Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / WinForms / Managed / System / WinForms / WinFormsSecurity.cs / 1305376 / WinFormsSecurity.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
/*
*/
namespace System.Windows.Forms {
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System;
using System.IO;
using System.Security.Permissions;
using System.Security;
using System.Drawing.Printing;
using System.Runtime.Versioning;
internal static class IntSecurity {
public static readonly TraceSwitch SecurityDemand = new TraceSwitch("SecurityDemand", "Trace when security demands occur.");
#if DEBUG
public static readonly BooleanSwitch MapSafeTopLevelToSafeSub = new BooleanSwitch("MapSafeTopLevelToSafeSub", "Maps the SafeTopLevelWindow UI permission to SafeSubWindow permission. Must restart to take effect.");
#endif
private static CodeAccessPermission adjustCursorClip;
private static CodeAccessPermission affectMachineState;
private static CodeAccessPermission affectThreadBehavior;
private static CodeAccessPermission allPrinting;
private static PermissionSet allPrintingAndUnmanagedCode; // Can't assert twice in the same method
private static CodeAccessPermission allWindows;
private static CodeAccessPermission clipboardRead;
private static CodeAccessPermission clipboardOwn;
private static PermissionSet clipboardWrite; // Can't assert twice in the same method
private static CodeAccessPermission changeWindowRegionForTopLevel;
private static CodeAccessPermission controlFromHandleOrLocation;
private static CodeAccessPermission createAnyWindow;
private static CodeAccessPermission createGraphicsForControl;
private static CodeAccessPermission defaultPrinting;
private static CodeAccessPermission fileDialogCustomization;
private static CodeAccessPermission fileDialogOpenFile;
private static CodeAccessPermission fileDialogSaveFile;
private static CodeAccessPermission getCapture;
private static CodeAccessPermission getParent;
private static CodeAccessPermission manipulateWndProcAndHandles;
private static CodeAccessPermission modifyCursor;
private static CodeAccessPermission modifyFocus;
private static CodeAccessPermission objectFromWin32Handle;
private static CodeAccessPermission safePrinting;
private static CodeAccessPermission safeSubWindows;
private static CodeAccessPermission safeTopLevelWindows;
private static CodeAccessPermission sendMessages;
private static CodeAccessPermission sensitiveSystemInformation;
private static CodeAccessPermission transparentWindows;
private static CodeAccessPermission topLevelWindow;
private static CodeAccessPermission unmanagedCode;
private static CodeAccessPermission unrestrictedWindows;
private static CodeAccessPermission windowAdornmentModification;
/* Unused permissions
private static CodeAccessPermission win32HandleManipulation;
private static CodeAccessPermission minimizeWindowProgrammatically;
private static CodeAccessPermission restrictedWebBrowserPermission;
private static CodeAccessPermission noPrinting;
private static CodeAccessPermission topMostWindow;
private static CodeAccessPermission unrestrictedEnvironment;
private static CodeAccessPermission autoComplete;
private static CodeAccessPermission defaultWebBrowserPermission;
private static CodeAccessPermission screenDC;
*/
//
// Property accessors for permissions. Don't allocate permissions up front -- always
// demand create them. A great many codepaths never need all these permissions so it is wasteful to
// create them.
//
public static CodeAccessPermission AdjustCursorClip {
get {
if (adjustCursorClip == null) {
adjustCursorClip = AllWindows;
}
return adjustCursorClip;
}
}
public static CodeAccessPermission AdjustCursorPosition {
get {
return AllWindows;
}
}
public static CodeAccessPermission AffectMachineState {
get {
if (affectMachineState == null) {
affectMachineState = UnmanagedCode;
}
return affectMachineState;
}
}
public static CodeAccessPermission AffectThreadBehavior {
get {
if (affectThreadBehavior == null) {
affectThreadBehavior = UnmanagedCode;
}
return affectThreadBehavior;
}
}
public static CodeAccessPermission AllPrinting {
get {
if (allPrinting == null) {
allPrinting = new PrintingPermission(PrintingPermissionLevel.AllPrinting);
}
return allPrinting;
}
}
public static PermissionSet AllPrintingAndUnmanagedCode { // Can't assert twice in the same method. See ASURT 52788.
