// Handle listens for incoming requests for CA information, and returns
// a list containing information on each root certificate.
func (h *Handler) Handle(w http.ResponseWriter, r *http.Request) error {
req := new(client.InfoReq)
body, err := ioutil.ReadAll(r.Body)
if err != nil {
log.Warningf("failed to read request body: %v", err)
return errors.NewBadRequest(err)
}
err = json.Unmarshal(body, req)
if err != nil {
log.Warningf("failed to unmarshal request: %v", err)
return errors.NewBadRequest(err)
}
cert, err := h.sign.Certificate(req.Label, req.Profile)
if err != nil {
return err
}
resp := client.InfoResp{
Certificate: bundler.PemBlockToString(&pem.Block{Type: "CERTIFICATE", Bytes: cert.Raw}),
}
response := api.NewSuccessResponse(resp)
w.Header().Set("Content-Type", "application/json")
enc := json.NewEncoder(w)
return enc.Encode(response)
}
// 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")
req := new(csr.CertificateRequest)
body, err := ioutil.ReadAll(r.Body)
if err != nil {
log.Warningf("failed to read request body: %v", err)
return errors.NewBadRequest(err)
}
err = json.Unmarshal(body, req)
if err != nil {
log.Warningf("failed to unmarshal request: %v", err)
return errors.NewBadRequest(err)
}
key, cert, 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
}
// Handle implements an http.Handler interface for the bundle handler.
func (h *Handler) Handle(w http.ResponseWriter, r *http.Request) error {
blob, matched, err := api.ProcessRequestFirstMatchOf(r,
[][]string{
[]string{"certificate"},
[]string{"domain"},
})
if err != nil {
log.Warningf("invalid request: %v", err)
return err
}
flavor := blob["flavor"]
bf := bundler.Ubiquitous
if flavor != "" {
bf = bundler.BundleFlavor(flavor)
}
log.Infof("request for flavor %v", bf)
var result *bundler.Bundle
switch matched[0] {
case "domain":
bundle, err := h.bundler.BundleFromRemote(blob["domain"], blob["ip"], bf)
if err != nil {
log.Warningf("couldn't bundle from remote: %v", err)
return err
}
result = bundle
case "certificate":
bundle, err := h.bundler.BundleFromPEM([]byte(blob["certificate"]), []byte(blob["private_key"]), bf)
if err != nil {
log.Warning("bad PEM certifcate or private key")
return err
}
serverName := blob["domain"]
ip := blob["ip"]
if serverName != "" {
err := bundle.Cert.VerifyHostname(serverName)
if err != nil {
return errors.Wrap(errors.CertificateError, errors.VerifyFailed, err)
}
}
if ip != "" {
err := bundle.Cert.VerifyHostname(ip)
if err != nil {
return errors.Wrap(errors.CertificateError, errors.VerifyFailed, err)
}
}
result = bundle
}
log.Info("wrote response")
return api.SendResponse(w, result)
}
// 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")
req := new(csr.CertificateRequest)
body, err := ioutil.ReadAll(r.Body)
if err != nil {
log.Warningf("failed to read request body: %v", err)
return errors.NewBadRequest(err)
}
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
}
// Handle responds to requests for the CA to sign the certificate request
// present in the "certificate_request" parameter for the host named
// in the "hostname" parameter. The certificate should be PEM-encoded. If
// provided, subject information from the "subject" parameter will be used
// in place of the subject information from the CSR.
