verify if pr has expired

gui/qt/main_window.py

@@ -1270,10 +1270,13 @@ class ElectrumWindow(QMainWindow):
         pr = PaymentRequest(self.config)
         pr.read_file(key)
         pr.domain = domain
-        pr.verify()
         self.gui_object.payment_request = pr
         self.prepare_for_payment_request()
-        self.payment_request_ok()
+        if pr.verify():
+            self.payment_request_ok()
+        else:
+            self.payment_request_error()
+            
 
     def create_invoice_menu(self, position):
         item = self.invoices_list.itemAt(position)

lib/paymentrequest.py

@@ -259,9 +259,9 @@ class PaymentRequest:
 
         self.payment_url = self.details.payment_url
 
-        #if self.has_expired():
-        #    self.error = "ERROR: Payment Request has Expired."
-        #    return False
+        if self.has_expired():
+            self.error = "ERROR: Payment Request has Expired."
+            return False
 
         return True