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 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
  39 namespace System.Web
  40 {
  41         class ServerVariablesCollection : NameValueCollection
  42         {
  43                 HttpRequest request;
  44                 bool loaded;
  45
  46                 public ServerVariablesCollection(HttpRequest request)
  47                 {
  48                         IsReadOnly = true;
  49                         this.request = request;
  50                 }
  51
  52                 void AppendKeyValue (StringBuilder sb, string key, string value, bool standard)
  53                 {
  54                         //
  55                         // Standard has HTTP_ prefix, everything is uppercase, has no space
  56                         // after colon, - is changed to _
  57                         //
  58                         // Raw is header, colon, space, values, raw.
  59                         //
  60                         if (standard){
  61                                 sb.Append ("HTTP_");
  62                                 sb.Append (key.ToUpper ().Replace ("-", "_"));
  63                                 sb.Append (":");
  64                         } else {
  65                                 sb.Append (key);
  66                                 sb.Append (": ");
  67                         }
  68                         sb.Append (value);
  69                         sb.Append ("\r\n");
  70                 }
  71
  72                 string Fill (HttpWorkerRequest wr, bool standard)
  73                 {
  74                         StringBuilder sb = new StringBuilder ();
  75
  76                         for (int i = 0; i < HttpWorkerRequest.RequestHeaderMaximum; i++){
  77                                 string val = wr.GetKnownRequestHeader (i);
  78                                 if (val == null || val == "")
  79                                         continue;
  80                                 string key = HttpWorkerRequest.GetKnownRequestHeaderName (i);
  81                                 AppendKeyValue (sb, key, val, standard);
  82                         }
  83                         string [][] other = wr.GetUnknownRequestHeaders ();
  84                         if (other == null)
  85                                 return sb.ToString ();
  86
  87                         for (int i = other.Length; i > 0; ){
  88                                 i--;
  89                                 AppendKeyValue (sb, other [i][0], other [i][1], standard);
  90                         }
  91
  92                         return sb.ToString ();
  93                 }
  94
  95                 void AddHeaderVariables (HttpWorkerRequest wr)
  96                 {
  97                         string hname;
  98                         string hvalue;
  99
 100                         // Add all known headers
 101                         for (int i = 0; i < HttpWorkerRequest.RequestHeaderMaximum; i++) {
 102                                 hvalue = wr.GetKnownRequestHeader (i);
 103                                 if (null != hvalue && hvalue.Length > 0) {
 104                                         hname = HttpWorkerRequest.GetKnownRequestHeaderName (i);
 105                                         if (null != hname && hname.Length > 0)
 106                                                 Add ("HTTP_" + hname.ToUpper ().Replace ('-', '_'), hvalue);
 107                                 }
 108                         }
 109
 110                         // Get all other headers
 111                         string [][] unknown = wr.GetUnknownRequestHeaders ();
 112                         if (null != unknown) {
 113                                 for (int i = 0; i < unknown.Length; i++) {
 114                                         hname = unknown [i][0];
 115                                         if (hname == null)
 116                                                 continue;
 117                                         hvalue = unknown [i][1];
 118                                         Add ("HTTP_" + hname.ToUpper ().Replace ('-', '_'), hvalue);
 119                                 }
 120                         }
 121                 }
 122
 123                 private void loadServerVariablesCollection()
 124                 {
 125                         HttpWorkerRequest wr = request.WorkerRequest;
 126                         if (loaded || (wr == null))
 127                                 return;
 128
 129                         IsReadOnly = false;
 130
 131                         Add("ALL_HTTP", Fill (wr, true));
 132                         Add("ALL_RAW",  Fill (wr, false));
 133
 134                         Add("APPL_MD_PATH", wr.GetServerVariable("APPL_MD_PATH"));
 135                         Add("APPL_PHYSICAL_PATH", wr.GetServerVariable("APPL_PHYSICAL_PATH"));
 136
 137                         if (null != request.Context.User && request.Context.User.Identity.IsAuthenticated) {
 138                                 Add ("AUTH_TYPE", request.Context.User.Identity.AuthenticationType);
