1 | using System.Collections.Generic; |
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2 | using System.Collections.ObjectModel; |
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3 | using System.IO; |
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4 | using System.Xml; |
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5 | using UniLinq; |
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6 | |
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7 | namespace AllocsFixes.NetConnections.Servers.Web { |
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8 | public class WebPermissions { |
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9 | private const string PERMISSIONS_FILE = "webpermissions.xml"; |
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10 | private static WebPermissions instance; |
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11 | private readonly WebModulePermission defaultModulePermission = new WebModulePermission ("", 0); |
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12 | |
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13 | private readonly Dictionary<string, WebModulePermission> knownModules = |
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14 | new CaseInsensitiveStringDictionary<WebModulePermission> (); |
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15 | |
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16 | private readonly Dictionary<string, AdminToken> admintokens = new CaseInsensitiveStringDictionary<AdminToken> (); |
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17 | private FileSystemWatcher fileWatcher; |
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18 | |
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19 | private readonly Dictionary<string, WebModulePermission> modules = new CaseInsensitiveStringDictionary<WebModulePermission> (); |
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20 | |
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21 | public WebPermissions () { |
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22 | allModulesList = new List<WebModulePermission> (); |
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23 | allModulesListRO = new ReadOnlyCollection<WebModulePermission> (allModulesList); |
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24 | Directory.CreateDirectory (GetFilePath ()); |
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25 | InitFileWatcher (); |
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26 | Load (); |
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27 | } |
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28 | |
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29 | public static WebPermissions Instance { |
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30 | get { |
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31 | lock (typeof (WebPermissions)) { |
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32 | if (instance == null) { |
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33 | instance = new WebPermissions (); |
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34 | } |
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35 | |
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36 | return instance; |
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37 | } |
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38 | } |
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39 | } |
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40 | |
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41 | public bool ModuleAllowedWithLevel (string _module, int _level) { |
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42 | WebModulePermission permInfo = GetModulePermission (_module); |
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43 | return permInfo.permissionLevel >= _level; |
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44 | } |
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45 | |
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46 | public AdminToken GetWebAdmin (string _name, string _token) { |
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47 | if (IsAdmin (_name) && admintokens [_name].token == _token) { |
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48 | return admintokens [_name]; |
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49 | } |
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50 | |
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51 | return null; |
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52 | } |
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53 | |
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54 | public WebModulePermission GetModulePermission (string _module) { |
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55 | WebModulePermission result; |
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56 | if (modules.TryGetValue (_module, out result)) { |
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57 | return result; |
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58 | } |
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59 | |
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60 | if (knownModules.TryGetValue (_module, out result)) { |
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61 | return result; |
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62 | } |
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63 | |
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64 | return defaultModulePermission; |
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65 | } |
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66 | |
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67 | |
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68 | // Admins |
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69 | public void AddAdmin (string _name, string _token, int _permissionLevel, bool _save = true) { |
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70 | AdminToken c = new AdminToken (_name, _token, _permissionLevel); |
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71 | lock (this) { |
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72 | admintokens [_name] = c; |
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73 | if (_save) { |
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74 | Save (); |
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75 | } |
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76 | } |
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77 | } |
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78 | |
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79 | public void RemoveAdmin (string _name, bool _save = true) { |
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80 | lock (this) { |
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81 | admintokens.Remove (_name); |
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82 | if (_save) { |
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83 | Save (); |
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84 | } |
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85 | } |
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86 | } |
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87 | |
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88 | public bool IsAdmin (string _name) { |
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89 | return admintokens.ContainsKey (_name); |
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90 | } |
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91 | |
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92 | public AdminToken[] GetAdmins () { |
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93 | AdminToken[] result = new AdminToken[admintokens.Count]; |
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94 | admintokens.CopyValuesTo (result); |
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95 | return result; |
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96 | } |
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97 | |
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98 | |
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99 | // Commands |
