freezer/lib/api/deezer.dart

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import 'package:freezer/api/definitions.dart';
import 'package:freezer/api/spotify.dart';
import 'package:freezer/settings.dart';
import 'package:http/http.dart' as http;
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import 'dart:io';
import 'dart:convert';
import 'dart:async';
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DeezerAPI deezerAPI = DeezerAPI();
class DeezerAPI {
DeezerAPI({this.arl});
String arl;
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String token;
String userId;
String userName;
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String favoritesPlaylistId;
String sid;
Future _authorizing;
//Get headers
Map<String, String> get headers => {
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"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36",
"Content-Language": '${settings.deezerLanguage??"en"}-${settings.deezerCountry??'US'}',
"Cache-Control": "max-age=0",
"Accept": "*/*",
"Accept-Charset": "utf-8,ISO-8859-1;q=0.7,*;q=0.3",
"Accept-Language": "${settings.deezerLanguage??"en"}-${settings.deezerCountry??'US'},${settings.deezerLanguage??"en"};q=0.9,en-US;q=0.8,en;q=0.7",
"Connection": "keep-alive",
"Cookie": "arl=${arl}" + ((sid == null) ? '' : '; sid=${sid}')
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};
//Call private API
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Future<Map<dynamic, dynamic>> callApi(String method, {Map<dynamic, dynamic> params, String gatewayInput}) async {
//Generate URL
Uri uri = Uri.https('www.deezer.com', '/ajax/gw-light.php', {
'api_version': '1.0',
'api_token': this.token,
'input': '3',
'method': method,
//Used for homepage
if (gatewayInput != null)
'gateway_input': gatewayInput
});
//Post
http.Response res = await http.post(uri, headers: headers, body: jsonEncode(params));
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dynamic body = jsonDecode(res.body);
//Grab SID
if (method == 'deezer.getUserData') {
for (String cookieHeader in res.headers['set-cookie'].split(';')) {
if (cookieHeader.startsWith('sid=')) {
sid = cookieHeader.split('=')[1];
}
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}
}
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// In case of error "Invalid CSRF token" retrieve new one and retry the same call
if (body['error'].isNotEmpty && body['error'].containsKey('VALID_TOKEN_REQUIRED') && await rawAuthorize()) {
return callApi(method, params: params, gatewayInput: gatewayInput);
}
return body;
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}
Future<Map<dynamic, dynamic>> callPublicApi(String path) async {
http.Response res = await http.get('https://api.deezer.com/' + path);
return jsonDecode(res.body);
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}
//Wrapper so it can be globally awaited
Future authorize() async {
if (_authorizing == null) {
this._authorizing = this.rawAuthorize();
}
return _authorizing;
}
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//Authorize, bool = success
Future<bool> rawAuthorize({Function onError}) async {
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try {
Map<dynamic, dynamic> data = await callApi('deezer.getUserData');
if (data['results']['USER']['USER_ID'] == 0) {
return false;
} else {
this.token = data['results']['checkForm'];
this.userId = data['results']['USER']['USER_ID'].toString();
this.userName = data['results']['USER']['BLOG_NAME'];
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this.favoritesPlaylistId = data['results']['USER']['LOVEDTRACKS_ID'];
return true;
}
} catch (e) {
if (onError != null)
onError(e);
print('Login Error (D): ' + e.toString());
return false;
}
}
//URL/Link parser
Future<DeezerLinkResponse> parseLink(String url) async {
Uri uri = Uri.parse(url);
//https://www.deezer.com/NOTHING_OR_COUNTRY/TYPE/ID
if (uri.host == 'www.deezer.com' || uri.host == 'deezer.com') {
if (uri.pathSegments.length < 2) return null;
