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 log4net; |
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29 | using Mono.Addins; |
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30 | using Nini.Config; |
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31 | using System; |
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32 | using System.Collections.Generic; |
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33 | using System.Reflection; |
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34 | using OpenSim.Framework; |
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35 | |||
36 | using OpenSim.Server.Base; |
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37 | using OpenSim.Region.Framework.Interfaces; |
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38 | using OpenSim.Region.Framework.Scenes; |
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39 | using OpenSim.Services.Interfaces; |
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40 | using OpenMetaverse; |
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41 | |||
42 | namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Asset |
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43 | { |
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44 | [Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "HGAssetBroker")] |
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45 | public class HGAssetBroker : ISharedRegionModule, IAssetService |
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46 | { |
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47 | private static readonly ILog m_log = |
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48 | LogManager.GetLogger( |
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49 | MethodBase.GetCurrentMethod().DeclaringType); |
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50 | |||
51 | private IImprovedAssetCache m_Cache = null; |
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52 | private IAssetService m_GridService; |
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53 | private IAssetService m_HGService; |
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54 | |||
55 | private Scene m_aScene; |
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56 | private string m_LocalAssetServiceURI; |
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57 | |||
58 | private bool m_Enabled = false; |
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59 | |||
60 | private AssetPermissions m_AssetPerms; |
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61 | |||
62 | public Type ReplaceableInterface |
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63 | { |
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64 | get { return null; } |
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65 | } |
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66 | |||
67 | public string Name |
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68 | { |
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69 | get { return "HGAssetBroker"; } |
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70 | } |
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71 | |||
72 | public void Initialise(IConfigSource source) |
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73 | { |
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74 | IConfig moduleConfig = source.Configs["Modules"]; |
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75 | if (moduleConfig != null) |
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76 | { |
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77 | string name = moduleConfig.GetString("AssetServices", ""); |
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78 | if (name == Name) |
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79 | { |
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80 | IConfig assetConfig = source.Configs["AssetService"]; |
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81 | if (assetConfig == null) |
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82 | { |
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83 | m_log.Error("[HG ASSET CONNECTOR]: AssetService missing from OpenSim.ini"); |
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84 | return; |
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85 | } |
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86 | |||
87 | string localDll = assetConfig.GetString("LocalGridAssetService", |
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88 | String.Empty); |
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89 | string HGDll = assetConfig.GetString("HypergridAssetService", |
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90 | String.Empty); |
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91 | |||
92 | if (localDll == String.Empty) |
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93 | { |
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94 | m_log.Error("[HG ASSET CONNECTOR]: No LocalGridAssetService named in section AssetService"); |
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95 | return; |
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96 | } |
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97 | |||
98 | if (HGDll == String.Empty) |
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99 | { |
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100 | m_log.Error("[HG ASSET CONNECTOR]: No HypergridAssetService named in section AssetService"); |
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101 | return; |
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102 | } |
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103 | |||
104 | Object[] args = new Object[] { source }; |
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105 | m_GridService = |
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106 | ServerUtils.LoadPlugin<IAssetService>(localDll, |
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107 | args); |
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108 | |||
109 | m_HGService = |
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110 | ServerUtils.LoadPlugin<IAssetService>(HGDll, |
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111 | args); |
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112 | |||
113 | if (m_GridService == null) |
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114 | { |
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115 | m_log.Error("[HG ASSET CONNECTOR]: Can't load local asset service"); |
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116 | return; |
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117 | } |
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118 | if (m_HGService == null) |
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119 | { |
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120 | m_log.Error("[HG ASSET CONNECTOR]: Can't load hypergrid asset service"); |
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121 | return; |
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122 | } |
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123 | |||
124 | m_LocalAssetServiceURI = assetConfig.GetString("AssetServerURI", string.Empty); |
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125 | if (m_LocalAssetServiceURI == string.Empty) |
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126 | { |
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127 | IConfig netConfig = source.Configs["Network"]; |
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128 | m_LocalAssetServiceURI = netConfig.GetString("asset_server_url", string.Empty); |
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129 | } |
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130 | |||
131 | if (m_LocalAssetServiceURI != string.Empty) |
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132 | m_LocalAssetServiceURI = m_LocalAssetServiceURI.Trim('/'); |
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133 | |||
134 | IConfig hgConfig = source.Configs["HGAssetService"]; |
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135 | m_AssetPerms = new AssetPermissions(hgConfig); // it's ok if arg is null |
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136 | |||
137 | m_Enabled = true; |
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138 | m_log.Info("[HG ASSET CONNECTOR]: HG asset broker enabled"); |
