| /* |
| * 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.Context; |
| import android.graphics.drawable.Icon; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.telecom.Connection; |
| import android.telecom.Connection.VideoProvider; |
| import android.telecom.DisconnectCause; |
| import android.telecom.PhoneAccountHandle; |
| import android.telecom.StatusHints; |
| import android.telecom.TelecomManager; |
| import android.telecom.VideoProfile; |
| import android.telephony.PhoneNumberUtils; |
| import android.text.TextUtils; |
| import android.util.Pair; |
| |
| import com.android.ims.internal.ConferenceParticipant; |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.telephony.Call; |
| import com.android.internal.telephony.CallStateException; |
| import com.android.internal.telephony.Phone; |
| import com.android.internal.telephony.PhoneConstants; |
| import com.android.phone.PhoneUtils; |
| import com.android.phone.R; |
| import com.android.telephony.Rlog; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.stream.Collectors; |
| |
| /** |
| * Represents an IMS conference call. |
| * <p> |
| * An IMS conference call consists of a conference host connection and potentially a list of |
| * conference participants. The conference host connection represents the radio connection to the |
| * IMS conference server. Since it is not a connection to any one individual, it is not represented |
| * in Telecom/InCall as a call. The conference participant information is received via the host |
| * connection via a conference event package. Conference participant connections do not represent |
| * actual radio connections to the participants; they act as a virtual representation of the |
| * participant, keyed by a unique endpoint {@link android.net.Uri}. |
| * <p> |
| * The {@link ImsConference} listens for conference event package data received via the host |
| * connection and is responsible for managing the conference participant connections which represent |
| * the participants. |
| */ |
| public class ImsConference extends TelephonyConferenceBase implements Holdable { |
| |
| private static final String LOG_TAG = "ImsConference"; |
| |
| /** |
| * Abstracts out fetching a feature flag. Makes testing easier. |
| */ |
| public interface FeatureFlagProxy { |
| boolean isUsingSinglePartyCallEmulation(); |
| } |
| |
| /** |
| * Abstracts out carrier configuration items specific to the conference. |
| */ |
| public static class CarrierConfiguration { |
| /** |
| * Builds and instance of {@link CarrierConfiguration}. |
| */ |
| public static class Builder { |
| private boolean mIsMaximumConferenceSizeEnforced = false; |
| private int mMaximumConferenceSize = 5; |
| private boolean mShouldLocalDisconnectEmptyConference = false; |
| private boolean mIsHoldAllowed = false; |
| |
| /** |
| * Sets whether the maximum size of the conference is enforced. |
| * @param isMaximumConferenceSizeEnforced {@code true} if conference size enforced. |
| * @return builder instance. |
| */ |
| public Builder setIsMaximumConferenceSizeEnforced( |
| boolean isMaximumConferenceSizeEnforced) { |
| mIsMaximumConferenceSizeEnforced = isMaximumConferenceSizeEnforced; |
| return this; |
| } |
| |
| /** |
| * Sets the maximum size of an IMS conference. |
| * @param maximumConferenceSize Max conference size. |
| * @return builder instance. |
| */ |
| public Builder setMaximumConferenceSize(int maximumConferenceSize) { |
| mMaximumConferenceSize = maximumConferenceSize; |
| return this; |
| } |
| |
| /** |
| * Sets whether an empty conference should be locally disconnected. |
| * @param shouldLocalDisconnectEmptyConference {@code true} if conference should be |
| * locally disconnected if empty. |
| * @return builder instance. |
| */ |
| public Builder setShouldLocalDisconnectEmptyConference( |
| boolean shouldLocalDisconnectEmptyConference) { |
| mShouldLocalDisconnectEmptyConference = shouldLocalDisconnectEmptyConference; |
| return this; |
| } |
| |
| /** |
| * Sets whether holding the conference is allowed. |
| * @param isHoldAllowed {@code true} if holding is allowed. |
| * @return builder instance. |
| */ |
| public Builder setIsHoldAllowed(boolean isHoldAllowed) { |
| mIsHoldAllowed = isHoldAllowed; |
| return this; |
| } |
| |
| /** |
| * Build instance of {@link CarrierConfiguration}. |
| * @return carrier config instance. |
| */ |
| public ImsConference.CarrierConfiguration build() { |
| return new ImsConference.CarrierConfiguration(mIsMaximumConferenceSizeEnforced, |
| mMaximumConferenceSize, mShouldLocalDisconnectEmptyConference, |
| mIsHoldAllowed); |
| } |
| } |
| |
| private boolean mIsMaximumConferenceSizeEnforced; |
| |
| private int mMaximumConferenceSize; |
| |
| private boolean mShouldLocalDisconnectEmptyConference; |
| |
| private boolean mIsHoldAllowed; |
| |
| private CarrierConfiguration(boolean isMaximumConferenceSizeEnforced, |
| int maximumConferenceSize, boolean shouldLocalDisconnectEmptyConference, |
| boolean isHoldAllowed) { |
| mIsMaximumConferenceSizeEnforced = isMaximumConferenceSizeEnforced; |
| mMaximumConferenceSize = maximumConferenceSize; |
| mShouldLocalDisconnectEmptyConference = shouldLocalDisconnectEmptyConference; |
| mIsHoldAllowed = isHoldAllowed; |
| } |
| |
| /** |
| * Determines whether the {@link ImsConference} should enforce a size limit based on |
| * {@link #getMaximumConferenceSize()}. |
| * {@code true} if maximum size limit should be enforced, {@code false} otherwise. |
| */ |
| public boolean isMaximumConferenceSizeEnforced() { |
| return mIsMaximumConferenceSizeEnforced; |
| } |
| |
| /** |
| * Determines the maximum number of participants (not including the host) in a conference |
| * which is enforced when {@link #isMaximumConferenceSizeEnforced()} is {@code true}. |
| */ |
| public int getMaximumConferenceSize() { |
| return mMaximumConferenceSize; |
| } |
| |
| /** |
| * Determines whether this {@link ImsConference} should locally disconnect itself when the |
| * number of participants in the conference drops to zero. |
| * {@code true} if empty conference should be locally disconnected, {@code false} |
| * otherwise. |
| */ |
| public boolean shouldLocalDisconnectEmptyConference() { |
| return mShouldLocalDisconnectEmptyConference; |
| } |
| |
| /** |
| * Determines whether holding the conference is permitted or not. |
| * {@code true} if hold is permitted, {@code false} otherwise. |
| */ |
| public boolean isHoldAllowed() { |
| return mIsHoldAllowed; |
| } |
| } |
| |
| /** |
| * Listener used to respond to changes to the underlying radio connection for the conference |
| * host connection. Used to respond to SRVCC changes. |
| */ |
| private final TelephonyConnection.TelephonyConnectionListener mTelephonyConnectionListener = |
| new TelephonyConnection.TelephonyConnectionListener() { |
| |
| /** |
| * Updates the state of the conference based on the new state of the host. |
| * |
| * @param c The host connection. |
| * @param state The new state |
| */ |
| @Override |
| public void onStateChanged(android.telecom.Connection c, int state) { |
| setState(state); |
| } |
| |
| /** |
| * Disconnects the conference when its host connection disconnects. |
| * |
| * @param c The host connection. |
| * @param disconnectCause The host connection disconnect cause. |
| */ |
| @Override |
| public void onDisconnected(android.telecom.Connection c, |
| DisconnectCause disconnectCause) { |
| setDisconnected(disconnectCause); |
| } |
| |
| @Override |
| public void onVideoStateChanged(android.telecom.Connection c, int videoState) { |
