Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / clr / src / BCL / System / Security / Permissions / ReflectionPermission.cs / 1 / ReflectionPermission.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== // ReflectionPermission.cs // namespace System.Security.Permissions { using System; using System.IO; using System.Security.Util; using System.Text; using System.Runtime.InteropServices; using System.Runtime.Remoting; using System.Security; using System.Reflection; using System.Globalization; [ComVisible(true)] [Flags] [Serializable] public enum ReflectionPermissionFlag { NoFlags = 0x00, [Obsolete("This API has been deprecated. http://go.microsoft.com/fwlink/?linkid=14202")] TypeInformation = 0x01, MemberAccess = 0x02, ReflectionEmit = 0x04, [ComVisible(false)] RestrictedMemberAccess = 0x08, AllFlags = 0x07 } [ComVisible(true)] [Serializable] sealed public class ReflectionPermission : CodeAccessPermission, IUnrestrictedPermission, IBuiltInPermission { // ReflectionPermissionFlag.AllFlags doesn't contain the new value RestrictedMemberAccess, // but we cannot change its value now because that will break apps that have that old value baked in. // We should use this const that truely contains "all" flags instead of ReflectionPermissionFlag.AllFlags. internal const ReflectionPermissionFlag AllFlagsAndMore = ReflectionPermissionFlag.AllFlags | ReflectionPermissionFlag.RestrictedMemberAccess; private ReflectionPermissionFlag m_flags; // // Public Constructors // public ReflectionPermission(PermissionState state) { if (state == PermissionState.Unrestricted) { SetUnrestricted( true ); } else if (state == PermissionState.None) { SetUnrestricted( false ); } else { throw new ArgumentException(Environment.GetResourceString("Argument_InvalidPermissionState")); } } // Parameters: // public ReflectionPermission(ReflectionPermissionFlag flag) { VerifyAccess(flag); SetUnrestricted(false); m_flags = flag; } //------------------------------------------------------ // // PRIVATE AND PROTECTED MODIFIERS // //----------------------------------------------------- private void SetUnrestricted(bool unrestricted) { if (unrestricted) { m_flags = ReflectionPermission.AllFlagsAndMore; } else { Reset(); } } private void Reset() { m_flags = ReflectionPermissionFlag.NoFlags; } public ReflectionPermissionFlag Flags { set { VerifyAccess(value); m_flags = value; } get { return m_flags; } } #if ZERO // Do not remove this code, usefull for debugging public override String ToString() { StringBuilder sb = new StringBuilder(); sb.Append("ReflectionPermission("); if (IsUnrestricted()) { sb.Append("Unrestricted"); } else { if (GetFlag(ReflectionPermissionFlag.TypeInformation)) sb.Append("TypeInformation; "); if (GetFlag(ReflectionPermissionFlag.MemberAccess)) sb.Append("MemberAccess; "); if (GetFlag(ReflectionPermissionFlag.ReflectionEmit)) sb.Append("ReflectionEmit; "); } sb.Append(")"); return sb.ToString(); } #endif // // CodeAccessPermission implementation // public bool IsUnrestricted() { return m_flags == ReflectionPermission.AllFlagsAndMore; } // // IPermission implementation // public override IPermission Union(IPermission other) { if (other == null) { return this.Copy(); } else if (!VerifyType(other)) { throw new ArgumentException( String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName) ); } ReflectionPermission operand = (ReflectionPermission)other; if (this.IsUnrestricted() || operand.IsUnrestricted()) { return new ReflectionPermission( PermissionState.Unrestricted ); } else { ReflectionPermissionFlag flag_union = (ReflectionPermissionFlag)(m_flags | operand.m_flags); return(new ReflectionPermission(flag_union)); } } public override bool IsSubsetOf(IPermission target) { if (target == null) { return m_flags == ReflectionPermissionFlag.NoFlags; } try { ReflectionPermission operand = (ReflectionPermission)target; if (operand.IsUnrestricted()) return true; else if (this.IsUnrestricted()) return false; else return (((int)this.m_flags) & ~((int)operand.m_flags)) == 0; } 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) ); } ReflectionPermission operand = (ReflectionPermission)target; ReflectionPermissionFlag newFlags = operand.m_flags & this.m_flags; if (newFlags == ReflectionPermissionFlag.NoFlags) return null; else return new ReflectionPermission( newFlags ); } public override IPermission Copy() { if (this.IsUnrestricted()) { return new ReflectionPermission(PermissionState.Unrestricted); } else { return new ReflectionPermission((ReflectionPermissionFlag)m_flags); } } // // IEncodable Interface private void VerifyAccess(ReflectionPermissionFlag type) { if ((type & ~ReflectionPermission.AllFlagsAndMore) != 0) throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Arg_EnumIllegalVal"), (int)type)); } //----------------------------------------------------- // // PUBLIC ENCODING METHODS // //----------------------------------------------------- public override SecurityElement ToXml() { SecurityElement esd = CodeAccessPermission.CreatePermissionElement( this, "System.Security.Permissions.ReflectionPermission" ); if (!IsUnrestricted()) { esd.AddAttribute( "Flags", XMLUtil.BitFieldEnumToString( typeof( ReflectionPermissionFlag ), m_flags ) ); } else { esd.AddAttribute( "Unrestricted", "true" ); } return esd; } public override void FromXml(SecurityElement esd) { CodeAccessPermission.ValidateElement( esd, this ); if (XMLUtil.IsUnrestricted( esd )) { m_flags = ReflectionPermission.AllFlagsAndMore; return; } Reset () ; SetUnrestricted (false) ; String flags = esd.Attribute( "Flags" ); if (flags != null) m_flags = (ReflectionPermissionFlag)Enum.Parse( typeof( ReflectionPermissionFlag ), flags ); } ///int IBuiltInPermission.GetTokenIndex() { return ReflectionPermission.GetTokenIndex(); } internal static int GetTokenIndex() { return BuiltInPermissionIndex.ReflectionPermissionIndex; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== // ReflectionPermission.cs // namespace System.Security.Permissions { using System; using System.IO; using System.Security.Util; using System.Text; using System.Runtime.InteropServices; using System.Runtime.Remoting; using System.Security; using System.Reflection; using System.Globalization; [ComVisible(true)] [Flags] [Serializable] public enum ReflectionPermissionFlag { NoFlags = 0x00, [Obsolete("This API has been deprecated. http://go.microsoft.com/fwlink/?linkid=14202")] TypeInformation = 0x01, MemberAccess = 0x02, ReflectionEmit = 0x04, [ComVisible(false)] RestrictedMemberAccess = 0x08, AllFlags = 0x07 } [ComVisible(true)] [Serializable] sealed public class ReflectionPermission : CodeAccessPermission, IUnrestrictedPermission, IBuiltInPermission { // ReflectionPermissionFlag.AllFlags doesn't contain the new value RestrictedMemberAccess, // but we cannot change its value now because that will break apps that have that old value baked in. // We should use this const that truely contains "all" flags instead of ReflectionPermissionFlag.AllFlags. internal const ReflectionPermissionFlag AllFlagsAndMore = ReflectionPermissionFlag.AllFlags | ReflectionPermissionFlag.RestrictedMemberAccess; private ReflectionPermissionFlag m_flags; // // Public Constructors // public ReflectionPermission(PermissionState state) { if (state == PermissionState.Unrestricted) { SetUnrestricted( true ); } else if (state == PermissionState.None) { SetUnrestricted( false ); } else { throw new ArgumentException(Environment.GetResourceString("Argument_InvalidPermissionState")); } } // Parameters: // public ReflectionPermission(ReflectionPermissionFlag flag) { VerifyAccess(flag); SetUnrestricted(false); m_flags = flag; } //------------------------------------------------------ // // PRIVATE AND PROTECTED MODIFIERS // //----------------------------------------------------- private void SetUnrestricted(bool unrestricted) { if (unrestricted) { m_flags = ReflectionPermission.AllFlagsAndMore; } else { Reset(); } } private void Reset() { m_flags = ReflectionPermissionFlag.NoFlags; } public ReflectionPermissionFlag Flags { set { VerifyAccess(value); m_flags = value; } get { return m_flags; } } #if ZERO // Do not remove this code, usefull for debugging public override String ToString() { StringBuilder sb = new StringBuilder(); sb.Append("ReflectionPermission("); if (IsUnrestricted()) { sb.Append("Unrestricted"); } else { if (GetFlag(ReflectionPermissionFlag.TypeInformation)) sb.Append("TypeInformation; "); if (GetFlag(ReflectionPermissionFlag.MemberAccess)) sb.Append("MemberAccess; "); if (GetFlag(ReflectionPermissionFlag.ReflectionEmit)) sb.Append("ReflectionEmit; "); } sb.Append(")"); return sb.ToString(); } #endif // // CodeAccessPermission implementation // public bool IsUnrestricted() { return m_flags == ReflectionPermission.AllFlagsAndMore; } // // IPermission implementation // public override IPermission Union(IPermission other) { if (other == null) { return this.Copy(); } else if (!VerifyType(other)) { throw new ArgumentException( String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Argument_WrongType"), this.GetType().FullName) ); } ReflectionPermission operand = (ReflectionPermission)other; if (this.IsUnrestricted() || operand.IsUnrestricted()) { return new ReflectionPermission( PermissionState.Unrestricted ); } else { ReflectionPermissionFlag flag_union = (ReflectionPermissionFlag)(m_flags | operand.m_flags); return(new