Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / Security / Policy / FileCodeGroup.cs / 1 / FileCodeGroup.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== // // FileCodeGroup.cs // // Representation for code groups used for the policy mechanism. // namespace System.Security.Policy { using System; using System.Collections; using System.Globalization; using System.Security.Permissions; using System.Security.Util; using System.Runtime.Serialization; using System.Runtime.Versioning; [Serializable] [System.Runtime.InteropServices.ComVisible(true)] sealed public class FileCodeGroup : CodeGroup, IUnionSemanticCodeGroup { private FileIOPermissionAccess m_access; internal FileCodeGroup() : base() {} public FileCodeGroup(IMembershipCondition membershipCondition, FileIOPermissionAccess access) : base(membershipCondition, (PolicyStatement)null) { m_access = access; } [ResourceExposure(ResourceScope.Machine)] [ResourceConsumption(ResourceScope.Machine)] public override PolicyStatement Resolve(Evidence evidence) { if (evidence == null) throw new ArgumentNullException("evidence"); if (this.MembershipCondition.Check(evidence)) { PolicyStatement thisPolicy = CalculateAssemblyPolicy(evidence); IEnumerator enumerator = this.Children.GetEnumerator(); while (enumerator.MoveNext()) { PolicyStatement childPolicy = ((CodeGroup)enumerator.Current).Resolve(evidence); if (childPolicy != null) { if (((thisPolicy.Attributes & childPolicy.Attributes) & PolicyStatementAttribute.Exclusive) == PolicyStatementAttribute.Exclusive) throw new PolicyException(Environment.GetResourceString("Policy_MultipleExclusive")); thisPolicy.GetPermissionSetNoCopy().InplaceUnion(childPolicy.GetPermissionSetNoCopy()); thisPolicy.Attributes = thisPolicy.Attributes | childPolicy.Attributes; } } return thisPolicy; } else { return null; } } ///[ResourceExposure(ResourceScope.Machine)] [ResourceConsumption(ResourceScope.Machine)] PolicyStatement IUnionSemanticCodeGroup.InternalResolve(Evidence evidence) { if (evidence == null) throw new ArgumentNullException("evidence"); if (this.MembershipCondition.Check(evidence)) { return CalculateAssemblyPolicy(evidence); } return null; } public override CodeGroup ResolveMatchingCodeGroups(Evidence evidence) { if (evidence == null) throw new ArgumentNullException("evidence"); if (this.MembershipCondition.Check(evidence)) { CodeGroup retGroup = this.Copy(); retGroup.Children = new ArrayList(); IEnumerator enumerator = this.Children.GetEnumerator(); while (enumerator.MoveNext()) { CodeGroup matchingGroups = ((CodeGroup)enumerator.Current).ResolveMatchingCodeGroups(evidence); // If the child has a policy, we are done. if (matchingGroups != null) retGroup.AddChild(matchingGroups); } return retGroup; } else { return null; } } [ResourceExposure(ResourceScope.Machine)] [ResourceConsumption(ResourceScope.Machine)] internal PolicyStatement CalculatePolicy(Url url) { URLString urlString = url.GetURLString(); if (String.Compare(urlString.Scheme, "file", StringComparison.OrdinalIgnoreCase) != 0) return null; string directory = urlString.GetDirectoryName(); PermissionSet permSet = new PermissionSet(PermissionState.None); permSet.SetPermission(new FileIOPermission(m_access, System.IO.Path.GetFullPath(directory))); return new PolicyStatement(permSet, PolicyStatementAttribute.Nothing); } [ResourceExposure(ResourceScope.Machine)] [ResourceConsumption(ResourceScope.Machine)] private PolicyStatement CalculateAssemblyPolicy(Evidence evidence) { PolicyStatement thisPolicy = null; IEnumerator evidenceEnumerator = evidence.GetHostEnumerator(); while (evidenceEnumerator.MoveNext()) { Url url = evidenceEnumerator.Current as Url; if (url != null) thisPolicy = CalculatePolicy(url); } if (thisPolicy == null) thisPolicy = new PolicyStatement(new PermissionSet(false), PolicyStatementAttribute.Nothing); return thisPolicy; } public override CodeGroup Copy() { FileCodeGroup group = new