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class.pop3.php
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<?php
/*~ class.pop3.php
.---------------------------------------------------------------------------.
| Software: PHPMailer - PHP email class |
| Version: 5.1 |
| Contact: via sourceforge.net support pages (also www.codeworxtech.com) |
| Info: http://phpmailer.sourceforge.net |
| Support: http://sourceforge.net/projects/phpmailer/ |
| ------------------------------------------------------------------------- |
| Admin: Andy Prevost (project admininistrator) |
| Authors: Andy Prevost (codeworxtech) codeworxtech@users.sourceforge.net |
| : Marcus Bointon (coolbru) coolbru@users.sourceforge.net |
| Founder: Brent R. Matzelle (original founder) |
| Copyright (c) 2004-2009, Andy Prevost. All Rights Reserved. |
| Copyright (c) 2001-2003, Brent R. Matzelle |
| ------------------------------------------------------------------------- |
| License: Distributed under the Lesser General Public License (LGPL) |
| http://www.gnu.org/copyleft/lesser.html |
| This program is distributed in the hope that it will be useful - WITHOUT |
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| FITNESS FOR A PARTICULAR PURPOSE. |
| ------------------------------------------------------------------------- |
| We offer a number of paid services (www.codeworxtech.com): |
| - Web Hosting on highly optimized fast and secure servers |
| - Technology Consulting |
| - Oursourcing (highly qualified programmers and graphic designers) |
'---------------------------------------------------------------------------'
*/
/**
* PHPMailer - PHP POP Before SMTP Authentication Class
* NOTE: Designed for use with PHP version 5 and up
* @package PHPMailer
* @author Andy Prevost
* @author Marcus Bointon
* @copyright 2004 - 2009 Andy Prevost
* @license http://www.gnu.org/copyleft/lesser.html Distributed under the Lesser General Public License (LGPL)
* @version $Id: class.pop3.php 444 2009-05-05 11:22:26Z coolbru $
*/
/**
* POP Before SMTP Authentication Class
* Version 5.0.0
*
* Author: Richard Davey (rich@corephp.co.uk)
* Modifications: Andy Prevost
* License: LGPL, see PHPMailer License
*
* Specifically for PHPMailer to allow POP before SMTP authentication.
* Does not yet work with APOP - if you have an APOP account, contact Richard Davey
* and we can test changes to this script.
*
* This class is based on the structure of the SMTP class originally authored by Chris Ryan
*
* This class is rfc 1939 compliant and implements all the commands
* required for POP3 connection, authentication and disconnection.
*
* @package PHPMailer
* @author Richard Davey
*/
class POP3 {
/**
* Default POP3 port
* @var int
*/
public $POP3_PORT = 110;
/**
* Default Timeout
* @var int
*/
public $POP3_TIMEOUT = 30;
/**
* POP3 Carriage Return + Line Feed
* @var string
*/
public $CRLF = "\r\n";
/**
* Displaying Debug warnings? (0 = now, 1+ = yes)
* @var int
*/
public $do_debug = 2;
/**
* POP3 Mail Server
* @var string
*/
public $host;
/**
* POP3 Port
* @var int
*/
public $port;
/**
* POP3 Timeout Value
* @var int
*/
public $tval;
/**
* POP3 Username
* @var string
*/
public $username;
/**
* POP3 Password
* @var string
*/
public $password;
/////////////////////////////////////////////////
// PROPERTIES, PRIVATE AND PROTECTED
/////////////////////////////////////////////////
private $pop_conn;
private $connected;
private $error; // Error log array
/**
* Constructor, sets the initial values
* @access public
* @return POP3
*/
public function __construct() {
$this->pop_conn = 0;
$this->connected = false;
$this->error = null;
}
/**
* Combination of public events - connect, login, disconnect
* @access public
* @param string $host
* @param integer $port
* @param integer $tval
* @param string $username
* @param string $password
*/
public function Authorise ($host, $port = false, $tval = false, $username = '', $password = '', $debug_level = 0) {
$this->host = $host;
// If no port value is passed, retrieve it
if ($port == false) {
$this->port = $this->POP3_PORT;
} else {
$this->port = $port;
}
// If no port value is passed, retrieve it
if ($tval == false) {
$this->tval = $this->POP3_TIMEOUT;
} else {
$this->tval = $tval;
}
$this->do_debug = $debug_level;
$this->username = $username;
$this->password = $password;
// Refresh the error log
$this->error = null;
// Connect
$result = $this->Connect($this->host, $this->port, $this->tval);
if ($result) {
$login_result = $this->Login($this->username, $this->password);
if ($login_result) {
$this->Disconnect();
return true;
}
}
// We need to disconnect regardless if the login succeeded
$this->Disconnect();
return false;
}
/**
* Connect to the POP3 server
* @access public
* @param string $host
* @param integer $port
* @param integer $tval
* @return boolean
*/
public function Connect ($host, $port = false, $tval = 30) {
// Are we already connected?
if ($this->connected) {
return true;
}
/*
On Windows this will raise a PHP Warning error if the hostname doesn't exist.
