Mercurial > gemma

annotate pkg/misc/mail.go @ 5688:6281c18b109f sr-v2

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Finsh serializing v2 meshes.
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Mon, 12 Feb 2024 02:27:41 +0100
parents 1222b777f51f
children
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rev   line source
1017
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1 // This is Free Software under GNU Affero General Public License v >= 3.0
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2 // without warranty, see README.md and license for details.
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3 //
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4 // SPDX-License-Identifier: AGPL-3.0-or-later
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5 // License-Filename: LICENSES/AGPL-3.0.txt
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6 //
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7 // Copyright (C) 2018 by via donau
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8 // – Österreichische Wasserstraßen-Gesellschaft mbH
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9 // Software engineering by Intevation GmbH
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10 //
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11 // Author(s):
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12 // * Sascha L. Teichmann <sascha.teichmann@intevation.de>
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13
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14 package misc
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15
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16 import (
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17 "io"
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18
339
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19 gomail "gopkg.in/gomail.v2"
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20
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21 "gemma.intevation.de/gemma/pkg/config"
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22 )
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23
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24 // EmailReceiver is the name and address of an email receiver.
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25 type EmailReceiver struct {
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26 Name string
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27 Address string
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28 }
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29
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30 // EmailAttachment is a email attachment with
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31 // a file name and a content.
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32 type EmailAttachment struct {
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33 Name string
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34 Content []byte
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35 }
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36
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37 // SendMail sends an email to a given address with a given subject
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38 // and body.
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39 // The credentials to contact the SMPT server are taken from the
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40 // configuration.
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41 func SendMail(address, subject, body string) error {
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42 m := gomail.NewMessage()
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43 m.SetHeader("From", config.MailFrom())
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44 m.SetHeader("To", address)
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45 m.SetHeader("Subject", subject)
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46 m.SetBody("text/plain", body)
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47
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48 d := gomail.Dialer{
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49 Host: config.MailHost(),
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50 Port: int(config.MailPort()),
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51 Username: config.MailUser(),
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52 Password: config.MailPassword(),
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53 LocalName: config.MailHelo(),
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54 SSL: config.MailPort() == 465,
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55 }
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56
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57 return d.DialAndSend(m)
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58 }
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59
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60 // SendMailToAll sends emails to all receivers,
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61 func SendMailToAll(
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62 receivers []EmailReceiver,
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63 subject string,
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64 body func(EmailReceiver) (string, error),
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65 attachments []EmailAttachment,
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66 errorHandler func(EmailReceiver, error) error,
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67 ) error {
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68
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69 d := gomail.Dialer{
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70 Host: config.MailHost(),
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71 Port: int(config.MailPort()),
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72 Username: config.MailUser(),
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73 Password: config.MailPassword(),
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74 LocalName: config.MailHelo(),
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75 SSL: config.MailPort() == 465,
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76 }
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77
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78 s, err := d.Dial()
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79 if err != nil {
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80 return err
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81 }
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82 defer s.Close()
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83
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84 m := gomail.NewMessage()
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85 for _, r := range receivers {
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86 m.SetHeader("From", config.MailFrom())
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87 m.SetAddressHeader("To", r.Address, r.Name)
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88 m.SetHeader("Subject", subject)
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89 b, err := body(r)
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90 if err != nil {
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91 return err
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92 }
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93 m.SetBody("text/plain", b)
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94 for _, at := range attachments {
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95 content := at.Content
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96 m.Attach(at.Name, gomail.SetCopyFunc(func(w io.Writer) error {
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97 _, err := w.Write(content)
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98 return err
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99 }))
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100 }
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101
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102 if err := gomail.Send(s, m); err != nil {
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103 if err = errorHandler(r, err); err != nil {
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104 return err
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105 }
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106 }
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107 m.Reset()
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108 }
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109 return nil
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110 }