1227 lines
33 KiB
PHP
1227 lines
33 KiB
PHP
<?php
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// +-----------------------------------------------------------------------+
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// | Copyright (c) 2002, Richard Heyes |
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// | All rights reserved. |
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// | |
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// | Redistribution and use in source and binary forms, with or without |
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// | modification, are permitted provided that the following conditions |
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// | are met: |
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// | |
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// | o Redistributions of source code must retain the above copyright |
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// | notice, this list of conditions and the following disclaimer. |
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// | o Redistributions in binary form must reproduce the above copyright |
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// | notice, this list of conditions and the following disclaimer in the |
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// | documentation and/or other materials provided with the distribution.|
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// | o The names of the authors may not be used to endorse or promote |
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// | products derived from this software without specific prior written |
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// | permission. |
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// | |
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// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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// | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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// | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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// | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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// | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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// | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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// | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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// | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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// | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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// | |
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// +-----------------------------------------------------------------------+
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// | Author: Richard Heyes <richard@phpguru.org> |
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// | Co-Author: Damian Fernandez Sosa <damlists@cnba.uba.ar> |
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// +-----------------------------------------------------------------------+
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//
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// $Id: POP3.php,v 1.2 2004/12/05 16:34:39 damian Exp $
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require_once('Net/Socket.php');
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/**
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* +----------------------------- IMPORTANT ------------------------------+
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* | Usage of this class compared to native php extensions such as IMAP |
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* | is slow and may be feature deficient. If available you are STRONGLY |
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* | recommended to use the php extensions. |
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* +----------------------------------------------------------------------+
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*
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* POP3 Access Class
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*
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* For usage see the example script
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*/
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define('NET_POP3_STATE_DISCONNECTED', 1, true);
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define('NET_POP3_STATE_AUTHORISATION', 2, true);
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define('NET_POP3_STATE_TRANSACTION', 4, true);
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class Net_POP3 {
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/*
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* Some basic information about the mail drop
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* garnered from the STAT command
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*
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* @var array
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*/
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var $_maildrop;
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/*
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* Used for APOP to store the timestamp
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*
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* @var string
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*/
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var $_timestamp;
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/*
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* Timeout that is passed to the socket object
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*
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* @var integer
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*/
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var $_timeout;
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/*
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* Socket object
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*
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* @var object
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*/
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var $_socket;
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/*
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* Current state of the connection. Used with the
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* constants defined above.
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*
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* @var integer
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*/
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var $_state;
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/*
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* Hostname to connect to
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*
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* @var string
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*/
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var $_host;
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/*
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* Port to connect to
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*
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* @var integer
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*/
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var $_port;
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/**
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* To allow class debuging
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* @var boolean
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*/
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var $_debug = false;
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/**
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* The auth methods this class support
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* @var array
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*/
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//var $supportedAuthMethods=array('DIGEST-MD5', 'CRAM-MD5', 'APOP' , 'PLAIN' , 'LOGIN', 'USER');
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//Disabling DIGEST-MD5 for now
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var $supportedAuthMethods=array( 'CRAM-MD5', 'APOP' , 'PLAIN' , 'LOGIN', 'USER');
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//var $supportedAuthMethods=array( 'CRAM-MD5', 'PLAIN' , 'LOGIN');
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//var $supportedAuthMethods=array( 'PLAIN' , 'LOGIN');
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/**
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* The auth methods this class support
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* @var array
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*/
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var $supportedSASLAuthMethods=array('DIGEST-MD5', 'CRAM-MD5');
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/**
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* The capability response
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* @var array
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*/
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var $_capability;
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/*
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* Constructor. Sets up the object variables, and instantiates
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* the socket object.
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*
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*/
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function __construct()
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{
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$this->_timestamp = ''; // Used for APOP
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$this->_maildrop = array();
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$this->_timeout = 3;
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$this->_state = NET_POP3_STATE_DISCONNECTED;
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$this->_socket = new Net_Socket();
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/*
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* Include the Auth_SASL package. If the package is not available,
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* we disable the authentication methods that depend upon it.
