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 #if MONOWEB_DEP
  38 using Mono.Web.Util;
  39 #endif
  40 using System.Xml;
  41 using System.Configuration;
  42 using System.Configuration.Internal;
  43 using _Configuration = System.Configuration.Configuration;
  44
  45 namespace System.Web.Configuration {
  46
  47         public static class WebConfigurationManager
  48         {
  49 #if !TARGET_J2EE
  50                 static IInternalConfigConfigurationFactory configFactory;
  51                 static Hashtable configurations = Hashtable.Synchronized (new Hashtable ());
  52                 static Hashtable sectionCache = new Hashtable (StringComparer.OrdinalIgnoreCase);
  53 #else
  54                 const string AppSettingsKey = "WebConfigurationManager.AppSettings";
  55                 static internal IInternalConfigConfigurationFactory configFactory
  56                 {
  57                         get{
  58                                 IInternalConfigConfigurationFactory factory = (IInternalConfigConfigurationFactory)AppDomain.CurrentDomain.GetData("WebConfigurationManager.configFactory");
  59                                 if (factory == null){
  60                                         lock (AppDomain.CurrentDomain){
  61                                                 object initialized = AppDomain.CurrentDomain.GetData("WebConfigurationManager.configFactory.initialized");
  62                                                 if (initialized == null){
  63                                                         PropertyInfo prop = typeof(ConfigurationManager).GetProperty("ConfigurationFactory", BindingFlags.Static | BindingFlags.NonPublic);
  64                                                         if (prop != null){
  65                                                                 factory = prop.GetValue(null, null) as IInternalConfigConfigurationFactory;
  66                                                                 configFactory = factory;
  67                                                         }
  68                                                 }
  69                                         }
  70                                 }
  71                                 return factory != null ? factory : configFactory;
  72                         }
  73                         set{
  74                                 AppDomain.CurrentDomain.SetData("WebConfigurationManager.configFactory", value);
  75                                 AppDomain.CurrentDomain.SetData("WebConfigurationManager.configFactory.initialized", true);
  76                         }
  77                 }
  78
  79                 static internal Hashtable configurations
  80                 {
  81                         get{
  82                                 Hashtable table = (Hashtable)AppDomain.CurrentDomain.GetData("WebConfigurationManager.configurations");
  83                                 if (table == null){
  84                                         lock (AppDomain.CurrentDomain){
  85                                                 object initialized = AppDomain.CurrentDomain.GetData("WebConfigurationManager.configurations.initialized");
  86                                                 if (initialized == null){
  87                                                         table = Hashtable.Synchronized (new Hashtable (StringComparer.OrdinalIgnoreCase));
  88                                                         configurations = table;
  89                                                 }
  90                                         }
  91                                 }
  92                                 return table != null ? table : configurations;
  93
  94                         }
  95                         set{
  96                                 AppDomain.CurrentDomain.SetData("WebConfigurationManager.configurations", value);
  97                                 AppDomain.CurrentDomain.SetData("WebConfigurationManager.configurations.initialized", true);
  98                         }
  99                 }
 100
 101                 static Hashtable sectionCache
 102                 {
 103                         get
 104                         {
 105                                 Hashtable sectionCache = (Hashtable) AppDomain.CurrentDomain.GetData ("sectionCache");
 106                                 if (sectionCache == null) {
 107                                         sectionCache = new Hashtable (StringComparer.OrdinalIgnoreCase);
 108                                         AppDomain.CurrentDomain.SetData ("sectionCache", sectionCache);
 109                                 }
 110                                 return sectionCache;
 111                         }
 112                         set
 113                         {
 114                                 AppDomain.CurrentDomain.SetData ("sectionCache", value);
 115                         }
 116                 }
 117 #endif
 118
 119                 static ArrayList extra_assemblies = null;
 120                 static internal ArrayList ExtraAssemblies {
 121                         get {
 122                                 if (extra_assemblies == null)
 123                                         extra_assemblies = new ArrayList();
 124                                 return extra_assemblies;
 125                         }
 126                 }
 127
 128                 static bool hasConfigErrors = false;
 129                 static object hasConfigErrorsLock = new object ();
 130                 static internal bool HasConfigErrors {
 131                         get {
 132                                 lock (hasConfigErrorsLock) {
 133                                         return hasConfigErrors;
 134                                 }
 135                         }
 136                 }
 137
 138                 static WebConfigurationManager ()
 139                 {
 140                         PropertyInfo prop = typeof(ConfigurationManager).GetProperty ("ConfigurationFactory", BindingFlags.Static | BindingFlags.NonPublic);
 141                         if (prop != null)
 142                                 configFactory = prop.GetValue (null, null) as IInternalConfigConfigurationFactory;
 143                 }
 144
