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<?php
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/**
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* @author Nikita Melnikov <[email protected]>
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* @link https://github.com/shogodev/argilla/
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* @copyright Copyright © 2003-2014 Shogo
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* @license http://argilla.ru/LICENSE
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* @package ext.mainscript
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*/
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/**
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* Class ScriptHashHelper
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*
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* @property string $version
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* @property string $hash
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* @property string $isUpdated
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*/
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class ScriptHashHelper extends CComponent
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{
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/**
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* Относительный путь к файлу с версией файлов
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*
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* @var string
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*/
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public $versionFile = '/js/.version';
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/**
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* Текущий хэш файлов
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*
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* @var string
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*/
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protected $hash;
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/**
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* Версия файлов
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*
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* @var string
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*/
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protected $version;
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/**
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* Массив с количеством файлов и их датой изменения
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*
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* @var array
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*/
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protected $data = array();
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/**
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* Флаг изменения контрольной суммы
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*
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* @var boolean
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*/
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protected $isUpdated;
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/**
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* @var ScriptHashHelper
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*/
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private static $instance = null;
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/**
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* @return ScriptHashHelper
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*/
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public static function getInstance()
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{
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if( empty(self::$instance) )
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self::$instance = new ScriptHashHelper();
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return self::$instance;
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}
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private function __construct()
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{
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$this->init();
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}
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private function __clone()
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{
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}
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/**
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* Инициализация объекта ScriptHashHelper
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*/
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public function init()
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{
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$this->setHash();
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$this->setVersion();
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$this->setUpdateFlag();
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if( $this->isUpdated )
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$this->saveVersion();
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}
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/**
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* Создание контролльной суммы,
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* основываясь на сериализации $this->data
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* получение от неё контрольной суммы по md5
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*
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* @return string
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*/
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protected function setHash()
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{
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$this->data[] = count(ScriptsFileFinder::getInstance()->getFiles());
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foreach( ScriptsFileFinder::getInstance()->getFiles() as $file )
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{
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$this->data[] = filemtime($file);
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}
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$serialized = serialize($this->data);
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return $this->hash = md5($serialized);
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}
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/**
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* Инициализация флага обновления контрольной суммы
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*/
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protected function setUpdateFlag()
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{
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$this->isUpdated = $this->hash !== $this->version;
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}
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/**
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* Получение версии (предыдущей контрольной суммы)
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*
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* @return string
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*/
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protected function setVersion()
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{
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$path = ScriptsFileFinder::getInstance()->getRoot().$this->versionFile;
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if( file_exists($path) )
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$this->version = file_get_contents($path);
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else
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$this->version = 'null';
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return $this->version;
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}
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/**
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* Сохранение текущей контрольной суммы
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* (обновление версии)
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*
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* @throws Exception
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*/
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1 |
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protected function saveVersion()
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{
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if( empty($this->hash) )
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throw new Exception('hash is empty');
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$path = ScriptsFileFinder::getInstance()->getRoot() . $this->versionFile;
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if( file_exists($path) )
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file_put_contents($path, $this->hash);
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else
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{
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$versionFile = fopen($path, 'w');
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fwrite($versionFile, $this->hash);
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fclose($versionFile);
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chmod($path, 0664);
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}
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}
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4 |
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protected function getHash()
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{
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return $this->hash;
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}
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protected function getVersion()
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{
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return $this->version;
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}
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8 |
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protected function getIsUpdated()
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{
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return $this->isUpdated;
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}
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} |
shogodev /
argilla
