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