Correct the fallbacks for mailer configuration (#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>
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@ -1590,7 +1590,7 @@ ROUTER = console
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;; Prefix displayed before subject in mail
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;SUBJECT_PREFIX =
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;;
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;; Mail server protocol. One of "smtp", "smtps", "smtp+startls", "smtp+unix", "sendmail", "dummy".
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;; Mail server protocol. One of "smtp", "smtps", "smtp+starttls", "smtp+unix", "sendmail", "dummy".
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;; - sendmail: use the operating system's `sendmail` command instead of SMTP. This is common on Linux systems.
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;; - dummy: send email messages to the log as a testing phase.
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;; If your provider does not explicitly say which protocol it uses but does provide a port,
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@ -713,7 +713,7 @@ and
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[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)
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- `ENABLED`: **false**: Enable to use a mail service.
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- `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`._
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- `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`._
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- 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.
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- **sendmail** Use the operating system's `sendmail` command instead of SMTP. This is common on Linux systems.
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- **dummy** Send email messages to the log as a testing phase.
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@ -18,32 +18,33 @@ import (
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// Mailer represents mail service.
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type Mailer struct {
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// Mailer
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Name string
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From string
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EnvelopeFrom string
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Name string `ini:"NAME"`
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From string `ini:"FROM"`
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EnvelopeFrom string `ini:"ENVELOPE_FROM"`
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OverrideEnvelopeFrom bool `ini:"-"`
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FromName string
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FromEmail string
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SendAsPlainText bool
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SubjectPrefix string
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FromName string `ini:"-"`
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FromEmail string `ini:"-"`
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SendAsPlainText bool `ini:"SEND_AS_PLAIN_TEXT"`
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SubjectPrefix string `ini:"SUBJECT_PREFIX"`
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// SMTP sender
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Protocol string
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SMTPAddr string
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SMTPPort string
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User, Passwd string
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EnableHelo bool
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HeloHostname string
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ForceTrustServerCert bool
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UseClientCert bool
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ClientCertFile string
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ClientKeyFile string
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Protocol string `ini:"PROTOCOL"`
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SMTPAddr string `ini:"SMTP_ADDR"`
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SMTPPort string `ini:"SMTP_PORT"`
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User string `ini:"USER"`
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Passwd string `ini:"PASSWD"`
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EnableHelo bool `ini:"ENABLE_HELO"`
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HeloHostname string `ini:"HELO_HOSTNAME"`
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ForceTrustServerCert bool `ini:"FORCE_TRUST_SERVER_CERT"`
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UseClientCert bool `ini:"USE_CLIENT_CERT"`
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ClientCertFile string `ini:"CLIENT_CERT_FILE"`
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ClientKeyFile string `ini:"CLIENT_KEY_FILE"`
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// Sendmail sender
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SendmailPath string
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SendmailArgs []string
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SendmailTimeout time.Duration
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SendmailConvertCRLF bool
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SendmailPath string `ini:"SENDMAIL_PATH"`
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SendmailArgs []string `ini:"-"`
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SendmailTimeout time.Duration `ini:"SENDMAIL_TIMEOUT"`
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SendmailConvertCRLF bool `ini:"SENDMAIL_CONVERT_CRLF"`