| Log.d(this, "onVideoStateChanged video state %d", videoState); |
| setVideoState(c, videoState); |
| } |
| |
| @Override |
| public void onVideoProviderChanged(android.telecom.Connection c, |
| Connection.VideoProvider videoProvider) { |
| Log.d(this, "onVideoProviderChanged: Connection: %s, VideoProvider: %s", c, |
| videoProvider); |
| setVideoProvider(c, videoProvider); |
| } |
| |
| @Override |
| public void onConnectionCapabilitiesChanged(Connection c, |
| int connectionCapabilities) { |
| Log.d(this, "onConnectionCapabilitiesChanged: Connection: %s," |
| + " connectionCapabilities: %s", c, connectionCapabilities); |
| int capabilites = ImsConference.this.getConnectionCapabilities(); |
| boolean isVideoConferencingSupported = mConferenceHost == null ? false : |
| mConferenceHost.isCarrierVideoConferencingSupported(); |
| setConnectionCapabilities( |
| applyHostCapabilities(capabilites, connectionCapabilities, |
| isVideoConferencingSupported)); |
| } |
| |
| @Override |
| public void onConnectionPropertiesChanged(Connection c, int connectionProperties) { |
| Log.d(this, "onConnectionPropertiesChanged: Connection: %s," |
| + " connectionProperties: %s", c, connectionProperties); |
| updateConnectionProperties(connectionProperties); |
| } |
| |
| @Override |
| public void onStatusHintsChanged(Connection c, StatusHints statusHints) { |
| Log.v(this, "onStatusHintsChanged"); |
| updateStatusHints(); |
| } |
| |
| @Override |
| public void onExtrasChanged(Connection c, Bundle extras) { |
| Log.v(this, "onExtrasChanged: c=" + c + " Extras=" + Rlog.pii(LOG_TAG, extras)); |
| updateExtras(extras); |
| } |
| |
| @Override |
| public void onExtrasRemoved(Connection c, List<String> keys) { |
| Log.v(this, "onExtrasRemoved: c=" + c + " key=" + keys); |
| removeExtras(keys); |
| } |
| |
| @Override |
| public void onConnectionEvent(Connection c, String event, Bundle extras) { |
| if (Connection.EVENT_MERGE_START.equals(event)) { |
| // Do not pass a merge start event on the underlying host connection; only |
| // indicate a merge has started on the connections which are merged into a |
| // conference. |
| return; |
| } |
| |
| sendConferenceEvent(event, extras); |
| } |
| |
| @Override |
| public void onOriginalConnectionConfigured(TelephonyConnection c) { |
| if (c == mConferenceHost) { |
| handleOriginalConnectionChange(); |
| } |
| } |
| |
| /** |
| * Handles changes to conference participant data as reported by the conference host |
| * connection. |
| * |
| * @param c The connection. |
| * @param participants The participant information. |
| */ |
| @Override |
| public void onConferenceParticipantsChanged(android.telecom.Connection c, |
| List<ConferenceParticipant> participants) { |
| |
| if (c == null || participants == null) { |
| return; |
| } |
| Log.v(this, "onConferenceParticipantsChanged: %d participants", |
| participants.size()); |
| TelephonyConnection telephonyConnection = (TelephonyConnection) c; |
| handleConferenceParticipantsUpdate(telephonyConnection, participants); |
| } |
| |
| /** |
| * Handles request to play a ringback tone. |
| * |
| * @param c The connection. |
| * @param ringback Whether the ringback tone is to be played. |
| */ |
| @Override |
| public void onRingbackRequested(android.telecom.Connection c, boolean ringback) { |
| Log.d(this, "onRingbackRequested ringback %s", ringback ? "Y" : "N"); |
| setRingbackRequested(ringback); |
| } |
| }; |
| |
| /** |
| * The telephony connection service; used to add new participant connections to Telecom. |
| */ |
| private TelephonyConnectionServiceProxy mTelephonyConnectionService; |
| |
| /** |
| * The connection to the conference server which is hosting the conference. |
| */ |
| private TelephonyConnection mConferenceHost; |
| |
| /** |
| * The PhoneAccountHandle of the conference host. |
| */ |
| private PhoneAccountHandle mConferenceHostPhoneAccountHandle; |
| |
| /** |
| * The address of the conference host. |
| */ |
| private Uri[] mConferenceHostAddress; |
| |
| private TelecomAccountRegistry mTelecomAccountRegistry; |
| |
| /** |
| * The participant with which Adhoc Conference call is getting formed. |
| */ |
| private List<Uri> mParticipants; |
| |
| /** |
| * The known conference participant connections. The HashMap is keyed by a Pair containing |
| * the handle and endpoint Uris. |
| * Access to the hashmap is protected by the {@link #mUpdateSyncRoot}. |
| */ |
| private final HashMap<Pair<Uri, Uri>, ConferenceParticipantConnection> |
| mConferenceParticipantConnections = new HashMap<>(); |
| |
| /** |
| * Sychronization root used to ensure that updates to the |
| * {@link #mConferenceParticipantConnections} happen atomically are are not interleaved across |
| * threads. There are some instances where the network will send conference event package |
| * data closely spaced. If that happens, it is possible that the interleaving of the update |
| * will cause duplicate participant info to be added. |
| */ |
| private final Object mUpdateSyncRoot = new Object(); |
| |
| private boolean mIsHoldable; |
| private boolean mCouldManageConference; |
| private FeatureFlagProxy mFeatureFlagProxy; |
| private final CarrierConfiguration mCarrierConfig; |
| private boolean mIsUsingSimCallManager = false; |
| |
| /** |
| * Where {@link #isMultiparty()} is {@code false}, contains the |
| * {@link ConferenceParticipantConnection#getUserEntity()} and |
| * {@link ConferenceParticipantConnection#getEndpoint()} of the single participant which this |
| * conference pretends to be. |
| */ |
| private Pair<Uri, Uri> mLoneParticipantIdentity = null; |
| |
| /** |
| * The {@link ConferenceParticipantConnection#getUserEntity()} and |
| * {@link ConferenceParticipantConnection#getEndpoint()} of the conference host as they appear |
| * in the CEP. This is determined when we scan the first conference event package. |
| * It is possible that this will be {@code null} for carriers which do not include the host |
| * in the CEP. |
| */ |
| private Pair<Uri, Uri> mHostParticipantIdentity = null; |
| |
| public void updateConferenceParticipantsAfterCreation() { |
| if (mConferenceHost != null) { |
| Log.v(this, "updateConferenceStateAfterCreation :: process participant update"); |
| handleConferenceParticipantsUpdate(mConferenceHost, |
| mConferenceHost.getConferenceParticipants()); |
| } else { |
| Log.v(this, "updateConferenceStateAfterCreation :: null mConferenceHost"); |
| } |
| } |
| |
| /** |
| * Initializes a new {@link ImsConference}. |
| * @param telephonyConnectionService The connection service responsible for adding new |
| * conferene participants. |
| * @param conferenceHost The telephony connection hosting the conference. |
| * @param phoneAccountHandle The phone account handle associated with the conference. |
| * @param featureFlagProxy |
| */ |
| public ImsConference(TelecomAccountRegistry telecomAccountRegistry, |
| TelephonyConnectionServiceProxy telephonyConnectionService, |
| TelephonyConnection conferenceHost, PhoneAccountHandle phoneAccountHandle, |
| FeatureFlagProxy featureFlagProxy, CarrierConfiguration carrierConfig) { |
| |
| super(phoneAccountHandle); |
| |
| mTelecomAccountRegistry = telecomAccountRegistry; |
| mFeatureFlagProxy = featureFlagProxy; |
| mCarrierConfig = carrierConfig; |
| |
| // Specify the connection time of the conference to be the connection time of the original |
| // connection. |
| long connectTime = conferenceHost.getOriginalConnection().getConnectTime(); |
