mcs/class/System/System.Configuration/CustomizableFileSettingsProvider.cs

   1 //
   2 // CustomizableFileSettingsProvider.cs
   3 //
   4 // Authors:
   5 //      Noriaki Okimoto  <seara@ojk.sppd.ne.jp>
   6 //      Atsushi Enomoto  <atsushi@ximian.com>
   7 //
   8 // (C)2007 Noriaki Okimoto
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29
  30 #if CONFIGURATION_DEP
  31
  32 using System;
  33 using System.Collections;
  34 using System.Collections.Generic;
  35 using System.Collections.Specialized;
  36 using System.Configuration;
  37 using System.Globalization;
  38 using System.IO;
  39 using System.Reflection;
  40 using System.Security.Cryptography;
  41 using System.Text;
  42 using System.Xml;
  43
  44 namespace System.Configuration
  45 {
  46         // location to store user configuration settings.
  47         internal enum UserConfigLocationOption : uint
  48         {
  49                 Product = 0x20,
  50                 Product_VersionMajor = 0x21,
  51                 Product_VersionMinor = 0x22,
  52                 Product_VersionBuild = 0x24,
  53                 Product_VersionRevision = 0x28,
  54                 Company_Product = 0x30,
  55                 Company_Product_VersionMajor = 0x31,
  56                 Company_Product_VersionMinor = 0x32,
  57                 Company_Product_VersionBuild = 0x34,
  58                 Company_Product_VersionRevision = 0x38,
  59                 Evidence = 0x40,
  60                 Other = 0x8000
  61         }
  62
  63         internal class CustomizableFileSettingsProvider : SettingsProvider, IApplicationSettingsProvider
  64         {
  65                 // KLUDGE WARNING.
  66                 //
  67                 // This is used from within System.Web to allow mapping of the ExeConfigFilename to
  68                 // the correct Web.config for the current request. Otherwise web applications will
  69                 // not be able to access settings from Web.config. The type assigned to this
  70                 // variable must descend from the ConfigurationFileMap class and its
  71                 // MachineConfigFilename will be used to set the ExeConfigFilename.
  72                 //
  73                 // This is necessary to fix bug #491531
  74 #pragma warning disable 649
  75                 private static Type webConfigurationFileMapType;
  76 #pragma warning restore 649
  77
  78                 private static string userRoamingPath = "";
  79                 private static string userLocalPath = "";
  80                 private static string userRoamingPathPrevVersion = "";
  81                 private static string userLocalPathPrevVersion = "";
  82                 private static string userRoamingName = "user.config";
  83                 private static string userLocalName = "user.config";
  84                 private static string userRoamingBasePath = "";
  85                 private static string userLocalBasePath = "";
  86                 private static string CompanyName = "";
  87                 private static string ProductName = "";
  88                 private static string ForceVersion = "";
  89                 private static string[] ProductVersion;
  90
  91                 // whether to include parts in the folder name or not:
  92                 private static bool isVersionMajor = false;     // 0x0001       major version
  93                 private static bool isVersionMinor = false;     // 0x0002       minor version
  94                 private static bool isVersionBuild = false;     // 0x0004       build version
  95                 private static bool isVersionRevision = false;  // 0x0008       revision
  96                 private static bool isCompany = true;           // 0x0010       corporate name
  97                 private static bool isProduct = true;           // 0x0020       product name
  98                 private static bool isEvidence = false;         // 0x0040       evidence hash
  99
 100                 private static bool userDefine = false;         // 0x8000       ignore all above and use user definition
 101
 102                 private static UserConfigLocationOption userConfig = UserConfigLocationOption.Company_Product;
 103
 104                 public override void Initialize (string name, NameValueCollection config)
 105                 {
 106                         base.Initialize (name, config);
 107                 }
 108
 109                 // full path to roaming user.config
 110                 internal static string UserRoamingFullPath {
 111                         get { return Path.Combine (userRoamingPath, userRoamingName); }
 112                 }
 113
 114                 // full path to local user.config
 115                 internal static string UserLocalFullPath {
 116                         get { return Path.Combine (userLocalPath, userLocalName); }
 117                 }
 118
 119                 // previous full path to roaming user.config
 120                 public static string PrevUserRoamingFullPath {
 121                         get { return Path.Combine (userRoamingPathPrevVersion, userRoamingName); }
 122                 }
 123
 124                 // previous full path to local user.config
 125                 public static string PrevUserLocalFullPath {