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}
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// MailService the global mailer
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@ -56,35 +57,12 @@ func newMailService() {
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return
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}
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MailService = &Mailer{
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Name: sec.Key("NAME").MustString(AppName),
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SendAsPlainText: sec.Key("SEND_AS_PLAIN_TEXT").MustBool(false),
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Protocol: sec.Key("PROTOCOL").In("", []string{"smtp", "smtps", "smtp+startls", "smtp+unix", "sendmail", "dummy"}),
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SMTPAddr: sec.Key("SMTP_ADDR").String(),
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SMTPPort: sec.Key("SMTP_PORT").String(),
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User: sec.Key("USER").String(),
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Passwd: sec.Key("PASSWD").String(),
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EnableHelo: sec.Key("ENABLE_HELO").MustBool(true),
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HeloHostname: sec.Key("HELO_HOSTNAME").String(),
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ForceTrustServerCert: sec.Key("FORCE_TRUST_SERVER_CERT").MustBool(false),
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UseClientCert: sec.Key("USE_CLIENT_CERT").MustBool(false),
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ClientCertFile: sec.Key("CLIENT_CERT_FILE").String(),
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ClientKeyFile: sec.Key("CLIENT_KEY_FILE").String(),
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SubjectPrefix: sec.Key("SUBJECT_PREFIX").MustString(""),
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SendmailPath: sec.Key("SENDMAIL_PATH").MustString("sendmail"),
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SendmailTimeout: sec.Key("SENDMAIL_TIMEOUT").MustDuration(5 * time.Minute),
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SendmailConvertCRLF: sec.Key("SENDMAIL_CONVERT_CRLF").MustBool(true),
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}
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MailService.From = sec.Key("FROM").MustString(MailService.User)
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MailService.EnvelopeFrom = sec.Key("ENVELOPE_FROM").MustString("")
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// Handle Deprecations and map on to new configuration
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// FIXME: DEPRECATED to be removed in v1.19.0
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deprecatedSetting("mailer", "MAILER_TYPE", "mailer", "PROTOCOL")
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if sec.HasKey("MAILER_TYPE") && !sec.HasKey("PROTOCOL") {
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if sec.Key("MAILER_TYPE").String() == "sendmail" {
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MailService.Protocol = "sendmail"
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sec.Key("PROTOCOL").MustString("sendmail")
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}
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}
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@ -96,31 +74,91 @@ func newMailService() {
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if err != nil {
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log.Fatal("Invalid mailer.HOST (%s): %v", givenHost, err)
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}
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MailService.SMTPAddr = addr
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MailService.SMTPPort = port
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sec.Key("SMTP_ADDR").MustString(addr)
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sec.Key("SMTP_PORT").MustString(port)
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}
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// FIXME: DEPRECATED to be removed in v1.19.0
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deprecatedSetting("mailer", "IS_TLS_ENABLED", "mailer", "PROTOCOL")
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if sec.HasKey("IS_TLS_ENABLED") && !sec.HasKey("PROTOCOL") {
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if sec.Key("IS_TLS_ENABLED").MustBool() {
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MailService.Protocol = "smtps"
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sec.Key("PROTOCOL").MustString("smtps")
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} else {
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MailService.Protocol = "smtp+startls"
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sec.Key("PROTOCOL").MustString("smtp+starttls")
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}
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}
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// FIXME: DEPRECATED to be removed in v1.19.0
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deprecatedSetting("mailer", "DISABLE_HELO", "mailer", "ENABLE_HELO")
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if sec.HasKey("DISABLE_HELO") && !sec.HasKey("ENABLE_HELO") {
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sec.Key("ENABLE_HELO").MustBool(!sec.Key("DISABLE_HELO").MustBool())
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}
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// FIXME: DEPRECATED to be removed in v1.19.0
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deprecatedSetting("mailer", "SKIP_VERIFY", "mailer", "FORCE_TRUST_SERVER_CERT")
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if sec.HasKey("SKIP_VERIFY") && !sec.HasKey("FORCE_TRUST_SERVER_CERT") {
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sec.Key("FORCE_TRUST_SERVER_CERT").MustBool(sec.Key("SKIP_VERIFY").MustBool())
