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package control
import (
"context"
"crypto/x509"
"encoding/json"
"flag"
"os"
"strings"
"time"
"v2ray.com/core/common"
"v2ray.com/core/common/protocol/tls/cert"
"v2ray.com/core/common/task"
)
type stringList []string
func (l *stringList) String() string {
return "String list"
}
func (l *stringList) Set(v string) error {
if v == "" {
return newError("empty value")
}
*l = append(*l, v)
return nil
}
type jsonCert struct {
Certificate []string `json:"certificate"`
Key []string `json:"key"`
}
type CertificateCommand struct {
}
func (c *CertificateCommand) Name() string {
return "cert"
}
func (c *CertificateCommand) Description() Description {
return Description{
Short: "Generate TLS certificates.",
Usage: []string{
"v2ctl cert [--ca] [--domain=v2ray.com] [--expire=240h]",
"Generate new TLS certificate",
"--ca The new certificate is a CA certificate",
"--domain Common name for the certificate",
"--expire Time until certificate expires. 240h = 10 days.",
},
}
}
func (c *CertificateCommand) printJSON(certificate *cert.Certificate) {
certPEM, keyPEM := certificate.ToPEM()
jCert := &jsonCert{
Certificate: strings.Split(strings.TrimSpace(string(certPEM)), "\n"),
Key: strings.Split(strings.TrimSpace(string(keyPEM)), "\n"),
}
content, err := json.MarshalIndent(jCert, "", " ")
common.Must(err)
os.Stdout.Write(content)
os.Stdout.WriteString("\n")
}
func (c *CertificateCommand) writeFile(content []byte, name string) error {
f, err := os.Create(name)
if err != nil {
return err
}
defer f.Close()
return common.Error2(f.Write(content))
}
func (c *CertificateCommand) printFile(certificate *cert.Certificate, name string) error {
certPEM, keyPEM := certificate.ToPEM()
return task.Run(context.Background(), func() error {
return c.writeFile(certPEM, name+"_cert.pem")
}, func() error {
return c.writeFile(keyPEM, name+"_key.pem")
})
}
func (c *CertificateCommand) Execute(args []string) error {
fs := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
var domainNames stringList
fs.Var(&domainNames, "domain", "Domain name for the certificate")
commonName := fs.String("name", "V2Ray Inc", "The common name of this certificate")
organization := fs.String("org", "V2Ray Inc", "Organization of the certificate")
isCA := fs.Bool("ca", false, "Whether this certificate is a CA")
jsonOutput := fs.Bool("json", true, "Print certificate in JSON format")
fileOutput := fs.String("file", "", "Save certificate in file.")
expire := fs.Duration("expire", time.Hour*24*90 /* 90 days */, "Time until the certificate expires. Default value 3 months.")
if err := fs.Parse(args); err != nil {
return err
}
var opts []cert.Option
if *isCA {
opts = append(opts, cert.Authority(*isCA))
opts = append(opts, cert.KeyUsage(x509.KeyUsageCertSign|x509.KeyUsageKeyEncipherment|x509.KeyUsageDigitalSignature))
}
opts = append(opts, cert.NotAfter(time.Now().Add(*expire)))
opts = append(opts, cert.CommonName(*commonName))
if len(domainNames) > 0 {
opts = append(opts, cert.DNSNames(domainNames...))
}
opts = append(opts, cert.Organization(*organization))
cert, err := cert.Generate(nil, opts...)
if err != nil {
return newError("failed to generate TLS certificate").Base(err)
}
if *jsonOutput {
c.printJSON(cert)
}
if len(*fileOutput) > 0 {
if err := c.printFile(cert, *fileOutput); err != nil {
return err
}
}
return nil
}
func init() {
common.Must(RegisterCommand(&CertificateCommand{}))
}
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