Add forget all option for removing connections

Author: maggie44

README.md

@@ -65,8 +65,16 @@ Check whether your device is connected to a Wi-Fi hotspot and whether there is i
 
 ### http://your-device:9090/v1/forget
 
-Disconnect from the access point you earlier connected to with this app and forget the connection so it will not automatically reconnect on next launch of your device.
-#### GET
+Disconnect from an access point and forget the connection so it will not automatically reconnect on next launch of your device.
+
+When passing `"all_networks": false` this endpoint will only touch Wi-Fi connections set up using this app. If you pass `"all_networks": true` it will remove all Wi-Fi connections from the device. This is useful if you have set up a Wi-Fi connection with another app and need to clear out connections to allow Py-WiFi-Connect to manage connections. 
+
+#### POST
+````
+{
+    "all_networks": false
+}
+````
 
 #### Response status 202
 Requests are returned immediately and then the process is executed. Otherwise users would be disconnected before they were able to receive the returned response. 

src/common/wifi.py

@@ -110,7 +110,6 @@ def connect(conn_type=config.type_hotspot,
 
         # Connect
         NetworkManager.NetworkManager.ActivateConnection(conn, dev, "/")
-        logger.info("Activated connection.")
 
         # Wait for ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
         logger.info("Waiting for connection to become active...")
@@ -122,7 +121,7 @@ def connect(conn_type=config.type_hotspot,
                 break
 
         if dev.State == NetworkManager.NM_DEVICE_STATE_ACTIVATED:
-            logger.info("Connection is live.")
+            logger.info("Connected.")
             return True
         # If the current attempt is not already a hotspot attempt
         elif conn_type != config.type_hotspot:
@@ -141,16 +140,26 @@ def connect(conn_type=config.type_hotspot,
             raise WifiConnectionFailed
 
 
-def forget(create_new_hotspot=False):
+def forget(create_new_hotspot=False, all_networks=False):
     # Find and delete the hotspot connection
     try:
         connections = NetworkManager.Settings.ListConnections()
-        connections = dict([(x.GetSettings()['connection']['id'], x)
-                            for x in connections])
 
-        if config.ap_name in connections:
-            conn = connections[config.ap_name]
-            conn.Delete()
+        if all_networks:
+            for connection in connections:
+                if connection.GetSettings()["connection"]["type"] \
+                        == "802-11-wireless":
+                    # Delete the identified connection
+                    network_id = connection.GetSettings()["connection"]["id"]
+                    connection.Delete()
+                    logger.info(f"Deleted connection: {network_id}")
+        else:
+            connection_ids = \
+                dict([(x.GetSettings()['connection']['id'], x)
+                     for x in connections])
+            if config.ap_name in connection_ids:
+                connection_ids[config.ap_name].Delete()
+                logger.info(f"Deleted connection: {config.ap_name}")
 
         if create_new_hotspot:
             refresh_networks()

src/resources/wifi_routes.py

@@ -43,16 +43,26 @@ def get(self):
 
 
 class wifi_forget(Resource):
-    def get(self):
+    def post(self):
         # If the device is not connected to a wifi network
         if not check_wifi_status():
             return {'message': 'Device is already disconnected.'}, 409
 
+        # Check the all_networks boolean is valid
+        if (not request.get_json() or
+            'all_networks' not in request.get_json()
+                or type(request.get_json()['all_networks']) is not bool):
+            return {'message': "all_networks boolean missing or is not "
+                               "a boolean."}, 202
+
         # Use threading so the response can be returned before the user is
         # disconnected.
         wifi_forget_thread = threading.Thread(target=forget,
                                               kwargs={'create_new_hotspot':
-                                                      True})
+                                                      True,
+                                                      'all_networks':
+                                                      request.get_json()
+                                                      ['all_networks']})
 
         wifi_forget_thread.start()