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139 | } |
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140 | } |
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141 | } |
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142 | |||
143 | public void PostInitialise() |
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144 | { |
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145 | } |
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146 | |||
147 | public void Close() |
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148 | { |
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149 | } |
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150 | |||
151 | public void AddRegion(Scene scene) |
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152 | { |
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153 | if (!m_Enabled) |
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154 | return; |
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155 | |||
156 | m_aScene = scene; |
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157 | |||
158 | m_aScene.RegisterModuleInterface<IAssetService>(this); |
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159 | } |
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160 | |||
161 | public void RemoveRegion(Scene scene) |
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162 | { |
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163 | } |
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164 | |||
165 | public void RegionLoaded(Scene scene) |
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166 | { |
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167 | if (!m_Enabled) |
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168 | return; |
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169 | |||
170 | if (m_Cache == null) |
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171 | { |
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172 | m_Cache = scene.RequestModuleInterface<IImprovedAssetCache>(); |
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173 | |||
174 | if (!(m_Cache is ISharedRegionModule)) |
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175 | m_Cache = null; |
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176 | } |
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177 | |||
178 | m_log.InfoFormat("[HG ASSET CONNECTOR]: Enabled hypergrid asset broker for region {0}", scene.RegionInfo.RegionName); |
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179 | |||
180 | if (m_Cache != null) |
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181 | { |
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182 | m_log.InfoFormat("[HG ASSET CONNECTOR]: Enabled asset caching for region {0}", scene.RegionInfo.RegionName); |
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183 | } |
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184 | } |
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185 | |||
186 | private bool IsHG(string id) |
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187 | { |
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188 | Uri assetUri; |
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189 | |||
190 | if (Uri.TryCreate(id, UriKind.Absolute, out assetUri) && |
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191 | assetUri.Scheme == Uri.UriSchemeHttp) |
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192 | return true; |
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193 | |||
194 | return false; |
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195 | } |
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196 | |||
197 | public AssetBase Get(string id) |
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198 | { |
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199 | //m_log.DebugFormat("[HG ASSET CONNECTOR]: Get {0}", id); |
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200 | AssetBase asset = null; |
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201 | |||
202 | if (m_Cache != null) |
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203 | { |
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204 | asset = m_Cache.Get(id); |
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205 | |||
206 | if (asset != null) |
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207 | return asset; |
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208 | } |
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209 | |||
210 | if (IsHG(id)) |
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211 | { |
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212 | asset = m_HGService.Get(id); |
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213 | if (asset != null) |
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214 | { |
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215 | // Now store it locally, if allowed |
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216 | if (m_AssetPerms.AllowedImport(asset.Type)) |
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217 | m_GridService.Store(asset); |
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218 | else |
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219 | return null; |
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220 | } |
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221 | } |
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222 | else |
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223 | asset = m_GridService.Get(id); |
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224 | |||
225 | if (m_Cache != null) |
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226 | m_Cache.Cache(asset); |
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227 | |||
228 | return asset; |
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229 | } |
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230 | |||
231 | public AssetBase GetCached(string id) |
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232 | { |
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233 | if (m_Cache != null) |
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234 | return m_Cache.Get(id); |
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235 | |||
236 | return null; |
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237 | } |
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238 | |||
239 | public AssetMetadata GetMetadata(string id) |
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240 | { |
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241 | AssetBase asset = null; |
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242 | |||
243 | if (m_Cache != null) |
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244 | { |
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245 | if (m_Cache != null) |
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246 | m_Cache.Get(id); |
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247 | |||
248 | if (asset != null) |
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249 | return asset.Metadata; |
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250 | } |
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251 | |||
252 | AssetMetadata metadata; |
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253 | |||
254 | if (IsHG(id)) |
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255 | metadata = m_HGService.GetMetadata(id); |
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256 | else |
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257 | metadata = m_GridService.GetMetadata(id); |
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258 | |||
259 | return metadata; |
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260 | } |
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261 | |||
262 | public byte[] GetData(string id) |
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263 | { |
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264 | AssetBase asset = null; |
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265 | |||
266 | if (m_Cache != null) |
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267 | { |
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268 | if (m_Cache != null) |
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269 | m_Cache.Get(id); |
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270 | |||
