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/*
* Copyright (C) 2007 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.server;
import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT;
import static org.xmlpull.v1.XmlPullParser.END_TAG;
import static org.xmlpull.v1.XmlPullParser.START_TAG;
import android.app.ActivityManager;
import android.app.ActivityManagerNative;
import android.app.AppGlobals;
import android.app.AppOpsManager;
import android.app.IActivityManager;
import android.app.INotificationManager;
import android.app.ITransientNotification;
import android.app.Notification;
import android.app.PendingIntent;
import android.app.StatusBarManager;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.ServiceConnection;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.pm.ServiceInfo;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.res.Resources;
import android.database.ContentObserver;
import android.graphics.Bitmap;
import android.media.AudioManager;
import android.media.IAudioService;
import android.media.IRingtonePlayer;
import android.net.Uri;
import android.os.Binder;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.os.Process;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.UserHandle;
import android.os.UserManager;
import android.os.Vibrator;
import android.provider.Settings;
import android.service.notification.INotificationListener;
import android.service.notification.NotificationListenerService;
import android.service.notification.StatusBarNotification;
import android.telephony.TelephonyManager;
import android.text.TextUtils;
import android.util.AtomicFile;
import android.util.EventLog;
import android.util.Log;
import android.util.Slog;
import android.util.Xml;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityManager;
import android.widget.Toast;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import java.io.File;
import java.io.FileDescriptor;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.PrintWriter;
import java.lang.reflect.Array;
import java.util.ArrayDeque;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.NoSuchElementException;
import java.util.Set;
import libcore.io.IoUtils;
/** {@hide} */
public class NotificationManagerService extends INotificationManager.Stub
{
private static final String TAG = "NotificationService";
private static final boolean DBG = false;
private static final int MAX_PACKAGE_NOTIFICATIONS = 50;
// message codes
private static final int MESSAGE_TIMEOUT = 2;
private static final int LONG_DELAY = 3500; // 3.5 seconds
private static final int SHORT_DELAY = 2000; // 2 seconds
private static final long[] DEFAULT_VIBRATE_PATTERN = {0, 250, 250, 250};
private static final int VIBRATE_PATTERN_MAXLEN = 8 * 2 + 1; // up to eight bumps
private static final int DEFAULT_STREAM_TYPE = AudioManager.STREAM_NOTIFICATION;
private static final boolean SCORE_ONGOING_HIGHER = false;
private static final int JUNK_SCORE = -1000;
private static final int NOTIFICATION_PRIORITY_MULTIPLIER = 10;
private static final int SCORE_DISPLAY_THRESHOLD = Notification.PRIORITY_MIN * NOTIFICATION_PRIORITY_MULTIPLIER;
// Notifications with scores below this will not interrupt the user, either via LED or
// sound or vibration
private static final int SCORE_INTERRUPTION_THRESHOLD =
Notification.PRIORITY_LOW * NOTIFICATION_PRIORITY_MULTIPLIER;
private static final boolean ENABLE_BLOCKED_NOTIFICATIONS = true;
private static final boolean ENABLE_BLOCKED_TOASTS = true;
private static final String ENABLED_NOTIFICATION_LISTENERS_SEPARATOR = ":";
final Context mContext;
final IActivityManager mAm;
final UserManager mUserManager;
final IBinder mForegroundToken = new Binder();
private WorkerHandler mHandler;
private StatusBarManagerService mStatusBar;
private LightsService.Light mNotificationLight;
private LightsService.Light mAttentionLight;
private int mDefaultNotificationColor;
private int mDefaultNotificationLedOn;
private int mDefaultNotificationLedOff;
private long[] mDefaultVibrationPattern;
private long[] mFallbackVibrationPattern;
private boolean mSystemReady;
private int mDisabledNotifications;
private NotificationRecord mSoundNotification;
private NotificationRecord mVibrateNotification;
private IAudioService mAudioService;
private Vibrator mVibrator;
// for enabling and disabling notification pulse behavior
private boolean mScreenOn = true;
private boolean mInCall = false;
private boolean mNotificationPulseEnabled;
// used as a mutex for access to all active notifications & listeners
private final ArrayList<NotificationRecord> mNotificationList =
new ArrayList<NotificationRecord>();
private ArrayList<ToastRecord> mToastQueue;
private ArrayList<NotificationRecord> mLights = new ArrayList<NotificationRecord>();
private NotificationRecord mLedNotification;
private final AppOpsManager mAppOps;
// contains connections to all connected listeners, including app services
// and system listeners
private ArrayList<NotificationListenerInfo> mListeners
= new ArrayList<NotificationListenerInfo>();
// things that will be put into mListeners as soon as they're ready
private ArrayList<String> mServicesBinding = new ArrayList<String>();
// lists the component names of all enabled (and therefore connected) listener
// app services for the current user only
private HashSet<ComponentName> mEnabledListenersForCurrentUser
= new HashSet<ComponentName>();
// Just the packages from mEnabledListenersForCurrentUser
private HashSet<String> mEnabledListenerPackageNames = new HashSet<String>();
// Notification control database. For now just contains disabled packages.
private AtomicFile mPolicyFile;
private HashSet<String> mBlockedPackages = new HashSet<String>();
private static final int DB_VERSION = 1;
private static final String TAG_BODY = "notification-policy";
private static final String ATTR_VERSION = "version";
private static final String TAG_BLOCKED_PKGS = "blocked-packages";
private static final String TAG_PACKAGE = "package";
private static final String ATTR_NAME = "name";
private class NotificationListenerInfo implements DeathRecipient {
INotificationListener listener;
ComponentName component;
int userid;
boolean isSystem;
ServiceConnection connection;
public NotificationListenerInfo(INotificationListener listener, ComponentName component,
int userid, boolean isSystem) {
this.listener = listener;
this.component = component;
this.userid = userid;
this.isSystem = isSystem;
this.connection = null;
}
public NotificationListenerInfo(INotificationListener listener, ComponentName component,
int userid, ServiceConnection connection) {
this.listener = listener;
this.component = component;
this.userid = userid;
this.isSystem = false;
this.connection = connection;
}
boolean enabledAndUserMatches(StatusBarNotification sbn) {
final int nid = sbn.getUserId();
if (!isEnabledForCurrentUser()) {
return false;
}
if (this.userid == UserHandle.USER_ALL) return true;
return (nid == UserHandle.USER_ALL || nid == this.userid);
}
public void notifyPostedIfUserMatch(StatusBarNotification sbn) {
if (!enabledAndUserMatches(sbn)) {
return;
}
try {
listener.onNotificationPosted(sbn);
} catch (RemoteException ex) {
Log.e(TAG, "unable to notify listener (posted): " + listener, ex);
}
}
public void notifyRemovedIfUserMatch(StatusBarNotification sbn) {
if (!enabledAndUserMatches(sbn)) return;
try {
listener.onNotificationRemoved(sbn);
} catch (RemoteException ex) {
Log.e(TAG, "unable to notify listener (removed): " + listener, ex);
}
}
@Override
public void binderDied() {
if (connection == null) {
// This is not a service; it won't be recreated. We can give up this connection.
unregisterListener(this.listener, this.userid);
}
}
/** convenience method for looking in mEnabledListenersForCurrentUser */
public boolean isEnabledForCurrentUser() {
if (this.isSystem) return true;
if (this.connection == null) return false;
return mEnabledListenersForCurrentUser.contains(this.component);
}
}
private static class Archive {
static final int BUFFER_SIZE = 250;
ArrayDeque<StatusBarNotification> mBuffer = new ArrayDeque<StatusBarNotification>(BUFFER_SIZE);
public Archive() {
}
public String toString() {
final StringBuilder sb = new StringBuilder();
final int N = mBuffer.size();
sb.append("Archive (");
sb.append(N);
sb.append(" notification");
sb.append((N==1)?")":"s)");
return sb.toString();
}
public void record(StatusBarNotification nr) {
if (mBuffer.size() == BUFFER_SIZE) {
mBuffer.removeFirst();
}
// We don't want to store the heavy bits of the notification in the archive,
// but other clients in the system process might be using the object, so we
// store a (lightened) copy.
