mcs/class/System.Web/System.Web.UI/TemplateParser.cs

   1 //
   2 // System.Web.UI.TemplateParser
   3 //
   4 // Authors:
   5 //      Duncan Mak (duncan@ximian.com)
   6 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   7 //
   8 // (C) 2002,2003 Ximian, Inc. (http://www.ximian.com)
   9 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System.CodeDom.Compiler;
  32 using System.Collections;
  33 using System.ComponentModel;
  34 using System.Globalization;
  35 using System.IO;
  36 using System.Reflection;
  37 using System.Security.Permissions;
  38 using System.Web.Compilation;
  39 using System.Web.Configuration;
  40 using System.Web.Util;
  41
  42 #if NET_2_0
  43 using System.Collections.Generic;
  44 #endif
  45
  46 namespace System.Web.UI {
  47         internal class ServerSideScript
  48         {
  49                 public readonly string Script;
  50                 public readonly ILocation Location;
  51
  52                 public ServerSideScript (string script, ILocation location)
  53                 {
  54                         Script = script;
  55                         Location = location;
  56                 }
  57         }
  58
  59         // CAS
  60         [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  61         [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  62         public abstract class TemplateParser : BaseParser
  63         {
  64                 string inputFile;
  65                 string text;
  66                 string privateBinPath;
  67                 Hashtable mainAttributes;
  68                 ArrayList dependencies;
  69                 ArrayList assemblies;
  70                 Hashtable anames;
  71                 ArrayList imports;
  72                 ArrayList interfaces;
  73                 ArrayList scripts;
  74                 Type baseType;
  75                 bool baseTypeIsGlobal = true;
  76                 string className;
  77                 RootBuilder rootBuilder;
  78                 bool debug;
  79                 string compilerOptions;
  80                 string language;
  81                 bool implicitLanguage;
  82                 bool strictOn = false;
  83                 bool explicitOn = false;
  84                 bool linePragmasOn = false;
  85                 bool output_cache;
  86                 int oc_duration;
  87                 string oc_header, oc_custom, oc_param, oc_controls;
  88 #if NET_2_0
  89                 string oc_content_encodings;
  90 #endif
  91                 bool oc_shared;
  92                 OutputCacheLocation oc_location;
  93                 CultureInfo invariantCulture = CultureInfo.InvariantCulture;
  94 #if NET_2_0
  95                 string src;
  96                 bool srcIsLegacy;
  97                 string partialClassName;
  98                 string codeFileBaseClass;
  99                 string metaResourceKey;
 100                 Type codeFileBaseClassType;
 101                 List <UnknownAttributeDescriptor> unknownMainAttributes;
 102 #endif
 103                 ILocation directiveLocation;
 104
 105                 Assembly srcAssembly;
 106                 int appAssemblyIndex = -1;
 107
 108                 internal TemplateParser ()
 109                 {
 110                         LoadConfigDefaults ();
 111
 112                         imports = new ArrayList ();
 113 #if NET_2_0
 114                         AddNamespaces (imports);
 115 #else
 116                         imports.Add ("System");
 117                         imports.Add ("System.Collections");
 118                         imports.Add ("System.Collections.Specialized");
 119                         imports.Add ("System.Configuration");
 120                         imports.Add ("System.Text");
 121                         imports.Add ("System.Text.RegularExpressions");
 122                         imports.Add ("System.Web");
 123                         imports.Add ("System.Web.Caching");
 124                         imports.Add ("System.Web.Security");
 125                         imports.Add ("System.Web.SessionState");
 126                         imports.Add ("System.Web.UI");
 127                         imports.Add ("System.Web.UI.WebControls");
 128                         imports.Add ("System.Web.UI.HtmlControls");
 129 #endif
 130
 131                         assemblies = new ArrayList ();
 132 #if NET_2_0
 133                         CompilationSection compConfig = CompilationConfig;
 134
 135                         bool addAssembliesInBin = false;
 136                         foreach (AssemblyInfo info in compConfig.Assemblies) {
 137                                 if (info.Assembly == "*")
 138                                         addAssembliesInBin = true;
 139                                 else
 140                                         AddAssemblyByName (info.Assembly);
 141                         }
 142                         if (addAssembliesInBin)
 143                                 AddAssembliesInBin ();
 144
 145                         foreach (NamespaceInfo info in PagesConfig.Namespaces) {
 146                                 imports.Add (info.Namespace);
 147                         }
 148 #else
 149                         CompilationConfiguration compConfig = CompilationConfig;
 150
 151                         foreach (string a in compConfig.Assemblies)
 152                                 AddAssemblyByName (a);
 153                         if (compConfig.AssembliesInBin)
 154                                 AddAssembliesInBin ();
 155 #endif
 156
 157                         language = compConfig.DefaultLanguage;
 158                         implicitLanguage = true;
 159                 }
 160
 161                 internal virtual void LoadConfigDefaults ()
 162                 {
 163                         debug = CompilationConfig.Debug;
 164                 }
 165
 166                 internal void AddApplicationAssembly ()
 167                 {
 168                         if (Context.ApplicationInstance == null)
 169                                 return; // this may happen if we have Global.asax and have
 170                                         // controls registered from Web.Config
