IEnumerator Download(Request request, DiskCacheOperation handle)
{
request.Send ();
while (!request.isDone)
yield return new WaitForEndOfFrame ();
handle.isDone = true;
}
public DiskCacheOperation Fetch (Request request)
{
var handle = new DiskCacheOperation ();
handle.request = request;
StartCoroutine (Download (request, handle));
return handle;
}
private IEnumerator DownloadAndSave(Request request, string filename, DiskCacheOperation handle)
{
bool useCachedVersion = File.Exists(filename);
Action <Request> callback = request.completedCallback;
request.Send();
while (!request.isDone)
{
yield return(new WaitForEndOfFrame());
}
if (request.exception == null && request.response != null && request.response.status == 200)
{
string header = request.response.GetHeader("etag");
if (header != "")
{
File.WriteAllBytes(filename, request.response.bytes);
File.WriteAllText(filename + ".etag", header);
}
useCachedVersion = false;
}
if (useCachedVersion)
{
if (request.exception != null)
{
Debug.LogWarning("Using cached version due to exception:" + request.exception);
request.exception = null;
}
request.response.status = 304;
request.response.bytes = File.ReadAllBytes(filename);
request.isDone = true;
}
handle.isDone = true;
callback?.Invoke(request);
}
public DiskCacheOperation Fetch(Request request)
{
var handle = new DiskCacheOperation();
handle.request = request;
StartCoroutine(Download(request, handle));
return(handle);
}
IEnumerator Download(Request request, DiskCacheOperation handle)
{
request.Send();
while (!request.isDone)
{
yield return(new WaitForEndOfFrame());
}
handle.isDone = true;
}
public DiskCacheOperation Fetch(Request request)
{
string text = "";
using (MD5 mD = MD5.Create())
{
byte[] array = mD.ComputeHash(Encoding.ASCII.GetBytes(request.uri.ToString()));
foreach (byte b in array)
{
text += b.ToString("X2");
}
}
string text2 = Path.Combine(cachePath, text);
if (File.Exists(text2) && File.Exists(text2 + ".etag"))
{
request.SetHeader("If-None-Match", File.ReadAllText(text2 + ".etag"));
}
DiskCacheOperation diskCacheOperation = new DiskCacheOperation();
diskCacheOperation.request = request;
StartCoroutine(DownloadAndSave(request, text2, diskCacheOperation));
return(diskCacheOperation);
}
