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Correct the fallbacks for mailer configuration (#21945) (#21953)

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Backport #21945

Unfortunately the fallback configuration code for [mailer] that were
added in #18982 are incorrect. When you read a value from an ini section
that key is added. This leads to a failure of the fallback mechanism.
Further there is also a spelling mistake in the startTLS configuration.

This PR restructures the mailer code to first map the deprecated
settings on to the new ones - and then use ini.MapTo to map those on to
the struct with additional validation as necessary.

Ref #21744

Signed-off-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
zeripath 2022-11-27 19:45:59 +00:00 • committed by GitHub
commit 888384a631
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5 changed files with 96 additions and 94 deletions
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2
custom/conf/app.example.ini
View file

@ -1550,7 +1550,7 @@ ROUTER = console
;; Prefix displayed before subject in mail
;SUBJECT_PREFIX =
;;
;; Mail server protocol. One of "smtp", "smtps", "smtp+startls", "smtp+unix", "sendmail", "dummy".
;; Mail server protocol. One of "smtp", "smtps", "smtp+starttls", "smtp+unix", "sendmail", "dummy".
;; - sendmail: use the operating system's `sendmail` command instead of SMTP. This is common on Linux systems.
;; - dummy: send email messages to the log as a testing phase.
;; If your provider does not explicitly say which protocol it uses but does provide a port,

2
docs/content/doc/advanced/config-cheat-sheet.en-us.md
View file

@ -672,7 +672,7 @@ and
[Gitea 1.17 configuration document](https://github.com/go-gitea/gitea/blob/release/v1.17/docs/content/doc/advanced/config-cheat-sheet.en-us.md)
- `ENABLED`: **false**: Enable to use a mail service.
- `PROTOCOL`: **\<empty\>**: Mail server protocol. One of "smtp", "smtps", "smtp+startls", "smtp+unix", "sendmail", "dummy". _Before 1.18, this was inferred from a combination of `MAILER_TYPE` and `IS_TLS_ENABLED`._
- `PROTOCOL`: **\<empty\>**: Mail server protocol. One of "smtp", "smtps", "smtp+starttls", "smtp+unix", "sendmail", "dummy". _Before 1.18, this was inferred from a combination of `MAILER_TYPE` and `IS_TLS_ENABLED`._
- SMTP family, if your provider does not explicitly say which protocol it uses but does provide a port, you can set SMTP_PORT instead and this will be inferred.
- **sendmail** Use the operating system's `sendmail` command instead of SMTP. This is common on Linux systems.
- **dummy** Send email messages to the log as a testing phase.

