src.com.android.systemui.statusbar.NotificationLockscreenUserManagerImpl Maven / Gradle / Ivy
/*
* Copyright (C) 2018 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.systemui.statusbar;
import static android.app.admin.DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED;
import android.app.ActivityManager;
import android.app.KeyguardManager;
import android.app.Notification;
import android.app.admin.DevicePolicyManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.IntentSender;
import android.content.pm.UserInfo;
import android.database.ContentObserver;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.UserHandle;
import android.os.UserManager;
import android.provider.Settings;
import android.util.Log;
import android.util.SparseArray;
import android.util.SparseBooleanArray;
import com.android.internal.statusbar.IStatusBarService;
import com.android.internal.statusbar.NotificationVisibility;
import com.android.internal.widget.LockPatternUtils;
import com.android.keyguard.KeyguardUpdateMonitor;
import com.android.systemui.Dependency;
import com.android.systemui.Dumpable;
import com.android.systemui.plugins.statusbar.StatusBarStateController;
import com.android.systemui.plugins.statusbar.StatusBarStateController.StateListener;
import com.android.systemui.recents.OverviewProxyService;
import com.android.systemui.statusbar.notification.NotificationEntryManager;
import com.android.systemui.statusbar.notification.NotificationUtils;
import com.android.systemui.statusbar.notification.collection.NotificationEntry;
import com.android.systemui.statusbar.notification.logging.NotificationLogger;
import com.android.systemui.statusbar.policy.DeviceProvisionedController;
import com.android.systemui.statusbar.policy.KeyguardMonitor;
import java.io.FileDescriptor;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
/**
* Handles keeping track of the current user, profiles, and various things related to hiding
* contents, redacting notifications, and the lockscreen.
*/
public class NotificationLockscreenUserManagerImpl implements
Dumpable, NotificationLockscreenUserManager, StateListener {
private static final String TAG = "LockscreenUserManager";
private static final boolean ENABLE_LOCK_SCREEN_ALLOW_REMOTE_INPUT = false;
private final DeviceProvisionedController mDeviceProvisionedController =
Dependency.get(DeviceProvisionedController.class);
private final KeyguardMonitor mKeyguardMonitor = Dependency.get(KeyguardMonitor.class);
// Lazy
private NotificationEntryManager mEntryManager;
private final DevicePolicyManager mDevicePolicyManager;
private final SparseBooleanArray mLockscreenPublicMode = new SparseBooleanArray();
private final SparseBooleanArray mUsersWithSeperateWorkChallenge = new SparseBooleanArray();
private final SparseBooleanArray mUsersAllowingPrivateNotifications = new SparseBooleanArray();
private final SparseBooleanArray mUsersAllowingNotifications = new SparseBooleanArray();
private final UserManager mUserManager;
private final IStatusBarService mBarService;
private final List mListeners = new ArrayList<>();
private boolean mShowLockscreenNotifications;
private boolean mAllowLockscreenRemoteInput;
private LockPatternUtils mLockPatternUtils;
protected KeyguardManager mKeyguardManager;
private int mState = StatusBarState.SHADE;
protected final BroadcastReceiver mAllUsersReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED.equals(action) &&
isCurrentProfile(getSendingUserId())) {
mUsersAllowingPrivateNotifications.clear();
updateLockscreenNotificationSetting();
getEntryManager().updateNotifications();
}
}
};
protected final BroadcastReceiver mBaseBroadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (Intent.ACTION_USER_SWITCHED.equals(action)) {
mCurrentUserId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, -1);
updateCurrentProfilesCache();
Log.v(TAG, "userId " + mCurrentUserId + " is in the house");
updateLockscreenNotificationSetting();
updatePublicMode();
// The filtering needs to happen before the update call below in order to make sure
// the presenter has the updated notifications from the new user
getEntryManager().getNotificationData().filterAndSort();
mPresenter.onUserSwitched(mCurrentUserId);
for (UserChangedListener listener : mListeners) {
listener.onUserChanged(mCurrentUserId);
}
} else if (Intent.ACTION_USER_ADDED.equals(action)) {
updateCurrentProfilesCache();
} else if (Intent.ACTION_USER_UNLOCKED.equals(action)) {
// Start the overview connection to the launcher service
Dependency.get(OverviewProxyService.class).startConnectionToCurrentUser();
} else if (NOTIFICATION_UNLOCKED_BY_WORK_CHALLENGE_ACTION.equals(action)) {
final IntentSender intentSender = intent.getParcelableExtra(Intent.EXTRA_INTENT);
