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package common
import (
"context"
"encoding/base64"
"encoding/json"
"log"
"os"
"github.com/ProtonMail/gopenpgp/v2/crypto"
"github.com/henrybear327/go-proton-api"
)
type ProtonDriveCredential struct {
UID string
AccessToken string
RefreshToken string
SaltedKeyPass string
}
func cacheCredentialToFile(config *Config) error {
if config.CredentialCacheFile != "" {
str, err := json.Marshal(config.ReusableCredential)
if err != nil {
return err
}
file, err := os.Create(config.CredentialCacheFile)
if err != nil {
return err
}
defer file.Close()
_, err = file.WriteString(string(str))
if err != nil {
return err
}
}
return nil
}
/*
Log in methods
- username and password to log in
- UID and refresh token
Keyring decryption
The password will be salted, and then used to decrypt the keyring. The salted password needs to be and can be cached, so the keyring can be re-decrypted when needed
*/
func Login(ctx context.Context, config *Config, authHandler proton.AuthHandler, deAuthHandler proton.Handler) (*proton.Manager, *proton.Client, *ProtonDriveCredential, *crypto.KeyRing, map[string]*crypto.KeyRing, map[string]proton.Address, error) {
var c *proton.Client
var auth proton.Auth
var userKR *crypto.KeyRing
var addrKRs map[string]*crypto.KeyRing
var addrs map[string]proton.Address
// get manager
m := getProtonManager(config.AppVersion, config.UserAgent)
if config.UseReusableLogin {
c = m.NewClient(config.ReusableCredential.UID, config.ReusableCredential.AccessToken, config.ReusableCredential.RefreshToken)
c.AddAuthHandler(authHandler)
c.AddDeauthHandler(deAuthHandler)
err := cacheCredentialToFile(config)
if err != nil {
return nil, nil, nil, nil, nil, nil, err
}
SaltedKeyPassByteArr, err := base64.StdEncoding.DecodeString(config.ReusableCredential.SaltedKeyPass)
if err != nil {
return nil, nil, nil, nil, nil, nil, err
}
userKR, addrKRs, addrs, _, err = getAccountKRs(ctx, c, nil, SaltedKeyPassByteArr)
if err != nil {
return nil, nil, nil, nil, nil, nil, err
}
return m, c, nil, userKR, addrKRs, addrs, nil
} else {
username := config.FirstLoginCredential.Username
password := config.FirstLoginCredential.Password
if username == "" || password == "" {
return nil, nil, nil, nil, nil, nil, ErrUsernameAndPasswordRequired
}
// perform login
var err error
c, auth, err = m.NewClientWithLogin(ctx, username, []byte(password))
if err != nil {
return nil, nil, nil, nil, nil, nil, err
}
c.AddAuthHandler(authHandler)
c.AddDeauthHandler(deAuthHandler)
if auth.TwoFA.Enabled&proton.HasTOTP != 0 {
if config.FirstLoginCredential.TwoFA != "" {
err := c.Auth2FA(ctx, proton.Auth2FAReq{
TwoFactorCode: config.FirstLoginCredential.TwoFA,
})
if err != nil {
return nil, nil, nil, nil, nil, nil, err
}
} else {
return nil, nil, nil, nil, nil, nil, Err2FACodeRequired
}
}
var keyPass []byte
if auth.PasswordMode == proton.TwoPasswordMode {
if config.FirstLoginCredential.MailboxPassword != "" {
keyPass = []byte(config.FirstLoginCredential.MailboxPassword)
} else {
return nil, nil, nil, nil, nil, nil, ErrMailboxPasswordRequired
}
} else {
keyPass = []byte(config.FirstLoginCredential.Password)
}
// decrypt keyring
var saltedKeyPassByteArr []byte
userKR, addrKRs, addrs, saltedKeyPassByteArr, err = getAccountKRs(ctx, c, keyPass, nil)
if err != nil {
return nil, nil, nil, nil, nil, nil, err
}
saltedKeyPass := base64.StdEncoding.EncodeToString(saltedKeyPassByteArr)
config.ReusableCredential.UID = auth.UID
config.ReusableCredential.AccessToken = auth.AccessToken
config.ReusableCredential.RefreshToken = auth.RefreshToken
config.ReusableCredential.SaltedKeyPass = saltedKeyPass
err = cacheCredentialToFile(config)
if err != nil {
return nil, nil, nil, nil, nil, nil, err
}
return m, c, &ProtonDriveCredential{
UID: auth.UID,
AccessToken: auth.AccessToken,
RefreshToken: auth.RefreshToken,
SaltedKeyPass: saltedKeyPass,
}, userKR, addrKRs, addrs, nil
}
}
func Logout(ctx context.Context, config *Config, m *proton.Manager, c *proton.Client, userKR *crypto.KeyRing, addrKRs map[string]*crypto.KeyRing) error {
defer m.Close()
defer c.Close()
if config.CredentialCacheFile == "" {
log.Println("Logging out user")
// log out
err := c.AuthDelete(ctx)
if err != nil {
return err
}
// clear keyrings
userKR.ClearPrivateParams()
for i := range addrKRs {
addrKRs[i].ClearPrivateParams()
}
}
return nil
}
|
