Added path field

lib/screens/onboarding/provider/connect.provider.dart

@@ -53,8 +53,8 @@ class Connect extends _$Connect {
     ref.notifyListeners();
   }
 
-  void validatePort(value) {
-    if (value != null && value != '') {
+  void validatePort(String value) {
+    if (value != '') {
       if (int.tryParse(value) != null && int.parse(value) <= 65535) {
         state.portError = null;
       } else {
@@ -65,6 +65,20 @@ class Connect extends _$Connect {
     ref.notifyListeners();
   }
 
+  void validatePath(String value) {
+    if (value == "") {
+      state.pathError = null;
+    } else {
+      if (Regexps.path.hasMatch(value) == true) {
+        state.pathError = null;
+      } else {
+        state.pathError = t.onboarding.invalidPath;
+      }
+    }
+    state.validValues = validValues();
+    ref.notifyListeners();
+  }
+
   void validateToken(String value) {
     if (value != "") {
       state.tokenError = null;
@@ -79,7 +93,9 @@ class Connect extends _$Connect {
     return state.tokenController.text != "" &&
         state.tokenError == null &&
         state.ipDomainController.text != "" &&
-        state.ipDomainError == null;
+        state.ipDomainError == null &&
+        state.pathError == null &&
+        state.portError == null;
   }
 }