178
modules/setting/mailer.go
View file

@ -18,32 +18,33 @@ import (
// Mailer represents mail service.
type Mailer struct {
// Mailer
Name string
From string
EnvelopeFrom string
Name string `ini:"NAME"`
From string `ini:"FROM"`
EnvelopeFrom string `ini:"ENVELOPE_FROM"`
OverrideEnvelopeFrom bool `ini:"-"`
FromName string
FromEmail string
SendAsPlainText bool
SubjectPrefix string
FromName string `ini:"-"`
FromEmail string `ini:"-"`
SendAsPlainText bool `ini:"SEND_AS_PLAIN_TEXT"`
SubjectPrefix string `ini:"SUBJECT_PREFIX"`
// SMTP sender
Protocol string
SMTPAddr string
SMTPPort string
User, Passwd string
EnableHelo bool
HeloHostname string
ForceTrustServerCert bool
UseClientCert bool
ClientCertFile string
ClientKeyFile string
Protocol string `ini:"PROTOCOL"`
SMTPAddr string `ini:"SMTP_ADDR"`
SMTPPort string `ini:"SMTP_PORT"`
User string `ini:"USER"`
Passwd string `ini:"PASSWD"`
EnableHelo bool `ini:"ENABLE_HELO"`
HeloHostname string `ini:"HELO_HOSTNAME"`
ForceTrustServerCert bool `ini:"FORCE_TRUST_SERVER_CERT"`
UseClientCert bool `ini:"USE_CLIENT_CERT"`
ClientCertFile string `ini:"CLIENT_CERT_FILE"`
ClientKeyFile string `ini:"CLIENT_KEY_FILE"`
// Sendmail sender
SendmailPath string
SendmailArgs []string
SendmailTimeout time.Duration
SendmailConvertCRLF bool
SendmailPath string `ini:"SENDMAIL_PATH"`
SendmailArgs []string `ini:"-"`
SendmailTimeout time.Duration `ini:"SENDMAIL_TIMEOUT"`
SendmailConvertCRLF bool `ini:"SENDMAIL_CONVERT_CRLF"`
}
// MailService the global mailer
@ -56,35 +57,12 @@ func newMailService() {
return
}
MailService = &Mailer{
Name: sec.Key("NAME").MustString(AppName),
SendAsPlainText: sec.Key("SEND_AS_PLAIN_TEXT").MustBool(false),
Protocol: sec.Key("PROTOCOL").In("", []string{"smtp", "smtps", "smtp+startls", "smtp+unix", "sendmail", "dummy"}),
SMTPAddr: sec.Key("SMTP_ADDR").String(),
SMTPPort: sec.Key("SMTP_PORT").String(),
User: sec.Key("USER").String(),
Passwd: sec.Key("PASSWD").String(),
EnableHelo: sec.Key("ENABLE_HELO").MustBool(true),
HeloHostname: sec.Key("HELO_HOSTNAME").String(),
ForceTrustServerCert: sec.Key("FORCE_TRUST_SERVER_CERT").MustBool(false),
UseClientCert: sec.Key("USE_CLIENT_CERT").MustBool(false),
ClientCertFile: sec.Key("CLIENT_CERT_FILE").String(),
ClientKeyFile: sec.Key("CLIENT_KEY_FILE").String(),
SubjectPrefix: sec.Key("SUBJECT_PREFIX").MustString(""),
SendmailPath: sec.Key("SENDMAIL_PATH").MustString("sendmail"),
SendmailTimeout: sec.Key("SENDMAIL_TIMEOUT").MustDuration(5 * time.Minute),
SendmailConvertCRLF: sec.Key("SENDMAIL_CONVERT_CRLF").MustBool(true),
}
MailService.From = sec.Key("FROM").MustString(MailService.User)
MailService.EnvelopeFrom = sec.Key("ENVELOPE_FROM").MustString("")
// Handle Deprecations and map on to new configuration
// FIXME: DEPRECATED to be removed in v1.19.0
deprecatedSetting("mailer", "MAILER_TYPE", "mailer", "PROTOCOL")
if sec.HasKey("MAILER_TYPE") && !sec.HasKey("PROTOCOL") {
if sec.Key("MAILER_TYPE").String() == "sendmail" {
MailService.Protocol = "sendmail"
sec.Key("PROTOCOL").MustString("sendmail")
}
}
@ -96,31 +74,91 @@ func newMailService() {
if err != nil {
log.Fatal("Invalid mailer.HOST (%s): %v", givenHost, err)
}
MailService.SMTPAddr = addr
MailService.SMTPPort = port
sec.Key("SMTP_ADDR").MustString(addr)
sec.Key("SMTP_PORT").MustString(port)
}
// FIXME: DEPRECATED to be removed in v1.19.0
deprecatedSetting("mailer", "IS_TLS_ENABLED", "mailer", "PROTOCOL")
if sec.HasKey("IS_TLS_ENABLED") && !sec.HasKey("PROTOCOL") {
if sec.Key("IS_TLS_ENABLED").MustBool() {
MailService.Protocol = "smtps"
sec.Key("PROTOCOL").MustString("smtps")
} else {
MailService.Protocol = "smtp+startls"
sec.Key("PROTOCOL").MustString("smtp+starttls")
}
}
// FIXME: DEPRECATED to be removed in v1.19.0
deprecatedSetting("mailer", "DISABLE_HELO", "mailer", "ENABLE_HELO")
if sec.HasKey("DISABLE_HELO") && !sec.HasKey("ENABLE_HELO") {
sec.Key("ENABLE_HELO").MustBool(!sec.Key("DISABLE_HELO").MustBool())
}
// FIXME: DEPRECATED to be removed in v1.19.0
deprecatedSetting("mailer", "SKIP_VERIFY", "mailer", "FORCE_TRUST_SERVER_CERT")
if sec.HasKey("SKIP_VERIFY") && !sec.HasKey("FORCE_TRUST_SERVER_CERT") {
sec.Key("FORCE_TRUST_SERVER_CERT").MustBool(sec.Key("SKIP_VERIFY").MustBool())
}
// FIXME: DEPRECATED to be removed in v1.19.0
deprecatedSetting("mailer", "USE_CERTIFICATE", "mailer", "USE_CLIENT_CERT")
