mime.php

apache windows下的一款好

    */
    function &_addHtmlPart(&$obj){

        $params['content_type'] = 'text/html';
        $params['encoding']     = $this->_build_params['html_encoding'];
        $params['charset']      = $this->_build_params['html_charset'];
        if (is_object($obj)) {
            return $obj->addSubpart($this->_htmlbody, $params);
        } else {
            return new Mail_mimePart($this->_htmlbody, $params);
        }
    }

    /*
    * Creates a new mimePart object, using multipart/mixed as
    * the initial content-type and returns it during the
    * build process.
    *
    * @return object  The multipart/mixed mimePart object
    * @access private
    */
    function &_addMixedPart(){

        $params['content_type'] = 'multipart/mixed';
        return new Mail_mimePart('', $params);
    }

    /*
    * Adds a multipart/alternative part to a mimePart
    * object, (or creates one), and returns it  during
    * the build process.
    *
    * @param mixed    The object to add the part to, or
    *                 null if a new object is to be created.
    * @return object  The multipart/mixed mimePart object
    * @access private
    */
    function &_addAlternativePart(&$obj){

        $params['content_type'] = 'multipart/alternative';
        if (is_object($obj)) {
            return $obj->addSubpart('', $params);
        } else {
            return new Mail_mimePart('', $params);
        }
    }

    /*
    * Adds a multipart/related part to a mimePart
    * object, (or creates one), and returns it  during
    * the build process.
    *
    * @param mixed    The object to add the part to, or
    *                 null if a new object is to be created.
    * @return object  The multipart/mixed mimePart object
    * @access private
    */
    function &_addRelatedPart(&$obj){

        $params['content_type'] = 'multipart/related';
        if (is_object($obj)) {
            return $obj->addSubpart('', $params);
        } else {
            return new Mail_mimePart('', $params);
        }
    }

    /*
    * Adds an html image subpart to a mimePart object
    * and returns it during the build process.
    *
    * @param  object  The mimePart to add the image to
    * @param  array   The image information
    * @return object  The image mimePart object
    * @access private
    */
    function &_addHtmlImagePart(&$obj, $value){

        $params['content_type'] = $value['c_type'];
        $params['encoding']     = 'base64';
        $params['disposition']  = 'inline';
        $params['dfilename']    = $value['name'];
        $params['cid']          = $value['cid'];
        $obj->addSubpart($value['body'], $params);
    }

    /*
    * Adds an attachment subpart to a mimePart object
    * and returns it during the build process.
    *
    * @param  object  The mimePart to add the image to
    * @param  array   The attachment information
    * @return object  The image mimePart object
    * @access private
    */
    function &_addAttachmentPart(&$obj, $value){

        $params['content_type'] = $value['c_type'];
        $params['encoding']     = $value['encoding'];
        $params['disposition']  = 'attachment';
        $params['dfilename']    = $value['name'];
        $obj->addSubpart($value['body'], $params);
    }

    /*
    * Builds the multipart message from the list ($this->_parts) and
    * returns the mime content.
    *
    * @param  array  Build parameters that change the way the email
    *                is built. Should be associative. Can contain:
    *                text_encoding  -  What encoding to use for plain text
    *                                  Default is 7bit
    *                html_encoding  -  What encoding to use for html
    *                                  Default is quoted-printable
    *                7bit_wrap      -  Number of characters before text is
    *                                  wrapped in 7bit encoding
    *                                  Default is 998
    *                html_charset   -  The character set to use for html.
    *                                  Default is iso-8859-1
    *                text_charset   -  The character set to use for text.
    *                                  Default is iso-8859-1
    * @return string The mime content
    * @access public
    */
    function &get($params = null)
    {
        if (isset($build_params)) {
            while (list($key, $value) = each($build_params)) {
                $this->_build_params[$key] = $value;
            }
        }

        if (!empty($this->_html_images) AND isset($this->_htmlbody)) {
            foreach ($this->_html_images as $value) {
                $this->_htmlbody = str_replace($value['name'], 'cid:'.$value['cid'], $this->_htmlbody);
            }
        }