mBuffer.addLast(nr.cloneLight());
}
public void clear() {
mBuffer.clear();
}
public Iterator<StatusBarNotification> descendingIterator() {
return mBuffer.descendingIterator();
}
public Iterator<StatusBarNotification> ascendingIterator() {
return mBuffer.iterator();
}
public Iterator<StatusBarNotification> filter(
final Iterator<StatusBarNotification> iter, final String pkg, final int userId) {
return new Iterator<StatusBarNotification>() {
StatusBarNotification mNext = findNext();
private StatusBarNotification findNext() {
while (iter.hasNext()) {
StatusBarNotification nr = iter.next();
if ((pkg == null || nr.getPackageName() == pkg)
&& (userId == UserHandle.USER_ALL || nr.getUserId() == userId)) {
return nr;
}
}
return null;
}
@Override
public boolean hasNext() {
return mNext == null;
}
@Override
public StatusBarNotification next() {
StatusBarNotification next = mNext;
if (next == null) {
throw new NoSuchElementException();
}
mNext = findNext();
return next;
}
@Override
public void remove() {
iter.remove();
}
};
}
public StatusBarNotification[] getArray(int count) {
if (count == 0) count = Archive.BUFFER_SIZE;
final StatusBarNotification[] a
= new StatusBarNotification[Math.min(count, mBuffer.size())];
Iterator<StatusBarNotification> iter = descendingIterator();
int i=0;
while (iter.hasNext() && i < count) {
a[i++] = iter.next();
}
return a;
}
public StatusBarNotification[] getArray(int count, String pkg, int userId) {
if (count == 0) count = Archive.BUFFER_SIZE;
final StatusBarNotification[] a
= new StatusBarNotification[Math.min(count, mBuffer.size())];
Iterator<StatusBarNotification> iter = filter(descendingIterator(), pkg, userId);
int i=0;
while (iter.hasNext() && i < count) {
a[i++] = iter.next();
}
return a;
}
}
Archive mArchive = new Archive();
private void loadBlockDb() {
synchronized(mBlockedPackages) {
if (mPolicyFile == null) {
File dir = new File("/data/system");
mPolicyFile = new AtomicFile(new File(dir, "notification_policy.xml"));
mBlockedPackages.clear();
FileInputStream infile = null;
try {
infile = mPolicyFile.openRead();
final XmlPullParser parser = Xml.newPullParser();
parser.setInput(infile, null);
int type;
String tag;
int version = DB_VERSION;
while ((type = parser.next()) != END_DOCUMENT) {
tag = parser.getName();
if (type == START_TAG) {
if (TAG_BODY.equals(tag)) {
version = Integer.parseInt(parser.getAttributeValue(null, ATTR_VERSION));
} else if (TAG_BLOCKED_PKGS.equals(tag)) {
while ((type = parser.next()) != END_DOCUMENT) {
tag = parser.getName();
if (TAG_PACKAGE.equals(tag)) {
mBlockedPackages.add(parser.getAttributeValue(null, ATTR_NAME));
} else if (TAG_BLOCKED_PKGS.equals(tag) && type == END_TAG) {
break;
}
}
}
}
}
} catch (FileNotFoundException e) {
// No data yet
} catch (IOException e) {
Log.wtf(TAG, "Unable to read blocked notifications database", e);
} catch (NumberFormatException e) {
Log.wtf(TAG, "Unable to parse blocked notifications database", e);
} catch (XmlPullParserException e) {
Log.wtf(TAG, "Unable to parse blocked notifications database", e);
} finally {
IoUtils.closeQuietly(infile);
}
}
}
}
/**
* Use this when you just want to know if notifications are OK for this package.
*/
public boolean areNotificationsEnabledForPackage(String pkg, int uid) {
checkCallerIsSystem();
return (mAppOps.checkOpNoThrow(AppOpsManager.OP_POST_NOTIFICATION, uid, pkg)
== AppOpsManager.MODE_ALLOWED);
}
/** Use this when you actually want to post a notification or toast.
*
* Unchecked. Not exposed via Binder, but can be called in the course of enqueue*().
*/
private boolean noteNotificationOp(String pkg, int uid) {
if (mAppOps.noteOpNoThrow(AppOpsManager.OP_POST_NOTIFICATION, uid, pkg)
!= AppOpsManager.MODE_ALLOWED) {
Slog.v(TAG, "notifications are disabled by AppOps for " + pkg);
return false;
}
return true;
}
public void setNotificationsEnabledForPackage(String pkg, int uid, boolean enabled) {
checkCallerIsSystem();
Slog.v(TAG, (enabled?"en":"dis") + "abling notifications for " + pkg);
mAppOps.setMode(AppOpsManager.OP_POST_NOTIFICATION, uid, pkg,
enabled ? AppOpsManager.MODE_ALLOWED : AppOpsManager.MODE_IGNORED);
// Now, cancel any outstanding notifications that are part of a just-disabled app
if (ENABLE_BLOCKED_NOTIFICATIONS && !enabled) {
cancelAllNotificationsInt(pkg, 0, 0, true, UserHandle.getUserId(uid));
}
}
private static String idDebugString(Context baseContext, String packageName, int id) {
Context c = null;
if (packageName != null) {
try {
c = baseContext.createPackageContext(packageName, 0);
} catch (NameNotFoundException e) {
c = baseContext;
}
} else {
c = baseContext;
}
String pkg;
String type;
String name;
Resources r = c.getResources();
try {
return r.getResourceName(id);
} catch (Resources.NotFoundException e) {
return "<name unknown>";
}
}
/**
* System-only API for getting a list of current (i.e. not cleared) notifications.
*
* Requires ACCESS_NOTIFICATIONS which is signature|system.
*/
@Override
public StatusBarNotification[] getActiveNotifications(String callingPkg) {
// enforce() will ensure the calling uid has the correct permission
mContext.enforceCallingOrSelfPermission(android.Manifest.permission.ACCESS_NOTIFICATIONS,
"NotificationManagerService.getActiveNotifications");
StatusBarNotification[] tmp = null;
int uid = Binder.getCallingUid();
// noteOp will check to make sure the callingPkg matches the uid
if (mAppOps.noteOpNoThrow(AppOpsManager.OP_ACCESS_NOTIFICATIONS, uid, callingPkg)
== AppOpsManager.MODE_ALLOWED) {
synchronized (mNotificationList) {
tmp = new StatusBarNotification[mNotificationList.size()];
final int N = mNotificationList.size();
for (int i=0; i<N; i++) {
tmp[i] = mNotificationList.get(i).sbn;
}
}
}
return tmp;
}
/**
* System-only API for getting a list of recent (cleared, no longer shown) notifications.
*
* Requires ACCESS_NOTIFICATIONS which is signature|system.
*/
@Override
public StatusBarNotification[] getHistoricalNotifications(String callingPkg, int count) {
// enforce() will ensure the calling uid has the correct permission
mContext.enforceCallingOrSelfPermission(android.Manifest.permission.ACCESS_NOTIFICATIONS,
"NotificationManagerService.getHistoricalNotifications");
StatusBarNotification[] tmp = null;
int uid = Binder.getCallingUid();
// noteOp will check to make sure the callingPkg matches the uid
if (mAppOps.noteOpNoThrow(AppOpsManager.OP_ACCESS_NOTIFICATIONS, uid, callingPkg)
== AppOpsManager.MODE_ALLOWED) {
synchronized (mArchive) {
tmp = mArchive.getArray(count);
}
}
return tmp;
}
/**
* Remove notification access for any services that no longer exist.
*/
void disableNonexistentListeners() {
int currentUser = ActivityManager.getCurrentUser();
String flatIn = Settings.Secure.getStringForUser(
mContext.getContentResolver(),
Settings.Secure.ENABLED_NOTIFICATION_LISTENERS,
currentUser);
if (!TextUtils.isEmpty(flatIn)) {
if (DBG) Slog.v(TAG, "flat before: " + flatIn);
PackageManager pm = mContext.getPackageManager();
List<ResolveInfo> installedServices = pm.queryIntentServicesAsUser(
new Intent(NotificationListenerService.SERVICE_INTERFACE),
PackageManager.GET_SERVICES | PackageManager.GET_META_DATA,
currentUser);
Set<ComponentName> installed = new HashSet<ComponentName>();
for (int i = 0, count = installedServices.size(); i < count; i++) {
ResolveInfo resolveInfo = installedServices.get(i);
ServiceInfo info = resolveInfo.serviceInfo;
if (!android.Manifest.permission.BIND_NOTIFICATION_LISTENER_SERVICE.equals(
info.permission)) {
Slog.w(TAG, "Skipping notification listener service "
+ info.packageName + "/" + info.name
+ ": it does not require the permission "
+ android.Manifest.permission.BIND_NOTIFICATION_LISTENER_SERVICE);
continue;
}
installed.add(new ComponentName(info.packageName, info.name));
}
String flatOut = "";
if (!installed.isEmpty()) {
String[] enabled = flatIn.split(ENABLED_NOTIFICATION_LISTENERS_SEPARATOR);
ArrayList<String> remaining = new ArrayList<String>(enabled.length);
for (int i = 0; i < enabled.length; i++) {
ComponentName enabledComponent = ComponentName.unflattenFromString(enabled[i]);
if (installed.contains(enabledComponent)) {
remaining.add(enabled[i]);
}
}
flatOut = TextUtils.join(ENABLED_NOTIFICATION_LISTENERS_SEPARATOR, remaining);
}
if (DBG) Slog.v(TAG, "flat after: " + flatOut);
if (!flatIn.equals(flatOut)) {
Settings.Secure.putStringForUser(mContext.getContentResolver(),
Settings.Secure.ENABLED_NOTIFICATION_LISTENERS,
flatOut, currentUser);
}
}
}
/**
* Called whenever packages change, the user switches, or ENABLED_NOTIFICATION_LISTENERS
* is altered. (For example in response to USER_SWITCHED in our broadcast receiver)
*/
void rebindListenerServices() {
final int currentUser = ActivityManager.getCurrentUser();
String flat = Settings.Secure.getStringForUser(
mContext.getContentResolver(),
Settings.Secure.ENABLED_NOTIFICATION_LISTENERS,
currentUser);
NotificationListenerInfo[] toRemove = new NotificationListenerInfo[mListeners.size()];
final ArrayList<ComponentName> toAdd;
synchronized (mNotificationList) {
// unbind and remove all existing listeners
toRemove = mListeners.toArray(toRemove);
toAdd = new ArrayList<ComponentName>();
final HashSet<ComponentName> newEnabled = new HashSet<ComponentName>();
final HashSet<String> newPackages = new HashSet<String>();
// decode the list of components
if (flat != null) {
String[] components = flat.split(ENABLED_NOTIFICATION_LISTENERS_SEPARATOR);
for (int i=0; i<components.length; i++) {
final ComponentName component
= ComponentName.unflattenFromString(components[i]);
if (component != null) {
newEnabled.add(component);
toAdd.add(component);
newPackages.add(component.getPackageName());
}
}
mEnabledListenersForCurrentUser = newEnabled;
mEnabledListenerPackageNames = newPackages;
}
}
for (NotificationListenerInfo info : toRemove) {
final ComponentName component = info.component;
final int oldUser = info.userid;
Slog.v(TAG, "disabling notification listener for user " + oldUser + ": " + component);
unregisterListenerService(component, info.userid);
}
final int N = toAdd.size();
for (int i=0; i<N; i++) {
final ComponentName component = toAdd.get(i);
Slog.v(TAG, "enabling notification listener for user " + currentUser + ": "
+ component);
registerListenerService(component, currentUser);
}
}
/**
* Register a listener binder directly with the notification manager.
