distribution/registry/handlers/mail.go

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package handlers
import (
"errors"
"net/smtp"
"strings"
)
// mailer provides fields of email configuration for sending.
type mailer struct {
Addr, Username, Password, From string
Insecure bool
To []string
}
// sendMail allows users to send email, only if mail parameters is configured correctly.
func (mail *mailer) sendMail(subject, message string) error {
addr := strings.Split(mail.Addr, ":")
if len(addr) != 2 {
return errors.New("Invalid Mail Address")
}
host := addr[0]
msg := []byte("To:" + strings.Join(mail.To, ";") +
"\r\nFrom: " + mail.From +
"\r\nSubject: " + subject +
"\r\nContent-Type: text/plain\r\n\r\n" +
message)
auth := smtp.PlainAuth(
"",
mail.Username,
mail.Password,
host,
)
err := smtp.SendMail(
mail.Addr,
auth,
mail.From,
mail.To,
[]byte(msg),
)
if err != nil {
return err
}
return nil
}