if sec.HasKey("USE_CERTIFICATE") && !sec.HasKey("USE_CLIENT_CERT") {
sec.Key("USE_CLIENT_CERT").MustBool(sec.Key("USE_CERTIFICATE").MustBool())
}
// FIXME: DEPRECATED to be removed in v1.19.0
deprecatedSetting("mailer", "CERT_FILE", "mailer", "CLIENT_CERT_FILE")
if sec.HasKey("CERT_FILE") && !sec.HasKey("CLIENT_CERT_FILE") {
sec.Key("CERT_FILE").MustString(sec.Key("CERT_FILE").String())
}
// FIXME: DEPRECATED to be removed in v1.19.0
deprecatedSetting("mailer", "KEY_FILE", "mailer", "CLIENT_KEY_FILE")
if sec.HasKey("KEY_FILE") && !sec.HasKey("CLIENT_KEY_FILE") {
sec.Key("KEY_FILE").MustString(sec.Key("KEY_FILE").String())
}
// FIXME: DEPRECATED to be removed in v1.19.0
deprecatedSetting("mailer", "ENABLE_HTML_ALTERNATIVE", "mailer", "SEND_AS_PLAIN_TEXT")
if sec.HasKey("ENABLE_HTML_ALTERNATIVE") && !sec.HasKey("SEND_AS_PLAIN_TEXT") {
sec.Key("SEND_AS_PLAIN_TEXT").MustBool(!sec.Key("ENABLE_HTML_ALTERNATIVE").MustBool(false))
}
if sec.HasKey("PROTOCOL") && sec.Key("PROTOCOL").String() == "smtp+startls" {
log.Error("Deprecated fallback `[mailer]` `PROTOCOL = smtp+startls` present. Use `[mailer]` `PROTOCOL = smtp+starttls`` instead. This fallback will be removed in v1.19.0")
sec.Key("PROTOCOL").SetValue("smtp+starttls")
}
// Set default values & validate
sec.Key("NAME").MustString(AppName)
sec.Key("PROTOCOL").In("", []string{"smtp", "smtps", "smtp+starttls", "smtp+unix", "sendmail", "dummy"})
sec.Key("ENABLE_HELO").MustBool(true)
sec.Key("FORCE_TRUST_SERVER_CERT").MustBool(false)
sec.Key("USE_CLIENT_CERT").MustBool(false)
sec.Key("SENDMAIL_PATH").MustString("sendmail")
sec.Key("SENDMAIL_TIMEOUT").MustDuration(5 * time.Minute)
sec.Key("SENDMAIL_CONVERT_CRLF").MustBool(true)
sec.Key("FROM").MustString(sec.Key("USER").String())
// Now map the values on to the MailService
MailService = &Mailer{}
if err := sec.MapTo(MailService); err != nil {
log.Fatal("Unable to map [mailer] section on to MailService. Error: %v", err)
}
// Infer SMTPPort if not set
if MailService.SMTPPort == "" {
switch MailService.Protocol {
case "smtp":
MailService.SMTPPort = "25"
case "smtps":
MailService.SMTPPort = "465"
case "smtp+startls":
case "smtp+starttls":
MailService.SMTPPort = "587"
}
}
// Infer Protocol
if MailService.Protocol == "" {
if strings.ContainsAny(MailService.SMTPAddr, "/\\") {
MailService.Protocol = "smtp+unix"
@ -131,7 +169,7 @@ func newMailService() {
case "465":
MailService.Protocol = "smtps"
case "587":
MailService.Protocol = "smtp+startls"
MailService.Protocol = "smtp+starttls"
default:
log.Error("unable to infer unspecified mailer.PROTOCOL from mailer.SMTP_PORT = %q, assume using smtps", MailService.SMTPPort)
MailService.Protocol = "smtps"
@ -151,42 +189,6 @@ func newMailService() {
}
}
// FIXME: DEPRECATED to be removed in v1.19.0
deprecatedSetting("mailer", "DISABLE_HELO", "mailer", "ENABLE_HELO")
if sec.HasKey("DISABLE_HELO") && !sec.HasKey("ENABLE_HELO") {
MailService.EnableHelo = !sec.Key("DISABLE_HELO").MustBool()
}
// FIXME: DEPRECATED to be removed in v1.19.0
deprecatedSetting("mailer", "SKIP_VERIFY", "mailer", "FORCE_TRUST_SERVER_CERT")
if sec.HasKey("SKIP_VERIFY") && !sec.HasKey("FORCE_TRUST_SERVER_CERT") {
MailService.ForceTrustServerCert = sec.Key("SKIP_VERIFY").MustBool()
}
// FIXME: DEPRECATED to be removed in v1.19.0
deprecatedSetting("mailer", "USE_CERTIFICATE", "mailer", "USE_CLIENT_CERT")
if sec.HasKey("USE_CERTIFICATE") && !sec.HasKey("USE_CLIENT_CERT") {
MailService.UseClientCert = sec.Key("USE_CLIENT_CERT").MustBool()
}
// FIXME: DEPRECATED to be removed in v1.19.0
deprecatedSetting("mailer", "CERT_FILE", "mailer", "CLIENT_CERT_FILE")
if sec.HasKey("CERT_FILE") && !sec.HasKey("CLIENT_CERT_FILE") {
MailService.ClientCertFile = sec.Key("CERT_FILE").String()
}
// FIXME: DEPRECATED to be removed in v1.19.0
deprecatedSetting("mailer", "KEY_FILE", "mailer", "CLIENT_KEY_FILE")
if sec.HasKey("KEY_FILE") && !sec.HasKey("CLIENT_KEY_FILE") {
MailService.ClientKeyFile = sec.Key("KEY_FILE").String()
}
// FIXME: DEPRECATED to be removed in v1.19.0
deprecatedSetting("mailer", "ENABLE_HTML_ALTERNATIVE", "mailer", "SEND_AS_PLAIN_TEXT")
if sec.HasKey("ENABLE_HTML_ALTERNATIVE") && !sec.HasKey("SEND_AS_PLAIN_TEXT") {
MailService.SendAsPlainText = !sec.Key("ENABLE_HTML_ALTERNATIVE").MustBool(false)
}
if MailService.From != "" {
parsed, err := mail.ParseAddress(MailService.From)
if err != nil {

