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UTorrentProxy.cs
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UTorrentProxy.cs
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using System;
using System.Collections.Generic;
using System.Net;
using NLog;
using NzbDrone.Common.Cache;
using NzbDrone.Common.Extensions;
using NzbDrone.Common.Http;
using NzbDrone.Common.Serializer;
namespace NzbDrone.Core.Download.Clients.UTorrent
{
public interface IUTorrentProxy
{
int GetVersion(UTorrentSettings settings);
Dictionary<string, string> GetConfig(UTorrentSettings settings);
UTorrentResponse GetTorrents(string cacheID, UTorrentSettings settings);
void AddTorrentFromUrl(string torrentUrl, UTorrentSettings settings);
void AddTorrentFromFile(string fileName, byte[] fileContent, UTorrentSettings settings);
void SetTorrentSeedingConfiguration(string hash, TorrentSeedConfiguration seedConfiguration, UTorrentSettings settings);
void RemoveTorrent(string hash, bool removeData, UTorrentSettings settings);
void SetTorrentLabel(string hash, string label, UTorrentSettings settings);
void RemoveTorrentLabel(string hash, string label, UTorrentSettings settings);
void MoveTorrentToTopInQueue(string hash, UTorrentSettings settings);
void SetState(string hash, UTorrentState state, UTorrentSettings settings);
}
public class UTorrentProxy : IUTorrentProxy
{
private readonly IHttpClient _httpClient;
private readonly Logger _logger;
private readonly ICached<Dictionary<string, string>> _authCookieCache;
private readonly ICached<string> _authTokenCache;
public UTorrentProxy(ICacheManager cacheManager, IHttpClient httpClient, Logger logger)
{
_httpClient = httpClient;
_logger = logger;
_authCookieCache = cacheManager.GetCache<Dictionary<string, string>>(GetType(), "authCookies");
_authTokenCache = cacheManager.GetCache<string>(GetType(), "authTokens");
}
public int GetVersion(UTorrentSettings settings)
{
var requestBuilder = BuildRequest(settings)
.AddQueryParam("action", "getsettings");
var result = ProcessRequest(requestBuilder, settings);
return result.Build;
}
public Dictionary<string, string> GetConfig(UTorrentSettings settings)
{
var requestBuilder = BuildRequest(settings)
.AddQueryParam("action", "getsettings");
var result = ProcessRequest(requestBuilder, settings);
var configuration = new Dictionary<string, string>();
foreach (var configItem in result.Settings)
{
configuration.Add(configItem[0].ToString(), configItem[2].ToString());
}
return configuration;
}
public UTorrentResponse GetTorrents(string cacheId, UTorrentSettings settings)
{
var requestBuilder = BuildRequest(settings)
.AddQueryParam("list", 1);
if (cacheId.IsNotNullOrWhiteSpace())
{
requestBuilder.AddQueryParam("cid", cacheId);
}
var result = ProcessRequest(requestBuilder, settings);
return result;
}
public void AddTorrentFromUrl(string torrentUrl, UTorrentSettings settings)
{
var requestBuilder = BuildRequest(settings)
.AddQueryParam("action", "add-url")
.AddQueryParam("s", torrentUrl);
ProcessRequest(requestBuilder, settings);
}
public void AddTorrentFromFile(string fileName, byte[] fileContent, UTorrentSettings settings)
{
var requestBuilder = BuildRequest(settings)
.Post()
.AddQueryParam("action", "add-file")
.AddQueryParam("path", string.Empty)
.AddFormUpload("torrent_file", fileName, fileContent);
ProcessRequest(requestBuilder, settings);
}
public void SetTorrentSeedingConfiguration(string hash, TorrentSeedConfiguration seedConfiguration, UTorrentSettings settings)
{
if (seedConfiguration == null)
{
return;
}
var requestBuilder = BuildRequest(settings)
.AddQueryParam("action", "setprops")
.AddQueryParam("hash", hash);
requestBuilder.AddQueryParam("s", "seed_override")
.AddQueryParam("v", 1);
if (seedConfiguration.Ratio != null)
{
requestBuilder.AddQueryParam("s", "seed_ratio")
.AddQueryParam("v", Convert.ToInt32(seedConfiguration.Ratio.Value * 1000));
}
if (seedConfiguration.SeedTime != null)
{
requestBuilder.AddQueryParam("s", "seed_time")
.AddQueryParam("v", Convert.ToInt32(seedConfiguration.SeedTime.Value.TotalSeconds));
}
ProcessRequest(requestBuilder, settings);
}
public void RemoveTorrent(string hash, bool removeData, UTorrentSettings settings)
{
var requestBuilder = BuildRequest(settings)
