8398c9048d
code was modified slightly, so the code differs from the original downloadable 1.9.5 version
471 lines
13 KiB
PHP
471 lines
13 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 Protocol
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* @copyright Copyright (c) 2005-2009 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: Pop3.php 16219 2009-06-21 19:45:39Z thomas $
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*/
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/**
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* @category Zend
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* @package Zend_Mail
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* @subpackage Protocol
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* @copyright Copyright (c) 2005-2009 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_Protocol_Pop3
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{
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/**
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* Default timeout in seconds for initiating session
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*/
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const TIMEOUT_CONNECTION = 30;
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/**
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* saves if server supports top
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* @var null|bool
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*/
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public $hasTop = null;
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/**
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* socket to pop3
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* @var null|resource
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*/
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protected $_socket;
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/**
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* greeting timestamp for apop
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* @var null|string
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*/
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protected $_timestamp;
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/**
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* Public constructor
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*
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* @param string $host hostname of IP address of POP3 server, if given connect() is called
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* @param int|null $port port of POP3 server, null for default (110 or 995 for ssl)
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* @param bool|string $ssl use ssl? 'SSL', 'TLS' or false
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* @throws Zend_Mail_Protocol_Exception
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*/
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public function __construct($host = '', $port = null, $ssl = false)
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{
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if ($host) {
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$this->connect($host, $port, $ssl);
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}
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}
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/**
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* Public destructor
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*/
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public function __destruct()
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{
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$this->logout();
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}
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/**
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* Open connection to POP3 server
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*
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* @param string $host hostname of IP address of POP3 server
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* @param int|null $port of POP3 server, default is 110 (995 for ssl)
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* @param string|bool $ssl use 'SSL', 'TLS' or false
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* @return string welcome message
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* @throws Zend_Mail_Protocol_Exception
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*/
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public function connect($host, $port = null, $ssl = false)
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{
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if ($ssl == 'SSL') {
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$host = 'ssl://' . $host;
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}
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if ($port === null) {
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$port = $ssl == 'SSL' ? 995 : 110;
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}
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$errno = 0;
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$errstr = '';
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$this->_socket = @fsockopen($host, $port, $errno, $errstr, self::TIMEOUT_CONNECTION);
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if (!$this->_socket) {
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/**
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* @see Zend_Mail_Protocol_Exception
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*/
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require_once 'Zend/Mail/Protocol/Exception.php';
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throw new Zend_Mail_Protocol_Exception('cannot connect to host : ' . $errno . ' : ' . $errstr);
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}
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$welcome = $this->readResponse();
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strtok($welcome, '<');
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$this->_timestamp = strtok('>');
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if (!strpos($this->_timestamp, '@')) {
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$this->_timestamp = null;
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} else {
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$this->_timestamp = '<' . $this->_timestamp . '>';
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}
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if ($ssl === 'TLS') {
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$this->request('STLS');
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$result = stream_socket_enable_crypto($this->_socket, true, STREAM_CRYPTO_METHOD_TLS_CLIENT);
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if (!$result) {
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/**
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* @see Zend_Mail_Protocol_Exception
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*/
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require_once 'Zend/Mail/Protocol/Exception.php';
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throw new Zend_Mail_Protocol_Exception('cannot enable TLS');
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}
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}
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return $welcome;
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}
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/**
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* Send a request
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*
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* @param string $request your request without newline
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* @return null
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* @throws Zend_Mail_Protocol_Exception
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*/
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public function sendRequest($request)
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{
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$result = @fputs($this->_socket, $request . "\r\n");
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if (!$result) {
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/**
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* @see Zend_Mail_Protocol_Exception
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*/
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require_once 'Zend/Mail/Protocol/Exception.php';
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throw new Zend_Mail_Protocol_Exception('send failed - connection closed?');
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}
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}
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/**
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* read a response
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*
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* @param boolean $multiline response has multiple lines and should be read until "<nl>.<nl>"
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* @return string response
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* @throws Zend_Mail_Protocol_Exception
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*/
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public function readResponse($multiline = false)
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{
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$result = @fgets($this->_socket);
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if (!is_string($result)) {
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/**
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* @see Zend_Mail_Protocol_Exception
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*/
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require_once 'Zend/Mail/Protocol/Exception.php';
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throw new Zend_Mail_Protocol_Exception('read failed - connection closed?');
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}
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$result = trim($result);
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if (strpos($result, ' ')) {
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list($status, $message) = explode(' ', $result, 2);
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} else {
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$status = $result;
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$message = '';
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}
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if ($status != '+OK') {
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/**
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* @see Zend_Mail_Protocol_Exception
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*/
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require_once 'Zend/Mail/Protocol/Exception.php';
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throw new Zend_Mail_Protocol_Exception('last request failed');
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}
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if ($multiline) {
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$message = '';
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$line = fgets($this->_socket);
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while ($line && rtrim($line, "\r\n") != '.') {
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if ($line[0] == '.') {
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$line = substr($line, 1);
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}
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$message .= $line;
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$line = fgets($this->_socket);
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};
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}
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return $message;
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}
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/**
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* Send request and get resposne
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*
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* @see sendRequest(), readResponse()
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*
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* @param string $request request
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* @param bool $multiline multiline response?
