The profile cookie has been configurable since #1756 via
WEBUI_PROFILE_COOKIE_NAME, the lone WebUI env var missing the HERMES_WEBUI_
prefix shared by every other setting (e.g. HERMES_WEBUI_COOKIE_NAME from #3981).
- Read HERMES_WEBUI_PROFILE_COOKIE_NAME first (canonical name)
- Keep WEBUI_PROFILE_COOKIE_NAME as a deprecated alias so existing deployments
are unaffected; behavior is unchanged, only the name is aligned
- Warn once per process for the legacy name (this resolver runs on every
request, so the deprecation log must not fire per-request)
- Add resolution tests covering canonical, legacy, precedence, blank, and
warn-once paths
#4022 now calls resolve_runtime_provider(requested=..., target_model=...) so
per-model base_url normalization applies; the sprint42 test pinned the old
single-arg signature. Updated the assertion to expect target_model (pre-existing
test, not a behavior regression — confirmed it passes on master only because the
call signature changed here).
Codex caught a regression: the contributor's _runtime_preferred_base_url preferred
the runtime base_url for ALL non-custom providers, which would clobber an explicit
providers.<id>.base_url override pointing at a different host/port (LM Studio at a
LAN IP, an OpenRouter mirror). Now only prefer the runtime URL when it's the SAME
scheme+host+port as the configured one (the #3895 /v1-dedup case is path-only on
the same host); a genuinely different configured endpoint wins. Added
_same_base_url_endpoint() + 2 regression tests (different-endpoint preserved,
same-endpoint normalization).
Opus independent security review concurred SAFE and surfaced 2 LOW defense-in-depth
items, both applied: (1) verify_profile_cookie_value now validates the profile name
against _PROFILE_ID_RE itself (not only in get_profile_cookie) so a future second
caller can't return an unvalidated name; (2) build_profile_cookie raises when auth is
enabled and no handler is passed, so a future call site can't silently emit an
unsigned (session-unbound) profile cookie. +3 regression tests.
