forked from Silverfish/proton-bridge
68 lines
1.9 KiB
Go
68 lines
1.9 KiB
Go
// Copyright (c) 2022 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 message
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import (
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"net/mail"
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"net/textproto"
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"strings"
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"github.com/ProtonMail/proton-bridge/pkg/pmapi"
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"github.com/emersion/go-imap"
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)
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// GetEnvelope will prepare envelope from pmapi message and cached header.
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func GetEnvelope(msg *pmapi.Message, header textproto.MIMEHeader) *imap.Envelope {
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hdr := toMessageHeader(mail.Header(header))
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setMessageIDIfNeeded(msg, &hdr)
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return &imap.Envelope{
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Date: SanitizeMessageDate(msg.Time),
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Subject: msg.Subject,
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From: getAddresses([]*mail.Address{msg.Sender}),
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Sender: getAddresses([]*mail.Address{msg.Sender}),
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ReplyTo: getAddresses(msg.ReplyTos),
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To: getAddresses(msg.ToList),
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Cc: getAddresses(msg.CCList),
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Bcc: getAddresses(msg.BCCList),
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InReplyTo: hdr.Get("In-Reply-To"),
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MessageId: hdr.Get("Message-Id"),
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}
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}
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func getAddresses(addrs []*mail.Address) (imapAddrs []*imap.Address) {
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for _, a := range addrs {
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if a == nil {
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continue
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}
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parts := strings.SplitN(a.Address, "@", 2)
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if len(parts) != 2 {
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continue
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}
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imapAddrs = append(imapAddrs, &imap.Address{
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PersonalName: a.Name,
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MailboxName: parts[0],
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HostName: parts[1],
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})
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}
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return
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}
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