Change origin / referrer in websocket proxy

[justinmann]

The header "host" field is already modified, it would be cool to also change the referrer.

I am proxing a bokeh server and it is picky about the origin for websocket requests.

[WSH032]

I think I would say no at this point. 🤷‍♂️

The philosophy of fastapi-proxy-lib is to be as "transparent" as possible. The reason host is modified is that the RFC mandates the host header to be set correctly, whereas referrer/origin is not.

If you do want to modify the latter, please refer to: https://wsh032.github.io/fastapi-proxy-lib/Usage/Advanced/#modify-request

[justinmann]

That is fine. I can confirm that this done work for websocket & http proxies.

class FixOrigin(httpx.Auth):
    def __init__(self, url: str):
        self.url = url

    def auth_flow(self, request: httpx.Request) -> Generator[Request, Any, None]:
        request.headers["origin"] = self.url
        yield request