Golang smtp.PlainAuth函数代码示例

func (self *MailMessage) Send() error {
	var auth smtp.Auth

	if err := self.Validate(); err != nil {
		return err
	}

	to := make([]string, len(self.To))
	for i := range self.To {
		to[i] = self.To[i].Address
	}

	from := self.From.Address
	if from == "" {
		from = AppConfig.smtpUser // Config.From.Address
	}

	addr := fmt.Sprintf("%s:%d", AppConfig.smtpHost, AppConfig.smtpPort)

	if AppConfig.smtpTLS {
		auth = fakeAuth{smtp.PlainAuth("", AppConfig.smtpUser,
			AppConfig.smtpPassword, AppConfig.smtpHost)}
	} else {
		auth = smtp.PlainAuth("", AppConfig.smtpUser, AppConfig.smtpPassword,
			AppConfig.smtpHost)
	}

	return smtp.SendMail(addr, auth, from, to, []byte(self.String()))
}

// Sends the content passed as parameter to the recipient list
// of the given batch result
func (s *SmtpConfig) sendEmailHtml(r *BatchResult, content string) {

	mime := "MIME-version: 1.0;\nContent-Type: text/html; charset=\"UTF-8\";\n\n"
	subject := fmt.Sprintf("Subject: MysqlBatch Results for the batch \"%s\"\n", r.BatchName)
	TraceActivity.Printf("sending the email : %s \n", subject)

	dest := make([]string, 0)
	for _, d := range r.Recipients.RecipientList {
		dest = append(dest, d.Address)
	}

	auth := smtp.PlainAuth(
		"",
		s.User,
		s.Password,
		s.Server,
	)
	err := smtp.SendMail(
		s.Server+":"+s.Port,
		auth,
		s.getSender(),
		dest,
		[]byte(subject+mime+content),
	)
	if err != nil {
		TraceActivity.Printf("error sending the email : %s \n", err.Error())
		log.Fatal(err)
	}
}

func getSMTPAuth(hasAuth bool, mechs string) (smtp.Auth, *tls.Config, error) {
	if !hasAuth {
		return nil, nil, nil
	}

	username := os.Getenv("SMTP_AUTH_USERNAME")

	for _, mech := range strings.Split(mechs, " ") {
		switch mech {
		case "CRAM-MD5":
			secret := os.Getenv("SMTP_AUTH_SECRET")
			if secret == "" {
				continue
			}
			return smtp.CRAMMD5Auth(username, secret), nil, nil
		case "PLAIN":
			password := os.Getenv("SMTP_AUTH_PASSWORD")
			if password == "" {
				continue
			}
			identity := os.Getenv("SMTP_AUTH_IDENTITY")

			// We need to know the hostname for both auth and TLS.
			host, _, err := net.SplitHostPort(*smtpSmartHost)
			if err != nil {
				return nil, nil, fmt.Errorf("invalid address: %s", err)
			}

			auth := smtp.PlainAuth(identity, username, password, host)
			cfg := &tls.Config{ServerName: host}
			return auth, cfg, nil
		}
	}
	return nil, nil, nil
}

func alert(domain string, error_message string) {

	fmt.Println("Sending mail")

	subject := fmt.Sprintf("Subject: %s is down\r\n\r\n", domain)

	auth := smtp.PlainAuth(
		"",
		config.SMTP.Username,
		config.SMTP.Password,
		config.SMTP.Host,
	)

	err := smtp.SendMail(
		config.SMTP.OutgoingServer,
		auth,
		config.SMTP.From,
		config.ToEmail,
		[]byte(subject+error_message),
	)

	if err != nil {
		fmt.Println(err)
	} else {
		fmt.Println("Mail sent")
	}

}

// CreateMailer is a constructor for gsmtp.Mailer
func CreateMailer(username, password, host, port string) (m *Mailer) {
	m = &Mailer{
		auth:    smtp.PlainAuth("", username, password, host),
		address: fmt.Sprintf("%v:%v", host, port),
	}
	return m
}

