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<?php |
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/** |
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* Cache |
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* |
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* @author Alexey Krupskiy <[email protected]> |
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* @link http://inji.ru/ |
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* @copyright 2015 Alexey Krupskiy |
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* @license https://github.com/injitools/cms-Inji/blob/master/LICENSE |
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*/ |
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class Cache { |
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/** |
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* Connection to a set of memcache servers |
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* |
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* @var Memcache |
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*/ |
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public static $server = null; |
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/** |
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* Truing to connect flag |
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* |
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* @var boolean |
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*/ |
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public static $connectTrying = false; |
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/** |
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* Connected flag |
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* |
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* @var boolean |
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*/ |
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public static $connected = false; |
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/** |
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* Try connect to memcache server |
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*/ |
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public static function connect() { |
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if (!self::$connectTrying && class_exists('Memcache', false)) { |
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self::$server = new Memcache(); |
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self::$connected = @self::$server->connect('localhost', 11211); |
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} |
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self::$connectTrying = true; |
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} |
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/** |
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* Get chached value |
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* |
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* If value not present, call callback |
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* |
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* @param string $name |
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* @param array $params |
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* @param callable $callback |
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* @return boolean |
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*/ |
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public static function get($name, $params = [], $callback = null, $lifeTime = 3600, $prefix = false) { |
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if (!self::$connected) { |
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self::connect(); |
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} |
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if (!self::$connected) { |
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if (is_callable($callback, true)) { |
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return $callback($params); |
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} |
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return false; |
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} |
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if ($prefix === false) { |
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$prefix = App::$primary->name; |
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} |
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$val = @self::$server->get($prefix . '_' . $name . serialize($params)); |
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if ($val !== false) { |
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return $val; |
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} else { |
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if (is_callable($callback, true)) { |
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while (!\Inji::$inst->blockParallel()) { |
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sleep(1); |
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$val = @self::$server->get($prefix . '_' . $name . serialize($params)); |
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if ($val !== false) { |
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return $val; |
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} |
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} |
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$val = $callback($params); |
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\Inji::$inst->unBlockParallel(); |
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self::set($name, $params, $val, $lifeTime, $prefix); |
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return $val; |
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} |
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} |
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return false; |
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} |
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/** |
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* Set value to cache |
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* |
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* @param string $name |
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* @param array $params |
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* @param mixed $val |
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* @param int $lifeTime |
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* @return boolean |
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*/ |
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public static function set($name, $params = [], $val = '', $lifeTime = 3600, $prefix = false) { |
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if (!self::$connected) { |
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self::connect(); |
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} |
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if (!self::$connected) { |
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return false; |
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} |
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if ($prefix === false) { |
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$prefix = App::$primary->name; |
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} |
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return @self::$server->set($prefix . '_' . $name . serialize($params), $val, false, $lifeTime); |
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} |
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/** |
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* Move file to cache folder and return path |
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* |
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* Also resize image when given resize params |
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* |
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* @param string $file |
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* @param array $options |
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* @return string |
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*/ |
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public static function file($file, $options = []) { |
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$sizes = !empty($options['resize']) ? $options['resize'] : []; |
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$crop = !empty($options['crop']) ? $options['crop'] : ''; |
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$pos = !empty($options['pos']) ? $options['pos'] : 'center'; |
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$fileinfo = pathinfo($file); |
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$fileCheckSum = md5($fileinfo['dirname'] . filemtime($file)); |
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$path = static::getDir('static') . $fileCheckSum . '_' . $fileinfo['filename']; |
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if ($sizes) { |
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$path .= '.' . $sizes['x'] . 'x' . $sizes['y'] . $crop . $pos; |
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} |
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$path .= '.' . $fileinfo['extension']; |
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if (!file_exists($path)) { |
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copy($file, $path); |
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if ($sizes) { |
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Tools::resizeImage($path, $sizes['x'], $sizes['y'], $crop, $pos); |
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} |
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} |
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return $path; |
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} |
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/** |
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* Get cache dir for app |
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* |
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* @param App $app |
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* @return string |
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*/ |
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public static function getDir($dirname, $app = null) { |
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if (!$app) { |
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$app = App::$primary; |
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} |
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$path = static::folder() . "{$dirname}/{$app->dir}/"; |
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Tools::createDir($path); |
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return $path; |
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} |
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public static function folder() { |
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return 'cache/'; |
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} |
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} |
injitools /
cms-Inji
If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:
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