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/*
* Copyright (C) 2014 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.services.telephony;
import android.annotation.NonNull;
import android.content.ActivityNotFoundException;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.Uri;
import android.os.Bundle;
import android.provider.Settings;
import android.telecom.Conference;
import android.telecom.Connection;
import android.telecom.ConnectionRequest;
import android.telecom.ConnectionService;
import android.telecom.DisconnectCause;
import android.telecom.PhoneAccount;
import android.telecom.PhoneAccountHandle;
import android.telecom.TelecomManager;
import android.telecom.VideoProfile;
import android.telephony.CarrierConfigManager;
import android.telephony.PhoneNumberUtils;
import android.telephony.RadioAccessFamily;
import android.telephony.ServiceState;
import android.telephony.SubscriptionManager;
import android.telephony.TelephonyManager;
import android.telephony.emergency.EmergencyNumber;
import android.text.TextUtils;
import android.util.Pair;
import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.telephony.Call;
import com.android.internal.telephony.CallStateException;
import com.android.internal.telephony.GsmCdmaPhone;
import com.android.internal.telephony.IccCard;
import com.android.internal.telephony.IccCardConstants;
import com.android.internal.telephony.Phone;
import com.android.internal.telephony.PhoneConstants;
import com.android.internal.telephony.PhoneFactory;
import com.android.internal.telephony.PhoneSwitcher;
import com.android.internal.telephony.RIL;
import com.android.internal.telephony.SubscriptionController;
import com.android.internal.telephony.imsphone.ImsExternalCallTracker;
import com.android.internal.telephony.imsphone.ImsPhone;
import com.android.internal.telephony.imsphone.ImsPhoneConnection;
import com.android.phone.MMIDialogActivity;
import com.android.phone.PhoneUtils;
import com.android.phone.R;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Queue;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.TimeUnit;
import java.util.regex.Pattern;
import javax.annotation.Nullable;
/**
* Service for making GSM and CDMA connections.
*/
public class TelephonyConnectionService extends ConnectionService {
// Timeout before we continue with the emergency call without waiting for DDS switch response
// from the modem.
private static final int DEFAULT_DATA_SWITCH_TIMEOUT_MS = 1000;
// If configured, reject attempts to dial numbers matching this pattern.
private static final Pattern CDMA_ACTIVATION_CODE_REGEX_PATTERN =
Pattern.compile("\\*228[0-9]{0,2}");
private final TelephonyConnectionServiceProxy mTelephonyConnectionServiceProxy =
new TelephonyConnectionServiceProxy() {
@Override
public Collection<Connection> getAllConnections() {
return TelephonyConnectionService.this.getAllConnections();
}
@Override
public void addConference(TelephonyConference mTelephonyConference) {
TelephonyConnectionService.this.addConference(mTelephonyConference);
}
@Override
public void addConference(ImsConference mImsConference) {
TelephonyConnectionService.this.addConference(mImsConference);
}
@Override
public void removeConnection(Connection connection) {
TelephonyConnectionService.this.removeConnection(connection);
}
@Override
public void addExistingConnection(PhoneAccountHandle phoneAccountHandle,
Connection connection) {
TelephonyConnectionService.this
.addExistingConnection(phoneAccountHandle, connection);
}
@Override
public void addExistingConnection(PhoneAccountHandle phoneAccountHandle,
Connection connection, Conference conference) {
TelephonyConnectionService.this
.addExistingConnection(phoneAccountHandle, connection, conference);
}
@Override
public void addConnectionToConferenceController(TelephonyConnection connection) {
TelephonyConnectionService.this.addConnectionToConferenceController(connection);
}
};
private final Connection.Listener mConnectionListener = new Connection.Listener() {
@Override
public void onConferenceChanged(Connection connection, Conference conference) {
mHoldTracker.updateHoldCapability(connection.getPhoneAccountHandle());
}
};
private final BroadcastReceiver mTtyBroadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
Log.v(this, "onReceive, action: %s", action);
if (action.equals(TelecomManager.ACTION_TTY_PREFERRED_MODE_CHANGED)) {
int newPreferredTtyMode = intent.getIntExtra(
TelecomManager.EXTRA_TTY_PREFERRED_MODE, TelecomManager.TTY_MODE_OFF);
boolean isTtyNowEnabled = newPreferredTtyMode != TelecomManager.TTY_MODE_OFF;
if (isTtyNowEnabled != mIsTtyEnabled) {
handleTtyModeChange(isTtyNowEnabled);
}
}
}
};
private final TelephonyConferenceController mTelephonyConferenceController =
new TelephonyConferenceController(mTelephonyConnectionServiceProxy);
private final CdmaConferenceController mCdmaConferenceController =
new CdmaConferenceController(this);
private final ImsConferenceController mImsConferenceController =
new ImsConferenceController(TelecomAccountRegistry.getInstance(this),
mTelephonyConnectionServiceProxy,
// FeatureFlagProxy; used to determine if standalone call emulation is enabled.
// TODO: Move to carrier config
() -> true);
private ComponentName mExpectedComponentName = null;
private RadioOnHelper mRadioOnHelper;
private EmergencyTonePlayer mEmergencyTonePlayer;
private HoldTracker mHoldTracker;
private boolean mIsTtyEnabled;
// Contains one TelephonyConnection that has placed a call and a memory of which Phones it has
// already tried to connect with. There should be only one TelephonyConnection trying to place a
// call at one time. We also only access this cache from a TelephonyConnection that wishes to
// redial, so we use a WeakReference that will become stale once the TelephonyConnection is
// destroyed.
@VisibleForTesting
public Pair<WeakReference<TelephonyConnection>, Queue<Phone>> mEmergencyRetryCache;
/**
* Keeps track of the status of a SIM slot.
*/
private static class SlotStatus {
public int slotId;
// RAT capabilities
public int capabilities;
// By default, we will assume that the slots are not locked.
public boolean isLocked = false;
// Is the emergency number associated with the slot
public boolean hasDialedEmergencyNumber = false;
public SlotStatus(int slotId, int capabilities) {
this.slotId = slotId;
this.capabilities = capabilities;
}
}
// SubscriptionManager Proxy interface for testing
public interface SubscriptionManagerProxy {
int getDefaultVoicePhoneId();
int getSimStateForSlotIdx(int slotId);
int getPhoneId(int subId);
}
private SubscriptionManagerProxy mSubscriptionManagerProxy = new SubscriptionManagerProxy() {
@Override
public int getDefaultVoicePhoneId() {
return SubscriptionManager.getDefaultVoicePhoneId();
}
@Override
public int getSimStateForSlotIdx(int slotId) {
return SubscriptionManager.getSimStateForSlotIndex(slotId);
}
@Override
public int getPhoneId(int subId) {
return SubscriptionManager.getPhoneId(subId);
}
};
// TelephonyManager Proxy interface for testing
@VisibleForTesting
public interface TelephonyManagerProxy {
int getPhoneCount();
boolean hasIccCard(int slotId);
boolean isCurrentEmergencyNumber(String number);
Map<Integer, List<EmergencyNumber>> getCurrentEmergencyNumberList();
}
private TelephonyManagerProxy mTelephonyManagerProxy;
private class TelephonyManagerProxyImpl implements TelephonyManagerProxy {
private final TelephonyManager mTelephonyManager;
TelephonyManagerProxyImpl(Context context) {
mTelephonyManager = new TelephonyManager(context);
}
@Override
public int getPhoneCount() {
return mTelephonyManager.getPhoneCount();
}
@Override
public boolean hasIccCard(int slotId) {
return mTelephonyManager.hasIccCard(slotId);
}
@Override
public boolean isCurrentEmergencyNumber(String number) {
return mTelephonyManager.isEmergencyNumber(number);
}
@Override
public Map<Integer, List<EmergencyNumber>> getCurrentEmergencyNumberList() {
return mTelephonyManager.getEmergencyNumberList();
}
}
//PhoneFactory proxy interface for testing
@VisibleForTesting
public interface PhoneFactoryProxy {
Phone getPhone(int index);
Phone getDefaultPhone();
Phone[] getPhones();
}
private PhoneFactoryProxy mPhoneFactoryProxy = new PhoneFactoryProxy() {
@Override
public Phone getPhone(int index) {
return PhoneFactory.getPhone(index);
}
@Override
public Phone getDefaultPhone() {
return PhoneFactory.getDefaultPhone();
}
@Override
public Phone[] getPhones() {
return PhoneFactory.getPhones();
}
};
@VisibleForTesting
public void setSubscriptionManagerProxy(SubscriptionManagerProxy proxy) {
mSubscriptionManagerProxy = proxy;
}
@VisibleForTesting
public void setTelephonyManagerProxy(TelephonyManagerProxy proxy) {
mTelephonyManagerProxy = proxy;
}
@VisibleForTesting
public void setPhoneFactoryProxy(PhoneFactoryProxy proxy) {
mPhoneFactoryProxy = proxy;
}
/**
* A listener to actionable events specific to the TelephonyConnection.