 126                         get { return Path.Combine (userLocalPathPrevVersion, userLocalName); }
 127                 }
 128
 129                 // path to roaming user.config
 130                 public static string UserRoamingPath {
 131                         get { return userRoamingPath; }
 132                 }
 133
 134                 // path to local user.config
 135                 public static string UserLocalPath {
 136                         get { return userLocalPath; }
 137                 }
 138
 139                 // file name which is equivalent to user.config, for roaming user
 140                 public static string UserRoamingName {
 141                         get { return userRoamingName; }
 142                 }
 143
 144                 // file name which is equivalent to user.config, for local user
 145                 public static string UserLocalName {
 146                         get { return userLocalName; }
 147                 }
 148
 149                 public static UserConfigLocationOption UserConfigSelector
 150                 {
 151                         get { return userConfig; }
 152                         set {
 153                                 userConfig = value;
 154
 155                                 if (((uint) userConfig & 0x8000) != 0) {
 156                                         isVersionMajor = false;
 157                                         isVersionMinor = false;
 158                                         isVersionBuild = false;
 159                                         isVersionRevision = false;
 160                                         isCompany = false;
 161                                         return;
 162                                 }
 163
 164                                 isVersionRevision = ((uint) userConfig & 0x0008) != 0;
 165                                 isVersionBuild = isVersionRevision | ((uint)userConfig & 0x0004) != 0;
 166                                 isVersionMinor = isVersionBuild | ((uint)userConfig & 0x0002) != 0;
 167                                 isVersionMajor = IsVersionMinor | ((uint)userConfig & 0x0001) != 0;
 168
 169                                 isCompany = ((uint) userConfig & 0x0010) != 0;
 170                                 isProduct = ((uint) userConfig & 0x0020) != 0;
 171                         }
 172                 }
 173
 174                 // whether the path to include the major version.
 175                 public static bool IsVersionMajor
 176                 {
 177                         get { return isVersionMajor; }
 178                         set
 179                         {
 180                                 isVersionMajor = value;
 181                                 isVersionMinor = false;
 182                                 isVersionBuild = false;
 183                                 isVersionRevision = false;
 184                         }
 185                 }
 186
 187                 // whether the path to include minor version.
 188                 public static bool IsVersionMinor
 189                 {
 190                         get { return isVersionMinor; }
 191                         set
 192                         {
 193                                 isVersionMinor = value;
 194                                 if (isVersionMinor)
 195                                         isVersionMajor = true;
 196                                 isVersionBuild = false;
 197                                 isVersionRevision = false;
 198                         }
 199                 }
 200
 201                 // whether the path to include build version.
 202                 public static bool IsVersionBuild
 203                 {
 204                         get { return isVersionBuild; }
 205                         set
 206                         {
 207                                 isVersionBuild = value;
 208                                 if (isVersionBuild) {
 209                                         isVersionMajor = true;
 210                                         isVersionMinor = true;
 211                                 }
 212                                 isVersionRevision = false;
 213                         }
 214                 }
 215
 216                 // whether the path to include revision.
 217                 public static bool IsVersionRevision
 218                 {
 219                         get { return isVersionRevision; }
 220                         set
 221                         {
 222                                 isVersionRevision = value;
 223                                 if (isVersionRevision) {
 224                                         isVersionMajor = true;
 225                                         isVersionMinor = true;
 226                                         isVersionBuild = true;
 227                                 }
 228                         }
 229                 }
 230
 231                 // whether the path to include company name.
 232                 public static bool IsCompany
 233                 {
 234                         get { return isCompany; }
 235                         set { isCompany = value; }
 236                 }
 237
 238                 // whether the path to include evidence hash.
