttributePath($name);
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|         $name = $this->resolveKey($name);
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| 
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|         if (null === $attributes) {
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|             return $default;
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|         }
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| 
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|         return array_key_exists($name, $attributes) ? $attributes[$name] : $default;
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      */
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|     public function set($name, $value)
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|     {
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|         $attributes = &$this->resolveAttributePath($name, true);
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|         $name = $this->resolveKey($name);
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|         $attributes[$name] = $value;
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      */
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|     public function remove($name)
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|     {
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|         $retval = null;
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|         $attributes = &$this->resolveAttributePath($name);
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|         $name = $this->resolveKey($name);
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|         if (null !== $attributes && array_key_exists($name, $attributes)) {
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|             $retval = $attributes[$name];
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|             unset($attributes[$name]);
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|         }
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| 
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|         return $retval;
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|     }
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| 
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|     /**
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|      * Resolves a path in attributes property and returns it as a reference.
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|      *
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|      * This method allows structured namespacing of session attributes.
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|      *
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|      * @param string $name         Key name
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|      * @param bool   $writeContext Write context, default false
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|      *
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|      * @return array
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|      */
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|     protected function &resolveAttributePath($name, $writeContext = false)
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|     {
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|         $array = &$this->attributes;
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|         $name = (strpos($name, $this->namespaceCharacter) === 0) ? substr($name, 1) : $name;
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| 
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|         // Check if there is anything to do, else return
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|         if (!$name) {
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|             return $array;
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|         }
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| 
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|         $parts = explode($this->namespaceCharacter, $name);
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|         if (count($parts) < 2) {
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|             if (!$writeContext) {
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|                 return $array;
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|             }
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| 
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|             $array[$parts[0]] = array();
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| 
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|             return $array;
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|         }
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| 
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|         unset($parts[count($parts) - 1]);
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| 
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|         foreach ($parts as $part) {
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|             if (null !== $array && !array_key_exists($part, $array)) {
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|                 $array[$part] = $writeContext ? array() : null;
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|             }
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| 
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|             $array = &$array[$part];
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|         }
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| 
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|         return $array;
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|     }
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| 
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|     /**
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|      * Resolves the key from the name.
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|      *
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|      * This is the last part in a dot separated string.
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|      *
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|      * @param string $name
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|      *
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|      * @return string
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|      */
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|     protected function resolveKey($name)
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|     {
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|         if (false !== $pos = strrpos($name, $this->namespaceCharacter)) {
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|             $name = substr($name, $pos + 1);
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|         }
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| 
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|         return $name;
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|     }
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| }
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