* limitations under the License.
 */
package okhttp3.internal.proxy

import java.io.IOException
import java.net.Proxy
import java.net.ProxySelector
import java.net.SocketAddress
import java.net.URI

/**
 * A proxy selector that always returns the [Proxy.NO_PROXY].
 */
object NullProxySelector : ProxySelector() {
  override fun select(uri: URI?): List<Proxy> {
    requireNotNull(uri) { "uri must not be null" }

    call: Call,
    inetSocketAddress: InetSocketAddress,
    proxy: Proxy,
    protocol: Protocol?,
  ) {
    logWithTime("connectEnd: $protocol")

    delegate.connectEnd(call, inetSocketAddress, proxy, protocol)
  }

  override fun connectFailed(
    call: Call,
    inetSocketAddress: InetSocketAddress,
    proxy: Proxy,
    protocol: Protocol?,
    ioe: IOException,
  ) {

  @Throws(IOException::class)
  private fun connectSocket() {
    val rawSocket =
      when (route.proxy.type()) {
        Proxy.Type.DIRECT, Proxy.Type.HTTP -> route.address.socketFactory.createSocket()!!
        else -> Socket(route.proxy)
      }
    this.rawSocket = rawSocket

    // Handle the race where cancel() precedes connectSocket(). We don't want to miss a cancel.

    assertThat(connect1.headers["Proxy-Authorization"]).isNull()
    val connect2 = server.takeRequest()
    assertThat(connect2.requestLine).isEqualTo("CONNECT android.com:443 HTTP/1.1")
    assertThat(connect2.headers["Proxy-Authorization"]).isEqualTo("password")
    val get = server.takeRequest()
    assertThat(get.requestLine).isEqualTo("GET /foo HTTP/1.1")
    assertThat(get.headers["Proxy-Authorization"]).isNull()
  }

    }

    return Selection(routes)
  }

  /** Prepares the proxy servers to try. */
  private fun resetNextProxy(
    url: HttpUrl,
    proxy: Proxy?,
  ) {
    fun selectProxies(): List<Proxy> {
      // If the user specifies a proxy, try that and only that.
      if (proxy != null) return listOf(proxy)

      // If the URI lacks a host (as in "http://</"), don't call the ProxySelector.

        .isEqualTo("Unexpected char 0xe9 at 4 in Cookie value")
    }
    assertFailsWith<IllegalArgumentException> {
      Headers.Builder().add("Proxy-Authorization", "valué1")
    }.also { expected ->
      assertThat(expected.message)
        .isEqualTo("Unexpected char 0xe9 at 4 in Proxy-Authorization value")
    }
    assertFailsWith<IllegalArgumentException> {
      Headers.Builder().add("Set-Cookie", "valué1")

 *    to use `H2_PRIOR_KNOWLEDGE` but the URL's scheme is `https:`.
 *  * Preemptive proxy authentication failed.
 *
 * Planning failures are not necessarily fatal. For example, even if we can't DNS lookup the first
 * proxy in a list, looking up a subsequent one may succeed.
 */
internal class FailedPlan(e: Throwable) : RoutePlanner.Plan {

    server.enqueue(MockResponse.Builder().body("abc").build())
    val client =
      clientTestRule.newClientBuilder()
        .proxy(socksProxy.proxy())
        .build()
    val url =
      server.url("/")
        .newBuilder()
        .host(SocksProxy.HOSTNAME_THAT_ONLY_THE_PROXY_KNOWS)
        .build()

   * Returns the RFC 7235 authorization challenges appropriate for this response's code. If the
   * response code is 401 unauthorized, this returns the "WWW-Authenticate" challenges. If the
   * response code is 407 proxy unauthorized, this returns the "Proxy-Authenticate" challenges.
   * Otherwise this returns an empty list of challenges.
   *
   * If a challenge uses the `token68` variant instead of auth params, there is exactly one

    }

    @Override public void connectEnd(
        Call call, InetSocketAddress inetSocketAddress, Proxy proxy, Protocol protocol) {
      printEvent("connectEnd");
    }

    @Override public void connectFailed(Call call, InetSocketAddress inetSocketAddress, Proxy proxy,
        Protocol protocol, IOException ioe) {
      printEvent("connectFailed");
    }