2020-02-09 02:35:16 +00:00
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using System;
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2017-04-15 08:45:10 +00:00
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using System.Collections.Generic;
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2020-02-09 18:08:34 +00:00
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using System.Diagnostics;
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2017-04-15 08:45:10 +00:00
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using System.Linq;
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using System.Net;
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using System.Net.Http;
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using System.Net.Security;
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using System.Security.Cryptography.X509Certificates;
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using System.Text;
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using System.Threading.Tasks;
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2020-02-09 18:08:34 +00:00
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using CloudflareSolverRe;
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2017-11-06 10:51:26 +00:00
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using com.LandonKey.SocksWebProxy;
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using com.LandonKey.SocksWebProxy.Proxy;
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2020-02-09 18:08:34 +00:00
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using Jackett.Common.Helpers;
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2017-11-06 10:51:26 +00:00
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using Jackett.Common.Models.Config;
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2018-03-10 08:05:56 +00:00
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using Jackett.Common.Services.Interfaces;
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using NLog;
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2017-04-15 08:45:10 +00:00
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2018-03-10 08:05:56 +00:00
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namespace Jackett.Common.Utils.Clients
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2017-04-15 08:45:10 +00:00
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{
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2017-11-05 09:42:03 +00:00
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public class HttpWebClient : WebClient
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2017-04-15 08:45:10 +00:00
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{
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2020-02-10 22:16:19 +00:00
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protected static Dictionary<string, ICollection<string>> trustedCertificates = new Dictionary<string, ICollection<string>>();
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protected static string webProxyUrl;
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protected static IWebProxy webProxy;
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2017-04-15 08:45:10 +00:00
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2019-04-02 13:39:14 +00:00
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[DebuggerNonUserCode] // avoid "Exception User-Unhandled" Visual Studio messages
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2020-02-10 22:16:19 +00:00
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public static bool ValidateCertificate(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
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2019-04-02 13:39:14 +00:00
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{
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if (sender.GetType() != typeof(HttpWebRequest))
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return sslPolicyErrors == SslPolicyErrors.None;
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var request = (HttpWebRequest)sender;
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var hash = certificate.GetCertHashString();
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2020-02-10 22:16:19 +00:00
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trustedCertificates.TryGetValue(hash, out var hosts);
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2019-04-02 13:39:14 +00:00
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if (hosts != null)
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{
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if (hosts.Contains(request.Host))
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return true;
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}
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if (sslPolicyErrors != SslPolicyErrors.None)
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{
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// Throw exception with certificate details, this will cause a "Exception User-Unhandled" when running it in the Visual Studio debugger.
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// The certificate is only available inside this function, so we can't catch it at the calling method.
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throw new Exception("certificate validation failed: " + certificate.ToString());
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}
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return sslPolicyErrors == SslPolicyErrors.None;
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}
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2020-02-10 22:16:19 +00:00
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public static void InitProxy(ServerConfig serverConfig)
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2017-11-16 17:00:49 +00:00
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{
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2017-11-17 15:46:58 +00:00
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// dispose old SocksWebProxy
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2020-03-14 22:53:16 +00:00
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if (webProxy is SocksWebProxy proxy)
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proxy.Dispose();
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webProxy = null;
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2017-11-17 15:46:58 +00:00
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webProxyUrl = serverConfig.GetProxyUrl();
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if (!string.IsNullOrWhiteSpace(webProxyUrl))
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2017-11-16 17:00:49 +00:00
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{
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2017-11-17 15:46:58 +00:00
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if (serverConfig.ProxyType != ProxyType.Http)
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{
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2017-11-17 15:46:58 +00:00
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var addresses = Dns.GetHostAddressesAsync(serverConfig.ProxyUrl).Result;
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var socksConfig = new ProxyConfig
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{
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SocksAddress = addresses.FirstOrDefault(),
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Username = serverConfig.ProxyUsername,
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Password = serverConfig.ProxyPassword,
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Version = serverConfig.ProxyType == ProxyType.Socks4 ?
