Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / SystemNet / Net / PeerToPeer / PnrpPermission.cs / 1305376 / PnrpPermission.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Net.PeerToPeer { using System.Security; using System.Security.Permissions; using System.Globalization; ////// PnrpPermission atrribute /// [AttributeUsage(AttributeTargets.Method | AttributeTargets.Constructor | AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Assembly, AllowMultiple = true, Inherited = false)] [Serializable()] public sealed class PnrpPermissionAttribute : CodeAccessSecurityAttribute { ////// Just call base constructor /// /// public PnrpPermissionAttribute(SecurityAction action) : base(action) { } ////// As required by the SecurityAttribute class. /// ///public override IPermission CreatePermission() { if (Unrestricted) { return new PnrpPermission(PermissionState.Unrestricted); } else { return new PnrpPermission(PermissionState.None); } } } /// /// Currently we only support two levels - Unrestrictred or none /// [Serializable] public sealed class PnrpPermission : CodeAccessPermission, IUnrestrictedPermission { private bool m_noRestriction; internal static readonly PnrpPermission UnrestrictedPnrpPermission = new PnrpPermission(PermissionState.Unrestricted); ////// public PnrpPermission(PermissionState state) { m_noRestriction = (state == PermissionState.Unrestricted); } internal PnrpPermission(bool free) { m_noRestriction = free; } // IUnrestrictedPermission interface methods ////// Creates a new instance of the ////// class that passes all demands or that fails all demands. /// /// public bool IsUnrestricted() { return m_noRestriction; } // IPermission interface methods ////// Checks the overall permission state of the object. /// ////// public override IPermission Copy() { return new PnrpPermission(m_noRestriction); } ////// Creates a copy of a ///instance. /// /// public override IPermission Union(IPermission target) { // Pattern suggested by Security engine if (target == null) { return this.Copy(); } PnrpPermission other = target as PnrpPermission; if (other == null) { throw new ArgumentException( SR.GetString(SR.PnrpPermission_CantUnionWithNonPnrpPermission), "target"); } return new PnrpPermission(m_noRestriction || other.m_noRestriction); } ///Returns the logical union between two ///instances. /// public override IPermission Intersect(IPermission target) { // Pattern suggested by Security engine if (target == null) { return null; } PnrpPermission other = target as PnrpPermission; if (other == null) { throw new ArgumentException(SR.GetString(SR.PnrpPermission_CantIntersectWithNonPnrpPermission), "target"); } // return null if resulting permission is restricted and empty // Hence, the only way for a bool permission will be. if (this.m_noRestriction && other.m_noRestriction) { return new PnrpPermission(true); } return null; } ///Returns the logical intersection between two ///instances. /// public override bool IsSubsetOf(IPermission target) { // Pattern suggested by Security engine if (target == null) { return m_noRestriction == false; } PnrpPermission other = target as PnrpPermission; if (other == null) { throw new ArgumentException(SR.GetString(SR.PnrpPermission_TargetNotAPnrpPermission), "target"); } //Here is the matrix of result based on m_noRestriction for me and she // me.noRestriction she.noRestriction me.isSubsetOf(she) // 0 0 1 // 0 1 1 // 1 0 0 // 1 1 1 return (!m_noRestriction || other.m_noRestriction); } ///Compares two ///instances. /// Cinstrcy from a security element /// /// public override void FromXml(SecurityElement e) { if (e == null) { throw new ArgumentNullException(SR.GetString(SR.InvalidSecurityElem)); } // SecurityElement must be a permission element if (!e.Tag.Equals("IPermission")) { throw new ArgumentException(SR.GetString(SR.InvalidSecurityElem), "securityElement"); } string className = e.Attribute("class"); // SecurityElement must be a permission element for this type if (className == null) { throw new ArgumentException(SR.GetString(SR.InvalidSecurityElem), "securityElement"); } if (className.IndexOf(this.GetType().FullName, StringComparison.Ordinal) < 0) { throw new ArgumentException(SR.GetString(SR.InvalidSecurityElem), "securityElement"); } string str = e.Attribute("Unrestricted"); m_noRestriction = (str != null ? (0 == string.Compare(str, "true", StringComparison.OrdinalIgnoreCase)) : false); } ////// Copyto a security element /// ///public override SecurityElement ToXml() { SecurityElement securityElement = new SecurityElement("IPermission"); securityElement.AddAttribute("class", this.GetType().FullName + ", " + this.GetType().Module.Assembly.FullName.Replace('\"', '\'')); securityElement.AddAttribute("version", "1"); if (m_noRestriction) { securityElement.AddAttribute("Unrestricted", "true"); } return securityElement; } } // class PnrpPermission } // namespace System.Net.PeerToPeer // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ // // Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Net.PeerToPeer { using System.Security; using System.Security.Permissions; using System.Globalization; ////// PnrpPermission atrribute /// [AttributeUsage(AttributeTargets.Method | AttributeTargets.Constructor | AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Assembly, AllowMultiple = true, Inherited = false)] [Serializable()] public sealed class PnrpPermissionAttribute : CodeAccessSecurityAttribute { ////// Just call base constructor /// /// public PnrpPermissionAttribute(SecurityAction action) : base(action) { } ////// As required by the SecurityAttribute class. /// ///public override IPermission CreatePermission() { if (Unrestricted) { return new PnrpPermission(PermissionState.Unrestricted); } else { return new PnrpPermission(PermissionState.None); } } } /// /// Currently we only support two levels - Unrestrictred or none /// [Serializable] public sealed class PnrpPermission : CodeAccessPermission, IUnrestrictedPermission { private bool m_noRestriction; internal static readonly PnrpPermission UnrestrictedPnrpPermission = new PnrpPermission(PermissionState.Unrestricted); ////// public PnrpPermission(PermissionState state) { m_noRestriction = (state == PermissionState.Unrestricted); } internal PnrpPermission(bool free) { m_noRestriction = free; } // IUnrestrictedPermission interface methods ////// Creates a new instance of the ////// class that passes all demands or that fails all demands. /// /// public bool IsUnrestricted() { return m_noRestriction; } // IPermission interface methods ////// Checks the overall permission state of the object. /// ////// public override IPermission Copy() { return new PnrpPermission(m_noRestriction); } ////// Creates a copy of a ///instance. /// /// public override IPermission Union(IPermission target) { // Pattern suggested by Security engine if (target == null) { return this.Copy(); } PnrpPermission other = target as PnrpPermission; if (other == null) { throw new ArgumentException( SR.GetString(SR.PnrpPermission_CantUnionWithNonPnrpPermission), "target"); } return new PnrpPermission(m_noRestriction || other.m_noRestriction); } ///Returns the logical union between two ///instances. /// public override IPermission Intersect(IPermission target) { // Pattern suggested by Security engine if (target == null) { return null; } PnrpPermission other = target as PnrpPermission; if (other == null) { throw new ArgumentException(SR.GetString(SR.PnrpPermission_CantIntersectWithNonPnrpPermission), "target"); } // return null if resulting permission is restricted and empty // Hence, the only way for a bool permission will be. if (this.m_noRestriction && other.m_noRestriction) { return new PnrpPermission(true); } return null; } ///Returns the logical intersection between two ///instances. /// public override bool IsSubsetOf(IPermission target) { // Pattern suggested by Security engine if (target == null) { return m_noRestriction == false; } PnrpPermission other = target as PnrpPermission; if (other == null) { throw new ArgumentException(SR.GetString(SR.PnrpPermission_TargetNotAPnrpPermission), "target"); } //Here is the matrix of result based on m_noRestriction