I need to decode the plug session manually for my websocket server (I used to only have API calls and that worked fine, but now that I need websockets, which don’t work with plug, I have to decode the session cookie without the conn struct). I have managed to get a bitstring, but there seems to be s…

You need to call :erlang.binary_to_term/1 on that. Or, better: Plug.Crypto.non_executable_binary_to_term(session, [:safe])

Thanks a lot! I may do a simple library in the future with all the stuff in here just in case someone else also needs this kind of functionality because it feels weird to not see it already solved.

All of that code is in plug, so not sure why you feel this is “not solved”. It’s not really clear what you’re doing, but there’s reasons why cookies (and therefore sessioon data) are not just exposed to channels (over websockets) in phoenix – these cannot be properly secured. Phoenix.Endpoint — Pho…

You may want to take a look at the WebSock & WebSockAdapter libraries, along with the new upgrade_adapter/3 function added in Plug 1.14. This is the stack that Phoenix is based on as of 1.7, and comprises a fully open standard WebSocket support in both Bandit and Cowboy web servers. For what you’re…

I’m not using phoenix, and I’m just using this in the initial connection to the websocket route, not for sending messages once the websocket connection has been established.

Elixir Programming Language Forum

Decoding Plug session manually

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hawkyre January 16, 2023, 6:01pm 7

Oh hey that looks pretty interesting; I’ll definitely check it out. Thanks!