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ProxyConfig.SocksVersion.Four :
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ProxyConfig.SocksVersion.Five
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};
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if (serverConfig.ProxyPort.HasValue)
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{
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socksConfig.SocksPort = serverConfig.ProxyPort.Value;
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}
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webProxy = new SocksWebProxy(socksConfig, false);
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}
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else
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2017-11-16 17:00:49 +00:00
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{
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NetworkCredential creds = null;
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if (!serverConfig.ProxyIsAnonymous)
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{
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var username = serverConfig.ProxyUsername;
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var password = serverConfig.ProxyPassword;
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creds = new NetworkCredential(username, password);
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}
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webProxy = new WebProxy(webProxyUrl)
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{
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BypassProxyOnLocal = false,
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Credentials = creds
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};
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2017-11-16 17:00:49 +00:00
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}
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}
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}
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2017-11-05 09:42:03 +00:00
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public HttpWebClient(IProcessService p, Logger l, IConfigurationService c, ServerConfig sc)
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2017-04-15 08:45:10 +00:00
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: base(p: p,
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l: l,
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2017-11-05 09:42:03 +00:00
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c: c,
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sc: sc)
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2017-04-15 08:45:10 +00:00
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{
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if (webProxyUrl == null)
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InitProxy(sc);
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}
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// Called everytime the ServerConfig changes
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public override void OnNext(ServerConfig value)
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{
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var newProxyUrl = serverConfig.GetProxyUrl();
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if (webProxyUrl != newProxyUrl) // if proxy URL changed
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InitProxy(serverConfig);
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2017-04-15 08:45:10 +00:00
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}
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2020-02-10 22:16:19 +00:00
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public override void Init()
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2017-04-15 08:45:10 +00:00
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{
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ServicePointManager.DefaultConnectionLimit = 1000;
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2017-11-13 08:38:38 +00:00
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if (serverConfig.RuntimeSettings.IgnoreSslErrors == true)
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2017-04-15 08:45:10 +00:00
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{
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logger.Info(string.Format("HttpWebClient: Disabling certificate validation"));
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ServicePointManager.ServerCertificateValidationCallback += (sender, certificate, chain, sslPolicyErrors) => { return true; };
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}
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// custom handler for our own internal certificates
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2019-04-02 13:39:14 +00:00
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ServicePointManager.ServerCertificateValidationCallback += ValidateCertificate;
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2017-04-15 08:45:10 +00:00
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}
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2020-02-10 22:16:19 +00:00
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protected override async Task<WebClientByteResult> Run(WebRequest webRequest)
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2017-04-15 08:45:10 +00:00
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{
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ServicePointManager.SecurityProtocol = (SecurityProtocolType)192 | (SecurityProtocolType)768 | (SecurityProtocolType)3072;
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var cookies = new CookieContainer();
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if (!string.IsNullOrEmpty(webRequest.Cookies))
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{
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var uri = new Uri(webRequest.Url);
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var cookieUrl = new Uri(uri.Scheme + "://" + uri.Host); // don't include the path, Scheme is needed for mono compatibility
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foreach (var c in webRequest.Cookies.Split(';'))
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{
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try
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{
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cookies.SetCookies(cookieUrl, c.Trim());
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}
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catch (CookieException ex)
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{
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logger.Info("(Non-critical) Problem loading cookie {0}, {1}, {2}", uri, c, ex.Message);
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}
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}
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}
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2020-02-10 22:16:19 +00:00
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var userAgent = webRequest.EmulateBrowser.Value ? BrowserUtil.ChromeUserAgent : "Jackett/" + configService.GetVersion();
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2019-08-22 19:35:49 +00:00
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2020-02-10 22:16:19 +00:00
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using (var clearanceHandlr = new ClearanceHandler(userAgent))
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2017-04-15 08:45:10 +00:00
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{
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2019-08-22 19:35:49 +00:00
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clearanceHandlr.MaxTries = 30;
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2020-02-10 22:16:19 +00:00
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using (var clientHandlr = new HttpClientHandler
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2017-04-15 08:45:10 +00:00
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{
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CookieContainer = cookies,
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AllowAutoRedirect = false, // Do not use this - Bugs ahoy! Lost cookies and more.
