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-rw-r--r--MediaBrowser.Common.Implementations/HttpClientManager/HttpClientManager.cs936
1 files changed, 0 insertions, 936 deletions
diff --git a/MediaBrowser.Common.Implementations/HttpClientManager/HttpClientManager.cs b/MediaBrowser.Common.Implementations/HttpClientManager/HttpClientManager.cs
deleted file mode 100644
index b18178ead..000000000
--- a/MediaBrowser.Common.Implementations/HttpClientManager/HttpClientManager.cs
+++ /dev/null
@@ -1,936 +0,0 @@
-using System.Net.Sockets;
-using MediaBrowser.Common.Configuration;
-using MediaBrowser.Common.Extensions;
-using MediaBrowser.Common.IO;
-using MediaBrowser.Common.Net;
-using MediaBrowser.Model.Logging;
-using MediaBrowser.Model.Net;
-using System;
-using System.Collections.Concurrent;
-using System.Collections.Generic;
-using System.Collections.Specialized;
-using System.Globalization;
-using System.IO;
-using System.Linq;
-using System.Net;
-using System.Net.Cache;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
-using MediaBrowser.Model.IO;
-using MediaBrowser.Model.IO;
-
-namespace MediaBrowser.Common.Implementations.HttpClientManager
-{
- /// <summary>
- /// Class HttpClientManager
- /// </summary>
- public class HttpClientManager : IHttpClient
- {
- /// <summary>
- /// When one request to a host times out, we'll ban all other requests for this period of time, to prevent scans from stalling
- /// </summary>
- private const int TimeoutSeconds = 30;
-
- /// <summary>
- /// The _logger
- /// </summary>
- private readonly ILogger _logger;
-
- /// <summary>
- /// The _app paths
- /// </summary>
- private readonly IApplicationPaths _appPaths;
-
- private readonly IFileSystem _fileSystem;
- private readonly IMemoryStreamProvider _memoryStreamProvider;
-
- /// <summary>
- /// Initializes a new instance of the <see cref="HttpClientManager" /> class.
- /// </summary>
- /// <param name="appPaths">The app paths.</param>
- /// <param name="logger">The logger.</param>
- /// <param name="fileSystem">The file system.</param>
- /// <exception cref="System.ArgumentNullException">appPaths
- /// or
- /// logger</exception>
- public HttpClientManager(IApplicationPaths appPaths, ILogger logger, IFileSystem fileSystem, IMemoryStreamProvider memoryStreamProvider)
- {
- if (appPaths == null)
- {
- throw new ArgumentNullException("appPaths");
- }
- if (logger == null)
- {
- throw new ArgumentNullException("logger");
- }
-
- _logger = logger;
- _fileSystem = fileSystem;
- _memoryStreamProvider = memoryStreamProvider;
- _appPaths = appPaths;
-
- // http://stackoverflow.com/questions/566437/http-post-returns-the-error-417-expectation-failed-c
- ServicePointManager.Expect100Continue = false;
-
- // Trakt requests sometimes fail without this
- ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3 | SecurityProtocolType.Tls;
- }
-
- /// <summary>
- /// Holds a dictionary of http clients by host. Use GetHttpClient(host) to retrieve or create a client for web requests.
- /// DON'T dispose it after use.
