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Diffstat (limited to 'lib/Zend/Mail/Storage/Mbox.php')
| -rw-r--r-- | lib/Zend/Mail/Storage/Mbox.php | 447 |
1 files changed, 447 insertions, 0 deletions
diff --git a/lib/Zend/Mail/Storage/Mbox.php b/lib/Zend/Mail/Storage/Mbox.php new file mode 100644 index 0000000..8be42d8 --- /dev/null +++ b/lib/Zend/Mail/Storage/Mbox.php @@ -0,0 +1,447 @@ +<?php +/** + * Zend Framework + * + * LICENSE + * + * This source file is subject to the new BSD license that is bundled + * with this package in the file LICENSE.txt. + * It is also available through the world-wide-web at this URL: + * http://framework.zend.com/license/new-bsd + * If you did not receive a copy of the license and are unable to + * obtain it through the world-wide-web, please send an email + * to license@zend.com so we can send you a copy immediately. + * + * @category Zend + * @package Zend_Mail + * @subpackage Storage + * @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + * @version $Id: Mbox.php 12519 2008-11-10 18:41:24Z alexander $ + */ + + +/** + * @see Zend_Loader + * May be used in constructor, but commented out for now + */ +// require_once 'Zend/Loader.php'; + +/** + * @see Zend_Mail_Storage_Abstract + */ +require_once 'Zend/Mail/Storage/Abstract.php'; + +/** + * @see Zend_Mail_Message_File + */ +require_once 'Zend/Mail/Message/File.php'; + + +/** + * @category Zend + * @package Zend_Mail + * @subpackage Storage + * @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + */ +class Zend_Mail_Storage_Mbox extends Zend_Mail_Storage_Abstract +{ + /** + * file handle to mbox file + * @var null|resource + */ + protected $_fh; + + /** + * filename of mbox file for __wakeup + * @var string + */ + protected $_filename; + + /** + * modification date of mbox file for __wakeup + * @var int + */ + protected $_filemtime; + + /** + * start and end position of messages as array('start' => start, 'seperator' => headersep, 'end' => end) + * @var array + */ + protected $_positions; + + /** + * used message class, change it in an extened class to extend the returned message class + * @var string + */ + protected $_messageClass = 'Zend_Mail_Message_File'; + + /** + * Count messages all messages in current box + * + * @return int number of messages + * @throws Zend_Mail_Storage_Exception + */ + public function countMessages() + { + return count($this->_positions); + } + + + /** + * Get a list of messages with number and size + * + * @param int|null $id number of message or null for all messages + * @return int|array size of given message of list with all messages as array(num => size) + */ + public function getSize($id = 0) + { + if ($id) { + $pos = $this->_positions[$id - 1]; + return $pos['end'] - $pos['start']; + } + + $result = array(); + foreach ($this->_positions as $num => $pos) { + $result[$num + 1] = $pos['end'] - $pos['start']; + } + + return $result; + } + + + /** + * Get positions for mail message or throw exeption if id is invalid + * + * @param int $id number of message + * @return array positions as in _positions + * @throws Zend_Mail_Storage_Exception + */ + protected function _getPos($id) + { + if (!isset($this->_positions[$id - 1])) { + /** + * @see Zend_Mail_Storage_Exception + */ + require_once 'Zend/Mail/Storage/Exception.php'; + throw new Zend_Mail_Storage_Exception('id does not exist'); + } + + return $this->_positions[$id - 1]; + } + + + /** + * Fetch a message + * + * @param int $id number of message + * @return Zend_Mail_Message_File + * @throws Zend_Mail_Storage_Exception + */ + public function getMessage($id) + { + // TODO that's ugly, would be better to let the message class decide + if (strtolower($this->_messageClass) == 'zend_mail_message_file' || is_subclass_of($this->_messageClass, 'zend_mail_message_file')) { + // TODO top/body lines + $messagePos = $this->_getPos($id); + return new $this->_messageClass(array('file' => $this->_fh, 'startPos' => $messagePos['start'], + 'endPos' => $messagePos['end'])); + } + + $bodyLines = 0; // TODO: need a way to change that + + $message = $this->getRawHeader($id); + // file pointer is after headers now + if ($bodyLines) { + $message .