How to pass cookies for authorization and set base_url dynamically?

[proDreams]

Hi!

I’m facing an issue while using fastapi-proxy-lib and I also have a question:

Problem: When trying to authorize on a proxied site, I’m getting errors related to cookies or CSRF (which is stored in cookies). Am I doing something wrong?

router = APIRouter()

@router.get("/{path:path}")
@router.post("/{path:path}")
async def _(request: Request, path: str = "", code: str = Cookie(None)):
    proxy = ReverseHttpProxy(base_url="https://pressanybutton.ru/")

    proxy_response = await proxy.proxy(request=request, path=path)

    return proxy_response

Question: How can I implement the base_url dynamically instead of hardcoding it as shown in the code above? For example, if I need to proxy multiple sites, how can I do that?

I’d really appreciate your help!

[WSH032]

Problem: When trying to authorize on a proxied site, I’m getting errors related to cookies or CSRF (which is stored in cookies). Am I doing something wrong?

Due to GHSA-7vwr-g6pm-9hc8, fastapi-proxy-lib does not forward any cookies. If you really need to do so, please set the cookie header manually via Modify request.

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Question: How can I implement the base_url dynamically instead of hardcoding it as shown in the code above? For example, if I need to proxy multiple sites, how can I do that?

Instantiate multiple proxy instances and decide which one to use as needed?

https://wsh032.github.io/fastapi-proxy-lib/Usage/Advanced/#modify-redefine-response-only-to-particular-endpoint

[proDreams]

Due to GHSA-7vwr-g6pm-9hc8, fastapi-proxy-lib does not forward any cookies. If you really need to do so, please set the cookie header manually via Modify request.

I'll try

Instantiate multiple proxy instances and decide which one to use as needed?

That's the point, my interest is to proxy not some given site/sites, but potentially any

[WSH032]

That's the point, my interest is to proxy not some given site/sites, but potentially any

Would ForwardHttpProxy meet your needs?

• https://wsh032.github.io/fastapi-proxy-lib/Usage/#what-is-a-forward-proxy
• https://wsh032.github.io/fastapi-proxy-lib/reference/fastapi_proxy_lib/core/http/#fastapi_proxy_lib.core.http.ForwardHttpProxy

[proDreams]

Would ForwardHttpProxy meet your needs?

I want to hide the target site from the client

[WSH032]

I want to hide the target site from the client

Then you can use ForwardHttpProxy.send_request_to_target.

Refer to ForwardHttpProxy.proxy to know how to use it.

Note that this is a relatively low-level API, and I provide fewer guarantees about its semantic compatibility. However, you likely don't need to worry about this, as fastapi-proxy-lib is currently in maintenance mode, so no significant API changes are expected.

[WSH032]

my interest is to proxy not some given site/sites, but potentially any

TBH, I think this goes a bit beyond what a "proxy" is supposed to do. Can you find other proxy frameworks that support this (e.g., Nginx)?

For such a requirement, you can simply use httpx to send custom requests.