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*/
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if ((@include_once 'Auth/SASL.php') == false) {
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if($this->_debug){
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echo "AUTH_SASL NOT PRESENT!\n";
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}
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foreach($this->supportedSASLAuthMethods as $SASLMethod){
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$pos = array_search( $SASLMethod, $this->supportedAuthMethods );
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if($this->_debug){
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echo "DISABLING METHOD $SASLMethod\n";
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}
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unset($this->supportedAuthMethods[$pos]);
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}
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}
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}
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/**
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* Handles the errors the class can find
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* on the server
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*
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* @access private
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* @return PEAR_Error
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*/
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function _raiseError($msg, $code =-1)
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{
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include_once 'PEAR.php';
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return PEAR::raiseError($msg, $code);
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}
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/*
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* Connects to the given host on the given port.
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* Also looks for the timestamp in the greeting
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* needed for APOP authentication
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*
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* @param string $host Hostname/IP address to connect to
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* @param string $port Port to use to connect to on host
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* @return bool Success/Failure
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*/
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function connect($host = 'localhost', $port = 110)
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{
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$this->_host = $host;
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$this->_port = $port;
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$result = $this->_socket->connect($host, $port, false, $this->_timeout);
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if ($result === true) {
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$data = $this->_recvLn();
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if( $this->_checkResponse($data) ){
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// if the response begins with '+OK' ...
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// if (@substr(strtoupper($data), 0, 3) == '+OK') {
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// Check for string matching apop timestamp
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if (preg_match('/<.+@.+>/U', $data, $matches)) {
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$this->_timestamp = $matches[0];
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}
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$this->_maildrop = array();
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$this->_state = NET_POP3_STATE_AUTHORISATION;
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return true;
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}
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}
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$this->_socket->disconnect();
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return false;
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}
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/*
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* Disconnect function. Sends the QUIT command
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* and closes the socket.
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*
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* @return bool Success/Failure
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*/
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function disconnect()
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{
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return $this->_cmdQuit();
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}
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/*
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* Performs the login procedure. If there is a timestamp
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* stored, APOP will be tried first, then basic USER/PASS.
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*
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* @param string $user Username to use
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* @param string $pass Password to use
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* @param mixed $apop Whether to try APOP first, if used as string you can select the auth methd to use ( $pop3->login('validlogin', 'validpass', "CRAM-MD5");
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* Valid methods are: 'DIGEST-MD5','CRAM-MD5','LOGIN','PLAIN','APOP','USER'
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* @return mixed true on Success/ PEAR_ERROR on error
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*/
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function login($user, $pass, $apop = true)
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{
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if ($this->_state == NET_POP3_STATE_AUTHORISATION) {
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if(PEAR::isError($ret= $this->_cmdAuthenticate($user , $pass , $apop ) ) ){
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return $ret;
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}
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if( ! PEAR::isError($ret)){
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$this->_state = NET_POP3_STATE_TRANSACTION;
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return true;
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}
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}
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return $this->_raiseError('Generic login error' , 1);
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}
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/**
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* Parses the response from the capability command. Stores
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* the result in $this->_capability
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*
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* @access private
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*/
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function _parseCapability()
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{
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if(!PEAR::isError($data = $this->_sendCmd('CAPA'))){
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$data = $this->_getMultiline();
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}else {
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// CAPA command not supported, reset data var
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// to avoid Notice errors of preg_split on an object
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$data = '';
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}
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$data = preg_split('/\r?\n/', $data, -1, PREG_SPLIT_NO_EMPTY);
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for ($i = 0; $i < count($data); $i++) {
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$capa='';
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if (preg_match('/^([a-z,\-]+)( ((.*))|$)$/i', $data[$i], $matches)) {
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$capa=strtolower($matches[1]);
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switch ($capa) {
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case 'implementation':
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$this->_capability['implementation'] = $matches[3];
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break;
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case 'sasl':
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$this->_capability['sasl'] = preg_split('/\s+/', $matches[3]);
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break;
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default :
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$this->_capability[$capa] = $matches[2];
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break;
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}
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}
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}
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}
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/**
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* Returns the name of the best authentication method that the server
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* has advertised.
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*
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* @param string if !=null,authenticate with this method ($userMethod).
