79 lines
1.8 KiB
Go
79 lines
1.8 KiB
Go
package main
|
|
|
|
import (
|
|
"bytes"
|
|
"embed"
|
|
"fmt"
|
|
"text/template"
|
|
"time"
|
|
|
|
mail "github.com/xhit/go-simple-mail/v2"
|
|
)
|
|
|
|
//go:embed templates
|
|
var emailTemplateFS embed.FS
|
|
|
|
func (app *application) SendMail(from, to, subject, tmpl string, data interface{}) error {
|
|
templateToRender := fmt.Sprintf("templates/%s.html.gohtml", tmpl)
|
|
|
|
t, err := template.New("email-html").ParseFS(emailTemplateFS, templateToRender)
|
|
if err != nil {
|
|
app.errorLog.Println(err)
|
|
return err
|
|
}
|
|
|
|
var tpl bytes.Buffer
|
|
if err = t.ExecuteTemplate(&tpl, "body", data); err != nil {
|
|
app.errorLog.Println(err)
|
|
return err
|
|
}
|
|
|
|
formattedMessage := tpl.String()
|
|
|
|
templateToRender = fmt.Sprintf("templates/%s.plain.gohtml", tmpl)
|
|
t, err = template.New("email-plain").ParseFS(emailTemplateFS, templateToRender)
|
|
if err != nil {
|
|
app.errorLog.Println(err)
|
|
return err
|
|
}
|
|
if err = t.ExecuteTemplate(&tpl, "body", data); err != nil {
|
|
app.errorLog.Println(err)
|
|
return err
|
|
}
|
|
|
|
plainMessage := tpl.String()
|
|
|
|
app.infoLog.Println(formattedMessage, plainMessage)
|
|
|
|
// send the mail
|
|
server := mail.NewSMTPClient()
|
|
server.Host = app.config.smtp.host
|
|
server.Port = app.config.smtp.port
|
|
// NOTE: not needed for MailHog
|
|
// server.Username = app.config.smtp.username
|
|
// server.Password = app.config.smtp.password
|
|
// server.Encryption = mail.EncryptionTLS
|
|
server.KeepAlive = false
|
|
server.ConnectTimeout = 10 * time.Second
|
|
server.SendTimeout = 10 * time.Second
|
|
|
|
smtpClient, err := server.Connect()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
email := mail.NewMSG()
|
|
email.SetFrom(from).AddTo(to).SetSubject(subject)
|
|
email.SetBody(mail.TextHTML, formattedMessage)
|
|
email.AddAlternative(mail.TextPlain, plainMessage)
|
|
|
|
err = email.Send(smtpClient)
|
|
if err != nil {
|
|
app.errorLog.Println(err)
|
|
return err
|
|
}
|
|
|
|
app.infoLog.Println("send mail")
|
|
|
|
return nil
|
|
}
|