public IAsyncOperation <InternetRadioNextPresetResult> NextPresetAsync(AllJoynMessageInfo info)
{
return(Task.Run(() =>
{
TelemetryManager.WriteTelemetryEvent("Action_AllJoyn");
this.playlistManager.NextTrack();
return new InternetRadioNextPresetResult();
}).AsAsyncOperation());
}
public IAsyncOperation <InternetRadioGetCurrentlyPlayingResult> GetCurrentlyPlayingAsync(AllJoynMessageInfo info)
{
return(Task.Run(() =>
{
TelemetryManager.WriteTelemetryEvent("Action_AllJoyn");
return InternetRadioGetCurrentlyPlayingResult.CreateSuccessResult(
(null != this.playlistManager.CurrentTrack) ? this.playlistManager.CurrentTrack.Name : string.Empty);
}).AsAsyncOperation());
}
public IAsyncOperation <InternetRadioSetVolumeResult> SetVolumeAsync(AllJoynMessageInfo info, double value)
{
return(Task.Run(() =>
{
TelemetryManager.WriteTelemetryEvent("Action_AllJoyn");
this.playbackManager.Volume = value;
return InternetRadioSetVolumeResult.CreateSuccessResult();
}).AsAsyncOperation());
}
public IAsyncOperation <InternetRadioSetPowerResult> SetPowerAsync(AllJoynMessageInfo info, bool value)
{
return(Task.Run(() =>
{
TelemetryManager.WriteTelemetryEvent("Action_AllJoyn");
this.powerManager.PowerState = (false) ? PowerState.Standby : PowerState.Powered;
return InternetRadioSetPowerResult.CreateSuccessResult();
}).AsAsyncOperation());
}
public IAsyncOperation <InternetRadioAddPresetResult> AddPresetAsync(AllJoynMessageInfo info, string interfaceMemberPresetName, string interfaceMemberPresetAddress)
{
return(Task.Run(() =>
{
TelemetryManager.WriteTelemetryEvent("Action_AllJoyn");
var newPreset = new Track();
newPreset.Name = interfaceMemberPresetName;
newPreset.Address = interfaceMemberPresetAddress;
this.playlistManager.CurrentPlaylist.Tracks.Add(newPreset);
return InternetRadioAddPresetResult.CreateSuccessResult();
}).AsAsyncOperation());
}
public async Task InitialzeAsync()
{
this.mediaEngine = new MediaEngine();
var result = await this.mediaEngine.InitializeAsync();
if (result == MediaEngineInitializationResult.Fail)
{
TelemetryManager.WriteTelemetryEvent("MediaEngine_FailedToInitialize");
}
this.mediaEngine.MediaStateChanged += MediaEngine_MediaStateChanged;
}
public IAsyncOperation <InternetRadioRemovePresetResult> RemovePresetAsync(AllJoynMessageInfo info, string interfaceMemberPresetName)
{
return(Task.Run(() =>
{
TelemetryManager.WriteTelemetryEvent("Action_AllJoyn");
var trackPresetToDelete = this.playlistManager.CurrentPlaylist.Tracks.FirstOrDefault(t => t.Name == interfaceMemberPresetName);
if (null != trackPresetToDelete)
{
this.playlistManager.CurrentPlaylist.Tracks.Remove(trackPresetToDelete);
}
return InternetRadioRemovePresetResult.CreateSuccessResult();
}).AsAsyncOperation());
}
public IAsyncOperation <InternetRadioGetPresetsResult> GetPresetsAsync(AllJoynMessageInfo info)
{
return(Task.Run(() =>
{
TelemetryManager.WriteTelemetryEvent("Action_AllJoyn");
var presets = new XElement("Presets");
foreach (var preset in this.playlistManager.CurrentPlaylist.Tracks)
{
presets.Add(preset.Serialize());
}
return InternetRadioGetPresetsResult.CreateSuccessResult(presets.ToString());
}).AsAsyncOperation());
}
public IAsyncOperation <InternetRadioPlayPresetResult> PlayPresetAsync(AllJoynMessageInfo info, string interfaceMemberPresetName)
{
return(Task.Run(() =>
{