 239                 public static bool IsEvidence
 240                 {
 241                         get { return isEvidence; }
 242                         set { isEvidence = value; }
 243                 }
 244
 245                 // AssemblyCompanyAttribute->Namespace->"Program"
 246                 private static string GetCompanyName ()
 247                 {
 248                         Assembly assembly = Assembly.GetEntryAssembly ();
 249                         if (assembly == null)
 250                                 assembly = Assembly.GetCallingAssembly ();
 251
 252                         AssemblyCompanyAttribute [] attrs = (AssemblyCompanyAttribute []) assembly.GetCustomAttributes (typeof (AssemblyCompanyAttribute), true);
 253
 254                         if ((attrs != null) && attrs.Length > 0) {
 255                                 return attrs [0].Company;
 256                         }
 257
 258                         MethodInfo entryPoint = assembly.EntryPoint;
 259                         Type entryType = entryPoint != null ? entryPoint.DeclaringType : null;
 260                         if (entryType != null && !String.IsNullOrEmpty (entryType.Namespace)) {
 261                                 int end = entryType.Namespace.IndexOf ('.');
 262                                 return end < 0 ? entryType.Namespace : entryType.Namespace.Substring (0, end);
 263                         }
 264                         return "Program";
 265                 }
 266
 267                 private static string GetProductName ()
 268                 {
 269                         Assembly assembly = Assembly.GetEntryAssembly ();
 270                         if (assembly == null)
 271                                 assembly = Assembly.GetCallingAssembly ();
 272
 273                         byte [] pkt = assembly.GetName ().GetPublicKeyToken ();
 274                         return String.Format ("{0}_{1}_{2}",
 275                                 AppDomain.CurrentDomain.FriendlyName,
 276                                 pkt != null && pkt.Length > 0 ? "StrongName" : "Url",
 277                                 GetEvidenceHash());
 278                 }
 279
 280                 // Note: Changed from base64() to hex output to avoid unexpected chars like '\' or '/' with filesystem meaning.
 281                 //       Otherwise eventually filenames, which are invalid on linux or windows, might be created.
 282                 // Signed-off-by:  Carsten Schlote <schlote@vahanus.net>
 283                 // TODO: Compare with .NET. It might be also, that their way isn't suitable for Unix OS derivates (slahes in output)
 284                 private static string GetEvidenceHash ()
 285                 {
 286                         Assembly assembly = Assembly.GetEntryAssembly ();
 287                         if (assembly == null)
 288                                 assembly = Assembly.GetCallingAssembly ();
 289
 290                         byte [] pkt = assembly.GetName ().GetPublicKeyToken ();
 291                         byte [] hash = SHA1.Create ().ComputeHash (pkt != null && pkt.Length >0 ? pkt : Encoding.UTF8.GetBytes (assembly.EscapedCodeBase));
 292                         System.Text.StringBuilder evidence_string = new System.Text.StringBuilder();
 293                         foreach (byte b in hash)
 294                                 evidence_string.AppendFormat("{0:x2}",b);
 295                         return evidence_string.ToString ();
 296                 }
 297
 298                 private static string GetProductVersion ()
 299                 {
 300                         Assembly assembly = Assembly.GetEntryAssembly ();
 301                         if (assembly == null)
 302                                 assembly = Assembly.GetCallingAssembly ();
 303                         if (assembly == null)
 304                                 return string.Empty;
 305
 306                         return assembly.GetName ().Version.ToString ();
 307                 }
 308
 309                 private static void CreateUserConfigPath ()
 310                 {
 311                         if (userDefine)
 312                                 return;
 313
 314                         if (ProductName == "")
 315                                 ProductName = GetProductName ();
 316                         if (CompanyName == "")
 317                                 CompanyName = GetCompanyName ();
 318                         if (ForceVersion == "")
 319                                 ProductVersion = GetProductVersion ().Split('.');
 320
 321                         // C:\Documents and Settings\(user)\Application Data
 322                         if (userRoamingBasePath == "")
 323                                 userRoamingPath = Environment.GetFolderPath (Environment.SpecialFolder.ApplicationData);
 324                         else
 325                                 userRoamingPath = userRoamingBasePath;
 326
 327                         // C:\Documents and Settings\(user)\Local Settings\Application Data (on Windows)
 328                         if (userLocalBasePath == "")
 329                                 userLocalPath = Environment.GetFolderPath (Environment.SpecialFolder.LocalApplicationData);
 330                         else
 331                                 userLocalPath = userLocalBasePath;
 332
 333                         if (isCompany) {
 334                                 userRoamingPath = Path.Combine (userRoamingPath, CompanyName);
 335                                 userLocalPath = Path.Combine (userLocalPath, CompanyName);
 336                         }
 337
 338                         if (isProduct) {
 339                                 if (isEvidence) {
