opensim-development – Blame information for rev 1
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1 | eva | 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; |
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29 | using System.IO; |
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30 | using System.Net; |
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31 | using System.Reflection; |
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32 | using System.Text; |
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33 | using System.Xml; |
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34 | using System.Xml.Serialization; |
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35 | using log4net; |
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36 | |||
37 | namespace OpenSim.Framework.Servers.HttpServer |
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38 | { |
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39 | public class RestSessionObject<TRequest> |
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40 | { |
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41 | private string sid; |
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42 | private string aid; |
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43 | private TRequest request_body; |
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44 | |||
45 | public string SessionID |
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46 | { |
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47 | get { return sid; } |
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48 | set { sid = value; } |
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49 | } |
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50 | |||
51 | public string AvatarID |
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52 | { |
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53 | get { return aid; } |
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54 | set { aid = value; } |
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55 | } |
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56 | |||
57 | public TRequest Body |
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58 | { |
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59 | get { return request_body; } |
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60 | set { request_body = value; } |
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61 | } |
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62 | } |
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63 | |||
64 | public class SynchronousRestSessionObjectPoster<TRequest, TResponse> |
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65 | { |
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66 | public static TResponse BeginPostObject(string verb, string requestUrl, TRequest obj, string sid, string aid) |
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67 | { |
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68 | RestSessionObject<TRequest> sobj = new RestSessionObject<TRequest>(); |
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69 | sobj.SessionID = sid; |
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70 | sobj.AvatarID = aid; |
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71 | sobj.Body = obj; |
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72 | |||
73 | Type type = typeof(RestSessionObject<TRequest>); |
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74 | |||
75 | WebRequest request = WebRequest.Create(requestUrl); |
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76 | request.Method = verb; |
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77 | request.ContentType = "text/xml"; |
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78 | request.Timeout = 20000; |
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79 | |||
80 | MemoryStream buffer = new MemoryStream(); |
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81 | |||
82 | XmlWriterSettings settings = new XmlWriterSettings(); |
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83 | settings.Encoding = Encoding.UTF8; |
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84 | |||
85 | using (XmlWriter writer = XmlWriter.Create(buffer, settings)) |
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86 | { |
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87 | XmlSerializer serializer = new XmlSerializer(type); |
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88 | serializer.Serialize(writer, sobj); |
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89 | writer.Flush(); |
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90 | } |
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91 | |||
92 | int length = (int)buffer.Length; |
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93 | request.ContentLength = length; |
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94 | |||
95 | Stream requestStream = request.GetRequestStream(); |
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96 | requestStream.Write(buffer.ToArray(), 0, length); |
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97 | buffer.Close(); |
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98 | requestStream.Close(); |
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99 | |||
100 | TResponse deserial = default(TResponse); |
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101 | using (WebResponse resp = request.GetResponse()) |
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102 | { |
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103 | XmlSerializer deserializer = new XmlSerializer(typeof(TResponse)); |
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104 | |||
105 | using (Stream respStream = resp.GetResponseStream()) |
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106 | deserial = (TResponse)deserializer.Deserialize(respStream); |
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107 | } |
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108 | |||
109 | return deserial; |
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110 | } |
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111 | } |
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112 | |||
113 | public class RestSessionObjectPosterResponse<TRequest, TResponse> |
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114 | { |
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115 | public ReturnResponse<TResponse> ResponseCallback; |
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116 | |||
117 | public void BeginPostObject(string requestUrl, TRequest obj, string sid, string aid) |
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118 | { |
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119 | BeginPostObject("POST", requestUrl, obj, sid, aid); |
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120 | } |
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121 | |||
122 | public void BeginPostObject(string verb, string requestUrl, TRequest obj, string sid, string aid) |
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123 | { |
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124 | RestSessionObject<TRequest> sobj = new RestSessionObject<TRequest>(); |
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125 | sobj.SessionID = sid; |
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126 | sobj.AvatarID = aid; |
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127 | sobj.Body = obj; |
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128 | |||
129 | Type type = typeof(RestSessionObject<TRequest>); |
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130 | |||
131 | WebRequest request = WebRequest.Create(requestUrl); |
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132 | request.Method = verb; |
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133 | request.ContentType = "text/xml"; |
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134 | request.Timeout = 10000; |
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135 | |||
136 | MemoryStream buffer = new MemoryStream(); |
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137 | |||
138 | XmlWriterSettings settings = new XmlWriterSettings(); |
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139 | settings.Encoding = Encoding.UTF8; |
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140 | |||
141 | using (XmlWriter writer = XmlWriter.Create(buffer, settings)) |
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142 | { |
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143 | XmlSerializer serializer = new XmlSerializer(type); |
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144 | serializer.Serialize(writer, sobj); |
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145 | writer.Flush(); |
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146 | } |
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147 | buffer.Close(); |
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148 | |||
149 | int length = (int)buffer.Length; |
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150 | request.ContentLength = length; |
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151 | |||
152 | Stream requestStream = request.GetRequestStream(); |
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153 | requestStream.Write(buffer.ToArray(), 0, length); |
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154 | requestStream.Close(); |
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155 | // IAsyncResult result = request.BeginGetResponse(AsyncCallback, request); |
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156 | request.BeginGetResponse(AsyncCallback, request); |
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157 | } |
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158 | |||
159 | private void AsyncCallback(IAsyncResult result) |
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160 | { |
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161 | WebRequest request = (WebRequest)result.AsyncState; |
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162 | using (WebResponse resp = request.EndGetResponse(result)) |
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163 | { |
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164 | TResponse deserial; |
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165 | XmlSerializer deserializer = new XmlSerializer(typeof(TResponse)); |