get {
if (allPrintingAndUnmanagedCode == null) {
PermissionSet temp = new PermissionSet(PermissionState.None);
temp.SetPermission(IntSecurity.UnmanagedCode);
temp.SetPermission(IntSecurity.AllPrinting);
allPrintingAndUnmanagedCode = temp;
}
return allPrintingAndUnmanagedCode;
}
}
public static CodeAccessPermission AllWindows {
get {
if (allWindows == null) {
allWindows = new UIPermission(UIPermissionWindow.AllWindows);
}
return allWindows;
}
}
public static CodeAccessPermission ClipboardRead {
get {
if (clipboardRead == null) {
clipboardRead = new UIPermission(UIPermissionClipboard.AllClipboard);
}
return clipboardRead;
}
}
public static CodeAccessPermission ClipboardOwn {
get {
if (clipboardOwn == null) {
clipboardOwn = new UIPermission(UIPermissionClipboard.OwnClipboard);
}
return clipboardOwn;
}
}
public static PermissionSet ClipboardWrite { // Can't assert OwnClipboard & UnmanagedCode in the same context, need permission set.
get {
if (clipboardWrite == null) {
clipboardWrite = new PermissionSet(PermissionState.None);
clipboardWrite.SetPermission(IntSecurity.UnmanagedCode);
clipboardWrite.SetPermission(IntSecurity.ClipboardOwn);
}
return clipboardWrite;
}
}
public static CodeAccessPermission ChangeWindowRegionForTopLevel {
get {
if (changeWindowRegionForTopLevel == null) {
changeWindowRegionForTopLevel = AllWindows;
}
return changeWindowRegionForTopLevel;
}
}
public static CodeAccessPermission ControlFromHandleOrLocation {
get {
if (controlFromHandleOrLocation == null) {
controlFromHandleOrLocation = AllWindows;
}
return controlFromHandleOrLocation;
}
}
public static CodeAccessPermission CreateAnyWindow {
get {
if (createAnyWindow == null) {
createAnyWindow = SafeSubWindows;
}
return createAnyWindow;
}
}
public static CodeAccessPermission CreateGraphicsForControl {
get {
if (createGraphicsForControl == null) {
createGraphicsForControl = SafeSubWindows;
}
return createGraphicsForControl;
}
}
public static CodeAccessPermission DefaultPrinting {
get {
if (defaultPrinting == null) {
defaultPrinting = new PrintingPermission(PrintingPermissionLevel.DefaultPrinting);
}
return defaultPrinting;
}
}
public static CodeAccessPermission FileDialogCustomization {
get {
if (fileDialogCustomization == null) {
fileDialogCustomization = new FileIOPermission(PermissionState.Unrestricted);
}
return fileDialogCustomization;
}
}
public static CodeAccessPermission FileDialogOpenFile {
get {
if (fileDialogOpenFile == null) {
fileDialogOpenFile = new FileDialogPermission(FileDialogPermissionAccess.Open);
}
return fileDialogOpenFile;
}
}
public static CodeAccessPermission FileDialogSaveFile {
get {
if (fileDialogSaveFile == null) {
fileDialogSaveFile = new FileDialogPermission(FileDialogPermissionAccess.Save);
}
return fileDialogSaveFile;
}
}
/* Unused
public static CodeAccessPermission RestrictedWebBrowserPermission {
get {
if (restrictedWebBrowserPermission == null) {
restrictedWebBrowserPermission = new WebBrowserPermission(WebBrowserPermissionLevel.Restricted);
}
return restrictedWebBrowserPermission;
}
}
public static CodeAccessPermission DefaultWebBrowserPermission {
get {
if (defaultWebBrowserPermission == null) {
defaultWebBrowserPermission = new WebBrowserPermission(WebBrowserPermissionLevel.Default);
}
return defaultWebBrowserPermission;
}
}
*/
public static CodeAccessPermission GetCapture {
get {
if (getCapture == null) {
getCapture = AllWindows;
}
return getCapture;
}
}
public static CodeAccessPermission GetParent {
get {
if (getParent == null) {
getParent = AllWindows;
}
return getParent;
}
}
public static CodeAccessPermission ManipulateWndProcAndHandles {
get {
if (manipulateWndProcAndHandles == null) {
manipulateWndProcAndHandles = AllWindows;
}
return manipulateWndProcAndHandles;
}
}
/* Unused
public static CodeAccessPermission MinimizeWindowProgrammatically {
get {
if (minimizeWindowProgrammatically == null) {
