commento/api/smtp_email_notification.go

66 lines
2.0 KiB
Go

package main
import (
"bytes"
"fmt"
ht "html/template"
"net/smtp"
"os"
tt "text/template"
)
type emailNotificationPlugs struct {
Origin string
Kind string
UnsubscribeSecretHex string
Domain string
Path string
CommentHex string
CommenterName string
Title string
Html ht.HTML
}
func smtpEmailNotification(to string, toName string, kind string, domain string, path string, commentHex string, commenterName string, title string, html string, unsubscribeSecretHex string) error {
h, err := tt.New("header").Parse(`MIME-Version: 1.0
From: Commento <{{.FromAddress}}>
To: {{.ToName}} <{{.ToAddress}}>
Content-Type: text/html; charset=UTF-8
Subject: {{.Subject}}
`)
var header bytes.Buffer
h.Execute(&header, &headerPlugs{FromAddress: os.Getenv("SMTP_FROM_ADDRESS"), ToAddress: to, ToName: toName, Subject: "[Commento] " + title})
t, err := ht.ParseFiles(fmt.Sprintf("%s/templates/email-notification.txt", os.Getenv("STATIC")))
if err != nil {
logger.Errorf("cannot parse %s/templates/email-notification.txt: %v", os.Getenv("STATIC"), err)
return errorMalformedTemplate
}
var body bytes.Buffer
err = t.Execute(&body, &emailNotificationPlugs{
Origin: os.Getenv("ORIGIN"),
Kind: kind,
Domain: domain,
Path: path,
CommentHex: commentHex,
CommenterName: commenterName,
Title: title,
Html: ht.HTML(html),
UnsubscribeSecretHex: unsubscribeSecretHex,
})
if err != nil {
logger.Errorf("error generating templated HTML for email notification: %v", err)
return err
}
err = smtp.SendMail(os.Getenv("SMTP_HOST")+":"+os.Getenv("SMTP_PORT"), smtpAuth, os.Getenv("SMTP_FROM_ADDRESS"), []string{to}, concat(header, body))
if err != nil {
logger.Errorf("cannot send email notification: %v", err)
return errorCannotSendEmail
}
return nil
}