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476 lines
14 KiB
PHP
476 lines
14 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Mail
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* @subpackage Storage
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* @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: Maildir.php 24593 2012-01-05 20:35:02Z matthew $
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*/
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/**
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* @see Zend_Mail_Storage_Abstract
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*/
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require_once 'Zend/Mail/Storage/Abstract.php';
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/**
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* @see Zend_Mail_Message_File
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*/
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require_once 'Zend/Mail/Message/File.php';
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/**
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* @see Zend_Mail_Storage
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*/
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require_once 'Zend/Mail/Storage.php';
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/**
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* @category Zend
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* @package Zend_Mail
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* @subpackage Storage
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* @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Mail_Storage_Maildir extends Zend_Mail_Storage_Abstract
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{
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/**
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* used message class, change it in an extened class to extend the returned message class
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* @var string
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*/
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protected $_messageClass = 'Zend_Mail_Message_File';
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/**
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* data of found message files in maildir dir
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* @var array
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*/
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protected $_files = array();
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/**
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* known flag chars in filenames
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*
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* This list has to be in alphabetical order for setFlags()
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*
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* @var array
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*/
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protected static $_knownFlags = array('D' => Zend_Mail_Storage::FLAG_DRAFT,
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'F' => Zend_Mail_Storage::FLAG_FLAGGED,
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'P' => Zend_Mail_Storage::FLAG_PASSED,
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'R' => Zend_Mail_Storage::FLAG_ANSWERED,
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'S' => Zend_Mail_Storage::FLAG_SEEN,
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'T' => Zend_Mail_Storage::FLAG_DELETED);
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// TODO: getFlags($id) for fast access if headers are not needed (i.e. just setting flags)?
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/**
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* Count messages all messages in current box
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*
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* @return int number of messages
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* @throws Zend_Mail_Storage_Exception
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*/
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public function countMessages($flags = null)
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{
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if ($flags === null) {
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return count($this->_files);
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}
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$count = 0;
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if (!is_array($flags)) {
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foreach ($this->_files as $file) {
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if (isset($file['flaglookup'][$flags])) {
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++$count;
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}
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}
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return $count;
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}
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$flags = array_flip($flags);
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foreach ($this->_files as $file) {
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foreach ($flags as $flag => $v) {
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if (!isset($file['flaglookup'][$flag])) {
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continue 2;
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}
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}
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++$count;
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}
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return $count;
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}
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/**
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* Get one or all fields from file structure. Also checks if message is valid
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*
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* @param int $id message number
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* @param string|null $field wanted field
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* @return string|array wanted field or all fields as array
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* @throws Zend_Mail_Storage_Exception
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*/
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protected function _getFileData($id, $field = null)
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{
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if (!isset($this->_files[$id - 1])) {
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/**
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* @see Zend_Mail_Storage_Exception
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*/
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require_once 'Zend/Mail/Storage/Exception.php';
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throw new Zend_Mail_Storage_Exception('id does not exist');
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}
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if (!$field) {
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return $this->_files[$id - 1];
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}
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if (!isset($this->_files[$id - 1][$field])) {
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/**
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* @see Zend_Mail_Storage_Exception
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*/
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require_once 'Zend/Mail/Storage/Exception.php';
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throw new Zend_Mail_Storage_Exception('field does not exist');
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}
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return $this->_files[$id - 1][$field];
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}
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/**
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* Get a list of messages with number and size
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*
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* @param int|null $id number of message or null for all messages
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* @return int|array size of given message of list with all messages as array(num => size)
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* @throws Zend_Mail_Storage_Exception
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*/
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public function getSize($id = null)
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{
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if ($id !== null) {
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$filedata = $this->_getFileData($id);
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return isset($filedata['size']) ? $filedata['size'] : filesize($filedata['filename']);
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}
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$result = array();
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foreach ($this->_files as $num => $data) {
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$result[$num + 1] = isset($data['size']) ? $data['size'] : filesize($data['filename']);
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}
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return $result;
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}
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/**
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* Fetch a message
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*
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* @param int $id number of message
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* @return Zend_Mail_Message_File
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* @throws Zend_Mail_Storage_Exception
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*/
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public function getMessage($id)
