* pinning.
 */
abstract class CertificateChainCleaner {
  @Throws(SSLPeerUnverifiedException::class)
  abstract fun clean(
    chain: List<Certificate>,
    hostname: String,
  ): List<Certificate>

  companion object {
    fun get(trustManager: X509TrustManager): CertificateChainCleaner {
      return Platform.get().buildCertificateChainCleaner(trustManager)
    }

  /** Returns a certificate pinner that uses `certificateChainCleaner`. */
  internal fun withCertificateChainCleaner(certificateChainCleaner: CertificateChainCleaner): CertificatePinner {
    return if (this.certificateChainCleaner == certificateChainCleaner) {
      this
    } else {
      CertificatePinner(pins, certificateChainCleaner)
    }
  }

  override fun equals(other: Any?): Boolean {

import okhttp3.internal.platform.android.DeferredSocketAdapter
import okhttp3.internal.platform.android.StandardAndroidSocketAdapter
import okhttp3.internal.tls.BasicTrustRootIndex
import okhttp3.internal.tls.CertificateChainCleaner
import okhttp3.internal.tls.TrustRootIndex

/** Android 5 to 9 (API 21 to 28). */
@SuppressSignatureCheck
class AndroidPlatform : Platform() {
  private val socketAdapters =
    listOfNotNull(

import javax.net.ssl.SSLPeerUnverifiedException
import javax.net.ssl.X509TrustManager
import okhttp3.internal.SuppressSignatureCheck
import okhttp3.internal.tls.CertificateChainCleaner

/**
 * Android implementation of CertificateChainCleaner using direct Android API calls.
 * Not used if X509TrustManager doesn't implement [X509TrustManager.checkServerTrusted] with
 * an additional host param.
 */

import okhttp3.internal.platform.android.AndroidLog
import okhttp3.internal.readFieldOrNull
import okhttp3.internal.tls.BasicCertificateChainCleaner
import okhttp3.internal.tls.BasicTrustRootIndex
import okhttp3.internal.tls.CertificateChainCleaner
import okhttp3.internal.tls.TrustRootIndex
import okio.Buffer
import org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement

/**
 * Access to platform-specific features.
 *
 * ### Session Tickets
 *

  val hostnameVerifier: HostnameVerifier = builder.hostnameVerifier

  @get:JvmName("certificatePinner")
  val certificatePinner: CertificatePinner

  @get:JvmName("certificateChainCleaner")
  val certificateChainCleaner: CertificateChainCleaner?

  /**
   * Default call timeout (in milliseconds). By default there is no timeout for complete calls, but
   * there is for the connect, write, and read actions within a call.

import okhttp3.internal.platform.android.BouncyCastleSocketAdapter
import okhttp3.internal.platform.android.ConscryptSocketAdapter
import okhttp3.internal.platform.android.DeferredSocketAdapter
import okhttp3.internal.tls.CertificateChainCleaner

/** Android 10+ (API 29+). */
@SuppressSignatureCheck
class Android10Platform : Platform() {
  private val socketAdapters =
    listOfNotNull(
      Android10SocketAdapter.buildIfSupported(),

 * [TrustedCertificateIndex].
 *
 * [Conscrypt]: https://conscrypt.org/
 */
class BasicCertificateChainCleaner(
  private val trustRootIndex: TrustRootIndex,
) : CertificateChainCleaner() {
  /**
   * Returns a cleaned chain for [chain].
   *
   * This method throws if the complete chain to a trusted CA certificate cannot be constructed.

import assertk.assertThat
import assertk.assertions.isEqualTo
import java.security.cert.Certificate
import javax.net.ssl.SSLPeerUnverifiedException
import kotlin.test.assertFailsWith
import okhttp3.internal.tls.CertificateChainCleaner.Companion.get
import okhttp3.tls.HandshakeCertificates
import okhttp3.tls.HeldCertificate
import org.junit.jupiter.api.Test

class CertificateChainCleanerTest {
  @Test
  fun equalsFromCertificate() {

        Handshake(
          unverifiedHandshake.tlsVersion,
          unverifiedHandshake.cipherSuite,
          unverifiedHandshake.localCertificates,
        ) {
          certificatePinner.certificateChainCleaner!!.clean(
            unverifiedHandshake.peerCertificates,
            address.url.host,
          )
        }
      this.handshake = handshake