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

   1 //
   2 // System.Web.UI.PageParser
   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.Collections;
  32 using System.Collections.Specialized;
  33 using System.Globalization;
  34 using System.Text;
  35 using System.Web;
  36 using System.Web.Compilation;
  37 using System.Web.Configuration;
  38 using System.Web.Util;
  39
  40 namespace System.Web.UI
  41 {
  42         public sealed class PageParser : TemplateControlParser
  43         {
  44                 bool enableSessionState = true;
  45                 bool haveTrace;
  46                 bool trace;
  47                 bool notBuffer;
  48                 TraceMode tracemode;
  49                 bool readonlySessionState;
  50                 string responseEncoding;
  51                 string contentType;
  52                 int codepage = -1;
  53                 int lcid = -1;
  54                 string culture;
  55                 string uiculture;
  56                 string errorPage;
  57                 bool validateRequest;
  58                 string clientTarget;
  59                 Type baseType = typeof (Page);
  60
  61                 public PageParser ()
  62                 {
  63                 }
  64
  65                 internal PageParser (string virtualPath, string inputFile, HttpContext context)
  66                 {
  67                         Context = context;
  68                         BaseVirtualDir = UrlUtils.GetDirectory (virtualPath);
  69                         InputFile = inputFile;
  70                         SetBaseType (PagesConfig.PageBaseType);
  71                         AddApplicationAssembly ();
  72                 }
  73
  74                 public static IHttpHandler GetCompiledPageInstance (string virtualPath,
  75                                                                     string inputFile,
  76                                                                     HttpContext context)
  77                 {
  78                         PageParser pp = new PageParser (virtualPath, inputFile, context);
  79                         IHttpHandler h = (IHttpHandler) pp.GetCompiledInstance ();
  80                         return h;
  81                 }
  82
  83                 internal override void ProcessMainAttributes (Hashtable atts)
  84                 {
  85                         string enabless = GetString (atts, "EnableSessionState", PagesConfig.EnableSessionState);
  86                         if (enabless != null) {
  87                                 readonlySessionState = (String.Compare (enabless, "readonly", true) == 0);
  88                                 if (readonlySessionState == true || String.Compare (enabless, "true", true) == 0) {
  89                                         enableSessionState = true;
  90                                 } else if (String.Compare (enabless, "false", true) == 0) {
  91                                         enableSessionState = false;
  92                                 } else {
  93                                         ThrowParseException ("Invalid value for EnableSessionState: " + enabless);
  94                                 }
  95                         }
  96
  97                         string cp = GetString (atts, "CodePage", null);
  98                         if (cp != null) {
  99                                 if (responseEncoding != null)
 100                                         ThrowParseException ("CodePage and ResponseEncoding are " +
 101                                                              "mutually exclusive.");
 102
 103                                 int codepage = 0;
 104                                 try {
 105                                         codepage = (int) UInt32.Parse (cp);
 106                                 } catch {
 107                                         ThrowParseException ("Invalid value for CodePage: " + cp);
 108                                 }
 109
 110                                 try {
 111                                         Encoding.GetEncoding (codepage);
 112                                 } catch {
 113                                         ThrowParseException ("Unsupported codepage: " + cp);
 114                                 }
 115                         }
 116
 117                         responseEncoding = GetString (atts, "ResponseEncoding", null);
 118                         if (responseEncoding != null) {
 119                                 if (codepage != -1)
 120                                         ThrowParseException ("CodePage and ResponseEncoding are " +
 121                                                              "mutually exclusive.");
 122
 123                                 try {
 124                                         Encoding.GetEncoding (responseEncoding);
 125                                 } catch {
 126                                         ThrowParseException ("Unsupported encoding: " + responseEncoding);
 127                                 }
 128                         }
 129
 130                         contentType = GetString (atts, "ContentType", null);
 131
 132                         string lcidStr = GetString (atts, "LCID", null);
 133                         if (lcidStr != null) {
 134                                 try {
 135                                         lcid = (int) UInt32.Parse (lcidStr);
 136                                 } catch {
 137                                         ThrowParseException ("Invalid value for LCID: " + lcid);
 138                                 }
 139
 140                                 CultureInfo ci = null;
 141                                 try {
 142                                         ci = new CultureInfo (lcid);
 143                                 } catch {
 144                                         ThrowParseException ("Unsupported LCID: " + lcid);
 145                                 }
 146
 147                                 if (ci.IsNeutralCulture) {
 148                                         string suggestedCulture = SuggestCulture (ci.Name);
 149                                         string fmt = "LCID attribute must be set to a non-neutral Culture.";
 150                                         if (suggestedCulture != null) {
 151                                                 ThrowParseException (fmt + " Please try one of these: " +
 152                                                                      suggestedCulture);
 153                                         } else {
 154                                                 ThrowParseException (fmt);
 155                                         }
 156                                 }
 157                         }
 158
 159                         culture = GetString (atts, "Culture", null);
 160                         if (culture != null) {
 161                                 if (lcidStr != null)
 162                                         ThrowParseException ("Culture and LCID are mutually exclusive.");
 163
 164                                 CultureInfo ci = null;
 165                                 try {
 166                                         ci = new CultureInfo (culture);
 167                                 } catch {
 168                                         ThrowParseException ("Unsupported Culture: " + culture);
 169                                 }
 170
 171                                 if (ci.IsNeutralCulture) {
 172                                         string suggestedCulture = SuggestCulture (culture);
 173                                         string fmt = "Culture attribute must be set to a non-neutral Culture.";
