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package email
import (
"crypto/tls"
"fmt"
"math/rand/v2"
"net/smtp"
"strconv"
"time"
)
var Config struct {
Disabled bool
Host string
Port int
ToAddr, FromAddr string
Password string
}
const emailTemplate = `From: %s
To: %s
Subject: %s
Date: %s
Content-Type: text/plain; charset=UTF-8
MIME-Version: 1.0
Message-ID: <%s>
%s`
func ServerError(fault error) error {
if Config.Disabled {
return fault
}
msgid := strconv.FormatInt(rand.Int64(), 10) + "@" + Config.Host
msg := fmt.Sprintf(emailTemplate, Config.FromAddr, Config.ToAddr,
"Error Report", time.Now().Format(time.RFC1123Z), msgid, fault)
tlsConfig := &tls.Config{
InsecureSkipVerify: false,
ServerName: Config.Host,
}
hostWithPort := Config.Host + ":" + strconv.Itoa(Config.Port)
conn, err := tls.Dial("tcp", hostWithPort, tlsConfig)
if err != nil {
return err
}
client, err := smtp.NewClient(conn, Config.Host)
if err != nil {
return err
}
defer client.Close()
auth := smtp.PlainAuth("", Config.FromAddr, Config.Password, Config.Host)
if err := client.Auth(auth); err != nil {
return err
}
if err := client.Mail(Config.FromAddr); err != nil {
return err
}
if err := client.Rcpt(Config.ToAddr); err != nil {
return err
}
wc, err := client.Data()
if err != nil {
return err
}
defer wc.Close()
if _, err = wc.Write([]byte(msg)); err != nil {
return err
}
return nil
}
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