/// <summary>确定是否已取消当前安全上下文的 Windows 标识部分的流动。</summary>
/// <returns>如果已取消流动，则为 true；否则为 false。</returns>
public static bool IsWindowsIdentityFlowSuppressed()
{
if (!SecurityContext._LegacyImpersonationPolicy)
{
return(SecurityContext.IsFlowSuppressed(SecurityContextDisableFlow.WI));
}
return(true);
}
public static SecurityContext Capture()
{
if (SecurityContext.IsFlowSuppressed())
{
return((SecurityContext)null);
}
StackCrawlMark stackMark = StackCrawlMark.LookForMyCaller;
return(SecurityContext.Capture(Thread.CurrentThread.GetExecutionContextReader(), ref stackMark) ?? SecurityContext.CreateFullTrustSecurityContext());
}
internal static AsyncFlowControl SuppressFlow(SecurityContextDisableFlow flags)
{
if (SecurityContext.IsFlowSuppressed(flags))
{
throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_CannotSupressFlowMultipleTimes"));
}
ExecutionContext mutableExecutionContext = Thread.CurrentThread.GetMutableExecutionContext();
if (mutableExecutionContext.SecurityContext == null)
{
mutableExecutionContext.SecurityContext = new SecurityContext();
}
AsyncFlowControl result = default(AsyncFlowControl);
result.Setup(flags);
return(result);
}
public static bool IsFlowSuppressed()
{
return(SecurityContext.IsFlowSuppressed(SecurityContextDisableFlow.All));
}
