Exemple #1
0
func mustNewCA() (string, string) {
	cert.KeyBits = 512
	caCert, caKey, err := cert.NewCA("juju testing", time.Now().AddDate(10, 0, 0))
	if err != nil {
		panic(err)
	}
	return string(caCert), string(caKey)
}
Exemple #2
0
func (certSuite) TestWithNonUTCExpiry(c *gc.C) {
	expiry, err := time.Parse("2006-01-02 15:04:05.999999999 -0700 MST", "2012-11-28 15:53:57 +0100 CET")
	c.Assert(err, gc.IsNil)
	certPEM, keyPEM, err := cert.NewCA("foo", expiry)
	xcert, err := cert.ParseCert(certPEM)
	c.Assert(err, gc.IsNil)
	c.Assert(xcert.NotAfter.Equal(expiry), gc.Equals, true)

	var noHostnames []string
	certPEM, _, err = cert.NewServer(certPEM, keyPEM, expiry, noHostnames)
	xcert, err = cert.ParseCert(certPEM)
	c.Assert(err, gc.IsNil)
	c.Assert(xcert.NotAfter.Equal(expiry), gc.Equals, true)
}
Exemple #3
0
// ensureCertificates ensures that a CA certificate,
// server certificate, and private key exist in the log
// directory, and writes them if not. The CA certificate
// is entered into the environment configuration to be
// picked up by other agents.
func (h *RsyslogConfigHandler) ensureCertificates() error {
	// We write ca-cert.pem last, after propagating into state.
	// If it's there, then there's nothing to do. Otherwise,
	// start over.
	caCertPEM := h.syslogConfig.CACertPath()
	if _, err := os.Stat(caCertPEM); err == nil {
		return nil
	}

	// Files must be chowned to syslog:adm.
	syslogUid, syslogGid, err := lookupUser("syslog")
	if err != nil {
		return err
	}

	// Generate a new CA and server cert/key pairs.
	// The CA key will be discarded after the server
	// cert has been generated.
	expiry := time.Now().UTC().AddDate(10, 0, 0)
	caCertPEM, caKeyPEM, err := cert.NewCA("rsyslog", expiry)
	if err != nil {
		return err
	}
	rsyslogCertPEM, rsyslogKeyPEM, err := cert.NewServer(caCertPEM, caKeyPEM, expiry, nil)
	if err != nil {
		return err
	}

	// Update the environment config with the CA cert,
	// so clients can configure rsyslog.
	if err := h.st.SetRsyslogCert(caCertPEM); err != nil {
		return err
	}

	// Write the certificates and key. The CA certificate must be written last for idempotency.
	for _, pair := range []struct {
		path string
		data string
	}{
		{h.syslogConfig.ServerCertPath(), rsyslogCertPEM},
		{h.syslogConfig.ServerKeyPath(), rsyslogKeyPEM},
		{h.syslogConfig.CACertPath(), caCertPEM},
	} {
		if err := writeFileAtomic(pair.path, []byte(pair.data), 0600, syslogUid, syslogGid); err != nil {
			return err
		}
	}
	return nil
}
Exemple #4
0
func (certSuite) TestNewCA(c *gc.C) {
	expiry := roundTime(time.Now().AddDate(0, 0, 1))
	caCertPEM, caKeyPEM, err := cert.NewCA("foo", expiry)
	c.Assert(err, gc.IsNil)

	caCert, caKey, err := cert.ParseCertAndKey(caCertPEM, caKeyPEM)
	c.Assert(err, gc.IsNil)

	c.Assert(caKey, gc.FitsTypeOf, (*rsa.PrivateKey)(nil))
	c.Assert(caCert.Subject.CommonName, gc.Equals, `juju-generated CA for environment "foo"`)
	c.Assert(caCert.NotAfter.Equal(expiry), gc.Equals, true)
	c.Assert(caCert.BasicConstraintsValid, gc.Equals, true)
	c.Assert(caCert.IsCA, gc.Equals, true)
	//c.Assert(caCert.MaxPathLen, Equals, 0)	TODO it ends up as -1 - check that this is ok.
}
Exemple #5
0
func (certSuite) TestVerify(c *gc.C) {
	now := time.Now()
	caCert, caKey, err := cert.NewCA("foo", now.Add(1*time.Minute))
	c.Assert(err, gc.IsNil)

