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.Web.Util;
  38 using System.Xml;
  39 using System.Configuration;
  40 using System.Configuration.Internal;
  41 using _Configuration = System.Configuration.Configuration;
  42
  43 namespace System.Web.Configuration {
  44
  45         public static class WebConfigurationManager
  46         {
  47 #if !TARGET_J2EE
  48                 static IInternalConfigConfigurationFactory configFactory;
  49                 static Hashtable configurations = Hashtable.Synchronized (new Hashtable ());
  50                 static Hashtable sectionCache = new Hashtable (StringComparer.OrdinalIgnoreCase);
  51 #else
  52                 const string AppSettingsKey = "WebConfigurationManager.AppSettings";
  53                 static internal IInternalConfigConfigurationFactory configFactory
  54                 {
  55                         get{
  56                                 IInternalConfigConfigurationFactory factory = (IInternalConfigConfigurationFactory)AppDomain.CurrentDomain.GetData("WebConfigurationManager.configFactory");
  57                                 if (factory == null){
  58                                         lock (AppDomain.CurrentDomain){
  59                                                 object initialized = AppDomain.CurrentDomain.GetData("WebConfigurationManager.configFactory.initialized");
  60                                                 if (initialized == null){
  61                                                         PropertyInfo prop = typeof(ConfigurationManager).GetProperty("ConfigurationFactory", BindingFlags.Static | BindingFlags.NonPublic);
  62                                                         if (prop != null){
  63                                                                 factory = prop.GetValue(null, null) as IInternalConfigConfigurationFactory;
  64                                                                 configFactory = factory;
  65                                                         }
  66                                                 }
  67                                         }
  68                                 }
  69                                 return factory != null ? factory : configFactory;
  70                         }
  71                         set{
  72                                 AppDomain.CurrentDomain.SetData("WebConfigurationManager.configFactory", value);
  73                                 AppDomain.CurrentDomain.SetData("WebConfigurationManager.configFactory.initialized", true);
  74                         }
  75                 }
  76
  77                 static internal Hashtable configurations
  78                 {
  79                         get{
  80                                 Hashtable table = (Hashtable)AppDomain.CurrentDomain.GetData("WebConfigurationManager.configurations");
  81                                 if (table == null){
  82                                         lock (AppDomain.CurrentDomain){
  83                                                 object initialized = AppDomain.CurrentDomain.GetData("WebConfigurationManager.configurations.initialized");
  84                                                 if (initialized == null){
  85                                                         table = Hashtable.Synchronized (new Hashtable (StringComparer.OrdinalIgnoreCase));
  86                                                         configurations = table;
  87                                                 }
  88                                         }
  89                                 }
  90                                 return table != null ? table : configurations;
  91
  92                         }
  93                         set{
  94                                 AppDomain.CurrentDomain.SetData("WebConfigurationManager.configurations", value);
  95                                 AppDomain.CurrentDomain.SetData("WebConfigurationManager.configurations.initialized", true);
  96                         }
  97                 }
  98
  99                 static Hashtable sectionCache
 100                 {
 101                         get
 102                         {
 103                                 Hashtable sectionCache = (Hashtable) AppDomain.CurrentDomain.GetData ("sectionCache");
 104                                 if (sectionCache == null) {
 105                                         sectionCache = new Hashtable (StringComparer.OrdinalIgnoreCase);
 106                                         AppDomain.CurrentDomain.SetData ("sectionCache", sectionCache);
 107                                 }
 108                                 return sectionCache;
 109                         }
 110                         set
 111                         {
 112                                 AppDomain.CurrentDomain.SetData ("sectionCache", value);
 113                         }
 114                 }
 115 #endif
 116
 117                 static ArrayList extra_assemblies = null;
 118                 static internal ArrayList ExtraAssemblies {
 119                         get {
 120                                 if (extra_assemblies == null)
 121                                         extra_assemblies = new ArrayList();
 122                                 return extra_assemblies;
 123                         }
 124                 }
 125
 126                 static bool hasConfigErrors = false;
 127                 static object hasConfigErrorsLock = new object ();
 128                 static internal bool HasConfigErrors {
 129                         get {
 130                                 lock (hasConfigErrorsLock) {
 131                                         return hasConfigErrors;
 132                                 }
 133                         }
 134                 }
 135
 136                 static WebConfigurationManager ()
 137                 {
 138                         PropertyInfo prop = typeof(ConfigurationManager).GetProperty ("ConfigurationFactory", BindingFlags.Static | BindingFlags.NonPublic);
 139                         if (prop != null)
 140                                 configFactory = prop.GetValue (null, null) as IInternalConfigConfigurationFactory;
 141                 }
 142