minimizeWindowProgrammatically = AllWindows;
}
return minimizeWindowProgrammatically;
}
}
*/
public static CodeAccessPermission ModifyCursor {
get {
if (modifyCursor == null) {
modifyCursor = SafeSubWindows;
}
return modifyCursor;
}
}
public static CodeAccessPermission ModifyFocus {
get {
if (modifyFocus == null) {
modifyFocus = AllWindows;
}
return modifyFocus;
}
}
/* Unused
public static CodeAccessPermission NoPrinting {
get {
if (noPrinting == null) {
noPrinting = new PrintingPermission(PrintingPermissionLevel.NoPrinting);
}
return noPrinting;
}
}
*/
public static CodeAccessPermission ObjectFromWin32Handle {
get {
if (objectFromWin32Handle == null) {
objectFromWin32Handle = UnmanagedCode;
}
return objectFromWin32Handle;
}
}
public static CodeAccessPermission SafePrinting {
get {
if (safePrinting == null) {
safePrinting = new PrintingPermission(PrintingPermissionLevel.SafePrinting);
}
return safePrinting;
}
}
public static CodeAccessPermission SafeSubWindows {
get {
if (safeSubWindows == null) {
safeSubWindows = new UIPermission(UIPermissionWindow.SafeSubWindows);
}
return safeSubWindows;
}
}
public static CodeAccessPermission SafeTopLevelWindows {
get {
if (safeTopLevelWindows == null) {
safeTopLevelWindows = new UIPermission(UIPermissionWindow.SafeTopLevelWindows);
}
return safeTopLevelWindows;
}
}
public static CodeAccessPermission SendMessages {
get {
if (sendMessages == null) {
sendMessages = UnmanagedCode;
}
return sendMessages;
}
}
public static CodeAccessPermission SensitiveSystemInformation {
get {
if (sensitiveSystemInformation == null) {
sensitiveSystemInformation = new EnvironmentPermission(PermissionState.Unrestricted);
}
return sensitiveSystemInformation;
}
}
/* Unused
public static CodeAccessPermission ScreenDC {
get {
if (screenDC == null) {
screenDC = AllWindows;
}
return screenDC;
}
}
*/
public static CodeAccessPermission TransparentWindows {
get {
if (transparentWindows == null) {
transparentWindows = AllWindows;
}
return transparentWindows;
}
}
public static CodeAccessPermission TopLevelWindow {
get {
if (topLevelWindow == null) {
topLevelWindow = SafeTopLevelWindows;
}
return topLevelWindow;
}
}
/* Unused
public static CodeAccessPermission TopMostWindow {
get {
if (topMostWindow == null) {
topMostWindow = AllWindows;
}
return topMostWindow;
}
}
*/
public static CodeAccessPermission UnmanagedCode {
get {
if (unmanagedCode == null) {
unmanagedCode = new SecurityPermission(SecurityPermissionFlag.UnmanagedCode);
}
return unmanagedCode;
}
}
/*
public static CodeAccessPermission UnrestrictedEnvironment {
get {
if (unrestrictedEnvironment == null) {
unrestrictedEnvironment = new EnvironmentPermission(PermissionState.Unrestricted);
}
return unrestrictedEnvironment;
}
}
*/
public static CodeAccessPermission UnrestrictedWindows {
get {
if (unrestrictedWindows == null) {
unrestrictedWindows = AllWindows;
}
return unrestrictedWindows;
}
}
/* FXCop avoid unused code
public static CodeAccessPermission Win32HandleManipulation {
get {
if (win32HandleManipulation == null) {
win32HandleManipulation = UnmanagedCode;
}
return win32HandleManipulation;
}
}
*/
public static CodeAccessPermission WindowAdornmentModification {
get {
if (windowAdornmentModification == null) {
windowAdornmentModification = AllWindows;
}
return windowAdornmentModification;
}
}
/* unused
public static CodeAccessPermission AutoComplete {
get {
if (autoComplete == null) {
autoComplete = UnmanagedCode;
}
return autoComplete;
}
}
*/
[ResourceExposure(ResourceScope.Machine)]
[ResourceConsumption(ResourceScope.Machine)]
internal static string UnsafeGetFullPath(string fileName) {
string full = fileName;
FileIOPermission fiop = new FileIOPermission( PermissionState.None );
fiop.AllFiles = FileIOPermissionAccess.PathDiscovery;
fiop.Assert();
try {
full = Path.GetFullPath(fileName);
}
finally {
CodeAccessPermission.RevertAssert();
}
return full;