 340                                         Assembly assembly = Assembly.GetEntryAssembly ();
 341                                         if (assembly == null)
 342                                                 assembly = Assembly.GetCallingAssembly ();
 343                                         byte [] pkt = assembly.GetName ().GetPublicKeyToken ();
 344                                         ProductName = String.Format ("{0}_{1}_{2}",
 345                                                 ProductName,
 346                                                 pkt != null ? "StrongName" : "Url",
 347                                                 GetEvidenceHash());
 348                                 }
 349                                 userRoamingPath = Path.Combine (userRoamingPath, ProductName);
 350                                 userLocalPath = Path.Combine (userLocalPath, ProductName);
 351
 352                         }
 353
 354                         string versionName;
 355
 356                         if (ForceVersion == "") {
 357                                 if (isVersionRevision)
 358                                         versionName = String.Format ("{0}.{1}.{2}.{3}", ProductVersion [0], ProductVersion [1], ProductVersion [2], ProductVersion [3]);
 359                                 else if (isVersionBuild)
 360                                         versionName = String.Format ("{0}.{1}.{2}", ProductVersion [0], ProductVersion [1], ProductVersion [2]);
 361                                 else if (isVersionMinor)
 362                                         versionName = String.Format ("{0}.{1}", ProductVersion [0], ProductVersion [1]);
 363                                 else if (isVersionMajor)
 364                                         versionName = ProductVersion [0];
 365                                 else
 366                                         versionName = "";
 367                         }
 368                         else
 369                                 versionName = ForceVersion;
 370
 371                         string prevVersionRoaming = PrevVersionPath (userRoamingPath, versionName);
 372                         string prevVersionLocal = PrevVersionPath (userLocalPath, versionName);
 373
 374                         userRoamingPath = Path.Combine (userRoamingPath, versionName);
 375                         userLocalPath = Path.Combine (userLocalPath, versionName);
 376                         if (prevVersionRoaming != "")
 377                                 userRoamingPathPrevVersion = Path.Combine(userRoamingPath, prevVersionRoaming);
 378                         if (prevVersionLocal != "")
 379                                 userLocalPathPrevVersion = Path.Combine(userLocalPath, prevVersionLocal);
 380                 }
 381
 382                 // string for the previous version. It ignores newer ones.
 383                 private static string PrevVersionPath (string dirName, string currentVersion)
 384                 {
 385                         string prevVersionString = "";
 386
 387                         if (!Directory.Exists(dirName))
 388                                 return prevVersionString;
 389                         DirectoryInfo currentDir = new DirectoryInfo (dirName);
 390                         foreach (DirectoryInfo dirInfo in currentDir.GetDirectories ())
 391                                 if (String.Compare (currentVersion, dirInfo.Name, StringComparison.Ordinal) > 0)
 392                                         if (String.Compare (prevVersionString, dirInfo.Name, StringComparison.Ordinal) < 0)
 393                                                 prevVersionString = dirInfo.Name;
 394
 395                         return prevVersionString;
 396                 }
 397
 398                 // sets the explicit path to store roaming user.config or equivalent.
 399                 // (returns the path validity.)
 400                 public static bool SetUserRoamingPath (string configPath)
 401                 {
 402                         if (CheckPath (configPath))
 403                         {
 404                                 userRoamingBasePath = configPath;
 405                                 return true;
 406                         }
 407                         else
 408                                 return false;
 409                 }
 410
 411                 // sets the explicit path to store local user.config or equivalent.
 412                 // (returns the path validity.)
 413                 public static bool SetUserLocalPath (string configPath)
 414                 {
 415                         if (CheckPath (configPath))
 416                         {
 417                                 userLocalBasePath = configPath;
 418                                 return true;
 419                         }
 420                         else
 421                                 return false;
 422                 }
 423
 424                 private static bool CheckFileName (string configFile)
 425                 {
 426                         /*
 427                         char[] invalidFileChars = Path.GetInvalidFileNameChars();
 428
 429                         foreach (char invalidChar in invalidFileChars)
 430                         {
 431                                 if (configFile.Contains(invalidChar.ToString()))
 432                                 {
 433                                         return false;
 434                                 }
 435                         }
 436                         return true;
 437                         */
 438                         return configFile.IndexOfAny (Path.GetInvalidFileNameChars ()) < 0;
 439                 }
 440
 441                 // sets the explicit roaming file name which is user.config equivalent.