- /// </summary>
- /// <value>The HTTP clients.</value>
- private readonly ConcurrentDictionary<string, HttpClientInfo> _httpClients = new ConcurrentDictionary<string, HttpClientInfo>();
-
- /// <summary>
- /// Gets
- /// </summary>
- /// <param name="host">The host.</param>
- /// <param name="enableHttpCompression">if set to <c>true</c> [enable HTTP compression].</param>
- /// <returns>HttpClient.</returns>
- /// <exception cref="System.ArgumentNullException">host</exception>
- private HttpClientInfo GetHttpClient(string host, bool enableHttpCompression)
- {
- if (string.IsNullOrEmpty(host))
- {
- throw new ArgumentNullException("host");
- }
-
- HttpClientInfo client;
-
- var key = host + enableHttpCompression;
-
- if (!_httpClients.TryGetValue(key, out client))
- {
- client = new HttpClientInfo();
-
- _httpClients.TryAdd(key, client);
- }
-
- return client;
- }
-
- private WebRequest CreateWebRequest(string url)
- {
- try
- {
- return WebRequest.Create(url);
- }
- catch (NotSupportedException)
- {
- //Webrequest creation does fail on MONO randomly when using WebRequest.Create
- //the issue occurs in the GetCreator method here: http://www.oschina.net/code/explore/mono-2.8.1/mcs/class/System/System.Net/WebRequest.cs
-
- var type = Type.GetType("System.Net.HttpRequestCreator, System, Version=4.0.0.0,Culture=neutral, PublicKeyToken=b77a5c561934e089");
- var creator = Activator.CreateInstance(type, nonPublic: true) as IWebRequestCreate;
- return creator.Create(new Uri(url)) as HttpWebRequest;
- }
- }
-
- private void AddIpv4Option(HttpWebRequest request, HttpRequestOptions options)
- {
- request.ServicePoint.BindIPEndPointDelegate = (servicePount, remoteEndPoint, retryCount) =>
- {
- if (remoteEndPoint.AddressFamily == AddressFamily.InterNetwork)
- {
- return new IPEndPoint(IPAddress.Any, 0);
- }
- throw new InvalidOperationException("no IPv4 address");
- };
- }
-
- private WebRequest GetRequest(HttpRequestOptions options, string method)
- {
- var url = options.Url;
-
- var uriAddress = new Uri(url);
- var userInfo = uriAddress.UserInfo;
- if (!string.IsNullOrWhiteSpace(userInfo))
- {
- _logger.Info("Found userInfo in url: {0} ... url: {1}", userInfo, url);
- url = url.Replace(userInfo + "@", string.Empty);
- }
-
- var request = CreateWebRequest(url);
- var httpWebRequest = request as HttpWebRequest;
-
- if (httpWebRequest != null)
- {
- if (options.PreferIpv4)
- {
- AddIpv4Option(httpWebRequest, options);
- }
-
- AddRequestHeaders(httpWebRequest, options);
-
- httpWebRequest.AutomaticDecompression = options.EnableHttpCompression ?
- (options.DecompressionMethod ?? DecompressionMethods.Deflate) :
- DecompressionMethods.None;
- }
-
- request.CachePolicy = new RequestCachePolicy(RequestCacheLevel.BypassCache);
-
- if (httpWebRequest != null)
- {
- if (options.EnableKeepAlive)
- {
- httpWebRequest.KeepAlive = true;
- }
- }
-
- request.Method = method;
- request.Timeout = options.TimeoutMs;
-
- if (httpWebRequest != null)
- {
- if (!string.IsNullOrEmpty(options.Host))
- {
- httpWebRequest.Host = options.Host;
- }
-
- if (!string.IsNullOrEmpty(options.Referer))
- {
- httpWebRequest.Referer = options.Referer;
- }
- }
-
- if (!string.IsNullOrWhiteSpace(userInfo))
- {
- var parts = userInfo.Split(':');
- if (parts.Length == 2)
- {
- request.Credentials = GetCredential(url, parts[0], parts[1]);
- request.PreAuthenticate = true;
- }
- }
-
- return request;
- }
-
- private CredentialCache GetCredential(string url, string username, string password)
- {
- //ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;
- CredentialCache credentialCache = new CredentialCache();
- credentialCache.Add(new Uri(url), "Basic", new NetworkCredential(username, password));
- return credentialCache;
- }
-
- private void AddRequestHeaders(HttpWebRequest request, HttpRequestOptions options)
- {
- foreach (var header in options.RequestHeaders.ToList())
- {
- if (string.Equals(header.Key, "Accept", StringComparison.OrdinalIgnoreCase))
- {
- request.Accept = header.Value;
- }
- else if (string.Equals(header.Key, "User-Agent", StringComparison.OrdinalIgnoreCase))
- {
- request.UserAgent = header.Value;
- }
- else
- {
- request.Headers.Set(header.Key, header.Value);
- }
- }
- }
-
- /// <summary>
- /// Gets the response internal.
