1 files changed, 16 insertions, 2 deletions

diff --git a/charakterin.go b/charakterin.go
index 2878f1f..413d698 100644
--- a/charakterin.go
+++ b/charakterin.go
@@ -24,6 +24,11 @@ const (
         EmailAlreadyRegistered = "pq: email_already_registered"
 )
 
+// external services
+const (
+        ANILIST = "Anilist"
+)
+
 // Renderer wird verwendet, um die Routen (bspw. Login-Route) zu rendern. Damit bleibt Charakterin selbst ohne Template.
 type Renderer interface {
         RenderLoginPage(w http.ResponseWriter, data map[string]interface{})
@@ -401,9 +406,15 @@ func (c *Charakterin) DisplayAPICouplePage(w http.ResponseWriter, r *http.Reques
                 http.Error(w, "403", http.StatusForbidden)
                 return
         }
+
+        service := ps.ByName("type")
+        if service != ANILIST {
+                http.Error(w, "Ungueltiger Service", http.StatusNotFound)
+                return
+        }
         data := make(map[string]interface{})
         data["user"] = user
-        data["name"] = ps.ByName("type")
+        data["name"] = service
         c.renderer.RenderAPICouplePage(w, data)
 }
 
@@ -419,8 +430,11 @@ func (c *Charakterin) CoupleAPI(w http.ResponseWriter, r *http.Request, ps httpr
                 return
         }
         switch ps.ByName("type") {
-        case "Anilist":
+        case ANILIST:
                 err = user.AnilistClient.CoupleByPin(body["code"][0])
+                break
+        default:
+                err = errors.New("Ungueltiger Service")
         }
         if err != nil {
                 data := make(map[string]interface{})