 171                         string location = Context.ApplicationInstance.AssemblyLocation;
 172                         if (location != typeof (TemplateParser).Assembly.Location) {
 173                                 appAssemblyIndex = assemblies.Add (location);
 174                         }
 175                 }
 176
 177                 protected abstract Type CompileIntoType ();
 178
 179 #if NET_2_0
 180                 void AddNamespaces (ArrayList imports)
 181                 {
 182                         if (BuildManager.HaveResources)
 183                                 imports.Add ("System.Resources");
 184
 185                         PagesSection pages = WebConfigurationManager.GetSection ("system.web/pages") as PagesSection;
 186                         if (pages == null)
 187                                 return;
 188
 189                         NamespaceCollection namespaces = pages.Namespaces;
 190                         if (namespaces == null || namespaces.Count == 0)
 191                                 return;
 192
 193                         foreach (NamespaceInfo nsi in namespaces)
 194                                 imports.Add (nsi.Namespace);
 195                 }
 196 #endif
 197
 198                 internal void RegisterCustomControl (string tagPrefix, string tagName, string src)
 199                 {
 200                         string realpath = MapPath (src);
 201                         if (String.Compare (realpath, inputFile, false, invariantCulture) == 0)
 202                                 return;
 203
 204                         if (!File.Exists (realpath))
 205                                 throw new ParseException (Location, "Could not find file \"" + realpath + "\".");
 206                         string vpath = VirtualPathUtility.Combine (BaseVirtualDir, src);
 207                         if (VirtualPathUtility.IsAbsolute (vpath))
 208                                 vpath = VirtualPathUtility.ToAppRelative (vpath);
 209
 210                         Type type = null;
 211                         AddDependency (vpath);
 212                         try {
 213 #if NET_2_0
 214                                 type = BuildManager.GetCompiledType (vpath);
 215 #else
 216                                 ArrayList other_deps = new ArrayList ();
 217                                 type = UserControlParser.GetCompiledType (vpath, realpath, other_deps, Context);
 218                                 foreach (string s in other_deps)
 219                                         AddDependency (s);
 220 #endif
 221                         } catch (ParseException pe) {
 222                                 if (this is UserControlParser)
 223                                         throw new ParseException (Location, pe.Message, pe);
 224                                 throw;
 225                         }
 226
 227                         AddAssembly (type.Assembly, true);
 228                         RootBuilder.Foundry.RegisterFoundry (tagPrefix, tagName, type);
 229                 }
 230
 231                 internal void RegisterNamespace (string tagPrefix, string ns, string assembly)
 232                 {
 233                         AddImport (ns);
 234                         Assembly ass = null;
 235
 236                         if (assembly != null && assembly.Length > 0)
 237                                 ass = AddAssemblyByName (assembly);
 238
 239                         RootBuilder.Foundry.RegisterFoundry (tagPrefix, ass, ns);
 240                 }
 241
 242                 internal virtual void HandleOptions (object obj)
 243                 {
 244                 }
 245
 246                 internal static string GetOneKey (Hashtable tbl)
 247                 {
 248                         foreach (object key in tbl.Keys)
 249                                 return key.ToString ();
 250
 251                         return null;
 252                 }
 253
 254                 internal virtual void AddDirective (string directive, Hashtable atts)
 255                 {
 256                         if (String.Compare (directive, DefaultDirectiveName, true) == 0) {
 257                                 if (mainAttributes != null)
 258                                         ThrowParseException ("Only 1 " + DefaultDirectiveName + " is allowed");
 259
 260                                 mainAttributes = atts;
 261                                 ProcessMainAttributes (mainAttributes);
 262                                 return;
 263                         }
 264
 265                         int cmp = String.Compare ("Assembly", directive, true);
 266                         if (cmp == 0) {
 267                                 string name = GetString (atts, "Name", null);
 268                                 string src = GetString (atts, "Src", null);
 269
 270                                 if (atts.Count > 0)
 271                                         ThrowParseException ("Attribute " + GetOneKey (atts) + " unknown.");
 272
 273                                 if (name == null && src == null)
 274                                         ThrowParseException ("You gotta specify Src or Name");
 275
 276                                 if (name != null && src != null)
 277                                         ThrowParseException ("Src and Name cannot be used together");
 278
 279                                 if (name != null) {
 280                                         AddAssemblyByName (name);
 281                                 } else {
 282                                         GetAssemblyFromSource (src);
 283                                 }
 284
 285                                 return;
 286                         }
 287
 288                         cmp = String.Compare ("Import", directive, true);
 289                         if (cmp == 0) {
 290                                 string namesp = GetString (atts, "Namespace", null);
 291                                 if (atts.Count > 0)
 292                                         ThrowParseException ("Attribute " + GetOneKey (atts) + " unknown.");
 293
 294                                 if (namesp != null && namesp != "")