*/
private final TelephonyConnection.TelephonyConnectionListener mTelephonyConnectionListener =
new TelephonyConnection.TelephonyConnectionListener() {
@Override
public void onOriginalConnectionConfigured(TelephonyConnection c) {
addConnectionToConferenceController(c);
}
@Override
public void onOriginalConnectionRetry(TelephonyConnection c, boolean isPermanentFailure) {
retryOutgoingOriginalConnection(c, isPermanentFailure);
}
};
@Override
public void onCreate() {
super.onCreate();
Log.initLogging(this);
setTelephonyManagerProxy(new TelephonyManagerProxyImpl(getApplicationContext()));
mExpectedComponentName = new ComponentName(this, this.getClass());
mEmergencyTonePlayer = new EmergencyTonePlayer(this);
TelecomAccountRegistry.getInstance(this).setTelephonyConnectionService(this);
mHoldTracker = new HoldTracker();
mIsTtyEnabled = isTtyModeEnabled(getApplicationContext());
IntentFilter intentFilter = new IntentFilter(
TelecomManager.ACTION_TTY_PREFERRED_MODE_CHANGED);
registerReceiver(mTtyBroadcastReceiver, intentFilter);
}
@Override
public boolean onUnbind(Intent intent) {
unregisterReceiver(mTtyBroadcastReceiver);
return super.onUnbind(intent);
}
@Override
public Connection onCreateOutgoingConnection(
PhoneAccountHandle connectionManagerPhoneAccount,
final ConnectionRequest request) {
Log.i(this, "onCreateOutgoingConnection, request: " + request);
Uri handle = request.getAddress();
if (handle == null) {
Log.d(this, "onCreateOutgoingConnection, handle is null");
return Connection.createFailedConnection(
DisconnectCauseUtil.toTelecomDisconnectCause(
android.telephony.DisconnectCause.NO_PHONE_NUMBER_SUPPLIED,
"No phone number supplied"));
}
String scheme = handle.getScheme();
String number;
if (PhoneAccount.SCHEME_VOICEMAIL.equals(scheme)) {
// TODO: We don't check for SecurityException here (requires
// CALL_PRIVILEGED permission).
final Phone phone = getPhoneForAccount(request.getAccountHandle(),
false /* isEmergencyCall */, null /* not an emergency call */);
if (phone == null) {
Log.d(this, "onCreateOutgoingConnection, phone is null");
return Connection.createFailedConnection(
DisconnectCauseUtil.toTelecomDisconnectCause(
android.telephony.DisconnectCause.OUT_OF_SERVICE,
"Phone is null"));
}
number = phone.getVoiceMailNumber();
if (TextUtils.isEmpty(number)) {
Log.d(this, "onCreateOutgoingConnection, no voicemail number set.");
return Connection.createFailedConnection(
DisconnectCauseUtil.toTelecomDisconnectCause(
android.telephony.DisconnectCause.VOICEMAIL_NUMBER_MISSING,
"Voicemail scheme provided but no voicemail number set.",
phone.getPhoneId()));
}
// Convert voicemail: to tel:
handle = Uri.fromParts(PhoneAccount.SCHEME_TEL, number, null);
} else {
if (!PhoneAccount.SCHEME_TEL.equals(scheme)) {
Log.d(this, "onCreateOutgoingConnection, Handle %s is not type tel", scheme);
return Connection.createFailedConnection(
DisconnectCauseUtil.toTelecomDisconnectCause(
android.telephony.DisconnectCause.INVALID_NUMBER,
"Handle scheme is not type tel"));
}
number = handle.getSchemeSpecificPart();
if (TextUtils.isEmpty(number)) {
Log.d(this, "onCreateOutgoingConnection, unable to parse number");
return Connection.createFailedConnection(
DisconnectCauseUtil.toTelecomDisconnectCause(
android.telephony.DisconnectCause.INVALID_NUMBER,
"Unable to parse number"));
}
final Phone phone = getPhoneForAccount(request.getAccountHandle(),
false /* isEmergencyCall*/, null /* not an emergency call */);
if (phone != null && CDMA_ACTIVATION_CODE_REGEX_PATTERN.matcher(number).matches()) {
// Obtain the configuration for the outgoing phone's SIM. If the outgoing number
// matches the *228 regex pattern, fail the call. This number is used for OTASP, and
// when dialed could lock LTE SIMs to 3G if not prohibited..
boolean disableActivation = false;
CarrierConfigManager cfgManager = (CarrierConfigManager)
phone.getContext().getSystemService(Context.CARRIER_CONFIG_SERVICE);
if (cfgManager != null) {
disableActivation = cfgManager.getConfigForSubId(phone.getSubId())
.getBoolean(CarrierConfigManager.KEY_DISABLE_CDMA_ACTIVATION_CODE_BOOL);
}
if (disableActivation) {
return Connection.createFailedConnection(
DisconnectCauseUtil.toTelecomDisconnectCause(
android.telephony.DisconnectCause
.CDMA_ALREADY_ACTIVATED,
"Tried to dial *228",
phone.getPhoneId()));
}
}
}
final boolean isEmergencyNumber = mTelephonyManagerProxy.isCurrentEmergencyNumber(number);
// Find out if this is a test emergency number
final boolean isTestEmergencyNumber = isEmergencyNumberTestNumber(number);
// Convert into emergency number if necessary
// This is required in some regions (e.g. Taiwan).
if (isEmergencyNumber) {
final Phone phone = getPhoneForAccount(request.getAccountHandle(), false,
handle.getSchemeSpecificPart());
// We only do the conversion if the phone is not in service. The un-converted
// emergency numbers will go to the correct destination when the phone is in-service,
// so they will only need the special emergency call setup when the phone is out of
// service.
if (phone == null || phone.getServiceState().getState()
!= ServiceState.STATE_IN_SERVICE) {
String convertedNumber = PhoneNumberUtils.convertToEmergencyNumber(this, number);
if (!TextUtils.equals(convertedNumber, number)) {
Log.i(this, "onCreateOutgoingConnection, converted to emergency number");
number = convertedNumber;
handle = Uri.fromParts(PhoneAccount.SCHEME_TEL, number, null);
}
}
}
final String numberToDial = number;
final boolean isAirplaneModeOn = Settings.Global.getInt(getContentResolver(),
Settings.Global.AIRPLANE_MODE_ON, 0) > 0;
boolean needToTurnOnRadio = (isEmergencyNumber && (!isRadioOn() || isAirplaneModeOn))
|| isRadioPowerDownOnBluetooth();
if (needToTurnOnRadio) {
final Uri resultHandle = handle;
// By default, Connection based on the default Phone, since we need to return to Telecom
// now.
final int originalPhoneType = PhoneFactory.getDefaultPhone().getPhoneType();
final Connection resultConnection = getTelephonyConnection(request, numberToDial,
isEmergencyNumber, resultHandle, PhoneFactory.getDefaultPhone());
if (mRadioOnHelper == null) {
mRadioOnHelper = new RadioOnHelper(this);
}
mRadioOnHelper.triggerRadioOnAndListen(new RadioOnStateListener.Callback() {
@Override
public void onComplete(RadioOnStateListener listener, boolean isRadioReady) {
handleOnComplete(isRadioReady, isEmergencyNumber, resultConnection, request,
numberToDial, resultHandle, originalPhoneType);
}
@Override
public boolean isOkToCall(Phone phone, int serviceState) {
// HAL 1.4 introduced a new variant of dial for emergency calls, which includes
// an isTesting parameter. For HAL 1.4+, do not wait for IN_SERVICE, this will
// be handled at the RIL/vendor level by emergencyDial(...).
boolean waitForInServiceToDialEmergency = isTestEmergencyNumber
&& phone.getHalVersion().less(RIL.RADIO_HAL_VERSION_1_4);
if (isEmergencyNumber && !waitForInServiceToDialEmergency) {
// We currently only look to make sure that the radio is on before dialing.
// We should be able to make emergency calls at any time after the radio has
// been powered on and isn't in the UNAVAILABLE state, even if it is
// reporting the OUT_OF_SERVICE state.
return (phone.getState() == PhoneConstants.State.OFFHOOK)
|| phone.getServiceState().getState() != ServiceState.STATE_POWER_OFF;
} else {
// Wait until we are in service and ready to make calls. This can happen
// when we power down the radio on bluetooth to save power on watches or if
// it is a test emergency number and we have to wait for the device to move
// IN_SERVICE before the call can take place over normal routing.
return (phone.getState() == PhoneConstants.State.OFFHOOK)
|| serviceState == ServiceState.STATE_IN_SERVICE;
}
}
});
// Return the still unconnected GsmConnection and wait for the Radios to boot before
// connecting it to the underlying Phone.
return resultConnection;
} else {
if (!canAddCall() && !isEmergencyNumber) {
Log.d(this, "onCreateOutgoingConnection, cannot add call .");
return Connection.createFailedConnection(
new DisconnectCause(DisconnectCause.ERROR,
getApplicationContext().getText(
R.string.incall_error_cannot_add_call),
getApplicationContext().getText(
R.string.incall_error_cannot_add_call),
"Add call restricted due to ongoing video call"));
}
// Get the right phone object from the account data passed in.
