C# PermissionSet.ToString方法代码示例

		public void PermissionStateUnrestricted () 
		{
			PermissionSet ps = new PermissionSet (PermissionState.Unrestricted);
			Assert ("PermissionStateUnrestricted.IsUnrestricted", ps.IsUnrestricted ());
			Assert ("PermissionStateUnrestricted.IsEmpty", !ps.IsEmpty ());
			Assert ("PermissionStateUnrestricted.IsReadOnly", !ps.IsReadOnly);
			AssertEquals ("PermissionStateUnrestricted.ToXml().ToString()==ToString()", ps.ToXml ().ToString (), ps.ToString ());
		}

		public void PermissionStateUnrestricted () 
		{
			PermissionSet ps = new PermissionSet (PermissionState.Unrestricted);
			Assert.IsTrue (ps.IsUnrestricted (), "PermissionStateUnrestricted.IsUnrestricted");
			Assert.IsTrue (!ps.IsEmpty (), "PermissionStateUnrestricted.IsEmpty");
			Assert.IsTrue (!ps.IsReadOnly, "PermissionStateUnrestricted.IsReadOnly");
			Assert.AreEqual (ps.ToXml ().ToString (), ps.ToString (), "PermissionStateUnrestricted.ToXml().ToString()==ToString()");
			Assert.IsTrue (!ps.ContainsNonCodeAccessPermissions (), "ContainsNonCodeAccessPermissions");
		}

		public void PermissionSetNull () 
		{
			// no exception is thrown
			PermissionSet ps = new PermissionSet (null);
			Assert.IsTrue (!ps.IsUnrestricted (), "PermissionStateNull.IsUnrestricted");
			Assert.IsTrue (ps.IsEmpty (), "PermissionStateNull.IsEmpty");
			Assert.IsTrue (!ps.IsReadOnly, "PermissionStateNull.IsReadOnly");
			Assert.AreEqual (ps.ToXml ().ToString (), ps.ToString (), "PermissionStateNull.ToXml().ToString()==ToString()");
			Assert.IsTrue (!ps.ContainsNonCodeAccessPermissions (), "ContainsNonCodeAccessPermissions");
		}

		public void PermissionSetNull () 
		{
			// no exception is thrown
			PermissionSet ps = new PermissionSet (null);
#if NET_2_0
			Assert ("PermissionStateNull.IsUnrestricted", !ps.IsUnrestricted ());
			Assert ("PermissionStateNull.IsEmpty", ps.IsEmpty ());
#else
			Assert ("PermissionStateNull.IsUnrestricted", ps.IsUnrestricted ());
			Assert ("PermissionStateNull.IsEmpty", !ps.IsEmpty ());
#endif
			Assert ("PermissionStateNull.IsReadOnly", !ps.IsReadOnly);
			AssertEquals ("PermissionStateNull.ToXml().ToString()==ToString()", ps.ToXml ().ToString (), ps.ToString ());
		}

 public static string[] PermissionSetToIdentityList(PermissionSet permissionSet)
 {
     string psXml = permissionSet != null ? permissionSet.ToString() : "<PermissionSet/>";
     XmlDocument psDocument = new XmlDocument();
     // CA3057: DoNotUseLoadXml.  Suppressed since 'psXml' is a trusted or a constant string.
     psDocument.LoadXml(psXml);
     return XmlToIdentityList(psDocument.DocumentElement);
 }

        internal bool IsSubsetOfHelper(PermissionSet target, IsSubsetOfType type, out IPermission firstPermThatFailed, bool ignoreNonCas)
        {
    #if _DEBUG
            if (debug)     
                DEBUG_WRITE("IsSubsetOf\n" +
                            "Other:\n" +
                            (target == null ? "<null>" : target.ToString()) +
                            "\nMe:\n" +
                            ToString());
    #endif
    
            firstPermThatFailed = null;
            if (target == null || target.FastIsEmpty())
            {
                if(this.IsEmpty())
                    return true;
                else
                {
                    firstPermThatFailed = GetFirstPerm();
                    return false;
                }
            }
            else if (this.IsUnrestricted() && !target.IsUnrestricted())
                return false;
            else if (this.m_permSet == null)
                return true;
            else
            {
                target.CheckSet();

                for (int i = m_permSet.GetStartingIndex(); i <= this.m_permSet.GetMaxUsedIndex(); ++i)
                {
                    IPermission thisPerm = this.GetPermission(i);
                    if (thisPerm == null || thisPerm.IsSubsetOf(null))
                        continue;

