Real-world user agents (in-app browsers, Android WebView variants) commonly
exceed 255 characters. On PostgreSQL that would raise and 500 the consent
POST and token exchange; SQLite dev/test does not enforce the limit, so it
went unnoticed. Use text columns for user_agent on both tables.
Part of #254
- Add user_agent to remote_storage_authorizations and rs_authorization_codes
- Capture the browser's user agent at consent, carry it on the authorization
code, and store it on the authorization when the code is exchanged
- Store it directly for the implicit flow too
With the reuse shortcut gone, each authorization is already a distinct
per-device token; this adds the metadata needed to label and display them.
Part of #254
- Make authorization-code redemption atomic: claim the code with a guarded
delete inside the transaction that creates the authorization, so concurrent
exchanges can't both issue a token (RFC 6749 4.1.3)
- Compare the token request's client_id host to the code's stored client_id
(defense-in-depth alongside the exact redirect_uri match)
- Reject unknown response_type values with unsupported_response_type
- Validate the PKCE code_challenge (43-128 unreserved chars, S256) so a client
can't persist an over-long or malformed challenge
- Return invalid_request for missing token-endpoint parameters, and set
Cache-Control: no-store on error responses too
- Use the right separator when the redirect_uri already has a query string
- Look codes up through the active scope; drop the unused consume!; serialize
permissions as JSON
- Purge abandoned authorization codes via a recurring Solid Queue task
Part of #254
Implements the optional OAuth 2.0 Authorization Code grant with PKCE
(RFC 7636) for remoteStorage, as described in the remoteStorage spec
(section 10.1).
- Advertise the authorization and token endpoints plus the supported
code_challenge method (S256) in WebFinger, and bump the advertised
spec version to draft-dejong-remotestorage-27
- Add RsAuthorizationCode: a short-lived (5 min), single-use authorization
code stored only as a SHA256 digest
- Add RsOauthManager services for issuing and exchanging codes, including
S256 verification
- Add a cross-origin POST /rs/oauth/token endpoint that exchanges a code
(and code_verifier) for an access token, with CORS and no CSRF token
- Consent dialog now carries response_type / code_challenge through the
form and redirects with the code in the query string for the code flow
- Remove the existing-token reuse shortcut so every authorization results
in a distinct authorization (and token)
Part of #254
db/seeds.rb still required "sidekiq/testing" and wrapped seeding in
Sidekiq::Testing.inline!, but Sidekiq is no longer in the bundle after
the Solid Queue migration, so `rails db:setup` failed with a LoadError.
Run the jobs triggered while seeding inline via Active Job instead,
restoring the previous behavior with the adapter the app actually uses.