final Phone phone = getPhoneForAccount(request.getAccountHandle(), isEmergencyNumber,
/* Note: when not an emergency, handle can be null for unknown callers */
handle == null ? null : handle.getSchemeSpecificPart());
if (!isEmergencyNumber) {
final Connection resultConnection = getTelephonyConnection(request, numberToDial,
false, handle, phone);
return placeOutgoingConnection(request, resultConnection, phone);
} else {
final Connection resultConnection = getTelephonyConnection(request, numberToDial,
true, handle, phone);
CompletableFuture<Boolean> phoneFuture = delayDialForDdsSwitch(phone);
phoneFuture.whenComplete((result, error) -> {
if (error != null) {
Log.w(this, "onCreateOutgoingConn - delayDialForDdsSwitch exception= "
+ error.getMessage());
}
Log.i(this, "onCreateOutgoingConn - delayDialForDdsSwitch result = " + result);
placeOutgoingConnection(request, resultConnection, phone);
});
return resultConnection;
}
}
}
private Connection placeOutgoingConnection(ConnectionRequest request,
Connection resultConnection, Phone phone) {
// If there was a failure, the resulting connection will not be a TelephonyConnection,
// so don't place the call!
if (resultConnection instanceof TelephonyConnection) {
if (request.getExtras() != null && request.getExtras().getBoolean(
TelecomManager.EXTRA_USE_ASSISTED_DIALING, false)) {
((TelephonyConnection) resultConnection).setIsUsingAssistedDialing(true);
}
placeOutgoingConnection((TelephonyConnection) resultConnection, phone, request);
}
return resultConnection;
}
private boolean isEmergencyNumberTestNumber(String number) {
number = PhoneNumberUtils.stripSeparators(number);
Map<Integer, List<EmergencyNumber>> list =
mTelephonyManagerProxy.getCurrentEmergencyNumberList();
// Do not worry about which subscription the test emergency call is on yet, only detect that
// it is an emergency.
for (Integer sub : list.keySet()) {
for (EmergencyNumber eNumber : list.get(sub)) {
if (number.equals(eNumber.getNumber())
&& eNumber.isFromSources(EmergencyNumber.EMERGENCY_NUMBER_SOURCE_TEST)) {
Log.i(this, "isEmergencyNumberTestNumber: " + number + " has been detected as "
+ "a test emergency number.,");
return true;
}
}
}
return false;
}
/**
* Whether the cellular radio is power off because the device is on Bluetooth.
*/
private boolean isRadioPowerDownOnBluetooth() {
final Context context = getApplicationContext();
final boolean allowed = context.getResources().getBoolean(
R.bool.config_allowRadioPowerDownOnBluetooth);
final int cellOn = Settings.Global.getInt(context.getContentResolver(),
Settings.Global.CELL_ON,
PhoneConstants.CELL_ON_FLAG);
return (allowed && cellOn == PhoneConstants.CELL_ON_FLAG && !isRadioOn());
}
/**
* Handle the onComplete callback of RadioOnStateListener.
*/
private void handleOnComplete(boolean isRadioReady, boolean isEmergencyNumber,
Connection originalConnection, ConnectionRequest request, String numberToDial,
Uri handle, int originalPhoneType) {
// Make sure the Call has not already been canceled by the user.
if (originalConnection.getState() == Connection.STATE_DISCONNECTED) {
Log.i(this, "Call disconnected before the outgoing call was placed. Skipping call "
+ "placement.");
return;
}
// Get the right phone object since the radio has been turned on successfully.
if (isRadioReady) {
final Phone phone = getPhoneForAccount(request.getAccountHandle(), isEmergencyNumber,
/* Note: when not an emergency, handle can be null for unknown callers */
handle == null ? null : handle.getSchemeSpecificPart());
if (!isEmergencyNumber) {
adjustAndPlaceOutgoingConnection(phone, originalConnection, request, numberToDial,
handle, originalPhoneType, false);
} else {
delayDialForDdsSwitch(phone).whenComplete((result, error) -> {
if (error != null) {
Log.w(this, "handleOnComplete - delayDialForDdsSwitch exception= "
+ error.getMessage());
}
Log.i(this, "handleOnComplete - delayDialForDdsSwitch result = " + result);
adjustAndPlaceOutgoingConnection(phone, originalConnection, request,
numberToDial, handle, originalPhoneType, true);
});
}
} else {
Log.w(this, "onCreateOutgoingConnection, failed to turn on radio");
originalConnection.setDisconnected(
DisconnectCauseUtil.toTelecomDisconnectCause(
android.telephony.DisconnectCause.POWER_OFF,
"Failed to turn on radio."));
originalConnection.destroy();
}
}
private void adjustAndPlaceOutgoingConnection(Phone phone, Connection connectionToEvaluate,
ConnectionRequest request, String numberToDial, Uri handle, int originalPhoneType,
boolean isEmergencyNumber) {
// If the PhoneType of the Phone being used is different than the Default Phone, then we
// need to create a new Connection using that PhoneType and replace it in Telecom.
if (phone.getPhoneType() != originalPhoneType) {
Connection repConnection = getTelephonyConnection(request, numberToDial,
isEmergencyNumber, handle, phone);
// If there was a failure, the resulting connection will not be a TelephonyConnection,
// so don't place the call, just return!
if (repConnection instanceof TelephonyConnection) {
placeOutgoingConnection((TelephonyConnection) repConnection, phone, request);
}
// Notify Telecom of the new Connection type.
// TODO: Switch out the underlying connection instead of creating a new
// one and causing UI Jank.
boolean noActiveSimCard = SubscriptionController.getInstance()
.getActiveSubInfoCount(phone.getContext().getOpPackageName()) == 0;
// If there's no active sim card and the device is in emergency mode, use E account.
addExistingConnection(PhoneUtils.makePstnPhoneAccountHandleWithPrefix(
phone, "", isEmergencyNumber && noActiveSimCard), repConnection);
// Remove the old connection from Telecom after.
connectionToEvaluate.setDisconnected(
DisconnectCauseUtil.toTelecomDisconnectCause(
android.telephony.DisconnectCause.OUTGOING_CANCELED,
"Reconnecting outgoing Emergency Call.",
phone.getPhoneId()));
connectionToEvaluate.destroy();
} else {
placeOutgoingConnection((TelephonyConnection) connectionToEvaluate, phone, request);
}
}
/**
* @return {@code true} if any other call is disabling the ability to add calls, {@code false}
* otherwise.
*/
private boolean canAddCall() {
Collection<Connection> connections = getAllConnections();
for (Connection connection : connections) {
if (connection.getExtras() != null &&
connection.getExtras().getBoolean(Connection.EXTRA_DISABLE_ADD_CALL, false)) {
return false;
}
}
return true;
}
private Connection getTelephonyConnection(final ConnectionRequest request, final String number,
boolean isEmergencyNumber, final Uri handle, Phone phone) {
if (phone == null) {
final Context context = getApplicationContext();
if (context.getResources().getBoolean(R.bool.config_checkSimStateBeforeOutgoingCall)) {
// Check SIM card state before the outgoing call.
// Start the SIM unlock activity if PIN_REQUIRED.
final Phone defaultPhone = mPhoneFactoryProxy.getDefaultPhone();
final IccCard icc = defaultPhone.getIccCard();
IccCardConstants.State simState = IccCardConstants.State.UNKNOWN;
if (icc != null) {
simState = icc.getState();
}
if (simState == IccCardConstants.State.PIN_REQUIRED) {
final String simUnlockUiPackage = context.getResources().getString(
R.string.config_simUnlockUiPackage);
final String simUnlockUiClass = context.getResources().getString(
R.string.config_simUnlockUiClass);
if (simUnlockUiPackage != null && simUnlockUiClass != null) {
Intent simUnlockIntent = new Intent().setComponent(new ComponentName(
simUnlockUiPackage, simUnlockUiClass));
simUnlockIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
try {
context.startActivity(simUnlockIntent);
} catch (ActivityNotFoundException exception) {
Log.e(this, exception, "Unable to find SIM unlock UI activity.");
}
}
return Connection.createFailedConnection(
DisconnectCauseUtil.toTelecomDisconnectCause(
android.telephony.DisconnectCause.OUT_OF_SERVICE,
"SIM_STATE_PIN_REQUIRED"));
}
}
Log.d(this, "onCreateOutgoingConnection, phone is null");
return Connection.createFailedConnection(
DisconnectCauseUtil.toTelecomDisconnectCause(
android.telephony.DisconnectCause.OUT_OF_SERVICE, "Phone is null"));
}
// Check both voice & data RAT to enable normal CS call,
// when voice RAT is OOS but Data RAT is present.
int state = phone.getServiceState().getState();
if (state == ServiceState.STATE_OUT_OF_SERVICE) {
int dataNetType = phone.getServiceState().getDataNetworkType();
if (dataNetType == TelephonyManager.NETWORK_TYPE_LTE ||
dataNetType == TelephonyManager.NETWORK_TYPE_LTE_CA) {
state = phone.getServiceState().getDataRegState();
}
}
// If we're dialing a non-emergency number and the phone is in ECM mode, reject the call if
// carrier configuration specifies that we cannot make non-emergency calls in ECM mode.
