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-<?php
-/*~ class.pop3.php
-.---------------------------------------------------------------------------.
-| Software: PHPMailer - PHP email class |
-| Version: 2.0.0 rc2 |
-| Contact: via sourceforge.net support pages (also www.codeworxtech.com) |
-| Info: http://phpmailer.sourceforge.net |
-| Support: http://sourceforge.net/projects/phpmailer/ |
-| ------------------------------------------------------------------------- |
-| Author: Andy Prevost (project admininistrator) |
-| Author: Brent R. Matzelle (original founder) |
-| Copyright (c) 2004-2007, 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) |
-'---------------------------------------------------------------------------'
-
-/**
- * POP Before SMTP Authentication Class
- * Version 1.0
- *
- * Author: Richard Davey (rich@corephp.co.uk)
- * 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 me
- * and we can test changes to this script.
- *
- * This class is based on the structure of the SMTP class 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
- */
- var $POP3_PORT = 110;
-
- /**
- * Default Timeout
- * @var int
- */
- var $POP3_TIMEOUT = 30;
-
- /**
- * POP3 Carriage Return + Line Feed
- * @var string
- */
- var $CRLF = "\r\n";
-
- /**
- * Displaying Debug warnings? (0 = now, 1+ = yes)
- * @var int
- */
- var $do_debug = 2;
-
- /**
- * POP3 Mail Server
- * @var string
- */
- var $host;
-
- /**
- * POP3 Port
- * @var int
- */
- var $port;
-
- /**
- * POP3 Timeout Value
- * @var int
- */
- var $tval;
-
- /**
- * POP3 Username
- * @var string
- */
- var $username;
-
- /**
- * POP3 Password
- * @var string
- */
- var $password;
-
- /**#@+
- * @access private
- */
- var $pop_conn;
- var $connected;
- var $error; // Error log array
- /**#@-*/
-
- /**
- * Constructor, sets the initial values
- *
- * @return POP3
- */
- function POP3 ()
- {
- $this->pop_conn = 0;
- $this->connected = false;
- $this->error = null;
- }
-
- /**
- * Combination of public events - connect, login, disconnect
- *
- * @param string $host
- * @param integer $port
- * @param integer $tval
- * @param string $username
- * @param string $password
- */
- function Authorise ($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
- *
- * @param string $host
- * @param integer $port
- * @param integer $tval
- * @return boolean
- */
- function Connect ($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)
- {
- $this->displayErrors();
- }
-
- return false;
- }
-
- // Increase the stream time-out
-
- // Check for PHP 4.3.0 or later
- if (version_compare(phpversion(), '4.3.0', 'ge'))
- {
- stream_set_timeout($this->pop_conn, $tval, 0);
- }
- else
- {
- // Does not work on Windows
- if (substr(PHP_OS, 0, 3) !== 'WIN')
- {
- socket_set_timeout($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)
- *
- * @param string $username
- * @param string $password
- * @return boolean
- */
- function Login ($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
- */
- 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
- *
- * @param integer $size
- * @return string
- */
- function getResponse ($size = 128)
- {
- $pop3_response = fgets($this->pop_conn, $size);
-
- return $pop3_response;
- }
-
- /**
- * Send a string down the open socket connection to the POP3 server
- *
- * @param string $string
- * @return integer
- */
- function sendString ($string)
- {
- $bytes_sent = fwrite($this->pop_conn, $string, strlen($string));
-
- return $bytes_sent;
-
- }
-
- /**
- * Checks the POP3 server response for +OK or -ERR
- *
- * @param string $string
- * @return boolean
- */
- function checkResponse ($string)
- {
- if (substr($string, 0, 3) !== '+OK')
- {
- $this->error = array(
- 'error' => "Server reported an error: $string",
- 'errno' => 0,
- 'errstr' => ''
- );
-
- if ($this->do_debug >= 1)
- {
- $this->displayErrors();
- }
-
- return false;
- }
- else
- {
- return true;
- }
-
- }
-
- /**
- * If debug is enabled, display the error message array
- *
- */
- function displayErrors ()
- {
- echo '<pre>';
-
- foreach ($this->error as $single_error)
- {
- print_r($single_error);
- }
-
- echo '</pre>';
- }
-
- /**
- * Takes over from PHP for the socket warning handler
- *
- * @param integer $errno
- * @param string $errstr
- * @param string $errfile
- * @param integer $errline
- */
- function catchWarning ($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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