[Serializer] Don't pass null to preg_match()

Signed-off-by: Alexander M. Turek <me@derrabus.de>

Author: derrabus

Normalizer/DataUriNormalizer.php

@@ -109,13 +109,13 @@ public function supportsNormalization($data, $format = null)
  */
  public function denormalize($data, $type, $format = null, array $context = [])
  {
- if (!preg_match('/^data:([a-z0-9][a-z0-9\!\#\$\&\-\^\_\+\.]{0,126}\/[a-z0-9][a-z0-9\!\#\$\&\-\^\_\+\.]{0,126}(;[a-z0-9\-]+\=[a-z0-9\-]+)?)?(;base64)?,[a-z0-9\!\$\&\\\'\,\(\)\*\+\,\;\=\-\.\_\~\:\@\/\?\%\s]*\s*$/i', $data)) {
+ if (null === $data || !preg_match('/^data:([a-z0-9][a-z0-9\!\#\$\&\-\^\_\+\.]{0,126}\/[a-z0-9][a-z0-9\!\#\$\&\-\^\_\+\.]{0,126}(;[a-z0-9\-]+\=[a-z0-9\-]+)?)?(;base64)?,[a-z0-9\!\$\&\\\'\,\(\)\*\+\,\;\=\-\.\_\~\:\@\/\?\%\s]*\s*$/i', $data)) {
  throw new NotNormalizableValueException('The provided "data:" URI is not valid.');
  }
 
  try {
  switch ($type) {
- case 'Symfony\Component\HttpFoundation\File\File':
+ case File::class:
  return new File($data, false);
 
  case 'SplFileObject':

Tests/Normalizer/DataUriNormalizerTest.php

@@ -139,6 +139,7 @@ public function invalidUriProvider()
  ['data:text/html;charset,%3Ch1%3EHello!%3C%2Fh1%3E'],
  ['data:base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQAQMAAAAlPW0iAAAABlBMVEUAAAD///+l2Z/dAAAAM0lEQVR4nGP4/5/h/1+G/58ZDrAz3D/McH8yw83NDDeNGe4Ug9C9zwz3gVLMDA/A6P9/AFGGFyjOXZtQAAAAAElFTkSuQmCC'],
  [''],
+ [null],
  ['http://wikipedia.org'],
  ['base64'],
  ['iVBORw0KGgoAAAANSUhEUgAAABAAAAAQAQMAAAAlPW0iAAAABlBMVEUAAAD///+l2Z/dAAAAM0lEQVR4nGP4/5/h/1+G/58ZDrAz3D/McH8yw83NDDeNGe4Ug9C9zwz3gVLMDA/A6P9/AFGGFyjOXZtQAAAAAElFTkSuQmCC'],