// initialCAHandler is an HTTP handler that accepts a JSON blob in the
// same format as the CSR endpoint; this blob should contain the
// identity information for the CA's root key. This endpoint is not
// suitable for creating intermediate certificates.
func initialCAHandler(w http.ResponseWriter, r *http.Request) error {
log.Info("setting up initial CA handler")
body, err := ioutil.ReadAll(r.Body)
if err != nil {
log.Warningf("failed to read request body: %v", err)
return errors.NewBadRequest(err)
}
req := new(csr.CertificateRequest)
req.KeyRequest = csr.NewBasicKeyRequest()
err = json.Unmarshal(body, req)
if err != nil {
log.Warningf("failed to unmarshal request: %v", err)
return errors.NewBadRequest(err)
}
cert, _, key, err := initca.New(req)
if err != nil {
log.Warningf("failed to initialise new CA: %v", err)
return err
}
response := api.NewSuccessResponse(&NewCA{string(key), string(cert)})
enc := json.NewEncoder(w)
err = enc.Encode(response)
return err
}
// RefreshKeys will make sure the Transport has loaded keys and has a
// valid certificate. It will handle any persistence, check that the
// certificate is valid (i.e. that its expiry date is within the
// Before date), and handle certificate reissuance as needed.
func (tr *Transport) RefreshKeys() (err error) {
if !tr.Provider.Ready() {
log.Debug("key and certificate aren't ready, loading")
err = tr.Provider.Load()
if err != nil && err != kp.ErrCertificateUnavailable {
log.Debugf("failed to load keypair: %v", err)
kr := tr.Identity.Request.KeyRequest
if kr == nil {
kr = csr.NewBasicKeyRequest()
}
err = tr.Provider.Generate(kr.Algo(), kr.Size())
if err != nil {
log.Debugf("failed to generate key: %v", err)
return
}
}
}
lifespan := tr.Lifespan()
if lifespan < tr.Before {
log.Debugf("transport's certificate is out of date (lifespan %s)", lifespan)
req, err := tr.Provider.CertificateRequest(tr.Identity.Request)
if err != nil {
log.Debugf("couldn't get a CSR: %v", err)
return err
}
log.Debug("requesting certificate from CA")
cert, err := tr.CA.SignCSR(req)
if err != nil {
log.Debugf("failed to get the certificate signed: %v", err)
return err
}
log.Debug("giving the certificate to the provider")
err = tr.Provider.SetCertificatePEM(cert)
if err != nil {
log.Debugf("failed to set the provider's certificate: %v", err)
return err
}
log.Debug("storing the certificate")
err = tr.Provider.Store()
if err != nil {
log.Debugf("the provider failed to store the certificate: %v", err)
return err
}
}
return nil
}
func genkeyMain(args []string, c cli.Config) (err error) {
csrFile, args, err := cli.PopFirstArgument(args)
if err != nil {
return
}
csrFileBytes, err := cli.ReadStdin(csrFile)
if err != nil {
return
}
req := csr.CertificateRequest{
KeyRequest: csr.NewBasicKeyRequest(),
}
err = json.Unmarshal(csrFileBytes, &req)
if err != nil {
return
}
if c.IsCA {
var key, csrPEM, cert []byte
cert, csrPEM, key, err = initca.New(&req)
if err != nil {
return
}
cli.PrintCert(key, csrPEM, cert)
} else {
if req.CA != nil {
err = errors.New("ca section only permitted in initca")
return
}
var key, csrPEM []byte
g := &csr.Generator{Validator: Validator}
csrPEM, key, err = g.ProcessRequest(&req)
if err != nil {
key = nil
return
}
cli.PrintCert(key, csrPEM, nil)
}
return nil
}
// Handle responds to requests for the CA to generate a new private
// key and certificate request on behalf of the client. The format for
// these requests is documented in the API documentation.
func (g *Handler) Handle(w http.ResponseWriter, r *http.Request) error {
log.Info("request for CSR")
body, err := ioutil.ReadAll(r.Body)
if err != nil {
log.Warningf("failed to read request body: %v", err)
return errors.NewBadRequest(err)
}
req := new(csr.CertificateRequest)
req.KeyRequest = csr.NewBasicKeyRequest()
err = json.Unmarshal(body, req)
if err != nil {
log.Warningf("failed to unmarshal request: %v", err)
return errors.NewBadRequest(err)
}
if req.CA != nil {
log.Warningf("request received with CA section")
return errors.NewBadRequestString("ca section only permitted in initca")
}
csr, key, err := g.generator.ProcessRequest(req)
if err != nil {
log.Warningf("failed to process CSR: %v", err)
// The validator returns a *cfssl/errors.HttpError
return err
}
sum, err := computeSum(csr)
if err != nil {
return errors.NewBadRequest(err)
}
// Both key and csr are returned PEM-encoded.
