/// <summary>
/// Gets the temp file.
/// </summary>
/// <param name="options">The options.</param>
/// <param name="tempFile">The temp file.</param>
/// <param name="resumeCount">The resume count.</param>
/// <returns>Task{System.String}.</returns>
/// <exception cref="System.ArgumentNullException">progress</exception>
/// <exception cref="HttpException"></exception>
private async Task <string> GetTempFile(HttpRequestOptions options, string tempFile, int resumeCount)
{
ValidateParams(options.Url, options.CancellationToken);
if (options.Progress == null)
{
throw new ArgumentNullException("progress");
}
options.CancellationToken.ThrowIfCancellationRequested();
var message = new HttpRequestMessage(HttpMethod.Get, options.Url);
if (!string.IsNullOrEmpty(options.UserAgent))
{
message.Headers.Add("User-Agent", options.UserAgent);
}
if (options.ResourcePool != null)
{
await options.ResourcePool.WaitAsync(options.CancellationToken).ConfigureAwait(false);
}
options.Progress.Report(0);
_logger.Info("HttpClientManager.GetTempFile url: {0}, temp file: {1}", options.Url, tempFile);
try
{
options.CancellationToken.ThrowIfCancellationRequested();
using (var response = await GetHttpClient(GetHostFromUrl(options.Url)).SendAsync(message, HttpCompletionOption.ResponseHeadersRead, options.CancellationToken).ConfigureAwait(false))
{
EnsureSuccessStatusCode(response);
options.CancellationToken.ThrowIfCancellationRequested();
IEnumerable <string> lengthValues;
if (!response.Headers.TryGetValues("content-length", out lengthValues) &&
!response.Content.Headers.TryGetValues("content-length", out lengthValues))
{
// We're not able to track progress
using (var stream = await response.Content.ReadAsStreamAsync().ConfigureAwait(false))
{
using (var fs = new FileStream(tempFile, FileMode.Create, FileAccess.Write, FileShare.Read, StreamDefaults.DefaultFileStreamBufferSize, FileOptions.Asynchronous))
{
await stream.CopyToAsync(fs, StreamDefaults.DefaultCopyToBufferSize, options.CancellationToken).ConfigureAwait(false);
}
}
}
else
{
var length = long.Parse(string.Join(string.Empty, lengthValues.ToArray()));
using (var stream = ProgressStream.CreateReadProgressStream(await response.Content.ReadAsStreamAsync().ConfigureAwait(false), options.Progress.Report, length))
{
using (var fs = new FileStream(tempFile, FileMode.Create, FileAccess.Write, FileShare.Read, StreamDefaults.DefaultFileStreamBufferSize, FileOptions.Asynchronous))
{
await stream.CopyToAsync(fs, StreamDefaults.DefaultCopyToBufferSize, options.CancellationToken).ConfigureAwait(false);
}
}
}
options.Progress.Report(100);
options.CancellationToken.ThrowIfCancellationRequested();
}
}
catch (Exception ex)
{
HandleTempFileException(ex, options, tempFile);
}
finally
{
if (options.ResourcePool != null)
{
options.ResourcePool.Release();
}
}
return(tempFile);
}
public async Task <HttpResponseInfo> GetTempFileResponse(HttpRequestOptions options)
{
ValidateParams(options);
Directory.CreateDirectory(_appPaths.TempDirectory);
var tempFile = Path.Combine(_appPaths.TempDirectory, Guid.NewGuid() + ".tmp");
if (options.Progress == null)
{
throw new ArgumentNullException("progress");
}
options.CancellationToken.ThrowIfCancellationRequested();
var httpWebRequest = GetRequest(options, "GET", options.EnableHttpCompression);
if (options.ResourcePool != null)
{
await options.ResourcePool.WaitAsync(options.CancellationToken).ConfigureAwait(false);
}
options.Progress.Report(0);
if (options.LogRequest)
{
_logger.Info("HttpClientManager.GetTempFileResponse url: {0}", options.Url);
}
try
{
options.CancellationToken.ThrowIfCancellationRequested();
