package api import ( "net/http" "github.com/smallstep/certificates/errs" ) // RekeyRequest is the request body for a certificate rekey request. type RekeyRequest struct { CsrPEM CertificateRequest `json:"csr"` } // Validate checks the fields of the RekeyRequest and returns nil if they are ok // or an error if something is wrong. func (s *RekeyRequest) Validate() error { if s.CsrPEM.CertificateRequest == nil { return errs.BadRequest("missing csr") } if err := s.CsrPEM.CertificateRequest.CheckSignature(); err != nil { return errs.Wrap(http.StatusBadRequest, err, "invalid csr") } return nil } // Rekey is similar to renew except that the certificate will be renewed with new key from csr. func (h *caHandler) Rekey(w http.ResponseWriter, r *http.Request) { if r.TLS == nil || len(r.TLS.PeerCertificates) == 0 { WriteError(w, errs.BadRequest("missing peer certificate")) return } var body RekeyRequest if err := ReadJSON(r.Body, &body); err != nil { WriteError(w, errs.Wrap(http.StatusBadRequest, err, "error reading request body")) return } if err := body.Validate(); err != nil { WriteError(w, err) return } certChain, err := h.Authority.Rekey(r.TLS.PeerCertificates[0], body.CsrPEM.CertificateRequest.PublicKey) if err != nil { WriteError(w, errs.Wrap(http.StatusInternalServerError, err, "cahandler.Rekey")) return } certChainPEM := certChainToPEM(certChain) var caPEM Certificate if len(certChainPEM) > 1 { caPEM = certChainPEM[1] } logCertificate(w, certChain[0]) JSONStatus(w, &SignResponse{ ServerPEM: certChainPEM[0], CaPEM: caPEM, CertChainPEM: certChainPEM, TLSOptions: h.Authority.GetTLSOptions(), }, http.StatusCreated) }