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}
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// FIXME: DEPRECATED to be removed in v1.19.0
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deprecatedSetting("mailer", "USE_CERTIFICATE", "mailer", "USE_CLIENT_CERT")
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if sec.HasKey("USE_CERTIFICATE") && !sec.HasKey("USE_CLIENT_CERT") {
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sec.Key("USE_CLIENT_CERT").MustBool(sec.Key("USE_CERTIFICATE").MustBool())
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}
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// FIXME: DEPRECATED to be removed in v1.19.0
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deprecatedSetting("mailer", "CERT_FILE", "mailer", "CLIENT_CERT_FILE")
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if sec.HasKey("CERT_FILE") && !sec.HasKey("CLIENT_CERT_FILE") {
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sec.Key("CERT_FILE").MustString(sec.Key("CERT_FILE").String())
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}
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// FIXME: DEPRECATED to be removed in v1.19.0
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deprecatedSetting("mailer", "KEY_FILE", "mailer", "CLIENT_KEY_FILE")
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if sec.HasKey("KEY_FILE") && !sec.HasKey("CLIENT_KEY_FILE") {
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sec.Key("KEY_FILE").MustString(sec.Key("KEY_FILE").String())
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}
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// FIXME: DEPRECATED to be removed in v1.19.0
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deprecatedSetting("mailer", "ENABLE_HTML_ALTERNATIVE", "mailer", "SEND_AS_PLAIN_TEXT")
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if sec.HasKey("ENABLE_HTML_ALTERNATIVE") && !sec.HasKey("SEND_AS_PLAIN_TEXT") {
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sec.Key("SEND_AS_PLAIN_TEXT").MustBool(!sec.Key("ENABLE_HTML_ALTERNATIVE").MustBool(false))
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}
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if sec.HasKey("PROTOCOL") && sec.Key("PROTOCOL").String() == "smtp+startls" {
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log.Error("Deprecated fallback `[mailer]` `PROTOCOL = smtp+startls` present. Use `[mailer]` `PROTOCOL = smtp+starttls`` instead. This fallback will be removed in v1.19.0")
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sec.Key("PROTOCOL").SetValue("smtp+starttls")
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}
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// Set default values & validate
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sec.Key("NAME").MustString(AppName)
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sec.Key("PROTOCOL").In("", []string{"smtp", "smtps", "smtp+starttls", "smtp+unix", "sendmail", "dummy"})
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sec.Key("ENABLE_HELO").MustBool(true)
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sec.Key("FORCE_TRUST_SERVER_CERT").MustBool(false)
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sec.Key("USE_CLIENT_CERT").MustBool(false)
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sec.Key("SENDMAIL_PATH").MustString("sendmail")
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sec.Key("SENDMAIL_TIMEOUT").MustDuration(5 * time.Minute)
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sec.Key("SENDMAIL_CONVERT_CRLF").MustBool(true)
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sec.Key("FROM").MustString(sec.Key("USER").String())
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// Now map the values on to the MailService
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MailService = &Mailer{}
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if err := sec.MapTo(MailService); err != nil {
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log.Fatal("Unable to map [mailer] section on to MailService. Error: %v", err)
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}
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// Infer SMTPPort if not set
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if MailService.SMTPPort == "" {
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switch MailService.Protocol {
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case "smtp":
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MailService.SMTPPort = "25"
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case "smtps":
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MailService.SMTPPort = "465"
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case "smtp+startls":
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case "smtp+starttls":
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MailService.SMTPPort = "587"
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}
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}
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// Infer Protocol
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if MailService.Protocol == "" {
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if strings.ContainsAny(MailService.SMTPAddr, "/\\") {
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MailService.Protocol = "smtp+unix"
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@ -131,7 +169,7 @@ func newMailService() {
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case "465":
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MailService.Protocol = "smtps"
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case "587":
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MailService.Protocol = "smtp+startls"
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MailService.Protocol = "smtp+starttls"
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default:
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log.Error("unable to infer unspecified mailer.PROTOCOL from mailer.SMTP_PORT = %q, assume using smtps", MailService.SMTPPort)
