private static byte[] GetApplicationKey(SessionConfig config)
{
ThrowHelper.ThrowIfNull(config, "config");
if (string.IsNullOrEmpty(config.ApplicationKeyFile) && config.ApplicationKey == null)
{
throw new ArgumentException("both ApplicationKey and ApplicationKeyFile are unset in SessionConfig");
}
byte[] key = config.ApplicationKey;
if (key == null)
{
key = File.ReadAllBytes(config.ApplicationKeyFile);
}
return(key);
}
public static Session Create(SessionConfig sessionConfig)
{
Session session = new Session();
IntPtr applicationKeyHandle = IntPtr.Zero;
IntPtr callbacksHandle = IntPtr.Zero;
try
{
LibSpotify.sp_session_config config = new LibSpotify.sp_session_config();
config.api_version = sessionConfig.ApiVersion;
byte[] key = GetApplicationKey(sessionConfig);
applicationKeyHandle = Marshal.AllocHGlobal(key.Length);
Marshal.Copy(key, 0, applicationKeyHandle, key.Length);
config.application_key = applicationKeyHandle;
config.application_key_size = new IntPtr(key.Length);
config.cache_location = sessionConfig.CacheLocation;
config.compress_playlists = sessionConfig.CompressPlaylists;
config.device_id = sessionConfig.DeviceId;
config.dont_dave_metadata_for_playlists = sessionConfig.DontSaveMetadatForPlaylists;
config.initially_unload_playlist = sessionConfig.InitiallyUnloadPlaylists;
config.proxy = sessionConfig.Proxy;
config.proxy_password = sessionConfig.ProxyPassword;
config.proxy_username = sessionConfig.ProxyUserName;
config.settings_location = sessionConfig.SettingsLocation;
config.tracefile = sessionConfig.TraceFile;
config.user_agent = sessionConfig.UserAgent;
config.userdata = IntPtr.Zero;
session._callbacks = new LibSpotify.sp_session_callbacks();
session._callbacks.logged_in = session.OnLoggedInEvent;
session._callbacks.logged_out = session.OnLoggedOutEvent;
session._callbacks.notify_main_thread = session.OnNotifyMainThread;
session._callbacks.log_message = session.OnLogMessage;
session._callbacks.metadata_updated = session.OnMetadataUpdated;
session._callbacks.connection_error = session.OnConnectionError;
session._callbacks.message_to_user = session.OnMessageToUser;
session._callbacks.music_delivery = session.OnMusicDelivery;
session._callbacks.play_token_lost = session.OnPlayTokenLost;
session._callbacks.log_message = session.OnLogMessage;
session._callbacks.end_of_track = session.OnEndOfTrack;
session._callbacks.streaming_error = session.OnStreamingError;
session._callbacks.userinfo_updated = session.OnUserInfoUpdated;
session._callbacks.start_playback = session.OnStartPlayback;
session._callbacks.stop_playback = session.OnStopPlayback;
session._callbacks.offline_status_updated = session.OnOfflineStatusUpdated;
session._callbacks.get_audio_buffer_stats = session.OnGetAudioBufferStats;
session._callbacks.offline_error = session.OnOfflineError;
session._callbacks.credentials_blob_updated = session.OnCredentialsBlobUpdated;
session._callbacks.connectionstate_updated = session.OnConnectionStateUpdated;
session._callbacks.scrobble_error = session.OnScrobbleError;
session._callbacks.private_session_mode_changed = session.OnPrivateSessionModeChanged;
callbacksHandle = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(LibSpotify.sp_session_callbacks)));
Marshal.StructureToPtr(session._callbacks, callbacksHandle, false);
config.callbacks = callbacksHandle;
IntPtr ptr = IntPtr.Zero;
// This call results in a callback to OnNotifyMainThread, but the
// actual _handle has not been set yet.
session._running = true;
ThrowHelper.ThrowIfError(LibSpotify.sp_session_create_r(ref config, ref ptr));
session.Handle = ptr;
}
finally
{
if (applicationKeyHandle != IntPtr.Zero)
{
Marshal.FreeHGlobal(applicationKeyHandle);
}
if (callbacksHandle != IntPtr.Zero)
{
Marshal.FreeHGlobal(callbacksHandle);
}
}
return(session);
}