mcs/class/System.Web/System.Web/ServerVariablesCollection.cs

   1 //
   2 // System.Web.ServerVariablesCollection
   3 //
   4 // Authors:
   5 //      Alon Gazit (along@mainsoft.com)
   6 //      Miguel de Icaza (miguel@novell.com)
   7 //      Gonzalo Paniagua Javier (gonzalo@novell.com)
   8 //
   9 // (c) 2004 Mainsoft, Inc. (http://www.mainsoft.com)
  10 // Copyright (C) 2005-2010 Novell, Inc (http://www.novell.com)
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System.Text;
  33 using System.Collections;
  34 using System.Collections.Specialized;
  35 using System.Runtime.Serialization;
  36 using System.Globalization;
  37 using System.Security.Permissions;
  38 using System.Security.Principal;
  39 using System.Web.Util;
  40
  41 namespace System.Web
  42 {
  43         sealed class ServerVariablesCollection : BaseParamsCollection
  44         {
  45                 bool loaded;
  46
  47                 string QueryString {
  48                         get {
  49                                 string qs = _request.QueryStringRaw;
  50
  51                                 if (String.IsNullOrEmpty (qs))
  52                                         return qs;
  53
  54                                 if (qs [0] == '?')
  55                                         return qs.Substring (1);
  56
  57                                 return qs;
  58                         }
  59                 }
  60
  61                 IIdentity UserIdentity {
  62                         get {
  63                                 HttpContext context = _request != null ? _request.Context : null;
  64                                 IPrincipal user = context != null ? context.User : null;
  65                                 return user != null ? user.Identity : null;
  66                         }
  67                 }
  68
  69                 public ServerVariablesCollection(HttpRequest request) : base(request)
  70                 {
  71                         IsReadOnly = true;
  72                 }
  73
  74                 void AppendKeyValue (StringBuilder sb, string key, string value, bool standard)
  75                 {
  76                         //
  77                         // Standard has HTTP_ prefix, everything is uppercase, has no space
  78                         // after colon, - is changed to _
  79                         //
  80                         // Raw is header, colon, space, values, raw.
  81                         //
  82                         if (standard){
  83                                 sb.Append ("HTTP_");
  84                                 sb.Append (key.ToUpper (Helpers.InvariantCulture).Replace ('-', '_'));
  85                                 sb.Append (":");
  86                         } else {
  87                                 sb.Append (key);
  88                                 sb.Append (": ");
  89                         }
  90                         sb.Append (value);
  91                         sb.Append ("\r\n");
  92                 }
  93
  94                 string Fill (HttpWorkerRequest wr, bool standard)
  95                 {
  96                         StringBuilder sb = new StringBuilder ();
  97
  98                         for (int i = 0; i < HttpWorkerRequest.RequestHeaderMaximum; i++){
  99                                 string val = wr.GetKnownRequestHeader (i);
 100                                 if (String.IsNullOrEmpty (val))
 101                                         continue;
 102                                 string key = HttpWorkerRequest.GetKnownRequestHeaderName (i);
 103                                 AppendKeyValue (sb, key, val, standard);
 104                         }
 105                         string [][] other = wr.GetUnknownRequestHeaders ();
 106                         if (other == null)
 107                                 return sb.ToString ();
 108
 109                         for (int i = other.Length; i > 0; ){
 110                                 i--;
 111                                 AppendKeyValue (sb, other [i][0], other [i][1], standard);
 112                         }
 113
 114                         return sb.ToString ();
 115                 }
 116
 117                 void AddHeaderVariables (HttpWorkerRequest wr)
 118                 {
 119                         string hname;
 120                         string hvalue;
 121
 122                         // Add all known headers
 123                         for (int i = 0; i < HttpWorkerRequest.RequestHeaderMaximum; i++) {
 124                                 hvalue = wr.GetKnownRequestHeader (i);
 125                                 if (null != hvalue && hvalue.Length > 0) {
 126                                         hname = HttpWorkerRequest.GetKnownRequestHeaderName (i);
 127                                         if (null != hname && hname.Length > 0)
 128                                                 Add ("HTTP_" + hname.ToUpper (Helpers.InvariantCulture).Replace ('-', '_'), hvalue);
 129                                 }
 130                         }
 131
 132                         // Get all other headers
 133                         string [][] unknown = wr.GetUnknownRequestHeaders ();
 134                         if (null != unknown) {
 135                                 for (int i = 0; i < unknown.Length; i++) {
 136                                         hname = unknown [i][0];
 137                                         if (hname == null)
 138                                                 continue;