// Send mail.
func (mail Config) Send(to, subject, template string, args map[string]interface{}) {
	switch mail.Mode {
	case "smtp":
		host := mail.Config["host"]
		sender := mail.Config["sender"]
		user, useAuth := mail.Config["username"]
		password, _ := mail.Config["password"]

		var auth smtp.Auth
		if useAuth {
			auth = smtp.PlainAuth("", user, password, host)
		}

		var buf bytes.Buffer
		buf.WriteString("From: ")
		buf.WriteString(sender)
		buf.WriteString("\n")
		buf.WriteString("To: ")
		buf.WriteString(to)
		buf.WriteString("\n")
		buf.WriteString("Subject: ")
		buf.WriteString(subject)
		buf.WriteString("\n\n")
		tmpl.ExecuteTemplate(&buf, template, args)

		smtp.SendMail(host, auth, sender, []string{to}, bytes.Replace([]byte{'\n'}, buf.Bytes(), []byte{'\n', '\r'}, -1))
	}
}

func (self mailerImpl) Send(mail Mail) error {
	e := email.NewEmail()
	if mail.From != "" {
		e.From = mail.From
	} else {
		e.From = self.cfg.Email
	}
	e.To = mail.To
	e.Cc = mail.Cc
	e.Bcc = mail.Bcc
	e.Subject = mail.Subject
	e.HTML = []byte(mail.Body)

	for _, attachment := range mail.Attachments {
		e.AttachFile(attachment)
	}

	hostAndPort := strings.Join([]string{
		self.cfg.Host,
		strconv.Itoa(self.cfg.Port),
	}, ":")

	plainAuth := smtp.PlainAuth(
		"", // identity
		self.cfg.Email,
		self.cfg.Password,
		self.cfg.Host,
	)

	return e.Send(hostAndPort, plainAuth)
}

// Send sends the composed email
func (email *email) Send(address string) error {
	var auth smtp.Auth

	from := email.getFrom()
	if from == "" {
		return errors.New(`Mail Error: No "From" address specified.`)
	}

	if len(email.recipients) < 1 {
		return errors.New("Mail Error: No recipient specified.")
	}

	msg := email.GetMessage()

	host, port, err := net.SplitHostPort(address)
	if err != nil {
		return errors.New("Mail Error: " + err.Error())
	}

	if email.Username != "" || email.Password != "" {
		auth = smtp.PlainAuth("", email.Username, email.Password, host)
	}

	return send(host, port, from, email.recipients, msg, auth, email.Encryption, email.TLSConfig, email.ConnectTimeout)
}

func (this *EmailService) SendEmail(to, subject, body string) (ok bool, e string) {
	InitEmailFromDb()

	if host == "" || emailPort == "" || username == "" || password == "" {
		return
	}
	hp := strings.Split(host, ":")
	auth := smtp.PlainAuth("", username, password, hp[0])

	var content_type string

	mailtype := "html"
	if mailtype == "html" {
		content_type = "Content-Type: text/" + mailtype + "; charset=UTF-8"
	} else {
		content_type = "Content-Type: text/plain" + "; charset=UTF-8"
	}

	msg := []byte("To: " + to + "\r\nFrom: " + username + "<" + username + ">\r\nSubject: " + subject + "\r\n" + content_type + "\r\n\r\n" + body)
	send_to := strings.Split(to, ";")
	err := smtp.SendMail(host+":"+emailPort, auth, username, send_to, msg)

	if err != nil {
		e = fmt.Sprint(err)
		return
	}
	ok = true
	return
}

func (e *Email) send(events []notices.Event) error {
	if e.debounce {
		events = e.cleanupEvents(events)
	}

	if len(events) == 0 {
		return nil
	}

	identity := e.params["identity"]
	from := e.params["from"]
	to := e.params["to"]
	password := e.params["password"]
	host := e.params["host"]
	port := e.params["port"]

	auth := smtp.PlainAuth(identity, from, password, host)

	buf := bytes.NewBuffer([]byte{})
	if err := e.tmpl.Execute(buf, events); err != nil {
		return err
	}
	msg := buf.String()

	body := "From: " + from + "\r\n"
	body += "To: " + to + "\r\n"
	body += "Subject: " + e.subject(events) + "\r\n"
	body += "MIME-Version: 1.0\r\n"
	body += "Content-Type: text/plain; charset=\"utf-8\"\r\n"
	body += "Content-Transfer-Encoding: base64\r\n"
	body += base64.StdEncoding.EncodeToString([]byte(msg))

	return smtp.SendMail(host+":"+port, auth, from, []string{to}, []byte(body))
}

func sendEmail(count int) {
	if notificationsEnabled == false {
		return
	}
	fmt.Println("Sending the email")