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UseCookies = true,
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2017-11-17 15:46:58 +00:00
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Proxy = webProxy,
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UseProxy = (webProxy != null),
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2017-04-15 08:45:10 +00:00
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AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate
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})
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{
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clearanceHandlr.InnerHandler = clientHandlr;
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using (var client = new HttpClient(clearanceHandlr))
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{
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2017-08-11 14:52:58 +00:00
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if (webRequest.EmulateBrowser == true)
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2017-04-15 08:45:10 +00:00
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client.DefaultRequestHeaders.Add("User-Agent", BrowserUtil.ChromeUserAgent);
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else
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client.DefaultRequestHeaders.Add("User-Agent", "Jackett/" + configService.GetVersion());
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HttpResponseMessage response = null;
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using (var request = new HttpRequestMessage())
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{
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request.Headers.ExpectContinue = false;
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request.RequestUri = new Uri(webRequest.Url);
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if (webRequest.Headers != null)
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{
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foreach (var header in webRequest.Headers)
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{
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if (header.Key != "Content-Type")
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{
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request.Headers.TryAddWithoutValidation(header.Key, header.Value);
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}
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}
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}
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if (!string.IsNullOrEmpty(webRequest.Referer))
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request.Headers.Referrer = new Uri(webRequest.Referer);
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if (!string.IsNullOrEmpty(webRequest.RawBody))
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{
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var type = webRequest.Headers.Where(h => h.Key == "Content-Type").Cast<KeyValuePair<string, string>?>().FirstOrDefault();
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if (type.HasValue)
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{
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var str = new StringContent(webRequest.RawBody);
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str.Headers.Remove("Content-Type");
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str.Headers.Add("Content-Type", type.Value.Value);
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request.Content = str;
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}
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else
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request.Content = new StringContent(webRequest.RawBody);
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request.Method = HttpMethod.Post;
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}
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else if (webRequest.Type == RequestType.POST)
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{
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if (webRequest.PostData != null)
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2020-02-08 06:03:03 +00:00
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request.Content = FormUrlEncodedContentWithEncoding(webRequest.PostData, webRequest.Encoding);
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2017-04-15 08:45:10 +00:00
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request.Method = HttpMethod.Post;
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}
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else
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{
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request.Method = HttpMethod.Get;
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}
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using (response = await client.SendAsync(request))
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{
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2017-11-06 10:51:26 +00:00
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var result = new WebClientByteResult
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{
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Content = await response.Content.ReadAsByteArrayAsync()
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};
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2017-04-15 08:45:10 +00:00
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foreach (var header in response.Headers)
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{
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2020-02-10 22:16:19 +00:00
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var value = header.Value;
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2017-04-15 08:45:10 +00:00
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result.Headers[header.Key.ToLowerInvariant()] = value.ToArray();
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}
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// some cloudflare clients are using a refresh header
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// Pull it out manually
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2017-11-06 10:51:26 +00:00
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if (response.StatusCode == HttpStatusCode.ServiceUnavailable && response.Headers.Contains("Refresh"))
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2017-04-15 08:45:10 +00:00
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{
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var refreshHeaders = response.Headers.GetValues("Refresh");
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var redirval = "";
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var redirtime = 0;
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if (refreshHeaders != null)
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{
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foreach (var value in refreshHeaders)
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{
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var start = value.IndexOf("=");
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var end = value.IndexOf(";");
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var len = value.Length;
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if (start > -1)
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{
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redirval = value.Substring(start + 1);
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result.RedirectingTo = redirval;
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// normally we don't want a serviceunavailable (503) to be a redirect, but that's the nature
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// of this cloudflare approach..don't want to alter BaseWebResult.IsRedirect because normally
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// it shoudln't include service unavailable..only if we have this redirect header.
