@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.i(TAG, "Referrer: " + getReferrer());
mAm = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
if (savedInstanceState != null) {
mOverrideConfig = savedInstanceState.getParcelable(KEY_CONFIGURATION);
if (mOverrideConfig != null) {
applyOverrideConfiguration(mOverrideConfig);
}
}
UserManager um = (UserManager) getSystemService(Context.USER_SERVICE);
List<UserInfo> users = um.getUsers();
mSecondUser = Integer.MAX_VALUE;
for (UserInfo ui : users) {
if (ui.id != 0 && mSecondUser > ui.id) {
mSecondUser = ui.id;
}
}
/*
AlertDialog ad = new AlertDialog.Builder(this).setTitle("title").setMessage("message").create();
ad.getWindow().getAttributes().type = WindowManager.LayoutParams.TYPE_SYSTEM_ERROR;
ad.show();
*/
}
private void cleanUpRemovedUsersLocked() {
final List<UserInfo> users = mUserManager.getUsers(true);
if (users == null || users.size() == 0) {
throw new IllegalStateException("There can't be no users");
}
ArraySet<String> toDelete = new ArraySet<>();
String[] fileNames = mUsageStatsDir.list();
if (fileNames == null) {
// No users to delete.
return;
}
toDelete.addAll(Arrays.asList(fileNames));
final int userCount = users.size();
for (int i = 0; i < userCount; i++) {
final UserInfo userInfo = users.get(i);
toDelete.remove(Integer.toString(userInfo.id));
}
final int deleteCount = toDelete.size();
for (int i = 0; i < deleteCount; i++) {
deleteRecursively(new File(mUsageStatsDir, toDelete.valueAt(i)));
}
}
/** Return list of other users, excluding the current user. */
private List<UserInfo> getUsersExcluding(UserInfo excluding) {
final List<UserInfo> users = mUserManager.getUsers();
final Iterator<UserInfo> i = users.iterator();
while (i.hasNext()) {
if (i.next().id == excluding.id) {
i.remove();
}
}
return users;
}
// Intended to be called only once at startup, after the system is ready. Installs a broadcast
// receiver to monitor ongoing UID changes, so this shouldn't/needn't be called again.
public synchronized void startMonitoring() {
log("Monitoring");
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(Intent.ACTION_USER_ADDED);
intentFilter.addAction(Intent.ACTION_USER_REMOVED);
mContext.registerReceiverAsUser(mIntentReceiver, UserHandle.ALL, intentFilter, null, null);
intentFilter = new IntentFilter();
intentFilter.addAction(Intent.ACTION_PACKAGE_ADDED);
intentFilter.addAction(Intent.ACTION_PACKAGE_REMOVED);
intentFilter.addDataScheme("package");
mContext.registerReceiverAsUser(mIntentReceiver, UserHandle.ALL, intentFilter, null, null);
List<PackageInfo> apps = mPackageManager.getInstalledPackages(GET_PERMISSIONS);
if (apps == null) {
loge("No apps");
return;
}
for (PackageInfo app : apps) {
int uid = app.applicationInfo != null ? app.applicationInfo.uid : -1;
if (uid < 0) {
continue;
}
boolean isNetwork = hasNetworkPermission(app);
boolean isSystem = hasSystemPermission(app);
if (isNetwork || isSystem) {
Boolean permission = mApps.get(uid);
// If multiple packages share a UID (cf: android:sharedUserId) and ask for different
// permissions, don't downgrade (i.e., if it's already SYSTEM, leave it as is).
if (permission == null || permission == NETWORK) {
mApps.put(uid, isSystem);
}
}
}
List<UserInfo> users = mUserManager.getUsers(true); // exclude dying users
if (users != null) {
for (UserInfo user : users) {
mUsers.add(user.id);
}
}
log("Users: " + mUsers.size() + ", Apps: " + mApps.size());
update(mUsers, mApps, true);
}
/**
* * Disables preferences that are less secure than required quality.
*
* @param quality the requested quality.
*/
private void disableUnusablePreferences(final int quality, MutableBoolean allowBiometric) {
final PreferenceScreen entries = getPreferenceScreen();
final boolean onlyShowFallback =
getActivity()
.getIntent()
.getBooleanExtra(LockPatternUtils.LOCKSCREEN_BIOMETRIC_WEAK_FALLBACK, false);
final boolean weakBiometricAvailable =
mChooseLockSettingsHelper.utils().isBiometricWeakInstalled();
// if there are multiple users, disable "None" setting
UserManager mUm = (UserManager) getSystemService(Context.USER_SERVICE);
List<UserInfo> users = mUm.getUsers(true);
final boolean singleUser = users.size() == 1;
for (int i = entries.getPreferenceCount() - 1; i >= 0; --i) {
Preference pref = entries.getPreference(i);
if (pref instanceof PreferenceScreen) {
final String key = ((PreferenceScreen) pref).getKey();
boolean enabled = true;
boolean visible = true;
if (KEY_UNLOCK_SET_OFF.equals(key)) {
enabled = quality <= DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
visible = singleUser; // don't show when there's more than 1 user
} else if (KEY_UNLOCK_SET_NONE.equals(key)) {
enabled = quality <= DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
} else if (KEY_UNLOCK_SET_BIOMETRIC_WEAK.equals(key)) {
enabled =
quality <= DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK
|| allowBiometric.value;
visible = weakBiometricAvailable; // If not available, then don't show it.
} else if (KEY_UNLOCK_SET_PATTERN.equals(key)) {
enabled = quality <= DevicePolicyManager.PASSWORD_QUALITY_SOMETHING;
} else if (KEY_UNLOCK_SET_PIN.equals(key)) {
enabled = quality <= DevicePolicyManager.PASSWORD_QUALITY_NUMERIC;
} else if (KEY_UNLOCK_SET_PASSWORD.equals(key)) {
enabled = quality <= DevicePolicyManager.PASSWORD_QUALITY_COMPLEX;
}
if (!visible || (onlyShowFallback && !allowedForFallback(key))) {
entries.removePreference(pref);
} else if (!enabled) {
pref.setSummary(R.string.unlock_set_unlock_disabled_summary);
pref.setEnabled(false);
}
}
}
}