cm

Former-commit-id: 8f99121b81dc76c04d5910117885d9286873f26c

mvc2/session_controller.go

@@ -0,0 +1,47 @@
+package mvc2
+
+import (
+	"github.com/kataras/iris/context"
+	"github.com/kataras/iris/sessions"
+	"reflect"
+
+	"github.com/kataras/golog"
+)
+
+var defaultManager = sessions.New(sessions.Config{})
+
+// SessionController is a simple `Controller` implementation
+// which requires a binded session manager in order to give
+// direct access to the current client's session via its `Session` field.
+type SessionController struct {
+	C
+
+	Manager *sessions.Sessions
+	Session *sessions.Session
+}
+
+// OnActivate called, once per application lifecycle NOT request,
+// every single time the dev registers a specific SessionController-based controller.
+// It makes sure that its "Manager" field is filled
+// even if the caller didn't provide any sessions manager via the `app.Controller` function.
+func (s *SessionController) OnActivate(ca *ControllerActivator) {
+	if !ca.Engine.BindTypeExists(reflect.TypeOf(defaultManager)) {
+		ca.Engine.Bind(defaultManager)
+		golog.Warnf(`MVC SessionController: couldn't find any "*sessions.Sessions" bindable value to fill the "Manager" field, 
+therefore this controller is using the default sessions manager instead.
+Please refer to the documentation to learn how you can provide the session manager`)
+	}
+}
+
+// BeginRequest calls the Controller's BeginRequest
+// and tries to initialize the current user's Session.
+func (s *SessionController) BeginRequest(ctx context.Context) {
+	s.C.BeginRequest(ctx)
+	if s.Manager == nil {
+		ctx.Application().Logger().Errorf(`MVC SessionController: sessions manager is nil, report this as a bug 
+because the SessionController should predict this on its activation state and use a default one automatically`)
+		return
+	}
+
+	s.Session = s.Manager.Start(ctx)
+}