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*
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* @return mixed Returns a string containing the name of the best
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* supported authentication method or a PEAR_Error object
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* if a failure condition is encountered.
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* @access private
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* @since 1.0
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*/
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function _getBestAuthMethod($userMethod = null)
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{
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/*
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return 'USER';
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return 'APOP';
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return 'DIGEST-MD5';
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return 'CRAM-MD5';
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*/
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$this->_parseCapability();
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//unset($this->_capability['sasl']);
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if( isset($this->_capability['sasl']) ){
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$serverMethods=$this->_capability['sasl'];
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}else{
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$serverMethods=array('USER');
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// Check for timestamp before attempting APOP
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if ($this->_timestamp != null)
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{
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$serverMethods[] = 'APOP';
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}
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}
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if($userMethod !== null && $userMethod !== true ){
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$methods = array();
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$methods[] = $userMethod;
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return $userMethod;
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}else{
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$methods = $this->supportedAuthMethods;
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}
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if( ($methods != null) && ($serverMethods != null)){
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foreach ( $methods as $method ) {
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if ( in_array( $method , $serverMethods ) ) {
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return $method;
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}
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}
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$serverMethods=implode(',' , $serverMethods );
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$myMethods=implode(',' ,$this->supportedAuthMethods);
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return $this->_raiseError("$method NOT supported authentication method!. This server " .
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"supports these methods: $serverMethods, but I support $myMethods");
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}else{
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return $this->_raiseError("This server don't support any Auth methods");
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}
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}
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/* Handles the authentication using any known method
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*
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* @param string The userid to authenticate as.
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* @param string The password to authenticate with.
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* @param string The method to use ( if $usermethod == '' then the class chooses the best method (the stronger is the best ) )
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*
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* @return mixed string or PEAR_Error
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*
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* @access private
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* @since 1.0
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*/
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function _cmdAuthenticate($uid , $pwd , $userMethod = null )
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{
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if ( PEAR::isError( $method = $this->_getBestAuthMethod($userMethod) ) ) {
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return $method;
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}
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switch ($method) {
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case 'DIGEST-MD5':
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$result = $this->_authDigest_MD5( $uid , $pwd );
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break;
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case 'CRAM-MD5':
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$result = $this->_authCRAM_MD5( $uid , $pwd );
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break;
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case 'LOGIN':
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$result = $this->_authLOGIN( $uid , $pwd );
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break;
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case 'PLAIN':
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$result = $this->_authPLAIN( $uid , $pwd );
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break;
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case 'APOP':
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$result = $this->_cmdApop( $uid , $pwd );
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// if APOP fails fallback to USER auth
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if( PEAR::isError( $result ) ){
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//echo "APOP FAILED!!!\n";
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$result=$this->_authUSER( $uid , $pwd );
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}
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break;
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case 'USER':
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$result = $this->_authUSER( $uid , $pwd );
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break;
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default :
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$result = $this->_raiseError( "$method is not a supported authentication method" );
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break;
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}
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return $result;
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}
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/* Authenticates the user using the USER-PASS method.
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*
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* @param string The userid to authenticate as.
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* @param string The password to authenticate with.
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*
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* @return mixed true on success or PEAR_Error on failure
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*
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* @access private
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* @since 1.0
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*/
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function _authUSER($user, $pass )
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{
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if ( PEAR::isError($ret=$this->_cmdUser($user) ) ){
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return $ret;
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}
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if ( PEAR::isError($ret=$this->_cmdPass($pass) ) ){
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return $ret;
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}
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return true;
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}
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/* Authenticates the user using the PLAIN method.
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*
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* @param string The userid to authenticate as.
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* @param string The password to authenticate with.
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*
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* @return array Returns an array containing the response
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*
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* @access private
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* @since 1.0
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*/
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function _authPLAIN($user, $pass )
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{
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$cmd=sprintf('AUTH PLAIN %s', base64_encode( chr(0) . $user . chr(0) . $pass ) );
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if ( PEAR::isError( $ret = $this->_send($cmd) ) ) {
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return $ret;
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}
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if ( PEAR::isError( $challenge = $this->_recvLn() ) ){
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return $challenge;
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}
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if( PEAR::isError($ret=$this->_checkResponse($challenge) )){
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return $ret;
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}
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return true;
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}
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/* Authenticates the user using the PLAIN method.
