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Update get_about_info for polymer (iv-org/invidious#1423) (#1429)
Update get_about_info for polymer (iv-org/invidious#1423)
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Triplesalt
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@ -775,10 +775,12 @@ def extract_channel_community_cursor(continuation)
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cursor
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end
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INITDATA_PREQUERY = "window[\"ytInitialData\"] = {"
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def get_about_info(ucid, locale)
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about = YT_POOL.client &.get("/channel/#{ucid}/about?disable_polymer=1&gl=US&hl=en")
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about = YT_POOL.client &.get("/channel/#{ucid}/about?gl=US&hl=en")
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if about.status_code != 200
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about = YT_POOL.client &.get("/user/#{ucid}/about?disable_polymer=1&gl=US&hl=en")
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about = YT_POOL.client &.get("/user/#{ucid}/about?gl=US&hl=en")
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end
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if md = about.headers["location"]?.try &.match(/\/channel\/(?<ucid>UC[a-zA-Z0-9_-]{22})/)
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@ -790,6 +792,17 @@ def get_about_info(ucid, locale)
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raise error_message
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end
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initdata_pre = about.body.index(INITDATA_PREQUERY)
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initdata_post = initdata_pre.nil? ? nil : about.body.index("};", initdata_pre)
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if initdata_post.nil?
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about = XML.parse_html(about.body)
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error_message = about.xpath_node(%q(//div[@class="yt-alert-content"])).try &.content.strip
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error_message ||= translate(locale, "Could not get channel info.")
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raise error_message
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end
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initdata_pre = initdata_pre.not_nil! + INITDATA_PREQUERY.size - 1
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initdata = JSON.parse(about.body[initdata_pre, initdata_post - initdata_pre + 1])
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about = XML.parse_html(about.body)
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if about.xpath_node(%q(//div[contains(@class, "channel-empty-message")]))
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@ -797,73 +810,94 @@ def get_about_info(ucid, locale)
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raise error_message
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end
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if about.xpath_node(%q(//span[contains(@class,"qualified-channel-title-text")]/a)).try &.content.empty?
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error_message = about.xpath_node(%q(//div[@class="yt-alert-content"])).try &.content.strip
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error_message ||= translate(locale, "Could not get channel info.")
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raise error_message
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end
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author = about.xpath_node(%q(//span[contains(@class,"qualified-channel-title-text")]/a)).not_nil!.content
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author_url = about.xpath_node(%q(//span[contains(@class,"qualified-channel-title-text")]/a)).not_nil!["href"]
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author_thumbnail = about.xpath_node(%q(//img[@class="channel-header-profile-image"])).not_nil!["src"]
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author = about.xpath_node(%q(//meta[@name="title"])).not_nil!["content"]
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author_url = about.xpath_node(%q(//link[@rel="canonical"])).not_nil!["href"]
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author_thumbnail = about.xpath_node(%q(//link[@rel="image_src"])).not_nil!["href"]
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ucid = about.xpath_node(%q(//meta[@itemprop="channelId"])).not_nil!["content"]
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banner = about.xpath_node(%q(//div[@id="gh-banner"]/style)).not_nil!.content
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banner = "https:" + banner.match(/background-image: url\((?<url>[^)]+)\)/).not_nil!["url"]
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# Raises a KeyError on failure.
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banners = initdata["header"]["c4TabbedHeaderRenderer"]?.try &.["banner"]?.try &.["thumbnails"]?
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banner = banners.try &.[-1]?.try &.["url"].as_s?
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if banner.includes? "channels/c4/default_banner"
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banner = nil
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end
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# if banner.includes? "channels/c4/default_banner"
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# banner = nil
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# end
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description_html = about.xpath_node(%q(//div[contains(@class,"about-description")])).try &.to_s ||
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%(<div class="about-description branded-page-box-padding"><pre></pre></div>)
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description = initdata["metadata"]["channelMetadataRenderer"]?.try &.["description"]?.try &.as_s? || ""
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description_html = HTML.escape(description).gsub("\n", "<br>")
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paid = about.xpath_node(%q(//meta[@itemprop="paid"])).not_nil!["content"] == "True"
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is_family_friendly = about.xpath_node(%q(//meta[@itemprop="isFamilyFriendly"])).not_nil!["content"] == "True"
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allowed_regions = about.xpath_node(%q(//meta[@itemprop="regionsAllowed"])).not_nil!["content"].split(",")
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related_channels = about.xpath_nodes(%q(//div[contains(@class, "branded-page-related-channels")]/ul/li))
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related_channels = related_channels.map do |node|
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related_id = node["data-external-id"]?
