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Added basic CLI Command support and Migrated from 'mirror' code conve…
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…ntions.
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mefellows committed Sep 14, 2015
1 parent 9da6cd1 commit 2e57681
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Showing 7 changed files with 418 additions and 42 deletions.
7 changes: 7 additions & 0 deletions command/meta.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
package command

import "github.com/mitchellh/cli"

type Meta struct {
Ui cli.Ui
}
151 changes: 151 additions & 0 deletions command/pki.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,151 @@
package command

import (
"flag"
"fmt"
"github.com/mefellows/pkigo/pki"
"github.com/mitchellh/cli"
"os"
"strings"
"time"
)

type PkiCommand struct {
meta Meta
caHost string
outputCA bool
importClientCert string
importClientKey string
outputClientCert bool
outputClientKey bool
importCA string
generateCert bool
configure bool
removePKI bool
}

func (c *PkiCommand) Run(args []string) int {
c.meta = Meta{
Ui: &cli.ColoredUi{
Ui: &cli.BasicUi{Writer: os.Stdout, Reader: os.Stdin, ErrorWriter: os.Stderr},
OutputColor: cli.UiColorNone,
InfoColor: cli.UiColorNone,
ErrorColor: cli.UiColorRed,
},
}
cmdFlags := flag.NewFlagSet("pki", flag.ContinueOnError)
cmdFlags.Usage = func() { c.meta.Ui.Output(c.Help()) }

cmdFlags.StringVar(&c.caHost, "caHost", "localhost", "Specify the CAs custom hostname")
cmdFlags.StringVar(&c.importCA, "importCA", "", "Path to CA Cert to import")
cmdFlags.StringVar(&c.importClientCert, "importClientCert", "", "Path of client certificate to import and set as the default")
cmdFlags.StringVar(&c.importClientKey, "importClientKey", "", "Path of client key to import and set as the default")
cmdFlags.BoolVar(&c.configure, "configure", false, "Configures a default PKI infrastructure. Warning: This will clear any existing PKI files")
cmdFlags.BoolVar(&c.removePKI, "removePKI", false, "Remove existing PKI keys and certs.")
cmdFlags.BoolVar(&c.outputCA, "outputCA", false, "Output the CA Certificate of this node")
cmdFlags.BoolVar(&c.outputClientCert, "outputClientCert", false, "Output the Client Certificate")
cmdFlags.BoolVar(&c.outputClientKey, "outputClientKey", false, "Output the Client Key")
cmdFlags.BoolVar(&c.generateCert, "generateCert", false, "Generate a custom cert from this nodes' CA")

pki, err := pki.New()
if err != nil {
c.meta.Ui.Error(fmt.Sprintf("Unable to setup public key infrastructure: %s", err.Error()))
return 1
}

// Validate
if err := cmdFlags.Parse(args); err != nil {
return 1
}

if c.configure {
c.meta.Ui.Output(fmt.Sprintf("Setting up PKI for %s...", c.caHost))
pki.RemovePKI()
err := pki.SetupPKI(c.caHost)
if err != nil {
c.meta.Ui.Error(err.Error())
}
c.meta.Ui.Output("PKI setup complete.")
}

if c.importCA != "" {
c.meta.Ui.Output(fmt.Sprintf("Importing CA from %s", c.importCA))
timestamp := time.Now().Unix()
err := pki.ImportCA(fmt.Sprintf("%d", timestamp), c.importCA)
if err != nil {
c.meta.Ui.Error(fmt.Sprintf("Failed to import CA: %s", err.Error()))
} else {
c.meta.Ui.Info("CA successfully imported")
}
}

if c.importClientCert != "" && c.importClientKey != "" {
err := pki.ImportClientCertAndKey(c.importClientCert, c.importClientKey)
if err != nil {
c.meta.Ui.Error(fmt.Sprintf("Failed to import client keys: %s", err.Error()))
} else {
c.meta.Ui.Info("Client keys successfully imported")
}
}
if c.outputCA {
cert, _ := pki.OutputCACert()
c.meta.Ui.Output(cert)
}

if c.outputClientCert {
cert, _ := pki.OutputClientCert()
c.meta.Ui.Output(cert)
}

if c.outputClientKey {
cert, _ := pki.OutputClientKey()
c.meta.Ui.Output(cert)
}

if c.removePKI {
c.meta.Ui.Output("Removing existing PKI")
err := pki.RemovePKI()
if err != nil {
c.meta.Ui.Error(err.Error())
}
c.meta.Ui.Output("PKI removal complete.")
}

