| /* |
| * Copyright (C) 2013 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.telecom; |
| |
| import android.app.Activity; |
| import android.app.ActivityManagerNative; |
| import android.app.AppOpsManager; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.os.RemoteException; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.provider.Settings; |
| import android.telecom.PhoneAccount; |
| import android.telecom.PhoneAccountHandle; |
| import android.telecom.TelecomManager; |
| import android.telecom.VideoProfile; |
| import android.telephony.DisconnectCause; |
| import android.telephony.PhoneNumberUtils; |
| import android.text.TextUtils; |
| import android.widget.Toast; |
| |
| // TODO: Needed for move to system service: import com.android.internal.R; |
| import com.android.internal.telephony.TelephonyProperties; |
| |
| /** |
| * Activity that handles system CALL actions and forwards them to {@link CallReceiver}. |
| * Handles all three CALL action types: CALL, CALL_PRIVILEGED, and CALL_EMERGENCY. |
| * |
| * Pre-L, the only way apps were were allowed to make outgoing emergency calls was the |
| * ACTION_CALL_PRIVILEGED action (which requires the system only CALL_PRIVILEGED permission). |
| * |
| * In L, any app that has the CALL_PRIVILEGED permission can continue to make outgoing emergency |
| * calls via ACTION_CALL_PRIVILEGED. |
| * |
| * In addition, the default dialer (identified via |
| * {@link android.telecom.TelecomManager#getDefaultPhoneApp()} will also be granted the ability to |
| * make emergency outgoing calls using the CALL action. In order to do this, it must call |
| * startActivityForResult on the CALL intent to allow its package name to be passed to |
| * {@link CallActivity}. Calling startActivity will continue to work on all non-emergency numbers |
| * just like it did pre-L. |
| */ |
| public class CallActivity extends Activity { |
| |
| @Override |
| protected void onCreate(Bundle bundle) { |
| super.onCreate(bundle); |
| |
| // TODO: Figure out if there is something to restore from bundle. |
| // See OutgoingCallBroadcaster in services/Telephony for more. |
| |
| processIntent(getIntent()); |
| |
| // This activity does not have associated UI, so close. |
| finish(); |
| Log.d(this, "onCreate: end"); |
| } |
| |
| /** |
| * Processes intents sent to the activity. |
| * |
| * @param intent The intent. |
| */ |
| private void processIntent(Intent intent) { |
| // Ensure call intents are not processed on devices that are not capable of calling. |
| if (!isVoiceCapable()) { |
| return; |
| } |
| |
| verifyCallAction(intent); |
| String action = intent.getAction(); |
| |
| if (Intent.ACTION_CALL.equals(action) || |
| Intent.ACTION_CALL_PRIVILEGED.equals(action) || |
| Intent.ACTION_CALL_EMERGENCY.equals(action)) { |
| processOutgoingCallIntent(intent); |
| } |
| } |
| |
| private void verifyCallAction(Intent intent) { |
| if (CallActivity.class.getName().equals(intent.getComponent().getClassName())) { |
| // If we were launched directly from the CallActivity, not one of its more privileged |
| // aliases, then make sure that only the non-privileged actions are allowed. |
| if (!Intent.ACTION_CALL.equals(intent.getAction())) { |
| Log.w(this, "Attempt to deliver non-CALL action; forcing to CALL"); |
| intent.setAction(Intent.ACTION_CALL); |
| } |
| } |
| } |
| |
| private void processOutgoingCallIntent(Intent intent) { |
| Uri handle = intent.getData(); |
| String scheme = handle.getScheme(); |
| String uriString = handle.getSchemeSpecificPart(); |
| |
| if (!PhoneAccount.SCHEME_VOICEMAIL.equals(scheme)) { |
| handle = Uri.fromParts(PhoneNumberUtils.isUriNumber(uriString) ? |
| PhoneAccount.SCHEME_SIP : PhoneAccount.SCHEME_TEL, uriString, null); |
| } |
| |
| UserManager userManager = (UserManager) getSystemService(Context.USER_SERVICE); |