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*
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* @param string The userid to authenticate as.
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* @param string The password to authenticate with.
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*
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* @return array Returns an array containing the response
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*
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* @access private
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* @since 1.0
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*/
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function _authLOGIN($user, $pass )
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{
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$this->_send('AUTH LOGIN');
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if ( PEAR::isError( $challenge = $this->_recvLn() ) ) {
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return $challenge;
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}
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if( PEAR::isError($ret=$this->_checkResponse($challenge) )){
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return $ret;
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}
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if ( PEAR::isError( $ret = $this->_send(sprintf('%s', base64_encode($user))) ) ) {
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return $ret;
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}
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if ( PEAR::isError( $challenge = $this->_recvLn() ) ) {
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return $challenge;
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}
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if( PEAR::isError($ret=$this->_checkResponse($challenge) )){
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return $ret;
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}
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if ( PEAR::isError( $ret = $this->_send(sprintf('%s', base64_encode($pass))) ) ) {
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return $ret;
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}
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if ( PEAR::isError( $challenge = $this->_recvLn() ) ) {
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return $challenge;
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}
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return $this->_checkResponse($challenge);
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}
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/* Authenticates the user using the CRAM-MD5 method.
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*
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* @param string The userid to authenticate as.
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* @param string The password to authenticate with.
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*
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* @return array Returns an array containing the response
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*
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* @access private
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* @since 1.0
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*/
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function _authCRAM_MD5($uid, $pwd )
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{
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if ( PEAR::isError( $ret = $this->_send( 'AUTH CRAM-MD5' ) ) ) {
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return $ret;
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}
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if ( PEAR::isError( $challenge = $this->_recvLn() ) ) {
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return $challenge;
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}
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if( PEAR::isError($ret=$this->_checkResponse($challenge) )){
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return $ret;
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}
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// remove '+ '
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$challenge=substr($challenge,2);
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$challenge = base64_decode( $challenge );
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$cram = &Auth_SASL::factory('crammd5');
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$auth_str = base64_encode( $cram->getResponse( $uid , $pwd , $challenge ) );
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if ( PEAR::isError($error = $this->_send( $auth_str ) ) ) {
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return $error;
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}
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if ( PEAR::isError( $ret = $this->_recvLn() ) ) {
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return $ret;
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}
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//echo "RET:$ret\n";
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return $this->_checkResponse($ret);
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}
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|
|
/* Authenticates the user using the DIGEST-MD5 method.
|
|
*
|
|
* @param string The userid to authenticate as.
|
|
* @param string The password to authenticate with.
|
|
* @param string The efective user
|
|
*
|
|
* @return array Returns an array containing the response
|
|
*
|
|
* @access private
|
|
* @since 1.0
|
|
*/
|
|
function _authDigest_MD5($uid, $pwd)
|
|
{
|
|
if ( PEAR::isError( $ret = $this->_send( 'AUTH DIGEST-MD5' ) ) ) {
|
|
return $ret;
|
|
}
|
|
|
|
if ( PEAR::isError( $challenge = $this->_recvLn() ) ) {
|
|
return $challenge;
|
|
}
|
|
if( PEAR::isError($ret=$this->_checkResponse($challenge) )){
|
|
return $ret;
|
|
}
|
|
|
|
// remove '+ '
|
|
$challenge=substr($challenge,2);
|
|
|
|
$challenge = base64_decode( $challenge );
|
|
$digest = &Auth_SASL::factory('digestmd5');
|
|
$auth_str = base64_encode($digest->getResponse($uid, $pwd, $challenge, "localhost", "pop3" ));
|
|
|
|
if ( PEAR::isError($error = $this->_send( $auth_str ) ) ) {
|
|
return $error;
|
|
}
|
|
|
|
if ( PEAR::isError( $challenge = $this->_recvLn() ) ) {
|
|
return $challenge;
|
|
}
|
|
if( PEAR::isError($ret=$this->_checkResponse($challenge) )){
|
|
return $ret;
|
|
}
|
|
/*
|
|
* We don't use the protocol's third step because POP3 doesn't allow
|
|
* subsequent authentication, so we just silently ignore it.