*
* Only works with system callers. Apps should extend
* {@link android.service.notification.NotificationListenerService}.
*/
@Override
public void registerListener(final INotificationListener listener,
final ComponentName component, final int userid) {
checkCallerIsSystem();
synchronized (mNotificationList) {
try {
NotificationListenerInfo info
= new NotificationListenerInfo(listener, component, userid, true);
listener.asBinder().linkToDeath(info, 0);
mListeners.add(info);
} catch (RemoteException e) {
// already dead
}
}
}
/**
* Version of registerListener that takes the name of a
* {@link android.service.notification.NotificationListenerService} to bind to.
*
* This is the mechanism by which third parties may subscribe to notifications.
*/
private void registerListenerService(final ComponentName name, final int userid) {
checkCallerIsSystem();
if (DBG) Slog.v(TAG, "registerListenerService: " + name + " u=" + userid);
synchronized (mNotificationList) {
final String servicesBindingTag = name.toString() + "/" + userid;
if (mServicesBinding.contains(servicesBindingTag)) {
// stop registering this thing already! we're working on it
return;
}
mServicesBinding.add(servicesBindingTag);
final int N = mListeners.size();
for (int i=N-1; i>=0; i--) {
final NotificationListenerInfo info = mListeners.get(i);
if (name.equals(info.component)
&& info.userid == userid) {
// cut old connections
if (DBG) Slog.v(TAG, " disconnecting old listener: " + info.listener);
mListeners.remove(i);
if (info.connection != null) {
mContext.unbindService(info.connection);
}
}
}
Intent intent = new Intent(NotificationListenerService.SERVICE_INTERFACE);
intent.setComponent(name);
intent.putExtra(Intent.EXTRA_CLIENT_LABEL,
com.android.internal.R.string.notification_listener_binding_label);
intent.putExtra(Intent.EXTRA_CLIENT_INTENT, PendingIntent.getActivity(
mContext, 0, new Intent(Settings.ACTION_NOTIFICATION_LISTENER_SETTINGS), 0));
try {
if (DBG) Slog.v(TAG, "binding: " + intent);
if (!mContext.bindServiceAsUser(intent,
new ServiceConnection() {
INotificationListener mListener;
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
synchronized (mNotificationList) {
mServicesBinding.remove(servicesBindingTag);
try {
mListener = INotificationListener.Stub.asInterface(service);
NotificationListenerInfo info = new NotificationListenerInfo(
mListener, name, userid, this);
service.linkToDeath(info, 0);
mListeners.add(info);
} catch (RemoteException e) {
// already dead
}
}
}
@Override
public void onServiceDisconnected(ComponentName name) {
Slog.v(TAG, "notification listener connection lost: " + name);
}
},
Context.BIND_AUTO_CREATE,
new UserHandle(userid)))
{
mServicesBinding.remove(servicesBindingTag);
Slog.w(TAG, "Unable to bind listener service: " + intent);
return;
}
} catch (SecurityException ex) {
Slog.e(TAG, "Unable to bind listener service: " + intent, ex);
return;
}
}
}
/**
* Remove a listener binder directly
*/
@Override
public void unregisterListener(INotificationListener listener, int userid) {
// no need to check permissions; if your listener binder is in the list,
// that's proof that you had permission to add it in the first place
synchronized (mNotificationList) {
final int N = mListeners.size();
for (int i=N-1; i>=0; i--) {
final NotificationListenerInfo info = mListeners.get(i);
if (info.listener.asBinder() == listener.asBinder()
&& info.userid == userid) {
mListeners.remove(i);
if (info.connection != null) {
mContext.unbindService(info.connection);
}
}
}
}
}
/**
* Remove a listener service for the given user by ComponentName
*/
private void unregisterListenerService(ComponentName name, int userid) {
checkCallerIsSystem();
synchronized (mNotificationList) {
final int N = mListeners.size();
for (int i=N-1; i>=0; i--) {
final NotificationListenerInfo info = mListeners.get(i);
if (name.equals(info.component)
&& info.userid == userid) {
mListeners.remove(i);
if (info.connection != null) {
try {
mContext.unbindService(info.connection);
} catch (IllegalArgumentException ex) {
// something happened to the service: we think we have a connection
// but it's bogus.
Slog.e(TAG, "Listener " + name + " could not be unbound: " + ex);
}
}
}
}
}
}
/**
* asynchronously notify all listeners about a new notification
*/
private void notifyPostedLocked(NotificationRecord n) {
// make a copy in case changes are made to the underlying Notification object
final StatusBarNotification sbn = n.sbn.clone();
for (final NotificationListenerInfo info : mListeners) {
mHandler.post(new Runnable() {
@Override
public void run() {
info.notifyPostedIfUserMatch(sbn);
}});
}
}
/**
* asynchronously notify all listeners about a removed notification
*/
private void notifyRemovedLocked(NotificationRecord n) {
// make a copy in case changes are made to the underlying Notification object
// NOTE: this copy is lightweight: it doesn't include heavyweight parts of the notification
final StatusBarNotification sbn_light = n.sbn.cloneLight();
for (final NotificationListenerInfo info : mListeners) {
mHandler.post(new Runnable() {
@Override
public void run() {
info.notifyRemovedIfUserMatch(sbn_light);
}});
}
}
// -- APIs to support listeners clicking/clearing notifications --
private NotificationListenerInfo checkListenerToken(INotificationListener listener) {
final IBinder token = listener.asBinder();
final int N = mListeners.size();
for (int i=0; i<N; i++) {
final NotificationListenerInfo info = mListeners.get(i);
if (info.listener.asBinder() == token) return info;
}
throw new SecurityException("Disallowed call from unknown listener: " + listener);
}
/**
* Allow an INotificationListener to simulate a "clear all" operation.
*
* {@see com.android.server.StatusBarManagerService.NotificationCallbacks#onClearAllNotifications}
*
* @param token The binder for the listener, to check that the caller is allowed
*/
public void cancelAllNotificationsFromListener(INotificationListener token) {
NotificationListenerInfo info = checkListenerToken(token);
long identity = Binder.clearCallingIdentity();
try {
cancelAll(info.userid);
} finally {
Binder.restoreCallingIdentity(identity);
}
}
/**
* Allow an INotificationListener to simulate clearing (dismissing) a single notification.
*
* {@see com.android.server.StatusBarManagerService.NotificationCallbacks#onNotificationClear}
*
* @param token The binder for the listener, to check that the caller is allowed
*/
public void cancelNotificationFromListener(INotificationListener token, String pkg, String tag, int id) {
NotificationListenerInfo info = checkListenerToken(token);
long identity = Binder.clearCallingIdentity();
try {
cancelNotification(pkg, tag, id, 0,
Notification.FLAG_ONGOING_EVENT | Notification.FLAG_FOREGROUND_SERVICE,
true,
info.userid);
} finally {
Binder.restoreCallingIdentity(identity);
}
}
/**
* Allow an INotificationListener to request the list of outstanding notifications seen by
* the current user. Useful when starting up, after which point the listener callbacks should
* be used.
