001/** 002 * 003 * Copyright 2014 Florian Schmaus 004 * 005 * Licensed under the Apache License, Version 2.0 (the "License"); 006 * you may not use this file except in compliance with the License. 007 * You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.jivesoftware.smack.sasl.provided; 018 019import javax.security.auth.callback.CallbackHandler; 020 021import org.jivesoftware.smack.SmackException; 022import org.jivesoftware.smack.sasl.SASLMechanism; 023import org.jivesoftware.smack.util.ByteUtils; 024 025public class SASLPlainMechanism extends SASLMechanism { 026 027 public static final String NAME = PLAIN; 028 029 @Override 030 protected void authenticateInternal(CallbackHandler cbh) throws SmackException { 031 throw new UnsupportedOperationException("CallbackHandler not (yet) supported"); 032 } 033 034 @Override 035 protected byte[] getAuthenticationText() throws SmackException { 036 // concatenate and encode username (authcid) and password 037 String authzid; 038 if (authorizationId == null) { 039 authzid = ""; 040 } else { 041 authzid = authorizationId.toString(); 042 } 043 byte[] authcid = toBytes(authzid + '\u0000' + authenticationId); 044 byte[] passw = toBytes('\u0000' + password); 045 046 return ByteUtils.concat(authcid, passw); 047 } 048 049 @Override 050 public String getName() { 051 return NAME; 052 } 053 054 @Override 055 public int getPriority() { 056 return 410; 057 } 058 059 @Override 060 public SASLPlainMechanism newInstance() { 061 return new SASLPlainMechanism(); 062 } 063 064 @Override 065 public void checkIfSuccessfulOrThrow() throws SmackException { 066 // No check performed 067 } 068 069 @Override 070 public boolean authzidSupported() { 071 return true; 072 } 073}