 442                 // (returns the file name validity.)
 443                 public static bool SetUserRoamingFileName (string configFile)
 444                 {
 445                         if (CheckFileName (configFile))
 446                         {
 447                                 userRoamingName = configFile;
 448                                 return true;
 449                         }
 450                         else
 451                                 return false;
 452                 }
 453
 454                 // sets the explicit local file name which is user.config equivalent.
 455                 // (returns the file name validity.)
 456                 public static bool SetUserLocalFileName (string configFile)
 457                 {
 458                         if (CheckFileName (configFile))
 459                         {
 460                                 userLocalName = configFile;
 461                                 return true;
 462                         }
 463                         else
 464                                 return false;
 465                 }
 466
 467                 // sets the explicit company name for folder.
 468                 // (returns the file name validity.)
 469                 public static bool SetCompanyName (string companyName)
 470                 {
 471                         if (CheckFileName (companyName))
 472                         {
 473                                 CompanyName = companyName;
 474                                 return true;
 475                         }
 476                         else
 477                                 return false;
 478                 }
 479
 480                 // sets the explicit product name for folder.
 481                 // (returns the file name validity.)
 482                 public static bool SetProductName (string productName)
 483                 {
 484                         if (CheckFileName (productName))
 485                         {
 486                                 ProductName = productName;
 487                                 return true;
 488                         }
 489                         else
 490                                 return false;
 491                 }
 492
 493                 // sets the explicit major version for folder.
 494                 public static bool SetVersion (int major)
 495                 {
 496                         ForceVersion = string.Format ("{0}", major);
 497                         return true;
 498                 }
 499
 500                 // sets the explicit major and minor versions for folder.
 501                 public static bool SetVersion (int major, int minor)
 502                 {
 503                         ForceVersion = string.Format ("{0}.{1}", major, minor);
 504                         return true;
 505                 }
 506
 507                 // sets the explicit major/minor/build numbers for folder.
 508                 public static bool SetVersion (int major, int minor, int build)
 509                 {
 510                         ForceVersion = string.Format ("{0}.{1}.{2}", major, minor, build);
 511                         return true;
 512                 }
 513
 514                 // sets the explicit major/minor/build/revision numbers for folder.
 515                 public static bool SetVersion (int major, int minor, int build, int revision)
 516                 {
 517                         ForceVersion = string.Format ("{0}.{1}.{2}.{3}", major, minor, build, revision);
 518                         return true;
 519                 }
 520
 521                 // sets the explicit version number string for folder.
 522                 public static bool SetVersion (string forceVersion)
 523                 {
 524                         if (CheckFileName (forceVersion))
 525                         {
 526                                 ForceVersion = forceVersion;
 527                                 return true;
 528                         }
 529                         else
 530                                 return false;
 531                 }
 532
 533                 private static bool CheckPath (string configPath)
 534                 {
 535                         char[] invalidPathChars = Path.GetInvalidPathChars ();
 536
 537                         /*
 538                         foreach (char invalidChar in invalidPathChars)
 539                         {
 540                                 if (configPath.Contains (invalidChar.ToString()))
 541                                 {
 542                                         return false;
 543                                 }
 544                         }
 545                         */
 546                         if (configPath.IndexOfAny (invalidPathChars) >= 0)
 547                                 return false;
 548
 549                         string folder = configPath;
 550                         string fileName;
 551                         while ((fileName = Path.GetFileName (folder)) != "")
 552                         {
 553                                 if (!CheckFileName (fileName))
 554                                 {
 555                                         return false;
 556                                 }
 557                                 folder = Path.GetDirectoryName (folder);
 558                         }
 559
 560                         return true;
 561                 }
 562
 563
 564                 public override string Name {
 565                         get { return base.Name; }
 566                 }
 567
 568                 string app_name = String.Empty;//"OJK.CustomSetting.CustomizableLocalFileSettingsProvider";
 569                 public override string ApplicationName {
 570                         get { return app_name; }
 571                         set { app_name = value; }
 572                 }
 573
 574                 private ExeConfigurationFileMap exeMapCurrent = null;
 575                 private ExeConfigurationFileMap exeMapPrev = null;
 576                 private SettingsPropertyValueCollection values = null;
 577
 578                 /// <remarks>
 579                 /// Hack to remove the XmlDeclaration that the XmlSerializer adds.
