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<?php
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class CacheFichier {
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/**
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* Available options
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*
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* =====> (string) cache_dir :
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* - Directory where to put the cache files
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*
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* =====> (boolean) file_locking :
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* - Enable / disable file_locking
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* - Can avoid cache corruption under bad circumstances but it doesn't work on multithread
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* webservers and on NFS filesystems for example
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*
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* =====> (boolean) read_control :
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* - Enable / disable read control
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* - If enabled, a control key is embeded in cache file and this key is compared with the one
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* calculated after the reading.
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*
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* =====> (string) read_control_type :
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* - Type of read control (only if read control is enabled). Available values are :
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* 'md5' for a md5 hash control (best but slowest)
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* 'crc32' for a crc32 hash control (lightly less safe but faster, better choice)
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* 'adler32' for an adler32 hash control (excellent choice too, faster than crc32)
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* 'strlen' for a length only test (fastest)
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*
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* =====> (int) hashed_directory_level :
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* - Hashed directory level
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* - Set the hashed directory structure level. 0 means "no hashed directory
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* structure", 1 means "one level of directory", 2 means "two levels"...
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* This option can speed up the cache only when you have many thousands of
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* cache file. Only specific benchs can help you to choose the perfect value
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* for you. Maybe, 1 or 2 is a good start.
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*
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* =====> (int) hashed_directory_umask :
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* - Umask for hashed directory structure
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*
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* =====> (string) file_name_prefix :
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* - prefix for cache files
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* - be really carefull with this option because a too generic value in a system cache dir
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* (like /tmp) can cause disasters when cleaning the cache
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*
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* =====> (int) cache_file_umask :
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* - Umask for cache files
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*
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* =====> (int) metatadatas_array_max_size :
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* - max size for the metadatas array (don't change this value unless you
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* know what you are doing)
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*
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* @var array available options
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*/
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protected $options = array(
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'stockage_chemin' => null,
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jpm |
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'fichier_verrou' => true,
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'controle_lecture' => true,
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jpm |
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'controle_lecture_type' => 'crc32',
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'dossier_niveau' => 0,
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'dossier_umask' => 0700,
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'fichier_prefixe' => 'tbf',
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'fichier_umask' => 0600,
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'metadonnees_max_taille' => 100
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);
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/**
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* Array of metadatas (each item is an associative array)
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*
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* @var array
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*/
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jpm |
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protected $metadonnees = array();
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jpm |
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jpm |
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private $Cache = null;
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jpm |
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/**
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* Constructor
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*
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* @param array $options associative array of options
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* @throws Zend_Cache_Exception
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* @return void
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*/
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jpm |
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public function __construct(array $options = array(), Cache $cache) {
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$this->Cache = $cache;
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jpm |
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$this->setOptions($options);
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jpm |
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if (isset($this->options['prefixe_fichier'])) {
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if (!preg_match('~^[a-zA-Z0-9_]+$~D', $this->options['prefixe_fichier'])) {
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trigger_error("Préfixe de nom de fichier invalide : doit contenir seulement [a-zA-Z0-9_]", E_USER_WARNING);
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}
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}
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jpm |
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if ($this->options['metadonnees_max_taille'] < 10) {
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jpm |
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trigger_error("Taille du tableau des méta-données invalide, elle doit être > 10", E_USER_WARNING);
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}
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if (isset($options['dossier_umask']) && is_string($options['dossier_umask'])) {
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// See #ZF-4422
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$this->options['dossier_umask'] = octdec($this->options['dossier_umask']);
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}
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if (isset($options['fichier_umask']) && is_string($options['fichier_umask'])) {
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// See #ZF-4422
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$this->options['fichier_umask'] = octdec($this->options['fichier_umask']);
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}
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}
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jpm |
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private function setOptions($options) {
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while (list($nom, $valeur) = each($options)) {
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if (!is_string($nom)) {
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trigger_error("Nom d'option incorecte : $nom", E_USER_WARNING);
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}
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$nom = strtolower($nom);
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if (array_key_exists($nom, $this->options)) {
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$this->options[$nom] = $valeur;
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}
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}
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}
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jpm |
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jpm |
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public function setEmplacement($emplacement) {
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jpm |
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if (!is_dir($emplacement)) {
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trigger_error("L'emplacement doit être un dossier.", E_USER_WARNING);
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}
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if (!is_writable($emplacement)) {
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trigger_error("Le dossier de stockage du cache n'est pas accessible en écriture", E_USER_WARNING);
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}
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$emplacement = rtrim(realpath($emplacement), '\\/').DS;
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$this->options['stockage_chemin'] = $emplacement;
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}
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/**
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* Test if a cache is available for the given id and (if yes) return it (false else)
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*
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* @param string $id cache id
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* @param boolean $doNotTestCacheValidity if set to true, the cache validity won't be tested
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* @return string|false cached datas
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*/
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public function charger($id, $ne_pas_tester_validiter_du_cache = false) {
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$donnees = false;
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if ($this->tester($id, $ne_pas_tester_validiter_du_cache)) {
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$metadonnees = $this->getMetadonneesFichier($id);
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$fichier = $this->getFichierNom($id);
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$donnees = $this->getContenuFichier($fichier);
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if ($this->options['controle_lecture']) {
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$cle_secu_donnees = $this->genererCleSecu($donnees, $this->options['controle_lecture_type']);
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$cle_secu_controle = $metadonnees['hash'];
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if ($cle_secu_donnees != $cle_secu_controle) {
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// Probléme détecté par le contrôle de lecture !