|
|
*/
|
|
|
|
if ( PEAR::isError( $challenge = $this->_send("\r\n") ) ) {
|
|
return $challenge ;
|
|
}
|
|
|
|
if ( PEAR::isError( $challenge = $this->_recvLn() ) ) {
|
|
return $challenge;
|
|
}
|
|
|
|
return $this->_checkResponse($challenge);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
* Sends the APOP command
|
|
*
|
|
* @param $user Username to send
|
|
* @param $pass Password to send
|
|
* @return bool Success/Failure
|
|
*/
|
|
function _cmdApop($user, $pass)
|
|
{
|
|
if ($this->_state == NET_POP3_STATE_AUTHORISATION) {
|
|
|
|
if (!empty($this->_timestamp)) {
|
|
if(PEAR::isError($data = $this->_sendCmd('APOP ' . $user . ' ' . md5($this->_timestamp . $pass)) ) ){
|
|
return $data;
|
|
}
|
|
$this->_state = NET_POP3_STATE_TRANSACTION;
|
|
return true;
|
|
}
|
|
}
|
|
return $this->_raiseError('Not In NET_POP3_STATE_AUTHORISATION State1');
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
* Returns the raw headers of the specified message.
|
|
*
|
|
* @param integer $msg_id Message number
|
|
* @return mixed Either raw headers or false on error
|
|
*/
|
|
function getRawHeaders($msg_id)
|
|
{
|
|
if ($this->_state == NET_POP3_STATE_TRANSACTION) {
|
|
return $this->_cmdTop($msg_id, 0);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Returns the headers of the specified message in an
|
|
* associative array. Array keys are the header names, array
|
|
* values are the header values. In the case of multiple headers
|
|
* having the same names, eg Received:, the array value will be
|
|
* an indexed array of all the header values.
|
|
*
|
|
* @param integer $msg_id Message number
|
|
* @return mixed Either array of headers or false on error
|
|
*/
|
|
function getParsedHeaders($msg_id)
|
|
{
|
|
if ($this->_state == NET_POP3_STATE_TRANSACTION) {
|
|
|
|
$raw_headers = rtrim($this->getRawHeaders($msg_id));
|
|
|
|
$raw_headers = preg_replace("/\r\n[ \t]+/", ' ', $raw_headers); // Unfold headers
|
|
$raw_headers = explode("\r\n", $raw_headers);
|
|
foreach ($raw_headers as $value) {
|
|
$name = substr($value, 0, $pos = strpos($value, ':'));
|
|
$value = ltrim(substr($value, $pos + 1));
|
|
if (isset($headers[$name]) AND is_array($headers[$name])) {
|
|
$headers[$name][] = $value;
|
|
} elseif (isset($headers[$name])) {
|
|
$headers[$name] = array($headers[$name], $value);
|
|
} else {
|
|
$headers[$name] = $value;
|
|
}
|
|
}
|
|
|
|
return $headers;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Returns the body of the message with given message number.
|
|
*
|
|
* @param integer $msg_id Message number
|
|
* @return mixed Either message body or false on error
|
|
*/
|
|
function getBody($msg_id)
|
|
{
|
|
if ($this->_state == NET_POP3_STATE_TRANSACTION) {
|
|
$msg = $this->_cmdRetr($msg_id);
|
|
return substr($msg, strpos($msg, "\r\n\r\n")+4);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Returns the entire message with given message number.