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100 | public void AddModulePermission (string _module, int _permissionLevel, bool _save = true) { |
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101 | WebModulePermission p = new WebModulePermission (_module, _permissionLevel); |
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102 | lock (this) { |
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103 | allModulesList.Clear (); |
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104 | modules [_module] = p; |
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105 | if (_save) { |
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106 | Save (); |
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107 | } |
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108 | } |
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109 | } |
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110 | |
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111 | public void AddKnownModule (string _module, int _defaultPermission) { |
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112 | if (string.IsNullOrEmpty (_module)) { |
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113 | return; |
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114 | } |
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115 | |
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116 | WebModulePermission p = new WebModulePermission (_module, _defaultPermission); |
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117 | |
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118 | lock (this) { |
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119 | allModulesList.Clear (); |
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120 | knownModules [_module] = p; |
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121 | } |
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122 | } |
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123 | |
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124 | public bool IsKnownModule (string _module) { |
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125 | if (string.IsNullOrEmpty (_module)) { |
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126 | return false; |
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127 | } |
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128 | |
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129 | lock (this) { |
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130 | return knownModules.ContainsKey (_module); |
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131 | } |
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132 | |
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133 | } |
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134 | |
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135 | public void RemoveModulePermission (string _module, bool _save = true) { |
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136 | lock (this) { |
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137 | allModulesList.Clear (); |
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138 | modules.Remove (_module); |
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139 | if (_save) { |
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140 | Save (); |
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141 | } |
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142 | } |
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143 | } |
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144 | |
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145 | private readonly List<WebModulePermission> allModulesList; |
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146 | private readonly ReadOnlyCollection<WebModulePermission> allModulesListRO; |
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147 | |
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148 | public IList<WebModulePermission> GetModules () { |
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149 | if (allModulesList.Count == 0) { |
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150 | foreach (KeyValuePair<string, WebModulePermission> kvp in knownModules) { |
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151 | if (modules.ContainsKey (kvp.Key)) { |
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152 | allModulesList.Add (modules [kvp.Key]); |
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153 | } else { |
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154 | allModulesList.Add (kvp.Value); |
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155 | } |
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156 | } |
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157 | } |
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158 | |
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159 | return allModulesListRO; |
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160 | } |
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161 | |
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162 | |
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163 | //IO Tasks |
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164 | |
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165 | private void InitFileWatcher () { |
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166 | fileWatcher = new FileSystemWatcher (GetFilePath (), GetFileName ()); |
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167 | fileWatcher.Changed += OnFileChanged; |
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168 | fileWatcher.Created += OnFileChanged; |
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169 | fileWatcher.Deleted += OnFileChanged; |
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170 | fileWatcher.EnableRaisingEvents = true; |
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171 | } |
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172 | |
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173 | private void OnFileChanged (object source, FileSystemEventArgs e) { |
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174 | Log.Out ("Reloading " + PERMISSIONS_FILE); |
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175 | Load (); |
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176 | } |
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177 | |
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178 | private string GetFilePath () { |
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179 | return GamePrefs.GetString (EnumGamePrefs.SaveGameFolder); |
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180 | } |
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181 | |
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182 | private string GetFileName () { |
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183 | return PERMISSIONS_FILE; |
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184 | } |
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185 | |
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186 | private string GetFullPath () { |
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187 | return GetFilePath () + "/" + GetFileName (); |
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188 | } |
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189 | |
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190 | public void Load () { |
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191 | admintokens.Clear (); |
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192 | modules.Clear (); |
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193 | |
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194 | if (!Utils.FileExists (GetFullPath ())) { |
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195 | Log.Out (string.Format ("Permissions file '{0}' not found, creating.", GetFileName ())); |
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196 | Save (); |
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197 | return; |
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198 | } |
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199 | |
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200 | Log.Out (string.Format ("Loading permissions file at '{0}'", GetFullPath ())); |