}
/// SECREVIEW: ReviewImperativeSecurity
/// vulnerability to watch out for: A method uses imperative security and might be constructing the permission using state information or return values that can change while the demand is active.
/// reason for exclude: fileName is a local variable and not subject to race conditions.
[SuppressMessage("Microsoft.Security", "CA2103:ReviewImperativeSecurity")]
internal static void DemandFileIO(FileIOPermissionAccess access, string fileName) {
new FileIOPermission(access, UnsafeGetFullPath(fileName)).Demand();
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
/*
*/
namespace System.Windows.Forms {
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System;
using System.IO;
using System.Security.Permissions;
using System.Security;
using System.Drawing.Printing;
using System.Runtime.Versioning;
internal static class IntSecurity {
public static readonly TraceSwitch SecurityDemand = new TraceSwitch("SecurityDemand", "Trace when security demands occur.");
#if DEBUG
public static readonly BooleanSwitch MapSafeTopLevelToSafeSub = new BooleanSwitch("MapSafeTopLevelToSafeSub", "Maps the SafeTopLevelWindow UI permission to SafeSubWindow permission. Must restart to take effect.");
#endif
private static CodeAccessPermission adjustCursorClip;
private static CodeAccessPermission affectMachineState;
private static CodeAccessPermission affectThreadBehavior;
private static CodeAccessPermission allPrinting;
private static PermissionSet allPrintingAndUnmanagedCode; // Can't assert twice in the same method
private static CodeAccessPermission allWindows;
private static CodeAccessPermission clipboardRead;
private static CodeAccessPermission clipboardOwn;
private static PermissionSet clipboardWrite; // Can't assert twice in the same method
private static CodeAccessPermission changeWindowRegionForTopLevel;
private static CodeAccessPermission controlFromHandleOrLocation;
private static CodeAccessPermission createAnyWindow;
private static CodeAccessPermission createGraphicsForControl;
private static CodeAccessPermission defaultPrinting;
private static CodeAccessPermission fileDialogCustomization;
private static CodeAccessPermission fileDialogOpenFile;
private static CodeAccessPermission fileDialogSaveFile;
private static CodeAccessPermission getCapture;
private static CodeAccessPermission getParent;
private static CodeAccessPermission manipulateWndProcAndHandles;
private static CodeAccessPermission modifyCursor;
private static CodeAccessPermission modifyFocus;
private static CodeAccessPermission objectFromWin32Handle;
private static CodeAccessPermission safePrinting;
private static CodeAccessPermission safeSubWindows;
private static CodeAccessPermission safeTopLevelWindows;
private static CodeAccessPermission sendMessages;
private static CodeAccessPermission sensitiveSystemInformation;
private static CodeAccessPermission transparentWindows;
private static CodeAccessPermission topLevelWindow;
private static CodeAccessPermission unmanagedCode;
private static CodeAccessPermission unrestrictedWindows;
private static CodeAccessPermission windowAdornmentModification;
/* Unused permissions
private static CodeAccessPermission win32HandleManipulation;
private static CodeAccessPermission minimizeWindowProgrammatically;
private static CodeAccessPermission restrictedWebBrowserPermission;
private static CodeAccessPermission noPrinting;
private static CodeAccessPermission topMostWindow;
private static CodeAccessPermission unrestrictedEnvironment;
private static CodeAccessPermission autoComplete;
private static CodeAccessPermission defaultWebBrowserPermission;
private static CodeAccessPermission screenDC;
*/
//
// Property accessors for permissions. Don't allocate permissions up front -- always
// demand create them. A great many codepaths never need all these permissions so it is wasteful to
// create them.
