internal fun cacheGet(
  cache: Cache,
  request: Request,
): Response? = cache.get(request)

internal fun applyConnectionSpec(
  connectionSpec: ConnectionSpec,
  sslSocket: SSLSocket,
  isFallback: Boolean,
) = connectionSpec.apply(sslSocket, isFallback)

internal fun ConnectionSpec.effectiveCipherSuites(socketEnabledCipherSuites: Array<String>): Array<String> =
  if (cipherSuitesAsString != null) {

  override fun getSelectedProtocol(sslSocket: SSLSocket): String? =
    when {
      matchesSocket(sslSocket) -> Conscrypt.getApplicationProtocol(sslSocket)
      else -> null // No TLS extensions if the socket class is custom.
    }

  override fun configureTlsExtensions(
    sslSocket: SSLSocket,
    hostname: String?,
    protocols: List<Protocol>,
  ) {

    val s = sslSocket as BCSSLSocket

    return when (val protocol = s.applicationProtocol) {
      null, "" -> null
      else -> protocol
    }
  }

  override fun configureTlsExtensions(
    sslSocket: SSLSocket,
    hostname: String?,
    protocols: List<Protocol>,
  ) {
    // No TLS extensions if the socket class is custom.
    if (matchesSocket(sslSocket)) {

import javax.net.ssl.HandshakeCompletedListener
import javax.net.ssl.SSLParameters
import javax.net.ssl.SSLSession
import javax.net.ssl.SSLSocket

/** An [SSLSocket] that delegates all calls.  */
abstract class DelegatingSSLSocket(
  protected val delegate: SSLSocket?,
) : SSLSocket() {
  @Throws(IOException::class)
  override fun shutdownInput() {
    delegate!!.shutdownInput()
  }

  @Throws(IOException::class)

 */
package okhttp3.internal.platform.android

import javax.net.ssl.SSLSocket
import javax.net.ssl.SSLSocketFactory
import javax.net.ssl.X509TrustManager
import okhttp3.OkHttpClient
import okhttp3.internal.platform.Platform
import okhttp3.internal.readFieldOrNull

/**
 * Base Android reflection based SocketAdapter for the built in Android SSLSocket.
 *

        sslSocket.sslParameters = sslParameters
      }
    } else {
      super.configureTlsExtensions(sslSocket, hostname, protocols)
    }
  }

  override fun getSelectedProtocol(sslSocket: SSLSocket): String? =
    if (sslSocket is org.openjsse.javax.net.ssl.SSLSocket) {
      when (val protocol = sslSocket.applicationProtocol) {

        .build()
    assertThat(tlsSpec.cipherSuites).isNull()
    val sslSocket = SSLSocketFactory.getDefault().createSocket() as SSLSocket
    sslSocket.enabledCipherSuites =
      arrayOf(
        CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256.javaName,
        CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA.javaName,
      )
    applyConnectionSpec(tlsSpec, sslSocket, false)
    if (platform.isAndroid) {

              override fun connectionAcquired(
                call: Call,
                connection: Connection,
              ) {
                val sslSocket = connection.socket() as SSLSocket

                sessionIds.add(
                  sslSocket.session.id
                    .toByteString()
                    .hex(),
                )
              }
            },
          ),

  fun testMatchesSupportedSocket() {
    val socketFactory = context.socketFactory

    val sslSocket = socketFactory.createSocket() as SSLSocket
    assertTrue(adapter.matchesSocket(sslSocket))

    adapter.configureTlsExtensions(sslSocket, null, listOf(HTTP_2, HTTP_1_1))
    // not connected
    assertNull(adapter.getSelectedProtocol(sslSocket))
  }

  @Test
  fun testMatchesSupportedAndroidSocketFactory() {

  }

  private fun createSocketWithEnabledProtocols(vararg tlsVersions: TlsVersion): SSLSocket =
    (handshakeCertificates.sslSocketFactory().createSocket() as SSLSocket).apply {
      enabledProtocols = javaNames(*tlsVersions)
    }

  private fun assertEnabledProtocols(
    socket: SSLSocket,
    vararg required: TlsVersion,
  ) {