371 lines
13 KiB
Go
371 lines
13 KiB
Go
package bitwarden
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"crypto/sha256"
|
|
"encoding/base64"
|
|
"encoding/json"
|
|
"fmt"
|
|
"math/rand"
|
|
"net/url"
|
|
"runtime"
|
|
"strconv"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/quexten/goldwarden/agent/bitwarden/crypto"
|
|
"github.com/quexten/goldwarden/agent/bitwarden/twofactor"
|
|
"github.com/quexten/goldwarden/agent/config"
|
|
"github.com/quexten/goldwarden/agent/notify"
|
|
"github.com/quexten/goldwarden/agent/systemauth/pinentry"
|
|
"github.com/quexten/goldwarden/agent/vault"
|
|
"github.com/quexten/goldwarden/logging"
|
|
"golang.org/x/crypto/pbkdf2"
|
|
)
|
|
|
|
var authLog = logging.GetLogger("Goldwarden", "Auth")
|
|
|
|
type preLoginRequest struct {
|
|
Email string `json:"email"`
|
|
}
|
|
|
|
type preLoginResponse struct {
|
|
KDF int
|
|
KDFIterations int
|
|
KDFMemory int
|
|
KDFParallelism int
|
|
}
|
|
|
|
type LoginResponseToken struct {
|
|
AccessToken string `json:"access_token"`
|
|
ExpiresIn int `json:"expires_in"`
|
|
TokenType string `json:"token_type"`
|
|
RefreshToken string `json:"refresh_token"`
|
|
Key string `json:"key"`
|
|
Kdf int `json:"Kdf"`
|
|
KdfIterations int `json:"KdfIterations"`
|
|
KdfMemory int `json:"KdfMemory"`
|
|
KdfParallelism int `json:"KdfParallelism"`
|
|
}
|
|
|
|
const (
|
|
deviceName = "goldwarden"
|
|
loginScope = "api offline_access"
|
|
loginApiKeyScope = "api"
|
|
)
|
|
|
|
func deviceType() string {
|
|
switch runtime.GOOS {
|
|
case "linux":
|
|
return "8"
|
|
case "darwin":
|
|
return "7"
|
|
case "windows":
|
|
return "6"
|
|
default:
|
|
return "14"
|
|
}
|
|
}
|
|
|
|
func LoginWithApiKey(ctx context.Context, email string, cfg *config.Config, vault *vault.Vault) (LoginResponseToken, crypto.MasterKey, string, error) {
|
|
clientID, err := cfg.GetClientID()
|
|
if err != nil {
|
|
notify.Notify("Goldwarden", fmt.Sprintf("Could not get client ID: %v", err), "", 0, func() {})
|
|
return LoginResponseToken{}, crypto.MasterKey{}, "", fmt.Errorf("could not get client ID: %v", err)
|
|
}
|
|
clientSecret, err := cfg.GetClientSecret()
|
|
if err != nil {
|
|
notify.Notify("Goldwarden", fmt.Sprintf("Could not get client secret: %v", err), "", 0, func() {})
|
|
return LoginResponseToken{}, crypto.MasterKey{}, "", fmt.Errorf("could not get client secret: %v", err)
|
|
}
|
|
|
|
values := urlValues(
|
|
"client_id", clientID,
|
|
"client_secret", clientSecret,
|
|
"scope", loginApiKeyScope,
|
|
"grant_type", "client_credentials",
|
|
"deviceType", deviceType(),
|
|
"deviceName", deviceName,
|
|
"deviceIdentifier", cfg.ConfigFile.DeviceUUID,
|
|
)
|
|
|
|
var loginResponseToken LoginResponseToken
|
|
err = authenticatedHTTPPost(ctx, cfg.ConfigFile.IdentityUrl+"/connect/token", &loginResponseToken, values)
|
|
if err != nil {
|
|
notify.Notify("Goldwarden", fmt.Sprintf("Could not login via API key: %v", err), "", 0, func() {})
|
|
return LoginResponseToken{}, crypto.MasterKey{}, "", fmt.Errorf("could not login via API key: %v", err)
|
|
}
|
|
|
|
password, err := pinentry.GetPassword("Bitwarden Password", "Enter your Bitwarden password")
|
|
if err != nil {
|
|
notify.Notify("Goldwarden", fmt.Sprintf("Could not get password: %v", err), "", 0, func() {})
|
|
return LoginResponseToken{}, crypto.MasterKey{}, "", err
|
|
}
|
|
|
|
masterKey, err := crypto.DeriveMasterKey([]byte(strings.Clone(password)), email, crypto.KDFConfig{Type: crypto.KDFType(loginResponseToken.Kdf), Iterations: uint32(loginResponseToken.KdfIterations), Memory: uint32(loginResponseToken.KdfMemory), Parallelism: uint32(loginResponseToken.KdfParallelism)})
