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Add fix for playlists with less than 100 videos
This commit is contained in:
Omar Roth
parent
d886f8d1e3
commit
35ac887133
2 changed files with 79 additions and 56 deletions
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@ -390,13 +390,14 @@ get "/playlist" do |env|
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page = env.params.query["page"]?.try &.to_i?
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page ||= 1
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playlist = fetch_playlist(plid)
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begin
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videos = extract_playlist(plid, page)
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videos = fetch_playlist_videos(plid, page, playlist.video_count)
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rescue ex
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error_message = ex.message
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next templated "error"
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end
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playlist = fetch_playlist(plid)
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templated "playlist"
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end
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@ -470,11 +471,11 @@ get "/search" do |env|
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elsif subscriptions
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videos = PG_DB.query_all("SELECT id,title,published,updated,ucid,author FROM (
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SELECT *,
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to_tsvector(channel_videos.title) ||
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to_tsvector(channel_videos.author)
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as document
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to_tsvector(channel_videos.title) ||
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to_tsvector(channel_videos.author)
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as document
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FROM channel_videos WHERE ucid IN (#{arg_array(ucids, 3)})
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) v_search WHERE v_search.document @@ plainto_tsquery($1) LIMIT 20 OFFSET $2;", [search_query, (page - 1) * 20] + ucids, as: ChannelVideo)
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) v_search WHERE v_search.document @@ plainto_tsquery($1) LIMIT 20 OFFSET $2;", [search_query, (page - 1) * 20] + ucids, as: ChannelVideo)
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count = videos.size
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else
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begin
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@ -2822,15 +2823,15 @@ get "/api/v1/playlists/:plid" do |env|
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page = env.params.query["page"]?.try &.to_i?
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page ||= 1
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playlist = fetch_playlist(plid)
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begin
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videos = extract_playlist(plid, page)
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videos = fetch_playlist_videos(plid, page, playlist.video_count)
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rescue ex
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error_message = {"error" => "Playlist is empty"}.to_json
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halt env, status_code: 404, response: error_message
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end
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playlist = fetch_playlist(plid)
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response = JSON.build do |json|
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json.object do
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json.field "title", playlist.title
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@ -25,58 +25,75 @@ class PlaylistVideo
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})
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end
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def extract_playlist(plid, page)
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index = (page - 1) * 100
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url = produce_playlist_url(plid, index)
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def fetch_playlist_videos(plid, page, video_count)
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client = make_client(YT_URL)
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response = client.get(url)
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response = JSON.parse(response.body)
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if !response["content_html"]? || response["content_html"].as_s.empty?
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raise "Playlist does not exist"
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if video_count > 100
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index = (page - 1) * 100
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url = produce_playlist_url(plid, index)
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response = client.get(url)
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response = JSON.parse(response.body)
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if !response["content_html"]? || response["content_html"].as_s.empty?
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raise "Playlist is empty"
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end
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document = XML.parse_html(response["content_html"].as_s)
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nodeset = document.xpath_nodes(%q(.//tr[contains(@class, "pl-video")]))
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videos = extract_playlist(plid, nodeset, index)
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else
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if page > 1
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videos = [] of PlaylistVideo
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else
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response = client.get("/playlist?list=#{plid}&disable_polymer=1")
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document = XML.parse_html(response.body)
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nodeset = document.xpath_nodes(%q(.//tr[contains(@class, "pl-video")]))
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videos = extract_playlist(plid, nodeset, 0)
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end
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end
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return videos
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end
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def extract_playlist(plid, nodeset, index)
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videos = [] of PlaylistVideo
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document = XML.parse_html(response["content_html"].as_s)
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anchor = document.xpath_node(%q(//div[@class="pl-video-owner"]/a))
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if anchor
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document.xpath_nodes(%q(.//tr[contains(@class, "pl-video")])).each_with_index do |video, offset|
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anchor = video.xpath_node(%q(.//td[@class="pl-video-title"]))
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if !anchor
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next
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end
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title = anchor.xpath_node(%q(.//a)).not_nil!.content.strip(" \n")
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id = anchor.xpath_node(%q(.//a)).not_nil!["href"].lchop("/watch?v=")[0, 11]
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anchor = anchor.xpath_node(%q(.//div[@class="pl-video-owner"]/a))
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if anchor
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author = anchor.content
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ucid = anchor["href"].split("/")[2]
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else
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author = ""
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ucid = ""
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end
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anchor = video.xpath_node(%q(.//td[@class="pl-video-time"]/div/div[1]))
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if anchor && !anchor.content.empty?
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length_seconds = decode_length_seconds(anchor.content)
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else
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length_seconds = 0
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end
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videos << PlaylistVideo.new(
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title,
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id,
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author,
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ucid,
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length_seconds,
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Time.now,
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[plid],
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index + offset,
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)
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nodeset.each_with_index do |video, offset|
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anchor = video.xpath_node(%q(.//td[@class="pl-video-title"]))
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if !anchor
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next
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end
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title = anchor.xpath_node(%q(.//a)).not_nil!.content.strip(" \n")
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id = anchor.xpath_node(%q(.//a)).not_nil!["href"].lchop("/watch?v=")[0, 11]
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anchor = anchor.xpath_node(%q(.//div[@class="pl-video-owner"]/a))
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if anchor
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author = anchor.content
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ucid = anchor["href"].split("/")[2]
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else
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author = ""
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ucid = ""
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end
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anchor = video.xpath_node(%q(.//td[@class="pl-video-time"]/div/div[1]))
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if anchor && !anchor.content.empty?
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length_seconds = decode_length_seconds(anchor.content)
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else
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length_seconds = 0
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end
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videos << PlaylistVideo.new(
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title,
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id,
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author,
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ucid,
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length_seconds,
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Time.now,
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[plid],
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index + offset,
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)
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end
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return videos
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@ -112,13 +129,18 @@ def produce_playlist_url(id, index)
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continuation = Base64.urlsafe_encode(continuation)
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continuation = URI.escape(continuation)
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url = "/browse_ajax?action_continuation=1&continuation=#{continuation}"
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url = "/browse_ajax?continuation=#{continuation}"
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return url
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end
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def fetch_playlist(plid)
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client = make_client(YT_URL)
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if plid.starts_with? "UC"
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plid = "UU#{plid.lchop("UC")}"
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end
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response = client.get("/playlist?list=#{plid}&disable_polymer=1")
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body = response.body.gsub(<<-END_BUTTON
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<button class="yt-uix-button yt-uix-button-size-default yt-uix-button-link yt-uix-expander-head playlist-description-expander yt-uix-inlineedit-ignore-edit" type="button" onclick=";return false;"><span class="yt-uix-button-content"> less <img alt="" src="/yts/img/pixel-vfl3z5WfW.gif">
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