public static bool TryUpload(string url, IEnumerable <HttpPostValue> blobs, HttpClientOptions options, HttpClientResponse response)
{
if (options == null || response == null)
{
return(false);
}
response.AsynchronousMode = false;
return(HttpClient.InternalTryUpload(url, blobs, options, response, null));
}
public static bool TryDownload(string url, HttpClientOptions options, HttpClientResponse response)
{
if (options == null || response == null)
{
return(false);
}
response.AsynchronousMode = false;
return(HttpClient.InternalTryDownload(url, options, response, null));
}
public static bool TryDownloadAsync(string url, HttpClientOptions options, HttpClientResponse response, HttpClientAsyncCallback callback)
{
if (options == null || response == null)
{
return(false);
}
response.AsynchronousMode = true;
return(HttpClient.InternalTryDownload(url, options, response, callback));
}
private static HttpWebRequest Create(string url, HttpClientOptions options)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.CookieContainer = options.CookieContainer;
request.Referer = string.IsNullOrEmpty(options.Referer) ? url : options.Referer;
request.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8";
request.KeepAlive = true;
request.UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.117 Safari/537.36";
request.Headers.Add("Accept-Encoding: gzip, deflate");
request.Headers.Add("DNT: 1");
request.Headers.Add("Upgrade-Insecure-Requests: 1");
request.Headers.Add("Accept-Language: zh-cn,zh;q=0.8,en-us;q=0.5,en;q=0.3");
request.CachePolicy = options.CachePolicy;
request.AllowAutoRedirect = options.AllowAutoRedirect;
request.Proxy = options.Proxy;
request.Referer = options.Referer;
request.Timeout = options.Timeout;
request.MaximumAutomaticRedirections = options.MaximumAutomaticRedirections;
request.AutomaticDecompression = options.AutomaticDecompression;
int[] range = options.Range;
if (range != null && range.Length > 0)
{
if (range.Length > 1)
{
request.AddRange(range[0], range[1]);
}
else
{
request.AddRange(range[0]);
}
}
NameValueCollection collection = options.Headers;
if (collection != null)
{
WebHeaderCollection headers = request.Headers;
foreach (string key in collection.AllKeys)
{
headers.Add(collection.Get(key));
}
}
return(request);
}
private static bool InternalTryUpload(string url, IEnumerable <HttpPostValue> blobs, HttpClientOptions options, HttpClientResponse response, HttpClientAsyncCallback callback)
{
if (options == null || response == null)
{
return(false);
}
HttpWebRequest request = null;
bool success = false;
try
{
request = HttpClient.Create(url, options);
ParameterizedThreadStart copyto = delegate(object state)
{
HttpWebResponse wr = null;
Stream rs = null;
try
{
if (!HttpClient.PreparationUpload(request, blobs))
{
callback?.Invoke(HttpClientError.UnableToUploadBLOB, null, -1);
}
else
{
using (wr = (HttpWebResponse)request.GetResponse())
{
HttpClient.Fill(wr, response);
using (rs = wr.GetResponseStream())
{
Func <byte[], int, bool> callbackt = null;
if (callback != null)
{
callbackt = (buffer, len) =>
{
HttpClientError error = HttpClientError.Success;
if (len < 0)
{
error = HttpClientError.ReadStreamInterruption;
}
return(callback(error, buffer, len));
};
}
success = HttpClient.CopyTo(rs, response, callbackt);
}
}
}
request.Abort();
}
catch (Exception)
{
if (wr != null && rs == null)
{
callback?.Invoke(HttpClientError.UnableToSendRequest, null, -1);
}
else if (rs != null)
{
callback?.Invoke(HttpClientError.UnableToGetResponseStream, null, -1);
}
else if (wr == null)
{
callback?.Invoke(HttpClientError.UnableOpenURL, null, -1);
}
if (rs != null)
{
rs.Close();
}
if (wr != null)
{
wr.Close();
}
if (request != null)
{
request.Abort();
}
}
};
if (!response.AsynchronousMode)
{
copyto(response);
}
else
{
(new Thread(copyto)
{
IsBackground = true, Priority = ThreadPriority.Lowest
}).Start(response);
}
return(success);
}
catch (Exception)
{
if (request != null)
{
request.Abort();
}
return(false);
}
}
