mcs/class/System/System.Net/CookieCollection.cs

   1 //
   2 // System.Net.CookieCollection
   3 //
   4 // Authors:
   5 //      Lawrence Pit (loz@cable.a2000.nl)
   6 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   7 //      Sebastien Pouliot  <sebastien@ximian.com>
   8 //
   9 // Copyright (C) 2004,2009 Novell, Inc (http://www.novell.com)
  10 //
  11
  12 //
  13 // Permission is hereby granted, free of charge, to any person obtaining
  14 // a copy of this software and associated documentation files (the
  15 // "Software"), to deal in the Software without restriction, including
  16 // without limitation the rights to use, copy, modify, merge, publish,
  17 // distribute, sublicense, and/or sell copies of the Software, and to
  18 // permit persons to whom the Software is furnished to do so, subject to
  19 // the following conditions:
  20 //
  21 // The above copyright notice and this permission notice shall be
  22 // included in all copies or substantial portions of the Software.
  23 //
  24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  31 //
  32
  33 using System.Collections;
  34 using System.Collections.Generic;
  35 using System.Globalization;
  36 using System.Runtime.Serialization;
  37
  38 namespace System.Net
  39 {
  40         [Serializable]
  41 #if NET_2_1
  42         public sealed class CookieCollection : ICollection, IEnumerable {
  43 #else
  44         public class CookieCollection : ICollection, IEnumerable {
  45 #endif
  46                 // not 100% identical to MS implementation
  47                 sealed class CookieCollectionComparer : IComparer<Cookie> {
  48                         public int Compare (Cookie x, Cookie y)
  49                         {
  50                                 if (x == null || y == null)
  51                                         return 0;
  52
  53                                 var ydomain = y.Domain.Length - (y.Domain[0] == '.' ? 1 : 0);
  54                                 var xdomain = x.Domain.Length - (x.Domain[0] == '.' ? 1 : 0);
  55
  56                                 int result = ydomain - xdomain;
  57                                 return result == 0 ? y.Path.Length - x.Path.Length : result;
  58                         }
  59                 }
  60
  61                 static CookieCollectionComparer Comparer = new CookieCollectionComparer ();
  62
  63                 List<Cookie> list = new List<Cookie> ();
  64
  65                 internal IList<Cookie> List {
  66                         get { return list; }
  67                 }
  68                 // ICollection
  69                 public int Count {
  70                         get { return list.Count; }
  71                 }
  72
  73                 public bool IsSynchronized {
  74                         get { return false; }
  75                 }
  76
  77                 public Object SyncRoot {
  78                         get { return this; }
  79                 }
  80
  81                 public void CopyTo (Array array, int index)
  82                 {
  83                         (list as IList).CopyTo (array, index);
  84                 }
  85
  86                 public void CopyTo (Cookie [] array, int index)
  87                 {
  88                         list.CopyTo (array, index);
  89                 }
  90
  91                 // IEnumerable
  92                 public IEnumerator GetEnumerator ()
  93                 {
  94                         return list.GetEnumerator ();
  95                 }
  96
  97                 // This
  98
  99                 // LAMESPEC: So how is one supposed to create a writable CookieCollection
 100                 // instance?? We simply ignore this property, as this collection is always
 101                 // writable.
 102                 public bool IsReadOnly {
 103                         get { return true; }
 104                 }
 105
 106                 public void Add (Cookie cookie)
 107                 {
 108                         if (cookie == null)
 109                                 throw new ArgumentNullException ("cookie");
 110
 111                         int pos = SearchCookie (cookie);
 112                         if (pos == -1)
 113                                 list.Add (cookie);
 114                         else
 115                                 list [pos] = cookie;
 116                 }
 117
 118                 internal void Sort ()
 119                 {
 120                         if (list.Count > 0)
 121                                 list.Sort (Comparer);
 122                 }
 123
 124                 int SearchCookie (Cookie cookie)
 125                 {
 126                         string name = cookie.Name;
 127                         string domain = cookie.Domain;
 128                         string path = cookie.Path;
 129
 130                         for (int i = list.Count - 1; i >= 0; i--) {
 131                                 Cookie c = list [i];
 132                                 if (c.Version != cookie.Version)
 133                                         continue;
 134
 135                                 if (0 != String.Compare (domain, c.Domain, true, CultureInfo.InvariantCulture))
 136                                         continue;
 137
 138                                 if (0 != String.Compare (name, c.Name, true, CultureInfo.InvariantCulture))
 139                                         continue;
 140
 141                                 if (0 != String.Compare (path, c.Path, true, CultureInfo.InvariantCulture))
 142                                         continue;
 143
 144                                 return i;
 145                         }
 146
 147                         return -1;
 148                 }
 149
 150                 public void Add (CookieCollection cookies)
 151                 {
 152                         if (cookies == null)
 153                                 throw new ArgumentNullException ("cookies");
 154
 155                         foreach (Cookie c in cookies)
 156                                 Add (c);
 157                 }
 158
 159                 public Cookie this [int index] {
 160                         get {
 161                                 if (index < 0 || index >= list.Count)
 162                                         throw new ArgumentOutOfRangeException ("index");
 163
 164                                 return list [index];
 165                         }
 166                 }
 167
 168                 public Cookie this [string name] {
 169                         get {
 170                                 foreach (Cookie c in list) {
 171                                         if (0 == String.Compare (c.Name, name, true, CultureInfo.InvariantCulture))
 172                                                 return c;
 173                                 }
 174                                 return null;
 175                         }
 176                 }
 177
 178         } // CookieCollection
 179 } // System.Net
 180