 295                                         AddImport (namesp);
 296                                 return;
 297                         }
 298
 299                         cmp = String.Compare ("Implements", directive, true);
 300                         if (cmp == 0) {
 301                                 string ifacename = GetString (atts, "Interface", "");
 302
 303                                 if (atts.Count > 0)
 304                                         ThrowParseException ("Attribute " + GetOneKey (atts) + " unknown.");
 305
 306                                 Type iface = LoadType (ifacename);
 307                                 if (iface == null)
 308                                         ThrowParseException ("Cannot find type " + ifacename);
 309
 310                                 if (!iface.IsInterface)
 311                                         ThrowParseException (iface + " is not an interface");
 312
 313                                 AddInterface (iface.FullName);
 314                                 return;
 315                         }
 316
 317                         cmp = String.Compare ("OutputCache", directive, true);
 318                         if (cmp == 0) {
 319                                 HttpResponse response = HttpContext.Current.Response;
 320                                 if (response != null)
 321                                         response.Cache.SetValidUntilExpires (true);
 322
 323                                 output_cache = true;
 324
 325                                 if (atts ["Duration"] == null)
 326                                         ThrowParseException ("The directive is missing a 'duration' attribute.");
 327                                 if (atts ["VaryByParam"] == null && atts ["VaryByControl"] == null)
 328                                         ThrowParseException ("This directive is missing 'VaryByParam' " +
 329                                                         "or 'VaryByControl' attribute, which should be set to \"none\", \"*\", " +
 330                                                         "or a list of name/value pairs.");
 331
 332                                 foreach (DictionaryEntry entry in atts) {
 333                                         string key = (string) entry.Key;
 334                                         switch (key.ToLower ()) {
 335                                                 case "duration":
 336                                                         oc_duration = Int32.Parse ((string) entry.Value);
 337                                                         if (oc_duration < 1)
 338                                                                 ThrowParseException ("The 'duration' attribute must be set " +
 339                                                                                      "to a positive integer value");
 340                                                         break;
 341 #if NET_2_0
 342                                                 case "varybycontentencodings":
 343                                                         oc_content_encodings = (string) entry.Value;
 344                                                         break;
 345 #endif
 346                                                 case "varybyparam":
 347                                                         oc_param = (string) entry.Value;
 348                                                         if (String.Compare (oc_param, "none") == 0)
 349                                                                 oc_param = null;
 350                                                         break;
 351                                                 case "varybyheader":
 352                                                         oc_header = (string) entry.Value;
 353                                                         break;
 354                                                 case "varybycustom":
 355                                                         oc_custom = (string) entry.Value;
 356                                                         break;
 357                                                 case "location":
 358                                                         if (!(this is PageParser))
 359                                                                 goto default;
 360
 361                                                         try {
 362                                                                 oc_location = (OutputCacheLocation) Enum.Parse (
 363                                                                         typeof (OutputCacheLocation), (string) entry.Value, true);
 364                                                         } catch {
 365                                                                 ThrowParseException ("The 'location' attribute is case sensitive and " +
 366                                                                                      "must be one of the following values: Any, Client, " +
 367                                                                                      "Downstream, Server, None, ServerAndClient.");
 368                                                         }
 369                                                         break;
 370                                                 case "varybycontrol":
 371 #if ONLY_1_1
 372                                                         if (this is PageParser)
 373                                                                 goto default;
 374 #endif
 375                                                         oc_controls = (string) entry.Value;
 376                                                         break;
 377                                                 case "shared":
 378                                                         if (this is PageParser)
 379                                                                 goto default;
 380
 381                                                         try {
 382                                                                 oc_shared = Boolean.Parse ((string) entry.Value);
 383                                                         } catch {