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response.StatusCode = System.Net.HttpStatusCode.Redirect;
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2020-02-10 22:16:19 +00:00
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redirtime = int.Parse(value.Substring(0, end));
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2017-04-15 08:45:10 +00:00
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System.Threading.Thread.Sleep(redirtime * 1000);
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}
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}
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}
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}
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if (response.Headers.Location != null)
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{
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result.RedirectingTo = response.Headers.Location.ToString();
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}
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2017-08-28 09:01:45 +00:00
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// Mono won't add the baseurl to relative redirects.
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// e.g. a "Location: /index.php" header will result in the Uri "file:///index.php"
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// See issue #1200
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if (result.RedirectingTo != null && result.RedirectingTo.StartsWith("file://"))
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{
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2018-06-14 15:28:57 +00:00
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// URL decoding apparently is needed to, without it e.g. Demonoid download is broken
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// TODO: is it always needed (not just for relative redirects)?
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var newRedirectingTo = WebUtilityHelpers.UrlDecode(result.RedirectingTo, webRequest.Encoding);
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2018-09-17 14:43:09 +00:00
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if (newRedirectingTo.StartsWith("file:////")) // Location without protocol but with host (only add scheme)
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newRedirectingTo = newRedirectingTo.Replace("file://", request.RequestUri.Scheme + ":");
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else
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newRedirectingTo = newRedirectingTo.Replace("file://", request.RequestUri.Scheme + "://" + request.RequestUri.Host);
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2017-08-28 09:01:45 +00:00
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logger.Debug("[MONO relative redirect bug] Rewriting relative redirect URL from " + result.RedirectingTo + " to " + newRedirectingTo);
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result.RedirectingTo = newRedirectingTo;
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}
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2017-04-15 08:45:10 +00:00
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result.Status = response.StatusCode;
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// Compatiblity issue between the cookie format and httpclient
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// Pull it out manually ignoring the expiry date then set it manually
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// http://stackoverflow.com/questions/14681144/httpclient-not-storing-cookies-in-cookiecontainer
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var responseCookies = new List<Tuple<string, string>>();
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2020-02-10 22:16:19 +00:00
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if (response.Headers.TryGetValues("set-cookie", out var cookieHeaders))
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2017-04-15 08:45:10 +00:00
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{
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foreach (var value in cookieHeaders)
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{
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var nameSplit = value.IndexOf('=');
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if (nameSplit > -1)
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{
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responseCookies.Add(new Tuple<string, string>(value.Substring(0, nameSplit), value.Substring(0, value.IndexOf(';') == -1 ? value.Length : (value.IndexOf(';'))) + ";"));
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}
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}
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var cookieBuilder = new StringBuilder();
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foreach (var cookieGroup in responseCookies.GroupBy(c => c.Item1))
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{
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cookieBuilder.AppendFormat("{0} ", cookieGroup.Last().Item2);
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}
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result.Cookies = cookieBuilder.ToString().Trim();
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}
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ServerUtil.ResureRedirectIsFullyQualified(webRequest, result);
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return result;
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}
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}
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}
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}
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}
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}
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2020-02-10 22:16:19 +00:00
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public override void AddTrustedCertificate(string host, string hash)
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2017-04-15 08:45:10 +00:00
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{
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hash = hash.ToUpper();
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2020-02-10 22:16:19 +00:00
|
|
|
trustedCertificates.TryGetValue(hash.ToUpper(), out var hosts);
|
2017-04-15 08:45:10 +00:00
|
|
|
if (hosts == null)
|
|
|
|
{
|
|
|
|
hosts = new HashSet<string>();
|
|
|
|
trustedCertificates[hash] = hosts;
|
|
|
|
}
|
|
|
|
hosts.Add(host);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|