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201 | |
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202 | XmlDocument xmlDoc = new XmlDocument (); |
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203 | |
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204 | try { |
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205 | xmlDoc.Load (GetFullPath ()); |
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206 | } catch (XmlException e) { |
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207 | Log.Error ("Failed loading permissions file: " + e.Message); |
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208 | return; |
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209 | } |
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210 | |
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211 | XmlNode adminToolsNode = xmlDoc.DocumentElement; |
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212 | |
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213 | if (adminToolsNode == null) { |
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214 | Log.Error ("Failed loading permissions file: No DocumentElement found"); |
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215 | return; |
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216 | } |
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217 | |
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218 | foreach (XmlNode childNode in adminToolsNode.ChildNodes) { |
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219 | if (childNode.Name == "admintokens") { |
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220 | foreach (XmlNode subChild in childNode.ChildNodes) { |
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221 | if (subChild.NodeType == XmlNodeType.Comment) { |
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222 | continue; |
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223 | } |
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224 | |
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225 | if (subChild.NodeType != XmlNodeType.Element) { |
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226 | Log.Warning ("Unexpected XML node found in 'admintokens' section: " + subChild.OuterXml); |
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227 | continue; |
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228 | } |
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229 | |
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230 | XmlElement lineItem = (XmlElement) subChild; |
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231 | |
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232 | if (!lineItem.HasAttribute ("name")) { |
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233 | Log.Warning ("Ignoring admintoken-entry because of missing 'name' attribute: " + |
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234 | subChild.OuterXml); |
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235 | continue; |
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236 | } |
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237 | |
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238 | if (!lineItem.HasAttribute ("token")) { |
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239 | Log.Warning ("Ignoring admintoken-entry because of missing 'token' attribute: " + |
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240 | subChild.OuterXml); |
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241 | continue; |
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242 | } |
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243 | |
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244 | if (!lineItem.HasAttribute ("permission_level")) { |
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245 | Log.Warning ("Ignoring admintoken-entry because of missing 'permission_level' attribute: " + |
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246 | subChild.OuterXml); |
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247 | continue; |
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248 | } |
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249 | |
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250 | string name = lineItem.GetAttribute ("name"); |
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251 | string token = lineItem.GetAttribute ("token"); |
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252 | int permissionLevel; |
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253 | if (!int.TryParse (lineItem.GetAttribute ("permission_level"), out permissionLevel)) { |
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254 | Log.Warning ( |
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255 | "Ignoring admintoken-entry because of invalid (non-numeric) value for 'permission_level' attribute: " + |
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256 | subChild.OuterXml); |
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257 | continue; |
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258 | } |
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259 | |
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260 | AddAdmin (name, token, permissionLevel, false); |
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261 | } |
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262 | } |
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263 | |
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264 | if (childNode.Name == "permissions") { |
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265 | foreach (XmlNode subChild in childNode.ChildNodes) { |
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266 | if (subChild.NodeType == XmlNodeType.Comment) { |
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267 | continue; |
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268 | } |
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269 | |
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270 | if (subChild.NodeType != XmlNodeType.Element) { |
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271 | Log.Warning ("Unexpected XML node found in 'permissions' section: " + subChild.OuterXml); |
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272 | continue; |
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273 | } |
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274 | |
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275 | XmlElement lineItem = (XmlElement) subChild; |
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276 | |
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277 | if (!lineItem.HasAttribute ("module")) { |
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278 | Log.Warning ("Ignoring permission-entry because of missing 'module' attribute: " + |
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279 | subChild.OuterXml); |
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280 | continue; |
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281 | } |
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282 | |
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283 | if (!lineItem.HasAttribute ("permission_level")) { |
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284 | Log.Warning ("Ignoring permission-entry because of missing 'permission_level' attribute: " + |
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285 | subChild.OuterXml); |
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286 | continue; |
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287 | } |
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288 | |
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289 | int permissionLevel; |
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290 | if (!int.TryParse (lineItem.GetAttribute ("permission_level"), out permissionLevel)) { |
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291 | Log.Warning ( |
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292 | "Ignoring permission-entry because of invalid (non-numeric) value for 'permission_level' attribute: " + |
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293 | subChild.OuterXml); |
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294 | continue; |