 143                 public static _Configuration OpenMachineConfiguration ()
 144                 {
 145                         return ConfigurationManager.OpenMachineConfiguration ();
 146                 }
 147
 148                 [MonoLimitation ("locationSubPath is not handled")]
 149                 public static _Configuration OpenMachineConfiguration (string locationSubPath)
 150                 {
 151                         return OpenMachineConfiguration ();
 152                 }
 153
 154                 [MonoLimitation("Mono does not support remote configuration")]
 155                 public static _Configuration OpenMachineConfiguration (string locationSubPath,
 156                                                                        string server)
 157                 {
 158                         if (server == null)
 159                                 return OpenMachineConfiguration (locationSubPath);
 160
 161                         throw new NotSupportedException ("Mono doesn't support remote configuration");
 162                 }
 163
 164                 [MonoLimitation("Mono does not support remote configuration")]
 165                 public static _Configuration OpenMachineConfiguration (string locationSubPath,
 166                                                                        string server,
 167                                                                        IntPtr userToken)
 168                 {
 169                         if (server == null)
 170                                 return OpenMachineConfiguration (locationSubPath);
 171                         throw new NotSupportedException ("Mono doesn't support remote configuration");
 172                 }
 173
 174                 [MonoLimitation("Mono does not support remote configuration")]
 175                 public static _Configuration OpenMachineConfiguration (string locationSubPath,
 176                                                                        string server,
 177                                                                        string userName,
 178                                                                        string password)
 179                 {
 180                         if (server == null)
 181                                 return OpenMachineConfiguration (locationSubPath);
 182                         throw new NotSupportedException ("Mono doesn't support remote configuration");
 183                 }
 184
 185                 public static _Configuration OpenWebConfiguration (string path)
 186                 {
 187                         return OpenWebConfiguration (path, null, null, null, null, null);
 188                 }
 189
 190                 public static _Configuration OpenWebConfiguration (string path, string site)
 191                 {
 192                         return OpenWebConfiguration (path, site, null, null, null, null);
 193                 }
 194
 195                 public static _Configuration OpenWebConfiguration (string path, string site, string locationSubPath)
 196                 {
 197                         return OpenWebConfiguration (path, site, locationSubPath, null, null, null);
 198                 }
 199
 200                 public static _Configuration OpenWebConfiguration (string path, string site, string locationSubPath, string server)
 201                 {
 202                         return OpenWebConfiguration (path, site, locationSubPath, server, null, null);
 203                 }
 204
 205                 public static _Configuration OpenWebConfiguration (string path, string site, string locationSubPath, string server, IntPtr userToken)
 206                 {
 207                         return OpenWebConfiguration (path, site, locationSubPath, server, null, null);
 208                 }
 209
 210                 public static _Configuration OpenWebConfiguration (string path, string site, string locationSubPath, string server, string userName, string password)
 211                 {
 212                         if (path == null || path.Length == 0)
 213                                 path = "/";
 214
 215                         _Configuration conf;
 216
 217                         conf = (_Configuration) configurations [path];
 218                         if (conf == null) {
 219                                 try {
 220                                         conf = ConfigurationFactory.Create (typeof (WebConfigurationHost), null, path, site, locationSubPath, server, userName, password);
 221                                         configurations [path] = conf;
 222                                 } catch (Exception ex) {
 223                                         lock (hasConfigErrorsLock) {
 224                                                 hasConfigErrors = true;
 225                                         }
 226                                         throw ex;
 227                                 }
 228                         }
 229                         return conf;
 230                 }
 231
 232                 public static _Configuration OpenMappedWebConfiguration (WebConfigurationFileMap fileMap, string path)
 233                 {
 234                         return ConfigurationFactory.Create (typeof(WebConfigurationHost), fileMap, path);
 235                 }
 236
 237                 public static _Configuration OpenMappedWebConfiguration (WebConfigurationFileMap fileMap, string path, string site)
 238                 {
 239                         return ConfigurationFactory.Create (typeof(WebConfigurationHost), fileMap, path, site);
 240                 }
 241
 242                 public static _Configuration OpenMappedWebConfiguration (WebConfigurationFileMap fileMap, string path, string site, string locationSubPath)
 243                 {
 244                         return ConfigurationFactory.Create (typeof(WebConfigurationHost), fileMap, path, site, locationSubPath);
 245                 }
 246
 247                 public static _Configuration OpenMappedMachineConfiguration (ConfigurationFileMap fileMap)
 248                 {
 249                         return ConfigurationFactory.Create (typeof(WebConfigurationHost), fileMap);
 250                 }
 251
 252                 public static _Configuration OpenMappedMachineConfiguration (ConfigurationFileMap fileMap,