*
* @param token The binder for the listener, to check that the caller is allowed
*/
public StatusBarNotification[] getActiveNotificationsFromListener(INotificationListener token) {
NotificationListenerInfo info = checkListenerToken(token);
StatusBarNotification[] result = new StatusBarNotification[0];
ArrayList<StatusBarNotification> list = new ArrayList<StatusBarNotification>();
synchronized (mNotificationList) {
final int N = mNotificationList.size();
for (int i=0; i<N; i++) {
StatusBarNotification sbn = mNotificationList.get(i).sbn;
if (info.enabledAndUserMatches(sbn)) {
list.add(sbn);
}
}
}
return list.toArray(result);
}
// -- end of listener APIs --
public static final class NotificationRecord
{
final StatusBarNotification sbn;
IBinder statusBarKey;
NotificationRecord(StatusBarNotification sbn)
{
this.sbn = sbn;
}
public Notification getNotification() { return sbn.getNotification(); }
public int getFlags() { return sbn.getNotification().flags; }
public int getUserId() { return sbn.getUserId(); }
void dump(PrintWriter pw, String prefix, Context baseContext) {
final Notification notification = sbn.getNotification();
pw.println(prefix + this);
pw.println(prefix + " uid=" + sbn.getUid() + " userId=" + sbn.getUserId());
pw.println(prefix + " icon=0x" + Integer.toHexString(notification.icon)
+ " / " + idDebugString(baseContext, sbn.getPackageName(), notification.icon));
pw.println(prefix + " pri=" + notification.priority + " score=" + sbn.getScore());
pw.println(prefix + " contentIntent=" + notification.contentIntent);
pw.println(prefix + " deleteIntent=" + notification.deleteIntent);
pw.println(prefix + " tickerText=" + notification.tickerText);
pw.println(prefix + " contentView=" + notification.contentView);
pw.println(prefix + String.format(" defaults=0x%08x flags=0x%08x",
notification.defaults, notification.flags));
pw.println(prefix + " sound=" + notification.sound);
pw.println(prefix + " vibrate=" + Arrays.toString(notification.vibrate));
pw.println(prefix + String.format(" led=0x%08x onMs=%d offMs=%d",
notification.ledARGB, notification.ledOnMS, notification.ledOffMS));
if (notification.actions != null && notification.actions.length > 0) {
pw.println(prefix + " actions={");
final int N = notification.actions.length;
for (int i=0; i<N; i++) {
final Notification.Action action = notification.actions[i];
pw.println(String.format("%s [%d] \"%s\" -> %s",
prefix,
i,
action.title,
action.actionIntent.toString()
));
}
pw.println(prefix + " }");
}
if (notification.extras != null && notification.extras.size() > 0) {
pw.println(prefix + " extras={");
for (String key : notification.extras.keySet()) {
pw.print(prefix + " " + key + "=");
Object val = notification.extras.get(key);
if (val == null) {
pw.println("null");
} else {
pw.print(val.toString());
if (val instanceof Bitmap) {
pw.print(String.format(" (%dx%d)",
((Bitmap) val).getWidth(),
((Bitmap) val).getHeight()));
} else if (val.getClass().isArray()) {
pw.println(" {");
final int N = Array.getLength(val);
for (int i=0; i<N; i++) {
if (i > 0) pw.println(",");
pw.print(prefix + " " + Array.get(val, i));
}
pw.print("\n" + prefix + " }");
}
pw.println();
}
}
pw.println(prefix + " }");
}
}
@Override
public final String toString() {
return String.format(
"NotificationRecord(0x%08x: pkg=%s user=%s id=%d tag=%s score=%d: %s)",
System.identityHashCode(this),
this.sbn.getPackageName(), this.sbn.getUser(), this.sbn.getId(), this.sbn.getTag(),
this.sbn.getScore(), this.sbn.getNotification());
}
}
private static final class ToastRecord
{
final int pid;
final String pkg;
final ITransientNotification callback;
int duration;
ToastRecord(int pid, String pkg, ITransientNotification callback, int duration)
{
this.pid = pid;
this.pkg = pkg;
this.callback = callback;
this.duration = duration;
}
void update(int duration) {
this.duration = duration;
}
void dump(PrintWriter pw, String prefix) {
pw.println(prefix + this);
}
@Override
public final String toString()
{
return "ToastRecord{"
+ Integer.toHexString(System.identityHashCode(this))
+ " pkg=" + pkg
+ " callback=" + callback
+ " duration=" + duration;
}
}
private StatusBarManagerService.NotificationCallbacks mNotificationCallbacks
= new StatusBarManagerService.NotificationCallbacks() {
public void onSetDisabled(int status) {
synchronized (mNotificationList) {
mDisabledNotifications = status;
if ((mDisabledNotifications & StatusBarManager.DISABLE_NOTIFICATION_ALERTS) != 0) {
// cancel whatever's going on
long identity = Binder.clearCallingIdentity();
try {
final IRingtonePlayer player = mAudioService.getRingtonePlayer();
if (player != null) {
player.stopAsync();
}
} catch (RemoteException e) {
} finally {
Binder.restoreCallingIdentity(identity);
}
identity = Binder.clearCallingIdentity();
try {
mVibrator.cancel();
} finally {
Binder.restoreCallingIdentity(identity);
}
}
}
}
public void onClearAll() {
// XXX to be totally correct, the caller should tell us which user
// this is for.
cancelAll(ActivityManager.getCurrentUser());
}
public void onNotificationClick(String pkg, String tag, int id) {
// XXX to be totally correct, the caller should tell us which user
// this is for.
cancelNotification(pkg, tag, id, Notification.FLAG_AUTO_CANCEL,
Notification.FLAG_FOREGROUND_SERVICE, false,
ActivityManager.getCurrentUser());
}
public void onNotificationClear(String pkg, String tag, int id) {
// XXX to be totally correct, the caller should tell us which user
// this is for.
cancelNotification(pkg, tag, id, 0,
Notification.FLAG_ONGOING_EVENT | Notification.FLAG_FOREGROUND_SERVICE,
true, ActivityManager.getCurrentUser());
}
public void onPanelRevealed() {
synchronized (mNotificationList) {
// sound
mSoundNotification = null;
long identity = Binder.clearCallingIdentity();
try {
final IRingtonePlayer player = mAudioService.getRingtonePlayer();
if (player != null) {
player.stopAsync();
}
} catch (RemoteException e) {
} finally {
Binder.restoreCallingIdentity(identity);
}
// vibrate
mVibrateNotification = null;
identity = Binder.clearCallingIdentity();
try {
mVibrator.cancel();
} finally {
Binder.restoreCallingIdentity(identity);
}
// light
mLights.clear();
mLedNotification = null;
updateLightsLocked();
}
}
public void onNotificationError(String pkg, String tag, int id,
int uid, int initialPid, String message) {
Slog.d(TAG, "onNotification error pkg=" + pkg + " tag=" + tag + " id=" + id
+ "; will crashApplication(uid=" + uid + ", pid=" + initialPid + ")");
// XXX to be totally correct, the caller should tell us which user
// this is for.
cancelNotification(pkg, tag, id, 0, 0, false, UserHandle.getUserId(uid));
long ident = Binder.clearCallingIdentity();
try {
ActivityManagerNative.getDefault().crashApplication(uid, initialPid, pkg,
"Bad notification posted from package " + pkg
+ ": " + message);
} catch (RemoteException e) {
}
Binder.restoreCallingIdentity(ident);
}
};
private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
boolean queryRestart = false;
boolean queryRemove = false;
boolean packageChanged = false;
boolean cancelNotifications = true;
if (action.equals(Intent.ACTION_PACKAGE_ADDED)
|| (queryRemove=action.equals(Intent.ACTION_PACKAGE_REMOVED))
|| action.equals(Intent.ACTION_PACKAGE_RESTARTED)
|| (packageChanged=action.equals(Intent.ACTION_PACKAGE_CHANGED))
|| (queryRestart=action.equals(Intent.ACTION_QUERY_PACKAGE_RESTART))
|| action.equals(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE)) {
String pkgList[] = null;
boolean queryReplace = queryRemove &&
intent.getBooleanExtra(Intent.EXTRA_REPLACING, false);
if (DBG) Slog.i(TAG, "queryReplace=" + queryReplace);
if (action.equals(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE)) {
pkgList = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST);
} else if (queryRestart) {
pkgList = intent.getStringArrayExtra(Intent.EXTRA_PACKAGES);
} else {
Uri uri = intent.getData();
if (uri == null) {
return;
}
String pkgName = uri.getSchemeSpecificPart();
if (pkgName == null) {
return;
}
if (packageChanged) {
// We cancel notifications for packages which have just been disabled
final int enabled = mContext.getPackageManager()
.getApplicationEnabledSetting(pkgName);
if (enabled == PackageManager.COMPONENT_ENABLED_STATE_ENABLED
|| enabled == PackageManager.COMPONENT_ENABLED_STATE_DEFAULT) {
cancelNotifications = false;
}
}
pkgList = new String[]{pkgName};
}
boolean anyListenersInvolved = false;
if (pkgList != null && (pkgList.length > 0)) {
for (String pkgName : pkgList) {
if (cancelNotifications) {
cancelAllNotificationsInt(pkgName, 0, 0, !queryRestart,
UserHandle.USER_ALL);
}
if (mEnabledListenerPackageNames.contains(pkgName)) {
anyListenersInvolved = true;
}
}
}
if (anyListenersInvolved) {
// if we're not replacing a package, clean up orphaned bits
if (!queryReplace) {
disableNonexistentListeners();
}
// make sure we're still bound to any of our
// listeners who may have just upgraded
rebindListenerServices();
}
} else if (action.equals(Intent.ACTION_SCREEN_ON)) {
// Keep track of screen on/off state, but do not turn off the notification light
// until user passes through the lock screen or views the notification.