|
|
*
|
|
* @param integer $msg_id Message number
|
|
* @return mixed Either entire message or false on error
|
|
*/
|
|
function getMsg($msg_id)
|
|
{
|
|
if ($this->_state == NET_POP3_STATE_TRANSACTION) {
|
|
return $this->_cmdRetr($msg_id);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Returns the size of the maildrop
|
|
*
|
|
* @return mixed Either size of maildrop or false on error
|
|
*/
|
|
function getSize()
|
|
{
|
|
if ($this->_state == NET_POP3_STATE_TRANSACTION) {
|
|
if (isset($this->_maildrop['size'])) {
|
|
return $this->_maildrop['size'];
|
|
} else {
|
|
list(, $size) = $this->_cmdStat();
|
|
return $size;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Returns number of messages in this maildrop
|
|
*
|
|
* @return mixed Either number of messages or false on error
|
|
*/
|
|
function numMsg()
|
|
{
|
|
if ($this->_state == NET_POP3_STATE_TRANSACTION) {
|
|
if (isset($this->_maildrop['num_msg'])) {
|
|
return $this->_maildrop['num_msg'];
|
|
} else {
|
|
list($num_msg, ) = $this->_cmdStat();
|
|
return $num_msg;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Marks a message for deletion. Only will be deleted if the
|
|
* disconnect() method is called.
|
|
*
|
|
* @param integer $msg_id Message to delete
|
|
* @return bool Success/Failure
|
|
*/
|
|
function deleteMsg($msg_id)
|
|
{
|
|
if ($this->_state == NET_POP3_STATE_TRANSACTION) {
|
|
return $this->_cmdDele($msg_id);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Combination of LIST/UIDL commands, returns an array
|
|
* of data
|
|
*
|
|
* @param integer $msg_id Optional message number
|
|
* @return mixed Array of data or false on error
|
|
*/
|
|
function getListing($msg_id = null)
|
|
{
|
|
|
|
if ($this->_state == NET_POP3_STATE_TRANSACTION) {
|
|
if (!isset($msg_id)){
|
|
|
|
$list=array();
|
|
if ($list = $this->_cmdList()) {
|
|
if ($uidl = $this->_cmdUidl()) {
|
|
foreach ($uidl as $i => $value) {
|
|
$list[$i]['uidl'] = $value['uidl'];
|
|
}
|
|
}
|
|
return $list;
|
|
}else{
|
|
return array();
|
|
}
|
|
} else {
|
|
if ($list = $this->_cmdList($msg_id) AND $uidl = $this->_cmdUidl($msg_id)) {
|
|
return array_merge($list, $uidl);
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Sends the USER command
|
|
*
|
|
* @param string $user Username to send
|
|
* @return bool Success/Failure
|
|
*/
|
|
function _cmdUser($user)
|
|
{
|
|
if ($this->_state == NET_POP3_STATE_AUTHORISATION) {
|
|
return $this->_sendCmd('USER ' . $user);
|
|
}
|
|
return $this->_raiseError('Not In NET_POP3_STATE_AUTHORISATION State');
|
|
}
|
|
|
|
|
|
/*
|
|
* Sends the PASS command
|
|
*
|
|
* @param string $pass Password to send
|
|
* @return bool Success/Failure
|
|
*/
|
|
function _cmdPass($pass)
|
|
{
|
|
if ($this->_state == NET_POP3_STATE_AUTHORISATION) {
|
|
return $this->_sendCmd('PASS ' . $pass);
|
|
}
|
|
return $this->_raiseError('Not In NET_POP3_STATE_AUTHORISATION State');
|
|
}
|
|
|
|
|
|
/*
|
|
* Sends the STAT command
|
|
*
|
|
* @return mixed Indexed array of number of messages and
|
|
* maildrop size, or false on error.
