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Michael Suchacz
4b9880afa6
Adds a hidden `--chat-hook-allow-insecure` / `CODER_CHAT_HOOK_ALLOW_INSECURE` deployment option (default `false`) that allows the chat lifecycle hook URL to use plain HTTP for any host. The HTTPS requirement is enforced at two points, and the flag relaxes both: `DeploymentValues.Validate()` rejects `http` hook URLs at startup, and the hook dispatcher's `validateHookURL` allows `http` only for loopback hosts. With the flag set, any-host `http` is accepted; the host, fragment/userinfo, secret, and timeout checks are unchanged, and non-http(s) schemes still fail. This removes the need for an HTTPS reverse proxy when testing a hook consumer on a trusted network. Following security review feedback, the flag description and docs state that plain HTTP lets an on-path attacker forge hook responses (which control agent execution), and `coder server` logs a startup warning (with a redacted hook URL) when hooks run over plain HTTP. Docs, generated API types, and the server config golden are updated accordingly. > Mux acted on Mike's behalf to create this PR.