web/satellite: increment login failed_login_count in sql

This change increments users' failed_login_count in the database layer to avoid potential data race.
It also updates the login_lockout_expiration as well in one operation.

see: https://github.com/storj/storj/issues/4986

Change-Id: I74624f1bee31667b269cb205d74d16e79daabcb6

satellite/console/service.go

@@ -1161,13 +1161,10 @@ func (s *Service) Token(ctx context.Context, request AuthUser) (response *TokenI
 func (s *Service) UpdateUsersFailedLoginState(ctx context.Context, user *User) (err error) {
 	defer mon.Task()(&ctx)(&err)
 
-	updateRequest := UpdateUserRequest{}
+	var failedLoginPenalty *float64
 	if user.FailedLoginCount >= s.config.LoginAttemptsWithoutPenalty-1 {
 		lockoutDuration := time.Duration(math.Pow(s.config.FailedLoginPenalty, float64(user.FailedLoginCount-1))) * time.Minute
-		lockoutExpTime := time.Now().Add(lockoutDuration)
+		failedLoginPenalty = &s.config.FailedLoginPenalty
-		lockoutExpTimePtr := &lockoutExpTime
-
-		updateRequest.LoginLockoutExpiration = &lockoutExpTimePtr
 
 		address := s.satelliteAddress
 		if !strings.HasSuffix(address, "/") {
@@ -1184,10 +1181,8 @@ func (s *Service) UpdateUsersFailedLoginState(ctx context.Context, user *User) (
 			},
 		)
 	}
-	user.FailedLoginCount++
 
-	updateRequest.FailedLoginCount = &user.FailedLoginCount
+	return s.store.Users().UpdateFailedLoginCountAndExpiration(ctx, failedLoginPenalty, user.ID)
-	return s.store.Users().Update(ctx, user.ID, updateRequest)
 }
 
 // GetUser returns User by id.

satellite/console/users.go

@@ -25,6 +25,8 @@ type Users interface {
 	GetUnverifiedNeedingReminder(ctx context.Context, firstReminder, secondReminder, cutoff time.Time) ([]*User, error)
 	// UpdateVerificationReminders increments verification_reminders.
 	UpdateVerificationReminders(ctx context.Context, id uuid.UUID) error
+	// UpdateFailedLoginCountAndExpiration increments failed_login_count and sets login_lockout_expiration appropriately.
+	UpdateFailedLoginCountAndExpiration(ctx context.Context, failedLoginPenalty *float64, id uuid.UUID) error
 	// GetByEmailWithUnverified is a method for querying users by email from the database.
 	GetByEmailWithUnverified(ctx context.Context, email string) (*User, []User, error)
 	// GetByEmail is a method for querying user by verified email from the database.

satellite/satellitedb/users.go

@@ -25,6 +25,26 @@ type users struct {
 	db *satelliteDB
 }
 
+// UpdateFailedLoginCountAndExpiration increments failed_login_count and sets login_lockout_expiration appropriately.
+func (users *users) UpdateFailedLoginCountAndExpiration(ctx context.Context, failedLoginPenalty *float64, id uuid.UUID) (err error) {
+	if failedLoginPenalty != nil {
+		// failed_login_count exceeded config.FailedLoginPenalty
+		_, err = users.db.ExecContext(ctx, users.db.Rebind(`
+		UPDATE users
+		SET failed_login_count = COALESCE(failed_login_count, 0) + 1,
+		login_lockout_expiration = CURRENT_TIMESTAMP + POWER(?, failed_login_count-1) * INTERVAL '1 minute'
+		WHERE id = ?
+	`), failedLoginPenalty, id.Bytes())
+	} else {
+		_, err = users.db.ExecContext(ctx, users.db.Rebind(`
+		UPDATE users
+		SET failed_login_count = COALESCE(failed_login_count, 0) + 1
+		WHERE id = ?
+	`), id.Bytes())
+	}
+	return
+}
+
 // Get is a method for querying user from the database by id.
 func (users *users) Get(ctx context.Context, id uuid.UUID) (_ *console.User, err error) {
 	defer mon.Task()(&ctx)(&err)