                    IPermission targetPerm = target.GetPermission(i);
#if _DEBUG                    
                    PermissionToken token = (PermissionToken)PermissionToken.s_tokenSet.GetItem( i );
                    Contract.Assert(targetPerm == null || (token.m_type & PermissionTokenType.DontKnow) == 0, "Token not properly initialized");
#endif

                    if (target.m_Unrestricted)
                        continue;

                    // targetPerm can be null here, but that is fine since it thisPerm is a subset
                    // of empty/null then we can continue in the loop.
                    CodeAccessPermission cap = thisPerm as CodeAccessPermission;
                    if(cap == null)
                    {
                        if (!ignoreNonCas && !thisPerm.IsSubsetOf( targetPerm ))
                        {
                            firstPermThatFailed = thisPerm;
                            return false;
                        }
                    }
                    else
                    {
                        firstPermThatFailed = thisPerm;
                        switch(type)
                        {
                        case IsSubsetOfType.Normal:
                            if (!thisPerm.IsSubsetOf( targetPerm ))
                                return false;
                            break;
                        case IsSubsetOfType.CheckDemand:
                            if (!cap.CheckDemand( (CodeAccessPermission)targetPerm ))
                                return false;
                            break;
                        case IsSubsetOfType.CheckPermitOnly:
                            if (!cap.CheckPermitOnly( (CodeAccessPermission)targetPerm ))
                                return false;
                            break;
                        case IsSubsetOfType.CheckAssertion:
                            if (!cap.CheckAssert( (CodeAccessPermission)targetPerm ))
                                return false;
                            break;
                        }
                        firstPermThatFailed = null;
                    }
                }
            }

            return true;
        }

		public SecurityException (string message, AssemblyName assemblyName, PermissionSet grant, 
			PermissionSet refused, MethodInfo method, SecurityAction action, object demanded, 
			IPermission permThatFailed, Evidence evidence)
			: base (message)
		{
			base.HResult = unchecked ((int)0x8013150A);
			_assembly = assemblyName;
			_granted = (grant == null) ? String.Empty : grant.ToString ();
			_refused = (refused == null) ? String.Empty : refused.ToString ();
			_method = method;
			_action = action;
			_demanded = demanded;
			_firstperm = permThatFailed;
			if (_firstperm != null)
				permissionType = _firstperm.GetType ();
			_evidence = evidence;
		}

		public void PermissionSetPermissionSet () 
		{
			FileDialogPermission fdp = new FileDialogPermission (FileDialogPermissionAccess.Open);
			PermissionSet ps1 = new PermissionSet (PermissionState.None);
			ps1.AddPermission (fdp);
			Assert ("ps1.IsEmpty", !ps1.IsEmpty ());

			PermissionSet ps = new PermissionSet (ps1);
			Assert ("PermissionSetPermissionSet.IsUnrestricted", !ps.IsUnrestricted ());
			Assert ("PermissionSetPermissionSet.IsEmpty", !ps.IsEmpty ());
			Assert ("PermissionSetPermissionSet.IsReadOnly", !ps.IsReadOnly);
			AssertEquals ("PermissionSetPermissionSet.ToXml().ToString()==ToString()", ps.ToXml ().ToString (), ps.ToString ());
		}

		public void ConvertPermissionSet_BinaryToBinary ()
		{
			PermissionSet ps = new PermissionSet (PermissionState.None);
			byte[] data = Encoding.ASCII.GetBytes (ps.ToString ());
			byte[] result = PermissionSet.ConvertPermissionSet ("XML", data, "BINARY");

			byte[] result2 = PermissionSet.ConvertPermissionSet ("BINARY", result, "BINARY");
			// there's only a little difference - but it doesn't throw an exception
			//Assert.IsTrue (BitConverter.ToString (result) != BitConverter.ToString (result2), "BINARY!=BINARY");
		}

		public void ConvertPermissionSet_XmlToXml ()
		{
			PermissionSet ps = new PermissionSet (PermissionState.None);
			byte[] data = Encoding.ASCII.GetBytes (ps.ToString ());
			byte[] result = PermissionSet.ConvertPermissionSet ("XML", data, "XML");
			Assert.AreEqual (Encoding.ASCII.GetString (result), ps.ToString (), "PS-XML");

			result = PermissionSet.ConvertPermissionSet ("XMLASCII", data, "XMLASCII");
			Assert.AreEqual (Encoding.ASCII.GetString (result), ps.ToString (), "PS-XMLASCII");
		}

