1 /* 2 * Copyright (c) 2008-2009, Motorola, Inc. 3 * 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * - Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * 12 * - Redistributions in binary form must reproduce the above copyright notice, 13 * this list of conditions and the following disclaimer in the documentation 14 * and/or other materials provided with the distribution. 15 * 16 * - Neither the name of the Motorola, Inc. nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 package com.android.bluetooth.pbap; 34 35 import android.util.Log; 36 37 import com.android.internal.annotations.VisibleForTesting; 38 import com.android.obex.Authenticator; 39 import com.android.obex.PasswordAuthentication; 40 41 /** 42 * BluetoothPbapAuthenticator is a used by BluetoothObexServer for obex 43 * authentication procedure. 44 */ 45 public class BluetoothPbapAuthenticator implements Authenticator { 46 private static final String TAG = "PbapAuthenticator"; 47 48 @VisibleForTesting boolean mChallenged; 49 @VisibleForTesting boolean mAuthCancelled; 50 @VisibleForTesting String mSessionKey; 51 @VisibleForTesting PbapStateMachine mPbapStateMachine; 52 BluetoothPbapAuthenticator(final PbapStateMachine stateMachine)53 BluetoothPbapAuthenticator(final PbapStateMachine stateMachine) { 54 mPbapStateMachine = stateMachine; 55 mChallenged = false; 56 mAuthCancelled = false; 57 mSessionKey = null; 58 } 59 setChallenged(final boolean bool)60 final synchronized void setChallenged(final boolean bool) { 61 mChallenged = bool; 62 notify(); 63 } 64 setCancelled(final boolean bool)65 final synchronized void setCancelled(final boolean bool) { 66 mAuthCancelled = bool; 67 notify(); 68 } 69 setSessionKey(final String string)70 final synchronized void setSessionKey(final String string) { 71 mSessionKey = string; 72 } 73 waitUserConfirmation()74 private void waitUserConfirmation() { 75 mPbapStateMachine.sendMessage(PbapStateMachine.CREATE_NOTIFICATION); 76 mPbapStateMachine.sendMessageDelayed(PbapStateMachine.REMOVE_NOTIFICATION, 77 BluetoothPbapService.USER_CONFIRM_TIMEOUT_VALUE); 78 synchronized (this) { 79 while (!mChallenged && !mAuthCancelled) { 80 try { 81 wait(); 82 } catch (InterruptedException e) { 83 Log.e(TAG, "Interrupted while waiting on isChallenged or AuthCancelled"); 84 } 85 } 86 } 87 } 88 89 @Override onAuthenticationChallenge(final String description, final boolean isUserIdRequired, final boolean isFullAccess)90 public PasswordAuthentication onAuthenticationChallenge(final String description, 91 final boolean isUserIdRequired, final boolean isFullAccess) { 92 waitUserConfirmation(); 93 if (mSessionKey.trim().length() != 0) { 94 return new PasswordAuthentication(null, mSessionKey.getBytes()); 95 } 96 return null; 97 } 98 99 // TODO: Reserved for future use only, in case PSE challenge PCE 100 @Override onAuthenticationResponse(final byte[] userName)101 public byte[] onAuthenticationResponse(final byte[] userName) { 102 byte[] b = null; 103 return b; 104 } 105 } 106