mirror of
https://github.com/matrix-org/dendrite.git
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101 lines
2.1 KiB
Go
101 lines
2.1 KiB
Go
package mail
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import (
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"bytes"
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"fmt"
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"io/ioutil"
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"net/smtp"
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"text/template"
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"time"
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"github.com/matrix-org/dendrite/internal"
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"github.com/matrix-org/dendrite/setup/config"
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"github.com/matrix-org/dendrite/userapi/api"
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)
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const (
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messageIdByteLength = 48
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)
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type Mailer interface {
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// Send is used in
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// - https://matrix.org/docs/spec/client_server/r0.6.1#post-matrix-client-r0-account-3pid-email-requesttoken
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// - https://matrix.org/docs/spec/client_server/r0.6.1#post-matrix-client-r0-register-email-requesttoken
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// - https://matrix.org/docs/spec/client_server/r0.6.1#post-matrix-client-r0-account-password-email-requesttoken
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Send(*Mail, api.ThreepidSessionType) error
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}
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type SmtpMailer struct {
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conf config.EmailConf
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templates []*template.Template
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}
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type Mail struct {
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To string
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Link string
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Token string
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Extra []string
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}
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type Substitutions struct {
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*Mail
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Date string
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MessageId string
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}
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func (m *SmtpMailer) Send(mail *Mail, t api.ThreepidSessionType) error {
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return m.send(mail, m.templates[t])
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}
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func (m *SmtpMailer) send(mail *Mail, t *template.Template) error {
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messageId, err := internal.GenerateBlob(messageIdByteLength)
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if err != nil {
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return err
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}
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s := Substitutions{
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Mail: mail,
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Date: time.Now().Format(time.RFC1123Z),
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MessageId: messageId,
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}
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b := bytes.Buffer{}
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err = t.Execute(&b, s)
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if err != nil {
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return err
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}
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return smtp.SendMail(
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m.conf.Smtp.Host,
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smtp.PlainAuth(
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"",
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m.conf.Smtp.User,
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m.conf.Smtp.Password,
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m.conf.Smtp.Host,
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),
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m.conf.From,
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[]string{
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mail.To,
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},
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b.Bytes(),
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)
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}
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func NewMailer(c *config.UserAPI) (Mailer, error) {
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sessionTypes := api.ThreepidSessionTypes()
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templates := make([]*template.Template, len(sessionTypes))
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for _, t := range sessionTypes {
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name := t.Name()
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templateRaw, err := ioutil.ReadFile(fmt.Sprintf("%s/%s.eml", c.Email.TemplatesPath, name))
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if err != nil {
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return nil, err
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}
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template, err := template.New(name).Parse(string(templateRaw))
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if err != nil {
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return nil, err
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}
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templates[t] = template
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}
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return &SmtpMailer{
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conf: c.Email,
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templates: templates,
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}, nil
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}
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