Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Core / CSharp / MS / Internal / AppModel / SiteOfOriginContainer.cs / 1 / SiteOfOriginContainer.cs
//------------------------------------------------------------------------------ // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // Description: // SiteOfOriginContainer is an implementation of the abstract Package class. // It contains nontrivial overrides for GetPartCore and Exists. // Many of the methods on Package are not applicable to loading application // resources, so the SiteOfOriginContainer implementations of these methods throw // the NotSupportedException. // // History: // 06/16/2005: Erichar - Initial creation. //----------------------------------------------------------------------------- using System; using System.IO.Packaging; using System.IO; using System.Collections.Generic; using System.Windows.Resources; using System.Resources; using System.Reflection; using System.Globalization; using System.Windows; using System.Windows.Navigation; using System.Deployment.Application; using System.Security; using System.Security.Permissions; using MS.Internal.PresentationCore; namespace MS.Internal.AppModel { ////// SiteOfOriginContainer is an implementation of the abstract Package class. /// It contains nontrivial overrides for GetPartCore and Exists. /// Many of the methods on Package are not applicable to loading files /// so the SiteOfOriginContainer implementations of these methods throw /// the NotSupportedException. /// internal class SiteOfOriginContainer : System.IO.Packaging.Package { //----------------------------------------------------- // // Static Methods // //----------------------------------------------------- #region Static Methods internal static Uri SiteOfOrigin { [FriendAccessAllowed] get { Uri siteOfOrigin = SiteOfOriginForBrowserApplications; if (siteOfOrigin == null) { // Calling FixFileUri because BaseDirectory will be a c:\\ style path siteOfOrigin = BaseUriHelper.FixFileUri(new Uri(System.AppDomain.CurrentDomain.BaseDirectory)); } #if DEBUG if (_traceSwitch.Enabled) System.Diagnostics.Trace.TraceInformation( DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " + System.Threading.Thread.CurrentThread.ManagedThreadId + ": SiteOfOriginContainer: returning site of origin " + siteOfOrigin); #endif return siteOfOrigin; } } // we separated this from the rest of the code because this code is used for media permission // tests in partial trust but we want to do this without hitting the code path for regular exe's // as in the code above. This will get hit for click once apps, xbaps, xaml and xps internal static Uri SiteOfOriginForBrowserApplications { [FriendAccessAllowed] get { Uri siteOfOrigin = null; if (_debugSecurityZoneURL.Value != null) { siteOfOrigin = _debugSecurityZoneURL.Value; } else if (_browserSource.Value != null) { siteOfOrigin = _browserSource.Value; } else if (ApplicationDeployment.IsNetworkDeployed) { siteOfOrigin = GetDeploymentUri(); } return siteOfOrigin; } } ////// Critical - Whatever is set here will be treated as site of origin. /// internal static Uri BrowserSource { get { return _browserSource.Value; } [SecurityCritical, FriendAccessAllowed] set { _browserSource.Value = value; } } // This is set when -debugsecurityzoneurl parameter is used. ////// Critical - Whatever is set here will be treated as site of origin. /// internal static Uri DebugSecurityZoneURL { get { return _debugSecurityZoneURL.Value; } [SecurityCritical, FriendAccessAllowed] set { _debugSecurityZoneURL.Value = value; } } #endregion //------------------------------------------------------ // // Public Constructors // //----------------------------------------------------- #region Public Constructors ////// Default Constructor /// internal SiteOfOriginContainer() : base(FileAccess.Read) { } #endregion //------------------------------------------------------ // // Public Properties // //------------------------------------------------------ // None //----------------------------------------------------- // // Public Methods // //------------------------------------------------------ #region Public Methods ////// public override bool PartExists(Uri uri) { return true; } #endregion //----------------------------------------------------- // // Public Events // //----------------------------------------------------- // None //----------------------------------------------------- // // Internal Constructors // //------------------------------------------------------ // None //----------------------------------------------------- // // Internal Properties // //------------------------------------------------------ #region Internal Properties /// /// Critical: sets BooleanSwitch.Enabled which LinkDemands /// TreatAsSafe: ok to enable tracing /// internal static bool TraceSwitchEnabled { get { return _traceSwitch.Enabled; } [SecurityCritical, SecurityTreatAsSafe] set { _traceSwitch.Enabled = value; } } internal static System.Diagnostics.BooleanSwitch _traceSwitch = new System.Diagnostics.BooleanSwitch("SiteOfOrigin", "SiteOfOriginContainer