<?php

class App_Model_Mail extends Zend_Mail
{
    /**
     * Sets the HTML body for the message
     *
     * @param  string $html
     * @param  string $charset
     * @param  string $encoding
     * @return Zend_Mail Provides fluent interface
     */
    public function setBodyHtml($html, $charset = null, $encoding = Zend_Mime::ENCODING_QUOTEDPRINTABLE, $preload_images = true)
    {
        $preload_images = false;
        try {
            if ($preload_images) {

                $this->setType(Zend_Mime::MULTIPART_RELATED);

                $dom = new DOMDocument(null, $this->getCharset());
                @$dom->loadHTML($html);

                $images = $dom->getElementsByTagName('img');

                for ($i = 0; $i < $images->length; $i++) {
                    $img = $images->item($i);
                    $url = $img->getAttribute('src');

                    $image_http = new Zend_Http_Client($url);
                    $image_http->setAdapter('Zend_Http_Client_Adapter_Curl');

                    $response = $image_http->request();

                    if ($response->getStatus() == 200) {
                        $image_content = $response->getBody();

                        $pathinfo = pathinfo($url);
                        $mime_type = $response->getHeader('Content-Type');

                        $mime = new Zend_Mime_Part($image_content);
                        $mime->id = $url;
                        $mime->location = $url;
                        $mime->type = $mime_type;
                        $mime->disposition = Zend_Mime::DISPOSITION_INLINE;
                        $mime->encoding = Zend_Mime::ENCODING_BASE64;
                        $mime->filename = $pathinfo['basename'];

                        $this->addAttachment($mime);
                    }
                }
            }
        } catch (ZendException $e) {
            Zend_Registry::get('error_log')->setEventItem('url', $this->getRequest()->getRequestUri())->setEventItem('trace', Zend_Json::encode($e->getTrace()))->setEventItem('params', Zend_Json::encode($this->getRequest()->getParams()))->info($e->getMessage());
        }

        return parent::setBodyHtml($html, $charset, $encoding);
    }
}