GODT-35: Finish all details and make tests pass

pkg/pmapi/errors.go

@@ -1,9 +1,37 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail Bridge is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// ProtonMail Bridge is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
 package pmapi
 
 import "errors"
 
 var (
-	ErrNoConnection = errors.New("no internet connection")
-	ErrAPIFailure   = errors.New("API returned an error")
-	ErrUnauthorized = errors.New("API client is unauthorized")
+	ErrNoConnection       = errors.New("no internet connection")
+	ErrUnauthorized       = errors.New("API client is unauthorized")
+	ErrUpgradeApplication = errors.New("application upgrade required")
+
+	ErrBad2FACode         = errors.New("incorrect 2FA code")
+	ErrBad2FACodeTryAgain = errors.New("incorrect 2FA code: please try again")
 )
+
+type ErrUnprocessableEntity struct {
+	originalError error
+}
+
+func (err ErrUnprocessableEntity) Error() string {
+	return err.originalError.Error()
+}