 580                 /// <br />
 581                 /// see <a href="https://github.com/mono/mono/pull/2273">Issue 2273</a> for details
 582                 /// </remarks>
 583                 private string StripXmlHeader (string serializedValue)
 584                 {
 585                         if (serializedValue == null)
 586                         {
 587                                 return string.Empty;
 588                         }
 589
 590                         XmlDocument doc = new XmlDocument ();
 591                         XmlElement valueXml = doc.CreateElement ("value");
 592                         valueXml.InnerXml = serializedValue;
 593
 594                         foreach (XmlNode child in valueXml.ChildNodes) {
 595                                 if (child.NodeType == XmlNodeType.XmlDeclaration) {
 596                                         valueXml.RemoveChild (child);
 597                                         break;
 598                                 }
 599                         }
 600
 601                         // InnerXml will give you well-formed XML that you could save as a separate document, and
 602                         // InnerText will immediately give you a pure-text representation of this inner XML.
 603                         return valueXml.InnerXml;
 604                 }
 605
 606                 private void SaveProperties (ExeConfigurationFileMap exeMap, SettingsPropertyValueCollection collection, ConfigurationUserLevel level, SettingsContext context, bool checkUserLevel)
 607                 {
 608                         Configuration config = ConfigurationManager.OpenMappedExeConfiguration (exeMap, level);
 609
 610                         UserSettingsGroup userGroup = config.GetSectionGroup ("userSettings") as UserSettingsGroup;
 611                         bool isRoaming = (level == ConfigurationUserLevel.PerUserRoaming);
 612
 613                         if (userGroup == null) {
 614                                 userGroup = new UserSettingsGroup ();
 615                                 config.SectionGroups.Add ("userSettings", userGroup);
 616                         }
 617                         ApplicationSettingsBase asb = context.CurrentSettings;
 618                         string class_name = NormalizeInvalidXmlChars ((asb != null ? asb.GetType () : typeof (ApplicationSettingsBase)).FullName);
 619                         ClientSettingsSection userSection = null;
 620                         ConfigurationSection cnf = userGroup.Sections.Get (class_name);
 621                         userSection = cnf as ClientSettingsSection;
 622                         if (userSection == null) {
 623                                 userSection = new ClientSettingsSection ();
 624                                 userGroup.Sections.Add (class_name, userSection);
 625                         }
 626
 627                         bool hasChanges = false;
 628
 629                         if (userSection == null)
 630                                 return;
 631
 632                         foreach (SettingsPropertyValue value in collection) {
 633                                 if (checkUserLevel && value.Property.Attributes.Contains (typeof (SettingsManageabilityAttribute)) != isRoaming)
 634                                         continue;
 635                                 // The default impl does not save the ApplicationScopedSetting properties
 636                                 if (value.Property.Attributes.Contains (typeof (ApplicationScopedSettingAttribute)))
 637                                         continue;
 638
 639                                 hasChanges = true;
 640                                 SettingElement element = userSection.Settings.Get (value.Name);
 641                                 if (element == null) {
 642                                         element = new SettingElement (value.Name, value.Property.SerializeAs);
 643                                         userSection.Settings.Add (element);
 644                                 }
 645                                 if (element.Value.ValueXml == null)
 646                                         element.Value.ValueXml = new XmlDocument ().CreateElement ("value");
 647                                 switch (value.Property.SerializeAs) {
 648                                 case SettingsSerializeAs.Xml:
 649                                         element.Value.ValueXml.InnerXml = StripXmlHeader (value.SerializedValue as string);
 650                                         break;
 651                                 case SettingsSerializeAs.String:
 652                                         element.Value.ValueXml.InnerText = value.SerializedValue as string;
 653                                         break;
 654                                 case SettingsSerializeAs.Binary:
 655                                         element.Value.ValueXml.InnerText = value.SerializedValue != null ? Convert.ToBase64String (value.SerializedValue as byte []) : string.Empty;
 656                                         break;
 657                                 default:
 658                                         throw new NotImplementedException ();
 659                                 }
 660                         }
 661                         if (hasChanges)
 662                                 config.Save (ConfigurationSaveMode.Minimal, true);
 663                 }
 664
 665                 // NOTE: We should add here all the chars that are valid in a name of a class (Ecma-wise),
 666                 // but invalid in an xml element name, and provide a better impl if we get too many of them.