func (h *Handler) Handle(w http.ResponseWriter, r *http.Request) error {
log.Info("signature request received")
body, err := ioutil.ReadAll(r.Body)
if err != nil {
return err
}
r.Body.Close()
var req jsonSignRequest
err = json.Unmarshal(body, &req)
if err != nil {
return errors.NewBadRequestString("Unable to parse sign request")
}
signReq := jsonReqToTrue(req)
if signReq.Hosts == nil {
return errors.NewBadRequestString("missing parameter 'hostname' or 'hosts'")
}
if req.Request == "" {
return errors.NewBadRequestString("missing parameter 'certificate_request'")
}
var cert []byte
var profile *config.SigningProfile
policy := h.signer.Policy()
if policy != nil && policy.Profiles != nil && req.Profile != "" {
profile = policy.Profiles[req.Profile]
}
if profile == nil && policy != nil {
profile = policy.Default
}
if profile.Provider != nil {
log.Error("profile requires authentication")
return errors.NewBadRequestString("authentication required")
}
cert, err = h.signer.Sign(signReq)
if err != nil {
log.Warningf("failed to sign request: %v", err)
return err
}
result := map[string]string{"certificate": string(cert)}
log.Info("wrote response")
return api.SendResponse(w, result)
}
// Handle accepts client information requests, and uses the label to
// look up the signer whose public certificate should be retrieved. If
// the label is empty, the default label is used.
func (h *MultiHandler) Handle(w http.ResponseWriter, r *http.Request) error {
req := new(client.InfoReq)
body, err := ioutil.ReadAll(r.Body)
if err != nil {
log.Warningf("failed to read request body: %v", err)
return errors.NewBadRequest(err)
}
err = json.Unmarshal(body, req)
if err != nil {
log.Warningf("failed to unmarshal request: %v", err)
return errors.NewBadRequest(err)
}
log.Debug("checking label")
if req.Label == "" {
req.Label = h.defaultLabel
}
if _, ok := h.signers[req.Label]; !ok {
log.Warningf("request for invalid endpoint")
return errors.NewBadRequestString("bad label")
}
log.Debug("getting cert")
cert, err := h.signers[req.Label].Certificate("", req.Profile)
if err != nil {
log.Infof("error getting certificate: %v", err)
return err
}
resp := client.InfoResp{
Certificate: bundler.PemBlockToString(&pem.Block{Type: "CERTIFICATE", Bytes: cert.Raw}),
}
response := api.NewSuccessResponse(resp)
w.Header().Set("Content-Type", "application/json")
enc := json.NewEncoder(w)
return enc.Encode(response)
}
// ProcessRequest validates and processes the incoming request. It is
// a wrapper around a validator and the ParseRequest function.
func (g *Generator) ProcessRequest(req *CertificateRequest) (csr, key []byte, err error) {
log.Info("generate received request")
err = g.Validator(req)
if err != nil {
log.Warningf("invalid request: %v", err)
return
}
csr, key, err = ParseRequest(req)
if err != nil {
return nil, nil, err
}
return
}
// scanHandler is an HTTP handler that accepts GET parameters for host (required)
// family and scanner, and uses these to perform scans, returning a JSON blob result.
func scanHandler(w http.ResponseWriter, r *http.Request) error {
log.Info("setting up scan handler")
err := r.ParseForm()
log.Info(r.Form)
if err != nil {
log.Warningf("failed to parse body: %v", err)
return errors.NewBadRequest(err)
}
if len(r.Form["host"]) == 0 {
log.Warningf("no host given")
return errors.NewBadRequestString("no host given")
}
host := r.Form["host"][0]
var family, scanner string
if len(r.Form["family"]) > 0 {
family = r.Form["family"][0]
}
if len(r.Form["scanner"]) > 0 {
scanner = r.Form["scanner"][0]
}
results, err := scan.Default.RunScans(host, family, scanner)
if err != nil {
log.Warningf("%v", err)
return errors.NewBadRequest(err)
}
response := api.NewSuccessResponse(results)
enc := json.NewEncoder(w)
err = enc.Encode(response)
return err
}
// registerHandlers instantiates various handlers and associate them to corresponding endpoints.
