411 lines
12 KiB
Rust
411 lines
12 KiB
Rust
use anyhow::{anyhow, Context, Result};
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use reqwest::Method;
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use serde::Serialize;
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use crate::{
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model::{Channel, Playlist, Thumbnail, Video},
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serializer::text::{PageType, TextLink},
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util,
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};
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use super::{response, ClientType, ContextYT, RustyTube};
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#[derive(Clone, Debug, Serialize)]
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#[serde(rename_all = "camelCase")]
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struct QPlaylist {
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context: ContextYT,
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browse_id: String,
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}
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#[derive(Clone, Debug, Serialize)]
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#[serde(rename_all = "camelCase")]
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struct QPlaylistCont {
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context: ContextYT,
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continuation: String,
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}
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impl RustyTube {
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pub async fn get_playlist(&self, playlist_id: &str) -> Result<Playlist> {
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let client = self.get_ytclient(ClientType::Desktop);
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let context = client.get_context(true).await;
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let request_body = QPlaylist {
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context,
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browse_id: "VL".to_owned() + playlist_id,
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};
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let resp = client
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.request_builder(Method::POST, "browse")
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.await
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.json(&request_body)
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.send()
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.await?
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.error_for_status()?;
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let resp_body = resp.text().await?;
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let playlist_response =
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serde_json::from_str::<response::Playlist>(&resp_body).context(resp_body)?;
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map_playlist(&playlist_response)
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}
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pub async fn get_playlist_cont(&self, playlist: &mut Playlist) -> Result<()> {
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match &playlist.ctoken {
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Some(ctoken) => {
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let client = self.get_ytclient(ClientType::Desktop);
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let context = client.get_context(true).await;
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let request_body = QPlaylistCont {
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context,
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continuation: ctoken.to_owned(),
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};
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let resp = client
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.request_builder(Method::POST, "browse")
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.await
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.json(&request_body)
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.send()
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.await?
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.error_for_status()?;
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let cont_response = resp.json::<response::playlist::PlaylistCont>().await?;
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let action = some_or_bail!(
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cont_response
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.on_response_received_actions
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.iter()
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.find(|a| a.append_continuation_items_action.target_id == playlist.id),
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Err(anyhow!("no continuation action"))
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);
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let (mut videos, ctoken) =
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map_playlist_items(&action.append_continuation_items_action.continuation_items);
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playlist.videos.append(&mut videos);
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playlist.ctoken = ctoken;
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if playlist.ctoken.is_none() {
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playlist.n_videos = playlist.videos.len() as u32;
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}
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Ok(())
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}
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None => Err(anyhow!("no ctoken")),
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}
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}
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}
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fn map_playlist(response: &response::Playlist) -> Result<Playlist> {
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let video_items = &some_or_bail!(
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some_or_bail!(
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some_or_bail!(
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response
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.contents
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.two_column_browse_results_renderer
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.contents
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.get(0),
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Err(anyhow!("twoColumnBrowseResultsRenderer empty"))
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)
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.tab_renderer
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.content
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.section_list_renderer
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.contents
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.get(0),
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Err(anyhow!("sectionListRenderer empty"))
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)
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.item_section_renderer
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.contents
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.get(0),
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Err(anyhow!("itemSectionRenderer empty"))
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)
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.playlist_video_list_renderer
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.contents;
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let (videos, ctoken) = map_playlist_items(video_items);
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let (thumbnails, last_update_txt) = match &response.sidebar {
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Some(sidebar) => {
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let primary = some_or_bail!(
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sidebar.playlist_sidebar_renderer.items.get(0),
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Err(anyhow!("no primary sidebar"))
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);
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(
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&primary
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.playlist_sidebar_primary_info_renderer
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.thumbnail_renderer
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.playlist_video_thumbnail_renderer
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.thumbnail
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.thumbnails,
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primary
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.playlist_sidebar_primary_info_renderer
