Check if host works first before assigning random host

pkg/realdebrid/api.go

@@ -308,7 +308,7 @@ func (rd *RealDebrid) UnrestrictLink(link string, checkFirstByte bool) (*Downloa
 		return nil, fmt.Errorf("undecodable response: %v", err)
 	}
 
-	if checkFirstByte && !rd.CanFetchFirstByte(response.Download) {
+	if checkFirstByte && !rd.client.CanFetchFirstByte(response.Download) {
 		return nil, fmt.Errorf("can't fetch first byte")
 	}
 

pkg/realdebrid/unrestrict.go

@@ -1,30 +0,0 @@
-package realdebrid
-
-import (
-	"net/http"
-)
-
-func (rd *RealDebrid) CanFetchFirstByte(url string) bool {
-	req, err := http.NewRequest("GET", url, nil)
-	if err != nil {
-		return false
-	}
-
-	req.Header.Set("Range", "bytes=0-0")
-
-	resp, err := rd.client.Do(req)
-	if err != nil {
-		return false
-	}
-	defer resp.Body.Close()
-
-	// If server supports partial content
-	if resp.StatusCode/100 == 2 {
-		buffer := make([]byte, 1)
-		_, err = resp.Body.Read(buffer)
-		if err == nil {
-			return true
-		}
-	}
-	return false
-}