final String notificationKey = intent.getStringExtra(Intent.EXTRA_INDEX);
if (intentSender != null) {
try {
mContext.startIntentSender(intentSender, null, 0, 0, 0);
} catch (IntentSender.SendIntentException e) {
/* ignore */
}
}
if (notificationKey != null) {
final int count =
getEntryManager().getNotificationData().getActiveNotifications().size();
final int rank = getEntryManager().getNotificationData().getRank(notificationKey);
NotificationVisibility.NotificationLocation location =
NotificationLogger.getNotificationLocation(
getEntryManager().getNotificationData().get(notificationKey));
final NotificationVisibility nv = NotificationVisibility.obtain(notificationKey,
rank, count, true, location);
try {
mBarService.onNotificationClick(notificationKey, nv);
} catch (RemoteException e) {
/* ignore */
}
}
}
}
};
protected final Context mContext;
protected final SparseArray mCurrentProfiles = new SparseArray<>();
protected int mCurrentUserId = 0;
protected NotificationPresenter mPresenter;
protected ContentObserver mLockscreenSettingsObserver;
protected ContentObserver mSettingsObserver;
private NotificationEntryManager getEntryManager() {
if (mEntryManager == null) {
mEntryManager = Dependency.get(NotificationEntryManager.class);
}
return mEntryManager;
}
public NotificationLockscreenUserManagerImpl(Context context) {
mContext = context;
mDevicePolicyManager = (DevicePolicyManager) mContext.getSystemService(
Context.DEVICE_POLICY_SERVICE);
mUserManager = (UserManager) mContext.getSystemService(Context.USER_SERVICE);
mCurrentUserId = ActivityManager.getCurrentUser();
mBarService = IStatusBarService.Stub.asInterface(
ServiceManager.getService(Context.STATUS_BAR_SERVICE));
Dependency.get(StatusBarStateController.class).addCallback(this);
mLockPatternUtils = new LockPatternUtils(context);
mKeyguardManager = context.getSystemService(KeyguardManager.class);
}
public void setUpWithPresenter(NotificationPresenter presenter) {
mPresenter = presenter;
mLockscreenSettingsObserver = new ContentObserver(Dependency.get(Dependency.MAIN_HANDLER)) {
@Override
public void onChange(boolean selfChange) {
// We don't know which user changed LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS or
// LOCK_SCREEN_SHOW_NOTIFICATIONS, so we just dump our cache ...
mUsersAllowingPrivateNotifications.clear();
mUsersAllowingNotifications.clear();
// ... and refresh all the notifications
updateLockscreenNotificationSetting();
getEntryManager().updateNotifications();
}
};
mSettingsObserver = new ContentObserver(Dependency.get(Dependency.MAIN_HANDLER)) {
@Override
public void onChange(boolean selfChange) {
updateLockscreenNotificationSetting();
if (mDeviceProvisionedController.isDeviceProvisioned()) {
getEntryManager().updateNotifications();
}
}
};
mContext.getContentResolver().registerContentObserver(
Settings.Secure.getUriFor(Settings.Secure.LOCK_SCREEN_SHOW_NOTIFICATIONS), false,
mLockscreenSettingsObserver,
UserHandle.USER_ALL);
mContext.getContentResolver().registerContentObserver(
Settings.Secure.getUriFor(Settings.Secure.LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS),
true,
mLockscreenSettingsObserver,
UserHandle.USER_ALL);
mContext.getContentResolver().registerContentObserver(
Settings.Global.getUriFor(Settings.Global.ZEN_MODE), false,
mSettingsObserver);
if (ENABLE_LOCK_SCREEN_ALLOW_REMOTE_INPUT) {
mContext.getContentResolver().registerContentObserver(
Settings.Secure.getUriFor(Settings.Secure.LOCK_SCREEN_ALLOW_REMOTE_INPUT),
false,
mSettingsObserver,
UserHandle.USER_ALL);
}
mContext.registerReceiverAsUser(mAllUsersReceiver, UserHandle.ALL,
new IntentFilter(ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED),
null, null);
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_USER_SWITCHED);
filter.addAction(Intent.ACTION_USER_ADDED);
filter.addAction(Intent.ACTION_USER_UNLOCKED);
mContext.registerReceiver(mBaseBroadcastReceiver, filter);
IntentFilter internalFilter = new IntentFilter();
internalFilter.addAction(NOTIFICATION_UNLOCKED_BY_WORK_CHALLENGE_ACTION);
mContext.registerReceiver(mBaseBroadcastReceiver, internalFilter, PERMISSION_SELF, null);
updateCurrentProfilesCache();
mSettingsObserver.onChange(false); // set up
}
public boolean shouldShowLockscreenNotifications() {
return mShowLockscreenNotifications;
}
public boolean shouldAllowLockscreenRemoteInput() {
return mAllowLockscreenRemoteInput;
}
public boolean isCurrentProfile(int userId) {
synchronized (mCurrentProfiles) {
return userId == UserHandle.USER_ALL || mCurrentProfiles.get(userId) != null;
}
}
/**
* Returns true if notifications are temporarily disabled for this user for security reasons,
* regardless of the normal settings for that user.
