//Used in request to url entered by user for image, returns just the content type header info
private IEnumerator transmit(UnityWebRequest request, ImageUrlCheck callback)
{
KXAPI.log("sending request to: " + request.url);
yield return(request.Send());
callback(request.GetResponseHeaders()["Content-Type"]);
}
//This differs from the other HTTP static methods in that is doesn't return anything and only fetches the HEADER info from the url
//It also uses a different method in the RequestHandler which doesn't deal with status codes and only returns the Content-Type into the callback.
//This is the one route which will make calls to other sites, but only to urls entered by the user for images
internal static void verify_image(string url, ImageUrlCheck callback)
{
HTTP http = new HTTP();
http.request = UnityWebRequest.Get(url);
http.request.method = "HEAD";
http.send(callback);
}
// private UnityWebRequest last_request = null;
// private RequestCallback last_callback = null;
// private KerbalXAPI api_instance = null;
// public void try_again(){
// send_request(api_instance, last_request, last_callback);
// }
//
// public bool can_retry(){
// return last_request != null;
// }
//Used to fetch Content-Type Header info for urls entered by user for an image (to check if image is an image)
internal void send_request(UnityWebRequest request, ImageUrlCheck callback)
{
StartCoroutine(transmit(request, callback));
}
//override for send when using ImageUrlCheck callback
internal void send(ImageUrlCheck callback)
{
RequestHandler.instance.send_request(request, callback);
}