= "\n"; + while ($bodyLines-- && ftell($this->_fh) < $this->_positions[$id - 1]['end']) { + $message .= fgets($this->_fh); + } + } + + return new $this->_messageClass(array('handler' => $this, 'id' => $id, 'headers' => $message)); + } + + /* + * Get raw header of message or part + * + * @param int $id number of message + * @param null|array|string $part path to part or null for messsage header + * @param int $topLines include this many lines with header (after an empty line) + * @return string raw header + * @throws Zend_Mail_Protocol_Exception + * @throws Zend_Mail_Storage_Exception + */ + public function getRawHeader($id, $part = null, $topLines = 0) + { + if ($part !== null) { + // TODO: implement + /** + * @see Zend_Mail_Storage_Exception + */ + require_once 'Zend/Mail/Storage/Exception.php'; + throw new Zend_Mail_Storage_Exception('not implemented'); + } + $messagePos = $this->_getPos($id); + // TODO: toplines + return stream_get_contents($this->_fh, $messagePos['separator'] - $messagePos['start'], $messagePos['start']); + } + + /* + * Get raw content of message or part + * + * @param int $id number of message + * @param null|array|string $part path to part or null for messsage content + * @return string raw content + * @throws Zend_Mail_Protocol_Exception + * @throws Zend_Mail_Storage_Exception + */ + public function getRawContent($id, $part = null) + { + if ($part !== null) { + // TODO: implement + /** + * @see Zend_Mail_Storage_Exception + */ + require_once 'Zend/Mail/Storage/Exception.php'; + throw new Zend_Mail_Storage_Exception('not implemented'); + } + $messagePos = $this->_getPos($id); + return stream_get_contents($this->_fh, $messagePos['end'] - $messagePos['separator'], $messagePos['separator']); + } + + /** + * Create instance with parameters + * Supported parameters are: + * - filename filename of mbox file + * + * @param $params array mail reader specific parameters + * @throws Zend_Mail_Storage_Exception + */ + public function __construct($params) + { + if (is_array($params)) { + $params = (object)$params; + } + + if (!isset($params->filename) /* || Zend_Loader::isReadable($params['filename']) */) { + /** + * @see Zend_Mail_Storage_Exception + */ + require_once 'Zend/Mail/Storage/Exception.php'; + throw new Zend_Mail_Storage_Exception('no valid filename given in params'); + } + + $this->_openMboxFile($params->filename); + $this->_has['top'] = true; + $this->_has['uniqueid'] = false; + } + + /** + * check if given file is a mbox file + * + * if $file is a resource its file pointer is moved after the first line + * + * @param resource|string $file stream resource of name of file + * @param bool $fileIsString file is string or resource + * @return bool file is mbox file + */ + protected function _isMboxFile($file, $fileIsString = true) + { + if ($fileIsString) { + $file = @fopen($file, 'r'); + if (!$file) { + return false; + } + } else { + fseek($file, 0); + } + + $result = false; + + $line = fgets($file); + if (strpos($line, 'From ') === 0) { + $result = true; + } + + if ($fileIsString) { + @fclose($file); + } + + return $result; + } + + /** + * open given file as current mbox file + * + * @param string $filename filename of mbox file + * @return null + * @throws Zend_Mail_Storage_Exception + */ + protected function _openMboxFile($filename) + { + if ($this->_fh) { + $this->close(); + } + + $this->_fh = @fopen($filename, 'r'); + if (!