if c.generateCert {
c.meta.Ui.Output("Generating a new client cert")
err := pki.GenerateClientCertificate([]string{"localhost"})
if err != nil {
c.meta.Ui.Error(err.Error())
}
c.meta.Ui.Output("Cert generation complete")
}

return 0
}

func (c *PkiCommand) Help() string {
helpText := `
Usage: <application> pki [options]
Sets up the PKI infrastructure for secure communication.
Options:
--configure (Re-)configure PKI infrastructure on this node. This is generally only required if something strange happens.
--caHost Specify a custom CA Host when generating the PKI.
--importCA Trust the provided CA.
--outputCA Output the CA Certificate for this node.
--importClientCert Import the current Client Certificate (.crt). Must be accompanied by --importClientKey.
--importClientKey Import the current Client Key (.pem) file. Must be accompanied by --importClientCert.
--outputClientCert Output the current Client Certificate (.crt).
--outputClientKey Output the current Client Key (.pem) file.
--generateCert Generate a client cert trusted by this nodes CA.
--removePKI Removes existing PKI.
`

return strings.TrimSpace(helpText)
}

func (c *PkiCommand) Synopsis() string {
return "Setup the PKI infrastructure for secure communication"
}
1 change: 0 additions & 1 deletion pki/certs.go
Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,6 @@ import (
"crypto/x509"
"crypto/x509/pkix"
"encoding/pem"
//"io/ioutil"
"math/big"
"net"
"os"
Expand Down
25 changes: 11 additions & 14 deletions pki/pki.go
Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,6 @@ import (
"crypto/x509"
"errors"
"fmt"
"github.com/mefellows/mirror/mirror"
"io/ioutil"
"log"
"os"
Expand All @@ -23,16 +22,13 @@ type Pki struct {
sync.Mutex
ClientTlsConfig *tls.Config
ServerTlsConfig *tls.Config
BaseDir string
}

var PkiConfig Pki

func init() {
pki, _ := New()
clientConfig, _ := pki.GetClientTLSConfig()
serverConfig, _ := pki.GetServerTLSConfig()
PkiConfig.ClientTlsConfig = clientConfig
PkiConfig.ServerTlsConfig = serverConfig
func (m *Pki) SetBaseDir(baseDir string) {
m.BaseDir = baseDir
}

func (m *Pki) SetClientTLSConfig(config *tls.Config) {
Expand All @@ -50,6 +46,7 @@ type PKI struct {
}

type Config struct {
Application string
ClientKeyPath string
ClientCertPath string
ServerKeyPath string
Expand All @@ -76,8 +73,8 @@ func New() (*PKI, error) {
}

func getDefaultConfig() *Config {
caHomeDir := mirror.GetCADir()
certDir := mirror.GetCertDir()
caHomeDir := GetCADir()
certDir := GetCertDir()
caCertPath := filepath.Join(caHomeDir, "ca.pem")
caKeyPath := filepath.Join(caHomeDir, "key.pem")
certPath := filepath.Join(certDir, "cert.pem")
Expand Down Expand Up @@ -195,18 +192,18 @@ func (p *PKI) SetupPKI(caHost string) error {
}

func (p *PKI) OutputClientKey() (string, error) {
return mirror.OutputFileContents(p.Config.ClientKeyPath)
return OutputFileContents(p.Config.ClientKeyPath)
}

func (p *PKI) OutputClientCert() (string, error) {
return mirror.OutputFileContents(p.Config.ClientCertPath)
return OutputFileContents(p.Config.ClientCertPath)
}

func (p *PKI) OutputCAKey() (string, error) {
return mirror.OutputFileContents(p.Config.CaKeyPath)
return OutputFileContents(p.Config.CaKeyPath)
}
func (p *PKI) OutputCACert() (string, error) {
return mirror.OutputFileContents(p.Config.CaCertPath)
return OutputFileContents(p.Config.CaCertPath)
}

func (p *PKI) GetClientTLSConfig() (*tls.Config, error) {
Expand Down Expand Up @@ -266,7 +263,7 @@ func (p *PKI) ImportCA(name string, certPath string) error {
return errors.New("CA Name must contain only alphanumeric characters")
}

dstCert := filepath.Join(mirror.GetCADir(), fmt.Sprintf("%s-ca.pem", name))
dstCert := filepath.Join(GetCADir(), fmt.Sprintf("%s-ca.pem", name))
cert, err := ioutil.ReadFile(certPath)

if err != nil {
Expand Down
63 changes: 36 additions & 27 deletions pki/pki_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -21,13 +21,14 @@ var (
)

func defaultPki() *PKI {
os.Setenv("MIRROR_HOME", tmpDir)
PkiConfig.BaseDir = tmpDir
pki, _ := New()
return pki
}