| long connectElapsedTime = conferenceHost.getOriginalConnection().getConnectTimeReal(); |
| setConnectionTime(connectTime); |
| setConnectionStartElapsedRealtimeMillis(connectElapsedTime); |
| // Set the connectTime in the connection as well. |
| conferenceHost.setConnectTimeMillis(connectTime); |
| conferenceHost.setConnectionStartElapsedRealtimeMillis(connectElapsedTime); |
| |
| mTelephonyConnectionService = telephonyConnectionService; |
| setConferenceHost(conferenceHost); |
| setVideoProvider(conferenceHost, conferenceHost.getVideoProvider()); |
| |
| int capabilities = Connection.CAPABILITY_MUTE | |
| Connection.CAPABILITY_CONFERENCE_HAS_NO_CHILDREN; |
| if (mCarrierConfig.isHoldAllowed()) { |
| capabilities |= Connection.CAPABILITY_SUPPORT_HOLD | Connection.CAPABILITY_HOLD; |
| mIsHoldable = true; |
| } |
| capabilities = applyHostCapabilities(capabilities, |
| mConferenceHost.getConnectionCapabilities(), |
| mConferenceHost.isCarrierVideoConferencingSupported()); |
| setConnectionCapabilities(capabilities); |
| } |
| |
| /** |
| * Transfers capabilities from the conference host to the conference itself. |
| * |
| * @param conferenceCapabilities The current conference capabilities. |
| * @param capabilities The new conference host capabilities. |
| * @param isVideoConferencingSupported Whether video conferencing is supported. |
| * @return The merged capabilities to be applied to the conference. |
| */ |
| private int applyHostCapabilities(int conferenceCapabilities, int capabilities, |
| boolean isVideoConferencingSupported) { |
| |
| conferenceCapabilities = changeBitmask(conferenceCapabilities, |
| Connection.CAPABILITY_SUPPORTS_VT_LOCAL_BIDIRECTIONAL, |
| (capabilities & Connection.CAPABILITY_SUPPORTS_VT_LOCAL_BIDIRECTIONAL) != 0); |
| |
| if (isVideoConferencingSupported) { |
| conferenceCapabilities = changeBitmask(conferenceCapabilities, |
| Connection.CAPABILITY_SUPPORTS_VT_REMOTE_BIDIRECTIONAL, |
| (capabilities & Connection.CAPABILITY_SUPPORTS_VT_REMOTE_BIDIRECTIONAL) != 0); |
| conferenceCapabilities = changeBitmask(conferenceCapabilities, |
| Connection.CAPABILITY_CAN_UPGRADE_TO_VIDEO, |
| (capabilities & Connection.CAPABILITY_CAN_UPGRADE_TO_VIDEO) != 0); |
| } else { |
| // If video conferencing is not supported, explicitly turn off the remote video |
| // capability and the ability to upgrade to video. |
| Log.v(this, "applyHostCapabilities : video conferencing not supported"); |
| conferenceCapabilities = changeBitmask(conferenceCapabilities, |
| Connection.CAPABILITY_SUPPORTS_VT_REMOTE_BIDIRECTIONAL, false); |
| conferenceCapabilities = changeBitmask(conferenceCapabilities, |
| Connection.CAPABILITY_CAN_UPGRADE_TO_VIDEO, false); |
| } |
| |
| conferenceCapabilities = changeBitmask(conferenceCapabilities, |
| Connection.CAPABILITY_CANNOT_DOWNGRADE_VIDEO_TO_AUDIO, |
| (capabilities & Connection.CAPABILITY_CANNOT_DOWNGRADE_VIDEO_TO_AUDIO) != 0); |
| |
| conferenceCapabilities = changeBitmask(conferenceCapabilities, |
| Connection.CAPABILITY_CAN_PAUSE_VIDEO, |
| mConferenceHost.getVideoPauseSupported() && isVideoCapable()); |
| |
| conferenceCapabilities = changeBitmask(conferenceCapabilities, |
| Connection.CAPABILITY_ADD_PARTICIPANT, |
| (capabilities & Connection.CAPABILITY_ADD_PARTICIPANT) != 0); |
| |
| return conferenceCapabilities; |
| } |
| |
| /** |
| * Transfers properties from the conference host to the conference itself. |
| * |
| * @param conferenceProperties The current conference properties. |
| * @param properties The new conference host properties. |
| * @return The merged properties to be applied to the conference. |
| */ |
| private int applyHostProperties(int conferenceProperties, int properties) { |
| conferenceProperties = changeBitmask(conferenceProperties, |
| Connection.PROPERTY_HIGH_DEF_AUDIO, |
| (properties & Connection.PROPERTY_HIGH_DEF_AUDIO) != 0); |
| |
| conferenceProperties = changeBitmask(conferenceProperties, |
| Connection.PROPERTY_WIFI, |
| (properties & Connection.PROPERTY_WIFI) != 0); |
| |
| conferenceProperties = changeBitmask(conferenceProperties, |
| Connection.PROPERTY_IS_EXTERNAL_CALL, |
| (properties & Connection.PROPERTY_IS_EXTERNAL_CALL) != 0); |
| |
| conferenceProperties = changeBitmask(conferenceProperties, |
| Connection.PROPERTY_REMOTELY_HOSTED, !isConferenceHost()); |
| |
| conferenceProperties = changeBitmask(conferenceProperties, |
| Connection.PROPERTY_IS_ADHOC_CONFERENCE, |
| (properties & Connection.PROPERTY_IS_ADHOC_CONFERENCE) != 0); |
| |
| return conferenceProperties; |
| } |
| |
| /** |
| * Not used by the IMS conference controller. |
| * |
| * @return {@code Null}. |
| */ |
| @Override |
| public android.telecom.Connection getPrimaryConnection() { |
| return null; |
| } |
| |
| /** |
| * Returns VideoProvider of the conference. This can be null. |
| * |
| * @hide |
| */ |
| @Override |
| public VideoProvider getVideoProvider() { |
| if (mConferenceHost != null) { |
| return mConferenceHost.getVideoProvider(); |
| } |
| return null; |
| } |
| |
| /** |
| * Returns video state of conference |
| * |
| * @hide |
| */ |
| @Override |
| public int getVideoState() { |
| if (mConferenceHost != null) { |
| return mConferenceHost.getVideoState(); |
| } |
| return VideoProfile.STATE_AUDIO_ONLY; |
| } |
| |
| public Connection getConferenceHost() { |
| return mConferenceHost; |
| } |
| |
| /** |
| * @return The address's to which this Connection is currently communicating. |
| */ |
| public final List<Uri> getParticipants() { |
| return mParticipants; |
| } |
| |
| /** |
| * Sets the value of the {@link #getParticipants()}. |
| * |
| * @param address The new address's. |
| */ |
| public final void setParticipants(List<Uri> address) { |
| mParticipants = address; |
| } |
| |
| /** |
| * Invoked when the Conference and all its {@link Connection}s should be disconnected. |
| * <p> |
| * Hangs up the call via the conference host connection. When the host connection has been |
| * successfully disconnected, the {@link #mTelephonyConnectionListener} listener receives an |
| * {@code onDestroyed} event, which triggers the conference participant connections to be |
| * disconnected. |
| */ |
| @Override |
| public void onDisconnect() { |
| Log.v(this, "onDisconnect: hanging up conference host."); |
| if (mConferenceHost == null) { |
| return; |
| } |
| |
| disconnectConferenceParticipants(); |
| |
| Call call = mConferenceHost.getCall(); |
| if (call != null) { |
| try { |
| call.hangup(); |
| } catch (CallStateException e) { |
| Log.e(this, e, "Exception thrown trying to hangup conference"); |
| } |
| } else { |
| Log.w(this, "onDisconnect - null call"); |
| } |
| } |
| |
| /** |
| * Invoked when the specified {@link android.telecom.Connection} should be separated from the |
| * conference call. |
| * <p> |
| * IMS does not support separating connections from the conference. |
| * |
| * @param connection The connection to separate. |
| */ |
| @Override |
| public void onSeparate(android.telecom.Connection connection) { |
| Log.wtf(this, "Cannot separate connections from an IMS conference."); |
| } |
| |
| /** |
| * Invoked when the specified {@link android.telecom.Connection} should be merged into the |
| * conference call. |
| * |
| * @param connection The {@code Connection} to merge. |
| */ |
| @Override |
| public void onMerge(android.telecom.Connection connection) { |
| try { |
| Phone phone = mConferenceHost.getPhone(); |
| if (phone != null) { |
| phone.conference(); |
| } |
| } catch (CallStateException e) { |
| Log.e(this, e, "Exception thrown trying to merge call into a conference"); |
