internal HttpStreamingServer(Spotify spotify, SpotifyLinkLookup spotifyLinkLookup)
{
#if DEBUG
if (Log.IsDebugEnabled)
{
Log.Debug("HttpStreamingServer");
}
#endif
_spotify = spotify;
_spotifyLinkLookup = spotifyLinkLookup;
// Build the base URL.
StringBuilder urlBuild = new StringBuilder();
urlBuild.Append(Protocol);
urlBuild.Append(Host);
urlBuild.Append(':').Append(Port);
urlBuild.Append(BasePath);
BaseUrl = urlBuild.ToString();
// TCP listener for the HTTP server.
_listener = new TcpListener(IPAddress.Any, Port);
}
static void RunProgram()
{
#if DEBUG
if (Log.IsInfoEnabled)
{
Log.Info("Started.");
}
#endif
// Get the configuration from the Playdar etc folder.
string etc = Environment.GetEnvironmentVariable("PLAYDAR_ETC");
#if DEBUG
if (Log.IsDebugEnabled)
{
Log.Debug("PLAYDAR_ETC=\"" + etc + "\"");
}
#endif
if (string.IsNullOrEmpty(etc))
{
etc = "etc";
}
string configFilename = etc + "/spotify.conf";
if (!File.Exists(configFilename))
{
#if DEBUG
if (Log.IsErrorEnabled)
{
Log.Error("Spotify configuration file not found!");
}
#endif
return;
}
SimplePropertiesFile config = new SimplePropertiesFile(configFilename);
string username;
string password;
try
{
username = config.Sections["spotify"]["username"];
password = config.Sections["spotify"]["password"];
}
catch (Exception)
{
#if DEBUG
if (Log.IsErrorEnabled)
{
Log.Error("Couldn't get username or password from config file!");
}
#endif
return;
}
// Login to Spotify.
Spotify spotify = new Spotify();
bool loginOk = spotify.Login(username, password);
if (loginOk)
{
// Create a lookup table for Spotify links and UUIDs.
SpotifyLinkLookup spotifyLinkLookup = new SpotifyLinkLookup();
// Create an HTTP server for streaming mp3.
HttpStreamingServer streamServer = new HttpStreamingServer(spotify, spotifyLinkLookup);
streamServer.Start();
// Return resolver info.
SendJsonOutput(SpotifyResolverInfo);
// Read JSON queries.
Stream input = Console.OpenStandardInput();
do
{
string json = JsonMsgUtil.ExtractJsonInput(input);
if (String.IsNullOrEmpty(json) || json == "{}")
{
#if DEBUG
if (Log.IsInfoEnabled)
{
Log.Info("Empty message received. Leaving message receive loop.");
}
#endif
break;
}
#if DEBUG
if (Log.IsDebugEnabled)
{
Log.Debug(json);
}
#endif
JObject o = JObject.Parse(json);
string msgtype = (string)o["_msgtype"];
if (String.IsNullOrEmpty(msgtype))
{
#if DEBUG
if (Log.IsWarnEnabled)
{
Log.Warn("No message type provided. Leaving receive loop.");
}
#endif
break;
}
else if (msgtype != "rq")
{
#if DEBUG
if (Log.IsWarnEnabled)
{
Log.Warn("Unexpected JSON _msgtype! " + msgtype);
}
#endif
break;
}
#if DEBUG
if (Log.IsDebugEnabled)
{
Log.Debug("Performing search...");
}
#endif
// Perform search.
string artist = (string)o["artist"];
string track = (string)o["track"];
string album = (string)o["album"];
List <Track> searchResults = spotify.Search(artist, track, album);
#if DEBUG
if (Log.IsDebugEnabled)
{
Log.Debug("searchResults.Count = " + searchResults.Count);
}
#endif
// Build JSON results.
