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