|
|
if err != nil {
|
|
notify.Notify("Goldwarden", fmt.Sprintf("Could not derive master key: %v", err), "", 0, func() {})
|
|
return LoginResponseToken{}, crypto.MasterKey{}, "", err
|
|
}
|
|
hashedPassword := b64enc.EncodeToString(pbkdf2.Key(masterKey.GetBytes(), []byte(password), 1, 32, sha256.New))
|
|
|
|
authLog.Info("Logged in")
|
|
return loginResponseToken, masterKey, hashedPassword, nil
|
|
}
|
|
|
|
func LoginWithMasterpassword(ctx context.Context, email string, cfg *config.Config, vault *vault.Vault) (LoginResponseToken, crypto.MasterKey, string, error) {
|
|
var preLogin preLoginResponse
|
|
if err := authenticatedHTTPPost(ctx, cfg.ConfigFile.ApiUrl+"/accounts/prelogin", &preLogin, preLoginRequest{
|
|
Email: email,
|
|
}); err != nil {
|
|
notify.Notify("Goldwarden", fmt.Sprintf("Could not pre-login: %v", err), "", 0, func() {})
|
|
return LoginResponseToken{}, crypto.MasterKey{}, "", fmt.Errorf("could not pre-login: %v", err)
|
|
}
|
|
|
|
var values url.Values
|
|
var masterKey crypto.MasterKey
|
|
var hashedPassword string
|
|
|
|
password, err := pinentry.GetPassword("Bitwarden Password", "Enter your Bitwarden password")
|
|
if err != nil {
|
|
notify.Notify("Goldwarden", fmt.Sprintf("Could not get password: %v", err), "", 0, func() {})
|
|
return LoginResponseToken{}, crypto.MasterKey{}, "", err
|
|
}
|
|
|
|
masterKey, err = crypto.DeriveMasterKey([]byte(strings.Clone(password)), email, crypto.KDFConfig{Type: crypto.KDFType(preLogin.KDF), Iterations: uint32(preLogin.KDFIterations), Memory: uint32(preLogin.KDFMemory), Parallelism: uint32(preLogin.KDFParallelism)})
|
|
if err != nil {
|
|
notify.Notify("Goldwarden", fmt.Sprintf("Could not derive master key: %v", err), "", 0, func() {})
|
|
return LoginResponseToken{}, crypto.MasterKey{}, "", err
|
|
}
|
|
|
|
hashedPassword = b64enc.EncodeToString(pbkdf2.Key(masterKey.GetBytes(), []byte(password), 1, 32, sha256.New))
|
|
|
|
values = urlValues(
|
|
"grant_type", "password",
|
|
"username", email,
|
|
"password", string(hashedPassword),
|
|
"scope", loginScope,
|
|
"client_id", "connector",
|
|
"deviceType", deviceType(),
|
|
"deviceName", deviceName,
|
|
"deviceIdentifier", cfg.ConfigFile.DeviceUUID,
|
|
)
|
|
|
|
var loginResponseToken LoginResponseToken
|
|
err = authenticatedHTTPPost(ctx, cfg.ConfigFile.IdentityUrl+"/connect/token", &loginResponseToken, values)
|
|
errsc, ok := err.(*errStatusCode)
|
|
if ok && bytes.Contains(errsc.body, []byte("TwoFactor")) {
|
|
loginResponseToken, err = Perform2FA(values, errsc, cfg, ctx)
|
|
if err != nil {
|
|
notify.Notify("Goldwarden", fmt.Sprintf("Could not login via two-factor: %v", err), "", 0, func() {})
|
|
return LoginResponseToken{}, crypto.MasterKey{}, "", err
|
|
}
|
|
} else if err != nil && strings.Contains(err.Error(), "Captcha required.") {
|
|
notify.Notify("Goldwarden", "Captcha required", "", 0, func() {})
|
|
return LoginResponseToken{}, crypto.MasterKey{}, "", fmt.Errorf("captcha required, please login via the web interface")
|
|
} else if err != nil {
|
|
notify.Notify("Goldwarden", fmt.Sprintf("Could not login via password: %s", err.Error()), "", 0, func() {})
|
|
return LoginResponseToken{}, crypto.MasterKey{}, "", fmt.Errorf("could not login via password: %v", err)
|
|
}
|
|
|
|
authLog.Info("Logged in")
|
|
return loginResponseToken, masterKey, hashedPassword, nil
|
|
}
|
|
|
|
