`takeKept` takes a `transaction`, so a host's step that fails (a name
taken meanwhile) gives the identity back instead of losing it; `isKept`
tells whether an identity waits under an attempt for its caller, so a
host can check before asking more of the person.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>
The module sends the client's ID and secret form-encoded inside Basic
authentication, as RFC 6749 (2.3.1) has them; the fake compared the header
with them raw, so a host testing with a secret holding a space or a colon
saw every code refused. A test now holds the module to the encoding.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>
The module's test provider moves into `package:halkyon_oidc_server/testing.dart`,
so a host tests its own sign-in against the module's real checks rather than
a copy: `TestKey` makes and publishes an RSA key and signs ID tokens with
headers written by hand (no `typ`, as SimpleLogin's), and `FakeProvider`
answers discovery, the keys and the token endpoint through an HTTP client
the host hands the module. `FakeProvider.simpleLogin` has SimpleLogin's
issuer and endpoints, without PKCE, as the preset expects; a test now signs
in through the preset end to end. pointycastle, already in the lock through
dart_jsonwebtoken, becomes a dependency for it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>
halkyon_oidc_server and its generated client halkyon_oidc_client: any
provider following OpenID Connect's code flow, beside Serverpod's own
providers, with a preset for SimpleLogin (no PKCE, no `typ`). Nothing
of Halkyon's is in it; BSD-3-Clause, `publish_to: none` for now.
- Attempts in `halkyon_oidc_attempt` (ADR 0020's D13): the ID
PostgreSQL's gen_random_uuid(), a state and a nonce of 32 random
bytes, PKCE's verifier where used, the caller if signed in; ten
minutes, taken once. A host may begin the state with a marker.
- The code exchanged by the module itself, so a provider out of reach
(a timeout, a 5xx) is told apart from a refused code; the ID token
checked with dart_jsonwebtoken's algorithms (ADR 0020's D12): the
provider's algorithms alone, the key its `kid` names, of the right
type; issuer, audience and `azp`, expiry, time issued, `nbf`, a
minute's leeway; the attempt's nonce; a `sub`.
- Keys kept an hour, fetched again for an unknown `kid` at most once
a minute; discovery checked against the issuer; every request with
a timeout.
- Identities in `halkyon_oidc_identity`: the provider's key and the
`sub`, one per person and provider, deleted with the person.
- The stock endpoint (`OidcIdpBaseEndpoint`), and the parts for a host
with rules of its own: begin, verify, keep and takeKept, link,
accountOf, unlink; merging people; a limit per network.
- The forwarding page, moved here from halkyon_base in the next commit.
The package's main library is the code generator's, as halkyon_base's;
a host imports `package:halkyon_oidc_server/oidc.dart`. ADR 0023's
point 5 no longer names OAuth2PkceUtil, which the module doesn't use.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>
