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