func getInfoFromRemote(c cli.Config) (resp *info.Resp, err error) {
req := new(info.Req)
req.Label = c.Label
req.Profile = c.Profile
cert, err := helpers.LoadClientCertificate(c.MutualTLSCertFile, c.MutualTLSKeyFile)
if err != nil {
return
}
remoteCAs, err := helpers.LoadPEMCertPool(c.TLSRemoteCAs)
if err != nil {
return
}
serv := client.NewServerTLS(c.Remote, helpers.CreateTLSConfig(remoteCAs, cert))
reqJSON, _ := json.Marshal(req)
resp, err = serv.Info(reqJSON)
if err != nil {
return
}
_, err = helpers.ParseCertificatePEM([]byte(resp.Certificate))
if err != nil {
return
}
return
}
// LoadRootCAs loads the default root certificate authorities from file.
func LoadRootCAs(caBundleFile string) (err error) {
if caBundleFile != "" {
log.Debugf("Loading scan RootCAs: %s", caBundleFile)
RootCAs, err = helpers.LoadPEMCertPool(caBundleFile)
}
return
}
func TestParseBundles(t *testing.T) {
for _, file := range bundleFiles {
if _, err := helpers.LoadPEMCertPool(file); err != nil {
t.Fatal(err)
}
}
}
// NewCFSSL produces a new CFSSL root.
func NewCFSSL(metadata map[string]string) ([]*x509.Certificate, error) {
host, ok := metadata["host"]
if !ok {
return nil, errors.New("transport: CFSSL root provider requires a host")
}
label := metadata["label"]
profile := metadata["profile"]
cert, err := helpers.LoadClientCertificate(metadata["mutual-tls-cert"], metadata["mutual-tls-key"])
if err != nil {
return nil, err
}
remoteCAs, err := helpers.LoadPEMCertPool(metadata["tls-remote-ca"])
if err != nil {
return nil, err
}
srv := client.NewServerTLS(host, helpers.CreateTLSConfig(remoteCAs, cert))
data, err := json.Marshal(info.Req{Label: label, Profile: profile})
if err != nil {
return nil, err
}
resp, err := srv.Info(data)
if err != nil {
return nil, err
}
return helpers.ParseCertificatesPEM([]byte(resp.Certificate))
}
// SetRemoteCAsFromFile reads root CAs from file and updates the properties to set remote CAs for TLS
// remote requests
func (p *Signing) SetRemoteCAsFromFile(caFile string) error {
if caFile != "" {
remoteCAs, err := helpers.LoadPEMCertPool(caFile)
if err != nil {
return err
}
p.SetRemoteCAs(remoteCAs)
}
return nil
}
func remoteTLSSign(t *testing.T, isMutual bool) {
certPool, err := helpers.LoadPEMCertPool(testCaFile)
if err != nil {
t.Fatal(err)
}
var clientCA *x509.CertPool
if isMutual {
clientCA = certPool
}
remoteServer := newTestSignServer(t, true, clientCA)
defer closeTestServer(t, remoteServer)
remoteConfig := testsuite.NewConfig(t, []byte(validMinimalRemoteConfig))
// override with full server URL to get https in protocol"
remoteConfig.Signing.OverrideRemotes(remoteServer.URL)
remoteConfig.Signing.SetRemoteCAs(certPool)
if isMutual {
remoteConfig.Signing.SetClientCertKeyPairFromFile(testClientFile, testClientKeyFile)
}
verifyRemoteSign(t, remoteConfig)
}
// NewCFSSLProvider takes the configuration information from an
// Identity (and an optional default remote), returning a CFSSL
// instance. There should be a profile in id called "cfssl", which
// should contain label and profile fields as needed.
func NewCFSSLProvider(id *core.Identity, defaultRemote client.Remote) (*CFSSL, error) {
if id == nil {
return nil, errors.New("transport: the identity hasn't been initialised. Has it been loaded from disk?")
}
cap := &CFSSL{
DefaultRemote: defaultRemote,
}
cfssl := id.Profiles["cfssl"]
if cfssl != nil {
cap.Label = cfssl["label"]
cap.Profile = cfssl["profile"]
if cap.DefaultRemote == nil {
cert, err := helpers.LoadClientCertificate(cfssl["mutual-tls-cert"], cfssl["mutual-tls-key"])
if err != nil {
return nil, err
}
remoteCAs, err := helpers.LoadPEMCertPool(cfssl["tls-remote-ca"])
if err != nil {
return nil, err
}
cap.DefaultRemote = client.NewServerTLS(cfssl["remote"], helpers.CreateTLSConfig(remoteCAs, cert))
}
cap.DefaultAuth.Type = cfssl["auth-type"]
cap.DefaultAuth.Key = cfssl["auth-key"]
}
err := cap.setRemoteAndAuth()
if err != nil {
return nil, err
}
return cap, nil
}
// serverMain is the command line entry point to the API server. It sets up a
// new HTTP server to handle sign, bundle, and validate requests.
