mcs/class/System.Web/System.Web.Configuration_2.0/WebConfigurationManager.cs

   1 //
   2 // System.Web.Configuration.WebConfigurationManager.cs
   3 //
   4 // Authors:
   5 //      Lluis Sanchez Gual (lluis@novell.com)
   6 //      Chris Toshok (toshok@ximian.com)
   7 //
   8 // Permission is hereby granted, free of charge, to any person obtaining
   9 // a copy of this software and associated documentation files (the
  10 // "Software"), to deal in the Software without restriction, including
  11 // without limitation the rights to use, copy, modify, merge, publish,
  12 // distribute, sublicense, and/or sell copies of the Software, and to
  13 // permit persons to whom the Software is furnished to do so, subject to
  14 // the following conditions:
  15 //
  16 // The above copyright notice and this permission notice shall be
  17 // included in all copies or substantial portions of the Software.
  18 //
  19 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  20 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  22 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  23 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  24 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  25 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26 //
  27 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
  28 //
  29
  30 #if NET_2_0
  31
  32 using System;
  33 using System.IO;
  34 using System.Collections;
  35 using System.Collections.Specialized;
  36 using System.Reflection;
  37 using System.Xml;
  38 using System.Configuration;
  39 using System.Configuration.Internal;
  40 using _Configuration = System.Configuration.Configuration;
  41
  42 namespace System.Web.Configuration {
  43
  44         public static class WebConfigurationManager
  45         {
  46 #if !TARGET_J2EE
  47                 static IInternalConfigConfigurationFactory configFactory;
  48                 static Hashtable configurations = new Hashtable ();
  49 #else
  50                 static internal IInternalConfigConfigurationFactory configFactory
  51                 {
  52                         get{
  53                                 IInternalConfigConfigurationFactory factory = (IInternalConfigConfigurationFactory)AppDomain.CurrentDomain.GetData("WebConfigurationManager.configFactory");
  54                                 if (factory == null){
  55                                         lock (AppDomain.CurrentDomain){
  56                                                 object initialized = AppDomain.CurrentDomain.GetData("WebConfigurationManager.configFactory.initialized");
  57                                                 if (initialized == null){
  58                                                         PropertyInfo prop = typeof(ConfigurationManager).GetProperty("ConfigurationFactory", BindingFlags.Static | BindingFlags.NonPublic);
  59                                                         if (prop != null){
  60                                                                 factory = prop.GetValue(null, null) as IInternalConfigConfigurationFactory;
  61                                                                 configFactory = factory;
  62                                                         }
  63                                                 }
  64                                         }
  65                                 }
  66                                 return factory != null ? factory : configFactory;
  67                         }
  68                         set{
  69                                 AppDomain.CurrentDomain.SetData("WebConfigurationManager.configFactory", value);
  70                                 AppDomain.CurrentDomain.SetData("WebConfigurationManager.configFactory.initialized", true);
  71                         }
  72                 }
  73
  74                 static internal Hashtable configurations
  75                 {
  76                         get{
  77                                 Hashtable table = (Hashtable)AppDomain.CurrentDomain.GetData("WebConfigurationManager.configurations");
  78                                 if (table == null){
  79                                         lock (AppDomain.CurrentDomain){
  80                                                 object initialized = AppDomain.CurrentDomain.GetData("WebConfigurationManager.configurations.initialized");
  81                                                 if (initialized == null){
  82                                                         table = new Hashtable();
  83                                                         configurations = table;
  84                                                 }
  85                                         }
  86                                 }
  87                                 return table != null ? table : configurations;
  88
  89                         }
  90                         set{
  91                                 AppDomain.CurrentDomain.SetData("WebConfigurationManager.configurations", value);
  92                                 AppDomain.CurrentDomain.SetData("WebConfigurationManager.configurations.initialized", true);
  93                         }
  94                 }
  95 #endif
  96
  97                 static internal ArrayList extra_assemblies = null;
  98                 static internal ArrayList ExtraAssemblies {
  99                         get {
 100                                 if (extra_assemblies == null)
 101                                         extra_assemblies = new ArrayList();
 102                                 return extra_assemblies;
 103                         }
 104                 }
 105
 106                 static WebConfigurationManager ()
 107                 {
 108                         PropertyInfo prop = typeof(ConfigurationManager).GetProperty ("ConfigurationFactory", BindingFlags.Static | BindingFlags.NonPublic);
 109                         if (prop != null)
 110                                 configFactory = prop.GetValue (null, null) as IInternalConfigConfigurationFactory;
 111                 }
 112
 113                 public static _Configuration OpenMachineConfiguration ()
 114                 {
 115                         return ConfigurationManager.OpenMachineConfiguration ();
 116                 }
 117
 118                 [MonoTODO ("need to handle locationSubPath")]
 119                 public static _Configuration OpenMachineConfiguration (string locationSubPath)
 120                 {
 121                         return OpenMachineConfiguration ();
 122                 }
 123
 124                 [MonoTODO("Mono does not support remote configuration")]
 125                 public static _Configuration OpenMachineConfiguration (string locationSubPath,
 126                                                                        string server)
 127                 {