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* @return string result from readResponse()
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* @throws Zend_Mail_Protocol_Exception
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*/
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public function request($request, $multiline = false)
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{
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$this->sendRequest($request);
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return $this->readResponse($multiline);
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}
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/**
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* End communication with POP3 server (also closes socket)
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*
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* @return null
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*/
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public function logout()
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{
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if (!$this->_socket) {
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return;
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}
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try {
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$this->request('QUIT');
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} catch (Zend_Mail_Protocol_Exception $e) {
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// ignore error - we're closing the socket anyway
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}
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fclose($this->_socket);
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$this->_socket = null;
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}
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/**
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* Get capabilities from POP3 server
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*
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* @return array list of capabilities
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* @throws Zend_Mail_Protocol_Exception
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*/
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public function capa()
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{
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$result = $this->request('CAPA', true);
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return explode("\n", $result);
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}
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/**
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* Login to POP3 server. Can use APOP
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*
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* @param string $user username
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* @param string $password password
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* @param bool $try_apop should APOP be tried?
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* @return void
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* @throws Zend_Mail_Protocol_Exception
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*/
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public function login($user, $password, $tryApop = true)
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{
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if ($tryApop && $this->_timestamp) {
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try {
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$this->request("APOP $user " . md5($this->_timestamp . $password));
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return;
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} catch (Zend_Mail_Protocol_Exception $e) {
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// ignore
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}
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}
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$result = $this->request("USER $user");
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$result = $this->request("PASS $password");
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}
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/**
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* Make STAT call for message count and size sum
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*
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* @param int $messages out parameter with count of messages
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* @param int $octets out parameter with size in octects of messages
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* @return void
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* @throws Zend_Mail_Protocol_Exception
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*/
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public function status(&$messages, &$octets)
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{
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$messages = 0;
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$octets = 0;
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$result = $this->request('STAT');
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list($messages, $octets) = explode(' ', $result);
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}
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/**
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* Make LIST call for size of message(s)
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*
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* @param int|null $msgno number of message, null for all
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* @return int|array size of given message or list with array(num => size)
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* @throws Zend_Mail_Protocol_Exception
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*/
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public function getList($msgno = null)
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{
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if ($msgno !== null) {
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$result = $this->request("LIST $msgno");
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list(, $result) = explode(' ', $result);
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return (int)$result;
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}
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$result = $this->request('LIST', true);
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$messages = array();
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$line = strtok($result, "\n");
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while ($line) {
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list($no, $size) = explode(' ', trim($line));
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$messages[(int)$no] = (int)$size;
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$line = strtok("\n");
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}
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return $messages;
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}
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/**
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* Make UIDL call for getting a uniqueid
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*
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* @param int|null $msgno number of message, null for all
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* @return string|array uniqueid of message or list with array(num => uniqueid)
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* @throws Zend_Mail_Protocol_Exception
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*/
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public function uniqueid($msgno = null)
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{
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if ($msgno !== null) {
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$result = $this->request("UIDL $msgno");
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list(, $result) = explode(' ', $result);
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return $result;
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}
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$result = $this->request('UIDL', true);
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$result = explode("\n", $result);
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$messages = array();
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foreach ($result as $line) {
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if (!$line) {
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continue;
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}
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list($no, $id) = explode(' ', trim($line), 2);
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$messages[(int)$no] = $id;
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}
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return $messages;
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}
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/**
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* Make TOP call for getting headers and maybe some body lines
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* This method also sets hasTop - before it it's not known if top is supported
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*
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* The fallback makes normale RETR call, which retrieves the whole message. Additional
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* lines are not removed.
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*
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* @param int $msgno number of message
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* @param int $lines number of wanted body lines (empty line is inserted after header lines)
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* @param bool $fallback fallback with full retrieve if top is not supported
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* @return string message headers with wanted body lines
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* @throws Zend_Mail_Protocol_Exception
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*/
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public function top($msgno, $lines = 0, $fallback = false)
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{
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if ($this->hasTop === false) {
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if ($fallback) {
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return $this->retrieve($msgno);
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} else {
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/**
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* @see Zend_Mail_Protocol_Exception
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*/
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require_once 'Zend/Mail/Protocol/Exception.php';
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throw new Zend_Mail_Protocol_Exception('top not supported and no fallback wanted');
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}
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}
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$this->hasTop = true;
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$lines = (!$lines || $lines < 1) ? 0 : (int)$lines;
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try {
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$result = $this->request("TOP $msgno $lines", true);
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} catch (Zend_Mail_Protocol_Exception $e) {
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$this->hasTop = false;
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if ($fallback) {
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$result = $this->retrieve($msgno);
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} else {
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throw $e;
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}
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}
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return $result;
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}
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/**
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* Make a RETR call for retrieving a full message with headers and body
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*
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* @deprecated since 1.1.0; this method has a typo - please use retrieve()
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* @param int $msgno message number
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* @return string message
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* @throws Zend_Mail_Protocol_Exception
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*/
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public function retrive($msgno)
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{
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return $this->retrieve($msgno);
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}
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/**
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* Make a RETR call for retrieving a full message with headers and body
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*
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* @param int $msgno message number
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* @return string message
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* @throws Zend_Mail_Protocol_Exception
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*/
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public function retrieve($msgno)
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{
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$result = $this->request("RETR $msgno", true);
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return $result;
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}
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/**
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* Make a NOOP call, maybe needed for keeping the server happy
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*
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* @return null
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* @throws Zend_Mail_Protocol_Exception
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*/
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public function noop()
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{
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$this->request('NOOP');
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}
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/**
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* Make a DELE count to remove a message
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*
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* @return null
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* @throws Zend_Mail_Protocol_Exception
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*/
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public function delete($msgno)
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{
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$this->request("DELE $msgno");
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}
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/**
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* Make RSET call, which rollbacks delete requests
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*
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* @return null
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* @throws Zend_Mail_Protocol_Exception
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*/
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public function undelete()
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{
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$this->request('RSET');
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}
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}
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