Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / clr / src / BCL / System / Security / Policy / FileCodeGroup.cs / 1305376 / 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; using System.Diagnostics.Contracts; [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; } [System.Security.SecuritySafeCritical] // auto-generated [ResourceExposure(ResourceScope.Machine)] [ResourceConsumption(ResourceScope.Machine)] public override PolicyStatement Resolve(Evidence evidence) { if (evidence == null) throw new ArgumentNullException("evidence"); Contract.EndContractBlock(); object usedEvidence = null; if (PolicyManager.CheckMembershipCondition(MembershipCondition, evidence, out usedEvidence)) { PolicyStatement thisPolicy = CalculateAssemblyPolicy(evidence); // If any delay-evidence was used to generate this grant set, then we need to keep track of // that for potentially later forcing it to be verified. IDelayEvaluatedEvidence delayEvidence = usedEvidence as IDelayEvaluatedEvidence; bool delayEvidenceNeedsVerification = delayEvidence != null && !delayEvidence.IsVerified; if (delayEvidenceNeedsVerification) { thisPolicy.AddDependentEvidence(delayEvidence); } bool foundExclusiveChild = false; IEnumerator enumerator = this.Children.GetEnumerator(); while (enumerator.MoveNext() && !foundExclusiveChild) { PolicyStatement childPolicy = PolicyManager.ResolveCodeGroup(enumerator.Current as CodeGroup, evidence); if (childPolicy != null) { thisPolicy.InplaceUnion(childPolicy); if ((childPolicy.Attributes & PolicyStatementAttribute.Exclusive) == PolicyStatementAttribute.Exclusive) { foundExclusiveChild = true; } } } return thisPolicy; } else { return null; } } ///[ResourceExposure(ResourceScope.Machine)] [ResourceConsumption(ResourceScope.Machine)] PolicyStatement IUnionSemanticCodeGroup.InternalResolve(Evidence evidence) { if (evidence == null) throw new ArgumentNullException("evidence"); Contract.EndContractBlock(); if (this.MembershipCondition.Check(evidence)) { return CalculateAssemblyPolicy(evidence); } return null; } [System.Security.SecuritySafeCritical] // auto-generated public override CodeGroup ResolveMatchingCodeGroups(Evidence evidence) { if (evidence == null) throw new ArgumentNullException("evidence"); Contract.EndContractBlock(); 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; Url url = evidence.GetHostEvidence (); if (url != null) { thisPolicy = CalculatePolicy(url); } else { thisPolicy = new PolicyStatement(new PermissionSet(false), PolicyStatementAttribute.Nothing); } return thisPolicy; } [System.Security.SecuritySafeCritical] // auto-generated 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 { [System.Security.SecuritySafeCritical] // auto-generated get { return Environment.GetResourceString("FileCodeGroup_PermissionSet", XMLUtil.BitFieldEnumToString(typeof(FileIOPermissionAccess), m_access)); } } public override string AttributeString { [System.Security.SecuritySafeCritical] // auto-generated 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; } [System.Security.SecuritySafeCritical] // auto-generated 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; } [System.Security.SecuritySafeCritical] // auto-generated public override int GetHashCode() { return base.GetHashCode() + m_access.GetHashCode(); } internal override string GetTypeName() { return "System.Security.Policy.FileCodeGroup"; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- CommandSet.cs
- TrackingParticipant.cs
- ChtmlCommandAdapter.cs
- safemediahandle.cs
- GeometryHitTestParameters.cs
- DataGridRow.cs
- PrimitiveXmlSerializers.cs
- OracleBoolean.cs
- coordinator.cs
- BaseProcessor.cs
- RawKeyboardInputReport.cs
- XmlCharCheckingWriter.cs
- IImplicitResourceProvider.cs
- EndpointDiscoveryMetadataCD1.cs
- MimeReturn.cs
- ContainerParaClient.cs
- CommandID.cs
- CodeArrayIndexerExpression.cs
- LogExtent.cs
- XmlBinaryReader.cs
- ACL.cs
- Perspective.cs
- ManifestBasedResourceGroveler.cs
- ObjectDataSource.cs
- MonthCalendar.cs
- ScopedKnownTypes.cs
- ModelEditingScope.cs
- MemoryStream.cs
- MenuEventArgs.cs
- FontStyleConverter.cs
- ResolveNameEventArgs.cs
- ReferenceAssemblyAttribute.cs
- TableParagraph.cs
- TrustManagerPromptUI.cs
- ProcessRequestArgs.cs
- QuaternionAnimationUsingKeyFrames.cs
- GPPOINTF.cs
- SoapEnvelopeProcessingElement.cs
- DrawingContextDrawingContextWalker.cs
- XmlAttribute.cs
- HyperLinkField.cs
- ReaderContextStackData.cs
- ArrangedElementCollection.cs
- CodeLinePragma.cs
- PageThemeParser.cs
- TemplateManager.cs
- HGlobalSafeHandle.cs
- OutputCache.cs
- MailWriter.cs
- securitymgrsite.cs
- DataGridViewRowHeightInfoPushedEventArgs.cs
- CompModSwitches.cs
- TextBlock.cs
- ItemCollection.cs
- SystemColors.cs
- RegisteredScript.cs
- DataGridViewCheckBoxColumn.cs
- XmlValidatingReader.cs
- TemplateComponentConnector.cs
- OpenTypeLayoutCache.cs
- DBNull.cs
- SslStream.cs
- WpfPayload.cs
- SplitterEvent.cs
- InheritablePropertyChangeInfo.cs
- HttpListener.cs
- ParallelQuery.cs
- ApplicationActivator.cs
- GridPatternIdentifiers.cs
- GraphicsPath.cs
- BaseCollection.cs
- ObjectMaterializedEventArgs.cs
- CompareValidator.cs
- Rect3DValueSerializer.cs
- HttpListenerPrefixCollection.cs
- WebPartVerb.cs
- DataGridViewLinkCell.cs
- Imaging.cs
- NativeMethods.cs
- _FtpControlStream.cs
- EntitySqlQueryState.cs
- OdbcUtils.cs
- AdPostCacheSubstitution.cs
- SmtpAuthenticationManager.cs
- ContainerParaClient.cs
- StaticExtension.cs
- MessageAction.cs
- WebPartEditorApplyVerb.cs
- SchemaType.cs
- OracleString.cs
- WebHttpBindingCollectionElement.cs
- odbcmetadatafactory.cs
- WebBrowser.cs
- TreeViewImageIndexConverter.cs
- TypedReference.cs
- EventMappingSettingsCollection.cs
- TiffBitmapEncoder.cs
- FocusManager.cs
- ErrorItem.cs
- CodeSnippetCompileUnit.cs