response := api.NewSuccessResponse(&CertRequest{
Key: string(key),
CSR: string(csr),
Sums: map[string]Sum{"certificate_request": sum},
})
w.Header().Set("Content-Type", "application/json")
enc := json.NewEncoder(w)
err = enc.Encode(response)
return err
}
func TestCSRValidate(t *testing.T) {
req := &csr.CertificateRequest{
Names: []csr.Name{
{
C: "US",
ST: "California",
L: "San Francisco",
O: "CloudFlare",
OU: "Systems Engineering",
},
},
CN: "cloudflare.com",
Hosts: []string{},
KeyRequest: csr.NewBasicKeyRequest(),
}
err := CSRValidate(req)
if err != nil {
t.Fatal("There should be not an error for missing Hosts parameter")
}
}
func csrData(t *testing.T) *bytes.Reader {
req := &csr.CertificateRequest{
Names: []csr.Name{
{
C: "US",
ST: "California",
L: "San Francisco",
O: "CloudFlare",
OU: "Systems Engineering",
},
},
CN: "cloudflare.com",
Hosts: []string{"cloudflare.com"},
KeyRequest: csr.NewBasicKeyRequest(),
}
csrBytes, err := json.Marshal(req)
if err != nil {
t.Fatal(err)
}
return bytes.NewReader(csrBytes)
}
func gencertMain(args []string, c cli.Config) error {
if c.RenewCA {
log.Infof("re-generate a CA certificate from CA cert and key")
cert, err := initca.RenewFromPEM(c.CAFile, c.CAKeyFile)
if err != nil {
log.Errorf("%v\n", err)
return err
}
cli.PrintCert(nil, nil, cert)
return nil
}
csrJSONFile, args, err := cli.PopFirstArgument(args)
if err != nil {
return err
}
csrJSONFileBytes, err := cli.ReadStdin(csrJSONFile)
if err != nil {
return err
}
req := csr.CertificateRequest{
KeyRequest: csr.NewBasicKeyRequest(),
}
err = json.Unmarshal(csrJSONFileBytes, &req)
if err != nil {
return err
}
switch {
case c.IsCA:
var key, csrPEM, cert []byte
if c.CAKeyFile != "" {
log.Infof("re-generate a CA certificate from CSR and CA key")
cert, csrPEM, err = initca.NewFromPEM(&req, c.CAKeyFile)
if err != nil {
log.Errorf("%v\n", err)
return err
}
} else {
log.Infof("generating a new CA key and certificate from CSR")
cert, csrPEM, key, err = initca.New(&req)
if err != nil {
return err
}
}
cli.PrintCert(key, csrPEM, cert)
default:
if req.CA != nil {
err = errors.New("ca section only permitted in initca")
return err
}
// Remote can be forced on the command line or in the config
if c.Remote == "" && c.CFG == nil {
if c.CAFile == "" {
log.Error("need a CA certificate (provide one with -ca)")
return nil
}
if c.CAKeyFile == "" {
log.Error("need a CA key (provide one with -ca-key)")
return nil
}
}
var key, csrBytes []byte
g := &csr.Generator{Validator: genkey.Validator}
csrBytes, key, err = g.ProcessRequest(&req)
if err != nil {
key = nil
return err
}
s, err := sign.SignerFromConfig(c)
if err != nil {
return err
}
var cert []byte
req := signer.SignRequest{
Request: string(csrBytes),
Hosts: signer.SplitHosts(c.Hostname),
Profile: c.Profile,
Label: c.Label,
}
cert, err = s.Sign(req)
if err != nil {
return err
}
// This follows the Baseline Requirements for the Issuance and
// Management of Publicly-Trusted Certificates, v.1.1.6, from the CA/Browser
// Forum (https://cabforum.org). Specifically, section 10.2.3 ("Information
// Requirements"), states:
//
// "Applicant information MUST include, but not be limited to, at least one
// Fully-Qualified Domain Name or IP address to be included in the Certificate’s
// SubjectAltName extension."
if len(req.Hosts) == 0 {
log.Warning(generator.CSRNoHostMessage)
}
cli.PrintCert(key, csrBytes, cert)
}
return nil
}