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.stats
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.get(2)
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.map(|t| t.to_owned()),
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)
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}
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None => {
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let header_banner = some_or_bail!(
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&response
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.header
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.playlist_header_renderer
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.playlist_header_banner,
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Err(anyhow!("no thumbnail found"))
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);
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let last_update_txt = response
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.header
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.playlist_header_renderer
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.byline
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.get(1)
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.map(|b| b.playlist_byline_renderer.text.to_owned());
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(
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&header_banner
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.hero_playlist_thumbnail_renderer
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.thumbnail
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.thumbnails,
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last_update_txt,
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)
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}
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};
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let thumbnails = thumbnails
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.iter()
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.map(|t| Thumbnail {
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url: t.url.to_owned(),
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width: t.width,
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height: t.height,
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})
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.collect::<Vec<_>>();
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let n_videos = match ctoken {
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Some(_) => {
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ok_or_bail!(
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util::parse_numeric(&response.header.playlist_header_renderer.num_videos_text),
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Err(anyhow!("no video count"))
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)
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}
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None => videos.len() as u32,
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};
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let id = response
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.header
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.playlist_header_renderer
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.playlist_id
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.to_owned();
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let name = response.header.playlist_header_renderer.title.to_owned();
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let description = response
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.header
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.playlist_header_renderer
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.description_text
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.to_owned();
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let channel = match &response.header.playlist_header_renderer.owner_text {
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Some(owner_text) => match owner_text {
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TextLink::Browse {
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text,
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page_type,
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browse_id,
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} => match page_type {
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PageType::Channel => Some(Channel {
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id: browse_id.to_owned(),
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name: text.to_owned(),
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}),
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_ => None,
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},
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_ => None,
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},
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None => None,
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};
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Ok(Playlist {
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id,
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name,
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videos,
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n_videos,
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ctoken,
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thumbnails,
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description,
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channel,
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last_update: None,
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last_update_txt,
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})
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}
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fn map_playlist_items(
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items: &Vec<response::VideoListItem<response::playlist::PlaylistVideo>>,
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) -> (Vec<Video>, Option<String>) {
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let mut ctoken: Option<String> = None;
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let videos = items
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.iter()
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.filter_map(|it| match it {
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response::VideoListItem::GridVideoRenderer { video } => match &video.channel {
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TextLink::Browse {
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text,
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page_type,
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browse_id,
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} => match page_type {
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PageType::Channel => Some(Video {
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id: video.video_id.to_owned(),
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title: video.title.to_owned(),
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length: video.length_seconds,
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thumbnails: video
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.thumbnail
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.thumbnails
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.iter()
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.map(|t| Thumbnail {
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url: t.url.to_owned(),
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width: t.width,
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height: t.height,
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})
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.collect(),
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channel: Channel {
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id: browse_id.to_string(),
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name: text.to_owned(),
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},
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}),
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_ => None,
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},
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_ => None,
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},
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response::VideoListItem::ContinuationItemRenderer {
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continuation_endpoint,
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} => {
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ctoken = Some(continuation_endpoint.continuation_command.token.to_owned());
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None
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}
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})
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.collect::<Vec<_>>();
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(videos, ctoken)
