mirror of
https://codeberg.org/forgejo/forgejo.git
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278 lines
9 KiB
Go
278 lines
9 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package setting
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import (
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"net"
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"net/mail"
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"strings"
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"time"
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"code.gitea.io/gitea/modules/log"
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shellquote "github.com/kballard/go-shellquote"
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)
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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 `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 `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 `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 `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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var MailService *Mailer
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func loadMailsFrom(rootCfg ConfigProvider) {
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loadMailerFrom(rootCfg)
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loadRegisterMailFrom(rootCfg)
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loadNotifyMailFrom(rootCfg)
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loadIncomingEmailFrom(rootCfg)
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}
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func loadMailerFrom(rootCfg ConfigProvider) {
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sec := rootCfg.Section("mailer")
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// Check mailer setting.
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if !sec.Key("ENABLED").MustBool() {
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return
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}
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// Handle Deprecations and map on to new configuration
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// DEPRECATED should not be removed because users maybe upgrade from lower version to the latest version
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// if these are removed, the warning will not be shown
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deprecatedSetting(rootCfg, "mailer", "MAILER_TYPE", "mailer", "PROTOCOL", "v1.19.0")
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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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sec.Key("PROTOCOL").MustString("sendmail")
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}
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}
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deprecatedSetting(rootCfg, "mailer", "HOST", "mailer", "SMTP_ADDR", "v1.19.0")
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if sec.HasKey("HOST") && !sec.HasKey("SMTP_ADDR") {
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givenHost := sec.Key("HOST").String()
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addr, port, err := net.SplitHostPort(givenHost)
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if err != nil && strings.Contains(err.Error(), "missing port in address") {
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addr = givenHost
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} else if err != nil {
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log.Fatal("Invalid mailer.HOST (%s): %v", givenHost, err)
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}
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if addr == "" {
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addr = "127.0.0.1"
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}
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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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deprecatedSetting(rootCfg, "mailer", "IS_TLS_ENABLED", "mailer", "PROTOCOL", "v1.19.0")
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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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sec.Key("PROTOCOL").MustString("smtps")
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} else {
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sec.Key("PROTOCOL").MustString("smtp+starttls")
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}
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}
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deprecatedSetting(rootCfg, "mailer", "DISABLE_HELO", "mailer", "ENABLE_HELO", "v1.19.0")
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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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deprecatedSetting(rootCfg, "mailer", "SKIP_VERIFY", "mailer", "FORCE_TRUST_SERVER_CERT", "v1.19.0")
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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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deprecatedSetting(rootCfg, "mailer", "USE_CERTIFICATE", "mailer", "USE_CLIENT_CERT", "v1.19.0")
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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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deprecatedSetting(rootCfg, "mailer", "CERT_FILE", "mailer", "CLIENT_CERT_FILE", "v1.19.0")
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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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deprecatedSetting(rootCfg, "mailer", "KEY_FILE", "mailer", "CLIENT_KEY_FILE", "v1.19.0")
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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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deprecatedSetting(rootCfg, "mailer", "ENABLE_HTML_ALTERNATIVE", "mailer", "SEND_AS_PLAIN_TEXT", "v1.19.0")
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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+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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} else {
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switch MailService.SMTPPort {
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case "25":
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MailService.Protocol = "smtp"
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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+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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if MailService.SMTPPort == "" {
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MailService.SMTPPort = "465"
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}
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}
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}
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}
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// we want to warn if users use SMTP on a non-local IP;
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// we might as well take the opportunity to check that it has an IP at all
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// This check is not needed for sendmail
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switch MailService.Protocol {
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case "sendmail":
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var err error
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MailService.SendmailArgs, err = shellquote.Split(sec.Key("SENDMAIL_ARGS").String())
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if err != nil {
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log.Error("Failed to parse Sendmail args: '%s' with error %v", sec.Key("SENDMAIL_ARGS").String(), err)
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}
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case "smtp", "smtps", "smtp+starttls", "smtp+unix":
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ips := tryResolveAddr(MailService.SMTPAddr)
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if MailService.Protocol == "smtp" {
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for _, ip := range ips {
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if !ip.IsLoopback() {
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log.Warn("connecting over insecure SMTP protocol to non-local address is not recommended")
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break
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}
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}
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}
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case "dummy": // just mention and do nothing
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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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log.Fatal("Invalid mailer.FROM (%s): %v", MailService.From, err)
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}
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MailService.FromName = parsed.Name
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MailService.FromEmail = parsed.Address
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} else {
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log.Error("no mailer.FROM provided, email system may not work.")
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}
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switch MailService.EnvelopeFrom {
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case "":
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MailService.OverrideEnvelopeFrom = false
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case "<>":
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MailService.EnvelopeFrom = ""
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MailService.OverrideEnvelopeFrom = true
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default:
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parsed, err := mail.ParseAddress(MailService.EnvelopeFrom)
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if err != nil {
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log.Fatal("Invalid mailer.ENVELOPE_FROM (%s): %v", MailService.EnvelopeFrom, err)
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}
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MailService.OverrideEnvelopeFrom = true
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MailService.EnvelopeFrom = parsed.Address
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}
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log.Info("Mail Service Enabled")
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}
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func loadRegisterMailFrom(rootCfg ConfigProvider) {
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if !rootCfg.Section("service").Key("REGISTER_EMAIL_CONFIRM").MustBool() {
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return
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} else if MailService == nil {
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log.Warn("Register Mail Service: Mail Service is not enabled")
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return
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}
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Service.RegisterEmailConfirm = true
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log.Info("Register Mail Service Enabled")
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}
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func loadNotifyMailFrom(rootCfg ConfigProvider) {
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if !rootCfg.Section("service").Key("ENABLE_NOTIFY_MAIL").MustBool() {
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return
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} else if MailService == nil {
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log.Warn("Notify Mail Service: Mail Service is not enabled")
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return
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}
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Service.EnableNotifyMail = true
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log.Info("Notify Mail Service Enabled")
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}
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func tryResolveAddr(addr string) []net.IP {
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if strings.HasPrefix(addr, "[") && strings.HasSuffix(addr, "]") {
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addr = addr[1 : len(addr)-1]
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}
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ip := net.ParseIP(addr)
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if ip != nil {
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ips := make([]net.IP, 1)
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ips[0] = ip
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return ips
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}
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ips, err := net.LookupIP(addr)
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if err != nil {
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log.Warn("could not look up mailer.SMTP_ADDR: %v", err)
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return make([]net.IP, 0)
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}
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return ips
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}
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