Verzeichnisstruktur phpBB-3.2.0
- Veröffentlicht
- 06.01.2017
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NamespacedAttributeBag.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\Attribute;
013
014 /**
015 * This class provides structured storage of session attributes using
016 * a name spacing character in the key.
017 *
018 * @author Drak <drak@zikula.org>
019 */
020 class NamespacedAttributeBag extends AttributeBag
021 {
022 /**
023 * Namespace character.
024 *
025 * @var string
026 */
027 private $namespaceCharacter;
028
029 /**
030 * Constructor.
031 *
032 * @param string $storageKey Session storage key
033 * @param string $namespaceCharacter Namespace character to use in keys
034 */
035 public function __construct($storageKey = '_sf2_attributes', $namespaceCharacter = '/')
036 {
037 $this->namespaceCharacter = $namespaceCharacter;
038 parent::__construct($storageKey);
039 }
040
041 /**
042 * {@inheritdoc}
043 */
044 public function has($name)
045 {
046 // reference mismatch: if fixed, re-introduced in array_key_exists; keep as it is
047 $attributes = $this->resolveAttributePath($name);
048 $name = $this->resolveKey($name);
049
050 if (null === $attributes) {
051 return false;
052 }
053
054 return array_key_exists($name, $attributes);
055 }
056
057 /**
058 * {@inheritdoc}
059 */
060 public function get($name, $default = null)
061 {
062 // reference mismatch: if fixed, re-introduced in array_key_exists; keep as it is
063 $attributes = $this->resolveAttributePath($name);
064 $name = $this->resolveKey($name);
065
066 if (null === $attributes) {
067 return $default;
068 }
069
070 return array_key_exists($name, $attributes) ? $attributes[$name] : $default;
071 }
072
073 /**
074 * {@inheritdoc}
075 */
076 public function set($name, $value)
077 {
078 $attributes = &$this->resolveAttributePath($name, true);
079 $name = $this->resolveKey($name);
080 $attributes[$name] = $value;
081 }
082
083 /**
084 * {@inheritdoc}
085 */
086 public function remove($name)
087 {
088 $retval = null;
089 $attributes = &$this->resolveAttributePath($name);
090 $name = $this->resolveKey($name);
091 if (null !== $attributes && array_key_exists($name, $attributes)) {
092 $retval = $attributes[$name];
093 unset($attributes[$name]);
094 }
095
096 return $retval;
097 }
098
099 /**
100 * Resolves a path in attributes property and returns it as a reference.
101 *
102 * This method allows structured namespacing of session attributes.
103 *
104 * @param string $name Key name
105 * @param bool $writeContext Write context, default false
106 *
107 * @return array
108 */
109 protected function &resolveAttributePath($name, $writeContext = false)
110 {
111 $array = &$this->attributes;
112 $name = (strpos($name, $this->namespaceCharacter) === 0) ? substr($name, 1) : $name;
113
114 // Check if there is anything to do, else return
115 if (!$name) {
116 return $array;
117 }
118
119 $parts = explode($this->namespaceCharacter, $name);
120 if (count($parts) < 2) {
121 if (!$writeContext) {
122 return $array;
123 }
124
125 $array[$parts[0]] = array();
126
127 return $array;
128 }
129
130 unset($parts[count($parts) - 1]);
131
132 foreach ($parts as $part) {
133 if (null !== $array && !array_key_exists($part, $array)) {
134 $array[$part] = $writeContext ? array() : null;
135 }
136
137 $array = &$array[$part];
138 }
139
140 return $array;
141 }
142
143 /**
144 * Resolves the key from the name.
145 *
146 * This is the last part in a dot separated string.
147 *
148 * @param string $name
149 *
150 * @return string
151 */
152 protected function resolveKey($name)
153 {
154 if (false !== $pos = strrpos($name, $this->namespaceCharacter)) {
155 $name = substr($name, $pos + 1);
156 }
157
158 return $name;
159 }
160 }
161