func LoginWithDevice(ctx context.Context, email string, cfg *config.Config, vault *vault.Vault) (LoginResponseToken, crypto.MasterKey, string, error) {
|
|
timeout := 120 * time.Second
|
|
|
|
// 25 random letters & numbers
|
|
alphabet := "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
|
|
accessCode := ""
|
|
for i := 0; i < 25; i++ {
|
|
accessCode += string(alphabet[rand.Intn(len(alphabet))])
|
|
}
|
|
publicKey, err := crypto.GenerateAsymmetric(vault.Keyring.IsMemguard)
|
|
if err != nil {
|
|
return LoginResponseToken{}, crypto.MasterKey{}, "", err
|
|
}
|
|
data, err := CreateAuthRequest(ctx, accessCode, cfg.ConfigFile.DeviceUUID, email, base64.StdEncoding.EncodeToString(publicKey.PublicBytes()), cfg)
|
|
if err != nil {
|
|
return LoginResponseToken{}, crypto.MasterKey{}, "", err
|
|
}
|
|
|
|
timeoutChan := make(chan bool)
|
|
go func() {
|
|
time.Sleep(timeout)
|
|
timeoutChan <- true
|
|
}()
|
|
|
|
for {
|
|
select {
|
|
case <-timeoutChan:
|
|
return LoginResponseToken{}, crypto.MasterKey{}, "", fmt.Errorf("timed out waiting for device to be authorized")
|
|
default:
|
|
authRequestData, err := GetAuthResponse(ctx, accessCode, data.ID, cfg)
|
|
if err != nil {
|
|
log.Error("Could not get auth request: %s", err.Error())
|
|
}
|
|
if authRequestData.RequestApproved {
|
|
masterKey, err := crypto.DecryptWithAsymmetric([]byte(authRequestData.Key), publicKey)
|
|
if err != nil {
|
|
return LoginResponseToken{}, crypto.MasterKey{}, "", fmt.Errorf("could not decrypt key with asymmetric key: %s", err.Error())
|
|
}
|
|
|
|
masterPasswordHash, err := crypto.DecryptWithAsymmetric([]byte(authRequestData.MasterPasswordHash), publicKey)
|
|
if err != nil {
|
|
return LoginResponseToken{}, crypto.MasterKey{}, "", fmt.Errorf("could not decrypt master password hash with asymmetric key: %s", err.Error())
|
|
}
|
|
|
|
values := urlValues(
|
|
"grant_type", "password",
|
|
"username", email,
|
|
"password", string(accessCode),
|
|
"authRequest", authRequestData.ID,
|
|
"scope", loginScope,
|
|
"client_id", "connector",
|
|
"deviceType", deviceType(),
|
|
"deviceName", deviceName,
|
|
"deviceIdentifier", cfg.ConfigFile.DeviceUUID,
|
|
)
|
|
|
|
var loginResponseToken LoginResponseToken
|
|
err = authenticatedHTTPPost(ctx, cfg.ConfigFile.IdentityUrl+"/connect/token", &loginResponseToken, values)
|
|
errsc, ok := err.(*errStatusCode)
|
|
if ok && bytes.Contains(errsc.body, []byte("TwoFactor")) {
|
|
loginResponseToken, err = Perform2FA(values, errsc, cfg, ctx)
|
|
if err != nil {
|
|
return LoginResponseToken{}, crypto.MasterKey{}, "", err
|
|
}
|
|
} else if err != nil && strings.Contains(err.Error(), "Captcha required.") {
|
|
return LoginResponseToken{}, crypto.MasterKey{}, "", fmt.Errorf("captcha required, please login via the web interface")
|
|
|
|
} else if err != nil {
|
|
return LoginResponseToken{}, crypto.MasterKey{}, "", fmt.Errorf("could not login via password: %s", err.Error())
|
|
}
|
|
return loginResponseToken, crypto.MasterKeyFromBytes(masterKey), string(masterPasswordHash), nil
|
|
}
|
|
time.Sleep(1 * time.Second)
|
|
}
|
|
}
|
|
}
|
|
|
|
func RefreshToken(ctx context.Context, cfg *config.Config) bool {
|
|
authLog.Info("Refreshing token")
|
|
|
|
token, err := cfg.GetToken()
|
|
if err != nil {
|
|
fmt.Println("Could not get refresh token: ", err)
|
|
return false
|
|
}
|
|
if token.RefreshToken == "" {
|
|
authLog.Info("Refreshing using API Key")
|
|
clientID, err := cfg.GetClientID()
|
|
if err != nil {
|
|
authLog.Error("Could not get client ID: %s", err.Error())
|
|
return false
|
|
}
|
|
