UrlIdentityPermission Class
Assembly: mscorlib (in mscorlib.dll)
'Declaration <SerializableAttribute> _ <ComVisibleAttribute(True)> _ Public NotInheritable Class UrlIdentityPermission Inherits CodeAccessPermission 'Usage Dim instance As UrlIdentityPermission
/** @attribute SerializableAttribute() */ /** @attribute ComVisibleAttribute(true) */ public final class UrlIdentityPermission extends CodeAccessPermission
SerializableAttribute ComVisibleAttribute(true) public final class UrlIdentityPermission extends CodeAccessPermission
The complete URL is considered, including the protocol (HTTP, HTTPS, FTP) and the file. For example, http://www.fourthcoffee.com/process/grind.htm is a complete URL.
URLs can be matched exactly or by a wildcard in the final position, for example: http://www.fourthcoffee.com/process/*. URLs can also contain a wildcard ("*") prefix at the dot delimiter. For example, the URL name string http://www.fourthcoffee.com/process/grind.htm/ is a subset of http://*.fourthcoffee.com/process/grind.htm/ and http://*.com/process/grind.htm/.
Caution |
|---|
| UrlIdentityPermission grants permission for all paths to the file, including both the URL and the IP address. To Deny access to the file, you must Deny all possible paths to the file. For example, if http://www.fourthcoffee.com/process/grind.htm is located at IP address 192.168.238.241, to Deny access to http://www.fourthcoffee.com/process/grind.htm, you must Deny http://www.fourthcoffee.com/process/grind.htm, 192.168.238.241/grind.htm and any other path that you can use to access the code. Unfortunately, there are a myriad of ways URL paths can be phrased, so it is extremely difficult to block all paths through the use of Deny alone. A better technique to deal with multiple paths is to use a combination of PermitOnly and Deny. PermitOnly allows you to identify a finite set of URLs that you can provide access to, and then Deny allows you to explicitly select addresses from that set that you want to deny access to. For more information on this subject and the use of PermitOnly with Deny, see Canonicalization Problems Using Deny in the Using the Deny Method topic. |
Note |
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| In the .NET Framework versions 1.0 and 1.1, identity permissions cannot have an Unrestricted permission state value. In the .NET Framework version 2.0, identity permissions can have any permission state value. This means that in version 2.0, identity permissions have the same behavior as permissions that implement the IUnrestrictedPermission interface. For information on executing version 2.0 applications with version 1.1 CAS policy, see <legacyV1CASPolicy> Element. |
The following example demonstrates the behavior of the UrlIdentityPermission methods. The best use of this sample is to view results of the methods, not to show how the methods are used.
Imports System Imports System.Security Imports System.Security.Permissions Imports Microsoft.VisualBasic <Assembly: CLSCompliant(True)> Public Class UrlIdentityPermissionDemo Private Function IsSubsetOfDemo() As Boolean Dim returnValue As Boolean = True Dim url1 As String = "" Dim url2 As String = "" Dim urlIdPerm1, urlIdPerm2 As UrlIdentityPermission Dim urlGen1 As New UrlGenerator() Dim urlGen2 As New UrlGenerator() urlGen1.ResetIndex() While urlGen1.CreateUrl(url1) urlIdPerm1 = New UrlIdentityPermission(url1) urlGen2.ResetIndex() Console.WriteLine("********************************************************\n") While urlGen2.CreateUrl(url2) urlIdPerm2 = New UrlIdentityPermission(url2) Dim firstPermission As String = IIf(url1 = "" Or url1 Is Nothing, "null", url1) Dim secondPermission As String = IIf(url2 = "" Or url2 Is Nothing, "null", url2) If urlIdPerm2 Is Nothing Then GoTo ContinueWhile2 End If Try If urlIdPerm1.IsSubsetOf(urlIdPerm2) Then Console.WriteLine(firstPermission & ControlChars.Lf & " is a subset of " & secondPermission & ControlChars.Lf) Else Console.WriteLine(firstPermission & ControlChars.Lf & " is not a subset of " & secondPermission & ControlChars.Lf) End If Catch e As Exception Console.WriteLine(IIf("An exception was thrown for