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