func serverMain(args []string, c cli.Config) error {
conf = c
// serve doesn't support arguments.
if len(args) > 0 {
return errors.New("argument is provided but not defined; please refer to the usage by flag -h")
}
bundler.IntermediateStash = conf.IntDir
var err error
if err = ubiquity.LoadPlatforms(conf.Metadata); err != nil {
return err
}
if c.DBConfigFile != "" {
db, err = dbconf.DBFromConfig(c.DBConfigFile)
if err != nil {
return err
}
}
log.Info("Initializing signer")
if s, err = sign.SignerFromConfigAndDB(c, db); err != nil {
log.Warningf("couldn't initialize signer: %v", err)
}
if ocspSigner, err = ocspsign.SignerFromConfig(c); err != nil {
log.Warningf("couldn't initialize ocsp signer: %v", err)
}
registerHandlers()
addr := net.JoinHostPort(conf.Address, strconv.Itoa(conf.Port))
if conf.TLSCertFile == "" || conf.TLSKeyFile == "" {
log.Info("Now listening on ", addr)
return http.ListenAndServe(addr, nil)
}
if conf.MutualTLSCAFile != "" {
clientPool, err := helpers.LoadPEMCertPool(conf.MutualTLSCAFile)
if err != nil {
return fmt.Errorf("failed to load mutual TLS CA file: %s", err)
}
server := http.Server{
Addr: addr,
TLSConfig: &tls.Config{
ClientAuth: tls.RequireAndVerifyClientCert,
ClientCAs: clientPool,
},
}
if conf.MutualTLSCNRegex != "" {
log.Debugf(`Requiring CN matches regex "%s" for client connections`, conf.MutualTLSCNRegex)
re, err := regexp.Compile(conf.MutualTLSCNRegex)
if err != nil {
return fmt.Errorf("malformed CN regex: %s", err)
}
server.Handler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if r != nil && r.TLS != nil && len(r.TLS.PeerCertificates) > 0 {
if re.MatchString(r.TLS.PeerCertificates[0].Subject.CommonName) {
http.DefaultServeMux.ServeHTTP(w, r)
return
}
log.Warningf(`Rejected client cert CN "%s" does not match regex %s`,
r.TLS.PeerCertificates[0].Subject.CommonName, conf.MutualTLSCNRegex)
}
http.Error(w, "Invalid CN", http.StatusForbidden)
})
}
log.Info("Now listening with mutual TLS on https://", addr)
return server.ListenAndServeTLS(conf.TLSCertFile, conf.TLSKeyFile)
}
log.Info("Now listening on https://", addr)
return http.ListenAndServeTLS(addr, conf.TLSCertFile, conf.TLSKeyFile, nil)
}
func main() {
var caFile, intFile string
var forceIntermediateBundle, revexp, verbose bool
flag.StringVar(&caFile, "ca", "", "CA certificate `bundle`")
flag.StringVar(&intFile, "i", "", "intermediate `bundle`")
flag.BoolVar(&forceIntermediateBundle, "f", false,
"force the use of the intermediate bundle, ignoring any intermediates bundled with certificate")
flag.BoolVar(&revexp, "r", false, "print revocation and expiry information")
flag.BoolVar(&verbose, "v", false, "verbose")
flag.Parse()
var roots *x509.CertPool
if caFile != "" {
var err error
if verbose {
fmt.Println("[+] loading root certificates from", caFile)
}
roots, err = helpers.LoadPEMCertPool(caFile)
die.If(err)
}
var ints *x509.CertPool
if intFile != "" {
var err error
if verbose {
fmt.Println("[+] loading intermediate certificates from", intFile)
}
ints, err = helpers.LoadPEMCertPool(caFile)
die.If(err)
} else {
ints = x509.NewCertPool()
}
if flag.NArg() != 1 {
fmt.Fprintf(os.Stderr, "Usage: %s [-ca bundle] [-i bundle] cert",
lib.ProgName())
}
fileData, err := ioutil.ReadFile(flag.Arg(0))
die.If(err)
chain, err := helpers.ParseCertificatesPEM(fileData)
die.If(err)
if verbose {
fmt.Printf("[+] %s has %d certificates\n", flag.Arg(0), len(chain))
}
cert := chain[0]
if len(chain) > 1 {
if !forceIntermediateBundle {
for _, intermediate := range chain[1:] {
if verbose {
fmt.Printf("[+] adding intermediate with SKI %x\n", intermediate.SubjectKeyId)
}
ints.AddCert(intermediate)
}
}
}
opts := x509.VerifyOptions{
Intermediates: ints,
Roots: roots,
KeyUsages: []x509.ExtKeyUsage{x509.ExtKeyUsageAny},
}
_, err = cert.Verify(opts)
if err != nil {
fmt.Fprintf(os.Stderr, "Verification failed: %v\n", err)
os.Exit(1)
}
if verbose {
fmt.Println("OK")
}
if revexp {
printRevocation(cert)
}
}
