/*
* Copyright (C) 2008 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.keyguard;
import android.app.ActivityManagerNative;
import android.app.AlarmManager;
import android.app.IUserSwitchObserver;
import android.app.PendingIntent;
import android.app.admin.DevicePolicyManager;
import android.app.trust.TrustManager;
import android.content.BroadcastReceiver;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.database.ContentObserver;
import android.graphics.Bitmap;
import static android.os.BatteryManager.BATTERY_STATUS_FULL;
import static android.os.BatteryManager.BATTERY_STATUS_UNKNOWN;
import static android.os.BatteryManager.BATTERY_HEALTH_UNKNOWN;
import static android.os.BatteryManager.EXTRA_STATUS;
import static android.os.BatteryManager.EXTRA_PLUGGED;
import static android.os.BatteryManager.EXTRA_LEVEL;
import static android.os.BatteryManager.EXTRA_HEALTH;
import android.media.AudioManager;
import android.os.BatteryManager;
import android.os.Handler;
import android.os.IRemoteCallback;
import android.os.Message;
import android.os.RemoteException;
import android.os.UserHandle;
import android.provider.Settings;
import com.android.internal.telephony.IccCardConstants;
import com.android.internal.telephony.IccCardConstants.State;
import com.android.internal.telephony.PhoneConstants;
import com.android.internal.telephony.TelephonyIntents;
import com.android.internal.telephony.TelephonyProperties;
import android.service.fingerprint.FingerprintManager;
import android.service.fingerprint.FingerprintManagerReceiver;
import android.service.fingerprint.FingerprintUtils;
import android.telephony.SubscriptionInfo;
import android.telephony.SubscriptionManager;
import android.telephony.SubscriptionManager.OnSubscriptionsChangedListener;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.util.SparseBooleanArray;
import com.google.android.collect.Lists;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map.Entry;
/**
* Watches for updates that may be interesting to the keyguard, and provides
* the up to date information as well as a registration for callbacks that care
* to be updated.
*
* Note: under time crunch, this has been extended to include some stuff that
* doesn't really belong here. see {@link #handleBatteryUpdate} where it shutdowns
* the device, and {@link #getFailedUnlockAttempts()}, {@link #reportFailedAttempt()}
* and {@link #clearFailedUnlockAttempts()}. Maybe we should rename this 'KeyguardContext'...
*/
public class KeyguardUpdateMonitor implements TrustManager.TrustListener {
private static final String TAG = "KeyguardUpdateMonitor";
private static final boolean DEBUG = KeyguardConstants.DEBUG;
private static final boolean DEBUG_SIM_STATES = KeyguardConstants.DEBUG_SIM_STATES;
private static final int FAILED_BIOMETRIC_UNLOCK_ATTEMPTS_BEFORE_BACKUP = 3;
private static final int LOW_BATTERY_THRESHOLD = 20;
private static final String ACTION_FACE_UNLOCK_STARTED
= "com.android.facelock.FACE_UNLOCK_STARTED";
private static final String ACTION_FACE_UNLOCK_STOPPED
= "com.android.facelock.FACE_UNLOCK_STOPPED";
// Callback messages
private static final int MSG_TIME_UPDATE = 301;
private static final int MSG_BATTERY_UPDATE = 302;
private static final int MSG_SIM_STATE_CHANGE = 304;
private static final int MSG_RINGER_MODE_CHANGED = 305;
private static final int MSG_PHONE_STATE_CHANGED = 306;
private static final int MSG_CLOCK_VISIBILITY_CHANGED = 307;
private static final int MSG_DEVICE_PROVISIONED = 308;
private static final int MSG_DPM_STATE_CHANGED = 309;
private static final int MSG_USER_SWITCHING = 310;
private static final int MSG_USER_REMOVED = 311;
private static final int MSG_KEYGUARD_VISIBILITY_CHANGED = 312;
private static final int MSG_BOOT_COMPLETED = 313;
private static final int MSG_USER_SWITCH_COMPLETE = 314;
private static final int MSG_SET_CURRENT_CLIENT_ID = 315;
private static final int MSG_SET_PLAYBACK_STATE = 316;
private static final int MSG_USER_INFO_CHANGED = 317;
private static final int MSG_REPORT_EMERGENCY_CALL_ACTION = 318;
private static final int MSG_SCREEN_TURNED_ON = 319;
private static final int MSG_SCREEN_TURNED_OFF = 320;
private static final int MSG_KEYGUARD_BOUNCER_CHANGED = 322;
private static final int MSG_FINGERPRINT_PROCESSED = 323;
private static final int MSG_FINGERPRINT_ACQUIRED = 324;
private static final int MSG_FACE_UNLOCK_STATE_CHANGED = 325;
private static final int MSG_SIM_SUBSCRIPTION_INFO_CHANGED = 326;
private static KeyguardUpdateMonitor sInstance;
private final Context mContext;
HashMap<Integer, SimData> mSimDatas = new HashMap<Integer, SimData>();
private int mRingMode;
private int mPhoneState;
private boolean mKeyguardIsVisible;
private boolean mBouncer;
private boolean mBootCompleted;
// Device provisioning state
private boolean mDeviceProvisioned;
// Battery status
private BatteryStatus mBatteryStatus;
// Password attempts