Rather than supress it with @fsockopen, let's capture it cleanly instead
*/
set_error_handler(array(&$this, 'catchWarning'));
// Connect to the POP3 server
$this->pop_conn = fsockopen($host, // POP3 Host
$port, // Port #
$errno, // Error Number
$errstr, // Error Message
$tval); // Timeout (seconds)
// Restore the error handler
restore_error_handler();
// Does the Error Log now contain anything?
if ($this->error && $this->do_debug >= 1) {
$this->displayErrors();
}
// Did we connect?
if ($this->pop_conn == false) {
// It would appear not...
$this->error = array(
'error' => "Failed to connect to server $host on port $port",
'errno' => $errno,
'errstr' => $errstr
);
if ($this->do_debug >= 1) {
$this->displayErrors();
}
return false;
}
// Increase the stream time-out
stream_set_timeout($this->pop_conn, $tval, 0);
// Get the POP3 server response
$pop3_response = $this->getResponse();
// Check for the +OK
if ($this->checkResponse($pop3_response)) {
// The connection is established and the POP3 server is talking
$this->connected = true;
return true;
}
}
/**
* Login to the POP3 server (does not support APOP yet)
* @access public
* @param string $username
* @param string $password
* @return boolean
*/
public function Login ($username = '', $password = '') {
if ($this->connected == false) {
$this->error = 'Not connected to POP3 server';
if ($this->do_debug >= 1) {
$this->displayErrors();
}
}
if (empty($username)) {
$username = $this->username;
}
if (empty($password)) {
$password = $this->password;
}
$pop_username = "USER $username" . $this->CRLF;
$pop_password = "PASS $password" . $this->CRLF;
// Send the Username
$this->sendString($pop_username);
$pop3_response = $this->getResponse();
if ($this->checkResponse($pop3_response)) {
// Send the Password
$this->sendString($pop_password);
$pop3_response = $this->getResponse();
if ($this->checkResponse($pop3_response)) {
return true;
} else {
return false;
}
} else {
return false;
}
}
/**
* Disconnect from the POP3 server
* @access public
*/
public function Disconnect () {
$this->sendString('QUIT');
fclose($this->pop_conn);
}
/////////////////////////////////////////////////
// Private Methods
/////////////////////////////////////////////////
/**
* Get the socket response back.
* $size is the maximum number of bytes to retrieve
* @access private
* @param integer $size
* @return string
*/
private function getResponse ($size = 128) {
$pop3_response = fgets($this->pop_conn, $size);
return $pop3_response;
}
/**
* Send a string down the open socket connection to the POP3 server
* @access private
* @param string $string
* @return integer
*/
private function sendString ($string) {
$bytes_sent = fwrite($this->pop_conn, $string, strlen($string));
return $bytes_sent;
}
/**
* Checks the POP3 server response for +OK or -ERR
* @access private
* @param string $string
* @return boolean
*/
private function checkResponse ($string) {
if (substr($string, 0, 3) !== '+OK') {
$this->error = array(
'error' => "Server reported an error: $string",
'errno' => 0,
'errstr' => ''
);
if ($this->do_debug >= 1) {
$this->displayErrors();
}
return false;
} else {
return true;
}
}
/**
* If debug is enabled, display the error message array
* @access private
*/
private function displayErrors () {
echo '<pre>';
foreach ($this->error as $single_error) {
print_r($single_error);
}
echo '</pre>';
}
/**
* Takes over from PHP for the socket warning handler
* @access private
* @param integer $errno
* @param string $errstr
* @param string $errfile
* @param integer $errline
*/
private function catchWarning ($errno, $errstr, $errfile, $errline) {
$this->error[] = array(
'error' => "Connecting to the POP3 server raised a PHP warning: ",
'errno' => $errno,
'errstr' => $errstr
);
}
// End of class
}
?>

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