mcs/class/System.Web/System.Web.Compilation/PageCompiler.cs

   1 //
   2 // System.Web.Compilation.PageCompiler
   3 //
   4 // Authors:
   5 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   6 //
   7 // (C) 2002,2003 Ximian, Inc (http://www.ximian.com)
   8 //
   9
  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 using System;
  31 using System.CodeDom;
  32 using System.IO;
  33 using System.Reflection;
  34 using System.Text;
  35 using System.Web.Configuration;
  36 using System.Web.UI;
  37 using System.Web.SessionState;
  38 using System.Web.Util;
  39 #if NET_2_0
  40 using System.Web.Profile;
  41 #endif
  42
  43 namespace System.Web.Compilation
  44 {
  45         class PageCompiler : TemplateControlCompiler
  46         {
  47                 PageParser pageParser;
  48                 static CodeTypeReference intRef = new CodeTypeReference (typeof (int));
  49
  50                 public PageCompiler (PageParser pageParser)
  51                         : base (pageParser)
  52                 {
  53                         this.pageParser = pageParser;
  54                 }
  55
  56                 protected override void CreateConstructor (CodeStatementCollection localVars,
  57                                                            CodeStatementCollection trueStmt)
  58                 {
  59                         if (pageParser.ClientTarget != null) {
  60                                 CodeExpression prop;
  61                                 prop = new CodePropertyReferenceExpression (thisRef, "ClientTarget");
  62                                 CodeExpression ct = new CodePrimitiveExpression (pageParser.ClientTarget);
  63                                 if (localVars == null)
  64                                         localVars = new CodeStatementCollection ();
  65                                 localVars.Add (new CodeAssignStatement (prop, ct));
  66                         }
  67
  68                         base.CreateConstructor (localVars, trueStmt);
  69                 }
  70
  71                 protected override void AddInterfaces ()
  72                 {
  73                         base.AddInterfaces ();
  74                         CodeTypeReference cref;
  75
  76                         if (pageParser.EnableSessionState) {
  77                                 cref = new CodeTypeReference (typeof(IRequiresSessionState));
  78 #if NET_2_0
  79                                 cref.Options |= CodeTypeReferenceOptions.GlobalReference;
  80                                 if (partialClass != null)
  81                                         partialClass.BaseTypes.Add (cref);
  82                                 else
  83 #endif
  84                                         mainClass.BaseTypes.Add (cref);
  85                         }
  86
  87                         if (pageParser.ReadOnlySessionState) {
  88                                 cref = new CodeTypeReference (typeof (IReadOnlySessionState));
  89 #if NET_2_0
  90                                 cref.Options |= CodeTypeReferenceOptions.GlobalReference;
  91                                 if (partialClass != null)
  92                                         partialClass.BaseTypes.Add (cref);
  93                                 else
  94 #endif
  95                                         mainClass.BaseTypes.Add (cref);
  96                         }
  97                 }
  98
  99                 void CreateGetTypeHashCode ()
 100                 {
 101                         CodeMemberMethod method = new CodeMemberMethod ();
 102                         method.ReturnType = intRef;
 103                         method.Name = "GetTypeHashCode";
 104                         method.Attributes = MemberAttributes.Public | MemberAttributes.Override;
 105                         Random rnd = new Random (pageParser.InputFile.GetHashCode ());
 106                         method.Statements.Add (new CodeMethodReturnStatement (new CodePrimitiveExpression (rnd.Next ())));
 107                         mainClass.Members.Add (method);
 108                 }
 109
 110                 static CodeAssignStatement CreatePropertyAssign (CodeExpression expr, string name, object value)
 111                 {
 112                         CodePropertyReferenceExpression prop;
 113                         prop = new CodePropertyReferenceExpression (expr, name);
 114                         CodePrimitiveExpression prim;
 115                         prim = new CodePrimitiveExpression (value);
 116                         return new CodeAssignStatement (prop, prim);
 117                 }
 118
 119                 static CodeAssignStatement CreatePropertyAssign (string name, object value)
 120                 {
 121                         return CreatePropertyAssign (thisRef, name, value);
 122                 }
 123