private int mFailedAttempts = 0;
private int mFailedBiometricUnlockAttempts = 0;
private boolean mAlternateUnlockEnabled;
private boolean mClockVisible;
private final ArrayList<WeakReference<KeyguardUpdateMonitorCallback>>
mCallbacks = Lists.newArrayList();
private ContentObserver mDeviceProvisionedObserver;
private boolean mSwitchingUser;
private boolean mScreenOn;
private SubscriptionManager mSubscriptionManager;
private List<SubscriptionInfo> mSubscriptionInfo;
private final Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_TIME_UPDATE:
handleTimeUpdate();
break;
case MSG_BATTERY_UPDATE:
handleBatteryUpdate((BatteryStatus) msg.obj);
break;
case MSG_SIM_STATE_CHANGE:
handleSimStateChange(msg.arg1, msg.arg2, (State) msg.obj);
break;
case MSG_RINGER_MODE_CHANGED:
handleRingerModeChange(msg.arg1);
break;
case MSG_PHONE_STATE_CHANGED:
handlePhoneStateChanged((String) msg.obj);
break;
case MSG_CLOCK_VISIBILITY_CHANGED:
handleClockVisibilityChanged();
break;
case MSG_DEVICE_PROVISIONED:
handleDeviceProvisioned();
break;
case MSG_DPM_STATE_CHANGED:
handleDevicePolicyManagerStateChanged();
break;
case MSG_USER_SWITCHING:
handleUserSwitching(msg.arg1, (IRemoteCallback) msg.obj);
break;
case MSG_USER_SWITCH_COMPLETE:
handleUserSwitchComplete(msg.arg1);
break;
case MSG_USER_REMOVED:
handleUserRemoved(msg.arg1);
break;
case MSG_KEYGUARD_VISIBILITY_CHANGED:
handleKeyguardVisibilityChanged(msg.arg1);
break;
case MSG_KEYGUARD_BOUNCER_CHANGED:
handleKeyguardBouncerChanged(msg.arg1);
break;
case MSG_BOOT_COMPLETED:
handleBootCompleted();
break;
case MSG_USER_INFO_CHANGED:
handleUserInfoChanged(msg.arg1);
break;
case MSG_REPORT_EMERGENCY_CALL_ACTION:
handleReportEmergencyCallAction();
break;
case MSG_SCREEN_TURNED_OFF:
handleScreenTurnedOff(msg.arg1);
break;
case MSG_SCREEN_TURNED_ON:
handleScreenTurnedOn();
break;
case MSG_FINGERPRINT_ACQUIRED:
handleFingerprintAcquired(msg.arg1);
break;
case MSG_FINGERPRINT_PROCESSED:
handleFingerprintProcessed(msg.arg1);
break;
case MSG_FACE_UNLOCK_STATE_CHANGED:
handleFaceUnlockStateChanged(msg.arg1 != 0, msg.arg2);
break;
case MSG_SIM_SUBSCRIPTION_INFO_CHANGED:
handleSimSubscriptionInfoChanged();
break;
}
}
};
private OnSubscriptionsChangedListener mSubscriptionListener =
new OnSubscriptionsChangedListener() {
@Override
public void onSubscriptionsChanged() {
mHandler.sendEmptyMessage(MSG_SIM_SUBSCRIPTION_INFO_CHANGED);
}
};
private SparseBooleanArray mUserHasTrust = new SparseBooleanArray();
private SparseBooleanArray mUserTrustIsManaged = new SparseBooleanArray();
private SparseBooleanArray mUserFingerprintRecognized = new SparseBooleanArray();
private SparseBooleanArray mUserFaceUnlockRunning = new SparseBooleanArray();
@Override
public void onTrustChanged(boolean enabled, int userId, boolean initiatedByUser) {
mUserHasTrust.put(userId, enabled);
for (int i = 0; i < mCallbacks.size(); i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onTrustChanged(userId);
if (enabled && initiatedByUser) {
cb.onTrustInitiatedByUser(userId);
}
}
}
}
protected void handleSimSubscriptionInfoChanged() {
if (DEBUG_SIM_STATES) {
Log.v(TAG, "onSubscriptionInfoChanged()");
List<SubscriptionInfo> sil = mSubscriptionManager.getActiveSubscriptionInfoList();
if (sil != null) {
for (SubscriptionInfo subInfo : sil) {
Log.v(TAG, "SubInfo:" + subInfo);
}
} else {
Log.v(TAG, "onSubscriptionInfoChanged: list is null");
}
}
List<SubscriptionInfo> subscriptionInfos = getSubscriptionInfo(true /* forceReload */);
// Hack level over 9000: Because the subscription id is not yet valid when we see the
// first update in handleSimStateChange, we need to force refresh all all SIM states
// so the subscription id for them is consistent.
ArrayList<SubscriptionInfo> changedSubscriptions = new ArrayList<>();
for (int i = 0; i < subscriptionInfos.size(); i++) {
SubscriptionInfo info = subscriptionInfos.get(i);
boolean changed = refreshSimState(info.getSubscriptionId(), info.getSimSlotIndex());
if (changed) {
changedSubscriptions.add(info);
}
}
for (int i = 0; i < changedSubscriptions.size(); i++) {
SimData data = mSimDatas.get(changedSubscriptions.get(i).getSubscriptionId());
for (int j = 0; j < mCallbacks.size(); j++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(j).get();
if (cb != null) {
cb.onSimStateChanged(data.subId, data.slotId, data.simState);
}
}
}
for (int j = 0; j < mCallbacks.size(); j++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(j).get();
if (cb != null) {
cb.onRefreshCarrierInfo();
}
}
}
/** @return List of SubscriptionInfo records, maybe empty but never null */
List<SubscriptionInfo> getSubscriptionInfo(boolean forceReload) {
List<SubscriptionInfo> sil = mSubscriptionInfo;
if (sil == null || forceReload) {
sil = mSubscriptionManager.getActiveSubscriptionInfoList();
}
if (sil == null) {
// getActiveSubscriptionInfoList was null callers expect an empty list.
