content: /*
   * Copyright (C) 2014 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package android.webkit;
  
  import android.annotation.Nullable;
  
  import java.security.Principal;
  import java.security.PrivateKey;
  import java.security.cert.X509Certificate;
  
  /**
   * ClientCertRequest: The user receives an instance of this class as
   * a parameter of {@link WebViewClient#onReceivedClientCertRequest}.
   * The request includes the parameters to choose the client certificate,
   * such as the host name and the port number requesting the cert, the acceptable
   * key types and the principals.
   *
   * The user should call one of the class methods to indicate how to deal
   * with the client certificate request. All methods should be called on
   * UI thread.
   *
   * WebView caches the {@link #proceed} and {@link #cancel} responses in memory
   * and uses them to handle future client certificate requests for the same
   * host/port pair. The user can clear the cached data using
   * {@link WebView#clearClientCertPreferences}.
   *
   */
  public abstract class ClientCertRequest {
  
      public ClientCertRequest() { }
  
      /**
       * Returns the acceptable types of asymmetric keys.
       */
      @Nullable
      public abstract String[] getKeyTypes();
  
      /**
       * Returns the acceptable certificate issuers for the certificate
       *            matching the private key.
       */
      @Nullable
      public abstract Principal[] getPrincipals();
  
      /**
       * Returns the host name of the server requesting the certificate.
       */
      public abstract String getHost();
  
      /**
       * Returns the port number of the server requesting the certificate.
       */
      public abstract int getPort();
  
      /**
       * Proceed with the specified private key and client certificate chain.
       * Remember the user's positive choice and use it for future requests.
       */
      public abstract void proceed(PrivateKey privateKey, X509Certificate[] chain);
  
      /**
       * Ignore the request for now. Do not remember user's choice.
       */
      public abstract void ignore();
  
      /**
       * Cancel this request. Remember the user's choice and use it for
       * future requests.
       */
      public abstract void cancel();
  }
  