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435 lines
17 KiB
C#
435 lines
17 KiB
C#
#if UNITY_WEBGL || WEBSOCKET || WEBSOCKET_PROXYCONFIG
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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 UnityEngine.Scripting;
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using SupportClassPun = SupportClass;
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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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[Preserve]
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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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this.ProxyServerAddress = npeer.ProxyServerAddress;
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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 + (String.IsNullOrEmpty(this.ProxyServerAddress) ? "" : ", Proxy: " + this.ProxyServerAddress));
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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)
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{
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this.sock.Close();
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}
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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 SocketWebTcp.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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this.ConnectAddress += "&IPv6"; // this makes the Photon Server return a host name for the next server (NS points to MS and MS points to GS)
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// earlier, we read the proxy address/scheme and failed to connect entirely, if that wasn't successful...
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// it was either successful (using the resulting proxy address) or no connect at all...
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// we want:
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// WITH support: fail if the scheme is wrong or use it if possible
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// WITHOUT support: use proxy address, if it's a direct value (not a scheme we provide) or fail if it's a scheme
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string proxyServerAddress;
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if (!this.ReadProxyConfigScheme(this.ProxyServerAddress, this.ServerAddress, out proxyServerAddress))
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{
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this.Listener.DebugReturn(DebugLevel.INFO, "ReadProxyConfigScheme() failed. Using no proxy.");
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}
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try
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{
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this.sock = new WebSocket(new Uri(this.ConnectAddress), proxyServerAddress, this.SerializationProtocol);
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this.sock.DebugReturn = (DebugLevel l, string s) =>
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{
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if (this.State != PhotonSocketState.Disconnected)
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{
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this.Listener.DebugReturn(l, this.State + " " + s);
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}
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};
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this.sock.Connect();
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mb.StartCoroutine(this.ReceiveLoop());
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return true;
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}
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catch (Exception e)
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{
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this.Listener.DebugReturn(DebugLevel.ERROR, "SocketWebTcp.Connect() caught exception: " + e);
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return false;
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}
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}
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/// <summary>
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/// Attempts to read a proxy configuration defined by a address prefix. Only available to Industries Circle members on demand.
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/// </summary>
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/// <remarks>
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/// Extended proxy support is available to Industries Circle members. Where available, proxy addresses may be defined as 'auto:', 'pac:' or 'system:'.
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/// In all other cases, the proxy address is used as is and fails to read configs (if one of the listed schemes is used).
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///
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/// Requires file ProxyAutoConfig.cs and compile define: WEBSOCKET_PROXYCONFIG_SUPPORT.
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/// </remarks>
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/// <param name="proxyAddress">Proxy address from the server configuration.</param>
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/// <param name="url">Url to connect to (one of the Photon servers).</param>
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/// <param name="proxyUrl">Resulting proxy URL to use.</param>
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/// <returns>False if there is some error and the resulting proxy address should not be used.</returns>
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private bool ReadProxyConfigScheme(string proxyAddress, string url, out string proxyUrl)
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{
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proxyUrl = null;
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#if !WEBSOCKET_PROXYCONFIG
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if (!string.IsNullOrEmpty(proxyAddress))
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{
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if (proxyAddress.StartsWith("auto:") || proxyAddress.StartsWith("pac:") || proxyAddress.StartsWith("system:"))
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{
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this.Listener.DebugReturn(DebugLevel.WARNING, "Proxy configuration via auto, pac or system is only supported with the WEBSOCKET_PROXYCONFIG define. Using no proxy instead.");
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return true;
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}
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proxyUrl = proxyAddress;
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}
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return true;
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#else
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if (!string.IsNullOrEmpty(proxyAddress))
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{
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var httpUrl = url.ToString().Replace("ws://", "http://").Replace("wss://", "https://"); // http(s) schema required in GetProxyForUrlUsingPac call
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bool auto = proxyAddress.StartsWith("auto:", StringComparison.InvariantCultureIgnoreCase);
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bool pac = proxyAddress.StartsWith("pac:", StringComparison.InvariantCultureIgnoreCase);
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if (auto || pac)
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{
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string pacUrl = "";
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if (pac)
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{
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pacUrl = proxyAddress.Substring(4);
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if (pacUrl.IndexOf("://") == -1)
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{
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pacUrl = "http://" + pacUrl; //default to http
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}
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}
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string processTypeStr = auto ? "auto detect" : "pac url " + pacUrl;
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this.Listener.DebugReturn(DebugLevel.INFO, "WebSocket Proxy: " + url + " " + processTypeStr);
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string errDescr = "";
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var err = ProxyAutoConfig.GetProxyForUrlUsingPac(httpUrl, pacUrl, out proxyUrl, out errDescr);
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if (err != 0)
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{
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this.Listener.DebugReturn(DebugLevel.ERROR, "WebSocket Proxy: " + url + " " + processTypeStr + " ProxyAutoConfig.GetProxyForUrlUsingPac() error: " + err + " (" + errDescr + ")");
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return false;
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}
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}
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else if (proxyAddress.StartsWith("system:", StringComparison.InvariantCultureIgnoreCase))
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{
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this.Listener.DebugReturn(DebugLevel.INFO, "WebSocket Proxy: " + url + " system settings");
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string proxyAutoConfigPacUrl;
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var err = ProxySystemSettings.GetProxy(out proxyUrl, out proxyAutoConfigPacUrl);
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if (err != 0)
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{
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this.Listener.DebugReturn(DebugLevel.ERROR, "WebSocket Proxy: " + url + " system settings ProxySystemSettings.GetProxy() error: " + err);
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return false;
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}
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if (proxyAutoConfigPacUrl != null)
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{
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if (proxyAutoConfigPacUrl.IndexOf("://") == -1)
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{
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proxyAutoConfigPacUrl = "http://" + proxyAutoConfigPacUrl; //default to http
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}
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this.Listener.DebugReturn(DebugLevel.INFO, "WebSocket Proxy: " + url + " system settings AutoConfigURL: " + proxyAutoConfigPacUrl);
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string errDescr = "";
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err = ProxyAutoConfig.GetProxyForUrlUsingPac(httpUrl, proxyAutoConfigPacUrl, out proxyUrl, out errDescr);
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if (err != 0)
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{
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this.Listener.DebugReturn(DebugLevel.ERROR, "WebSocket Proxy: " + url + " system settings AutoConfigURLerror: " + err + " (" + errDescr + ")");
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return false;
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}
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}
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}
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else
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{
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proxyUrl = proxyAddress;
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}
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this.Listener.DebugReturn(DebugLevel.INFO, "WebSocket Proxy: " + url + " -> " + (string.IsNullOrEmpty(proxyUrl) ? "DIRECT" : "PROXY " + proxyUrl));
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}
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return true;
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#endif
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}
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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 SocketWebTcp.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 + " 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 + " 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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}
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}
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#endif |