*/
private boolean shouldTemporarilyHideNotifications(int userId) {
if (userId == UserHandle.USER_ALL) {
userId = mCurrentUserId;
}
return KeyguardUpdateMonitor.getInstance(mContext).isUserInLockdown(userId);
}
/**
* Returns true if we're on a secure lockscreen and the user wants to hide notification data.
* If so, notifications should be hidden.
*/
public boolean shouldHideNotifications(int userId) {
return isLockscreenPublicMode(userId) && !userAllowsNotificationsInPublic(userId)
|| (userId != mCurrentUserId && shouldHideNotifications(mCurrentUserId))
|| shouldTemporarilyHideNotifications(userId);
}
/**
* Returns true if we're on a secure lockscreen and the user wants to hide notifications via
* package-specific override.
*/
public boolean shouldHideNotifications(String key) {
if (getEntryManager() == null) {
Log.wtf(TAG, "mEntryManager was null!", new Throwable());
return true;
}
return isLockscreenPublicMode(mCurrentUserId)
&& getEntryManager().getNotificationData().getVisibilityOverride(key) ==
Notification.VISIBILITY_SECRET;
}
public boolean shouldShowOnKeyguard(NotificationEntry entry) {
if (getEntryManager() == null) {
Log.wtf(TAG, "mEntryManager was null!", new Throwable());
return false;
}
boolean exceedsPriorityThreshold;
if (NotificationUtils.useNewInterruptionModel(mContext)
&& hideSilentNotificationsOnLockscreen()) {
exceedsPriorityThreshold = entry.isTopBucket();
} else {
exceedsPriorityThreshold =
!getEntryManager().getNotificationData().isAmbient(entry.key);
}
return mShowLockscreenNotifications && exceedsPriorityThreshold;
}
private boolean hideSilentNotificationsOnLockscreen() {
return Settings.Secure.getInt(mContext.getContentResolver(),
Settings.Secure.LOCK_SCREEN_SHOW_SILENT_NOTIFICATIONS, 1) == 0;
}
private void setShowLockscreenNotifications(boolean show) {
mShowLockscreenNotifications = show;
}
private void setLockscreenAllowRemoteInput(boolean allowLockscreenRemoteInput) {
mAllowLockscreenRemoteInput = allowLockscreenRemoteInput;
}
protected void updateLockscreenNotificationSetting() {
final boolean show = Settings.Secure.getIntForUser(mContext.getContentResolver(),
Settings.Secure.LOCK_SCREEN_SHOW_NOTIFICATIONS,
1,
mCurrentUserId) != 0;
final int dpmFlags = mDevicePolicyManager.getKeyguardDisabledFeatures(
null /* admin */, mCurrentUserId);
final boolean allowedByDpm = (dpmFlags
& DevicePolicyManager.KEYGUARD_DISABLE_SECURE_NOTIFICATIONS) == 0;
setShowLockscreenNotifications(show && allowedByDpm);
if (ENABLE_LOCK_SCREEN_ALLOW_REMOTE_INPUT) {
final boolean remoteInput = Settings.Secure.getIntForUser(mContext.getContentResolver(),
Settings.Secure.LOCK_SCREEN_ALLOW_REMOTE_INPUT,
0,
mCurrentUserId) != 0;
final boolean remoteInputDpm =
(dpmFlags & DevicePolicyManager.KEYGUARD_DISABLE_REMOTE_INPUT) == 0;
setLockscreenAllowRemoteInput(remoteInput && remoteInputDpm);
} else {
setLockscreenAllowRemoteInput(false);
}
}
/**
* Has the given user chosen to allow their private (full) notifications to be shown even
* when the lockscreen is in "public" (secure & locked) mode?
