89 lines
2.4 KiB
Go
89 lines
2.4 KiB
Go
// Copyright (c) 2021 Proton Technologies AG
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//
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// This file is part of ProtonMail Bridge.
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//
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// ProtonMail 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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// ProtonMail 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 ProtonMail Bridge. If not, see <https://www.gnu.org/licenses/>.
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package transfer
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import (
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"io/ioutil"
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"os"
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"path/filepath"
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"github.com/hashicorp/go-multierror"
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)
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// DefaultMailboxes returns the default mailboxes for default rules if no other is found.
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func (p *EMLProvider) DefaultMailboxes(sourceMailbox Mailbox) []Mailbox {
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return []Mailbox{{
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Name: sourceMailbox.Name,
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}}
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}
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// CreateMailbox does nothing. Folders are created dynamically during the import.
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func (p *EMLProvider) CreateMailbox(mailbox Mailbox) (Mailbox, error) {
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return mailbox, nil
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}
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// TransferFrom imports messages from channel.
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func (p *EMLProvider) TransferFrom(rules transferRules, progress *Progress, ch <-chan Message) {
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log.Info("Started transfer from channel to EML")
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defer log.Info("Finished transfer from channel to EML")
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err := p.createFolders(rules)
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if err != nil {
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progress.fatal(err)
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return
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}
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for msg := range ch {
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for progress.shouldStop() {
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break
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}
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err := p.writeFile(msg)
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progress.messageImported(msg.ID, "", err)
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}
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}
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func (p *EMLProvider) createFolders(rules transferRules) error {
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for rule := range rules.iterateActiveRules() {
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for _, mailbox := range rule.TargetMailboxes {
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path := filepath.Join(p.root, sanitizeFileName(mailbox.Name))
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if err := os.MkdirAll(path, os.ModePerm); err != nil {
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return err
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}
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}
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}
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return nil
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}
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func (p *EMLProvider) writeFile(msg Message) error {
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fileName := sanitizeFileName(filepath.Base(msg.ID))
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if filepath.Ext(fileName) != ".eml" {
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fileName += ".eml"
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}
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var err error
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for _, mailbox := range msg.Targets {
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path := filepath.Join(p.root, mailbox.Name, fileName)
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if localErr := ioutil.WriteFile(path, msg.Body, 0600); localErr != nil {
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err = multierror.Append(err, localErr)
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}
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}
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return err
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}
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