| } |
| } |
| |
| /** |
| * Supports adding participants to an existing conference call |
| * |
| * @param participants that are pulled to existing conference call |
| */ |
| @Override |
| public void onAddConferenceParticipants(List<Uri> participants) { |
| if (mConferenceHost == null) { |
| return; |
| } |
| mConferenceHost.performAddConferenceParticipants(participants); |
| } |
| |
| /** |
| * Invoked when the conference is answered. |
| */ |
| @Override |
| public void onAnswer(int videoState) { |
| if (mConferenceHost == null) { |
| return; |
| } |
| mConferenceHost.performAnswer(videoState); |
| } |
| |
| /** |
| * Invoked when the conference is rejected. |
| */ |
| @Override |
| public void onReject() { |
| if (mConferenceHost == null) { |
| return; |
| } |
| mConferenceHost.performReject(android.telecom.Call.REJECT_REASON_DECLINED); |
| } |
| |
| /** |
| * Invoked when the conference should be put on hold. |
| */ |
| @Override |
| public void onHold() { |
| if (mConferenceHost == null) { |
| return; |
| } |
| mConferenceHost.performHold(); |
| } |
| |
| /** |
| * Invoked when the conference should be moved from hold to active. |
| */ |
| @Override |
| public void onUnhold() { |
| if (mConferenceHost == null) { |
| return; |
| } |
| mConferenceHost.performUnhold(); |
| } |
| |
| /** |
| * Invoked to play a DTMF tone. |
| * |
| * @param c A DTMF character. |
| */ |
| @Override |
| public void onPlayDtmfTone(char c) { |
| if (mConferenceHost == null) { |
| return; |
| } |
| mConferenceHost.onPlayDtmfTone(c); |
| } |
| |
| /** |
| * Invoked to stop playing a DTMF tone. |
| */ |
| @Override |
| public void onStopDtmfTone() { |
| if (mConferenceHost == null) { |
| return; |
| } |
| mConferenceHost.onStopDtmfTone(); |
| } |
| |
| /** |
| * Handles the addition of connections to the {@link ImsConference}. The |
| * {@link ImsConferenceController} does not add connections to the conference. |
| * |
| * @param connection The newly added connection. |
| */ |
| @Override |
| public void onConnectionAdded(android.telecom.Connection connection) { |
| // No-op |
| Log.d(this, "connection added: " + connection |
| + ", time: " + connection.getConnectTimeMillis()); |
| } |
| |
| @Override |
| public void setHoldable(boolean isHoldable) { |
| mIsHoldable = isHoldable; |
| if (!mIsHoldable) { |
| removeCapability(Connection.CAPABILITY_HOLD); |
| } else { |
| addCapability(Connection.CAPABILITY_HOLD); |
| } |
| } |
| |
| @Override |
| public boolean isChildHoldable() { |
| // The conference should not be a child of other conference. |
| return false; |
| } |
| |
| /** |
| * Changes a bit-mask to add or remove a bit-field. |
| * |
| * @param bitmask The bit-mask. |
| * @param bitfield The bit-field to change. |
| * @param enabled Whether the bit-field should be set or removed. |
| * @return The bit-mask with the bit-field changed. |
| */ |
| private int changeBitmask(int bitmask, int bitfield, boolean enabled) { |
| if (enabled) { |
| return bitmask | bitfield; |
| } else { |
| return bitmask & ~bitfield; |
| } |
| } |
| |
| /** |
| * Determines if this conference is hosted on the current device or the peer device. |
| * |
| * @return {@code true} if this conference is hosted on the current device, {@code false} if it |
| * is hosted on the peer device. |
| */ |
| public boolean isConferenceHost() { |
| if (mConferenceHost == null) { |
| return false; |
| } |
| com.android.internal.telephony.Connection originalConnection = |
| mConferenceHost.getOriginalConnection(); |
| |
| return originalConnection != null && originalConnection.isMultiparty() && |
| originalConnection.isConferenceHost(); |
| } |
| |
| /** |
| * Updates the manage conference capability of the conference. |
| * |
| * The following cases are handled: |
| * <ul> |
| * <li>There is only a single participant in the conference -- manage conference is |
| * disabled.</li> |
| * <li>There is more than one participant in the conference -- manage conference is |
| * enabled.</li> |
| * <li>No conference event package data is available -- manage conference is disabled.</li> |
| * </ul> |
| * <p> |
| * Note: We add and remove {@link Connection#CAPABILITY_CONFERENCE_HAS_NO_CHILDREN} to ensure |
| * that the conference is represented appropriately on Bluetooth devices. |
| */ |
| private void updateManageConference() { |
| boolean couldManageConference = |
| (getConnectionCapabilities() & Connection.CAPABILITY_MANAGE_CONFERENCE) != 0; |
| boolean canManageConference = mFeatureFlagProxy.isUsingSinglePartyCallEmulation() |
| && !isMultiparty() |
| ? mConferenceParticipantConnections.size() > 1 |
| : mConferenceParticipantConnections.size() != 0; |
| Log.v(this, "updateManageConference was :%s is:%s", couldManageConference ? "Y" : "N", |
| canManageConference ? "Y" : "N"); |
| |
| if (couldManageConference != canManageConference) { |
| int capabilities = getConnectionCapabilities(); |
| |
| if (canManageConference) { |
| capabilities |= Connection.CAPABILITY_MANAGE_CONFERENCE; |
| capabilities &= ~Connection.CAPABILITY_CONFERENCE_HAS_NO_CHILDREN; |
| } else { |
| capabilities &= ~Connection.CAPABILITY_MANAGE_CONFERENCE; |
| capabilities |= Connection.CAPABILITY_CONFERENCE_HAS_NO_CHILDREN; |
| } |
| |
| setConnectionCapabilities(capabilities); |
| } |
| } |
| |
| /** |
| * Sets the connection hosting the conference and registers for callbacks. |
| * |
| * @param conferenceHost The connection hosting the conference. |
| */ |
| private void setConferenceHost(TelephonyConnection conferenceHost) { |
| Log.i(this, "setConferenceHost " + conferenceHost); |
| |
| mConferenceHost = conferenceHost; |
| |
| // Attempt to get the conference host's address (e.g. the host's own phone number). |
| // We need to look at the default phone for the ImsPhone when creating the phone account |
| // for the |
| if (mConferenceHost.getPhone() != null && |
| mConferenceHost.getPhone().getPhoneType() == PhoneConstants.PHONE_TYPE_IMS) { |
| // Look up the conference host's address; we need this later for filtering out the |
| // conference host in conference event package data. |
| Phone imsPhone = mConferenceHost.getPhone(); |
| mConferenceHostPhoneAccountHandle = |
| PhoneUtils.makePstnPhoneAccountHandle(imsPhone.getDefaultPhone()); |
| Uri hostAddress = mTelecomAccountRegistry.getAddress(mConferenceHostPhoneAccountHandle); |
| |
| ArrayList<Uri> hostAddresses = new ArrayList<>(); |
| |
| // add address from TelecomAccountRegistry |
| if (hostAddress != null) { |
| hostAddresses.add(hostAddress); |
| } |
| |
| // add addresses from phone |
| if (imsPhone.getCurrentSubscriberUris() != null) { |
| hostAddresses.addAll( |
| new ArrayList<>(Arrays.asList(imsPhone.getCurrentSubscriberUris()))); |
| } |
| |
| mConferenceHostAddress = new Uri[hostAddresses.size()]; |
| mConferenceHostAddress = hostAddresses.toArray(mConferenceHostAddress); |
| Log.i(this, "setConferenceHost: temp log hosts are " |
| + Arrays.stream(mConferenceHostAddress) |
| .map(Uri::toString) |
| .collect(Collectors.joining(", "))); |
| |
| Log.i(this, "setConferenceHost: hosts are " |
| + Arrays.stream(mConferenceHostAddress) |
| .map(Uri::getSchemeSpecificPart) |
| .map(ssp -> Rlog.pii(LOG_TAG, ssp)) |
| .collect(Collectors.joining(", "))); |
| |
| Log.i(this, "setConferenceHost: hosts are " |
| + Arrays.stream(mConferenceHostAddress) |
| .map(Uri::getSchemeSpecificPart) |
| .map(ssp -> Rlog.pii(LOG_TAG, ssp)) |
| .collect(Collectors.joining(", "))); |
| |
| mIsUsingSimCallManager = mTelecomAccountRegistry.isUsingSimCallManager( |