 139                                         hvalue = unknown [i][1];
 140                                         Add ("HTTP_" + hname.ToUpper (Helpers.InvariantCulture).Replace ('-', '_'), hvalue);
 141                                 }
 142                         }
 143                 }
 144
 145                 void loadServerVariablesCollection()
 146                 {
 147                         HttpWorkerRequest wr = _request.WorkerRequest;
 148                         if (loaded || (wr == null))
 149                                 return;
 150
 151                         IsReadOnly = false;
 152
 153                         Add("ALL_HTTP", Fill (wr, true));
 154                         Add("ALL_RAW",  Fill (wr, false));
 155
 156                         Add("APPL_MD_PATH", wr.GetServerVariable("APPL_MD_PATH"));
 157                         Add("APPL_PHYSICAL_PATH", wr.GetServerVariable("APPL_PHYSICAL_PATH"));
 158
 159                         IIdentity identity = UserIdentity;
 160
 161                         if (identity != null && identity.IsAuthenticated) {
 162                                 Add ("AUTH_TYPE", identity.AuthenticationType);
 163                                 Add ("AUTH_USER", identity.Name);
 164                         } else {
 165                                 Add ("AUTH_TYPE", String.Empty);
 166                                 Add ("AUTH_USER", String.Empty);
 167                         }
 168
 169                         Add("AUTH_PASSWORD", wr.GetServerVariable("AUTH_PASSWORD"));
 170                         Add ("LOGON_USER", wr.GetServerVariable("LOGON_USER"));
 171                         Add ("REMOTE_USER", wr.GetServerVariable("REMOTE_USER"));
 172                         Add("CERT_COOKIE", wr.GetServerVariable("CERT_COOKIE"));
 173                         Add("CERT_FLAGS", wr.GetServerVariable("CERT_FLAGS"));
 174                         Add("CERT_ISSUER", wr.GetServerVariable("CERT_ISSUER"));
 175                         Add("CERT_KEYSIZE", wr.GetServerVariable("CERT_KEYSIZE"));
 176                         Add("CERT_SECRETKEYSIZE", wr.GetServerVariable("CERT_SECRETKEYSIZE"));
 177                         Add("CERT_SERIALNUMBER", wr.GetServerVariable("CERT_SERIALNUMBER"));
 178                         Add("CERT_SERVER_ISSUER", wr.GetServerVariable("CERT_SERVER_ISSUER"));
 179                         Add("CERT_SERVER_SUBJECT", wr.GetServerVariable("CERT_SERVER_SUBJECT"));
 180                         Add("CERT_SUBJECT", wr.GetServerVariable("CERT_SUBJECT"));
 181
 182                         string sTmp = wr.GetKnownRequestHeader(HttpWorkerRequest.HeaderContentLength);
 183                         if (null != sTmp)
 184                                 Add ("CONTENT_LENGTH", sTmp);
 185                         Add ("CONTENT_TYPE", _request.ContentType);
 186
 187                         Add("GATEWAY_INTERFACE", wr.GetServerVariable("GATEWAY_INTERFACE"));
 188                         Add("HTTPS", wr.GetServerVariable("HTTPS"));
 189                         Add("HTTPS_KEYSIZE", wr.GetServerVariable("HTTPS_KEYSIZE"));
 190                         Add("HTTPS_SECRETKEYSIZE", wr.GetServerVariable("HTTPS_SECRETKEYSIZE"));
 191                         Add("HTTPS_SERVER_ISSUER", wr.GetServerVariable("HTTPS_SERVER_ISSUER"));
 192                         Add("HTTPS_SERVER_SUBJECT", wr.GetServerVariable("HTTPS_SERVER_SUBJECT"));
 193                         Add("INSTANCE_ID", wr.GetServerVariable("INSTANCE_ID"));
 194                         Add("INSTANCE_META_PATH", wr.GetServerVariable("INSTANCE_META_PATH"));
 195                         Add("LOCAL_ADDR", wr.GetLocalAddress());
 196                         Add("PATH_INFO", _request.PathInfo);
 197                         Add("PATH_TRANSLATED", _request.PhysicalPath);
 198                         Add("QUERY_STRING", QueryString);
 199                         Add("REMOTE_ADDR", _request.UserHostAddress);
 200                         Add("REMOTE_HOST", _request.UserHostName);
 201                         Add("REMOTE_PORT", wr.GetRemotePort ().ToString ());
 202                         Add("REQUEST_METHOD", _request.HttpMethod);
 203                         Add("SCRIPT_NAME", _request.FilePath);
 204                         Add("SERVER_NAME", wr.GetServerName());
 205                         Add("SERVER_PORT", wr.GetLocalPort().ToString());
 206                         if (wr.IsSecure())
 207                                 Add("SERVER_PORT_SECURE", "1");
 208                         else
 209                                 Add("SERVER_PORT_SECURE", "0");
 210                         Add("SERVER_PROTOCOL", wr.GetHttpVersion());
 211                         Add("SERVER_SOFTWARE", wr.GetServerVariable("SERVER_SOFTWARE"));
 212                         Add ("URL", _request.FilePath);
 213
 214                         AddHeaderVariables (wr);
 215
 216                         IsReadOnly = true;
 217                         loaded = true;
 218                 }
 219
 220                 protected override void InsertInfo ()
 221                 {
 222                         loadServerVariablesCollection ();
 223                 }
 224
 225                 protected override string InternalGet (string name)
 226                 {
 227                         if ((name == null) || (this._request == null))
 228                                 return null;
 229                         name = name.ToUpper (Helpers.InvariantCulture);
 230                         IIdentity identity;
 231
 232                         switch (name) {