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}
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#[cfg(test)]
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mod tests {
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use std::{fs::File, io::BufReader, path::Path};
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use rstest::rstest;
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use super::*;
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#[test_log::test(tokio::test)]
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async fn download_testfiles() {
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let tf_dir = Path::new("testfiles/playlist");
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let rt = RustyTube::new();
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for (name, id) in [
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("short", "RDCLAK5uy_kFQXdnqMaQCVx2wpUM4ZfbsGCDibZtkJk"),
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("long", "PL5dDx681T4bR7ZF1IuWzOv1omlRbE7PiJ"),
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("nomusic", "PL1J-6JOckZtE_P9Xx8D3b2O6w0idhuKBe"),
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] {
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let mut json_path = tf_dir.to_path_buf();
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json_path.push(format!("playlist_{}.json", name));
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if json_path.exists() {
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continue;
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}
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let client = rt.get_ytclient(ClientType::Desktop);
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let context = client.get_context(false).await;
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let request_body = QPlaylist {
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context,
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browse_id: "VL".to_owned() + id,
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};
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let resp = client
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.request_builder(Method::POST, "browse")
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.await
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.json(&request_body)
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.send()
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.await
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.unwrap()
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.error_for_status()
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.unwrap();
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let mut file = std::fs::File::create(json_path).unwrap();
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let mut content = std::io::Cursor::new(resp.bytes().await.unwrap());
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std::io::copy(&mut content, &mut file).unwrap();
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}
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}
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#[rstest]
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#[case::long(
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"PL5dDx681T4bR7ZF1IuWzOv1omlRbE7PiJ",
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"Die schönsten deutschen Lieder | Beliebteste Lieder | Beste Deutsche Musik 2022",
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true,
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None,
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Some(Channel {
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id: "UCIekuFeMaV78xYfvpmoCnPg".to_owned(),
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name: "Best Music".to_owned(),
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})
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)]
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#[case::short(
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"RDCLAK5uy_kFQXdnqMaQCVx2wpUM4ZfbsGCDibZtkJk",
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"Easy Pop",
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false,
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None,
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None
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)]
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#[case::nomusic(
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"PL1J-6JOckZtE_P9Xx8D3b2O6w0idhuKBe",
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"Minecraft SHINE",
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false,
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Some("SHINE - Survival Hardcore in New Environment: Auf einem Server machen sich tapfere Spieler auf, mystische Welten zu erkunden, magische Technologien zu erforschen und vorallem zu überleben...".to_owned()),
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Some(Channel {
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id: "UCQM0bS4_04-Y4JuYrgmnpZQ".to_owned(),
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name: "Chaosflo44".to_owned(),
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})
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)]
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#[test_log::test(tokio::test)]
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async fn t_get_playlist(
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#[case] id: &str,
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#[case] name: &str,
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#[case] is_long: bool,
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#[case] description: Option<String>,
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#[case] channel: Option<Channel>,
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) {
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let rt = RustyTube::new();
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let playlist = rt.get_playlist(id).await.unwrap();
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assert_eq!(playlist.id, id);
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assert_eq!(playlist.name, name);
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assert!(!playlist.videos.is_empty());
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assert_eq!(playlist.ctoken.is_some(), is_long);
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assert!(playlist.n_videos > 10);
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assert_eq!(playlist.n_videos > 100, is_long);
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assert_eq!(playlist.description, description);
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assert_eq!(playlist.channel, channel);
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assert!(!playlist.thumbnails.is_empty());
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}
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#[rstest]
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#[case::long("long")]
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#[case::short("short")]
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#[case::nomusic("nomusic")]
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fn t_map_player_data(#[case] name: &str) {
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let filename = format!("testfiles/playlist/playlist_{}.json", name);
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let json_path = Path::new(&filename);
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let json_file = File::open(json_path).unwrap();
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let playlist: response::Playlist =
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serde_json::from_reader(BufReader::new(json_file)).unwrap();
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let playlist_data = map_playlist(&playlist).unwrap();
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insta::assert_yaml_snapshot!(format!("map_playlist_data_{}", name), playlist_data);
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}
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#[test_log::test(tokio::test)]
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async fn t_playlist_cont() {
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let rt = RustyTube::new();
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let mut playlist = rt
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.get_playlist("PLbZIPy20-1pN7mqjckepWF78ndb6ci_qi")
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.await
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.unwrap();
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while playlist.ctoken.is_some() {
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rt.get_playlist_cont(&mut playlist).await.unwrap();
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}
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assert!(playlist.videos.len() > 100);
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}
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}
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