static HttpClientFactory()
{
Get = (() =>
{
var httpClientHandler = new HttpClientHandler();
if (httpClientHandler.SupportsAutomaticDecompression)
{
httpClientHandler.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
}
if (httpClientHandler.SupportsUseProxy())
{
httpClientHandler.UseProxy = true;
}
if (httpClientHandler.SupportsAllowAutoRedirect())
{
httpClientHandler.AllowAutoRedirect = true;
}
if (httpClientHandler.SupportsPreAuthenticate())
{
httpClientHandler.PreAuthenticate = true;
}
var httpClient = new HttpClient(httpClientHandler);
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/jsonp"));
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("text/html"));
return(httpClient);
});
}
public ProxyModule()
{
var httpClientHandler = new HttpClientHandler();
if (httpClientHandler.SupportsAutomaticDecompression)
{
httpClientHandler.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
}
if (httpClientHandler.SupportsUseProxy())
{
httpClientHandler.UseProxy = true;
}
if (httpClientHandler.SupportsAllowAutoRedirect())
{
httpClientHandler.AllowAutoRedirect = true;
}
if (httpClientHandler.SupportsPreAuthenticate())
{
httpClientHandler.PreAuthenticate = true;
}
var httpClient = new HttpClient(httpClientHandler);
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/jsonp"));
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("text/html"));
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("image/webp"));
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("image/*"));
Get["/proxy", true] = async(parameters, ctx) =>
{
var parsedUrl = ParseQueryString(Request.Query);
var requestForType = parsedUrl.Item1;
var url = parsedUrl.Item2;
var response = await httpClient.GetAsync(url);
response.EnsureSuccessStatusCode();
if (string.Equals(JsonFormat, requestForType, StringComparison.OrdinalIgnoreCase))
{
return(await response.Content.ReadAsStringAsync().ConfigureAwait(false));
}
Stream responseStream = await response.Content.ReadAsStreamAsync().ConfigureAwait(false);
return(Response.FromStream(responseStream, DefaultImageResponseContentType));
};
Post["/proxy", true] = async(parameters, ctx) =>
{
var parsedUrl = ParseQueryString(Request.Query);
var requestForType = parsedUrl.Item1;
var url = parsedUrl.Item2.Split('?').FirstOrDefault();
var parametersToSend = parsedUrl.Item3;
HttpContent content = null;
try
{
content = new FormUrlEncodedContent(parametersToSend);
}
catch (FormatException fex)
{
var tempContent = new MultipartFormDataContent();
foreach (var keyValuePair in parametersToSend)
{
tempContent.Add(new StringContent(keyValuePair.Value), keyValuePair.Key);
}
content = tempContent;
}
var response = await httpClient.PostAsync(url, content);
response.EnsureSuccessStatusCode();
if (string.Equals(JsonFormat, requestForType, StringComparison.OrdinalIgnoreCase))
{
return(await response.Content.ReadAsStringAsync().ConfigureAwait(false));
}
Stream responseStream = await response.Content.ReadAsStreamAsync().ConfigureAwait(false);
return(Response.FromStream(responseStream, DefaultImageResponseContentType));
};
}
async Task <IHttpTransferResult> _doDownload(DownloadQueueObject obj, IHttpTransferConfig downloadConfig)
{
// add support for Gzip decompression
HttpClient httpClient;
var httpHandler = new HttpClientHandler();
if (downloadConfig.Gzip)
{
if (httpHandler.SupportsAutomaticDecompression)
{
httpHandler.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
}
}
if (downloadConfig.AllowRedirect && httpHandler.SupportsAllowAutoRedirect())
{
httpHandler.AllowAutoRedirect = true;
}
else
{
httpHandler.AllowAutoRedirect = false;
}
httpClient = new HttpClient(httpHandler);
if (downloadConfig.Cookies != null)
{
var uri = new Uri(obj.Url);
var cookies = new CookieContainer();
httpHandler.CookieContainer = cookies;
foreach (var c in downloadConfig.Cookies)
{
cookies.Add(uri, new Cookie(c.Key, c.Value));
}
}
using (httpClient)
{
var method = HttpMethod.Get;
switch (obj.Verb)
{
case "GET":
method = HttpMethod.Get;
break;
case "POST":
method = HttpMethod.Post;
break;
case "PUT":
method = HttpMethod.Put;
break;
case "DELETE":
method = HttpMethod.Delete;
break;
}
using (var message = new HttpRequestMessage(method, obj.Url))
{
if (downloadConfig.Headers != null)
{
foreach (var item in downloadConfig.Headers)
{
message.Headers.Add(item.Key, item.Value);
}
}
// Accept-Encoding:
if (downloadConfig.AcceptEncoding != null)
{
//message.Headers.AcceptEncoding.Add(new StringWithQualityHeaderValue(""));
message.Headers.Add("Accept-Encoding", downloadConfig.AcceptEncoding);
}
// Accept:
if (!string.IsNullOrWhiteSpace(downloadConfig.Accept))
{
message.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue(downloadConfig.Accept));
}
if (!string.IsNullOrWhiteSpace(obj.Data))
{
var content = new StringContent(obj.Data, Encoding.UTF8,
downloadConfig.ContentEncoding ?? "application/json");
message.Content = content;
}
if (obj.ByteData != null)
{
var content = new ByteArrayContent(obj.ByteData, 0, obj.ByteData.Length);
message.Content = content;
}
if (downloadConfig.Auth != null && downloadConfig.AuthScheme != null)
{
message.Headers.Authorization = new AuthenticationHeaderValue(downloadConfig.AuthScheme,
downloadConfig.Auth);
}
if (downloadConfig.Timeout != 0)
{
httpClient.Timeout = TimeSpan.FromSeconds(downloadConfig.Timeout);
}
try
{
Debug.WriteLine("{0}: {1}", downloadConfig.Verb.ToLower() == "get" ? "Downloading": "Uploading", obj.Url);
using (var result = await httpClient.SendAsync(message))
{
Debug.WriteLine("Finished: {0}", obj.Url);
return(await _httpTransferService.GetResult(result, downloadConfig));
}
}
catch (HttpRequestException ex)
{
Debug.WriteLine("Warning - HttpRequestException encountered: {0}", ex.Message);
return(_httpTransferService.GetExceptionResult(ex,
"XamlingCore.Portable.Net.Downloaders.HttpClientDownloader", downloadConfig));
}
catch (Exception ex)
{
Debug.WriteLine("Warning - general HTTP exception encountered: {0}", ex.Message);
return(_httpTransferService.GetExceptionResult(ex,
"XamlingCore.Portable.Net.Downloaders.HttpClientDownloader", downloadConfig));
}
}
}
}