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@@ -1,936 +0,0 @@
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-using System.Net.Sockets;
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-using MediaBrowser.Common.Configuration;
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-using MediaBrowser.Common.Extensions;
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-using MediaBrowser.Common.IO;
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-using MediaBrowser.Common.Net;
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-using MediaBrowser.Model.Logging;
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-using MediaBrowser.Model.Net;
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-using System;
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-using System.Collections.Concurrent;
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-using System.Collections.Generic;
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-using System.Collections.Specialized;
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-using System.Globalization;
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-using System.IO;
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-using System.Linq;
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-using System.Net;
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-using System.Net.Cache;
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-using System.Text;
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-using System.Threading;
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-using System.Threading.Tasks;
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-using MediaBrowser.Model.IO;
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-using MediaBrowser.Model.IO;
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-
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-namespace MediaBrowser.Common.Implementations.HttpClientManager
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-{
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- /// <summary>
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- /// Class HttpClientManager
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- /// </summary>
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- public class HttpClientManager : IHttpClient
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- {
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- /// <summary>
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- /// When one request to a host times out, we'll ban all other requests for this period of time, to prevent scans from stalling
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- /// </summary>
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- private const int TimeoutSeconds = 30;
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-
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- /// <summary>
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- /// The _logger
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- /// </summary>
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- private readonly ILogger _logger;
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-
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- /// <summary>
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- /// The _app paths
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- /// </summary>
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- private readonly IApplicationPaths _appPaths;
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-
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- private readonly IFileSystem _fileSystem;
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- private readonly IMemoryStreamProvider _memoryStreamProvider;
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-
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- /// <summary>
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- /// Initializes a new instance of the <see cref="HttpClientManager" /> class.
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- /// </summary>
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- /// <param name="appPaths">The app paths.</param>
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- /// <param name="logger">The logger.</param>
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- /// <param name="fileSystem">The file system.</param>
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- /// <exception cref="System.ArgumentNullException">appPaths
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- /// or
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- /// logger</exception>
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- public HttpClientManager(IApplicationPaths appPaths, ILogger logger, IFileSystem fileSystem, IMemoryStreamProvider memoryStreamProvider)
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- {
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- if (appPaths == null)
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- {
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- throw new ArgumentNullException("appPaths");
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- }
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- if (logger == null)
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- {
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- throw new ArgumentNullException("logger");
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- }
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-
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- _logger = logger;
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- _fileSystem = fileSystem;
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- _memoryStreamProvider = memoryStreamProvider;
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- _appPaths = appPaths;
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-
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- // http://stackoverflow.com/questions/566437/http-post-returns-the-error-417-expectation-failed-c
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- ServicePointManager.Expect100Continue = false;
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-
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- // Trakt requests sometimes fail without this
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- ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3 | SecurityProtocolType.Tls;
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- }
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-
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- /// <summary>
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- /// Holds a dictionary of http clients by host. Use GetHttpClient(host) to retrieve or create a client for web requests.
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- /// DON'T dispose it after use.
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- /// </summary>
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- /// <value>The HTTP clients.</value>
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- private readonly ConcurrentDictionary<string, HttpClientInfo> _httpClients = new ConcurrentDictionary<string, HttpClientInfo>();
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-
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- /// <summary>
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- /// Gets
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- /// </summary>
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- /// <param name="host">The host.</param>
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- /// <param name="enableHttpCompression">if set to <c>true</c> [enable HTTP compression].</param>
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- /// <returns>HttpClient.</returns>
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- /// <exception cref="System.ArgumentNullException">host</exception>
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- private HttpClientInfo GetHttpClient(string host, bool enableHttpCompression)
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- {
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- if (string.IsNullOrEmpty(host))
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- {
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- throw new ArgumentNullException("host");
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- }
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-
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- HttpClientInfo client;
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-
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- var key = host + enableHttpCompression;
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-
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- if (!_httpClients.TryGetValue(key, out client))
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- {
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- client = new HttpClientInfo();
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-
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- _httpClients.TryAdd(key, client);
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- }
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-
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- return client;
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- }
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-
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- private WebRequest CreateWebRequest(string url)
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- {
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- try