subset :" & url1 = "", "null.", IIf(url1 & ControlChars.Lf & url2 = "", "null.", url2 & ControlChars.Lf & e.ToString()))) End Try ContinueWhile2: End While ContinueWhile1: End While Return returnValue End Function 'IsSubsetOfDemo ' Union creates a new permission that is the union of the current permission and ' the specified permission. Private Function UnionDemo() As Boolean Dim returnValue As Boolean = True Dim url1 As String = "" Dim url2 As String = "" Dim urlIdPerm1, urlIdPerm2 As UrlIdentityPermission Dim urlIdPerm3 As IPermission Dim urlGen1 As New UrlGenerator() Dim urlGen2 As New UrlGenerator() urlGen1.ResetIndex() While urlGen1.CreateUrl(url1) urlIdPerm1 = New UrlIdentityPermission(url1) Console.WriteLine("**********************************************************" & ControlChars.Lf) urlGen2.ResetIndex() While urlGen2.CreateUrl(url2) Try urlIdPerm2 = New UrlIdentityPermission(url2) Dim firstPermission As String = IIf(url1 = "" Or url1 Is Nothing, "null", url1) Dim secondPermission As String = IIf(url2 = "" Or url2 Is Nothing, "null", url2) urlIdPerm3 = CType(urlIdPerm1.Union(urlIdPerm2), UrlIdentityPermission) urlIdPerm3 = urlIdPerm1.Union(urlIdPerm2) If urlIdPerm3 Is Nothing Then Console.WriteLine("The union of " & firstPermission & " and " & ControlChars.Lf & ControlChars.Tab & secondPermission & " is null.") Else Console.WriteLine("The union of " & firstPermission & " and " & ControlChars.Lf & ControlChars.Tab & secondPermission & " = " & ControlChars.Lf & ControlChars.Tab & CType(urlIdPerm3, UrlIdentityPermission).Url.ToString()) End If Catch e As Exception 'Expected exception. Console.WriteLine("An exception was thrown for union :" & e.ToString()) End Try ContinueWhile2: End While ContinueWhile1: End While Return returnValue End Function 'UnionDemo ' Intersect creates and returns a new permission that is the intersection of the ' current permission and the permission specified. Private Function IntersectDemo() As Boolean Dim returnValue As Boolean = True Dim url1 As String = "" Dim url2 As String = "" Dim urlIdPerm1, urlIdPerm2, urlIdPerm3 As UrlIdentityPermission Dim urlGen1 As New UrlGenerator() Dim urlGen2 As New UrlGenerator() urlGen1.ResetIndex() While urlGen1.CreateUrl(url1) urlIdPerm1 = New UrlIdentityPermission(url1) Console.WriteLine("**********************************************************" & ControlChars.Lf) urlGen2.ResetIndex() Console.WriteLine("********************************************************\n") While urlGen2.CreateUrl(url2) urlIdPerm2 = New UrlIdentityPermission(url2) Dim firstPermission As String = IIf(url1 = "" Or url1 Is Nothing, "null", url1) Dim secondPermission As String = IIf(url2 = "" Or url2 Is Nothing, "null", url2) Try urlIdPerm3 = CType(urlIdPerm1.Intersect(urlIdPerm2), UrlIdentityPermission) If Not (urlIdPerm3 Is Nothing) AndAlso Not (urlIdPerm3.Url Is Nothing) Then Console.WriteLine("The intersection of " & firstPermission & " and " & ControlChars.Lf & ControlChars.Tab & secondPermission & " = " & ControlChars.Lf & ControlChars.Tab & CType(urlIdPerm3, UrlIdentityPermission).Url.ToString()) Else Console.WriteLine("The intersection of " & firstPermission & " and " & ControlChars.Lf & ControlChars.Tab & secondPermission & " is null. ") End If Catch e As Exception Console.WriteLine("An exception was thrown for the intersection : " & e.ToString()) returnValue = False End Try ContinueWhile2: End While ContinueWhile1: End While Return returnValue End Function 'IntersectDemo 'Copy creates and returns an identical copy of the current permission. Private Function CopyDemo() As Boolean Dim returnValue As Boolean = True Dim url1 As String = "" Dim url2 As String = "" Dim urlIdPerm1, urlIdPerm2 As UrlIdentityPermission Dim urlGen1 As New UrlGenerator() Dim urlGen2 As New UrlGenerator() urlGen1.ResetIndex() While urlGen1.CreateUrl(url1) urlIdPerm1 = New UrlIdentityPermission(url1) urlGen2.ResetIndex() Console.WriteLine("********************************************************\n") Try urlIdPerm2 = CType(urlIdPerm1.Copy(), UrlIdentityPermission) If Not (urlIdPerm2 Is Nothing) Then Console.WriteLine("Result of copy = " & urlIdPerm2.ToString() & ControlChars.Lf) Else