 233                                 case "AUTH_TYPE":
 234                                         identity = UserIdentity;
 235                                         if (identity != null && identity.IsAuthenticated)
 236                                                 return identity.AuthenticationType;
 237                                         else
 238                                                 return string.Empty;
 239                                 case "AUTH_USER":
 240                                         identity = UserIdentity;
 241                                         if (identity != null && identity.IsAuthenticated)
 242                                                 return identity.Name;
 243                                         else
 244                                                 return string.Empty;
 245                                 case "QUERY_STRING":
 246                                         return QueryString;
 247                                 case "PATH_INFO":
 248                                         return this._request.PathInfo;
 249                                 case "PATH_TRANSLATED":
 250                                         return this._request.PhysicalPath;
 251                                 case "REQUEST_METHOD":
 252                                         return this._request.HttpMethod;
 253                                 case "REMOTE_ADDR":
 254                                         return this._request.UserHostAddress;
 255                                 case "REMOTE_HOST":
 256                                         return this._request.UserHostName;
 257                                 case "REMOTE_ADDRESS":
 258                                         return this._request.UserHostAddress;
 259                                 case "SCRIPT_NAME":
 260                                         return this._request.FilePath;
 261                                 case "LOCAL_ADDR":
 262                                         return this._request.WorkerRequest.GetLocalAddress ();
 263                                 case "SERVER_PROTOCOL":
 264                                         return _request.WorkerRequest.GetHttpVersion ();
 265                                 case "CONTENT_TYPE":
 266                                         return _request.ContentType;
 267                                 case "REMOTE_PORT":
 268                                         return _request.WorkerRequest.GetRemotePort ().ToString ();
 269                                 case "SERVER_NAME":
 270                                         return _request.WorkerRequest.GetServerName ();
 271                                 case "SERVER_PORT":
 272                                         return _request.WorkerRequest.GetLocalPort ().ToString ();
 273                                 case "APPL_PHYSICAL_PATH":
 274                                         return _request.WorkerRequest.GetAppPathTranslated ();
 275                                 case "URL":
 276                                         return _request.FilePath;
 277                                 case "SERVER_PORT_SECURE":
 278                                         return (_request.WorkerRequest.IsSecure ()) ? "1" : "0";
 279                                 case "ALL_HTTP":
 280                                         return Fill (_request.WorkerRequest, true);
 281                                 case "ALL_RAW":
 282                                         return Fill (_request.WorkerRequest, false);
 283                                 case "REMOTE_USER":
 284                                 case "SERVER_SOFTWARE":
 285                                 case "APPL_MD_PATH":
 286                                 case "AUTH_PASSWORD":
 287                                 case "CERT_COOKIE":
 288                                 case "CERT_FLAGS":
 289                                 case "CERT_ISSUER":
 290                                 case "CERT_KEYSIZE":
 291                                 case "CERT_SECRETKEYSIZE":
 292                                 case "CERT_SERIALNUMBER":
 293                                 case "CERT_SERVER_ISSUER":
 294                                 case "CERT_SERVER_SUBJECT":
 295                                 case "GATEWAY_INTERFACE":
 296                                 case "HTTPS":
 297                                 case "HTTPS_KEYSIZE":
 298                                 case "HTTPS_SECRETKEYSIZE":
 299                                 case "HTTPS_SERVER_ISSUER":
 300                                 case "HTTPS_SERVER_SUBJECT":
 301                                 case "INSTANCE_ID":
 302                                 case "INSTANCE_META_PATH":
 303                                 case "LOGON_USER":
 304                                 case "HTTP_ACCEPT":
 305                                 case "HTTP_REFERER":
 306                                 case "HTTP_ACCEPT_LANGUAGE":
 307                                 case "HTTP_ACCEPT_ENCODING":
 308                                 case "HTTP_CONNECTION":
 309                                 case "HTTP_HOST":
 310                                 case "HTTP_USER_AGENT":
 311                                 case "HTTP_SOAPACTION":
 312                                         return _request.WorkerRequest.GetServerVariable (name);
 313                                 default:
 314                                         return null;
 315                         }
 316                 }
 317         }
 318 }