| mConferenceHostPhoneAccountHandle); |
| } |
| |
| // If the conference is not hosted on this device copy over the address and presentation and |
| // connect times so that we can log this appropriately in the call log. |
| if (!isConferenceHost()) { |
| setAddress(mConferenceHost.getAddress(), mConferenceHost.getAddressPresentation()); |
| setCallerDisplayName(mConferenceHost.getCallerDisplayName(), |
| mConferenceHost.getCallerDisplayNamePresentation()); |
| setConnectionStartElapsedRealtimeMillis( |
| mConferenceHost.getConnectionStartElapsedRealtimeMillis()); |
| setConnectionTime(mConferenceHost.getConnectTimeMillis()); |
| } |
| |
| mConferenceHost.addTelephonyConnectionListener(mTelephonyConnectionListener); |
| setConnectionCapabilities(applyHostCapabilities(getConnectionCapabilities(), |
| mConferenceHost.getConnectionCapabilities(), |
| mConferenceHost.isCarrierVideoConferencingSupported())); |
| setConnectionProperties(applyHostProperties(getConnectionProperties(), |
| mConferenceHost.getConnectionProperties())); |
| |
| setState(mConferenceHost.getState()); |
| updateStatusHints(); |
| putExtras(mConferenceHost.getExtras()); |
| } |
| |
| /** |
| * Handles state changes for conference participant(s). The participants data passed in |
| * |
| * @param parent The connection which was notified of the conference participant. |
| * @param participants The conference participant information. |
| */ |
| @VisibleForTesting |
| public void handleConferenceParticipantsUpdate( |
| TelephonyConnection parent, List<ConferenceParticipant> participants) { |
| |
| if (participants == null) { |
| return; |
| } |
| |
| if (parent != null && !parent.isManageImsConferenceCallSupported()) { |
| Log.i(this, "handleConferenceParticipantsUpdate: manage conference is disallowed"); |
| return; |
| } |
| |
| Log.i(this, "handleConferenceParticipantsUpdate: size=%d", participants.size()); |
| |
| // Perform the update in a synchronized manner. It is possible for the IMS framework to |
| // trigger two onConferenceParticipantsChanged callbacks in quick succession. If the first |
| // update adds new participants, and the second does something like update the status of one |
| // of the participants, we can get into a situation where the participant is added twice. |
| synchronized (mUpdateSyncRoot) { |
| int oldParticipantCount = mConferenceParticipantConnections.size(); |
| boolean newParticipantsAdded = false; |
| boolean oldParticipantsRemoved = false; |
| ArrayList<ConferenceParticipant> newParticipants = new ArrayList<>(participants.size()); |
| HashSet<Pair<Uri,Uri>> participantUserEntities = new HashSet<>(participants.size()); |
| |
| // Determine if the conference event package represents a single party conference. |
| // A single party conference is one where there is no other participant other than the |
| // conference host and one other participant. |
| // We purposely exclude participants which have a disconnected state in the conference |
| // event package; some carriers are known to keep a disconnected participant around in |
| // subsequent CEP updates with a state of disconnected, even though its no longer part |
| // of the conference. |
| // Note: We consider 0 to still be a single party conference since some carriers will |
| // send a conference event package with JUST the host in it when the conference is |
| // disconnected. We don't want to change back to conference mode prior to disconnection |
| // or we will not log the call. |
| boolean isSinglePartyConference = participants.stream() |
| .filter(p -> { |
| Pair<Uri, Uri> pIdent = new Pair<>(p.getHandle(), p.getEndpoint()); |
| return !Objects.equals(mHostParticipantIdentity, pIdent) |
| && p.getState() != Connection.STATE_DISCONNECTED; |
| }) |
| .count() <= 1; |
| |
| // We will only process the CEP data if: |
| // 1. We're not emulating a single party call. |
| // 2. We're emulating a single party call and the CEP contains more than just the |
| // single party |
| if ((!isMultiparty() && !isSinglePartyConference) |
| || isMultiparty()) { |
| // Add any new participants and update existing. |
| for (ConferenceParticipant participant : participants) { |
| Pair<Uri, Uri> userEntity = new Pair<>(participant.getHandle(), |
| participant.getEndpoint()); |
| |
| // We will exclude disconnected participants from the hash set of tracked |
| // participants. Some carriers are known to leave disconnected participants in |
| // the conference event package data which would cause them to be present in the |
| // conference even though they're disconnected. Removing them from the hash set |
| // here means we'll clean them up below. |
| if (participant.getState() != Connection.STATE_DISCONNECTED) { |
| participantUserEntities.add(userEntity); |
| } |
| if (!mConferenceParticipantConnections.containsKey(userEntity)) { |
| // Some carriers will also include the conference host in the CEP. We will |
| // filter that out here. |
| if (!isParticipantHost(mConferenceHostAddress, participant.getHandle())) { |
| createConferenceParticipantConnection(parent, participant); |
| newParticipants.add(participant); |
| newParticipantsAdded = true; |
| } else { |
| // Track the identity of the conference host; its useful to know when |
| // we look at the CEP in the future. |
| mHostParticipantIdentity = userEntity; |
| } |
| } else { |
| ConferenceParticipantConnection connection = |
| mConferenceParticipantConnections.get(userEntity); |
| Log.i(this, |
| "handleConferenceParticipantsUpdate: updateState, participant = %s", |
| participant); |
| connection.updateState(participant.getState()); |
| if (participant.getState() == Connection.STATE_DISCONNECTED) { |
| /** |
| * Per {@link ConferenceParticipantConnection#updateState(int)}, we will |
| * destroy the connection when its disconnected. |
| */ |
| handleConnectionDestruction(connection); |
| } |
| connection.setVideoState(parent.getVideoState()); |
| } |
| } |
| |
| // Set state of new participants. |
| if (newParticipantsAdded) { |
| // Set the state of the new participants at once and add to the conference |
| for (ConferenceParticipant newParticipant : newParticipants) { |
| ConferenceParticipantConnection connection = |
| mConferenceParticipantConnections.get(new Pair<>( |
| newParticipant.getHandle(), |
| newParticipant.getEndpoint())); |
| connection.updateState(newParticipant.getState()); |
| /** |
| * Per {@link ConferenceParticipantConnection#updateState(int)}, we will |
| * destroy the connection when its disconnected. |
| */ |
| if (newParticipant.getState() == Connection.STATE_DISCONNECTED) { |
| handleConnectionDestruction(connection); |
| } |
| connection.setVideoState(parent.getVideoState()); |
| } |
| } |
| |
| // Finally, remove any participants from the conference that no longer exist in the |
| // conference event package data. |
| Iterator<Map.Entry<Pair<Uri, Uri>, ConferenceParticipantConnection>> entryIterator = |
| mConferenceParticipantConnections.entrySet().iterator(); |
| while (entryIterator.hasNext()) { |
| Map.Entry<Pair<Uri, Uri>, ConferenceParticipantConnection> entry = |
| entryIterator.next(); |
| |
| if (!participantUserEntities.contains(entry.getKey())) { |
| ConferenceParticipantConnection participant = entry.getValue(); |
| participant.setDisconnected(new DisconnectCause(DisconnectCause.CANCELED)); |
| removeTelephonyConnection(participant); |
| participant.destroy(); |
| entryIterator.remove(); |
| oldParticipantsRemoved = true; |
| } |
| } |
| } |
| |
| int newParticipantCount = mConferenceParticipantConnections.size(); |