|
|
*/
|
|
function _cmdStat()
|
|
{
|
|
if ($this->_state == NET_POP3_STATE_TRANSACTION) {
|
|
if(!PEAR::isError($data = $this->_sendCmd('STAT'))){
|
|
sscanf($data, '+OK %d %d', $msg_num, $size);
|
|
$this->_maildrop['num_msg'] = $msg_num;
|
|
$this->_maildrop['size'] = $size;
|
|
|
|
return array($msg_num, $size);
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
/*
|
|
* Sends the LIST command
|
|
*
|
|
* @param integer $msg_id Optional message number
|
|
* @return mixed Indexed array of msg_id/msg size or
|
|
* false on error
|
|
*/
|
|
function _cmdList($msg_id = null)
|
|
{
|
|
$return=array();
|
|
if ($this->_state == NET_POP3_STATE_TRANSACTION) {
|
|
if (!isset($msg_id)) {
|
|
if(!PEAR::isError($data = $this->_sendCmd('LIST') )){
|
|
$data = $this->_getMultiline();
|
|
$data = explode("\r\n", $data);
|
|
foreach ($data as $line) {
|
|
if($line !=''){
|
|
sscanf($line, '%s %s', $msg_id, $size);
|
|
$return[] = array('msg_id' => $msg_id, 'size' => $size);
|
|
}
|
|
}
|
|
return $return;
|
|
}
|
|
} else {
|
|
if(!PEAR::isError($data = $this->_sendCmd('LIST ' . $msg_id))){
|
|
if($data!=''){
|
|
sscanf($data, '+OK %d %d', $msg_id, $size);
|
|
return array('msg_id' => $msg_id, 'size' => $size);
|
|
}
|
|
return array();
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
/*
|
|
* Sends the RETR command
|
|
*
|
|
* @param integer $msg_id The message number to retrieve
|
|
* @return mixed The message or false on error
|
|
*/
|
|
function _cmdRetr($msg_id)
|
|
{
|
|
if ($this->_state == NET_POP3_STATE_TRANSACTION) {
|
|
if(!PEAR::isError($data = $this->_sendCmd('RETR ' . $msg_id) )){
|
|
$data = $this->_getMultiline();
|
|
return $data;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
/*
|
|
* Sends the DELE command
|
|
*
|
|
* @param integer $msg_id Message number to mark as deleted
|
|
* @return bool Success/Failure
|
|
*/
|
|
function _cmdDele($msg_id)
|
|
{
|
|
if ($this->_state == NET_POP3_STATE_TRANSACTION) {
|
|
return $this->_sendCmd('DELE ' . $msg_id);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
/*
|
|
* Sends the NOOP command
|
|
*
|
|
* @return bool Success/Failure
|
|
*/
|
|
function _cmdNoop()
|
|
{
|
|
if ($this->_state == NET_POP3_STATE_TRANSACTION) {
|
|
if(!PEAR::isError($data = $this->_sendCmd('NOOP'))){
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Sends the RSET command
|
|
*
|
|
* @return bool Success/Failure
|
|
*/
|
|
function _cmdRset()
|
|
{
|
|
if ($this->_state == NET_POP3_STATE_TRANSACTION) {
|
|
if(!PEAR::isError($data = $this->_sendCmd('RSET'))){
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Sends the QUIT command
|
|
*
|
|
* @return bool Success/Failure
|
|
*/
|
|
function _cmdQuit()
|
|
{
|
|
$data = $this->_sendCmd('QUIT');
|
|
$this->_state = NET_POP3_STATE_DISCONNECTED;
|
|
$this->_socket->disconnect();
|
|
|
|
return (bool)$data;
|
|
}
|
|
|
|
|
|
/*
|
|
* Sends the TOP command
|
|
*
|
|
* @param integer $msg_id Message number
|
|
* @param integer $num_lines Number of lines to retrieve
|
|
* @return mixed Message data or false on error
|
|
*/
|
|
function _cmdTop($msg_id, $num_lines)
|
|
{
|
|
if ($this->_state == NET_POP3_STATE_TRANSACTION) {
|
|
|
|
if(!PEAR::isError($data = $this->_sendCmd('TOP ' . $msg_id . ' ' . $num_lines))){
|
|
return $this->_getMultiline();
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Sends the UIDL command
|
|
*
|
|
* @param integer $msg_id Message number
|
|
* @return mixed indexed array of msg_id/uidl or false on error
|
|
*/
|
|
function _cmdUidl($msg_id = null)
|
|
{
|
|
if ($this->_state == NET_POP3_STATE_TRANSACTION) {
|
|
|
|
if (!isset($msg_id)) {
|
|
if(!PEAR::isError($data = $this->_sendCmd('UIDL') )){
|
|
$data = $this->_getMultiline();
|
|
$data = explode("\r\n", $data);
|
|
foreach ($data as $line) {
|
|
sscanf($line, '%d %s', $msg_id, $uidl);
|
|
$return[] = array('msg_id' => $msg_id, 'uidl' => $uidl);
|
|
}
|
|
|
|
return $return;
|
|
}
|
|
} else {
|
|
|
|
$data = $this->_sendCmd('UIDL ' . $msg_id);
|
|
sscanf($data, '+OK %d %s', $msg_id, $uidl);
|
|
return array('msg_id' => $msg_id, 'uidl' => $uidl);
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
* Sends a command, checks the reponse, and
|
|
* if good returns the reponse, other wise
|
|
* returns false.