and SiteOfOriginPart trace messages"); #endregion //------------------------------------------------------ // // Internal Methods // //----------------------------------------------------- // None //------------------------------------------------------ // // Internal Events // //----------------------------------------------------- // None //----------------------------------------------------- // // Protected Constructors // //----------------------------------------------------- // None //------------------------------------------------------ // // Protected Methods // //----------------------------------------------------- #region Protected Methods ////// This method creates a SiteOfOriginPart which will create a WebRequest /// to access files at the site of origin. /// /// ///protected override PackagePart GetPartCore(Uri uri) { #if DEBUG if (_traceSwitch.Enabled) System.Diagnostics.Trace.TraceInformation( DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " + System.Threading.Thread.CurrentThread.ManagedThreadId + ": SiteOfOriginContainer: Creating SiteOfOriginPart for Uri " + uri); #endif return new SiteOfOriginPart(this, uri); } #endregion //------------------------------------------------------ // // Private Methods // //------------------------------------------------------ #region Private Methods /// /// Critical - Performs an elevation to access ApplicationIdentity /// TreatAsSafe - Returns the Uri the .application/.xapp was launched from if the application was network deployed. /// This will not work for a standalone application due to the invariant assert. This information is /// not considered critical because an application is allowed to know where it was deployed from just /// not the local path it is running from. /// This information is also typically available from ApplicationDeployment.CurrentDeployment.ActivationUri /// or ApplicationDeployment.CurrentDeployment.UpdateLocation but those properties are null for applications /// that do not take Uri parameters and do not receive updates from the web. Neither of those properties /// requires an assert to access and are available in partial trust. We are not using them because the need /// for a site of origin is not dependent on update or uri parameters. /// [SecurityCritical, SecurityTreatAsSafe] private static Uri GetDeploymentUri() { Invariant.Assert(ApplicationDeployment.IsNetworkDeployed); AppDomain currentDomain = System.AppDomain.CurrentDomain; ApplicationIdentity ident = null; string codeBase = null; SecurityPermission p1 = new SecurityPermission(SecurityPermissionFlag.ControlDomainPolicy); p1.Assert(); try { ident = currentDomain.ApplicationIdentity; // ControlDomainPolicy } finally { CodeAccessPermission.RevertAssert(); } SecurityPermission p2 = new SecurityPermission(SecurityPermissionFlag.UnmanagedCode); p2.Assert(); try { codeBase = ident.CodeBase; // Unmanaged Code permission } finally { CodeAccessPermission.RevertAssert(); } return new Uri(new Uri(codeBase), new Uri(".", UriKind.Relative)); } #endregion //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ #region Private Members private static SecurityCriticalDataForSet_browserSource; private static SecurityCriticalDataForSet _debugSecurityZoneURL; #endregion Private Members //----------------------------------------------------- // // Uninteresting (but required) overrides // //----------------------------------------------------- #region Uninteresting (but required) overrides protected override PackagePart CreatePartCore(Uri uri, string contentType, CompressionOption compressionOption) { return null; } protected override void DeletePartCore(Uri uri) { throw new NotSupportedException(); } protected override PackagePart[] GetPartsCore() { throw new NotSupportedException(); } protected override void FlushCore() { throw new NotSupportedException(); } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //------------------------------------------------------------------------------ // // // Copyright (C) Microsoft Corporation. All rights reserved. // // // Description: // SiteOfOriginContainer is an implementation of the abstract Package class. // It contains nontrivial overrides for GetPartCore and Exists. // Many of the methods on Package are not applicable to loading application // resources, so the SiteOfOriginContainer implementations of these methods throw // the NotSupportedException. // // History: // 06/16/2005: Erichar - Initial creation. //----------------------------------------------------------------------------- using System; using System.IO.Packaging; using System.IO; using System.Collections.Generic; using System.Windows.Resources; using System.Resources; using System.Reflection; using System.Globalization; using System.Windows; using System.Windows.Navigation; using System.Deployment.Application; using System.Security; using System.Security.Permissions; using MS.Internal.PresentationCore; namespace MS.Internal.AppModel { ////// SiteOfOriginContainer is an implementation of the abstract Package class. /// It contains nontrivial