| Log.v(this, "handleConferenceParticipantsUpdate: oldParticipantCount=%d, " |
| + "newParticipantcount=%d", oldParticipantCount, newParticipantCount); |
| // If the single party call emulation fature flag is enabled, we can potentially treat |
| // the conference as a single party call when there is just one participant. |
| if (mFeatureFlagProxy.isUsingSinglePartyCallEmulation() && |
| !mConferenceHost.isAdhocConferenceCall()) { |
| if (oldParticipantCount != 1 && newParticipantCount == 1) { |
| // If number of participants goes to 1, emulate a single party call. |
| startEmulatingSinglePartyCall(); |
| } else if (!isMultiparty() && !isSinglePartyConference) { |
| // Number of participants increased, so stop emulating a single party call. |
| stopEmulatingSinglePartyCall(); |
| } |
| } |
| |
| // If new participants were added or old ones were removed, we need to ensure the state |
| // of the manage conference capability is updated. |
| if (newParticipantsAdded || oldParticipantsRemoved) { |
| updateManageConference(); |
| } |
| |
| // If the conference is empty and we're supposed to do a local disconnect, do so now. |
| if (mCarrierConfig.shouldLocalDisconnectEmptyConference() |
| && oldParticipantCount > 0 && newParticipantCount == 0) { |
| Log.i(this, "handleConferenceParticipantsUpdate: empty conference; " |
| + "local disconnect."); |
| onDisconnect(); |
| } |
| } |
| } |
| |
| /** |
| * Called after {@link #startEmulatingSinglePartyCall()} to cause the conference to appear as |
| * if it is a conference again. |
| * 1. Tell telecom we're a conference again. |
| * 2. Restore {@link Connection#CAPABILITY_MANAGE_CONFERENCE} capability. |
| * 3. Null out the name/address. |
| * |
| * Note: Single party call emulation is disabled if the conference is taking place via a |
| * sim call manager. Emulating a single party call requires properties of the conference to be |
| * changed (connect time, address, conference state) which cannot be guaranteed to be relayed |
| * correctly by the sim call manager to Telecom. |
| */ |
| private void stopEmulatingSinglePartyCall() { |
| if (mIsUsingSimCallManager) { |
| Log.i(this, "stopEmulatingSinglePartyCall: using sim call manager; skip."); |
| return; |
| } |
| |
| Log.i(this, "stopEmulatingSinglePartyCall: conference now has more than one" |
| + " participant; make it look conference-like again."); |
| |
| if (mCouldManageConference) { |
| int currentCapabilities = getConnectionCapabilities(); |
| currentCapabilities |= Connection.CAPABILITY_MANAGE_CONFERENCE; |
| setConnectionCapabilities(currentCapabilities); |
| } |
| |
| // Null out the address/name so it doesn't look like a single party call |
| setAddress(null, TelecomManager.PRESENTATION_UNKNOWN); |
| setCallerDisplayName(null, TelecomManager.PRESENTATION_UNKNOWN); |
| |
| // Copy the conference connect time back to the previous lone participant. |
| ConferenceParticipantConnection loneParticipant = |
| mConferenceParticipantConnections.get(mLoneParticipantIdentity); |
| if (loneParticipant != null) { |
| Log.d(this, |
| "stopEmulatingSinglePartyCall: restored lone participant connect time"); |
| loneParticipant.setConnectTimeMillis(getConnectionTime()); |
| loneParticipant.setConnectionStartElapsedRealtimeMillis( |
| getConnectionStartElapsedRealtimeMillis()); |
| } |
| |
| // Tell Telecom its a conference again. |
| setConferenceState(true); |
| } |
| |
| /** |
| * Called when a conference drops to a single participant. Causes this conference to present |
| * itself to Telecom as if it was a single party call. |
| * 1. Remove the participant from Telecom and from local tracking; when we get a new CEP in |
| * the future we'll just re-add the participant anyways. |
| * 2. Tell telecom we're not a conference. |
| * 3. Remove {@link Connection#CAPABILITY_MANAGE_CONFERENCE} capability. |
| * 4. Set the name/address to that of the single participant. |
| * |
| * Note: Single party call emulation is disabled if the conference is taking place via a |
| * sim call manager. Emulating a single party call requires properties of the conference to be |
| * changed (connect time, address, conference state) which cannot be guaranteed to be relayed |
| * correctly by the sim call manager to Telecom. |
| */ |
| private void startEmulatingSinglePartyCall() { |
| if (mIsUsingSimCallManager) { |
| Log.i(this, "startEmulatingSinglePartyCall: using sim call manager; skip."); |
| return; |
| } |
| |
| Log.i(this, "startEmulatingSinglePartyCall: conference has a single " |
| + "participant; downgrade to single party call."); |
| |
| Iterator<ConferenceParticipantConnection> valueIterator = |
| mConferenceParticipantConnections.values().iterator(); |
| if (valueIterator.hasNext()) { |
| ConferenceParticipantConnection entry = valueIterator.next(); |
| |
| // Set the conference name/number to that of the remaining participant. |
| setAddress(entry.getAddress(), entry.getAddressPresentation()); |
| setCallerDisplayName(entry.getCallerDisplayName(), |
| entry.getCallerDisplayNamePresentation()); |
| setConnectionStartElapsedRealtimeMillis( |
| entry.getConnectionStartElapsedRealtimeMillis()); |
| setConnectionTime(entry.getConnectTimeMillis()); |
| setCallDirection(entry.getCallDirection()); |
| mLoneParticipantIdentity = new Pair<>(entry.getUserEntity(), entry.getEndpoint()); |
| |
| // Remove the participant from Telecom. It'll get picked up in a future CEP update |
| // again anyways. |
| entry.setDisconnected(new DisconnectCause(DisconnectCause.CANCELED, |
| DisconnectCause.REASON_EMULATING_SINGLE_CALL)); |
| removeTelephonyConnection(entry); |
| entry.destroy(); |
| valueIterator.remove(); |
| } |
| |
| // Have Telecom pretend its not a conference. |
| setConferenceState(false); |
| |
| // Remove manage conference capability. |
| mCouldManageConference = |
| (getConnectionCapabilities() & Connection.CAPABILITY_MANAGE_CONFERENCE) != 0; |
| int currentCapabilities = getConnectionCapabilities(); |
| currentCapabilities &= ~Connection.CAPABILITY_MANAGE_CONFERENCE; |
| setConnectionCapabilities(currentCapabilities); |
| } |
| |
| /** |
| * Creates a new {@link ConferenceParticipantConnection} to represent a |
| * {@link ConferenceParticipant}. |
| * <p> |
| * The new connection is added to the conference controller and connection service. |
| * |
| * @param parent The connection which was notified of the participant change (e.g. the |
| * parent connection). |
| * @param participant The conference participant information. |
| */ |
| private void createConferenceParticipantConnection( |
| TelephonyConnection parent, ConferenceParticipant participant) { |
| |
| // Create and add the new connection in holding state so that it does not become the |
| // active call. |
| ConferenceParticipantConnection connection = new ConferenceParticipantConnection( |
| parent.getOriginalConnection(), participant, |
| !isConferenceHost() /* isRemotelyHosted */); |
| if (participant.getConnectTime() == 0) { |
| connection.setConnectTimeMillis(parent.getConnectTimeMillis()); |
| connection.setConnectionStartElapsedRealtimeMillis( |
| parent.getConnectionStartElapsedRealtimeMillis()); |
| } else { |
| connection.setConnectTimeMillis(participant.getConnectTime()); |
| connection.setConnectionStartElapsedRealtimeMillis(participant.getConnectElapsedTime()); |
| } |
| // Indicate whether this is an MT or MO call to Telecom; the participant has the cached |
| // data from the time of merge. |
| connection.setCallDirection(participant.getCallDirection()); |
