stillbox/pkg/auth/auth.go
2025-01-15 23:11:42 -05:00

81 lines
1.7 KiB
Go

package auth
import (
"errors"
"net/http"
"time"
_ "embed"
"dynatron.me/x/stillbox/pkg/config"
"github.com/go-chi/chi/v5"
"github.com/go-chi/httprate"
"github.com/go-chi/jwtauth/v5"
)
// Authenticator performs API key and user JWT authentication.
type Authenticator interface {
jwtAuth
apiKeyAuth
}
type Auth struct {
rl *httprate.RateLimiter
jwt *jwtauth.JWTAuth
cfg config.Auth
}
// NewAuthenticator creates a new Authenticator with the provided config.
func NewAuthenticator(cfg config.Auth) *Auth {
a := &Auth{
rl: httprate.NewRateLimiter(5, time.Minute),
cfg: cfg,
}
a.initJWT()
return a
}
func (a *Auth) HUP(cfg *config.Config) {
a.cfg = cfg.Auth
a.initJWT()
}
var (
ErrLoginFailed = errors.New("Login failed")
ErrInternal = errors.New("Internal server error")
ErrUnauthorized = errors.New("Unauthorized")
ErrBadRequest = errors.New("Bad request")
)
// ErrorResponse writes the error and appropriate HTTP response code.
func ErrorResponse(w http.ResponseWriter, err error) {
switch err {
case ErrLoginFailed, ErrUnauthorized:
http.Error(w, err.Error(), http.StatusUnauthorized)
case ErrBadRequest:
http.Error(w, err.Error(), http.StatusBadRequest)
case ErrInternal:
fallthrough
default:
http.Error(w, err.Error(), http.StatusInternalServerError)
}
}
func (a *Auth) PublicRoutes(r chi.Router) {
r.Post("/api/login", a.routeAuth)
r.Get("/api/login", a.routeLogin)
}
func (a *Auth) PrivateRoutes(r chi.Router) {
r.Get("/api/refresh", a.routeRefresh)
r.Get("/api/logout", a.routeLogout)
}
//go:embed login.html
var loginPage []byte
func (a *Auth) routeLogin(w http.ResponseWriter, r *http.Request) {
w.Header().Add("Content-Type", "text/html")
_, _ = w.Write(loginPage)
}