diff options
Diffstat (limited to 'phpBB/phpbb/cache/driver/base.php')
| -rw-r--r-- | phpBB/phpbb/cache/driver/base.php | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/phpBB/phpbb/cache/driver/base.php b/phpBB/phpbb/cache/driver/base.php index 685cdc4e57..4c20ad916d 100644 --- a/phpBB/phpbb/cache/driver/base.php +++ b/phpBB/phpbb/cache/driver/base.php @@ -15,4 +15,217 @@ namespace phpbb\cache\driver; abstract class base implements \phpbb\cache\driver\driver_interface { + var $vars = array(); + var $is_modified = false; + + var $sql_rowset = array(); + var $sql_row_pointer = array(); + var $cache_dir = ''; + + /** + * {@inheritDoc} + */ + function purge() + { + // Purge all phpbb cache files + try + { + $iterator = new \DirectoryIterator($this->cache_dir); + } + catch (\Exception $e) + { + return; + } + + foreach ($iterator as $fileInfo) + { + if ($fileInfo->isDot()) + { + continue; + } + $filename = $fileInfo->getFilename(); + if ($fileInfo->isDir()) + { + $this->remove_dir($fileInfo->getPathname()); + } + else if (strpos($filename, 'container_') === 0 || + strpos($filename, 'url_matcher') === 0 || + strpos($filename, 'sql_') === 0 || + strpos($filename, 'data_') === 0) + { + $this->remove_file($fileInfo->getPathname()); + } + } + + unset($this->vars); + unset($this->sql_rowset); + unset($this->sql_row_pointer); + + $this->vars = array(); + $this->sql_rowset = array(); + $this->sql_row_pointer = array(); + + $this->is_modified = false; + } + + /** + * {@inheritDoc} + */ + function unload() + { + $this->save(); + unset($this->vars); + unset($this->sql_rowset); + unset($this->sql_row_pointer); + + $this->vars = array(); + $this->sql_rowset = array(); + $this->sql_row_pointer = array(); + } + + /** + * {@inheritDoc} + */ + function sql_load($query) + { + // Remove extra spaces and tabs + $query = preg_replace('/[\n\r\s\t]+/', ' ', $query); + + if (($rowset = $this->_read('sql_' . md5($query))) === false) + { + return false; + } + + $query_id = sizeof($this->sql_rowset); + $this->sql_rowset[$query_id] = $rowset; + $this->sql_row_pointer[$query_id] = 0; + + return $query_id; + } + + /** + * {@inheritDoc} + */ + function sql_exists($query_id) + { + return isset($this->sql_rowset[$query_id]); + } + + /** + * {@inheritDoc} + */ + function sql_fetchrow($query_id) + { + if ($this->sql_row_pointer[$query_id] < sizeof($this->sql_rowset[$query_id])) + { + return $this->sql_rowset[$query_id][$this->sql_row_pointer[$query_id]++]; + } + + return false; + } + + /** + * {@inheritDoc} + */ + function sql_fetchfield($query_id, $field) + { + if ($this->sql_row_pointer[$query_id] < sizeof($this->sql_rowset[$query_id])) + { + return (isset($this->sql_rowset[$query_id][$this->sql_row_pointer[$query_id]][$field])) ? $this->sql_rowset[$query_id][$this->sql_row_pointer[$query_id]++][$field] : false; + } + + return false; + } + + /** + * {@inheritDoc} + */ + function sql_rowseek($rownum, $query_id) + { + if ($rownum >= sizeof($this->sql_rowset[$query_id])) + { + return false; + } + + $this->sql_row_pointer[$query_id] = $rownum; + return true; + } + + /** + * {@inheritDoc} + */ + function sql_freeresult($query_id) + { + if (!isset($this->sql_rowset[$query_id])) + { + return false; + } + + unset($this->sql_rowset[$query_id]); + unset($this->sql_row_pointer[$query_id]); + + return true; + } + + /** + * Removes/unlinks file + * + * @param string $filename Filename to remove + * @param bool $check Check file permissions + * @return bool True if the file was successfully removed, otherwise false + */ + function remove_file($filename, $check = false) + { + if (!function_exists('phpbb_is_writable')) + { + global $phpbb_root_path, $phpEx; + include($phpbb_root_path . 'includes/functions.' . $phpEx); + } + + if ($check && !phpbb_is_writable($this->cache_dir)) + { + // E_USER_ERROR - not using language entry - intended. + trigger_error('Unable to remove files within ' . $this->cache_dir . '. Please check directory permissions.', E_USER_ERROR); + } + + return @unlink($filename); + } + + /** + * Remove directory + * + * @param string $dir Directory to remove + * + * @return null + */ + protected function remove_dir($dir) + { + try + { + $iterator = new \DirectoryIterator($dir); + } + catch (\Exception $e) + { + return; + } + + foreach ($iterator as $fileInfo) + { + if ($fileInfo->isDot()) + { + continue; + } + + if ($fileInfo->isDir()) + { + $this->remove_dir($fileInfo->getPathname()); + } + else + { + $this->remove_file($fileInfo->getPathname()); + } + } + + @rmdir($dir); + } } |