- /// </summary>
- /// <param name="options">The options.</param>
- /// <returns>Task{HttpResponseInfo}.</returns>
- public Task<HttpResponseInfo> GetResponse(HttpRequestOptions options)
- {
- return SendAsync(options, "GET");
- }
-
- /// <summary>
- /// Performs a GET request and returns the resulting stream
- /// </summary>
- /// <param name="options">The options.</param>
- /// <returns>Task{Stream}.</returns>
- public async Task<Stream> Get(HttpRequestOptions options)
- {
- var response = await GetResponse(options).ConfigureAwait(false);
-
- return response.Content;
- }
-
- /// <summary>
- /// Performs a GET request and returns the resulting stream
- /// </summary>
- /// <param name="url">The URL.</param>
- /// <param name="resourcePool">The resource pool.</param>
- /// <param name="cancellationToken">The cancellation token.</param>
- /// <returns>Task{Stream}.</returns>
- public Task<Stream> Get(string url, SemaphoreSlim resourcePool, CancellationToken cancellationToken)
- {
- return Get(new HttpRequestOptions
- {
- Url = url,
- ResourcePool = resourcePool,
- CancellationToken = cancellationToken,
- BufferContent = resourcePool != null
- });
- }
-
- /// <summary>
- /// Gets the specified URL.
- /// </summary>
- /// <param name="url">The URL.</param>
- /// <param name="cancellationToken">The cancellation token.</param>
- /// <returns>Task{Stream}.</returns>
- public Task<Stream> Get(string url, CancellationToken cancellationToken)
- {
- return Get(url, null, cancellationToken);
- }
-
- /// <summary>
- /// send as an asynchronous operation.
- /// </summary>
- /// <param name="options">The options.</param>
- /// <param name="httpMethod">The HTTP method.</param>
- /// <returns>Task{HttpResponseInfo}.</returns>
- /// <exception cref="HttpException">
- /// </exception>
- public async Task<HttpResponseInfo> SendAsync(HttpRequestOptions options, string httpMethod)
- {
- if (options.CacheMode == CacheMode.None)
- {
- return await SendAsyncInternal(options, httpMethod).ConfigureAwait(false);
- }
-
- var url = options.Url;
- var urlHash = url.ToLower().GetMD5().ToString("N");
-
- var responseCachePath = Path.Combine(_appPaths.CachePath, "httpclient", urlHash);
-
- var response = await GetCachedResponse(responseCachePath, options.CacheLength, url).ConfigureAwait(false);
- if (response != null)
- {
- return response;
- }
-
- response = await SendAsyncInternal(options, httpMethod).ConfigureAwait(false);
-
- if (response.StatusCode == HttpStatusCode.OK)
- {
- await CacheResponse(response, responseCachePath).ConfigureAwait(false);
- }
-
- return response;
- }
-
- private async Task<HttpResponseInfo> GetCachedResponse(string responseCachePath, TimeSpan cacheLength, string url)
- {
- _logger.Info("Checking for cache file {0}", responseCachePath);
-
- try
- {
- if (_fileSystem.GetLastWriteTimeUtc(responseCachePath).Add(cacheLength) > DateTime.UtcNow)
- {
- using (var stream = _fileSystem.GetFileStream(responseCachePath, FileOpenMode.Open, FileAccessMode.Read, FileShareMode.Read, true))
- {
- var memoryStream = _memoryStreamProvider.CreateNew();
-
- await stream.CopyToAsync(memoryStream).ConfigureAwait(false);
- memoryStream.Position = 0;
-
- return new HttpResponseInfo
- {
- ResponseUrl = url,
- Content = memoryStream,
- StatusCode = HttpStatusCode.OK,
- ContentLength = memoryStream.Length
- };
- }
- }
- }
- catch (FileNotFoundException)
- {
-
- }
- catch (DirectoryNotFoundException)