if (!isEmergencyNumber && phone.isInEcm()) {
boolean allowNonEmergencyCalls = true;
CarrierConfigManager cfgManager = (CarrierConfigManager)
phone.getContext().getSystemService(Context.CARRIER_CONFIG_SERVICE);
if (cfgManager != null) {
allowNonEmergencyCalls = cfgManager.getConfigForSubId(phone.getSubId())
.getBoolean(CarrierConfigManager.KEY_ALLOW_NON_EMERGENCY_CALLS_IN_ECM_BOOL);
}
if (!allowNonEmergencyCalls) {
return Connection.createFailedConnection(
DisconnectCauseUtil.toTelecomDisconnectCause(
android.telephony.DisconnectCause.CDMA_NOT_EMERGENCY,
"Cannot make non-emergency call in ECM mode.",
phone.getPhoneId()));
}
}
if (!isEmergencyNumber) {
switch (state) {
case ServiceState.STATE_IN_SERVICE:
case ServiceState.STATE_EMERGENCY_ONLY:
break;
case ServiceState.STATE_OUT_OF_SERVICE:
if (phone.isUtEnabled() && number.endsWith("#")) {
Log.d(this, "onCreateOutgoingConnection dial for UT");
break;
} else {
return Connection.createFailedConnection(
DisconnectCauseUtil.toTelecomDisconnectCause(
android.telephony.DisconnectCause.OUT_OF_SERVICE,
"ServiceState.STATE_OUT_OF_SERVICE",
phone.getPhoneId()));
}
case ServiceState.STATE_POWER_OFF:
// Don't disconnect if radio is power off because the device is on Bluetooth.
if (isRadioPowerDownOnBluetooth()) {
break;
}
return Connection.createFailedConnection(
DisconnectCauseUtil.toTelecomDisconnectCause(
android.telephony.DisconnectCause.POWER_OFF,
"ServiceState.STATE_POWER_OFF",
phone.getPhoneId()));
default:
Log.d(this, "onCreateOutgoingConnection, unknown service state: %d", state);
return Connection.createFailedConnection(
DisconnectCauseUtil.toTelecomDisconnectCause(
android.telephony.DisconnectCause.OUTGOING_FAILURE,
"Unknown service state " + state,
phone.getPhoneId()));
}
}
final Context context = getApplicationContext();
final boolean isTtyModeEnabled = isTtyModeEnabled(context);
if (VideoProfile.isVideo(request.getVideoState()) && isTtyModeEnabled
&& !isEmergencyNumber) {
return Connection.createFailedConnection(DisconnectCauseUtil.toTelecomDisconnectCause(
android.telephony.DisconnectCause.VIDEO_CALL_NOT_ALLOWED_WHILE_TTY_ENABLED,
null, phone.getPhoneId()));
}
// Check for additional limits on CDMA phones.
final Connection failedConnection = checkAdditionalOutgoingCallLimits(phone);
if (failedConnection != null) {
return failedConnection;
}
// Check roaming status to see if we should block custom call forwarding codes
if (blockCallForwardingNumberWhileRoaming(phone, number)) {
return Connection.createFailedConnection(
DisconnectCauseUtil.toTelecomDisconnectCause(
android.telephony.DisconnectCause.DIALED_CALL_FORWARDING_WHILE_ROAMING,
"Call forwarding while roaming",
phone.getPhoneId()));
}
final TelephonyConnection connection =
createConnectionFor(phone, null, true /* isOutgoing */, request.getAccountHandle(),
request.getTelecomCallId(), request.getAddress(), request.getVideoState());
if (connection == null) {
return Connection.createFailedConnection(
DisconnectCauseUtil.toTelecomDisconnectCause(
android.telephony.DisconnectCause.OUTGOING_FAILURE,
"Invalid phone type",
phone.getPhoneId()));
}
connection.setAddress(handle, PhoneConstants.PRESENTATION_ALLOWED);
connection.setInitializing();
connection.setVideoState(request.getVideoState());
connection.setRttTextStream(request.getRttTextStream());
connection.setTtyEnabled(isTtyModeEnabled);
return connection;
}
@Override
public Connection onCreateIncomingConnection(
PhoneAccountHandle connectionManagerPhoneAccount,
ConnectionRequest request) {
Log.i(this, "onCreateIncomingConnection, request: " + request);
// If there is an incoming emergency CDMA Call (while the phone is in ECBM w/ No SIM),
// make sure the PhoneAccount lookup retrieves the default Emergency Phone.
PhoneAccountHandle accountHandle = request.getAccountHandle();
boolean isEmergency = false;
if (accountHandle != null && PhoneUtils.EMERGENCY_ACCOUNT_HANDLE_ID.equals(
accountHandle.getId())) {
Log.i(this, "Emergency PhoneAccountHandle is being used for incoming call... " +
"Treat as an Emergency Call.");
isEmergency = true;
}
Phone phone = getPhoneForAccount(accountHandle, isEmergency,
/* Note: when not an emergency, handle can be null for unknown callers */
request.getAddress() == null ? null : request.getAddress().getSchemeSpecificPart());
if (phone == null) {
return Connection.createFailedConnection(
DisconnectCauseUtil.toTelecomDisconnectCause(
android.telephony.DisconnectCause.ERROR_UNSPECIFIED,
"Phone is null"));
}
Call call = phone.getRingingCall();
if (!call.getState().isRinging()) {
Log.i(this, "onCreateIncomingConnection, no ringing call");
return Connection.createFailedConnection(
DisconnectCauseUtil.toTelecomDisconnectCause(
android.telephony.DisconnectCause.INCOMING_MISSED,
"Found no ringing call",
phone.getPhoneId()));
}
com.android.internal.telephony.Connection originalConnection =
call.getState() == Call.State.WAITING ?
call.getLatestConnection() : call.getEarliestConnection();
if (isOriginalConnectionKnown(originalConnection)) {
Log.i(this, "onCreateIncomingConnection, original connection already registered");
return Connection.createCanceledConnection();
}
// We should rely on the originalConnection to get the video state. The request coming
// from Telecom does not know the video state of the incoming call.
int videoState = originalConnection != null ? originalConnection.getVideoState() :
VideoProfile.STATE_AUDIO_ONLY;
TelephonyConnection connection =
createConnectionFor(phone, originalConnection, false /* isOutgoing */,
request.getAccountHandle(), request.getTelecomCallId(),
request.getAddress(), videoState);
handleIncomingRtt(request, originalConnection);
if (connection == null) {
return Connection.createCanceledConnection();
} else {
return connection;
}
}
private void handleIncomingRtt(ConnectionRequest request,
com.android.internal.telephony.Connection originalConnection) {
if (originalConnection == null
|| originalConnection.getPhoneType() != PhoneConstants.PHONE_TYPE_IMS) {
if (request.isRequestingRtt()) {
Log.w(this, "Requesting RTT on non-IMS call, ignoring");
}
return;
}
ImsPhoneConnection imsOriginalConnection = (ImsPhoneConnection) originalConnection;
if (!request.isRequestingRtt()) {
if (imsOriginalConnection.isRttEnabledForCall()) {
Log.w(this, "Incoming call requested RTT but we did not get a RttTextStream");
}
return;
}
Log.i(this, "Setting RTT stream on ImsPhoneConnection in case we need it later");
imsOriginalConnection.setCurrentRttTextStream(request.getRttTextStream());
if (!imsOriginalConnection.isRttEnabledForCall()) {
if (request.isRequestingRtt()) {
Log.w(this, "Incoming call processed as RTT but did not come in as one. Ignoring");
}
return;
}
Log.i(this, "Setting the call to be answered with RTT on.");
imsOriginalConnection.getImsCall().setAnswerWithRtt();
}
/**
* Called by the {@link ConnectionService} when a newly created {@link Connection} has been
* added to the {@link ConnectionService} and sent to Telecom. Here it is safe to send
* connection events.
*
* @param connection the {@link Connection}.
*/
@Override
public void onCreateConnectionComplete(Connection connection) {
if (connection instanceof TelephonyConnection) {
TelephonyConnection telephonyConnection = (TelephonyConnection) connection;
maybeSendInternationalCallEvent(telephonyConnection);
}
}
@Override
public void triggerConferenceRecalculate() {
if (mTelephonyConferenceController.shouldRecalculate()) {
mTelephonyConferenceController.recalculate();
}
}
@Override
public Connection onCreateUnknownConnection(PhoneAccountHandle connectionManagerPhoneAccount,
ConnectionRequest request) {
Log.i(this, "onCreateUnknownConnection, request: " + request);
// Use the registered emergency Phone if the PhoneAccountHandle is set to Telephony's
// Emergency PhoneAccount
PhoneAccountHandle accountHandle = request.getAccountHandle();
boolean isEmergency = false;
if (accountHandle != null && PhoneUtils.EMERGENCY_ACCOUNT_HANDLE_ID.equals(
accountHandle.getId())) {
Log.i(this, "Emergency PhoneAccountHandle is being used for unknown call... " +
"Treat as an Emergency Call.");
isEmergency = true;
}
Phone phone = getPhoneForAccount(accountHandle, isEmergency,
/* Note: when not an emergency, handle can be null for unknown callers */
request.getAddress() == null ? null : request.getAddress().getSchemeSpecificPart());
if (phone == null) {
return Connection.createFailedConnection(
DisconnectCauseUtil.toTelecomDisconnectCause(
android.telephony.DisconnectCause.ERROR_UNSPECIFIED,
"Phone is null"));
}
Bundle extras = request.getExtras();
final List<com.android.internal.telephony.Connection> allConnections = new ArrayList<>();
// Handle the case where an unknown connection has an IMS external call ID specified; we can
// skip the rest of the guesswork and just grad that unknown call now.