2
modules/setting/setting.go
View file

@ -603,7 +603,7 @@ func LoadForTest(extraConfigs ...string) {
func deprecatedSetting(oldSection, oldKey, newSection, newKey string) {
if Cfg.Section(oldSection).HasKey(oldKey) {
log.Error("Deprecated fallback `[%s]` `%s` present. Use `[%s]` `%s` instead. This fallback will be removed in v1.18.0", oldSection, oldKey, newSection, newKey)
log.Error("Deprecated fallback `[%s]` `%s` present. Use `[%s]` `%s` instead. This fallback will be removed in v1.19.0", oldSection, oldKey, newSection, newKey)
}
}

4
services/mailer/mailer.go
View file

@ -166,7 +166,7 @@ func (s *smtpSender) Send(from string, to []string, msg io.WriterTo) error {
defer conn.Close()
var tlsconfig *tls.Config
if opts.Protocol == "smtps" || opts.Protocol == "smtp+startls" {
if opts.Protocol == "smtps" || opts.Protocol == "smtp+starttls" {
tlsconfig = &tls.Config{
InsecureSkipVerify: opts.ForceTrustServerCert,
ServerName: opts.SMTPAddr,
@ -208,7 +208,7 @@ func (s *smtpSender) Send(from string, to []string, msg io.WriterTo) error {
}
}
if opts.Protocol == "smtp+startls" {
if opts.Protocol == "smtp+starttls" {
hasStartTLS, _ := client.Extension("STARTTLS")
if hasStartTLS {
if err = client.StartTLS(tlsconfig); err != nil {