 667                 string NormalizeInvalidXmlChars (string str)
 668                 {
 669                         char [] invalid_chars = new char [] { '+' };
 670
 671                         if (str == null || str.IndexOfAny (invalid_chars) == -1)
 672                                 return str;
 673
 674                         // Replace with its hexadecimal values.
 675                         str = str.Replace ("+", "_x002B_");
 676                         return str;
 677                 }
 678
 679                 private void LoadPropertyValue (SettingsPropertyCollection collection, SettingElement element, bool allowOverwrite)
 680                 {
 681                         SettingsProperty prop = collection [element.Name];
 682                         if (prop == null) { // see bug #343459
 683                                 prop = new SettingsProperty (element.Name);
 684                                 collection.Add (prop);
 685                         }
 686
 687                         SettingsPropertyValue value = new SettingsPropertyValue (prop);
 688                         value.IsDirty = false;
 689                         if (element.Value.ValueXml != null) {
 690                                 switch (value.Property.SerializeAs) {
 691                                 case SettingsSerializeAs.Xml:
 692                                         value.SerializedValue = element.Value.ValueXml.InnerXml;
 693                                         break;
 694                                 case SettingsSerializeAs.String:
 695                                         value.SerializedValue = element.Value.ValueXml.InnerText.Trim ();
 696                                         break;
 697                                 case SettingsSerializeAs.Binary:
 698                                         value.SerializedValue = Convert.FromBase64String (element.Value.ValueXml.InnerText);
 699                                         break;
 700                                 }
 701                         }
 702                         else
 703                                 value.SerializedValue = prop.DefaultValue;
 704                         try
 705                         {
 706                                 if (allowOverwrite)
 707                                         values.Remove (element.Name);
 708                                 values.Add (value);
 709                         } catch (ArgumentException ex) {
 710                                 throw new ConfigurationErrorsException (string.Format (
 711                                         CultureInfo.InvariantCulture,
 712                                         "Failed to load value for '{0}'.",
 713                                         element.Name), ex);
 714                         }
 715                 }
 716
 717                 private void LoadProperties (ExeConfigurationFileMap exeMap, SettingsPropertyCollection collection, ConfigurationUserLevel level, string sectionGroupName, bool allowOverwrite, string groupName)
 718                 {
 719                         Configuration config = ConfigurationManager.OpenMappedExeConfiguration (exeMap,level);
 720
 721                         ConfigurationSectionGroup sectionGroup = config.GetSectionGroup (sectionGroupName);
 722                         if (sectionGroup != null) {
 723                                 foreach (ConfigurationSection configSection in sectionGroup.Sections) {
 724                                         if (configSection.SectionInformation.Name != groupName)
 725                                                 continue;
 726
 727                                         ClientSettingsSection clientSection = configSection as ClientSettingsSection;
 728                                         if (clientSection == null)
 729                                                 continue;
 730
 731                                         foreach (SettingElement element in clientSection.Settings) {
 732                                                 LoadPropertyValue(collection, element, allowOverwrite);
 733                                         }
 734                                         // Only the first one seems to be processed by MS
 735                                         break;
 736                                 }
 737                         }
 738
 739                 }
 740
 741                 public override void SetPropertyValues (SettingsContext context, SettingsPropertyValueCollection collection)
 742                 {
 743                         CreateExeMap ();
 744
 745                         if (UserLocalFullPath == UserRoamingFullPath)
 746                         {
 747                                 SaveProperties (exeMapCurrent, collection, ConfigurationUserLevel.PerUserRoaming, context, false);
 748                         } else {
 749                                 SaveProperties (exeMapCurrent, collection, ConfigurationUserLevel.PerUserRoaming, context, true);
 750                                 SaveProperties (exeMapCurrent, collection, ConfigurationUserLevel.PerUserRoamingAndLocal, context, true);
 751                         }
 752                 }
 753
 754                 public override SettingsPropertyValueCollection GetPropertyValues (SettingsContext context, SettingsPropertyCollection collection)
 755                 {
 756                         CreateExeMap ();
 757
 758                         values = new SettingsPropertyValueCollection ();
 759                         string groupName = context ["GroupName"] as string;
 760                         groupName = NormalizeInvalidXmlChars (groupName); // we likely saved the element removing the non valid xml chars.