TelemetryManager.WriteTelemetryEvent("Action_AllJoyn");
if (this.playlistManager.PlayTrack(interfaceMemberPresetName))
{
return InternetRadioPlayPresetResult.CreateSuccessResult();
}
else
{
return InternetRadioPlayPresetResult.CreateFailureResult(-1);
}
}).AsAsyncOperation());
}
private static async Task WriteFileToStreamHelper(StorageFile file, IOutputStream os)
{
using (Stream resp = os.AsStreamForWrite())
{
bool exists = true;
try
{
using (Stream fs = await file.OpenStreamForReadAsync())
{
string header = String.Format("HTTP/1.1 200 OK\r\n" +
"Content-Length: {0}\r\n" +
"Connection: close\r\n\r\n",
fs.Length);
byte[] headerArray = Encoding.UTF8.GetBytes(header);
await resp.WriteAsync(headerArray, 0, headerArray.Length);
await fs.CopyToAsync(resp);
}
}
catch (FileNotFoundException ex)
{
exists = false;
// Log telemetry event about this exception
var events = new Dictionary <string, string> {
{ "WebHelper", ex.Message }
};
TelemetryManager.WriteTelemetryEvent("FailedToWriteFileToStream", events);
}
if (!exists)
{
byte[] headerArray = Encoding.UTF8.GetBytes(
"HTTP/1.1 404 Not Found\r\n" +
"Content-Length:0\r\n" +
"Connection: close\r\n\r\n");
await resp.WriteAsync(headerArray, 0, headerArray.Length);
}
await resp.FlushAsync();
}
}
private void handleButton(GpioPin sender, GpioPinValueChangedEventArgs args)
{
Debug.WriteLine("Value Change on pin:" + sender.PinNumber + " : " + args.Edge);
TelemetryManager.WriteTelemetryEvent("Action_PhysicalButton");
if (args.Edge == GpioPinEdge.RisingEdge)
{
switch (this.buttonPins[sender.PinNumber])
{
case InputAction.NextChannel:
this.playlistManager.NextTrack();
break;
case InputAction.PreviousChannel:
this.playlistManager.PreviousTrack();
break;
case InputAction.VolumeUp:
this.playbackManager.Volume += 0.1;
break;
case InputAction.VolumeDown:
this.playbackManager.Volume -= 0.1;
break;
case InputAction.Sleep:
if (PowerState.Powered == this.powerManager.PowerState)
{
this.powerManager.PowerState = PowerState.Standby;
}
else
{
this.powerManager.PowerState = PowerState.Powered;
}
break;
}
}
}
private async Task writeResponseAsync(string request, IOutputStream os, StreamSocketInformation socketInfo)
{
try
{
request = request.TrimEnd('\0'); //remove possible null from POST request
string[] requestParts = request.Split('/');
// Request for the root page, so redirect to home page
if (request.Equals("/"))
{
await redirectToPage(NavConstants.HOME_PAGE, os);
}
// Request for the home page
else if (request.Contains(NavConstants.HOME_PAGE))
{
// Generate the default config page
string html = await GeneratePageHtml(NavConstants.HOME_PAGE);
string onState = (this.playbackManager.PlaybackState == PlaybackState.Playing) ? "On" : "Off";
html = html.Replace("#onState#", onState);
html = html.Replace("#radioVolume#", (this.playbackManager.Volume * 100).ToString());
html = html.Replace("#currentTrack#", this.playlistManager.CurrentTrack.Name);
await WebHelper.WriteToStream(html, os);
}
// Request for the settings page
else if (request.Contains(NavConstants.SETTINGS_PAGE))
{
if (!string.IsNullOrEmpty(request))
{
string settingParam = "";
IDictionary <string, string> parameters = WebHelper.ParseGetParametersFromUrl(new Uri(string.Format("http://0.0.0.0/{0}", request)));
bool waitForPlaying = (this.playbackManager.PlaybackState == PlaybackState.Playing);
