| /* |
| * Copyright (C) 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 com.android.trustagent.test; |
| |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.SharedPreferences; |
| import android.os.PersistableBundle; |
| import android.preference.PreferenceManager; |
| import android.service.trust.TrustAgentService; |
| import android.support.v4.content.LocalBroadcastManager; |
| import android.util.Log; |
| import android.widget.Toast; |
| |
| import java.util.List; |
| |
| public class SampleTrustAgent extends TrustAgentService |
| implements SharedPreferences.OnSharedPreferenceChangeListener { |
| |
| /** |
| * If true, allows anyone to control this trust agent, e.g. using adb: |
| * <pre> |
| * $ adb shell am broadcast -a action.sample_trust_agent.grant_trust\ |
| * -e extra.message SampleTrust\ |
| * --el extra.duration 1000 --ez extra.init_by_user false |
| * </pre> |
| */ |
| private static final boolean ALLOW_EXTERNAL_BROADCASTS = false; |
| |
| LocalBroadcastManager mLocalBroadcastManager; |
| |
| private static final String ACTION_GRANT_TRUST = "action.sample_trust_agent.grant_trust"; |
| private static final String ACTION_REVOKE_TRUST = "action.sample_trust_agent.revoke_trust"; |
| |
| private static final String EXTRA_MESSAGE = "extra.message"; |
| private static final String EXTRA_DURATION = "extra.duration"; |
| private static final String EXTRA_INITIATED_BY_USER = "extra.init_by_user"; |
| |
| private static final String PREFERENCE_REPORT_UNLOCK_ATTEMPTS |
| = "preference.report_unlock_attempts"; |
| private static final String PREFERENCE_MANAGING_TRUST |
| = "preference.managing_trust"; |
| private static final String PREFERENCE_REPORT_DEVICE_LOCKED = "preference.report_device_locked"; |
| |
| private static final String TAG = "SampleTrustAgent"; |
| |
| @Override |
| public void onCreate() { |
| super.onCreate(); |
| mLocalBroadcastManager = LocalBroadcastManager.getInstance(this); |
| |
| IntentFilter filter = new IntentFilter(); |
| filter.addAction(ACTION_GRANT_TRUST); |
| filter.addAction(ACTION_REVOKE_TRUST); |
| mLocalBroadcastManager.registerReceiver(mReceiver, filter); |
| if (ALLOW_EXTERNAL_BROADCASTS) { |
| registerReceiver(mReceiver, filter); |
| } |
| |
| setManagingTrust(getIsManagingTrust(this)); |
| PreferenceManager.getDefaultSharedPreferences(this) |
| .registerOnSharedPreferenceChangeListener(this); |
| } |
| |
| @Override |
| public void onTrustTimeout() { |
| super.onTrustTimeout(); |
| logAndShowToast("onTrustTimeout(): timeout expired"); |
| } |
| |
| @Override |
| public void onDeviceLocked() { |
| super.onDeviceLocked(); |
| if (getReportDeviceLocked(this)) { |
| logAndShowToast("onDeviceLocked(): device is now locked"); |
| } |
| } |
| |
| @Override |
| public void onDeviceUnlocked() { |
| super.onDeviceUnlocked(); |
| if (getReportDeviceLocked(this)) { |
| logAndShowToast("onDeviceUnlocked(): device is now unlocked"); |
| } |
| } |
| |
| @Override |
| public void onUnlockAttempt(boolean successful) { |
| if (getReportUnlockAttempts(this)) { |
| logAndShowToast("onUnlockAttempt(successful=" + successful + ")"); |
| } |
| } |
| |
| private void logAndShowToast(String text) { |
| Log.i(TAG, text); |
| Toast.makeText(this, text, Toast.LENGTH_SHORT).show(); |
| } |
| |
| @Override |
| public boolean onConfigure(List<PersistableBundle> options) { |
| if (options != null) { |
| for (int i = 0; i < options.size(); i++) { |
