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