1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.bluetooth.pbapclient;
18
19import android.os.Handler;
20import android.util.Log;
21
22import javax.obex.Authenticator;
23import javax.obex.PasswordAuthentication;
24
25/* ObexAuthentication is a required component for PBAP in order to support backwards compatibility
26 * with PSE devices prior to PBAP 1.2. With profiles prior to 1.2 the actual initiation of
27 * authentication is implementation defined.
28 */
29
30
31class BluetoothPbapObexAuthenticator implements Authenticator {
32
33    private final static String TAG = "BluetoothPbapObexAuthenticator";
34
35    //Default session key for legacy devices is 0000
36    private String mSessionKey = "0000";
37
38    private final Handler mCallback;
39
40    public BluetoothPbapObexAuthenticator(Handler callback) {
41        mCallback = callback;
42    }
43
44    @Override
45    public PasswordAuthentication onAuthenticationChallenge(String description,
46            boolean isUserIdRequired, boolean isFullAccess) {
47        PasswordAuthentication pa = null;
48        Log.v(TAG, "onAuthenticationChallenge: starting");
49
50        if (mSessionKey != null && mSessionKey.length() != 0) {
51            Log.v(TAG, "onAuthenticationChallenge: mSessionKey=" + mSessionKey);
52            pa = new PasswordAuthentication(null, mSessionKey.getBytes());
53        } else {
54            Log.v(TAG, "onAuthenticationChallenge: mSessionKey is empty, timeout/cancel occured");
55        }
56
57        return pa;
58    }
59
60    @Override
61    public byte[] onAuthenticationResponse(byte[] userName) {
62        Log.v(TAG, "onAuthenticationResponse: " + userName);
63        /* required only in case PCE challenges PSE which we don't do now */
64        return null;
65    }
66
67}
68