namespace System.Security {
[Serializable]
+ [SecurityPermission (SecurityAction.InheritanceDemand, ControlEvidence = true, ControlPolicy = true)]
+ [ComVisible (true)]
+ [MonoTODO ("CAS support is experimental (and unsupported).")]
public abstract class CodeAccessPermission : IPermission, ISecurityEncodable, IStackWalk {
+
protected CodeAccessPermission ()
{
}
- [MonoTODO ("Imperative mode isn't supported")]
+ [MonoTODO ("CAS support is experimental (and unsupported). Imperative mode is not implemented.")]
public void Assert ()
{
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;
- if (denied.GetType () != this.GetType ())
- return true;
- return (Intersect (denied) == null);
- }
-
- internal bool CheckPermitOnly (CodeAccessPermission target)
- {
- if (target == null)
- return false;
- if (target.GetType () != this.GetType ())
- return false;
- return IsSubsetOf (target);
- }
-
public abstract IPermission Copy ();
- [MonoTODO ("Imperative Assert, Deny and PermitOnly aren't yet supported")]
public void Demand ()
{
// note: here we're sure it's a CAS demand
return;
// skip frames until we get the caller (of our caller)
- new PermissionSet (this).CasOnlyDemand (2);
+ new PermissionSet (this).CasOnlyDemand (3);
}
- [MonoTODO ("Imperative mode isn't supported")]
+ [MonoTODO ("CAS support is experimental (and unsupported). Imperative mode is not implemented.")]
public void Deny ()
{
new PermissionSet (this).Deny ();
}
-#if NET_2_0
[ComVisible (false)]
public override bool Equals (object obj)
{
CodeAccessPermission cap = (obj as CodeAccessPermission);
return (IsSubsetOf (cap) && cap.IsSubsetOf (this));
}
-#endif
public abstract void FromXml (SecurityElement elem);
-#if NET_2_0
[ComVisible (false)]
public override int GetHashCode ()
{
return base.GetHashCode ();
}
-#endif
public abstract IPermission Intersect (IPermission target);
return null;
}
- [MonoTODO ("Imperative mode isn't supported")]
+ [MonoTODO ("CAS support is experimental (and unsupported). Imperative mode is not implemented.")]
public void PermitOnly ()
{
new PermissionSet (this).PermitOnly ();
}
- [MonoTODO ("Imperative mode isn't supported")]
+ [MonoTODO ("CAS support is experimental (and unsupported). Imperative mode is not implemented.")]
public static void RevertAll ()
{
if (!SecurityManager.SecurityEnabled)
return;
-
- SecurityFrame sf = new SecurityFrame (1);
- bool revert = false;
- if ((sf.Assert != null) && !sf.Assert.DeclarativeSecurity) {
- revert = true;
- // TODO
- throw new NotSupportedException ("Currently only declarative Assert are supported.");
- }
- if ((sf.Deny != null) && !sf.Deny.DeclarativeSecurity) {
- revert = true;
- // TODO
- throw new NotSupportedException ("Currently only declarative Deny are supported.");
- }
- if ((sf.PermitOnly != null) && sf.PermitOnly.DeclarativeSecurity) {
- revert = true;
- // TODO
- 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 ("Imperative mode isn't supported")]
+ [MonoTODO ("CAS support is experimental (and unsupported). Imperative mode is not implemented.")]
public static void RevertAssert ()
{
if (!SecurityManager.SecurityEnabled)
return;
-
- SecurityFrame sf = new SecurityFrame (1);
- if ((sf.Assert != null) && !sf.Assert.DeclarativeSecurity) {
- // TODO
- 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 ("Imperative mode isn't supported")]
+ [MonoTODO ("CAS support is experimental (and unsupported). Imperative mode is not implemented.")]
public static void RevertDeny ()
{
if (!SecurityManager.SecurityEnabled)
return;
-
- SecurityFrame sf = new SecurityFrame (1);
- if ((sf.Deny != null) && !sf.Deny.DeclarativeSecurity) {
- // TODO
- 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 ("Imperative mode isn't supported")]
+ [MonoTODO ("CAS support is experimental (and unsupported). Imperative mode is not implemented.")]
public static void RevertPermitOnly ()
{
if (!SecurityManager.SecurityEnabled)
return;
-
- SecurityFrame sf = new SecurityFrame (1);
- if ((sf.PermitOnly != null) && sf.PermitOnly.DeclarativeSecurity) {
- // TODO
- 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
case PermissionState.None:
break;
case PermissionState.Unrestricted:
- if (!allowUnrestricted) {
- msg = Locale.GetText ("Unrestricted isn't not allowed for identity permissions.");
- throw new ArgumentException (msg, "state");
- }
+ // unrestricted permissions are possible for identiy permissions
break;
default:
msg = String.Format (Locale.GetText ("Invalid enum {0}"), state);
return (String.Compare (value, Boolean.TrueString, true, CultureInfo.InvariantCulture) == 0);
}
- internal bool ProcessFrame (SecurityFrame frame, ref Assembly current)
- {
- // however the "final" grant set is resolved by assembly, so
- // there's no need to check it every time (just when we're
- // changing assemblies between frames).
- if (frame.Assembly != current) {
- current = frame.Assembly;
- // 1. CheckDemand
- if (!SecurityManager.IsGranted (current, this)) {
- ThrowSecurityException (this, "Demand failed assembly permissions checks.",
- current, frame.Method, SecurityAction.Demand, this);
- }
- }
-
- // skip next steps if not Assert, Deny or PermitOnly are present
- if (!frame.HasStackModifiers)
- return false; // continue the stack walk
-
- // 2. CheckPermitOnly
- if (frame.PermitOnly != null) {
- foreach (IPermission p in frame.PermitOnly) {
- if (!CheckPermitOnly (p as CodeAccessPermission))
- ThrowSecurityException (this, "PermitOnly", current, frame.Method, SecurityAction.Demand, p);
- }
- }
-
- // 3. 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", current, frame.Method, SecurityAction.Demand, null);
- foreach (IPermission p in frame.Deny) {
- if (!CheckDeny (p as CodeAccessPermission))
- ThrowSecurityException (this, "Deny", current, frame.Method, SecurityAction.Demand, p);
- }
- }
-
- // 4. CheckAssert
- if (frame.Assert != null) {
- foreach (IPermission p in frame.Assert) {
- if (!CheckAssert (p as CodeAccessPermission)) {
- // FIXME: partial asserts
- return true; // stop the 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, Assembly a, MethodInfo mi, SecurityAction action, IPermission failed)
- {
- throw new SecurityException (Locale.GetText (message),
- a.GetName (), a.GrantedPermissionSet,
- a.DeniedPermissionSet, mi, action, demanded,
- failed, a.Evidence);
- }
}
}
projects / mono.git / blobdiff