Console.WriteLine("Result of copy is null. " & ControlChars.Lf) End If Catch e As Exception If (True.ToString()) Then If url1 = "" Then Console.WriteLine("The target UrlIdentityPermission is empty; copy failed.") Else Console.WriteLine(e.ToString()) End If End If GoTo ContinueWhile1 End Try ContinueWhile1: End While Return returnValue End Function 'CopyDemo ' ToXml creates an XML encoding of the permission and its current state; FromXml ' reconstructs a permission with the specified state from the XML encoding. Private Function ToFromXmlDemo() As Boolean Dim returnValue As Boolean = True Dim url1 As String = "" Dim urlIdPerm1, urlIdPerm2 As UrlIdentityPermission Dim urlGen1 As New UrlGenerator() Dim urlGen2 As New UrlGenerator() urlGen1.ResetIndex() While urlGen1.CreateUrl(url1) urlIdPerm1 = New UrlIdentityPermission(url1) Console.WriteLine("********************************************************\n") urlGen2.ResetIndex() Try urlIdPerm2 = New UrlIdentityPermission(PermissionState.None) urlIdPerm2.FromXml(urlIdPerm1.ToXml()) Console.WriteLine("Result of ToFromXml = " & urlIdPerm2.ToString()) Catch e As Exception Console.WriteLine("ToFromXml failed :" & urlIdPerm1.ToString() & e.ToString()) GoTo ContinueWhile1 End Try ContinueWhile1: End While Return returnValue End Function 'ToFromXmlDemo ' Invoke all demos. Public Function runDemo() As Boolean Dim ret As Boolean = True Dim retTmp As Boolean ' Call IsSubsetOf demo. retTmp = IsSubsetOfDemo() If retTmp Then Console.Out.WriteLine("IsSubset demo completed successfully.") Else Console.Out.WriteLine("IsSubset demo failed.") End If ret = retTmp AndAlso ret ' Call Union demo. retTmp = UnionDemo() If retTmp Then Console.Out.WriteLine("Union demo completed successfully.") Else Console.Out.WriteLine("Union demo failed.") End If ret = retTmp AndAlso ret ' Call Intersect demo. retTmp = IntersectDemo() If retTmp Then Console.Out.WriteLine("Intersect demo completed successfully.") Else Console.Out.WriteLine("Intersect demo failed.") End If ret = retTmp AndAlso ret ' Call Copy demo. retTmp = CopyDemo() If retTmp Then Console.Out.WriteLine("Copy demo completed successfully.") Else Console.Out.WriteLine("Copy demo failed.") End If ret = retTmp AndAlso ret ' Call ToFromXml demo. retTmp = ToFromXmlDemo() If retTmp Then Console.Out.WriteLine("ToFromXml demo completed successfully.") Else Console.Out.WriteLine("ToFromXml demo failed.") End If ret = retTmp AndAlso ret Return ret End Function 'runDemo ' Test harness. Public Overloads Shared Sub Main(ByVal args() As [String]) Try Dim democase As New UrlIdentityPermissionDemo() Dim ret As Boolean = democase.runDemo() If ret Then Console.Out.WriteLine("UrlIdentity demo completed successfully.") Console.Out.WriteLine("Press the Enter key to exit.") Dim consoleInput As String = Console.ReadLine() System.Environment.ExitCode = 100 Else Console.Out.WriteLine("UrlIdentity demo failed.") Console.Out.WriteLine("Press the Enter key to exit.") Dim consoleInput As String = Console.ReadLine() System.Environment.ExitCode = 101 End If Catch e As Exception Console.Out.WriteLine("UrlIdentity demo failed.") Console.WriteLine(e.ToString()) Console.Out.WriteLine("Press the Enter key to exit.") Dim consoleInput As String = Console.ReadLine() System.Environment.ExitCode = 101 End Try End Sub 'Main End Class 'UrlIdentityPermissionDemo ' This class generates UrlIdentityPermission objects. Friend Class UrlGenerator Private myUrl As String() = {"http://www.fourthcoffee.com/process/grind.htm", "http://www.fourthcoffee.com/process/*", "http://www.fourthcoffee.com/*", "http://www.fourthcoffee.com/process/*", "http://www.contoso.com/math.asmx"} Private urlIndex As Integer = 0 Public Sub New() ResetIndex() End Sub 'New Public Sub ResetIndex() urlIndex = 0 End Sub 'ResetIndex ' CreateUrl creates a UrlIdentityPermission. Public Function CreateUrl(ByRef url As String) As Boolean If urlIndex = myUrl.Length Then url = "" urlIndex &= 1 Return True End If If urlIndex > myUrl.Length Then url = "" Return False End If url = myUrl(urlIndex) urlIndex = urlIndex + 1 Return True End Function 'CreateUrl ' End of UrlGenerator.
