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rework tuner discovery

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This commit is contained in:
Luke Pulverenti 2017-03-13 00:08:49 -04:00
parent b38b7a7062
commit 0650be4780
4 changed files with 75 additions and 160 deletions
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1
Emby.Server.Implementations/Emby.Server.Implementations.csproj
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@ -171,7 +171,6 @@
<Compile Include="LiveTv\RefreshChannelsScheduledTask.cs" />
<Compile Include="LiveTv\TunerHosts\BaseTunerHost.cs" />
<Compile Include="LiveTv\TunerHosts\HdHomerun\HdHomerunManager.cs" />
<Compile Include="LiveTv\TunerHosts\HdHomerun\HdHomerunDiscovery.cs" />
<Compile Include="LiveTv\TunerHosts\HdHomerun\HdHomerunHost.cs" />
<Compile Include="LiveTv\TunerHosts\HdHomerun\HdHomerunHttpStream.cs" />
<Compile Include="LiveTv\TunerHosts\HdHomerun\HdHomerunUdpStream.cs" />

158
Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunDiscovery.cs
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@ -1,158 +0,0 @@
using MediaBrowser.Common.Configuration;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Dlna;
using MediaBrowser.Controller.LiveTv;
using MediaBrowser.Controller.Plugins;
using MediaBrowser.Model.Extensions;
using MediaBrowser.Model.LiveTv;
using MediaBrowser.Model.Logging;
using System;
using System.Linq;
using System.Threading;
using MediaBrowser.Common.Net;
using MediaBrowser.Model.Dlna;
using MediaBrowser.Model.Events;
using MediaBrowser.Model.Serialization;
namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
{
public class HdHomerunDiscovery : IServerEntryPoint
{
private readonly IDeviceDiscovery _deviceDiscovery;
private readonly IServerConfigurationManager _config;
private readonly ILogger _logger;
private readonly ILiveTvManager _liveTvManager;
private readonly SemaphoreSlim _semaphore = new SemaphoreSlim(1, 1);
private readonly IHttpClient _httpClient;
private readonly IJsonSerializer _json;
public HdHomerunDiscovery(IDeviceDiscovery deviceDiscovery, IServerConfigurationManager config, ILogger logger, ILiveTvManager liveTvManager, IHttpClient httpClient, IJsonSerializer json)
{
_deviceDiscovery = deviceDiscovery;
_config = config;
_logger = logger;
_liveTvManager = liveTvManager;
_httpClient = httpClient;
_json = json;
}
public void Run()
{
_deviceDiscovery.DeviceDiscovered += _deviceDiscovery_DeviceDiscovered;
}
void _deviceDiscovery_DeviceDiscovered(object sender, GenericEventArgs<UpnpDeviceInfo> e)
{
string server = null;
var info = e.Argument;
if (info.Headers.TryGetValue("SERVER", out server) && server.IndexOf("HDHomeRun", StringComparison.OrdinalIgnoreCase) != -1)
{
string location;
if (info.Headers.TryGetValue("Location", out location))
{
//_logger.Debug("HdHomerun found at {0}", location);
// Just get the beginning of the url
Uri uri;
if (Uri.TryCreate(location, UriKind.Absolute, out uri))
{
var apiUrl = location.Replace(uri.LocalPath, String.Empty, StringComparison.OrdinalIgnoreCase)
.TrimEnd('/');
//_logger.Debug("HdHomerun api url: {0}", apiUrl);
AddDevice(apiUrl);
}
}
}
}
private async void AddDevice(string url)
{
await _semaphore.WaitAsync().ConfigureAwait(false);
try
{
var options = GetConfiguration();
if (options.TunerHosts.Any(i =>
string.Equals(i.Type, HdHomerunHost.DeviceType, StringComparison.OrdinalIgnoreCase) &&
UriEquals(i.Url, url)))
{
return;
}
// Strip off the port
url = new Uri(url).GetComponents(UriComponents.AbsoluteUri & ~UriComponents.Port, UriFormat.UriEscaped).TrimEnd('/');
// Test it by pulling down the lineup
using (var stream = await _httpClient.Get(new HttpRequestOptions
{
Url = string.Format("{0}/discover.json", url),
CancellationToken = CancellationToken.None,
BufferContent = false
}))
{
var response = _json.DeserializeFromStream<HdHomerunHost.DiscoverResponse>(stream);
var existing = GetConfiguration().TunerHosts
.FirstOrDefault(i => string.Equals(i.Type, HdHomerunHost.DeviceType, StringComparison.OrdinalIgnoreCase) && string.Equals(i.DeviceId, response.DeviceID, StringComparison.OrdinalIgnoreCase));
if (existing == null)
{
await _liveTvManager.SaveTunerHost(new TunerHostInfo
{
Type = HdHomerunHost.DeviceType,
Url = url,
DeviceId = response.DeviceID
}).ConfigureAwait(false);
}
else
{
if (!string.Equals(existing.Url, url, StringComparison.OrdinalIgnoreCase))
{
existing.Url = url;
await _liveTvManager.SaveTunerHost(existing).ConfigureAwait(false);
}
}
}
}
catch (Exception ex)
{
_logger.ErrorException("Error saving device", ex);
}
finally
{
_semaphore.Release();
}
}
private bool UriEquals(string savedUri, string location)
{
return string.Equals(NormalizeUrl(location), NormalizeUrl(savedUri), StringComparison.OrdinalIgnoreCase);
}
private string NormalizeUrl(string url)
{
if (!url.StartsWith("http", StringComparison.OrdinalIgnoreCase))
{
url = "http://" + url;
}
url = url.TrimEnd('/');
// Strip off the port
return new Uri(url).GetComponents(UriComponents.AbsoluteUri & ~UriComponents.Port, UriFormat.UriEscaped);
}
private LiveTvOptions GetConfiguration()
{
return _config.GetConfiguration<LiveTvOptions>("livetv");
}
public void Dispose()
{
}
}
}

