87 lines
2.3 KiB
Go
87 lines
2.3 KiB
Go
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package main
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import (
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"bytes"
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"fmt"
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ht "html/template"
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"net/smtp"
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"os"
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tt "text/template"
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)
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type emailNotificationText struct {
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emailNotification
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Html ht.HTML
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}
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type emailNotificationPlugs struct {
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Origin string
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Kind string
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Subject string
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UnsubscribeSecretHex string
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Notifications []emailNotificationText
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}
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func smtpEmailNotification(to string, toName string, unsubscribeSecretHex string, notifications []emailNotificationText, kind string) error {
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var subject string
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if kind == "reply" {
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var verb string
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if len(notifications) > 1 {
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verb = "replies"
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} else {
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verb = "reply"
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}
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subject = fmt.Sprintf("%d new comment %s", len(notifications), verb)
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} else {
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var verb string
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if len(notifications) > 1 {
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verb = "comments"
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} else {
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verb = "comment"
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}
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if kind == "pending-moderation" {
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subject = fmt.Sprintf("%d new %s pending moderation", len(notifications), verb)
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} else {
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subject = fmt.Sprintf("%d new %s on your website", len(notifications), verb)
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}
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}
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h, err := tt.New("header").Parse(`MIME-Version: 1.0
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From: Commento <{{.FromAddress}}>
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To: {{.ToName}} <{{.ToAddress}}>
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Content-Type: text/html; charset=UTF-8
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Subject: {{.Subject}}
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`)
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var header bytes.Buffer
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h.Execute(&header, &headerPlugs{FromAddress: os.Getenv("SMTP_FROM_ADDRESS"), ToAddress: to, ToName: toName, Subject: "[Commento] " + subject})
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t, err := ht.ParseFiles(fmt.Sprintf("%s/templates/email-notification.txt", os.Getenv("STATIC")))
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if err != nil {
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logger.Errorf("cannot parse %s/templates/email-notification.txt: %v", os.Getenv("STATIC"), err)
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return errorMalformedTemplate
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}
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var body bytes.Buffer
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err = t.Execute(&body, &emailNotificationPlugs{
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Origin: os.Getenv("ORIGIN"),
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Kind: kind,
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Subject: subject,
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UnsubscribeSecretHex: unsubscribeSecretHex,
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Notifications: notifications,
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})
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if err != nil {
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logger.Errorf("error generating templated HTML for email notification: %v", err)
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return err
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}
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err = smtp.SendMail(os.Getenv("SMTP_HOST")+":"+os.Getenv("SMTP_PORT"), smtpAuth, os.Getenv("SMTP_FROM_ADDRESS"), []string{to}, concat(header, body))
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if err != nil {
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logger.Errorf("cannot send email notification: %v", err)
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return errorCannotSendEmail
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}
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return nil
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}
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