FileCodeGroup(this.MembershipCondition, this.m_access); group.Name = this.Name; group.Description = this.Description; IEnumerator enumerator = this.Children.GetEnumerator(); while (enumerator.MoveNext()) { group.AddChild((CodeGroup)enumerator.Current); } return group; } public override string MergeLogic { get { return Environment.GetResourceString("MergeLogic_Union"); } } public override string PermissionSetName { get { return String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("FileCodeGroup_PermissionSet"), XMLUtil.BitFieldEnumToString(typeof(FileIOPermissionAccess), m_access)); } } public override string AttributeString { get { return null; } } protected override void CreateXml(SecurityElement element, PolicyLevel level) { element.AddAttribute("Access", XMLUtil.BitFieldEnumToString(typeof(FileIOPermissionAccess), m_access)); } protected override void ParseXml(SecurityElement e, PolicyLevel level) { string access = e.Attribute("Access"); if (access != null) m_access = (FileIOPermissionAccess) Enum.Parse(typeof(FileIOPermissionAccess), access); else m_access = FileIOPermissionAccess.NoAccess; } public override bool Equals(Object o) { FileCodeGroup that = (o as FileCodeGroup); if (that != null && base.Equals(that)) { if (this.m_access == that.m_access) return true; } return false; } public override int GetHashCode() { return base.GetHashCode() + m_access.GetHashCode(); } internal override string GetTypeName() { return "System.Security.Policy.FileCodeGroup"; } } }
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- CatalogPartCollection.cs
- DataControlImageButton.cs
- hebrewshape.cs
- SimpleTypeResolver.cs
- ComboBoxItem.cs
- AdCreatedEventArgs.cs
- RSAPKCS1SignatureFormatter.cs
- X509DefaultServiceCertificateElement.cs
- TypeSystem.cs
- While.cs
- XPathMessageFilterElementComparer.cs
- CollectionsUtil.cs
- PropertyDescriptorGridEntry.cs
- keycontainerpermission.cs
- CompositeDesignerAccessibleObject.cs
- RequestQueryProcessor.cs
- SortQuery.cs
- FontSizeConverter.cs
- DataGridViewRowHeaderCell.cs
- RequestCacheEntry.cs
- DataServiceConfiguration.cs
- ToolStripEditorManager.cs
- ConditionalAttribute.cs
- MSAANativeProvider.cs
- XmlCustomFormatter.cs
- MessageSmuggler.cs
- CLSCompliantAttribute.cs
- StackOverflowException.cs
- ContainerAction.cs
- COM2EnumConverter.cs
- ClrProviderManifest.cs
- SmiRecordBuffer.cs
- NativeMethods.cs
- PropertyGridCommands.cs
- PersonalizationDictionary.cs
- WorkflowCommandExtensionItem.cs
- EdmFunction.cs
- OdbcCommand.cs
- ValueOfAction.cs
- PanelStyle.cs
- HttpClientProtocol.cs
- WebPartMinimizeVerb.cs
- KeyConverter.cs
- ParseHttpDate.cs
- DateTimeConverter2.cs
- XmlUtil.cs
- Input.cs
- ToolStripDropDown.cs
- SystemKeyConverter.cs
- SettingsBindableAttribute.cs
- EntityDataReader.cs
- NoResizeHandleGlyph.cs
- CalendarKeyboardHelper.cs
- ContractsBCL.cs
- EntityDataSourceReferenceGroup.cs
- CompletionCallbackWrapper.cs
- MessagePropertyAttribute.cs
- HttpRequestWrapper.cs
- ImageInfo.cs
- ResetableIterator.cs
- ListBindingHelper.cs
- XMLSyntaxException.cs
- ITreeGenerator.cs
- BindingExpressionUncommonField.cs
- XmlUrlResolver.cs
- SchemaImporter.cs
- ScrollData.cs
- ObsoleteAttribute.cs
- WpfSharedBamlSchemaContext.cs
- CheckBoxPopupAdapter.cs
- BaseProcessProtocolHandler.cs
- XsdBuilder.cs
- DropSourceBehavior.cs
- PowerEase.cs
- CorrelationResolver.cs
- DbDataRecord.cs
- LinqDataSourceView.cs
- BamlLocalizerErrorNotifyEventArgs.cs
- ManagementBaseObject.cs
- DesignerCategoryAttribute.cs
- Html32TextWriter.cs
- ContentIterators.cs
- ToolbarAUtomationPeer.cs
- DebuggerService.cs
- DropDownButton.cs
- BinaryFormatter.cs
- LOSFormatter.cs
- SingletonInstanceContextProvider.cs
- CombinedTcpChannel.cs
- HostedHttpRequestAsyncResult.cs
- DocumentViewerConstants.cs
- TableCellCollection.cs
- OracleBFile.cs
- QuaternionAnimation.cs
- DnsPermission.cs
- Control.cs
- XPathScanner.cs
- ClientUrlResolverWrapper.cs
- MethodExecutor.cs