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                         LoadPagesConfigDefaults ();
  61                 }
  62
  63                 internal virtual void LoadPagesConfigDefaults ()
  64                 {
  65 #if NET_2_0
  66                         PagesSection ps = PagesConfig;
  67 #else
  68                         PagesConfiguration ps = PagesConfig;
  69 #endif
  70
  71 #if NET_1_1
  72                         autoEventWireup = ps.AutoEventWireup;
  73                         enableViewState = ps.EnableViewState;
  74 #endif
  75 #if NET_2_0
  76                         compilationMode = ps.CompilationMode;
  77 #endif
  78                 }
  79
  80                 internal override void ProcessMainAttributes (Hashtable atts)
  81                 {
  82                         autoEventWireup = GetBool (atts, "AutoEventWireup", autoEventWireup);
  83                         enableViewState = GetBool (atts, "EnableViewState", enableViewState);
  84 #if NET_2_0
  85                         string cmode = GetString (atts, "CompilationMode", compilationMode.ToString ());
  86                         if (!String.IsNullOrEmpty (cmode)) {
  87                                 if (String.Compare (cmode, "always", StringComparison.InvariantCultureIgnoreCase) == 0)
  88                                         compilationMode = CompilationMode.Always;
  89                                 else if (String.Compare (cmode, "auto", StringComparison.InvariantCultureIgnoreCase) == 0)
  90                                         compilationMode = CompilationMode.Auto;
  91                                 else if (String.Compare (cmode, "never", StringComparison.InvariantCultureIgnoreCase) == 0)
  92                                         compilationMode = CompilationMode.Never;
  93                                 else
  94                                         ThrowParseException ("Invalid value of the CompilationMode attribute");
  95                         }
  96 #endif
  97                         atts.Remove ("TargetSchema"); // Ignored
  98
  99                         base.ProcessMainAttributes (atts);
 100                 }
 101
 102                 internal object GetCompiledInstance ()
 103                 {
 104                         Type type = CompileIntoType ();
 105                         if (type == null)
 106                                 return null;
 107
 108                         object ctrl = Activator.CreateInstance (type);
 109                         if (ctrl == null)
 110                                 return null;
 111
 112                         HandleOptions (ctrl);
 113                         return ctrl;
 114                 }
 115
 116                 internal override void AddDirective (string directive, Hashtable atts)
 117                 {
 118                         int cmp = String.Compare ("Register", directive, true);
 119                         if (cmp == 0) {
 120                                 string tagprefix = GetString (atts, "TagPrefix", null);
 121                                 if (tagprefix == null || tagprefix.Trim () == "")
 122                                         ThrowParseException ("No TagPrefix attribute found.");
 123
 124                                 string ns = GetString (atts, "Namespace", null);
 125                                 string assembly = GetString (atts, "Assembly", null);
 126
 127 #if !NET_2_0
 128                                 if (ns != null && assembly == null)
 129                                         ThrowParseException ("Need an Assembly attribute with Namespace.");
 130 #endif
 131
 132                                 if (ns == null && assembly != null)
 133                                         ThrowParseException ("Need a Namespace attribute with Assembly.");
 134
 135                                 if (ns != null) {
 136                                         if (atts.Count != 0)
 137                                                 ThrowParseException ("Unknown attribute: " + GetOneKey (atts));
 138
 139                                         RegisterNamespace (tagprefix, ns, assembly);
 140                                         return;
 141                                 }
 142
 143                                 string tagname = GetString (atts, "TagName", null);
 144                                 string src = GetString (atts, "Src", null);
 145
 146                                 if (tagname == null && src != null)
 147                                         ThrowParseException ("Need a TagName attribute with Src.");
 148
 149                                 if (tagname != null && src == null)
 150                                         ThrowParseException ("Need a Src attribute with TagName.");
 151
 152                                 if (!src.EndsWith (".ascx"))
 153                                         ThrowParseException ("Source file extension for controls must be .ascx");
 154
 155                                 RegisterCustomControl (tagprefix, tagname, src);
 156                                 return;
 157                         }
 158
 159                         cmp = String.Compare ("Reference", directive, true);
 160                         if (cmp == 0) {
 161                                 string page = GetString (atts, "Page", null);
 162                                 string control = GetString (atts, "Control", null);
 163
 164                                 bool is_page = (page != null);
 165                                 if (!is_page && control == null)
 166                                         ThrowParseException ("Must provide 'page' or 'control' attribute");
 167
 168                                 if (is_page && control != null)
 169                                         ThrowParseException ("'page' and 'control' are mutually exclusive");
 170
 171                                 string filepath = (!is_page) ? control : page;
 172                                 filepath = MapPath (filepath);
 173                                 AddDependency (filepath);
 174                                 Type ctype;
 175                                 if (is_page) {
 176                                         PageParser pp = new PageParser (page, filepath, Context);
 177                                         ctype = pp.CompileIntoType ();
 178                                 } else {
 179                                         ctype = UserControlParser.GetCompiledType (control, filepath, Dependencies, Context);
 180                                 }
 181
 182                                 AddAssembly (ctype.Assembly, true);
 183                                 if (atts.Count != 0)
 184                                         ThrowParseException ("Unknown attribute: " + GetOneKey (atts));
 185
 186                                 return;
 187                         }
 188
 189                         base.AddDirective (directive, atts);
 190                 }
 191
 192                 internal override void HandleOptions (object obj)
 193                 {
 194                         base.HandleOptions (obj);
 195
 196                         Control ctrl = obj as Control;
 197                         ctrl.AutoEventWireup = autoEventWireup;
 198                         ctrl.EnableViewState = enableViewState;
 199                 }
 200
 201                 internal bool AutoEventWireup {
 202                         get { return autoEventWireup; }
 203                 }
 204
 205                 internal bool EnableViewState {
 206                         get { return enableViewState; }
 207                 }
 208
 209 #if NET_2_0
 210                 internal CompilationMode CompilationMode {
 211                         get { return compilationMode; }
 212                 }
 213
 214                 internal TextReader Reader {
 215                         get { return reader; }
 216                         set { reader = value; }
 217                 }
 218 #endif
 219         }
 220 }
 221