Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Net / System / Net / _SpnDictionary.cs / 1 / _SpnDictionary.cs
/*++ Copyright (c) Microsoft Corporation Module Name: _SpnDictionary.cs Abstract: This internal class implements a static mutlithreaded dictionary for user-registered SPNs. An SPN is mapped based on a Uri prefix that contains scheme, host and port. Author: Alexei Vopilov 15-Nov-2003 Revision History: --*/ namespace System.Net { using System; using System.Collections; using System.Collections.Specialized; using System.Security.Permissions; internal class SpnDictionary : StringDictionary { // //A Hashtable can support one writer and multiple readers concurrently // private Hashtable m_SyncTable = Hashtable.Synchronized(new Hashtable()); // // internal SpnDictionary():base() { } // // // public override int Count { get { ExceptionHelper.WebPermissionUnrestricted.Demand(); return m_SyncTable.Count; } } // // We are thread safe // public override bool IsSynchronized { get { return true; } } // // Internal lookup, bypasses security checks // internal string InternalGet(string canonicalKey) { int lastLength = 0; string key = null; foreach (object o in m_SyncTable.Keys){ string s = (string) o; if(s != null && s.Length > lastLength){ if(String.Compare(s,0,canonicalKey,0,s.Length,StringComparison.OrdinalIgnoreCase) == 0){ lastLength = s.Length; key = s; } } } return (key != null) ? (string)m_SyncTable[key]: null; } internal void InternalSet(string canonicalKey, string spn) { m_SyncTable[canonicalKey] = spn; } // // Public lookup method // public override string this[string key] { get { key = GetCanonicalKey(key); return InternalGet(key); } set { key = GetCanonicalKey(key); InternalSet(key, value); } } // public override ICollection Keys { get { ExceptionHelper.WebPermissionUnrestricted.Demand(); return m_SyncTable.Keys; } } // public override object SyncRoot { [HostProtection(Synchronization=true)] get { ExceptionHelper.WebPermissionUnrestricted.Demand(); return m_SyncTable; } } // public override ICollection Values { get { ExceptionHelper.WebPermissionUnrestricted.Demand(); return m_SyncTable.Values; } } // public override void Add(string key, string value) { key = GetCanonicalKey(key); m_SyncTable.Add(key, value); } // public override void Clear() { ExceptionHelper.WebPermissionUnrestricted.Demand(); m_SyncTable.Clear(); } // public override bool ContainsKey(string key) { key = GetCanonicalKey(key); return m_SyncTable.ContainsKey(key); } // public override bool ContainsValue(string value) { ExceptionHelper.WebPermissionUnrestricted.Demand(); return m_SyncTable.ContainsValue(value); } // public override void CopyTo(Array array, int index) { ExceptionHelper.WebPermissionUnrestricted.Demand(); m_SyncTable.CopyTo(array, index); } // public override IEnumerator GetEnumerator() { ExceptionHelper.WebPermissionUnrestricted.Demand(); return m_SyncTable.GetEnumerator(); } // public override void Remove(string key) { key = GetCanonicalKey(key); m_SyncTable.Remove(key); } // // Private stuff: We want to serialize on updates on one thread // private static string GetCanonicalKey(string key) { if( key == null ) { throw new ArgumentNullException("key"); } try { Uri uri = new Uri(key); key = uri.GetParts(UriComponents.Scheme | UriComponents.Host | UriComponents.Port | UriComponents.Path, UriFormat.SafeUnescaped); new WebPermission(NetworkAccess.Connect, new Uri(key)).Demand(); } catch(UriFormatException e) { throw new ArgumentException(SR.GetString(SR.net_mustbeuri, "key"), "key", e); } return key; } } }
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- HierarchicalDataSourceControl.cs
- TextPointerBase.cs
- dbenumerator.cs
- PathFigure.cs
- DataGridViewRowConverter.cs
- ValuePatternIdentifiers.cs
- FloaterParaClient.cs
- SystemUdpStatistics.cs
- ConfigurationHelpers.cs
- ISAPIRuntime.cs
- EmptyCollection.cs
- ParameterRetriever.cs
- LowerCaseStringConverter.cs
- DependencyObjectProvider.cs
- XmlSerializerNamespaces.cs
- DataGridViewCellStyle.cs
- HebrewCalendar.cs
- HostingEnvironmentWrapper.cs
- FixedSOMPage.cs
- FastEncoderWindow.cs
- KnownTypesHelper.cs
- ViewValidator.cs
- GlobalizationAssembly.cs
- SqlInternalConnection.cs
- XmlSortKey.cs
- XmlReader.cs
- Base64WriteStateInfo.cs
- WeakEventManager.cs
- DataServiceRequestException.cs
- CommandConverter.cs
- SymbolDocumentGenerator.cs
- ModuleConfigurationInfo.cs
- SolidColorBrush.cs
- CodeTypeOfExpression.cs
- CookieParameter.cs
- MemoryStream.cs
- ProcessDesigner.cs
- DrawToolTipEventArgs.cs
- Native.cs
- ObjectQueryState.cs
- TextureBrush.cs
- SecureConversationServiceCredential.cs
- LinqDataSourceDisposeEventArgs.cs
- TagMapCollection.cs
- WorkItem.cs
- StrokeNodeEnumerator.cs
- InputMethod.cs
- PropertyFilterAttribute.cs
- DefaultTraceListener.cs
- SqlBooleanizer.cs
- OrderByBuilder.cs
- VsPropertyGrid.cs
- PerformanceCountersElement.cs
- ImageSource.cs
- ComPersistableTypeElementCollection.cs
- EventMappingSettings.cs
- ConstantSlot.cs
- SiteMapPath.cs
- ProviderConnectionPointCollection.cs
- WebPartPersonalization.cs
- DecoratedNameAttribute.cs
- WorkflowServiceOperationListItem.cs
- WebServiceFaultDesigner.cs
- SqlTypeConverter.cs
- ContentTextAutomationPeer.cs
- PathSegment.cs
- CategoryValueConverter.cs
- WebControlAdapter.cs
- DoubleLinkList.cs
- XamlReaderHelper.cs
- ToolStripLabel.cs
- DbUpdateCommandTree.cs
- PixelShader.cs
- UdpChannelFactory.cs
- XmlSchemaSimpleContent.cs
- ApplicationCommands.cs
- BitStream.cs
- CodeConstructor.cs
- MimeImporter.cs
- SchemaMapping.cs
- BindToObject.cs
- ManagementDateTime.cs
- DurableTimerExtension.cs
- TargetConverter.cs
- ProtocolsConfigurationEntry.cs
- TextCompositionManager.cs
- RefreshPropertiesAttribute.cs
- UnsafeNativeMethods.cs
- WindowsUpDown.cs
- CryptoConfig.cs
- IndexOutOfRangeException.cs
- AmbientLight.cs
- GenericEnumerator.cs
- Single.cs
- OrderByBuilder.cs
- DocumentViewerBaseAutomationPeer.cs
- DataGridViewRowHeightInfoNeededEventArgs.cs
- ButtonChrome.cs
- MDIWindowDialog.cs
- FlowDocumentFormatter.cs