$this->_fh) { + /** + * @see Zend_Mail_Storage_Exception + */ + require_once 'Zend/Mail/Storage/Exception.php'; + throw new Zend_Mail_Storage_Exception('cannot open mbox file'); + } + $this->_filename = $filename; + $this->_filemtime = filemtime($this->_filename); + + if (!$this->_isMboxFile($this->_fh, false)) { + @fclose($this->_fh); + /** + * @see Zend_Mail_Storage_Exception + */ + require_once 'Zend/Mail/Storage/Exception.php'; + throw new Zend_Mail_Storage_Exception('file is not a valid mbox format'); + } + + $messagePos = array('start' => ftell($this->_fh), 'separator' => 0, 'end' => 0); + while (($line = fgets($this->_fh)) !== false) { + if (strpos($line, 'From ') === 0) { + $messagePos['end'] = ftell($this->_fh) - strlen($line) - 2; // + newline + if (!$messagePos['separator']) { + $messagePos['separator'] = $messagePos['end']; + } + $this->_positions[] = $messagePos; + $messagePos = array('start' => ftell($this->_fh), 'separator' => 0, 'end' => 0); + } + if (!$messagePos['separator'] && !trim($line)) { + $messagePos['separator'] = ftell($this->_fh); + } + } + + $messagePos['end'] = ftell($this->_fh); + if (!$messagePos['separator']) { + $messagePos['separator'] = $messagePos['end']; + } + $this->_positions[] = $messagePos; + } + + /** + * Close resource for mail lib. If you need to control, when the resource + * is closed. Otherwise the destructor would call this. + * + * @return void + */ + public function close() + { + @fclose($this->_fh); + $this->_positions = array(); + } + + + /** + * Waste some CPU cycles doing nothing. + * + * @return void + */ + public function noop() + { + return true; + } + + + /** + * stub for not supported message deletion + * + * @return null + * @throws Zend_Mail_Storage_Exception + */ + public function removeMessage($id) + { + /** + * @see Zend_Mail_Storage_Exception + */ + require_once 'Zend/Mail/Storage/Exception.php'; + throw new Zend_Mail_Storage_Exception('mbox is read-only'); + } + + /** + * get unique id for one or all messages + * + * Mbox does not support unique ids (yet) - it's always the same as the message number. + * That shouldn't be a problem, because we can't change mbox files. Therefor the message + * number is save enough. + * + * @param int|null $id message number + * @return array|string message number for given message or all messages as array + * @throws Zend_Mail_Storage_Exception + */ + public function getUniqueId($id = null) + { + if ($id) { + // check if id exists + $this->_getPos($id); + return $id; + } + + $range = range(1, $this->countMessages()); + return array_combine($range, $range); + } + + /** + * get a message number from a unique id + * + * I.e. if you have a webmailer that supports deleting messages you should use unique ids + * as parameter and use this method to translate it to message number right before calling removeMessage() + * + * @param string $id unique id + * @return int message number + * @throws Zend_Mail_Storage_Exception + */ + public function getNumberByUniqueId($id) + { + // check if id exists + $this->_getPos($id); + return $id; + } + + /** + * magic method for serialize() + * + * with this method you can cache the mbox class + * + * @return array name of variables + */ + public function __sleep() + { + return array('_filename', '_positions', '_filemtime'); + } + + /** + * magic method for unserialize() + * + * with this method you can cache the mbox class + * for cache validation the mtime of the mbox file is used + * + * @return null + * @throws Zend_Mail_Storage_Exception + */ + public function __wakeup() + { + if ($this->_filemtime != @filemtime($this->_filename)) { + $this->close(); + $this->_openMboxFile($this->_filename); + } else { + $this->_fh = @fopen($this->_filename, 'r'); + if (!$this->_fh) { + /** + * @see Zend_Mail_Storage_Exception + */ + require_once 'Zend/Mail/Storage/Exception.php'; + throw new Zend_Mail_Storage_Exception('cannot open mbox file'); + } + } + } + +} |