public void FromXml_WrongVersion()
{
StorePermission sp = new StorePermission(PermissionState.None);
SecurityElement se = sp.ToXml();
se.Attributes.Remove("version");
se.Attributes.Add("version", "2");
sp.FromXml(se);
}
//</Snippet8>
// The following method is intended to demonstrate only the behavior of
// StorePermission class members,and not their practical usage. Most properties
// and methods in this class are used for the resolution and enforcement of
// security policy by the security infrastructure code.
private static void ShowMembers()
{
Console.WriteLine("Creating first permission with Flags = OpenStore.");
StorePermission sp1 = new StorePermission(StorePermissionFlags.OpenStore);
Console.WriteLine("Creating second permission with Flags = AllFlags.");
StorePermission sp2 = new StorePermission(StorePermissionFlags.AllFlags);
Console.WriteLine("Creating third permission as Unrestricted.");
//<Snippet9>
StorePermission sp3 = new StorePermission(PermissionState.Unrestricted);
//</Snippet9>
Console.WriteLine("Creating fourth permission with a permission state of none.");
StorePermission sp4 = new StorePermission(PermissionState.None);
//<Snippet3>
bool rc = sp2.IsSubsetOf(sp3);
Console.WriteLine("Is the permission with complete store access (AllFlags) a subset of \n" +
"\tthe permission with an Unrestricted permission state? " + (rc ? "Yes" : "No"));
rc = sp1.IsSubsetOf(sp2);
Console.WriteLine("Is the permission with OpenStore access a subset of the permission with \n" +
"\tcomplete store access (AllFlags)? " + (rc ? "Yes" : "No"));
//</Snippet3>
//<Snippet4>
rc = sp3.IsUnrestricted();
Console.WriteLine("Is the third permission unrestricted? " + (rc ? "Yes" : "No"));
//</Snippet4>
//<Snippet5>
Console.WriteLine("Copying the second permission to the fourth permission.");
sp4 = (StorePermission)sp2.Copy();
rc = sp4.Equals(sp2);
Console.WriteLine("Is the fourth permission equal to the second permission? " + (rc ? "Yes" : "No"));
//</Snippet5>
//<Snippet10>
Console.WriteLine("Creating the intersection of the second and first permissions.");
sp4 = (StorePermission)sp2.Intersect(sp1);
Console.WriteLine("Value of the Flags property is: " + sp4.Flags.ToString());
//</Snippet10>
//<Snippet6>
Console.WriteLine("Creating the union of the second and first permissions.");
sp4 = (StorePermission)sp2.Union(sp1);
Console.WriteLine("Result of the union of the second permission with the first: " + sp4.Flags);
//</Snippet6>
//<Snippet7>
Console.WriteLine("Using an XML roundtrip to reset the fourth permission.");
sp4.FromXml(sp2.ToXml());
rc = sp4.Equals(sp2);
Console.WriteLine("Does the XML roundtrip result equal the original permission? " + (rc ? "Yes" : "No"));
//</Snippet7>
}
public void FromXml_WrongTagCase()
{
StorePermission sp = new StorePermission(PermissionState.None);
SecurityElement se = sp.ToXml();
se.Tag = "IPERMISSION"; // instead of IPermission
sp.FromXml(se);
// note: normally IPermission classes (in corlib) DO care about the
// IPermission tag
}
public void FromXml_NoVersion()
{
StorePermission sp = new StorePermission(PermissionState.None);
SecurityElement se = sp.ToXml();
SecurityElement w = new SecurityElement(se.Tag);
w.AddAttribute("class", se.Attribute("class"));
sp.FromXml(w);
// version is optional (in this case)
}
public void FromXml_NoClass()
{
StorePermission sp = new StorePermission(PermissionState.None);
SecurityElement se = sp.ToXml();
SecurityElement w = new SecurityElement(se.Tag);
w.AddAttribute("version", se.Attribute("version"));
sp.FromXml(w);
// note: normally IPermission classes (in corlib) DO NOT care about
// attribute "class" name presence in the XML
}
public void FromXml_WrongClass()
{
StorePermission sp = new StorePermission(PermissionState.None);
SecurityElement se = sp.ToXml();
SecurityElement w = new SecurityElement(se.Tag);
w.AddAttribute("class", "Wrong" + se.Attribute("class"));
w.AddAttribute("version", se.Attribute("version"));
sp.FromXml(w);
// doesn't care of the class name at that stage
// anyway the class has already be created so...
}
public void ConstructorLevel_Deny_Unrestricted()
{
StorePermission p = new StorePermission(StorePermissionFlags.AllFlags);
Assert.AreEqual(StorePermissionFlags.AllFlags, p.Flags, "Flags");
Assert.IsTrue(p.IsUnrestricted(), "IsUnrestricted");
Assert.IsNotNull(p.Copy(), "Copy");
SecurityElement se = p.ToXml();
Assert.IsNotNull(se, "ToXml");
p.FromXml(se);
Assert.IsNotNull(p.Intersect(p), "Intersect");
Assert.IsTrue(p.IsSubsetOf(p), "IsSubsetOf");
Assert.IsNotNull(p.Union(p), "Union");
}
public void ConstructorState_Deny_Unrestricted()
{
StorePermission p = new StorePermission(PermissionState.None);
Assert.AreEqual(StorePermissionFlags.NoFlags, p.Flags, "Flags");
Assert.IsFalse(p.IsUnrestricted(), "IsUnrestricted");
SecurityElement se = p.ToXml();
Assert.IsNotNull(se, "ToXml");
p.FromXml(se);
Assert.IsTrue(p.IsSubsetOf(p), "IsSubsetOf");
// strange behaviour of Copy under MS fx 2.0 (returns null for NoFlags)
p.Copy();
p.Intersect(p);
p.Union(p);
}
public void PermissionState_None()
{
PermissionState ps = PermissionState.None;
StorePermission sp = new StorePermission(ps);
Assert.AreEqual(StorePermissionFlags.NoFlags, sp.Flags, "Flags");
Assert.IsFalse(sp.IsUnrestricted(), "IsUnrestricted");
SecurityElement se = sp.ToXml();
// only class and version are present
Assert.AreEqual("NoFlags", se.Attribute("Flags"), "Xml-Flags");
Assert.IsNull(se.Children, "Xml-Children");
StorePermission copy = (StorePermission)sp.Copy();
Assert.IsNull(copy, "Copy");
}
public void PermissionState_Unrestricted()
{
PermissionState ps = PermissionState.Unrestricted;
StorePermission sp = new StorePermission(ps);
Assert.AreEqual(StorePermissionFlags.AllFlags, sp.Flags, "Flags");
Assert.IsTrue(sp.IsUnrestricted(), "IsUnrestricted");
SecurityElement se = sp.ToXml();
Assert.IsNotNull(se.Attribute("Unrestricted"), "Xml-Unrestricted");
Assert.IsNull(se.Attribute("Level"), "Xml-Flags");
Assert.IsNull(se.Children, "Xml-Children");
StorePermission copy = (StorePermission)sp.Copy();
Assert.IsFalse(Object.ReferenceEquals(sp, copy), "ReferenceEquals");
Assert.AreEqual(sp.Flags, copy.Flags, "Copy Flags");
Assert.AreEqual(sp.IsUnrestricted(), copy.IsUnrestricted(), "IsUnrestricted ()");
}