func (fbs *Stub) Subscribe(s *admin.Status) {
v := url.Values{}
v.Add("object", "user")
v.Add("fields", "events")
v.Add("verify_token", fbs.verifyToken)
v.Add("callback_url", s.AppDomain+"fbsub/cb")
v.Add(fbs.accessToken[0], fbs.accessToken[1])
s.Log["FB Subscription URL"] = admin.NewLog(true, &admin.FBSubscriptionURL{
U: SubURL,
V: v,
})
res, err := http.PostForm(SubURL, v)
ok := err == nil && res.StatusCode == http.StatusOK
s.Log["FB Subscription Response"] = admin.NewLog(ok, res)
}
func (fbs *Stub) VerifySub(s *admin.Status, w http.ResponseWriter, r *http.Request) (int, []byte) {
ok := r.FormValue("hub.mode") == "subscribe" && r.FormValue("hub.verify_token") == fbs.verifyToken
s.Log["FB Verification Request"] = admin.NewLog(ok, r)
if !ok {
return http.StatusBadRequest, []byte("hub.mode or verify_token mismatch")
}
return http.StatusOK, []byte(r.FormValue("hub.challenge"))
}
func (fbs *Stub) OAuth(s *admin.Status) error {
v := url.Values{}
v.Add("client_id", *ClientID)
v.Add("client_secret", *ClientSecret)
v.Add("grant_type", "client_credentials")
res, err := http.Get(fmt.Sprintf("%s/oauth/access_token?%s", EndPoint, v.Encode()))
ok := err == nil && res.StatusCode == http.StatusOK
s.Log["FB Access Token"] = admin.NewLog(ok, res)
if !ok {
return err
}
body, err := ioutil.ReadAll(res.Body)
fbs.accessToken = strings.Split(string(body), "=")
res.Body.Close()
return err
}