mSubscriptionInfo = new ArrayList<SubscriptionInfo>();
} else {
mSubscriptionInfo = sil;
}
return mSubscriptionInfo;
}
@Override
public void onTrustManagedChanged(boolean managed, int userId) {
mUserTrustIsManaged.put(userId, managed);
for (int i = 0; i < mCallbacks.size(); i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onTrustManagedChanged(userId);
}
}
}
private void onFingerprintRecognized(int userId) {
mUserFingerprintRecognized.put(userId, true);
for (int i = 0; i < mCallbacks.size(); i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onFingerprintRecognized(userId);
}
}
}
private void handleFingerprintProcessed(int fingerprintId) {
if (fingerprintId == 0) return; // not a valid fingerprint
final int userId;
try {
userId = ActivityManagerNative.getDefault().getCurrentUser().id;
} catch (RemoteException e) {
Log.e(TAG, "Failed to get current user id: ", e);
return;
}
if (isFingerprintDisabled(userId)) {
Log.d(TAG, "Fingerprint disabled by DPM for userId: " + userId);
return;
}
final ContentResolver res = mContext.getContentResolver();
final int ids[] = FingerprintUtils.getFingerprintIdsForUser(res, userId);
for (int i = 0; i < ids.length; i++) {
if (ids[i] == fingerprintId) {
onFingerprintRecognized(userId);
}
}
}
private void handleFingerprintAcquired(int info) {
for (int i = 0; i < mCallbacks.size(); i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onFingerprintAcquired(info);
}
}
}
private void handleFaceUnlockStateChanged(boolean running, int userId) {
mUserFaceUnlockRunning.put(userId, running);
for (int i = 0; i < mCallbacks.size(); i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onFaceUnlockStateChanged(running, userId);
}
}
}
public boolean isFaceUnlockRunning(int userId) {
return mUserFaceUnlockRunning.get(userId);
}
private boolean isTrustDisabled(int userId) {
final DevicePolicyManager dpm =
(DevicePolicyManager) mContext.getSystemService(Context.DEVICE_POLICY_SERVICE);
if (dpm != null) {
// TODO once UI is finalized
final boolean disabledByGlobalActions = false;
final boolean disabledBySettings = false;
// Don't allow trust agent if device is secured with a SIM PIN. This is here
// mainly because there's no other way to prompt the user to enter their SIM PIN
// once they get past the keyguard screen.
final boolean disabledBySimPin = isSimPinSecure();
final boolean disabledByDpm = (dpm.getKeyguardDisabledFeatures(null, userId)
& DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0;
return disabledByDpm || disabledByGlobalActions || disabledBySettings
|| disabledBySimPin;
}
return false;
}
private boolean isFingerprintDisabled(int userId) {
final DevicePolicyManager dpm =
(DevicePolicyManager) mContext.getSystemService(Context.DEVICE_POLICY_SERVICE);
return dpm != null && (dpm.getKeyguardDisabledFeatures(null, userId)
& DevicePolicyManager.KEYGUARD_DISABLE_FINGERPRINT) != 0;
}
public boolean getUserHasTrust(int userId) {
return !isTrustDisabled(userId) && mUserHasTrust.get(userId)
|| mUserFingerprintRecognized.get(userId);
}
public boolean getUserTrustIsManaged(int userId) {
return mUserTrustIsManaged.get(userId) && !isTrustDisabled(userId);
}
static class DisplayClientState {
public int clientGeneration;
public boolean clearing;
public PendingIntent intent;
public int playbackState;
public long playbackEventTime;
}
private DisplayClientState mDisplayClientState = new DisplayClientState();
private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (DEBUG) Log.d(TAG, "received broadcast " + action);
if (Intent.ACTION_TIME_TICK.equals(action)
|| Intent.ACTION_TIME_CHANGED.equals(action)
|| Intent.ACTION_TIMEZONE_CHANGED.equals(action)) {
mHandler.sendEmptyMessage(MSG_TIME_UPDATE);
} else if (Intent.ACTION_BATTERY_CHANGED.equals(action)) {
final int status = intent.getIntExtra(EXTRA_STATUS, BATTERY_STATUS_UNKNOWN);
final int plugged = intent.getIntExtra(EXTRA_PLUGGED, 0);
final int level = intent.getIntExtra(EXTRA_LEVEL, 0);
final int health = intent.getIntExtra(EXTRA_HEALTH, BATTERY_HEALTH_UNKNOWN);
final Message msg = mHandler.obtainMessage(
MSG_BATTERY_UPDATE, new BatteryStatus(status, level, plugged, health));
mHandler.sendMessage(msg);
} else if (TelephonyIntents.ACTION_SIM_STATE_CHANGED.equals(action)) {
SimData args = SimData.fromIntent(intent);
if (DEBUG_SIM_STATES) {
Log.v(TAG, "action " + action
+ " state: " + intent.getStringExtra(IccCardConstants.INTENT_KEY_ICC_STATE)
+ " slotId: " + args.slotId + " subid: " + args.subId);
}
mHandler.obtainMessage(MSG_SIM_STATE_CHANGE, args.subId, args.slotId, args.simState)
.sendToTarget();
} else if (AudioManager.RINGER_MODE_CHANGED_ACTION.equals(action)) {
mHandler.sendMessage(mHandler.obtainMessage(MSG_RINGER_MODE_CHANGED,
intent.getIntExtra(AudioManager.EXTRA_RINGER_MODE, -1), 0));
} else if (TelephonyManager.ACTION_PHONE_STATE_CHANGED.equals(action)) {
String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE);
mHandler.sendMessage(mHandler.obtainMessage(MSG_PHONE_STATE_CHANGED, state));