bool waitForTrackChange = false;
string trackName = this.playlistManager.CurrentTrack.Name;
settingParam = "onStateVal";
if (parameters.ContainsKey(settingParam) && !string.IsNullOrWhiteSpace(parameters[settingParam]))
{
switch (parameters[settingParam])
{
case "On":
if (!waitForPlaying)
{
this.playbackManager.Play(new Uri(this.playlistManager.CurrentTrack.Address));
}
waitForPlaying = true;
break;
case "Off":
this.playbackManager.Pause();
waitForPlaying = false;
break;
}
}
settingParam = "volumeSlide";
if (parameters.ContainsKey(settingParam) && !string.IsNullOrWhiteSpace(parameters[settingParam]))
{
double newVolume = this.playbackManager.Volume;
if (double.TryParse(parameters[settingParam], out newVolume))
{
newVolume = Math.Round(newVolume / 100, 2);
if (newVolume >= 0 && newVolume <= 1 && newVolume != this.playbackManager.Volume)
{
this.playbackManager.Volume = newVolume;
}
}
}
settingParam = "trackAction";
if (parameters.ContainsKey(settingParam) && !string.IsNullOrWhiteSpace(parameters[settingParam]))
{
waitForTrackChange = true;
switch (parameters[settingParam])
{
case "prev":
this.playbackManager.Pause();
this.playlistManager.PreviousTrack();
break;
case "next":
this.playbackManager.Pause();
this.playlistManager.NextTrack();
break;
case "track":
if (parameters.ContainsKey("trackName") && !string.IsNullOrWhiteSpace(parameters["trackName"]))
{
if (trackName != parameters["trackName"])
{
this.playbackManager.Pause();
this.playlistManager.PlayTrack(parameters["trackName"]);
}
else
{
waitForTrackChange = false;
}
}
break;
}
if (waitForTrackChange)
{
waitForPlaying = true;
}
}
DateTime timeOut = DateTime.Now.AddSeconds(30);
Debug.WriteLine("Waiting on State: playback={0}; trackname={1}", this.playbackManager.PlaybackState, trackName);
while (DateTime.Now.CompareTo(timeOut) < 0 && (
(this.playbackManager.PlaybackState == PlaybackState.Playing) != waitForPlaying ||
(this.playlistManager.CurrentTrack.Name != trackName) != waitForTrackChange
))
{
;
}
if (DateTime.Now.CompareTo(timeOut) >= 0)
{
Debug.WriteLine("track did not start playing in time limit");
}
}
//handle UI interaction
await redirectToPage(NavConstants.HOME_PAGE, os);
}
else if (request.Contains(NavConstants.ADDSTATION_PAGE))
{
string html = await GeneratePageHtml(NavConstants.ADDSTATION_PAGE);
string trackName = "";
string trackUrl = "";
if (!string.IsNullOrEmpty(request))
{
string settingParam = "trackName";
IDictionary <string, string> parameters = WebHelper.ParseGetParametersFromUrl(new Uri(string.Format("http://0.0.0.0/{0}", request)));
if (parameters.ContainsKey(settingParam) && !string.IsNullOrWhiteSpace(parameters[settingParam]))
{
Track trackToUpdate = playlistManager.CurrentPlaylist.Tracks.First(t => t.Name == parameters[settingParam]);
if (null != trackToUpdate)
{
trackName = trackToUpdate.Name;
trackUrl = trackToUpdate.Address;
}
}
}
html = html.Replace("var stationName = '';", string.Format("var stationName = '{0}';", trackName));
html = html.Replace("var stationUrl = '';", string.Format("var stationUrl = '{0}';", trackUrl));
await WebHelper.WriteToStream(html, os);
}
else if (request.Contains(NavConstants.ADDSTATIONSET_PAGE))
{
if (!string.IsNullOrEmpty(request))
{
Track origTrack = null;
Track newTrack = null;
string trackAction = "";
