detectNSFWFromUrl method

Future<NsfwResult?> detectNSFWFromUrl(Uri url)

Detects NSFW content from a URL.

Downloads the image from url and detects NSFW content. Follows HTTP redirects. The timeout for the HTTP request is 10 seconds. Throws NsfwDetectorException if the request times out or returns a non-200 status code.

Implementation

Future<NsfwResult?> detectNSFWFromUrl(Uri url) async {
  if (_isClosed) throw StateError('NsfwDetector has been closed.');

  final client = HttpClient();
  client.connectionTimeout = const Duration(seconds: 10);

  try {
    final request = await client.getUrl(url);
    final response = await request.close().timeout(
      const Duration(seconds: 10),
      onTimeout: () => throw TimeoutException('HTTP request timed out after 10 seconds.'),
    );

    if (response.statusCode != HttpStatus.ok) {
      throw HttpException('HTTP request failed with status: ${response.statusCode}');
    }

    final bytes = await consolidateHttpClientResponseBytes(response);
    return await detectNSFWFromBytes(bytes);
  } catch (error, stackTrace) {
    if (error is NsfwDetectorException) {
      rethrow;
    }
    throw NsfwDetectorException(
      'Failed to detect NSFW content from URL: $url',
      cause: error,
      stackTrace: stackTrace,
    );
  } finally {
    client.close();
  }
}