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Beego/logs/smtp.go
Francois 6ce55e8884 Update smtp.go (develop branch)
For mail servers that do not require Authentication we must pass NIL for the SendMail parameter 2 (the auth parameter). Otherwise it fails to send the mail.
2014-07-22 07:21:47 +02:00

111 lines
2.6 KiB
Go

// Beego (http://beego.me/)
//
// @description beego is an open-source, high-performance web framework for the Go programming language.
//
// @link http://github.com/astaxie/beego for the canonical source repository
//
// @license http://github.com/astaxie/beego/blob/master/LICENSE
//
// @authors astaxie
package logs
import (
"encoding/json"
"fmt"
"net/smtp"
"strings"
"time"
)
const (
subjectPhrase = "Diagnostic message from server"
)
// smtpWriter implements LoggerInterface and is used to send emails via given SMTP-server.
type SmtpWriter struct {
Username string `json:"Username"`
Password string `json:"password"`
Host string `json:"Host"`
Subject string `json:"subject"`
RecipientAddresses []string `json:"sendTos"`
Level int `json:"level"`
}
// create smtp writer.
func NewSmtpWriter() LoggerInterface {
return &SmtpWriter{Level: LevelTrace}
}
// init smtp writer with json config.
// config like:
// {
// "Username":"example@gmail.com",
// "password:"password",
// "host":"smtp.gmail.com:465",
// "subject":"email title",
// "sendTos":["email1","email2"],
// "level":LevelError
// }
func (s *SmtpWriter) Init(jsonconfig string) error {
err := json.Unmarshal([]byte(jsonconfig), s)
if err != nil {
return err
}
return nil
}
func (s *SmtpWriter) GetSmtpAuth(host string) smtp.Auth {
if len(strings.Trim(s.Username, " ")) == 0 && len(strings.Trim(s.Password, " ")) == 0 {
return nil
}
return smtp.PlainAuth(
"",
s.Username,
s.Password,
host,
)
}
// write message in smtp writer.
// it will send an email with subject and only this message.
func (s *SmtpWriter) WriteMsg(msg string, level int) error {
if level > s.Level {
return nil
}
hp := strings.Split(s.Host, ":")
// Set up authentication information.
auth := s.GetSmtpAuth(hp[0])
// Connect to the server, authenticate, set the sender and recipient,
// and send the email all in one step.
content_type := "Content-Type: text/plain" + "; charset=UTF-8"
mailmsg := []byte("To: " + strings.Join(s.RecipientAddresses, ";") + "\r\nFrom: " + s.Username + "<" + s.Username +
">\r\nSubject: " + s.Subject + "\r\n" + content_type + "\r\n\r\n" + fmt.Sprintf(".%s", time.Now().Format("2006-01-02 15:04:05")) + msg)
err := smtp.SendMail(
s.Host,
auth,
s.Username,
s.RecipientAddresses,
mailmsg,
)
return err
}
// implementing method. empty.
func (s *SmtpWriter) Flush() {
return
}
// implementing method. empty.
func (s *SmtpWriter) Destroy() {
return
}
func init() {
Register("smtp", NewSmtpWriter)
}