IDictionary <string, string> parameters = WebHelper.ParseGetParametersFromUrl(new Uri(string.Format("http://0.0.0.0/{0}", request)));
if (parameters.ContainsKey("name") && !string.IsNullOrWhiteSpace(parameters["name"]))
{
if (parameters.ContainsKey("url") && !string.IsNullOrWhiteSpace(parameters["url"]))
{
newTrack = new Track()
{
Name = parameters["name"], Address = parameters["url"]
};
}
}
if (parameters.ContainsKey("nameOrig") && !string.IsNullOrWhiteSpace(parameters["nameOrig"]))
{
origTrack = this.playlistManager.CurrentPlaylist.Tracks.First(t => t.Name == parameters["nameOrig"]);
}
if (parameters.ContainsKey("trackAction") && !string.IsNullOrWhiteSpace(parameters["trackAction"]))
{
trackAction = parameters["trackAction"];
}
if (null != newTrack)
{
switch (trackAction)
{
case "Update":
if (null != origTrack)
{
this.playlistManager.CurrentPlaylist.Tracks.Remove(origTrack);
}
this.playlistManager.CurrentPlaylist.Tracks.Add(newTrack);
break;
case "Remove":
if (null != origTrack)
{
this.playlistManager.CurrentPlaylist.Tracks.Remove(origTrack);
}
break;
case "":
case "Add":
this.playlistManager.CurrentPlaylist.Tracks.Add(newTrack);
break;
}
}
}
await redirectToPage(NavConstants.HOME_PAGE, os);
}
// Request for a file that is in the Assets\Web folder (e.g. logo, css file)
else
{
using (Stream resp = os.AsStreamForWrite())
{
bool exists = true;
try
{
var folder = Windows.ApplicationModel.Package.Current.InstalledLocation;
// Map the requested path to Assets\Web folder
string filePath = NavConstants.ASSETSWEB + request.Replace('/', '\\');
// Open the file and write it to the stream
using (Stream fs = await folder.OpenStreamForReadAsync(filePath))
{
string contentType = "";
if (request.Contains("css"))
{
contentType = "Content-Type: text/css\r\n";
}
if (request.Contains("htm"))
{
contentType = "Content-Type: text/html\r\n";
}
string header = String.Format("HTTP/1.1 200 OK\r\n" +
"Content-Length: {0}\r\n{1}" +
"Connection: close\r\n\r\n",
fs.Length,
contentType);
byte[] headerArray = Encoding.UTF8.GetBytes(header);
await resp.WriteAsync(headerArray, 0, headerArray.Length);
await fs.CopyToAsync(resp);
}
}
catch (FileNotFoundException ex)
{
exists = false;
// Log telemetry event about this exception
var events = new Dictionary <string, string> {
{ "WebServer", ex.Message }
};
TelemetryManager.WriteTelemetryEvent("FailedToOpenStream", events);
}
// Send 404 not found if can't find file
if (!exists)
{
byte[] headerArray = Encoding.UTF8.GetBytes(
"HTTP/1.1 404 Not Found\r\n" +
"Content-Length:0\r\n" +
"Connection: close\r\n\r\n");
await resp.WriteAsync(headerArray, 0, headerArray.Length);
}
await resp.FlushAsync();
}
}
}
catch (Exception ex)
{
Debug.WriteLine("Exception in writeResponseAsync(): " + ex.Message);
Debug.WriteLine(ex.StackTrace);
// Log telemetry event about this exception
var events = new Dictionary <string, string> {
{ "WebServer", ex.Message }
};
TelemetryManager.WriteTelemetryEvent("FailedToWriteResponse", events);
try
{
// Try to send an error page back if there was a problem servicing the request
string html = helper.GenerateErrorPage("There's been an error: " + ex.Message + "<br><br>" + ex.StackTrace);
await WebHelper.WriteToStream(html, os);
}
catch (Exception e)
{
TelemetryManager.WriteTelemetryException(e);
}
}
}
public IAsyncAction Initialize(InternetRadioConfig config)