	var noHostnames []string
	srvCert, _, err := cert.NewServer(caCert, caKey, now.Add(3*time.Minute), noHostnames)
	c.Assert(err, gc.IsNil)

	err = cert.Verify(srvCert, caCert, now)
	c.Assert(err, gc.IsNil)

	err = cert.Verify(srvCert, caCert, now.Add(55*time.Second))
	c.Assert(err, gc.IsNil)

	// TODO(rog) why does this succeed?
	// err = cert.Verify(srvCert, caCert, now.Add(-1 * time.Minute))
	//c.Check(err, gc.ErrorMatches, "x509: certificate has expired or is not yet valid")

	err = cert.Verify(srvCert, caCert, now.Add(2*time.Minute))
	c.Check(err, gc.ErrorMatches, "x509: certificate has expired or is not yet valid")

	caCert2, caKey2, err := cert.NewCA("bar", now.Add(1*time.Minute))
	c.Assert(err, gc.IsNil)

	// Check original server certificate against wrong CA.
	err = cert.Verify(srvCert, caCert2, now)
	c.Check(err, gc.ErrorMatches, "x509: certificate signed by unknown authority")

	srvCert2, _, err := cert.NewServer(caCert2, caKey2, now.Add(1*time.Minute), noHostnames)
	c.Assert(err, gc.IsNil)

	// Check new server certificate against original CA.
	err = cert.Verify(srvCert2, caCert, now)
	c.Check(err, gc.ErrorMatches, "x509: certificate signed by unknown authority")
}
Exemple #6
0
// ensureCertificate generates a new CA certificate and
// attaches it to the given environment configuration,
// unless the configuration already has one.
func ensureCertificate(cfg *config.Config) (*config.Config, error) {
	_, hasCACert := cfg.CACert()
	_, hasCAKey := cfg.CAPrivateKey()
	if hasCACert && hasCAKey {
		return cfg, nil
	}
	if hasCACert && !hasCAKey {
		return nil, fmt.Errorf("environment configuration with a certificate but no CA private key")
	}

	caCert, caKey, err := cert.NewCA(cfg.Name(), time.Now().UTC().AddDate(10, 0, 0))
	if err != nil {
		return nil, err
	}
	return cfg.Apply(map[string]interface{}{
		"ca-cert":        string(caCert),
		"ca-private-key": string(caKey),
	})
}
Exemple #7
0
func (certSuite) TestNewServer(c *gc.C) {
	expiry := roundTime(time.Now().AddDate(1, 0, 0))
	caCertPEM, caKeyPEM, err := cert.NewCA("foo", expiry)
	c.Assert(err, gc.IsNil)

	caCert, _, err := cert.ParseCertAndKey(caCertPEM, caKeyPEM)
	c.Assert(err, gc.IsNil)

	var noHostnames []string
	srvCertPEM, srvKeyPEM, err := cert.NewServer(caCertPEM, caKeyPEM, expiry, noHostnames)
	c.Assert(err, gc.IsNil)

	srvCert, srvKey, err := cert.ParseCertAndKey(srvCertPEM, srvKeyPEM)
	c.Assert(err, gc.IsNil)
	c.Assert(srvCert.Subject.CommonName, gc.Equals, "*")
	c.Assert(srvCert.NotAfter.Equal(expiry), gc.Equals, true)
	c.Assert(srvCert.BasicConstraintsValid, gc.Equals, false)
	c.Assert(srvCert.IsCA, gc.Equals, false)
	c.Assert(srvCert.ExtKeyUsage, gc.DeepEquals, []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth})

	checkTLSConnection(c, caCert, srvCert, srvKey)
}