	subjectString := "ALERT: INVENTORY LOW"
	bodyString := ""
	if count == 0 {
		bodyString = "Out of items, please refill"
	} else if count == 1 {
		bodyString = "You only have 1 item left, order some moar"
	} else if count < 3 {
		bodyString = "Running low, be aware"
	}

	go sendSlackMessage(bodyString)
	emailUser := &EmailUser{"monitor.inventory", "squaresquaresquare1!", "smtp.gmail.com", 587}
	auth := smtp.PlainAuth("",
		emailUser.Username,
		emailUser.Password,
		emailUser.EmailServer)

	emailBody := fmt.Sprintf("From: AlwaysBeer\nTo: Dear Customer\nSubject: %s\n\n%s\nBottles Left: %d\n", subjectString, bodyString, count)
	err := smtp.SendMail(emailUser.EmailServer+":"+strconv.Itoa(emailUser.Port), auth,
		emailUser.Username,
		emailList,
		[]byte(emailBody))
	if err != nil {
		fmt.Println("ERROR: attempting to send a mail ", err)
	}
}

func (fm *FeedMailer) mail(ch *rss.Channel, item *rss.Item) error {
	date, _ := item.ParsedPubDate()
	data := struct {
		SubjectPrefix, ChanTitle, ItemTitle string
		Date                                time.Time
		Links                               []*rss.Link
		Description                         string
		Content                             *rss.Content
	}{fm.prof.SubjectPrefix, ch.Title, item.Title, date,
		item.Links, item.Description, item.Content}

	msg := &bytes.Buffer{}
	if err := mailTemplate.Execute(msg, data); err != nil {
		return err
	}

	log.Printf("Sending e-mail: [%s] %s", ch.Title, item.Title)
	auth := smtp.PlainAuth("", fm.prof.SmtpUser, fm.prof.SmtpPass, fm.prof.SmtpHost)
	err := smtp.SendMail(fm.prof.SmtpAddr, auth, fm.prof.SrcEmail,
		fm.prof.DstEmails, msg.Bytes())
	if err != nil {
		return err
	}
	return nil
}

// Send sends the message that has been setup.
func (m *Message) Send(c *Configuration) {
	emailUser := &GmailConf{c.Username, c.Password, c.Server, c.Port}
	auth := smtp.PlainAuth("", emailUser.Username, emailUser.Password, emailUser.EmailServer)

	var err error
	var doc bytes.Buffer

	err = smtp.SendMail(fmt.Sprintf("%s:%s", emailUser.EmailServer, strconv.Itoa(emailUser.Port)),
		auth,
		emailUser.Username,
		[]string{"[email protected]"},
		doc.Bytes())
	if err != nil {
		log.Fatalln(err)
	}

	t, err := template.New("emailTemplate").Parse(emailTemplate)
	if err != nil {
		log.Fatalln("error trying to parse mail template")
	}

	err = t.Execute(&doc, m)
	if err != nil {
		log.Fatalln(err)
	}
}

// send a message through email
func sendReportMail(subject, body string) {
	clear()
	// indicate that mail is being sent
	fmt.Printf("Sending mail to %s...\n", RCVR_ADD)
	var err error        // error
	var doc bytes.Buffer // buffer of bytes
	// authorize email
	auth := smtp.PlainAuth("", DIVYA_ADD, DIVYA_PWD, EMAIL_SRV)
	// setup a context for the mail
	context := &SmtpTemplateData{"Divya", DIVYA_ADD, RCVR_ADD, subject, body}
	// set up template
	temp := template.New("Email Template")
	temp, err = temp.Parse(TEMPLATE)
	if err != nil {
		log.Print("error trying to parse mail template")
	}
	// write the mail using template and context
	err = temp.Execute(&doc, context)
	if err != nil {
		log.Print("error trying to execute mail template")
	}
	// send mail
	err = smtp.SendMail(EMAIL_SRV+":"+strconv.Itoa(PORT), auth, DIVYA_ADD,
		[]string{RCVR_ADD}, doc.Bytes())
	if err != nil {
		log.Print("ERROR: attempting to send a mail ", err)
	} else {
		fmt.Println("Mail sent successfully!")
	}
}

// NewMailer returns a mailer. The given parameters are used to connect to the
// SMTP server via a PLAIN authentication mechanism.
func NewMailer(host string, username string, password string, port int, settings ...MailerSetting) *Mailer {
	return NewCustomMailer(
		fmt.Sprintf("%s:%d", host, port),
		smtp.PlainAuth("", username, password, host),
		settings...,
	)
}