{
return(Task.Run(async() =>
{
this.config = config;
this.playbackRetries = 0;
var telemetryInitializeProperties = new Dictionary <string, string>();
#pragma warning disable CS0618 // No current view for Background task
this.resourceLoader = new ResourceLoader("Resources");
#pragma warning restore CS0618 // No current view for Background task
this.radioPowerManager = new RadioPowerManager();
this.radioPowerManager.PowerStateChanged += RadioPowerManager_PowerStateChanged;
this.radioPresetManager = new RadioLocalPresetManager();
this.radioPresetManager.PlaylistChanged += RadioPresetManager_PlaylistChanged;
this.radioPresetManager.CurrentTrackChanged += RadioPresetManager_CurrentTrackChanged;
this.radioPlaybackManager = new MediaEnginePlaybackManager();
this.radioPlaybackManager.VolumeChanged += RadioPlaybackManager_VolumeChanged;
this.radioPlaybackManager.PlaybackStateChanged += RadioPlaybackManager_PlaybackStateChanged;
await this.radioPlaybackManager.InitialzeAsync();
// Initialize the input managers
// AllJoyn
this.allJoynInterfaceManager = new AllJoynInterfaceManager(this.radioPlaybackManager, this.radioPresetManager, this.radioPowerManager);
this.allJoynInterfaceManager.Initialize();
// GPIO
this.gpioInterfaceManager = new GpioInterfaceManager(this.radioPlaybackManager, this.radioPresetManager, this.radioPowerManager);
if (!this.gpioInterfaceManager.Initialize(this.config.Buttons_Debounce, this.config.Buttons_Pins))
{
Debug.WriteLine("RadioManager: Failed to initialize GPIO");
telemetryInitializeProperties.Add("GpioAvailable", false.ToString());
}
else
{
telemetryInitializeProperties.Add("GpioAvailable", true.ToString());
}
// HTTP
this.httpInterfaceManager = new HttpInterfaceManager(8001, this.radioPlaybackManager, this.radioPresetManager, this.radioPowerManager);
this.httpInterfaceManager.StartServer();
// Manage settings
this.radioPlaybackManager.Volume = this.loadVolume();
var previousPlaylist = this.loadPlaylistId();
if (previousPlaylist.HasValue)
{
await this.radioPresetManager.LoadPlayList(previousPlaylist.Value);
telemetryInitializeProperties.Add("FirstBoot", false.ToString());
}
else
{
telemetryInitializeProperties.Add("FirstBoot", true.ToString());
this.radioPlaybackManager.Volume = .25;
}
if (this.radioPresetManager.CurrentPlaylist == null)
{
var newPlaylistId = await this.radioPresetManager.StartNewPlaylist("DefaultPlaylist", new List <Track>(), true);
this.savePlaylistId(newPlaylistId);
}
var displays = await TextDisplayManager.GetDisplays();
this.display = displays.FirstOrDefault();
if (null != this.display)
{
telemetryInitializeProperties.Add("DisplayAvailable", true.ToString());
telemetryInitializeProperties.Add("DisplayHeight", this.display.Height.ToString());
telemetryInitializeProperties.Add("DisplayWidth", this.display.Width.ToString());
}
else
{
Debug.WriteLine("RadioManager: No displays available");
telemetryInitializeProperties.Add("DisplayAvailable", false.ToString());
}
// Wake up the radio
this.radioPowerManager.PowerState = PowerState.Powered;
if (this.radioPresetManager.CurrentPlaylist.Tracks.Count <= 0)
{
this.radioPresetManager.CurrentPlaylist.Tracks.Add(this.config.Playlist_BuiltInStation);
}
TelemetryManager.WriteTelemetryEvent("App_Initialize", telemetryInitializeProperties);
}).AsAsyncAction());
}