//
public static CodeAccessPermission AdjustCursorClip {
get {
if (adjustCursorClip == null) {
adjustCursorClip = AllWindows;
}
return adjustCursorClip;
}
}
public static CodeAccessPermission AdjustCursorPosition {
get {
return AllWindows;
}
}
public static CodeAccessPermission AffectMachineState {
get {
if (affectMachineState == null) {
affectMachineState = UnmanagedCode;
}
return affectMachineState;
}
}
public static CodeAccessPermission AffectThreadBehavior {
get {
if (affectThreadBehavior == null) {
affectThreadBehavior = UnmanagedCode;
}
return affectThreadBehavior;
}
}
public static CodeAccessPermission AllPrinting {
get {
if (allPrinting == null) {
allPrinting = new PrintingPermission(PrintingPermissionLevel.AllPrinting);
}
return allPrinting;
}
}
public static PermissionSet AllPrintingAndUnmanagedCode { // Can't assert twice in the same method. See ASURT 52788.
get {
if (allPrintingAndUnmanagedCode == null) {
PermissionSet temp = new PermissionSet(PermissionState.None);
temp.SetPermission(IntSecurity.UnmanagedCode);
temp.SetPermission(IntSecurity.AllPrinting);
allPrintingAndUnmanagedCode = temp;
}
return allPrintingAndUnmanagedCode;
}
}
public static CodeAccessPermission AllWindows {
get {
if (allWindows == null) {
allWindows = new UIPermission(UIPermissionWindow.AllWindows);
}
return allWindows;
}
}
public static CodeAccessPermission ClipboardRead {
get {
if (clipboardRead == null) {
clipboardRead = new UIPermission(UIPermissionClipboard.AllClipboard);
}
return clipboardRead;
}
}
public static CodeAccessPermission ClipboardOwn {
get {
if (clipboardOwn == null) {
clipboardOwn = new UIPermission(UIPermissionClipboard.OwnClipboard);
}
return clipboardOwn;
}
}
public static PermissionSet ClipboardWrite { // Can't assert OwnClipboard & UnmanagedCode in the same context, need permission set.
get {
if (clipboardWrite == null) {
clipboardWrite = new PermissionSet(PermissionState.None);
clipboardWrite.SetPermission(IntSecurity.UnmanagedCode);
clipboardWrite.SetPermission(IntSecurity.ClipboardOwn);
}
return clipboardWrite;
}
}
public static CodeAccessPermission ChangeWindowRegionForTopLevel {
get {
if (changeWindowRegionForTopLevel == null) {
changeWindowRegionForTopLevel = AllWindows;
}
return changeWindowRegionForTopLevel;
}
}
public static CodeAccessPermission ControlFromHandleOrLocation {
get {
if (controlFromHandleOrLocation == null) {
controlFromHandleOrLocation = AllWindows;
}
return controlFromHandleOrLocation;
}
}
public static CodeAccessPermission CreateAnyWindow {
get {
if (createAnyWindow == null) {
createAnyWindow = SafeSubWindows;
}
return createAnyWindow;
}
}
public static CodeAccessPermission CreateGraphicsForControl {
get {
if (createGraphicsForControl == null) {
createGraphicsForControl = SafeSubWindows;
}
return createGraphicsForControl;
}
}
public static CodeAccessPermission DefaultPrinting {
get {
if (defaultPrinting == null) {
defaultPrinting = new PrintingPermission(PrintingPermissionLevel.DefaultPrinting);
}
return defaultPrinting;
}
}
public static CodeAccessPermission FileDialogCustomization {
get {
if (fileDialogCustomization == null) {
fileDialogCustomization = new FileIOPermission(PermissionState.Unrestricted);
}
return fileDialogCustomization;
}
}
public static CodeAccessPermission FileDialogOpenFile {
get {