 139                                 Add ("AUTH_USER", request.Context.User.Identity.Name);
 140                         } else {
 141                                 Add ("AUTH_TYPE", "");
 142                                 Add ("AUTH_USER", "");
 143                         }
 144
 145                         Add("AUTH_PASSWORD", wr.GetServerVariable("AUTH_PASSWORD"));
 146                         Add ("LOGON_USER", wr.GetServerVariable("LOGON_USER"));
 147                         Add ("REMOTE_USER", wr.GetServerVariable("REMOTE_USER"));
 148                         Add("CERT_COOKIE", wr.GetServerVariable("CERT_COOKIE"));
 149                         Add("CERT_FLAGS", wr.GetServerVariable("CERT_FLAGS"));
 150                         Add("CERT_ISSUER", wr.GetServerVariable("CERT_ISSUER"));
 151                         Add("CERT_KEYSIZE", wr.GetServerVariable("CERT_KEYSIZE"));
 152                         Add("CERT_SECRETKEYSIZE", wr.GetServerVariable("CERT_SECRETKEYSIZE"));
 153                         Add("CERT_SERIALNUMBER", wr.GetServerVariable("CERT_SERIALNUMBER"));
 154                         Add("CERT_SERVER_ISSUER", wr.GetServerVariable("CERT_SERVER_ISSUER"));
 155                         Add("CERT_SERVER_SUBJECT", wr.GetServerVariable("CERT_SERVER_SUBJECT"));
 156                         Add("CERT_SUBJECT", wr.GetServerVariable("CERT_SUBJECT"));
 157
 158                         string sTmp = wr.GetKnownRequestHeader(HttpWorkerRequest.HeaderContentLength);
 159                         if (null != sTmp)
 160                                 Add ("CONTENT_LENGTH", sTmp);
 161                         Add ("CONTENT_TYPE", request.ContentType);
 162
 163                         Add("GATEWAY_INTERFACE", wr.GetServerVariable("GATEWAY_INTERFACE"));
 164                         Add("HTTPS", wr.GetServerVariable("HTTPS"));
 165                         Add("HTTPS_KEYSIZE", wr.GetServerVariable("HTTPS_KEYSIZE"));
 166                         Add("HTTPS_SECRETKEYSIZE", wr.GetServerVariable("HTTPS_SECRETKEYSIZE"));
 167                         Add("HTTPS_SERVER_ISSUER", wr.GetServerVariable("HTTPS_SERVER_ISSUER"));
 168                         Add("HTTPS_SERVER_SUBJECT", wr.GetServerVariable("HTTPS_SERVER_SUBJECT"));
 169                         Add("INSTANCE_ID", wr.GetServerVariable("INSTANCE_ID"));
 170                         Add("INSTANCE_META_PATH", wr.GetServerVariable("INSTANCE_META_PATH"));
 171                         Add("LOCAL_ADDR", wr.GetLocalAddress());
 172                         Add("PATH_INFO", request.PathInfo);
 173                         Add("PATH_TRANSLATED", request.PhysicalPath);
 174                         Add("QUERY_STRING", request.QueryStringRaw);
 175                         Add("REMOTE_ADDR", request.UserHostAddress);
 176                         Add("REMOTE_HOST", request.UserHostName);
 177                         Add("REMOTE_PORT", wr.GetRemotePort ().ToString ());
 178                         Add("REQUEST_METHOD", request.HttpMethod);
 179                         Add("SCRIPT_NAME", request.FilePath);
 180                         Add("SERVER_NAME", wr.GetServerName());
 181                         Add("SERVER_PORT", wr.GetLocalPort().ToString());
 182                         if (wr.IsSecure())
 183                                 Add("SERVER_PORT_SECURE", "1");
 184                         else
 185                                 Add("SERVER_PORT_SECURE", "0");
 186                         Add("SERVER_PROTOCOL", wr.GetHttpVersion());
 187                         Add("SERVER_SOFTWARE", wr.GetServerVariable("SERVER_SOFTWARE"));
 188                         Add ("URL", request.FilePath);
 189
 190                         AddHeaderVariables (wr);
 191
 192                         IsReadOnly = true;
 193                         loaded = true;
 194                 }
 195
 196
 197                 public override string Get(int index)
 198                 {
 199                         loadServerVariablesCollection();
 200                         return base.Get(index);
 201                 }
 202
 203                 public override string Get(string name)
 204                 {
 205                         string text1;
 206                         if (!loaded) {
 207                                 text1 = GetServerVar(name);
 208                                 if (text1 != null)
 209                                         return text1;
 210                                 loadServerVariablesCollection();
 211                         }
 212                         return base.Get(name);
 213
 214
 215                 }
 216
 217                 private string GetServerVar(string name)
 218                 {
 219                         if (((name == null) || (name.Length <= 8)) || (this.request == null))
 220                                 return null;
 221
 222                         if (string.Compare(name, "AUTH_TYPE", true, CultureInfo.InvariantCulture) == 0) {
 223                                 if (null != request.Context.User && request.Context.User.Identity.IsAuthenticated)