| if (userManager.hasUserRestriction(UserManager.DISALLOW_OUTGOING_CALLS) |
| && !TelephonyUtil.shouldProcessAsEmergency(this, handle)) { |
| // Only emergency calls are allowed for users with the DISALLOW_OUTGOING_CALLS |
| // restriction. |
| Toast.makeText(this, getResources().getString(R.string.outgoing_call_not_allowed), |
| Toast.LENGTH_SHORT).show(); |
| Log.d(this, "Rejecting non-emergency phone call due to DISALLOW_OUTGOING_CALLS " |
| + "restriction"); |
| return; |
| } |
| |
| int videoState = intent.getIntExtra( |
| TelecomManager.EXTRA_START_CALL_WITH_VIDEO_STATE, |
| VideoProfile.VideoState.AUDIO_ONLY); |
| Log.d(this, "processOutgoingCallIntent videoState = " + videoState); |
| |
| if (VideoProfile.VideoState.isVideo(videoState) |
| && TelephonyUtil.shouldProcessAsEmergency(this, handle)) { |
| Log.d(this, "Emergency call...Converting video call to voice..."); |
| videoState = VideoProfile.VideoState.AUDIO_ONLY; |
| intent.putExtra(TelecomManager.EXTRA_START_CALL_WITH_VIDEO_STATE, |
| videoState); |
| } |
| |
| if (VideoProfile.VideoState.isVideo(videoState) && isTtyModeEnabled()) { |
| Toast.makeText(this, getResources().getString(R.string. |
| video_call_not_allowed_if_tty_enabled), Toast.LENGTH_SHORT).show(); |
| Log.d(this, "Rejecting video calls as tty is enabled"); |
| return; |
| } |
| |
| AppOpsManager appOps = (AppOpsManager) getSystemService(Context.APP_OPS_SERVICE); |
| int launchedFromUid; |
| String launchedFromPackage; |
| try { |
| launchedFromUid = ActivityManagerNative.getDefault() |
| .getLaunchedFromUid(getActivityToken()); |
| launchedFromPackage = ActivityManagerNative.getDefault() |
| .getLaunchedFromPackage(getActivityToken()); |
| } catch (RemoteException e) { |
| launchedFromUid = -1; |
| launchedFromPackage = null; |
| } |
| if (appOps.noteOpNoThrow(AppOpsManager.OP_CALL_PHONE, launchedFromUid, |
| launchedFromPackage) != AppOpsManager.MODE_ALLOWED) { |
| Log.w(this, "Rejecting call from uid " + launchedFromUid |
| + " package " + launchedFromPackage); |
| return; |
| } |
| |
| intent.putExtra(CallReceiver.KEY_IS_DEFAULT_DIALER, isDefaultDialer()); |
| |
| sendBroadcastToReceiver(intent, false /* isIncoming */); |
| } |
| |
| private boolean isTtyModeEnabled() { |
| return (android.provider.Settings.Secure.getInt( |
| getContentResolver(), |
| android.provider.Settings.Secure.PREFERRED_TTY_MODE, |
| TelecomManager.TTY_MODE_OFF) != TelecomManager.TTY_MODE_OFF); |
| } |
| |
| private void processIncomingCallIntent(Intent intent) { |
| sendBroadcastToReceiver(intent, true /* isIncoming */); |
| } |
| |
| private boolean isDefaultDialer() { |
| final String packageName = getCallingPackage(); |
| if (TextUtils.isEmpty(packageName)) { |
| return false; |
| } |
| |
| final TelecomManager telecomManager = |
| (TelecomManager) getSystemService(Context.TELECOM_SERVICE); |
| final ComponentName defaultPhoneApp = telecomManager.getDefaultPhoneApp(); |
| return (defaultPhoneApp != null |
| && TextUtils.equals(defaultPhoneApp.getPackageName(), packageName)); |
| } |
| |
| /** |
| * Returns whether the device is voice-capable (e.g. a phone vs a tablet). |
| * |
| * @return {@code True} if the device is voice-capable. |
| */ |
| private boolean isVoiceCapable() { |
| return getApplicationContext().getResources().getBoolean( |
| com.android.internal.R.bool.config_voice_capable); |
| } |
| |
| /** |
| * Trampolines the intent to the broadcast receiver that runs only as the primary user. |
| */ |
| private boolean sendBroadcastToReceiver(Intent intent, boolean incoming) { |
| intent.putExtra(CallReceiver.KEY_IS_INCOMING_CALL, incoming); |
| intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); |
| intent.setClass(this, CallReceiver.class); |
| Log.d(this, "Sending broadcast as user to CallReceiver"); |
| sendBroadcastAsUser(intent, UserHandle.OWNER); |
| return true; |
| } |
| } |