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112 lines
3.0 KiB
112 lines
3.0 KiB
// Copyright (c) 2022 Proton AG |
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// |
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// This file is part of Proton Mail Bridge. |
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// |
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// Proton Mail Bridge is free software: you can redistribute it and/or modify |
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// it under the terms of the GNU General Public License as published by |
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// the Free Software Foundation, either version 3 of the License, or |
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// (at your option) any later version. |
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// |
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// Proton Mail Bridge is distributed in the hope that it will be useful, |
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// but WITHOUT ANY WARRANTY; without even the implied warranty of |
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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// GNU General Public License for more details. |
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// |
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// You should have received a copy of the GNU General Public License |
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// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>. |
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package store |
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import ( |
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"github.com/pkg/errors" |
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bolt "go.etcd.io/bbolt" |
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) |
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type addressMode string |
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const ( |
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splitMode addressMode = "split" |
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combinedMode addressMode = "combined" |
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modeKey = "mode" |
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) |
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// getAddressMode returns the current address mode (split or combined) of the store. |
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// It first looks in the local cache but if that is not yet set, it loads it from the database. |
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func (store *Store) getAddressMode() (mode addressMode, err error) { |
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if store.addressMode != "" { |
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mode = store.addressMode |
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return |
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} |
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tx := func(tx *bolt.Tx) (err error) { |
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b := tx.Bucket(addressModeBucket) |
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dbMode := b.Get([]byte(modeKey)) |
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if dbMode == nil { |
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return errors.New("address mode not set") |
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} |
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mode = addressMode(dbMode) |
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return |
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} |
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err = store.db.View(tx) |
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return |
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} |
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// IsCombinedMode returns whether the store is set to combined mode. |
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func (store *Store) IsCombinedMode() bool { |
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return store.addressMode == combinedMode |
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} |
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// UseCombinedMode sets whether the store should be set to combined mode. |
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func (store *Store) UseCombinedMode(useCombined bool) (err error) { |
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if useCombined { |
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err = store.switchAddressMode(combinedMode) |
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} else { |
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err = store.switchAddressMode(splitMode) |
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} |
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return |
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} |
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// switchAddressMode sets the address mode to the given value and rebuilds the mailboxes. |
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func (store *Store) switchAddressMode(mode addressMode) (err error) { |
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if store.addressMode == mode { |
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log.Debug("The store is using the correct address mode") |
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return |
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} |
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if err = store.setAddressMode(mode); err != nil { |
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log.WithError(err).Error("Could not set store address mode") |
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return |
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} |
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if err = store.RebuildMailboxes(); err != nil { |
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log.WithError(err).Error("Could not rebuild mailboxes after switching address mode") |
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return |
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} |
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return |
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} |
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// setAddressMode sets the current address mode (split or combined) of the store. |
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// It writes to database and updates the local value in the store object. |
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func (store *Store) setAddressMode(mode addressMode) (err error) { |
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store.log.WithField("mode", string(mode)).Info("Setting store address mode") |
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tx := func(tx *bolt.Tx) (err error) { |
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b := tx.Bucket(addressModeBucket) |
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return b.Put([]byte(modeKey), []byte(mode)) |
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} |
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if err = store.db.Update(tx); err != nil { |
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return |
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} |
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store.addressMode = mode |
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return |
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}
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