mirror of
https://github.com/KRTirtho/spotube.git
synced 2025-09-13 07:55:18 +00:00
364 lines
12 KiB
Dart
364 lines
12 KiB
Dart
import 'dart:convert';
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import 'dart:io';
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import 'package:html/dom.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import 'package:spotify/spotify.dart';
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import 'package:spotube/components/Home/Home.dart';
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import 'package:spotube/models/LocalStorageKeys.dart';
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import 'package:spotube/models/Logger.dart';
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import 'package:http/http.dart' as http;
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import 'package:spotube/models/LyricsModels.dart';
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import 'package:spotube/models/SpotubeTrack.dart';
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import 'package:spotube/models/generated_secrets.dart';
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import 'package:spotube/provider/Auth.dart';
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import 'package:spotube/utils/primitive_utils.dart';
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import 'package:collection/collection.dart';
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import 'package:html/parser.dart' as parser;
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import 'package:url_launcher/url_launcher.dart';
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abstract class ServiceUtils {
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static final logger = getLogger("ServiceUtils");
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static String clearArtistsOfTitle(String title, List<String> artists) {
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return title
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.replaceAll(RegExp(artists.join("|"), caseSensitive: false), "")
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.trim();
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}
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static String getTitle(
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String title, {
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List<String> artists = const [],
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bool onlyCleanArtist = false,
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}) {
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final match = RegExp(r"(?<=\().+?(?=\))").firstMatch(title)?.group(0);
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final artistInBracket =
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artists.any((artist) => match?.contains(artist) ?? false);
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if (artistInBracket) {
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title = title.replaceAll(
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RegExp(" *\\([^)]*\\) *"),
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'',
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);
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}
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title = clearArtistsOfTitle(title, artists);
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if (onlyCleanArtist) {
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artists = [];
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}
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return "$title ${artists.map((e) => e.replaceAll(",", " ")).join(", ")}"
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.toLowerCase()
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.replaceAll(RegExp(" *\\[[^\\]]*]"), '')
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.replaceAll(RegExp("feat.|ft."), '')
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.replaceAll(RegExp("\\s+"), ' ')
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.trim();
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}
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static Future<String?> extractLyrics(Uri url) async {
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try {
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var response = await http.get(url);
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Document document = parser.parse(response.body);
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var lyrics = document.querySelector('div.lyrics')?.text.trim();
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if (lyrics == null) {
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lyrics = "";
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document
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.querySelectorAll("div[class^=\"Lyrics__Container\"]")
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.forEach((element) {
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if (element.text.trim().isNotEmpty) {
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var snippet = element.innerHtml.replaceAll("<br>", "\n").replaceAll(
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RegExp("<(?!\\s*br\\s*\\/?)[^>]+>", caseSensitive: false),
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"",
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);
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var el = document.createElement("textarea");
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el.innerHtml = snippet;
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lyrics = "$lyrics${el.text.trim()}\n\n";
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}
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});
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}
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return lyrics;
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} catch (e, stack) {
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logger.e("extractLyrics", e, stack);
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rethrow;
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}
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}
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static Future<List?> searchSong(
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String title,
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List<String> artist, {
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String? apiKey,
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bool optimizeQuery = false,
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bool authHeader = false,
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}) async {
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try {
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if (apiKey == "" || apiKey == null) {
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apiKey = PrimitiveUtils.getRandomElement(lyricsSecrets);
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}
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const searchUrl = 'https://api.genius.com/search?q=';
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String song =
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optimizeQuery ? getTitle(title, artists: artist) : "$title $artist";
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String reqUrl = "$searchUrl${Uri.encodeComponent(song)}";
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Map<String, String> headers = {"Authorization": 'Bearer $apiKey'};
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final response = await http.get(
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Uri.parse(authHeader ? reqUrl : "$reqUrl&access_token=$apiKey"),
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headers: authHeader ? headers : null,
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);
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Map data = jsonDecode(response.body)["response"];
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if (data["hits"]?.length == 0) return null;
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List results = data["hits"]?.map((val) {
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return <String, dynamic>{
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"id": val["result"]["id"],
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"full_title": val["result"]["full_title"],
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"albumArt": val["result"]["song_art_image_url"],
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"url": val["result"]["url"],
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"author": val["result"]["primary_artist"]["name"],
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};
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}).toList();