if (fileDialogOpenFile == null) {
fileDialogOpenFile = new FileDialogPermission(FileDialogPermissionAccess.Open);
}
return fileDialogOpenFile;
}
}
public static CodeAccessPermission FileDialogSaveFile {
get {
if (fileDialogSaveFile == null) {
fileDialogSaveFile = new FileDialogPermission(FileDialogPermissionAccess.Save);
}
return fileDialogSaveFile;
}
}
/* Unused
public static CodeAccessPermission RestrictedWebBrowserPermission {
get {
if (restrictedWebBrowserPermission == null) {
restrictedWebBrowserPermission = new WebBrowserPermission(WebBrowserPermissionLevel.Restricted);
}
return restrictedWebBrowserPermission;
}
}
public static CodeAccessPermission DefaultWebBrowserPermission {
get {
if (defaultWebBrowserPermission == null) {
defaultWebBrowserPermission = new WebBrowserPermission(WebBrowserPermissionLevel.Default);
}
return defaultWebBrowserPermission;
}
}
*/
public static CodeAccessPermission GetCapture {
get {
if (getCapture == null) {
getCapture = AllWindows;
}
return getCapture;
}
}
public static CodeAccessPermission GetParent {
get {
if (getParent == null) {
getParent = AllWindows;
}
return getParent;
}
}
public static CodeAccessPermission ManipulateWndProcAndHandles {
get {
if (manipulateWndProcAndHandles == null) {
manipulateWndProcAndHandles = AllWindows;
}
return manipulateWndProcAndHandles;
}
}
/* Unused
public static CodeAccessPermission MinimizeWindowProgrammatically {
get {
if (minimizeWindowProgrammatically == null) {
minimizeWindowProgrammatically = AllWindows;
}
return minimizeWindowProgrammatically;
}
}
*/
public static CodeAccessPermission ModifyCursor {
get {
if (modifyCursor == null) {
modifyCursor = SafeSubWindows;
}
return modifyCursor;
}
}
public static CodeAccessPermission ModifyFocus {
get {
if (modifyFocus == null) {
modifyFocus = AllWindows;
}
return modifyFocus;
}
}
/* Unused
public static CodeAccessPermission NoPrinting {
get {
if (noPrinting == null) {
noPrinting = new PrintingPermission(PrintingPermissionLevel.NoPrinting);
}
return noPrinting;
}
}
*/
public static CodeAccessPermission ObjectFromWin32Handle {
get {
if (objectFromWin32Handle == null) {
objectFromWin32Handle = UnmanagedCode;
}
return objectFromWin32Handle;
}
}
public static CodeAccessPermission SafePrinting {
get {
if (safePrinting == null) {
safePrinting = new PrintingPermission(PrintingPermissionLevel.SafePrinting);
}
return safePrinting;
}
}
public static CodeAccessPermission SafeSubWindows {
get {
if (safeSubWindows == null) {
safeSubWindows = new UIPermission(UIPermissionWindow.SafeSubWindows);
}
return safeSubWindows;
}
}
public static CodeAccessPermission SafeTopLevelWindows {
get {
if (safeTopLevelWindows == null) {
safeTopLevelWindows = new UIPermission(UIPermissionWindow.SafeTopLevelWindows);
}
return safeTopLevelWindows;
}
}
public static CodeAccessPermission SendMessages {
get {
if (sendMessages == null) {
sendMessages = UnmanagedCode;
}
return sendMessages;
}
}
public static CodeAccessPermission SensitiveSystemInformation {
get {
if (sensitiveSystemInformation == null) {
sensitiveSystemInformation = new EnvironmentPermission(PermissionState.Unrestricted);
}
return sensitiveSystemInformation;
}
}
/* Unused
public static CodeAccessPermission ScreenDC {
get {
if (screenDC == null) {
screenDC = AllWindows;
}
return screenDC;