 224                                         return request.Context.User.Identity.AuthenticationType;
 225                                 else
 226                                         return string.Empty;
 227                         } else if (string.Compare(name, "AUTH_USER",true, CultureInfo.InvariantCulture) == 0) {
 228                                 if (null != request.Context.User && request.Context.User.Identity.IsAuthenticated)
 229                                         return request.Context.User.Identity.Name;
 230                                 else
 231                                         return string.Empty;
 232                         } else if (string.Compare(name, "QUERY_STRING", true, CultureInfo.InvariantCulture) == 0)
 233                                 return this.request.QueryStringRaw;
 234                         else if (string.Compare(name, "PATH_INFO", true, CultureInfo.InvariantCulture) == 0)
 235                                 return this.request.PathInfo;
 236                         else if (string.Compare(name, "PATH_TRANSLATED", true, CultureInfo.InvariantCulture) == 0)
 237                                 return this.request.PhysicalPath;
 238                         else if (string.Compare(name, "REQUEST_METHOD", true, CultureInfo.InvariantCulture) == 0)
 239                                 return this.request.HttpMethod;
 240                         else if (string.Compare(name, "REMOTE_ADDR", true, CultureInfo.InvariantCulture) == 0)
 241                                 return this.request.UserHostAddress;
 242                         else if (string.Compare(name, "REMOTE_HOST", true, CultureInfo.InvariantCulture) == 0)
 243                                 return this.request.UserHostName;
 244                         else if (string.Compare(name, "REMOTE_ADDRESS", true, CultureInfo.InvariantCulture) == 0)
 245                                 return this.request.UserHostAddress;
 246                         else if (string.Compare(name, "SCRIPT_NAME", true, CultureInfo.InvariantCulture) == 0)
 247                                 return this.request.FilePath;
 248                         else if (string.Compare(name, "LOCAL_ADDR", true, CultureInfo.InvariantCulture) == 0)
 249                                 return this.request.WorkerRequest.GetLocalAddress();
 250                         else if (string.Compare(name, "SERVER_PROTOCOL", true, CultureInfo.InvariantCulture) == 0)
 251                                 return request.WorkerRequest.GetHttpVersion();
 252                         else if (string.Compare(name, "SERVER_SOFTWARE", true, CultureInfo.InvariantCulture) == 0)
 253                                 return request.WorkerRequest.GetServerVariable("SERVER_SOFTWARE");
 254                         return null;
 255                 }
 256
 257                 public override string GetKey(int index)
 258                 {
 259                         loadServerVariablesCollection();
 260                         return base.GetKey(index);
 261                 }
 262
 263                 public override string[] GetValues(int index)
 264                 {
 265                         string text1;
 266                         string[] array1;
 267
 268                         text1 = Get(index);
 269                         if (text1 == null)
 270                                 return null;
 271
 272                         array1 = new string[1];
 273                         array1[0] = text1;
 274
 275                         return array1;
 276                 }
 277
 278                 public override string[] GetValues(string name)
 279                 {
 280                         string text1;
 281                         string[] array1;
 282
 283                         text1 = Get(name);
 284                         if (text1 == null)
 285                                 return null;
 286                         array1 = new string[1];
 287                         array1[0] = text1;
 288
 289                         return array1;
 290                 }
 291
 292                 // not really useful except for not triggering Gendarme warnings
 293                 [SecurityPermission (SecurityAction.Demand, SerializationFormatter = true)]
 294                 public override void GetObjectData(SerializationInfo info, StreamingContext context)
 295                 {
 296                         throw new SerializationException();
 297                 }
 298
 299                 public override string[] AllKeys
 300                 {
 301                         get {
 302                                 loadServerVariablesCollection ();
 303                                 return base.AllKeys;
 304                         }
 305                 }
 306
 307                 public override int Count
 308                 {
 309                         get {
 310                                 loadServerVariablesCollection ();
 311                                 return base.Count;
 312                         }
 313                 }
 314         }
 315 }