mime.php

开源邮件管理系统

            );
	    return $err;
        }
        $filename = basename($filename);
        if (PEAR::isError($filedata)) {
            return $filedata;
        }

        $this->_parts[] = array(
                                'body'        => $filedata,
                                'name'        => $filename,
                                'c_type'      => $c_type,
                                'encoding'    => $encoding,
                                'charset'     => $charset,
                                'disposition' => $disposition
                               );
        return true;
    }

    /**
     * Get the contents of the given file name as string
     *
     * @param  string  $file_name  path of file to process
     * @return string  contents of $file_name
     * @access private
     */
    function &_file2str($file_name)
    {
        if (!is_readable($file_name)) {
            $err = PEAR::raiseError('File is not readable ' . $file_name);
            return $err;
        }
        if (!$fd = fopen($file_name, 'rb')) {
            $err = PEAR::raiseError('Could not open ' . $file_name);
            return $err;
        }
        $filesize = filesize($file_name);
        if ($filesize == 0){
            $cont =  "";
        }else{
            if ($magic_quote_setting = get_magic_quotes_runtime()){
                set_magic_quotes_runtime(0);
            }
            $cont = fread($fd, $filesize);
            if ($magic_quote_setting){
                set_magic_quotes_runtime($magic_quote_setting);
            }
        }
        fclose($fd);
        return $cont;
    }

    /**
     * Adds a text subpart to the mimePart object 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.
     * @param string   The text to add.
     * @return object  The text mimePart object
     * @access private
     */
    function &_addTextPart(&$obj, $text)
    {
        $params['content_type'] = 'text/plain';
        $params['encoding']     = $this->_build_params['text_encoding'];
        $params['charset']      = $this->_build_params['text_charset'];
        if (is_object($obj)) {
            $ret = $obj->addSubpart($text, $params);
            return $ret;
        } else {
            $ret = new Mail_mimePart($text, $params);
            return $ret;
        }
    }

    /**
     * Adds a html subpart to the mimePart object 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 html mimePart object
     * @access private
     */
    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)) {
            $ret = $obj->addSubpart($this->_htmlbody, $params);
            return $ret;
        } else {
            $ret = new Mail_mimePart($this->_htmlbody, $params);
            return $ret;
        }
    }

    /**
     * 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';
        $ret = new Mail_mimePart('', $params);
        return $ret;
    }

    /**
     * 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 {
            $ret = new Mail_mimePart('', $params);
            return $ret;
        }
    }

    /**
     * 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 {
            $ret = new Mail_mimePart('', $params);
            return $ret;
        }
    }

    /**
     * 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'] . '; ' .
                                  'name="' . $value['name'] . '"';
        $params['encoding']     = 'base64';
        $params['disposition']  = 'inline';
        $params['dfilename']    = $value['name'];
        $params['cid']          = $value['cid'];
        $ret = $obj->addSubpart($value['body'], $params);
        return $ret;
	
    }

    /**
     * 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['dfilename']    = $value['name'];
        $params['encoding']     = $value['encoding'];
        if ($value['disposition'] != "inline") {
            $fname = array("fname" => $value['name']);
            $fname_enc = $this->_encodeHeaders($fname, array('head_charset' => $value['charset'] ? $value['charset'] : 'iso-8859-1'));
            $params['dfilename'] = $fname_enc['fname'];
        }
        if ($value['charset']) {
            $params['charset'] = $value['charset'];
        }
        $params['content_type'] = $value['c_type'] . '; ' .
                                  'name="' . $params['dfilename'] . '"';
        $params['disposition']  = isset($value['disposition']) ? 
                                  $value['disposition'] : 'attachment';
        $ret = $obj->addSubpart($value['body'], $params);
        return $ret;
    }

    /**
     * Returns the complete e-mail, ready to send using an alternative
     * mail delivery method. Note that only the mailpart that is made
     * with Mail_Mime is created. This means that,
     * YOU WILL HAVE NO TO: HEADERS UNLESS YOU SET IT YOURSELF 
     * using the $xtra_headers parameter!
     * 
     * @param  string $separation   The separation etween these two parts.
     * @param  array  $build_params The Build parameters passed to the
     *                              &get() function. See &get for more info.
     * @param  array  $xtra_headers The extra headers that should be passed
     *                              to the &headers() function.
     *                              See that function for more info.
     * @param  bool   $overwrite    Overwrite the existing headers with new.
     * @return string The complete e-mail.
     * @access public
     */
    function getMessage($separation = null, $build_params = null, $xtra_headers = null, $overwrite = false)
    {
        if ($separation === null)
        {
            $separation = MAIL_MIME_CRLF;
        }
        $body = $this->get($build_params);
        $head = $this->txtHeaders($xtra_headers, $overwrite);
        $mail = $head . $separation . $body;
        return $mail;
    }


    /**
     * Builds the multipart message from the list ($this->_parts) and
     * returns the mime content.
     *
     * @param  array  Build parameters that change the way the email
     *                is built. Should be associative. Can contain:
     *                head_encoding  -  What encoding to use for the headers. 
     *                                  Options: quoted-printable or base64
     *                                  Default is quoted-printable
     *                text_encoding  -  What encoding to use for plain text
     *                                  Options: 7bit, 8bit, base64, or quoted-printable
     *                                  Default is 7bit
     *                html_encoding  -  What encoding to use for html
     *                                  Options: 7bit, 8bit, base64, or quoted-printable
     *                                  Default is quoted-printable
     *                7bit_wrap      -  Number of characters before text is
     *                                  wrapped in 7bit encoding
     *                                  Default is 998
     *                html_charset   -  The character set to use for html.
     *                                  Default is iso-8859-1
     *                text_charset   -  The character set to use for text.
     *                                  Default is iso-8859-1
     *                head_charset   -  The character set to use for headers.
     *                                  Default is iso-8859-1
     * @return string The mime content
     * @access public
     */
    function &get($build_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 $key => $value) {
                $regex = array();
                $regex[] = '#(\s)((?i)src|background|href(?-i))\s*=\s*(["\']?)' .
                            preg_quote($value['name'], '#') . '\3#';
                $regex[] = '#(?i)url(?-i)\(\s*(["\']?)' .
                            preg_quote($value['name'], '#') . '\1\s*\)#';
                $rep = array();
                $rep[] = '\1\2=\3cid:' . $value['cid'] .'\3';
                $rep[] = 'url(\1cid:' . $value['cid'] . '\2)';
                $this->_htmlbody = preg_replace($regex, $rep,
                                       $this->_htmlbody
                                   );
                $this->_html_images[$key]['name'] = basename($this->_html_images[$key]['name']);
            }
        }

        $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->_txtbody);
            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++) {