mirror of
https://github.com/ProtonMail/proton-bridge.git
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a187747c7c
Handles all IMAP related tasks. Unlike the previous iteration, this new service automatically adds and removes users from Gluon by interfacing with server manager.
127 lines
3.1 KiB
Go
127 lines
3.1 KiB
Go
// Copyright (c) 2023 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 imapservice
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import (
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"context"
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"fmt"
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"github.com/ProtonMail/gluon/async"
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"github.com/ProtonMail/gluon/imap"
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)
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type syncUpdate struct {
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addrID string
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update imap.Update
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}
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type syncUpdater struct {
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ch chan syncUpdate
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}
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type syncUpdatePublisher struct {
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addrID string
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updater *syncUpdater
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}
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func (s *syncUpdatePublisher) publishUpdate(ctx context.Context, update imap.Update) {
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select {
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case <-ctx.Done():
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update.Done(fmt.Errorf("not applied: %w", ctx.Err()))
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return
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case s.updater.ch <- syncUpdate{addrID: s.addrID, update: update}:
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}
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}
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func newSyncUpdater() *syncUpdater {
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return &syncUpdater{ch: make(chan syncUpdate)}
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}
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func (s *syncUpdater) createPublisher(addrID string) *syncUpdatePublisher {
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return &syncUpdatePublisher{updater: s, addrID: addrID}
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}
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func (s *syncUpdater) Close() {
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close(s.ch)
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}
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type syncHandler struct {
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group *async.Group
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updater *syncUpdater
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syncFinishedCh chan error
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}
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func newSyncHandler(ctx context.Context, handler async.PanicHandler) *syncHandler {
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return &syncHandler{
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group: async.NewGroup(ctx, handler),
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updater: newSyncUpdater(),
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syncFinishedCh: make(chan error, 2),
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}
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}
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func (s *syncHandler) Close() {
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s.group.CancelAndWait()
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close(s.syncFinishedCh)
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}
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func (s *syncHandler) CancelAndWait() {
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s.group.CancelAndWait()
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}
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func (s *syncHandler) Cancel() {
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s.group.Cancel()
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}
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func (s *syncHandler) OnSyncFinishedCH() <-chan error {
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return s.syncFinishedCh
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}
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func (s *syncHandler) launch(service *Service) {
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service.eventProvider.Pause()
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labels := service.labels.GetLabelMap()
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updaters := make(map[string]updatePublisher, len(service.connectors))
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for _, c := range service.connectors {
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updaters[c.addrID] = s.updater.createPublisher(c.addrID)
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}
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state := &syncJob{
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client: service.client,
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userID: service.identityState.UserID(),
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labels: labels,
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updaters: updaters,
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addressMode: service.addressMode,
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syncState: service.syncStateProvider,
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eventPublisher: service.eventPublisher,
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log: service.log,
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// We make a copy of the identity state to avoid holding on to locks for a very long time.
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identityState: service.identityState.Clone(),
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panicHandler: service.panicHandler,
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reporter: service.reporter,
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maxSyncMemory: service.maxSyncMemory,
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}
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s.group.Once(func(ctx context.Context) {
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err := state.run(ctx)
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s.syncFinishedCh <- err
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})
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}
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