blob: 9b7f734d2502faeb8a5d145319c630635b1938db (
plain)
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
|
using Microsoft.AspNet.SignalR;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Web;
using Tango.Integration.ExternalBridge.Web;
namespace Tango.MachineService.Hubs
{
public class ExternalBridgeHub : Hub
{
private static List<ExternalBridgeInfo> _externalBridges;
private static List<MachineSession> _sessions;
public class ExternalBridgeInfo
{
public String ConnectionID { get; set; }
public MachineInfo MachineInfo { get; set; }
}
public class MachineSession
{
public String SessionID { get; set; }
public String ReceiverConnectionID { get; set; }
public String ControllerConnectionID { get; set; }
public ExternalBridgeInfo ExternalBridge { get; set; }
public MachineSession()
{
SessionID = Guid.NewGuid().ToString();
}
}
static ExternalBridgeHub()
{
_externalBridges = new List<ExternalBridgeInfo>();
_sessions = new List<MachineSession>();
}
public void RegisterMachine(MachineInfo machineInfo)
{
_externalBridges.RemoveAll(x => x.MachineInfo.SerialNumber == machineInfo.SerialNumber);
_sessions.RemoveAll(x => x.ExternalBridge.ConnectionID == Context.ConnectionId);
machineInfo.IPAddress = GetIpAddress();
_externalBridges.Add(new ExternalBridgeInfo()
{
MachineInfo = machineInfo,
ConnectionID = Context.ConnectionId,
});
}
public void UnregisterMachine()
{
_externalBridges.RemoveAll(x => x.ConnectionID == Context.ConnectionId);
_sessions.RemoveAll(x => x.ExternalBridge.ConnectionID == Context.ConnectionId);
}
public String Ping()
{
return "Ping";
}
public List<MachineInfo> GetAvailableMachines()
{
return _externalBridges.Select(x => x.MachineInfo).ToList();
}
public String CreateSession(String serialNumber)
{
var externalBridge = _externalBridges.SingleOrDefault(x => x.MachineInfo.SerialNumber == serialNumber);
if (externalBridge != null)
{
var existingSession = GetSession();
if (existingSession != null)
{
_sessions.Remove(existingSession);
}
MachineSession session = new MachineSession();
session.ControllerConnectionID = Context.ConnectionId;
session.ExternalBridge = externalBridge;
_sessions.Add(session);
Clients.Client(externalBridge.ConnectionID).OnSessionCreated(session.SessionID);
return session.SessionID;
}
return null;
}
public void JoinSession(String sessionID)
{
var session = _sessions.SingleOrDefault(x => x.SessionID == sessionID);
if (session != null)
{
session.ReceiverConnectionID = Context.ConnectionId;
Clients.Client(session.ControllerConnectionID).SessionCreated();
}
}
public void Write(List<byte[]> dataCollection)
{
var connectionID = GetOtherSideConnectionID();
if (connectionID != null)
{
Clients.Client(connectionID).DataAvailable(dataCollection);
}
}
public void LeaveSession()
{
var connectionID = GetOtherSideConnectionID();
ClearSession();
Clients.Client(connectionID).OnSessionClosed();
}
public override Task OnDisconnected(bool stopCalled)
{
_externalBridges.RemoveAll(x => x.ConnectionID == Context.ConnectionId);
_sessions.RemoveAll(x => x.ControllerConnectionID == Context.ConnectionId || x.ReceiverConnectionID == Context.ConnectionId || x.ExternalBridge.ConnectionID == Context.ConnectionId);
return base.OnDisconnected(stopCalled);
}
private void ClearSession()
{
_sessions.RemoveAll(x => x.ControllerConnectionID == Context.ConnectionId || x.ReceiverConnectionID == Context.ConnectionId);
}
private MachineSession GetSession()
{
return _sessions.SingleOrDefault(x => x.ReceiverConnectionID == Context.ConnectionId || x.ControllerConnectionID == Context.ConnectionId);
}
private String GetOtherSideConnectionID()
{
var session = GetSession();
if (session != null)
{
String connectionID = String.Empty;
if (session.ReceiverConnectionID == Context.ConnectionId)
{
connectionID = session.ControllerConnectionID;
}
else
{
connectionID = session.ReceiverConnectionID;
}
return connectionID;
}
return null;
}
protected string GetIpAddress()
{
try
{
string ipAddress;
object tempObject;
Context.Request.Environment.TryGetValue("server.RemoteIpAddress", out tempObject);
if (tempObject != null)
{
ipAddress = (string)tempObject;
}
else
{
ipAddress = "";
}
return ipAddress;
}
catch
{
return String.Empty;
}
}
}
}
|
