happyDomain/actions/newsletter_listmonk.go

117 lines
4.3 KiB
Go

// Copyright or © or Copr. happyDNS (2023)
//
// contact@happydomain.org
//
// This software is a computer program whose purpose is to provide a modern
// interface to interact with DNS systems.
//
// This software is governed by the CeCILL license under French law and abiding
// by the rules of distribution of free software. You can use, modify and/or
// redistribute the software under the terms of the CeCILL license as
// circulated by CEA, CNRS and INRIA at the following URL
// "http://www.cecill.info".
//
// As a counterpart to the access to the source code and rights to copy, modify
// and redistribute granted by the license, users are provided only with a
// limited warranty and the software's author, the holder of the economic
// rights, and the successive licensors have only limited liability.
//
// In this respect, the user's attention is drawn to the risks associated with
// loading, using, modifying and/or developing or reproducing the software by
// the user in light of its specific status of free software, that may mean
// that it is complicated to manipulate, and that also therefore means that it
// is reserved for developers and experienced professionals having in-depth
// computer knowledge. Users are therefore encouraged to load and test the
// software's suitability as regards their requirements in conditions enabling
// the security of their systems and/or data to be ensured and, more generally,
// to use and operate it in the same conditions as regards security.
//
// The fact that you are presently reading this means that you have had
// knowledge of the CeCILL license and that you accept its terms.
//go:build listmonk
package actions
import (
"bytes"
"encoding/json"
"flag"
"fmt"
"log"
"net/http"
"path/filepath"
"git.happydns.org/happyDomain/config"
"git.happydns.org/happyDomain/model"
)
var (
ListmonkURL config.URL
ListmonkId int
)
type ListmonkSubscriber struct {
Email string `json:"email"`
Name string `json:"name"`
Status string `json:"status,omitempty"`
Lists []int `json:"lists"`
Attribs map[string]interface{} `json:"attribs,omitempty"`
PreconfirmSubscriptions bool `json:"preconfirm_subscriptions,omitempty"`
}
func init() {
flag.Var(&ListmonkURL, "newsletter-server-url", "Base URL of the listmonk newsletter server")
flag.IntVar(&ListmonkId, "newsletter-id", 1, "Listmonk identifier of the list receiving the new user")
}
func SubscribeToNewsletter(u *happydns.User) (err error) {
if ListmonkURL.URL == nil {
if ListmonkId != 0 {
log.Println("SubscribeToNewsletter: not subscribing user as newsletter server is not defined.")
}
return nil
}
url := ListmonkURL.URL
url.Path = filepath.Join(url.Path, "api/subscribers")
jsonForm := &ListmonkSubscriber{
Email: u.Email,
Name: genUsername(u.Email),
Status: "enabled",
Lists: []int{ListmonkId},
PreconfirmSubscriptions: true,
}
j, err := json.Marshal(jsonForm)
if err != nil {
log.Printf("SubscribeToNewsletter: unable to encode the first request body: %s", err.Error())
return fmt.Errorf("an error occured when trying to subscribe to the newsletter. Please try again later.")
}
req, err := http.NewRequest("POST", url.String(), bytes.NewReader(j))
if err != nil {
log.Printf("SubscribeToNewsletter: unable to create the first request: %s", err.Error())
return fmt.Errorf("an error occured when trying to subscribe to the newsletter. Please try again later.")
}
req.Header.Set("Content-Type", "application/json")
resp, err := http.DefaultClient.Do(req)
if err != nil {
log.Printf("SubscribeToNewsletter: unable to perform the first request body: %s", err.Error())
return fmt.Errorf("an error occured when trying to subscribe to the newsletter. Please try again later.")
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
var msg map[string]string
dec := json.NewDecoder(resp.Body)
dec.Decode(&msg)
log.Printf("SubscribeToNewsletter: unable to perform the first request body: %s", msg["message"])
return fmt.Errorf("an error occured when trying to subscribe to the newsletter. Please try again later.")
}
return
}