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166 | Stream stream = resp.GetResponseStream(); |
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167 | |||
168 | // This is currently a bad debug stanza since it gobbles us the response... |
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169 | // StreamReader reader = new StreamReader(stream); |
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170 | // m_log.DebugFormat("[REST OBJECT POSTER RESPONSE]: Received {0}", reader.ReadToEnd()); |
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171 | |||
172 | deserial = (TResponse)deserializer.Deserialize(stream); |
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173 | if (stream != null) |
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174 | stream.Close(); |
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175 | |||
176 | if (deserial != null && ResponseCallback != null) |
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177 | { |
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178 | ResponseCallback(deserial); |
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179 | } |
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180 | } |
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181 | } |
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182 | } |
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183 | |||
184 | public delegate bool CheckIdentityMethod(string sid, string aid); |
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185 | |||
186 | public class RestDeserialiseSecureHandler<TRequest, TResponse> : BaseOutputStreamHandler, IStreamHandler |
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187 | where TRequest : new() |
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188 | { |
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189 | private static readonly ILog m_log |
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190 | = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); |
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191 | |||
192 | private RestDeserialiseMethod<TRequest, TResponse> m_method; |
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193 | private CheckIdentityMethod m_smethod; |
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194 | |||
195 | public RestDeserialiseSecureHandler( |
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196 | string httpMethod, string path, |
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197 | RestDeserialiseMethod<TRequest, TResponse> method, CheckIdentityMethod smethod) |
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198 | : base(httpMethod, path) |
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199 | { |
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200 | m_smethod = smethod; |
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201 | m_method = method; |
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202 | } |
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203 | |||
204 | protected override void ProcessRequest(string path, Stream request, Stream responseStream, |
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205 | IOSHttpRequest httpRequest, IOSHttpResponse httpResponse) |
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206 | { |
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207 | RestSessionObject<TRequest> deserial = default(RestSessionObject<TRequest>); |
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208 | bool fail = false; |
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209 | |||
210 | using (XmlTextReader xmlReader = new XmlTextReader(request)) |
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211 | { |
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212 | try |
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213 | { |
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214 | XmlSerializer deserializer = new XmlSerializer(typeof(RestSessionObject<TRequest>)); |
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215 | deserial = (RestSessionObject<TRequest>)deserializer.Deserialize(xmlReader); |
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216 | } |
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217 | catch (Exception e) |
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218 | { |
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219 | m_log.Error("[REST]: Deserialization problem. Ignoring request. " + e); |
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220 | fail = true; |
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221 | } |
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222 | } |
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223 | |||
224 | TResponse response = default(TResponse); |
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225 | if (!fail && m_smethod(deserial.SessionID, deserial.AvatarID)) |
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226 | { |
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227 | response = m_method(deserial.Body); |
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228 | } |
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229 | |||
230 | using (XmlWriter xmlWriter = XmlTextWriter.Create(responseStream)) |
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231 | { |
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232 | XmlSerializer serializer = new XmlSerializer(typeof(TResponse)); |
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233 | serializer.Serialize(xmlWriter, response); |
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234 | } |
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235 | } |
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236 | } |
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237 | |||
238 | public delegate bool CheckTrustedSourceMethod(IPEndPoint peer); |
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239 | |||
240 | public class RestDeserialiseTrustedHandler<TRequest, TResponse> : BaseOutputStreamHandler, IStreamHandler |
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241 | where TRequest : new() |
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242 | { |
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243 | private static readonly ILog m_log |
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244 | = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); |
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245 | |||
246 | /// <summary> |
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247 | /// The operation to perform once trust has been established. |
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248 | /// </summary> |
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249 | private RestDeserialiseMethod<TRequest, TResponse> m_method; |
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250 | |||
251 | /// <summary> |
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252 | /// The method used to check whether a request is trusted. |
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253 | /// </summary> |
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254 | private CheckTrustedSourceMethod m_tmethod; |
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255 | |||
256 | public RestDeserialiseTrustedHandler(string httpMethod, string path, RestDeserialiseMethod<TRequest, TResponse> method, CheckTrustedSourceMethod tmethod) |
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257 | : base(httpMethod, path) |
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258 | { |
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259 | m_tmethod = tmethod; |
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260 | m_method = method; |
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261 | } |
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262 | |||
263 | protected override void ProcessRequest(string path, Stream request, Stream responseStream, |
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264 | IOSHttpRequest httpRequest, IOSHttpResponse httpResponse) |
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265 | { |
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266 | TRequest deserial = default(TRequest); |
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267 | bool fail = false; |
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268 | |||
269 | using (XmlTextReader xmlReader = new XmlTextReader(request)) |
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270 | { |
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271 | try |
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272 | { |
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273 | XmlSerializer deserializer = new XmlSerializer(typeof(TRequest)); |
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274 | deserial = (TRequest)deserializer.Deserialize(xmlReader); |
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275 | } |
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276 | catch (Exception e) |
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277 | { |
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278 | m_log.Error("[REST]: Deserialization problem. Ignoring request. " + e); |
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279 | fail = true; |
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280 | } |
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281 | } |
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282 | |||
283 | TResponse response = default(TResponse); |
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284 | if (!fail && m_tmethod(httpRequest.RemoteIPEndPoint)) |
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285 | { |
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286 | response = m_method(deserial); |
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287 | } |
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288 | |||
289 | using (XmlWriter xmlWriter = XmlTextWriter.Create(responseStream)) |
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290 | { |
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291 | XmlSerializer serializer = new XmlSerializer(typeof(TResponse)); |
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292 | serializer.Serialize(xmlWriter, response); |
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293 | } |
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294 | } |
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295 | } |
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296 | } |