vain/mail.go

55 lines
1.0 KiB
Go

package vain
import (
"bytes"
"fmt"
"net/mail"
"net/smtp"
)
type Mailer interface {
Send(to mail.Address, msg string) error
}
func NewEmail(from, host string, port int) (*Email, error) {
if _, err := mail.ParseAddress(from); err != nil {
return nil, fmt.Errorf("can't parse an email address for 'from': %v", err)
}
r := &Email{
host: host,
port: port,
from: from,
}
return r, nil
}
type Email struct {
host string
port int
from string
}
func (e Email) Send(to mail.Address, msg string) error {
c, err := smtp.Dial(fmt.Sprintf("%s:%d", e.host, e.port))
if err != nil {
return fmt.Errorf("couldn't dial mail server: %v", err)
}
defer c.Close()
if err := c.Mail(e.from); err != nil {
return err
}
if err := c.Rcpt(to.String()); err != nil {
return err
}
wc, err := c.Data()
if err != nil {
return fmt.Errorf("problem sending mail: %v", err)
}
buf := bytes.NewBufferString("Subject: your api key\n\n" + msg)
buf.WriteTo(wc)
if err := c.Quit(); err != nil {
return nil
}
return err
}