| Log.v(TAG, "Policy options received: " + options.get(i)); |
| } |
| } else { |
| Log.w(TAG, "onConfigure() called with no options"); |
| } |
| // TODO: Handle options |
| return true; // inform DPM that we support it |
| } |
| |
| @Override |
| public void onDestroy() { |
| super.onDestroy(); |
| mLocalBroadcastManager.unregisterReceiver(mReceiver); |
| if (ALLOW_EXTERNAL_BROADCASTS) { |
| unregisterReceiver(mReceiver); |
| } |
| PreferenceManager.getDefaultSharedPreferences(this) |
| .unregisterOnSharedPreferenceChangeListener(this); |
| } |
| |
| private BroadcastReceiver mReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| if (ACTION_GRANT_TRUST.equals(action)) { |
| try { |
| grantTrust(intent.getStringExtra(EXTRA_MESSAGE), |
| intent.getLongExtra(EXTRA_DURATION, 0), |
| intent.getBooleanExtra(EXTRA_INITIATED_BY_USER, false)); |
| } catch (IllegalStateException e) { |
| logAndShowToast("IllegalStateException: " + e.getMessage()); |
| } |
| } else if (ACTION_REVOKE_TRUST.equals(action)) { |
| revokeTrust(); |
| } |
| } |
| }; |
| |
| public static void sendGrantTrust(Context context, |
| String message, long durationMs, boolean initiatedByUser) { |
| Intent intent = new Intent(ACTION_GRANT_TRUST); |
| intent.putExtra(EXTRA_MESSAGE, message); |
| intent.putExtra(EXTRA_DURATION, durationMs); |
| intent.putExtra(EXTRA_INITIATED_BY_USER, initiatedByUser); |
| LocalBroadcastManager.getInstance(context).sendBroadcast(intent); |
| } |
| |
| public static void sendRevokeTrust(Context context) { |
| Intent intent = new Intent(ACTION_REVOKE_TRUST); |
| LocalBroadcastManager.getInstance(context).sendBroadcast(intent); |
| } |
| |
| public static void setReportUnlockAttempts(Context context, boolean enabled) { |
| SharedPreferences sharedPreferences = PreferenceManager |
| .getDefaultSharedPreferences(context); |
| sharedPreferences.edit().putBoolean(PREFERENCE_REPORT_UNLOCK_ATTEMPTS, enabled).apply(); |
| } |
| |
| public static boolean getReportUnlockAttempts(Context context) { |
| SharedPreferences sharedPreferences = PreferenceManager |
| .getDefaultSharedPreferences(context); |
| return sharedPreferences.getBoolean(PREFERENCE_REPORT_UNLOCK_ATTEMPTS, false); |
| } |
| |
| public static void setReportDeviceLocked(Context context, boolean enabled) { |
| SharedPreferences sharedPreferences = PreferenceManager |
| .getDefaultSharedPreferences(context); |
| sharedPreferences.edit().putBoolean(PREFERENCE_REPORT_DEVICE_LOCKED, enabled).apply(); |
| } |
| |
| public static boolean getReportDeviceLocked(Context context) { |
| SharedPreferences sharedPreferences = PreferenceManager |
| .getDefaultSharedPreferences(context); |
| return sharedPreferences.getBoolean(PREFERENCE_REPORT_DEVICE_LOCKED, false); |
| } |
| |
| public static void setIsManagingTrust(Context context, boolean enabled) { |
| SharedPreferences sharedPreferences = PreferenceManager |
| .getDefaultSharedPreferences(context); |
| sharedPreferences.edit().putBoolean(PREFERENCE_MANAGING_TRUST, enabled).apply(); |
| } |
| |
| public static boolean getIsManagingTrust(Context context) { |
| SharedPreferences sharedPreferences = PreferenceManager |
| .getDefaultSharedPreferences(context); |
| return sharedPreferences.getBoolean(PREFERENCE_MANAGING_TRUST, false); |
| } |
| |
| @Override |
| public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) { |
| if (PREFERENCE_MANAGING_TRUST.equals(key)) { |
| setManagingTrust(getIsManagingTrust(this)); |
| } |
| } |
| } |