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 #if NET_2_0
  62                 string masterPage;
  63 #endif
  64
  65                 public PageParser ()
  66                 {
  67                 }
  68
  69                 internal PageParser (string virtualPath, string inputFile, HttpContext context)
  70                 {
  71                         Context = context;
  72                         BaseVirtualDir = UrlUtils.GetDirectory (virtualPath);
  73                         InputFile = inputFile;
  74                         SetBaseType (PagesConfig.PageBaseType);
  75                         AddApplicationAssembly ();
  76                 }
  77
  78                 public static IHttpHandler GetCompiledPageInstance (string virtualPath,
  79                                                                     string inputFile,
  80                                                                     HttpContext context)
  81                 {
  82                         PageParser pp = new PageParser (virtualPath, inputFile, context);
  83                         IHttpHandler h = (IHttpHandler) pp.GetCompiledInstance ();
  84                         return h;
  85                 }
  86
  87                 internal override void ProcessMainAttributes (Hashtable atts)
  88                 {
  89                         string enabless = GetString (atts, "EnableSessionState", PagesConfig.EnableSessionState);
  90                         if (enabless != null) {
  91                                 readonlySessionState = (String.Compare (enabless, "readonly", true) == 0);
  92                                 if (readonlySessionState == true || String.Compare (enabless, "true", true) == 0) {
  93                                         enableSessionState = true;
  94                                 } else if (String.Compare (enabless, "false", true) == 0) {
  95                                         enableSessionState = false;
  96                                 } else {
  97                                         ThrowParseException ("Invalid value for EnableSessionState: " + enabless);
  98                                 }
  99                         }
 100
 101                         string cp = GetString (atts, "CodePage", null);
 102                         if (cp != null) {
 103                                 if (responseEncoding != null)
 104                                         ThrowParseException ("CodePage and ResponseEncoding are " +
 105                                                              "mutually exclusive.");
 106
 107                                 int codepage = 0;
 108                                 try {
 109                                         codepage = (int) UInt32.Parse (cp);
 110                                 } catch {
 111                                         ThrowParseException ("Invalid value for CodePage: " + cp);
 112                                 }
 113
 114                                 try {
 115                                         Encoding.GetEncoding (codepage);
 116                                 } catch {
 117                                         ThrowParseException ("Unsupported codepage: " + cp);
 118                                 }
 119                         }
 120
 121                         responseEncoding = GetString (atts, "ResponseEncoding", null);
 122                         if (responseEncoding != null) {
 123                                 if (codepage != -1)
 124                                         ThrowParseException ("CodePage and ResponseEncoding are " +
 125                                                              "mutually exclusive.");
 126
 127                                 try {
 128                                         Encoding.GetEncoding (responseEncoding);
 129                                 } catch {
 130                                         ThrowParseException ("Unsupported encoding: " + responseEncoding);
 131                                 }
 132                         }
 133
 134                         contentType = GetString (atts, "ContentType", null);
 135
 136                         string lcidStr = GetString (atts, "LCID", null);
 137                         if (lcidStr != null) {
 138                                 try {
 139                                         lcid = (int) UInt32.Parse (lcidStr);
 140                                 } catch {
 141                                         ThrowParseException ("Invalid value for LCID: " + lcid);
 142                                 }
 143
 144                                 CultureInfo ci = null;
 145                                 try {
 146                                         ci = new CultureInfo (lcid);
 147                                 } catch {
 148                                         ThrowParseException ("Unsupported LCID: " + lcid);
 149                                 }
 150
 151                                 if (ci.IsNeutralCulture) {
 152                                         string suggestedCulture = SuggestCulture (ci.Name);
 153                                         string fmt = "LCID attribute must be set to a non-neutral Culture.";
 154                                         if (suggestedCulture != null) {
 155                                                 ThrowParseException (fmt + " Please try one of these: " +
 156                                                                      suggestedCulture);
 157                                         } else {
 158                                                 ThrowParseException (fmt);
 159                                         }
 160                                 }
 161                         }
 162
 163                         culture = GetString (atts, "Culture", null);
 164                         if (culture != null) {
 165                                 if (lcidStr != null)
 166                                         ThrowParseException ("Culture and LCID are mutually exclusive.");
 167
 168                                 CultureInfo ci = null;
 169                                 try {
 170                                         ci = new CultureInfo (culture);
 171                                 } catch {
 172                                         ThrowParseException ("Unsupported Culture: " + culture);
 173                                 }
 174
 175                                 if (ci.IsNeutralCulture) {
 176                                         string suggestedCulture = SuggestCulture (culture);
 177                                         string fmt = "Culture attribute must be set to a non-neutral Culture.";
 178                                         if (suggestedCulture != null)
 179                                                 ThrowParseException (fmt +
 180                                                                 " Please try one of these: " + suggestedCulture);
 181                                         else
 182                                                 ThrowParseException (fmt);
 183                                 }
 184                         }
 185
 186                         uiculture = GetString (atts, "UICulture", null);
 187                         if (uiculture != null) {
