mimepart.php

This is the script which used on 10minutemail.com for temporary email.

<?php
/**
 * The Mail_mimePart class is used to create MIME E-mail messages
 *
 * This class enables you to manipulate and build a mime email
 * from the ground up. The Mail_Mime class is a userfriendly api
 * to this class for people who aren't interested in the internals
 * of mime mail.
 * This class however allows full control over the email.
 *
 * Compatible with PHP versions 4 and 5
 *
 * LICENSE: This LICENSE is in the BSD license style.
 * Copyright (c) 2002-2003, Richard Heyes <[e-mail]>
 * Copyright (c) 2003-2006, PEAR <[e-mail]>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the following
 * conditions are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - Neither the name of the authors, nor the names of its contributors 
 *   may be used to endorse or promote products derived from this 
 *   software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 *
 * @category   Mail
 * @package    Mail_Mime
 * @author     Richard Heyes  <[e-mail]>
 * @author     Cipriano Groenendal <[e-mail]>
 * @author     Sean Coates <[e-mail]>
 * @copyright  2003-2006 PEAR <[e-mail]>
 * @license    http://www.opensource.org/licenses/bsd-license.php BSD License
 * @version    CVS: $Id: mimePart.php,v 1.25 2007/05/14 21:43:08 cipri Exp $
 * @link       http://pear.php.net/package/Mail_mime
 */


/**
 * The Mail_mimePart class is used to create MIME E-mail messages
 *
 * This class enables you to manipulate and build a mime email
 * from the ground up. The Mail_Mime class is a userfriendly api
 * to this class for people who aren't interested in the internals
 * of mime mail.
 * This class however allows full control over the email.
 *
 * @category   Mail
 * @package    Mail_Mime
 * @author     Richard Heyes  <[e-mail]>
 * @author     Cipriano Groenendal <[e-mail]>
 * @author     Sean Coates <[e-mail]>
 * @copyright  2003-2006 PEAR <[e-mail]>
 * @license    http://www.opensource.org/licenses/bsd-license.php BSD License
 * @version    Release: @package_version@
 * @link       http://pear.php.net/package/Mail_mime
 */
class Mail_mimePart {

   /**
    * The encoding type of this part
    *
    * @var string
    * @access private
    */
    var $_encoding;

   /**
    * An array of subparts
    *
    * @var array
    * @access private
    */
    var $_subparts;

   /**
    * The output of this part after being built
    *
    * @var string
    * @access private
    */
    var $_encoded;

   /**
    * Headers for this part
    *
    * @var array
    * @access private
    */
    var $_headers;

   /**
    * The body of this part (not encoded)
    *
    * @var string
    * @access private
    */
    var $_body;

    /**
     * Constructor.
     *
     * Sets up the object.
     *
     * @param $body   - The body of the mime part if any.
     * @param $params - An associative array of parameters:
     *                  content_type - The content type for this part eg multipart/mixed
     *                  encoding     - The encoding to use, 7bit, 8bit, base64, or quoted-printable
     *                  cid          - Content ID to apply
     *                  disposition  - Content disposition, inline or attachment
     *                  dfilename    - Optional filename parameter for content disposition
     *                  description  - Content description
     *                  charset      - Character set to use
     * @access public
     */
    function Mail_mimePart($body = '', $params = array())
    {
        if (!defined('MAIL_MIMEPART_CRLF')) {
            define('MAIL_MIMEPART_CRLF', defined('MAIL_MIME_CRLF') ? MAIL_MIME_CRLF : "\r\n", TRUE);
        }

        $contentType = array();
        $contentDisp = array();
        foreach ($params as $key => $value) {
            switch ($key) {
                case 'content_type':
                    $contentType['type'] = $value;
                    //$headers['Content-Type'] = $value . (isset($charset) ? '; charset="' . $charset . '"' : '');
                    break;

                case 'encoding':
                    $this->_encoding = $value;
                    $headers['Content-Transfer-Encoding'] = $value;
                    break;

                case 'cid':
                    $headers['Content-ID'] = '<' . $value . '>';
                    break;

                case 'disposition':
                    $contentDisp['disp'] = $value;
                    break;

                case 'dfilename':
                    $contentDisp['filename'] = $value;
                    $contentType['name'] = $value;
                    break;

                case 'description':
                    $headers['Content-Description'] = $value;
                    break;

                case 'charset':
                    $contentType['charset'] = $value;
                    $contentDisp['charset'] = $value;
                    break;

                case 'language':
                    $contentType['language'] = $value;
                    $contentDisp['language'] = $value;
                    break;

                case 'location':
                    $headers['Content-Location'] = $value;
                    break;

            }
        }
        if (isset($contentType['type'])) {
            $headers['Content-Type'] = $contentType['type'];
            if (isset($contentType['name'])) {
                $headers['Content-Type'] .= ';' . MAIL_MIMEPART_CRLF;
                $headers['Content-Type'] .= $this->_buildHeaderParam('name', $contentType['name'], 
                                                isset($contentType['charset']) ? $contentType['charset'] : 'US-ASCII', 
                                                isset($contentType['language']) ? $contentType['language'] : NULL);
            } elseif (isset($contentType['charset'])) {
                $headers['Content-Type'] .= "; charset=\"{$contentType['charset']}\"";
            }
        }


        if (isset($contentDisp['disp'])) {
            $headers['Content-Disposition'] = $contentDisp['disp'];
            if (isset($contentDisp['filename'])) {
                $headers['Content-Disposition'] .= ';' . MAIL_MIMEPART_CRLF;
                $headers['Content-Disposition'] .= $this->_buildHeaderParam('filename', $contentDisp['filename'], 
                                                isset($contentDisp['charset']) ? $contentDisp['charset'] : 'US-ASCII', 
                                                isset($contentDisp['language']) ? $contentDisp['language'] : NULL);
            }
        }
        
        
        
        
        // Default content-type
        if (!isset($headers['Content-Type'])) {
            $headers['Content-Type'] = 'text/plain';
        }

        //Default encoding
        if (!isset($this->_encoding)) {
            $this->_encoding = '7bit';
        }