<?php

/**

 * Zend Framework

 *

 * LICENSE

 *

 * This source file is subject to the new BSD license that is bundled

 * with this package in the file LICENSE.txt.

 * It is also available through the world-wide-web at this URL:

 * http://framework.zend.com/license/new-bsd

 * If you did not receive a copy of the license and are unable to

 * obtain it through the world-wide-web, please send an email

 * to license@zend.com so we can send you a copy immediately.

 *

 * @category   Zend

 * @package    Zend_Mail

 * @subpackage Transport

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 * @version    $Id: Sendmail.php 21603 2010-03-22 12:47:11Z yoshida@zend.co.jp $

 */

/**

 * @see Zend_Mail_Transport_Abstract

 */

require_once 'Zend/Mail/Transport/Abstract.php';

/**

 * Class for sending eMails via the PHP internal mail() function

 *

 * @category   Zend

 * @package    Zend_Mail

 * @subpackage Transport

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 */

class Zend_Mail_Transport_Sendmail extends Zend_Mail_Transport_Abstract

{

    /**

     * Subject

     * @var string

     * @access public

     */

    public $subject = null;

    /**

     * Config options for sendmail parameters

     *

     * @var string

     */

    public $parameters;

    /**

     * EOL character string

     * @var string

     * @access public

     */

    public $EOL = PHP_EOL;

    /**

     * error information

     * @var string

     */

    protected $_errstr;

    /**

     * Constructor.

     *

     * @param  string|array|Zend_Config $parameters OPTIONAL (Default: null)

     * @return void

     */

    public function __construct($parameters = null)

    {

        if ($parameters instanceof Zend_Config) { 

            $parameters = $parameters->toArray(); 

        }

        if (is_array($parameters)) { 

            $parameters = implode(' ', $parameters);

        }

        $this->parameters = $parameters;

    }

    /**

     * Send mail using PHP native mail()

     *

     * @access public

     * @return void

     * @throws Zend_Mail_Transport_Exception if parameters is set

     *         but not a string

     * @throws Zend_Mail_Transport_Exception on mail() failure

     */

    public function _sendMail()

    {

        if ($this->parameters === null) {

            set_error_handler(array($this, '_handleMailErrors'));

            $result = mail(

                $this->recipients,

                $this->_mail->getSubject(),

                $this->body,

                $this->header);

            restore_error_handler();

        } else {

            if(!is_string($this->parameters)) {

                /**

                 * @see Zend_Mail_Transport_Exception

                 * 

                 * Exception is thrown here because

                 * $parameters is a public property

                 */

                require_once 'Zend/Mail/Transport/Exception.php';

                throw new Zend_Mail_Transport_Exception(

                    'Parameters were set but are not a string'

                );

            }

            set_error_handler(array($this, '_handleMailErrors'));

            $result = mail(

                $this->recipients,

                $this->_mail->getSubject(),

                $this->body,

                $this->header,

                $this->parameters);

            restore_error_handler();

        }

        if ($this->_errstr !== null || !$result) {

            /**

             * @see Zend_Mail_Transport_Exception

             */

            require_once 'Zend/Mail/Transport/Exception.php';

            throw new Zend_Mail_Transport_Exception('Unable to send mail. ' . $this->_errstr);

        }

    }

    /**

     * Format and fix headers

     *

     * mail() uses its $to and $subject arguments to set the To: and Subject:

     * headers, respectively. This method strips those out as a sanity check to

     * prevent duplicate header entries.

     *

     * @access  protected

     * @param   array $headers

     * @return  void

     * @throws  Zend_Mail_Transport_Exception

     */

    protected function _prepareHeaders($headers)

    {

        if (!$this->_mail) {

            /**

             * @see Zend_Mail_Transport_Exception

             */

            require_once 'Zend/Mail/Transport/Exception.php';

            throw new Zend_Mail_Transport_Exception('_prepareHeaders requires a registered Zend_Mail object');

        }

        // mail() uses its $to parameter to set the To: header, and the $subject

        // parameter to set the Subject: header. We need to strip them out.

        if (0 === strpos(PHP_OS, 'WIN')) {

            // If the current recipients list is empty, throw an error

            if (empty($this->recipients)) {

                /**

                 * @see Zend_Mail_Transport_Exception

                 */

                require_once 'Zend/Mail/Transport/Exception.php';

                throw new Zend_Mail_Transport_Exception('Missing To addresses');

            }

        } else {

            // All others, simply grab the recipients and unset the To: header

            if (!isset($headers['To'])) {

                /**

                 * @see Zend_Mail_Transport_Exception

                 */

                require_once 'Zend/Mail/Transport/Exception.php';

                throw new Zend_Mail_Transport_Exception('Missing To header');

            }

            unset($headers['To']['append']);

            $this->recipients = implode(',', $headers['To']);

        }

        // Remove recipient header

        unset($headers['To']);

        // Remove subject header, if present

        if (isset($headers['Subject'])) {

            unset($headers['Subject']);

        }

        // Prepare headers

        parent::_prepareHeaders($headers);

        // Fix issue with empty blank line ontop when using Sendmail Trnasport

        $this->header = rtrim($this->header);

    }

    /**

     * Temporary error handler for PHP native mail().

     *

     * @param int    $errno

     * @param string $errstr

     * @param string $errfile

     * @param string $errline

     * @param array  $errcontext

     * @return true

     */

    public function _handleMailErrors($errno, $errstr, $errfile = null, $errline = null, array $errcontext = null)

    {

        $this->_errstr = $errstr;

        return true;

    }

}