.AddQueryParam("action", removeData ? "removedata" : "remove")
.AddQueryParam("hash", hash);
ProcessRequest(requestBuilder, settings);
}
public void SetTorrentLabel(string hash, string label, UTorrentSettings settings)
{
var requestBuilder = BuildRequest(settings)
.AddQueryParam("action", "setprops")
.AddQueryParam("hash", hash);
requestBuilder.AddQueryParam("s", "label")
.AddQueryParam("v", label);
ProcessRequest(requestBuilder, settings);
}
public void RemoveTorrentLabel(string hash, string label, UTorrentSettings settings)
{
var requestBuilder = BuildRequest(settings)
.AddQueryParam("action", "setprops")
.AddQueryParam("hash", hash);
requestBuilder.AddQueryParam("s", "label")
.AddQueryParam("v", label)
.AddQueryParam("s", "label")
.AddQueryParam("v", "");
ProcessRequest(requestBuilder, settings);
}
public void MoveTorrentToTopInQueue(string hash, UTorrentSettings settings)
{
var requestBuilder = BuildRequest(settings)
.AddQueryParam("action", "queuetop")
.AddQueryParam("hash", hash);
ProcessRequest(requestBuilder, settings);
}
public void SetState(string hash, UTorrentState state, UTorrentSettings settings)
{
var requestBuilder = BuildRequest(settings)
.AddQueryParam("action", state.ToString().ToLowerInvariant())
.AddQueryParam("hash", hash);
ProcessRequest(requestBuilder, settings);
}
private HttpRequestBuilder BuildRequest(UTorrentSettings settings)
{
var requestBuilder = new HttpRequestBuilder(settings.UseSsl, settings.Host, settings.Port, settings.UrlBase)
.Resource("/gui/")
.KeepAlive()
.SetHeader("Cache-Control", "no-cache")
.Accept(HttpAccept.Json);
requestBuilder.LogResponseContent = true;
requestBuilder.NetworkCredential = new BasicNetworkCredential(settings.Username, settings.Password);
return requestBuilder;
}
public UTorrentResponse ProcessRequest(HttpRequestBuilder requestBuilder, UTorrentSettings settings)
{
AuthenticateClient(requestBuilder, settings);
var request = requestBuilder.Build();
HttpResponse response;
try
{
response = _httpClient.Execute(request);
}
catch (HttpException ex)
{
if (ex.Response.StatusCode == HttpStatusCode.BadRequest || ex.Response.StatusCode == HttpStatusCode.Unauthorized)
{
_logger.Debug("Authentication required, logging in.");
AuthenticateClient(requestBuilder, settings, true);
request = requestBuilder.Build();
response = _httpClient.Execute(request);
}
else
{
throw new DownloadClientException("Unable to connect to uTorrent, please check your settings", ex);
}
}
catch (WebException ex)
{
if (ex.Status == WebExceptionStatus.TrustFailure)
{
throw new DownloadClientUnavailableException("Unable to connect to uTorrent, certificate validation failed.", ex);
}
throw new DownloadClientException("Unable to connect to uTorrent, please check your settings", ex);
}
return Json.Deserialize<UTorrentResponse>(response.Content);
}
private void AuthenticateClient(HttpRequestBuilder requestBuilder, UTorrentSettings settings, bool reauthenticate = false)
{
var authKey = string.Format("{0}:{1}", requestBuilder.BaseUrl, settings.Password);
var cookies = _authCookieCache.Find(authKey);
var authToken = _authTokenCache.Find(authKey);
if (cookies == null || authToken == null || reauthenticate)
{
_authCookieCache.Remove(authKey);
_authTokenCache.Remove(authKey);
var authLoginRequest = BuildRequest(settings).Resource("/gui/token.html").Build();
HttpResponse response;
try
{
response = _httpClient.Execute(authLoginRequest);
_logger.Debug("uTorrent authentication succeeded.");
var xmlDoc = new System.Xml.XmlDocument();
xmlDoc.LoadXml(response.Content);
authToken = xmlDoc.FirstChild.FirstChild.InnerText;
}
catch (HttpException ex)
{
if (ex.Response.StatusCode == HttpStatusCode.Unauthorized)
{
_logger.Debug("uTorrent authentication failed.");
throw new DownloadClientAuthenticationException("Failed to authenticate with uTorrent.");
}
throw new DownloadClientException("Unable to connect to uTorrent, please check your settings", ex);
}
catch (WebException ex)
{
throw new DownloadClientUnavailableException("Unable to connect to uTorrent, please check your settings", ex);
}
cookies = response.GetCookies();
_authCookieCache.Set(authKey, cookies);
_authTokenCache.Set(authKey, authToken);
}
requestBuilder.SetCookies(cookies);
requestBuilder.AddPrefixQueryParam("token", authToken, true);
}
}
}