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

/**
 * Versions of TLS that can be offered when negotiating a secure socket. See
 * [javax.net.ssl.SSLSocket.setEnabledProtocols].
 */
enum class TlsVersion(
  @get:JvmName("javaName") val javaName: String,
) {
  TLS_1_3("TLSv1.3"), // 2016.
  TLS_1_2("TLSv1.2"), // 2008.

   */
  fun cancel()

  fun interface Factory {
    /**
     * Creates a new event source and immediately returns it. Creating an event source initiates an
     * asynchronous process to connect the socket. Once that succeeds or fails, `listener` will be
     * notified. The caller must cancel the returned event source when it is no longer in use.
     */
    fun newEventSource(
      request: Request,

  private val fastFallback: Boolean,
) {
  // State for negotiating the next proxy to use.
  private var proxies = emptyList<Proxy>()
  private var nextProxyIndex: Int = 0

  // State for negotiating the next socket address to use.
  private var inetSocketAddresses = emptyList<InetSocketAddress>()

  // State for negotiating failed routes
  private val postponedRoutes = mutableListOf<Route>()

  init {

      assertEquals(200, response.code)
      assertEquals(TlsVersion.TLS_1_3, response.handshake?.tlsVersion)
      assertEquals(Protocol.HTTP_2, response.protocol)

      assertThat(response.exchangeAccessor!!.connectionAccessor.socket())
        .isInstanceOf<SSLSocketImpl>()
    }
  }

  @Test
  fun testSupportedProtocols() {
    val factory = SSLSocketFactoryImpl()
    val s = factory.createSocket() as SSLSocketImpl

 * limitations under the License.
 */
package okhttp3

import java.io.File
import java.net.InetSocketAddress
import java.net.Proxy
import java.net.ProxySelector
import java.net.Socket
import java.net.URI
import java.net.URL
import java.nio.charset.Charset
import java.security.KeyPair
import java.security.Principal
import java.security.cert.Certificate
import java.security.cert.X509Certificate

  when {
    // If there was a protocol problem, don't recover.
    e is ProtocolException -> false

    // If there was an interruption or timeout (SocketTimeoutException), don't recover.
    // For the socket connect timeout case we do not try the same host with a different
    // ConnectionSpec: we assume it is unreachable.
    e is InterruptedIOException -> false

  // from the perspective of a single peer.
  private val random = Random(0)
  private val taskFaker = TaskFaker()
  private val sockets = inMemorySocketPair(8192L)
  private val client = TestStreams(taskFaker, sockets[0], client = true)
  private val server = TestStreams(taskFaker, sockets[1], client = false)

  @BeforeEach
  fun setUp() {
    client.initWebSocket(random)
    server.initWebSocket(random)
  }

          object : EventListener() {
            override fun connectionAcquired(
              call: Call,
              connection: Connection,
            ) {
              val sslSocket = connection.socket() as SSLSocket
              println("Requested " + sslSocket.sslParameters.applicationProtocols.joinToString())
              println("Negotiated " + sslSocket.applicationProtocol)
            }
          },

    println("Proxy Server 1 is ${server1.socketAddress}")
    println("Proxy Server 2 is ${server2.socketAddress}")

    // Since myproxy:8008 won't resolve, redirect with DNS to proxyServer1
    // Then redirect socket connection to server1
    dns["myproxy"] = listOf(proxyServer1)
    socketFactory[proxyServer1] = server1.socketAddress

    client = client.newBuilder().proxySelector(proxySelector).build()

    when explicitly forbidden.
 *  Fix: Throw a `SSLPeerUnverifiedException` when host verification fails.
 *  Fix: MockWebServer explicitly closes sockets. (On some Android releases,
    closing the input stream and output stream of a socket is not sufficient.
 *  Fix: Buffer outgoing HTTP/2 frames to limit how many outgoing frames are
    created.
 *  Fix: Avoid crashing when cache writing fails due to a full disk.