1// Copyright 2019 The Gitea Authors. All rights reserved.
2// Use of this source code is governed by a MIT-style
3// license that can be found in the LICENSE file.
4
5package setting
6
7import (
8	"net/mail"
9	"time"
10
11	"code.gitea.io/gitea/modules/log"
12
13	shellquote "github.com/kballard/go-shellquote"
14)
15
16// Mailer represents mail service.
17type Mailer struct {
18	// Mailer
19	Name                 string
20	From                 string
21	EnvelopeFrom         string
22	OverrideEnvelopeFrom bool `ini:"-"`
23	FromName             string
24	FromEmail            string
25	SendAsPlainText      bool
26	MailerType           string
27	SubjectPrefix        string
28
29	// SMTP sender
30	Host              string
31	User, Passwd      string
32	DisableHelo       bool
33	HeloHostname      string
34	SkipVerify        bool
35	UseCertificate    bool
36	CertFile, KeyFile string
37	IsTLSEnabled      bool
38
39	// Sendmail sender
40	SendmailPath        string
41	SendmailArgs        []string
42	SendmailTimeout     time.Duration
43	SendmailConvertCRLF bool
44}
45
46var (
47	// MailService the global mailer
48	MailService *Mailer
49)
50
51func newMailService() {
52	sec := Cfg.Section("mailer")
53	// Check mailer setting.
54	if !sec.Key("ENABLED").MustBool() {
55		return
56	}
57
58	MailService = &Mailer{
59		Name:            sec.Key("NAME").MustString(AppName),
60		SendAsPlainText: sec.Key("SEND_AS_PLAIN_TEXT").MustBool(false),
61		MailerType:      sec.Key("MAILER_TYPE").In("", []string{"smtp", "sendmail", "dummy"}),
62
63		Host:           sec.Key("HOST").String(),
64		User:           sec.Key("USER").String(),
65		Passwd:         sec.Key("PASSWD").String(),
66		DisableHelo:    sec.Key("DISABLE_HELO").MustBool(),
67		HeloHostname:   sec.Key("HELO_HOSTNAME").String(),
68		SkipVerify:     sec.Key("SKIP_VERIFY").MustBool(),
69		UseCertificate: sec.Key("USE_CERTIFICATE").MustBool(),
70		CertFile:       sec.Key("CERT_FILE").String(),
71		KeyFile:        sec.Key("KEY_FILE").String(),
72		IsTLSEnabled:   sec.Key("IS_TLS_ENABLED").MustBool(),
73		SubjectPrefix:  sec.Key("SUBJECT_PREFIX").MustString(""),
74
75		SendmailPath:        sec.Key("SENDMAIL_PATH").MustString("sendmail"),
76		SendmailTimeout:     sec.Key("SENDMAIL_TIMEOUT").MustDuration(5 * time.Minute),
77		SendmailConvertCRLF: sec.Key("SENDMAIL_CONVERT_CRLF").MustBool(true),
78	}
79	MailService.From = sec.Key("FROM").MustString(MailService.User)
80	MailService.EnvelopeFrom = sec.Key("ENVELOPE_FROM").MustString("")
81
82	if sec.HasKey("ENABLE_HTML_ALTERNATIVE") {
83		log.Warn("ENABLE_HTML_ALTERNATIVE is deprecated, use SEND_AS_PLAIN_TEXT")
84		MailService.SendAsPlainText = !sec.Key("ENABLE_HTML_ALTERNATIVE").MustBool(false)
85	}
86
87	if sec.HasKey("USE_SENDMAIL") {
88		log.Warn("USE_SENDMAIL is deprecated, use MAILER_TYPE=sendmail")
89		if MailService.MailerType == "" && sec.Key("USE_SENDMAIL").MustBool(false) {
90			MailService.MailerType = "sendmail"
91		}
92	}
93
94	parsed, err := mail.ParseAddress(MailService.From)
95	if err != nil {
96		log.Fatal("Invalid mailer.FROM (%s): %v", MailService.From, err)
97	}
98	MailService.FromName = parsed.Name
99	MailService.FromEmail = parsed.Address
100
101	switch MailService.EnvelopeFrom {
102	case "":
103		MailService.OverrideEnvelopeFrom = false
104	case "<>":
105		MailService.EnvelopeFrom = ""
106		MailService.OverrideEnvelopeFrom = true
107	default:
108		parsed, err = mail.ParseAddress(MailService.EnvelopeFrom)
109		if err != nil {
110			log.Fatal("Invalid mailer.ENVELOPE_FROM (%s): %v", MailService.EnvelopeFrom, err)
111		}
112		MailService.OverrideEnvelopeFrom = true
113		MailService.EnvelopeFrom = parsed.Address
114	}
115
116	if MailService.MailerType == "" {
117		MailService.MailerType = "smtp"
118	}
119
120	if MailService.MailerType == "sendmail" {
121		MailService.SendmailArgs, err = shellquote.Split(sec.Key("SENDMAIL_ARGS").String())
122		if err != nil {
123			log.Error("Failed to parse Sendmail args: %s with error %v", CustomConf, err)
124		}
125	}
126
127	log.Info("Mail Service Enabled")
128}
129
130func newRegisterMailService() {
131	if !Cfg.Section("service").Key("REGISTER_EMAIL_CONFIRM").MustBool() {
132		return
133	} else if MailService == nil {
134		log.Warn("Register Mail Service: Mail Service is not enabled")
135		return
136	}
137	Service.RegisterEmailConfirm = true
138	log.Info("Register Mail Service Enabled")
139}
140
141func newNotifyMailService() {
142	if !Cfg.Section("service").Key("ENABLE_NOTIFY_MAIL").MustBool() {
143		return
144	} else if MailService == nil {
145		log.Warn("Notify Mail Service: Mail Service is not enabled")
146		return
147	}
148	Service.EnableNotifyMail = true
149	log.Info("Notify Mail Service Enabled")
150}
151