More Validation methods added

play-dl/YouTube/utils/extractor.ts

@@ -5,12 +5,22 @@ import { PlayList } from '../classes/Playlist'
 
 const DEFAULT_API_KEY = "AIzaSyAO_FJ2SlqU8Q4STEHLGCilw_Y9_11qcW8";
 const video_pattern = /^((?:https?:)?\/\/)?(?:(?:www|m)\.)?((?:youtube\.com|youtu.be))(\/(?:[\w\-]+\?v=|embed\/|v\/)?)([\w\-]+)(\S+)?$/;
+const playlist_pattern = /^((?:https?:)?\/\/)?(?:(?:www|m)\.)?(youtube\.com)\/(?:(playlist|watch))(.*)?((\?|\&)list=)/
 
 export function validate(url : string): boolean{
     if(!url.match(video_pattern)) return false
     else return true
 }
 
+export function validate_playlist(url : string): boolean{
+    if(!url.match(playlist_pattern)) return false
+    let Playlist_id = url.split('list=')[1].split('&')[0]
+    if(Playlist_id.length !== 34 || !Playlist_id.startsWith('PL')){
+        return false
+    }
+    return true
+}
+
 export async function video_basic_info(url : string){
         if(!url.match(video_pattern)) throw new Error('This is not a YouTube URL')
         let video_id : string;

play-dl/YouTube/utils/index.ts

@@ -1 +1 @@
-export { video_basic_info, video_info, playlist_info, validate } from './extractor'
+export { video_basic_info, video_info, playlist_info, validate, validate_playlist } from './extractor'

play-dl/index.ts

@@ -1 +1 @@
-export { playlist_info, video_basic_info, video_info, search, stream, stream_from_info, validate } from "./YouTube";
+export { playlist_info, video_basic_info, video_info, search, stream, stream_from_info, validate, validate_playlist } from "./YouTube";