Import/Export GUI

internal/transfer/provider_imap_errors.go

@@ -0,0 +1,66 @@
+// Copyright (c) 2020 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 transfer
+
+// imapError is base for all IMAP errors.
+type imapError struct {
+	Message string
+	Err     error
+}
+
+func (e imapError) Error() string {
+	return e.Message + ": " + e.Err.Error()
+}
+
+func (e imapError) Unwrap() error {
+	return e.Err
+}
+
+func (e imapError) Cause() error {
+	return e.Err
+}
+
+// ErrIMAPConnection is error representing connection issues.
+type ErrIMAPConnection struct {
+	imapError
+}
+
+func (e ErrIMAPConnection) Is(target error) bool {
+	_, ok := target.(*ErrIMAPConnection)
+	return ok
+}
+
+// ErrIMAPAuth is error representing authentication issues.
+type ErrIMAPAuth struct {
+	imapError
+}
+
+func (e ErrIMAPAuth) Is(target error) bool {
+	_, ok := target.(*ErrIMAPAuth)
+	return ok
+}
+
+// ErrIMAPAuthMethod is error representing wrong auth method.
+type ErrIMAPAuthMethod struct {
+	imapError
+}
+
+func (e ErrIMAPAuthMethod) Is(target error) bool {
+	_, ok := target.(*ErrIMAPAuthMethod)
+	return ok
+}