/// <summary>
/// Determines whether the action method selection is valid for the specified
/// controller context.
/// </summary>
/// <param name="controllerContext">The controller context.</param>
/// <param name="methodInfo">Information about the action method.</param>
/// <returns>
/// true if the <see cref="ControllerContext.RouteData"/> has values for
/// all parameters decorated with <see cref="FromRouteAttribute"/>, and if all keys
/// in <see cref="ControllerContext.RouteData"/> match any of the decorated parameters,
/// excluding controller, action and other route parameters that do not map to action method parameters.
/// </returns>
public override bool IsValidForRequest(ControllerContext controllerContext, MethodInfo methodInfo)
{
var routeValues = new RouteValueDictionary(controllerContext.RouteData.Values);
routeValues.Remove("controller");
routeValues.Remove("action");
CodeRoute codeRoute = controllerContext.RouteData.Route as CodeRoute;
if (codeRoute != null)
{
for (int i = 0; i < codeRoute.NonActionParameterTokens.Count; i++)
{
routeValues.Remove(codeRoute.NonActionParameterTokens[i]);
}
}
#pragma warning disable 0618
string[] parameters = actionDataCache.GetOrAdd(methodInfo, (m) =>
(from p in m.GetParameters()
where p.IsDefined(typeof(MvcCodeRouting.FromRouteAttribute), inherit: true)
select p.Name).ToArray()
);
#pragma warning restore 0618
return(parameters.All(p => routeValues.Keys.Contains(p, StringComparer.OrdinalIgnoreCase)) &&
routeValues.Keys.All(k => parameters.Contains(k, StringComparer.OrdinalIgnoreCase)));
}
protected override Type GetControllerType(RequestContext requestContext, string controllerName)
{
CodeRoute codeRoute = requestContext.RouteData.Route as CodeRoute;
if (codeRoute == null ||
codeRoute.ControllerTypes == null ||
codeRoute.ControllerTypes.Count == 0)
{
return(base.GetControllerType(requestContext, controllerName));
}
Type controllerType;
if (codeRoute.ControllerTypes.TryGetValue(controllerName, out controllerType))
{
return(controllerType);
}
return(null);
}
