lego/account.go

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package main
import (
"crypto/rsa"
"encoding/json"
"io/ioutil"
"os"
"path"
"github.com/xenolf/lego/acme"
)
// Account represents a users local saved credentials
type Account struct {
Email string `json:"email"`
key *rsa.PrivateKey
Registration *acme.RegistrationResource `json:"registration"`
conf *Configuration
}
// NewAccount creates a new account for an email address
func NewAccount(email string, conf *Configuration) *Account {
accKeysPath := conf.AccountKeysPath(email)
// TODO: move to function in configuration?
accKeyPath := accKeysPath + string(os.PathSeparator) + email + ".key"
if err := checkFolder(accKeysPath); err != nil {
logger().Fatalf("Could not check/create directory for account %s: %v", email, err)
}
var privKey *rsa.PrivateKey
if _, err := os.Stat(accKeyPath); os.IsNotExist(err) {
logger().Printf("No key found for account %s. Generating a %v bit key.", email, conf.RsaBits())
privKey, err = generateRsaKey(conf.RsaBits(), accKeyPath)
if err != nil {
logger().Fatalf("Could not generate RSA private account key for account %s: %v", email, err)
}
logger().Printf("Saved key to %s", accKeyPath)
} else {
privKey, err = loadRsaKey(accKeyPath)
if err != nil {
logger().Fatalf("Could not load RSA private key from file %s: %v", accKeyPath, err)
}
}
accountFile := path.Join(conf.AccountPath(email), "account.json")
if _, err := os.Stat(accountFile); os.IsNotExist(err) {
return &Account{Email: email, key: privKey, conf: conf}
}
fileBytes, err := ioutil.ReadFile(accountFile)
if err != nil {
logger().Fatalf("Could not load file for account %s -> %v", email, err)
}
var acc Account
err = json.Unmarshal(fileBytes, &acc)
if err != nil {
logger().Fatalf("Could not parse file for account %s -> %v", email, err)
}
acc.key = privKey
acc.conf = conf
return &acc
}
/** Implementation of the acme.User interface **/
// GetEmail returns the email address for the account
func (a *Account) GetEmail() string {
return a.Email
}
// GetPrivateKey returns the private RSA account key.
func (a *Account) GetPrivateKey() *rsa.PrivateKey {
return a.key
}
// GetRegistration returns the server registration
func (a *Account) GetRegistration() *acme.RegistrationResource {
return a.Registration
}
/** End **/
// Save the account to disk
func (a *Account) Save() error {
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jsonBytes, err := json.MarshalIndent(a, "", "\t")
if err != nil {
return err
}
return ioutil.WriteFile(path.Join(a.conf.AccountPath(a.Email), "account.json"), jsonBytes, 0700)
}