if (phone.getImsPhone() != null && extras != null &&
extras.containsKey(ImsExternalCallTracker.EXTRA_IMS_EXTERNAL_CALL_ID)) {
ImsPhone imsPhone = (ImsPhone) phone.getImsPhone();
ImsExternalCallTracker externalCallTracker = imsPhone.getExternalCallTracker();
int externalCallId = extras.getInt(ImsExternalCallTracker.EXTRA_IMS_EXTERNAL_CALL_ID,
-1);
if (externalCallTracker != null) {
com.android.internal.telephony.Connection connection =
externalCallTracker.getConnectionById(externalCallId);
if (connection != null) {
allConnections.add(connection);
}
}
}
if (allConnections.isEmpty()) {
final Call ringingCall = phone.getRingingCall();
if (ringingCall.hasConnections()) {
allConnections.addAll(ringingCall.getConnections());
}
final Call foregroundCall = phone.getForegroundCall();
if ((foregroundCall.getState() != Call.State.DISCONNECTED)
&& (foregroundCall.hasConnections())) {
allConnections.addAll(foregroundCall.getConnections());
}
if (phone.getImsPhone() != null) {
final Call imsFgCall = phone.getImsPhone().getForegroundCall();
if ((imsFgCall.getState() != Call.State.DISCONNECTED) && imsFgCall
.hasConnections()) {
allConnections.addAll(imsFgCall.getConnections());
}
}
final Call backgroundCall = phone.getBackgroundCall();
if (backgroundCall.hasConnections()) {
allConnections.addAll(phone.getBackgroundCall().getConnections());
}
}
com.android.internal.telephony.Connection unknownConnection = null;
for (com.android.internal.telephony.Connection telephonyConnection : allConnections) {
if (!isOriginalConnectionKnown(telephonyConnection)) {
unknownConnection = telephonyConnection;
Log.d(this, "onCreateUnknownConnection: conn = " + unknownConnection);
break;
}
}
if (unknownConnection == null) {
Log.i(this, "onCreateUnknownConnection, did not find previously unknown connection.");
return Connection.createCanceledConnection();
}
// We should rely on the originalConnection to get the video state. The request coming
// from Telecom does not know the video state of the unknown call.
int videoState = unknownConnection != null ? unknownConnection.getVideoState() :
VideoProfile.STATE_AUDIO_ONLY;
TelephonyConnection connection =
createConnectionFor(phone, unknownConnection,
!unknownConnection.isIncoming() /* isOutgoing */,
request.getAccountHandle(), request.getTelecomCallId(),
request.getAddress(), videoState);
if (connection == null) {
return Connection.createCanceledConnection();
} else {
connection.updateState();
return connection;
}
}
/**
* Conferences two connections.
*
* Note: The {@link android.telecom.RemoteConnection#setConferenceableConnections(List)} API has
* a limitation in that it can only specify conferenceables which are instances of
* {@link android.telecom.RemoteConnection}. In the case of an {@link ImsConference}, the
* regular {@link Connection#setConferenceables(List)} API properly handles being able to merge
* a {@link Conference} and a {@link Connection}. As a result when, merging a
* {@link android.telecom.RemoteConnection} into a {@link android.telecom.RemoteConference}
* require merging a {@link ConferenceParticipantConnection} which is a child of the
* {@link Conference} with a {@link TelephonyConnection}. The
* {@link ConferenceParticipantConnection} class does not have the capability to initiate a
* conference merge, so we need to call
* {@link TelephonyConnection#performConference(Connection)} on either {@code connection1} or
* {@code connection2}, one of which is an instance of {@link TelephonyConnection}.
*
* @param connection1 A connection to merge into a conference call.
* @param connection2 A connection to merge into a conference call.
*/
@Override
public void onConference(Connection connection1, Connection connection2) {
if (connection1 instanceof TelephonyConnection) {
((TelephonyConnection) connection1).performConference(connection2);
} else if (connection2 instanceof TelephonyConnection) {
((TelephonyConnection) connection2).performConference(connection1);
} else {
Log.w(this, "onConference - cannot merge connections " +
"Connection1: %s, Connection2: %2", connection1, connection2);
}
}
@Override
public void onConnectionAdded(Connection connection) {
if (connection instanceof Holdable && !isExternalConnection(connection)) {
connection.addConnectionListener(mConnectionListener);
mHoldTracker.addHoldable(
connection.getPhoneAccountHandle(), (Holdable) connection);
}
}
@Override
public void onConnectionRemoved(Connection connection) {
if (connection instanceof Holdable && !isExternalConnection(connection)) {
mHoldTracker.removeHoldable(connection.getPhoneAccountHandle(), (Holdable) connection);
}
}
@Override
public void onConferenceAdded(Conference conference) {
if (conference instanceof Holdable) {
mHoldTracker.addHoldable(conference.getPhoneAccountHandle(), (Holdable) conference);
}
}
@Override
public void onConferenceRemoved(Conference conference) {
if (conference instanceof Holdable) {
mHoldTracker.removeHoldable(conference.getPhoneAccountHandle(), (Holdable) conference);
}
}
private boolean isExternalConnection(Connection connection) {
return (connection.getConnectionProperties() & Connection.PROPERTY_IS_EXTERNAL_CALL)
== Connection.PROPERTY_IS_EXTERNAL_CALL;
}
private boolean blockCallForwardingNumberWhileRoaming(Phone phone, String number) {
if (phone == null || TextUtils.isEmpty(number) || !phone.getServiceState().getRoaming()) {
return false;
}
String[] blockPrefixes = null;
CarrierConfigManager cfgManager = (CarrierConfigManager)
phone.getContext().getSystemService(Context.CARRIER_CONFIG_SERVICE);
if (cfgManager != null) {
blockPrefixes = cfgManager.getConfigForSubId(phone.getSubId()).getStringArray(
CarrierConfigManager.KEY_CALL_FORWARDING_BLOCKS_WHILE_ROAMING_STRING_ARRAY);
}
if (blockPrefixes != null) {
for (String prefix : blockPrefixes) {
if (number.startsWith(prefix)) {
return true;
}
}
}
return false;
}
private boolean isRadioOn() {
boolean result = false;
for (Phone phone : mPhoneFactoryProxy.getPhones()) {
result |= phone.isRadioOn();
}
return result;
}
private Pair<WeakReference<TelephonyConnection>, Queue<Phone>> makeCachedConnectionPhonePair(
TelephonyConnection c) {
Queue<Phone> phones = new LinkedList<>(Arrays.asList(mPhoneFactoryProxy.getPhones()));
return new Pair<>(new WeakReference<>(c), phones);
}
// Update the mEmergencyRetryCache by removing the Phone used to call the last failed emergency
// number and then moving it to the back of the queue if it is not a permanent failure cause
// from the modem.
private void updateCachedConnectionPhonePair(TelephonyConnection c,
boolean isPermanentFailure) {
// No cache exists, create a new one.
if (mEmergencyRetryCache == null) {
Log.i(this, "updateCachedConnectionPhonePair, cache is null. Generating new cache");
mEmergencyRetryCache = makeCachedConnectionPhonePair(c);
// Cache is stale, create a new one with the new TelephonyConnection.
} else if (mEmergencyRetryCache.first.get() != c) {
Log.i(this, "updateCachedConnectionPhonePair, cache is stale. Regenerating.");
mEmergencyRetryCache = makeCachedConnectionPhonePair(c);
}
Queue<Phone> cachedPhones = mEmergencyRetryCache.second;
// Need to refer default phone considering ImsPhone because
// cachedPhones is a list that contains default phones.
Phone phoneUsed = c.getPhone().getDefaultPhone();
if (phoneUsed == null) {
return;
}
// Remove phone used from the list, but for temporary fail cause, it will be added
// back to list further in this method. However in case of permanent failure, the
// phone shouldn't be reused, hence it will not be added back again.
cachedPhones.remove(phoneUsed);
Log.i(this, "updateCachedConnectionPhonePair, isPermanentFailure:" + isPermanentFailure);
if (!isPermanentFailure) {
// In case of temporary failure, add the phone back, this will result adding it
// to tail of list mEmergencyRetryCache.second, giving other phone more
// priority and that is what we want.
cachedPhones.offer(phoneUsed);
}
}
/**
* Updates a cache containing all of the slots that are available for redial at any point.
*
* - If a Connection returns with the disconnect cause EMERGENCY_TEMP_FAILURE, keep that phone
* in the cache, but move it to the lowest priority in the list. Then, place the emergency call
* on the next phone in the list.
* - If a Connection returns with the disconnect cause EMERGENCY_PERM_FAILURE, remove that phone
* from the cache and pull another phone from the cache to place the emergency call.
*
* This will continue until there are no more slots to dial on.
