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ssl.go
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ssl.go
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package afssl
import (
"fmt"
"strings"
"time"
)
const (
OneMouth = 730 * time.Hour
ThreeMouths = 3 * OneMouth
OneYear = 12 * OneMouth
TenYears = 10 * OneYear
)
type Config struct {
KeyBits int
Country string
Province string
City string
Organization string
OrganizationalUnit string
CommonName string
IPs []string
DelegationEnabled bool
Expiration time.Duration
}
func (config Config) Validate() (err error) {
// key
if config.KeyBits < 1 {
err = fmt.Errorf("invalid config")
return
}
// subject
empty := func(s string) bool { return strings.TrimSpace(s) == "" }
if empty(config.CommonName) || empty(config.Country) || empty(config.Province) || empty(config.Organization) || empty(config.OrganizationalUnit) {
err = fmt.Errorf("invalid config")
return
}
// exp
if config.Expiration < 24*time.Hour {
err = fmt.Errorf("invalid config")
return
}
return
}
func GenerateSSL(config Config) (caPEM []byte, caKeyPEM []byte, serverPEM []byte, serverKeyPEM []byte, clientPEM []byte, clientKeyPEM []byte, err error) {
err = config.Validate()
if err != nil {
err = fmt.Errorf("generate ssl failed, %v", err)
return
}
// ca
caCRT, caKEY, caErr := generateCA(config)
if caErr != nil {
err = fmt.Errorf("generate ssl failed, %v", caErr)
return
}
caPEM, err = encodeCRT(caKEY, caCRT, caCRT)
if err != nil {
err = fmt.Errorf("generate ssl failed, encode ca failed, %v", err)
return
}
caKeyPEM, _ = encodeKEY(caKEY)
// server
serverCRT, serverKEY, serverErr := generateServer(config)
if serverErr != nil {
err = fmt.Errorf("generate ssl failed, %v", serverErr)
return
}
serverPEM, err = encodeCRT(serverKEY, caCRT, serverCRT)
if err != nil {
err = fmt.Errorf("generate ssl failed, encode server failed, %v", err)
return
}
serverKeyPEM, _ = encodeKEY(serverKEY)
// client
clientCRT, clientKEY, clientErr := generateServer(config)
if clientErr != nil {
err = fmt.Errorf("generate ssl failed, %v", clientErr)
return
}
clientPEM, err = encodeCRT(clientKEY, caCRT, clientCRT)
if err != nil {
err = fmt.Errorf("generate ssl failed, encode client failed, %v", err)
return
}
clientKeyPEM, _ = encodeKEY(clientKEY)
return
}