clockwerk-opensim – Blame information for rev 1

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1 vero 1 /*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSimulator Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27  
28 using System.Net;
29 using Nwc.XmlRpc;
30 using OpenSim.Framework;
31  
32  
33 namespace OpenSim.Framework.Servers.HttpServer
34 {
35 public class XmlRpcBasicDOSProtector
36 {
37 private readonly XmlRpcMethod _normalMethod;
38 private readonly XmlRpcMethod _throttledMethod;
39  
40 private readonly BasicDosProtectorOptions _options;
41 private readonly BasicDOSProtector _dosProtector;
42  
43 public XmlRpcBasicDOSProtector(XmlRpcMethod normalMethod, XmlRpcMethod throttledMethod,BasicDosProtectorOptions options)
44 {
45 _normalMethod = normalMethod;
46 _throttledMethod = throttledMethod;
47  
48 _options = options;
49 _dosProtector = new BasicDOSProtector(_options);
50  
51 }
52 public XmlRpcResponse Process(XmlRpcRequest request, IPEndPoint client)
53 {
54  
55 XmlRpcResponse resp = null;
56 string clientstring = GetClientString(request, client);
57 string endpoint = GetEndPoint(request, client);
58 if (_dosProtector.Process(clientstring, endpoint))
59 resp = _normalMethod(request, client);
60 else
61 resp = _throttledMethod(request, client);
62 if (_options.MaxConcurrentSessions > 0)
63 _dosProtector.ProcessEnd(clientstring, endpoint);
64 return resp;
65 }
66  
67 private string GetClientString(XmlRpcRequest request, IPEndPoint client)
68 {
69 string clientstring;
70 if (_options.AllowXForwardedFor && request.Params.Count > 3)
71 {
72 object headerstr = request.Params[3];
73 if (headerstr != null && !string.IsNullOrEmpty(headerstr.ToString()))
74 clientstring = request.Params[3].ToString();
75 else
76 clientstring = client.Address.ToString();
77 }
78 else
79 clientstring = client.Address.ToString();
80 return clientstring;
81 }
82  
83 private string GetEndPoint(XmlRpcRequest request, IPEndPoint client)
84 {
85 return client.Address.ToString();
86 }
87  
88 }
89  
90  
91 }