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using MediaBrowser.Common;
using MediaBrowser.Common.Configuration;
using MediaBrowser.Common.Net;
using MediaBrowser.Controller.Connect;
using MediaBrowser.Controller.Plugins;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.Net;
using System;
using System.IO;
using System.Net;
using System.Text;
using System.Threading;
namespace MediaBrowser.Server.Implementations.Connect
{
public class ConnectEntryPoint : IServerEntryPoint
{
private Timer _timer;
private readonly IHttpClient _httpClient;
private readonly IApplicationPaths _appPaths;
private readonly ILogger _logger;
private readonly IConnectManager _connectManager;
private readonly INetworkManager _networkManager;
private readonly IApplicationHost _appHost;
public ConnectEntryPoint(IHttpClient httpClient, IApplicationPaths appPaths, ILogger logger, INetworkManager networkManager, IConnectManager connectManager, IApplicationHost appHost)
{
_httpClient = httpClient;
_appPaths = appPaths;
_logger = logger;
_networkManager = networkManager;
_connectManager = connectManager;
_appHost = appHost;
}
public void Run()
{
LoadCachedAddress();
_timer = new Timer(TimerCallback, null, TimeSpan.FromSeconds(5), TimeSpan.FromHours(3));
}
private readonly string[] _ipLookups = { "http://bot.whatismyipaddress.com", "https://connect.emby.media/service/ip" };
private async void TimerCallback(object state)
{
foreach (var ipLookupUrl in _ipLookups)
{
try
{
using (var stream = await _httpClient.Get(new HttpRequestOptions
{
Url = ipLookupUrl,
UserAgent = "Emby Server/" + _appHost.ApplicationVersion
}).ConfigureAwait(false))
{
using (var reader = new StreamReader(stream))
{
var address = await reader.ReadToEndAsync().ConfigureAwait(false);
if (IsValid(address))
{
((ConnectManager)_connectManager).OnWanAddressResolved(address);
CacheAddress(address);
return;
}
}
}
}
catch (HttpException)
{
}
catch (Exception ex)
{
_logger.ErrorException("Error getting connection info", ex);
}
}
}
private string CacheFilePath
{
get { return Path.Combine(_appPaths.DataPath, "wan.txt"); }
}
private void CacheAddress(string address)
{
var path = CacheFilePath;
try
{
Directory.CreateDirectory(Path.GetDirectoryName(path));
File.WriteAllText(path, address, Encoding.UTF8);
}
catch (Exception ex)
{
_logger.ErrorException("Error saving data", ex);
}
}
private void LoadCachedAddress()
{
var path = CacheFilePath;
try
{
var endpoint = File.ReadAllText(path, Encoding.UTF8);
if (IsValid(endpoint))
{
((ConnectManager)_connectManager).OnWanAddressResolved(endpoint);
}
}
catch (IOException)
{
// File isn't there. no biggie
}
catch (Exception ex)
{
_logger.ErrorException("Error loading data", ex);
}
}
private bool IsValid(string address)
{
IPAddress ipAddress;
var valid = IPAddress.TryParse(address, out ipAddress);
if (!valid)
{
_logger.Error("{0} is not a valid ip address", address);
}
return valid;
}
public void Dispose()
{
if (_timer != null)
{
_timer.Dispose();
_timer = null;
}
}
}
}
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