public function testEmbeddedFilesWithMultipartDataCreateMultipartRelatedContentAsAnAlternative()
{
$message = Swift_Message::newInstance();
$message->setCharset('utf-8');
$message->setSubject('test subject');
$message->addPart('plain part', 'text/plain');
$image = Swift_Image::newInstance('<image data>', 'image.gif', 'image/gif');
$cid = $message->embed($image);
$message->setBody('<img src="' . $cid . '" />', 'text/html');
$message->setTo(array('*****@*****.**' => 'User'));
$message->setFrom(array('*****@*****.**' => 'Other'));
$message->setSender(array('*****@*****.**' => 'Other'));
$id = $message->getId();
$date = preg_quote(date('r', $message->getDate()), '~');
$boundary = $message->getBoundary();
$cidVal = $image->getId();
$this->assertRegExp('~^' . 'Sender: Other <*****@*****.**>' . "\r\n" . 'Message-ID: <' . $id . '>' . "\r\n" . 'Date: ' . $date . "\r\n" . 'Subject: test subject' . "\r\n" . 'From: Other <*****@*****.**>' . "\r\n" . 'To: User <*****@*****.**>' . "\r\n" . 'MIME-Version: 1.0' . "\r\n" . 'Content-Type: multipart/alternative;' . "\r\n" . ' boundary="' . $boundary . '"' . "\r\n" . "\r\n\r\n" . '--' . $boundary . "\r\n" . 'Content-Type: text/plain; charset=utf-8' . "\r\n" . 'Content-Transfer-Encoding: quoted-printable' . "\r\n" . "\r\n" . 'plain part' . "\r\n\r\n" . '--' . $boundary . "\r\n" . 'Content-Type: multipart/related;' . "\r\n" . ' boundary="(.*?)"' . "\r\n" . "\r\n\r\n" . '--\\1' . "\r\n" . 'Content-Type: text/html; charset=utf-8' . "\r\n" . 'Content-Transfer-Encoding: quoted-printable' . "\r\n" . "\r\n" . '<img.*?/>' . "\r\n\r\n" . '--\\1' . "\r\n" . 'Content-Type: image/gif; name=image.gif' . "\r\n" . 'Content-Transfer-Encoding: base64' . "\r\n" . 'Content-Disposition: inline; filename=image.gif' . "\r\n" . 'Content-ID: <' . $cidVal . '>' . "\r\n" . "\r\n" . preg_quote(base64_encode('<image data>'), '~') . "\r\n\r\n" . '--\\1--' . "\r\n" . "\r\n\r\n" . '--' . $boundary . '--' . "\r\n" . '$~D', $message->toString());
}
/**
* Embed files into message
* Note: Is better to use the Message object directly
*
* @param string Path or dynamic
* @param string|mixed Path to file or file content when type is dynamic
* @param string File name
* @param string Mime type of image
* @return int
*/
public function embed($type, $file = '', $name = null, $content_type = null)
{
switch ($type) {
case 'path':
if ($file == '') {
return;
}
return $this->swMessage->embed(Swift_Image::fromPath($file));
break;
case 'dynamic':
if ($file == null || $file == '') {
return;
}
return $this->swMessage->embed(Swift_Image::newInstance($file, $name, $content_type));
}
}
/**
* 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');
}
}
/**
* Recursively embed all images in the array into the message
* @param \Swift_Message $message
* @param array $params
* @return array $params
*/
private function embedImages(&$message, &$params)
{
// loop through the array
foreach ($params as $key => $value) {
// if the current value is an array
if (is_array($value)) {
// search for more images deeper in the arrays
$value = $this->embedImages($message, $value);
$params[$key] = $value;
// if the current value is an existing file from the image-folder, embed it
} elseif (is_string($value)) {
if (is_file($value)) {
// check if the file is from an allowed folder
if ($this->templateProvider->isFileAllowed($value) !== false) {
$encodedImage = $this->cachedEmbedImage($value);
if ($encodedImage != null) {
$id = $message->embed($encodedImage);
$params[$key] = $id;
}
}
// the $filePath isn't a regular file
} else {
// add a null-value to the cache for this path, so we don't try again.