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{
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// TODO that's ugly, would be better to let the message class decide
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if (strtolower($this->_messageClass) == 'zend_mail_message_file' || is_subclass_of($this->_messageClass, 'zend_mail_message_file')) {
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return new $this->_messageClass(array('file' => $this->_getFileData($id, 'filename'),
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'flags' => $this->_getFileData($id, 'flags')));
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}
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return new $this->_messageClass(array('handler' => $this, 'id' => $id, 'headers' => $this->getRawHeader($id),
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'flags' => $this->_getFileData($id, 'flags')));
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}
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/*
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* Get raw header of message or part
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*
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* @param int $id number of message
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* @param null|array|string $part path to part or null for messsage header
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* @param int $topLines include this many lines with header (after an empty line)
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* @return string raw header
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* @throws Zend_Mail_Storage_Exception
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*/
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public function getRawHeader($id, $part = null, $topLines = 0)
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{
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if ($part !== null) {
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// TODO: implement
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/**
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* @see Zend_Mail_Storage_Exception
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*/
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require_once 'Zend/Mail/Storage/Exception.php';
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throw new Zend_Mail_Storage_Exception('not implemented');
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}
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$fh = fopen($this->_getFileData($id, 'filename'), 'r');
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$content = '';
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while (!feof($fh)) {
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$line = fgets($fh);
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if (!trim($line)) {
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break;
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}
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$content .= $line;
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}
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fclose($fh);
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return $content;
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}
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/*
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* Get raw content of message or part
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*
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* @param int $id number of message
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* @param null|array|string $part path to part or null for messsage content
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* @return string raw content
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* @throws Zend_Mail_Storage_Exception
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*/
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public function getRawContent($id, $part = null)
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{
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if ($part !== null) {
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// TODO: implement
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/**
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* @see Zend_Mail_Storage_Exception
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*/
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require_once 'Zend/Mail/Storage/Exception.php';
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throw new Zend_Mail_Storage_Exception('not implemented');
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}
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$fh = fopen($this->_getFileData($id, 'filename'), 'r');
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while (!feof($fh)) {
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$line = fgets($fh);
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if (!trim($line)) {
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break;
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}
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}
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$content = stream_get_contents($fh);
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fclose($fh);
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return $content;
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}
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/**
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* Create instance with parameters
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* Supported parameters are:
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* - dirname dirname of mbox file
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*
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* @param array $params mail reader specific parameters
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* @throws Zend_Mail_Storage_Exception
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*/
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public function __construct($params)
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{
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if (is_array($params)) {
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$params = (object)$params;
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}
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if (!isset($params->dirname) || !is_dir($params->dirname)) {
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/**
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* @see Zend_Mail_Storage_Exception
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*/
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require_once 'Zend/Mail/Storage/Exception.php';
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throw new Zend_Mail_Storage_Exception('no valid dirname given in params');
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}
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if (!$this->_isMaildir($params->dirname)) {
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/**
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* @see Zend_Mail_Storage_Exception
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*/
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require_once 'Zend/Mail/Storage/Exception.php';
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throw new Zend_Mail_Storage_Exception('invalid maildir given');
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}
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$this->_has['top'] = true;
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$this->_has['flags'] = true;
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$this->_openMaildir($params->dirname);
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}
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/**
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* check if a given dir is a valid maildir
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*
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* @param string $dirname name of dir
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* @return bool dir is valid maildir
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*/
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protected function _isMaildir($dirname)
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{
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if (file_exists($dirname . '/new') && !is_dir($dirname . '/new')) {
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return false;
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}
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if (file_exists($dirname . '/tmp') && !is_dir($dirname . '/tmp')) {
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return false;
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}
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return is_dir($dirname . '/cur');
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}
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/**
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* open given dir as current maildir
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*
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* @param string $dirname name of maildir
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* @return null
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* @throws Zend_Mail_Storage_Exception
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*/
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protected function _openMaildir($dirname)
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{
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if ($this->_files) {
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$this->close();
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}
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$dh = @opendir($dirname . '/cur/');
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if (!$dh) {
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/**
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* @see Zend_Mail_Storage_Exception
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*/
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require_once 'Zend/Mail/Storage/Exception.php';
