| /* |
| * 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 android.app.trust; |
| |
| import android.Manifest; |
| import android.annotation.RequiresPermission; |
| import android.annotation.SystemService; |
| import android.content.Context; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.Looper; |
| import android.os.Message; |
| import android.os.RemoteException; |
| import android.util.ArrayMap; |
| |
| import com.android.internal.widget.LockPatternUtils; |
| |
| /** |
| * See {@link com.android.server.trust.TrustManagerService} |
| * @hide |
| */ |
| @SystemService(Context.TRUST_SERVICE) |
| public class TrustManager { |
| |
| private static final int MSG_TRUST_CHANGED = 1; |
| private static final int MSG_TRUST_MANAGED_CHANGED = 2; |
| |
| private static final String TAG = "TrustManager"; |
| private static final String DATA_FLAGS = "initiatedByUser"; |
| |
| private final ITrustManager mService; |
| private final ArrayMap<TrustListener, ITrustListener> mTrustListeners; |
| |
| public TrustManager(IBinder b) { |
| mService = ITrustManager.Stub.asInterface(b); |
| mTrustListeners = new ArrayMap<TrustListener, ITrustListener>(); |
| } |
| |
| /** |
| * Changes the lock status for the given user. This is only applicable to Managed Profiles, |
| * other users should be handled by Keyguard. |
| * |
| * @param userId The id for the user to be locked/unlocked. |
| * @param locked The value for that user's locked state. |
| */ |
| @RequiresPermission(Manifest.permission.ACCESS_KEYGUARD_SECURE_STORAGE) |
| public void setDeviceLockedForUser(int userId, boolean locked) { |
| try { |
| mService.setDeviceLockedForUser(userId, locked); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Reports that user {@param userId} has tried to unlock the device. |
| * |
| * @param successful if true, the unlock attempt was successful. |
| * |
| * Requires the {@link android.Manifest.permission#ACCESS_KEYGUARD_SECURE_STORAGE} permission. |
| */ |
| public void reportUnlockAttempt(boolean successful, int userId) { |
| try { |
| mService.reportUnlockAttempt(successful, userId); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Reports that user {@param userId} has entered a temporary device lockout. |
| * |
| * This generally occurs when the user has unsuccessfully tried to unlock the device too many |
| * times. The user will then be unable to unlock the device until a set amount of time has |
| * elapsed. |
| * |
| * @param timeout The amount of time that needs to elapse, in milliseconds, until the user may |
| * attempt to unlock the device again. |
| * |
| * Requires the {@link android.Manifest.permission#ACCESS_KEYGUARD_SECURE_STORAGE} permission. |
| */ |
| public void reportUnlockLockout(int timeoutMs, int userId) { |
| try { |
| mService.reportUnlockLockout(timeoutMs, userId); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Reports that the list of enabled trust agents changed for user {@param userId}. |
| * |
| * Requires the {@link android.Manifest.permission#ACCESS_KEYGUARD_SECURE_STORAGE} permission. |
| */ |
| public void reportEnabledTrustAgentsChanged(int userId) { |
| try { |
| mService.reportEnabledTrustAgentsChanged(userId); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Reports that the visibility of the keyguard has changed. |
| * |
| * Requires the {@link android.Manifest.permission#ACCESS_KEYGUARD_SECURE_STORAGE} permission. |
| */ |
| public void reportKeyguardShowingChanged() { |
| try { |
| mService.reportKeyguardShowingChanged(); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Registers a listener for trust events. |
| * |
| * Requires the {@link android.Manifest.permission#TRUST_LISTENER} permission. |
| */ |
| public void registerTrustListener(final TrustListener trustListener) { |
| try { |
| ITrustListener.Stub iTrustListener = new ITrustListener.Stub() { |
| @Override |
| public void onTrustChanged(boolean enabled, int userId, int flags) { |
| Message m = mHandler.obtainMessage(MSG_TRUST_CHANGED, (enabled ? 1 : 0), userId, |
| trustListener); |
| if (flags != 0) { |
| m.getData().putInt(DATA_FLAGS, flags); |
| } |
| m.sendToTarget(); |
| } |
| |
| @Override |
| public void onTrustManagedChanged(boolean managed, int userId) { |
| mHandler.obtainMessage(MSG_TRUST_MANAGED_CHANGED, (managed ? 1 : 0), userId, |
| trustListener).sendToTarget(); |
| } |
| }; |
| mService.registerTrustListener(iTrustListener); |
| mTrustListeners.put(trustListener, iTrustListener); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Unregisters a listener for trust events. |
| * |
| * Requires the {@link android.Manifest.permission#TRUST_LISTENER} permission. |
| */ |
| public void unregisterTrustListener(final TrustListener trustListener) { |
| ITrustListener iTrustListener = mTrustListeners.remove(trustListener); |
| if (iTrustListener != null) { |
| try { |
| mService.unregisterTrustListener(iTrustListener); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| } |
| |
| /** |
| * @return whether {@param userId} has enabled and configured trust agents. Ignores short-term |
| * unavailability of trust due to {@link LockPatternUtils.StrongAuthTracker}. |
| */ |
| @RequiresPermission(android.Manifest.permission.TRUST_LISTENER) |
| public boolean isTrustUsuallyManaged(int userId) { |
| try { |
| return mService.isTrustUsuallyManaged(userId); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| private final Handler mHandler = new Handler(Looper.getMainLooper()) { |
| @Override |
| public void handleMessage(Message msg) { |
| switch(msg.what) { |
| case MSG_TRUST_CHANGED: |
| int flags = msg.peekData() != null ? msg.peekData().getInt(DATA_FLAGS) : 0; |
| ((TrustListener)msg.obj).onTrustChanged(msg.arg1 != 0, msg.arg2, flags); |
| break; |
| case MSG_TRUST_MANAGED_CHANGED: |
| ((TrustListener)msg.obj).onTrustManagedChanged(msg.arg1 != 0, msg.arg2); |
| } |
| } |
| }; |
| |
| public interface TrustListener { |
| |
| /** |
| * Reports that the trust state has changed. |
| * @param enabled if true, the system believes the environment to be trusted. |
| * @param userId the user, for which the trust changed. |
| * @param flags flags specified by the trust agent when granting trust. See |
| * {@link android.service.trust.TrustAgentService#grantTrust(CharSequence, long, int) |
| * TrustAgentService.grantTrust(CharSequence, long, int)}. |
| */ |
| void onTrustChanged(boolean enabled, int userId, int flags); |
| |
| /** |
| * Reports that whether trust is managed has changed |
| * @param enabled if true, at least one trust agent is managing trust. |
| * @param userId the user, for which the state changed. |
| */ |
| void onTrustManagedChanged(boolean enabled, int userId); |
| } |
| } |