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✎ Editing: AuthHandler.php ← Back

<?php

/*
 * This file is part of SwiftMailer.
 * (c) 2004-2009 Chris Corbyn
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

/**
 * An ESMTP handler for AUTH support.
 *
 * @author     Chris Corbyn
 */
class Swift_Transport_Esmtp_AuthHandler implements Swift_Transport_EsmtpHandler
{
    /**
     * Authenticators available to process the request.
     *
     * @var Swift_Transport_Esmtp_Authenticator[]
     */
    private $_authenticators = array();

/**
     * The username for authentication.
     *
     * @var string
     */
    private $_username;

/**
     * The password for authentication.
     *
     * @var string
     */
    private $_password;

/**
     * The auth mode for authentication.
     *
     * @var string
     */
    private $_auth_mode;

/**
     * The ESMTP AUTH parameters available.
     *
     * @var string[]
     */
    private $_esmtpParams = array();

/**
     * Create a new AuthHandler with $authenticators for support.
     *
     * @param Swift_Transport_Esmtp_Authenticator[] $authenticators
     */
    public function __construct(array $authenticators)
    {
        $this->setAuthenticators($authenticators);
    }

/**
     * Set the Authenticators which can process a login request.
     *
     * @param Swift_Transport_Esmtp_Authenticator[] $authenticators
     */
    public function setAuthenticators(array $authenticators)
    {
        $this->_authenticators = $authenticators;
    }

/**
     * Get the Authenticators which can process a login request.
     *
     * @return Swift_Transport_Esmtp_Authenticator[]
     */
    public function getAuthenticators()
    {
        return $this->_authenticators;
    }

/**
     * Set the username to authenticate with.
     *
     * @param string $username
     */
    public function setUsername($username)
    {
        $this->_username = $username;
    }

/**
     * Get the username to authenticate with.
     *
     * @return string
     */
    public function getUsername()
    {
        return $this->_username;
    }

/**
     * Set the password to authenticate with.
     *
     * @param string $password
     */
    public function setPassword($password)
    {
        $this->_password = $password;
    }

/**
     * Get the password to authenticate with.
     *
     * @return string
     */
    public function getPassword()
    {
        return $this->_password;
    }

/**
     * Set the auth mode to use to authenticate.
     *
     * @param string $mode
     */
    public function setAuthMode($mode)
    {
        $this->_auth_mode = $mode;
    }

/**
     * Get the auth mode to use to authenticate.
     *
     * @return string
     */
    public function getAuthMode()
    {
        return $this->_auth_mode;
    }

/**
     * Get the name of the ESMTP extension this handles.
     *
     * @return bool
     */
    public function getHandledKeyword()
    {
        return 'AUTH';
    }

/**
     * Set the parameters which the EHLO greeting indicated.
     *
     * @param string[] $parameters
     */
    public function setKeywordParams(array $parameters)
    {
        $this->_esmtpParams = $parameters;
    }

/**
     * Runs immediately after a EHLO has been issued.
     *
     * @param Swift_Transport_SmtpAgent $agent to read/write
     */
    public function afterEhlo(Swift_Transport_SmtpAgent $agent)
    {
        if ($this->_username) {
            $count = 0;
            foreach ($this->_getAuthenticatorsForAgent() as $authenticator) {
                if (in_array(strtolower($authenticator->getAuthKeyword()),
                    array_map('strtolower', $this->_esmtpParams))) {
                    $count++;
                    if ($authenticator->authenticate($agent, $this->_username, $this->_password)) {
                        return;
                    }
                }
            }
            throw new Swift_TransportException(
                'Failed to authenticate on SMTP server with username "'.
                $this->_username.'" using '.$count.' possible authenticators'
                );
        }
    }

/**
     * Not used.
     */
    public function getMailParams()
    {
        return array();
    }

/**
     * Not used.
     */
    public function getRcptParams()
    {
        return array();
    }

/**
     * Not used.
     */
    public function onCommand(Swift_Transport_SmtpAgent $agent, $command, $codes = array(), &$failedRecipients = null, &$stop = false)
    {
    }

/**
     * Returns +1, -1 or 0 according to the rules for usort().
     *
     * This method is called to ensure extensions can be execute in an appropriate order.
     *
     * @param string $esmtpKeyword to compare with
     *
     * @return int
     */
    public function getPriorityOver($esmtpKeyword)
    {
        return 0;
    }

/**
     * Returns an array of method names which are exposed to the Esmtp class.
     *
     * @return string[]
     */
    public function exposeMixinMethods()
    {
        return array('setUsername', 'getUsername', 'setPassword', 'getPassword', 'setAuthMode', 'getAuthMode');
    }

/**
     * Not used.
     */
    public function resetState()
    {
    }

/**
     * Returns the authenticator list for the given agent.
     *
     * @param Swift_Transport_SmtpAgent $agent
     *
     * @return array
     */
    protected function _getAuthenticatorsForAgent()
    {
        if (!$mode = strtolower($this->_auth_mode)) {
            return $this->_authenticators;
        }

foreach ($this->_authenticators as $authenticator) {
            if (strtolower($authenticator->getAuthKeyword()) == $mode) {
                return array($authenticator);
            }
        }

throw new Swift_TransportException('Auth mode '.$mode.' is invalid');
    }
}

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