Fix support Hass v2021.7

custom_components/dataplicity/__init__.py

@@ -6,6 +6,8 @@
 from homeassistant.requirements import async_process_requirements
 from homeassistant.util import package
 
+from . import utils
+
 DOMAIN = 'dataplicity'
 
 
@@ -48,6 +50,8 @@ async def hass_stop(event):
 
     hass.bus.async_listen_once(EVENT_HOMEASSISTANT_STOP, hass_stop)
 
+    await utils.fix_middleware(hass)
+
     return True
 
 

custom_components/dataplicity/utils.py

@@ -1,6 +1,8 @@
 import logging
+from ipaddress import IPv4Network
 
 from aiohttp import ClientSession
+from homeassistant.helpers.typing import HomeAssistantType
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -17,3 +19,29 @@ async def register_device(session: ClientSession, token: str):
     except:
         _LOGGER.exception("Can't register dataplicity device")
         return None
+
+
+async def fix_middleware(hass: HomeAssistantType):
+    """Dirty hack for HTTP integration. Plug and play for usual users...
+
+    [v2021.7] Home Assistant will now block HTTP requests when a misconfigured
+    reverse proxy, or misconfigured Home Assistant instance when using a
+    reverse proxy, has been detected.
+
+    http:
+      use_x_forwarded_for: true
+      trusted_proxies:
+      - 127.0.0.1
+    """
+    for f in hass.http.app.middlewares:
+        if f.__name__ != 'forwarded_middleware':
+            continue
+        #  https://til.hashrocket.com/posts/ykhyhplxjh-examining-the-closure
+        for i, var in enumerate(f.__code__.co_freevars):
+            cell = f.__closure__[i]
+            if var == 'use_x_forwarded_for':
+                if not cell.cell_contents:
+                    cell.cell_contents = True
+            elif var == 'trusted_proxies':
+                if not cell.cell_contents:
+                    cell.cell_contents = [IPv4Network('127.0.0.1/32')]