} else if (Intent.ACTION_USER_REMOVED.equals(action)) {
mHandler.sendMessage(mHandler.obtainMessage(MSG_USER_REMOVED,
intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0), 0));
} else if (Intent.ACTION_BOOT_COMPLETED.equals(action)) {
dispatchBootCompleted();
}
}
};
private final BroadcastReceiver mBroadcastAllReceiver = new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (AlarmManager.ACTION_NEXT_ALARM_CLOCK_CHANGED.equals(action)) {
mHandler.sendEmptyMessage(MSG_TIME_UPDATE);
} else if (Intent.ACTION_USER_INFO_CHANGED.equals(action)) {
mHandler.sendMessage(mHandler.obtainMessage(MSG_USER_INFO_CHANGED,
intent.getIntExtra(Intent.EXTRA_USER_HANDLE, getSendingUserId()), 0));
} else if (ACTION_FACE_UNLOCK_STARTED.equals(action)) {
mHandler.sendMessage(mHandler.obtainMessage(MSG_FACE_UNLOCK_STATE_CHANGED, 1,
getSendingUserId()));
} else if (ACTION_FACE_UNLOCK_STOPPED.equals(action)) {
mHandler.sendMessage(mHandler.obtainMessage(MSG_FACE_UNLOCK_STATE_CHANGED, 0,
getSendingUserId()));
} else if (DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED
.equals(action)) {
mHandler.sendEmptyMessage(MSG_DPM_STATE_CHANGED);
}
}
};
private FingerprintManagerReceiver mFingerprintManagerReceiver =
new FingerprintManagerReceiver() {
@Override
public void onProcessed(int fingerprintId) {
mHandler.obtainMessage(MSG_FINGERPRINT_PROCESSED, fingerprintId, 0).sendToTarget();
};
@Override
public void onAcquired(int info) {
mHandler.obtainMessage(MSG_FINGERPRINT_ACQUIRED, info, 0).sendToTarget();
}
@Override
public void onError(int error) {
if (DEBUG) Log.w(TAG, "FingerprintManager reported error: " + error);
}
};
/**
* When we receive a
* {@link com.android.internal.telephony.TelephonyIntents#ACTION_SIM_STATE_CHANGED} broadcast,
* and then pass a result via our handler to {@link KeyguardUpdateMonitor#handleSimStateChange},
* we need a single object to pass to the handler. This class helps decode
* the intent and provide a {@link SimCard.State} result.
*/
private static class SimData {
public State simState;
public int slotId;
public int subId;
SimData(State state, int slot, int id) {
simState = state;
slotId = slot;
subId = id;
}
static SimData fromIntent(Intent intent) {
State state;
if (!TelephonyIntents.ACTION_SIM_STATE_CHANGED.equals(intent.getAction())) {
throw new IllegalArgumentException("only handles intent ACTION_SIM_STATE_CHANGED");
}
String stateExtra = intent.getStringExtra(IccCardConstants.INTENT_KEY_ICC_STATE);
int slotId = intent.getIntExtra(PhoneConstants.SLOT_KEY, 0);
int subId = intent.getIntExtra(PhoneConstants.SUBSCRIPTION_KEY,
SubscriptionManager.INVALID_SUBSCRIPTION_ID);
if (IccCardConstants.INTENT_VALUE_ICC_ABSENT.equals(stateExtra)) {
final String absentReason = intent
.getStringExtra(IccCardConstants.INTENT_KEY_LOCKED_REASON);
if (IccCardConstants.INTENT_VALUE_ABSENT_ON_PERM_DISABLED.equals(
absentReason)) {
state = IccCardConstants.State.PERM_DISABLED;
} else {
state = IccCardConstants.State.ABSENT;
}
} else if (IccCardConstants.INTENT_VALUE_ICC_READY.equals(stateExtra)) {
state = IccCardConstants.State.READY;
} else if (IccCardConstants.INTENT_VALUE_ICC_LOCKED.equals(stateExtra)) {
final String lockedReason = intent
.getStringExtra(IccCardConstants.INTENT_KEY_LOCKED_REASON);
if (IccCardConstants.INTENT_VALUE_LOCKED_ON_PIN.equals(lockedReason)) {
state = IccCardConstants.State.PIN_REQUIRED;
} else if (IccCardConstants.INTENT_VALUE_LOCKED_ON_PUK.equals(lockedReason)) {
state = IccCardConstants.State.PUK_REQUIRED;
} else {
state = IccCardConstants.State.UNKNOWN;
}
} else if (IccCardConstants.INTENT_VALUE_LOCKED_NETWORK.equals(stateExtra)) {
state = IccCardConstants.State.NETWORK_LOCKED;
} else if (IccCardConstants.INTENT_VALUE_ICC_LOADED.equals(stateExtra)
|| IccCardConstants.INTENT_VALUE_ICC_IMSI.equals(stateExtra)) {
// This is required because telephony doesn't return to "READY" after
// these state transitions. See bug 7197471.
state = IccCardConstants.State.READY;
} else {
state = IccCardConstants.State.UNKNOWN;
}
return new SimData(state, slotId, subId);
}
public String toString() {
return "SimData{state=" + simState + ",slotId=" + slotId + ",subId=" + subId + "}";
}
}
public static class BatteryStatus {
public final int status;
public final int level;
public final int plugged;
public final int health;
public BatteryStatus(int status, int level, int plugged, int health) {
this.status = status;
this.level = level;
this.plugged = plugged;
this.health = health;
}
/**
* Determine whether the device is plugged in (USB, power, or wireless).
* @return true if the device is plugged in.
*/
public boolean isPluggedIn() {
return plugged == BatteryManager.BATTERY_PLUGGED_AC
|| plugged == BatteryManager.BATTERY_PLUGGED_USB
|| plugged == BatteryManager.BATTERY_PLUGGED_WIRELESS;
}
/**
* Whether or not the device is charged. Note that some devices never return 100% for
* battery level, so this allows either battery level or status to determine if the
* battery is charged.