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// TODO : loguer le pb de sécu
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$this->supprimer($id);
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$donnees = false;
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}
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}
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}
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return $donnees;
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}
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/**
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* Teste si un enregistrement en cache est disponible ou pas (pour l'id passé en paramètre).
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*
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* @param string $id identifiant de cache.
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* @return mixed false (le cache n'est pas disponible) ou timestamp (int) "de dernière modification" de l'enregistrement en cache
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*/
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public function tester($id) {
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clearstatcache();
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return $this->testerExistenceCache($id, false);
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}
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/**
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* Save some string datas into a cache record
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*
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* Note : $data is always "string" (serialization is done by the
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* core not by the backend)
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*
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* @param string $data Datas to cache
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* @param string $id Cache id
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* @param array $tags Array of strings, the cache record will be tagged by each string entry
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* @param int $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
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* @return boolean true if no problem
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*/
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jpm |
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public function sauver($donnees, $id, $tags = array(), $duree_vie_specifique = false) {
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jpm |
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clearstatcache();
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jpm |
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$fichier = $this->getFichierNom($id);
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$chemin = $this->getChemin($id);
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$resultat = true;
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if ($this->options['dossier_niveau'] > 0) {
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if (!is_writable($chemin)) {
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jpm |
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// maybe, we just have to build the directory structure
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$this->lancerMkdirEtChmodRecursif($id);
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}
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jpm |
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if (!is_writable($chemin)) {
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$resultat = false;
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jpm |
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}
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}
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jpm |
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if ($resultat === true) {
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if ($this->options['controle_lecture']) {
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$cle_secu = $this->genererCleSecu($donnees, $this->options['controle_lecture_type']);
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} else {
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$cle_secu = '';
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}
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$metadonnees = array(
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'hash' => $cle_secu,
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'mtime' => time(),
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jpm |
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'expiration' => $this->Cache->getTimestampExpiration($duree_vie_specifique),
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jpm |
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'tags' => $tags
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);
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if (! $resultat = $this->setMetadonnees($id, $metadonnees)) {
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// TODO : ajouter un log
