UI: shorten default rules name

Default rules name can be extremely long when the rule is of type list.
It still will be in some cases, but should work in most cases.

closes #37

ui/opensnitch/dialogs/prompt.py

@@ -361,6 +361,16 @@ def _on_apply_clicked(self):
         self._default_action = self.ACTION_ALLOW
         self._send_rule()
 
+    def _get_rule_name(self):
+        rule_temp_name = slugify("%s %s" % (self._rule.action, self._rule.duration))
+        if self._ischeckAdvanceded:
+            rule_temp_name = "%s-list" % rule_temp_name
+        else:
+            rule_temp_name = "%s-simple" % rule_temp_name
+        rule_temp_name = slugify("%s %s" % (rule_temp_name, self._rule.operator.data))
+
+        return rule_temp_name
+
     def _send_rule(self):
         self._cfg.setSettings("promptDialog/geometry", self.saveGeometry())
         self._rule = ui_pb2.Rule(name="user.choice")
@@ -373,25 +383,29 @@ def _send_rule(self):
         what_idx = self.whatCombo.currentIndex()
         self._rule.operator.type, self._rule.operator.operand, self._rule.operator.data = self._get_combo_operator(self.whatCombo, what_idx)
 
+        rule_temp_name = self._get_rule_name()
+
         # TODO: move to a method
         data=[]
         if self._ischeckAdvanceded and self.checkDstIP.isChecked() and self.whatCombo.itemData(what_idx) != "dst_ip":
             _type, _operand, _data = self._get_combo_operator(self.whatIPCombo, self.whatIPCombo.currentIndex())
             data.append({"type": _type, "operand": _operand, "data": _data})
+            rule_temp_name = slugify("%s %s" % (rule_temp_name, _data))
 
         if self._ischeckAdvanceded and self.checkDstPort.isChecked() and self.whatCombo.itemData(what_idx) != "dst_port":
             data.append({"type": "simple", "operand": "dest.port", "data": str(self._con.dst_port)})
 
         if self._ischeckAdvanceded and self.checkUserID.isChecked() and self.whatCombo.itemData(what_idx) != "user_id":
             data.append({"type": "simple", "operand": "user.id", "data": str(self._con.user_id)})
+            rule_temp_name = slugify("%s %s" % (rule_temp_name, str(self._con.user_id)))
 
         if self._ischeckAdvanceded:
             data.append({"type": self._rule.operator.type, "operand": self._rule.operator.operand, "data": self._rule.operator.data})
             self._rule.operator.data = json.dumps(data)
             self._rule.operator.type = "list"
             self._rule.operator.operand = ""
 
-        self._rule.name = slugify("%s %s %s" % (self._rule.action, self._rule.operator.type, self._rule.operator.data))
+        self._rule.name = rule_temp_name
 
         self.hide()
         if self._ischeckAdvanceded: