internal HttpResponse(HttpResponseMessage resp, byte[] body)
{
StatusCode = resp.StatusCode;
ReasonPhrase = resp.ReasonPhrase;
Headers = resp.Headers;
RequestMessage = resp.RequestMessage;
IsSuccessStatusCode = resp.IsSuccessStatusCode;
RateLimit = RateLimitInfo.FromHttp(resp);
_body = body;
}
/// <summary>
/// </summary>
/// <param name="resp"></param>
public RateLimitExceededException(HttpResponseMessage resp)
{
RateLimitInfo?info = RateLimitInfo.FromHttp(resp);
if (info == null)
{
throw new Exception("Could not parse rate limit info");
}
else
{
RateLimit = (RateLimitInfo)info;
}
}
/// <summary>
/// </summary>
/// <param name="info"></param>
public RateLimitExceededException(RateLimitInfo info)
{
RateLimit = info;
}
internal async Task <HttpResponse> GetAsync(string url, CancellationToken token, IProgress <double> progress = null)
{
HttpResponseMessage resp = await Client.GetAsync(url, HttpCompletionOption.ResponseHeadersRead, token).ConfigureAwait(false);
if ((int)resp.StatusCode == 429)
{
var ex = new RateLimitExceededException(resp);
if (Options.HandleRateLimits == false)
{
throw ex;
}
RateLimitInfo info = ex.RateLimit;
TimeSpan diff = info.Reset - DateTime.Now;
int millis = (int)diff.TotalMilliseconds;
if (millis > 0)
{
await Task.Delay(millis).ConfigureAwait(false);
}
return(await GetAsync(url, token, progress).ConfigureAwait(false));
}
if (token.IsCancellationRequested)
{
throw new TaskCanceledException();
}
MemoryStream ms = new MemoryStream();
Stream s = await resp.Content.ReadAsStreamAsync().ConfigureAwait(false);
byte[] buffer = new byte[1 << 13];
int bytesRead;
long?contentLength = resp.Content.Headers.ContentLength;
long totalRead = 0;
progress?.Report(0);
while ((bytesRead = await s.ReadAsync(buffer, 0, buffer.Length).ConfigureAwait(false)) > 0)
{
if (token.IsCancellationRequested)
{
throw new TaskCanceledException();
}
if (contentLength != null)
{
double prog = (double)totalRead / (double)contentLength;
progress?.Report(prog);
}
await ms.WriteAsync(buffer, 0, bytesRead).ConfigureAwait(false);
totalRead += bytesRead;
}
progress?.Report(1);
byte[] bytes = ms.ToArray();
return(new HttpResponse(resp, bytes));
}