     /// <include file='doc\PermissionSet.uex' path='docs/doc[@for="PermissionSet.IsSubsetOf"]/*' />
     public virtual bool IsSubsetOf(PermissionSet target)
     {
 #if _DEBUG
         if (debug)     
             DEBUG_WRITE("IsSubsetOf\n" +
                         "Other:\n" +
                         (target == null ? "<null>" : target.ToString()) +
                         "\nMe:\n" +
                         ToString());
 #endif
 
         if (target == null || target.IsEmpty())
             return this.IsEmpty();
         else if (this.IsUnrestricted() && !target.IsUnrestricted())
         {
             return false;
         }
         else if (this.m_normalPermSet != null && !this.m_normalPermSet.IsSubsetOf( target.m_normalPermSet ))
         {
             return false;
         }
         else if (target.IsUnrestricted() && !this.ContainsNonCodeAccessPermissions()) 
         {
             return true;
         }
         else
         {
             return this.m_unrestrictedPermSet == null || this.m_unrestrictedPermSet.IsSubsetOf( target.m_unrestrictedPermSet );
         }
     }

        internal static XmlDocument PermissionSetToXml(PermissionSet ps)
        {
            XmlDocument inputDocument = new XmlDocument();
            string xml = (ps != null) ? ps.ToString() : "<PermissionSet/>";

            // CA3057: DoNotUseLoadXml.  Suppressed since 'xml' is a trusted or a constant string.
            inputDocument.LoadXml(xml);
            XmlDocument outputDocument = new XmlDocument();
            XmlElement psElement = XmlUtil.CloneElementToDocument(inputDocument.DocumentElement, outputDocument, XmlNamespaces.asmv2);
            outputDocument.AppendChild(psElement);
            return outputDocument;
        }

 internal static XmlDocument PermissionSetToXml(PermissionSet ps)
 {
     XmlDocument document = new XmlDocument();
     string xml = (ps != null) ? ps.ToString() : "<PermissionSet/>";
     document.LoadXml(xml);
     XmlDocument document2 = new XmlDocument();
     XmlElement newChild = XmlUtil.CloneElementToDocument(document.DocumentElement, document2, "urn:schemas-microsoft-com:asm.v2");
     document2.AppendChild(newChild);
     return document2;
 }

 public static string[] PermissionSetToIdentityList(PermissionSet permissionSet)
 {
     string xml = (permissionSet != null) ? permissionSet.ToString() : "<PermissionSet/>";
     XmlDocument document = new XmlDocument();
     document.LoadXml(xml);
     return XmlToIdentityList(document.DocumentElement);
 }

