forked from livehelpnow/CSharpPhoenixClient
/
Socket.cs
251 lines (207 loc) · 7.07 KB
/
Socket.cs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
using System;
using System.Collections.Generic;
using System.Linq;
using WebSocketSharp;
using System.Timers;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
namespace PhoenixChannels
{
public class Socket
{
private IList<Action> _openCallbacks;
private IList<Action<CloseEventArgs>> _closeCallbacks;
private IList<Action<ErrorEventArgs>> _errorCallbacks;
private IList<Action<string, string, JObject>> _messageCallbacks;
private IList<Channel> _channels;
private IList<Action> _sendBuffer;
private int _ref = 0;
private int _heartbeatIntervalMs;
private string _endPoint;
private WebSocket _conn;
private Timer _reconnectTimer;
private Timer _heartbeatTimer;
public int ReconnectAfterMs { get; set; }
public Socket(string endPoint, int heartbeatIntervalMs = 30000, int reconnectAfterMs = 5000)
{
_openCallbacks = new List<Action>();
_closeCallbacks = new List<Action<CloseEventArgs>>();
_errorCallbacks = new List<Action<ErrorEventArgs>>();
_messageCallbacks = new List<Action<string, string, JObject>>();
_channels = new List<Channel>();
_sendBuffer = new List<Action>();
_ref = 0;
_heartbeatIntervalMs = heartbeatIntervalMs;
ReconnectAfterMs = reconnectAfterMs;
_endPoint = endPoint;
_reconnectTimer = new Timer(ReconnectAfterMs);
_reconnectTimer.AutoReset = true;
//_reconnectTimer.Enabled = false;
_reconnectTimer.Elapsed += (o, e) => Connect();
_heartbeatTimer = new Timer(_heartbeatIntervalMs);
_heartbeatTimer.AutoReset = true;
//_heartbeatTimer.Enabled = true;
_heartbeatTimer.Elapsed += (o, e) => SendHeartbeat();
}
public void Disconnect(Action callback, CloseStatusCode code = CloseStatusCode.NoStatus, string reason = null)
{
if (_conn != null)
{
// _conn.OnClose(); //TODO how to clear event handler?
if (code != CloseStatusCode.NoStatus)
{
_conn.Close(code, reason);
}
_conn = null;
}
if (callback != null) callback();
}
// disconnect(callback, code, reason){
// if(this.conn){
// this.conn.onclose = function(){} // noop
// if(code){ this.conn.close(code, reason || "") } else { this.conn.close() }
// this.conn = null
// }
// callback && callback()
// }
public void Connect()
{
Disconnect(() =>
{
_conn = new WebSocket(_endPoint);
_conn.OnOpen += OnConnOpen;
_conn.OnError += OnConnError;
_conn.OnMessage += OnConnMessage;
_conn.OnClose += OnConnClose;
_conn.Connect();
});
}
public Socket OnOpen(Action callback)
{
_openCallbacks.Add(callback);
return this;
}
public Socket OnClose(Action<object> callback)
{
_closeCallbacks.Add(callback);
return this;
}
public Socket OnError(Action<object> callback)
{
_errorCallbacks.Add(callback);
return this;
}
public Socket OnMessage(Action<string, string, JObject> callback)
{
_messageCallbacks.Add(callback);
return this;
}
private void OnConnOpen(object sender, EventArgs e)
{
FlushSendBuffer();
_reconnectTimer.Stop();
_heartbeatTimer.Stop();
_heartbeatTimer.Start();
foreach (var callback in _openCallbacks)
{
callback();
}
}
private void OnConnClose(object sender, CloseEventArgs e)
{
TriggerChanError();
_reconnectTimer.Stop();
_heartbeatTimer.Stop();
//_reconnectTimer.Start();
foreach (var callback in _closeCallbacks) callback(e);
}
private void OnConnError(object sender, ErrorEventArgs e)
{
TriggerChanError();
foreach (var callback in _errorCallbacks) callback(e);
}
private void TriggerChanError()
{
foreach (var c in _channels)
{
c.Trigger(ChannelEvents.Error);
}
}
private WebSocketState ConnectionState()
{
return _conn.ReadyState;
}
public bool IsConnected()
{
return ConnectionState() == WebSocketState.Open;
}
public void Remove(Channel chan)
{
_channels = _channels.Where(c => !c.IsMember(chan.Topic)).ToList();
}
public Channel Chan(string topic, JObject payload)
{
var chan = new Channel(topic, payload, this);
_channels.Add(chan);
return chan;
}
public void Push(Envelope envelope)
{
Action callback = () => _conn.Send(JObject.FromObject(envelope).ToString(Formatting.None));
if (IsConnected())
{
callback();
}
else
{
_sendBuffer.Add(callback);
}
}
public string MakeRef()
{
var newRef = _ref + 1;
_ref = (newRef < Int32.MaxValue) ? _ref = newRef : _ref = 0;
return _ref.ToString();
}
private void SendHeartbeat()
{
var env = new Envelope()
{
Topic = "phoenix",
Event = "heartbeat",
Payload = new JObject(),
Ref = MakeRef(),
};
Push(env);
}
private void FlushSendBuffer()
{
if (this.IsConnected() && _sendBuffer.Count > 0)
{
foreach (var c in _sendBuffer)
{
c();
}
_sendBuffer.Clear();
}
}
private void OnConnMessage(object sender, MessageEventArgs e)
{
var env = JsonConvert.DeserializeObject<Envelope>(e.Data);
foreach(var chan in _channels.Where((c) => c.IsMember(env.Topic)).ToList())
{
chan.Trigger(env.Event, env.Payload, env.Ref);
}
foreach (var callback in _messageCallbacks) callback(env.Topic, env.Event, env.Payload);
}
// onConnMessage(rawMessage){
// let {topic, event, payload} = JSON.parse(rawMessage.data)
// this.channels.filter( chan => chan.isMember(topic) )
// .forEach( chan => chan.trigger(event, payload) )
// this.stateChangeCallbacks.message.forEach( callback => {
// callback(topic, event, payload)
// })
// }
//}
}
}