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using MediaBrowser.Common.Configuration;
using MediaBrowser.Common.Net;
using MediaBrowser.Controller;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Connect;
using MediaBrowser.Controller.Security;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.Net;
using MediaBrowser.Model.Serialization;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Net;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Server.Implementations.Connect
{
public class ConnectManager : IConnectManager
{
private readonly ILogger _logger;
private readonly IApplicationPaths _appPaths;
private readonly IJsonSerializer _json;
private readonly IEncryptionManager _encryption;
private readonly IHttpClient _httpClient;
private readonly IServerApplicationHost _appHost;
private readonly IServerConfigurationManager _config;
public string ConnectServerId { get; set; }
public string ConnectAccessKey { get; set; }
public string DiscoveredWanIpAddress { get; private set; }
public string WanIpAddress
{
get
{
var address = _config.Configuration.WanDdns;
if (string.IsNullOrWhiteSpace(address))
{
address = DiscoveredWanIpAddress;
}
return address;
}
}
public string WanApiAddress
{
get
{
var ip = WanIpAddress;
if (!string.IsNullOrEmpty(ip))
{
if (!ip.StartsWith("http://", StringComparison.OrdinalIgnoreCase) &&
!ip.StartsWith("https://", StringComparison.OrdinalIgnoreCase))
{
ip = "http://" + ip;
}
return ip + ":" + _config.Configuration.HttpServerPortNumber.ToString(CultureInfo.InvariantCulture);
}
return null;
}
}
public ConnectManager(ILogger logger,
IApplicationPaths appPaths,
IJsonSerializer json,
IEncryptionManager encryption,
IHttpClient httpClient,
IServerApplicationHost appHost,
IServerConfigurationManager config)
{
_logger = logger;
_appPaths = appPaths;
_json = json;
_encryption = encryption;
_httpClient = httpClient;
_appHost = appHost;
_config = config;
LoadCachedData();
}
internal void OnWanAddressResolved(string address)
{
DiscoveredWanIpAddress = address;
UpdateConnectInfo();
}
private async void UpdateConnectInfo()
{
var wanApiAddress = WanApiAddress;
if (string.IsNullOrWhiteSpace(wanApiAddress))
{
_logger.Warn("Cannot update Media Browser Connect information without a WanApiAddress");
return;
}
try
{
var hasExistingRecord = !string.IsNullOrWhiteSpace(ConnectServerId) &&
!string.IsNullOrWhiteSpace(ConnectAccessKey);
var createNewRegistration = !hasExistingRecord;
if (hasExistingRecord)
{
try
{
await UpdateServerRegistration(wanApiAddress).ConfigureAwait(false);
}
catch (HttpException ex)
{
if (!ex.StatusCode.HasValue || ex.StatusCode.Value != HttpStatusCode.NotFound || ex.StatusCode.Value != HttpStatusCode.Unauthorized)
{
throw;
}
createNewRegistration = true;
}
}
if (createNewRegistration)
{
await CreateServerRegistration(wanApiAddress).ConfigureAwait(false);
}
}
catch (Exception ex)
{
_logger.ErrorException("Error registering with Connect", ex);
}
}
private async Task CreateServerRegistration(string wanApiAddress)
{
var url = "Servers";
url = GetConnectUrl(url);
var postData = new Dictionary<string, string>
{
{"name", _appHost.FriendlyName},
{"url", wanApiAddress},
{"systemid", _appHost.SystemId}
};
using (var stream = await _httpClient.Post(url, postData, CancellationToken.None).ConfigureAwait(false))
{
var data = _json.DeserializeFromStream<ServerRegistrationResponse>(stream);
ConnectServerId = data.Id;
ConnectAccessKey = data.AccessKey;
CacheData();
}
}
private async Task UpdateServerRegistration(string wanApiAddress)
{
var url = "Servers";
url = GetConnectUrl(url);
url += "?id=" + ConnectServerId;
var options = new HttpRequestOptions
{
Url = url,
CancellationToken = CancellationToken.None
};
options.SetPostData(new Dictionary<string, string>
{
{"name", _appHost.FriendlyName},
{"url", wanApiAddress},
{"systemid", _appHost.SystemId}
});
options.RequestHeaders.Add("X-Connect-Token", ConnectAccessKey);
// No need to examine the response
using (var stream = (await _httpClient.Post(options).ConfigureAwait(false)).Content)
{
}
}
private string CacheFilePath
{
get { return Path.Combine(_appPaths.DataPath, "connect.txt"); }
}
private void CacheData()
{
var path = CacheFilePath;
try
{
Directory.CreateDirectory(Path.GetDirectoryName(path));
var json = _json.SerializeToString(new ConnectData
{
AccessKey = ConnectAccessKey,
ServerId = ConnectServerId
});
var encrypted = _encryption.EncryptString(json);
File.WriteAllText(path, encrypted, Encoding.UTF8);
}
catch (Exception ex)
{
_logger.ErrorException("Error saving data", ex);
}
}
private void LoadCachedData()
{
var path = CacheFilePath;
try
{
var encrypted = File.ReadAllText(path, Encoding.UTF8);
var json = _encryption.DecryptString(encrypted);
var data = _json.DeserializeFromString<ConnectData>(json);
ConnectAccessKey = data.AccessKey;
ConnectServerId = data.ServerId;
}
catch (IOException)
{
// File isn't there. no biggie
}
catch (Exception ex)
{
_logger.ErrorException("Error loading data", ex);
}
}
private string GetConnectUrl(string handler)
{
return "http://mb3admin.com/test/connect/" + handler;
}
}
}
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