Every PostgreSQL connection this repository opened was plaintext, in every
environment: no connection site set `ssl` at all, so credentials, session
tokens, and row data crossed the network in the clear and nothing in
configuration, startup, or `pnpm doctor` said so. The public identity URL
boundary was also looser than it appeared.
`core/src/database/transport.ts` is now the one typed policy. It has exactly two
modes: `verify-full` (TLS required, certificate chain verified, and server
identity verified against the configured host — the production default) and
`disable` (the development/test default, refused outright in production). There
is deliberately no encryption-only `require` mode, no chain-only `verify-ca`,
and no `rejectUnauthorized: false` escape hatch anywhere in the configuration
surface; every loose or aliased spelling is rejected in both environments, so a
typo never quietly becomes a weaker mode. Production has no plaintext exception
at all, not even for a loopback database — a connection string cannot prove the
database is process-local.
Verification is certificate *and* hostname. The policy supplies an explicit
`checkServerIdentity` pinned to the host parsed from DATABASE_URL, because the
pinned driver sets TLS `servername` only for non-IP hosts and Node performs no
identity check when it is unset — so `rejectUnauthorized: true` alone accepts a
certificate from any host the trusted CA ever signed when connecting by IP.
Both halves are proven against a real TLS-enabled PostgreSQL, including that the
same connection without the pinned callback succeeds. Every CA, certificate, and
key is generated at test runtime and deleted afterwards.
A DATABASE_URL may no longer carry its own TLS parameters. The pinned driver
merges parsed connection-string values over explicitly passed options, so a
`?sslmode=disable` in the URL would silently replace the policy's verified `ssl`
object; that now fails with a stable code, reported by both `pnpm doctor` and
the migration CLIs rather than as "failed unexpectedly".
One shared environment reader keeps `process.env` out of Core's reusable
constructors, and every executable that opens a connection resolves the policy
identically: the API (validated before any pool, Better Auth instance, module
runtime, or listener exists), both migration commands, the bootstrap CLI, and
Doctor's own connection. Doctor reports it as a blocking failure, never a
warning, naming only the effective mode.
Separately, the identity base URL and every trusted origin must now be exactly
one canonical origin — the WHATWG origin serialization must equal the supplied
string — so a path, trailing slash, credentials, explicit default port, or
non-canonical case is rejected rather than normalized into something that no
longer matches what a browser sends. Production's loopback rejection now
classifies the address instead of comparing against three literals, covering
`.localhost`, all of 127.0.0.0/8, 0.0.0.0, `::`, expanded and IPv4-mapped
forms. This is a configuration-shape guarantee only: it does not resolve DNS or
prove reachability, and TLS protects the connection, not the exposure.
Co-Authored-By: Claude Opus 5 <[email protected]>
Production configuration accepted publicSignupEnabled: true and started a
working Identity/API runtime, even though Ekklesia has no verified email,
invitation requirement, CAPTCHA, or durable shared/edge limiter — Doctor
merely reported "Public signup is explicitly ENABLED" as a pass.
validatePublicSignupEnabled now takes the same IdentityEnvironment the rest
of this config validates against and throws the stable
PUBLIC_SIGNUP_UNSUPPORTED_IN_PRODUCTION whenever the parsed value is true in
production. Parsing stays separate from the policy, so a malformed value
still reports PUBLIC_SIGNUP_ENABLED_INVALID everywhere. Because the
executable entry point validates configuration before startApi, such a
deployment fails before any pool, Better Auth instance, module runtime, or
listener exists, and Doctor reports NOT READY via its existing
IdentityConfigError path. Development and test composition still enable it
explicitly through the identical typed path.
Co-Authored-By: Claude Opus 5 <[email protected]>
Replace Better Auth's default trust of a caller-controlled X-Forwarded-For
with a platform-owned client-address resolution boundary: direct mode (the
safe default) trusts only the real socket peer, and an explicit trusted-proxy
mode requires a header name, a concrete trusted-proxy list, and only honors a
forwarded chain from an actual trusted peer. This closes a rate-limit bypass
where rotating a spoofed header let a caller choose a fresh bucket on every
request. Public sign-up is also disabled by default and requires an explicit
typed opt-in, using Better Auth's own disableSignUp gate so no email-existence
leak or second signup path is introduced.
Co-Authored-By: Claude Sonnet 5 <[email protected]>
