Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / clr / src / BCL / System / Security / Permissions / ZoneIdentityPermission.cs / 1305376 / ZoneIdentityPermission.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== // ZoneIdentityPermission.cs // //[....] // namespace System.Security.Permissions { using System; #if FEATURE_CAS_POLICY using SecurityElement = System.Security.SecurityElement; #endif // FEATURE_CAS_POLICY using System.Globalization; using System.Runtime.Serialization; using System.Collections; using System.Collections.Generic; using System.Diagnostics.Contracts; [System.Runtime.InteropServices.ComVisible(true)] [Serializable] sealed public class ZoneIdentityPermission : CodeAccessPermission, IBuiltInPermission { //------------------------------------------------------ // // PRIVATE STATE DATA // //----------------------------------------------------- // Zone Enum Flag // ----- ----- ----- // NoZone -1 0x00 // MyComputer 0 0x01 (1 << 0) // Intranet 1 0x02 (1 << 1) // Trusted 2 0x04 (1 << 2) // Internet 3 0x08 (1 << 3) // Untrusted 4 0x10 (1 << 4) private const uint AllZones = 0x1f; [OptionalField(VersionAdded = 2)] private uint m_zones; #if FEATURE_REMOTING // This field will be populated only for non X-AD scenarios where we create a XML-ised string of the Permission [OptionalField(VersionAdded = 2)] private String m_serializedPermission; // This field is legacy info from v1.x and is never used in v2.0 and beyond: purely for serialization purposes private SecurityZone m_zone = SecurityZone.NoZone; [OnDeserialized] private void OnDeserialized(StreamingContext ctx) { if ((ctx.State & ~(StreamingContextStates.Clone|StreamingContextStates.CrossAppDomain)) != 0) { // v2.0 and beyond XML case if (m_serializedPermission != null) { FromXml(SecurityElement.FromString(m_serializedPermission)); m_serializedPermission = null; } else //v1.x case where we read the m_zone value { SecurityZone = m_zone; m_zone = SecurityZone.NoZone; } } } [OnSerializing] private void OnSerializing(StreamingContext ctx) { if ((ctx.State & ~(StreamingContextStates.Clone|StreamingContextStates.CrossAppDomain)) != 0) { m_serializedPermission = ToXml().ToString(); //for the v2 and beyond case m_zone = SecurityZone; } } [OnSerialized] private void OnSerialized(StreamingContext ctx) { if ((ctx.State & ~(StreamingContextStates.Clone|StreamingContextStates.CrossAppDomain)) != 0) { m_serializedPermission = null; m_zone = SecurityZone.NoZone; } } #endif // FEATURE_REMOTING //----------------------------------------------------- // // PUBLIC CONSTRUCTORS // //----------------------------------------------------- public ZoneIdentityPermission(PermissionState state) { if (state == PermissionState.Unrestricted) { m_zones = AllZones; } else if (state == PermissionState.None) { m_zones = 0; } else { throw new ArgumentException(Environment.GetResourceString("Argument_InvalidPermissionState")); } } public ZoneIdentityPermission( SecurityZone zone ) { this.SecurityZone = zone; } internal ZoneIdentityPermission( uint zones ) { m_zones = (zones & AllZones); } // Internal function to append all the Zone in this permission to the input ArrayList internal void AppendZones(ArrayList zoneList) { int nEnum = 0; uint nFlag; for(nFlag = 1; nFlag < AllZones; nFlag <<= 1) { if((m_zones & nFlag) != 0) { zoneList.Add((SecurityZone)nEnum); } nEnum++; } } //------------------------------------------------------ // // PUBLIC ACCESSOR METHODS // //----------------------------------------------------- public SecurityZone SecurityZone { set { VerifyZone( value ); if(value == SecurityZone.NoZone) m_zones = 0; else m_zones = (uint)1 << (int)value; } get { SecurityZone z = SecurityZone.NoZone; int nEnum = 0; uint nFlag; for(nFlag = 1; nFlag < AllZones; nFlag <<= 1) { if((m_zones & nFlag) != 0) { if(z == SecurityZone.NoZone) z = (SecurityZone)nEnum; else return SecurityZone.NoZone; } nEnum++; } return z; } } //------------------------------------------------------ // // PRIVATE AND PROTECTED HELPERS FOR ACCESSORS AND CONSTRUCTORS // //------------------------------------------------------ private static void VerifyZone( SecurityZone zone ) { if (zone < SecurityZone.NoZone || zone > SecurityZone.Untrusted) { throw new ArgumentException( Environment.GetResourceString("Argument_IllegalZone") ); } Contract.EndContractBlock(); } //----------------------------------------------------- // // CODEACCESSPERMISSION IMPLEMENTATION // //------------------------------------------------------ //----------------------------------------------------- // // IPERMISSION IMPLEMENTATION // //----------------------------------------------------- public override IPermission Copy() { return new ZoneIdentityPermission(this.m_zones); } public override bool IsSubsetOf(IPermission target) { if (target == null) return this.m_zones == 0; ZoneIdentityPermission that = target as ZoneIdentityPermission; if (that == null) throw new ArgumentException(Environment.GetResourceString("Argument_WrongType", this.GetType().FullName)); return (this.m_zones & that.m_zones) == this.m_zones; } public override IPermission Intersect(IPermission target) { if (target == null) return null; ZoneIdentityPermission that = target as ZoneIdentityPermission; if (that == null) throw new ArgumentException(Environment.GetResourceString("Argument_WrongType", this.GetType().FullName)); uint newZones = this.m_zones & that.m_zones; if(newZones == 0) return null; return new ZoneIdentityPermission(newZones); } public override IPermission Union(IPermission target) { if (target == null) return this.m_zones != 0 ? this.Copy() : null; ZoneIdentityPermission that = target as ZoneIdentityPermission; if (that == null) throw new ArgumentException(Environment.GetResourceString("Argument_WrongType", this.GetType().FullName)); return new ZoneIdentityPermission(this.m_zones | that.m_zones); } #if FEATURE_CAS_POLICY public override SecurityElement ToXml() { SecurityElement esd = CodeAccessPermission.CreatePermissionElement( this, "System.Security.Permissions.ZoneIdentityPermission" ); if (SecurityZone != SecurityZone.NoZone) { esd.AddAttribute( "Zone", Enum.GetName( typeof( SecurityZone ), this.SecurityZone ) ); } else { int nEnum = 0; uint nFlag; for(nFlag = 1; nFlag < AllZones; nFlag <<= 1) { if((m_zones & nFlag) != 0) { SecurityElement child = new SecurityElement("Zone"); child.AddAttribute( "Zone", Enum.GetName( typeof( SecurityZone ), (SecurityZone)nEnum ) ); esd.AddChild(child); } nEnum++; } } return esd; } public override void FromXml(SecurityElement esd) { m_zones = 0; CodeAccessPermission.ValidateElement( esd, this ); String eZone = esd.Attribute( "Zone" ); if (eZone != null) SecurityZone = (SecurityZone)Enum.Parse( typeof( SecurityZone ), eZone ); if(esd.Children != null) { foreach(SecurityElement child in esd.Children) { eZone = child.Attribute( "Zone" ); int enm = (int)Enum.Parse( typeof( SecurityZone ), eZone ); if(enm == (int)SecurityZone.NoZone) continue; m_zones |= ((uint)1 << enm); } } } #endif // FEATURE_CAS_POLICY ///int IBuiltInPermission.GetTokenIndex() { return ZoneIdentityPermission.GetTokenIndex(); } internal static int GetTokenIndex() { return BuiltInPermissionIndex.ZoneIdentityPermissionIndex; } } } // 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
- Unit.cs
- BindStream.cs
- ICollection.cs
- dataprotectionpermission.cs
- DataGridViewCellFormattingEventArgs.cs
- Visual3DCollection.cs
- Timer.cs
- WebPartDisplayModeCollection.cs
- TextViewBase.cs
- XmlExpressionDumper.cs
- SafeEventHandle.cs
- InheritanceContextChangedEventManager.cs
- GroupBoxRenderer.cs
- RangeExpression.cs
- ComponentCommands.cs
- TextDecorationLocationValidation.cs
- ConfigsHelper.cs
- WmlPhoneCallAdapter.cs
- CompleteWizardStep.cs
- DataGridViewDataConnection.cs
- DataObjectSettingDataEventArgs.cs
- SaveFileDialog.cs
- DatatypeImplementation.cs
- DocumentPage.cs
- CustomErrorsSectionWrapper.cs
- SpotLight.cs
- GlyphInfoList.cs
- SoapSchemaMember.cs
- DesignerValidatorAdapter.cs
- RequestQueryProcessor.cs
- MenuItemStyle.cs
- UserPreferenceChangingEventArgs.cs
- ElementInit.cs
- TextEditorLists.cs
- Point4D.cs
- GroupQuery.cs
- NamespaceImport.cs
- UrlPath.cs
- SafeBitVector32.cs
- FacetDescriptionElement.cs
- LiteralControl.cs
- DBCSCodePageEncoding.cs
- SmtpCommands.cs
- WindowManager.cs
- UnsafeNativeMethods.cs
- EditorPartCollection.cs
- SqlDuplicator.cs
- EmbeddedObject.cs
- SmtpClient.cs
- KeyValueInternalCollection.cs
- WpfKnownMemberInvoker.cs
- XmlSchemaSimpleTypeList.cs
- BrowserCapabilitiesFactory.cs
- SafeUserTokenHandle.cs
- LinqDataSourceInsertEventArgs.cs
- ScrollProviderWrapper.cs
- Lock.cs
- DataListItemCollection.cs
- FusionWrap.cs
- BinaryObjectReader.cs
- ComponentEvent.cs
- ComponentChangingEvent.cs
- OleDbException.cs
- EventMappingSettings.cs
- ViewGenerator.cs
- WindowsIdentity.cs
- SmiEventSink.cs
- SqlConnection.cs
- XmlSchemaCollection.cs
- Control.cs
- MobileControlBuilder.cs
- Point3DAnimation.cs
- ServiceDefaults.cs
- IconHelper.cs
- Function.cs
- Parser.cs
- TransactionTable.cs
- Pair.cs
- NameValueConfigurationCollection.cs
- KeyValuePair.cs
- DefaultSection.cs
- ClientApiGenerator.cs
- ComPlusInstanceProvider.cs
- DefaultValueTypeConverter.cs
- RectangleGeometry.cs
- DataRecordInternal.cs
- SystemIcmpV4Statistics.cs
- XmlCDATASection.cs
- ImageButton.cs
- ObjectReaderCompiler.cs
- FormViewPageEventArgs.cs
- SemanticResultValue.cs
- SystemFonts.cs
- XmlSchemaExporter.cs
- AutomationIdentifier.cs
- ListControl.cs
- ScriptRegistrationManager.cs
- WsdlBuildProvider.cs
- OdbcConnectionOpen.cs
- CodeCommentStatement.cs