// This sample demonstrates the IsSubsetOf, Union, Intersect,
// Copy, ToXml and FromXml methods
// of the UrlIdentityPermission class.
import System.*;
import System.Security.*;
import System.Security.Permissions.*;
/** @assembly CLSCompliant(true)
*/
public class UrlIdentityPermissionDemo
{
// IsSubsetOf determines whether the current permission is a
// subset of the specified permission.
private boolean IsSubsetOfDemo()
{
boolean returnValue = true;
String url1[] = new String[1];
String url2[] = new String[1];
UrlIdentityPermission urlIdPerm1[] = new UrlIdentityPermission[1];
UrlIdentityPermission urlIdPerm2[] = new UrlIdentityPermission[1];
UrlGenerator urlGen1 = new UrlGenerator();
UrlGenerator urlGen2 = new UrlGenerator();
urlGen1.ResetIndex();
while (urlGen1.CreateUrl(urlIdPerm1, url1)) {
if (urlIdPerm1 == null) {
continue;
}
urlGen2.ResetIndex();
Console.WriteLine("******************************************"
+ "**************\n");
while (urlGen2.CreateUrl(urlIdPerm2, url2)) {
System.String firstPermission = (url1[0].Equals("")
|| url1[0] == null) ? "null" : url1[0];
System.String secondPermission = (url2[0].Equals("")
|| url2[0] == null) ? "null" : url2[0];
if (urlIdPerm2 == null) {
continue;
}
try {
if (urlIdPerm1[0].IsSubsetOf(urlIdPerm2[0])) {
Console.WriteLine((firstPermission
+ "\n is a subset of " + secondPermission + "\n"));
}
else {
Console.WriteLine((firstPermission
+ "\n is not a subset of " + secondPermission
+ "\n"));
}
}
catch (System.Exception e) {
Console.WriteLine(("An exception was thrown for subset :"
+ url1 == "") ? "null." : (url1 + "\n"
+ url2 == "") ? "null." : url2 + "\n" + e);
}
}
}
return returnValue;
} //IsSubsetOfDemo
// Union creates a new permission that is the union
// of the current permission and
// the specified permission.
private boolean UnionDemo()
{
boolean returnValue = true;
String url1[] = new String[1];
String url2[] = new String[1];
UrlIdentityPermission urlIdPerm1[] = new UrlIdentityPermission[1];
UrlIdentityPermission urlIdPerm2[] = new UrlIdentityPermission[1];
IPermission urlIdPerm3;
UrlGenerator urlGen1 = new UrlGenerator();
UrlGenerator urlGen2 = new UrlGenerator();
urlGen1.ResetIndex();
while (urlGen1.CreateUrl(urlIdPerm1, url1)) {
if (urlIdPerm1 == null) {
continue;
}
Console.WriteLine("******************************************"
+ "****************\n");
urlGen2.ResetIndex();
while (urlGen2.CreateUrl(urlIdPerm2, url2)) {
try {
if (urlIdPerm2 == null) {
continue;
}
String firstPermission = (url1[0] == ""
|| url1[0] == null) ? "null" : url1[0];
String secondPermission = (url2[0] == ""
|| url2[0] == null) ? "null" : url2[0];
urlIdPerm3 = ((UrlIdentityPermission)(urlIdPerm1[0].