mScreenOn = true;
} else if (action.equals(Intent.ACTION_SCREEN_OFF)) {
mScreenOn = false;
} else if (action.equals(TelephonyManager.ACTION_PHONE_STATE_CHANGED)) {
mInCall = (intent.getStringExtra(TelephonyManager.EXTRA_STATE).equals(
TelephonyManager.EXTRA_STATE_OFFHOOK));
updateNotificationPulse();
} else if (action.equals(Intent.ACTION_USER_STOPPED)) {
int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, -1);
if (userHandle >= 0) {
cancelAllNotificationsInt(null, 0, 0, true, userHandle);
}
} else if (action.equals(Intent.ACTION_USER_PRESENT)) {
// turn off LED when user passes through lock screen
mNotificationLight.turnOff();
} else if (action.equals(Intent.ACTION_USER_SWITCHED)) {
// reload per-user settings
mSettingsObserver.update(null);
}
}
};
class SettingsObserver extends ContentObserver {
private final Uri NOTIFICATION_LIGHT_PULSE_URI
= Settings.System.getUriFor(Settings.System.NOTIFICATION_LIGHT_PULSE);
private final Uri ENABLED_NOTIFICATION_LISTENERS_URI
= Settings.Secure.getUriFor(Settings.Secure.ENABLED_NOTIFICATION_LISTENERS);
SettingsObserver(Handler handler) {
super(handler);
}
void observe() {
ContentResolver resolver = mContext.getContentResolver();
resolver.registerContentObserver(NOTIFICATION_LIGHT_PULSE_URI,
false, this, UserHandle.USER_ALL);
resolver.registerContentObserver(ENABLED_NOTIFICATION_LISTENERS_URI,
false, this, UserHandle.USER_ALL);
update(null);
}
@Override public void onChange(boolean selfChange, Uri uri) {
update(uri);
}
public void update(Uri uri) {
ContentResolver resolver = mContext.getContentResolver();
if (uri == null || NOTIFICATION_LIGHT_PULSE_URI.equals(uri)) {
boolean pulseEnabled = Settings.System.getInt(resolver,
Settings.System.NOTIFICATION_LIGHT_PULSE, 0) != 0;
if (mNotificationPulseEnabled != pulseEnabled) {
mNotificationPulseEnabled = pulseEnabled;
updateNotificationPulse();
}
}
if (uri == null || ENABLED_NOTIFICATION_LISTENERS_URI.equals(uri)) {
rebindListenerServices();
}
}
}
private SettingsObserver mSettingsObserver;
static long[] getLongArray(Resources r, int resid, int maxlen, long[] def) {
int[] ar = r.getIntArray(resid);
if (ar == null) {
return def;
}
final int len = ar.length > maxlen ? maxlen : ar.length;
long[] out = new long[len];
for (int i=0; i<len; i++) {
out[i] = ar[i];
}
return out;
}
NotificationManagerService(Context context, StatusBarManagerService statusBar,
LightsService lights)
{
super();
mContext = context;
mVibrator = (Vibrator)context.getSystemService(Context.VIBRATOR_SERVICE);
mAm = ActivityManagerNative.getDefault();
mUserManager = (UserManager)context.getSystemService(Context.USER_SERVICE);
mToastQueue = new ArrayList<ToastRecord>();
mHandler = new WorkerHandler();
mAppOps = (AppOpsManager)context.getSystemService(Context.APP_OPS_SERVICE);
importOldBlockDb();
mStatusBar = statusBar;
statusBar.setNotificationCallbacks(mNotificationCallbacks);
mNotificationLight = lights.getLight(LightsService.LIGHT_ID_NOTIFICATIONS);
mAttentionLight = lights.getLight(LightsService.LIGHT_ID_ATTENTION);
Resources resources = mContext.getResources();
mDefaultNotificationColor = resources.getColor(
com.android.internal.R.color.config_defaultNotificationColor);
mDefaultNotificationLedOn = resources.getInteger(
com.android.internal.R.integer.config_defaultNotificationLedOn);
mDefaultNotificationLedOff = resources.getInteger(
com.android.internal.R.integer.config_defaultNotificationLedOff);
mDefaultVibrationPattern = getLongArray(resources,
com.android.internal.R.array.config_defaultNotificationVibePattern,
VIBRATE_PATTERN_MAXLEN,
DEFAULT_VIBRATE_PATTERN);
mFallbackVibrationPattern = getLongArray(resources,
com.android.internal.R.array.config_notificationFallbackVibePattern,
VIBRATE_PATTERN_MAXLEN,
DEFAULT_VIBRATE_PATTERN);
// Don't start allowing notifications until the setup wizard has run once.
// After that, including subsequent boots, init with notifications turned on.
// This works on the first boot because the setup wizard will toggle this
// flag at least once and we'll go back to 0 after that.
if (0 == Settings.Global.getInt(mContext.getContentResolver(),
Settings.Global.DEVICE_PROVISIONED, 0)) {
mDisabledNotifications = StatusBarManager.DISABLE_NOTIFICATION_ALERTS;
}
// register for various Intents
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_SCREEN_ON);
filter.addAction(Intent.ACTION_SCREEN_OFF);
filter.addAction(TelephonyManager.ACTION_PHONE_STATE_CHANGED);
filter.addAction(Intent.ACTION_USER_PRESENT);
filter.addAction(Intent.ACTION_USER_STOPPED);
filter.addAction(Intent.ACTION_USER_SWITCHED);
mContext.registerReceiver(mIntentReceiver, filter);
IntentFilter pkgFilter = new IntentFilter();
pkgFilter.addAction(Intent.ACTION_PACKAGE_ADDED);
pkgFilter.addAction(Intent.ACTION_PACKAGE_REMOVED);
pkgFilter.addAction(Intent.ACTION_PACKAGE_CHANGED);
pkgFilter.addAction(Intent.ACTION_PACKAGE_RESTARTED);
pkgFilter.addAction(Intent.ACTION_QUERY_PACKAGE_RESTART);
pkgFilter.addDataScheme("package");
mContext.registerReceiver(mIntentReceiver, pkgFilter);
IntentFilter sdFilter = new IntentFilter(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE);
mContext.registerReceiver(mIntentReceiver, sdFilter);
mSettingsObserver = new SettingsObserver(mHandler);
mSettingsObserver.observe();
}
/**
* Read the old XML-based app block database and import those blockages into the AppOps system.
*/
private void importOldBlockDb() {
loadBlockDb();
PackageManager pm = mContext.getPackageManager();
for (String pkg : mBlockedPackages) {
PackageInfo info = null;
try {
info = pm.getPackageInfo(pkg, 0);
setNotificationsEnabledForPackage(pkg, info.applicationInfo.uid, false);
} catch (NameNotFoundException e) {
// forget you
}
}
mBlockedPackages.clear();
if (mPolicyFile != null) {
mPolicyFile.delete();
}
}
void systemReady() {
mAudioService = IAudioService.Stub.asInterface(
ServiceManager.getService(Context.AUDIO_SERVICE));
// no beeping until we're basically done booting
mSystemReady = true;
// make sure our listener services are properly bound
rebindListenerServices();
}
// Toasts
// ============================================================================
public void enqueueToast(String pkg, ITransientNotification callback, int duration)
{
if (DBG) Slog.i(TAG, "enqueueToast pkg=" + pkg + " callback=" + callback + " duration=" + duration);
if (pkg == null || callback == null) {
Slog.e(TAG, "Not doing toast. pkg=" + pkg + " callback=" + callback);
return ;
}
final boolean isSystemToast = isCallerSystem() || ("android".equals(pkg));
if (ENABLE_BLOCKED_TOASTS && !noteNotificationOp(pkg, Binder.getCallingUid())) {
if (!isSystemToast) {
Slog.e(TAG, "Suppressing toast from package " + pkg + " by user request.");
return;
}
}
synchronized (mToastQueue) {
int callingPid = Binder.getCallingPid();
long callingId = Binder.clearCallingIdentity();
try {
ToastRecord record;
int index = indexOfToastLocked(pkg, callback);
// If it's already in the queue, we update it in place, we don't
// move it to the end of the queue.
if (index >= 0) {
record = mToastQueue.get(index);
record.update(duration);
} else {
// Limit the number of toasts that any given package except the android
// package can enqueue. Prevents DOS attacks and deals with leaks.
if (!isSystemToast) {
int count = 0;
final int N = mToastQueue.size();
for (int i=0; i<N; i++) {
final ToastRecord r = mToastQueue.get(i);
if (r.pkg.equals(pkg)) {
count++;
if (count >= MAX_PACKAGE_NOTIFICATIONS) {
Slog.e(TAG, "Package has already posted " + count
+ " toasts. Not showing more. Package=" + pkg);
return;
}
}
}
}
record = new ToastRecord(callingPid, pkg, callback, duration);
mToastQueue.add(record);
index = mToastQueue.size() - 1;
keepProcessAliveLocked(callingPid);
}
// If it's at index 0, it's the current toast. It doesn't matter if it's
// new or just been updated. Call back and tell it to show itself.