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} else {
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$resultat = $this->setContenuFichier($fichier, $donnees);
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}
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jpm |
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}
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jpm |
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return $resultat;
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jpm |
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}
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/**
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* Remove a cache record
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*
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* @param string $id cache id
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* @return boolean true if no problem
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*/
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public function supprimer($id) {
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$fichier = $this->getFichierNom($id);
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$suppression_fichier = $this->supprimerFichier($fichier);
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$suppression_metadonnees = $this->supprimerMetadonnees($id);
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return $suppression_metadonnees && $suppression_fichier;
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}
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/**
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* Clean some cache records
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*
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* Available modes are :
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* 'all' (default) => remove all cache entries ($tags is not used)
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* 'old' => remove too old cache entries ($tags is not used)
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* 'matchingTag' => remove cache entries matching all given tags
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* ($tags can be an array of strings or a single string)
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* 'notMatchingTag' => remove cache entries not matching one of the given tags
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* ($tags can be an array of strings or a single string)
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* 'matchingAnyTag' => remove cache entries matching any given tags
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* ($tags can be an array of strings or a single string)
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*
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* @param string $mode clean mode
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* @param tags array $tags array of tags
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* @return boolean true if no problem
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*/
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public function nettoyer($mode = Cache::NETTOYAGE_MODE_TOUS, $tags = array()) {
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// We use this protected method to hide the recursive stuff
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clearstatcache();
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jpm |
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return $this->nettoyerFichiers($this->options['stockage_chemin'], $mode, $tags);
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jpm |
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}
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/**
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* Return an array of stored cache ids
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*
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* @return array array of stored cache ids (string)
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*/
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jpm |
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public function getIds() {
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return $this->analyserCache($this->options['stockage_chemin'], 'ids', array());
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jpm |
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}
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/**
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* Return an array of stored tags
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*
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* @return array array of stored tags (string)
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*/
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jpm |
263 |
public function getTags() {
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return $this->analyserCache($this->options['stockage_chemin'], 'tags', array());
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jpm |
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}
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/**
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* Return an array of stored cache ids which match given tags
