fix: handle music playlist/album not found

src/client/music_playlist.rs

@@ -151,7 +151,25 @@ impl MapResponse<MusicPlaylist> for response::MusicPlaylist {
         self,
         ctx: &MapRespCtx<'_>,
     ) -> Result<MapResult<MusicPlaylist>, ExtractionError> {
-        let (header, music_contents) = match self.contents {
+        let contents = match self.contents {
+            Some(c) => c,
+            None => {
+                if self
+                    .microformat
+                    .map(|m| m.microformat_data_renderer.noindex)
+                    .unwrap_or_default()
+                {
+                    return Err(ExtractionError::NotFound {
+                        id: ctx.id.to_owned(),
+                        msg: "no contents".into(),
+                    });
+                } else {
+                    return Err(ExtractionError::InvalidData("no contents".into()));
+                }
+            }
+        };
+
+        let (header, music_contents) = match contents {
             response::music_playlist::Contents::SingleColumnBrowseResultsRenderer(c) => (
                 self.header,
                 c.contents
@@ -338,7 +356,25 @@ impl MapResponse<MusicPlaylist> for response::MusicPlaylist {
 
 impl MapResponse<MusicAlbum> for response::MusicPlaylist {
     fn map_response(self, ctx: &MapRespCtx<'_>) -> Result<MapResult<MusicAlbum>, ExtractionError> {
-        let (header, sections) = match self.contents {
+        let contents = match self.contents {
+            Some(c) => c,
+            None => {
+                if self
+                    .microformat
+                    .map(|m| m.microformat_data_renderer.noindex)
+                    .unwrap_or_default()
+                {
+                    return Err(ExtractionError::NotFound {
+                        id: ctx.id.to_owned(),
+                        msg: "no contents".into(),
+                    });
+                } else {
+                    return Err(ExtractionError::InvalidData("no contents".into()));
+                }
+            }
+        };
+
+        let (header, sections) = match contents {
             response::music_playlist::Contents::SingleColumnBrowseResultsRenderer(c) => (
                 self.header,
                 c.contents
@@ -454,10 +490,11 @@ impl MapResponse<MusicAlbum> for response::MusicPlaylist {
             }
         }
 
-        let playlist_id = self.microformat.and_then(|mf| {
-            mf.microformat_data_renderer
-                .url_canonical
-                .strip_prefix("https://music.youtube.com/playlist?list=")
+        let playlist_id = self
+            .microformat
+            .and_then(|mf| mf.microformat_data_renderer.url_canonical)
+            .and_then(|x| {
+                x.strip_prefix("https://music.youtube.com/playlist?list=")
                     .map(str::to_owned)
             });
         let (playlist_id, artist_id) = header

src/client/response/music_playlist.rs

@@ -16,7 +16,7 @@ use super::{
 #[derive(Debug, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub(crate) struct MusicPlaylist {
-    pub contents: Contents,
+    pub contents: Option<Contents>,
     pub header: Option<Header>,
     #[serde(default)]
     #[serde_as(as = "DefaultOnError")]
@@ -172,5 +172,7 @@ pub(crate) struct Microformat {
 #[derive(Debug, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub(crate) struct MicroformatData {
-    pub url_canonical: String,
+    pub url_canonical: Option<String>,
+    #[serde(default)]
+    pub noindex: bool,
 }

src/deobfuscate.rs

@@ -654,6 +654,16 @@ c[36](c[8],c[32]),c[20](c[25],c[10]),c[2](c[22],c[8]),c[32](c[20],c[16]),c[32](c
         );
     }
 
+    #[test]
+    fn t_extract_js_fn_outside_vars4() {
+        let base_js = "let a0=123456;let a1=function(a){return a};let Wka = function(d){var x=1+2+a1();return x;}";
+        let res = extract_js_fn(base_js, "Wka").unwrap();
+        assert_eq!(
+            res,
+            "var a1=function(a){return a}; var Wka = function(d){var x=1+2+a1();return x;};"
+        );
+    }
+
     #[test]
     fn t_get_nsig_fn() {
         let res = get_nsig_fn(&TEST_JS).unwrap();