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throw new Zend_Mail_Storage_Exception('cannot open maildir');
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}
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$this->_getMaildirFiles($dh, $dirname . '/cur/');
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closedir($dh);
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$dh = @opendir($dirname . '/new/');
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if ($dh) {
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$this->_getMaildirFiles($dh, $dirname . '/new/', array(Zend_Mail_Storage::FLAG_RECENT));
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closedir($dh);
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} else if (file_exists($dirname . '/new/')) {
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/**
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* @see Zend_Mail_Storage_Exception
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*/
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require_once 'Zend/Mail/Storage/Exception.php';
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throw new Zend_Mail_Storage_Exception('cannot read recent mails in maildir');
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}
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}
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/**
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* find all files in opened dir handle and add to maildir files
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*
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* @param resource $dh dir handle used for search
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* @param string $dirname dirname of dir in $dh
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* @param array $default_flags default flags for given dir
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* @return null
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*/
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protected function _getMaildirFiles($dh, $dirname, $default_flags = array())
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{
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while (($entry = readdir($dh)) !== false) {
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if ($entry[0] == '.' || !is_file($dirname . $entry)) {
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continue;
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}
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@list($uniq, $info) = explode(':', $entry, 2);
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@list(,$size) = explode(',', $uniq, 2);
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if ($size && $size[0] == 'S' && $size[1] == '=') {
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$size = substr($size, 2);
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}
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if (!ctype_digit($size)) {
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$size = null;
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}
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@list($version, $flags) = explode(',', $info, 2);
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if ($version != 2) {
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$flags = '';
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}
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$named_flags = $default_flags;
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$length = strlen($flags);
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for ($i = 0; $i < $length; ++$i) {
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$flag = $flags[$i];
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$named_flags[$flag] = isset(self::$_knownFlags[$flag]) ? self::$_knownFlags[$flag] : $flag;
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}
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$data = array('uniq' => $uniq,
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'flags' => $named_flags,
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'flaglookup' => array_flip($named_flags),
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'filename' => $dirname . $entry);
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if ($size !== null) {
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$data['size'] = (int)$size;
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}
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$this->_files[] = $data;
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}
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}
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/**
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* Close resource for mail lib. If you need to control, when the resource
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* is closed. Otherwise the destructor would call this.
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*
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* @return void
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*/
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public function close()
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{
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$this->_files = array();
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}
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/**
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* Waste some CPU cycles doing nothing.
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*
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* @return void
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*/
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public function noop()
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{
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return true;
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}
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/**
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* stub for not supported message deletion
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*
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* @return null
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* @throws Zend_Mail_Storage_Exception
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*/
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public function removeMessage($id)
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{
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/**
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* @see Zend_Mail_Storage_Exception
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*/
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require_once 'Zend/Mail/Storage/Exception.php';
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throw new Zend_Mail_Storage_Exception('maildir is (currently) read-only');
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}
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/**
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* get unique id for one or all messages
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*
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* if storage does not support unique ids it's the same as the message number
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*
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* @param int|null $id message number
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* @return array|string message number for given message or all messages as array
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* @throws Zend_Mail_Storage_Exception
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*/
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public function getUniqueId($id = null)
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{
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if ($id) {
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return $this->_getFileData($id, 'uniq');
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}
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$ids = array();
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foreach ($this->_files as $num => $file) {
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$ids[$num + 1] = $file['uniq'];
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}
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return $ids;
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}
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/**
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* get a message number from a unique id
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*
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* I.e. if you have a webmailer that supports deleting messages you should use unique ids
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* as parameter and use this method to translate it to message number right before calling removeMessage()
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*
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* @param string $id unique id
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* @return int message number
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* @throws Zend_Mail_Storage_Exception
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*/
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public function getNumberByUniqueId($id)
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{
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foreach ($this->_files as $num => $file) {
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if ($file['uniq'] == $id) {
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return $num + 1;
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}
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}
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/**
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* @see Zend_Mail_Storage_Exception
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*/
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require_once 'Zend/Mail/Storage/Exception.php';
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throw new Zend_Mail_Storage_Exception('unique id not found');
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}
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}
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