DeezerLinkType type = DeezerLinkResponse.typeFromString(uri.pathSegments[uri.pathSegments.length-2]);
return DeezerLinkResponse(type: type, id: uri.pathSegments[uri.pathSegments.length-1]);
}
//Share URL
if (uri.host == 'deezer.page.link' || uri.host == 'www.deezer.page.link') {
http.BaseRequest request = http.Request('HEAD', Uri.parse(url));
request.followRedirects = false;
http.StreamedResponse response = await request.send();
String newUrl = response.headers['location'];
return parseLink(newUrl);
}
//Spotify
if (uri.host == 'open.spotify.com') {
if (uri.pathSegments.length < 2) return null;
String spotifyUri = 'spotify:' + uri.pathSegments.sublist(0, 2).join(':');
try {
//Tracks
if (uri.pathSegments[0] == 'track') {
String id = await spotify.convertTrack(spotifyUri);
return DeezerLinkResponse(type: DeezerLinkType.TRACK, id: id);
}
//Albums
if (uri.pathSegments[0] == 'album') {
String id = await spotify.convertAlbum(spotifyUri);
return DeezerLinkResponse(type: DeezerLinkType.ALBUM, id: id);
}
} catch (e) {}
}
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}
//Search
Future<SearchResults> search(String query) async {
Map<dynamic, dynamic> data = await callApi('deezer.pageSearch', params: {
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'nb': 128,
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'query': query,
'start': 0
});
return SearchResults.fromPrivateJson(data['results']);
}
Future<Track> track(String id) async {
Map<dynamic, dynamic> data = await callApi('song.getListData', params: {'sng_ids': [id]});
return Track.fromPrivateJson(data['results']['data'][0]);
}
//Get album details, tracks
Future<Album> album(String id) async {
Map<dynamic, dynamic> data = await callApi('deezer.pageAlbum', params: {
'alb_id': id,
'header': true,
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'lang': settings.deezerLanguage??'en'
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});
return Album.fromPrivateJson(data['results']['DATA'], songsJson: data['results']['SONGS']);
}
//Get artist details
Future<Artist> artist(String id) async {
Map<dynamic, dynamic> data = await callApi('deezer.pageArtist', params: {
'art_id': id,
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'lang': settings.deezerLanguage??'en',
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});
return Artist.fromPrivateJson(
data['results']['DATA'],
topJson: data['results']['TOP'],
albumsJson: data['results']['ALBUMS'],
highlight: data['results']['HIGHLIGHT']
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);
}
//Get playlist tracks at offset
Future<List<Track>> playlistTracksPage(String id, int start, {int nb = 50}) async {
Map data = await callApi('deezer.pagePlaylist', params: {
'playlist_id': id,
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'lang': settings.deezerLanguage??'en',
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'nb': nb,
'tags': true,
'start': start
});
return data['results']['SONGS']['data'].map<Track>((json) => Track.fromPrivateJson(json)).toList();
}
//Get playlist details
Future<Playlist> playlist(String id, {int nb = 100}) async {
Map<dynamic, dynamic> data = await callApi('deezer.pagePlaylist', params: {
'playlist_id': id,
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'lang': settings.deezerLanguage??'en',
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'nb': nb,
'tags': true,
'start': 0
});
return Playlist.fromPrivateJson(data['results']['DATA'], songsJson: data['results']['SONGS']);
}
//Get playlist with all tracks
Future<Playlist> fullPlaylist(String id) async {
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return await playlist(id, nb: 100000);
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}
//Add track to favorites
Future addFavoriteTrack(String id) async {
await callApi('favorite_song.add', params: {'SNG_ID': id});
}
//Add album to favorites/library
Future addFavoriteAlbum(String id) async {
await callApi('album.addFavorite', params: {'ALB_ID': id});
