internal bool CheckDemand(CodeAccessPermission target)
{
if (target == null)
{
return(false);
}
if (target.GetType() != this.GetType())
{
return(false);
}
return(IsSubsetOf(target));
}
internal bool CheckAssert(CodeAccessPermission asserted)
{
if (asserted == null)
{
return(false);
}
if (asserted.GetType() != this.GetType())
{
return(false);
}
return(IsSubsetOf(asserted));
}
// Returns true if OK to return from check, or false if
// permission-specific information must be checked.
internal static bool CheckUnrestricted(IUnrestrictedPermission grant, CodeAccessPermission demand)
{
// We return true here because we're defining a demand of null to
// automatically pass.
if (demand == null)
{
return(true);
}
if (demand.GetType() != grant.GetType())
{
return(false);
}
if (grant.IsUnrestricted())
{
return(true);
}
if (((IUnrestrictedPermission)demand).IsUnrestricted())
{
throw new SecurityException(String.Format(Environment.GetResourceString("Security_Generic"), demand.GetType().FullName), demand.GetType(), demand.ToXml().ToString());
}
return(false);
}
internal bool CheckDeny(CodeAccessPermission denied)
{
if (denied == null)
{
return(true);
}
Type t = denied.GetType();
if (t != this.GetType())
{
return(true);
}
IPermission inter = Intersect(denied);
if (inter == null)
{
return(true);
}
// sadly that's not enough :( at this stage we must also check
// if an empty (PermissionState.None) is a subset of the denied
// (which is like a empty intersection looks like for flag based
// permissions, e.g. AspNetHostingPermission).
return(denied.IsSubsetOf(PermissionBuilder.Create(t)));
}