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C# TokenBasedSet.IsEmpty方法代码示例

本文整理汇总了C#中System.Security.Util.TokenBasedSet.IsEmpty方法的典型用法代码示例。如果您正苦于以下问题:C# TokenBasedSet.IsEmpty方法的具体用法?C# TokenBasedSet.IsEmpty怎么用?C# TokenBasedSet.IsEmpty使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在System.Security.Util.TokenBasedSet的用法示例。


在下文中一共展示了TokenBasedSet.IsEmpty方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: CheckTokenBasedSets

        private static bool CheckTokenBasedSets( TokenBasedSet thisSet, TokenBasedSet permSet, bool unrestricted, PermissionListSetState state, out Exception exception, bool bNeedAlteredSet, out TokenBasedSet alteredSet )
        {
            alteredSet = null;

            // If the set is empty, there is no reason to walk the
            // stack.

            if (permSet == null || permSet.IsEmpty())
            {
                if (bNeedAlteredSet)
                    alteredSet = new TokenBasedSet( 1, 4 );
                exception = null;
                return false;
            }

            int permMaxIndex = permSet.GetMaxUsedIndex();
            
            // Make a quick check to see if permSet definitely contains permissions that this set doesn't
            
            if (permMaxIndex > thisSet.GetMaxUsedIndex())
            {
                // The only way we don't want to throw an exception is
                // if we are unrestricted.  Then, if we don't want to throw
                // an exception we may want to terminate the stack walk
                // based on an unrestricted assert.

                if (unrestricted)
                {
                    if (((state & PermissionListSetState.UnrestrictedAssert) != 0))
                    {
                        if (bNeedAlteredSet)
                            alteredSet = new TokenBasedSet( 1, 4 );
                        exception = null;
                        return false;
                    }
                    else
                    {
                        exception = null;
                        return true;
                    }
                }
                else
                {
                    exception = new SecurityException(Environment.GetResourceString("Security_GenericNoType") );
                    return false;
                }
            }


            bool continueStackWalk = false;
            
            // We know that checking to <permMaxIndex> is sufficient because of above check
            for (int i = 0; i <= permMaxIndex; i++)
            {
                Object obj = permSet.GetItem(i);
                
                if (obj != null)
                {
                    CodeAccessPermission cap = (CodeAccessPermission)obj;

                    PermissionList permList = (PermissionList)thisSet.GetItem(i);
                    
                    if (permList != null)
                    {
                        bool tempContinue = permList.CheckDemandInternal(cap, out exception);

                        if (exception != null)
                            return false;

                        if (tempContinue)
                        {
                            // If we are supposed to continue the stack walk but there is an unrestricted
                            // deny, then we should fail.

                            if (((state & PermissionListSetState.UnrestrictedDeny) != 0) && (cap is IUnrestrictedPermission))
                            {
                                exception = new SecurityException(String.Format( Environment.GetResourceString("Security_Generic"), cap.GetType().AssemblyQualifiedName ) );
                                return false;
                            }

                            continueStackWalk = true;
                        }
                        else if (((state & PermissionListSetState.UnrestrictedAssert) == 0) && (cap is IUnrestrictedPermission))
                        {
                            // We only want to build the altered set if we don't have an
                            // unrestricted assert because we know if we have an unrestricted
                            // assert and we don't throw an exception that the stackwalk should
                            // include no unrestricted permissions.

                            if (bNeedAlteredSet)
                            {
                                if (alteredSet == null)
                                    alteredSet = CopyTokenBasedSet( permSet );

                                alteredSet.SetItem( i, null );
                            }
                        }
                    }
                    else
                    {
//.........这里部分代码省略.........
开发者ID:ArildF,项目名称:masters,代码行数:101,代码来源:permissionlistset.cs


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