}
//Add artist to favorites/library
Future addFavoriteArtist(String id) async {
await callApi('artist.addFavorite', params: {'ART_ID': id});
}
//Remove artist from favorites/library
Future removeArtist(String id) async {
await callApi('artist.deleteFavorite', params: {'ART_ID': id});
}
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// Mark track as disliked
Future dislikeTrack(String id) async {
await callApi('favorite_dislike.add', params: {'ID': id, 'TYPE': 'song'});
}
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//Add tracks to playlist
Future addToPlaylist(String trackId, String playlistId, {int offset = -1}) async {
await callApi('playlist.addSongs', params: {
'offset': offset,
'playlist_id': playlistId,
'songs': [[trackId, 0]]
});
}
//Remove track from playlist
Future removeFromPlaylist(String trackId, String playlistId) async {
await callApi('playlist.deleteSongs', params: {
'playlist_id': playlistId,
'songs': [[trackId, 0]]
});
}
//Get users playlists
Future<List<Playlist>> getPlaylists() async {
Map data = await callApi('deezer.pageProfile', params: {
'nb': 100,
'tab': 'playlists',
'user_id': this.userId
});
return data['results']['TAB']['playlists']['data'].map<Playlist>((json) => Playlist.fromPrivateJson(json, library: true)).toList();
}
//Get favorite albums
Future<List<Album>> getAlbums() async {
Map data = await callApi('deezer.pageProfile', params: {
'nb': 50,
'tab': 'albums',
'user_id': this.userId
});
List albumList = data['results']['TAB']['albums']['data'];
List<Album> albums = albumList.map<Album>((json) => Album.fromPrivateJson(json, library: true)).toList();
return albums;
}
//Remove album from library
Future removeAlbum(String id) async {
await callApi('album.deleteFavorite', params: {
'ALB_ID': id
});
}
//Remove track from favorites
Future removeFavorite(String id) async {
await callApi('favorite_song.remove', params: {
'SNG_ID': id
});
}
//Get favorite artists
Future<List<Artist>> getArtists() async {
Map data = await callApi('deezer.pageProfile', params: {
'nb': 40,
'tab': 'artists',
'user_id': this.userId
});
return data['results']['TAB']['artists']['data'].map<Artist>((json) => Artist.fromPrivateJson(json, library: true)).toList();
}
//Get lyrics by track id
Future<Lyrics> lyrics(String trackId) async {
Map data = await callApi('song.getLyrics', params: {
'sng_id': trackId
});
if (data['error'] != null && data['error'].length > 0) return Lyrics.error();
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return Lyrics.fromPrivateJson(data['results']);
}
Future<SmartTrackList> smartTrackList(String id) async {
Map data = await callApi('deezer.pageSmartTracklist', params: {
'smarttracklist_id': id
});
return SmartTrackList.fromPrivateJson(data['results']['DATA'], songsJson: data['results']['SONGS']);
}
Future<List<Track>> flow() async {
Map data = await callApi('radio.getUserRadio', params: {
'user_id': userId
});
return data['results']['data'].map<Track>((json) => Track.fromPrivateJson(json)).toList();
}
//Get homepage/music library from deezer
Future<HomePage> homePage() async {
List grid = ['album', 'artist', 'channel', 'flow', 'playlist', 'radio', 'show', 'smarttracklist', 'track', 'user'];
Map data = await callApi('page.get', gatewayInput: jsonEncode({
"PAGE": "home",
"VERSION": "2.3",
"SUPPORT": {
/*
"deeplink-list": ["deeplink"],
"list": ["episode"],
"grid-preview-one": grid,
"grid-preview-two": grid,
"slideshow": grid,
"message": ["call_onboarding"],
*/
"grid": grid,
"horizontal-grid": grid,
"item-highlight": ["radio"],
"large-card": ["album", "playlist", "show", "video-link"],
"ads": [] //Nope
},
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"LANG": settings.deezerLanguage??'en',
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"OPTIONS": []
}));
return HomePage.fromPrivateJson(data['results']);
}
//Log song listen to deezer
Future logListen(String trackId) async {
await callApi('log.listen', params: {
'params': {
