annotate vendor/symfony/serializer/Normalizer/DataUriNormalizer.php @ 19:fa3358dc1485 tip

Add ndrum files
author Chris Cannam
date Wed, 28 Aug 2019 13:14:47 +0100
parents 129ea1e6d783
children
rev   line source
Chris@0 1 <?php
Chris@0 2
Chris@0 3 /*
Chris@0 4 * This file is part of the Symfony package.
Chris@0 5 *
Chris@0 6 * (c) Fabien Potencier <fabien@symfony.com>
Chris@0 7 *
Chris@0 8 * For the full copyright and license information, please view the LICENSE
Chris@0 9 * file that was distributed with this source code.
Chris@0 10 */
Chris@0 11
Chris@0 12 namespace Symfony\Component\Serializer\Normalizer;
Chris@0 13
Chris@0 14 use Symfony\Component\HttpFoundation\File\File;
Chris@0 15 use Symfony\Component\HttpFoundation\File\MimeType\MimeTypeGuesser;
Chris@0 16 use Symfony\Component\HttpFoundation\File\MimeType\MimeTypeGuesserInterface;
Chris@0 17 use Symfony\Component\Serializer\Exception\InvalidArgumentException;
Chris@14 18 use Symfony\Component\Serializer\Exception\NotNormalizableValueException;
Chris@0 19
Chris@0 20 /**
Chris@0 21 * Normalizes an {@see \SplFileInfo} object to a data URI.
Chris@0 22 * Denormalizes a data URI to a {@see \SplFileObject} object.
Chris@0 23 *
Chris@0 24 * @author Kévin Dunglas <dunglas@gmail.com>
Chris@0 25 */
Chris@0 26 class DataUriNormalizer implements NormalizerInterface, DenormalizerInterface
Chris@0 27 {
Chris@17 28 private static $supportedTypes = [
Chris@14 29 \SplFileInfo::class => true,
Chris@14 30 \SplFileObject::class => true,
Chris@14 31 File::class => true,
Chris@17 32 ];
Chris@14 33
Chris@0 34 /**
Chris@0 35 * @var MimeTypeGuesserInterface
Chris@0 36 */
Chris@0 37 private $mimeTypeGuesser;
Chris@0 38
Chris@0 39 public function __construct(MimeTypeGuesserInterface $mimeTypeGuesser = null)
Chris@0 40 {
Chris@0 41 if (null === $mimeTypeGuesser && class_exists('Symfony\Component\HttpFoundation\File\MimeType\MimeTypeGuesser')) {
Chris@0 42 $mimeTypeGuesser = MimeTypeGuesser::getInstance();
Chris@0 43 }
Chris@0 44
Chris@0 45 $this->mimeTypeGuesser = $mimeTypeGuesser;
Chris@0 46 }
Chris@0 47
Chris@0 48 /**
Chris@0 49 * {@inheritdoc}
Chris@0 50 */
Chris@17 51 public function normalize($object, $format = null, array $context = [])
Chris@0 52 {
Chris@0 53 if (!$object instanceof \SplFileInfo) {
Chris@0 54 throw new InvalidArgumentException('The object must be an instance of "\SplFileInfo".');
Chris@0 55 }
Chris@0 56
Chris@0 57 $mimeType = $this->getMimeType($object);
Chris@0 58 $splFileObject = $this->extractSplFileObject($object);
Chris@0 59
Chris@0 60 $data = '';
Chris@0 61
Chris@0 62 $splFileObject->rewind();
Chris@0 63 while (!$splFileObject->eof()) {
Chris@0 64 $data .= $splFileObject->fgets();
Chris@0 65 }
Chris@0 66
Chris@0 67 if ('text' === explode('/', $mimeType, 2)[0]) {
Chris@0 68 return sprintf('data:%s,%s', $mimeType, rawurlencode($data));
Chris@0 69 }
Chris@0 70
Chris@0 71 return sprintf('data:%s;base64,%s', $mimeType, base64_encode($data));
Chris@0 72 }
Chris@0 73
Chris@0 74 /**
Chris@0 75 * {@inheritdoc}
Chris@0 76 */
Chris@0 77 public function supportsNormalization($data, $format = null)
Chris@0 78 {
Chris@0 79 return $data instanceof \SplFileInfo;
Chris@0 80 }
Chris@0 81
Chris@0 82 /**
Chris@0 83 * {@inheritdoc}
Chris@0 84 *
Chris@0 85 * Regex adapted from Brian Grinstead code.
Chris@0 86 *
Chris@0 87 * @see https://gist.github.com/bgrins/6194623
Chris@14 88 *
Chris@14 89 * @throws InvalidArgumentException
Chris@14 90 * @throws NotNormalizableValueException
Chris@0 91 */
Chris@17 92 public function denormalize($data, $class, $format = null, array $context = [])
Chris@0 93 {
Chris@0 94 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', $data)) {
Chris@14 95 throw new NotNormalizableValueException('The provided "data:" URI is not valid.');
Chris@0 96 }
Chris@0 97
Chris@0 98 try {
Chris@0 99 switch ($class) {
Chris@0 100 case 'Symfony\Component\HttpFoundation\File\File':
Chris@0 101 return new File($data, false);
Chris@0 102
Chris@0 103 case 'SplFileObject':
Chris@0 104 case 'SplFileInfo':
Chris@0 105 return new \SplFileObject($data);
Chris@0 106 }
Chris@0 107 } catch (\RuntimeException $exception) {
Chris@14 108 throw new NotNormalizableValueException($exception->getMessage(), $exception->getCode(), $exception);
Chris@0 109 }
Chris@0 110
Chris@0 111 throw new InvalidArgumentException(sprintf('The class parameter "%s" is not supported. It must be one of "SplFileInfo", "SplFileObject" or "Symfony\Component\HttpFoundation\File\File".', $class));
Chris@0 112 }
Chris@0 113
Chris@0 114 /**
Chris@0 115 * {@inheritdoc}
Chris@0 116 */
Chris@0 117 public function supportsDenormalization($data, $type, $format = null)
Chris@0 118 {
Chris@14 119 return isset(self::$supportedTypes[$type]);
Chris@0 120 }
Chris@0 121
Chris@0 122 /**
Chris@0 123 * Gets the mime type of the object. Defaults to application/octet-stream.
Chris@0 124 *
Chris@0 125 * @param \SplFileInfo $object
Chris@0 126 *
Chris@0 127 * @return string
Chris@0 128 */
Chris@0 129 private function getMimeType(\SplFileInfo $object)
Chris@0 130 {
Chris@0 131 if ($object instanceof File) {
Chris@0 132 return $object->getMimeType();
Chris@0 133 }
Chris@0 134
Chris@0 135 if ($this->mimeTypeGuesser && $mimeType = $this->mimeTypeGuesser->guess($object->getPathname())) {
Chris@0 136 return $mimeType;
Chris@0 137 }
Chris@0 138
Chris@0 139 return 'application/octet-stream';
Chris@0 140 }
Chris@0 141
Chris@0 142 /**
Chris@0 143 * Returns the \SplFileObject instance associated with the given \SplFileInfo instance.
Chris@0 144 *
Chris@0 145 * @param \SplFileInfo $object
Chris@0 146 *
Chris@0 147 * @return \SplFileObject
Chris@0 148 */
Chris@0 149 private function extractSplFileObject(\SplFileInfo $object)
Chris@0 150 {
Chris@0 151 if ($object instanceof \SplFileObject) {
Chris@0 152 return $object;
Chris@0 153 }
Chris@0 154
Chris@0 155 return $object->openFile();
Chris@0 156 }
Chris@0 157 }