diff --git a/src/invidious/hashtag.cr b/src/invidious/hashtag.cr index d9d584c9..a0f7f718 100644 --- a/src/invidious/hashtag.cr +++ b/src/invidious/hashtag.cr @@ -1,42 +1,89 @@ module Invidious::Hashtag extend self - def fetch(hashtag : String, page : Int, region : String? = nil) : Array(SearchItem) + struct HashtagPage + include DB::Serializable + + property videos : Array(SearchItem) | Array(Video) + property header : SearchHashtag? + property has_next_continuation : Bool + + def to_json(locale : String?, json : JSON::Builder) + json.object do + json.field "type", "hashtagPage" + if self.header != nil + json.field "header" do + self.header.try &.as(SearchHashtag).to_json(locale, json) + end + end + json.field "results" do + json.array do + self.videos.each do |item| + item.to_json(locale, json) + end + end + end + json.field "hasNextPage", self.has_next_continuation + end + end + end + + def fetch(hashtag : String, page : Int, region : String? = nil) : HashtagPage cursor = (page - 1) * 60 - ctoken = generate_continuation(hashtag, cursor) - + header = nil client_config = YoutubeAPI::ClientConfig.new(region: region) - response = YoutubeAPI.browse(continuation: ctoken, client_config: client_config) + item = generate_continuation(hashtag, cursor) + # item is a ctoken + if cursor > 0 + response = YoutubeAPI.browse(continuation: item, client_config: client_config) + else + # item browses the first page (including metadata) + response = YoutubeAPI.browse("FEhashtag", params: item, client_config: client_config) + if item_contents = response.dig?("header") + header = parse_item(item_contents).try &.as(SearchHashtag) + end + end - items, _ = extract_items(response) - return items + items, next_continuation = extract_items(response) + return HashtagPage.new({ + videos: items, + header: header, + has_next_continuation: next_continuation != nil, + }) end def generate_continuation(hashtag : String, cursor : Int) object = { - "80226972:embedded" => { - "2:string" => "FEhashtag", - "3:base64" => { - "1:varint" => 60_i64, # result count - "15:base64" => { - "1:varint" => cursor.to_i64, - "2:varint" => 0_i64, - }, - "93:2:embedded" => { - "1:string" => hashtag, - "2:varint" => 0_i64, - "3:varint" => 1_i64, - }, - }, - "35:string" => "browse-feedFEhashtag", + "93:2:embedded" => { + "1:string" => hashtag, + "2:varint" => 0_i64, + "3:varint" => 1_i64, }, } + if cursor > 0 + object = { + "80226972:embedded" => { + "2:string" => "FEhashtag", + "3:base64" => { + "1:varint" => 60_i64, # result count + "15:base64" => { + "1:varint" => cursor.to_i64, + "2:varint" => 0_i64, + }, + "93:2:embedded" => { + "1:string" => hashtag, + "2:varint" => 0_i64, + "3:varint" => 1_i64, + }, + }, + "35:string" => "browse-feedFEhashtag", + }, + } + end - continuation = object.try { |i| Protodec::Any.cast_json(i) } + return object.try { |i| Protodec::Any.cast_json(i) } .try { |i| Protodec::Any.from_json(i) } .try { |i| Base64.urlsafe_encode(i) } .try { |i| URI.encode_www_form(i) } - - return continuation end end diff --git a/src/invidious/routes/api/v1/search.cr b/src/invidious/routes/api/v1/search.cr index 2922b060..8c787a67 100644 --- a/src/invidious/routes/api/v1/search.cr +++ b/src/invidious/routes/api/v1/search.cr @@ -69,21 +69,13 @@ module Invidious::Routes::API::V1::Search env.response.content_type = "application/json" begin - results = Invidious::Hashtag.fetch(hashtag, page, region) + hashtag_page = Invidious::Hashtag.fetch(hashtag, page, region) rescue ex return error_json(400, ex) end JSON.build do |json| - json.object do - json.field "results" do - json.array do - results.each do |item| - item.to_json(locale, json) - end - end - end - end + hashtag_page.to_json(locale, json) end end end diff --git a/src/invidious/routes/search.cr b/src/invidious/routes/search.cr index 44970922..da6ce18d 100644 --- a/src/invidious/routes/search.cr +++ b/src/invidious/routes/search.cr @@ -101,7 +101,8 @@ module Invidious::Routes::Search end begin - items = Invidious::Hashtag.fetch(hashtag, page) + hashtag_page = Invidious::Hashtag.fetch(hashtag, page) + items = hashtag_page.videos rescue ex return error_template(500, ex) end @@ -111,7 +112,7 @@ module Invidious::Routes::Search page_nav_html = Frontend::Pagination.nav_numeric(locale, base_url: "/hashtag/#{hashtag_encoded}", current_page: page, - show_next: (items.size >= 60) + show_next: hashtag_page.has_next_continuation ) templated "hashtag" diff --git a/src/invidious/yt_backend/extractors.cr b/src/invidious/yt_backend/extractors.cr index 38dc2c04..2b87c707 100644 --- a/src/invidious/yt_backend/extractors.cr +++ b/src/invidious/yt_backend/extractors.cr @@ -217,15 +217,18 @@ private module Parsers # # A `hashtagTileRenderer` is a kind of search result. # It can be found when searching for any hashtag (e.g "#hi" or "#shorts") + # + # A `hashtagHeaderRenderer` is displayed on the first page of the hashtag page. module HashtagRendererParser def self.process(item : JSON::Any, author_fallback : AuthorFallback) - if item_contents = item["hashtagTileRenderer"]? + if item_contents = (item["hashtagTileRenderer"]? || item["hashtagHeaderRenderer"]? || item["pageHeaderRenderer"]?) return self.parse(item_contents) end end private def self.parse(item_contents) - title = extract_text(item_contents["hashtag"]).not_nil! # E.g "#hi" + title = item_contents.dig?("pageTitle").try &.as_s + title ||= extract_text(item_contents["hashtag"]).not_nil! # E.g "#hi" # E.g "/hashtag/hi" url = item_contents.dig?("onTapCommand", "commandMetadata", "webCommandMetadata", "url").try &.as_s @@ -236,8 +239,10 @@ private module Parsers # Fallback for video/channel counts if channel_count_txt.nil? || video_count_txt.nil? + info_text = (item_contents.dig?("content", "pageHeaderViewModel", "metadata", "contentMetadataViewModel", "metadataRows", 0, "metadataParts", 0, "text", "content").try &.as_s || + extract_text(item_contents.dig?("hashtagInfoText"))).try &.split(" • ") + # E.g: "203K videos • 81K channels" - info_text = extract_text(item_contents["hashtagInfoText"]?).try &.split(" • ") if info_text && info_text.size == 2 video_count_txt ||= info_text[0]