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Add html and custom mail templates

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This commit is contained in:
Melon 2023-10-09 22:48:55 +01:00
parent 34f0950851
commit e45fdfac6a
Signed by: melon
GPG Key ID: 6C9D970C50D26A25
6 changed files with 69 additions and 30 deletions
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41
mail/mail.go
View File

@ -2,7 +2,6 @@ package mail
import ( import (
"bytes" "bytes"
"github.com/emersion/go-message"
"github.com/emersion/go-message/mail" "github.com/emersion/go-message/mail"
"github.com/emersion/go-sasl" "github.com/emersion/go-sasl"
"github.com/emersion/go-smtp" "github.com/emersion/go-smtp"
@ -47,33 +46,45 @@ func (m *Mail) mailCall(to []string, r io.Reader) error {
return smtp.SendMail(m.Server, m.loginInfo(), m.From.String(), to, r) return smtp.SendMail(m.Server, m.loginInfo(), m.From.String(), to, r)
} }
func (m *Mail) genHeaders(subject string, to []*mail.Address, htmlBody bool) mail.Header { func (m *Mail) SendMail(subject string, to []*mail.Address, htmlBody, textBody io.Reader) error {
// generate the email in this template
buf := new(bytes.Buffer)
// setup mail headers
var h mail.Header var h mail.Header
h.SetDate(time.Now()) h.SetDate(time.Now())
h.SetSubject(subject) h.SetSubject(subject)
h.SetAddressList("From", []*mail.Address{m.From.Address}) h.SetAddressList("From", []*mail.Address{m.From.Address})
h.SetAddressList("To", to) h.SetAddressList("To", to)
h.Set("Content-Type", "multipart/alternative")
if htmlBody { // setup html and text alternative headers
h.Set("Content-Type", "text/html; charset=utf-8") var hHtml, hTxt mail.InlineHeader
} else { hHtml.Set("Content-Type", "text/html; charset=utf-8")
h.Set("Content-Type", "text/plain; charset=utf-8") hTxt.Set("Content-Type", "text/plain; charset=utf-8")
}
return h
}
func (m *Mail) SendMail(subject string, to []*mail.Address, htmlBody bool, body io.Reader) error { createWriter, err := mail.CreateWriter(buf, h)
// generate the email in this template
buf := new(bytes.Buffer)
h := m.genHeaders(subject, to, htmlBody)
entity, err := message.New(h.Header, body)
if err != nil { if err != nil {
return err return err
} }
err = entity.WriteTo(buf) inline, err := createWriter.CreateInline()
if err != nil { if err != nil {
return err return err
} }
partHtml, err := inline.CreatePart(hHtml)
if err != nil {
return err
}
if _, err := io.Copy(partHtml, htmlBody); err != nil {
return err
}
partTxt, err := inline.CreatePart(hTxt)
if err != nil {
return err
}
if _, err := io.Copy(partTxt, textBody); err != nil {
return err
}
// convert all to addresses to strings // convert all to addresses to strings
toStr := make([]string, len(to)) toStr := make([]string, len(to))

6
mail/send-template.go
View File

@ -8,11 +8,11 @@ import (
) )
func (m *Mail) SendEmailTemplate(templateName, subject, nameOfUser string, to *mail.Address, data map[string]any) error { func (m *Mail) SendEmailTemplate(templateName, subject, nameOfUser string, to *mail.Address, data map[string]any) error {
buf := new(bytes.Buffer) var bufHtml, bufTxt bytes.Buffer
templates.RenderMailTemplate(buf, templateName, map[string]any{ templates.RenderMailTemplate(&bufHtml, &bufTxt, templateName, map[string]any{
"ServiceName": m.Name, "ServiceName": m.Name,
"Name": nameOfUser, "Name": nameOfUser,
"Data": data, "Data": data,
}) })
return m.SendMail(fmt.Sprintf("%s - %s", subject, m.Name), []*mail.Address{to}, false, buf) return m.SendMail(fmt.Sprintf("%s - %s", subject, m.Name), []*mail.Address{to}, &bufHtml, &bufTxt)
} }

10
mail/templates/mail-account-delete.go.html Normal file
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@ -0,0 +1,10 @@
<!DOCTYPE html>
<html lang="en">
<body>
<p>Hello, {{.Name}}</p>
<p>Your account with {{.ServiceName}} has been disabled and marked for deletion.</p>
<p>Your account will be fully deleted within 48-hours.</p>
<p>You will no longer receive emails from {{.ServiceName}}, unless your email address is used to set up an account.</p>
<p>Regards,<br/>{{.ServiceName}}</p>
</body>
</html>

11
mail/templates/mail-register-admin.go.html Normal file
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@ -0,0 +1,11 @@
<!DOCTYPE html>
<html lang="en">
<body>
<p>Hello, {{.Name}}</p>
<p>Your email address has been registered with {{.ServiceName}} by an administrator.</p>
<p>Please open this link to verify your email address and <a href="{{.Data.RegisterUrl}}" target="_blank">register your account</a></p>
<p>If you did not wish to register for {{.ServiceName}}, then your email has probably been used by mistake.</p>
<p>If the link above is not used to register an account, then no further contact will be made from {{.ServiceName}} and your email address will be deleted from our systems within a 48-hour period.</p>
<p>Regards,<br/>{{.ServiceName}}</p>
</body>
</html>

9
mail/templates/mail-reset-password.go.html Normal file
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@ -0,0 +1,9 @@
<!DOCTYPE html>
<html lang="en">
<body>
<p>Hello, {{.Name}}</p>
<p>Please open this link to <a href="{{.Data.ResetUrl}}" target="_blank">reset your password</a></p>
<p>This link is valid for 10 minutes.</p>
<p>Regards,<br/>{{.ServiceName}}</p>
</body>
</html>

22
mail/templates/mail-verify.go.html
View File

@ -1,12 +1,10 @@
<!-- TODO: format this as HTML --> <!DOCTYPE html>
<html lang="en">
Hello, {{.Name}} <body>
<p>Hello, {{.Name}}</p>
Please open this link to verify your email address: {{.Data.VerifyUrl}} <p>Please open this link to <a href="{{.Data.VerifyUrl}}" target="_blank">verify your email address</a></p>
<p>This link is valid for 10 minutes.</p>
This link is valid for 10 minutes. <p>If you did not create an account with {{.ServiceName}} then please ignore this email and the account will be deleted within a 48-hour period.</p>
<p>Regards,<br/>{{.ServiceName}}</p>
If you did not create an account with {{.ServiceName}} then please ignore this email and the account will be deleted within a 48-hour period. </body>
</html>
Regards,
{{.ServiceName}}