 253                                                                              string locationSubPath)
 254                 {
 255                         return OpenMappedMachineConfiguration (fileMap);
 256                 }
 257
 258                 internal static object SafeGetSection (string sectionName, Type configSectionType)
 259                 {
 260                         try {
 261                                 return GetSection (sectionName);
 262                         } catch (Exception) {
 263                                 if (configSectionType != null)
 264                                         return Activator.CreateInstance (configSectionType);
 265                                 return null;
 266                         }
 267                 }
 268
 269                 internal static object SafeGetSection (string sectionName, string path, Type configSectionType)
 270                 {
 271                         try {
 272                                 return GetSection (sectionName, path);
 273                         } catch (Exception) {
 274                                 if (configSectionType != null)
 275                                         return Activator.CreateInstance (configSectionType);
 276                                 return null;
 277                         }
 278                 }
 279
 280                 public static object GetSection (string sectionName)
 281                 {
 282                         return GetSection (sectionName, GetCurrentPath (HttpContext.Current));
 283                 }
 284
 285                 public static object GetSection (string sectionName, string path)
 286                 {
 287                         object cachedSection = sectionCache [GetSectionCacheKey (sectionName, path)];
 288                         if (cachedSection != null)
 289                                 return cachedSection;
 290
 291                         _Configuration c = OpenWebConfiguration (path);
 292                         ConfigurationSection section = c.GetSection (sectionName);
 293
 294                         if (section == null)
 295                                 return null;
 296
 297 #if TARGET_J2EE
 298                         object value = get_runtime_object.Invoke (section, new object [0]);
 299                         if (String.CompareOrdinal ("appSettings", sectionName) == 0) {
 300                                 NameValueCollection collection;
 301                                 collection = new KeyValueMergedCollection (HttpContext.Current, (NameValueCollection) value);
 302                                 value = collection;
 303                         }
 304
 305                         AddSectionToCache (GetSectionCacheKey (sectionName, path), value);
 306                         return value;
 307 #else
 308                         object value = SettingsMappingManager.MapSection (get_runtime_object.Invoke (section, new object [0]));
 309                         AddSectionToCache (GetSectionCacheKey (sectionName, path), value);
 310                         return value;
 311 #endif
 312                 }
 313
 314                 static string GetCurrentPath (HttpContext ctx)
 315                 {
 316                         return (ctx != null && ctx.Request != null) ? ctx.Request.Path : HttpRuntime.AppDomainAppVirtualPath;
 317                 }
 318
 319                 internal static void RemoveConfigurationFromCache (HttpContext ctx)
 320                 {
 321                         configurations.Remove (GetCurrentPath (ctx));
 322                 }
 323
 324                 readonly static MethodInfo get_runtime_object = typeof (ConfigurationSection).GetMethod ("GetRuntimeObject", BindingFlags.NonPublic | BindingFlags.Instance);
 325
 326                 public static object GetWebApplicationSection (string sectionName)
 327                 {
 328                         string path = (HttpContext.Current == null
 329                                 || HttpContext.Current.Request == null
 330                                 || HttpContext.Current.Request.ApplicationPath == null
 331                                 || HttpContext.Current.Request.ApplicationPath == "") ?
 332                                 String.Empty : HttpContext.Current.Request.ApplicationPath;
 333
 334                         return GetSection (sectionName, path);
 335                 }
 336
 337                 public static NameValueCollection AppSettings {
 338                         get { return ConfigurationManager.AppSettings; }
 339                 }
 340
 341                 public static ConnectionStringSettingsCollection ConnectionStrings {
 342                         get { return ConfigurationManager.ConnectionStrings; }
 343                 }
 344
 345                 internal static IInternalConfigConfigurationFactory ConfigurationFactory {
 346                         get { return configFactory; }
 347                 }
 348
 349                 static void AddSectionToCache (string key, object section)
 350                 {
 351                         if (sectionCache [key] != null)
 352                                 return;
 353
 354                         Hashtable tmpTable = (Hashtable) sectionCache.Clone ();
 355                         if (tmpTable.Contains (key))
 356                                 return;
 357
 358                         tmpTable.Add (key, section);
 359                         sectionCache = tmpTable;
 360                 }
 361
 362                 static string GetSectionCacheKey (string sectionName, string path)
 363                 {
 364                         return string.Concat (path, "/", sectionName);
 365                 }
 366
 367
 368 #region stuff copied from WebConfigurationSettings
 369 #if TARGET_J2EE
 370                 static internal IConfigurationSystem oldConfig {
 371                         get {
 372                                 return (IConfigurationSystem)AppDomain.CurrentDomain.GetData("WebConfigurationManager.oldConfig");
 373                         }
 374                         set {
 375                                 AppDomain.CurrentDomain.SetData("WebConfigurationManager.oldConfig", value);
 376                         }
 377                 }
 378
