1 files changed, 0 insertions, 142 deletions
diff --git a/src/server/YoutubeFallback.hx b/src/server/YoutubeFallback.hx
deleted file mode 100644
index 5360283..0000000
--- a/src/server/YoutubeFallback.hx
+++ /dev/null
@@ -1,142 +0,0 @@
-package server;
-
-import haxe.Json;
-import js.lib.Function;
-import js.lib.Object;
-import js.lib.Promise;
-import js.node.Https.Https;
-import js.node.Https.HttpsRequestOptions;
-import js.node.url.URLSearchParams;
-import utils.YoutubeUtils;
-
-class YoutubeFallback {
-	static function httpsGet(
-		url:String,
-		?options:HttpsRequestOptions,
-		?callback:(status:Int, data:String) -> Void
-	):Void {
-		final request = Https.get(url, options, res -> {
-			var data = "";
-			res.on("data", chunk -> data += chunk.toString());
-			res.on("end", () -> callback(res.statusCode, data));
-		});
-		request.on("error", err -> {
-			trace(url);
-			trace("request error: ", err);
-		});
-	}
-
-	public static function resolvePlayerResponse(watchHtml:String):String {
-		if (watchHtml == null) return "";
-		final resReg = ~/ytInitialPlayerResponse = (.*)}}};/;
-		var matches = resReg.match(watchHtml);
-		return matches ? resReg.matched(1) + "}}}" : "";
-	}
-
-	public static function resoleM3U8Link(watchHtml:String):Null<String> {
-		if (watchHtml == null) return null;
-		final hlsReg = ~/hlsManifestUrl":"(.*\/file\/index\.m3u8)/;
-		return hlsReg.match(watchHtml) ? hlsReg.matched(1) : null;
-	}
-
-	public static function buildDecoder(watchHtml:String, callback:(decoder:(cipher:String) -> String) -> Void):Void {
-		if (watchHtml == null) return callback(null);
-
-		final jsFileUrlReg = ~/\/s\/player\/[A-Za-z0-9]+\/[A-Za-z0-9_.]+\/[A-Za-z0-9_]+\/base\.js/;
-		if (!jsFileUrlReg.match(watchHtml)) return callback(null);
-
-		final url = "https://www.youtube.com" + jsFileUrlReg.matched(0);
-		httpsGet(url, {}, (status, jsFileContent) -> {
-			final funcReg = ~/function.*\.split\(""\).*\.join\(""\)}/;
-			if (!funcReg.match(jsFileContent)) return callback(null);
-
-			final decodeFunction = funcReg.matched(0);
-			final varNameReg = ~/\.split\(""\);([a-zA-Z0-9]+)\./i;
-			if (!varNameReg.match(decodeFunction)) return callback(null);
-
-			final varStartIndex = jsFileContent.indexOf("var " + varNameReg.matched(1) + "={");
-			if (varStartIndex < 0) return callback(null);
-
-			final varEndIndex = jsFileContent.indexOf("}};", varStartIndex);
-			if (varEndIndex < 0) return callback(null);
-
-			final varDeclares = jsFileContent.substring(varStartIndex, varEndIndex + 3);
-			if (varDeclares.length == 0) return callback(null);
-
-			callback(signatureCipher -> {
-				final params = new URLSearchParams(signatureCipher);
-				final obj = Object.fromEntries(params);
-				final signature = obj.s;
-				final signatureParam = obj.sp ?? "signature";
-				final url = obj.url;
-				final decodedSignature = new Function('
-					"use strict";
-					$varDeclares
-					return ($decodeFunction)("$signature");
-				').call(null);
-				return '$url&$signatureParam=${untyped encodeURIComponent(decodedSignature)}';
-			});
-		});
-	}
-
-	public static function getInfo(url:String, callback:(info:Null<YouTubeVideoInfo>) -> Void):Void {
-		final videoId = YoutubeUtils.extractVideoId(url);
-		if (videoId.length == 0) {
-			trace("youtube videoId is not found");
-			return callback(null);
-		}
-
-		final url = 'https://www.youtube.com/watch?v=$videoId';
-		httpsGet(url, {}, (status, data) -> {
-			if (status != 200 || data.length == 0) {
-				trace("Cannot get youtube video response");
-				return callback(null);
-			}
-
-			final ytInitialPlayerResponse = resolvePlayerResponse(data);
-			final parsedResponse = Json.parse(ytInitialPlayerResponse);
-			final streamingData:YouTubeVideoInfo = parsedResponse.streamingData ?? cast {};
-			streamingData.formats ??= [];
-			streamingData.adaptiveFormats ??= [];
-			var formats:Array<YoutubeVideoFormat> = streamingData.formats.concat(streamingData.adaptiveFormats);
-
-			final promises:Array<Promise<Any>> = [];
-
-			final isEncryptedVideo = formats.exists(it -> it.signatureCipher != null);
-			if (isEncryptedVideo) {
-				final promise = new Promise((resolve, reject) -> {
-					buildDecoder(data, decoder -> {
-						if (decoder != null) {
-							formats = formats.map(item -> {
-								if (item.url != null || item.signatureCipher == null) return item;
-
-								item.url = decoder(item.signatureCipher);
-								item.signatureCipher = null;
-								return item;
-							});
-						}
-						resolve(null);
-					});
-				});
-				promises.push(promise);
-			}
-
-			Promise.all(promises).then(_ -> {
-				final result:YouTubeVideoInfo = {
-					videoDetails: parsedResponse.videoDetails ?? cast {},
-					formats: formats.filter(format -> format.url != null)
-				};
-				if (result.videoDetails.isLiveContent) {
-					final m3u8Link = resoleM3U8Link(data);
-					try {
-						result.liveData = {
-							manifestUrl: m3u8Link,
-							// data: m3u8Parser.getResult()
-						};
-					}
-				}
-				callback(result);
-			});
-		});
-	}
-}