 145                 public static _Configuration OpenMachineConfiguration ()
 146                 {
 147                         return ConfigurationManager.OpenMachineConfiguration ();
 148                 }
 149
 150                 [MonoLimitation ("locationSubPath is not handled")]
 151                 public static _Configuration OpenMachineConfiguration (string locationSubPath)
 152                 {
 153                         return OpenMachineConfiguration ();
 154                 }
 155
 156                 [MonoLimitation("Mono does not support remote configuration")]
 157                 public static _Configuration OpenMachineConfiguration (string locationSubPath,
 158                                                                        string server)
 159                 {
 160                         if (server == null)
 161                                 return OpenMachineConfiguration (locationSubPath);
 162
 163                         throw new NotSupportedException ("Mono doesn't support remote configuration");
 164                 }
 165
 166                 [MonoLimitation("Mono does not support remote configuration")]
 167                 public static _Configuration OpenMachineConfiguration (string locationSubPath,
 168                                                                        string server,
 169                                                                        IntPtr userToken)
 170                 {
 171                         if (server == null)
 172                                 return OpenMachineConfiguration (locationSubPath);
 173                         throw new NotSupportedException ("Mono doesn't support remote configuration");
 174                 }
 175
 176                 [MonoLimitation("Mono does not support remote configuration")]
 177                 public static _Configuration OpenMachineConfiguration (string locationSubPath,
 178                                                                        string server,
 179                                                                        string userName,
 180                                                                        string password)
 181                 {
 182                         if (server == null)
 183                                 return OpenMachineConfiguration (locationSubPath);
 184                         throw new NotSupportedException ("Mono doesn't support remote configuration");
 185                 }
 186
 187                 public static _Configuration OpenWebConfiguration (string path)
 188                 {
 189                         return OpenWebConfiguration (path, null, null, null, null, null);
 190                 }
 191
 192                 public static _Configuration OpenWebConfiguration (string path, string site)
 193                 {
 194                         return OpenWebConfiguration (path, site, null, null, null, null);
 195                 }
 196
 197                 public static _Configuration OpenWebConfiguration (string path, string site, string locationSubPath)
 198                 {
 199                         return OpenWebConfiguration (path, site, locationSubPath, null, null, null);
 200                 }
 201
 202                 public static _Configuration OpenWebConfiguration (string path, string site, string locationSubPath, string server)
 203                 {
 204                         return OpenWebConfiguration (path, site, locationSubPath, server, null, null);
 205                 }
 206
 207                 public static _Configuration OpenWebConfiguration (string path, string site, string locationSubPath, string server, IntPtr userToken)
 208                 {
 209                         return OpenWebConfiguration (path, site, locationSubPath, server, null, null);
 210                 }
 211
 212                 public static _Configuration OpenWebConfiguration (string path, string site, string locationSubPath, string server, string userName, string password)
 213                 {
 214                         if (path == null || path.Length == 0)
 215                                 path = "/";
 216
 217                         _Configuration conf;
 218
 219                         conf = (_Configuration) configurations [path];
 220                         if (conf == null) {
 221                                 try {
 222                                         conf = ConfigurationFactory.Create (typeof (WebConfigurationHost), null, path, site, locationSubPath, server, userName, password);
 223                                         configurations [path] = conf;
 224                                 } catch (Exception ex) {
 225                                         lock (hasConfigErrorsLock) {
 226                                                 hasConfigErrors = true;
 227                                         }
 228                                         throw ex;
 229                                 }
 230                         }
 231                         return conf;
 232                 }
 233
 234                 public static _Configuration OpenMappedWebConfiguration (WebConfigurationFileMap fileMap, string path)
 235                 {
 236                         return ConfigurationFactory.Create (typeof(WebConfigurationHost), fileMap, path);
 237                 }
 238
 239                 public static _Configuration OpenMappedWebConfiguration (WebConfigurationFileMap fileMap, string path, string site)
 240                 {
 241                         return ConfigurationFactory.Create (typeof(WebConfigurationHost), fileMap, path, site);
 242                 }
 243
 244                 public static _Configuration OpenMappedWebConfiguration (WebConfigurationFileMap fileMap, string path, string site, string locationSubPath)
 245                 {
 246                         return ConfigurationFactory.Create (typeof(WebConfigurationHost), fileMap, path, site, locationSubPath);
 247                 }
 248
 249                 public static _Configuration OpenMappedMachineConfiguration (ConfigurationFileMap fileMap)
 250                 {
 251                         return ConfigurationFactory.Create (typeof(WebConfigurationHost), fileMap);
 252                 }
 253
 254                 public static _Configuration OpenMappedMachineConfiguration (ConfigurationFileMap fileMap,
