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/*
* Copyright (c) 2019-2020 Livio, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the
* distribution.
*
* Neither the name of the Livio Inc. nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
package com.smartdevicelink.managers.lifecycle;
import android.content.Context;
import androidx.annotation.RestrictTo;
import com.smartdevicelink.SdlConnection.SdlSession;
import com.smartdevicelink.exception.SdlException;
import com.smartdevicelink.exception.SdlExceptionCause;
import com.smartdevicelink.protocol.enums.SessionType;
import com.smartdevicelink.proxy.interfaces.ISdlServiceListener;
import com.smartdevicelink.proxy.rpc.enums.SdlDisconnectedReason;
import com.smartdevicelink.proxy.rpc.enums.SystemCapabilityType;
import com.smartdevicelink.security.SdlSecurityBase;
import com.smartdevicelink.streaming.video.VideoStreamingParameters;
import com.smartdevicelink.transport.BaseTransportConfig;
import com.smartdevicelink.transport.MultiplexTransportConfig;
import com.smartdevicelink.transport.TCPTransportConfig;
import com.smartdevicelink.transport.enums.TransportType;
import com.smartdevicelink.util.DebugTool;
import java.lang.ref.WeakReference;
/**
* The lifecycle manager creates a central point for all SDL session logic to converge. It should only be used by
* the library itself. Usage outside the library is not permitted and will not be protected for in the future.
*
*/
@RestrictTo(RestrictTo.Scope.LIBRARY)
public class LifecycleManager extends BaseLifecycleManager {
private ISdlServiceListener videoServiceListener;
private boolean videoServiceStartResponseReceived = false;
private boolean videoServiceStartResponse = false;
private WeakReference<Context> contextWeakReference;
public LifecycleManager(AppConfig appConfig, BaseTransportConfig config, LifecycleListener listener) {
super(appConfig, config, listener);
}
@Override
void initialize() {
super.initialize();
if (_transportConfig != null && _transportConfig.getTransportType().equals(TransportType.MULTIPLEX)) {
this.session = new SdlSession(sdlSessionListener, (MultiplexTransportConfig) _transportConfig);
} else if (_transportConfig != null && _transportConfig.getTransportType().equals(TransportType.TCP)) {
this.session = new SdlSession(sdlSessionListener, (TCPTransportConfig) _transportConfig);
} else {
DebugTool.logError(TAG,"Unable to create session for transport type");
}
}
@Override
void cycle(SdlDisconnectedReason disconnectedReason) {
clean();
initialize();
if (!SdlDisconnectedReason.LEGACY_BLUETOOTH_MODE_ENABLED.equals(disconnectedReason) && !SdlDisconnectedReason.PRIMARY_TRANSPORT_CYCLE_REQUEST.equals(disconnectedReason)) {
//We don't want to alert higher if we are just cycling for legacy bluetooth
onClose("Sdl Proxy Cycled", new SdlException("Sdl Proxy Cycled", SdlExceptionCause.SDL_PROXY_CYCLED), disconnectedReason);
}
if (session != null) {
try {
session.startSession();
} catch (SdlException e) {
e.printStackTrace();
}
}
}
@RestrictTo(RestrictTo.Scope.LIBRARY)
public void setContext(Context context) {
this.contextWeakReference = new WeakReference<>(context);
}
@Override
void setSdlSecurityStaticVars() {
super.setSdlSecurityStaticVars();
Context context = null;
if(this.contextWeakReference != null){
context = contextWeakReference.get();
}
SdlSecurityBase.setContext(context);
}
@Override
void onTransportDisconnected(String info, boolean availablePrimary, BaseTransportConfig transportConfig) {
super.onTransportDisconnected(info, availablePrimary, transportConfig);
if (availablePrimary) {
_transportConfig = transportConfig;
DebugTool.logInfo(TAG, "notifying RPC session ended, but potential primary transport available");
cycle(SdlDisconnectedReason.PRIMARY_TRANSPORT_CYCLE_REQUEST);
} else {
onClose(info, null, null);
}
}
/**
* This method will try to start the video service with the requested parameters.
* When it returns it will attempt to store the accepted parameters if available.
*
* @param isEncrypted if the service should be encrypted
* @param parameters the desired video streaming parameters
*/
@Override
void startVideoService(boolean isEncrypted, VideoStreamingParameters parameters) {
if (session == null) {
DebugTool.logWarning(TAG, "SdlSession is not created yet.");
return;
}
if (!session.getIsConnected()) {
DebugTool.logWarning(TAG, "Connection is not available.");
return;
}
session.setDesiredVideoParams(parameters);
tryStartVideoStream(isEncrypted, parameters);
}
/**
* Try to open a video service by using the video streaming parameters supplied.
* Only information from codecs, width and height are used during video format negotiation.
*
* @param isEncrypted Specify true if packets on this service have to be encrypted
* @param parameters VideoStreamingParameters that are desired. Does not guarantee this is what will be accepted.
*/
private void tryStartVideoStream(boolean isEncrypted, VideoStreamingParameters parameters) {
if (session == null) {
DebugTool.logWarning(TAG, "SdlSession is not created yet.");
return;
}
if (getProtocolVersion() != null && getProtocolVersion().getMajor() >= 5 && !systemCapabilityManager.isCapabilitySupported(SystemCapabilityType.VIDEO_STREAMING)) {
DebugTool.logWarning(TAG, "Module doesn't support video streaming.");
return;
}
if (parameters == null) {
DebugTool.logWarning(TAG, "Video parameters were not supplied.");
return;
}
if (!videoServiceStartResponseReceived || !videoServiceStartResponse //If we haven't started the service before
|| (videoServiceStartResponse && isEncrypted && !session.isServiceProtected(SessionType.NAV))) { //Or the service has been started but we'd like to start an encrypted one
session.setDesiredVideoParams(parameters);
videoServiceStartResponseReceived = false;
videoServiceStartResponse = false;
addVideoServiceListener();
session.startService(SessionType.NAV, isEncrypted);
}
}
private void addVideoServiceListener() {
// videos may be started and stopped. Only add this once
if (videoServiceListener == null) {
videoServiceListener = new ISdlServiceListener() {
@Override
public void onServiceStarted(SdlSession session, SessionType type, boolean isEncrypted) {
videoServiceStartResponseReceived = true;
videoServiceStartResponse = true;
}
@Override
public void onServiceEnded(SdlSession session, SessionType type) {
// reset nav flags so nav can start upon the next transport connection
videoServiceStartResponseReceived = false;
videoServiceStartResponse = false;
}
@Override
public void onServiceError(SdlSession session, SessionType type, String reason) {
// if there is an error reset the flags so that there is a chance to restart streaming
videoServiceStartResponseReceived = false;
videoServiceStartResponse = false;
}
};
session.addServiceListener(SessionType.NAV, videoServiceListener);
}
}
@Override
void startAudioService(boolean isEncrypted) {
if (session == null) {
DebugTool.logWarning(TAG, "SdlSession is not created yet.");
return;
}
if (!session.getIsConnected()) {
DebugTool.logWarning(TAG, "Connection is not available.");
return;
}
session.startService(SessionType.PCM, isEncrypted);
}
}
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