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*
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* In case of multiple tags, a logical AND is made between tags
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*
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* @param array $tags array of tags
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* @return array array of matching cache ids (string)
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*/
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jpm |
275 |
public function getIdsAvecLesTags($tags = array()) {
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return $this->analyserCache($this->options['stockage_chemin'], 'matching', $tags);
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jpm |
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}
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/**
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* Return an array of stored cache ids which don't match given tags
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*
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* In case of multiple tags, a logical OR is made between tags
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*
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* @param array $tags array of tags
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* @return array array of not matching cache ids (string)
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*/
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jpm |
287 |
public function getIdsSansLesTags($tags = array()) {
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return $this->analyserCache($this->options['stockage_chemin'], 'notMatching', $tags);
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jpm |
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}
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/**
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* Return an array of stored cache ids which match any given tags
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*
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* In case of multiple tags, a logical AND is made between tags
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*
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* @param array $tags array of tags
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* @return array array of any matching cache ids (string)
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*/
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jpm |
299 |
public function getIdsAvecUnTag($tags = array()) {
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return $this->analyserCache($this->options['stockage_chemin'], 'matchingAny', $tags);
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jpm |
301 |
}
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/**
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* Return the filling percentage of the backend storage
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*
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* @throws Zend_Cache_Exception
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* @return int integer between 0 and 100
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*/
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jpm |
309 |
public function getPourcentageRemplissage() {
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jpm |
310 |
$libre = disk_free_space($this->options['stockage_chemin']);
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$total = disk_total_space($this->options['stockage_chemin']);
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jpm |
312 |
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$pourcentage = 0;
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jpm |
314 |
if ($total == 0) {
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jpm |
315 |
trigger_error("Impossible d'utiliser la fonction disk_total_space", E_USER_WARNING);
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jpm |
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} else {
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jpm |
317 |
$pourcentage = ($libre >= $total) ? 100 : ((int) (100. * ($total - $libre) / $total));
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jpm |
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}
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jpm |
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return $pourcentage;
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jpm |
320 |
}
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/**
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* Return an array of metadatas for the given cache id
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*
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325 |
* The array must include these keys :
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* - expire : the expire timestamp
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* - tags : a string array of tags
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* - mtime : timestamp of last modification time
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*
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330 |