StringBuilder jsonBuild = new StringBuilder();
JsonTextWriter jsonWriter = new JsonTextWriter(new StringWriter(jsonBuild));
jsonWriter.WriteStartObject();
WriteProperty(jsonWriter, "_msgtype", "results");
WriteProperty(jsonWriter, "qid", (string)o["qid"]);
jsonWriter.WritePropertyName("results");
jsonWriter.WriteStartArray();
int i = 0;
foreach (Track r in searchResults)
{
// Limit number of possible results.
if (++i > MaxResults)
{
#if DEBUG
if (Log.IsWarnEnabled)
{
Log.Warn("Only returning first " + MaxResults +
" of " + searchResults.Count + " results.");
}
#endif
break;
}
// Obtain a GUID for the stream request.
string sid = spotifyLinkLookup.NewGuid(r.LinkString);
// Build a URL for the track to be delivered.
StringBuilder urlBuild = new StringBuilder();
urlBuild.Append(streamServer.BaseUrl).Append(sid);
string url = urlBuild.ToString();
#if DEBUG
if (Log.IsDebugEnabled)
{
Log.Debug("Stream URL = " + url);
}
#endif
// Work out the content length.
#if DEBUG
if (Log.IsDebugEnabled)
{
Log.Debug("Duration: " + r.Duration);
}
#endif
int seconds = r.Duration / 1000;
// Add track result to JSON response.
jsonWriter.WriteStartObject();
WriteProperty(jsonWriter, "artist", r.Artists[0].Name);
WriteProperty(jsonWriter, "track", r.Name);
WriteProperty(jsonWriter, "album", r.Album.Name);
WriteProperty(jsonWriter, "mimetype", "audio/mpeg");
WriteProperty(jsonWriter, "source", "Spotify");
WriteProperty(jsonWriter, "url", url);
WriteProperty(jsonWriter, "duration", seconds);
WriteProperty(jsonWriter, "score", CalculateScore(r, artist, track, album));
WriteProperty(jsonWriter, "bitrate", LameProgram.BitRate);
jsonWriter.WriteEndObject();
}
jsonWriter.WriteEnd();
jsonWriter.WriteEndObject();
// Send the JSON response to search query.
SendJsonOutput(jsonBuild.ToString());
} while (true);
// Tidy up after stream server.
streamServer.Shutdown();
// Logout of Spotify.
spotify.Logout();
}
}
internal HttpStreamingServer(Spotify spotify, SpotifyLinkLookup spotifyLinkLookup)
{
#if DEBUG
if (Log.IsDebugEnabled)
Log.Debug("HttpStreamingServer");
#endif
_spotify = spotify;
_spotifyLinkLookup = spotifyLinkLookup;
// Build the base URL.
StringBuilder urlBuild = new StringBuilder();
urlBuild.Append(Protocol);
urlBuild.Append(Host);
urlBuild.Append(':').Append(Port);
urlBuild.Append(BasePath);
BaseUrl = urlBuild.ToString();
// TCP listener for the HTTP server.
_listener = new TcpListener(IPAddress.Any, Port);
}
static void RunProgram()
{
#if DEBUG
if (Log.IsInfoEnabled) Log.Info("Started.");
#endif
// Get the configuration from the Playdar etc folder.
string etc = Environment.GetEnvironmentVariable("PLAYDAR_ETC");
#if DEBUG
if (Log.IsDebugEnabled)
Log.Debug("PLAYDAR_ETC=\"" + etc + "\"");
#endif
if (string.IsNullOrEmpty(etc))
etc = "etc";
string configFilename = etc + "/spotify.conf";
if (!File.Exists(configFilename))
{
#if DEBUG
if (Log.IsErrorEnabled)
Log.Error("Spotify configuration file not found!");
#endif
return;
}
SimplePropertiesFile config = new SimplePropertiesFile(configFilename);
string username;
string password;
try
{
username = config.Sections["spotify"]["username"];
password = config.Sections["spotify"]["password"];
}
catch (Exception)
{
#if DEBUG
if (Log.IsErrorEnabled)
Log.Error("Couldn't get username or password from config file!");
#endif
return;
}
// Login to Spotify.
Spotify spotify = new Spotify();
bool loginOk = spotify.Login(username, password);
if (loginOk)
{
// Create a lookup table for Spotify links and UUIDs.