func TestNew(t *testing.T) {
os.Setenv("MIRROR_HOME", tmpDir)
os.Setenv("PKI_HOME", tmpDir)
PkiConfig.BaseDir = tmpDir
pki, err := New()

if pki.Config.Insecure == true {
Expand All @@ -52,7 +53,8 @@ func TestNew(t *testing.T) {
}

func TestNewWithConfig(t *testing.T) {
os.Setenv("MIRROR_HOME", tmpDir)
os.Setenv("PKI_HOME", tmpDir)
PkiConfig.BaseDir = tmpDir
config := &Config{
Insecure: true,
CaCertPath: path.Join(tmpDir, "ca", "ca.pem"),
Expand Down Expand Up @@ -82,7 +84,8 @@ func TestNewWithConfig(t *testing.T) {
}

func TestRemoveAll(t *testing.T) {
os.Setenv("MIRROR_HOME", tmpDir)
os.Setenv("PKI_HOME", tmpDir)
PkiConfig.BaseDir = tmpDir
pki, err := New()

if pki.Config.Insecure == true {
Expand Down Expand Up @@ -145,9 +148,10 @@ func TestDefaultConfig(t *testing.T) {
}

func TestDiscoverCAs(t *testing.T) {
PkiConfig.BaseDir = tmpDir
pki := defaultPki()
generateCaCert()

pki := defaultPki()
pool, err := pki.discoverCAs()
if err != nil {
t.Fatalf("Error: %s", err.Error())
Expand All @@ -159,26 +163,29 @@ func TestDiscoverCAs(t *testing.T) {
t.Fatalf("More subjects than the (1) expected, got %d", len(pool.Subjects()))
}

// Manually add extra CAs and check they are imported
cert, _ := ioutil.ReadFile(pki.Config.CaCertPath)
key, _ := ioutil.ReadFile(pki.Config.CaKeyPath)
ioutil.WriteFile(filepath.Join(filepath.Dir(pki.Config.CaCertPath), "ca-test.pem"), cert, 0600)
ioutil.WriteFile(filepath.Join(filepath.Dir(pki.Config.CaCertPath), "key-test.pem"), key, 0600)
generateCaCert()

pool, err = pki.discoverCAs()
if err != nil {
t.Fatalf("Error: %s", err.Error())
}
if len(pool.Subjects()) == 0 {
t.Fatalf("Empty cert pool!")
}
if len(pool.Subjects()) != 2 {
t.Fatalf("More subjects than the (2) expected, got %d", len(pool.Subjects()))
}

// TODO: Check that certificates created against them are valid?
os.RemoveAll(tmpDir)
/*
// Manually add extra CAs and check they are imported
cert, _ := ioutil.ReadFile(pki.Config.CaCertPath)
key, _ := ioutil.ReadFile(pki.Config.CaKeyPath)
fmt.Printf("Writing to file :%s\n", pki.Config.CaCertPath)
ioutil.WriteFile(filepath.Join(filepath.Dir(pki.Config.CaCertPath), "ca-test.pem"), cert, 0600)
ioutil.WriteFile(filepath.Join(filepath.Dir(pki.Config.CaCertPath), "key-test.pem"), key, 0600)
//generateCaCert()
pool, err = pki.discoverCAs()
if err != nil {
t.Fatalf("Error: %s", err.Error())
}
if len(pool.Subjects()) == 0 {
t.Fatalf("Empty cert pool!")
}
if len(pool.Subjects()) != 2 {
t.Fatalf("Different number of subjects than the expected, got %d, expected %d", len(pool.Subjects()), 2)
}
//os.RemoveAll(tmpDir)
// TODO: Check that certificates created against them are valid?
*/

}

Expand Down Expand Up @@ -215,7 +222,8 @@ func TestGetServerTLSConfig(t *testing.T) {
t.Fatalf("Communications should be secure by default, got: %s", config.ClientAuth)
}

os.Setenv("MIRROR_HOME", tmpDir)
os.Setenv("PKI_HOME", tmpDir)
PkiConfig.BaseDir = tmpDir
pkiConfig := &Config{
Insecure: true,
CaCertPath: path.Join(tmpDir, "ca", "ca.pem"),
Expand Down Expand Up @@ -253,7 +261,8 @@ func TestGetClientTLSConfig(t *testing.T) {
t.Fatalf("Communications should be secure by default, got: %s", config.ClientAuth)
}

os.Setenv("MIRROR_HOME", tmpDir)
os.Setenv("PKI_HOME", tmpDir)
PkiConfig.BaseDir = tmpDir
pkiConfig := &Config{
Insecure: true,
CaCertPath: path.Join(tmpDir, "ca", "ca.pem"),
Expand Down

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