mirror of https://github.com/go-gitea/gitea
82 lines
1.8 KiB
Go
82 lines
1.8 KiB
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
|
|
// Use of this source code is governed by a MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package smtp
|
|
|
|
import (
|
|
"crypto/tls"
|
|
"errors"
|
|
"fmt"
|
|
"net/smtp"
|
|
|
|
"code.gitea.io/gitea/models"
|
|
)
|
|
|
|
// _________ __________________________
|
|
// / _____/ / \__ ___/\______ \
|
|
// \_____ \ / \ / \| | | ___/
|
|
// / \/ Y \ | | |
|
|
// /_______ /\____|__ /____| |____|
|
|
// \/ \/
|
|
|
|
type loginAuthenticator struct {
|
|
username, password string
|
|
}
|
|
|
|
func (auth *loginAuthenticator) Start(server *smtp.ServerInfo) (string, []byte, error) {
|
|
return "LOGIN", []byte(auth.username), nil
|
|
}
|
|
|
|
func (auth *loginAuthenticator) Next(fromServer []byte, more bool) ([]byte, error) {
|
|
if more {
|
|
switch string(fromServer) {
|
|
case "Username:":
|
|
return []byte(auth.username), nil
|
|
case "Password:":
|
|
return []byte(auth.password), nil
|
|
}
|
|
}
|
|
return nil, nil
|
|
}
|
|
|
|
// SMTP authentication type names.
|
|
const (
|
|
PlainAuthentication = "PLAIN"
|
|
LoginAuthentication = "LOGIN"
|
|
)
|
|
|
|
// Authenticators contains available SMTP authentication type names.
|
|
var Authenticators = []string{PlainAuthentication, LoginAuthentication}
|
|
|
|
// Authenticate performs an SMTP authentication.
|
|
func Authenticate(a smtp.Auth, source *Source) error {
|
|
c, err := smtp.Dial(fmt.Sprintf("%s:%d", source.Host, source.Port))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer c.Close()
|
|
|
|
if err = c.Hello("gogs"); err != nil {
|
|
return err
|
|
}
|
|
|
|
if source.TLS {
|
|
if ok, _ := c.Extension("STARTTLS"); ok {
|
|
if err = c.StartTLS(&tls.Config{
|
|
InsecureSkipVerify: source.SkipVerify,
|
|
ServerName: source.Host,
|
|
}); err != nil {
|
|
return err
|
|
}
|
|
} else {
|
|
return errors.New("SMTP server unsupports TLS")
|
|
}
|
|
}
|
|
|
|
if ok, _ := c.Extension("AUTH"); ok {
|
|
return c.Auth(a)
|
|
}
|
|
return models.ErrUnsupportedLoginType
|
|
}
|