| /* |
| * Copyright 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 org.conscrypt; |
| |
| import java.lang.reflect.Method; |
| import java.net.Socket; |
| import javax.crypto.SecretKey; |
| import javax.net.ssl.SSLEngine; |
| |
| /** |
| * Reflection-based {@link PSKKeyManager} adaptor for objects which expose all the methods of the |
| * {@code PSKKeyManager} interface but do not implement the interface. |
| * |
| * <p>This is expected to be useful on platforms where there are multiple instances of the |
| * {@code PSKKeyManager} interface. |
| * |
| * Visible for testing only. |
| * |
| * @deprecated This abstraction is deprecated because it does not work with TLS 1.3. |
| */ |
| @Deprecated |
| final class DuckTypedPSKKeyManager implements PSKKeyManager { |
| |
| private final Object mDelegate; |
| |
| private DuckTypedPSKKeyManager(Object delegate) { |
| mDelegate = delegate; |
| } |
| |
| /** |
| * Gets an instance of {@code DuckTypedPSKKeyManager} which delegates all invocations of methods |
| * of the {@link PSKKeyManager} interface to the same methods of the provided object. |
| * |
| * @throws NoSuchMethodException if {@code obj} does not implement a method of the |
| * {@code PSKKeyManager} interface. |
| */ |
| static DuckTypedPSKKeyManager getInstance(Object obj) throws NoSuchMethodException { |
| Class<?> sourceClass = obj.getClass(); |
| for (Method targetMethod : PSKKeyManager.class.getMethods()) { |
| if (targetMethod.isSynthetic()) { |
| continue; |
| } |
| // Check that obj exposes the target method (same name and parameter types) |
| Method sourceMethod = |
| sourceClass.getMethod(targetMethod.getName(), targetMethod.getParameterTypes()); |
| // Check that the return type of obj's method matches the target method. |
| Class<?> sourceReturnType = sourceMethod.getReturnType(); |
| Class<?> targetReturnType = targetMethod.getReturnType(); |
| if (!targetReturnType.isAssignableFrom(sourceReturnType)) { |
| throw new NoSuchMethodException(sourceMethod + " return value (" + sourceReturnType |
| + ") incompatible with target return value (" + targetReturnType + ")"); |
| } |
| } |
| |
| return new DuckTypedPSKKeyManager(obj); |
| } |
| |
| @Override |
| public String chooseServerKeyIdentityHint(Socket socket) { |
| try { |
| return (String) mDelegate.getClass() |
| .getMethod("chooseServerKeyIdentityHint", Socket.class) |
| .invoke(mDelegate, socket); |
| } catch (Exception e) { |
| throw new RuntimeException("Failed to invoke chooseServerKeyIdentityHint", e); |
| } |
| } |
| |
| @Override |
| public String chooseServerKeyIdentityHint(SSLEngine engine) { |
| try { |
| return (String) mDelegate.getClass() |
| .getMethod("chooseServerKeyIdentityHint", SSLEngine.class) |
| .invoke(mDelegate, engine); |
| } catch (Exception e) { |
| throw new RuntimeException("Failed to invoke chooseServerKeyIdentityHint", e); |
| } |
| } |
| |
| @Override |
| public String chooseClientKeyIdentity(String identityHint, Socket socket) { |
| try { |
| return (String) mDelegate.getClass() |
| .getMethod("chooseClientKeyIdentity", String.class, Socket.class) |
| .invoke(mDelegate, identityHint, socket); |
| } catch (Exception e) { |
| throw new RuntimeException("Failed to invoke chooseClientKeyIdentity", e); |
| } |
| } |
| |
| @Override |
| public String chooseClientKeyIdentity(String identityHint, SSLEngine engine) { |
| try { |
| return (String) mDelegate.getClass() |
| .getMethod("chooseClientKeyIdentity", String.class, SSLEngine.class) |
| .invoke(mDelegate, identityHint, engine); |
| } catch (Exception e) { |
| throw new RuntimeException("Failed to invoke chooseClientKeyIdentity", e); |
| } |
| } |
| |
| @Override |
| public SecretKey getKey(String identityHint, String identity, Socket socket) { |
| try { |
| return (SecretKey) mDelegate.getClass() |
| .getMethod("getKey", String.class, String.class, Socket.class) |
| .invoke(mDelegate, identityHint, identity, socket); |
| } catch (Exception e) { |
| throw new RuntimeException("Failed to invoke getKey", e); |
| } |
| } |
| |
| @Override |
| public SecretKey getKey(String identityHint, String identity, SSLEngine engine) { |
| try { |
| return (SecretKey) mDelegate.getClass() |
| .getMethod("getKey", String.class, String.class, SSLEngine.class) |
| .invoke(mDelegate, identityHint, identity, engine); |
| } catch (Exception e) { |
| throw new RuntimeException("Failed to invoke getKey", e); |
| } |
| } |
| } |