*/
public boolean userAllowsPrivateNotificationsInPublic(int userHandle) {
if (userHandle == UserHandle.USER_ALL) {
return true;
}
if (mUsersAllowingPrivateNotifications.indexOfKey(userHandle) < 0) {
final boolean allowedByUser = 0 != Settings.Secure.getIntForUser(
mContext.getContentResolver(),
Settings.Secure.LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS, 0, userHandle);
final boolean allowedByDpm = adminAllowsKeyguardFeature(userHandle,
DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS);
final boolean allowed = allowedByUser && allowedByDpm;
mUsersAllowingPrivateNotifications.append(userHandle, allowed);
return allowed;
}
return mUsersAllowingPrivateNotifications.get(userHandle);
}
private boolean adminAllowsKeyguardFeature(int userHandle, int feature) {
if (userHandle == UserHandle.USER_ALL) {
return true;
}
final int dpmFlags =
mDevicePolicyManager.getKeyguardDisabledFeatures(null /* admin */, userHandle);
return (dpmFlags & feature) == 0;
}
/**
* Save the current "public" (locked and secure) state of the lockscreen.
*/
public void setLockscreenPublicMode(boolean publicMode, int userId) {
mLockscreenPublicMode.put(userId, publicMode);
}
public boolean isLockscreenPublicMode(int userId) {
if (userId == UserHandle.USER_ALL) {
return mLockscreenPublicMode.get(mCurrentUserId, false);
}
return mLockscreenPublicMode.get(userId, false);
}
@Override
public boolean needsSeparateWorkChallenge(int userId) {
return mUsersWithSeperateWorkChallenge.get(userId, false);
}
/**
* Has the given user chosen to allow notifications to be shown even when the lockscreen is in
* "public" (secure & locked) mode?
*/
private boolean userAllowsNotificationsInPublic(int userHandle) {
if (isCurrentProfile(userHandle) && userHandle != mCurrentUserId) {
return true;
}
if (mUsersAllowingNotifications.indexOfKey(userHandle) < 0) {
final boolean allowedByUser = 0 != Settings.Secure.getIntForUser(
mContext.getContentResolver(),
Settings.Secure.LOCK_SCREEN_SHOW_NOTIFICATIONS, 0, userHandle);
final boolean allowedByDpm = adminAllowsKeyguardFeature(userHandle,
DevicePolicyManager.KEYGUARD_DISABLE_SECURE_NOTIFICATIONS);
final boolean allowedBySystem = mKeyguardManager.getPrivateNotificationsAllowed();
final boolean allowed = allowedByUser && allowedByDpm && allowedBySystem;
mUsersAllowingNotifications.append(userHandle, allowed);
return allowed;
}
return mUsersAllowingNotifications.get(userHandle);
}
/** @return true if the entry needs redaction when on the lockscreen. */
public boolean needsRedaction(NotificationEntry ent) {
int userId = ent.notification.getUserId();
boolean currentUserWantsRedaction = !userAllowsPrivateNotificationsInPublic(mCurrentUserId);
boolean notiUserWantsRedaction = !userAllowsPrivateNotificationsInPublic(userId);
boolean redactedLockscreen = currentUserWantsRedaction || notiUserWantsRedaction;
boolean notificationRequestsRedaction =
ent.notification.getNotification().visibility == Notification.VISIBILITY_PRIVATE;
boolean userForcesRedaction = packageHasVisibilityOverride(ent.notification.getKey());
return userForcesRedaction || notificationRequestsRedaction && redactedLockscreen;
}
private boolean packageHasVisibilityOverride(String key) {
if (getEntryManager() == null) {
Log.wtf(TAG, "mEntryManager was null!", new Throwable());
return true;
}
return getEntryManager().getNotificationData().getVisibilityOverride(key) ==
Notification.VISIBILITY_PRIVATE;
}
private void updateCurrentProfilesCache() {
synchronized (mCurrentProfiles) {
mCurrentProfiles.clear();
if (mUserManager != null) {
for (UserInfo user : mUserManager.getProfiles(mCurrentUserId)) {
mCurrentProfiles.put(user.id, user);
}
}
}
}
public boolean isAnyProfilePublicMode() {
for (int i = mCurrentProfiles.size() - 1; i >= 0; i--) {
if (isLockscreenPublicMode(mCurrentProfiles.valueAt(i).id)) {
return true;
}
}
return false;
}
/**
* Returns the current user id. This can change if the user is switched.
