91 lines
3.5 KiB
Dart
91 lines
3.5 KiB
Dart
import 'dart:convert';
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import 'package:html/dom.dart';
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import 'package:html/parser.dart';
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import 'package:http_interceptor/http_interceptor.dart';
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import 'package:mangayomi/models/video.dart';
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import 'package:mangayomi/services/http/m_client.dart';
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import 'package:mangayomi/utils/extensions/dom_extensions.dart';
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import 'package:mangayomi/utils/extensions/string_extensions.dart';
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import 'package:path/path.dart' as path;
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class VoeExtractor {
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final InterceptedClient client =
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MClient.init(reqcopyWith: {'useDartHttpClient': true});
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final linkRegex = RegExp(
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r'(http|https)://([\w_-]+(?:\.[\w_-]+)+)([\w.,@?^=%&:/~+#-]*[\w@?^=%&/~+#-])');
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final base64Regex = RegExp(r"'.*'");
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final RegExp scriptBase64Regex = RegExp(
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r"(let|var)\s+\w+\s*=\s*'(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)';");
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Future<List<Video>> videosFromUrl(String url, String? prefix) async {
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try {
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Document document = parse((await client.get(Uri.parse(url))).body);
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var scriptElement = document.selectFirst("script");
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if (scriptElement?.text
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.contains("if (typeof localStorage !== 'undefined')") ??
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false) {
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var originalUrl = scriptElement?.text
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.substringAfter("window.location.href = '")
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.substringBefore("';");
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if (originalUrl == null) {
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return [];
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}
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document = parse((await client.get(Uri.parse(originalUrl))).body);
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}
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var alternativeScript = document
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.select('script')
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?.where(
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(script) => scriptBase64Regex.hasMatch(script.text),
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)
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.toList();
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Element? script = document.selectFirst(
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"script:contains(const sources), script:contains(var sources), script:contains(wc0)");
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if (script == null) {
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if (alternativeScript?.isNotEmpty ?? false) {
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script = alternativeScript!.first;
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} else {
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return [];
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}
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}
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final scriptContent = script.text;
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String playlistUrl = "";
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if (scriptContent.contains('sources')) {
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final link =
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scriptContent.substringAfter("hls': '").substringBefore("'");
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playlistUrl =
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linkRegex.hasMatch(link) ? link : utf8.decode(base64.decode(link));
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} else if (scriptContent.contains('wc0') || alternativeScript != null) {
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final base64Match = base64Regex.firstMatch(scriptContent)!.group(0)!;
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final decoded = utf8.decode(base64.decode(base64Match));
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playlistUrl = json.decode(alternativeScript != null
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? String.fromCharCodes(decoded.runes.toList().reversed)
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: decoded)['file'];
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} else {
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return [];
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}
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final uri = Uri.parse(playlistUrl);
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final m3u8Host = "${uri.scheme}://${uri.host}${path.dirname(uri.path)}";
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final masterPlaylistResponse = await client.get(uri);
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final masterPlaylist = masterPlaylistResponse.body;
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const separator = "#EXT-X-STREAM-INF";
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return masterPlaylist
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.substringAfter(separator)
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.split(separator)
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.map((it) {
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final resolution =
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"${it.substringAfter("RESOLUTION=").substringBefore("\n").substringAfter("x").substringBefore(",")}p";
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final line = it.substringAfter("\n").substringBefore("\n");
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final videoUrl = line.startsWith("http")
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? line
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: "$m3u8Host/${line.replaceFirst("/", "")}";
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return Video(videoUrl, '${prefix ?? ""}Voe: $resolution', videoUrl);
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}).toList();
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} catch (_) {
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return [];
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}
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}
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}
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