proton-bridge/pkg/message/message.go

53 lines
1.6 KiB
Go

// 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 message
import (
"crypto/sha512"
"fmt"
"strings"
"github.com/ProtonMail/proton-bridge/pkg/pmapi"
"github.com/sirupsen/logrus"
)
var log = logrus.WithField("pkg", "pkg/message") //nolint[gochecknoglobals]
func GetBoundary(m *pmapi.Message) string {
// The boundary needs to be deterministic because messages are not supposed to
// change.
return fmt.Sprintf("%x", sha512.Sum512_256([]byte(m.ID)))
}
func GetRelatedBoundary(m *pmapi.Message) string {
// The boundary needs to be deterministic because messages are not supposed to
// change.
return fmt.Sprintf("%x", sha512.Sum512_256([]byte(m.ID+m.ID)))
}
func SeparateInlineAttachments(m *pmapi.Message) (atts, inlines []*pmapi.Attachment) {
for _, att := range m.Attachments {
if strings.Contains(att.Header.Get("Content-Disposition"), "inline") {
inlines = append(inlines, att)
} else {
atts = append(atts, att)
}
}
return
}