*/
@VisibleForTesting
public void retryOutgoingOriginalConnection(TelephonyConnection c, boolean isPermanentFailure) {
int phoneId = (c.getPhone() == null) ? -1 : c.getPhone().getPhoneId();
updateCachedConnectionPhonePair(c, isPermanentFailure);
// Pull next phone to use from the cache or null if it is empty
Phone newPhoneToUse = (mEmergencyRetryCache.second != null)
? mEmergencyRetryCache.second.peek() : null;
if (newPhoneToUse != null) {
int videoState = c.getVideoState();
Bundle connExtras = c.getExtras();
Log.i(this, "retryOutgoingOriginalConnection, redialing on Phone Id: " + newPhoneToUse);
c.clearOriginalConnection();
if (phoneId != newPhoneToUse.getPhoneId()) updatePhoneAccount(c, newPhoneToUse);
placeOutgoingConnection(c, newPhoneToUse, videoState, connExtras);
} else {
// We have run out of Phones to use. Disconnect the call and destroy the connection.
Log.i(this, "retryOutgoingOriginalConnection, no more Phones to use. Disconnecting.");
c.setDisconnected(new DisconnectCause(DisconnectCause.ERROR));
c.clearOriginalConnection();
c.destroy();
}
}
private void updatePhoneAccount(TelephonyConnection connection, Phone phone) {
PhoneAccountHandle pHandle = PhoneUtils.makePstnPhoneAccountHandle(phone);
// For ECall handling on MSIM, until the request reaches here (i.e PhoneApp), we don't know
// on which phone account ECall can be placed. After deciding, we should notify Telecom of
// the change so that the proper PhoneAccount can be displayed.
Log.i(this, "updatePhoneAccount setPhoneAccountHandle, account = " + pHandle);
connection.setPhoneAccountHandle(pHandle);
}
private void placeOutgoingConnection(
TelephonyConnection connection, Phone phone, ConnectionRequest request) {
placeOutgoingConnection(connection, phone, request.getVideoState(), request.getExtras());
}
private void placeOutgoingConnection(
TelephonyConnection connection, Phone phone, int videoState, Bundle extras) {
String number = connection.getAddress().getSchemeSpecificPart();
com.android.internal.telephony.Connection originalConnection = null;
try {
if (phone != null) {
originalConnection = phone.dial(number, new ImsPhone.ImsDialArgs.Builder()
.setVideoState(videoState)
.setIntentExtras(extras)
.setRttTextStream(connection.getRttTextStream())
.build());
}
} catch (CallStateException e) {
Log.e(this, e, "placeOutgoingConnection, phone.dial exception: " + e);
int cause = android.telephony.DisconnectCause.OUTGOING_FAILURE;
switch (e.getError()) {
case CallStateException.ERROR_OUT_OF_SERVICE:
cause = android.telephony.DisconnectCause.OUT_OF_SERVICE;
break;
case CallStateException.ERROR_POWER_OFF:
cause = android.telephony.DisconnectCause.POWER_OFF;
break;
case CallStateException.ERROR_ALREADY_DIALING:
cause = android.telephony.DisconnectCause.ALREADY_DIALING;
break;
case CallStateException.ERROR_CALL_RINGING:
cause = android.telephony.DisconnectCause.CANT_CALL_WHILE_RINGING;
break;
case CallStateException.ERROR_CALLING_DISABLED:
cause = android.telephony.DisconnectCause.CALLING_DISABLED;
break;
case CallStateException.ERROR_TOO_MANY_CALLS:
cause = android.telephony.DisconnectCause.TOO_MANY_ONGOING_CALLS;
break;
case CallStateException.ERROR_OTASP_PROVISIONING_IN_PROCESS:
cause = android.telephony.DisconnectCause.OTASP_PROVISIONING_IN_PROCESS;
break;
}
connection.setDisconnected(DisconnectCauseUtil.toTelecomDisconnectCause(
cause, e.getMessage(), phone.getPhoneId()));
connection.clearOriginalConnection();
connection.destroy();
return;
}
if (originalConnection == null) {
int telephonyDisconnectCause = android.telephony.DisconnectCause.OUTGOING_FAILURE;
// On GSM phones, null connection means that we dialed an MMI code
if (phone.getPhoneType() == PhoneConstants.PHONE_TYPE_GSM) {
Log.d(this, "dialed MMI code");
int subId = phone.getSubId();
Log.d(this, "subId: "+subId);
telephonyDisconnectCause = android.telephony.DisconnectCause.DIALED_MMI;
final Intent intent = new Intent(this, MMIDialogActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
if (SubscriptionManager.isValidSubscriptionId(subId)) {
intent.putExtra(PhoneConstants.SUBSCRIPTION_KEY, subId);
}
startActivity(intent);
}
Log.d(this, "placeOutgoingConnection, phone.dial returned null");
connection.setDisconnected(DisconnectCauseUtil.toTelecomDisconnectCause(
telephonyDisconnectCause, "Connection is null", phone.getPhoneId()));
connection.clearOriginalConnection();
connection.destroy();
} else {
connection.setOriginalConnection(originalConnection);
}
}
private TelephonyConnection createConnectionFor(
Phone phone,
com.android.internal.telephony.Connection originalConnection,
boolean isOutgoing,
PhoneAccountHandle phoneAccountHandle,
String telecomCallId,
Uri address,
int videoState) {
TelephonyConnection returnConnection = null;
int phoneType = phone.getPhoneType();
if (phoneType == TelephonyManager.PHONE_TYPE_GSM) {
returnConnection = new GsmConnection(originalConnection, telecomCallId, isOutgoing);
} else if (phoneType == TelephonyManager.PHONE_TYPE_CDMA) {
boolean allowsMute = allowsMute(phone);
returnConnection = new CdmaConnection(originalConnection, mEmergencyTonePlayer,
allowsMute, isOutgoing, telecomCallId);
}
if (returnConnection != null) {
// Listen to Telephony specific callbacks from the connection
returnConnection.addTelephonyConnectionListener(mTelephonyConnectionListener);
returnConnection.setVideoPauseSupported(
TelecomAccountRegistry.getInstance(this).isVideoPauseSupported(
phoneAccountHandle));
returnConnection.setManageImsConferenceCallSupported(
TelecomAccountRegistry.getInstance(this).isManageImsConferenceCallSupported(
phoneAccountHandle));
returnConnection.setShowPreciseFailedCause(
TelecomAccountRegistry.getInstance(this).isShowPreciseFailedCause(
phoneAccountHandle));
}
return returnConnection;
}
private boolean isOriginalConnectionKnown(
com.android.internal.telephony.Connection originalConnection) {
for (Connection connection : getAllConnections()) {
if (connection instanceof TelephonyConnection) {
TelephonyConnection telephonyConnection = (TelephonyConnection) connection;
if (telephonyConnection.getOriginalConnection() == originalConnection) {
return true;
}
}
}
return false;
}
/**
* Determines which {@link Phone} will be used to place the call.
* @param accountHandle The {@link PhoneAccountHandle} which was sent from Telecom to place the
* call on.
* @param isEmergency {@code true} if this is an emergency call, {@code false} otherwise.
* @param emergencyNumberAddress When {@code isEmergency} is {@code true}, will be the phone
* of the emergency call. Otherwise, this can be {@code null} .
* @return
*/
private Phone getPhoneForAccount(PhoneAccountHandle accountHandle, boolean isEmergency,
@Nullable String emergencyNumberAddress) {
Phone chosenPhone = null;
int subId = PhoneUtils.getSubIdForPhoneAccountHandle(accountHandle);
if (subId != SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
int phoneId = mSubscriptionManagerProxy.getPhoneId(subId);
chosenPhone = mPhoneFactoryProxy.getPhone(phoneId);
}
// If this is an emergency call and the phone we originally planned to make this call
// with is not in service or was invalid, try to find one that is in service, using the
// default as a last chance backup.
if (isEmergency && (chosenPhone == null || !isAvailableForEmergencyCalls(chosenPhone))) {
Log.d(this, "getPhoneForAccount: phone for phone acct handle %s is out of service "
+ "or invalid for emergency call.", accountHandle);
chosenPhone = getPhoneForEmergencyCall(emergencyNumberAddress);
Log.d(this, "getPhoneForAccount: using subId: " +
(chosenPhone == null ? "null" : chosenPhone.getSubId()));
}
return chosenPhone;
}
private CompletableFuture<Boolean> delayDialForDdsSwitch(Phone phone) {
if (phone == null) {
return CompletableFuture.completedFuture(Boolean.TRUE);
}
return possiblyOverrideDefaultDataForEmergencyCall(phone)
.completeOnTimeout(false, DEFAULT_DATA_SWITCH_TIMEOUT_MS,
TimeUnit.MILLISECONDS);
}
/**
* If needed, block until Default Data subscription is switched for outgoing emergency call.
*
* In some cases, we need to try to switch the Default Data subscription before placing the
* emergency call on DSDS devices. This includes the following situation:
* - The modem does not support processing GNSS SUPL requests on the non-default data
* subscription. For some carriers that do not provide a control plane fallback mechanism, the
* SUPL request will be dropped and we will not be able to get the user's location for the
* emergency call. In this case, we need to swap default data temporarily.
* @param phone Evaluates whether or not the default data should be moved to the phone
* specified. Should not be null.