func registerHandlers(c cli.Config) error {
log.Info("Setting up signer endpoint")
s, err := sign.SignerFromConfig(c)
if err != nil {
log.Warningf("sign and authsign endpoints are disabled: %v", err)
} else {
if signHandler, err := apisign.NewHandlerFromSigner(s); err == nil {
log.Info("Assigning handler to /sign")
http.Handle("/api/v1/cfssl/sign", signHandler)
} else {
log.Warningf("endpoint '/api/v1/cfssl/sign' is disabled: %v", err)
}
if signHandler, err := apisign.NewAuthHandlerFromSigner(s); err == nil {
log.Info("Assigning handler to /authsign")
http.Handle("/api/v1/cfssl/authsign", signHandler)
} else {
log.Warningf("endpoint '/api/v1/cfssl/authsign' is disabled: %v", err)
}
}
log.Info("Setting up info endpoint")
infoHandler, err := info.NewHandler(s)
if err != nil {
log.Warningf("endpoint '/api/v1/cfssl/info' is disabled: %v", err)
} else {
http.Handle("/api/v1/cfssl/info", infoHandler)
}
log.Info("Setting up new cert endpoint")
if err != nil {
log.Errorf("endpoint '/api/v1/cfssl/newcert' is disabled")
} else {
newCertGenerator := generator.NewCertGeneratorHandlerFromSigner(generator.CSRValidate, s)
http.Handle("/api/v1/cfssl/newcert", newCertGenerator)
}
log.Info("Setting up bundler endpoint")
bundleHandler, err := bundle.NewHandler(c.CABundleFile, c.IntBundleFile)
if err != nil {
log.Warningf("endpoint '/api/v1/cfssl/bundle' is disabled: %v", err)
} else {
http.Handle("/api/v1/cfssl/bundle", bundleHandler)
}
log.Info("Setting up CSR endpoint")
generatorHandler, err := generator.NewHandler(generator.CSRValidate)
if err != nil {
log.Errorf("Failed to set up CSR endpoint: %v", err)
return err
}
http.Handle("/api/v1/cfssl/newkey", generatorHandler)
log.Info("Setting up initial CA endpoint")
http.Handle("/api/v1/cfssl/init_ca", initca.NewHandler())
log.Info("Setting up scan endpoint")
http.Handle("/api/v1/cfssl/scan", scan.NewHandler())
log.Info("Setting up scaninfo endpoint")
http.Handle("/api/v1/cfssl/scaninfo", scan.NewInfoHandler())
log.Info("Handler set up complete.")
return nil
}
// Handle responds to requests for the CA to generate a new private
// key and certificate on behalf of the client. The format for these
// requests is documented in the API documentation.
func (cg *CertGeneratorHandler) Handle(w http.ResponseWriter, r *http.Request) error {
log.Info("request for CSR")
req := new(genSignRequest)
body, err := ioutil.ReadAll(r.Body)
if err != nil {
log.Warningf("failed to read request body: %v", err)
return errors.NewBadRequest(err)
}
err = json.Unmarshal(body, req)
if err != nil {
log.Warningf("failed to unmarshal request: %v", err)
return errors.NewBadRequest(err)
}
if req.Request == nil {
log.Warning("empty request received")
return errors.NewBadRequestString("missing request section")
}
if req.Request.CA != nil {
log.Warningf("request received with CA section")
return errors.NewBadRequestString("ca section only permitted in initca")
}
csr, key, err := cg.generator.ProcessRequest(req.Request)
if err != nil {
log.Warningf("failed to process CSR: %v", err)
// The validator returns a *cfssl/errors.HttpError
return err
}
var certPEM []byte
var profile *config.SigningProfile
policy := cg.signer.Policy()
if policy != nil && policy.Profiles != nil && req.Profile != "" {
profile = policy.Profiles[req.Profile]
}
if profile == nil && policy != nil {
profile = policy.Default
}
// This API does not override the subject because it was already added to the CSR
signReq := signer.SignRequest{
Hosts: signer.SplitHosts(req.Hostname),
Request: string(csr),
Profile: req.Profile,
Label: req.Label,
}
certBytes, err := cg.signer.Sign(signReq)
if err != nil {
log.Warningf("failed to sign request: %v", err)
return err
}
reqSum, err := computeSum(csr)
if err != nil {
return errors.NewBadRequest(err)
}
certSum, err := computeSum(certBytes)
if err != nil {
return errors.NewBadRequest(err)
}
result := map[string]interface{}{
"private_key": string(key),
"certificate_request": string(csr),
"certificate": string(certPEM),
"sums": map[string]Sum{
"certificate_request": reqSum,
"certificate": certSum,
},
}
return api.SendResponse(w, result)
}