* @param string $id cache id
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331 |
* @return array array of metadatas (false if the cache id is not found)
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332 |
*/
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| 248 |
jpm |
333 |
public function getMetadonnees($id) {
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|
|
334 |
if ($metadonnees = $this->getMetadonneesFichier($id)) {
|
|
|
335 |
if (time() > $metadonnees['expiration']) {
|
|
|
336 |
$metadonnees = false;
|
|
|
337 |
} else {
|
|
|
338 |
$metadonnees = array(
|
|
|
339 |
'expiration' => $metadonnees['expiration'],
|
|
|
340 |
'tags' => $metadonnees['tags'],
|
|
|
341 |
'mtime' => $metadonnees['mtime']
|
|
|
342 |
);
|
|
|
343 |
}
|
| 246 |
jpm |
344 |
}
|
| 248 |
jpm |
345 |
|
|
|
346 |
return $metadonnees;
|
| 246 |
jpm |
347 |
}
|
|
|
348 |
|
|
|
349 |
/**
|
|
|
350 |
* Give (if possible) an extra lifetime to the given cache id
|
|
|
351 |
*
|
|
|
352 |
* @param string $id cache id
|
|
|
353 |
* @param int $extraLifetime
|
|
|
354 |
* @return boolean true if ok
|
|
|
355 |
*/
|
| 248 |
jpm |
356 |
public function ajouterSupplementDureeDeVie($id, $supplement_duree_de_vie) {
|
|
|
357 |
$augmentation = true;
|
|
|
358 |
if ($metadonnees = $this->getMetadonneesFichier($id)) {
|
|
|
359 |
if (time() > $metadonnees['expiration']) {
|
|
|
360 |
$augmentation = false;
|
|
|
361 |
} else {
|
|
|
362 |
$metadonnees_nouvelle = array(
|
|
|
363 |
'hash' => $metadonnees['hash'],
|
|
|
364 |
'mtime' => time(),
|
|
|
365 |
'expiration' => $metadonnees['expiration'] + $supplement_duree_de_vie,
|
|
|
366 |
'tags' => $metadonnees['tags']
|
|
|
367 |
);
|
|
|
368 |
$augmentation = $this->setMetadonnees($id, $metadonnees_nouvelle);
|
|
|
369 |
}
|
| 246 |
jpm |
370 |
}
|
| 248 |
jpm |
371 |
return $augmentation;
|
| 246 |
jpm |
372 |
}
|
|
|
373 |
|
|
|
374 |
/**
|
|
|
375 |
* Get a metadatas record
|
|
|
376 |
*
|
|
|
377 |
* @param string $id Cache id
|
|
|
378 |
* @return array|false Associative array of metadatas
|
|
|
379 |
*/
|
|
|
380 |
protected function getMetadonneesFichier($id) {
|
|
|
381 |
$metadonnees = false;
|
|
|
382 |
if (isset($this->metadonnees[$id])) {
|
|
|
383 |
$metadonnees = $this->metadonnees[$id];
|
|
|
384 |
} else {
|
|
|
385 |
if ($metadonnees = $this->chargerMetadonnees($id)) {
|
|
|
386 |
$this->setMetadonnees($id, $metadonnees, false);
|
|
|
387 |
}
|
|
|
388 |
}
|
|
|
389 |
return $metadonnees;
|
|
|
390 |
}
|
|
|
391 |
|
|
|
392 |
/**
|
|
|
393 |
* Set a metadatas record
|
|
|
394 |
*
|
|
|
395 |
* @param string $id Cache id
|
|
|
396 |
* @param array $metadatas Associative array of metadatas
|
|
|
397 |
* @param boolean $save optional pass false to disable saving to file
|
|
|
398 |
* @return boolean True if no problem
|
|
|
399 |
*/
|
|
|
400 |
protected function setMetadonnees($id, $metadonnees, $sauvegarde = true) {
|
|
|
401 |
if (count($this->metadonnees) >= $this->options['metadonnees_max_taille']) {
|
|
|
402 |
$n = (int) ($this->options['metadonnees_max_taille'] / 10);
|
|
|
403 |
$this->metadonnees = array_slice($this->metadonnees, $n);
|
|
|
404 |
}
|
|
|
405 |
|
|
|
406 |
$resultat = true;
|
|
|
407 |
if ($sauvegarde) {
|
|
|
408 |
$resultat = $this->sauverMetadonnees($id, $metadonnees);
|
|
|
409 |
}
|
|
|
410 |
if ($resultat == true) {
|
|
|
411 |
$this->metadonnees[$id] = $metadonnees;
|
|
|
412 |
}
|
|
|
413 |
return $resultat;
|
|
|
414 |
}
|
|
|
415 |
|
|
|
416 |
/**
|
|
|
417 |
* Drop a metadata record
|
|
|
418 |
*
|
|
|
419 |
* @param string $id Cache id
|
|
|
420 |
* @return boolean True if no problem
|
|
|
421 |
*/
|
|
|
422 |
protected function supprimerMetadonnees($id) {
|
|
|
423 |
if (isset($this->metadonnees[$id])) {
|
|
|
424 |
unset($this->metadonnees[$id]);
|
|
|
425 |
}
|
|
|
426 |
$fichier_meta = $this->getNomFichierMeta($id);
|
|
|
427 |
return $this->supprimerFichier($fichier_meta);
|
|
|
428 |
}
|
|
|
429 |
|
|
|
430 |
/**
|
|
|
431 |
* Clear the metadatas array
|
|
|
432 |
*
|
|
|
433 |
* @return void
|
|
|
434 |
*/
|
|
|
435 |
protected function nettoyerMetadonnees() {
|
|
|
436 |
$this->metadonnees = array();
|
|
|
437 |
}
|
|
|
438 |
|
|
|
439 |
/**
|
|
|
440 |
* Load metadatas from disk
|
|
|
441 |
*
|
|
|
442 |
* @param string $id Cache id
|
|
|
443 |
* @return array|false Metadatas associative array
|
|
|
444 |
*/
|
|
|
445 |
protected function chargerMetadonnees($id) {
|
|
|
446 |
$fichier = $this->getNomFichierMeta($id);
|
|
|
447 |
if ($resultat = $this->getContenuFichier($fichier)) {
|
|
|
448 |
$resultat = @unserialize($resultat);
|
|
|
449 |
}
|
|
|
450 |
return $resultat;
|
|
|
451 |
}
|
|
|
452 |
|
|
|
453 |
/**
|
|
|
454 |
* Save metadatas to disk
|
|
|
455 |
*
|
|
|
456 |
* @param string $id Cache id
|
|
|
457 |
* @param array $metadatas Associative array
|
|
|
458 |
* @return boolean True if no problem
|
|
|
459 |
*/
|
|
|
460 |
protected function sauverMetadonnees($id, $metadonnees) {
|
|
|
461 |
$fichier = $this->getNomFichierMeta($id);
|
|
|
462 |
$resultat = $this->setContenuFichier($fichier, serialize($metadonnees));
|
|
|
463 |
return $resultat;
|
|
|
464 |
}
|
|
|
465 |
|
|
|
466 |
/**
|
|
|
467 |
* Make and return a file name (with path) for metadatas
|
|
|
468 |
*
|
|
|
469 |
* @param string $id Cache id
