ogcp: make client name field mandatory in client form

Add InputRequired validator to the name field of the
ClientDetailsForm.
Validate name value in the POST function.

ogcp/forms/action_forms.py

@@ -126,7 +126,8 @@ class FolderForm(FlaskForm):
 
 class ClientDetailsForm(FlaskForm):
     server = HiddenField()
-    name = StringField(label=_l('Name'))
+    name = StringField(label=_l('Name'),
+                       validators=[InputRequired()])
     ip = StringField(label=_l('IP'),
                      validators=[InputRequired()])
     mac = StringField(label=_l('MAC'),

ogcp/views.py

@@ -1567,6 +1567,12 @@ def action_client_add():
             flash(form.errors, category='error')
             return redirect(url_for('scopes'))
 
+        client_name = form.name.data
+
+        if not client_name:
+            flash(_('Invalid empty client name'), category='error')
+            return redirect(url_for("scopes"))
+
         try:
             ipaddress.ip_address(form.ip.data)
         except ValueError as e: