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- <?php
-
- class HTMLPurifier_DefinitionCache_Serializer extends HTMLPurifier_DefinitionCache
- {
-
-
-
- public function add($def, $config)
- {
- if (!$this->checkDefType($def)) {
- return;
- }
- $file = $this->generateFilePath($config);
- if (file_exists($file)) {
- return false;
- }
- if (!$this->_prepareDir($config)) {
- return false;
- }
- return $this->_write($file, serialize($def), $config);
- }
-
-
-
- public function set($def, $config)
- {
- if (!$this->checkDefType($def)) {
- return;
- }
- $file = $this->generateFilePath($config);
- if (!$this->_prepareDir($config)) {
- return false;
- }
- return $this->_write($file, serialize($def), $config);
- }
-
-
-
- public function replace($def, $config)
- {
- if (!$this->checkDefType($def)) {
- return;
- }
- $file = $this->generateFilePath($config);
- if (!file_exists($file)) {
- return false;
- }
- if (!$this->_prepareDir($config)) {
- return false;
- }
- return $this->_write($file, serialize($def), $config);
- }
-
-
-
- public function get($config)
- {
- $file = $this->generateFilePath($config);
- if (!file_exists($file)) {
- return false;
- }
- return unserialize(file_get_contents($file));
- }
-
-
-
- public function remove($config)
- {
- $file = $this->generateFilePath($config);
- if (!file_exists($file)) {
- return false;
- }
- return unlink($file);
- }
-
-
-
- public function flush($config)
- {
- if (!$this->_prepareDir($config)) {
- return false;
- }
- $dir = $this->generateDirectoryPath($config);
- $dh = opendir($dir);
-
-
-
- if (false === $dh) {
- return false;
- }
- while (false !== ($filename = readdir($dh))) {
- if (empty($filename)) {
- continue;
- }
- if ($filename[0] === '.') {
- continue;
- }
- unlink($dir . '/' . $filename);
- }
- return true;
- }
-
-
-
- public function cleanup($config)
- {
- if (!$this->_prepareDir($config)) {
- return false;
- }
- $dir = $this->generateDirectoryPath($config);
- $dh = opendir($dir);
-
- if (false === $dh) {
- return false;
- }
- while (false !== ($filename = readdir($dh))) {
- if (empty($filename)) {
- continue;
- }
- if ($filename[0] === '.') {
- continue;
- }
- $key = substr($filename, 0, strlen($filename) - 4);
- if ($this->isOld($key, $config)) {
- unlink($dir . '/' . $filename);
- }
- }
- return true;
- }
-
-
-
- public function generateFilePath($config)
- {
- $key = $this->generateKey($config);
- return $this->generateDirectoryPath($config) . '/' . $key . '.ser';
- }
-
-
-
- public function generateDirectoryPath($config)
- {
- $base = $this->generateBaseDirectoryPath($config);
- return $base . '/' . $this->type;
- }
-
-
-
- public function generateBaseDirectoryPath($config)
- {
- $base = $config->get('Cache.SerializerPath');
- $base = is_null($base) ? HTMLPURIFIER_PREFIX . '/HTMLPurifier/DefinitionCache/Serializer' : $base;
- return $base;
- }
-
-
-
- private function _write($file, $data, $config)
- {
- $result = file_put_contents($file, $data);
- if ($result !== false) {
-
- $chmod = $config->get('Cache.SerializerPermissions');
- if ($chmod === null) {
-
- } else {
- $chmod = $chmod & 0666;
- chmod($file, $chmod);
- }
- }
- return $result;
- }
-
-
-
- private function _prepareDir($config)
- {
- $directory = $this->generateDirectoryPath($config);
- $chmod = $config->get('Cache.SerializerPermissions');
- if (!is_dir($directory)) {
- $base = $this->generateBaseDirectoryPath($config);
- if (!is_dir($base)) {
- trigger_error(
- 'Base directory ' . $base . ' does not exist,
- please create or change using %Cache.SerializerPath',
- E_USER_WARNING
- );
- return false;
- } elseif (!$this->_testPermissions($base, $chmod)) {
- return false;
- }
- if ($chmod === null) {
- trigger_error(
- 'Base directory ' . $base . ' does not exist,
- please create or change using %Cache.SerializerPath',
- E_USER_WARNING
- );
- return false;
- }
- if ($chmod !== null) {
- mkdir($directory, $chmod);
- } else {
- mkdir($directory);
- }
- if (!$this->_testPermissions($directory, $chmod)) {
- trigger_error(
- 'Base directory ' . $base . ' does not exist,
- please create or change using %Cache.SerializerPath',
- E_USER_WARNING
- );
- return false;
- }
- } elseif (!$this->_testPermissions($directory, $chmod)) {
- return false;
- }
- return true;
- }
-
-
-
- private function _testPermissions($dir, $chmod)
- {
-
- if (is_writable($dir)) {
- return true;
- }
- if (!is_dir($dir)) {
-
-
- trigger_error(
- 'Directory ' . $dir . ' does not exist',
- E_USER_WARNING
- );
- return false;
- }
- if (function_exists('posix_getuid') && $chmod !== null) {
-
- if (fileowner($dir) === posix_getuid()) {
-
- $chmod = $chmod | 0700;
- if (chmod($dir, $chmod)) {
- return true;
- }
- } elseif (filegroup($dir) === posix_getgid()) {
- $chmod = $chmod | 0070;
- } else {
-
-
- $chmod = $chmod | 0777;
- }
- trigger_error(
- 'Directory ' . $dir . ' not writable, ' .
- 'please chmod to ' . decoct($chmod),
- E_USER_WARNING
- );
- } else {
-
- trigger_error(
- 'Directory ' . $dir . ' not writable, ' .
- 'please alter file permissions',
- E_USER_WARNING
- );
- }
- return false;
- }
- }
-
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