// If the callback fails, this will remove it from the list, so don't
// assume that it's valid after this.
if (index == 0) {
showNextToastLocked();
}
} finally {
Binder.restoreCallingIdentity(callingId);
}
}
}
public void cancelToast(String pkg, ITransientNotification callback) {
Slog.i(TAG, "cancelToast pkg=" + pkg + " callback=" + callback);
if (pkg == null || callback == null) {
Slog.e(TAG, "Not cancelling notification. pkg=" + pkg + " callback=" + callback);
return ;
}
synchronized (mToastQueue) {
long callingId = Binder.clearCallingIdentity();
try {
int index = indexOfToastLocked(pkg, callback);
if (index >= 0) {
cancelToastLocked(index);
} else {
Slog.w(TAG, "Toast already cancelled. pkg=" + pkg + " callback=" + callback);
}
} finally {
Binder.restoreCallingIdentity(callingId);
}
}
}
private void showNextToastLocked() {
ToastRecord record = mToastQueue.get(0);
while (record != null) {
if (DBG) Slog.d(TAG, "Show pkg=" + record.pkg + " callback=" + record.callback);
try {
record.callback.show();
scheduleTimeoutLocked(record, false);
return;
} catch (RemoteException e) {
Slog.w(TAG, "Object died trying to show notification " + record.callback
+ " in package " + record.pkg);
// remove it from the list and let the process die
int index = mToastQueue.indexOf(record);
if (index >= 0) {
mToastQueue.remove(index);
}
keepProcessAliveLocked(record.pid);
if (mToastQueue.size() > 0) {
record = mToastQueue.get(0);
} else {
record = null;
}
}
}
}
private void cancelToastLocked(int index) {
ToastRecord record = mToastQueue.get(index);
try {
record.callback.hide();
} catch (RemoteException e) {
Slog.w(TAG, "Object died trying to hide notification " + record.callback
+ " in package " + record.pkg);
// don't worry about this, we're about to remove it from
// the list anyway
}
mToastQueue.remove(index);
keepProcessAliveLocked(record.pid);
if (mToastQueue.size() > 0) {
// Show the next one. If the callback fails, this will remove
// it from the list, so don't assume that the list hasn't changed
// after this point.
showNextToastLocked();
}
}
private void scheduleTimeoutLocked(ToastRecord r, boolean immediate)
{
Message m = Message.obtain(mHandler, MESSAGE_TIMEOUT, r);
long delay = immediate ? 0 : (r.duration == Toast.LENGTH_LONG ? LONG_DELAY : SHORT_DELAY);
mHandler.removeCallbacksAndMessages(r);
mHandler.sendMessageDelayed(m, delay);
}
private void handleTimeout(ToastRecord record)
{
if (DBG) Slog.d(TAG, "Timeout pkg=" + record.pkg + " callback=" + record.callback);
synchronized (mToastQueue) {
int index = indexOfToastLocked(record.pkg, record.callback);
if (index >= 0) {
cancelToastLocked(index);
}
}
}
// lock on mToastQueue
private int indexOfToastLocked(String pkg, ITransientNotification callback)
{
IBinder cbak = callback.asBinder();
ArrayList<ToastRecord> list = mToastQueue;
int len = list.size();
for (int i=0; i<len; i++) {
ToastRecord r = list.get(i);
if (r.pkg.equals(pkg) && r.callback.asBinder() == cbak) {
return i;
}
}
return -1;
}
// lock on mToastQueue
private void keepProcessAliveLocked(int pid)
{
int toastCount = 0; // toasts from this pid
ArrayList<ToastRecord> list = mToastQueue;
int N = list.size();
for (int i=0; i<N; i++) {
ToastRecord r = list.get(i);
if (r.pid == pid) {
toastCount++;
}
}
try {
mAm.setProcessForeground(mForegroundToken, pid, toastCount > 0);
} catch (RemoteException e) {
// Shouldn't happen.
}
}
private final class WorkerHandler extends Handler
{
@Override
public void handleMessage(Message msg)
{
switch (msg.what)
{
case MESSAGE_TIMEOUT:
handleTimeout((ToastRecord)msg.obj);
break;
}
}
}
// Notifications
// ============================================================================
public void enqueueNotificationWithTag(String pkg, String basePkg, String tag, int id,
Notification notification, int[] idOut, int userId)
{
enqueueNotificationInternal(pkg, basePkg, Binder.getCallingUid(), Binder.getCallingPid(),
tag, id, notification, idOut, userId);
}
private final static int clamp(int x, int low, int high) {
return (x < low) ? low : ((x > high) ? high : x);
}
// Not exposed via Binder; for system use only (otherwise malicious apps could spoof the
// uid/pid of another application)
public void enqueueNotificationInternal(String pkg, String basePkg, int callingUid,
int callingPid, String tag, int id, Notification notification, int[] idOut, int userId)
{
if (DBG) {
Slog.v(TAG, "enqueueNotificationInternal: pkg=" + pkg + " id=" + id + " notification=" + notification);
}
checkCallerIsSystemOrSameApp(pkg);
final boolean isSystemNotification = isUidSystem(callingUid) || ("android".equals(pkg));
userId = ActivityManager.handleIncomingUser(callingPid,
callingUid, userId, true, false, "enqueueNotification", pkg);
final UserHandle user = new UserHandle(userId);
// Limit the number of notifications that any given package except the android
// package can enqueue. Prevents DOS attacks and deals with leaks.
if (!isSystemNotification) {
synchronized (mNotificationList) {
int count = 0;
final int N = mNotificationList.size();
for (int i=0; i<N; i++) {
final NotificationRecord r = mNotificationList.get(i);
if (r.sbn.getPackageName().equals(pkg) && r.sbn.getUserId() == userId) {
count++;
if (count >= MAX_PACKAGE_NOTIFICATIONS) {
Slog.e(TAG, "Package has already posted " + count
+ " notifications. Not showing more. package=" + pkg);
return;
}
}
}
}
}
// This conditional is a dirty hack to limit the logging done on
// behalf of the download manager without affecting other apps.
if (!pkg.equals("com.android.providers.downloads")
|| Log.isLoggable("DownloadManager", Log.VERBOSE)) {
EventLog.writeEvent(EventLogTags.NOTIFICATION_ENQUEUE, pkg, id, tag, userId,
notification.toString());
}
if (pkg == null || notification == null) {
throw new IllegalArgumentException("null not allowed: pkg=" + pkg
+ " id=" + id + " notification=" + notification);
}
if (notification.icon != 0) {
if (notification.contentView == null) {
throw new IllegalArgumentException("contentView required: pkg=" + pkg
+ " id=" + id + " notification=" + notification);
}
}
// === Scoring ===
// 0. Sanitize inputs
notification.priority = clamp(notification.priority, Notification.PRIORITY_MIN, Notification.PRIORITY_MAX);
// Migrate notification flags to scores
if (0 != (notification.flags & Notification.FLAG_HIGH_PRIORITY)) {
if (notification.priority < Notification.PRIORITY_MAX) notification.priority = Notification.PRIORITY_MAX;
} else if (SCORE_ONGOING_HIGHER && 0 != (notification.flags & Notification.FLAG_ONGOING_EVENT)) {
if (notification.priority < Notification.PRIORITY_HIGH) notification.priority = Notification.PRIORITY_HIGH;
}
// 1. initial score: buckets of 10, around the app
int score = notification.priority * NOTIFICATION_PRIORITY_MULTIPLIER; //[-20..20]
// 2. Consult external heuristics (TBD)
// 3. Apply local rules
// blocked apps
if (ENABLE_BLOCKED_NOTIFICATIONS && !noteNotificationOp(pkg, callingUid)) {
if (!isSystemNotification) {
score = JUNK_SCORE;
Slog.e(TAG, "Suppressing notification from package " + pkg + " by user request.");
}
}
if (DBG) {
Slog.v(TAG, "Assigned score=" + score + " to " + notification);
}
if (score < SCORE_DISPLAY_THRESHOLD) {
// Notification will be blocked because the score is too low.
return;
}
// Should this notification make noise, vibe, or use the LED?
final boolean canInterrupt = (score >= SCORE_INTERRUPTION_THRESHOLD);
synchronized (mNotificationList) {
final StatusBarNotification n = new StatusBarNotification(
pkg, id, tag, callingUid, callingPid, score, notification, user);
NotificationRecord r = new NotificationRecord(n);
NotificationRecord old = null;
int index = indexOfNotificationLocked(pkg, tag, id, userId);
if (index < 0) {
mNotificationList.add(r);
} else {
old = mNotificationList.remove(index);
mNotificationList.add(index, r);
// Make sure we don't lose the foreground service state.
