Raw youtube fallback for unavailable videos

Also:
- fix `tryLocalIp` replacement (NAT workaround)
- improve proxy headers a bit
- use json2object fork for better generated diffs

1 files changed, 83 insertions, 0 deletions

diff --git a/src/utils/YoutubeUtils.hx b/src/utils/YoutubeUtils.hx
new file mode 100644
index 0000000..7429565
--- /dev/null
+++ b/src/utils/YoutubeUtils.hx
@@ -0,0 +1,83 @@
+package utils;
+
+typedef YoutubeVideoDetails = {
+	viewCount:String,
+	videoId:String,
+	title:String,
+	thumbnail:{
+		thumbnails:Array<{
+			url:String,
+			width:Int,
+			height:Int,
+		}>
+	},
+	shortDescription:String,
+	lengthSeconds:String,
+	keywords:Array<String>,
+	isUnpluggedCorpus:Bool,
+	isPrivate:Bool,
+	isOwnerViewing:Bool,
+	isLiveContent:Bool,
+	isCrawlable:Bool,
+	channelId:String,
+	author:String,
+	allowRatings:Bool
+}
+
+typedef YoutubeVideoFormat = {
+	?signatureCipher:String,
+	itag:Int,
+	width:Int,
+	height:Int,
+	url:String,
+	qualityLabel:String, // 240p, 1080p, etc
+	quality:String,
+	projectionType:String,
+	mimeType:String,
+	lastModified:String,
+	bitrate:Int,
+	approxDurationMs:String,
+	?initRange:{start:Int, end:Int},
+	?indexRange:{start:Int, end:Int},
+	?audioQuality:String, // AUDIO_QUALITY_LOW
+	?audioSampleRate:Int,
+	?audioChannels:Int
+}
+
+typedef YouTubeVideoInfo = {
+	public var videoDetails:YoutubeVideoDetails;
+	public var ?formats:Array<YoutubeVideoFormat>;
+	public var ?adaptiveFormats:Array<YoutubeVideoFormat>;
+	public var ?liveData:{
+		manifestUrl:String,
+	};
+}
+
+class YoutubeUtils {
+	static final matchId = ~/youtube\.com.*v=([A-z0-9_-]+)/;
+	static final matchShort = ~/youtu\.be\/([A-z0-9_-]+)/;
+	static final matchShorts = ~/youtube\.com\/shorts\/([A-z0-9_-]+)/;
+	static final matchEmbed = ~/youtube\.com\/embed\/([A-z0-9_-]+)/;
+	static final matchPlaylist = ~/youtube\.com.*list=([A-z0-9_-]+)/;
+
+	public static function extractVideoId(url:String):String {
+		if (matchId.match(url)) {
+			return matchId.matched(1);
+		}
+		if (matchShort.match(url)) {
+			return matchShort.matched(1);
+		}
+		if (matchShorts.match(url)) {
+			return matchShorts.matched(1);
+		}
+		if (matchEmbed.match(url)) {
+			return matchEmbed.matched(1);
+		}
+		return "";
+	}
+
+	public static function extractPlaylistId(url:String):String {
+		if (!matchPlaylist.match(url)) return "";
+		return matchPlaylist.matched(1);
+	}
+}