Go-Back-Skeleton/auth/authorizer.go
2017-09-25 20:19:57 +02:00

31 lines
666 B
Go

package auth
import (
"net/http"
"github.com/go-chi/render"
)
// RequiresRole middleware restricts access to accounts having role parameter in their jwt claims.
func RequiresRole(role string) func(next http.Handler) http.Handler {
return func(next http.Handler) http.Handler {
hfn := func(w http.ResponseWriter, r *http.Request) {
claims := ClaimsFromCtx(r.Context())
if !hasRole(role, claims.Roles) {
render.Render(w, r, ErrForbidden)
return
}
next.ServeHTTP(w, r)
}
return http.HandlerFunc(hfn)
}
}
func hasRole(role string, roles []string) bool {
for _, r := range roles {
if r == role {
return true
}
}
return false
}