- {
-
- }
-
- return null;
- }
-
- private async Task CacheResponse(HttpResponseInfo response, string responseCachePath)
- {
- _fileSystem.CreateDirectory(Path.GetDirectoryName(responseCachePath));
-
- using (var responseStream = response.Content)
- {
- var memoryStream = _memoryStreamProvider.CreateNew();
- await responseStream.CopyToAsync(memoryStream).ConfigureAwait(false);
- memoryStream.Position = 0;
-
- using (var fileStream = _fileSystem.GetFileStream(responseCachePath, FileOpenMode.Create, FileAccessMode.Write, FileShareMode.None, true))
- {
- await memoryStream.CopyToAsync(fileStream).ConfigureAwait(false);
-
- memoryStream.Position = 0;
- response.Content = memoryStream;
- }
- }
- }
-
- private async Task<HttpResponseInfo> SendAsyncInternal(HttpRequestOptions options, string httpMethod)
- {
- ValidateParams(options);
-
- options.CancellationToken.ThrowIfCancellationRequested();
-
- var client = GetHttpClient(GetHostFromUrl(options.Url), options.EnableHttpCompression);
-
- if ((DateTime.UtcNow - client.LastTimeout).TotalSeconds < TimeoutSeconds)
- {
- throw new HttpException(string.Format("Cancelling connection to {0} due to a previous timeout.", options.Url))
- {
- IsTimedOut = true
- };
- }
-
- var httpWebRequest = GetRequest(options, httpMethod);
-
- if (options.RequestContentBytes != null ||
- !string.IsNullOrEmpty(options.RequestContent) ||
- string.Equals(httpMethod, "post", StringComparison.OrdinalIgnoreCase))
- {
- var bytes = options.RequestContentBytes ??
- Encoding.UTF8.GetBytes(options.RequestContent ?? string.Empty);
-
- httpWebRequest.ContentType = options.RequestContentType ?? "application/x-www-form-urlencoded";
-
- httpWebRequest.ContentLength = bytes.Length;
- httpWebRequest.GetRequestStream().Write(bytes, 0, bytes.Length);
- }
-
- if (options.ResourcePool != null)
- {
- await options.ResourcePool.WaitAsync(options.CancellationToken).ConfigureAwait(false);
- }
-
- if ((DateTime.UtcNow - client.LastTimeout).TotalSeconds < TimeoutSeconds)
- {
- if (options.ResourcePool != null)
- {
- options.ResourcePool.Release();
- }
-
- throw new HttpException(string.Format("Connection to {0} timed out", options.Url)) { IsTimedOut = true };
- }
-
- if (options.LogRequest)
- {
- _logger.Info("HttpClientManager {0}: {1}", httpMethod.ToUpper(), options.Url);
- }
-
- try
- {
- options.CancellationToken.ThrowIfCancellationRequested();
-
- if (!options.BufferContent)
- {
- var response = await GetResponseAsync(httpWebRequest, TimeSpan.FromMilliseconds(options.TimeoutMs)).ConfigureAwait(false);
-
- var httpResponse = (HttpWebResponse)response;
-
- EnsureSuccessStatusCode(client, httpResponse, options);
-
- options.CancellationToken.ThrowIfCancellationRequested();
-
- return GetResponseInfo(httpResponse, httpResponse.GetResponseStream(), GetContentLength(httpResponse), httpResponse);
- }
-
- using (var response = await GetResponseAsync(httpWebRequest, TimeSpan.FromMilliseconds(options.TimeoutMs)).ConfigureAwait(false))
- {
- var httpResponse = (HttpWebResponse)response;
-
- EnsureSuccessStatusCode(client, httpResponse, options);
-
- options.CancellationToken.ThrowIfCancellationRequested();
-
- using (var stream = httpResponse.GetResponseStream())
- {
- var memoryStream = _memoryStreamProvider.CreateNew();
-
- await stream.CopyToAsync(memoryStream).ConfigureAwait(false);
-
- memoryStream.Position = 0;
-
- return GetResponseInfo(httpResponse, memoryStream, memoryStream.Length, null);
