diff options
Diffstat (limited to 'admin/survey/classes/htmlpurifier-4.3.0/library/HTMLPurifier/DefinitionCache/Serializer.php')
| -rw-r--r-- | admin/survey/classes/htmlpurifier-4.3.0/library/HTMLPurifier/DefinitionCache/Serializer.php | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/admin/survey/classes/htmlpurifier-4.3.0/library/HTMLPurifier/DefinitionCache/Serializer.php b/admin/survey/classes/htmlpurifier-4.3.0/library/HTMLPurifier/DefinitionCache/Serializer.php new file mode 100644 index 0000000..1627f3b --- /dev/null +++ b/admin/survey/classes/htmlpurifier-4.3.0/library/HTMLPurifier/DefinitionCache/Serializer.php @@ -0,0 +1,191 @@ +<?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);
+ while (false !== ($filename = readdir($dh))) {
+ if (empty($filename)) continue;
+ if ($filename[0] === '.') continue;
+ unlink($dir . '/' . $filename);
+ }
+ }
+
+ public function cleanup($config) {
+ if (!$this->_prepareDir($config)) return false;
+ $dir = $this->generateDirectoryPath($config);
+ $dh = opendir($dir);
+ 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 . '/' . $filename);
+ }
+ }
+
+ /**
+ * Generates the file path to the serial file corresponding to
+ * the configuration and definition name
+ * @todo Make protected
+ */
+ public function generateFilePath($config) {
+ $key = $this->generateKey($config);
+ return $this->generateDirectoryPath($config) . '/' . $key . '.ser';
+ }
+
+ /**
+ * Generates the path to the directory contain this cache's serial files
+ * @note No trailing slash
+ * @todo Make protected
+ */
+ public function generateDirectoryPath($config) {
+ $base = $this->generateBaseDirectoryPath($config);
+ return $base . '/' . $this->type;
+ }
+
+ /**
+ * Generates path to base directory that contains all definition type
+ * serials
+ * @todo Make protected
+ */
+ public function generateBaseDirectoryPath($config) {
+ $base = $config->get('Cache.SerializerPath');
+ $base = is_null($base) ? HTMLPURIFIER_PREFIX . '/HTMLPurifier/DefinitionCache/Serializer' : $base;
+ return $base;
+ }
+
+ /**
+ * Convenience wrapper function for file_put_contents
+ * @param $file File name to write to
+ * @param $data Data to write into file
+ * @param $config Config object
+ * @return Number of bytes written if success, or false if failure.
+ */
+ private function _write($file, $data, $config) {
+ $result = file_put_contents($file, $data);
+ if ($result !== false) {
+ // set permissions of the new file (no execute)
+ $chmod = $config->get('Cache.SerializerPermissions');
+ if (!$chmod) {
+ $chmod = 0644; // invalid config or simpletest
+ }
+ $chmod = $chmod & 0666;
+ chmod($file, $chmod);
+ }
+ return $result;
+ }
+
+ /**
+ * Prepares the directory that this type stores the serials in
+ * @param $config Config object
+ * @return True if successful
+ */
+ private function _prepareDir($config) {
+ $directory = $this->generateDirectoryPath($config);
+ $chmod = $config->get('Cache.SerializerPermissions');
+ if (!$chmod) {
+ $chmod = 0755; // invalid config or simpletest
+ }
+ if (!is_dir($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;
+ }
+ $old = umask(0000);
+ mkdir($directory, $chmod);
+ umask($old);
+ } elseif (!$this->_testPermissions($directory, $chmod)) {
+ return false;
+ }
+ return true;
+ }
+
+ /**
+ * Tests permissions on a directory and throws out friendly
+ * error messages and attempts to chmod it itself if possible
+ * @param $dir Directory path
+ * @param $chmod Permissions
+ * @return True if directory writable
+ */
+ private function _testPermissions($dir, $chmod) {
+ // early abort, if it is writable, everything is hunky-dory
+ if (is_writable($dir)) return true;
+ if (!is_dir($dir)) {
+ // generally, you'll want to handle this beforehand
+ // so a more specific error message can be given
+ trigger_error('Directory '.$dir.' does not exist',
+ E_USER_WARNING);
+ return false;
+ }
+ if (function_exists('posix_getuid')) {
+ // POSIX system, we can give more specific advice
+ if (fileowner($dir) === posix_getuid()) {
+ // we can chmod it ourselves
+ $chmod = $chmod | 0700;
+ if (chmod($dir, $chmod)) return true;
+ } elseif (filegroup($dir) === posix_getgid()) {
+ $chmod = $chmod | 0070;
+ } else {
+ // PHP's probably running as nobody, so we'll
+ // need to give global permissions
+ $chmod = $chmod | 0777;
+ }
+ trigger_error('Directory '.$dir.' not writable, '.
+ 'please chmod to ' . decoct($chmod),
+ E_USER_WARNING);
+ } else {
+ // generic error message
+ trigger_error('Directory '.$dir.' not writable, '.
+ 'please alter file permissions',
+ E_USER_WARNING);
+ }
+ return false;
+ }
+
+}
+
+// vim: et sw=4 sts=4
|