pomerium/authenticate/middleware.go

22 lines
740 B
Go

package authenticate
import (
"net/http"
"github.com/pomerium/pomerium/internal/httputil"
"github.com/pomerium/pomerium/internal/urlutil"
)
// requireValidSignatureOnRedirect validates the pomerium_signature if a redirect_uri or pomerium_signature
// is present on the query string.
func (a *Authenticate) requireValidSignatureOnRedirect(next httputil.HandlerFunc) http.Handler {
return httputil.HandlerFunc(func(w http.ResponseWriter, r *http.Request) error {
if r.FormValue(urlutil.QueryRedirectURI) != "" || r.FormValue(urlutil.QueryHmacSignature) != "" {
err := a.state.Load().flow.VerifyAuthenticateSignature(r)
if err != nil {
return httputil.NewError(http.StatusBadRequest, err)
}
}
return next(w, r)
})
}