PHP教程.应用实例10

<?php
class html_mime_mail {
    var $headers;
    var $body;
    var $multipart;
    var $mime;
    var $html;
    var $html_text;
    var $html_images = array();
    var $cids = array();
    var $do_html;
    var $parts = array();
    /***************************************
     ** Constructor function. Sets the headers
     ** if supplied.
     ***************************************/
    function html_mime_mail($headers = '') {
        $this->headers = $headers;
    }
    /***************************************
     ** Adds a html part to the mail.
     ** Also replaces image names with
     ** content-id's.
     ***************************************/
    function add_html($html, $text) {
        $this->do_html = 1;
        $this->html = $html;
        $this->html_text = $text;
        if (is_array($this->html_images) AND count($this->html_images) > 0) {
            for ($i = 0; $i < count($this->html_images); $i++) {
                $this->html = ereg_replace($this->html_images[$i]['name'], 'cid:' . $this->html_images[$i]['cid'], $this->html);
            }
        }
    }
    /***************************************
     ** Builds html part of email.
     ***************************************/
    function build_html($orig_boundary) {
        $sec_boundary = '=_' . md5(uniqid(time()));
        $thr_boundary = '=_' . md5(uniqid(time()));
        if (!is_array($this->html_images)) {
            $this->multipart.= '--' . $orig_boundary . "\r\n";
            $this->multipart.= 'Content-Type: multipart/alternative; boundary="' . $sec_boundary . "\"\r\n\r\n\r\n";
            $this->multipart.= '--' . $sec_boundary . "\r\n";
            $this->multipart.= 'Content-Type: text/plain' . "\r\n";
            $this->multipart.= 'Content-Transfer-Encoding: 7bit' . "\r\n\r\n";
            $this->multipart.= $this->html_text . "\r\n\r\n";
            $this->multipart.= '--' . $sec_boundary . "\r\n";
            $this->multipart.= 'Content-Type: text/html' . "\r\n";
            $this->multipart.= 'Content-Transfer-Encoding: 7bit' . "\r\n\r\n";
            $this->multipart.= $this->html . "\r\n\r\n";
            $this->multipart.= '--' . $sec_boundary . "--\r\n\r\n";
        } else {
            $this->multipart.= '--' . $orig_boundary . "\r\n";
            $this->multipart.= 'Content-Type: multipart/related; boundary="' . $sec_boundary . "\"\r\n\r\n\r\n";
            $this->multipart.= '--' . $sec_boundary . "\r\n";
            $this->multipart.= 'Content-Type: multipart/alternative; boundary="' . $thr_boundary . "\"\r\n\r\n\r\n";
            $this->multipart.= '--' . $thr_boundary . "\r\n";
            $this->multipart.= 'Content-Type: text/plain' . "\r\n";
            $this->multipart.= 'Content-Transfer-Encoding: 7bit' . "\r\n\r\n";
            $this->multipart.= $this->html_text . "\r\n\r\n";
            $this->multipart.= '--' . $thr_boundary . "\r\n";
            $this->multipart.= 'Content-Type: text/html' . "\r\n";
            $this->multipart.= 'Content-Transfer-Encoding: 7bit' . "\r\n\r\n";
            $this->multipart.= $this->html . "\r\n\r\n";
            $this->multipart.= '--' . $thr_boundary . "--\r\n\r\n";
            for ($i = 0; $i < count($this->html_images); $i++) {
                $this->multipart.= '--' . $sec_boundary . "\r\n";
                $this->build_html_image($i);
            }
            $this->multipart.= "--" . $sec_boundary . "--\r\n\r\n";
        }
    }
    /***************************************
     ** Adds an image to the list of embedded
     ** images.
     ***************************************/
    function add_html_image($file, $name = '', $c_type = 'application/octet-stream') {
        $this->html_images[] = array(
            'body' => $file,
            'name' => $name,
            'c_type' => $c_type,
            'cid' => md5(uniqid(time()))
        );
    }
    /***************************************
     ** Adds a file to the list of attachments.
     ***************************************/
    function add_attachment($file, $name = '', $c_type = 'application/octet-stream') {
        $this->parts[] = array(
            'body' => $file,
            'name' => $name,
            'c_type' => $c_type
        );