		public static void PermissionSetDemo()
		{
			
			Console.WriteLine("Executing Permission Set Demo");
			try
			{
				// Open a permission set.
				PermissionSet ps1 = new PermissionSet(PermissionState.None);
				Console.WriteLine("Adding permission to open a file from a file dialog box.");
				// Add a permission to the permission set.
				ps1.AddPermission(new FileDialogPermission(FileDialogPermissionAccess.Open));
				Console.WriteLine("Demanding Permission to open a file.");
				ps1.Demand();
				Console.WriteLine("Demand succeeded.");
				Console.WriteLine("Adding permission to save a file from a file dialog box.");
				ps1.AddPermission(new FileDialogPermission(FileDialogPermissionAccess.Save));
				Console.WriteLine("Demanding permission to open and save a file.");
				ps1.Demand();
				Console.WriteLine("Demand succeeded.");
				Console.WriteLine("Adding a permission to read environment variable USERNAME.");
				ps1.AddPermission(new EnvironmentPermission(EnvironmentPermissionAccess.Read, "USERNAME"));
				ps1.Demand();
				Console.WriteLine("Demand succeeded.");
				Console.WriteLine("Adding permission to read environment variable COMPUTERNAME.");
				ps1.AddPermission(new EnvironmentPermission(EnvironmentPermissionAccess.Read, "COMPUTERNAME"));
				// Demand all the permissions in the set.
				Console.WriteLine("Demand all permissions.");
				ps1.Demand();
				Console.WriteLine("Demand succeeded.");
				// Display the number of permissions in the set.
				Console.WriteLine("Number of permissions = " + ps1.Count);
				// Display the value of the IsSynchronized property.
				Console.WriteLine("IsSynchronized property = " + ps1.IsSynchronized);
				// Display the value of the IsReadOnly property.
				Console.WriteLine("IsReadOnly property = " + ps1.IsReadOnly);
				// Display the value of the SyncRoot property.
				Console.WriteLine("SyncRoot property = " + ps1.SyncRoot);
				// Display the result of a call to the ContainsNonCodeAccessPermissions method.
				// Gets a value indicating whether the PermissionSet contains permissions
				// that are not derived from CodeAccessPermission.
				// Returns true if the PermissionSet contains permissions that are not 
				// derived from CodeAccessPermission; otherwise, false.
				Console.WriteLine("ContainsNonCodeAccessPermissions method returned " + ps1.ContainsNonCodeAccessPermissions());
				Console.WriteLine("Value of the permission set ToString = \n" + ps1.ToString());
				PermissionSet ps2 = new PermissionSet(PermissionState.None);
				// Create a second permission set and compare it to the first permission set.
				ps2.AddPermission(new EnvironmentPermission(EnvironmentPermissionAccess.Read, "USERNAME"));
				ps2.AddPermission(new EnvironmentPermission(EnvironmentPermissionAccess.Write, "COMPUTERNAME"));
				Console.WriteLine("Permission set 2 = " + ps2);
				IEnumerator list = ps1.GetEnumerator();
				Console.WriteLine("Permissions in first permission set:");
				foreach (var permission in ps1)
					Console.WriteLine(permission.ToString());
				Console.WriteLine("Second permission IsSubSetOf first permission = " + ps2.IsSubsetOf(ps1));
				// Display the intersection of two permission sets.
				PermissionSet ps3 = ps2.Intersect(ps1);
				Console.WriteLine("The intersection of the first permission set and the second permission set = " + ps3.ToString());
				// Create a new permission set.
				PermissionSet ps4 = new PermissionSet(PermissionState.None);
				ps4.AddPermission(new FileIOPermission(FileIOPermissionAccess.Read, "C:\\Temp\\Testfile.txt"));
				ps4.AddPermission(new FileIOPermission(FileIOPermissionAccess.Write | FileIOPermissionAccess.Append, "C:\\Temp\\Testfile.txt"));
				// Display the union of two permission sets.
				PermissionSet ps5 = ps3.Union(ps4);
				Console.WriteLine("The union of permission set 3 and permission set 4 = " + ps5.ToString());
				// Remove FileIOPermission from the permission set.
				ps5.RemovePermission(typeof(FileIOPermission));
				Console.WriteLine("The last permission set after removing FileIOPermission = " + ps5.ToString());
				// Change the permission set using SetPermission
				ps5.SetPermission(new EnvironmentPermission(EnvironmentPermissionAccess.AllAccess, "USERNAME"));
				Console.WriteLine("Permission set after SetPermission = " + ps5.ToString());
				// Display result of ToXml and FromXml operations.
				PermissionSet ps6 = new PermissionSet(PermissionState.None);
				ps6.FromXml(ps5.ToXml());
				Console.WriteLine("Result of ToFromXml = " + ps6.ToString() + "\n");
				// Display result of PermissionSet.GetEnumerator.
				IEnumerator psEnumerator = ps1.GetEnumerator();
				while (psEnumerator.MoveNext())
				{
					Console.WriteLine(psEnumerator.Current.ToString());
				}
				// Check for an unrestricted permission set.
				PermissionSet ps7 = new PermissionSet(PermissionState.Unrestricted);
				Console.WriteLine("Permission set is unrestricted = " + ps7.IsUnrestricted());
				// Create and display a copy of a permission set.
				ps7 = ps5.Copy();
				Console.WriteLine("Result of copy = " + ps7.ToString());
			}
			catch (Exception e)
			{
				Console.WriteLine(e.Message.ToString());
			}
		}