271 | if (asset != null) |
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272 | return asset.Data; |
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273 | } |
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274 | |||
275 | if (IsHG(id)) |
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276 | return m_HGService.GetData(id); |
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277 | else |
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278 | return m_GridService.GetData(id); |
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279 | |||
280 | } |
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281 | |||
282 | public bool Get(string id, Object sender, AssetRetrieved handler) |
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283 | { |
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284 | AssetBase asset = null; |
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285 | |||
286 | if (m_Cache != null) |
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287 | asset = m_Cache.Get(id); |
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288 | |||
289 | if (asset != null) |
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290 | { |
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291 | Util.FireAndForget(delegate { handler(id, sender, asset); }); |
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292 | return true; |
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293 | } |
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294 | |||
295 | if (IsHG(id)) |
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296 | { |
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297 | return m_HGService.Get(id, sender, delegate (string assetID, Object s, AssetBase a) |
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298 | { |
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299 | if (m_Cache != null) |
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300 | m_Cache.Cache(a); |
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301 | handler(assetID, s, a); |
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302 | }); |
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303 | } |
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304 | else |
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305 | { |
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306 | return m_GridService.Get(id, sender, delegate (string assetID, Object s, AssetBase a) |
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307 | { |
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308 | if (m_Cache != null) |
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309 | m_Cache.Cache(a); |
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310 | handler(assetID, s, a); |
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311 | }); |
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312 | } |
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313 | } |
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314 | |||
315 | public string Store(AssetBase asset) |
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316 | { |
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317 | bool isHG = IsHG(asset.ID); |
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318 | |||
319 | if ((m_Cache != null) && !isHG) |
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320 | // Don't store it in the cache if the asset is to |
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321 | // be sent to the other grid, because this is already |
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322 | // a copy of the local asset. |
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323 | m_Cache.Cache(asset); |
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324 | |||
325 | if (asset.Local) |
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326 | { |
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327 | if (m_Cache != null) |
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328 | m_Cache.Cache(asset); |
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329 | return asset.ID; |
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330 | } |
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331 | |||
332 | string id = string.Empty; |
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333 | if (IsHG(asset.ID)) |
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334 | { |
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335 | if (m_AssetPerms.AllowedExport(asset.Type)) |
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336 | id = m_HGService.Store(asset); |
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337 | else |
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338 | return String.Empty; |
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339 | } |
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340 | else |
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341 | id = m_GridService.Store(asset); |
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342 | |||
343 | if (id != String.Empty) |
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344 | { |
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345 | // Placing this here, so that this work with old asset servers that don't send any reply back |
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346 | // SynchronousRestObjectRequester returns somethins that is not an empty string |
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347 | if (id != null) |
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348 | asset.ID = id; |
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349 | |||
350 | if (m_Cache != null) |
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351 | m_Cache.Cache(asset); |
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352 | } |
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353 | return id; |
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354 | |||
355 | } |
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356 | |||
357 | public bool UpdateContent(string id, byte[] data) |
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358 | { |
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359 | AssetBase asset = null; |
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360 | |||
361 | if (m_Cache != null) |
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362 | asset = m_Cache.Get(id); |
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363 | |||
364 | if (asset != null) |
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365 | { |
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366 | asset.Data = data; |
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367 | m_Cache.Cache(asset); |
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368 | } |
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369 | |||
370 | if (IsHG(id)) |
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371 | return m_HGService.UpdateContent(id, data); |
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372 | else |
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373 | return m_GridService.UpdateContent(id, data); |
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374 | } |
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375 | |||
376 | public bool Delete(string id) |
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377 | { |
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378 | if (m_Cache != null) |
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379 | m_Cache.Expire(id); |
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380 | |||
381 | bool result = false; |
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382 | if (IsHG(id)) |
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383 | result = m_HGService.Delete(id); |
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384 | else |
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385 | result = m_GridService.Delete(id); |
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386 | |||
387 | if (result && m_Cache != null) |
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388 | m_Cache.Expire(id); |
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389 | |||
390 | return result; |
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391 | } |
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392 | |||
393 | } |
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394 | } |