 128                         if (server == null)
 129                                 return OpenMachineConfiguration (locationSubPath);
 130
 131                         throw new NotSupportedException ("Mono doesn't support remote configuration");
 132                 }
 133
 134                 [MonoTODO("Mono does not support remote configuration")]
 135                 public static _Configuration OpenMachineConfiguration (string locationSubPath,
 136                                                                        string server,
 137                                                                        IntPtr userToken)
 138                 {
 139                         if (server == null)
 140                                 return OpenMachineConfiguration (locationSubPath);
 141                         throw new NotSupportedException ("Mono doesn't support remote configuration");
 142                 }
 143
 144                 [MonoTODO("Mono does not support remote configuration")]
 145                 public static _Configuration OpenMachineConfiguration (string locationSubPath,
 146                                                                        string server,
 147                                                                        string userName,
 148                                                                        string password)
 149                 {
 150                         if (server == null)
 151                                 return OpenMachineConfiguration (locationSubPath);
 152                         throw new NotSupportedException ("Mono doesn't support remote configuration");
 153                 }
 154
 155                 public static _Configuration OpenWebConfiguration (string path)
 156                 {
 157                         return OpenWebConfiguration (path, null, null, null, null, null);
 158                 }
 159
 160                 public static _Configuration OpenWebConfiguration (string path, string site)
 161                 {
 162                         return OpenWebConfiguration (path, site, null, null, null, null);
 163                 }
 164
 165                 public static _Configuration OpenWebConfiguration (string path, string site, string locationSubPath)
 166                 {
 167                         return OpenWebConfiguration (path, site, locationSubPath, null, null, null);
 168                 }
 169
 170                 public static _Configuration OpenWebConfiguration (string path, string site, string locationSubPath, string server)
 171                 {
 172                         return OpenWebConfiguration (path, site, locationSubPath, server, null, null);
 173                 }
 174
 175                 public static _Configuration OpenWebConfiguration (string path, string site, string locationSubPath, string server, IntPtr userToken)
 176                 {
 177                         return OpenWebConfiguration (path, site, locationSubPath, server, null, null);
 178                 }
 179
 180                 public static _Configuration OpenWebConfiguration (string path, string site, string locationSubPath, string server, string userName, string password)
 181                 {
 182                         if (path == null)
 183                                 path = "";
 184
 185                         string basePath = GetBasePath (path);
 186                         _Configuration conf;
 187
 188
 189                         lock (configurations) {
 190                                 conf = (_Configuration) configurations [basePath];
 191                                 if (conf == null) {
 192                                         conf = ConfigurationFactory.Create (typeof(WebConfigurationHost), null, basePath, site, locationSubPath, server, userName, password);
 193                                         configurations [basePath] = conf;
 194                                 }
 195                         }
 196                         if (basePath.Length < path.Length) {
 197
 198                                 // If the path has a file name, look for a location specific configuration
 199
 200                                 int dif = path.Length - basePath.Length;
 201                                 string file = path.Substring (path.Length - dif);
 202                                 int i=0;
 203                                 while (i < file.Length && file [i] == '/')
 204                                         i++;
 205                                 if (i != 0)
 206                                         file = file.Substring (i);
 207
 208                                 if (file.Length != 0) {
 209                                         foreach (ConfigurationLocation loc in conf.Locations) {
 210                                                 if (loc.Path == file)
 211                                                         return loc.OpenConfiguration ();
 212                                         }
 213                                 }
 214                         }
 215                         return conf;
 216                 }
 217
 218                 public static _Configuration OpenMappedWebConfiguration (WebConfigurationFileMap fileMap, string path)
 219                 {
 220                         return ConfigurationFactory.Create (typeof(WebConfigurationHost), fileMap, path);
 221                 }
 222
 223                 public static _Configuration OpenMappedWebConfiguration (WebConfigurationFileMap fileMap, string path, string site)
 224                 {
 225                         return ConfigurationFactory.Create (typeof(WebConfigurationHost), fileMap, path, site);
 226                 }
 227
 228                 public static _Configuration OpenMappedWebConfiguration (WebConfigurationFileMap fileMap, string path, string site, string locationSubPath)
 229                 {
 230                         return ConfigurationFactory.Create (typeof(WebConfigurationHost), fileMap, path, site, locationSubPath);
 231                 }
 232
 233                 public static _Configuration OpenMappedMachineConfiguration (ConfigurationFileMap fileMap)
 234                 {
 235                         return ConfigurationFactory.Create (typeof(WebConfigurationHost), fileMap);
 236                 }
 237
 238                 public static _Configuration OpenMappedMachineConfiguration (ConfigurationFileMap fileMap,
 239                                                                              string locationSubPath)
 240                 {
 241                         return OpenMappedMachineConfiguration (fileMap);
 242                 }
 243
 244                 public static object GetSection (string sectionName)
 245                 {
 246                         string path = (HttpContext.Current != null
 247                             && HttpContext.Current.Request != null) ?
