/**
* Recursively embed all images in the array into the message
* @param \Swift_Message $message
* @param array $params
* @return array $params
*/
private function embedImages(&$message, &$params)
{
// loop throug the array
foreach ($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 $filePath isn't a regular file
} else {
// ignore the imageDir itself, but log all other directories and symlinks that were not embeded
if ($value != $this->templateProvider->getTemplateImageDir()) {
$this->logger->info("'{$value}' is not a regular file and will not be embeded in the email.");
}
// 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;
}
