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

   1 //
   2 // System.Web.UI.TemplateControlParser
   3 //
   4 // Authors:
   5 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   6 //
   7 // (C) 2002 Ximian, Inc (http://www.ximian.com)
   8 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29
  30 using System.Collections;
  31 using System.IO;
  32 using System.Reflection;
  33 using System.Security.Permissions;
  34 using System.Web.Compilation;
  35 using System.Web.Configuration;
  36 using System.Web.Util;
  37
  38 namespace System.Web.UI {
  39
  40         // CAS
  41         [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  42         [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  43         public abstract class TemplateControlParser
  44 #if NET_2_0
  45                 : BaseTemplateParser
  46 #else
  47                 : TemplateParser
  48 #endif
  49         {
  50
  51                 bool autoEventWireup = true;
  52                 bool enableViewState = true;
  53 #if NET_2_0
  54                 CompilationMode compilationMode = CompilationMode.Always;
  55                 TextReader reader;
  56 #endif
  57
  58                 protected TemplateControlParser ()
  59                 {
  60                         LoadConfigDefaults ();
  61                 }
  62
  63                 internal override void LoadConfigDefaults ()
  64                 {
  65                         base.LoadConfigDefaults ();
  66 #if NET_2_0
  67                         PagesSection ps = PagesConfig;
  68 #else
  69                         PagesConfiguration ps = PagesConfig;
  70 #endif
  71
  72 #if NET_1_1
  73                         autoEventWireup = ps.AutoEventWireup;
  74                         enableViewState = ps.EnableViewState;
  75 #endif
  76 #if NET_2_0
  77                         compilationMode = ps.CompilationMode;
  78 #endif
  79                 }
  80
  81                 internal override void ProcessMainAttributes (Hashtable atts)
  82                 {
  83                         autoEventWireup = GetBool (atts, "AutoEventWireup", autoEventWireup);
  84                         enableViewState = GetBool (atts, "EnableViewState", enableViewState);
  85 #if NET_2_0
  86                         string cmode = GetString (atts, "CompilationMode", compilationMode.ToString ());
  87                         if (!String.IsNullOrEmpty (cmode)) {
  88                                 if (String.Compare (cmode, "always", StringComparison.InvariantCultureIgnoreCase) == 0)
  89                                         compilationMode = CompilationMode.Always;
  90                                 else if (String.Compare (cmode, "auto", StringComparison.InvariantCultureIgnoreCase) == 0)
  91                                         compilationMode = CompilationMode.Auto;
  92                                 else if (String.Compare (cmode, "never", StringComparison.InvariantCultureIgnoreCase) == 0)
  93                                         compilationMode = CompilationMode.Never;
  94                                 else
  95                                         ThrowParseException ("Invalid value of the CompilationMode attribute");
  96                         }
  97 #endif
  98                         atts.Remove ("TargetSchema"); // Ignored
  99
 100                         base.ProcessMainAttributes (atts);
 101                 }
 102
 103                 internal object GetCompiledInstance ()
 104                 {
 105                         Type type = CompileIntoType ();
 106                         if (type == null)
 107                                 return null;
 108
 109                         object ctrl = Activator.CreateInstance (type);
 110                         if (ctrl == null)
 111                                 return null;
 112
 113                         HandleOptions (ctrl);
 114                         return ctrl;
 115                 }
 116
 117                 internal override void AddDirective (string directive, Hashtable atts)
 118                 {
 119                         int cmp = String.Compare ("Register", directive, true);
 120                         if (cmp == 0) {
 121                                 string tagprefix = GetString (atts, "TagPrefix", null);
 122                                 if (tagprefix == null || tagprefix.Trim () == "")
 123                                         ThrowParseException ("No TagPrefix attribute found.");
 124
 125                                 string ns = GetString (atts, "Namespace", null);
 126                                 string assembly = GetString (atts, "Assembly", null);
 127
 128 #if !NET_2_0
 129                                 if (ns != null && assembly == null)
 130                                         ThrowParseException ("Need an Assembly attribute with Namespace.");
 131 #endif
 132
 133                                 if (ns == null && assembly != null)
 134                                         ThrowParseException ("Need a Namespace attribute with Assembly.");
 135
 136                                 if (ns != null) {
 137                                         if (atts.Count != 0)
 138                                                 ThrowParseException ("Unknown attribute: " + GetOneKey (atts));
 139
 140                                         RegisterNamespace (tagprefix, ns, assembly);
 141                                         return;
 142                                 }
 143
 144                                 string tagname = GetString (atts, "TagName", null);
 145                                 string src = GetString (atts, "Src", null);
 146
 147                                 if (tagname == null && src != null)
 148                                         ThrowParseException ("Need a TagName attribute with Src.");
 149
 150                                 if (tagname != null && src == null)
 151                                         ThrowParseException ("Need a Src attribute with TagName.");
 152
 153 #if !NET_2_0
 154                                 if (!StrUtils.EndsWith (src, ".ascx", true))
 155                                         ThrowParseException ("Source file extension for controls must be .ascx");
 156 #endif
 157
 158                                 RegisterCustomControl (tagprefix, tagname, src);
 159                                 return;
 160                         }
 161
 162                         cmp = String.Compare ("Reference", directive, true);
 163                         if (cmp == 0) {
 164                                 string page = GetString (atts, "Page", null);
 165                                 string control = GetString (atts, "Control", null);
 166
 167                                 bool is_page = (page != null);
 168                                 if (!is_page && control == null)
 169                                         ThrowParseException ("Must provide 'page' or 'control' attribute");
 170
 171                                 if (is_page && control != null)
 172                                         ThrowParseException ("'page' and 'control' are mutually exclusive");
 173
 174                                 string filepath = (!is_page) ? control : page;
 175                                 AddDependency (filepath);
 176
 177                                 filepath = MapPath (filepath);
 178                                 Type ctype;
 179                                 if (is_page) {
 180                                         PageParser pp = new PageParser (page, filepath, Context);
 181                                         ctype = pp.CompileIntoType ();
 182                                 } else {
 183 #if NET_2_0
 184                                         ctype = BuildManager.GetCompiledType (control);
 185 #else
 186                                         ctype = UserControlParser.GetCompiledType (control, filepath, Dependencies, Context);
 187 #endif
 188                                 }
 189
 190                                 AddAssembly (ctype.Assembly, true);
 191                                 if (atts.Count != 0)
 192                                         ThrowParseException ("Unknown attribute: " + GetOneKey (atts));
 193
 194                                 return;
 195                         }
 196
 197                         base.AddDirective (directive, atts);
 198                 }
 199
 200                 internal override void HandleOptions (object obj)
 201                 {
 202                         base.HandleOptions (obj);
 203
 204                         Control ctrl = obj as Control;
 205                         ctrl.AutoEventWireup = autoEventWireup;
 206                         ctrl.EnableViewState = enableViewState;
 207                 }
 208
 209                 internal bool AutoEventWireup {
 210                         get { return autoEventWireup; }
 211                 }
 212
 213                 internal bool EnableViewState {
 214                         get { return enableViewState; }
 215                 }
 216
 217 #if NET_2_0
 218                 internal CompilationMode CompilationMode {
 219                         get { return compilationMode; }
 220                 }
 221
 222                 internal override TextReader Reader {
 223                         get { return reader; }
 224                         set { reader = value; }
 225                 }
 226 #endif
 227         }
 228 }
 229