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| Name | Lines | Functions and Methods | CRAP | Classes and Traits | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| AvatarUpdater | 100.00% | 25 / 25 | 100.00% | 4 / 4 | 14 | 100.00% | 1 / 1 | |||
| __construct | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | |||||
| update | 100.00% | 8 / 8 | 100.00% | 1 / 1 | 6 | |||||
| isGooglePicture | 100.00% | 2 / 2 | 100.00% | 1 / 1 | 3 | |||||
| fetch | 100.00% | 14 / 14 | 100.00% | 1 / 1 | 4 | |||||
| 1 | <?php | |
| 2 | ||
| 3 | declare(strict_types=1); | |
| 4 | ||
| 5 | namespace App\Service; | |
| 6 | ||
| 7 | use App\Entity\User; | |
| 8 | use Doctrine\ORM\EntityManagerInterface; | |
| 9 | use Psr\Log\LoggerInterface; | |
| 10 | use Symfony\Contracts\HttpClient\Exception\ExceptionInterface; | |
| 11 | use Symfony\Contracts\HttpClient\HttpClientInterface; | |
| 12 | ||
| 13 | /** | |
| 14 | * Keeps the user's Google profile picture (the ID token's "picture" claim) as a 100 px JPEG data: | |
| 15 | * URI, as 4e-website's AvatarHelper: pages show it without loading anything from Google. It is | |
| 16 | * fetched again only when the URL changes; a failure keeps the old picture and never stops a sign-in. | |
| 17 | */ | |
| 18 | final readonly class AvatarUpdater | |
| 19 | { | |
| 20 | public const int SIZE = 100; | |
| 21 | ||
| 22 | /** Google serves profile pictures from here; nothing else is fetched. */ | |
| 23 | private const string PICTURE_HOST = '.googleusercontent.com'; | |
| 24 | ||
| 25 | private const int MAX_BYTES = 2_000_000; | |
| 26 | ||
| 27 | public function __construct( | |
| 28 | private HttpClientInterface $httpClient, | |
| 29 | private EntityManagerInterface $entityManager, | |
| 30 | private LoggerInterface $logger, | |
| 31 | ) { | |
| 32 | } | |
| 33 | ||
| 34 | public function update(User $user, mixed $pictureUrl): void | |
| 35 | { | |
| 36 | if (!\is_string($pictureUrl) || !$this->isGooglePicture($pictureUrl) | |
| 37 | || ($pictureUrl === $user->getAvatarSource() && null !== $user->getAvatar()) | |
| 38 | ) { | |
| 39 | return; | |
| 40 | } | |
| 41 | ||
| 42 | $avatar = $this->fetch($pictureUrl); | |
| 43 | if (null === $avatar) { | |
| 44 | return; | |
| 45 | } | |
| 46 | ||
| 47 | $user->setAvatar($avatar, $pictureUrl); | |
| 48 | $this->entityManager->flush(); | |
| 49 | } | |
| 50 | ||
| 51 | private function isGooglePicture(string $url): bool | |
| 52 | { | |
| 53 | $host = \parse_url($url, \PHP_URL_HOST); | |
| 54 | ||
| 55 | return \str_starts_with($url, 'https://') && \is_string($host) && \str_ends_with($host, self::PICTURE_HOST); | |
| 56 | } | |
| 57 | ||
| 58 | /** The picture as a data: URI, or null (logged) when it can't be fetched or read. */ | |
| 59 | private function fetch(string $url): ?string | |
| 60 | { | |
| 61 | try { | |
| 62 | $content = $this->httpClient->request('GET', $url, ['timeout' => 5, 'max_redirects' => 0])->getContent(); | |
| 63 | } catch (ExceptionInterface $exception) { | |
| 64 | $this->logger->warning('Fetching the Google profile picture failed: {message}', ['message' => $exception->getMessage()]); | |
| 65 | ||
| 66 | return null; | |
| 67 | } | |
| 68 | ||
| 69 | $image = \strlen($content) <= self::MAX_BYTES ? @\imagecreatefromstring($content) : false; | |
| 70 | if (false === $image) { | |
| 71 | $this->logger->warning('The Google profile picture is not an image.'); | |
| 72 | ||
| 73 | return null; | |
| 74 | } | |
| 75 | ||
| 76 | // A centered square, scaled down | |
| 77 | $side = \min(\imagesx($image), \imagesy($image)); | |
| 78 | $square = \imagecreatetruecolor(self::SIZE, self::SIZE); | |
| 79 | \imagecopyresampled($square, $image, 0, 0, \intdiv(\imagesx($image) - $side, 2), \intdiv(\imagesy($image) - $side, 2), self::SIZE, self::SIZE, $side, $side); | |
| 80 | ||
| 81 | \ob_start(); | |
| 82 | \imagejpeg($square, null, 85); | |
| 83 | ||
| 84 | return 'data:image/jpeg;base64,'.\base64_encode((string) \ob_get_clean()); | |
| 85 | } | |
| 86 | } |