* @return true if the device is charged
*/
public boolean isCharged() {
return status == BATTERY_STATUS_FULL || level >= 100;
}
/**
* Whether battery is low and needs to be charged.
* @return true if battery is low
*/
public boolean isBatteryLow() {
return level < LOW_BATTERY_THRESHOLD;
}
}
public static KeyguardUpdateMonitor getInstance(Context context) {
if (sInstance == null) {
sInstance = new KeyguardUpdateMonitor(context);
}
return sInstance;
}
protected void handleScreenTurnedOn() {
final int count = mCallbacks.size();
for (int i = 0; i < count; i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onScreenTurnedOn();
}
}
}
protected void handleScreenTurnedOff(int arg1) {
clearFingerprintRecognized();
final int count = mCallbacks.size();
for (int i = 0; i < count; i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onScreenTurnedOff(arg1);
}
}
}
/**
* IMPORTANT: Must be called from UI thread.
*/
public void dispatchSetBackground(Bitmap bmp) {
if (DEBUG) Log.d(TAG, "dispatchSetBackground");
final int count = mCallbacks.size();
for (int i = 0; i < count; i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onSetBackground(bmp);
}
}
}
private void handleUserInfoChanged(int userId) {
for (int i = 0; i < mCallbacks.size(); i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onUserInfoChanged(userId);
}
}
}
private KeyguardUpdateMonitor(Context context) {
mContext = context;
mSubscriptionManager = SubscriptionManager.from(context);
mDeviceProvisioned = isDeviceProvisionedInSettingsDb();
// Since device can't be un-provisioned, we only need to register a content observer
// to update mDeviceProvisioned when we are...
if (!mDeviceProvisioned) {
watchForDeviceProvisioning();
}
// Take a guess at initial SIM state, battery status and PLMN until we get an update
mBatteryStatus = new BatteryStatus(BATTERY_STATUS_UNKNOWN, 100, 0, 0);
// Watch for interesting updates
final IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_TIME_TICK);
filter.addAction(Intent.ACTION_TIME_CHANGED);
filter.addAction(Intent.ACTION_BATTERY_CHANGED);
filter.addAction(Intent.ACTION_TIMEZONE_CHANGED);
filter.addAction(TelephonyIntents.ACTION_SIM_STATE_CHANGED);
filter.addAction(TelephonyManager.ACTION_PHONE_STATE_CHANGED);
filter.addAction(AudioManager.RINGER_MODE_CHANGED_ACTION);
filter.addAction(Intent.ACTION_USER_REMOVED);
context.registerReceiver(mBroadcastReceiver, filter);
final IntentFilter bootCompleteFilter = new IntentFilter();
bootCompleteFilter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY);
bootCompleteFilter.addAction(Intent.ACTION_BOOT_COMPLETED);
context.registerReceiver(mBroadcastReceiver, bootCompleteFilter);
final IntentFilter allUserFilter = new IntentFilter();
allUserFilter.addAction(Intent.ACTION_USER_INFO_CHANGED);
allUserFilter.addAction(AlarmManager.ACTION_NEXT_ALARM_CLOCK_CHANGED);
allUserFilter.addAction(ACTION_FACE_UNLOCK_STARTED);
allUserFilter.addAction(ACTION_FACE_UNLOCK_STOPPED);
allUserFilter.addAction(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED);
context.registerReceiverAsUser(mBroadcastAllReceiver, UserHandle.ALL, allUserFilter,
null, null);
mSubscriptionManager.addOnSubscriptionsChangedListener(mSubscriptionListener);
try {
ActivityManagerNative.getDefault().registerUserSwitchObserver(
new IUserSwitchObserver.Stub() {
@Override
public void onUserSwitching(int newUserId, IRemoteCallback reply) {
mHandler.sendMessage(mHandler.obtainMessage(MSG_USER_SWITCHING,
newUserId, 0, reply));
mSwitchingUser = true;
}
@Override
public void onUserSwitchComplete(int newUserId) throws RemoteException {
mHandler.sendMessage(mHandler.obtainMessage(MSG_USER_SWITCH_COMPLETE,
newUserId, 0));
mSwitchingUser = false;
}
});
} catch (RemoteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
TrustManager trustManager = (TrustManager) context.getSystemService(Context.TRUST_SERVICE);
trustManager.registerTrustListener(this);
FingerprintManager fpm;
fpm = (FingerprintManager) context.getSystemService(Context.FINGERPRINT_SERVICE);
fpm.startListening(mFingerprintManagerReceiver);
}
private boolean isDeviceProvisionedInSettingsDb() {
return Settings.Global.getInt(mContext.getContentResolver(),
Settings.Global.DEVICE_PROVISIONED, 0) != 0;
}
private void watchForDeviceProvisioning() {
mDeviceProvisionedObserver = new ContentObserver(mHandler) {
@Override
public void onChange(boolean selfChange) {
super.onChange(selfChange);
mDeviceProvisioned = isDeviceProvisionedInSettingsDb();
if (mDeviceProvisioned) {
mHandler.sendEmptyMessage(MSG_DEVICE_PROVISIONED);
}
if (DEBUG) Log.d(TAG, "DEVICE_PROVISIONED state = " + mDeviceProvisioned);
}
};
mContext.getContentResolver().registerContentObserver(
Settings.Global.getUriFor(Settings.Global.DEVICE_PROVISIONED),
false, mDeviceProvisionedObserver);
// prevent a race condition between where we check the flag and where we register the
// observer by grabbing the value once again...
