fix: set response header Access-Control-Allow-Private-Network to true (…

…#159)

This is a new cors header that is required when you set the chrome flag
'Experimental Web Platform features'. We may use that flag for bluetooth
etc. This header isn't yet supported by our CORS lib etc, so this seems
to be an OK way of adding it.

Dockerfile

@@ -17,7 +17,7 @@ RUN apt-get update && \
 RUN git clone https://github.com/pi-top/pi-topOS-Apt-Source.git && \
     cd pi-topOS-Apt-Source && \
     cp keys/* /usr/share/keyrings/ && \
-    cp sources/pi-top-os.list /etc/apt/sources.list.d/ && \
+    usr/lib/pi-top-os-apt-installer/pi-top-apt-source-manager install pi-top-os && \
     apt-get update && \
     rm -rf /pi-topOS-Apt-Source
 

further_link/__main__.py

@@ -43,6 +43,11 @@ async def create_bluetooth_app() -> Optional[BluetoothServer]:
 async def create_web_app():
     app = web.Application()
 
+    async def set_extra_cors_headers(request, response):
+        response.headers["Access-Control-Allow-Private-Network"] = "true"
+
+    app.on_response_prepare.append(set_extra_cors_headers)
+
     cors = aiohttp_cors.setup(
         app,
         defaults={

tests/e2e/test_http.py

@@ -13,6 +13,7 @@
 async def test_status(http_client):
     response = await http_client.get(STATUS_PATH)
     assert response.status == 200
+    assert response.headers["Access-Control-Allow-Private-Network"] == "true"
     assert await response.text() == "OK"