public async Task <Tuple <Stream, string> > DownAsync(string url, string referer, bool isReferer)
{
try
{
string fileName = "";
int count = 0;
while (count <= 3)
{
var client = _clientFactory.CreateClient("gzip");
if (referer.IsNotEmpty())
{
client.DefaultRequestHeaders.Add("referer", referer);
}
var responseMessage = await client.GetAsync(url);
if (responseMessage.StatusCode == HttpStatusCode.OK)
{
fileName = $"image.{MimeUtility.GetExtensionByMime(responseMessage.Content.Headers.ContentType.MediaType)}";
//fileName = Path.GetFileName(url);
var stream = await responseMessage.Content.ReadAsStreamAsync();
return(new Tuple <Stream, string>(stream, fileName));
}
count += 1;
}
return(null);
}
catch (Exception ex)
{
_logger.LogError(ex, "下载文件错误:" + url);
return(null);
}
}