        $null        = null;
        $attachments = !empty($this->_parts)                ? TRUE : FALSE;
        $html_images = !empty($this->_html_images)          ? TRUE : FALSE;
        $html        = !empty($this->_htmlbody)             ? TRUE : FALSE;
        $text        = (!$html AND !empty($this->_txtbody)) ? TRUE : FALSE;

        switch (TRUE) {
            case $text AND !$attachments:
                $message =& $this->_addTextPart($null, $this->text);
                break;

            case !$text AND !$html AND $attachments:
                $message =& $this->_addMixedPart();

                for ($i = 0; $i < count($this->_parts); $i++) {
                    $this->_addAttachmentPart($message, $this->_parts[$i]);
                }
                break;

            case $text AND $attachments:
                $message =& $this->_addMixedPart();
                $this->_addTextPart($message, $this->_txtbody);

                for ($i = 0; $i < count($this->_parts); $i++) {
                    $this->_addAttachmentPart($message, $this->_parts[$i]);
                }
                break;

            case $html AND !$attachments AND !$html_images:
                if (isset($this->_txtbody)) {
                    $message =& $this->_addAlternativePart($null);
   	                $this->_addTextPart($message, $this->_txtbody);
					$this->_addHtmlPart($message);
                    
                } else {
                    $message =& $this->_addHtmlPart($null);
                }
                break;

            case $html AND !$attachments AND $html_images:
                if (isset($this->_txtbody)) {
                    $message =& $this->_addAlternativePart($null);
                    $this->_addTextPart($message, $this->_txtbody);
                    $related =& $this->_addRelatedPart($message);
                } else {
                    $message =& $this->_addRelatedPart($null);
					$related =& $message;
                }
                $this->_addHtmlPart($related);
                for ($i = 0; $i < count($this->_html_images); $i++) {
                    $this->_addHtmlImagePart($related, $this->_html_images[$i]);
                }
                break;

            case $html AND $attachments AND !$html_images:
                $message =& $this->_addMixedPart();
                if (isset($this->_txtbody)) {
                    $alt =& $this->_addAlternativePart($message);
                    $this->_addTextPart($alt, $this->_txtbody);
                    $this->_addHtmlPart($alt);
                } else {
                    $this->_addHtmlPart($message);
                }
                for ($i = 0; $i < count($this->_parts); $i++) {
                    $this->_addAttachmentPart($message, $this->_parts[$i]);
                }
                break;

            case $html AND $attachments AND $html_images:
                $message =& $this->_addMixedPart();
                if (isset($this->_txtbody)) {
                    $alt =& $this->_addAlternativePart($message);
                    $this->_addTextPart($alt, $this->_txtbody);
                    $rel =& $this->_addRelatedPart($alt);
                } else {
                    $rel =& $this->_addRelatedPart($message);
                }
                $this->_addHtmlPart($rel);
                for ($i = 0; $i < count($this->_html_images); $i++) {
                    $this->_addHtmlImagePart($rel, $this->_html_images[$i]);
                }
                for ($i = 0; $i < count($this->_parts); $i++) {
                    $this->_addAttachmentPart($message, $this->_parts[$i]);
                }
                break;

        }

        if (isset($message)) {
            $output = $message->encode();
            $this->_headers = $output['headers'];

            return $output['body'];

        } else {
            return FALSE;
        }
    }


    /*
    * Returns an array with the headers needed to prepend to the email
    * (MIME-Version and Content-Type). Format of argument is:
    * $array['header-name'] = 'header-value';
    *
    * @param  array Assoc array with any extra headers. Optional.
    * @return array Assoc array with the mime headers
    * @access public
    */
    function & headers($xtra_headers = null)
    {
        // Content-Type header should already be present, 
        // So just add mime version header
        $headers['MIME-Version'] = '1.0';
        if (isset($xtra_headers)) {
            $headers = array_merge($headers, $xtra_headers);
        }
        $this->_headers = array_merge($headers, $this->_headers);

        return $this->_headers;
    }
}
?>