|
|
|
470 |
* @return string Metadatas file name (with path)
|
|
|
471 |
*/
|
|
|
472 |
protected function getNomFichierMeta($id) {
|
|
|
473 |
$chemin = $this->getChemin($id);
|
| 253 |
jpm |
474 |
$fichier_nom = $this->transformaterIdEnNomFichier('interne-meta---'.$id);
|
| 246 |
jpm |
475 |
return $chemin.$fichier_nom;
|
|
|
476 |
}
|
|
|
477 |
|
|
|
478 |
/**
|
|
|
479 |
* Check if the given filename is a metadatas one
|
|
|
480 |
*
|
|
|
481 |
* @param string $fileName File name
|
|
|
482 |
* @return boolean True if it's a metadatas one
|
|
|
483 |
*/
|
|
|
484 |
protected function etreFichierMeta($fichier_nom) {
|
|
|
485 |
$id = $this->transformerNomFichierEnId($fichier_nom);
|
| 253 |
jpm |
486 |
return (substr($id, 0, 21) == 'interne-meta---') ? true : false;
|
| 246 |
jpm |
487 |
}
|
|
|
488 |
|
|
|
489 |
/**
|
|
|
490 |
* Remove a file
|
|
|
491 |
*
|
|
|
492 |
* If we can't remove the file (because of locks or any problem), we will touch
|
|
|
493 |
* the file to invalidate it
|
|
|
494 |
*
|
|
|
495 |
* @param string $file Complete file path
|
|
|
496 |
* @return boolean True if ok
|
|
|
497 |
*/
|
|
|
498 |
protected function supprimerFichier($fichier) {
|
|
|
499 |
$resultat = false;
|
|
|
500 |
if (is_file($fichier)) {
|
|
|
501 |
if ($resultat = @unlink($fichier)) {
|
|
|
502 |
// TODO : ajouter un log
|
|
|
503 |
}
|
|
|
504 |
}
|
|
|
505 |
return $resultat;
|
|
|
506 |
}
|
|
|
507 |
|
|
|
508 |
/**
|
|
|
509 |
* Clean some cache records (protected method used for recursive stuff)
|
|
|
510 |
*
|
|
|
511 |
* Available modes are :
|
|
|
512 |
* Zend_Cache::CLEANING_MODE_ALL (default) => remove all cache entries ($tags is not used)
|
|
|
513 |
* Zend_Cache::CLEANING_MODE_OLD => remove too old cache entries ($tags is not used)
|
|
|
514 |
* Zend_Cache::CLEANING_MODE_MATCHING_TAG => remove cache entries matching all given tags
|
|
|
515 |
* ($tags can be an array of strings or a single string)
|
|
|
516 |
* Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => remove cache entries not {matching one of the given tags}
|
|
|
517 |
* ($tags can be an array of strings or a single string)
|
|
|
518 |
* Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG => remove cache entries matching any given tags
|
|
|
519 |
* ($tags can be an array of strings or a single string)
|
|
|
520 |
*
|
|
|
521 |
* @param string $dir Directory to clean
|
|
|
522 |
* @param string $mode Clean mode
|
|
|
523 |
* @param array $tags Array of tags
|
|
|
524 |
* @throws Zend_Cache_Exception
|
|
|
525 |
* @return boolean True if no problem
|
|
|
526 |
*/
|
|
|
527 |
protected function nettoyerFichiers($dossier, $mode = Cache::NETTOYAGE_MODE_TOUS, $tags = array()) {
|
|
|
528 |
if (!is_dir($dossier)) {
|
|
|
529 |
return false;
|
|
|
530 |
}
|
|
|
531 |
$resultat = true;
|
|
|
532 |
$prefixe = $this->options['fichier_prefixe'];
|
|
|
533 |
$glob = @glob($dossier.$prefixe.'--*');
|
|
|
534 |
if ($glob === false) {
|
|
|
535 |
// On some systems it is impossible to distinguish between empty match and an error.
|
|
|
536 |
return true;
|
|
|
537 |
}
|
|
|
538 |
foreach ($glob as $fichier) {
|
|
|
539 |
if (is_file($fichier)) {
|
|
|
540 |
$fichier_nom = basename($fichier);
|
|
|
541 |
if ($this->etreFichierMeta($fichier_nom)) {
|
| 248 |
jpm |
542 |
// Pour le mode Cache::NETTOYAGE_MODE_TOUS, nous essayons de tous supprimer même les vieux fichiers méta
|
| 246 |
jpm |
543 |
if ($mode != Cache::NETTOYAGE_MODE_TOUS) {
|
|
|
544 |
continue;
|
|
|
545 |
}
|
|
|
546 |
}
|
|
|
547 |
$id = $this->transformerNomFichierEnId($fichier_nom);
|
| 248 |
jpm |
548 |
$metadonnees = $this->getMetadonneesFichier($id);
|
|
|
549 |
if ($metadonnees === FALSE) {
|
|
|
550 |
$metadonnees = array('expiration' => 1, 'tags' => array());
|
| 246 |
jpm |
551 |
}
|
|
|
552 |
switch ($mode) {
|
| 248 |
jpm |
553 |
case Cache::NETTOYAGE_MODE_TOUS :
|
|
|
554 |
if ($resultat_suppression = $this->supprimer($id)) {
|
|
|
555 |
// Dans ce cas seulement, nous acception qu'il y ait un problème avec la suppresssion du fichier meta
|
|
|
556 |
$resultat_suppression = $this->supprimerFichier($fichier);
|
| 246 |
jpm |
557 |
}
|
| 248 |
jpm |
558 |
$resultat = $resultat && $resultat_suppression;
|
| 246 |
jpm |
559 |
break;
|
| 248 |
jpm |
560 |
case Cache::NETTOYAGE_MODE_EXPIRATION :
|
|
|
561 |
if (time() > $metadonnees['expiration']) {
|
|
|
562 |
$resultat = $this->supprimer($id) && $resultat;
|
| 246 |
jpm |
563 |
}
|
|
|
564 |
break;
|
| 248 |
jpm |
565 |
case Cache::NETTOYAGE_MODE_AVEC_LES_TAGS :
|
|
|
566 |
$correspondance = true;
|
| 246 |
jpm |
567 |
foreach ($tags as $tag) {
|
| 248 |
jpm |
568 |
if (!in_array($tag, $metadonnees['tags'])) {
|
|
|
569 |
$correspondance = false;
|
| 246 |
jpm |
570 |
break;
|
|
|
571 |
}
|
|
|
572 |
}
|
| 248 |
jpm |
573 |
if ($correspondance) {
|
|
|
574 |
$resultat = $this->supprimer($id) && $resultat;
|
| 246 |
jpm |
575 |
}
|
|
|
576 |
break;
|
| 248 |
jpm |
577 |
case Cache::NETTOYAGE_MODE_SANS_LES_TAGS :
|
|
|
578 |
$correspondance = false;
|
| 246 |
jpm |
579 |
foreach ($tags as $tag) {
|
| 248 |
jpm |
580 |
if (in_array($tag, $metadonnees['tags'])) {
|
|
|
581 |
$correspondance = true;
|
| 246 |
jpm |
582 |
break;
|
|
|
583 |
}
|
|
|
584 |
}
|
| 248 |
jpm |
585 |
if (!$correspondance) {
|
|
|
586 |
$resultat = $this->supprimer($id) && $resultat;