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- {
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- return WebRequest.Create(url);
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- }
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- catch (NotSupportedException)
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- {
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- //Webrequest creation does fail on MONO randomly when using WebRequest.Create
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- //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
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-
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- var type = Type.GetType("System.Net.HttpRequestCreator, System, Version=4.0.0.0,Culture=neutral, PublicKeyToken=b77a5c561934e089");
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- var creator = Activator.CreateInstance(type, nonPublic: true) as IWebRequestCreate;
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- return creator.Create(new Uri(url)) as HttpWebRequest;
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- }
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- }
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-
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- private void AddIpv4Option(HttpWebRequest request, HttpRequestOptions options)
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- {
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- request.ServicePoint.BindIPEndPointDelegate = (servicePount, remoteEndPoint, retryCount) =>
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- {
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- if (remoteEndPoint.AddressFamily == AddressFamily.InterNetwork)
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- {
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- return new IPEndPoint(IPAddress.Any, 0);
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- }
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- throw new InvalidOperationException("no IPv4 address");
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- };
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- }
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-
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- private WebRequest GetRequest(HttpRequestOptions options, string method)
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- {
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- var url = options.Url;
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-
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- var uriAddress = new Uri(url);
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- var userInfo = uriAddress.UserInfo;
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- if (!string.IsNullOrWhiteSpace(userInfo))
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- {
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- _logger.Info("Found userInfo in url: {0} ... url: {1}", userInfo, url);
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- url = url.Replace(userInfo + "@", string.Empty);
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- }
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-
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- var request = CreateWebRequest(url);
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- var httpWebRequest = request as HttpWebRequest;
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-
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- if (httpWebRequest != null)
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- {
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- if (options.PreferIpv4)
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- {
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- AddIpv4Option(httpWebRequest, options);
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- }
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-
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- AddRequestHeaders(httpWebRequest, options);
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-
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- httpWebRequest.AutomaticDecompression = options.EnableHttpCompression ?
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- (options.DecompressionMethod ?? DecompressionMethods.Deflate) :
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- DecompressionMethods.None;
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- }
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-
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- request.CachePolicy = new RequestCachePolicy(RequestCacheLevel.BypassCache);
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-
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- if (httpWebRequest != null)
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- {
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- if (options.EnableKeepAlive)
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- {
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- httpWebRequest.KeepAlive = true;
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- }
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- }
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-
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- request.Method = method;
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- request.Timeout = options.TimeoutMs;
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-
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- if (httpWebRequest != null)
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- {
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- if (!string.IsNullOrEmpty(options.Host))
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- {
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- httpWebRequest.Host = options.Host;
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- }
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-
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- if (!string.IsNullOrEmpty(options.Referer))
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- {
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- httpWebRequest.Referer = options.Referer;
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- }
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- }
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-
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- if (!string.IsNullOrWhiteSpace(userInfo))
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- {
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- var parts = userInfo.Split(':');
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- if (parts.Length == 2)
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- {
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- request.Credentials = GetCredential(url, parts[0], parts[1]);
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- request.PreAuthenticate = true;
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- }
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- }
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-
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- return request;
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- }
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-
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- private CredentialCache GetCredential(string url, string username, string password)
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- {
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- //ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;
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- CredentialCache credentialCache = new CredentialCache();
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- credentialCache.Add(new Uri(url), "Basic", new NetworkCredential(username, password));
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- return credentialCache;
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- }
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-
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- private void AddRequestHeaders(HttpWebRequest request, HttpRequestOptions options)
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- {
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- foreach (var header in options.RequestHeaders.ToList())
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- {
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- if (string.Equals(header.Key, "Accept", StringComparison.OrdinalIgnoreCase))
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- {
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- request.Accept = header.Value;
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- }
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- else if (string.Equals(header.Key, "User-Agent", StringComparison.OrdinalIgnoreCase))
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- {
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- request.UserAgent = header.Value;
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- }
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- else
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- {
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- request.Headers.Set(header.Key, header.Value);
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- }
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- }
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- }
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-
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- /// <summary>
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- /// Gets the response internal.
