forked from Silverfish/proton-bridge
9a96588afb
Convert ServerManger into a standalone service so that it can become a self contained module.
70 lines
2.4 KiB
Go
70 lines
2.4 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 imapsmtpserver
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import (
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"crypto/tls"
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"github.com/ProtonMail/proton-bridge/v3/internal/constants"
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"github.com/ProtonMail/proton-bridge/v3/internal/identifier"
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"github.com/ProtonMail/proton-bridge/v3/internal/logging"
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smtpservice "github.com/ProtonMail/proton-bridge/v3/internal/services/smtp"
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"github.com/emersion/go-sasl"
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"github.com/emersion/go-smtp"
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"github.com/sirupsen/logrus"
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)
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type SMTPSettingsProvider interface {
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TLSConfig() *tls.Config
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Log() bool
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Port() int
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SetPort(int) error
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UseSSL() bool
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Identifier() identifier.UserAgentUpdater
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}
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func newSMTPServer(accounts *smtpservice.Accounts, settings SMTPSettingsProvider) *smtp.Server {
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logrus.WithField("logSMTP", settings.Log()).Info("Creating SMTP server")
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smtpServer := smtp.NewServer(smtpservice.NewBackend(accounts, settings.Identifier()))
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smtpServer.TLSConfig = settings.TLSConfig()
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smtpServer.Domain = constants.Host
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smtpServer.AllowInsecureAuth = true
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smtpServer.MaxLineLength = 1 << 16
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smtpServer.ErrorLog = logging.NewSMTPLogger()
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// go-smtp suppors SASL PLAIN but not LOGIN. We need to add LOGIN support ourselves.
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smtpServer.EnableAuth(sasl.Login, func(conn *smtp.Conn) sasl.Server {
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return sasl.NewLoginServer(func(username, password string) error {
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return conn.Session().AuthPlain(username, password)
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})
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})
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if settings.Log() {
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log := logrus.WithField("protocol", "SMTP")
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log.Warning("================================================")
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log.Warning("THIS LOG WILL CONTAIN **DECRYPTED** MESSAGE DATA")
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log.Warning("================================================")
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smtpServer.Debug = logging.NewSMTPDebugLogger()
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}
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return smtpServer
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}
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