 188                                 CultureInfo ci = null;
 189                                 try {
 190                                         ci = new CultureInfo (uiculture);
 191                                 } catch {
 192                                         ThrowParseException ("Unsupported Culture: " + uiculture);
 193                                 }
 194
 195                                 if (ci.IsNeutralCulture) {
 196                                         string suggestedCulture = SuggestCulture (uiculture);
 197                                         string fmt = "UICulture attribute must be set to a non-neutral Culture.";
 198                                         if (suggestedCulture != null)
 199                                                 ThrowParseException (fmt +
 200                                                                 " Please try one of these: " + suggestedCulture);
 201                                         else
 202                                                 ThrowParseException (fmt);
 203                                 }
 204                         }
 205
 206                         string tracestr = GetString (atts, "Trace", null);
 207                         if (tracestr != null) {
 208                                 haveTrace = true;
 209                                 atts ["Trace"] = tracestr;
 210                                 trace = GetBool (atts, "Trace", false);
 211                         }
 212
 213                         string tracemodes = GetString (atts, "TraceMode", null);
 214                         if (tracemodes != null) {
 215                                 bool valid = true;
 216                                 try {
 217                                         tracemode = (TraceMode) Enum.Parse (typeof (TraceMode), tracemodes, false);
 218                                 } catch {
 219                                         valid = false;
 220                                 }
 221
 222                                 if (!valid || tracemode == TraceMode.Default)
 223                                         ThrowParseException ("The 'tracemode' attribute is case sensitive and must be " +
 224                                                         "one of the following values: SortByTime, SortByCategory.");
 225                         }
 226
 227                         errorPage = GetString (atts, "ErrorPage", null);
 228                         validateRequest = GetBool (atts, "ValidateRequest", PagesConfig.ValidateRequest);
 229                         clientTarget = GetString (atts, "ClientTarget", null);
 230                         if (clientTarget != null) {
 231                                 NameValueCollection coll;
 232                                 coll = (NameValueCollection) Context.GetConfig ("system.web/clientTarget");
 233                                 if (coll == null || coll [clientTarget] == null) {
 234                                         ThrowParseException (String.Format (
 235                                                         "ClientTarget '{0}' is an invalid alias. See the " +
 236                                                         "documentation for <clientTarget> config. section.",
 237                                                         clientTarget));
 238                                 }
 239                                 clientTarget = (string) coll [clientTarget];
 240                         }
 241
 242                         notBuffer = !GetBool (atts, "Buffer", true);
 243
 244 #if NET_2_0
 245                         masterPage = GetString (atts, "MasterPageFile", null);
 246 #endif
 247                         // Ignored by now
 248                         GetString (atts, "EnableViewStateMac", null);
 249                         GetString (atts, "SmartNavigation", null);
 250
 251                         base.ProcessMainAttributes (atts);
 252                 }
 253
 254                 static string SuggestCulture (string culture)
 255                 {
 256                         string retval = null;
 257                         foreach (CultureInfo ci in CultureInfo.GetCultures (CultureTypes.SpecificCultures)) {
 258                                 if (ci.Name.StartsWith (culture))
 259                                         retval += ci.Name + " ";
 260                         }
 261                         return retval;
 262                 }
 263
 264                 protected override Type CompileIntoType ()
 265                 {
 266                         AspGenerator generator = new AspGenerator (this);
 267                         return generator.GetCompiledType ();
 268                 }
 269
 270                 internal bool EnableSessionState {
 271                         get { return enableSessionState; }
 272                 }
 273
 274                 internal bool ReadOnlySessionState {
 275                         get { return readonlySessionState; }
 276                 }
 277
 278                 internal bool HaveTrace {
 279                         get { return haveTrace; }
 280                 }
 281
 282                 internal bool Trace {
 283                         get { return trace; }
 284                 }
 285
 286                 internal TraceMode TraceMode {
 287                         get { return tracemode; }
 288                 }
 289
 290                 internal override Type DefaultBaseType {
 291                         get { return baseType; }
 292                 }
 293
 294                 internal override string DefaultBaseTypeName {
 295                         get { return "System.Web.UI.Page"; }
 296                 }
 297
 298                 internal override string DefaultDirectiveName {
 299                         get { return "page"; }
 300                 }
 301
 302                 internal string ResponseEncoding {
 303                         get { return responseEncoding; }
 304                 }
 305
 306                 internal string ContentType {
 307                         get { return contentType; }
 308                 }
 309
 310                 internal int CodePage {
 311                         get { return codepage; }
 312                 }
 313
 314                 internal string Culture {
 315                         get { return culture; }
 316                 }
 317
 318                 internal string UICulture {
 319                         get { return uiculture; }
 320                 }
 321
 322                 internal int LCID {
 323                         get { return lcid; }
 324                 }
 325
 326                 internal string ErrorPage {
 327                         get { return errorPage; }
 328                 }
 329
 330                 internal bool ValidateRequest {
 331                         get { return validateRequest; }
 332                 }
 333
 334                 internal string ClientTarget {
 335                         get { return clientTarget; }
 336                 }
 337
 338                 internal bool NotBuffer {
 339                         get { return notBuffer; }
 340                 }
 341
 342 #if NET_2_0
 343                 internal string MasterPageFile {
 344                         get { return masterPage; }
 345                 }
 346 #endif
 347         }
 348 }
 349