add nextcloud support

backend/stream.py

@@ -22,6 +22,11 @@ providers["nrk"] = "https://tv.nrk.no"
 providers["svt"] = "https://svtplay.se"
 providers["youtube"] = "https://www.youtube.com/watch?v="
 providers["twitch"] = "https://twitch.tv"
+
+nextcloud_server = os.environ.get("NEXTCLOUD_SERVER")
+if nextcloud_server is not None:
+    providers["nextcloud"] = nextcloud_server
+
 playlist = None
 icecast_server = os.environ.get("ICECAST_SERVER")
 stream_server = os.environ.get("STREAM_SERVER")
@@ -341,7 +346,10 @@ class MainHandler(tornado.web.RequestHandler):
             self.write("HTML template missing.")
 
     async def handle_stream(self, handler, redir):
-        streams = None
+        upstream = None
+        if handler.provider == "nextcloud":
+            upstream = handler.upstream
+        else:
             upstream = await stream_providers.get_any(handler.upstream, handler.proxy, logger)
         if upstream is None:
             logger.info(f'invalid upstream ({handler.provider})')