$this->imageCache[$value] = null;
}
//if the current value is a generated image
} elseif (is_resource($value) && stripos(get_resource_type($value), "gd") == 0) {
// get the image-data as string
ob_start();
imagepng($value);
$imageData = ob_get_clean();
// encode the image
$encodedImage = \Swift_Image::newInstance($imageData, "generatedImage" . md5($imageData));
$id = $message->embed($encodedImage);
$params[$key] = $id;
} else {
// don't do anything
}
}
// remove duplicate-attachments
$message->setChildren(array_unique($message->getChildren()));
return $params;
}
/**
* Embed a file from a string. Returns the CID id.
*
* @param $fileContent
* @param $filename
* @param string $mimeType
* @return string
*/
public function embedFromStream($fileContent, $filename, $mimeType = 'image/jpeg')
{
return $this->messageInstance->embed(\Swift_Image::newInstance($fileContent, $filename, $mimeType));
}
/**
* Process inline images..
*
* @param Swift_Message $m
* The message which inline images are to be added to.
* @param array $images
* The images which are to be added as inline images to the provided
* message.
*/
private function embed(Swift_Message $m, array $images)
{
// Iterate through each array element.
foreach ($images as $image) {
if ($image instanceof \stdClass) {
// Validate required fields.
if (empty($image->uri) || empty($image->filename) || empty($image->filemime) || empty($image->cid)) {
continue;
}
// Keep track of the 'cid' assigned to the embedded image.
$cid = NULL;
// Get image data.
if (UrlHelper::isValid($image->uri, TRUE)) {
$content = file_get_contents($image->uri);
} else {
$content = file_get_contents(\Drupal::service('file_system')->realpath($image->uri));
}
$filename = $image->filename;
$filemime = $image->filemime;
// Embed image.
$cid = $m->embed(Swift_Image::newInstance($content, $filename, $filemime));
// The provided 'cid' needs to be replaced with the 'cid' returned
// by the Swift Mailer library.
$body = $m->getBody();
$body = preg_replace('/cid.*' . $image->cid . '/', $cid, $body);
$m->setBody($body);
}
}
}
/**
* Process inline images..
*
* @param \Swift_Message $m
* The message which inline images are to be added to.
* @param array $images
* The images which are to be added as inline images to the provided
* message.
*/
protected function embed(\Swift_Message $m, array $images)
{
// Iterate through each array element.
foreach ($images as $image) {
if ($image instanceof \stdClass) {
// Validate required fields.
if (empty($image->uri) || empty($image->filename) || empty($image->filemime) || empty($image->cid)) {
continue;
}
// Get image data.
if (valid_url($image->uri, true)) {
$content = file_get_contents($image->uri);
} else {
$content = file_get_contents(drupal_realpath($image->uri));
}
$filename = $image->filename;
$filemime = $image->filemime;
// Embed image.
$cid = $m->embed(\Swift_Image::newInstance($content, $filename, $filemime));
// The provided 'cid' needs to be replaced with the 'cid' returned
// by the Swift Mailer library.
$body = $m->getBody();
$body = preg_replace('/cid.*' . $image->cid . '/', $cid, $body);
$m->setBody($body);
}
}
}
/**
* Add embedded HTML images (image dir)
*
* @access protected
* @param Swift_Message $message
*/
protected function add_html_images(&$message)
{
$path = Config::$email_directory . '/media/';
if (!file_exists($path)) {
return;
}
$html_body = $message->getBody();
if ($handle = opendir($path)) {
while (false !== ($file = readdir($handle))) {
if (substr($file, 0, 1) != '.' && strpos($html_body, $file) !== false) {
$swift_image = \Swift_Image::newInstance(file_get_contents($path . $file), $file, Util::mime_type($path . $file));
$html_body = str_replace($file, $message->embed($swift_image), $html_body);
}
}
}
$message->setBody($html_body);
closedir($handle);
}