 384                                                                 ThrowParseException ("The 'shared' attribute is case sensitive" +
 385                                                                                      " and must be set to 'true' or 'false'.");
 386                                                         }
 387                                                         break;
 388                                                 default:
 389                                                         ThrowParseException ("The '" + key + "' attribute is not " +
 390                                                                              "supported by the 'Outputcache' directive.");
 391                                                         break;
 392                                         }
 393
 394                                 }
 395
 396                                 return;
 397                         }
 398
 399                         ThrowParseException ("Unknown directive: " + directive);
 400                 }
 401
 402                 internal Type LoadType (string typeName)
 403                 {
 404                         Type type = HttpApplication.LoadType (typeName);
 405                         if (type == null)
 406                                 return null;
 407                         Assembly asm = type.Assembly;
 408                         string location = asm.Location;
 409
 410                         string dirname = Path.GetDirectoryName (location);
 411                         bool doAddAssembly = true;
 412                         foreach (string dir in HttpApplication.BinDirectories) {
 413                                 if (dirname == dir) {
 414                                         doAddAssembly = false;
 415                                         break;
 416                                 }
 417                         }
 418
 419                         if (doAddAssembly)
 420                                 AddAssembly (asm, true);
 421
 422                         return type;
 423                 }
 424
 425                 void AddAssembliesInBin ()
 426                 {
 427                         foreach (string s in HttpApplication.BinDirectoryAssemblies)
 428                                 assemblies.Add (s);
 429                 }
 430
 431                 internal virtual void AddInterface (string iface)
 432                 {
 433                         if (interfaces == null)
 434                                 interfaces = new ArrayList ();
 435
 436                         if (!interfaces.Contains (iface))
 437                                 interfaces.Add (iface);
 438                 }
 439
 440                 internal virtual void AddImport (string namesp)
 441                 {
 442                         if (imports == null)
 443                                 imports = new ArrayList ();
 444
 445                         if (!imports.Contains (namesp))
 446                                 imports.Add (namesp);
 447                 }
 448
 449                 internal virtual void AddSourceDependency (string filename)
 450                 {
 451                         if (dependencies != null && dependencies.Contains (filename))
 452                                 ThrowParseException ("Circular file references are not allowed. File: " + filename);
 453
 454                         AddDependency (filename);
 455                 }
 456
 457                 internal virtual void AddDependency (string filename)
 458                 {
 459                         if (filename == "")
 460                                 return;
 461
 462                         if (dependencies == null)
 463                                 dependencies = new ArrayList ();
 464
 465                         if (!dependencies.Contains (filename))
 466                                 dependencies.Add (filename);
 467                 }
 468
 469                 internal virtual void AddAssembly (Assembly assembly, bool fullPath)
 470                 {
 471                         if (assembly.Location == "")
 472                                 return;
 473
 474                         if (anames == null)
 475                                 anames = new Hashtable ();
 476
 477                         string name = assembly.GetName ().Name;
 478                         string loc = assembly.Location;
 479                         if (fullPath) {
 480                                 if (!assemblies.Contains (loc)) {
 481                                         assemblies.Add (loc);
 482                                 }
 483
 484                                 anames [name] = loc;
 485                                 anames [loc] = assembly;
 486                         } else {
 487                                 if (!assemblies.Contains (name)) {
 488                                         assemblies.Add (name);
 489                                 }
 490
 491                                 anames [name] = assembly;
 492                         }
 493                 }
 494
 495                 internal virtual Assembly AddAssemblyByFileName (string filename)
 496                 {
 497                         Assembly assembly = null;
 498                         Exception error = null;
 499
 500                         try {
 501                                 assembly = Assembly.LoadFrom (filename);
 502                         } catch (Exception e) { error = e; }
 503
 504                         if (assembly == null)
 505                                 ThrowParseException ("Assembly " + filename + " not found", error);
 506
 507                         AddAssembly (assembly, true);
 508                         return assembly;
 509                 }
 510
 511                 internal virtual Assembly AddAssemblyByName (string name)
 512                 {
 513                         if (anames == null)
 514                                 anames = new Hashtable ();
 515
 516                         if (anames.Contains (name)) {
 517                                 object o = anames [name];
 518                                 if (o is string)
 519                                         o = anames [o];
 520