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return results;
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} catch (e, stack) {
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logger.e("searchSong", e, stack);
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rethrow;
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}
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}
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static Future<String?> getLyrics(
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String title,
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List<String> artists, {
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required String apiKey,
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bool optimizeQuery = false,
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bool authHeader = false,
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}) async {
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try {
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final results = await searchSong(
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title,
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artists,
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apiKey: apiKey,
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optimizeQuery: optimizeQuery,
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authHeader: authHeader,
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);
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if (results == null) return null;
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title = getTitle(
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title,
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artists: artists,
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onlyCleanArtist: true,
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).trim();
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final ratedLyrics = results.map((result) {
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final gTitle = (result["full_title"] as String).toLowerCase();
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int points = 0;
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final hasTitle = gTitle.contains(title);
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final hasAllArtists =
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artists.every((artist) => gTitle.contains(artist.toLowerCase()));
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final String lyricAuthor = result["author"].toLowerCase();
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final fromOriginalAuthor =
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lyricAuthor.contains(artists.first.toLowerCase());
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for (final criteria in [
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hasTitle,
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hasAllArtists,
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fromOriginalAuthor,
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]) {
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if (criteria) points++;
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}
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return {"result": result, "points": points};
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}).sorted(
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(a, b) => ((a["points"] as int).compareTo(a["points"] as int)),
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);
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final worthyOne = ratedLyrics.first["result"];
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String? lyrics = await extractLyrics(Uri.parse(worthyOne["url"]));
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return lyrics;
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} catch (e, stack) {
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logger.e("getLyrics", e, stack);
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return null;
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}
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}
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static Future<String?> connectIpc(String authUri, String redirectUri) async {
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try {
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logger.i("[connectIpc][Launching]: $authUri");
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await launchUrl(
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Uri.parse(authUri),
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mode: LaunchMode.externalApplication,
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);
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HttpServer server = await HttpServer.bind(
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InternetAddress.loopbackIPv4,
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4304,
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shared: true,
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);
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logger.i("[connectIpc] Server started");
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await for (HttpRequest request in server) {
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if (request.uri.path == "/auth/spotify/callback" &&
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request.method == "GET") {
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String? code = request.uri.queryParameters["code"];
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if (code != null) {
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request.response
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..statusCode = HttpStatus.ok
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..write("Authentication successful. Now Go back to Spotube")
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..close();
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return "$redirectUri?code=$code";
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} else {
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request.response
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..statusCode = HttpStatus.forbidden
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..write("Authorization failed start over!")
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..close();
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throw Exception("No code provided");
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}
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}
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}
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} catch (e, stack) {
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logger.e("connectIpc", e, stack);
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rethrow;
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}
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return null;
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}
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static const authRedirectUri = "http://localhost:4304/auth/spotify/callback";
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static Future<void> oauthLogin(Auth auth,
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{required String clientId, required String clientSecret}) async {
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try {
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String? accessToken;
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String? refreshToken;
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DateTime? expiration;
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final credentials = SpotifyApiCredentials(clientId, clientSecret);
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final grant = SpotifyApi.authorizationCodeGrant(credentials);
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final authUri = grant.getAuthorizationUrl(Uri.parse(authRedirectUri),
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scopes: spotifyScopes);
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final responseUri = await connectIpc(authUri.toString(), authRedirectUri);
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SharedPreferences localStorage = await SharedPreferences.getInstance();
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if (responseUri != null) {
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final SpotifyApi spotify =
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SpotifyApi.fromAuthCodeGrant(grant, responseUri);
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final credentials = await spotify.getCredentials();
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if (credentials.accessToken != null) {
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accessToken = credentials.accessToken;