 255                                                                              string locationSubPath)
 256                 {
 257                         return OpenMappedMachineConfiguration (fileMap);
 258                 }
 259
 260                 internal static object SafeGetSection (string sectionName, Type configSectionType)
 261                 {
 262                         try {
 263                                 return GetSection (sectionName);
 264                         } catch (Exception) {
 265                                 if (configSectionType != null)
 266                                         return Activator.CreateInstance (configSectionType);
 267                                 return null;
 268                         }
 269                 }
 270
 271                 internal static object SafeGetSection (string sectionName, string path, Type configSectionType)
 272                 {
 273                         try {
 274                                 return GetSection (sectionName, path);
 275                         } catch (Exception) {
 276                                 if (configSectionType != null)
 277                                         return Activator.CreateInstance (configSectionType);
 278                                 return null;
 279                         }
 280                 }
 281
 282                 public static object GetSection (string sectionName)
 283                 {
 284                         return GetSection (sectionName, GetCurrentPath (HttpContext.Current));
 285                 }
 286
 287                 public static object GetSection (string sectionName, string path)
 288                 {
 289                         object cachedSection = sectionCache [GetSectionCacheKey (sectionName, path)];
 290                         if (cachedSection != null)
 291                                 return cachedSection;
 292
 293                         _Configuration c = OpenWebConfiguration (path);
 294                         ConfigurationSection section = c.GetSection (sectionName);
 295
 296                         if (section == null)
 297                                 return null;
 298
 299 #if TARGET_J2EE
 300                         object value = get_runtime_object.Invoke (section, new object [0]);
 301                         if (String.CompareOrdinal ("appSettings", sectionName) == 0) {
 302                                 NameValueCollection collection;
 303                                 collection = new KeyValueMergedCollection (HttpContext.Current, (NameValueCollection) value);
 304                                 value = collection;
 305                         }
 306
 307                         AddSectionToCache (GetSectionCacheKey (sectionName, path), value);
 308                         return value;
 309 #else
 310 #if MONOWEB_DEP
 311                         object value = SettingsMappingManager.MapSection (get_runtime_object.Invoke (section, new object [0]));
 312 #else
 313                         object value = null;
 314 #endif
 315                         AddSectionToCache (GetSectionCacheKey (sectionName, path), value);
 316                         return value;
 317 #endif
 318                 }
 319
 320                 static string GetCurrentPath (HttpContext ctx)
 321                 {
 322                         return (ctx != null && ctx.Request != null) ? ctx.Request.Path : HttpRuntime.AppDomainAppVirtualPath;
 323                 }
 324
 325                 internal static void RemoveConfigurationFromCache (HttpContext ctx)
 326                 {
 327                         configurations.Remove (GetCurrentPath (ctx));
 328                 }
 329
 330                 readonly static MethodInfo get_runtime_object = typeof (ConfigurationSection).GetMethod ("GetRuntimeObject", BindingFlags.NonPublic | BindingFlags.Instance);
 331
 332                 public static object GetWebApplicationSection (string sectionName)
 333                 {
 334                         string path = (HttpContext.Current == null
 335                                 || HttpContext.Current.Request == null
 336                                 || HttpContext.Current.Request.ApplicationPath == null
 337                                 || HttpContext.Current.Request.ApplicationPath == "") ?
 338                                 String.Empty : HttpContext.Current.Request.ApplicationPath;
 339
 340                         return GetSection (sectionName, path);
 341                 }
 342
 343                 public static NameValueCollection AppSettings {
 344                         get { return ConfigurationManager.AppSettings; }
 345                 }
 346
 347                 public static ConnectionStringSettingsCollection ConnectionStrings {
 348                         get { return ConfigurationManager.ConnectionStrings; }
 349                 }
 350
 351                 internal static IInternalConfigConfigurationFactory ConfigurationFactory {
 352                         get { return configFactory; }
 353                 }
 354
 355                 static void AddSectionToCache (string key, object section)
 356                 {
 357                         if (sectionCache [key] != null)
 358                                 return;
 359
 360                         Hashtable tmpTable = (Hashtable) sectionCache.Clone ();
 361                         if (tmpTable.Contains (key))
 362                                 return;
 363
 364                         tmpTable.Add (key, section);
 365                         sectionCache = tmpTable;
 366                 }
 367
 368                 static string GetSectionCacheKey (string sectionName, string path)
 369                 {
 370                         return string.Concat (path, "/", sectionName);
 371                 }
 372
 373
 374 #region stuff copied from WebConfigurationSettings
 375 #if TARGET_J2EE
 376                 static internal IConfigurationSystem oldConfig {
 377                         get {
 378                                 return (IConfigurationSystem)AppDomain.CurrentDomain.GetData("WebConfigurationManager.oldConfig");
 379                         }
 380                         set {
 381                                 AppDomain.CurrentDomain.SetData("WebConfigurationManager.oldConfig", value);
 382                         }
