mcs/class/System.ServiceModel/System.ServiceModel.Security.Tokens/SecurityContextSecurityTokenResolver.cs

   1 //
   2 // SecurityContextSecurityTokenResolver.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2006 Novell, Inc.  http://www.novell.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 using System;
  29 using System.Collections.Generic;
  30 using System.Collections.ObjectModel;
  31 using System.IdentityModel.Selectors;
  32 using System.IdentityModel.Tokens;
  33 using System.Xml;
  34
  35 using Table = System.Collections.Generic.Dictionary<System.Xml.UniqueId,System.ServiceModel.Security.Tokens.SecurityContextSecurityToken>;
  36
  37 namespace System.ServiceModel.Security.Tokens
  38 {
  39         public class SecurityContextSecurityTokenResolver : SecurityTokenResolver, ISecurityContextSecurityTokenCache
  40         {
  41                 int capacity;
  42                 bool allow_removal;
  43
  44                 Dictionary<UniqueId,Table> cache =
  45                         new Dictionary<UniqueId,Table> ();
  46
  47                 public SecurityContextSecurityTokenResolver (
  48                         int securityContextCacheCapacity,
  49                         bool removeOldestTokensOnCacheFull)
  50                 {
  51                         capacity = securityContextCacheCapacity;
  52                         allow_removal = removeOldestTokensOnCacheFull;
  53                 }
  54
  55                 public bool RemoveOldestTokensOnCacheFull {
  56                         get { return allow_removal; }
  57                 }
  58
  59                 public int SecurityContextTokenCacheCapacity {
  60                         get { return capacity; }
  61                 }
  62
  63                 public void AddContext (SecurityContextSecurityToken token)
  64                 {
  65                         if (!TryAddContext (token))
  66                                 throw new InvalidOperationException ("Argument token is already in the cache.");
  67                 }
  68
  69                 public void ClearContexts ()
  70                 {
  71                         cache.Clear ();
  72                 }
  73
  74                 public Collection<SecurityContextSecurityToken> GetAllContexts (UniqueId contextId)
  75                 {
  76                         Table table;
  77                         if (!cache.TryGetValue (contextId, out table))
  78                                 return new Collection<SecurityContextSecurityToken> ();
  79                         SecurityContextSecurityToken [] arr =
  80                                 new SecurityContextSecurityToken [table.Count];
  81                         table.Values.CopyTo (arr, 0);
  82                         return new Collection<SecurityContextSecurityToken> (arr);
  83                 }
  84
  85                 public SecurityContextSecurityToken GetContext (UniqueId contextId, UniqueId generation)
  86                 {
  87                         Table table;
  88                         if (!cache.TryGetValue (contextId, out table))
  89                                 return null;
  90                         SecurityContextSecurityToken ret;
  91                         return table.TryGetValue (generation, out ret) ? ret : null;
  92                 }
  93
  94                 public void RemoveAllContexts (UniqueId contextId)
  95                 {
  96                         cache.Remove (contextId);
  97                 }
  98
  99                 public void RemoveContext (UniqueId contextId, UniqueId generation)
 100                 {
 101                         Table table;
 102                         if (!cache.TryGetValue (contextId, out table))
 103                                 return;
 104                         table.Remove (generation);
 105                 }
 106
 107                 public bool TryAddContext (SecurityContextSecurityToken token)
 108                 {
 109                         Table table;
 110                         if (!cache.TryGetValue (token.ContextId, out table)) {
 111                                 table = new Table ();
 112                                 table [token.KeyGeneration] = token;
 113                         } else {
 114                                 if (table.ContainsKey (token.KeyGeneration))
 115                                         return false;
 116                                 table [token.KeyGeneration] = token;
 117                         }
 118                         return true;
 119                 }
 120
 121                 [MonoTODO]
 122                 public void UpdateContextCachingTime (SecurityContextSecurityToken context, DateTime expirationTime)
 123                 {
 124                         throw new NotImplementedException ();
 125                 }
 126
 127                 // SecurityTokenResolver
 128
 129                 [MonoTODO]
 130                 protected override bool TryResolveSecurityKeyCore (
 131                         SecurityKeyIdentifierClause keyIdentifierClause,
 132                         out SecurityKey key)
 133                 {
 134                         throw new NotImplementedException ();
 135                 }
 136
 137                 [MonoTODO]
 138                 protected override bool TryResolveTokenCore (
 139                         SecurityKeyIdentifier keyIdentifier,
 140                         out SecurityToken token)
 141                 {
 142                         throw new NotImplementedException ();
 143                 }
 144
 145                 [MonoTODO]
 146                 protected override bool TryResolveTokenCore (
 147                         SecurityKeyIdentifierClause keyIdentifierClause,
 148                         out SecurityToken token)
 149                 {
 150                         throw new NotImplementedException ();
 151                 }
 152         }
 153 }