1 /* 2 * Copyright (C) 2008 Esmertec AG. 3 * Copyright (C) 2008 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package com.android.im.imps; 18 19 import com.android.im.engine.ImException; 20 import com.android.im.plugin.PasswordDigest; 21 22 import dalvik.system.PathClassLoader; 23 24 public class CustomPasswordDigest implements PasswordDigest { 25 26 private PasswordDigest mPasswordDigest; 27 public CustomPasswordDigest(String pluginPath, String implClass) throws ImException { 28 PathClassLoader classLoader = new PathClassLoader(pluginPath, 29 getClass().getClassLoader()); 30 try { 31 Class<?> cls = classLoader.loadClass(implClass); 32 mPasswordDigest = (PasswordDigest)cls.newInstance(); 33 } catch (ClassNotFoundException e) { 34 throw new ImException(e); 35 } catch (IllegalAccessException e) { 36 throw new ImException(e); 37 } catch (InstantiationException e) { 38 throw new ImException(e); 39 } 40 } 41 public String digest(String schema, String nonce, String password) throws ImException { 42 return mPasswordDigest.digest(schema, nonce, password); 43 } 44 45 public String[] getSupportedDigestSchema() { 46 return mPasswordDigest.getSupportedDigestSchema(); 47 } 48 49 } 50