+ Integer.toHexString(expected)
              + " got: "
              + Integer.toHexString(verification));
    }
  }

  static final Funnel<Object> BAD_FUNNEL =
      new Funnel<Object>() {
        @Override
        public void funnel(Object object, PrimitiveSink bytePrimitiveSink) {
          bytePrimitiveSink.putInt(object.hashCode());
        }
      };

  enum RandomHasherAction {

  internal var hasFailure: Boolean = false
    private set

  internal val connection: RealConnection
    get() = codec.carrier as? RealConnection ?: error("no connection for CONNECT tunnels")

  internal val isCoalescedConnection: Boolean
    get() = finder.routePlanner.address.url.host != codec.carrier.route.address.url.host

  @Throws(IOException::class)
  fun writeRequestHeaders(request: Request) {

    replaceWith = ReplaceWith(expression = "socketAddress"),
    level = DeprecationLevel.ERROR,
  )
  fun socketAddress(): InetSocketAddress = socketAddress

  /**
   * Returns true if this route tunnels HTTPS or HTTP/2 through an HTTP proxy.
   * See [RFC 2817, Section 5.2][rfc_2817].
   *
   * [rfc_2817]: http://www.ietf.org/rfc/rfc2817.txt
   */
  fun requiresTunnel(): Boolean {

    when (socketPolicy) {
      SocketPolicy.EXPECT_CONTINUE, SocketPolicy.CONTINUE_ALWAYS -> {
        result.add100Continue()
        KeepOpen
      }
      SocketPolicy.UPGRADE_TO_SSL_AT_END -> {
        result.inTunnel()
        KeepOpen
      }
      else -> wrapSocketPolicy()
    }
  result.throttleBody(throttleBytesPerPeriod, getThrottlePeriod(MILLISECONDS), MILLISECONDS)
  result.bodyDelay(getBodyDelay(MILLISECONDS), MILLISECONDS)

  //  "decipher only",
  //  "any",
  //  "server auth",
  //  "client auth",
  //  "code signing",
  //  "email protection",
  //  "s/mime",
  //  "ipsec end system",
  //  "ipsec tunnel",
  //  "ipsec user",
  //  "timestamping",
  //  "ocsp signing",
  //  "microsoft sgc",
  //  "netscape sgc"
  // +listType=atomic
  repeated string usages = 5;

    HashFn hf =
        new HashFn() {
          @Override
          public byte[] hash(byte[] input, int seed) {
            Hasher hasher = murmur3_32(seed).newHasher();
            Funnels.byteArrayFunnel().funnel(input, hasher);
            return hasher.hash().asBytes();
          }
        };
    // Murmur3A, MurmurHash3 for x86, 32-bit (MurmurHash3_x86_32)
    // https://github.com/aappleby/smhasher/blob/master/src/main.cpp

    assertThat(get.headers["Proxy-Authorization"]).isNull()
  }

  // Don't disconnect after building a tunnel with CONNECT
  // http://code.google.com/p/android/issues/detail?id=37221
  @Test
  fun proxyWithConnectionClose() {
    server.useHttps(handshakeCertificates.sslSocketFactory())
    server.enqueue(MockResponse(inTunnel = true))
    server.enqueue(MockResponse(body = "this response comes via a proxy"))
    client =

 * [newFixedLengthSource(0)][newFixedLengthSource] and may skip reading and closing that source.
 */
class Http1ExchangeCodec(
  /** The client that configures this stream. May be null for HTTPS proxy tunnels. */
  private val client: OkHttpClient?,
  override val carrier: ExchangeCodec.Carrier,
  private val source: BufferedSource,
  private val sink: BufferedSink,
) : ExchangeCodec {
  private var state = STATE_IDLE

  //  "cert sign", "crl sign", "encipher only", "decipher only", "any",
  //  "server auth", "client auth",
  //  "code signing", "email protection", "s/mime",
  //  "ipsec end system", "ipsec tunnel", "ipsec user",
  //  "timestamping", "ocsp signing", "microsoft sgc", "netscape sgc"
  // +listType=atomic
  repeated string usages = 5;

    enableTlsWithTunnel()
    server.enqueue(
      MockResponse.Builder()
        .inTunnel()
        .code(407)
        .addHeader("Proxy-Authenticate: Basic realm=\"localhost\"")
        .addHeader("Connection: close")
        .build(),
    )
    server.enqueue(
      MockResponse.Builder()
        .inTunnel()
        .build(),
    )
    server.enqueue(MockResponse())
    client =