 383                 }
 384
 385                 static private Web20DefaultConfig config {
 386                         get {
 387                                 return (Web20DefaultConfig) AppDomain.CurrentDomain.GetData ("Web20DefaultConfig.config");
 388                         }
 389                         set {
 390                                 AppDomain.CurrentDomain.SetData ("Web20DefaultConfig.config", value);
 391                         }
 392                 }
 393
 394                 static private IInternalConfigSystem configSystem {
 395                         get {
 396                                 return (IInternalConfigSystem) AppDomain.CurrentDomain.GetData ("IInternalConfigSystem.configSystem");
 397                         }
 398                         set {
 399                                 AppDomain.CurrentDomain.SetData ("IInternalConfigSystem.configSystem", value);
 400                         }
 401                 }
 402 #else
 403                 static internal IConfigurationSystem oldConfig;
 404                 static Web20DefaultConfig config;
 405                 //static IInternalConfigSystem configSystem;
 406 #endif
 407                 const BindingFlags privStatic = BindingFlags.NonPublic | BindingFlags.Static;
 408                 static readonly object lockobj = new object ();
 409
 410                 internal static void Init ()
 411                 {
 412                         lock (lockobj) {
 413                                 if (config != null)
 414                                         return;
 415
 416                                 /* deal with the ConfigurationSettings stuff */
 417                                 {
 418                                         Web20DefaultConfig settings = Web20DefaultConfig.GetInstance ();
 419                                         Type t = typeof (ConfigurationSettings);
 420                                         MethodInfo changeConfig = t.GetMethod ("ChangeConfigurationSystem",
 421                                                                                privStatic);
 422
 423                                         if (changeConfig == null)
 424                                                 throw new ConfigurationException ("Cannot find method CCS");
 425
 426                                         object [] args = new object [] {settings};
 427                                         oldConfig = (IConfigurationSystem)changeConfig.Invoke (null, args);
 428                                         config = settings;
 429
 430                                         config.Init ();
 431                                 }
 432
 433                                 /* deal with the ConfigurationManager stuff */
 434                                 {
 435                                         HttpConfigurationSystem system = new HttpConfigurationSystem ();
 436                                         Type t = typeof (ConfigurationManager);
 437                                         MethodInfo changeConfig = t.GetMethod ("ChangeConfigurationSystem",
 438                                                                                privStatic);
 439
 440                                         if (changeConfig == null)
 441                                                 throw new ConfigurationException ("Cannot find method CCS");
 442
 443                                         object [] args = new object [] {system};
 444                                         changeConfig.Invoke (null, args);
 445                                         //configSystem = system;
 446                                 }
 447                         }
 448                 }
 449         }
 450
 451         class Web20DefaultConfig : IConfigurationSystem
 452         {
 453 #if TARGET_J2EE
 454                 static private Web20DefaultConfig instance {
 455                         get {
 456                                 Web20DefaultConfig val = (Web20DefaultConfig)AppDomain.CurrentDomain.GetData("Web20DefaultConfig.instance");
 457                                 if (val == null) {
 458                                         val = new Web20DefaultConfig();
 459                                         AppDomain.CurrentDomain.SetData("Web20DefaultConfig.instance", val);
 460                                 }
 461                                 return val;
 462                         }
 463                         set {
 464                                 AppDomain.CurrentDomain.SetData("Web20DefaultConfig.instance", value);
 465                         }
 466                 }
 467 #else
 468                 static Web20DefaultConfig instance;
 469 #endif
 470
 471                 static Web20DefaultConfig ()
 472                 {
 473                         instance = new Web20DefaultConfig ();
 474                 }
 475
 476                 public static Web20DefaultConfig GetInstance ()
 477                 {
 478                         return instance;
 479                 }
 480
 481                 public object GetConfig (string sectionName)
 482                 {
 483                         object o = WebConfigurationManager.GetWebApplicationSection (sectionName);
 484
 485                         if (o == null || o is IgnoreSection) {
 486                                 /* this can happen when the section
 487                                  * handler doesn't subclass from
 488                                  * ConfigurationSection.  let's be
 489                                  * nice and try to load it using the
 490                                  * 1.x style routines in case there's
 491                                  * a 1.x section handler registered
 492                                  * for it.
 493                                  */
 494                                 object o1 = WebConfigurationManager.oldConfig.GetConfig (sectionName);
 495                                 if (o1 != null)
 496                                         return o1;
 497                         }
 498
 499                         return o;
 500                 }
 501
 502                 public void Init ()
 503                 {
 504                         // nothing. We need a context.
 505                 }
 506         }
 507
 508 #endregion
 509 }
 510
 511 #endif