Rename variables for easy reference

pkg/http/client.go

@@ -201,6 +201,7 @@ func (r *HTTPClient) ensureReachableHost(req *http.Request) {
 	if !strings.Contains(req.Host, ".download.real-debrid.") {
 		return
 	}
+	// skip CDN servers
 	if req.Host[0] >= 'a' && req.Host[0] <= 'z' {
 		return
 	}
@@ -216,16 +217,18 @@ func (r *HTTPClient) ensureReachableHost(req *http.Request) {
 	} else if strings.HasSuffix(req.Host, ".cloud") {
 		newHost = strings.Replace(req.Host, ".cloud", ".com", 1)
 	}
+	// check if newHost is reachable
 	if r.CheckIfHostIsReachable(newHost) {
 		req.Host = newHost
 		req.URL.Host = req.Host
 		return
 	}
-
+	// just pick a random host
 	req.Host = r.hosts[rand.Intn(len(r.hosts))]
 	req.URL.Host = req.Host
 }
 
+// CheckIfHostIsReachable checks if the given host is passed in the list of reachable hosts
 func (r *HTTPClient) CheckIfHostIsReachable(reqHost string) bool {
 	for _, host := range r.hosts {
 		if reqHost == host {

pkg/realdebrid/api.go

@@ -84,9 +84,11 @@ func (rd *RealDebrid) UnrestrictAndVerify(link string) (*Download, error) {
 			if expiry, ok := rd.verifiedLinks.Get(download.ID); ok && expiry > time.Now().Unix() {
 				return download, nil
 			} else if ok {
+				// if the link is expired, remove it from the verified links cache
 				rd.verifiedLinks.Remove(download.ID)
 			}
 
+			// check if the link is still valid (not in the cache or expired)
 			err := rd.downloadClient.VerifyLink(download.Download)
 			if utils.IsBytesLimitReached(err) {
 				rd.TokenManager.SetTokenAsExpired(token, "bandwidth limit exceeded")
@@ -95,6 +97,7 @@ func (rd *RealDebrid) UnrestrictAndVerify(link string) (*Download, error) {
 				rd.verifiedLinks.Set(download.ID, time.Now().Unix()+DOWNLOAD_LINK_EXPIRY)
 				return download, nil
 			}
+			// if verification failed, remove the link from the token map
 			tokenMap.Remove(link)
 		}
 
@@ -419,8 +422,10 @@ func (rd *RealDebrid) DownloadFile(req *http.Request) (*http.Response, error) {
 // MonitorExpiredTokens is a permanent job for monitoring expired tokens if they are still expired
 func (rd *RealDebrid) MonitorExpiredTokens() {
 	sleepPeriod := 1 * time.Minute
+	i := 0
 	rd.workerPool.Submit(func() {
 		for {
+			i++
 			expiredTokens := rd.TokenManager.GetExpiredTokens()
 			for _, token := range expiredTokens {
 				tokenMap, _ := rd.UnrestrictMap.Get(token)
@@ -432,7 +437,12 @@ func (rd *RealDebrid) MonitorExpiredTokens() {
 					}
 					err := rd.downloadClient.VerifyLink(download.Download)
 					if err != nil {
-						skipAll = utils.IsBytesLimitReached(err)
+						if utils.IsBytesLimitReached(err) {
+							if i%15 == 0 {
+								rd.log.Debugf("Token %s is still expired", utils.MaskToken(token))
+							}
+							skipAll = true
+						}
 						return
 					}
 					stillExpired = false