 379                 static private Web20DefaultConfig config {
 380                         get {
 381                                 return (Web20DefaultConfig) AppDomain.CurrentDomain.GetData ("Web20DefaultConfig.config");
 382                         }
 383                         set {
 384                                 AppDomain.CurrentDomain.SetData ("Web20DefaultConfig.config", value);
 385                         }
 386                 }
 387
 388                 static private IInternalConfigSystem configSystem {
 389                         get {
 390                                 return (IInternalConfigSystem) AppDomain.CurrentDomain.GetData ("IInternalConfigSystem.configSystem");
 391                         }
 392                         set {
 393                                 AppDomain.CurrentDomain.SetData ("IInternalConfigSystem.configSystem", value);
 394                         }
 395                 }
 396 #else
 397                 static internal IConfigurationSystem oldConfig;
 398                 static Web20DefaultConfig config;
 399                 //static IInternalConfigSystem configSystem;
 400 #endif
 401                 const BindingFlags privStatic = BindingFlags.NonPublic | BindingFlags.Static;
 402                 static readonly object lockobj = new object ();
 403
 404                 internal static void Init ()
 405                 {
 406                         lock (lockobj) {
 407                                 if (config != null)
 408                                         return;
 409
 410                                 /* deal with the ConfigurationSettings stuff */
 411                                 {
 412                                         Web20DefaultConfig settings = Web20DefaultConfig.GetInstance ();
 413                                         Type t = typeof (ConfigurationSettings);
 414                                         MethodInfo changeConfig = t.GetMethod ("ChangeConfigurationSystem",
 415                                                                                privStatic);
 416
 417                                         if (changeConfig == null)
 418                                                 throw new ConfigurationException ("Cannot find method CCS");
 419
 420                                         object [] args = new object [] {settings};
 421                                         oldConfig = (IConfigurationSystem)changeConfig.Invoke (null, args);
 422                                         config = settings;
 423
 424                                         config.Init ();
 425                                 }
 426
 427                                 /* deal with the ConfigurationManager stuff */
 428                                 {
 429                                         HttpConfigurationSystem system = new HttpConfigurationSystem ();
 430                                         Type t = typeof (ConfigurationManager);
 431                                         MethodInfo changeConfig = t.GetMethod ("ChangeConfigurationSystem",
 432                                                                                privStatic);
 433
 434                                         if (changeConfig == null)
 435                                                 throw new ConfigurationException ("Cannot find method CCS");
 436
 437                                         object [] args = new object [] {system};
 438                                         changeConfig.Invoke (null, args);
 439                                         //configSystem = system;
 440                                 }
 441                         }
 442                 }
 443         }
 444
 445         class Web20DefaultConfig : IConfigurationSystem
 446         {
 447 #if TARGET_J2EE
 448                 static private Web20DefaultConfig instance {
 449                         get {
 450                                 Web20DefaultConfig val = (Web20DefaultConfig)AppDomain.CurrentDomain.GetData("Web20DefaultConfig.instance");
 451                                 if (val == null) {
 452                                         val = new Web20DefaultConfig();
 453                                         AppDomain.CurrentDomain.SetData("Web20DefaultConfig.instance", val);
 454                                 }
 455                                 return val;
 456                         }
 457                         set {
 458                                 AppDomain.CurrentDomain.SetData("Web20DefaultConfig.instance", value);
 459                         }
 460                 }
 461 #else
 462                 static Web20DefaultConfig instance;
 463 #endif
 464
 465                 static Web20DefaultConfig ()
 466                 {
 467                         instance = new Web20DefaultConfig ();
 468                 }
 469
 470                 public static Web20DefaultConfig GetInstance ()
 471                 {
 472                         return instance;
 473                 }
 474
 475                 public object GetConfig (string sectionName)
 476                 {
 477                         object o = WebConfigurationManager.GetWebApplicationSection (sectionName);
 478
 479                         if (o == null || o is IgnoreSection) {
 480                                 /* this can happen when the section
 481                                  * handler doesn't subclass from
 482                                  * ConfigurationSection.  let's be
 483                                  * nice and try to load it using the
 484                                  * 1.x style routines in case there's
 485                                  * a 1.x section handler registered
 486                                  * for it.
 487                                  */
 488                                 object o1 = WebConfigurationManager.oldConfig.GetConfig (sectionName);
 489                                 if (o1 != null)
 490                                         return o1;
 491                         }
 492
 493                         return o;
 494                 }
 495
 496                 public void Init ()
 497                 {
 498                         // nothing. We need a context.
 499                 }
 500         }
 501
 502 #endregion
 503 }
 504
 505 #endif