listmonk/cmd/tx.go
2022-07-09 10:36:12 +05:30

103 lines
2.5 KiB
Go

package main
import (
"fmt"
"net/http"
"net/textproto"
"github.com/knadh/listmonk/internal/manager"
"github.com/knadh/listmonk/models"
"github.com/labstack/echo/v4"
)
// handleSendTxMessage handles the sending of a transactional message.
func handleSendTxMessage(c echo.Context) error {
var (
app = c.Get("app").(*App)
m models.TxMessage
)
if err := c.Bind(&m); err != nil {
return err
}
// Validate input.
if r, err := validateTxMessage(m, app); err != nil {
return err
} else {
m = r
}
// Get the cached tx template.
tpl, err := app.manager.GetTpl(m.TemplateID)
if err != nil {
return echo.NewHTTPError(http.StatusBadRequest,
app.i18n.Ts("globals.messages.notFound", "name", fmt.Sprintf("template %d", m.TemplateID)))
}
// Get the subscriber.
sub, err := app.core.GetSubscriber(m.SubscriberID, "", m.SubscriberEmail)
if err != nil {
return err
}
// Render the message.
if err := m.Render(sub, tpl); err != nil {
return echo.NewHTTPError(http.StatusBadRequest,
app.i18n.Ts("globals.messages.errorFetching", "name"))
}
// Prepare the final message.
msg := manager.Message{}
msg.Subscriber = sub
msg.To = []string{sub.Email}
msg.From = m.FromEmail
msg.Subject = m.Subject
msg.ContentType = m.ContentType
msg.Messenger = m.Messenger
msg.Body = m.Body
// Optional headers.
if len(m.Headers) != 0 {
msg.Headers = make(textproto.MIMEHeader, len(m.Headers))
for _, set := range m.Headers {
for hdr, val := range set {
msg.Headers.Add(hdr, val)
}
}
}
if err := app.manager.PushMessage(msg); err != nil {
app.log.Printf("error sending message (%s): %v", msg.Subject, err)
return err
}
return c.JSON(http.StatusOK, okResp{true})
}
func validateTxMessage(m models.TxMessage, app *App) (models.TxMessage, error) {
if m.SubscriberEmail == "" && m.SubscriberID == 0 {
return m, echo.NewHTTPError(http.StatusBadRequest,
app.i18n.Ts("globals.messages.missingFields", "name", "subscriber_email or subscriber_id"))
}
if m.SubscriberEmail != "" {
em, err := app.importer.SanitizeEmail(m.SubscriberEmail)
if err != nil {
return m, echo.NewHTTPError(http.StatusBadRequest, err.Error())
}
m.SubscriberEmail = em
}
if m.FromEmail == "" {
m.FromEmail = app.constants.FromEmail
}
if m.Messenger == "" {
m.Messenger = emailMsgr
} else if !app.manager.HasMessenger(m.Messenger) {
return m, echo.NewHTTPError(http.StatusBadRequest, app.i18n.Ts("campaigns.fieldInvalidMessenger", "name", m.Messenger))
}
return m, nil
}