add poster image header

backend/stream.py

@@ -146,16 +146,12 @@ class UpstreamHandler():
         self.upstream_safe = None
         self.render = False
         self.stream = False
-        self.poster = False
     async def setup(self, handler):
         self.provider = handler.get_query_argument("provider", None)
         render_str = handler.get_query_argument("render", "false")
-        poster_str = handler.get_query_argument("poster", "false")
         if self.provider in providers.keys():
             if render_str.lower() == "true":
                 self.render = True
-            elif poster_str.lower() == "true":
-                self.poster = True
             else:
                 self.stream = True
 
@@ -237,9 +233,6 @@ class UpstreamHandler():
         except Exception as e:
             logger.info(e)
         return data
-    async def meta_list(self):
-        meta_data = await self.meta()
-        return list(meta_data.items())
 
 if icecast_server is not None and stream_server is not None:
     try:
@@ -348,8 +341,6 @@ class MainHandler(tornado.web.RequestHandler):
             await self.handle_render(handler)
         elif handler.stream:
             await self.handle_stream(handler, redir)
-        elif handler.poster:
-            await self.handle_poster(handler)
         else:
             logger.info(f'provider missing {self.request.uri}')
             self.set_status(404)
@@ -357,15 +348,10 @@ class MainHandler(tornado.web.RequestHandler):
     
     async def handle_render(self, handler):
         if script_file is not None and template_html is not None:
-            meta = await handler.meta_list()
+            meta = await handler.meta()
+            meta_list = list(meta.items())
             title = handler.render_url
-            video_title = None
-            for elem in meta:
-                if isinstance(elem[1], str):
-                    if elem[0] == "og:title":
-                        video_title = elem[1]
-                        break
-
+            video_title = meta.get("og:title")
             data["script"] = script_file
             data["videojs_version"] = videojs_version
             data["chromecast_version"] = chromecast_version
@@ -377,20 +363,16 @@ class MainHandler(tornado.web.RequestHandler):
             self.set_status(404)
             self.write("HTML template missing.")
 
-    async def handle_poster(self, handler):
+    async def handle_stream(self, handler, redir):
         meta = await handler.meta()
         image = meta.get("og:image")
         if isinstance(image, str):
-            if handler.provider == "youtube":
+            if handler.provider == "youtube" and image.endswith("hqdefault.jpg"):
                 image = image.removesuffix("hqdefault.jpg") + "maxresdefault.jpg"
-            url = await handler.proxy.proxy_url(image, None)
-            if isinstance(url, str):
-                self.redirect(url, status=303)
-                return
-        self.set_status(404)
-        self.write("Poster not found")
+            image = await handler.proxy.proxy_url(image, None)
+        if isinstance(image, str):
+            self.set_header("Custom-Poster", image)
 
-    async def handle_stream(self, handler, redir):
         upstream = None
         if handler.provider == "nextcloud":
             upstream = handler.upstream