}
}
*/
public static CodeAccessPermission TransparentWindows {
get {
if (transparentWindows == null) {
transparentWindows = AllWindows;
}
return transparentWindows;
}
}
public static CodeAccessPermission TopLevelWindow {
get {
if (topLevelWindow == null) {
topLevelWindow = SafeTopLevelWindows;
}
return topLevelWindow;
}
}
/* Unused
public static CodeAccessPermission TopMostWindow {
get {
if (topMostWindow == null) {
topMostWindow = AllWindows;
}
return topMostWindow;
}
}
*/
public static CodeAccessPermission UnmanagedCode {
get {
if (unmanagedCode == null) {
unmanagedCode = new SecurityPermission(SecurityPermissionFlag.UnmanagedCode);
}
return unmanagedCode;
}
}
/*
public static CodeAccessPermission UnrestrictedEnvironment {
get {
if (unrestrictedEnvironment == null) {
unrestrictedEnvironment = new EnvironmentPermission(PermissionState.Unrestricted);
}
return unrestrictedEnvironment;
}
}
*/
public static CodeAccessPermission UnrestrictedWindows {
get {
if (unrestrictedWindows == null) {
unrestrictedWindows = AllWindows;
}
return unrestrictedWindows;
}
}
/* FXCop avoid unused code
public static CodeAccessPermission Win32HandleManipulation {
get {
if (win32HandleManipulation == null) {
win32HandleManipulation = UnmanagedCode;
}
return win32HandleManipulation;
}
}
*/
public static CodeAccessPermission WindowAdornmentModification {
get {
if (windowAdornmentModification == null) {
windowAdornmentModification = AllWindows;
}
return windowAdornmentModification;
}
}
/* unused
public static CodeAccessPermission AutoComplete {
get {
if (autoComplete == null) {
autoComplete = UnmanagedCode;
}
return autoComplete;
}
}
*/
[ResourceExposure(ResourceScope.Machine)]
[ResourceConsumption(ResourceScope.Machine)]
internal static string UnsafeGetFullPath(string fileName) {
string full = fileName;
FileIOPermission fiop = new FileIOPermission( PermissionState.None );
fiop.AllFiles = FileIOPermissionAccess.PathDiscovery;
fiop.Assert();
try {
full = Path.GetFullPath(fileName);
}
finally {
CodeAccessPermission.RevertAssert();
}
return full;
}
/// SECREVIEW: ReviewImperativeSecurity
/// vulnerability to watch out for: A method uses imperative security and might be constructing the permission using state information or return values that can change while the demand is active.
/// reason for exclude: fileName is a local variable and not subject to race conditions.
[SuppressMessage("Microsoft.Security", "CA2103:ReviewImperativeSecurity")]
internal static void DemandFileIO(FileIOPermissionAccess access, string fileName) {
new FileIOPermission(access, UnsafeGetFullPath(fileName)).Demand();
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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- DBCommandBuilder.cs
- DataGridViewBindingCompleteEventArgs.cs
- ActivityExecutionFilter.cs
- ConfigXmlSignificantWhitespace.cs
- AliasedSlot.cs
- WebControlAdapter.cs
- SymbolPair.cs
- FlowDocumentFormatter.cs
- TableColumn.cs
- AddInStore.cs
- WebPartConnectionsEventArgs.cs
- OrderedHashRepartitionStream.cs
- MarginsConverter.cs
- UpdateManifestForBrowserApplication.cs
- Int64Animation.cs
- TimeSpan.cs
- AbstractSvcMapFileLoader.cs
- RequestQueue.cs
- ComboBoxItem.cs
- FontConverter.cs
- IsolatedStoragePermission.cs
- WebEvents.cs
- BulletedList.cs
- ToolStripStatusLabel.cs