 521                                 return (Assembly) o;
 522                         }
 523
 524                         Assembly assembly = null;
 525                         Exception error = null;
 526                         try {
 527                                 assembly = Assembly.Load (name);
 528                         } catch (Exception e) { error = e; }
 529
 530                         if (assembly == null) {
 531                                 try {
 532                                         assembly = Assembly.LoadWithPartialName (name);
 533                                 } catch (Exception e) { error = e; }
 534                         }
 535
 536                         if (assembly == null)
 537                                 ThrowParseException ("Assembly " + name + " not found", error);
 538
 539                         AddAssembly (assembly, true);
 540                         return assembly;
 541                 }
 542
 543                 internal virtual void ProcessMainAttributes (Hashtable atts)
 544                 {
 545                         directiveLocation = new System.Web.Compilation.Location (Location);
 546
 547 #if NET_2_0
 548                         CompilationSection compConfig;
 549 #else
 550                         CompilationConfiguration compConfig;
 551 #endif
 552
 553                         compConfig = CompilationConfig;
 554
 555                         atts.Remove ("Description"); // ignored
 556 #if NET_1_1
 557                         atts.Remove ("CodeBehind");  // ignored
 558 #endif
 559                         atts.Remove ("AspCompat"); // ignored
 560
 561                         debug = GetBool (atts, "Debug", compConfig.Debug);
 562                         compilerOptions = GetString (atts, "CompilerOptions", "");
 563                         language = GetString (atts, "Language", "");
 564                         if (language.Length != 0)
 565                                 implicitLanguage = false;
 566                         else
 567                                 language = compConfig.DefaultLanguage;
 568
 569                         strictOn = GetBool (atts, "Strict", compConfig.Strict);
 570                         explicitOn = GetBool (atts, "Explicit", compConfig.Explicit);
 571                         linePragmasOn = GetBool (atts, "LinePragmas", false);
 572
 573                         string inherits = GetString (atts, "Inherits", null);
 574                         string srcRealPath = null;
 575
 576 #if NET_2_0
 577                         // In ASP 2, the source file is actually integrated with
 578                         // the generated file via the use of partial classes. This
 579                         // means that the code file has to be confirmed, but not
 580                         // used at this point.
 581                         src = GetString (atts, "CodeFile", null);
 582                         codeFileBaseClass = GetString (atts, "CodeFileBaseClass", null);
 583
 584                         if (src == null && codeFileBaseClass != null)
 585                                 ThrowParseException ("The 'CodeFileBaseClass' attribute cannot be used without a 'CodeFile' attribute");
 586
 587                         string legacySrc = GetString (atts, "Src", null);
 588                         if (legacySrc != null) {
 589                                 legacySrc = UrlUtils.Combine (BaseVirtualDir, legacySrc);
 590                                 if (src == null) {
 591                                         src = legacySrc;
 592                                         legacySrc = MapPath (legacySrc, false);
 593                                         srcRealPath = legacySrc;
 594                                         if (!File.Exists (srcRealPath))
 595                                                 ThrowParseException ("File " + src + " not found");
 596
 597                                         srcIsLegacy = true;
 598                                 } else
 599                                         legacySrc = MapPath (legacySrc, false);
 600
 601                                 GetAssemblyFromSource (legacySrc);
 602                                 AddDependency (legacySrc);
 603                         }
 604
 605                         if (!srcIsLegacy && src != null && inherits != null) {
 606                                 // Make sure the source exists
 607                                 src = UrlUtils.Combine (BaseVirtualDir, src);
 608                                 srcRealPath = MapPath (src, false);
 609
 610                                 if (!File.Exists (srcRealPath))
 611                                         ThrowParseException ("File " + src + " not found");
 612
 613                                 // We are going to create a partial class that shares
 614                                 // the same name as the inherits tag, so reset the
 615                                 // name. The base type is changed because it is the
 616                                 // code file's responsibilty to extend the classes
 617                                 // needed.
 618                                 partialClassName = inherits;
 619
 620                                 // Add the code file as an option to the
 621                                 // compiler. This lets both files be compiled at once.
 622                                 compilerOptions += " \"" + srcRealPath + "\"";
 623
 624                                 if (codeFileBaseClass != null) {
 625                                         try {
 626                                                 codeFileBaseClassType = LoadType (codeFileBaseClass);
 627                                         } catch (Exception) {
 628                                         }
 629
 630                                         if (codeFileBaseClassType == null)
 631                                                 ThrowParseException ("Could not load type '{0}'", codeFileBaseClass);
 632                                 }
 633                         } else if (inherits != null) {
 634                                 // We just set the inherits directly because this is a
 635                                 // Single-Page model.