boolean provisioned = isDeviceProvisionedInSettingsDb();
if (provisioned != mDeviceProvisioned) {
mDeviceProvisioned = provisioned;
if (mDeviceProvisioned) {
mHandler.sendEmptyMessage(MSG_DEVICE_PROVISIONED);
}
}
}
/**
* Handle {@link #MSG_DPM_STATE_CHANGED}
*/
protected void handleDevicePolicyManagerStateChanged() {
for (int i = mCallbacks.size() - 1; i >= 0; i--) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onDevicePolicyManagerStateChanged();
}
}
}
/**
* Handle {@link #MSG_USER_SWITCHING}
*/
protected void handleUserSwitching(int userId, IRemoteCallback reply) {
for (int i = 0; i < mCallbacks.size(); i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onUserSwitching(userId);
}
}
try {
reply.sendResult(null);
} catch (RemoteException e) {
}
}
/**
* Handle {@link #MSG_USER_SWITCH_COMPLETE}
*/
protected void handleUserSwitchComplete(int userId) {
for (int i = 0; i < mCallbacks.size(); i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onUserSwitchComplete(userId);
}
}
}
/**
* This is exposed since {@link Intent#ACTION_BOOT_COMPLETED} is not sticky. If
* keyguard crashes sometime after boot, then it will never receive this
* broadcast and hence not handle the event. This method is ultimately called by
* PhoneWindowManager in this case.
*/
public void dispatchBootCompleted() {
mHandler.sendEmptyMessage(MSG_BOOT_COMPLETED);
}
/**
* Handle {@link #MSG_BOOT_COMPLETED}
*/
protected void handleBootCompleted() {
if (mBootCompleted) return;
mBootCompleted = true;
for (int i = 0; i < mCallbacks.size(); i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onBootCompleted();
}
}
}
/**
* We need to store this state in the KeyguardUpdateMonitor since this class will not be
* destroyed.
*/
public boolean hasBootCompleted() {
return mBootCompleted;
}
/**
* Handle {@link #MSG_USER_REMOVED}
*/
protected void handleUserRemoved(int userId) {
for (int i = 0; i < mCallbacks.size(); i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onUserRemoved(userId);
}
}
}
/**
* Handle {@link #MSG_DEVICE_PROVISIONED}
*/
protected void handleDeviceProvisioned() {
for (int i = 0; i < mCallbacks.size(); i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onDeviceProvisioned();
}
}
if (mDeviceProvisionedObserver != null) {
// We don't need the observer anymore...
mContext.getContentResolver().unregisterContentObserver(mDeviceProvisionedObserver);
mDeviceProvisionedObserver = null;
}
}
/**
* Handle {@link #MSG_PHONE_STATE_CHANGED}
*/
protected void handlePhoneStateChanged(String newState) {
if (DEBUG) Log.d(TAG, "handlePhoneStateChanged(" + newState + ")");
if (TelephonyManager.EXTRA_STATE_IDLE.equals(newState)) {
mPhoneState = TelephonyManager.CALL_STATE_IDLE;
} else if (TelephonyManager.EXTRA_STATE_OFFHOOK.equals(newState)) {
mPhoneState = TelephonyManager.CALL_STATE_OFFHOOK;
} else if (TelephonyManager.EXTRA_STATE_RINGING.equals(newState)) {
mPhoneState = TelephonyManager.CALL_STATE_RINGING;
}
for (int i = 0; i < mCallbacks.size(); i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onPhoneStateChanged(mPhoneState);
}
}
}
/**
* Handle {@link #MSG_RINGER_MODE_CHANGED}
*/
protected void handleRingerModeChange(int mode) {
if (DEBUG) Log.d(TAG, "handleRingerModeChange(" + mode + ")");
mRingMode = mode;
for (int i = 0; i < mCallbacks.size(); i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onRingerModeChanged(mode);
}
}
}
/**
* Handle {@link #MSG_TIME_UPDATE}
*/
private void handleTimeUpdate() {
if (DEBUG) Log.d(TAG, "handleTimeUpdate");
for (int i = 0; i < mCallbacks.size(); i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onTimeChanged();
}
}
}
/**
* Handle {@link #MSG_BATTERY_UPDATE}
*/
private void handleBatteryUpdate(BatteryStatus status) {
if (DEBUG) Log.d(TAG, "handleBatteryUpdate");
final boolean batteryUpdateInteresting = isBatteryUpdateInteresting(mBatteryStatus, status);
mBatteryStatus = status;
if (batteryUpdateInteresting) {
for (int i = 0; i < mCallbacks.size(); i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onRefreshBatteryInfo(status);
}
}
}
}
/**
* Handle {@link #MSG_SIM_STATE_CHANGE}
*/
private void handleSimStateChange(int subId, int slotId, State state) {
if (DEBUG_SIM_STATES) {
Log.d(TAG, "handleSimStateChange(subId=" + subId + ", slotId="
+ slotId + ", state=" + state +")");
}
if (!SubscriptionManager.isValidSubscriptionId(subId)) {
Log.w(TAG, "invalid subId in handleSimStateChange()");
return;
}
SimData data = mSimDatas.get(subId);
final boolean changed;
if (data == null) {
data = new SimData(state, slotId, subId);
mSimDatas.put(subId, data);
changed = true; // no data yet; force update
} else {
changed = (data.simState != state || data.subId != subId || data.slotId != slotId);
data.simState = state;
data.subId = subId;
data.slotId = slotId;
}
if (changed && state != State.UNKNOWN) {
for (int i = 0; i < mCallbacks.size(); i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onSimStateChanged(subId, slotId, state);
}
}
}
}
/**
* Handle {@link #MSG_CLOCK_VISIBILITY_CHANGED}
*/
private void handleClockVisibilityChanged() {
if (DEBUG) Log.d(TAG, "handleClockVisibilityChanged()");
for (int i = 0; i < mCallbacks.size(); i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onClockVisibilityChanged();
}
}
}
/**
* Handle {@link #MSG_KEYGUARD_VISIBILITY_CHANGED}
*/
private void handleKeyguardVisibilityChanged(int showing) {
if (DEBUG) Log.d(TAG, "handleKeyguardVisibilityChanged(" + showing + ")");
boolean isShowing = (showing == 1);
mKeyguardIsVisible = isShowing;
for (int i = 0; i < mCallbacks.size(); i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onKeyguardVisibilityChangedRaw(isShowing);
}
}
}
/**
* Handle {@link #MSG_KEYGUARD_BOUNCER_CHANGED}
* @see #sendKeyguardBouncerChanged(boolean)
*/
private void handleKeyguardBouncerChanged(int bouncer) {
if (DEBUG) Log.d(TAG, "handleKeyguardBouncerChanged(" + bouncer + ")");
boolean isBouncer = (bouncer == 1);
mBouncer = isBouncer;
for (int i = 0; i < mCallbacks.size(); i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onKeyguardBouncerChanged(isBouncer);
}
}
}
/**
* Handle {@link #MSG_REPORT_EMERGENCY_CALL_ACTION}
*/
private void handleReportEmergencyCallAction() {
for (int i = 0; i < mCallbacks.size(); i++) {
KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get();
if (cb != null) {
cb.onEmergencyCallAction();
}
}
}
public boolean isKeyguardVisible() {
return mKeyguardIsVisible;
}
/**
* @return if the keyguard is currently in bouncer mode.
