new PermissionSet (this).Assert ();
}
- internal bool CheckAssert (CodeAccessPermission asserted)
- {
- if (asserted == null)
- return false;
- if (asserted.GetType () != this.GetType ())
- return false;
- return IsSubsetOf (asserted);
- }
-
- internal bool CheckDemand (CodeAccessPermission target)
- {
- if (target == null)
- return false;
- if (target.GetType () != this.GetType ())
- return false;
- return IsSubsetOf (target);
- }
-
- 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));
- }
-
- internal bool CheckPermitOnly (CodeAccessPermission target)
- {
- if (target == null)
- return false;
- if (target.GetType () != this.GetType ())
- return false;
- return IsSubsetOf (target);
- }
-
public abstract IPermission Copy ();
public void Demand ()
{
if (!SecurityManager.SecurityEnabled)
return;
-
- SecurityFrame sf = new SecurityFrame (1);
- bool revert = false;
- if ((sf.Assert != null) && !sf.Assert.DeclarativeSecurity) {
- revert = true;
- throw new NotSupportedException ("Currently only declarative Assert are supported.");
- }
- if ((sf.Deny != null) && !sf.Deny.DeclarativeSecurity) {
- revert = true;
- throw new NotSupportedException ("Currently only declarative Deny are supported.");
- }
- if ((sf.PermitOnly != null) && !sf.PermitOnly.DeclarativeSecurity) {
- revert = true;
- throw new NotSupportedException ("Currently only declarative PermitOnly are supported.");
- }
-
- if (!revert) {
- string msg = Locale.GetText ("No stack modifiers are present on the current stack frame.");
- // FIXME: we don't (yet) support imperative stack modifiers
- msg += Environment.NewLine + "Currently only declarative stack modifiers are supported.";
- throw new ExecutionEngineException (msg);
- }
+ throw new NotImplementedException ();
}
[MonoTODO ("CAS support is experimental (and unsupported). Imperative mode is not implemented.")]
{
if (!SecurityManager.SecurityEnabled)
return;
-
- SecurityFrame sf = new SecurityFrame (1);
- if ((sf.Assert != null) && !sf.Assert.DeclarativeSecurity) {
- throw new NotSupportedException ("Currently only declarative Assert are supported.");
- } else {
- // we can't revert declarative security (or an empty frame) imperatively
- ThrowExecutionEngineException (SecurityAction.Assert);
- }
+ throw new NotImplementedException ();
}
[MonoTODO ("CAS support is experimental (and unsupported). Imperative mode is not implemented.")]
{
if (!SecurityManager.SecurityEnabled)
return;
-
- SecurityFrame sf = new SecurityFrame (1);
- if ((sf.Deny != null) && !sf.Deny.DeclarativeSecurity) {
- throw new NotSupportedException ("Currently only declarative Deny are supported.");
- } else {
- // we can't revert declarative security (or an empty frame) imperatively
- ThrowExecutionEngineException (SecurityAction.Deny);
- }
+ throw new NotImplementedException ();
}
[MonoTODO ("CAS support is experimental (and unsupported). Imperative mode is not implemented.")]
{
if (!SecurityManager.SecurityEnabled)
return;
-
- SecurityFrame sf = new SecurityFrame (1);
- if ((sf.PermitOnly != null) && sf.PermitOnly.DeclarativeSecurity) {
- throw new NotSupportedException ("Currently only declarative PermitOnly are supported.");
- } else {
- // we can't revert declarative security (or an empty frame) imperatively
- ThrowExecutionEngineException (SecurityAction.PermitOnly);
- }
+ throw new NotImplementedException ();
}
// Internal helpers methods
return (String.Compare (value, Boolean.TrueString, true, CultureInfo.InvariantCulture) == 0);
}
- internal bool ProcessFrame (SecurityFrame frame)
- {
- // 1. CheckPermitOnly
- if (frame.PermitOnly != null) {
- // the demanded permission must be in one of the permitted...
- bool permit = frame.PermitOnly.IsUnrestricted ();
- if (!permit) {
- // check individual permissions
- foreach (IPermission p in frame.PermitOnly) {
- if (CheckPermitOnly (p as CodeAccessPermission)) {
- permit = true;
- break;
- }
- }
- }
- if (!permit) {
- // ...or else we throw
- ThrowSecurityException (this, "PermitOnly", frame, SecurityAction.Demand, null);
- }
- }
-
- // 2. CheckDeny
- if (frame.Deny != null) {
- // special case where everything is denied (i.e. no child to be processed)
- if (frame.Deny.IsUnrestricted ())
- ThrowSecurityException (this, "Deny", frame, SecurityAction.Demand, null);
- foreach (IPermission p in frame.Deny) {
- if (!CheckDeny (p as CodeAccessPermission))
- ThrowSecurityException (this, "Deny", frame, SecurityAction.Demand, p);
- }
- }
-
- // 3. CheckAssert
- if (frame.Assert != null) {
- if (frame.Assert.IsUnrestricted ())
- return true; // remove permission and continue stack walk
- foreach (IPermission p in frame.Assert) {
- if (CheckAssert (p as CodeAccessPermission)) {
- return true; // remove permission and continue stack walk
- }
- }
- }
-
- // continue the stack walk
- return false;
- }
-
internal static void ThrowInvalidPermission (IPermission target, Type expected)
{
string msg = Locale.GetText ("Invalid permission type '{0}', expected type '{1}'.");
msg = String.Format (msg, target.GetType (), expected);
throw new ArgumentException (msg, "target");
}
-
- internal static void ThrowExecutionEngineException (SecurityAction stackmod)
- {
- string msg = Locale.GetText ("No {0} modifier is present on the current stack frame.");
- // FIXME: we don't (yet) support imperative stack modifiers
- msg += Environment.NewLine + "Currently only declarative stack modifiers are supported.";
- throw new ExecutionEngineException (String.Format (msg, stackmod));
- }
-
- internal static void ThrowSecurityException (object demanded, string message, SecurityFrame frame,
- SecurityAction action, IPermission failed)
- {
-#if NET_2_1
- throw new SecurityException (message);
-#else
- Assembly a = frame.Assembly;
- throw new SecurityException (Locale.GetText (message),
- a.UnprotectedGetName (), a.GrantedPermissionSet,
- a.DeniedPermissionSet, frame.Method, action, demanded,
- failed, a.UnprotectedGetEvidence ());
-#endif
- }
}
}
projects / mono.git / blobdiff