for me and she // me.noRestriction she.noRestriction me.isSubsetOf(she) // 0 0 1 // 0 1 1 // 1 0 0 // 1 1 1 return (!m_noRestriction || other.m_noRestriction); } ///Compares two ///instances. /// Cinstrcy from a security element /// /// public override void FromXml(SecurityElement e) { if (e == null) { throw new ArgumentNullException(SR.GetString(SR.InvalidSecurityElem)); } // SecurityElement must be a permission element if (!e.Tag.Equals("IPermission")) { throw new ArgumentException(SR.GetString(SR.InvalidSecurityElem), "securityElement"); } string className = e.Attribute("class"); // SecurityElement must be a permission element for this type if (className == null) { throw new ArgumentException(SR.GetString(SR.InvalidSecurityElem), "securityElement"); } if (className.IndexOf(this.GetType().FullName, StringComparison.Ordinal) < 0) { throw new ArgumentException(SR.GetString(SR.InvalidSecurityElem), "securityElement"); } string str = e.Attribute("Unrestricted"); m_noRestriction = (str != null ? (0 == string.Compare(str, "true", StringComparison.OrdinalIgnoreCase)) : false); } ////// Copyto a security element /// ///public override SecurityElement ToXml() { SecurityElement securityElement = new SecurityElement("IPermission"); securityElement.AddAttribute("class", this.GetType().FullName + ", " + this.GetType().Module.Assembly.FullName.Replace('\"', '\'')); securityElement.AddAttribute("version", "1"); if (m_noRestriction) { securityElement.AddAttribute("Unrestricted", "true"); } return securityElement; } } // class PnrpPermission } // namespace System.Net.PeerToPeer // 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
- TemplateInstanceAttribute.cs
- FusionWrap.cs
- TextAutomationPeer.cs
- ObjectStateEntry.cs
- VectorConverter.cs
- TypeUtils.cs
- pingexception.cs
- ReadOnlyDictionary.cs
- PropertyToken.cs
- MailBnfHelper.cs
- DesignBindingPicker.cs
- WebPartCollection.cs
- EntityDataSourceValidationException.cs
- HttpChannelHelpers.cs
- SecurityTokenProvider.cs
- AsyncCodeActivity.cs
- PerformanceCounterCategory.cs
- CodeIdentifiers.cs
- oledbconnectionstring.cs
- JsonDeserializer.cs
- SolidBrush.cs
- VisualBrush.cs
- ScriptControlManager.cs
- DataSourceSelectArguments.cs
- HostingEnvironment.cs
- CaseCqlBlock.cs
- UpdatePanelControlTrigger.cs
- DeferredBinaryDeserializerExtension.cs
- cache.cs
- AncillaryOps.cs
- ExceptionRoutedEventArgs.cs
- ListViewEditEventArgs.cs
- SelectionPatternIdentifiers.cs
- RecognizedAudio.cs
- DbTransaction.cs
- LinkTarget.cs
- OrderedDictionary.cs
- SqlPersonalizationProvider.cs
- SqlDataSourceSelectingEventArgs.cs
- HttpDebugHandler.cs
- Publisher.cs
- ControlValuePropertyAttribute.cs
- UiaCoreTypesApi.cs
- DataGridViewCellStyleConverter.cs
- EntityDesignerBuildProvider.cs
- ResourcesBuildProvider.cs
- XmlTextAttribute.cs
- AssociationType.cs
- WebPartEventArgs.cs
- SqlTypesSchemaImporter.cs
- ProxyWebPartConnectionCollection.cs
- Label.cs
- FileDialog_Vista_Interop.cs
- HtmlSelect.cs
- ColorConvertedBitmap.cs
- ContextBase.cs
- SystemIPGlobalProperties.cs
- ConsoleKeyInfo.cs
- CodePageEncoding.cs
- BaseAddressPrefixFilterElement.cs
- WebEvents.cs
- FindProgressChangedEventArgs.cs
- TokenBasedSetEnumerator.cs
- DataGridViewCellCancelEventArgs.cs
- FormViewInsertedEventArgs.cs
- DispatcherFrame.cs
- IdnElement.cs
- Parser.cs
- DataGridViewComboBoxColumn.cs
- UIElement.cs
- Vertex.cs
- VirtualPath.cs
- VarRemapper.cs
- COM2FontConverter.cs
- PrincipalPermission.cs
- TreeViewHitTestInfo.cs
- XmlConvert.cs
- ZipIOCentralDirectoryFileHeader.cs
- XmlUrlResolver.cs
- RuntimeConfigLKG.cs
- XmlCharCheckingReader.cs
- MoveSizeWinEventHandler.cs
- ValidationErrorInfo.cs
- SimpleHandlerFactory.cs
- ConfigXmlText.cs
- XamlBuildTaskServices.cs
- GestureRecognizer.cs
- iisPickupDirectory.cs
- XMLUtil.cs
- JournalEntryListConverter.cs
- DataProviderNameConverter.cs
- PriorityQueue.cs
- DataBindingExpressionBuilder.cs
- SoapIgnoreAttribute.cs
- FixedSOMPageConstructor.cs
- NamedPipeActivation.cs
- RadioButtonFlatAdapter.cs
- RTLAwareMessageBox.cs
- DbDeleteCommandTree.cs
- VirtualPathProvider.cs