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MailService.Protocol = "smtps"
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@ -151,42 +189,6 @@ func newMailService() {
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}
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}
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// FIXME: DEPRECATED to be removed in v1.19.0
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deprecatedSetting("mailer", "DISABLE_HELO", "mailer", "ENABLE_HELO")
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if sec.HasKey("DISABLE_HELO") && !sec.HasKey("ENABLE_HELO") {
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MailService.EnableHelo = !sec.Key("DISABLE_HELO").MustBool()
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}
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// FIXME: DEPRECATED to be removed in v1.19.0
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deprecatedSetting("mailer", "SKIP_VERIFY", "mailer", "FORCE_TRUST_SERVER_CERT")
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if sec.HasKey("SKIP_VERIFY") && !sec.HasKey("FORCE_TRUST_SERVER_CERT") {
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MailService.ForceTrustServerCert = sec.Key("SKIP_VERIFY").MustBool()
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}
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// FIXME: DEPRECATED to be removed in v1.19.0
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deprecatedSetting("mailer", "USE_CERTIFICATE", "mailer", "USE_CLIENT_CERT")
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if sec.HasKey("USE_CERTIFICATE") && !sec.HasKey("USE_CLIENT_CERT") {
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MailService.UseClientCert = sec.Key("USE_CLIENT_CERT").MustBool()
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}
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// FIXME: DEPRECATED to be removed in v1.19.0
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deprecatedSetting("mailer", "CERT_FILE", "mailer", "CLIENT_CERT_FILE")
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if sec.HasKey("CERT_FILE") && !sec.HasKey("CLIENT_CERT_FILE") {
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MailService.ClientCertFile = sec.Key("CERT_FILE").String()
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}
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// FIXME: DEPRECATED to be removed in v1.19.0
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deprecatedSetting("mailer", "KEY_FILE", "mailer", "CLIENT_KEY_FILE")
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if sec.HasKey("KEY_FILE") && !sec.HasKey("CLIENT_KEY_FILE") {
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MailService.ClientKeyFile = sec.Key("KEY_FILE").String()
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}
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// FIXME: DEPRECATED to be removed in v1.19.0
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deprecatedSetting("mailer", "ENABLE_HTML_ALTERNATIVE", "mailer", "SEND_AS_PLAIN_TEXT")
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if sec.HasKey("ENABLE_HTML_ALTERNATIVE") && !sec.HasKey("SEND_AS_PLAIN_TEXT") {
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MailService.SendAsPlainText = !sec.Key("ENABLE_HTML_ALTERNATIVE").MustBool(false)
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}
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if MailService.From != "" {
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parsed, err := mail.ParseAddress(MailService.From)
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if err != nil {
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@ -605,7 +605,7 @@ func LoadForTest(extraConfigs ...string) {
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func deprecatedSetting(oldSection, oldKey, newSection, newKey string) {
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if Cfg.Section(oldSection).HasKey(oldKey) {
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log.Error("Deprecated fallback `[%s]` `%s` present. Use `[%s]` `%s` instead. This fallback will be removed in v1.18.0", oldSection, oldKey, newSection, newKey)
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log.Error("Deprecated fallback `[%s]` `%s` present. Use `[%s]` `%s` instead. This fallback will be removed in v1.19.0", oldSection, oldKey, newSection, newKey)
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}
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}
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@ -166,7 +166,7 @@ func (s *smtpSender) Send(from string, to []string, msg io.WriterTo) error {
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defer conn.Close()
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var tlsconfig *tls.Config
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if opts.Protocol == "smtps" || opts.Protocol == "smtp+startls" {
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if opts.Protocol == "smtps" || opts.Protocol == "smtp+starttls" {
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tlsconfig = &tls.Config{
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InsecureSkipVerify: opts.ForceTrustServerCert,
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ServerName: opts.SMTPAddr,
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@ -208,7 +208,7 @@ func (s *smtpSender) Send(from string, to []string, msg io.WriterTo) error {
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}
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}
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if opts.Protocol == "smtp+startls" {
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if opts.Protocol == "smtp+starttls" {
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hasStartTLS, _ := client.Extension("STARTTLS")
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if hasStartTLS {
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if err = client.StartTLS(tlsconfig); err != nil {
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