*/
public boolean isKeyguardBouncer() {
return mBouncer;
}
public boolean isSwitchingUser() {
return mSwitchingUser;
}
private static boolean isBatteryUpdateInteresting(BatteryStatus old, BatteryStatus current) {
final boolean nowPluggedIn = current.isPluggedIn();
final boolean wasPluggedIn = old.isPluggedIn();
final boolean stateChangedWhilePluggedIn =
wasPluggedIn == true && nowPluggedIn == true
&& (old.status != current.status);
// change in plug state is always interesting
if (wasPluggedIn != nowPluggedIn || stateChangedWhilePluggedIn) {
return true;
}
// change in battery level while plugged in
if (nowPluggedIn && old.level != current.level) {
return true;
}
// change where battery needs charging
if (!nowPluggedIn && current.isBatteryLow() && current.level != old.level) {
return true;
}
return false;
}
/**
* @return The default plmn (no service)
*/
private CharSequence getDefaultPlmn() {
return mContext.getResources().getText(R.string.keyguard_carrier_default);
}
/**
* Remove the given observer's callback.
*
* @param callback The callback to remove
*/
public void removeCallback(KeyguardUpdateMonitorCallback callback) {
if (DEBUG) Log.v(TAG, "*** unregister callback for " + callback);
for (int i = mCallbacks.size() - 1; i >= 0; i--) {
if (mCallbacks.get(i).get() == callback) {
mCallbacks.remove(i);
}
}
}
/**
* Register to receive notifications about general keyguard information
* (see {@link InfoCallback}.
* @param callback The callback to register
*/
public void registerCallback(KeyguardUpdateMonitorCallback callback) {
if (DEBUG) Log.v(TAG, "*** register callback for " + callback);
// Prevent adding duplicate callbacks
for (int i = 0; i < mCallbacks.size(); i++) {
if (mCallbacks.get(i).get() == callback) {
if (DEBUG) Log.e(TAG, "Object tried to add another callback",
new Exception("Called by"));
return;
}
}
mCallbacks.add(new WeakReference<KeyguardUpdateMonitorCallback>(callback));
removeCallback(null); // remove unused references
sendUpdates(callback);
}
private void sendUpdates(KeyguardUpdateMonitorCallback callback) {
// Notify listener of the current state
callback.onRefreshBatteryInfo(mBatteryStatus);
callback.onTimeChanged();
callback.onRingerModeChanged(mRingMode);
callback.onPhoneStateChanged(mPhoneState);
callback.onRefreshCarrierInfo();
callback.onClockVisibilityChanged();
for (Entry<Integer, SimData> data : mSimDatas.entrySet()) {
final SimData state = data.getValue();
callback.onSimStateChanged(state.subId, state.slotId, state.simState);
}
}
public void sendKeyguardVisibilityChanged(boolean showing) {
if (DEBUG) Log.d(TAG, "sendKeyguardVisibilityChanged(" + showing + ")");
Message message = mHandler.obtainMessage(MSG_KEYGUARD_VISIBILITY_CHANGED);
message.arg1 = showing ? 1 : 0;
message.sendToTarget();
}
/**
* @see #handleKeyguardBouncerChanged(int)
*/
public void sendKeyguardBouncerChanged(boolean showingBouncer) {
if (DEBUG) Log.d(TAG, "sendKeyguardBouncerChanged(" + showingBouncer + ")");
Message message = mHandler.obtainMessage(MSG_KEYGUARD_BOUNCER_CHANGED);
message.arg1 = showingBouncer ? 1 : 0;
message.sendToTarget();
}
public void reportClockVisible(boolean visible) {
mClockVisible = visible;
mHandler.obtainMessage(MSG_CLOCK_VISIBILITY_CHANGED).sendToTarget();
}
/**
* Report that the user successfully entered the SIM PIN or PUK/SIM PIN so we
* have the information earlier than waiting for the intent
* broadcast from the telephony code.
*
* NOTE: Because handleSimStateChange() invokes callbacks immediately without going
* through mHandler, this *must* be called from the UI thread.
