package yp import ( "bytes" "io/ioutil" "net/http" "net/url" "time" "encoding/json" "github.com/owncast/owncast/config" "github.com/owncast/owncast/core/data" "github.com/owncast/owncast/models" log "github.com/sirupsen/logrus" ) const pingInterval = 4 * time.Minute var getStatus func() models.Status var _inErrorState = false //YP is a service for handling listing in the Owncast directory. type YP struct { timer *time.Ticker } type ypPingResponse struct { Key string `json:"key"` Success bool `json:"success"` Error string `json:"error"` ErrorCode int `json:"errorCode"` } type ypPingRequest struct { Key string `json:"key"` URL string `json:"url"` } // NewYP creates a new instance of the YP service handler. func NewYP(getStatusFunc func() models.Status) *YP { getStatus = getStatusFunc return &YP{} } // Start is run when a live stream begins to start pinging YP. func (yp *YP) Start() { yp.timer = time.NewTicker(pingInterval) for range yp.timer.C { yp.ping() } yp.ping() } // Stop stops the pinging of YP. func (yp *YP) Stop() { yp.timer.Stop() } func (yp *YP) ping() { if !data.GetDirectoryEnabled() { return } // Hack: Don't allow ping'ing when offline. // It shouldn't even be trying to, but on some instances the ping timer isn't stopping. if !getStatus().Online { return } myInstanceURL := data.GetServerURL() if myInstanceURL == "" { log.Warnln("Server URL not set in the configuration. Directory access is disabled until this is set.") return } isValidInstanceURL := isUrl(myInstanceURL) if myInstanceURL == "" || !isValidInstanceURL { if !_inErrorState { log.Warnln("YP Error: unable to use", myInstanceURL, "as a public instance URL. Fix this value in your configuration.") } _inErrorState = true return } key := data.GetDirectoryRegistrationKey() log.Traceln("Pinging YP as: ", data.GetServerName(), "with key", key) request := ypPingRequest{ Key: key, URL: myInstanceURL, } req, err := json.Marshal(request) if err != nil { log.Errorln(err) return } pingURL := config.GetDefaults().YPServer + "/api/ping" resp, err := http.Post(pingURL, "application/json", bytes.NewBuffer(req)) //nolint if err != nil { log.Errorln(err) return } defer resp.Body.Close() body, err := ioutil.ReadAll(resp.Body) if err != nil { log.Errorln(err) } pingResponse := ypPingResponse{} err = json.Unmarshal(body, &pingResponse) if err != nil { log.Errorln(err) } if !pingResponse.Success { if !_inErrorState { log.Warnln("YP Ping error returned from service:", pingResponse.Error) } _inErrorState = true return } _inErrorState = false if pingResponse.Key != key { data.SetDirectoryRegistrationKey(key) } } func isUrl(str string) bool { u, err := url.Parse(str) return err == nil && u.Scheme != "" && u.Host != "" }