55 lines
1.5 KiB
Go
55 lines
1.5 KiB
Go
package auth
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import (
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"context"
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"errors"
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"net/http"
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"github.com/jackc/pgx/v5"
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"github.com/jackc/pgx/v5/pgxpool"
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"git.fabledsword.com/bvandeusen/minstrel/internal/db/dbq"
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)
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type ctxKey int
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const userCtxKey ctxKey = 1
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// RequireAdmin gates a handler on X-API-Token matching an admin user. This is
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// the Minstrel-native token path (`/api/*`); Subsonic-compatible auth under
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// `/rest/*` lands with the Subsonic server.
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func RequireAdmin(pool *pgxpool.Pool) func(http.Handler) http.Handler {
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return func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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token := r.Header.Get("X-API-Token")
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if token == "" {
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http.Error(w, "missing X-API-Token", http.StatusUnauthorized)
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return
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}
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q := dbq.New(pool)
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user, err := q.GetUserByAPIToken(r.Context(), token)
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if err != nil {
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if errors.Is(err, pgx.ErrNoRows) {
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http.Error(w, "invalid token", http.StatusUnauthorized)
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return
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}
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http.Error(w, "auth lookup failed", http.StatusInternalServerError)
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return
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}
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if !user.IsAdmin {
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http.Error(w, "admin required", http.StatusForbidden)
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return
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}
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ctx := context.WithValue(r.Context(), userCtxKey, user)
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next.ServeHTTP(w, r.WithContext(ctx))
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})
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}
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}
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// UserFromContext returns the authenticated user when the request passed
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// through RequireAdmin (or a future RequireUser middleware).
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func UserFromContext(ctx context.Context) (dbq.User, bool) {
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u, ok := ctx.Value(userCtxKey).(dbq.User)
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return u, ok
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}
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