*/
private CompletableFuture<Boolean> possiblyOverrideDefaultDataForEmergencyCall(
@NonNull Phone phone) {
TelephonyManager telephony = TelephonyManager.from(phone.getContext());
int phoneCount = telephony.getPhoneCount();
// Do not override DDS if this is a single SIM device.
if (phoneCount <= PhoneConstants.MAX_PHONE_COUNT_SINGLE_SIM) {
return CompletableFuture.completedFuture(Boolean.TRUE);
}
CarrierConfigManager cfgManager = (CarrierConfigManager)
phone.getContext().getSystemService(Context.CARRIER_CONFIG_SERVICE);
if (cfgManager == null) {
// For some reason CarrierConfigManager is unavailable. Do not block emergency call.
Log.w(this, "possiblyOverrideDefaultDataForEmergencyCall: couldn't get"
+ "CarrierConfigManager");
return CompletableFuture.completedFuture(Boolean.TRUE);
}
// Only override default data if we are IN_SERVICE and on a home network. We don't want to
// perform a DDS switch of we are on a roaming network, where SUPL may not be available.
boolean isPhoneAvailableForEmergency = isAvailableForEmergencyCalls(phone);
boolean isRoaming = phone.getServiceState().getVoiceRoaming();
if (!isPhoneAvailableForEmergency || isRoaming) {
Log.d(this, "possiblyOverrideDefaultDataForEmergencyCall: not switching DDS, avail = "
+ isPhoneAvailableForEmergency + ", roaming = " + isRoaming);
return CompletableFuture.completedFuture(Boolean.TRUE);
}
// Do not switch Default data if this device supports emergency SUPL on non-DDS.
final boolean gnssSuplRequiresDefaultData = phone.getContext().getResources().getBoolean(
R.bool.config_gnss_supl_requires_default_data_for_emergency);
if (!gnssSuplRequiresDefaultData) {
Log.d(this, "possiblyOverrideDefaultDataForEmergencyCall: not switching DDS, does not "
+ "require DDS switch.");
return CompletableFuture.completedFuture(Boolean.TRUE);
}
final boolean supportsCpFallback = cfgManager.getConfigForSubId(phone.getSubId())
.getInt(CarrierConfigManager.Gps.KEY_ES_SUPL_CONTROL_PLANE_SUPPORT_INT,
CarrierConfigManager.Gps.SUPL_EMERGENCY_MODE_TYPE_CP_ONLY)
!= CarrierConfigManager.Gps.SUPL_EMERGENCY_MODE_TYPE_DP_ONLY;
if (supportsCpFallback) {
Log.d(this, "possiblyOverrideDefaultDataForEmergencyCall: not switching DDS, carrier "
+ "supports CP fallback.");
// Do not try to swap default data if we support CS fallback, do not want to introduce
// a lag in emergency call setup time if possible.
return CompletableFuture.completedFuture(Boolean.TRUE);
}
// Get extension time, may be 0 for some carriers that support ECBM as well. Use
// CarrierConfig default if format fails.
int extensionTime = 0;
try {
extensionTime = Integer.valueOf(cfgManager.getConfigForSubId(phone.getSubId())
.getString(CarrierConfigManager.Gps.KEY_ES_EXTENSION_SEC_STRING, "0"));
} catch (NumberFormatException e) {
// Just use default.
}
CompletableFuture<Boolean> modemResultFuture = new CompletableFuture<>();
try {
Log.d(this, "possiblyOverrideDefaultDataForEmergencyCall: overriding DDS for "
+ extensionTime + "seconds");
PhoneSwitcher.getInstance().overrideDefaultDataForEmergency(phone.getPhoneId(),
extensionTime, modemResultFuture);
// Catch all exceptions, we want to continue with emergency call if possible.
} catch (Exception e) {
Log.w(this, "possiblyOverrideDefaultDataForEmergencyCall: exception = "
+ e.getMessage());
}
return modemResultFuture;
}
/**
* Get the Phone to use for an emergency call of the given emergency number address:
* a) If there are multiple Phones with the Subscriptions that support the emergency number
* address, and one of them is the default voice Phone, consider the default voice phone
* if 1.4 HAL is supported, or if it is available for emergency call.
* b) If there are multiple Phones with the Subscriptions that support the emergency number
* address, and none of them is the default voice Phone, use one of these Phones if 1.4 HAL
* is supported, or if it is available for emergency call.
* c) If there is no Phone that supports the emergency call for the address, use the defined
* Priority list to select the Phone via {@link #getFirstPhoneForEmergencyCall}.
*/
public Phone getPhoneForEmergencyCall(String emergencyNumberAddress) {
// Find the list of available Phones for the given emergency number address
List<Phone> potentialEmergencyPhones = new ArrayList<>();
int defaultVoicePhoneId = mSubscriptionManagerProxy.getDefaultVoicePhoneId();
for (Phone phone : mPhoneFactoryProxy.getPhones()) {
if (phone.getEmergencyNumberTracker() != null) {
if (phone.getEmergencyNumberTracker().isEmergencyNumber(
emergencyNumberAddress, true)) {
if (phone.getHalVersion().greaterOrEqual(RIL.RADIO_HAL_VERSION_1_4)
|| isAvailableForEmergencyCalls(phone)) {
// a)
if (phone.getPhoneId() == defaultVoicePhoneId) {
Log.i(this, "getPhoneForEmergencyCall, Phone Id that supports"
+ " emergency number: " + phone.getPhoneId());
return phone;
}
potentialEmergencyPhones.add(phone);
}
}
}
}
// b)
if (potentialEmergencyPhones.size() > 0) {
Log.i(this, "getPhoneForEmergencyCall, Phone Id that supports emergency number:"
+ potentialEmergencyPhones.get(0).getPhoneId());
return getFirstPhoneForEmergencyCall(potentialEmergencyPhones);
}
// c)
return getFirstPhoneForEmergencyCall();
}
@VisibleForTesting
public Phone getFirstPhoneForEmergencyCall() {
return getFirstPhoneForEmergencyCall(null);
}
/**
* Retrieves the most sensible Phone to use for an emergency call using the following Priority
* list (for multi-SIM devices):
* 1) The User's SIM preference for Voice calling
* 2) The First Phone that is currently IN_SERVICE or is available for emergency calling
* 3) Prioritize phones that have the dialed emergency number as part of their emergency
* number list
* 4) If there is a PUK locked SIM, compare the SIMs that are not PUK locked. If all the SIMs
* are locked, skip to condition 5).
* 5) The Phone with more Capabilities.
* 6) The First Phone that has a SIM card in it (Starting from Slot 0...N)
* 7) The Default Phone (Currently set as Slot 0)
*/
@VisibleForTesting
public Phone getFirstPhoneForEmergencyCall(List<Phone> phonesWithEmergencyNumber) {
// 1)
int phoneId = mSubscriptionManagerProxy.getDefaultVoicePhoneId();
if (phoneId != SubscriptionManager.INVALID_PHONE_INDEX) {
Phone defaultPhone = mPhoneFactoryProxy.getPhone(phoneId);
if (defaultPhone != null && isAvailableForEmergencyCalls(defaultPhone)) {
if (phonesWithEmergencyNumber == null
|| phonesWithEmergencyNumber.contains(defaultPhone)) {
return defaultPhone;
}
}
}
Phone firstPhoneWithSim = null;
int phoneCount = mTelephonyManagerProxy.getPhoneCount();
List<SlotStatus> phoneSlotStatus = new ArrayList<>(phoneCount);
for (int i = 0; i < phoneCount; i++) {
Phone phone = mPhoneFactoryProxy.getPhone(i);
if (phone == null) {
continue;
}
// 2)
if (isAvailableForEmergencyCalls(phone)) {
if (phonesWithEmergencyNumber == null
|| phonesWithEmergencyNumber.contains(phone)) {
// the slot has the radio on & state is in service.