|
|
*
|
|
* @param string $cmd Command to send (\r\n will be appended)
|
|
* @return mixed First line of response if successful, otherwise false
|
|
*/
|
|
function _sendCmd($cmd)
|
|
{
|
|
if (PEAR::isError($result = $this->_send($cmd) )){
|
|
return $result ;
|
|
}
|
|
|
|
if (PEAR::isError($data = $this->_recvLn() )){
|
|
return $data;
|
|
}
|
|
|
|
if ( strtoupper(substr($data, 0, 3)) == '+OK') {
|
|
return $data;
|
|
}
|
|
|
|
|
|
return $this->_raiseError($data);
|
|
}
|
|
|
|
/*
|
|
* Reads a multiline reponse and returns the data
|
|
*
|
|
* @return string The reponse.
|
|
*/
|
|
function _getMultiline()
|
|
{
|
|
$data = '';
|
|
while(!PEAR::isError($tmp = $this->_recvLn() ) ) {
|
|
if($tmp == '.'){
|
|
return substr($data, 0, -2);
|
|
}
|
|
if (substr($tmp, 0, 2) == '..') {
|
|
$tmp = substr($tmp, 1);
|
|
}
|
|
$data .= $tmp . "\r\n";
|
|
}
|
|
return substr($data, 0, -2);
|
|
}
|
|
|
|
|
|
/**
|
|
* Sets the bebug state
|
|
*
|
|
* @param bool $debug
|
|
* @access public
|
|
* @return void
|
|
*/
|
|
function setDebug($debug=true)
|
|
{
|
|
$this->_debug=$debug;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
* Send the given string of data to the server.
|
|
*
|
|
* @param string $data The string of data to send.
|
|
*
|
|
* @return mixed True on success or a PEAR_Error object on failure.
|
|
*
|
|
* @access private
|
|
* @since 1.0
|
|
*/
|
|
function _send($data)
|
|
{
|
|
if ($this->_debug) {
|
|
echo "C: $data\n";
|
|
}
|
|
|
|
if (PEAR::isError($error = $this->_socket->writeLine($data))) {
|
|
return $this->_raiseError('Failed to write to socket: ' . $error->getMessage());
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Receive the given string of data from the server.
|
|
*
|
|
* @return mixed a line of response on success or a PEAR_Error object on failure.
|
|
*
|
|
* @access private
|
|
* @since 1.0
|
|
*/
|
|
function _recvLn()
|
|
{
|
|
if (PEAR::isError( $lastline = $this->_socket->readLine( 8192 ) ) ) {
|
|
return $this->_raiseError('Failed to write to socket: ' . $this->lastline->getMessage() );
|
|
}
|
|
if($this->_debug){
|
|
// S: means this data was sent by the POP3 Server
|
|
echo "S:$lastline\n" ;
|
|
}
|
|
return $lastline;
|
|
}
|
|
|
|
/**
|
|
* Checks de server Response
|
|
*
|
|
* @param string $response the response
|
|
* @return mixed true on success or a PEAR_Error object on failure.
|
|
*
|
|
* @access private
|
|
* @since 1.3.3
|
|
*/
|
|
|
|
function _checkResponse($response)
|
|
{
|
|
if (@substr(strtoupper($response), 0, 3) == '+OK') {
|
|
return true;
|
|
}else{
|
|
if (@substr(strtoupper($response), 0, 4) == '-ERR') {
|
|
return $this->_raiseError($response);
|
|
}else{
|
|
if (@substr(strtoupper($response), 0, 2) == '+ ') {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
}
|
|
return $this->_raiseError("Unknown Response ($response)");
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
?>
|