ciphers.

When negotiating a connection to an HTTPS server, OkHttp needs to know which [TLS versions](https://square.github.io/okhttp/4.x/okhttp/okhttp3/-tls-version/) and [cipher suites](https://square.github.io/okhttp/4.x/okhttp/okhttp3/-cipher-suite/) to offer. A client that wants to maximize connectivity would include obsolete TLS versions and weak-by-design cipher suites. A strict client that wants to maximize security would be limited to only the latest TLS version and strongest cipher suites....

import mockwebserver3.MockWebServer
import mockwebserver3.SocketPolicy.FailHandshake
import okhttp3.Headers.Companion.headersOf
import okhttp3.internal.DoubleInetAddressDns
import okhttp3.internal.connection.RealConnectionPool.Companion.get
import okhttp3.testing.Flaky
import okhttp3.testing.PlatformRule
import okhttp3.tls.internal.TlsUtil.localhost
import org.junit.jupiter.api.BeforeEach
import org.junit.jupiter.api.Tag

import java.util.concurrent.TimeUnit
import mockwebserver3.SocketPolicy.KeepOpen
import mockwebserver3.internal.toMockResponseBody
import okhttp3.ExperimentalOkHttpApi
import okhttp3.Headers
import okhttp3.Headers.Companion.headersOf
import okhttp3.WebSocketListener
import okhttp3.internal.addHeaderLenient
import okhttp3.internal.http2.Settings
import okio.Buffer

/** A scripted response to be replayed by the mock web server. */

 * limitations under the License.
 */
package okhttp3.compare

import assertk.assertThat
import assertk.assertions.isEqualTo
import assertk.assertions.matches
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.testing.PlatformRule
import org.junit.jupiter.api.Test

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

import assertk.assertThat
import assertk.assertions.isEqualTo
import mockwebserver3.MockWebServer
import okhttp3.TestUtil.assumeNetwork
import okhttp3.testing.PlatformRule
import org.junit.jupiter.api.BeforeEach
import org.junit.jupiter.api.Test

 * limitations under the License.
 */
package okhttp3

import java.io.Closeable
import java.io.IOException
import java.util.concurrent.LinkedBlockingDeque
import okhttp3.internal.concurrent.TaskFaker
import okhttp3.internal.connection.RealConnection
import okhttp3.internal.connection.RoutePlanner
import okhttp3.internal.connection.RoutePlanner.ConnectResult

class FakeRoutePlanner(

 * limitations under the License.
 */
package okhttp3

import assertk.assertThat
import assertk.assertions.contains
import assertk.assertions.containsExactly
import assertk.assertions.isEqualTo
import assertk.assertions.isNotEmpty
import javax.net.ssl.SSLSocket
import javax.net.ssl.SSLSocketFactory
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import okhttp3.TestUtil.assumeNetwork

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

import java.io.IOException
import java.security.cert.X509Certificate
import okhttp3.OkHttpClient
import okhttp3.Request.Builder
import okhttp3.tls.HandshakeCertificates
import okhttp3.tls.decodeCertificatePem

class CustomTrust {

import okhttp3.internal.closeQuietly
import okhttp3.internal.concurrent.TaskRunner
import okhttp3.internal.connection.Locks.withLock
import okhttp3.internal.http2.ErrorCode.REFUSED_STREAM
import okhttp3.internal.http2.Settings.Companion.DEFAULT_INITIAL_WINDOW_SIZE
import okhttp3.internal.http2.flowcontrol.WindowCounter
import okhttp3.internal.ignoreIoExceptions
import okhttp3.internal.okHttpName
import okhttp3.internal.peerName

import mockwebserver3.MockWebServer
import okhttp3.OkHttpClient
import okhttp3.OkHttpClientTestRule
import okhttp3.RecordingEventListener
import okhttp3.Request
import okhttp3.internal.http2.ConnectionShutdownException
import okhttp3.testing.Flaky
import okhttp3.testing.PlatformRule
import okhttp3.tls.HandshakeCertificates
import okhttp3.tls.HeldCertificate
import okhttp3.tls.internal.TlsUtil.newKeyManager