| | |
| | | <?php |
| | | /** |
| | | * Filesystem Attachments |
| | | * Database Attachments |
| | | * |
| | | * This plugin which provides database backed storage for temporary |
| | | * attachment file handling. The primary advantage of this plugin |
| | |
| | | require_once('plugins/filesystem_attachments/filesystem_attachments.php'); |
| | | class database_attachments extends filesystem_attachments |
| | | { |
| | | // Cache object |
| | | protected $cache; |
| | | |
| | | // A prefix for the cache key used in the session and in the key field of the cache table |
| | | private $cache_prefix = "db_attach"; |
| | | |
| | | /** |
| | | * Helper method to generate a unique key for the given attachment file |
| | | */ |
| | | private function _key($args) |
| | | { |
| | | $uname = $args['path'] ? $args['path'] : $args['name']; |
| | | return $this->cache_prefix . $args['group'] . md5(mktime() . $uname . $_SESSION['user_id']); |
| | | } |
| | | protected $prefix = "db_attach"; |
| | | |
| | | /** |
| | | * Save a newly uploaded attachment |
| | |
| | | function upload($args) |
| | | { |
| | | $args['status'] = false; |
| | | $rcmail = rcmail::get_instance(); |
| | | $key = $this->_key($args); |
| | | |
| | | $data = file_get_contents($args['path']); |
| | | $cache = $this->get_cache(); |
| | | $key = $this->_key($args); |
| | | $data = file_get_contents($args['path']); |
| | | |
| | | if ($data === false) |
| | | if ($data === false) { |
| | | return $args; |
| | | } |
| | | |
| | | $data = base64_encode($data); |
| | | |
| | | $status = $rcmail->db->query( |
| | | "INSERT INTO ".$rcmail->db->table_name('cache') |
| | | ." (created, user_id, cache_key, data)" |
| | | ." VALUES (".$rcmail->db->now().", ?, ?, ?)", |
| | | $_SESSION['user_id'], |
| | | $key, |
| | | $data); |
| | | $data = base64_encode($data); |
| | | $status = $cache->write($key, $data); |
| | | |
| | | if ($status) { |
| | | $args['id'] = $key; |
| | |
| | | function save($args) |
| | | { |
| | | $args['status'] = false; |
| | | $rcmail = rcmail::get_instance(); |
| | | |
| | | $key = $this->_key($args); |
| | | $cache = $this->get_cache(); |
| | | $key = $this->_key($args); |
| | | |
| | | if ($args['path']) { |
| | | $args['data'] = file_get_contents($args['path']); |
| | | |
| | | if ($args['data'] === false) |
| | | if ($args['data'] === false) { |
| | | return $args; |
| | | } |
| | | } |
| | | |
| | | $data = base64_encode($args['data']); |
| | | |
| | | $status = $rcmail->db->query( |
| | | "INSERT INTO ".$rcmail->db->table_name('cache') |
| | | ." (created, user_id, cache_key, data)" |
| | | ." VALUES (".$rcmail->db->now().", ?, ?, ?)", |
| | | $_SESSION['user_id'], |
| | | $key, |
| | | $data); |
| | | $data = base64_encode($args['data']); |
| | | $status = $cache->write($key, $data); |
| | | |
| | | if ($status) { |
| | | $args['id'] = $key; |
| | |
| | | function remove($args) |
| | | { |
| | | $args['status'] = false; |
| | | $rcmail = rcmail::get_instance(); |
| | | $status = $rcmail->db->query( |
| | | "DELETE FROM ".$rcmail->db->table_name('cache') |
| | | ." WHERE user_id = ?" |
| | | ." AND cache_key = ?", |
| | | $_SESSION['user_id'], |
| | | $args['id']); |
| | | |
| | | $cache = $this->get_cache(); |
| | | $status = $cache->remove($args['id']); |
| | | |
| | | if ($status) { |
| | | $args['status'] = true; |
| | |
| | | */ |
| | | function get($args) |
| | | { |
| | | $rcmail = rcmail::get_instance(); |
| | | $cache = $this->get_cache(); |
| | | $data = $cache->read($args['id']); |
| | | |
| | | $sql_result = $rcmail->db->query( |
| | | "SELECT data" |
| | | ." FROM ".$rcmail->db->table_name('cache') |
| | | ." WHERE user_id=?" |
| | | ." AND cache_key=?", |
| | | $_SESSION['user_id'], |
| | | $args['id']); |
| | | |
| | | if ($sql_arr = $rcmail->db->fetch_assoc($sql_result)) { |
| | | $args['data'] = base64_decode($sql_arr['data']); |
| | | if ($data) { |
| | | $args['data'] = base64_decode($data); |
| | | $args['status'] = true; |
| | | } |
| | | |
| | |
| | | */ |
| | | function cleanup($args) |
| | | { |
| | | $prefix = $this->cache_prefix . $args['group']; |
| | | $rcmail = rcmail::get_instance(); |
| | | $rcmail->db->query( |
| | | "DELETE FROM ".$rcmail->db->table_name('cache') |
| | | ." WHERE user_id = ?" |
| | | ." AND cache_key LIKE '{$prefix}%'", |
| | | $_SESSION['user_id']); |
| | | $cache = $this->get_cache(); |
| | | $cache->remove($args['group'], true); |
| | | } |
| | | |
| | | /** |
| | | * Helper method to generate a unique key for the given attachment file |
| | | */ |
| | | protected function _key($args) |
| | | { |
| | | $uname = $args['path'] ? $args['path'] : $args['name']; |
| | | return $args['group'] . md5(mktime() . $uname . $_SESSION['user_id']); |
| | | } |
| | | |
| | | /** |
| | | * Initialize and return cache object |
| | | */ |
| | | protected function get_cache() |
| | | { |
| | | if (!$this->cache) { |
| | | $this->load_config(); |
| | | |
| | | $rcmail = rcube::get_instance(); |
| | | $ttl = 12 * 60 * 60; // default: 12 hours |
| | | $ttl = $rcmail->config->get('database_attachments_cache_ttl', $ttl); |
| | | $type = $rcmail->config->get('database_attachments_cache', 'db'); |
| | | |
| | | // Init SQL cache (disable cache data serialization) |
| | | $this->cache = $rcmail->get_cache($this->prefix, 'db', $ttl, false); |
| | | } |
| | | |
| | | return $this->cache; |
| | | } |
| | | } |