- }
- }
- }
- catch (OperationCanceledException ex)
- {
- throw GetCancellationException(options, client, options.CancellationToken, ex);
- }
- catch (Exception ex)
- {
- throw GetException(ex, options, client);
- }
- finally
- {
- if (options.ResourcePool != null)
- {
- options.ResourcePool.Release();
- }
- }
- }
-
- private HttpResponseInfo GetResponseInfo(HttpWebResponse httpResponse, Stream content, long? contentLength, IDisposable disposable)
- {
- var responseInfo = new HttpResponseInfo(disposable)
- {
- Content = content,
-
- StatusCode = httpResponse.StatusCode,
-
- ContentType = httpResponse.ContentType,
-
- ContentLength = contentLength,
-
- ResponseUrl = httpResponse.ResponseUri.ToString()
- };
-
- if (httpResponse.Headers != null)
- {
- SetHeaders(httpResponse.Headers, responseInfo);
- }
-
- return responseInfo;
- }
-
- private HttpResponseInfo GetResponseInfo(HttpWebResponse httpResponse, string tempFile, long? contentLength)
- {
- var responseInfo = new HttpResponseInfo
- {
- TempFilePath = tempFile,
-
- StatusCode = httpResponse.StatusCode,
-
- ContentType = httpResponse.ContentType,
-
- ContentLength = contentLength
- };
-
- if (httpResponse.Headers != null)
- {
- SetHeaders(httpResponse.Headers, responseInfo);
- }
-
- return responseInfo;
- }
-
- private void SetHeaders(WebHeaderCollection headers, HttpResponseInfo responseInfo)
- {
- foreach (var key in headers.AllKeys)
- {
- responseInfo.Headers[key] = headers[key];
- }
- }
-
- public Task<HttpResponseInfo> Post(HttpRequestOptions options)
- {
- return SendAsync(options, "POST");
- }
-
- /// <summary>
- /// Performs a POST request
- /// </summary>
- /// <param name="options">The options.</param>
- /// <param name="postData">Params to add to the POST data.</param>
- /// <returns>stream on success, null on failure</returns>
- public async Task<Stream> Post(HttpRequestOptions options, Dictionary<string, string> postData)
- {
- options.SetPostData(postData);
-
- var response = await Post(options).ConfigureAwait(false);
-
- return response.Content;
- }
-
- /// <summary>
- /// Performs a POST request
- /// </summary>
- /// <param name="url">The URL.</param>
- /// <param name="postData">Params to add to the POST data.</param>
- /// <param name="resourcePool">The resource pool.</param>
- /// <param name="cancellationToken">The cancellation token.</param>
- /// <returns>stream on success, null on failure</returns>
- public Task<Stream> Post(string url, Dictionary<string, string> postData, SemaphoreSlim resourcePool, CancellationToken cancellationToken)
- {
- return Post(new HttpRequestOptions
- {
- Url = url,
- ResourcePool = resourcePool,
- CancellationToken = cancellationToken,
- BufferContent = resourcePool != null
-
- }, postData);
- }
-
- /// <summary>
- /// Downloads the contents of a given url into a temporary location
- /// </summary>
- /// <param name="options">The options.</param>
- /// <returns>Task{System.String}.</returns>
- public async Task<string> GetTempFile(HttpRequestOptions options)
- {
- var response = await GetTempFileResponse(options).ConfigureAwait(false);
-
- return response.TempFilePath;
- }
-
- public async Task<HttpResponseInfo> GetTempFileResponse(HttpRequestOptions options)
- {
- ValidateParams(options);
-
- _fileSystem.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");
-
- 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);
- }
-
