add favicon support

gradio/app.py

@@ -117,6 +117,14 @@ def static_resource(path: str):
     raise HTTPException(status_code=404, detail="Static file not found")
 
 
+@app.get('/favicon.ico')
+async def favicon():
+    if app.favicon_path:
+        return FileResponse(app.favicon_path)
+    else:
+        raise HTTPException(status_code=404, detail="Favicon file not found")
+
+
 @app.get("/api", response_class=HTMLResponse)  # Needed for Spaces
 @app.get("/api/", response_class=HTMLResponse)
 def api_docs(request: Request):
@@ -307,6 +315,9 @@ if __name__ == '__main__': # Run directly for debugging: python app.py
     app.interface.config = app.interface.get_config_file()
     app.interface.show_error = True
     app.interface.flagging_callback.setup(app.interface.flagging_dir)
+    app.favicon_path = None
+    app.tokens = {}
+    
     auth = True
     if auth:
         app.interface.auth = ("a", "b")
@@ -314,5 +325,5 @@ if __name__ == '__main__': # Run directly for debugging: python app.py
         app.interface.auth_message = None
     else:
         app.auth = None
-    app.tokens = {}
+
     uvicorn.run(app)

gradio/interface.py

@@ -518,7 +518,8 @@ class Interface:
         height: int = 500, 
         width: int = 900, 
         encrypt: bool = False,
-        cache_examples: bool = False
+        cache_examples: bool = False,
+        favicon_path: Optional[str] = None,
     ) -> Tuple[flask.Flask, str, str]:
         """
         Launches the webserver that serves the UI for the interface.
@@ -540,6 +541,7 @@ class Interface:
         height (int): The height in pixels of the <iframe> element containing the interface (used if inline=True)
         encrypt (bool): If True, flagged data will be encrypted by key provided by creator at launch
         cache_examples (bool): If True, examples outputs will be processed and cached in a folder, and will be used if a user uses an example input.
+        favicon_path (str): If a path to an file (.png, .gif, or .ico) is provided, it will be used as the favicon for the web page.
         Returns:
         app (flask.Flask): Flask app object
         path_to_local_server (str): Locally accessible link
@@ -556,6 +558,7 @@ class Interface:
         self.show_error = show_error
         self.height = self.height or height
         self.width = self.width or width
+        self.favicon_path = favicon_path
         
         if self.encrypt is None:
             self.encrypt = encrypt  
@@ -575,7 +578,7 @@ class Interface:
             cache_interface_examples(self)
 
         server_port, path_to_local_server, app, server = networking.start_server(
-            self, server_name, server_port, self.auth)
+            self, server_name, server_port)
         
         self.local_url = path_to_local_server
         self.server_port = server_port

gradio/networking.py

@@ -100,7 +100,6 @@ def start_server(
     interface: Interface, 
     server_name: Optional[str] = None, 
     server_port: Optional[int] = None, 
-    auth: Optional[Callable | Tuple[str, str] | List[Tuple[str, str]]] = None, 
 ) -> Tuple[int, str, fastapi.FastAPI, threading.Thread, None]:
     """Launches a local server running the provided Interface
     Parameters:
@@ -126,6 +125,7 @@ def start_server(
 
     url_host_name = "localhost" if server_name == "0.0.0.0" else server_name
     path_to_local_server = "http://{}:{}/".format(url_host_name, port)
+    auth = interface.auth
     if auth is not None:
         if not callable(auth):
             app.auth = {account[0]: account[1] for account in auth}
@@ -135,6 +135,9 @@ def start_server(
         app.auth = None
     app.interface = interface
     app.cwd = os.getcwd()
+    app.favicon_path = interface.favicon_path
+    app.tokens = {}
+    
     if app.interface.enable_queue:
         if auth is not None or app.interface.encrypt:
             raise ValueError("Cannot queue with encryption or authentication enabled.")
@@ -143,7 +146,7 @@ def start_server(
         app.queue_thread.start()
     if interface.save_to is not None:  # Used for selenium tests
         interface.save_to["port"] = port
-    app.tokens = {}
+                
     config = uvicorn.Config(app=app, port=port, host=server_name, 
                             log_level="warning")
     server = Server(config=config)