/// <summary>
/// <para>Client performs an initial HTTP POST to obtain a SessionId (sid) assigned to a client, followed
/// by the heartbeat timeout, connection closing timeout, and the list of supported transports.</para>
/// <para>The tansport and sid are required as part of the ws: transport connection</para>
/// </summary>
/// <param name="uri">http://localhost:3000</param>
/// <returns>Handshake object with sid value</returns>
/// <example>DownloadString: 13052140081337757257:15:25:websocket,htmlfile,xhr-polling,jsonp-polling</example>
protected SocketIOHandshake requestHandshake(Uri uri)
{
string value = string.Empty;
string errorText = string.Empty;
SocketIOHandshake handshake = null;
using (WebClient client = new WebClient())
{
try
{
value = client.DownloadString(string.Format("{0}://{1}:{2}/socket.io/1/{3}", uri.Scheme, uri.Host, uri.Port, uri.Query)); // #5 tkiley: The uri.Query is available in socket.io's handshakeData object during authorization
// 13052140081337757257:15:25:websocket,htmlfile,xhr-polling,jsonp-polling
if (string.IsNullOrEmpty(value))
{
errorText = "Did not receive handshake string from server";
}
}
catch (Exception ex)
{
errorText = string.Format("Error getting handsake from Socket.IO host instance: {0}", ex.Message);
//this.OnErrorEvent(this, new ErrorEventArgs(errMsg));
}
}
if (string.IsNullOrEmpty(errorText))
{
handshake = SocketIOHandshake.LoadFromString(value);
}
else
{
handshake = new SocketIOHandshake();
handshake.ErrorMessage = errorText;
}
return(handshake);
}
public static SocketIOHandshake LoadFromString(string value)
{
SocketIOHandshake returnItem = new SocketIOHandshake();
if (!string.IsNullOrEmpty(value))
{
string[] items = value.Split(new char[] { ':' });
if (items.Count() == 4)
{
int hb = 0;
int ct = 0;
returnItem.SID = items[0];
if (int.TryParse(items[1], out hb))
{
var pct = (int)(hb * .75); // setup client time to occure 25% faster than needed
returnItem.HeartbeatTimeout = pct;
}
if (int.TryParse(items[2], out ct))
returnItem.ConnectionTimeout = ct;
returnItem.Transports.AddRange(items[3].Split(new char[] { ',' }));
return returnItem;
}
}
return null;
}
public static SocketIOHandshake LoadFromString(string value)
{
SocketIOHandshake returnItem = new SocketIOHandshake();
if (!string.IsNullOrEmpty(value))
{
string[] items = value.Split(new char[] { ':' });
if (items.Count() == 4)
{
int hb = 0;
int ct = 0;
returnItem.SID = items[0];
if (int.TryParse(items[1], out hb))
{
var pct = (int)(hb * .75); // setup client time to occure 25% faster than needed
returnItem.HeartbeatTimeout = pct;
}
if (int.TryParse(items[2], out ct))
{
returnItem.ConnectionTimeout = ct;
}
returnItem.Transports.AddRange(items[3].Split(new char[] { ',' }));
return(returnItem);
}
}
return(null);
}
public static SocketIOHandshake LoadFromJsonString(string value)
{
bool allOk = true;
SocketIOHandshake returnItem = new SocketIOHandshake();
if (!string.IsNullOrEmpty(value))
{
Dictionary <string, object> jsonDict = SimpleJson.SimpleJson.DeserializeObject <Dictionary <string, object> >(value);
if (jsonDict == null)
{
return(null);
}
// {"sid":"DS7Rday6ZClMHIH8AAAB","upgrades":["websocket"],"pingInterval":25000,"pingTimeout":60000}
if (jsonDict.ContainsKey("sid"))
{
returnItem.SID = (string)jsonDict["sid"];
}
else
{
allOk = false;
}
if (jsonDict.ContainsKey("pingInterval"))
{
var pct = (int)((int)jsonDict["pingInterval"] * .75); // setup client time to occure 25% faster than needed
returnItem.HeartbeatTimeout = pct;
}
else
{
allOk = false;
}
if (jsonDict.ContainsKey("pingTimeout"))
{
returnItem.HeartbeatTimeout = (int)jsonDict["pingTimeout"];
}
else
{
allOk = false;
}
}
return(allOk ? returnItem : null);
}
/// <summary>
/// <para>Client performs an initial HTTP POST to obtain a SessionId (sid) assigned to a client, followed
/// by the heartbeat timeout, connection closing timeout, and the list of supported transports.</para>
/// <para>The tansport and sid are required as part of the ws: transport connection</para>
/// </summary>
/// <param name="uri">http://localhost:3000</param>
/// <returns>Handshake object with sid value</returns>
/// <example>DownloadString: 13052140081337757257:15:25:websocket,htmlfile,xhr-polling,jsonp-polling</example>
protected SocketIOHandshake requestHandshake(Uri uri)
{
string value = string.Empty;
string errorText = string.Empty;
SocketIOHandshake handshake = null;
using (WebClient client = new WebClient())
{
try
{
var url = string.Format("{0}://{1}:{2}/socket.io/{3}", uri.Scheme, uri.Host, uri.Port, uri.Query);
client.Headers.Add("Upgrade", "websocket");
client.Headers.Add("Connection", "Upgrade");
client.Headers.Add("Sec-Websocket-Version", "13");
client.Headers.Add("Sec-WebSocket-Key", "Lp2qSYxx3lHnGHdwFyHKQA==");
value = client.DownloadString(url); // #5 tkiley: The uri.Query is available in socket.io's handshakeData object during authorization
//value = client.ResponseHeaders.Get("Sec-WebSocket-Accept"); // 13052140081337757257:15:25:websocket,htmlfile,xhr-polling,jsonp-polling
if (string.IsNullOrEmpty(value))
{
errorText = "Did not receive handshake string from server";
}
}
catch (Exception ex)
{
errorText = string.Format("Error getting handsake from Socket.IO host instance: {0}", ex.Message);
//this.OnErrorEvent(this, new ErrorEventArgs(errMsg));
}
}
if (string.IsNullOrEmpty(errorText))
{
handshake = SocketIOHandshake.LoadFromString(value);
}
else
{
handshake = new SocketIOHandshake();
handshake.ErrorMessage = errorText;
}
return(handshake);
}
/// <summary>
/// <para>Client performs an initial HTTP POST to obtain a SessionId (sid) assigned to a client, followed
/// by the heartbeat timeout, connection closing timeout, and the list of supported transports.</para>
/// <para>The tansport and sid are required as part of the ws: transport connection</para>
/// </summary>
/// <param name="uri">http://localhost:3000</param>
/// <returns>Handshake object with sid value</returns>
/// <example>DownloadString: 13052140081337757257:15:25:websocket,htmlfile,xhr-polling,jsonp-polling</example>
protected SocketIOHandshake requestHandshake(Uri uri)
{
string value = string.Empty;
string errorText = string.Empty;
SocketIOHandshake handshake = null;
using (WebClient client = new WebClient())
{
try
{
value = client.DownloadString(string.Format("{0}://{1}:{2}/socket.io/1/{3}", uri.Scheme, uri.Host, uri.Port, uri.Query)); // #5 tkiley: The uri.Query is available in socket.io's handshakeData object during authorization
// 13052140081337757257:15:25:websocket,htmlfile,xhr-polling,jsonp-polling
if (string.IsNullOrEmpty(value))
errorText = "Did not receive handshake string from server";
}
catch (Exception ex)
{
errorText = string.Format("Error getting handsake from Socket.IO host instance: {0}", ex.Message);
//this.OnErrorEvent(this, new ErrorEventArgs(errMsg));
}
}
if (string.IsNullOrEmpty(errorText))
handshake = SocketIOHandshake.LoadFromString(value);
else
{
handshake = new SocketIOHandshake();
handshake.ErrorMessage = errorText;
}
return handshake;
}
/// <summary>
/// <para>Client performs an initial HTTP POST to obtain a SessionId (sid) assigned to a client, followed
/// by the heartbeat timeout, connection closing timeout, and the list of supported transports.</para>
/// <para>The tansport and sid are required as part of the ws: transport connection</para>
/// </summary>
/// <param name="uri">http://localhost:3000</param>
/// <returns>Handshake object with sid value</returns>
/// <example>DownloadString: 13052140081337757257:15:25:websocket,htmlfile,xhr-polling,jsonp-polling</example>
protected void requestHandshake(Uri uri, Action<SocketIOHandshake> callback)
{
string value = string.Empty;
string errorText = string.Empty;
SocketIOHandshake handshake = null;
UnityHTTP.Request request = new UnityHTTP.Request("get", string.Format("{0}://{1}:{2}/socket.io/1/{3}", uri.Scheme, uri.Host, uri.Port, uri.Query));
request.Send(req => {
if (request.response != null) {
value = request.response.Text;
}
if (string.IsNullOrEmpty(value))
errorText = "Did not receive handshake string from server";
if (string.IsNullOrEmpty(errorText))
handshake = SocketIOHandshake.LoadFromString(value);
else
{
handshake = new SocketIOHandshake();
handshake.ErrorMessage = errorText;
}
callback(handshake);
});
}
private void HandshakeCallback(object sender, DownloadStringCompletedEventArgs eventArgs){
SocketIOHandshake handshake;
if (eventArgs.Error == null)
handshake = SocketIOHandshake.LoadFromString(eventArgs.Result);
else
{
handshake = new SocketIOHandshake();
handshake.ErrorMessage = eventArgs.Error.Message;
}
this.HandShake = handshake;
if (this.HandShake == null || string.IsNullOrEmpty(this.HandShake.SID) || this.HandShake.HadError)
{
this.LastErrorMessage = string.Format("Error initializing handshake with {0}", uri.ToString());
this.OnErrorEvent(this, new ErrorEventArgs(this.LastErrorMessage, new Exception()));
}
else
{
string wsScheme = (uri.Scheme == Uri.UriSchemeHttps ? "wss" : "ws");
string url = string.Format("{0}://{1}:{2}/socket.io/1/websocket/{3}", wsScheme, uri.Host, uri.Port, this.HandShake.SID);
this.wsClient = new WebSocket(url);
this.wsClient.OnOpen += this.wsClient_OpenEvent;
this.wsClient.OnMessage += this.wsClient_MessageReceived;
this.wsClient.OnError += this.wsClient_Error;
this.wsClient.OnClose += wsClient_Closed;
this.wsClient.Connect();
}
}