Pierre-Olivier Mercier
c0a3ea2d4c
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125 lines
3.8 KiB
Go
125 lines
3.8 KiB
Go
// Copyright or © or Copr. happyDNS (2021)
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//
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// contact@happydomain.org
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//
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// This software is a computer program whose purpose is to provide a modern
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// interface to interact with DNS systems.
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//
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// This software is governed by the CeCILL license under French law and abiding
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// by the rules of distribution of free software. You can use, modify and/or
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// redistribute the software under the terms of the CeCILL license as
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// circulated by CEA, CNRS and INRIA at the following URL
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// "http://www.cecill.info".
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//
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// As a counterpart to the access to the source code and rights to copy, modify
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// and redistribute granted by the license, users are provided only with a
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// limited warranty and the software's author, the holder of the economic
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// rights, and the successive licensors have only limited liability.
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//
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// In this respect, the user's attention is drawn to the risks associated with
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// loading, using, modifying and/or developing or reproducing the software by
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// the user in light of its specific status of free software, that may mean
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// that it is complicated to manipulate, and that also therefore means that it
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// is reserved for developers and experienced professionals having in-depth
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// computer knowledge. Users are therefore encouraged to load and test the
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// software's suitability as regards their requirements in conditions enabling
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// the security of their systems and/or data to be ensured and, more generally,
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// to use and operate it in the same conditions as regards security.
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//
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// The fact that you are presently reading this means that you have had
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// knowledge of the CeCILL license and that you accept its terms.
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package utils
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import (
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"flag"
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"strconv"
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gomail "github.com/go-mail/mail"
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)
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var smtpSendmail *SMTPSendmail = nil
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// SMTPSendmail uses a SMTP server to send message
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type SMTPSendmail struct {
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Hostname string
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Port int
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Username string
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Password string
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}
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// Send sends an e-mail to the given recipients using configured SMTP host.
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func (t *SMTPSendmail) PrepareAndSend(m ...*gomail.Message) (err error) {
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d := gomail.NewDialer(t.Hostname, t.Port, t.Username, t.Password)
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err = d.DialAndSend(m...)
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return
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}
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func changeSendMethodToSMTP() {
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if _, ok := SendMethod.(*SMTPSendmail); !ok {
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if smtpSendmail == nil {
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smtpSendmail = &SMTPSendmail{
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Port: 25,
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}
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}
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SendMethod = smtpSendmail
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}
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}
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type smtpSendmailHostname struct{}
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func (s *smtpSendmailHostname) Set(value string) (err error) {
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changeSendMethodToSMTP()
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SendMethod.(*SMTPSendmail).Hostname = value
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return
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}
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func (s *smtpSendmailHostname) String() string {
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return "smtp.happydomain.org"
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}
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type smtpSendmailPort struct{}
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func (s *smtpSendmailPort) Set(value string) (err error) {
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changeSendMethodToSMTP()
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SendMethod.(*SMTPSendmail).Port, err = strconv.Atoi(value)
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return
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}
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func (s *smtpSendmailPort) String() string {
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return "465"
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}
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type smtpSendmailUsername struct{}
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func (s *smtpSendmailUsername) Set(value string) (err error) {
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changeSendMethodToSMTP()
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SendMethod.(*SMTPSendmail).Username = value
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return
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}
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func (s *smtpSendmailUsername) String() string {
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return ""
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}
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type smtpSendmailPassword struct{}
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func (s *smtpSendmailPassword) Set(value string) (err error) {
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changeSendMethodToSMTP()
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SendMethod.(*SMTPSendmail).Password = value
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return
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}
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func (s *smtpSendmailPassword) String() string {
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return ""
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}
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func init() {
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flag.Var(&smtpSendmailHostname{}, "mail-smtp-host", "Use the given SMTP server as default way to send emails")
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flag.Var(&smtpSendmailPort{}, "mail-smtp-port", "Define the port to use to send e-mail through SMTP method")
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flag.Var(&smtpSendmailUsername{}, "mail-smtp-username", "If the SMTP server requires authentication, fill with the username to authenticate with")
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flag.Var(&smtpSendmailPassword{}, "mail-smtp-password", "Password associated with the given username for SMTP authentication")
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}
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