/**
* Validates file size
* @param Entity\File $file
*/
public function validateFile(Entity\File $file, $sourceFilePath = null)
{
if (!$file instanceof Entity\Image) {
return;
}
if (is_null($sourceFilePath)) {
return;
}
$info = new ImageInfo($sourceFilePath);
if ($info->hasError()) {
throw new Exception\RuntimeException($info->getError());
}
// Assumes memory_limit is in MB
// "-1" means no limit
$memoryLimit = (int) ini_get('memory_limit');
if ($memoryLimit < 0) {
return;
}
$memoryLeft = (int) $memoryLimit * 1024 * 1024 - memory_get_usage();
// Should use real usage or not?
// Read data from image info, default bitsPerChannel to 8, channel count to 4
$memoryRequired = $info->getWidth() * $info->getHeight() * ($info->getBits() ?: 8) * ($info->getChannels() ?: 4) * 2;
if ($memoryRequired > $memoryLeft) {
$message = "Not enough memory [{$memoryLeft} bytes] to resize the image, required amount [{$memoryRequired} bytes]";
throw new Exception\InsufficientSystemResources(self::EXCEPTION_MESSAGE_KEY, $message);
}
}