if (old != null) {
notification.flags |=
old.getNotification().flags&Notification.FLAG_FOREGROUND_SERVICE;
}
}
// Ensure if this is a foreground service that the proper additional
// flags are set.
if ((notification.flags&Notification.FLAG_FOREGROUND_SERVICE) != 0) {
notification.flags |= Notification.FLAG_ONGOING_EVENT
| Notification.FLAG_NO_CLEAR;
}
final int currentUser;
final long token = Binder.clearCallingIdentity();
try {
currentUser = ActivityManager.getCurrentUser();
} finally {
Binder.restoreCallingIdentity(token);
}
if (notification.icon != 0) {
if (old != null && old.statusBarKey != null) {
r.statusBarKey = old.statusBarKey;
long identity = Binder.clearCallingIdentity();
try {
mStatusBar.updateNotification(r.statusBarKey, n);
}
finally {
Binder.restoreCallingIdentity(identity);
}
} else {
long identity = Binder.clearCallingIdentity();
try {
r.statusBarKey = mStatusBar.addNotification(n);
if ((n.getNotification().flags & Notification.FLAG_SHOW_LIGHTS) != 0
&& canInterrupt) {
mAttentionLight.pulse();
}
}
finally {
Binder.restoreCallingIdentity(identity);
}
}
// Send accessibility events only for the current user.
if (currentUser == userId) {
sendAccessibilityEvent(notification, pkg);
}
notifyPostedLocked(r);
} else {
Slog.e(TAG, "Not posting notification with icon==0: " + notification);
if (old != null && old.statusBarKey != null) {
long identity = Binder.clearCallingIdentity();
try {
mStatusBar.removeNotification(old.statusBarKey);
}
finally {
Binder.restoreCallingIdentity(identity);
}
notifyRemovedLocked(r);
}
// ATTENTION: in a future release we will bail out here
// so that we do not play sounds, show lights, etc. for invalid notifications
Slog.e(TAG, "WARNING: In a future release this will crash the app: " + n.getPackageName());
}
// If we're not supposed to beep, vibrate, etc. then don't.
if (((mDisabledNotifications & StatusBarManager.DISABLE_NOTIFICATION_ALERTS) == 0)
&& (!(old != null
&& (notification.flags & Notification.FLAG_ONLY_ALERT_ONCE) != 0 ))
&& (r.getUserId() == UserHandle.USER_ALL ||
(r.getUserId() == userId && r.getUserId() == currentUser))
&& canInterrupt
&& mSystemReady) {
final AudioManager audioManager = (AudioManager) mContext
.getSystemService(Context.AUDIO_SERVICE);
// sound
// should we use the default notification sound? (indicated either by DEFAULT_SOUND
// or because notification.sound is pointing at Settings.System.NOTIFICATION_SOUND)
final boolean useDefaultSound =
(notification.defaults & Notification.DEFAULT_SOUND) != 0
|| Settings.System.DEFAULT_NOTIFICATION_URI.equals(notification.sound);
Uri soundUri = null;
boolean hasValidSound = false;
if (useDefaultSound) {
soundUri = Settings.System.DEFAULT_NOTIFICATION_URI;
// check to see if the default notification sound is silent
ContentResolver resolver = mContext.getContentResolver();
hasValidSound = Settings.System.getString(resolver,
Settings.System.NOTIFICATION_SOUND) != null;
} else if (notification.sound != null) {
soundUri = notification.sound;
hasValidSound = (soundUri != null);
}
if (hasValidSound) {
boolean looping = (notification.flags & Notification.FLAG_INSISTENT) != 0;
int audioStreamType;
if (notification.audioStreamType >= 0) {
audioStreamType = notification.audioStreamType;
} else {
audioStreamType = DEFAULT_STREAM_TYPE;
}
mSoundNotification = r;
// do not play notifications if stream volume is 0
// (typically because ringer mode is silent) or if speech recognition is active.
if ((audioManager.getStreamVolume(audioStreamType) != 0)
&& !audioManager.isSpeechRecognitionActive()) {
final long identity = Binder.clearCallingIdentity();
try {
final IRingtonePlayer player = mAudioService.getRingtonePlayer();
if (player != null) {
player.playAsync(soundUri, user, looping, audioStreamType);
}
} catch (RemoteException e) {
} finally {
Binder.restoreCallingIdentity(identity);
}
}
}
// vibrate
// Does the notification want to specify its own vibration?
final boolean hasCustomVibrate = notification.vibrate != null;
// new in 4.2: if there was supposed to be a sound and we're in vibrate mode,
// and no other vibration is specified, we fall back to vibration
final boolean convertSoundToVibration =
!hasCustomVibrate
&& hasValidSound
&& (audioManager.getRingerMode() == AudioManager.RINGER_MODE_VIBRATE);
// The DEFAULT_VIBRATE flag trumps any custom vibration AND the fallback.
final boolean useDefaultVibrate =
(notification.defaults & Notification.DEFAULT_VIBRATE) != 0;
if ((useDefaultVibrate || convertSoundToVibration || hasCustomVibrate)
&& !(audioManager.getRingerMode() == AudioManager.RINGER_MODE_SILENT)) {
mVibrateNotification = r;
if (useDefaultVibrate || convertSoundToVibration) {
// Escalate privileges so we can use the vibrator even if the notifying app
// does not have the VIBRATE permission.
long identity = Binder.clearCallingIdentity();
try {
mVibrator.vibrate(r.sbn.getUid(), r.sbn.getBasePkg(),
useDefaultVibrate ? mDefaultVibrationPattern
: mFallbackVibrationPattern,
((notification.flags & Notification.FLAG_INSISTENT) != 0) ? 0: -1);
} finally {
Binder.restoreCallingIdentity(identity);
}
} else if (notification.vibrate.length > 1) {
// If you want your own vibration pattern, you need the VIBRATE permission
mVibrator.vibrate(r.sbn.getUid(), r.sbn.getBasePkg(), notification.vibrate,
((notification.flags & Notification.FLAG_INSISTENT) != 0) ? 0: -1);
}
}
}
// light
// the most recent thing gets the light
mLights.remove(old);
if (mLedNotification == old) {
mLedNotification = null;
}
//Slog.i(TAG, "notification.lights="
// + ((old.notification.lights.flags & Notification.FLAG_SHOW_LIGHTS) != 0));
if ((notification.flags & Notification.FLAG_SHOW_LIGHTS) != 0
&& canInterrupt) {
mLights.add(r);
updateLightsLocked();
} else {
if (old != null
&& ((old.getFlags() & Notification.FLAG_SHOW_LIGHTS) != 0)) {
updateLightsLocked();
}
}
}
idOut[0] = id;
}
private void sendAccessibilityEvent(Notification notification, CharSequence packageName) {
AccessibilityManager manager = AccessibilityManager.getInstance(mContext);
if (!manager.isEnabled()) {
return;
}
AccessibilityEvent event =
AccessibilityEvent.obtain(AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED);
event.setPackageName(packageName);
event.setClassName(Notification.class.getName());
event.setParcelableData(notification);
CharSequence tickerText = notification.tickerText;
if (!TextUtils.isEmpty(tickerText)) {
event.getText().add(tickerText);
}
manager.sendAccessibilityEvent(event);
}
private void cancelNotificationLocked(NotificationRecord r, boolean sendDelete) {
// tell the app
if (sendDelete) {
if (r.getNotification().deleteIntent != null) {
try {
r.getNotification().deleteIntent.send();
} catch (PendingIntent.CanceledException ex) {
// do nothing - there's no relevant way to recover, and
// no reason to let this propagate
Slog.w(TAG, "canceled PendingIntent for " + r.sbn.getPackageName(), ex);
}
}
}
// status bar
if (r.getNotification().icon != 0) {
long identity = Binder.clearCallingIdentity();
try {
mStatusBar.removeNotification(r.statusBarKey);
}
finally {
Binder.restoreCallingIdentity(identity);
}
r.statusBarKey = null;
notifyRemovedLocked(r);
}
// sound
if (mSoundNotification == r) {
mSoundNotification = null;
final long identity = Binder.clearCallingIdentity();
try {
final IRingtonePlayer player = mAudioService.getRingtonePlayer();
if (player != null) {
player.stopAsync();
}
} catch (RemoteException e) {
} finally {
Binder.restoreCallingIdentity(identity);
}
}
// vibrate
if (mVibrateNotification == r) {
mVibrateNotification = null;
long identity = Binder.clearCallingIdentity();
try {
mVibrator.cancel();
}
finally {
Binder.restoreCallingIdentity(identity);
}
}
// light
mLights.remove(r);
if (mLedNotification == r) {
mLedNotification = null;
}
// Save it for users of getHistoricalNotifications()
mArchive.record(r.sbn);
}
/**
* Cancels a notification ONLY if it has all of the {@code mustHaveFlags}
* and none of the {@code mustNotHaveFlags}.