- var client = GetHttpClient(GetHostFromUrl(options.Url), options.EnableHttpCompression);
-
- try
- {
- options.CancellationToken.ThrowIfCancellationRequested();
-
- using (var response = await httpWebRequest.GetResponseAsync().ConfigureAwait(false))
- {
- var httpResponse = (HttpWebResponse)response;
-
- EnsureSuccessStatusCode(client, 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, FileOpenMode.Create, FileAccessMode.Write, FileShareMode.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, FileOpenMode.Create, FileAccessMode.Write, FileShareMode.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, client);
- }
- finally
- {
- if (options.ResourcePool != null)
- {
- options.ResourcePool.Release();
- }
- }
- }
-
- private long? GetContentLength(HttpWebResponse response)
- {
- var length = response.ContentLength;
-
- if (length == 0)
- {
- return null;
- }
-
- return length;
- }
-
- protected static readonly CultureInfo UsCulture = new CultureInfo("en-US");
-
- private Exception GetException(Exception ex, HttpRequestOptions options, HttpClientInfo client)
- {
- if (ex is HttpException)
- {
- return ex;
- }
-
- var webException = ex as WebException
- ?? ex.InnerException as WebException;
-
- if (webException != null)
- {
- if (options.LogErrors)
- {
- _logger.ErrorException("Error getting response from " + options.Url, ex);
- }
-
- var exception = new HttpException(ex.Message, ex);
-
- var response = webException.Response as HttpWebResponse;
- if (response != null)
- {
- exception.StatusCode = response.StatusCode;
-
- if ((int)response.StatusCode == 429)
- {
- client.LastTimeout = DateTime.UtcNow;
- }
- }
-
- return exception;
- }
-
- var operationCanceledException = ex as OperationCanceledException
- ?? ex.InnerException as OperationCanceledException;
-
- if (operationCanceledException != null)
- {
- return GetCancellationException(options, client, options.CancellationToken, operationCanceledException);
- }
-
- if (options.LogErrors)
- {
- _logger.ErrorException("Error getting response from " + options.Url, ex);
- }
-
- return ex;
- }
-
- private void DeleteTempFile(string file)
- {
- try
- {
- _fileSystem.DeleteFile(file);
- }
- catch (IOException)
- {
- // Might not have been created at all. No need to worry.
- }
- }
-
- private void ValidateParams(HttpRequestOptions options)
- {
- if (string.IsNullOrEmpty(options.Url))
- {
- throw new ArgumentNullException("options");
- }
- }
-
- /// <summary>
- /// Gets the host from URL.
- /// </summary>
- /// <param name="url">The URL.</param>
- /// <returns>System.String.</returns>
- private string GetHostFromUrl(string url)
- {
- var index = url.IndexOf("://", StringComparison.OrdinalIgnoreCase);
-
- if (index != -1)
- {
- url = url.Substring(index + 3);
- var host = url.Split(new[] { '/' }, StringSplitOptions.RemoveEmptyEntries).FirstOrDefault();
-
- if (!string.IsNullOrWhiteSpace(host))
- {
- return host;
- }
- }
-
- return url;
- }
-
- /// <summary>
- /// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
- /// </summary>
- public void Dispose()
- {
- Dispose(true);
- GC.SuppressFinalize(this);
- }
-
- /// <summary>
- /// Releases unmanaged and - optionally - managed resources.
- /// </summary>
- /// <param name="dispose"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
- protected virtual void Dispose(bool dispose)
- {
- if (dispose)
- {
- _httpClients.Clear();
- }
- }
-
- /// <summary>
- /// Throws the cancellation exception.
