61 lines
1.3 KiB
Go
61 lines
1.3 KiB
Go
package mailer
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import (
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"bytes"
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"embed"
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"text/template"
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"time"
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"github.com/go-mail/mail/v2"
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)
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//go:embed "templates"
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var templateFS embed.FS
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type Mailer struct {
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dialer *mail.Dialer
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sender string
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}
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func New(host string, port int, username, password, sender string) Mailer {
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dialer := mail.NewDialer(host, port, username, password)
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dialer.Timeout = 5 * time.Second
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return Mailer{
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dialer: dialer,
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sender: sender,
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}
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}
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func (m *Mailer) Send(recipient, templateFile string, data any) error {
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tmpl, err := template.New("email").ParseFS(templateFS, "templates/"+templateFile)
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if err != nil {
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return err
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}
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subject := new(bytes.Buffer)
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err = tmpl.ExecuteTemplate(subject, "subject", data)
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if err != nil {
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return err
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}
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plainBody := new(bytes.Buffer)
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err = tmpl.ExecuteTemplate(plainBody, "plainBody", data)
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if err != nil {
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return err
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}
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htmlBody := new(bytes.Buffer)
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err = tmpl.ExecuteTemplate(htmlBody, "htmlBody", data)
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if err != nil {
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return err
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}
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msg := mail.NewMessage()
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msg.SetHeader("To", recipient)
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msg.SetHeader("From", m.sender)
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msg.SetHeader("Subject", subject.String())
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msg.SetBody("text/plain", plainBody.String())
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msg.AddAlternative("text/html", htmlBody.String())
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err = m.dialer.DialAndSend(msg)
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if err != nil {
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return err
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}
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return nil
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}
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