 174                                         if (suggestedCulture != null)
 175                                                 ThrowParseException (fmt +
 176                                                                 " Please try one of these: " + suggestedCulture);
 177                                         else
 178                                                 ThrowParseException (fmt);
 179                                 }
 180                         }
 181
 182                         uiculture = GetString (atts, "UICulture", null);
 183                         if (uiculture != null) {
 184                                 CultureInfo ci = null;
 185                                 try {
 186                                         ci = new CultureInfo (uiculture);
 187                                 } catch {
 188                                         ThrowParseException ("Unsupported Culture: " + uiculture);
 189                                 }
 190
 191                                 if (ci.IsNeutralCulture) {
 192                                         string suggestedCulture = SuggestCulture (uiculture);
 193                                         string fmt = "UICulture attribute must be set to a non-neutral Culture.";
 194                                         if (suggestedCulture != null)
 195                                                 ThrowParseException (fmt +
 196                                                                 " Please try one of these: " + suggestedCulture);
 197                                         else
 198                                                 ThrowParseException (fmt);
 199                                 }
 200                         }
 201
 202                         string tracestr = GetString (atts, "Trace", null);
 203                         if (tracestr != null) {
 204                                 haveTrace = true;
 205                                 atts ["Trace"] = tracestr;
 206                                 trace = GetBool (atts, "Trace", false);
 207                         }
 208
 209                         string tracemodes = GetString (atts, "TraceMode", null);
 210                         if (tracemodes != null) {
 211                                 bool valid = true;
 212                                 try {
 213                                         tracemode = (TraceMode) Enum.Parse (typeof (TraceMode), tracemodes, false);
 214                                 } catch {
 215                                         valid = false;
 216                                 }
 217
 218                                 if (!valid || tracemode == TraceMode.Default)
 219                                         ThrowParseException ("The 'tracemode' attribute is case sensitive and must be " +
 220                                                         "one of the following values: SortByTime, SortByCategory.");
 221                         }
 222
 223                         errorPage = GetString (atts, "ErrorPage", null);
 224                         validateRequest = GetBool (atts, "ValidateRequest", PagesConfig.ValidateRequest);
 225                         clientTarget = GetString (atts, "ClientTarget", null);
 226                         if (clientTarget != null) {
 227                                 NameValueCollection coll;
 228                                 coll = (NameValueCollection) Context.GetConfig ("system.web/clientTarget");
 229                                 if (coll == null || coll [clientTarget] == null) {
 230                                         ThrowParseException (String.Format (
 231                                                         "ClientTarget '{0}' is an invalid alias. See the " +
 232                                                         "documentation for <clientTarget> config. section.",
 233                                                         clientTarget));
 234                                 }
 235                                 clientTarget = (string) coll [clientTarget];
 236                         }
 237
 238                         notBuffer = !GetBool (atts, "Buffer", true);
 239
 240                         // Ignored by now
 241                         GetString (atts, "EnableViewStateMac", null);
 242                         GetString (atts, "SmartNavigation", null);
 243
 244                         base.ProcessMainAttributes (atts);
 245                 }
 246
 247                 static string SuggestCulture (string culture)
 248                 {
 249                         string retval = null;
 250                         foreach (CultureInfo ci in CultureInfo.GetCultures (CultureTypes.SpecificCultures)) {
 251                                 if (ci.Name.StartsWith (culture))
 252                                         retval += ci.Name + " ";
 253                         }
 254                         return retval;
 255                 }
 256
 257                 protected override Type CompileIntoType ()
 258                 {
 259                         AspGenerator generator = new AspGenerator (this);
 260                         return generator.GetCompiledType ();
 261                 }
 262
 263                 internal bool EnableSessionState {
 264                         get { return enableSessionState; }
 265                 }
 266
 267                 internal bool ReadOnlySessionState {
 268                         get { return readonlySessionState; }
 269                 }
 270
 271                 internal bool HaveTrace {
 272                         get { return haveTrace; }
 273                 }
 274
 275                 internal bool Trace {
 276                         get { return trace; }
 277                 }
 278
 279                 internal TraceMode TraceMode {
 280                         get { return tracemode; }
 281                 }
 282
 283                 internal override Type DefaultBaseType {
 284                         get { return baseType; }
 285                 }
 286
 287                 internal override string DefaultBaseTypeName {
 288                         get { return "System.Web.UI.Page"; }
 289                 }
 290
 291                 internal override string DefaultDirectiveName {
 292                         get { return "page"; }
 293                 }
 294
 295                 internal string ResponseEncoding {
 296                         get { return responseEncoding; }
 297                 }
 298
 299                 internal string ContentType {
 300                         get { return contentType; }
 301                 }
 302
 303                 internal int CodePage {
 304                         get { return codepage; }
 305                 }
 306
 307                 internal string Culture {
 308                         get { return culture; }
 309                 }
 310
 311                 internal string UICulture {
 312                         get { return uiculture; }
 313                 }
 314
 315                 internal int LCID {
 316                         get { return lcid; }
 317                 }
 318
 319                 internal string ErrorPage {
 320                         get { return errorPage; }
 321                 }
 322
 323                 internal bool ValidateRequest {
 324                         get { return validateRequest; }
 325                 }
 326
 327                 internal string ClientTarget {
 328                         get { return clientTarget; }
 329                 }
 330
 331                 internal bool NotBuffer {
 332                         get { return notBuffer; }
 333                 }
 334         }
 335 }
 336