ReflectionPermission(flag_union)); } } public override bool IsSubsetOf(IPermission target) { if (target == null) { return m_flags == ReflectionPermissionFlag.NoFlags; } try { ReflectionPermission operand = (ReflectionPermission)target; if (operand.IsUnrestricted()) return true; else if (this.IsUnrestricted()) return false; else return (((int)this.m_flags) & ~((int)operand.m_flags)) == 0; } 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) ); } ReflectionPermission operand = (ReflectionPermission)target; ReflectionPermissionFlag newFlags = operand.m_flags & this.m_flags; if (newFlags == ReflectionPermissionFlag.NoFlags) return null; else return new ReflectionPermission( newFlags ); } public override IPermission Copy() { if (this.IsUnrestricted()) { return new ReflectionPermission(PermissionState.Unrestricted); } else { return new ReflectionPermission((ReflectionPermissionFlag)m_flags); } } // // IEncodable Interface private void VerifyAccess(ReflectionPermissionFlag type) { if ((type & ~ReflectionPermission.AllFlagsAndMore) != 0) throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Arg_EnumIllegalVal"), (int)type)); } //----------------------------------------------------- // // PUBLIC ENCODING METHODS // //----------------------------------------------------- public override SecurityElement ToXml() { SecurityElement esd = CodeAccessPermission.CreatePermissionElement( this, "System.Security.Permissions.ReflectionPermission" ); if (!IsUnrestricted()) { esd.AddAttribute( "Flags", XMLUtil.BitFieldEnumToString( typeof( ReflectionPermissionFlag ), m_flags ) ); } else { esd.AddAttribute( "Unrestricted", "true" ); } return esd; } public override void FromXml(SecurityElement esd) { CodeAccessPermission.ValidateElement( esd, this ); if (XMLUtil.IsUnrestricted( esd )) { m_flags = ReflectionPermission.AllFlagsAndMore; return; } Reset () ; SetUnrestricted (false) ; String flags = esd.Attribute( "Flags" ); if (flags != null) m_flags = (ReflectionPermissionFlag)Enum.Parse( typeof( ReflectionPermissionFlag ), flags ); } /// int IBuiltInPermission.GetTokenIndex() { return ReflectionPermission.GetTokenIndex(); } internal static int GetTokenIndex() { return BuiltInPermissionIndex.ReflectionPermissionIndex; } } } // 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
- XmlDataSourceView.cs
- MissingFieldException.cs
- basecomparevalidator.cs
- GlobalAllocSafeHandle.cs
- TypePresenter.xaml.cs
- CodeIndexerExpression.cs
- XmlEncoding.cs
- CommonProperties.cs
- OdbcFactory.cs
- ContextStaticAttribute.cs
- Substitution.cs
- File.cs
- ZeroOpNode.cs
- Stackframe.cs
- _IPv6Address.cs
- RsaSecurityTokenAuthenticator.cs
- SoapElementAttribute.cs
- infer.cs
- PropertyToken.cs
- SiteMapDataSourceDesigner.cs
- ZipIOExtraFieldZip64Element.cs
- ListItemParagraph.cs
- NCryptSafeHandles.cs
- OdbcConnectionStringbuilder.cs
- PrintPreviewDialog.cs
- TiffBitmapDecoder.cs
- AnimationStorage.cs
- isolationinterop.cs
- MimePart.cs
- GeneralTransformCollection.cs
- Converter.cs
- DataControlButton.cs
- Geometry3D.cs
- FirstMatchCodeGroup.cs
- WebPart.cs
- DataFormat.cs
- WindowsStartMenu.cs
- VisemeEventArgs.cs
- AdRotator.cs
- DbConnectionClosed.cs
- RegexRunner.cs
- ChildTable.cs
- UnsafeNativeMethods.cs
- FileReader.cs
- ValidationSummaryDesigner.cs
- Label.cs
- ToolStripItemImageRenderEventArgs.cs
- WebServiceBindingAttribute.cs
- CollectionViewGroupRoot.cs
- HandleCollector.cs
- TextDecorationCollection.cs
- DataGridViewCellEventArgs.cs
- AssemblyUtil.cs
- ScriptIgnoreAttribute.cs
- DetailsViewRowCollection.cs
- EventLogPermissionAttribute.cs
- FixedSOMElement.cs
- JournalEntryListConverter.cs
- BaseTemplateCodeDomTreeGenerator.cs
- BitConverter.cs
- ComboBox.cs
- TextServicesHost.cs
- EventManager.cs
- ToolStripLabel.cs
- CharacterHit.cs
- GeometryValueSerializer.cs
- Viewport3DVisual.cs
- FreezableDefaultValueFactory.cs
- DataGridViewBand.cs
- ThreadInterruptedException.cs
- DeviceSpecificDialogCachedState.cs
- ErrorHandler.cs
- BoundColumn.cs
- DataGridRelationshipRow.cs
- AttributeCollection.cs
- Menu.cs
- ContextDataSourceView.cs
- WinFormsComponentEditor.cs
- RootBrowserWindowProxy.cs
- ResumeStoryboard.cs
- HostedController.cs
- SqlPersistenceWorkflowInstanceDescription.cs
- PersonalizationProviderCollection.cs
- JournalEntryStack.cs
- ApplicationSecurityInfo.cs
- ToolBarTray.cs
- DataRowChangeEvent.cs
- HostingEnvironmentSection.cs
- ForceCopyBuildProvider.cs
- SQLDateTimeStorage.cs
- ScrollChangedEventArgs.cs
- ThicknessAnimationBase.cs
- XmlSubtreeReader.cs
- TypeForwardedFromAttribute.cs
- TextEditorCharacters.cs
- BuiltInExpr.cs
- DesignerCategoryAttribute.cs
- BaseValidator.cs
- RegistryDataKey.cs
- ExtentCqlBlock.cs