using (var response = await httpWebRequest.GetResponseAsync().ConfigureAwait(false))
{
var httpResponse = (HttpWebResponse)response;
EnsureSuccessStatusCode(httpResponse, options);
options.CancellationToken.ThrowIfCancellationRequested();
var contentLength = GetContentLength(httpResponse);
if (!contentLength.HasValue)
{
// We're not able to track progress
using (var stream = httpResponse.GetResponseStream())
{
using (var fs = _fileSystem.GetFileStream(tempFile, FileMode.Create, FileAccess.Write, FileShare.Read, true))
{
await stream.CopyToAsync(fs, StreamDefaults.DefaultCopyToBufferSize, options.CancellationToken).ConfigureAwait(false);
}
}
}
else
{
using (var stream = ProgressStream.CreateReadProgressStream(httpResponse.GetResponseStream(), options.Progress.Report, contentLength.Value))
{
using (var fs = _fileSystem.GetFileStream(tempFile, FileMode.Create, FileAccess.Write, FileShare.Read, true))
{
await stream.CopyToAsync(fs, StreamDefaults.DefaultCopyToBufferSize, options.CancellationToken).ConfigureAwait(false);
}
}
}
options.Progress.Report(100);
return(GetResponseInfo(httpResponse, tempFile, contentLength));
}
}
catch (Exception ex)
{
DeleteTempFile(tempFile);
throw GetException(ex, options);
}
finally
{
if (options.ResourcePool != null)
{
options.ResourcePool.Release();
}
}
}
public async Task <HttpResponseInfo> GetTempFileResponse(HttpRequestOptions options)
{
ValidateParams(options.Url, options.CancellationToken);
var tempFile = Path.Combine(_appPaths.TempDirectory, Guid.NewGuid() + ".tmp");
if (options.Progress == null)
{
throw new ArgumentNullException("progress");
}
options.CancellationToken.ThrowIfCancellationRequested();
if (options.ResourcePool != null)
{
await options.ResourcePool.WaitAsync(options.CancellationToken).ConfigureAwait(false);
}
options.Progress.Report(0);
_logger.Info("HttpClientManager.GetTempFile url: {0}, temp file: {1}", options.Url, tempFile);
try
{
options.CancellationToken.ThrowIfCancellationRequested();
using (var message = GetHttpRequestMessage(options))
{
using (var response = await GetHttpClient(GetHostFromUrl(options.Url), options.EnableHttpCompression).HttpClient.SendAsync(message, HttpCompletionOption.ResponseHeadersRead, options.CancellationToken).ConfigureAwait(false))
{
EnsureSuccessStatusCode(response);
options.CancellationToken.ThrowIfCancellationRequested();
var contentLength = GetContentLength(response);
if (!contentLength.HasValue)
{
// We're not able to track progress
using (var stream = await response.Content.ReadAsStreamAsync().ConfigureAwait(false))
{
using (var fs = _fileSystem.GetFileStream(tempFile, FileMode.Create, FileAccess.Write, FileShare.Read, true))
{
await stream.CopyToAsync(fs, StreamDefaults.DefaultCopyToBufferSize, options.CancellationToken).ConfigureAwait(false);
}
}
}
else
{
using (var stream = ProgressStream.CreateReadProgressStream(await response.Content.ReadAsStreamAsync().ConfigureAwait(false), options.Progress.Report, contentLength.Value))
{
using (var fs = _fileSystem.GetFileStream(tempFile, FileMode.Create, FileAccess.Write, FileShare.Read, true))
{
await stream.CopyToAsync(fs, StreamDefaults.DefaultCopyToBufferSize, options.CancellationToken).ConfigureAwait(false);
}
}
}
options.Progress.Report(100);
return(new HttpResponseInfo
{
TempFilePath = tempFile,
StatusCode = response.StatusCode,
ContentType = response.Content.Headers.ContentType.MediaType
});
}
}
}
catch (Exception ex)
{
throw GetTempFileException(ex, options, tempFile);
}
finally
{
if (options.ResourcePool != null)
{
options.ResourcePool.Release();
}
}
}