 761                         LoadProperties (exeMapCurrent, collection, ConfigurationUserLevel.None, "applicationSettings", false, groupName);
 762                         LoadProperties (exeMapCurrent, collection, ConfigurationUserLevel.None, "userSettings", false, groupName);
 763
 764                         LoadProperties (exeMapCurrent, collection, ConfigurationUserLevel.PerUserRoaming, "userSettings", true, groupName);
 765                         LoadProperties (exeMapCurrent, collection, ConfigurationUserLevel.PerUserRoamingAndLocal, "userSettings", true, groupName);
 766
 767                         // create default values if not exist
 768                         foreach (SettingsProperty p in collection)
 769                                 if (values [p.Name] == null)
 770                                         values.Add (new SettingsPropertyValue (p));
 771                         return values;
 772                 }
 773
 774                 /// creates an ExeConfigurationFileMap
 775                 private void CreateExeMap ()
 776                 {
 777                         if (exeMapCurrent == null) {
 778                                 CreateUserConfigPath ();
 779
 780                                 // current version
 781                                 exeMapCurrent = new ExeConfigurationFileMap ();
 782
 783                                 // exeMapCurrent.ExeConfigFilename = System.Windows.Forms.Application.ExecutablePath + ".config";
 784                                 Assembly entry = Assembly.GetEntryAssembly () ?? Assembly.GetExecutingAssembly ();
 785                                 exeMapCurrent.ExeConfigFilename = entry.Location + ".config";
 786                                 exeMapCurrent.LocalUserConfigFilename = UserLocalFullPath;
 787                                 exeMapCurrent.RoamingUserConfigFilename = UserRoamingFullPath;
 788
 789                                 if (webConfigurationFileMapType != null && typeof (ConfigurationFileMap).IsAssignableFrom (webConfigurationFileMapType)) {
 790                                         try {
 791                                                 ConfigurationFileMap cfgFileMap = Activator.CreateInstance (webConfigurationFileMapType) as ConfigurationFileMap;
 792                                                 if (cfgFileMap != null) {
 793                                                         string fpath = cfgFileMap.MachineConfigFilename;
 794                                                         if (!String.IsNullOrEmpty (fpath))
 795                                                                 exeMapCurrent.ExeConfigFilename = fpath;
 796                                                 }
 797                                         } catch {
 798                                                 // ignore
 799                                         }
 800                                 }
 801
 802                                 // previous version
 803                                 if ((PrevUserLocalFullPath != "") && (PrevUserRoamingFullPath != ""))
 804                                 {
 805                                         exeMapPrev = new ExeConfigurationFileMap();
 806                                         // exeMapPrev.ExeConfigFilename = System.Windows.Forms.Application.ExecutablePath + ".config";
 807                                         exeMapPrev.ExeConfigFilename = entry.Location + ".config";
 808                                         exeMapPrev.LocalUserConfigFilename = PrevUserLocalFullPath;
 809                                         exeMapPrev.RoamingUserConfigFilename = PrevUserRoamingFullPath;
 810                                 }
 811                         }
 812                 }
 813
 814                 // FIXME: implement
 815                 public SettingsPropertyValue GetPreviousVersion (SettingsContext context, SettingsProperty property)
 816                 {
 817                         return null;
 818                 }
 819
 820                 public void Reset (SettingsContext context)
 821                 {
 822                         if (values != null) {
 823                                 foreach (SettingsPropertyValue propertyValue in values) {
 824                                         // Can't use propertyValue.Property.DefaultValue
 825                                         // as it may cause InvalidCastException (see bug# 532180)
 826                                         values[propertyValue.Name].PropertyValue = propertyValue.Reset ();
 827                                 }
 828                         }
 829                 }
 830
 831                 // FIXME: implement
 832                 public void Upgrade (SettingsContext context, SettingsPropertyCollection properties)
 833                 {
 834                 }
 835
 836                 public static void setCreate ()
 837                 {
 838                         CreateUserConfigPath();
 839                 }
 840         }
 841 }
 842
 843 #endif