 636                                 SetBaseType (inherits);
 637                         }
 638 #else
 639                         string src = GetString (atts, "Src", null);
 640
 641                         if (src != null) {
 642                                 srcRealPath = MapPath (src, false);
 643                                 srcAssembly = GetAssemblyFromSource (src);
 644                         }
 645
 646                         if (inherits != null)
 647                                 SetBaseType (inherits);
 648 #endif
 649                         if (src != null) {
 650                                 if (VirtualPathUtility.IsAbsolute (src))
 651                                         src = VirtualPathUtility.ToAppRelative (src);
 652                                 AddDependency (src);
 653                         }
 654
 655                         className = GetString (atts, "ClassName", null);
 656                         if (className != null) {
 657 #if NET_2_0
 658                                 string [] identifiers = className.Split ('.');
 659                                 for (int i = 0; i < identifiers.Length; i++)
 660                                         if (!CodeGenerator.IsValidLanguageIndependentIdentifier (identifiers [i]))
 661                                                 ThrowParseException (String.Format ("'{0}' is not a valid "
 662                                                         + "value for attribute 'classname'.", className));
 663 #else
 664                                 if (!CodeGenerator.IsValidLanguageIndependentIdentifier (className))
 665                                         ThrowParseException (String.Format ("'{0}' is not a valid "
 666                                                 + "value for attribute 'classname'.", className));
 667 #endif
 668                         }
 669
 670 #if NET_2_0
 671                         if (this is TemplateControlParser)
 672                                 metaResourceKey = GetString (atts, "meta:resourcekey", null);
 673
 674                         if (inherits != null && (this is PageParser || this is UserControlParser) && atts.Count > 0) {
 675                                 if (unknownMainAttributes == null)
 676                                         unknownMainAttributes = new List <UnknownAttributeDescriptor> ();
 677                                 string key, val;
 678
 679                                 foreach (DictionaryEntry de in atts) {
 680                                         key = de.Key as string;
 681                                         val = de.Value as string;
 682
 683                                         if (String.IsNullOrEmpty (key) || String.IsNullOrEmpty (val))
 684                                                 continue;
 685                                         CheckUnknownAttribute (key, val, inherits);
 686                                 }
 687                                 return;
 688                         }
 689 #endif
 690                         if (atts.Count > 0)
 691                                 ThrowParseException ("Unknown attribute: " + GetOneKey (atts));
 692                 }
 693
 694 #if NET_2_0
 695                 void CheckUnknownAttribute (string name, string val, string inherits)
 696                 {
 697                         MemberInfo mi = null;
 698                         bool missing = false;
 699                         string memberName = name.Trim ().ToLower (CultureInfo.InvariantCulture);
 700                         Type parent = codeFileBaseClassType;
 701
 702                         if (parent == null)
 703                                 parent = baseType;
 704
 705                         try {
 706                                 MemberInfo[] infos = parent.GetMember (memberName,
 707                                                                        MemberTypes.Field | MemberTypes.Property,
 708                                                                        BindingFlags.Public | BindingFlags.Instance |
 709                                                                        BindingFlags.IgnoreCase | BindingFlags.Static);
 710                                 if (infos.Length != 0) {
 711                                         // prefer public properties to public methods (it's what MS.NET does)
 712                                         foreach (MemberInfo tmp in infos) {
 713                                                 if (tmp is PropertyInfo) {
 714                                                         mi = tmp;
 715                                                         break;
 716                                                 }
 717                                         }
 718                                         if (mi == null)
 719                                                 mi = infos [0];
 720                                 } else
 721                                         missing = true;
 722                         } catch (Exception) {
 723                                 missing = true;
 724                         }
 725                         if (missing)
 726                                 ThrowParseException (
 727                                         "Error parsing attribute '{0}': Type '{1}' does not have a public property named '{0}'",
 728                                         memberName, inherits);
 729
 730                         Type memberType = null;
 731                         if (mi is PropertyInfo) {
 732                                 PropertyInfo pi = mi as PropertyInfo;
 733
 734                                 if (!pi.CanWrite)
 735                                         ThrowParseException (
 736                                                 "Error parsing attribute '{0}': The '{0}' property is read-only and cannot be set.",
 737                                                 memberName);
 738                                 memberType = pi.PropertyType;
 739                         } else if (mi is FieldInfo) {
 740                                 memberType = ((FieldInfo)mi).FieldType;
 741                         } else
 742                                 ThrowParseException ("Could not determine member the kind of '{0}' in base type '{1}",
 743                                                      memberName, inherits);
 744                         TypeConverter converter = TypeDescriptor.GetConverter (memberType);