| |
| // Ensure important attributes of the parent get copied to child. |
| connection.setConnectionProperties(applyHostPropertiesToChild( |
| connection.getConnectionProperties(), parent.getConnectionProperties())); |
| connection.setStatusHints(parent.getStatusHints()); |
| connection.setExtras(getChildExtrasFromHostBundle(parent.getExtras())); |
| |
| Log.i(this, "createConferenceParticipantConnection: participant=%s, connection=%s", |
| participant, connection); |
| |
| synchronized(mUpdateSyncRoot) { |
| mConferenceParticipantConnections.put(new Pair<>(participant.getHandle(), |
| participant.getEndpoint()), connection); |
| } |
| |
| mTelephonyConnectionService.addExistingConnection(mConferenceHostPhoneAccountHandle, |
| connection, this); |
| addTelephonyConnection(connection); |
| } |
| |
| /** |
| * Removes a conference participant from the conference. |
| * |
| * @param participant The participant to remove. |
| */ |
| private void removeConferenceParticipant(ConferenceParticipantConnection participant) { |
| Log.i(this, "removeConferenceParticipant: %s", participant); |
| |
| synchronized(mUpdateSyncRoot) { |
| mConferenceParticipantConnections.remove(new Pair<>(participant.getUserEntity(), |
| participant.getEndpoint())); |
| } |
| participant.destroy(); |
| } |
| |
| /** |
| * Disconnects all conference participants from the conference. |
| */ |
| private void disconnectConferenceParticipants() { |
| Log.v(this, "disconnectConferenceParticipants"); |
| |
| synchronized(mUpdateSyncRoot) { |
| for (ConferenceParticipantConnection connection : |
| mConferenceParticipantConnections.values()) { |
| |
| // Mark disconnect cause as cancelled to ensure that the call is not logged in the |
| // call log. |
| connection.setDisconnected(new DisconnectCause(DisconnectCause.CANCELED)); |
| connection.destroy(); |
| } |
| mConferenceParticipantConnections.clear(); |
| updateManageConference(); |
| } |
| } |
| |
| /** |
| * Extracts a phone number from a {@link Uri}. |
| * <p> |
| * Phone numbers can be represented either as a TEL URI or a SIP URI. |
| * For conference event packages, RFC3261 specifies how participants can be identified using a |
| * SIP URI. |
| * A valid SIP uri has the format: sip:user:password@host:port;uri-parameters?headers |
| * Per RFC3261, the "user" can be a telephone number. |
| * For example: sip:1650555121;phone-context=blah.com@host.com |
| * In this case, the phone number is in the user field of the URI, and the parameters can be |
| * ignored. |
| * |
| * A SIP URI can also specify a phone number in a format similar to: |
| * sip:+1-212-555-1212@something.com;user=phone |
| * In this case, the phone number is again in user field and the parameters can be ignored. |
| * We can get the user field in these instances by splitting the string on the @, ;, or : |
| * and looking at the first found item. |
| * @param handle The URI containing a SIP or TEL formatted phone number. |
| * @return extracted phone number. |
| */ |
| private static @NonNull String extractPhoneNumber(@NonNull Uri handle) { |
| // Number is always in the scheme specific part, regardless of whether this is a TEL or SIP |
| // URI. |
| String number = handle.getSchemeSpecificPart(); |
| // Get anything before the @ for the SIP case. |
| String[] numberParts = number.split("[@;:]"); |
| |
| if (numberParts.length == 0) { |
| Log.v(LOG_TAG, "extractPhoneNumber(N) : no number in handle"); |
| return ""; |
| } |
| return numberParts[0]; |
| } |
| |
| /** |
| * Determines if the passed in participant handle is the same as the conference host's handle. |
| * Starts with a simple equality check. However, the handles from a conference event package |
| * will be a SIP uri, so we need to pull that apart to look for the participant's phone number. |
| * |
| * @param hostHandles The handle(s) of the connection hosting the conference, typically obtained |
| * from P-Associated-Uri entries. |
| * @param handle The handle of the conference participant. |
| * @return {@code true} if the host's handle matches the participant's handle, {@code false} |
| * otherwise. |
| */ |
| @VisibleForTesting |
| public static boolean isParticipantHost(Uri[] hostHandles, Uri handle) { |
| // If there is no host handle or no participant handle, bail early. |
| if (hostHandles == null || hostHandles.length == 0 || handle == null) { |
| Log.v(LOG_TAG, "isParticipantHost(N) : host or participant uri null"); |
| return false; |
| } |
| |
| String number = extractPhoneNumber(handle); |
| // If we couldn't extract the participant's number, then we can't determine if it is the |
| // host or not. |
| if (TextUtils.isEmpty(number)) { |
| return false; |
| } |
| |
| for (Uri hostHandle : hostHandles) { |
| if (hostHandle == null) { |
| continue; |
| } |
| // Similar to the CEP participant data, the host identity in the P-Associated-Uri could |
| // be a SIP URI or a TEL URI. |
| String hostNumber = extractPhoneNumber(hostHandle); |
| |
| // Use a loose comparison of the phone numbers. This ensures that numbers that differ |
| // by special characters are counted as equal. |
| // E.g. +16505551212 would be the same as 16505551212 |
| boolean isHost = PhoneNumberUtils.compare(hostNumber, number); |
| |
| Log.v(LOG_TAG, "isParticipantHost(%s) : host: %s, participant %s", (isHost ? "Y" : "N"), |
| Rlog.pii(LOG_TAG, hostNumber), Rlog.pii(LOG_TAG, number)); |
| |
| if (isHost) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Handles a change in the original connection backing the conference host connection. This can |
| * happen if an SRVCC event occurs on the original IMS connection, requiring a fallback to |
| * GSM or CDMA. |
| * <p> |
| * If this happens, we will add the conference host connection to telecom and tear down the |
| * conference. |
| */ |
| private void handleOriginalConnectionChange() { |
| if (mConferenceHost == null) { |
| Log.w(this, "handleOriginalConnectionChange; conference host missing."); |
| return; |
| } |
| |
| com.android.internal.telephony.Connection originalConnection = |
| mConferenceHost.getOriginalConnection(); |
| |
| if (originalConnection != null && |
| originalConnection.getPhoneType() != PhoneConstants.PHONE_TYPE_IMS) { |
| Log.i(this, |
| "handleOriginalConnectionChange : handover from IMS connection to " + |
| "new connection: %s", originalConnection); |
| |
| PhoneAccountHandle phoneAccountHandle = null; |
| if (mConferenceHost.getPhone() != null) { |
| if (mConferenceHost.getPhone().getPhoneType() == PhoneConstants.PHONE_TYPE_IMS) { |
| Phone imsPhone = mConferenceHost.getPhone(); |
| // The phone account handle for an ImsPhone is based on the default phone (ie |
| // the base GSM or CDMA phone, not on the ImsPhone itself). |
| phoneAccountHandle = |
| PhoneUtils.makePstnPhoneAccountHandle(imsPhone.getDefaultPhone()); |
| } else { |
| // In the case of SRVCC, we still need a phone account, so use the top level |
| // phone to create a phone account. |
| phoneAccountHandle = PhoneUtils.makePstnPhoneAccountHandle( |
| mConferenceHost.getPhone()); |
| } |
| } |
| |
| if (mConferenceHost.getPhone().getPhoneType() == PhoneConstants.PHONE_TYPE_GSM) { |
| GsmConnection c = new GsmConnection(originalConnection, getTelecomCallId(), |
| mConferenceHost.getCallDirection()); |
| Log.i(this, "handleOriginalConnectionChange : SRVCC to GSM." |
| + " Created new GsmConnection with objId=" + System.identityHashCode(c) |
| + " and originalConnection objId=" |
| + System.identityHashCode(originalConnection)); |
