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
- ListViewPagedDataSource.cs
- ScaleTransform3D.cs
- UIElementPropertyUndoUnit.cs
- ProviderUtil.cs
- FixUpCollection.cs
- CroppedBitmap.cs
- DesignConnection.cs
- Preprocessor.cs
- NonDualMessageSecurityOverHttpElement.cs
- ImageCodecInfo.cs
- UnaryQueryOperator.cs
- DesignTimeParseData.cs
- DropShadowBitmapEffect.cs
- Inline.cs
- XsdValidatingReader.cs
- CollectionView.cs
- LayoutDump.cs
- CacheAxisQuery.cs
- AnnotationObservableCollection.cs
- XmlChoiceIdentifierAttribute.cs
- Latin1Encoding.cs
- ExpressionValueEditor.cs
- ProxyGenerationError.cs
- RunClient.cs
- isolationinterop.cs
- StrokeSerializer.cs
- DataServiceHostFactory.cs
- ProcessHostMapPath.cs
- arc.cs
- XmlSchemaNotation.cs
- Decoder.cs
- Mappings.cs
- EndpointAddressAugust2004.cs
- PEFileReader.cs
- TextEditor.cs
- SingleAnimationUsingKeyFrames.cs
- ImageFormat.cs
- PerformanceCounterCategory.cs
- PanelStyle.cs
- SmtpDigestAuthenticationModule.cs
- RtfControls.cs
- Context.cs
- Compiler.cs
- StringInfo.cs
- _SSPIWrapper.cs
- HexParser.cs
- SymbolTable.cs
- SynchronizationLockException.cs
- CurrencyWrapper.cs
- SerializationSectionGroup.cs
- XhtmlTextWriter.cs
- _HeaderInfoTable.cs
- TextServicesManager.cs
- RequestNavigateEventArgs.cs
- DependencyPropertyChangedEventArgs.cs
- CanExecuteRoutedEventArgs.cs
- PerformanceCounterTraceRecord.cs
- ToolBar.cs
- WebDescriptionAttribute.cs
- _SslSessionsCache.cs
- ErrorFormatter.cs
- FileRegion.cs
- KnownTypeDataContractResolver.cs
- QueryCorrelationInitializer.cs
- X509CertificateClaimSet.cs
- VisualStyleRenderer.cs
- ProfessionalColorTable.cs
- ArrayHelper.cs
- counter.cs
- Base64Decoder.cs
- EnumType.cs
- PathTooLongException.cs
- PageStatePersister.cs
- SmiConnection.cs
- EnvironmentPermission.cs
- ColumnMapProcessor.cs
- OdbcRowUpdatingEvent.cs
- DataGridViewCellLinkedList.cs
- SettingsAttributeDictionary.cs
- TemplateContent.cs
- EpmHelper.cs
- ManualResetEvent.cs
- SoapElementAttribute.cs
- ImageFormat.cs
- CompositeTypefaceMetrics.cs
- AbandonedMutexException.cs
- TypedRowHandler.cs
- BrowserCapabilitiesCodeGenerator.cs
- ParallelTimeline.cs
- ScriptManagerProxy.cs
- PageHandlerFactory.cs
- ActivityCompletionCallbackWrapper.cs
- RadioButtonPopupAdapter.cs
- NameSpaceEvent.cs
- precedingquery.cs
- DataBinding.cs
- WmpBitmapEncoder.cs
- NativeMethods.cs
- SafeFileMappingHandle.cs
- IssuanceLicense.cs