network: do not ask psk for open networks

ks_includes/sdbus_nm.py

@@ -52,6 +52,8 @@ def get_encryption(flags):
         encryption += "WPA-PSK "
     if flags & NM_802_11_AP_SEC_KEY_MGMT_802_1X:
         encryption += "802.1x "
+    if not encryption:
+        encryption += "Open"
     return encryption
 
 
@@ -133,6 +135,11 @@ class SdbusNm:
     def is_known(self, ssid):
         return any(net['SSID'] == ssid for net in self.get_known_networks())
 
+    def is_open(self, ssid):
+        for network in self.get_networks():
+            if network["SSID"] == ssid:
+                return network["security"] == "Open"
+
     def get_ip_address(self):
         active_connection_path = self.nm.primary_connection
         if not active_connection_path or active_connection_path == '/':

panels/network.py

@@ -195,7 +195,7 @@ class Panel(ScreenPanel):
 
     def connect_network(self, widget, ssid, showadd=True):
         self.deactivate()
-        if showadd and not self.sdbus_nm.is_known(ssid):
+        if showadd and not self.sdbus_nm.is_known(ssid) and not self.sdbus_nm.is_open(ssid):
             self.show_add_network(widget, ssid)
             self.activate()
             return