Log.i(this,
"getFirstPhoneForEmergencyCall, radio on & in service, Phone Id:" + i);
return phone;
}
}
// 5)
// Store the RAF Capabilities for sorting later.
int radioAccessFamily = phone.getRadioAccessFamily();
SlotStatus status = new SlotStatus(i, radioAccessFamily);
phoneSlotStatus.add(status);
Log.i(this, "getFirstPhoneForEmergencyCall, RAF:" +
Integer.toHexString(radioAccessFamily) + " saved for Phone Id:" + i);
// 4)
// Report Slot's PIN/PUK lock status for sorting later.
int simState = mSubscriptionManagerProxy.getSimStateForSlotIdx(i);
if (simState == TelephonyManager.SIM_STATE_PIN_REQUIRED ||
simState == TelephonyManager.SIM_STATE_PUK_REQUIRED) {
status.isLocked = true;
}
// 3) Store if the Phone has the corresponding emergency number
if (phonesWithEmergencyNumber != null) {
for (Phone phoneWithEmergencyNumber : phonesWithEmergencyNumber) {
if (phoneWithEmergencyNumber != null
&& phoneWithEmergencyNumber.getPhoneId() == i) {
status.hasDialedEmergencyNumber = true;
}
}
}
// 6)
if (firstPhoneWithSim == null && mTelephonyManagerProxy.hasIccCard(i)) {
// The slot has a SIM card inserted, but is not in service, so keep track of this
// Phone. Do not return because we want to make sure that none of the other Phones
// are in service (because that is always faster).
firstPhoneWithSim = phone;
Log.i(this, "getFirstPhoneForEmergencyCall, SIM card inserted, Phone Id:" +
firstPhoneWithSim.getPhoneId());
}
}
// 7)
if (firstPhoneWithSim == null && phoneSlotStatus.isEmpty()) {
if (phonesWithEmergencyNumber == null || phonesWithEmergencyNumber.isEmpty()) {
// No Phones available, get the default
Log.i(this, "getFirstPhoneForEmergencyCall, return default phone");
return mPhoneFactoryProxy.getDefaultPhone();
}
return phonesWithEmergencyNumber.get(0);
} else {
// 5)
final int defaultPhoneId = mPhoneFactoryProxy.getDefaultPhone().getPhoneId();
final Phone firstOccupiedSlot = firstPhoneWithSim;
if (!phoneSlotStatus.isEmpty()) {
// Only sort if there are enough elements to do so.
if (phoneSlotStatus.size() > 1) {
Collections.sort(phoneSlotStatus, (o1, o2) -> {
if (!o1.hasDialedEmergencyNumber && o2.hasDialedEmergencyNumber) {
return -1;
}
if (o1.hasDialedEmergencyNumber && !o2.hasDialedEmergencyNumber) {
return 1;
}
// First start by seeing if either of the phone slots are locked. If they
// are, then sort by non-locked SIM first. If they are both locked, sort
// by capability instead.
if (o1.isLocked && !o2.isLocked) {
return -1;
}
if (o2.isLocked && !o1.isLocked) {
return 1;
}
// sort by number of RadioAccessFamily Capabilities.
int compare = Integer.bitCount(o1.capabilities) -
Integer.bitCount(o2.capabilities);
if (compare == 0) {
// Sort by highest RAF Capability if the number is the same.
compare = RadioAccessFamily.getHighestRafCapability(o1.capabilities) -
RadioAccessFamily.getHighestRafCapability(o2.capabilities);
if (compare == 0) {
if (firstOccupiedSlot != null) {
// If the RAF capability is the same, choose based on whether or
// not any of the slots are occupied with a SIM card (if both
// are, always choose the first).
if (o1.slotId == firstOccupiedSlot.getPhoneId()) {
return 1;
} else if (o2.slotId == firstOccupiedSlot.getPhoneId()) {
return -1;
}
} else {
// No slots have SIMs detected in them, so weight the default
// Phone Id greater than the others.
if (o1.slotId == defaultPhoneId) {
return 1;
} else if (o2.slotId == defaultPhoneId) {
return -1;
}
}
}
}
return compare;
});
}
int mostCapablePhoneId = phoneSlotStatus.get(phoneSlotStatus.size() - 1).slotId;
Log.i(this, "getFirstPhoneForEmergencyCall, Using Phone Id: " + mostCapablePhoneId +
"with highest capability");
return mPhoneFactoryProxy.getPhone(mostCapablePhoneId);
} else {
// 6)
return firstPhoneWithSim;
}
}
}
/**
* Returns true if the state of the Phone is IN_SERVICE or available for emergency calling only.
*/
private boolean isAvailableForEmergencyCalls(Phone phone) {
return ServiceState.STATE_IN_SERVICE == phone.getServiceState().getState() ||
phone.getServiceState().isEmergencyOnly();
}
/**
* Determines if the connection should allow mute.
*
* @param phone The current phone.
* @return {@code True} if the connection should allow mute.
*/
private boolean allowsMute(Phone phone) {
// For CDMA phones, check if we are in Emergency Callback Mode (ECM). Mute is disallowed
// in ECM mode.
if (phone.getPhoneType() == TelephonyManager.PHONE_TYPE_CDMA) {
if (phone.isInEcm()) {
return false;
}
}
return true;
}
@Override
public void removeConnection(Connection connection) {
super.removeConnection(connection);
if (connection instanceof TelephonyConnection) {
TelephonyConnection telephonyConnection = (TelephonyConnection) connection;
telephonyConnection.removeTelephonyConnectionListener(mTelephonyConnectionListener);
}
}
/**
* When a {@link TelephonyConnection} has its underlying original connection configured,
* we need to add it to the correct conference controller.
*
* @param connection The connection to be added to the controller
*/
public void addConnectionToConferenceController(TelephonyConnection connection) {
// TODO: Need to revisit what happens when the original connection for the
// TelephonyConnection changes. If going from CDMA --> GSM (for example), the
// instance of TelephonyConnection will still be a CdmaConnection, not a GsmConnection.
// The CDMA conference controller makes the assumption that it will only have CDMA
// connections in it, while the other conference controllers aren't as restrictive. Really,
// when we go between CDMA and GSM we should replace the TelephonyConnection.
if (connection.isImsConnection()) {
Log.d(this, "Adding IMS connection to conference controller: " + connection);
mImsConferenceController.add(connection);
mTelephonyConferenceController.remove(connection);
if (connection instanceof CdmaConnection) {
mCdmaConferenceController.remove((CdmaConnection) connection);
}
} else {
int phoneType = connection.getCall().getPhone().getPhoneType();
if (phoneType == TelephonyManager.PHONE_TYPE_GSM) {
Log.d(this, "Adding GSM connection to conference controller: " + connection);
mTelephonyConferenceController.add(connection);
if (connection instanceof CdmaConnection) {
mCdmaConferenceController.remove((CdmaConnection) connection);
}
} else if (phoneType == TelephonyManager.PHONE_TYPE_CDMA &&
connection instanceof CdmaConnection) {
Log.d(this, "Adding CDMA connection to conference controller: " + connection);
mCdmaConferenceController.add((CdmaConnection) connection);
mTelephonyConferenceController.remove(connection);
}
Log.d(this, "Removing connection from IMS conference controller: " + connection);
mImsConferenceController.remove(connection);
}
}
/**
* Create a new CDMA connection. CDMA connections have additional limitations when creating
* additional calls which are handled in this method. Specifically, CDMA has a "FLASH" command
* that can be used for three purposes: merging a call, swapping unmerged calls, and adding
* a new outgoing call. The function of the flash command depends on the context of the current
* set of calls. This method will prevent an outgoing call from being made if it is not within
* the right circumstances to support adding a call.
*/
private Connection checkAdditionalOutgoingCallLimits(Phone phone) {
if (phone.getPhoneType() == TelephonyManager.PHONE_TYPE_CDMA) {
// Check to see if any CDMA conference calls exist, and if they do, check them for
// limitations.
for (Conference conference : getAllConferences()) {
if (conference instanceof CdmaConference) {
CdmaConference cdmaConf = (CdmaConference) conference;
// If the CDMA conference has not been merged, add-call will not work, so fail
// this request to add a call.
if (cdmaConf.can(Connection.CAPABILITY_MERGE_CONFERENCE)) {
return Connection.createFailedConnection(new DisconnectCause(
DisconnectCause.RESTRICTED,
null,
getResources().getString(R.string.callFailed_cdma_call_limit),
"merge-capable call exists, prevent flash command."));
}
}
}
}
return null; // null means nothing went wrong, and call should continue.
}
private boolean isTtyModeEnabled(Context context) {
return (android.provider.Settings.Secure.getInt(
context.getContentResolver(),
android.provider.Settings.Secure.PREFERRED_TTY_MODE,
TelecomManager.TTY_MODE_OFF) != TelecomManager.TTY_MODE_OFF);
}
/**
* For outgoing dialed calls, potentially send a ConnectionEvent if the user is on WFC and is
* dialing an international number.
* @param telephonyConnection The connection.
*/
private void maybeSendInternationalCallEvent(TelephonyConnection telephonyConnection) {
if (telephonyConnection == null || telephonyConnection.getPhone() == null ||
telephonyConnection.getPhone().getDefaultPhone() == null) {
return;
}
Phone phone = telephonyConnection.getPhone().getDefaultPhone();
if (phone instanceof GsmCdmaPhone) {
GsmCdmaPhone gsmCdmaPhone = (GsmCdmaPhone) phone;
if (telephonyConnection.isOutgoingCall() &&
gsmCdmaPhone.isNotificationOfWfcCallRequired(
telephonyConnection.getOriginalConnection().getOrigDialString())) {
// Send connection event to InCall UI to inform the user of the fact they
// are potentially placing an international call on WFC.
Log.i(this, "placeOutgoingConnection - sending international call on WFC " +
"confirmation event");
telephonyConnection.sendConnectionEvent(
TelephonyManager.EVENT_NOTIFY_INTERNATIONAL_CALL_ON_WFC, null);
}
}
}
private void handleTtyModeChange(boolean isTtyEnabled) {
Log.i(this, "handleTtyModeChange; isTtyEnabled=%b", isTtyEnabled);
mIsTtyEnabled = isTtyEnabled;
for (Connection connection : getAllConnections()) {
if (connection instanceof TelephonyConnection) {
TelephonyConnection telephonyConnection = (TelephonyConnection) connection;
telephonyConnection.setTtyEnabled(isTtyEnabled);
}
}
}
}