'timestamp': DateTime.now().millisecondsSinceEpoch,
'ts_listen': DateTime.now().millisecondsSinceEpoch,
'type': 1,
'stat': {'seek': 0, 'pause': 0, 'sync': 1},
'media': {'id': trackId, 'type': 'song', 'format': 'MP3_128'}
}
});
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}
Future<HomePage> getChannel(String target) async {
List grid = ['album', 'artist', 'channel', 'flow', 'playlist', 'radio', 'show', 'smarttracklist', 'track', 'user'];
Map data = await callApi('page.get', gatewayInput: jsonEncode({
'PAGE': target,
"VERSION": "2.3",
"SUPPORT": {
/*
"deeplink-list": ["deeplink"],
"list": ["episode"],
"grid-preview-one": grid,
"grid-preview-two": grid,
"slideshow": grid,
"message": ["call_onboarding"],
*/
"grid": grid,
"horizontal-grid": grid,
"item-highlight": ["radio"],
"large-card": ["album", "playlist", "show", "video-link"],
"ads": [] //Nope
},
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"LANG": settings.deezerLanguage??'en',
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"OPTIONS": []
}));
return HomePage.fromPrivateJson(data['results']);
}
//Add playlist to library
Future addPlaylist(String id) async {
await callApi('playlist.addFavorite', params: {
'parent_playlist_id': int.parse(id)
});
}
//Remove playlist from library
Future removePlaylist(String id) async {
await callApi('playlist.deleteFavorite', params: {
'playlist_id': int.parse(id)
});
}
//Delete playlist
Future deletePlaylist(String id) async {
await callApi('playlist.delete', params: {
'playlist_id': id
});
}
//Create playlist
//Status 1 - private, 2 - collaborative
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Future<String> createPlaylist(String title, {String description = "", int status = 1, List<String> trackIds = const []}) async {
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Map data = await callApi('playlist.create', params: {
'title': title,
'description': description,
'songs': trackIds.map<List>((id) => [int.parse(id), trackIds.indexOf(id)]).toList(),
'status': status
});
//Return playlistId
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return data['results'].toString();
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}
//Get part of discography
Future<List<Album>> discographyPage(String artistId, {int start = 0, int nb = 50}) async {
Map data = await callApi('album.getDiscography', params: {
'art_id': int.parse(artistId),
'discography_mode': 'all',
'nb': nb,
'start': start,
'nb_songs': 30
});
return data['results']['data'].map<Album>((a) => Album.fromPrivateJson(a)).toList();
}
Future<List> searchSuggestions(String query) async {
Map data = await callApi('search_getSuggestedQueries', params: {
'QUERY': query
});
return data['results']['SUGGESTION'].map((s) => s['QUERY']).toList();
}
//Get smart radio for artist id
Future<List<Track>> smartRadio(String artistId) async {
Map data = await callApi('smart.getSmartRadio', params: {
'art_id': int.parse(artistId)
});
return data['results']['data'].map<Track>((t) => Track.fromPrivateJson(t)).toList();
}
//Update playlist metadata, status = see createPlaylist
Future updatePlaylist(String id, String title, String description, {int status = 1}) async {
await callApi('playlist.update', params: {
'description': description,
'title': title,
'playlist_id': int.parse(id),
'status': status,
'songs': []
});
}
//Get shuffled library
Future<List<Track>> libraryShuffle({int start=0}) async {
Map data = await callApi('tracklist.getShuffledCollection', params: {
'nb': 50,
'start': start
});
return data['results']['data'].map<Track>((t) => Track.fromPrivateJson(t)).toList();
}
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// Get similar tracks for track with id [trackId]
Future<List<Track>> playMix(String trackId) async {
Map data = await callApi('song.getContextualTrackMix', params: {
'sng_ids': [trackId]
});
return data['results']['data'].map<Track>((t) => Track.fromPrivateJson(t)).toList();
}
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}