Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / untmp / whidbey / QFE / ndp / clr / src / BCL / System / Security / Policy / StrongNameMembershipCondition.cs / 2 / StrongNameMembershipCondition.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== // StrongNameMembershipCondition.cs // // Implementation of membership condition for zones // namespace System.Security.Policy { using System.Text; using System.Configuration.Assemblies; using System; using SecurityManager = System.Security.SecurityManager; using StrongNamePublicKeyBlob = System.Security.Permissions.StrongNamePublicKeyBlob; using PermissionSet = System.Security.PermissionSet; using SecurityElement = System.Security.SecurityElement; using System.Collections; using System.Globalization; [Serializable] [System.Runtime.InteropServices.ComVisible(true)] sealed public class StrongNameMembershipCondition : IMembershipCondition, IConstantMembershipCondition, IReportMatchMembershipCondition { //------------------------------------------------------ // // PRIVATE STATE DATA // //----------------------------------------------------- private StrongNamePublicKeyBlob m_publicKeyBlob; private String m_name; private Version m_version; private SecurityElement m_element; //----------------------------------------------------- // // PUBLIC CONSTRUCTORS // //----------------------------------------------------- internal StrongNameMembershipCondition() { } public StrongNameMembershipCondition( StrongNamePublicKeyBlob blob, String name, Version version ) { if (blob == null) throw new ArgumentNullException( "blob" ); if (name != null && name.Equals( "" )) throw new ArgumentException( Environment.GetResourceString( "Argument_EmptyStrongName" ) ); m_publicKeyBlob = blob; m_name = name; m_version = version; } //------------------------------------------------------ // // PUBLIC ACCESSOR METHODS // //----------------------------------------------------- public StrongNamePublicKeyBlob PublicKey { set { if (value == null) throw new ArgumentNullException( "PublicKey" ); m_publicKeyBlob = value; } get { if (m_publicKeyBlob == null && m_element != null) ParseKeyBlob(); return m_publicKeyBlob; } } public String Name { set { if (value == null) { if (m_publicKeyBlob == null && m_element != null) ParseKeyBlob(); if ((Object) m_version == null && m_element != null) ParseVersion(); m_element = null; } else if (value.Length == 0) throw new ArgumentException( Environment.GetResourceString("Argument_EmptyName" )); m_name = value; } get { if (m_name == null && m_element != null) ParseName(); return m_name; } } public Version Version { set { if (value == null) { if (m_name == null && m_element != null) ParseName(); if (m_publicKeyBlob == null && m_element != null) ParseKeyBlob(); m_element = null; } m_version = value; } get { if ((Object) m_version == null && m_element != null) ParseVersion(); return m_version; } } //------------------------------------------------------ // // IMEMBERSHIPCONDITION IMPLEMENTATION // //------------------------------------------------------ public bool Check( Evidence evidence ) { object usedEvidence = null; return (this as IReportMatchMembershipCondition).Check(evidence, out usedEvidence); } bool IReportMatchMembershipCondition.Check(Evidence evidence, out object usedEvidence) { usedEvidence = null; if (evidence == null) return false; IEnumerator enumerator = evidence.GetHostEnumerator(); while (enumerator.MoveNext()) { if (enumerator.Current is StrongName) { StrongName name = (StrongName)enumerator.Current; if (( this.PublicKey != null && this.PublicKey.Equals( name.PublicKey ) ) && ( this.Name == null || (name.Name != null && StrongName.CompareNames( name.Name, this.Name ) )) && ( (Object) this.Version == null || ((Object) name.Version != null && name.Version.CompareTo( this.Version ) == 0 ))) { // Note that we explicitly do not want to mark the strong name evidence as used at // this point, since we could be a child code group where our parent provides more // trust than we do. For instance, if we're in a setup like this: // // AllCode -> FullTrust // StrongName -> FullTrust // // the StrongName code group didn't add anything to the final grant set and therefore // does not need to be evaluated. usedEvidence = name; return true; } } } return false; } public IMembershipCondition Copy() { return new StrongNameMembershipCondition( PublicKey, Name, Version); } private const String s_tagName = "Name"; private const String s_tagVersion = "AssemblyVersion"; private const String s_tagPublicKeyBlob = "PublicKeyBlob"; public SecurityElement ToXml() { return ToXml( null ); } public void FromXml( SecurityElement e ) { FromXml( e, null ); } public SecurityElement ToXml( PolicyLevel level ) { SecurityElement root = new SecurityElement( "IMembershipCondition" ); System.Security.Util.XMLUtil.AddClassAttribute( root, this.GetType(), "System.Security.Policy.StrongNameMembershipCondition" ); // If you hit this assertt then most likely you are trying to change the name of this class. // This is ok as long as you change the hard coded string above and change the assertt below. BCLDebug.Assert( this.GetType().FullName.Equals( "System.Security.Policy.StrongNameMembershipCondition" ), "Class name changed!" ); root.AddAttribute( "version", "1" ); if (PublicKey != null) root.AddAttribute( s_tagPublicKeyBlob, System.Security.Util.Hex.EncodeHexString( PublicKey.PublicKey ) ); if (Name != null) root.AddAttribute( s_tagName, Name ); if ((Object) Version != null) root.AddAttribute( s_tagVersion, Version.ToString() ); return root; } public void FromXml( SecurityElement e, PolicyLevel level ) { if (e == null) throw new ArgumentNullException("e"); if (!e.Tag.Equals( "IMembershipCondition" )) { throw new ArgumentException( Environment.GetResourceString( "Argument_MembershipConditionElement" ) ); } lock (this) { m_name = null; m_publicKeyBlob = null; m_version = null; m_element = e; } } private void ParseName() { lock (this) { if (m_element == null) return; String elSite = m_element.Attribute( s_tagName ); m_name = elSite == null ? null : elSite; if ((Object) m_version != null && m_name != null && m_publicKeyBlob != null) { m_element = null; } } } private void ParseKeyBlob() { lock (this) { if (m_element == null) return; String elBlob = m_element.Attribute( s_tagPublicKeyBlob ); StrongNamePublicKeyBlob publicKeyBlob = new StrongNamePublicKeyBlob(); if (elBlob != null) publicKeyBlob.PublicKey = System.Security.Util.Hex.DecodeHexString( elBlob ); else throw new ArgumentException( Environment.GetResourceString( "Argument_BlobCannotBeNull" ) ); m_publicKeyBlob = publicKeyBlob; if ((Object) m_version != null && m_name != null && m_publicKeyBlob != null) { m_element = null; } } } private void ParseVersion() { lock (this) { if (m_element == null) return; String elVersion = m_element.Attribute( s_tagVersion ); m_version = elVersion == null ? null : new Version( elVersion ); if ((Object) m_version != null && m_name != null && m_publicKeyBlob != null) { m_element = null; } } } public override String ToString() { String sName = ""; String sVersion = ""; if (Name != null) sName = " " + String.Format( CultureInfo.CurrentCulture, Environment.GetResourceString( "StrongName_Name" ), Name ); if ((Object) Version != null) sVersion = " " + String.Format( CultureInfo.CurrentCulture, Environment.GetResourceString( "StrongName_Version" ), Version ); return String.Format( CultureInfo.CurrentCulture, Environment.GetResourceString( "StrongName_ToString" ), System.Security.Util.Hex.EncodeHexString( PublicKey.PublicKey ), sName, sVersion ); } public override bool Equals( Object o ) { StrongNameMembershipCondition that = (o as StrongNameMembershipCondition); if (that != null) { if (this.m_publicKeyBlob == null && this.m_element != null) this.ParseKeyBlob(); if (that.m_publicKeyBlob == null && that.m_element != null) that.ParseKeyBlob(); if (Equals( this.m_publicKeyBlob, that.m_publicKeyBlob )) { if (this.m_name == null && this.m_element != null) this.ParseName(); if (that.m_name == null && that.m_element != null) that.ParseName(); if (Equals( this.m_name, that.m_name )) { if (this.m_version == null && this.m_element != null) this.ParseVersion(); if (that.m_version == null && that.m_element != null) that.ParseVersion(); if ( Equals( this.m_version, that.m_version )) { return true; } } } } return false; } public override int GetHashCode() { if (m_publicKeyBlob == null && m_element != null) ParseKeyBlob(); if (m_publicKeyBlob != null) { return m_publicKeyBlob.GetHashCode(); } else { if (m_name == null && m_element != null) ParseName(); if (m_version == null && m_element != null) ParseVersion(); if (m_name != null || m_version != null) { return (m_name == null ? 0 : m_name.GetHashCode()) + (m_version == null ? 0 : m_version.GetHashCode()); } else { return typeof( StrongNameMembershipCondition ).GetHashCode(); } } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- Substitution.cs
- SortQuery.cs
- MultiBinding.cs
- SchemaMapping.cs
- LicenseManager.cs
- SqlError.cs
- CTreeGenerator.cs
- BoundColumn.cs
- ModelTreeEnumerator.cs
- Point3DCollectionValueSerializer.cs
- DataGridState.cs
- FrameworkContextData.cs
- RequestDescription.cs
- SoapWriter.cs
- ReferenceSchema.cs
- BamlRecordHelper.cs
- RowUpdatingEventArgs.cs
- WeakReadOnlyCollection.cs
- OciEnlistContext.cs
- COM2ExtendedBrowsingHandler.cs
- OracleMonthSpan.cs
- EventSetter.cs
- VSWCFServiceContractGenerator.cs
- versioninfo.cs
- ImageList.cs
- LongValidatorAttribute.cs
- HttpListenerContext.cs
- WaitHandleCannotBeOpenedException.cs
- COM2ComponentEditor.cs
- SoapExtensionStream.cs
- ColorContextHelper.cs
- TemplateFactory.cs
- BamlBinaryReader.cs
- ItemMap.cs
- DotExpr.cs
- DrawingContextDrawingContextWalker.cs
- MetadataUtilsSmi.cs
- DataSetUtil.cs
- ToolStripContainer.cs
- ScriptRegistrationManager.cs
- DiscoveryMessageSequence.cs
- FormatVersion.cs
- SynchronizedDispatch.cs
- XmlValueConverter.cs
- SslStream.cs
- COM2PropertyDescriptor.cs
- HtmlInputImage.cs
- BitmapImage.cs
- ButtonBase.cs
- Transform.cs
- VectorCollection.cs
- ControlBindingsCollection.cs
- Crypto.cs
- SqlVisitor.cs
- typedescriptorpermissionattribute.cs
- StylusEditingBehavior.cs
- _DomainName.cs
- FastEncoderWindow.cs
- XmlEventCache.cs
- AppearanceEditorPart.cs
- KeyPressEvent.cs
- CssTextWriter.cs
- SocketSettings.cs
- IChannel.cs
- GetImportFileNameRequest.cs
- DependencyObjectType.cs
- VirtualizingPanel.cs
- NamespaceMapping.cs
- StickyNoteAnnotations.cs
- WorkflowDesignerColors.cs
- Cursors.cs
- XmlSchemaInclude.cs
- LogEntrySerializer.cs
- Encoding.cs
- PathStreamGeometryContext.cs
- EventWaitHandleSecurity.cs
- AuthenticationSection.cs
- DesigntimeLicenseContext.cs
- IgnoreDeviceFilterElementCollection.cs
- ParentUndoUnit.cs
- DependencyPropertyHelper.cs
- TypeUtil.cs
- PostBackTrigger.cs
- EntityDataSourceViewSchema.cs
- MemoryFailPoint.cs
- ToolStripContentPanelRenderEventArgs.cs
- ParameterExpression.cs
- DbParameterHelper.cs
- ReferencedAssembly.cs
- DropShadowBitmapEffect.cs
- WorkflowMarkupSerializationException.cs
- SqlTypeSystemProvider.cs
- ProtocolViolationException.cs
- XmlWellformedWriterHelpers.cs
- ManualResetEvent.cs
- SafeSecurityHandles.cs
- WindowsTokenRoleProvider.cs
- ThemeableAttribute.cs
- ArrayElementGridEntry.cs
- OleDbDataReader.cs