 745                         bool convertible = true;
 746                         object value = null;
 747
 748                         if (converter == null || !converter.CanConvertFrom (typeof (string)))
 749                                 convertible = false;
 750
 751                         if (convertible) {
 752                                 try {
 753                                         value = converter.ConvertFromInvariantString (val);
 754                                 } catch (Exception) {
 755                                         convertible = false;
 756                                 }
 757                         }
 758
 759                         if (!convertible)
 760                                 ThrowParseException ("Error parsing attribute '{0}': Cannot create an object of type '{1}' from its string representation '{2}' for the '{3}' property.",
 761                                                      memberName, memberType, val, mi.Name);
 762
 763                         UnknownAttributeDescriptor desc = new UnknownAttributeDescriptor (mi, value);
 764                         unknownMainAttributes.Add (desc);
 765                 }
 766 #endif
 767
 768                 internal void SetBaseType (string type)
 769                 {
 770                         if (type == null || type == DefaultBaseTypeName) {
 771                                 baseType = DefaultBaseType;
 772                                 return;
 773                         }
 774
 775                         Type parent = null;
 776                         if (srcAssembly != null)
 777                                 parent = srcAssembly.GetType (type);
 778
 779                         if (parent == null)
 780                                 parent = LoadType (type);
 781
 782                         if (parent == null)
 783                                 ThrowParseException ("Cannot find type " + type);
 784
 785                         if (!DefaultBaseType.IsAssignableFrom (parent))
 786                                 ThrowParseException ("The parent type does not derive from " + DefaultBaseType);
 787
 788                         baseType = parent;
 789                 }
 790
 791                 internal void SetLanguage (string language)
 792                 {
 793                         this.language = language;
 794                         implicitLanguage = false;
 795                 }
 796
 797                 Assembly GetAssemblyFromSource (string vpath)
 798                 {
 799                         vpath = UrlUtils.Combine (BaseVirtualDir, vpath);
 800                         string realPath = MapPath (vpath, false);
 801                         if (!File.Exists (realPath))
 802                                 ThrowParseException ("File " + vpath + " not found");
 803
 804                         AddSourceDependency (vpath);
 805
 806                         CompilerResults result = CachingCompiler.Compile (language, realPath, realPath, assemblies, Debug);
 807                         if (result.NativeCompilerReturnValue != 0) {
 808                                 StreamReader reader = new StreamReader (realPath);
 809                                 throw new CompilationException (realPath, result.Errors, reader.ReadToEnd ());
 810                         }
 811
 812                         AddAssembly (result.CompiledAssembly, true);
 813                         return result.CompiledAssembly;
 814                 }
 815
 816                 internal abstract string DefaultBaseTypeName { get; }
 817                 internal abstract string DefaultDirectiveName { get; }
 818
 819                 internal Type DefaultBaseType {
 820                         get {
 821                                 Type type = Type.GetType (DefaultBaseTypeName, true);
 822
 823                                 return type;
 824                         }
 825                 }
 826
 827                 internal ILocation DirectiveLocation {
 828                         get { return directiveLocation; }
 829                 }
 830
 831                 internal string InputFile
 832                 {
 833                         get { return inputFile; }
 834                         set { inputFile = value; }
 835                 }
 836
 837 #if NET_2_0
 838                 internal bool IsPartial {
 839                         get { return (!srcIsLegacy && src != null); }
 840                 }
 841
 842                 internal string CodeBehindSource {
 843                         get { return src; }
 844                 }
 845
 846                 internal string PartialClassName {
 847                         get { return partialClassName; }
 848                 }
 849
 850                 internal string CodeFileBaseClass {
 851                         get { return codeFileBaseClass; }
 852                 }
 853
 854                 internal string MetaResourceKey {
 855                         get { return metaResourceKey; }
 856                 }
 857
 858                 internal Type CodeFileBaseClassType
 859                 {
 860                         get { return codeFileBaseClassType; }
 861                 }
 862
 863                 internal List <UnknownAttributeDescriptor> UnknownMainAttributes
 864                 {
 865                         get { return unknownMainAttributes; }
 866                 }
 867 #endif
 868
 869                 internal string Text {
 870                         get { return text; }
 871                         set { text = value; }
 872                 }
 873
 874                 internal Type BaseType {
 875                         get {
 876                                 if (baseType == null)
 877                                         SetBaseType (DefaultBaseTypeName);
 878
 879                                 return baseType;
 880                         }
 881                 }
 882
 883                 internal bool BaseTypeIsGlobal {
 884                         get { return baseTypeIsGlobal; }
 885                         set { baseTypeIsGlobal = value; }
 886                 }
 887
 888                 internal string ClassName {
 889                         get {
 890                                 if (className != null)
 891                                         return className;
 892
 893 #if NET_2_0
 894                                 string physPath = HttpContext.Current.Request.PhysicalApplicationPath;