overrides for GetPartCore and Exists. /// Many of the methods on Package are not applicable to loading files /// so the SiteOfOriginContainer implementations of these methods throw /// the NotSupportedException. /// internal class SiteOfOriginContainer : System.IO.Packaging.Package { //----------------------------------------------------- // // Static Methods // //----------------------------------------------------- #region Static Methods internal static Uri SiteOfOrigin { [FriendAccessAllowed] get { Uri siteOfOrigin = SiteOfOriginForBrowserApplications; if (siteOfOrigin == null) { // Calling FixFileUri because BaseDirectory will be a c:\\ style path siteOfOrigin = BaseUriHelper.FixFileUri(new Uri(System.AppDomain.CurrentDomain.BaseDirectory)); } #if DEBUG if (_traceSwitch.Enabled) System.Diagnostics.Trace.TraceInformation( DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " + System.Threading.Thread.CurrentThread.ManagedThreadId + ": SiteOfOriginContainer: returning site of origin " + siteOfOrigin); #endif return siteOfOrigin; } } // we separated this from the rest of the code because this code is used for media permission // tests in partial trust but we want to do this without hitting the code path for regular exe's // as in the code above. This will get hit for click once apps, xbaps, xaml and xps internal static Uri SiteOfOriginForBrowserApplications { [FriendAccessAllowed] get { Uri siteOfOrigin = null; if (_debugSecurityZoneURL.Value != null) { siteOfOrigin = _debugSecurityZoneURL.Value; } else if (_browserSource.Value != null) { siteOfOrigin = _browserSource.Value; } else if (ApplicationDeployment.IsNetworkDeployed) { siteOfOrigin = GetDeploymentUri(); } return siteOfOrigin; } } ////// Critical - Whatever is set here will be treated as site of origin. /// internal static Uri BrowserSource { get { return _browserSource.Value; } [SecurityCritical, FriendAccessAllowed] set { _browserSource.Value = value; } } // This is set when -debugsecurityzoneurl parameter is used. ////// Critical - Whatever is set here will be treated as site of origin. /// internal static Uri DebugSecurityZoneURL { get { return _debugSecurityZoneURL.Value; } [SecurityCritical, FriendAccessAllowed] set { _debugSecurityZoneURL.Value = value; } } #endregion //------------------------------------------------------ // // Public Constructors // //----------------------------------------------------- #region Public Constructors ////// Default Constructor /// internal SiteOfOriginContainer() : base(FileAccess.Read) { } #endregion //------------------------------------------------------ // // Public Properties // //------------------------------------------------------ // None //----------------------------------------------------- // // Public Methods // //------------------------------------------------------ #region Public Methods ////// public override bool PartExists(Uri uri) { return true; } #endregion //----------------------------------------------------- // // Public Events // //----------------------------------------------------- // None //----------------------------------------------------- // // Internal Constructors // //------------------------------------------------------ // None //----------------------------------------------------- // // Internal Properties // //------------------------------------------------------ #region Internal Properties /// /// Critical: sets BooleanSwitch.Enabled which LinkDemands /// TreatAsSafe: ok to enable tracing /// internal static bool TraceSwitchEnabled { get { return _traceSwitch.Enabled; } [SecurityCritical, SecurityTreatAsSafe] set { _traceSwitch.Enabled = value; } } internal static System.Diagnostics.BooleanSwitch _traceSwitch = new System.Diagnostics.BooleanSwitch("SiteOfOrigin", "SiteOfOriginContainer and SiteOfOriginPart trace messages"); #endregion //------------------------------------------------------ // // Internal Methods // //----------------------------------------------------- // None //------------------------------------------------------ // // Internal Events // //----------------------------------------------------- // None //----------------------------------------------------- // // Protected Constructors // //----------------------------------------------------- // None //------------------------------------------------------ // // Protected Methods // //----------------------------------------------------- #region Protected Methods ////// This method creates a SiteOfOriginPart which will create a WebRequest /// to access files at the site of origin. /// /// ///protected override PackagePart GetPartCore(Uri uri) { #if DEBUG if (_traceSwitch.Enabled) System.Diagnostics.Trace.TraceInformation( DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " + System.Threading.Thread.CurrentThread.ManagedThreadId + ": SiteOfOriginContainer: Creating SiteOfOriginPart for Uri " + uri); #endif return new SiteOfOriginPart(this, uri); } #endregion //------------------------------------------------------ // // Private Methods // //------------------------------------------------------ #region Private Methods /// /// Critical - Performs an elevation to access ApplicationIdentity /// TreatAsSafe - Returns the Uri the .application/.xapp was launched from if the application was network deployed. /// This will not work for a standalone application due to the invariant assert. This information is /// not considered critical because an application is allowed to know where it was deployed from just /// not the local path it is running from. /// This information is also typically available from ApplicationDeployment.CurrentDeployment.ActivationUri /// or ApplicationDeployment.CurrentDeployment.UpdateLocation but those properties are null for applications /// that do not take Uri parameters and do not receive updates from the web. Neither of those properties /// requires an assert to access and are available in partial trust. We are not using them because the need /// for a site of origin is not dependent on update or uri parameters. /// [SecurityCritical, SecurityTreatAsSafe] private static Uri GetDeploymentUri() { Invariant.Assert(ApplicationDeployment.IsNetworkDeployed); AppDomain currentDomain = System.AppDomain.CurrentDomain; ApplicationIdentity ident = null; string codeBase = null; SecurityPermission p1 = new SecurityPermission(SecurityPermissionFlag.ControlDomainPolicy); p1.Assert(); try { ident = currentDomain.ApplicationIdentity; // ControlDomainPolicy } finally { CodeAccessPermission.RevertAssert(); } SecurityPermission p2 = new SecurityPermission(SecurityPermissionFlag.UnmanagedCode); p2.Assert(); try { codeBase = ident.CodeBase; // Unmanaged Code permission } finally { CodeAccessPermission.RevertAssert(); } return new Uri(new Uri(codeBase), new Uri(".", UriKind.Relative)); } #endregion //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ #region Private Members private static SecurityCriticalDataForSet_browserSource; private static SecurityCriticalDataForSet _debugSecurityZoneURL; #endregion Private Members //----------------------------------------------------- // // Uninteresting (but required) overrides // //----------------------------------------------------- #region Uninteresting (but required) overrides protected override PackagePart CreatePartCore(Uri uri, string contentType, CompressionOption compressionOption) { return null; } protected override void DeletePartCore(Uri uri) { throw new NotSupportedException(); } protected override PackagePart[] GetPartsCore() { throw new NotSupportedException(); } protected override void FlushCore() { throw new NotSupportedException(); } #endregion } } // 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
- DataGridViewEditingControlShowingEventArgs.cs
- FormattedTextSymbols.cs
- SchemaConstraints.cs
- XmlCharacterData.cs
- EditorAttribute.cs
- RandomNumberGenerator.cs
- TreeIterator.cs
- Transform.cs
- DataGridViewCellEventArgs.cs
- EntityContainerRelationshipSet.cs
- ControlType.cs
- PropertyNames.cs
- FilteredAttributeCollection.cs
- MsmqUri.cs
- SingleObjectCollection.cs
- followingquery.cs
- ReferencedAssembly.cs
- OleDbConnectionFactory.cs
- LinqDataSourceValidationException.cs
- MsmqInputChannelListenerBase.cs
- InputMethodStateChangeEventArgs.cs
- OleDbFactory.cs
- LongCountAggregationOperator.cs
- PeerApplication.cs
- ValidatorCollection.cs
- ItemCollection.cs
- CompModSwitches.cs
- SiteMapNode.cs
- FormsAuthenticationTicket.cs
- PathSegment.cs
- ImageMap.cs
- CodeSnippetCompileUnit.cs
- ZoneLinkButton.cs
- dataobject.cs
- VectorAnimation.cs
- UpdateCompiler.cs
- ValidatedMobileControlConverter.cs
- ArraySegment.cs
- CqlLexer.cs
- RandomNumberGenerator.cs
- ConfigXmlElement.cs
- ValidatorCollection.cs
- GPStream.cs
- ButtonBaseAdapter.cs
- CaseInsensitiveOrdinalStringComparer.cs
- SemanticValue.cs
- DigestTraceRecordHelper.cs
- DataGridParentRows.cs
- FontStyle.cs
- ValidationErrorCollection.cs
- Crc32.cs
- PrimitiveCodeDomSerializer.cs
- DataViewManagerListItemTypeDescriptor.cs
- Exceptions.cs
- Adorner.cs
- XamlStackWriter.cs
- ActivityDesignerHighlighter.cs
- DataServiceContext.cs
- TextRenderer.cs
- EncryptedPackageFilter.cs
- ItemAutomationPeer.cs
- ObjectDataSourceFilteringEventArgs.cs
- WorkflowApplicationAbortedEventArgs.cs
- NativeMethods.cs
- TypefaceCollection.cs
- ActionFrame.cs
- SerializerDescriptor.cs
- DomainUpDown.cs
- UnsafeNativeMethods.cs
- PenCursorManager.cs
- SamlAssertionDirectKeyIdentifierClause.cs
- RMEnrollmentPage3.cs
- XPathBinder.cs
- PropertyEntry.cs
- SingleSelectRootGridEntry.cs
- AssociationTypeEmitter.cs
- XmlDocumentSerializer.cs
- EnumerableCollectionView.cs
- SQLResource.cs
- OrderPreservingMergeHelper.cs
- BindUriHelper.cs
- SqlBuffer.cs
- tibetanshape.cs
- EdmToObjectNamespaceMap.cs
- SystemIPv4InterfaceProperties.cs
- UInt16.cs
- DataFormats.cs
- TypeListConverter.cs
- CompilationPass2TaskInternal.cs
- LogicalExpr.cs
- AttributedMetaModel.cs
- oledbmetadatacolumnnames.cs
- DataListDesigner.cs
- DeviceContext2.cs
- ScanQueryOperator.cs
- SystemEvents.cs
- SqlDataSourceEnumerator.cs
- OneOfElement.cs
- KnownTypesHelper.cs
- PixelFormatConverter.cs