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Feature: Integrate crypto/tls/generate_cert.go command

pull/500/merge
Unknwon 10 years ago
parent
commit
135d3733b3
  1. 158
      cmd/cert.go
  2. 2
      conf/app.ini
  3. 1
      gogs.go
  4. 6
      modules/log/log.go

158
cmd/cert.go

@ -0,0 +1,158 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Copyright 2014 The Gogs Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package cmd
import (
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"crypto/x509/pkix"
"encoding/pem"
"log"
"math/big"
"net"
"os"
"strings"
"time"
"github.com/codegangsta/cli"
)
var CmdCert = cli.Command{
Name: "cert",
Usage: "Generate self-signed certificate",
Description: `Generate a self-signed X.509 certificate for a TLS server.
Outputs to 'cert.pem' and 'key.pem' and will overwrite existing files.`,
Action: runCert,
Flags: []cli.Flag{
cli.StringFlag{"host", "", "Comma-separated hostnames and IPs to generate a certificate for", ""},
cli.StringFlag{"ecdsa-curve", "", "ECDSA curve to use to generate a key. Valid values are P224, P256, P384, P521", ""},
cli.IntFlag{"rsa-bits", 2048, "Size of RSA key to generate. Ignored if --ecdsa-curve is set", ""},
cli.StringFlag{"start-date", "", "Creation date formatted as Jan 1 15:04:05 2011", ""},
cli.DurationFlag{"duration", 365 * 24 * time.Hour, "Duration that certificate is valid for", ""},
cli.BoolFlag{"ca", "whether this cert should be its own Certificate Authority", ""},
},
}
func publicKey(priv interface{}) interface{} {
switch k := priv.(type) {
case *rsa.PrivateKey:
return &k.PublicKey
case *ecdsa.PrivateKey:
return &k.PublicKey
default:
return nil
}
}
func pemBlockForKey(priv interface{}) *pem.Block {
switch k := priv.(type) {
case *rsa.PrivateKey:
return &pem.Block{Type: "RSA PRIVATE KEY", Bytes: x509.MarshalPKCS1PrivateKey(k)}
case *ecdsa.PrivateKey:
b, err := x509.MarshalECPrivateKey(k)
if err != nil {
log.Fatal("unable to marshal ECDSA private key: %v", err)
}
return &pem.Block{Type: "EC PRIVATE KEY", Bytes: b}
default:
return nil
}
}
func runCert(ctx *cli.Context) {
if len(ctx.String("host")) == 0 {
log.Fatal("Missing required --host parameter")
}
var priv interface{}
var err error
switch ctx.String("ecdsa-curve") {
case "":
priv, err = rsa.GenerateKey(rand.Reader, ctx.Int("rsa-bits"))
case "P224":
priv, err = ecdsa.GenerateKey(elliptic.P224(), rand.Reader)
case "P256":
priv, err = ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
case "P384":
priv, err = ecdsa.GenerateKey(elliptic.P384(), rand.Reader)
case "P521":
priv, err = ecdsa.GenerateKey(elliptic.P521(), rand.Reader)
default:
log.Fatalf("Unrecognized elliptic curve: %q", ctx.String("ecdsa-curve"))
}
if err != nil {
log.Fatalf("Failed to generate private key: %s", err)
}
var notBefore time.Time
if len(ctx.String("start-date")) == 0 {
notBefore = time.Now()
} else {
notBefore, err = time.Parse("Jan 2 15:04:05 2006", ctx.String("start-date"))
if err != nil {
log.Fatalf("Failed to parse creation date: %s", err)
}
}
notAfter := notBefore.Add(ctx.Duration("duration"))
serialNumberLimit := new(big.Int).Lsh(big.NewInt(1), 128)
serialNumber, err := rand.Int(rand.Reader, serialNumberLimit)
if err != nil {
log.Fatalf("Failed to generate serial number: %s", err)
}
template := x509.Certificate{
SerialNumber: serialNumber,
Subject: pkix.Name{
Organization: []string{"Acme Co"},
},
NotBefore: notBefore,
NotAfter: notAfter,
KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
BasicConstraintsValid: true,
}
hosts := strings.Split(ctx.String("host"), ",")
for _, h := range hosts {
if ip := net.ParseIP(h); ip != nil {
template.IPAddresses = append(template.IPAddresses, ip)
} else {
template.DNSNames = append(template.DNSNames, h)
}
}
if ctx.Bool("ca") {
template.IsCA = true
template.KeyUsage |= x509.KeyUsageCertSign
}
derBytes, err := x509.CreateCertificate(rand.Reader, &template, &template, publicKey(priv), priv)
if err != nil {
log.Fatalf("Failed to create certificate: %s", err)
}
certOut, err := os.Create("cert.pem")
if err != nil {
log.Fatalf("Failed to open cert.pem for writing: %s", err)
}
pem.Encode(certOut, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes})
certOut.Close()
log.Println("Written cert.pem")
keyOut, err := os.OpenFile("key.pem", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
if err != nil {
log.Fatal("failed to open key.pem for writing: %v", err)
}
pem.Encode(keyOut, pemBlockForKey(priv))
keyOut.Close()
log.Println("Written key.pem")
}

2
conf/app.ini

@ -21,7 +21,7 @@ OFFLINE_MODE = false
DISABLE_ROUTER_LOG = false
; Generate steps:
; $ cd path/to/gogs/custom/https
; $ go run $GOROOT/src/pkg/crypto/tls/generate_cert.go -ca=true -duration=8760h0m0s -host=myhost.example.com
; $ ./gogs cert -ca=true -duration=8760h0m0s -host=myhost.example.com
CERT_FILE = custom/https/cert.pem
KEY_FILE = custom/https/key.pem
; Upper level of template and static file path

1
gogs.go

@ -35,6 +35,7 @@ func main() {
cmd.CmdUpdate,
cmd.CmdFix,
cmd.CmdDump,
cmd.CmdCert,
}
app.Flags = append(app.Flags, []cli.Flag{}...)
app.Run(os.Args)

6
modules/log/log.go

@ -87,6 +87,12 @@ func Fatal(skip int, format string, v ...interface{}) {
os.Exit(1)
}
func Close() {
for _, l := range loggers {
l.Close()
}
}
// .___ __ _____
// | | _____/ |_ ____________/ ____\____ ____ ____
// | |/ \ __\/ __ \_ __ \ __\\__ \ _/ ___\/ __ \

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