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Chris LuandGitHub
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* lance: accept OAuth2 bearer tokens for catalog auth Lance and LanceDB clients can only send OAuth2 / Bearer / API-Key headers on catalog calls, never SigV4, so behind an auth-enabled S3 gateway every namespace request failed with 403 Access Denied. Mirror the Iceberg catalog's OAuth2 support: POST /oauth/token accepts an S3 access key / secret key as client_id / client_secret, validates them against IAM, and returns a signed JWT. The Auth middleware accepts that token as a Bearer credential before falling through to SigV4. Closes #11430 * lance: accept x-api-key header carrying an S3 credential The Lance namespace spec's third auth scheme maps api_key onto the x-api-key header. Accept "access_key:secret_key" there and validate it against IAM, so clients that only hold static headers can authenticate without minting a token first. * lance: answer invalid_client with the Basic challenge RFC 6749 5.2 requires a 401 from the token endpoint to carry WWW-Authenticate matching the scheme the client used, so it knows how to retry. * lance: cap the token endpoint request body /oauth/token is unauthenticated, so ParseForm needs the same size bound decodeBody applies to every other catalog request. * lance: keep query strings out of request logs /oauth/token rejects a client_secret sent in the query, but the logging middleware and the catch-all wrote RequestURI to the log before that rejection ran. Log the path alone so a mis-sent secret never reaches the log. * lance: log the escaped path, not the decoded one URL.Path decodes percent escapes, so a request like /%0aFORGED could split log lines. EscapedPath keeps the encoding while still dropping the query string.