projects / github / wallabag / wallabag.git / blame
| Commit | Line | Data |
|---|---|---|
| d4949327 NL |
1 | <?php\r |
| 2 | \r | |
| 3 | /**\r | |
| 4 | * Responsible for creating definition caches.\r | |
| 5 | */\r | |
| 6 | class HTMLPurifier_DefinitionCacheFactory\r | |
| 7 | {\r | |
| 8 | /**\r | |
| 9 | * @type array\r | |
| 10 | */\r | |
| 11 | protected $caches = array('Serializer' => array());\r | |
| 12 | \r | |
| 13 | /**\r | |
| 14 | * @type array\r | |
| 15 | */\r | |
| 16 | protected $implementations = array();\r | |
| 17 | \r | |
| 18 | /**\r | |
| 19 | * @type HTMLPurifier_DefinitionCache_Decorator[]\r | |
| 20 | */\r | |
| 21 | protected $decorators = array();\r | |
| 22 | \r | |
| 23 | /**\r | |
| 24 | * Initialize default decorators\r | |
| 25 | */\r | |
| 26 | public function setup()\r | |
| 27 | {\r | |
| 28 | $this->addDecorator('Cleanup');\r | |
| 29 | }\r | |
| 30 | \r | |
| 31 | /**\r | |
| 32 | * Retrieves an instance of global definition cache factory.\r | |
| 33 | * @param HTMLPurifier_DefinitionCacheFactory $prototype\r | |
| 34 | * @return HTMLPurifier_DefinitionCacheFactory\r | |
| 35 | */\r | |
| 36 | public static function instance($prototype = null)\r | |
| 37 | {\r | |
| 38 | static $instance;\r | |
| 39 | if ($prototype !== null) {\r | |
| 40 | $instance = $prototype;\r | |
| 41 | } elseif ($instance === null || $prototype === true) {\r | |
| 42 | $instance = new HTMLPurifier_DefinitionCacheFactory();\r | |
| 43 | $instance->setup();\r | |
| 44 | }\r | |
| 45 | return $instance;\r | |
| 46 | }\r | |
| 47 | \r | |
| 48 | /**\r | |
| 49 | * Registers a new definition cache object\r | |
| 50 | * @param string $short Short name of cache object, for reference\r | |
| 51 | * @param string $long Full class name of cache object, for construction\r | |
| 52 | */\r | |
| 53 | public function register($short, $long)\r | |
| 54 | {\r | |
| 55 | $this->implementations[$short] = $long;\r | |
| 56 | }\r | |
| 57 | \r | |
| 58 | /**\r | |
| 59 | * Factory method that creates a cache object based on configuration\r | |
| 60 | * @param string $type Name of definitions handled by cache\r | |
| 61 | * @param HTMLPurifier_Config $config Config instance\r | |
| 62 | * @return mixed\r | |
| 63 | */\r | |
| 64 | public function create($type, $config)\r | |
| 65 | {\r | |
| 66 | $method = $config->get('Cache.DefinitionImpl');\r | |
| 67 | if ($method === null) {\r | |
| 68 | return new HTMLPurifier_DefinitionCache_Null($type);\r | |
| 69 | }\r | |
| 70 | if (!empty($this->caches[$method][$type])) {\r | |
| 71 | return $this->caches[$method][$type];\r | |
| 72 | }\r | |
| 73 | if (isset($this->implementations[$method]) &&\r | |
| 74 | class_exists($class = $this->implementations[$method], false)) {\r | |
| 75 | $cache = new $class($type);\r | |
| 76 | } else {\r | |
| 77 | if ($method != 'Serializer') {\r | |
| 78 | trigger_error("Unrecognized DefinitionCache $method, using Serializer instead", E_USER_WARNING);\r | |
| 79 | }\r | |
| 80 | $cache = new HTMLPurifier_DefinitionCache_Serializer($type);\r | |
| 81 | }\r | |
| 82 | foreach ($this->decorators as $decorator) {\r | |
| 83 | $new_cache = $decorator->decorate($cache);\r | |
| 84 | // prevent infinite recursion in PHP 4\r | |
| 85 | unset($cache);\r | |
| 86 | $cache = $new_cache;\r | |
| 87 | }\r | |
| 88 | $this->caches[$method][$type] = $cache;\r | |
| 89 | return $this->caches[$method][$type];\r | |
| 90 | }\r | |
| 91 | \r | |
| 92 | /**\r | |
| 93 | * Registers a decorator to add to all new cache objects\r | |
| 94 | * @param HTMLPurifier_DefinitionCache_Decorator|string $decorator An instance or the name of a decorator\r | |
| 95 | */\r | |
| 96 | public function addDecorator($decorator)\r | |
| 97 | {\r | |
| 98 | if (is_string($decorator)) {\r | |
| 99 | $class = "HTMLPurifier_DefinitionCache_Decorator_$decorator";\r | |
| 100 | $decorator = new $class;\r | |
| 101 | }\r | |
| 102 | $this->decorators[$decorator->name] = $decorator;\r | |
| 103 | }\r | |
| 104 | }\r | |
| 105 | \r | |
| 106 | // vim: et sw=4 sts=4\r |