*/
private void cancelNotification(String pkg, String tag, int id, int mustHaveFlags,
int mustNotHaveFlags, boolean sendDelete, int userId) {
EventLog.writeEvent(EventLogTags.NOTIFICATION_CANCEL, pkg, id, tag, userId,
mustHaveFlags, mustNotHaveFlags);
synchronized (mNotificationList) {
int index = indexOfNotificationLocked(pkg, tag, id, userId);
if (index >= 0) {
NotificationRecord r = mNotificationList.get(index);
if ((r.getNotification().flags & mustHaveFlags) != mustHaveFlags) {
return;
}
if ((r.getNotification().flags & mustNotHaveFlags) != 0) {
return;
}
mNotificationList.remove(index);
cancelNotificationLocked(r, sendDelete);
updateLightsLocked();
}
}
}
/**
* Determine whether the userId applies to the notification in question, either because
* they match exactly, or one of them is USER_ALL (which is treated as a wildcard).
*/
private boolean notificationMatchesUserId(NotificationRecord r, int userId) {
return
// looking for USER_ALL notifications? match everything
userId == UserHandle.USER_ALL
// a notification sent to USER_ALL matches any query
|| r.getUserId() == UserHandle.USER_ALL
// an exact user match
|| r.getUserId() == userId;
}
/**
* Cancels all notifications from a given package that have all of the
* {@code mustHaveFlags}.
*/
boolean cancelAllNotificationsInt(String pkg, int mustHaveFlags,
int mustNotHaveFlags, boolean doit, int userId) {
EventLog.writeEvent(EventLogTags.NOTIFICATION_CANCEL_ALL, pkg, userId,
mustHaveFlags, mustNotHaveFlags);
synchronized (mNotificationList) {
final int N = mNotificationList.size();
boolean canceledSomething = false;
for (int i = N-1; i >= 0; --i) {
NotificationRecord r = mNotificationList.get(i);
if (!notificationMatchesUserId(r, userId)) {
continue;
}
// Don't remove notifications to all, if there's no package name specified
if (r.getUserId() == UserHandle.USER_ALL && pkg == null) {
continue;
}
if ((r.getFlags() & mustHaveFlags) != mustHaveFlags) {
continue;
}
if ((r.getFlags() & mustNotHaveFlags) != 0) {
continue;
}
if (pkg != null && !r.sbn.getPackageName().equals(pkg)) {
continue;
}
canceledSomething = true;
if (!doit) {
return true;
}
mNotificationList.remove(i);
cancelNotificationLocked(r, false);
}
if (canceledSomething) {
updateLightsLocked();
}
return canceledSomething;
}
}
public void cancelNotificationWithTag(String pkg, String tag, int id, int userId) {
checkCallerIsSystemOrSameApp(pkg);
userId = ActivityManager.handleIncomingUser(Binder.getCallingPid(),
Binder.getCallingUid(), userId, true, false, "cancelNotificationWithTag", pkg);
// Don't allow client applications to cancel foreground service notis.
cancelNotification(pkg, tag, id, 0,
Binder.getCallingUid() == Process.SYSTEM_UID
? 0 : Notification.FLAG_FOREGROUND_SERVICE, false, userId);
}
public void cancelAllNotifications(String pkg, int userId) {
checkCallerIsSystemOrSameApp(pkg);
userId = ActivityManager.handleIncomingUser(Binder.getCallingPid(),
Binder.getCallingUid(), userId, true, false, "cancelAllNotifications", pkg);
// Calling from user space, don't allow the canceling of actively
// running foreground services.
cancelAllNotificationsInt(pkg, 0, Notification.FLAG_FOREGROUND_SERVICE, true, userId);
}
// Return true if the UID is a system or phone UID and therefore should not have
// any notifications or toasts blocked.
boolean isUidSystem(int uid) {
final int appid = UserHandle.getAppId(uid);
return (appid == Process.SYSTEM_UID || appid == Process.PHONE_UID || uid == 0);
}
// same as isUidSystem(int, int) for the Binder caller's UID.
boolean isCallerSystem() {
return isUidSystem(Binder.getCallingUid());
}
void checkCallerIsSystem() {
if (isCallerSystem()) {
return;
}
throw new SecurityException("Disallowed call for uid " + Binder.getCallingUid());
}
void checkCallerIsSystemOrSameApp(String pkg) {
if (isCallerSystem()) {
return;
}
final int uid = Binder.getCallingUid();
try {
ApplicationInfo ai = AppGlobals.getPackageManager().getApplicationInfo(
pkg, 0, UserHandle.getCallingUserId());
if (!UserHandle.isSameApp(ai.uid, uid)) {
throw new SecurityException("Calling uid " + uid + " gave package"
+ pkg + " which is owned by uid " + ai.uid);
}
} catch (RemoteException re) {
throw new SecurityException("Unknown package " + pkg + "\n" + re);
}
}
void cancelAll(int userId) {
synchronized (mNotificationList) {
final int N = mNotificationList.size();
for (int i=N-1; i>=0; i--) {
NotificationRecord r = mNotificationList.get(i);
if (!notificationMatchesUserId(r, userId)) {
continue;
}
if ((r.getFlags() & (Notification.FLAG_ONGOING_EVENT
| Notification.FLAG_NO_CLEAR)) == 0) {
mNotificationList.remove(i);
cancelNotificationLocked(r, true);
}
}
updateLightsLocked();
}
}
// lock on mNotificationList
private void updateLightsLocked()
{
// handle notification lights
if (mLedNotification == null) {
// get next notification, if any
int n = mLights.size();
if (n > 0) {
mLedNotification = mLights.get(n-1);
}
}
// Don't flash while we are in a call or screen is on
if (mLedNotification == null || mInCall || mScreenOn) {
mNotificationLight.turnOff();
} else {
final Notification ledno = mLedNotification.sbn.getNotification();
int ledARGB = ledno.ledARGB;
int ledOnMS = ledno.ledOnMS;
int ledOffMS = ledno.ledOffMS;
if ((ledno.defaults & Notification.DEFAULT_LIGHTS) != 0) {
ledARGB = mDefaultNotificationColor;
ledOnMS = mDefaultNotificationLedOn;
ledOffMS = mDefaultNotificationLedOff;
}
if (mNotificationPulseEnabled) {
// pulse repeatedly
mNotificationLight.setFlashing(ledARGB, LightsService.LIGHT_FLASH_TIMED,
ledOnMS, ledOffMS);
}
}
}
// lock on mNotificationList
private int indexOfNotificationLocked(String pkg, String tag, int id, int userId)
{
ArrayList<NotificationRecord> list = mNotificationList;
final int len = list.size();
for (int i=0; i<len; i++) {
NotificationRecord r = list.get(i);
if (!notificationMatchesUserId(r, userId) || r.sbn.getId() != id) {
continue;
}
if (tag == null) {
if (r.sbn.getTag() != null) {
continue;
}
} else {
if (!tag.equals(r.sbn.getTag())) {
continue;
}
}
if (r.sbn.getPackageName().equals(pkg)) {
return i;
}
}
return -1;
}
private void updateNotificationPulse() {
synchronized (mNotificationList) {
updateLightsLocked();
}
}
// ======================================================================
@Override
protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
!= PackageManager.PERMISSION_GRANTED) {
pw.println("Permission Denial: can't dump NotificationManager from from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid());
return;
}
pw.println("Current Notification Manager state:");
pw.println(" Listeners (" + mEnabledListenersForCurrentUser.size()
+ ") enabled for current user:");
for (ComponentName cmpt : mEnabledListenersForCurrentUser) {
pw.println(" " + cmpt);
}
pw.println(" Live listeners (" + mListeners.size() + "):");
for (NotificationListenerInfo info : mListeners) {
pw.println(" " + info.component
+ " (user " + info.userid + "): " + info.listener
+ (info.isSystem?" SYSTEM":""));
}
int N;
synchronized (mToastQueue) {
N = mToastQueue.size();
if (N > 0) {
pw.println(" Toast Queue:");
for (int i=0; i<N; i++) {
mToastQueue.get(i).dump(pw, " ");
}
pw.println(" ");
}
}
synchronized (mNotificationList) {
N = mNotificationList.size();
if (N > 0) {
pw.println(" Notification List:");
for (int i=0; i<N; i++) {
mNotificationList.get(i).dump(pw, " ", mContext);
}
pw.println(" ");
}
N = mLights.size();
if (N > 0) {
pw.println(" Lights List:");
for (int i=0; i<N; i++) {
pw.println(" " + mLights.get(i));
}
pw.println(" ");
}
pw.println(" mSoundNotification=" + mSoundNotification);
pw.println(" mVibrateNotification=" + mVibrateNotification);
pw.println(" mDisabledNotifications=0x" + Integer.toHexString(mDisabledNotifications));
pw.println(" mSystemReady=" + mSystemReady);
pw.println(" mArchive=" + mArchive.toString());
Iterator<StatusBarNotification> iter = mArchive.descendingIterator();
int i=0;
while (iter.hasNext()) {
pw.println(" " + iter.next());
if (++i >= 5) {
if (iter.hasNext()) pw.println(" ...");
break;
}
}
}
}
}