69
Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunHost.cs
View File

@ -652,5 +652,74 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
public string LineupURL { get; set; }
public int TunerCount { get; set; }
}
public async Task<List<TunerHostInfo>> DiscoverDevices(int discoveryDurationMs)
{
var cancellationToken = new CancellationTokenSource(discoveryDurationMs).Token;
var list = new List<TunerHostInfo>();
// Create udp broadcast discovery message
byte[] discBytes = { 0, 2, 0, 12, 1, 4, 255, 255, 255, 255, 2, 4, 255, 255, 255, 255, 115, 204, 125, 143 };
using (var udpClient = _socketFactory.CreateUdpBroadcastSocket(0))
{
// Need a way to set the Receive timeout on the socket otherwise this might never timeout?
try
{
await udpClient.SendAsync(discBytes, discBytes.Length, new IpEndPointInfo(new IpAddressInfo("255.255.255.255", IpAddressFamily.InterNetwork), 65001), cancellationToken);
while (!cancellationToken.IsCancellationRequested)
{
var response = await udpClient.ReceiveAsync(cancellationToken).ConfigureAwait(false);
var deviceIp = response.RemoteEndPoint.IpAddress.Address;
// check to make sure we have enough bytes received to be a valid message and make sure the 2nd byte is the discover reply byte
if (response.ReceivedBytes > 13 && response.Buffer[1] == 3)
{
var deviceAddress = "http://" + deviceIp;
var info = await TryGetTunerHostInfo(deviceAddress, cancellationToken).ConfigureAwait(false);
if (info != null)
{
list.Add(info);
}
}
}
}
catch (OperationCanceledException)
{
}
catch
{
// Socket timeout indicates all messages have been received.
}
}
return list;
}
private async Task<TunerHostInfo> TryGetTunerHostInfo(string url, CancellationToken cancellationToken)
{
var hostInfo = new TunerHostInfo
{
Type = Type,
Url = url
};
try
{
var modelInfo = await GetModelInfo(hostInfo, false, cancellationToken).ConfigureAwait(false);
hostInfo.DeviceId = modelInfo.DeviceID;
return hostInfo;
}
catch
{
// logged at lower levels
}
return null;
}
}
}

5
Emby.Server.Implementations/LiveTv/TunerHosts/M3UTunerHost.cs
View File

@ -176,5 +176,10 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts
{
return Task.FromResult(true);
}
public Task<List<TunerHostInfo>> DiscoverDevices(int discoveryDurationMs)
{
return Task.FromResult(new List<TunerHostInfo>());
}
}
}