SpotifyLinkLookup spotifyLinkLookup = new SpotifyLinkLookup();
// Create an HTTP server for streaming mp3.
HttpStreamingServer streamServer = new HttpStreamingServer(spotify, spotifyLinkLookup);
streamServer.Start();
// Return resolver info.
SendJsonOutput(SpotifyResolverInfo);
// Read JSON queries.
Stream input = Console.OpenStandardInput();
do
{
string json = JsonMsgUtil.ExtractJsonInput(input);
if (String.IsNullOrEmpty(json) || json == "{}")
{
#if DEBUG
if (Log.IsInfoEnabled)
Log.Info("Empty message received. Leaving message receive loop.");
#endif
break;
}
#if DEBUG
if (Log.IsDebugEnabled)
Log.Debug(json);
#endif
JObject o = JObject.Parse(json);
string msgtype = (string)o["_msgtype"];
if (String.IsNullOrEmpty(msgtype))
{
#if DEBUG
if (Log.IsWarnEnabled)
Log.Warn("No message type provided. Leaving receive loop.");
#endif
break;
}
else if (msgtype != "rq")
{
#if DEBUG
if (Log.IsWarnEnabled)
Log.Warn("Unexpected JSON _msgtype! " + msgtype);
#endif
break;
}
#if DEBUG
if (Log.IsDebugEnabled)
Log.Debug("Performing search...");
#endif
// Perform search.
string artist = (string)o["artist"];
string track = (string)o["track"];
string album = (string)o["album"];
List<Track> searchResults = spotify.Search(artist, track, album);
#if DEBUG
if (Log.IsDebugEnabled)
Log.Debug("searchResults.Count = " + searchResults.Count);
#endif
// Build JSON results.
StringBuilder jsonBuild = new StringBuilder();
JsonTextWriter jsonWriter = new JsonTextWriter(new StringWriter(jsonBuild));
jsonWriter.WriteStartObject();
WriteProperty(jsonWriter, "_msgtype", "results");
WriteProperty(jsonWriter, "qid", (string)o["qid"]);
jsonWriter.WritePropertyName("results");
jsonWriter.WriteStartArray();
int i = 0;
foreach (Track r in searchResults)
{
// Limit number of possible results.
if (++i > MaxResults)
{
#if DEBUG
if (Log.IsWarnEnabled)
Log.Warn("Only returning first " + MaxResults +
" of " + searchResults.Count + " results.");
#endif
break;
}
// Obtain a GUID for the stream request.
string sid = spotifyLinkLookup.NewGuid(r.LinkString);
// Build a URL for the track to be delivered.
StringBuilder urlBuild = new StringBuilder();
urlBuild.Append(streamServer.BaseUrl).Append(sid);
string url = urlBuild.ToString();
#if DEBUG
if (Log.IsDebugEnabled)
Log.Debug("Stream URL = " + url);
#endif
// Work out the content length.
#if DEBUG
if (Log.IsDebugEnabled) Log.Debug("Duration: " + r.Duration);
#endif
int seconds = r.Duration / 1000;
// Add track result to JSON response.
jsonWriter.WriteStartObject();
WriteProperty(jsonWriter, "artist", r.Artists[0].Name);
WriteProperty(jsonWriter, "track", r.Name);
WriteProperty(jsonWriter, "album", r.Album.Name);
WriteProperty(jsonWriter, "mimetype", "audio/mpeg");
WriteProperty(jsonWriter, "source", "Spotify");
WriteProperty(jsonWriter, "url", url);
WriteProperty(jsonWriter, "duration", seconds);
WriteProperty(jsonWriter, "score", CalculateScore(r, artist, track, album));
WriteProperty(jsonWriter, "bitrate", LameProgram.BitRate);
jsonWriter.WriteEndObject();
}
jsonWriter.WriteEnd();
jsonWriter.WriteEndObject();
// Send the JSON response to search query.
SendJsonOutput(jsonBuild.ToString());
} while (true);
// Tidy up after stream server.
streamServer.Shutdown();
// Logout of Spotify.
spotify.Logout();
}
}