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- /// </summary>
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- /// <param name="options">The options.</param>
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- /// <returns>Task{HttpResponseInfo}.</returns>
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- public Task<HttpResponseInfo> GetResponse(HttpRequestOptions options)
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- {
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- return SendAsync(options, "GET");
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- }
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-
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- /// <summary>
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- /// Performs a GET request and returns the resulting stream
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- /// </summary>
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- /// <param name="options">The options.</param>
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- /// <returns>Task{Stream}.</returns>
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- public async Task<Stream> Get(HttpRequestOptions options)
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- {
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- var response = await GetResponse(options).ConfigureAwait(false);
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-
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- return response.Content;
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- }
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-
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- /// <summary>
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- /// Performs a GET request and returns the resulting stream
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- /// </summary>
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- /// <param name="url">The URL.</param>
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- /// <param name="resourcePool">The resource pool.</param>
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- /// <param name="cancellationToken">The cancellation token.</param>
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- /// <returns>Task{Stream}.</returns>
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- public Task<Stream> Get(string url, SemaphoreSlim resourcePool, CancellationToken cancellationToken)
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- {
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- return Get(new HttpRequestOptions
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- {
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- Url = url,
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- ResourcePool = resourcePool,
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- CancellationToken = cancellationToken,
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- BufferContent = resourcePool != null
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- });
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- }
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-
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- /// <summary>
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- /// Gets the specified URL.
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- /// </summary>
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- /// <param name="url">The URL.</param>
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- /// <param name="cancellationToken">The cancellation token.</param>
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- /// <returns>Task{Stream}.</returns>
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- public Task<Stream> Get(string url, CancellationToken cancellationToken)
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- {
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- return Get(url, null, cancellationToken);
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- }
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-
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- /// <summary>
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- /// send as an asynchronous operation.
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- /// </summary>
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- /// <param name="options">The options.</param>
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- /// <param name="httpMethod">The HTTP method.</param>
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- /// <returns>Task{HttpResponseInfo}.</returns>
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- /// <exception cref="HttpException">
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- /// </exception>
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- public async Task<HttpResponseInfo> SendAsync(HttpRequestOptions options, string httpMethod)
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- {
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- if (options.CacheMode == CacheMode.None)
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- {
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- return await SendAsyncInternal(options, httpMethod).ConfigureAwait(false);
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- }
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-
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- var url = options.Url;
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- var urlHash = url.ToLower().GetMD5().ToString("N");
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-
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- var responseCachePath = Path.Combine(_appPaths.CachePath, "httpclient", urlHash);
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-
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- var response = await GetCachedResponse(responseCachePath, options.CacheLength, url).ConfigureAwait(false);
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- if (response != null)
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- {
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- return response;
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- }
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-
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- response = await SendAsyncInternal(options, httpMethod).ConfigureAwait(false);
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-
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- if (response.StatusCode == HttpStatusCode.OK)
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- {
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- await CacheResponse(response, responseCachePath).ConfigureAwait(false);
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- }
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-
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- return response;
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- }
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-
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- private async Task<HttpResponseInfo> GetCachedResponse(string responseCachePath, TimeSpan cacheLength, string url)
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- {
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- _logger.Info("Checking for cache file {0}", responseCachePath);
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-
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- try
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- {
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- if (_fileSystem.GetLastWriteTimeUtc(responseCachePath).Add(cacheLength) > DateTime.UtcNow)
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- {
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- using (var stream = _fileSystem.GetFileStream(responseCachePath, FileOpenMode.Open, FileAccessMode.Read, FileShareMode.Read, true))
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- {
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- var memoryStream = _memoryStreamProvider.CreateNew();
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-
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- await stream.CopyToAsync(memoryStream).ConfigureAwait(false);
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- memoryStream.Position = 0;
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-
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- return new HttpResponseInfo
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- {
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- ResponseUrl = url,
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- Content = memoryStream,
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- StatusCode = HttpStatusCode.OK,
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- ContentLength = memoryStream.Length
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- };
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- }
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- }
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- }
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- catch (FileNotFoundException)
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- {
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-
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- }
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- catch (DirectoryNotFoundException)
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- {
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-
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- }
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-
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- return null;
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- }
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-
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- private async Task CacheResponse(HttpResponseInfo response, string responseCachePath)
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- {
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- _fileSystem.CreateDirectory(Path.GetDirectoryName(responseCachePath));
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-
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- using (var responseStream = response.Content)
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- {
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- var memoryStream = _memoryStreamProvider.CreateNew();
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- await responseStream.CopyToAsync(memoryStream).ConfigureAwait(false);
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- memoryStream.Position = 0;
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-
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- 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>());
|
|
|
|
- }
|
|
|
|
- }
|
|
|
|
- }
|
|
|
|
- }
|
|
|
|
-}
|
|
|