 124                 protected override void AddStatementsToInitMethod (CodeMemberMethod method)
 125                 {
 126 #if NET_2_0
 127                         CodeMethodInvokeExpression expr = new CodeMethodInvokeExpression (thisRef, "InitializeCulture");
 128                         method.Statements.Add (new CodeExpressionStatement (expr));
 129
 130                         CodeArgumentReferenceExpression ctrlVar = new CodeArgumentReferenceExpression("__ctrl");
 131                         if (pageParser.Title != null)
 132                                 method.Statements.Add (CreatePropertyAssign (ctrlVar, "Title", pageParser.Title));
 133
 134                         if (pageParser.MasterPageFile != null)
 135                                 method.Statements.Add (CreatePropertyAssign (ctrlVar, "MasterPageFile", pageParser.MasterPageFile));
 136
 137                         if (pageParser.Theme != null)
 138                                 method.Statements.Add (CreatePropertyAssign (ctrlVar, "Theme", pageParser.Theme));
 139
 140                         if (pageParser.StyleSheetTheme != null)
 141                                 method.Statements.Add (CreatePropertyAssign (ctrlVar, "StyleSheetTheme", pageParser.StyleSheetTheme));
 142 #endif
 143                 }
 144
 145                 protected override void PrependStatementsToFrameworkInitialize (CodeMemberMethod method)
 146                 {
 147                         base.PrependStatementsToFrameworkInitialize (method);
 148 #if NET_2_0
 149                         if (pageParser.StyleSheetTheme != null)
 150                                 method.Statements.Add (CreatePropertyAssign ("StyleSheetTheme", pageParser.StyleSheetTheme));
 151 #endif
 152                 }
 153
 154                 protected override void AppendStatementsToFrameworkInitialize (CodeMemberMethod method)
 155                 {
 156                         string responseEncoding = pageParser.ResponseEncoding;
 157                         if (responseEncoding != null)
 158                                 method.Statements.Add (CreatePropertyAssign ("ResponseEncoding", responseEncoding));
 159
 160                         int codepage = pageParser.CodePage;
 161                         if (codepage != -1)
 162                                 method.Statements.Add (CreatePropertyAssign ("CodePage", codepage));
 163
 164                         string contentType = pageParser.ContentType;
 165                         if (contentType != null)
 166                                 method.Statements.Add (CreatePropertyAssign ("ContentType", contentType));
 167
 168                         if (pageParser.OutputCache) {
 169                                 CodeMethodReferenceExpression init = new CodeMethodReferenceExpression (null,
 170                                                 "InitOutputCache");
 171                                 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (init,
 172                                                 OutputCacheParams ());
 173                                 method.Statements.Add (invoke);
 174                         }
 175
 176                         int lcid = pageParser.LCID;
 177                         if (lcid != -1)
 178                                 method.Statements.Add (CreatePropertyAssign ("LCID", lcid));
 179
 180                         string culture = pageParser.Culture;
 181                         if (culture != null)
 182                                 method.Statements.Add (CreatePropertyAssign ("Culture", culture));
 183
 184                         culture = pageParser.UICulture;
 185                         if (culture != null)
 186                                 method.Statements.Add (CreatePropertyAssign ("UICulture", culture));
 187
 188                         string errorPage = pageParser.ErrorPage;
 189                         if (errorPage != null)
 190                                 method.Statements.Add (CreatePropertyAssign ("ErrorPage", errorPage));
 191
 192                         if (pageParser.HaveTrace) {
 193                                 CodeAssignStatement stmt = new CodeAssignStatement ();
 194                                 stmt.Left = new CodePropertyReferenceExpression (thisRef, "TraceEnabled");
 195                                 stmt.Right = new CodePrimitiveExpression (pageParser.Trace);
 196                                 method.Statements.Add (stmt);
 197                         }
 198
 199                         if (pageParser.TraceMode != TraceMode.Default) {
 200                                 CodeAssignStatement stmt = new CodeAssignStatement ();
 201                                 CodeTypeReferenceExpression tm = new CodeTypeReferenceExpression ("System.Web.TraceMode");
 202                                 stmt.Left = new CodePropertyReferenceExpression (thisRef, "TraceModeValue");
