Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / Security / Permissions / IsolatedStorageFilePermission.cs / 1 / IsolatedStorageFilePermission.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== // // Purpose : This permission is used to controls/administer access to // IsolatedStorageFile // namespace System.Security.Permissions { using System.Globalization; [Serializable] [System.Runtime.InteropServices.ComVisible(true)] sealed public class IsolatedStorageFilePermission : IsolatedStoragePermission, IBuiltInPermission { public IsolatedStorageFilePermission(PermissionState state) : base(state) { } internal IsolatedStorageFilePermission(IsolatedStorageContainment UsageAllowed, long ExpirationDays, bool PermanentData) : base(UsageAllowed, ExpirationDays, PermanentData) { } //------------------------------------------------------ // // IPERMISSION IMPLEMENTATION // //----------------------------------------------------- public override IPermission Union(IPermission target) { if (target == null) { return this.Copy(); } else if (!VerifyType(target)) { throw new ArgumentException( String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName) ); } IsolatedStorageFilePermission operand = (IsolatedStorageFilePermission)target; if (this.IsUnrestricted() || operand.IsUnrestricted()) { return new IsolatedStorageFilePermission( PermissionState.Unrestricted ); } else { IsolatedStorageFilePermission union; union = new IsolatedStorageFilePermission( PermissionState.None ); union.m_userQuota = max(m_userQuota,operand.m_userQuota); union.m_machineQuota = max(m_machineQuota,operand.m_machineQuota); union.m_expirationDays = max(m_expirationDays,operand.m_expirationDays); union.m_permanentData = m_permanentData || operand.m_permanentData; union.m_allowed = (IsolatedStorageContainment)max((long)m_allowed,(long)operand.m_allowed); return union; } } public override bool IsSubsetOf(IPermission target) { if (target == null) { return ((m_userQuota == 0) && (m_machineQuota == 0) && (m_expirationDays == 0) && (m_permanentData == false) && (m_allowed == IsolatedStorageContainment.None)); } try { IsolatedStorageFilePermission operand = (IsolatedStorageFilePermission)target; if (operand.IsUnrestricted()) return true; return ((operand.m_userQuota >= m_userQuota) && (operand.m_machineQuota >= m_machineQuota) && (operand.m_expirationDays >= m_expirationDays) && (operand.m_permanentData || !m_permanentData) && (operand.m_allowed >= m_allowed)); } catch (InvalidCastException) { throw new ArgumentException( String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName) ); } } public override IPermission Intersect(IPermission target) { if (target == null) return null; else if (!VerifyType(target)) { throw new ArgumentException( String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName) ); } IsolatedStorageFilePermission operand = (IsolatedStorageFilePermission)target; if(operand.IsUnrestricted()) return Copy(); else if(IsUnrestricted()) return target.Copy(); IsolatedStorageFilePermission intersection; intersection = new IsolatedStorageFilePermission( PermissionState.None ); intersection.m_userQuota = min(m_userQuota,operand.m_userQuota); intersection.m_machineQuota = min(m_machineQuota,operand.m_machineQuota); intersection.m_expirationDays = min(m_expirationDays,operand.m_expirationDays); intersection.m_permanentData = m_permanentData && operand.m_permanentData; intersection.m_allowed = (IsolatedStorageContainment)min((long)m_allowed,(long)operand.m_allowed); if ((intersection.m_userQuota == 0) && (intersection.m_machineQuota == 0) && (intersection.m_expirationDays == 0) && (intersection.m_permanentData == false) && (intersection.m_allowed == IsolatedStorageContainment.None)) return null; return intersection; } public override IPermission Copy() { IsolatedStorageFilePermission copy ; copy = new IsolatedStorageFilePermission(PermissionState.Unrestricted); if(!IsUnrestricted()){ copy.m_userQuota = m_userQuota; copy.m_machineQuota = m_machineQuota; copy.m_expirationDays = m_expirationDays; copy.m_permanentData = m_permanentData; copy.m_allowed = m_allowed; } return copy; } ///int IBuiltInPermission.GetTokenIndex() { return IsolatedStorageFilePermission.GetTokenIndex(); } internal static int GetTokenIndex() { return BuiltInPermissionIndex.IsolatedStorageFilePermissionIndex; } //----------------------------------------------------- // // IsolatedStoragePermission OVERRIDES // //----------------------------------------------------- [System.Runtime.InteropServices.ComVisible(false)] public override SecurityElement ToXml() { return base.ToXml( "System.Security.Permissions.IsolatedStorageFilePermission" ); } } }
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- MessagePropertyVariants.cs
- PrefixQName.cs
- Convert.cs
- DbExpressionRules.cs
- GridViewItemAutomationPeer.cs
- DataGridView.cs
- AudioException.cs
- ValidationError.cs
- WindowShowOrOpenTracker.cs
- ClientFactory.cs
- IdentityNotMappedException.cs
- PrimarySelectionGlyph.cs
- SafeHandles.cs
- CompositeFontParser.cs
- TypographyProperties.cs
- ResumeStoryboard.cs
- NullRuntimeConfig.cs
- SessionSwitchEventArgs.cs
- SpanIndex.cs
- RSAOAEPKeyExchangeDeformatter.cs
- CryptoProvider.cs
- TransformProviderWrapper.cs
- TraceUtility.cs
- LeafCellTreeNode.cs
- HostingEnvironmentWrapper.cs
- SplitterPanel.cs
- TreeViewBindingsEditor.cs
- FileUtil.cs
- XmlNamespaceManager.cs
- LocalFileSettingsProvider.cs
- Pair.cs
- StylusPointProperty.cs
- CommonRemoteMemoryBlock.cs
- MachineKeyConverter.cs
- FixedDocumentSequencePaginator.cs
- DesignTimeData.cs
- HashCodeCombiner.cs
- Helpers.cs
- CodeMemberEvent.cs
- SemanticResultKey.cs
- ExceptionUtil.cs
- RootProfilePropertySettingsCollection.cs
- SystemThemeKey.cs
- NetDataContractSerializer.cs
- ApplicationFileCodeDomTreeGenerator.cs
- Image.cs
- StringDictionary.cs
- ConnectionInterfaceCollection.cs
- MultilineStringConverter.cs
- AnimationClock.cs
- InternalsVisibleToAttribute.cs
- _OSSOCK.cs
- _Rfc2616CacheValidators.cs
- XMLUtil.cs
- MimeParameter.cs
- SafeLocalMemHandle.cs
- FunctionImportMapping.ReturnTypeRenameMapping.cs
- TabControl.cs
- WorkerRequest.cs
- SoapParser.cs
- FrameworkTemplate.cs
- TextEditorMouse.cs
- ThemeDirectoryCompiler.cs
- AppSettingsSection.cs
- XmlSchemaAppInfo.cs
- SerialStream.cs
- LayoutInformation.cs
- ListDictionaryInternal.cs
- ElementAction.cs
- CodeObjectCreateExpression.cs
- ReturnEventArgs.cs
- ObjectList.cs
- Evidence.cs
- wpf-etw.cs
- Table.cs
- UriWriter.cs
- CompilerErrorCollection.cs
- CreateUserWizardStep.cs
- LocalizationParserHooks.cs
- ValueTypeFixupInfo.cs
- HexParser.cs
- ContentHostHelper.cs
- FormViewPagerRow.cs
- Int32Converter.cs
- MediaSystem.cs
- DoubleAnimation.cs
- ViewGenerator.cs
- VirtualPathProvider.cs
- HttpCookiesSection.cs
- WizardPanel.cs
- EntityTemplateUserControl.cs
- PreservationFileReader.cs
- KeyValuePair.cs
- WebPartAuthorizationEventArgs.cs
- DefaultEventAttribute.cs
- GuidTagList.cs
- StylusDownEventArgs.cs
- Opcode.cs
- FunctionUpdateCommand.cs
- ComPlusDiagnosticTraceRecords.cs