Union(urlIdPerm2[0])));
urlIdPerm3 = urlIdPerm1[0].Union(urlIdPerm2[0]);
if (urlIdPerm3 == null) {
Console.WriteLine(("The union of " + firstPermission
+ " and \n\t" + secondPermission + " is null."));
}
else {
Console.WriteLine(("The union of " + firstPermission
+ " and \n\t" + secondPermission + " = \n\t"
+ ((UrlIdentityPermission)(urlIdPerm3)).
get_Url().ToString()));
}
}
catch (System.Exception e) {
Console.WriteLine(("An exception was thrown for union :"
+ e));
returnValue = false;
}
}
}
return returnValue;
} //UnionDemo
// Intersect creates and returns a new permission that is
// the intersection of the
// current permission and the permission specified.
private boolean IntersectDemo()
{
boolean returnValue = true;
String url1[] = new String[1];
String url2[] = new String[1];
UrlIdentityPermission urlIdPerm1[] = new UrlIdentityPermission[1];
UrlIdentityPermission urlIdPerm2[] = new UrlIdentityPermission[1];
UrlIdentityPermission urlIdPerm3[] = new UrlIdentityPermission[1];
UrlGenerator urlGen1 = new UrlGenerator();
UrlGenerator urlGen2 = new UrlGenerator();
urlGen1.ResetIndex();
while (urlGen1.CreateUrl(urlIdPerm1, url1)) {
if (urlIdPerm1 == null) {
continue;
}
Console.WriteLine("***************************************"
+ "*******************\n");
urlGen2.ResetIndex();
Console.WriteLine("****************************************"
+ "****************\n");
while (urlGen2.CreateUrl(urlIdPerm2, url2)) {
if (urlIdPerm2 == null) {
continue;
}
String firstPermission = (url1[0] == ""
|| url1[0] == null) ? "null" : url1[0];
String secondPermission = (url2[0] == ""
|| url2[0] == null) ? "null" : url2[0];
try {
urlIdPerm3[0] = ((UrlIdentityPermission)(urlIdPerm1[0].
Intersect(urlIdPerm2[0])));
if (urlIdPerm3[0] != null && urlIdPerm3[0].
get_Url() != null) {
Console.WriteLine(("The intersection of "
+ firstPermission + " and \n\t" + secondPermission
+ " = \n\t"
+ ((UrlIdentityPermission)(urlIdPerm3[0])).
get_Url().ToString()));
}
else {
Console.WriteLine(("The intersection of "
+ firstPermission + " and \n\t"
+ secondPermission + " is nu //IntersectDemoll. "));
}
}
catch (System.Exception e) {
Console.WriteLine(("An exception was thrown "
+ "for the intersection : " + e));
returnValue = false;
}
}
}
return returnValue;
} //IntersectDemo
//Copy creates and returns an identical copy of the current permission.
private boolean CopyDemo()
{
boolean returnValue = true;
String url1[] = new String[1];
UrlIdentityPermission urlIdPerm1[] = new UrlIdentityPermission[1];
UrlIdentityPermission urlIdPerm2[] = new UrlIdentityPermission[1];
UrlGenerator urlGen1 = new UrlGenerator();
UrlGenerator urlGen2 = new UrlGenerator();
urlGen1.ResetIndex();
while (urlGen1.CreateUrl(urlIdPerm1, url1)) {
if (urlIdPerm1 == null) {
continue;
}
urlGen2.ResetIndex();
Console.WriteLine("**********************************************"
+ "**********\n");
try {
urlIdPerm2[0] = ((UrlIdentityPermission)(urlIdPerm1[0].Copy()));
if (urlIdPerm2 != null) {
Console.WriteLine(("Result of copy = " + urlIdPerm2[0].
ToString() + "\n"));
}
else {
Console.WriteLine("Result of copy is null. \n");
}
}
catch (System.Exception e) {
{
if (url1[0].Equals("")) {
Console.WriteLine("The target UrlIdentityPermission"
+ " is empty; copy failed.");
}
else {
Console.WriteLine(e);
}
}
continue;
}
}
return returnValue;
} //CopyDemo
// ToXml creates an XML encoding of the permission and
// its current state; FromXml
// reconstructs a permission with the specified state from
// the XML encoding.
private boolean ToFromXmlDemo()
{
boolean returnValue = true;
String url1[] = new String[1];
UrlIdentityPermission urlIdPerm1[] = new UrlIdentityPermission[1];
UrlIdentityPermission urlIdPerm2[] = new UrlIdentityPermission[1];
UrlGenerator urlGen1 = new UrlGenerator();
UrlGenerator urlGen2 = new UrlGenerator();
urlGen1.ResetIndex();
while (urlGen1.CreateUrl(urlIdPerm1, url1)) {
if (urlIdPerm1 == null) {
continue;
}
Console.WriteLine("********************************************"
+ "************\n");
urlGen2.ResetIndex();
try {
urlIdPerm2[0] = new UrlIdentityPermission(PermissionState.None);
urlIdPerm2[0].FromXml(urlIdPerm1[0].ToXml());
Console.WriteLine(("Result of ToFromXml = "
+ urlIdPerm2[0].ToString() + "\n"));
}
catch (System.Exception e) {
Console.WriteLine(("ToFromXml failed :"
+ urlIdPerm1.ToString() + e));
continue;
}
}
return returnValue;
} //ToFromXmlDemo
// Invoke all demos.