|
| 246 |
jpm |
587 |
}
|
|
|
588 |
break;
|
| 248 |
jpm |
589 |
case Cache::NETTOYAGE_MODE_AVEC_UN_TAG :
|
|
|
590 |
$correspondance = false;
|
| 246 |
jpm |
591 |
foreach ($tags as $tag) {
|
| 248 |
jpm |
592 |
if (in_array($tag, $metadonnees['tags'])) {
|
|
|
593 |
$correspondance = true;
|
| 246 |
jpm |
594 |
break;
|
|
|
595 |
}
|
|
|
596 |
}
|
| 248 |
jpm |
597 |
if ($correspondance) {
|
|
|
598 |
$resultat = $this->supprimer($id) && $resultat;
|
| 246 |
jpm |
599 |
}
|
|
|
600 |
break;
|
|
|
601 |
default:
|
| 248 |
jpm |
602 |
trigger_error("Mode de nettoyage invalide pour la méthode nettoyer()", E_USER_WARNING);
|
| 246 |
jpm |
603 |
break;
|
|
|
604 |
}
|
|
|
605 |
}
|
| 248 |
jpm |
606 |
if ((is_dir($fichier)) and ($this->options['dossier_niveau'] > 0)) {
|
|
|
607 |
// Appel récursif
|
|
|
608 |
$resultat = $this->nettoyerFichiers($fichier.DS, $mode, $tags) && $resultat;
|
|
|
609 |
if ($mode == Cache::NETTOYAGE_MODE_TOUS) {
|
|
|
610 |
// Si mode == Cache::NETTOYAGE_MODE_TOUS, nous essayons de supprimer la structure aussi
|
|
|
611 |
@rmdir($fichier);
|
| 246 |
jpm |
612 |
}
|
|
|
613 |
}
|
|
|
614 |
}
|
|
|
615 |
return $resultat;
|
|
|
616 |
}
|
|
|
617 |
|
| 248 |
jpm |
618 |
protected function analyserCache($dossier, $mode, $tags = array()) {
|
|
|
619 |
if (!is_dir($dossier)) {
|
| 246 |
jpm |
620 |
return false;
|
|
|
621 |
}
|
| 248 |
jpm |
622 |
$resultat = array();
|
|
|
623 |
$prefixe = $this->options['fichier_prefixe'];
|
|
|
624 |
$glob = @glob($dossier.$prefixe.'--*');
|
| 246 |
jpm |
625 |
if ($glob === false) {
|
|
|
626 |
// On some systems it is impossible to distinguish between empty match and an error.
|
|
|
627 |
return array();
|
|
|
628 |
}
|
| 248 |
jpm |
629 |
foreach ($glob as $fichier) {
|
|
|
630 |
if (is_file($fichier)) {
|
|
|
631 |
$nom_fichier = basename($fichier);
|
|
|
632 |
$id = $this->transformerNomFichierEnId($nom_fichier);
|
|
|
633 |
$metadonnees = $this->getMetadonneesFichier($id);
|
|
|
634 |
if ($metadonnees === FALSE) {
|
| 246 |
jpm |
635 |
continue;
|
|
|
636 |
}
|
| 248 |
jpm |
637 |
if (time() > $metadonnees['expiration']) {
|
| 246 |
jpm |
638 |
continue;
|
|
|
639 |
}
|
|
|
640 |
switch ($mode) {
|
|
|
641 |
case 'ids':
|
| 248 |
jpm |
642 |
$resultat[] = $id;
|
| 246 |
jpm |
643 |
break;
|
|
|
644 |
case 'tags':
|
| 248 |
jpm |
645 |
$resultat = array_unique(array_merge($resultat, $metadonnees['tags']));
|
| 246 |
jpm |
646 |
break;
|
|
|
647 |
case 'matching':
|
| 248 |
jpm |
648 |
$correspondance = true;
|
| 246 |
jpm |
649 |
foreach ($tags as $tag) {
|
| 248 |
jpm |
650 |
if (!in_array($tag, $metadonnees['tags'])) {
|
|
|
651 |
$correspondance = false;
|
| 246 |
jpm |
652 |
break;
|
|
|
653 |
}
|
|
|
654 |
}
|
| 248 |
jpm |
655 |
if ($correspondance) {
|
|
|
656 |
$resultat[] = $id;
|
| 246 |
jpm |
657 |
}
|
|
|
658 |
break;
|
|
|
659 |
case 'notMatching':
|
| 248 |
jpm |
660 |
$correspondance = false;
|
| 246 |
jpm |
661 |
foreach ($tags as $tag) {
|
| 248 |
jpm |
662 |
if (in_array($tag, $metadonnees['tags'])) {
|
|
|
663 |
$correspondance = true;
|
| 246 |
jpm |
664 |
break;
|
|
|
665 |
}
|
|
|
666 |
}
|
| 248 |
jpm |
667 |
if (!$correspondance) {
|
|
|
668 |
$resultat[] = $id;
|
| 246 |
jpm |
669 |
}
|
|
|
670 |
break;
|
|
|
671 |
case 'matchingAny':
|
| 248 |
jpm |
672 |
$correspondance = false;
|
| 246 |
jpm |
673 |
foreach ($tags as $tag) {
|
| 248 |
jpm |
674 |
if (in_array($tag, $metadonnees['tags'])) {
|
|
|
675 |
$correspondance = true;
|
| 246 |
jpm |
676 |
break;
|
|
|
677 |
}
|
|
|
678 |
}
|
| 248 |
jpm |
679 |
if ($correspondance) {
|
|
|
680 |
$resultat[] = $id;
|
| 246 |
jpm |
681 |
}
|
|
|
682 |
break;
|
|
|
683 |
default:
|
| 248 |
jpm |
684 |
trigger_error("Mode invalide pour la méthode analyserCache()", E_USER_WARNING);
|
| 246 |
jpm |
685 |
break;
|
|
|
686 |
}
|
|
|
687 |
}
|
| 248 |
jpm |
688 |
if ((is_dir($fichier)) and ($this->options['dossier_niveau'] > 0)) {
|
|
|
689 |
// Appel récursif
|
|
|
690 |
$resultat_analyse_recursive = $this->analyserCache($fichier.DS, $mode, $tags);
|
|
|
691 |
if ($resultat_analyse_recursive === false) {
|
|
|
692 |
// TODO : ajoute un log
|
| 246 |
jpm |
693 |
} else {
|
| 248 |
jpm |
694 |
$resultat = array_unique(array_merge($resultat, $resultat_analyse_recursive));
|
| 246 |
jpm |
695 |
}
|
|
|
696 |
}
|
|
|
697 |
}
|
| 248 |
jpm |
698 |
return array_unique($resultat);
|
| 246 |
jpm |
699 |
}
|
|
|
700 |
|
|
|
701 |
/**
|
|
|
702 |
* Make a control key with the string containing datas
|
|
|
703 |
*
|
|
|
704 |
* @param string $data Data
|
|
|
705 |
* @param string $controlType Type of control 'md5', 'crc32' or 'strlen'
|
|
|
706 |
* @throws Zend_Cache_Exception
|
|
|
707 |
* @return string Control key
|
|
|
708 |
*/
|
|
|
709 |
protected function genererCleSecu($donnees, $type_de_controle) {
|
|
|
710 |
switch ($type_de_controle) {
|
|
|
711 |
case 'md5':
|
|
|
712 |
return md5($donnees);
|
|
|
713 |
case 'crc32':
|
|
|
714 |
return crc32($donnees);
|
|
|
715 |
case 'strlen':
|
|
|
716 |
return strlen($donnees);
|
|
|
717 |
case 'adler32':
|
|
|
718 |
return hash('adler32', $donnees);
|
|
|
719 |
default:
|
|
|
720 |
trigger_error("Fonction de génération de clé de sécurité introuvable : $type_de_controle", E_USER_WARNING);
|
|
|
721 |
}
|
|
|
722 |
}
|
|
|
723 |
|
|
|
724 |
/**
|
|
|
725 |
