369 lines
13 KiB
C#
369 lines
13 KiB
C#
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#if UNITY_WEBGL || WEBSOCKET || ((UNITY_XBOXONE || UNITY_GAMECORE) && UNITY_EDITOR)
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// --------------------------------------------------------------------------------------------------------------------
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// <copyright file="SocketWebTcp.cs" company="Exit Games GmbH">
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// Copyright (c) Exit Games GmbH. All rights reserved.
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// </copyright>
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// <summary>
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// Internal class to encapsulate the network i/o functionality for the realtime library.
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// </summary>
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// <author>developer@exitgames.com</author>
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// --------------------------------------------------------------------------------------------------------------------
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namespace ExitGames.Client.Photon
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{
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using System;
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using System.Collections;
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using UnityEngine;
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using SupportClassPun = ExitGames.Client.Photon.SupportClass;
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#if !(UNITY_WEBGL || NETFX_CORE)
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using System.Net;
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using System.Net.Sockets;
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using System.Threading;
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#endif
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/// <summary>
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/// Yield Instruction to Wait for real seconds. Very important to keep connection working if Time.TimeScale is altered, we still want accurate network events
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/// </summary>
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public sealed class WaitForRealSeconds : CustomYieldInstruction
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{
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private readonly float _endTime;
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public override bool keepWaiting
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{
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get { return this._endTime > Time.realtimeSinceStartup; }
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}
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public WaitForRealSeconds(float seconds)
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{
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this._endTime = Time.realtimeSinceStartup + seconds;
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}
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}
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/// <summary>
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/// Internal class to encapsulate the network i/o functionality for the realtime libary.
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/// </summary>
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public class SocketWebTcp : IPhotonSocket, IDisposable
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{
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private WebSocket sock;
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private readonly object syncer = new object();
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public SocketWebTcp(PeerBase npeer) : base(npeer)
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{
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this.ServerAddress = npeer.ServerAddress;
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if (this.ReportDebugOfLevel(DebugLevel.INFO))
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{
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this.Listener.DebugReturn(DebugLevel.INFO, "new SocketWebTcp() for Unity. Server: " + this.ServerAddress);
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}
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//this.Protocol = ConnectionProtocol.WebSocket;
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this.PollReceive = false;
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}
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public void Dispose()
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{
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this.State = PhotonSocketState.Disconnecting;
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if (this.sock != null)
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{
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try
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{
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if (this.sock.Connected) this.sock.Close();
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}
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catch (Exception ex)
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{
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this.EnqueueDebugReturn(DebugLevel.INFO, "Exception in Dispose(): " + ex);
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}
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}
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this.sock = null;
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this.State = PhotonSocketState.Disconnected;
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}
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GameObject websocketConnectionObject;
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public override bool Connect()
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{
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//bool baseOk = base.Connect();
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//if (!baseOk)
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//{
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// return false;
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//}
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this.State = PhotonSocketState.Connecting;
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if (this.websocketConnectionObject != null)
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{
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UnityEngine.Object.Destroy(this.websocketConnectionObject);
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}
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this.websocketConnectionObject = new GameObject("websocketConnectionObject");
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MonoBehaviour mb = this.websocketConnectionObject.AddComponent<MonoBehaviourExt>();
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this.websocketConnectionObject.hideFlags = HideFlags.HideInHierarchy;
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UnityEngine.Object.DontDestroyOnLoad(this.websocketConnectionObject);
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#if UNITY_WEBGL || NETFX_CORE
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this.sock = new WebSocket(new Uri(this.ConnectAddress), this.SerializationProtocol);
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this.sock.Connect();
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mb.StartCoroutine(this.ReceiveLoop());
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#else
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mb.StartCoroutine(this.DetectIpVersionAndConnect(mb));
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#endif
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return true;
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}
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#if !(UNITY_WEBGL || NETFX_CORE)
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private bool ipVersionDetectDone;
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private IEnumerator DetectIpVersionAndConnect(MonoBehaviour mb)
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{
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Uri uri = null;
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try
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{
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uri = new Uri(this.ConnectAddress);
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}
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catch (Exception ex)
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{
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if (this.ReportDebugOfLevel(DebugLevel.ERROR))
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{
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this.Listener.DebugReturn(DebugLevel.ERROR, "Failed to create a URI from ConnectAddress (" + ConnectAddress + "). Exception: " + ex);
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}
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}
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if (uri != null && uri.HostNameType == UriHostNameType.Dns)
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{
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ipVersionDetectDone = false;
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ThreadPool.QueueUserWorkItem(this.DetectIpVersion, uri.Host);
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while (!this.ipVersionDetectDone)
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{
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yield return new WaitForRealSeconds(0.1f);
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}
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}
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if (this.AddressResolvedAsIpv6)
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{
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this.ConnectAddress += "&IPv6";
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}
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if (this.ReportDebugOfLevel(DebugLevel.INFO))
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{
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this.Listener.DebugReturn(DebugLevel.INFO, "DetectIpVersionAndConnect() AddressResolvedAsIpv6: " + this.AddressResolvedAsIpv6 + " ConnectAddress: " + ConnectAddress);
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}
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this.sock = new WebSocket(new Uri(this.ConnectAddress), this.SerializationProtocol);
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this.sock.Connect();
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mb.StartCoroutine(this.ReceiveLoop());
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}
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// state has to be the hostname string
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private void DetectIpVersion(object state)
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{
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string host = state as string;
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IPAddress[] ipAddresses;
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try
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{
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ipAddresses = Dns.GetHostAddresses(host);
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foreach (IPAddress ipAddress in ipAddresses)
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{
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if (ipAddress.AddressFamily == AddressFamily.InterNetworkV6)
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{
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this.AddressResolvedAsIpv6 = true;