public boolean runDemo()
{
boolean ret = true;
boolean retTmp;
// Call IsSubsetOf demo.
retTmp = IsSubsetOfDemo();
if (retTmp) {
Console.get_Out().WriteLine("IsSubset demo completed "
+ "successfully.");
}
else {
Console.get_Out().WriteLine("IsSubset demo failed.");
}
ret = retTmp && ret;
// Call Union demo.
retTmp = UnionDemo();
if (retTmp) {
Console.get_Out().WriteLine("Union demo completed successfully.");
}
else {
Console.get_Out().WriteLine("Union demo failed.");
}
ret = retTmp && ret;
// Call Intersect demo.
retTmp = IntersectDemo();
if (retTmp) {
Console.get_Out().WriteLine("Intersect demo completed "
+ "successfully.");
}
else {
Console.get_Out().WriteLine("Intersect demo failed.");
}
ret = retTmp && ret;
// Call Copy demo.
retTmp = CopyDemo();
if (retTmp) {
Console.get_Out().WriteLine("Copy demo completed successfully.");
}
else {
Console.get_Out().WriteLine("Copy demo failed.");
}
ret = retTmp && ret;
// Call ToFromXml demo.
retTmp = ToFromXmlDemo();
if (retTmp) {
Console.get_Out().WriteLine("ToFromXml demo "
+ "completed successfully.");
}
else {
Console.get_Out().WriteLine("ToFromXml demo failed.");
}
ret = retTmp && ret;
return ret;
} //runDemo
// Test harness.
public static void main(String[] args)
{
try {
UrlIdentityPermissionDemo democase = new
UrlIdentityPermissionDemo();
boolean ret = democase.runDemo();
if (ret) {
Console.get_Out().WriteLine("UrlIdentity demo completed"
+ " successfully.");
Console.get_Out().WriteLine("Press the Enter key to exit.");
String consoleInput = Console.ReadLine();
Environment.set_ExitCode(100);
}
else {
Console.get_Out().WriteLine("UrlIdentity demo failed.");
Console.get_Out().WriteLine("Press the Enter key to exit.");
String consoleInput = Console.ReadLine();
Environment.set_ExitCode(101);
}
}
catch (System.Exception e) {
Console.get_Out().WriteLine("UrlIdentity demo failed.");
Console.WriteLine(e.ToString());
Console.get_Out().WriteLine("Press the Enter key to exit.");
String consoleInput = Console.ReadLine();
Environment.set_ExitCode(101);
}
} //main
} //UrlIdentityPermissionDemo
// This class generates UrlIdentityPermission objects.
class UrlGenerator
{
private String myUrl[] = {
"http://www.fourthcoffee.com/process/grind.htm",
"http://www.fourthcoffee.com/process/*",
"http://www.fourthcoffee.com/*",
"http://www.fourthcoffee.com/process/*",
"http://www.contoso.com/math.asmx"};
private int urlIndex = 0;
public UrlGenerator()
{
ResetIndex();
} //UrlGenerator
public void ResetIndex()
{
urlIndex = 0;
} //ResetIndex
// CreateUrl creates a UrlIdentityPermission.
public boolean CreateUrl(UrlIdentityPermission urlPerm[], String url[])
{
UrlIdentityPermission urlP = null;
if (urlIndex == myUrl.length) {
urlPerm[0] = new UrlIdentityPermission(PermissionState.None);
url[0] = "";
urlIndex++;
return true;
}
if (urlIndex > myUrl.length) {
urlPerm = null;
url[0] = "";
return false;
}
url[0] = myUrl[urlIndex++];
try {
urlP = new UrlIdentityPermission(url[0]);
urlPerm[0] = urlP;
return true;
}
catch (System.Exception e) {
Console.WriteLine(("Cannot create UrlIdentityPermission : "
+ url + " " + e));
urlPerm[0] = new UrlIdentityPermission(PermissionState.None);
url[0] = "";
return true;
}
} //CreateUrl
} //UrlGenerator
System.Security.CodeAccessPermission
System.Security.Permissions.UrlIdentityPermission
Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.
Caution