* HcHttpClient is an HTTP client implementation that extends AbstractCrawlerClient.
 * It provides various configurations and settings for making HTTP requests, including
 * connection timeouts, proxy settings, user agent, request headers, cookie management,
 * and SSL configurations. The client also supports robots.txt parsing and form-based
 * authentication schemes.
 *
 * <p>Key properties and configurations:</p>
 * <ul>

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.internal.http

import java.io.IOException
import java.net.ProtocolException
import okhttp3.Headers
import okhttp3.Interceptor
import okhttp3.Response
import okhttp3.TrailersSource
import okhttp3.internal.UnreadableResponseBody
import okhttp3.internal.http2.ConnectionShutdownException
import okhttp3.internal.skipAll

        System.nanoTime(),
        call,
      ),
    )

  override fun requestHeadersEnd(
    call: Call,
    request: Request,
  ) = onEvent(RequestHeadersEnd(System.nanoTime(), call, request.headers.byteCount()))

  override fun requestBodyStart(call: Call) =
    onEvent(
      RequestBodyStart(
        System.nanoTime(),
        call,
      ),
    )

  override fun requestBodyEnd(

import mockwebserver3.MockWebServer;
import okhttp3.Headers;
import org.junit.Test;

import java.io.IOException;

/**
 * Unit test for simple App.
 */
public class AppTest {
  private final MockWebServer mockWebServer = new MockWebServer();

  @Test
  public void testApp() throws IOException {
    mockWebServer.enqueue(new MockResponse(200, Headers.of(), "Hello, Maven!"));
    mockWebServer.start();

		// If request header key is not in ignored headers, then add it.
		if _, ok := ignoredStreamingHeaders[http.CanonicalHeaderKey(k)]; !ok {
			headerMap[strings.ToLower(k)] = vv
		}
	}

	// Get header keys.
	headers := []string{"host"}
	for k := range headerMap {
		headers = append(headers, k)
	}
	sort.Strings(headers)

	// Get canonical headers.
	var buf bytes.Buffer
	for _, k := range headers {

    response = client.get("/users/me", headers={"key": "secret"})
    assert response.status_code == 200, response.text
    assert response.json() == {"username": "secret"}


def test_security_api_key_no_key():
    response = client.get("/users/me")
    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}
    assert response.headers["WWW-Authenticate"] == "APIKey"

    response = client.get("/users/me", headers={"key": "secret"})
    assert response.status_code == 200, response.text
    assert response.json() == {"username": "secret"}


def test_security_api_key_no_key():
    response = client.get("/users/me")
    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}
    assert response.headers["WWW-Authenticate"] == "APIKey"

    client = TestClient(app)
    response = client.get("/users/me")
    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}
    assert response.headers["WWW-Authenticate"] == "APIKey"


def test_openapi_schema():
    client = TestClient(app)
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text

* <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-For" class="external-link" target="_blank">X-Forwarded-For</a>
* <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-Proto" class="external-link" target="_blank">X-Forwarded-Proto</a>
* <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-Host" class="external-link" target="_blank">X-Forwarded-Host</a>

}

// IsObjectLockRequested returns true if legal hold or object lock retention headers are requested.
func IsObjectLockRequested(h http.Header) bool {
	return IsObjectLockLegalHoldRequested(h) || IsObjectLockRetentionRequested(h)
}

// ParseObjectLockRetentionHeaders parses http headers to extract retention mode and retention date