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break;
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}
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}
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}
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catch (Exception ex)
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{
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this.Listener.DebugReturn(DebugLevel.INFO, "DetectIpVersionAndConnect (uri: " + host + "= thread failed: " + ex);
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}
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this.ipVersionDetectDone = true;
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}
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#endif
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public override bool Disconnect()
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{
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if (this.ReportDebugOfLevel(DebugLevel.INFO))
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{
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this.Listener.DebugReturn(DebugLevel.INFO, "SocketWebTcp.Disconnect()");
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}
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this.State = PhotonSocketState.Disconnecting;
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lock (this.syncer)
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{
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if (this.sock != null)
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{
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try
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{
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this.sock.Close();
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}
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catch (Exception ex)
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{
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this.Listener.DebugReturn(DebugLevel.ERROR, "Exception in Disconnect(): " + ex);
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}
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this.sock = null;
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}
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}
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if (this.websocketConnectionObject != null)
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{
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UnityEngine.Object.Destroy(this.websocketConnectionObject);
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}
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this.State = PhotonSocketState.Disconnected;
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return true;
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}
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/// <summary>
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/// used by TPeer*
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/// </summary>
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public override PhotonSocketError Send(byte[] data, int length)
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{
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if (this.State != PhotonSocketState.Connected)
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{
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return PhotonSocketError.Skipped;
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}
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try
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{
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if (data.Length > length)
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{
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byte[] trimmedData = new byte[length];
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Buffer.BlockCopy(data, 0, trimmedData, 0, length);
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data = trimmedData;
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}
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if (this.ReportDebugOfLevel(DebugLevel.ALL))
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{
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this.Listener.DebugReturn(DebugLevel.ALL, "Sending: " + SupportClassPun.ByteArrayToString(data));
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}
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if (this.sock != null)
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{
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this.sock.Send(data);
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}
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}
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catch (Exception e)
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{
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this.Listener.DebugReturn(DebugLevel.ERROR, "Cannot send to: " + this.ServerAddress + ". " + e.Message);
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this.HandleException(StatusCode.Exception);
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return PhotonSocketError.Exception;
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}
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return PhotonSocketError.Success;
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}
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public override PhotonSocketError Receive(out byte[] data)
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{
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data = null;
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return PhotonSocketError.NoData;
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}
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internal const int ALL_HEADER_BYTES = 9;
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internal const int TCP_HEADER_BYTES = 7;
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internal const int MSG_HEADER_BYTES = 2;
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public IEnumerator ReceiveLoop()
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{
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//this.Listener.DebugReturn(DebugLevel.INFO, "ReceiveLoop()");
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if (this.sock != null)
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{
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while (this.sock != null && !this.sock.Connected && this.sock.Error == null)
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{
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yield return new WaitForRealSeconds(0.1f);
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}
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if (this.sock != null)
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{
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if (this.sock.Error != null)
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{
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this.Listener.DebugReturn(DebugLevel.ERROR, "Exiting receive thread. Server: " + this.ServerAddress + ":" + this.ServerPort + " Error: " + this.sock.Error);
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this.HandleException(StatusCode.ExceptionOnConnect);
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}
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else
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{
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// connected
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if (this.ReportDebugOfLevel(DebugLevel.ALL))
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{
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this.Listener.DebugReturn(DebugLevel.ALL, "Receiving by websocket. this.State: " + this.State);
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}
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this.State = PhotonSocketState.Connected;
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this.peerBase.OnConnect();
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while (this.State == PhotonSocketState.Connected)
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{
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if (this.sock != null)
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{
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if (this.sock.Error != null)
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{
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this.Listener.DebugReturn(DebugLevel.ERROR, "Exiting receive thread (inside loop). Server: " + this.ServerAddress + ":" + this.ServerPort + " Error: " + this.sock.Error);
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this.HandleException(StatusCode.ExceptionOnReceive);
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break;
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}
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else
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{
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byte[] inBuff = this.sock.Recv();
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if (inBuff == null || inBuff.Length == 0)
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{
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// nothing received. wait a bit, try again
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yield return new WaitForRealSeconds(0.02f);
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continue;
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}
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if (this.ReportDebugOfLevel(DebugLevel.ALL))
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{
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this.Listener.DebugReturn(DebugLevel.ALL, "TCP << " + inBuff.Length + " = " + SupportClassPun.ByteArrayToString(inBuff));
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}
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if (inBuff.Length > 0)
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{
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try
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{
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this.HandleReceivedDatagram(inBuff, inBuff.Length, false);
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}
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catch (Exception e)
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{
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if (this.State != PhotonSocketState.Disconnecting && this.State != PhotonSocketState.Disconnected)
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{
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if (this.ReportDebugOfLevel(DebugLevel.ERROR))
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{
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this.EnqueueDebugReturn(DebugLevel.ERROR, "Receive issue. State: " + this.State + ". Server: '" + this.ServerAddress + "' Exception: " + e);
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}
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this.HandleException(StatusCode.ExceptionOnReceive);
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}
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}
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}
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}
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}
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}
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}
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}
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}
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this.Disconnect();
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}
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private class MonoBehaviourExt : MonoBehaviour { }
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}
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}
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#endif
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