| // This is a newly created conference connection as a result of SRVCC |
| c.setConferenceSupported(true); |
| c.setTelephonyConnectionProperties( |
| c.getConnectionProperties() | Connection.PROPERTY_IS_DOWNGRADED_CONFERENCE); |
| c.updateState(); |
| // Copy the connect time from the conferenceHost |
| c.setConnectTimeMillis(mConferenceHost.getConnectTimeMillis()); |
| c.setConnectionStartElapsedRealtimeMillis( |
| mConferenceHost.getConnectionStartElapsedRealtimeMillis()); |
| mTelephonyConnectionService.addExistingConnection(phoneAccountHandle, c); |
| mTelephonyConnectionService.addConnectionToConferenceController(c); |
| } // CDMA case not applicable for SRVCC |
| mConferenceHost.removeTelephonyConnectionListener(mTelephonyConnectionListener); |
| mConferenceHost = null; |
| setDisconnected(new DisconnectCause(DisconnectCause.OTHER)); |
| disconnectConferenceParticipants(); |
| destroyTelephonyConference(); |
| } |
| |
| updateStatusHints(); |
| } |
| |
| /** |
| * Changes the state of the Ims conference. |
| * |
| * @param state the new state. |
| */ |
| public void setState(int state) { |
| Log.v(this, "setState %s", Connection.stateToString(state)); |
| |
| switch (state) { |
| case Connection.STATE_INITIALIZING: |
| case Connection.STATE_NEW: |
| // No-op -- not applicable. |
| break; |
| case Connection.STATE_RINGING: |
| setConferenceOnRinging(); |
| break; |
| case Connection.STATE_DIALING: |
| setConferenceOnDialing(); |
| break; |
| case Connection.STATE_DISCONNECTED: |
| DisconnectCause disconnectCause; |
| if (mConferenceHost == null) { |
| disconnectCause = new DisconnectCause(DisconnectCause.CANCELED); |
| } else { |
| if (mConferenceHost.getPhone() != null) { |
| disconnectCause = DisconnectCauseUtil.toTelecomDisconnectCause( |
| mConferenceHost.getOriginalConnection().getDisconnectCause(), |
| null, mConferenceHost.getPhone().getPhoneId()); |
| } else { |
| disconnectCause = DisconnectCauseUtil.toTelecomDisconnectCause( |
| mConferenceHost.getOriginalConnection().getDisconnectCause()); |
| } |
| } |
| setDisconnected(disconnectCause); |
| disconnectConferenceParticipants(); |
| destroyTelephonyConference(); |
| break; |
| case Connection.STATE_ACTIVE: |
| setConferenceOnActive(); |
| break; |
| case Connection.STATE_HOLDING: |
| setConferenceOnHold(); |
| break; |
| } |
| } |
| |
| /** |
| * Determines if the host of this conference is capable of video calling. |
| * @return {@code true} if video capable, {@code false} otherwise. |
| */ |
| private boolean isVideoCapable() { |
| int capabilities = mConferenceHost.getConnectionCapabilities(); |
| return (capabilities & Connection.CAPABILITY_SUPPORTS_VT_LOCAL_BIDIRECTIONAL) != 0 |
| && (capabilities & Connection.CAPABILITY_SUPPORTS_VT_REMOTE_BIDIRECTIONAL) != 0; |
| } |
| |
| private void updateStatusHints() { |
| if (mConferenceHost == null) { |
| setStatusHints(null); |
| return; |
| } |
| |
| if (mConferenceHost.isWifi()) { |
| Phone phone = mConferenceHost.getPhone(); |
| if (phone != null) { |
| Context context = phone.getContext(); |
| StatusHints hints = new StatusHints( |
| context.getString(R.string.status_hint_label_wifi_call), |
| Icon.createWithResource( |
| context, R.drawable.ic_signal_wifi_4_bar_24dp), |
| null /* extras */); |
| setStatusHints(hints); |
| |
| // Ensure the children know they're a WIFI call as well. |
| for (Connection c : getConnections()) { |
| c.setStatusHints(hints); |
| } |
| } |
| } else { |
| setStatusHints(null); |
| } |
| } |
| |
| /** |
| * Updates the conference's properties based on changes to the host. |
| * Also ensures pertinent properties from the host such as the WIFI property are copied to the |
| * children as well. |
| * @param connectionProperties The new host properties. |
| */ |
| private void updateConnectionProperties(int connectionProperties) { |
| int properties = ImsConference.this.getConnectionProperties(); |
| setConnectionProperties(applyHostProperties(properties, connectionProperties)); |
| |
| for (Connection c : getConnections()) { |
| c.setConnectionProperties(applyHostPropertiesToChild(c.getConnectionProperties(), |
| connectionProperties)); |
| } |
| } |
| |
| /** |
| * Updates extras in the conference based on changes made in the parent. |
| * Also copies select extras (e.g. EXTRA_CALL_NETWORK_TYPE) to the children as well. |
| * @param extras The extras to copy. |
| */ |
| private void updateExtras(Bundle extras) { |
| putExtras(extras); |
| |
| if (extras == null) { |
| return; |
| } |
| |
| Bundle childBundle = getChildExtrasFromHostBundle(extras); |
| for (Connection c : getConnections()) { |
| c.putExtras(childBundle); |
| } |
| } |
| |
| /** |
| * Given an extras bundle from the host, returns a new bundle containing those extras which are |
| * releveant to the children. |
| * @param extras The host extras. |
| * @return The extras pertinent to the children. |
| */ |
| private Bundle getChildExtrasFromHostBundle(Bundle extras) { |
| Bundle extrasToCopy = new Bundle(); |
| if (extras != null && extras.containsKey(TelecomManager.EXTRA_CALL_NETWORK_TYPE)) { |
| int networkType = extras.getInt(TelecomManager.EXTRA_CALL_NETWORK_TYPE); |
| extrasToCopy.putInt(TelecomManager.EXTRA_CALL_NETWORK_TYPE, networkType); |
| } |
| return extrasToCopy; |
| } |
| |
| /** |
| * Given the properties from a conference host applies and changes to the host's properties to |
| * the child as well. |
| * @param childProperties The existing child properties. |
| * @param hostProperties The properties from the host. |
| * @return The child properties with the applicable host bits set/unset. |
| */ |
| private int applyHostPropertiesToChild(int childProperties, int hostProperties) { |
| childProperties = changeBitmask(childProperties, |
| Connection.PROPERTY_WIFI, |
| (hostProperties & Connection.PROPERTY_WIFI) != 0); |
| return childProperties; |
| } |
| |
| /** |
| * Builds a string representation of the {@link ImsConference}. |
| * |
| * @return String representing the conference. |
| */ |
| public String toString() { |
| StringBuilder sb = new StringBuilder(); |
| sb.append("[ImsConference objId:"); |
| sb.append(System.identityHashCode(this)); |
| sb.append(" telecomCallID:"); |
| sb.append(getTelecomCallId()); |
| sb.append(" state:"); |
| sb.append(Connection.stateToString(getState())); |
| sb.append(" hostConnection:"); |
| sb.append(mConferenceHost); |
| sb.append(" participants:"); |
| sb.append(mConferenceParticipantConnections.size()); |
| sb.append("]"); |
| return sb.toString(); |
| } |
| |
| /** |
| * @return The number of participants in the conference. |
| */ |
| public int getNumberOfParticipants() { |
| return mConferenceParticipantConnections.size(); |
| } |
| |
| /** |
| * @return {@code True} if the carrier enforces a maximum conference size, and the number of |
| * participants in the conference has reached the limit, {@code false} otherwise. |
| */ |
| public boolean isFullConference() { |
| return mCarrierConfig.isMaximumConferenceSizeEnforced() |
| && getNumberOfParticipants() >= mCarrierConfig.getMaximumConferenceSize(); |
| } |
| |
| /** |
| * Handles destruction of a {@link ConferenceParticipantConnection}. |
| * We remove the participant from the list of tracked participants in the conference and |
| * update whether the conference can be managed. |
| * @param participant the conference participant. |
| */ |
| private void handleConnectionDestruction(ConferenceParticipantConnection participant) { |
| removeConferenceParticipant(participant); |
| updateManageConference(); |
| } |
| } |