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295 | } |
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296 | |
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297 | AddModulePermission (lineItem.GetAttribute ("module"), permissionLevel, false); |
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298 | } |
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299 | } |
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300 | } |
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301 | |
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302 | Log.Out ("Loading permissions file done."); |
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303 | } |
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304 | |
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305 | public void Save () { |
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306 | fileWatcher.EnableRaisingEvents = false; |
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307 | |
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308 | using (StreamWriter sw = new StreamWriter (GetFullPath ())) { |
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309 | sw.WriteLine ("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); |
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310 | sw.WriteLine ("<webpermissions>"); |
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311 | sw.WriteLine (); |
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312 | sw.WriteLine (" <admintokens>"); |
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313 | sw.WriteLine ( |
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314 | " <!-- <token name=\"adminuser1\" token=\"supersecrettoken\" permission_level=\"0\" /> -->"); |
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315 | foreach (KeyValuePair<string, AdminToken> kvp in admintokens) { |
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316 | sw.WriteLine (" <token name=\"{0}\" token=\"{1}\" permission_level=\"{2}\" />", kvp.Value.name, |
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317 | kvp.Value.token, kvp.Value.permissionLevel); |
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318 | } |
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319 | |
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320 | sw.WriteLine (" </admintokens>"); |
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321 | sw.WriteLine (); |
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322 | sw.WriteLine (" <permissions>"); |
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323 | foreach (KeyValuePair<string, WebModulePermission> kvp in modules) { |
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324 | sw.WriteLine (" <permission module=\"{0}\" permission_level=\"{1}\" />", kvp.Value.module, |
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325 | kvp.Value.permissionLevel); |
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326 | } |
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327 | |
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328 | sw.WriteLine (" <!-- <permission module=\"web.map\" permission_level=\"1000\" /> -->"); |
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329 | sw.WriteLine (); |
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330 | sw.WriteLine (" <!-- <permission module=\"webapi.getlog\" permission_level=\"0\" /> -->"); |
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331 | sw.WriteLine ( |
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332 | " <!-- <permission module=\"webapi.executeconsolecommand\" permission_level=\"0\" /> -->"); |
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333 | sw.WriteLine (); |
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334 | sw.WriteLine (" <!-- <permission module=\"webapi.getstats\" permission_level=\"1000\" /> -->"); |
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335 | sw.WriteLine (" <!-- <permission module=\"webapi.getplayersonline\" permission_level=\"1000\" /> -->"); |
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336 | sw.WriteLine (); |
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337 | sw.WriteLine ( |
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338 | " <!-- <permission module=\"webapi.getplayerslocation\" permission_level=\"1000\" /> -->"); |
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339 | sw.WriteLine (" <!-- <permission module=\"webapi.viewallplayers\" permission_level=\"1\" /> -->"); |
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340 | sw.WriteLine (); |
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341 | sw.WriteLine (" <!-- <permission module=\"webapi.getlandclaims\" permission_level=\"1000\" /> -->"); |
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342 | sw.WriteLine (" <!-- <permission module=\"webapi.viewallclaims\" permission_level=\"1\" /> -->"); |
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343 | sw.WriteLine (); |
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344 | sw.WriteLine (" <!-- <permission module=\"webapi.getplayerinventory\" permission_level=\"1\" /> -->"); |
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345 | sw.WriteLine (); |
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346 | sw.WriteLine (" <!-- <permission module=\"webapi.gethostilelocation\" permission_level=\"1\" /> -->"); |
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347 | sw.WriteLine (" <!-- <permission module=\"webapi.getanimalslocation\" permission_level=\"1\" /> -->"); |
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348 | sw.WriteLine (" </permissions>"); |
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349 | sw.WriteLine (); |
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350 | sw.WriteLine ("</webpermissions>"); |
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351 | |
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352 | sw.Flush (); |
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353 | sw.Close (); |
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354 | } |
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355 | |
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356 | fileWatcher.EnableRaisingEvents = true; |
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357 | } |
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358 | |
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359 | |
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360 | public class AdminToken { |
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361 | public string name; |
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362 | public int permissionLevel; |
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363 | public string token; |
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364 | |
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365 | public AdminToken (string _name, string _token, int _permissionLevel) { |
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366 | name = _name; |
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367 | token = _token; |
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368 | permissionLevel = _permissionLevel; |
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369 | } |
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370 | } |
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371 | |
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372 | public struct WebModulePermission { |
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373 | public string module; |
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374 | public int permissionLevel; |
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375 | |
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376 | public WebModulePermission (string _module, int _permissionLevel) { |
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377 | module = _module; |
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378 | permissionLevel = _permissionLevel; |
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379 | } |
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380 | } |
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381 | } |
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382 | } |
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