opensim – 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.Collections.Generic; |
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30 | using System.Net; |
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31 | using System.Net.Sockets; |
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32 | using System.Reflection; |
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33 | using System.Text.RegularExpressions; |
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34 | using System.Threading; |
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35 | using System.Security.Cryptography.X509Certificates; |
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36 | using log4net; |
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37 | using HttpServer; |
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38 | |||
39 | using HttpListener = HttpServer.HttpListener; |
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40 | |||
41 | namespace OpenSim.Framework.Servers.HttpServer |
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42 | { |
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43 | /// <summary> |
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44 | /// OSHttpServer provides an HTTP server bound to a specific |
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45 | /// port. When instantiated with just address and port it uses |
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46 | /// normal HTTP, when instantiated with address, port, and X509 |
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47 | /// certificate, it uses HTTPS. |
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48 | /// </summary> |
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49 | public class OSHttpServer |
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50 | { |
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51 | private static readonly ILog _log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); |
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52 | |||
53 | private object _syncObject = new object(); |
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54 | |||
55 | // underlying HttpServer.HttpListener |
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56 | protected HttpListener _listener; |
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57 | // underlying core/engine thread |
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58 | protected Thread _engine; |
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59 | |||
60 | // Queue containing (OS)HttpRequests |
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61 | protected OSHttpRequestQueue _queue; |
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62 | |||
63 | // OSHttpRequestPumps "pumping" incoming OSHttpRequests |
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64 | // upwards |
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65 | protected OSHttpRequestPump[] _pumps; |
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66 | |||
67 | // thread identifier |
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68 | protected string _engineId; |
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69 | public string EngineID |
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70 | { |
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71 | get { return _engineId; } |
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72 | } |
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73 | |||
74 | /// <summary> |
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75 | /// True if this is an HTTPS connection; false otherwise. |
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76 | /// </summary> |
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77 | protected bool _isSecure; |
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78 | public bool IsSecure |
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79 | { |
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80 | get { return _isSecure; } |
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81 | } |
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82 | |||
83 | public int QueueSize |
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84 | { |
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85 | get { return _pumps.Length; } |
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86 | } |
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87 | |||
88 | /// <summary> |
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89 | /// List of registered OSHttpHandlers for this OSHttpServer instance. |
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90 | /// </summary> |
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91 | protected List<OSHttpHandler> _httpHandlers = new List<OSHttpHandler>(); |
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92 | public List<OSHttpHandler> OSHttpHandlers |
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93 | { |
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94 | get |
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95 | { |
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96 | lock (_httpHandlers) |
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97 | { |
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98 | return new List<OSHttpHandler>(_httpHandlers); |
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99 | } |
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100 | } |
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101 | } |
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102 | |||
103 | |||
104 | /// <summary> |
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105 | /// Instantiate an HTTP server. |
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106 | /// </summary> |
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107 | public OSHttpServer(IPAddress address, int port, int poolSize) |
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108 | { |
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109 | _engineId = String.Format("OSHttpServer (HTTP:{0})", port); |
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110 | _isSecure = false; |
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111 | _log.DebugFormat("[{0}] HTTP server instantiated", EngineID); |
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112 | |||
113 | _listener = new HttpListener(address, port); |
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114 | _queue = new OSHttpRequestQueue(); |
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115 | _pumps = OSHttpRequestPump.Pumps(this, _queue, poolSize); |
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116 | } |
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117 | |||
118 | /// <summary> |
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119 | /// Instantiate an HTTPS server. |
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120 | /// </summary> |
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121 | public OSHttpServer(IPAddress address, int port, X509Certificate certificate, int poolSize) |
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122 | { |
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123 | _engineId = String.Format("OSHttpServer [HTTPS:{0}/ps:{1}]", port, poolSize); |
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124 | _isSecure = true; |
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125 | _log.DebugFormat("[{0}] HTTPS server instantiated", EngineID); |
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126 | |||
127 | _listener = new HttpListener(address, port, certificate); |
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128 | _queue = new OSHttpRequestQueue(); |
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129 | _pumps = OSHttpRequestPump.Pumps(this, _queue, poolSize); |
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130 | } |
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131 | |||
132 | /// <summary> |
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133 | /// Turn an HttpRequest into an OSHttpRequestItem and place it |
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134 | /// in the queue. The OSHttpRequestQueue object will pulse the |
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135 | /// next available idle pump. |
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136 | /// </summary> |
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137 | protected void OnHttpRequest(HttpClientContext client, HttpRequest request) |
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138 | { |
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139 | // turn request into OSHttpRequest |
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140 | OSHttpRequest req = new OSHttpRequest(client, request); |
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141 | |||
142 | // place OSHttpRequest into _httpRequestQueue, will |
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143 | // trigger Pulse to idle waiting pumps |
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144 | _queue.Enqueue(req); |
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145 | } |
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146 | |||
147 | /// <summary> |
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148 | /// Start the HTTP server engine. |
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149 | /// </summary> |
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150 | public void Start() |
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151 | { |
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152 | _engine = new Thread(new ThreadStart(Engine)); |
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153 | _engine.Name = _engineId; |
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154 | _engine.IsBackground = true; |
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155 | _engine.Start(); |
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156 | |||
157 | ThreadTracker.Add(_engine); |
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158 | |||
159 | // start the pumps... |
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160 | for (int i = 0; i < _pumps.Length; i++) |
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161 | _pumps[i].Start(); |
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162 | } |
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163 | |||
164 | public void Stop() |
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165 | { |
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166 | lock (_syncObject) Monitor.Pulse(_syncObject); |
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167 | } |
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168 | |||
169 | /// <summary> |
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170 | /// Engine keeps the HTTP server running. |
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171 | /// </summary> |
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172 | private void Engine() |
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173 | { |
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174 | try { |
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175 | _listener.RequestHandler += OnHttpRequest; |
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176 | _listener.Start(QueueSize); |
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177 | _log.InfoFormat("[{0}] HTTP server started", EngineID); |
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178 | |||
179 | lock (_syncObject) Monitor.Wait(_syncObject); |
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180 | } |
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181 | catch (Exception ex) |
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182 | { |
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183 | _log.DebugFormat("[{0}] HTTP server startup failed: {1}", EngineID, ex.ToString()); |
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184 | } |
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185 | |||
186 | _log.InfoFormat("[{0}] HTTP server terminated", EngineID); |
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187 | } |
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188 | |||
189 | |||
190 | /// <summary> |
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191 | /// Add an HTTP request handler. |
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192 | /// </summary> |
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193 | /// <param name="handler">OSHttpHandler delegate</param> |
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194 | /// <param name="path">regex object for path matching</parm> |
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195 | /// <param name="headers">dictionary containing header names |
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196 | /// and regular expressions to match against header values</param> |
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197 | public void AddHandler(OSHttpHandler handler) |
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198 | { |
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199 | lock (_httpHandlers) |
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200 | { |
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201 | if (_httpHandlers.Contains(handler)) |
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202 | { |
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203 | _log.DebugFormat("[OSHttpServer] attempt to add already existing handler ignored"); |
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204 | return; |
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205 | } |
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206 | _httpHandlers.Add(handler); |
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207 | } |
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208 | } |
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209 | } |
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210 | } |