clientSecret, err := cfg.GetClientSecret()
|
|
if err != nil {
|
|
authLog.Error("Could not get client secret: %s", err.Error())
|
|
return false
|
|
}
|
|
|
|
if clientID != "" && clientSecret != "" {
|
|
values := urlValues(
|
|
"client_id", clientID,
|
|
"client_secret", clientSecret,
|
|
"scope", loginApiKeyScope,
|
|
"grant_type", "client_credentials",
|
|
"deviceType", deviceType(),
|
|
"deviceName", deviceName,
|
|
"deviceIdentifier", cfg.ConfigFile.DeviceUUID,
|
|
)
|
|
|
|
var loginResponseToken LoginResponseToken
|
|
err = authenticatedHTTPPost(ctx, cfg.ConfigFile.IdentityUrl+"/connect/token", &loginResponseToken, values)
|
|
if err != nil {
|
|
authLog.Error("Could not refresh token: %s", err.Error())
|
|
notify.Notify("Goldwarden", fmt.Sprintf("Could not refresh token: %v", err), "", 0, func() {})
|
|
return false
|
|
}
|
|
|
|
err = cfg.SetToken(config.LoginToken{
|
|
AccessToken: loginResponseToken.AccessToken,
|
|
RefreshToken: "",
|
|
Key: loginResponseToken.Key,
|
|
TokenType: loginResponseToken.TokenType,
|
|
ExpiresIn: loginResponseToken.ExpiresIn,
|
|
})
|
|
if err != nil {
|
|
authLog.Error("Could not set token: %s", err.Error())
|
|
return false
|
|
}
|
|
} else {
|
|
authLog.Info("No api credentials set")
|
|
}
|
|
} else {
|
|
authLog.Info("Refreshing using refresh token")
|
|
|
|
var loginResponseToken LoginResponseToken
|
|
err = authenticatedHTTPPost(ctx, cfg.ConfigFile.IdentityUrl+"/connect/token", &loginResponseToken, urlValues(
|
|
"grant_type", "refresh_token",
|
|
"refresh_token", token.RefreshToken,
|
|
"client_id", "connector",
|
|
))
|
|
if err != nil {
|
|
authLog.Error("Could not refresh token: %s", err.Error())
|
|
notify.Notify("Goldwarden", fmt.Sprintf("Could not refresh token: %v", err), "", 0, func() {})
|
|
return false
|
|
}
|
|
err = cfg.SetToken(config.LoginToken{
|
|
AccessToken: loginResponseToken.AccessToken,
|
|
RefreshToken: loginResponseToken.RefreshToken,
|
|
Key: loginResponseToken.Key,
|
|
TokenType: loginResponseToken.TokenType,
|
|
ExpiresIn: loginResponseToken.ExpiresIn,
|
|
})
|
|
if err != nil {
|
|
authLog.Error("Could not set token: %s", err.Error())
|
|
return false
|
|
}
|
|
}
|
|
|
|
authLog.Info("Token refreshed")
|
|
|
|
return true
|
|
}
|
|
|
|
func Perform2FA(values url.Values, errsc *errStatusCode, cfg *config.Config, ctx context.Context) (LoginResponseToken, error) {
|
|
var twoFactor twofactor.TwoFactorResponse
|
|
if err := json.Unmarshal(errsc.body, &twoFactor); err != nil {
|
|
return LoginResponseToken{}, err
|
|
}
|
|
provider, token, err := twofactor.PerformSecondFactor(&twoFactor, cfg)
|
|
if err != nil {
|
|
return LoginResponseToken{}, fmt.Errorf("could not obtain two-factor auth token: %v", err)
|
|
}
|
|
values.Set("twoFactorProvider", strconv.Itoa(int(provider)))
|
|
values.Set("twoFactorToken", string(token))
|
|
values.Set("twoFactorRemember", "1")
|
|
loginResponseToken := LoginResponseToken{}
|
|
if err := authenticatedHTTPPost(ctx, cfg.ConfigFile.IdentityUrl+"/connect/token", &loginResponseToken, values); err != nil {
|
|
return LoginResponseToken{}, fmt.Errorf("could not login via two-factor: %v", err)
|
|
}
|
|
authLog.Info("2FA login successful")
|
|
return loginResponseToken, nil
|
|
}
|
|
|
|
func urlValues(pairs ...string) url.Values {
|
|
if len(pairs)%2 != 0 {
|
|
panic("pairs must be of even length")
|
|
}
|
|
vals := make(url.Values)
|
|
for i := 0; i < len(pairs); i += 2 {
|
|
vals.Set(pairs[i], pairs[i+1])
|
|
}
|
|
return vals
|
|
}
|
|
|
|
var b64enc = base64.StdEncoding.Strict()
|