question

I understand your suggestion of the best way to manage the content using file versioning. However, this also leads to a higher maintenance cost. For us, an image (or other asset) will be referenced by multiple places within multiple scripts and content files. If we need to update an image to correct a simple issue like cropping or coloring we do not want to introduce additional risk by updating every instance across all content files. There are more elaborate ways, like asset mapping of some type and we may get to that in the near future. But the simplest solution is to just update the file and let the client grab the latest version.

Here is the testing code that I am using to get the HEAD data. If I leave ThruCDN commented out, all is good. If I un-comment that line then I get the 403 error.

            var request = new GetContentDownloadUrlRequest
            {
                HttpMethod = "HEAD",
                Key = remotePath,
                //ThruCDN = false
            };


            PlayFabClientAPI.GetContentDownloadUrl(request, r =>
            {
                Debug.Log(r.URL);
                var www = new WWW(r.URL);
                while (!www.isDone)
                {
                }


                foreach (var header in www.responseHeaders)
                {
                    Debug.Log(header.Key + ", " + header.Value);
                }


            }, e =>
            {
                m_inProcess.Remove(assetName);
                PlayFabErrorHandler.HandlePlayFabError(e);
            });

Thanks for your reply, that makes a lot of sense.

I have done some more testing and have found that if I use a standard .Net HttpWebRequest:

                    var webrequest = (HttpWebRequest)WebRequest.Create(r.URL);
                    webrequest.Method = "HEAD";
                    var response = webrequest.GetResponse()

When ThruCDN=false it fails with the following error:

System.Net.WebException: Error getting response stream (Write: The authentication or decryption has failed.)

This appears to be an issue with the underlying Mono implementations handling of certificates.

However, when ThruCDN=true then it will succeed and I can get the headers properly.

I also discovered the UnityHttpRequest class that can be used instead of the WWW class.

Using the following code I am able to make successful calls with ThruCDN set to both true and false:

 		var uReq = UnityWebRequest.Head(r.URL);
                uReq.Send();
                while (!uReq.isDone) { }

I believe that using UnityHttpRequest I should be able to accomplish what I need to.

Thanks.

I am getting a [403 Forbidden] error too.
ThruCDN is not set (left as default). My code is exactly the same as @chadriddle here.

Is there another else we can try please?

Thanks.

@Brendan details here:

TitleID: 818B

var request =new GetContentDownloadUrlRequest
{Key= filePath};