Fix empty contact code string errors

Signed-off-by: Vitaliy Vlasov <siphiuel@gmail.com>

src/status_im/ethereum/ens.cljs

@@ -127,6 +127,13 @@
   [x y]
   (str "0x04" x y))
 
+(defn valid-eth-name-prefix?
+  [prefix]
+  (not
+   (or (string/blank? prefix)
+       (string/ends-with? prefix ".")
+       (string/includes? prefix ".."))))
+
 (defn is-valid-eth-name?
   [ens-name]
   (and ens-name

src/status_im/ui/screens/add_new/new_chat/events.cljs

@@ -20,7 +20,8 @@
      (merge {:db (assoc db
                         :contacts/new-identity       new-identity
                         :contacts/new-identity-error (db/validate-pub-key db new-identity))}
-            (when-not is-public-key?
+            (when (and (not is-public-key?)
+                       (ens/valid-eth-name-prefix? new-identity))
               (let [chain (ethereum/chain-keyword db)]
                 {:resolve-public-key {:registry (get ens/ens-registries chain)
                                       :ens-name (if (ens/is-valid-eth-name? new-identity)

src/status_im/ui/screens/add_new/new_chat/views.cljs

@@ -24,6 +24,7 @@
 
 (views/defview new-chat []
   (views/letsubs [contacts      [:contacts/active]
+                  new-identity  [:contacts/new-identity]
                   error-message [:new-identity-error]]
     [react/keyboard-avoiding-view {:style {:flex 1}}
      [status-bar/status-bar]
@@ -32,7 +33,7 @@
       [react/view add-new.styles/new-chat-input-container
        [react/text-input {:ref                 (fn [v] (js/setTimeout #(reset! tw (if v "100%" "95%")) 100))
                           :on-change-text      #(re-frame/dispatch [:new-chat/set-new-identity %])
-                          :on-submit-editing   #(when-not error-message
+                          :on-submit-editing   #(when (and new-identity (not error-message))
                                                   (re-frame/dispatch [:contact.ui/contact-code-submitted]))
                           :placeholder         (i18n/label :t/enter-contact-code)
                           :style               (add-new.styles/input @tw)