/**
* Process inline images. Convert it to embedded attachments and update message body.
*
* @param \Swift_Message $message
* @param EmailModel $model
*/
protected function processEmbeddedImages(\Swift_Message $message, EmailModel $model)
{
if ($model->getType() === 'html') {
$guesser = ExtensionGuesser::getInstance();
$body = $message->getBody();
$body = preg_replace_callback('/<img(.*)src(\\s*)=(\\s*)["\'](.*)["\']/U', function ($matches) use($message, $guesser, $model) {
if (count($matches) === 5) {
// 1st match contains any data between '<img' and 'src' parts (e.g. 'width=100')
$imgConfig = $matches[1];
// 4th match contains src attribute value
$srcData = $matches[4];
if (strpos($srcData, 'data:image') === 0) {
list($mime, $content) = explode(';', $srcData);
list($encoding, $file) = explode(',', $content);
$mime = str_replace('data:', '', $mime);
$fileName = sprintf('%s.%s', uniqid(), $guesser->guess($mime));
$swiftAttachment = \Swift_Image::newInstance(ContentDecoder::decode($file, $encoding), $fileName, $mime);
/** @var $message \Swift_Message */
$id = $message->embed($swiftAttachment);
$attachmentContent = new EmailAttachmentContent();
$attachmentContent->setContent($file);
$attachmentContent->setContentTransferEncoding($encoding);
$emailAttachment = new EmailAttachment();
$emailAttachment->setEmbeddedContentId($swiftAttachment->getId());
$emailAttachment->setFileName($fileName);
$emailAttachment->setContentType($mime);
$attachmentContent->setEmailAttachment($emailAttachment);
$emailAttachment->setContent($attachmentContent);
$emailAttachmentModel = new EmailAttachmentModel();
$emailAttachmentModel->setEmailAttachment($emailAttachment);
$model->addAttachment($emailAttachmentModel);
return sprintf('<img%ssrc="%s"', $imgConfig, $id);
}
}
}, $body);
$message->setBody($body, 'text/html');
}
}