.build()
  }

  internal fun lookupDecompressor(encoding: String): DecompressionAlgorithm? =
    algorithms.find {
      it.encoding.equals(encoding, ignoreCase = true)
    }

  /**
   * A decompression algorithm such as Gzip. Must provide the Accept-Encoding value and decompress a Source.
   */
  interface DecompressionAlgorithm {
    val encoding: String

 * WWW-Authenticate: Digest ,foo
 * ```
 */
fun Headers.parseChallenges(headerName: String): List<Challenge> {
  val result = mutableListOf<Challenge>()
  for (h in 0 until size) {
    if (headerName.equals(name(h), ignoreCase = true)) {
      val header = Buffer().writeUtf8(value(h))
      try {
        header.readChallengeHeader(result)
      } catch (e: EOFException) {
        Platform.get().log("Unable to parse challenge", Platform.WARN, e)

    }

    private fun isDot(input: String): Boolean = input == "." || input.equals("%2e", ignoreCase = true)

    private fun isDotDot(input: String): Boolean =
      input == ".." ||
        input.equals("%2e.", ignoreCase = true) ||
        input.equals(".%2e", ignoreCase = true) ||
        input.equals("%2e%2e", ignoreCase = true)

    /**

    val url = request.url
    val proxyAuthorization = response.code == 407
    val proxy = route?.proxy ?: Proxy.NO_PROXY

    for (challenge in challenges) {
      if (!"Basic".equals(challenge.scheme, ignoreCase = true)) {
        continue
      }

      val dns = route?.address?.dns ?: defaultDns
      val auth =
        if (proxyAuthorization) {
          val proxyAddress = proxy.address() as InetSocketAddress

    val responseBuilder =
      networkResponse
        .newBuilder()
        .request(networkRequest)

    if (transparentGzip &&
      "gzip".equals(networkResponse.header("Content-Encoding"), ignoreCase = true) &&
      networkResponse.promisesBody()
    ) {
      val responseBody = networkResponse.body
      if (responseBody != null) {
        val gzipSource = GzipSource(responseBody.source())

  private val headersReader = HeadersReader(socket.source)

  private val Response.isChunked: Boolean
    get() = "chunked".equals(header("Transfer-Encoding"), ignoreCase = true)

  private val Request.isChunked: Boolean
    get() = "chunked".equals(header("Transfer-Encoding"), ignoreCase = true)

  /**
   * Trailers received when the response body became exhausted.
   *

   * such a parameter.
   */
  fun parameter(name: String): String? {
    for (i in parameterNamesAndValues.indices step 2) {
      if (parameterNamesAndValues[i].equals(name, ignoreCase = true)) {
        return parameterNamesAndValues[i + 1]
      }
    }
    return null
  }

  @JvmName("-deprecated_type")
  @Deprecated(
    message = "moved to val",

          val domainName = fromSource.readUtf8(domainNameLength.toLong())
          // Resolve HOSTNAME_THAT_ONLY_THE_PROXY_KNOWS to localhost.
          when {
            domainName.equals(HOSTNAME_THAT_ONLY_THE_PROXY_KNOWS, ignoreCase = true) -> {
              InetAddress.getByName("localhost")
            }
            else -> InetAddress.getByName(domainName)
          }
        }

    if (!"Upgrade".equals(headerConnection, ignoreCase = true)) {
      throw ProtocolException(
        "Expected 'Connection' header value 'Upgrade' but was '$headerConnection'",
      )
    }

    val headerUpgrade = response.header("Upgrade")
    if (!"websocket".equals(headerUpgrade, ignoreCase = true)) {
      throw ProtocolException(

   */
  private fun decodeLabel(
    string: String,
    pos: Int,
    limit: Int,
    result: Buffer,
  ): Boolean {
    if (!string.regionMatches(pos, PREFIX_STRING, 0, 4, ignoreCase = true)) {
      result.writeUtf8(string, pos, limit)
      return true
    }

    var pos = pos + 4 // 'xn--'.size.