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
|
using System;
using System.Collections.Generic;
using System.Net;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;
using OpenSim.CAPS;
using Nwc.XmlRpc;
using System.Collections;
namespace OpenSim.Servers
{
public class BaseHttpServer
{
protected Thread m_workerThread;
protected HttpListener m_httpListener;
protected Dictionary<string, IRestHandler> m_restHandlers = new Dictionary<string, IRestHandler>();
protected Dictionary<string, XmlRpcMethod> m_rpcHandlers = new Dictionary<string, XmlRpcMethod>();
protected int m_port;
public BaseHttpServer(int port)
{
m_port = port;
}
public bool AddRestHandler(string path, IRestHandler handler)
{
if (!this.m_restHandlers.ContainsKey(path))
{
this.m_restHandlers.Add(path, handler);
return true;
}
//must already have a handler for that path so return false
return false;
}
public bool AddXmlRPCHandler(string method, XmlRpcMethod handler)
{
if (!this.m_rpcHandlers.ContainsKey(method))
{
this.m_rpcHandlers.Add(method, handler);
return true;
}
//must already have a handler for that path so return false
return false;
}
protected virtual string ProcessXMLRPCMethod(string methodName, XmlRpcRequest request)
{
XmlRpcResponse response;
XmlRpcMethod method;
if( this.m_rpcHandlers.TryGetValue( methodName, out method ) )
{
response = method(request);
}
else
{
response = new XmlRpcResponse();
Hashtable unknownMethodError = new Hashtable();
unknownMethodError["reason"] = "XmlRequest"; ;
unknownMethodError["message"] = "Unknown Rpc request";
unknownMethodError["login"] = "false";
response.Value = unknownMethodError;
}
return XmlRpcResponseSerializer.Singleton.Serialize(response);
}
protected virtual string ParseREST(string requestBody, string requestURL, string requestMethod)
{
string[] path;
string pathDelimStr = "/";
char[] pathDelimiter = pathDelimStr.ToCharArray();
path = requestURL.Split(pathDelimiter);
string responseString = "";
//path[0] should be empty so we are interested in path[1]
if (path.Length > 1)
{
if ((path[1] != "") && (this.m_restHandlers.ContainsKey(path[1])))
{
responseString = this.m_restHandlers[path[1]].HandleREST(requestBody, requestURL, requestMethod);
}
}
return responseString;
}
protected virtual string ParseLLSDXML(string requestBody)
{
// dummy function for now - IMPLEMENT ME!
return "";
}
protected virtual string ParseXMLRPC(string requestBody)
{
string responseString = String.Empty;
try
{
XmlRpcRequest request = (XmlRpcRequest)(new XmlRpcRequestDeserializer()).Deserialize(requestBody);
string methodName = request.MethodName;
responseString = ProcessXMLRPCMethod(methodName, request );
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
return responseString;
}
public virtual void HandleRequest(Object stateinfo)
{
HttpListenerContext context = (HttpListenerContext)stateinfo;
HttpListenerRequest request = context.Request;
HttpListenerResponse response = context.Response;
response.KeepAlive = false;
response.SendChunked = false;
System.IO.Stream body = request.InputStream;
System.Text.Encoding encoding = System.Text.Encoding.UTF8;
System.IO.StreamReader reader = new System.IO.StreamReader(body, encoding);
string requestBody = reader.ReadToEnd();
body.Close();
reader.Close();
//Console.WriteLine(request.HttpMethod + " " + request.RawUrl + " Http/" + request.ProtocolVersion.ToString() + " content type: " + request.ContentType);
//Console.WriteLine(requestBody);
string responseString = "";
switch (request.ContentType)
{
case "text/xml":
// must be XML-RPC, so pass to the XML-RPC parser
responseString = ParseXMLRPC(requestBody);
responseString = Regex.Replace(responseString, "utf-16", "utf-8");
response.AddHeader("Content-type", "text/xml");
break;
case "application/xml":
// probably LLSD we hope, otherwise it should be ignored by the parser
responseString = ParseLLSDXML(requestBody);
response.AddHeader("Content-type", "application/xml");
break;
case "application/x-www-form-urlencoded":
// a form data POST so send to the REST parser
responseString = ParseREST(requestBody, request.RawUrl, request.HttpMethod);
response.AddHeader("Content-type", "text/html");
break;
case null:
// must be REST or invalid crap, so pass to the REST parser
responseString = ParseREST(requestBody, request.RawUrl, request.HttpMethod);
response.AddHeader("Content-type", "text/html");
break;
}
byte[] buffer = System.Text.Encoding.UTF8.GetBytes(responseString);
System.IO.Stream output = response.OutputStream;
response.SendChunked = false;
response.ContentLength64 = buffer.Length;
output.Write(buffer, 0, buffer.Length);
output.Close();
}
public void Start()
{
OpenSim.Framework.Console.MainConsole.Instance.WriteLine("BaseHttpServer.cs: Starting up HTTP Server");
m_workerThread = new Thread(new ThreadStart(StartHTTP));
m_workerThread.IsBackground = true;
m_workerThread.Start();
}
private void StartHTTP()
{
try
{
OpenSim.Framework.Console.MainConsole.Instance.WriteLine("BaseHttpServer.cs: StartHTTP() - Spawned main thread OK");
m_httpListener = new HttpListener();
m_httpListener.Prefixes.Add("http://+:" + m_port + "/");
m_httpListener.Start();
HttpListenerContext context;
while (true)
{
context = m_httpListener.GetContext();
ThreadPool.QueueUserWorkItem(new WaitCallback(HandleRequest), context);
}
}
catch (Exception e)
{
OpenSim.Framework.Console.MainConsole.Instance.WriteLine(e.Message);
}
}
}
}
|
