Argon2id password hashing (PHC format, self-encoded/decoded without an external lib) with constant-time verification, UserStore (create/get by email and id) and SessionStore (opaque crypto/rand tokens, SHA-256 hashed in DB, create/lookup/revoke, last_seen_at bump on lookup). HTTP layer: Register/Login/Logout handlers + RequireAuth middleware. Login uses a dummy-hash path so unknown-email and wrong-password yield the same timing/shape, narrowing user enumeration. Tokens accepted via Bearer header (native clients) or session cookie (HttpOnly, SameSite=Lax). Routes wired in api.go: POST /auth/register, /auth/login, /auth/logout. Verified with go test, go vet and an end-to-end smoke test against a real PostgreSQL container (register/login/logout/duplicate/short-pw/wrong-pw). OIDC (Phase B part 2) follows next; the issueSession helper is reused.
14 lines
341 B
Go
14 lines
341 B
Go
package auth
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import (
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"errors"
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"github.com/jackc/pgx/v5/pgconn"
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)
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// isUniqueViolation reports whether err is a PostgreSQL unique_violation (SQLSTATE 23505),
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// e.g. from a duplicate INSERT on a UNIQUE column.
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func isUniqueViolation(err error) bool {
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var pgErr *pgconn.PgError
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return errors.As(err, &pgErr) && pgErr.Code == "23505"
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}
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