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await localStorage.setString(
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LocalStorageKeys.accessToken, credentials.accessToken!);
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}
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if (credentials.refreshToken != null) {
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refreshToken = credentials.refreshToken;
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await localStorage.setString(
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LocalStorageKeys.refreshToken, credentials.refreshToken!);
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}
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if (credentials.expiration != null) {
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expiration = credentials.expiration;
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await localStorage.setString(LocalStorageKeys.expiration,
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credentials.expiration?.toString() ?? "");
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}
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}
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await localStorage.setString(LocalStorageKeys.clientId, clientId);
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await localStorage.setString(
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LocalStorageKeys.clientSecret,
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clientSecret,
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);
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auth.setAuthState(
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clientId: clientId,
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clientSecret: clientSecret,
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accessToken: accessToken,
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refreshToken: refreshToken,
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expiration: expiration,
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);
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} catch (e, stack) {
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logger.e("oauthLogin", e, stack);
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rethrow;
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}
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}
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static const baseUri = "https://www.rentanadviser.com/subtitles";
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static Future<SubtitleSimple?> getTimedLyrics(SpotubeTrack track) async {
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final artistNames =
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track.artists?.map((artist) => artist.name!).toList() ?? [];
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final query = getTitle(
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track.name!,
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artists: artistNames,
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);
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logger.v("[Searching Subtitle] $query");
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final searchUri = Uri.parse("$baseUri/subtitles4songs.aspx").replace(
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queryParameters: {"q": query},
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);
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final res = await http.get(searchUri);
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final document = parser.parse(res.body);
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final results =
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document.querySelectorAll("#tablecontainer table tbody tr td a");
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final rateSortedResults = results.map((result) {
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final title = result.text.trim().toLowerCase();
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int points = 0;
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final hasAllArtists = track.artists
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?.map((artist) => artist.name!)
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.every((artist) => title.contains(artist.toLowerCase())) ??
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false;
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final hasTrackName = title.contains(track.name!.toLowerCase());
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final isNotLive = !PrimitiveUtils.containsTextInBracket(title, "live");
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final exactYtMatch = title == track.ytTrack.title.toLowerCase();
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if (exactYtMatch) points = 7;
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for (final criteria in [hasTrackName, hasAllArtists, isNotLive]) {
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if (criteria) points++;
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}
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return {"result": result, "points": points};
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}).sorted((a, b) => (b["points"] as int).compareTo(a["points"] as int));
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// not result was found at all
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if (rateSortedResults.first["points"] == 0) {
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logger.e("[Subtitle not found] ${track.name}");
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return Future.error("Subtitle lookup failed", StackTrace.current);
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}
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final topResult = rateSortedResults.first["result"] as Element;
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final subtitleUri =
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Uri.parse("$baseUri/${topResult.attributes["href"]}&type=lrc");
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logger.v("[Selected subtitle] ${topResult.text} | $subtitleUri");
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final lrcDocument = parser.parse((await http.get(subtitleUri)).body);
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final lrcList = lrcDocument
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.querySelector("#ctl00_ContentPlaceHolder1_lbllyrics")
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?.innerHtml
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.replaceAll(RegExp(r'<h3>.*</h3>'), "")
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.split("<br>")
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.map((e) {
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e = e.trim();
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final regexp = RegExp(r'\[.*\]');
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final timeStr = regexp
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.firstMatch(e)
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?.group(0)
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?.replaceAll(RegExp(r'\[|\]'), "")
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.trim()
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.split(":");
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final minuteSeconds = timeStr?.last.split(".");
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return LyricSlice(
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time: Duration(
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minutes: int.parse(timeStr?.first ?? "0"),
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seconds: int.parse(minuteSeconds?.first ?? "0"),
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milliseconds: int.parse(minuteSeconds?.last ?? "0"),
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),
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text: e.split(regexp).last);
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}).toList() ??
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[];
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final subtitle = SubtitleSimple(
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name: topResult.text.trim(),
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uri: subtitleUri,
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lyrics: lrcList,
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rating: rateSortedResults.first["points"] as int,
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);
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return subtitle;
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}
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}
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