*/
public void reportSimUnlocked(int subId) {
if (DEBUG_SIM_STATES) Log.v(TAG, "reportSimUnlocked(subId=" + subId + ")");
int slotId = SubscriptionManager.getSlotId(subId);
handleSimStateChange(subId, slotId, State.READY);
}
/**
* Report that the emergency call button has been pressed and the emergency dialer is
* about to be displayed.
*
* @param bypassHandler runs immediately.
*
* NOTE: Must be called from UI thread if bypassHandler == true.
*/
public void reportEmergencyCallAction(boolean bypassHandler) {
if (!bypassHandler) {
mHandler.obtainMessage(MSG_REPORT_EMERGENCY_CALL_ACTION).sendToTarget();
} else {
handleReportEmergencyCallAction();
}
}
/**
* @return Whether the device is provisioned (whether they have gone through
* the setup wizard)
*/
public boolean isDeviceProvisioned() {
return mDeviceProvisioned;
}
public int getFailedUnlockAttempts() {
return mFailedAttempts;
}
public void clearFailedUnlockAttempts() {
mFailedAttempts = 0;
mFailedBiometricUnlockAttempts = 0;
}
public void clearFingerprintRecognized() {
mUserFingerprintRecognized.clear();
}
public void reportFailedUnlockAttempt() {
mFailedAttempts++;
}
public boolean isClockVisible() {
return mClockVisible;
}
public int getPhoneState() {
return mPhoneState;
}
public void reportFailedBiometricUnlockAttempt() {
mFailedBiometricUnlockAttempts++;
}
public boolean getMaxBiometricUnlockAttemptsReached() {
return mFailedBiometricUnlockAttempts >= FAILED_BIOMETRIC_UNLOCK_ATTEMPTS_BEFORE_BACKUP;
}
public boolean isAlternateUnlockEnabled() {
return mAlternateUnlockEnabled;
}
public void setAlternateUnlockEnabled(boolean enabled) {
mAlternateUnlockEnabled = enabled;
}
public boolean isSimPinVoiceSecure() {
// TODO: only count SIMs that handle voice
return isSimPinSecure();
}
public boolean isSimPinSecure() {
// True if any SIM is pin secure
for (SubscriptionInfo info : getSubscriptionInfo(false /* forceReload */)) {
if (isSimPinSecure(getSimState(info.getSubscriptionId()))) return true;
}
return false;
}
public State getSimState(int subId) {
if (mSimDatas.containsKey(subId)) {
return mSimDatas.get(subId).simState;
} else {
return State.UNKNOWN;
}
}
/**
* @return true if and only if the state has changed for the specified {@code slotId}
*/
private boolean refreshSimState(int subId, int slotId) {
// This is awful. It exists because there are two APIs for getting the SIM status
// that don't return the complete set of values and have different types. In Keyguard we
// need IccCardConstants, but TelephonyManager would only give us
// TelephonyManager.SIM_STATE*, so we retrieve it manually.
final TelephonyManager tele = TelephonyManager.from(mContext);
int simState = tele.getSimState(slotId);
State state;
try {
state = State.intToState(simState);
} catch(IllegalArgumentException ex) {
Log.w(TAG, "Unknown sim state: " + simState);
state = State.UNKNOWN;
}
SimData data = mSimDatas.get(subId);
final boolean changed;
if (data == null) {
data = new SimData(state, slotId, subId);
mSimDatas.put(subId, data);
changed = true; // no data yet; force update
} else {
changed = data.simState != state;
data.simState = state;
}
return changed;
}
public static boolean isSimPinSecure(IccCardConstants.State state) {
final IccCardConstants.State simState = state;
return (simState == IccCardConstants.State.PIN_REQUIRED
|| simState == IccCardConstants.State.PUK_REQUIRED
|| simState == IccCardConstants.State.PERM_DISABLED);
}
public DisplayClientState getCachedDisplayClientState() {
return mDisplayClientState;
}
// TODO: use these callbacks elsewhere in place of the existing notifyScreen*()
// (KeyguardViewMediator, KeyguardHostView)
public void dispatchScreenTurnedOn() {
synchronized (this) {
mScreenOn = true;
}
mHandler.sendEmptyMessage(MSG_SCREEN_TURNED_ON);
}
public void dispatchScreenTurndOff(int why) {
synchronized(this) {
mScreenOn = false;
}
mHandler.sendMessage(mHandler.obtainMessage(MSG_SCREEN_TURNED_OFF, why, 0));
}
public boolean isScreenOn() {
return mScreenOn;
}
/**
* Find the next SubscriptionId for a SIM in the given state, favoring lower slot numbers first.
* @param state
* @return subid or {@link SubscriptionManager#INVALID_SUBSCRIPTION_ID} if none found
*/
public int getNextSubIdForState(State state) {
List<SubscriptionInfo> list = getSubscriptionInfo(false /* forceReload */);
int resultId = SubscriptionManager.INVALID_SUBSCRIPTION_ID;
int bestSlotId = Integer.MAX_VALUE; // Favor lowest slot first
for (int i = 0; i < list.size(); i++) {
final SubscriptionInfo info = list.get(i);
final int id = info.getSubscriptionId();
int slotId = SubscriptionManager.getSlotId(id);
if (state == getSimState(id) && bestSlotId > slotId ) {
resultId = id;
bestSlotId = slotId;
}
}
return resultId;
}
public SubscriptionInfo getSubscriptionInfoForSubId(int subId) {
List<SubscriptionInfo> list = getSubscriptionInfo(false /* forceReload */);
for (int i = 0; i < list.size(); i++) {
SubscriptionInfo info = list.get(i);
if (subId == info.getSubscriptionId()) return info;
}
return null; // not found
}
}
|