*/
public int getCurrentUserId() {
return mCurrentUserId;
}
public SparseArray getCurrentProfiles() {
return mCurrentProfiles;
}
@Override
public void onStateChanged(int newState) {
mState = newState;
updatePublicMode();
}
public void updatePublicMode() {
//TODO: I think there may be a race condition where mKeyguardViewManager.isShowing() returns
// false when it should be true. Therefore, if we are not on the SHADE, don't even bother
// asking if the keyguard is showing. We still need to check it though because showing the
// camera on the keyguard has a state of SHADE but the keyguard is still showing.
final boolean showingKeyguard = mState != StatusBarState.SHADE
|| mKeyguardMonitor.isShowing();
final boolean devicePublic = showingKeyguard && isSecure(getCurrentUserId());
// Look for public mode users. Users are considered public in either case of:
// - device keyguard is shown in secure mode;
// - profile is locked with a work challenge.
SparseArray currentProfiles = getCurrentProfiles();
mUsersWithSeperateWorkChallenge.clear();
for (int i = currentProfiles.size() - 1; i >= 0; i--) {
final int userId = currentProfiles.valueAt(i).id;
boolean isProfilePublic = devicePublic;
boolean needsSeparateChallenge = mLockPatternUtils.isSeparateProfileChallengeEnabled(
userId);
if (!devicePublic && userId != getCurrentUserId()
&& needsSeparateChallenge && isSecure(userId)) {
// Keyguard.isDeviceLocked is updated asynchronously, assume that all profiles
// with separate challenge are locked when keyguard is visible to avoid race.
isProfilePublic = showingKeyguard || mKeyguardManager.isDeviceLocked(userId);
}
setLockscreenPublicMode(isProfilePublic, userId);
mUsersWithSeperateWorkChallenge.put(userId, needsSeparateChallenge);
}
getEntryManager().updateNotifications();
}
@Override
public void addUserChangedListener(UserChangedListener listener) {
mListeners.add(listener);
}
// public void updatePublicMode() {
// //TODO: I think there may be a race condition where mKeyguardViewManager.isShowing() returns
// // false when it should be true. Therefore, if we are not on the SHADE, don't even bother
// // asking if the keyguard is showing. We still need to check it though because showing the
// // camera on the keyguard has a state of SHADE but the keyguard is still showing.
// final boolean showingKeyguard = mState != StatusBarState.SHADE
// || mKeyguardMonitor.isShowing();
// final boolean devicePublic = showingKeyguard && isSecure(getCurrentUserId());
//
//
// // Look for public mode users. Users are considered public in either case of:
// // - device keyguard is shown in secure mode;
// // - profile is locked with a work challenge.
// SparseArray currentProfiles = getCurrentProfiles();
// for (int i = currentProfiles.size() - 1; i >= 0; i--) {
// final int userId = currentProfiles.valueAt(i).id;
// boolean isProfilePublic = devicePublic;
// if (!devicePublic && userId != getCurrentUserId()) {
// // We can't rely on KeyguardManager#isDeviceLocked() for unified profile challenge
// // due to a race condition where this code could be called before
// // TrustManagerService updates its internal records, resulting in an incorrect
// // state being cached in mLockscreenPublicMode. (b/35951989)
// if (mLockPatternUtils.isSeparateProfileChallengeEnabled(userId)
// && isSecure(userId)) {
// isProfilePublic = mKeyguardManager.isDeviceLocked(userId);
// }
// }
// setLockscreenPublicMode(isProfilePublic, userId);
// }
// }
private boolean isSecure(int userId) {
return mKeyguardMonitor.isSecure() || mLockPatternUtils.isSecure(userId);
}
@Override
public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
pw.println("NotificationLockscreenUserManager state:");
pw.print(" mCurrentUserId=");
pw.println(mCurrentUserId);
pw.print(" mShowLockscreenNotifications=");
pw.println(mShowLockscreenNotifications);
pw.print(" mAllowLockscreenRemoteInput=");
pw.println(mAllowLockscreenRemoteInput);
pw.print(" mCurrentProfiles=");
for (int i = mCurrentProfiles.size() - 1; i >= 0; i--) {
final int userId = mCurrentProfiles.valueAt(i).id;
pw.print("" + userId + " ");
}
pw.println();
}
}
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