 203                                 stmt.Right = new CodeFieldReferenceExpression (tm, pageParser.TraceMode.ToString ());
 204                                 method.Statements.Add (stmt);
 205                         }
 206
 207                         if (pageParser.NotBuffer) {
 208                                 CodeAssignStatement stmt = new CodeAssignStatement ();
 209                                 stmt.Left = new CodePropertyReferenceExpression (thisRef, "Buffer");
 210                                 stmt.Right = new CodePrimitiveExpression (false);
 211                                 method.Statements.Add (stmt);
 212                         }
 213
 214 #if NET_1_1
 215                         if (pageParser.ValidateRequest) {
 216                                 CodeMethodInvokeExpression expr = new CodeMethodInvokeExpression ();
 217                                 CodePropertyReferenceExpression prop;
 218                                 prop = new CodePropertyReferenceExpression (thisRef, "Request");
 219                                 expr.Method = new CodeMethodReferenceExpression (prop, "ValidateInput");
 220                                 method.Statements.Add (expr);
 221                         }
 222 #endif
 223 #if NET_2_0
 224                         if (!pageParser.EnableEventValidation) {
 225                                 CodeAssignStatement stmt = new CodeAssignStatement ();
 226                                 CodePropertyReferenceExpression prop;
 227                                 prop = new CodePropertyReferenceExpression (thisRef, "EnableEventValidation");
 228                                 stmt.Left = prop;
 229                                 stmt.Right = new CodePrimitiveExpression (pageParser.EnableEventValidation);
 230                                 method.Statements.Add (stmt);
 231                         }
 232
 233                         if (pageParser.MaintainScrollPositionOnPostBack) {
 234                                 CodeAssignStatement stmt = new CodeAssignStatement ();
 235                                 CodePropertyReferenceExpression prop;
 236                                 prop = new CodePropertyReferenceExpression (thisRef, "MaintainScrollPositionOnPostBack");
 237                                 stmt.Left = prop;
 238                                 stmt.Right = new CodePrimitiveExpression (pageParser.MaintainScrollPositionOnPostBack);
 239                                 method.Statements.Add (stmt);
 240                         }
 241 #endif
 242
 243                         base.AppendStatementsToFrameworkInitialize (method);
 244                 }
 245
 246                 private CodeExpression[] OutputCacheParams ()
 247                 {
 248                         return new CodeExpression [] {
 249                                 new CodePrimitiveExpression (pageParser.OutputCacheDuration),
 250                                 new CodePrimitiveExpression (pageParser.OutputCacheVaryByHeader),
 251                                 new CodePrimitiveExpression (pageParser.OutputCacheVaryByCustom),
 252                                 new CodeSnippetExpression (typeof (OutputCacheLocation).ToString () +
 253                                                 "." + pageParser.OutputCacheLocation.ToString ()),
 254                                 new CodePrimitiveExpression (pageParser.OutputCacheVaryByParam)
 255                                 };
 256                 }
 257
 258                 protected internal override void CreateMethods ()
 259                 {
 260                         base.CreateMethods ();
 261
 262 #if NET_2_0
 263                         CreateProfileProperty ();
 264                         if (pageParser.MasterType != null) {
 265                                 CodeMemberProperty mprop = new CodeMemberProperty ();
 266                                 mprop.Name = "Master";
 267                                 mprop.Type = new CodeTypeReference (pageParser.MasterType);
 268                                 mprop.Attributes = MemberAttributes.Public | MemberAttributes.New;
 269                                 CodeExpression prop = new CodePropertyReferenceExpression (new CodeBaseReferenceExpression (), "Master");
 270                                 prop = new CodeCastExpression (pageParser.MasterType, prop);
 271                                 mprop.GetStatements.Add (new CodeMethodReturnStatement (prop));
 272                                 mainClass.Members.Add (mprop);
 273                         }
 274 #endif
 275
 276                         CreateGetTypeHashCode ();
 277                 }
 278
 279                 public static Type CompilePageType (PageParser pageParser)
 280                 {
 281                         PageCompiler compiler = new PageCompiler (pageParser);
 282                         return compiler.GetCompiledType ();
 283                 }
 284         }
 285 }
 286
 287