- /// </summary>
- /// <param name="options">The options.</param>
- /// <param name="client">The client.</param>
- /// <param name="cancellationToken">The cancellation token.</param>
- /// <param name="exception">The exception.</param>
- /// <returns>Exception.</returns>
- private Exception GetCancellationException(HttpRequestOptions options, HttpClientInfo client, CancellationToken cancellationToken, OperationCanceledException exception)
- {
- // If the HttpClient's timeout is reached, it will cancel the Task internally
- if (!cancellationToken.IsCancellationRequested)
- {
- var msg = string.Format("Connection to {0} timed out", options.Url);
-
- if (options.LogErrors)
- {
- _logger.Error(msg);
- }
-
- client.LastTimeout = DateTime.UtcNow;
-
- // Throw an HttpException so that the caller doesn't think it was cancelled by user code
- return new HttpException(msg, exception)
- {
- IsTimedOut = true
- };
- }
-
- return exception;
- }
-
- private void EnsureSuccessStatusCode(HttpClientInfo client, HttpWebResponse response, HttpRequestOptions options)
- {
- var statusCode = response.StatusCode;
-
- var isSuccessful = statusCode >= HttpStatusCode.OK && statusCode <= (HttpStatusCode)299;
-
- if (!isSuccessful)
- {
- if (options.LogErrorResponseBody)
- {
- try
- {
- using (var stream = response.GetResponseStream())
- {
- if (stream != null)
- {
- using (var reader = new StreamReader(stream))
- {
- var msg = reader.ReadToEnd();
-
- _logger.Error(msg);
- }
- }
- }
- }
- catch
- {
-
- }
- }
- throw new HttpException(response.StatusDescription)
- {
- StatusCode = response.StatusCode
- };
- }
- }
-
- /// <summary>
- /// Posts the specified URL.
- /// </summary>
- /// <param name="url">The URL.</param>
- /// <param name="postData">The post data.</param>
- /// <param name="cancellationToken">The cancellation token.</param>
- /// <returns>Task{Stream}.</returns>
- public Task<Stream> Post(string url, Dictionary<string, string> postData, CancellationToken cancellationToken)
- {
- return Post(url, postData, null, cancellationToken);
- }
-
- private Task<WebResponse> GetResponseAsync(WebRequest request, TimeSpan timeout)
- {
- var taskCompletion = new TaskCompletionSource<WebResponse>();
-
- Task<WebResponse> asyncTask = Task.Factory.FromAsync<WebResponse>(request.BeginGetResponse, request.EndGetResponse, null);
-
- ThreadPool.RegisterWaitForSingleObject((asyncTask as IAsyncResult).AsyncWaitHandle, TimeoutCallback, request, timeout, true);
- var callback = new TaskCallback { taskCompletion = taskCompletion };
- asyncTask.ContinueWith(callback.OnSuccess, TaskContinuationOptions.NotOnFaulted);
-
- // Handle errors
- asyncTask.ContinueWith(callback.OnError, TaskContinuationOptions.OnlyOnFaulted);
-
- return taskCompletion.Task;
- }
-
- private static void TimeoutCallback(object state, bool timedOut)
- {
- if (timedOut)
- {
- WebRequest request = (WebRequest)state;
- if (state != null)
- {
- request.Abort();
- }
- }
- }
-
- private class TaskCallback
- {
- public TaskCompletionSource<WebResponse> taskCompletion;
-
- public void OnSuccess(Task<WebResponse> task)
- {
- taskCompletion.TrySetResult(task.Result);
- }
-
- public void OnError(Task<WebResponse> task)
- {
- if (task.Exception != null)
- {
- taskCompletion.TrySetException(task.Exception);
- }
- else
- {
- taskCompletion.TrySetException(new List<Exception>());
- }
- }
- }
- }
-}
generated by cgit v1.2.3 (git 2.46.0) at 2025-12-06 21:26:21 +0000