 895                                 string inFile;
 896
 897                                 if (String.IsNullOrEmpty (inputFile)) {
 898                                         inFile = null;
 899                                         StreamReader sr = Reader as StreamReader;
 900
 901                                         if (sr != null) {
 902                                                 FileStream fr = sr.BaseStream as FileStream;
 903                                                 if (fr != null)
 904                                                         inFile = fr.Name;
 905                                         }
 906                                 } else
 907                                         inFile = inputFile;
 908
 909                                 if (String.IsNullOrEmpty (inFile))
 910                                         throw new HttpException ("Unable to determine class name - no input file found.");
 911
 912                                 if (StrUtils.StartsWith (inFile, physPath)) {
 913                                         className = inputFile.Substring (physPath.Length).ToLower (CultureInfo.InvariantCulture);
 914                                         className = className.Replace ('.', '_');
 915                                         className = className.Replace ('/', '_').Replace ('\\', '_');
 916                                 } else
 917 #endif
 918                                 className = Path.GetFileName (inputFile).Replace ('.', '_');
 919                                 className = className.Replace ('-', '_');
 920                                 className = className.Replace (' ', '_');
 921
 922                                 if (Char.IsDigit(className[0])) {
 923                                         className = "_" + className;
 924                                 }
 925
 926                                 return className;
 927                         }
 928                 }
 929
 930                 internal ArrayList Scripts {
 931                         get {
 932                                 if (scripts == null)
 933                                         scripts = new ArrayList ();
 934
 935                                 return scripts;
 936                         }
 937                 }
 938
 939                 internal ArrayList Imports {
 940                         get { return imports; }
 941                 }
 942
 943                 internal ArrayList Assemblies {
 944                         get {
 945                                 if (appAssemblyIndex != -1) {
 946                                         object o = assemblies [appAssemblyIndex];
 947                                         assemblies.RemoveAt (appAssemblyIndex);
 948                                         assemblies.Add (o);
 949                                         appAssemblyIndex = -1;
 950                                 }
 951
 952                                 return assemblies;
 953                         }
 954                 }
 955
 956                 internal ArrayList Interfaces {
 957                         get { return interfaces; }
 958                 }
 959
 960                 internal RootBuilder RootBuilder {
 961                         get { return rootBuilder; }
 962                         set { rootBuilder = value; }
 963                 }
 964
 965                 internal ArrayList Dependencies {
 966                         get { return dependencies; }
 967                         set { dependencies = value; }
 968                 }
 969
 970                 internal string CompilerOptions {
 971                         get { return compilerOptions; }
 972                 }
 973
 974                 internal string Language {
 975                         get { return language; }
 976                 }
 977
 978                 internal bool ImplicitLanguage {
 979                         get { return implicitLanguage; }
 980                 }
 981
 982                 internal bool StrictOn {
 983                         get { return strictOn; }
 984                 }
 985
 986                 internal bool ExplicitOn {
 987                         get { return explicitOn; }
 988                 }
 989
 990                 internal bool Debug {
 991                         get { return debug; }
 992                 }
 993
 994                 internal bool OutputCache {
 995                         get { return output_cache; }
 996                 }
 997
 998                 internal int OutputCacheDuration {
 999                         get { return oc_duration; }
1000                 }
1001
1002 #if NET_2_0
1003                 internal string OutputCacheVaryByContentEncodings {
1004                         get { return oc_content_encodings; }
1005                 }
1006
1007                 internal virtual TextReader Reader {
1008                         get { return null; }
1009                         set { /* no-op */ }
1010                 }
1011 #endif
1012
1013                 internal string OutputCacheVaryByHeader {
1014                         get { return oc_header; }
1015                 }
1016
1017                 internal string OutputCacheVaryByCustom {
1018                         get { return oc_custom; }
1019                 }
1020
1021                 internal string OutputCacheVaryByControls {
1022                         get { return oc_controls; }
1023                 }
1024
1025                 internal bool OutputCacheShared {
1026                         get { return oc_shared; }
1027                 }
1028
1029                 internal OutputCacheLocation OutputCacheLocation {
1030                         get { return oc_location; }
1031                 }
1032
1033                 internal string OutputCacheVaryByParam {
1034                         get { return oc_param; }
1035                 }
1036
1037 #if NET_2_0
1038                 internal PagesSection PagesConfig {
1039                         get {
1040                                 return WebConfigurationManager.GetSection ("system.web/pages") as PagesSection;
1041                         }
1042                 }
1043 #else
1044                 internal PagesConfiguration PagesConfig {
1045                         get { return PagesConfiguration.GetInstance (Context); }
1046                 }
1047 #endif
1048         }
1049 }
1050