    }
    /***************************************
     ** Builds an embedded image part of an
     ** html mail.
     ***************************************/
    function build_html_image($i) {
        $this->multipart.= 'Content-Type: ' . $this->html_images[$i]['c_type'];
        if ($this->html_images[$i]['name'] != '') $this->multipart.= '; name="' . $this->html_images[$i]['name'] . "\"\r\n";
        else $this->multipart.= "\r\n";
        $this->multipart.= 'Content-ID: <' . $this->html_images[$i]['cid'] . ">\r\n";
        $this->multipart.= 'Content-Transfer-Encoding: base64' . "\r\n\r\n";
        $this->multipart.= chunk_split(base64_encode($this->html_images[$i]['body'])) . "\r\n";
    }
    /***************************************
     ** Builds a single part of a multipart
     ** message.
     ***************************************/
    function build_part($i) {
        $message_part = '';
        $message_part.= 'Content-Type: ' . $this->parts[$i]['c_type'];
        if ($this->parts[$i]['name'] != '') $message_part.= '; name="' . $this->parts[$i]['name'] . "\"\r\n";
        else $message_part.= "\r\n";
        // Determine content encoding.
        if ($this->parts[$i]['c_type'] == 'text/plain') {
            $message_part.= 'Content-Transfer-Encoding: 7bit' . "\r\n\r\n";
            $message_part.= $this->parts[$i]['body'] . "\r\n";
        } else {
            $message_part.= 'Content-Transfer-Encoding: base64' . "\r\n";
            $message_part.= 'Content-Disposition: attachment; filename="' . $this->parts[$i]['name'] . "\"\r\n\r\n";
            $message_part.= chunk_split(base64_encode($this->parts[$i]['body'])) . "\r\n";
        }
        return $message_part;
    }
    /***************************************
     ** Builds the multipart message from the
     ** list ($this->parts).
     ***************************************/
    function build_message() {
        $boundary = '=_' . md5(uniqid(time()));
        $this->headers.= "MIME-Version: 1.0\r\n";
        $this->headers.= "Content-Type: multipart/mixed; boundary=\"" . $boundary . "\"\r\n";
        $this->multipart = '';
        $this->multipart.= "This is a MIME encoded message.\r\nCreated by html_mime_mail.class.\r\nSee http://www.heyes-computing.net/scripts/ for a copy.\r\n\r\n";
        if (isset($this->do_html) AND $this->do_html == 1) $this->build_html($boundary);
        if (isset($this->body) AND $this->body != '') $this->parts[] = array(
            'body' => $this->body,
            'name' => '',
            'c_type' => 'text/plain'
        );
        for ($i = (count($this->parts) - 1); $i >= 0; $i--) {
            $this->multipart.= '--' . $boundary . "\r\n" . $this->build_part($i);
        }
        $this->mime = $this->multipart . "--" . $boundary . "--\r\n";
    }
    /***************************************
     ** Sends the mail.
     ***************************************/
    function send($to_name, $to_addr, $from_name, $from_addr, $subject = '', $headers = '') {
        if ($to_name != '') $to = '"' . $to_name . '" <' . $to_addr . '>';
        else $to = $to_addr;
        if ($from_name != '') $from = '"' . $from_name . '" <' . $from_addr . '>';
        else $from = $from_addr;
        $this->headers.= 'From: ' . $from . "\r\n";
        //$this->headers.= $headers;
        mail($to, $subject, $this->mime, $this->headers);
    }
    /***************************************
     ** Use this method to deliver using direct
     ** smtp connection. Relies upon Manuel Lemos'
     ** smtp mail delivery class available at:
     ** http://phpclasses.upperdesign.com
     **
     ** void smtp_send( string *Name* of smtp object,
     ** string From address,
     ** array To addresses,
     ** array Headers,
     ** string The body)
     ***************************************/
    function smtp_send($smtp_obj, $from_addr, $to_addr) {
        global $$smtp_obj;
        $smtp_obj = $$smtp_obj;
        if (substr($this->headers, -2) == "\r\n") $this->headers = substr($this->headers, 0, -2);
        $this->headers = explode("\r\n", $this->headers);
        $smtp_obj->sendmessage($from_addr, $to_addr, $this->headers, $this->mime);
    }
} // End of class.
?>