* Transform a cache id into a file name and return it
|
|
|
726 |
*
|
|
|
727 |
* @param string $id Cache id
|
|
|
728 |
* @return string File name
|
|
|
729 |
*/
|
|
|
730 |
protected function transformaterIdEnNomFichier($id) {
|
|
|
731 |
$prefixe = $this->options['fichier_prefixe'];
|
| 248 |
jpm |
732 |
$resultat = $prefixe.'---'.$id;
|
| 246 |
jpm |
733 |
return $resultat;
|
|
|
734 |
}
|
|
|
735 |
|
|
|
736 |
/**
|
|
|
737 |
* Make and return a file name (with path)
|
|
|
738 |
*
|
|
|
739 |
* @param string $id Cache id
|
|
|
740 |
* @return string File name (with path)
|
|
|
741 |
*/
|
|
|
742 |
protected function getFichierNom($id) {
|
|
|
743 |
$path = $this->getChemin($id);
|
|
|
744 |
$fileName = $this->transformaterIdEnNomFichier($id);
|
|
|
745 |
return $path . $fileName;
|
|
|
746 |
}
|
|
|
747 |
|
|
|
748 |
/**
|
|
|
749 |
* Return the complete directory path of a filename (including hashedDirectoryStructure)
|
|
|
750 |
*
|
|
|
751 |
* @param string $id Cache id
|
|
|
752 |
* @param boolean $decoupage if true, returns array of directory parts instead of single string
|
|
|
753 |
* @return string Complete directory path
|
|
|
754 |
*/
|
|
|
755 |
protected function getChemin($id, $decoupage = false) {
|
|
|
756 |
$morceaux = array();
|
|
|
757 |
$chemin = $this->options['stockage_chemin'];
|
|
|
758 |
$prefixe = $this->options['fichier_prefixe'];
|
|
|
759 |
if ($this->options['dossier_niveau'] > 0) {
|
|
|
760 |
$hash = hash('adler32', $id);
|
|
|
761 |
for ($i = 0 ; $i < $this->options['dossier_niveau'] ; $i++) {
|
| 248 |
jpm |
762 |
$chemin .= $prefixe.'--'.substr($hash, 0, $i + 1).DS;
|
| 246 |
jpm |
763 |
$morceaux[] = $chemin;
|
|
|
764 |
}
|
|
|
765 |
}
|
|
|
766 |
return ($decoupage) ? $morceaux : $chemin;
|
|
|
767 |
}
|
|
|
768 |
|
|
|
769 |
/**
|
|
|
770 |
* Make the directory strucuture for the given id
|
|
|
771 |
*
|
|
|
772 |
* @param string $id cache id
|
|
|
773 |
* @return boolean true
|
|
|
774 |
*/
|
|
|
775 |
protected function lancerMkdirEtChmodRecursif($id) {
|
|
|
776 |
$resultat = true;
|
|
|
777 |
if ($this->options['dossier_niveau'] > 0) {
|
|
|
778 |
$chemins = $this->getChemin($id, true);
|
|
|
779 |
foreach ($chemins as $chemin) {
|
|
|
780 |
if (!is_dir($chemin)) {
|
|
|
781 |
@mkdir($chemin, $this->options['dossier_umask']);
|
|
|
782 |
@chmod($chemin, $this->options['dossier_umask']); // see #ZF-320 (this line is required in some configurations)
|
|
|
783 |
}
|
|
|
784 |
}
|
|
|
785 |
}
|
|
|
786 |
return $resultat;
|
|
|
787 |
}
|
|
|
788 |
|
|
|
789 |
/**
|
|
|
790 |
* Test if the given cache id is available (and still valid as a cache record)
|
|
|
791 |
*
|
|
|
792 |
* @param string $id Cache id
|
|
|
793 |
* @param boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
|
|
|
794 |
* @return boolean|mixed false (a cache is not available) or "last modified" timestamp (int) of the available cache record
|
|
|
795 |
*/
|
|
|
796 |
protected function testerExistenceCache($id, $ne_pas_tester_validiter_du_cache) {
|
|
|
797 |
$resultat = false;
|
|
|
798 |
if ($metadonnees = $this->getMetadonnees($id)) {
|
|
|
799 |
if ($ne_pas_tester_validiter_du_cache || (time() <= $metadonnees['expiration'])) {
|
|
|
800 |
$resultat = $metadonnees['mtime'];
|
|
|
801 |
}
|
|
|
802 |
}
|
|
|
803 |
return $resultat;
|
|
|
804 |
}
|
|
|
805 |
|
|
|
806 |
/**
|
|
|
807 |
* Return the file content of the given file
|
|
|
808 |
*
|
|
|
809 |
* @param string $file File complete path
|
|
|
810 |
* @return string File content (or false if problem)
|
|
|
811 |
*/
|
|
|
812 |
protected function getContenuFichier($fichier) {
|
|
|
813 |
$resultat = false;
|
|
|
814 |
if (is_file($fichier)) {
|
|
|
815 |
$f = @fopen($fichier, 'rb');
|
|
|
816 |
if ($f) {
|
|
|
817 |
if ($this->options['fichier_verrou']) @flock($f, LOCK_SH);
|
|
|
818 |
$resultat = stream_get_contents($f);
|
|
|
819 |
if ($this->options['fichier_verrou']) @flock($f, LOCK_UN);
|
|
|
820 |
@fclose($f);
|
|
|
821 |
}
|
|
|
822 |
}
|
|
|
823 |
return $resultat;
|
|
|
824 |
}
|
|
|
825 |
|
|
|
826 |
/**
|
|
|
827 |
* Put the given string into the given file
|
|
|
828 |
*
|
|
|
829 |
* @param string $file File complete path
|
|
|
830 |
* @param string $string String to put in file
|
|
|
831 |
* @return boolean true if no problem
|
|
|
832 |
*/
|
|
|
833 |
protected function setContenuFichier($fichier, $chaine) {
|
|
|
834 |
$resultat = false;
|
|
|
835 |
$f = @fopen($fichier, 'ab+');
|
|
|
836 |
if ($f) {
|
|
|
837 |
if ($this->options['fichier_verrou']) @flock($f, LOCK_EX);
|
|
|
838 |
fseek($f, 0);
|
|
|
839 |
ftruncate($f, 0);
|
|
|
840 |
$tmp = @fwrite($f, $chaine);
|
|
|
841 |
if (!($tmp === FALSE)) {
|
|
|
842 |
$resultat = true;
|
|
|
843 |
}
|
|
|
844 |
@fclose($f);
|
|
|
845 |
}
|
|
|
846 |
@chmod($fichier, $this->options['fichier_umask']);
|
|
|
847 |
return $resultat;
|
|
|
848 |
}
|
|
|
849 |
|
|
|
850 |
/**
|
|
|
851 |
* Transform a file name into cache id and return it
|
|
|
852 |
*
|
|
|
853 |
* @param string $fileName File name
|
|
|
854 |
* @return string Cache id
|
|
|
855 |
*/
|
|
|
856 |
protected function transformerNomFichierEnId($nom_de_fichier) {
|
|
|
857 |
$prefixe = $this->options['fichier_prefixe'];
|
|
|
858 |
return preg_replace('~^' . $prefixe . '---(.*)$~', '$1', $nom_de_fichier);
|
|
|
859 |
}
|
|
|
860 |
}
|
|
|
861 |
?>
|