mcs/class/System.Web/System.Web/HeadersCollection.cs

   1 //
   2 // System.Web.HeadersCollection
   3 //
   4 // Authors:
   5 //   Vladimir Krasnov (vladimirk@mainsoft.com)
   6 //
   7 // (C) 2006 Mainsoft Co. (http://www.mainsoft.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 using System;
  30 using System.Collections.Specialized;
  31 using System.Runtime.Serialization;
  32
  33 namespace System.Web
  34 {
  35         class HeadersCollection : BaseParamsCollection
  36         {
  37
  38                 public HeadersCollection(HttpRequest request):base(request)
  39                 {
  40                 }
  41
  42                 public override void Add (string name, string value)
  43                 {
  44                         if (IsReadOnly)
  45                                 throw new PlatformNotSupportedException ();
  46
  47                         base.Set (name, value);
  48                 }
  49
  50                 public override void Set (string name, string value)
  51                 {
  52                         if (IsReadOnly)
  53                                 throw new PlatformNotSupportedException ();
  54
  55                         base.Set (name, value);
  56                 }
  57
  58                 public override void Remove (string name)
  59                 {
  60                         if (IsReadOnly)
  61                                 throw new PlatformNotSupportedException ();
  62
  63                         base.Remove (name);
  64                 }
  65
  66                 protected override void InsertInfo()
  67                 {
  68                         HttpWorkerRequest worker_request = _request.WorkerRequest;
  69                         if (null != worker_request)
  70                         {
  71                                 for (int i = 0; i < HttpWorkerRequest.RequestHeaderMaximum; i++) {
  72                                         string hval = worker_request.GetKnownRequestHeader (i);
  73
  74                                         if (hval == null || hval == "")
  75                                                 continue;
  76
  77                                         Add (HttpWorkerRequest.GetKnownRequestHeaderName (i), hval);
  78                                 }
  79
  80                                 string [] [] unknown = worker_request.GetUnknownRequestHeaders ();
  81                                 if (unknown != null && unknown.GetUpperBound (0) != -1) {
  82                                         int top = unknown.GetUpperBound (0) + 1;
  83
  84                                         for (int i = 0; i < top; i++) {
  85                                                 // should check if unknown [i] is not null, but MS does not.
  86
  87                                                 Add (unknown [i] [0], unknown [i] [1]);
  88                                         }
  89                                 }
  90                                 Protect ();
  91                         }
  92                 }
  93
  94                 protected override string InternalGet(string name)
  95                 {
  96                         int headerIndex = HttpWorkerRequest.GetKnownRequestHeaderIndex(name);
  97                         string headerValue = null;
  98                         if (headerIndex >= 0)
  99                                 headerValue = _request.WorkerRequest.GetKnownRequestHeader(headerIndex);
 100                         if (headerValue == null)
 101                                 headerValue = _request.WorkerRequest.GetUnknownRequestHeader(name);
 102                         return headerValue;
 103                 }
 104         }
 105 }