 248                                 HttpContext.Current.Request.Path : HttpRuntime.AppDomainAppVirtualPath;
 249
 250                         return GetSection (sectionName, path);
 251                 }
 252
 253                 public static object GetSection (string sectionName, string path)
 254                 {
 255                         _Configuration c = OpenWebConfiguration (path);
 256                         ConfigurationSection section = c.GetSection (sectionName);
 257
 258                         if (section == null)
 259                                 return null;
 260
 261                         return get_runtime_object.Invoke (section, new object [0]);
 262                 }
 263
 264                 readonly static MethodInfo get_runtime_object = typeof (ConfigurationSection).GetMethod ("GetRuntimeObject", BindingFlags.NonPublic | BindingFlags.Instance);
 265
 266                 public static object GetWebApplicationSection (string sectionName)
 267                 {
 268                         string path = (HttpContext.Current == null
 269                                 || HttpContext.Current.Request == null
 270                                 || HttpContext.Current.Request.ApplicationPath == null
 271                                 || HttpContext.Current.Request.ApplicationPath == "") ?
 272                                 String.Empty : HttpContext.Current.Request.ApplicationPath;
 273
 274                         return GetSection (sectionName, path);
 275                 }
 276
 277                 public static NameValueCollection AppSettings {
 278                         get { return ConfigurationManager.AppSettings; }
 279                 }
 280
 281                 public static ConnectionStringSettingsCollection ConnectionStrings {
 282                         get { return ConfigurationManager.ConnectionStrings; }
 283                 }
 284
 285                 internal static IInternalConfigConfigurationFactory ConfigurationFactory {
 286                         get { return configFactory; }
 287                 }
 288
 289                 static string GetBasePath (string path)
 290                 {
 291                         if (path == "/" || path == "")
 292                                 return path;
 293
 294                         /* first if we can, map it to a physical path
 295                          * to see if it corresponds to a file */
 296                         if (HttpContext.Current != null
 297                             && HttpContext.Current.Request != null) {
 298                                 string pd = HttpContext.Current.Request.MapPath (path);
 299
 300                                 if (!Directory.Exists (pd)) {
 301                                         /* if it does, remove the file from the url */
 302                                         int i = path.LastIndexOf ('/');
 303                                         path = path.Substring (0, i);
 304                                 }
 305                         }
 306
 307                         if (path.Length == 0)
 308                                 return path;
 309
 310                         /* remove excess /'s from the end of the virtual path */
 311                         while (path [path.Length - 1] == '/')
 312                                 path = path.Substring (0, path.Length - 1);
 313
 314                         return path;
 315                 }
 316
 317
 318 #region stuff copied from WebConfigurationSettings
 319 #if TARGET_J2EE
 320                 static internal IConfigurationSystem oldConfig {
 321                         get {
 322                                 return (IConfigurationSystem)AppDomain.CurrentDomain.GetData("WebConfigurationManager.oldConfig");
 323                         }
 324                         set {
 325                                 AppDomain.CurrentDomain.SetData("WebConfigurationManager.oldConfig", value);
 326                         }
 327                 }
 328
 329                 static private Web20DefaultConfig config {
 330                         get {
 331                                 return (Web20DefaultConfig) AppDomain.CurrentDomain.GetData ("Web20DefaultConfig.config");
 332                         }
 333                         set {
 334                                 AppDomain.CurrentDomain.SetData ("Web20DefaultConfig.config", value);
 335                         }
 336                 }
 337
 338                 static private IInternalConfigSystem configSystem {
 339                         get {
 340                                 return (IInternalConfigSystem) AppDomain.CurrentDomain.GetData ("IInternalConfigSystem.configSystem");
 341                         }
 342                         set {
 343                                 AppDomain.CurrentDomain.SetData ("IInternalConfigSystem.configSystem", value);
 344                         }
 345                 }
 346 #else
 347                 static internal IConfigurationSystem oldConfig;
 348                 static Web20DefaultConfig config;
 349                 static IInternalConfigSystem configSystem;
 350 #endif
