private async Task <InvokeResponse> OnInvoke(object link, string method, object[] args)
{
var user = _authenticationService != null ? await _authenticationService.GetPrincipalAsync(Context.ConnectionId) : null;
var type = link.GetType();
var authorized = await AuthorizationHelper.AuthorizeAsync(type, user, _authorizationService);
if (!authorized)
{
return(new InvokeResponse(StatusCodes.Status403Forbidden));
}
var name = _componentsService.GetComponentName(type);
var methodInfo = _componentsService.GetMethodInfo(name, $"{method}{ComponentsService.Delimiter}{args?.Length ?? 0}");
if (methodInfo == null)
{
return(new InvokeResponse(StatusCodes.Status404NotFound));
}
authorized = await AuthorizationHelper.AuthorizeAsync(methodInfo, user, _authorizationService);
if (!authorized)
{
return(new InvokeResponse(StatusCodes.Status403Forbidden));
}
var returnType = methodInfo.ReturnType;
var parameters = methodInfo.GetParameters();
if (args != null)
{
for (int j = 0; j < args.Length; ++j)
{
args[j] = Convert(args[j], parameters[j].ParameterType);
}
}
if (returnType == typeof(void))
{
// void Method(T1,...,Tn)
methodInfo.Invoke(link, args);
return(new InvokeResponse(StatusCodes.Status200OK));
}
if (returnType == typeof(Task))
{
// Task Method(T1,...,Tn) => {...}
var task = (Task)methodInfo.Invoke(link, args);
await task;
return(new InvokeResponse(StatusCodes.Status200OK));
}
if (returnType.GetTypeInfo().BaseType == typeof(Task))
{
// Task<TResult> Method(T1,...,Tn)
dynamic task = methodInfo.Invoke(link, args);
await task;
return(new InvokeResponse(StatusCodes.Status200OK, task.Result, true));
}
// TResult Method(T1,...,Tn)
var result = methodInfo.Invoke(link, args);
return(new InvokeResponse(StatusCodes.Status200OK, result, true));
}
public async Task <bool> AddStateAsync(string name, string fullname, IViewModel viewModel, IPrincipal user)
{
this.States.Add(fullname, viewModel);
if (!this.Methods.ContainsKey(name))
{
this.Methods.Add(name, _componentsService.GetMethodNames(name));
}
if (viewModel.Components != null)
{
foreach (var component in viewModel.Components)
{
if (component.Type != null)
{
var authorized = await AuthorizationHelper.AuthorizeAsync(component.Type, user, _authorizationService);
if (!authorized)
{
return(false);
}
}
var childName = component.Type != null
? _componentsService.GetComponentName(component.Type)
: component.Name;
var childFullName = $"{fullname}.{childName}";
if (component.Id != null)
{
childFullName += $"${component.Id}";
}
AddAssets(childName);
if (component.Type != null)
{
var link = (IInternalDirectLink <ViewModel>)_provider.GetService(component.Type);
var args = component.Args ?? Array.Empty <object>();
var childViewModel = CreateViewModel(link, args, childName);
var succeeded = await AddStateAsync(childName, childFullName, childViewModel, user);
if (!succeeded)
{
return(false);
}
}
else
{
if (component.State != null)
{
States.Add(childFullName, component.State);
}
}
}
}
return(true);
}
private async Task <DirectLinkData> GetDataAsync(string path, DirectLinkContext context)
{
var name = _componentsService.GetComponentName(_entryType);
var fullname = name;
var data = new DirectLinkData(name, _provider, _authorizationService, _componentsService);
var authorized = await AuthorizationHelper.AuthorizeAsync(_entryType, context.User, _authorizationService);
if (!authorized)
{
data.IsAuthorized = false;
data.Title = context.Title;
return(data);
}
var link = (IInternalDirectLink <ViewModel>)_provider.GetService(_entryType);
var args = Array.Empty <object>();
var viewModel = data.CreateViewModel(link, args, name);
data.AddAssets(name);
await data.AddStateAsync(name, fullname, viewModel, context.User);
var idx = path.IndexOf('#');
if (idx >= 0)
{
path = path.Substring(0, idx);
}
var routedPath = "";
context.PathBase = "";
foreach (var pathBase in _pathBases)
{
if (path.StartsWith(pathBase))
{
context.PathBase = pathBase;
routedPath = pathBase;
path = path.Substring(pathBase.Length, path.Length - pathBase.Length);
}
}
var routes = Routes.Get(_entryType);
if (routes == null)
{
data.IsRouted = true;
data.Title = context.Title;
return(data);
}
var restPath = path;
while (true)
{
args = null;
Route nextRoute = null;
foreach (var route in routes)
{
if (route.Regex == null)
{
if (restPath.StartsWith(route.Template) || (restPath == "" || restPath == "/") && route.Default)
{
nextRoute = route;
args = nextRoute.Args;
if (route.Default)
{
routedPath += restPath;
restPath = "";
}
else
{
routedPath += route.Template;
restPath = restPath.Substring(route.Template.Length);
}
break;
}
}
else
{
var m = route.Regex.Match(restPath);
if (!m.Success)
{
continue;
}
if (m.Groups.Count - 1 != route.Parameters.Count)
{
break;
}
var values = m.Groups.Skip(1).Select(p => p.Value).ToArray();
if (RouteTypesHelper.TryGetArgs(route.Parameters, values, ref args))
{
if (route.Args != null)
{
args = args.Concat(route.Args).ToArray();
}
nextRoute = route;
routedPath += m.Groups[0];
restPath = restPath.Substring(m.Value.Length);
break;
}
}
}
if (nextRoute == null)
{
break;
}
var routerViewModel = (RouterViewModel)viewModel;
routerViewModel.OnRouted(nextRoute);
name = nextRoute.Type != null
? _componentsService.GetComponentName(nextRoute.Type)
: nextRoute.Name;
fullname += $".{name}";
routerViewModel.Component = new RouteComponent(name, fullname);
data.AddAssets(name);
if (nextRoute.Type != null)
{
authorized = await AuthorizationHelper.AuthorizeAsync(nextRoute.Type, context.User, _authorizationService);
if (!authorized)
{
data.IsAuthorized = false;
break;
}
link = (IInternalDirectLink <ViewModel>)_provider.GetService(nextRoute.Type);
args = args ?? Array.Empty <object>();
viewModel = data.CreateViewModel(link, args, name);
var succeeded = await data.AddStateAsync(name, fullname, viewModel, context.User);
if (!succeeded)
{
data.IsAuthorized = false;
break;
}
routes = Routes.Get(nextRoute.Type);
if (routes == null)
{
if (restPath == "/")
{
routedPath += "/";
}
break;
}
}
else
{
if (nextRoute.State != null)
{
data.States.Add(fullname, nextRoute.State);
}
else
{
if (args == null)
{
data.States.Add(fullname, new Dictionary <string, object> {
{ "args", null }
});
}
else
{
var values = new Dictionary <string, object>();
for (int i = 0; i < nextRoute.Parameters.Count; ++i)
{
values.Add(nextRoute.Parameters[i].Name, args[i]);
}
data.States.Add(fullname, new Dictionary <string, object> {
{ "args", values }
});
}
}
if (restPath == "/")
{
routedPath += "/";
}
break;
}
}
data.IsRouted = routedPath == context.PathBase + path;
data.Title = context.Title;
return(data);
}