 351                 const BindingFlags privStatic = BindingFlags.NonPublic | BindingFlags.Static;
 352                 static readonly object lockobj = new object ();
 353
 354                 internal static void Init ()
 355                 {
 356                         lock (lockobj) {
 357                                 if (config != null)
 358                                         return;
 359
 360                                 /* deal with the ConfigurationSettings stuff */
 361                                 {
 362                                         Web20DefaultConfig settings = Web20DefaultConfig.GetInstance ();
 363                                         Type t = typeof (ConfigurationSettings);
 364                                         MethodInfo changeConfig = t.GetMethod ("ChangeConfigurationSystem",
 365                                                                                privStatic);
 366
 367                                         if (changeConfig == null)
 368                                                 throw new ConfigurationException ("Cannot find method CCS");
 369
 370                                         object [] args = new object [] {settings};
 371                                         oldConfig = (IConfigurationSystem)changeConfig.Invoke (null, args);
 372                                         config = settings;
 373
 374                                         config.Init ();
 375                                 }
 376
 377                                 /* deal with the ConfigurationManager stuff */
 378                                 {
 379                                         HttpConfigurationSystem system = new HttpConfigurationSystem ();
 380                                         Type t = typeof (ConfigurationManager);
 381                                         MethodInfo changeConfig = t.GetMethod ("ChangeConfigurationSystem",
 382                                                                                privStatic);
 383
 384                                         if (changeConfig == null)
 385                                                 throw new ConfigurationException ("Cannot find method CCS");
 386
 387                                         object [] args = new object [] {system};
 388                                         changeConfig.Invoke (null, args);
 389                                         configSystem = system;
 390                                 }
 391                         }
 392                 }
 393         }
 394
 395         class Web20DefaultConfig : IConfigurationSystem
 396         {
 397 #if TARGET_J2EE
 398                 static private Web20DefaultConfig instance {
 399                         get {
 400                                 Web20DefaultConfig val = (Web20DefaultConfig)AppDomain.CurrentDomain.GetData("Web20DefaultConfig.instance");
 401                                 if (val == null) {
 402                                         val = new Web20DefaultConfig();
 403                                         AppDomain.CurrentDomain.SetData("Web20DefaultConfig.instance", val);
 404                                 }
 405                                 return val;
 406                         }
 407                         set {
 408                                 AppDomain.CurrentDomain.SetData("Web20DefaultConfig.instance", value);
 409                         }
 410                 }
 411 #else
 412                 static Web20DefaultConfig instance;
 413 #endif
 414
 415                 static Web20DefaultConfig ()
 416                 {
 417                         instance = new Web20DefaultConfig ();
 418                 }
 419
 420                 public static Web20DefaultConfig GetInstance ()
 421                 {
 422                         return instance;
 423                 }
 424
 425                 public object GetConfig (string sectionName)
 426                 {
 427                         object o = WebConfigurationManager.GetWebApplicationSection (sectionName);
 428
 429                         if (o == null || o is IgnoreSection) {
 430                                 /* this can happen when the section
 431                                  * handler doesn't subclass from
 432                                  * ConfigurationSection.  let's be
 433                                  * nice and try to load it using the
 434                                  * 1.x style routines in case there's
 435                                  * a 1.x section handler registered
 436                                  * for it.
 437                                  */
 438                                 object o1 = WebConfigurationManager.oldConfig.GetConfig (sectionName);
 439                                 if (o1 != null)
 440                                         return o1;
 441                         }
 442
 443                         return o;
 444                 }
 445
 446                 public void Init ()
 447                 {
 448                         // nothing. We need a context.
 449                 }
 450         }
 451
 452 #endregion
 453 }
 454
 455 #endif