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related_id ||= ""
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related_channels = initdata["contents"]["twoColumnBrowseResultsRenderer"]
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.["secondaryContents"]?.try &.["browseSecondaryContentsRenderer"]["contents"][0]?
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.try &.["verticalChannelSectionRenderer"]?.try &.["items"]?.try &.as_a.map do |node|
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renderer = node["miniChannelRenderer"]?
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related_id = renderer.try &.["channelId"]?.try &.as_s?
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related_id ||= ""
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anchor = node.xpath_node(%q(.//h3[contains(@class, "yt-lockup-title")]/a))
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related_title = anchor.try &.["title"]
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related_title ||= ""
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related_title = renderer.try &.["title"]?.try &.["simpleText"]?.try &.as_s?
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related_title ||= ""
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related_author_url = anchor.try &.["href"]
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related_author_url ||= ""
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related_author_url = renderer.try &.["navigationEndpoint"]?.try &.["commandMetadata"]?.try &.["webCommandMetadata"]?
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.try &.["url"]?.try &.as_s?
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related_author_url ||= ""
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related_author_thumbnail = node.xpath_node(%q(.//img)).try &.["data-thumb"]
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related_author_thumbnail ||= ""
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related_author_thumbnails = renderer.try &.["thumbnail"]?.try &.["thumbnails"]?.try &.as_a?
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related_author_thumbnails ||= [] of JSON::Any
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AboutRelatedChannel.new({
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ucid: related_id,
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author: related_title,
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author_url: related_author_url,
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author_thumbnail: related_author_thumbnail,
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})
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end
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related_author_thumbnail = ""
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if related_author_thumbnails.size > 0
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related_author_thumbnail = related_author_thumbnails[-1]["url"]?.try &.as_s?
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related_author_thumbnail ||= ""
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end
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joined = about.xpath_node(%q(//span[contains(., "Joined")]))
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.try &.content.try { |text| Time.parse(text, "Joined %b %-d, %Y", Time::Location.local) } || Time.unix(0)
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AboutRelatedChannel.new({
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ucid: related_id,
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author: related_title,
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author_url: related_author_url,
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author_thumbnail: related_author_thumbnail,
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})
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end
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related_channels ||= [] of AboutRelatedChannel
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total_views = about.xpath_node(%q(//span[contains(., "views")]/b))
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.try &.content.try &.gsub(/\D/, "").to_i64? || 0_i64
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sub_count = about.xpath_node(%q(.//span[contains(@class, "subscriber-count")]))
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.try &.["title"].try { |text| short_text_to_number(text) } || 0
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# Auto-generated channels
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# https://support.google.com/youtube/answer/2579942
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total_views = 0_i64
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joined = Time.unix(0)
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tabs = [] of String
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auto_generated = false
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if about.xpath_node(%q(//ul[@class="about-custom-links"]/li/a[@title="Auto-generated by YouTube"])) ||
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about.xpath_node(%q(//span[@class="qualified-channel-title-badge"]/span[@title="Auto-generated by YouTube"]))
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auto_generated = true
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tabs_json = initdata["contents"]["twoColumnBrowseResultsRenderer"]["tabs"]?.try &.as_a?
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if !tabs_json.nil?
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# Retrieve information from the tabs array. The index we are looking for varies between channels.
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tabs_json.each do |node|
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# Try to find the about section which is located in only one of the tabs.
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channel_about_meta = node["tabRenderer"]?.try &.["content"]?.try &.["sectionListRenderer"]?
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.try &.["contents"]?.try &.[0]?.try &.["itemSectionRenderer"]?.try &.["contents"]?
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.try &.[0]?.try &.["channelAboutFullMetadataRenderer"]?
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if !channel_about_meta.nil?
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total_views = channel_about_meta["viewCountText"]?.try &.["simpleText"]?.try &.as_s.gsub(/\D/, "").to_i64? || 0_i64
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# The joined text is split to several sub strings. The reduce joins those strings before parsing the date.
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joined = channel_about_meta["joinedDateText"]?.try &.["runs"]?.try &.as_a.reduce("") { |acc, node| acc + node["text"].as_s }
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.try { |text| Time.parse(text, "Joined %b %-d, %Y", Time::Location.local) } || Time.unix(0)
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# Auto-generated channels
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# https://support.google.com/youtube/answer/2579942
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# For auto-generated channels, channel_about_meta only has ["description"]["simpleText"] and ["primaryLinks"][0]["title"]["simpleText"]
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if (channel_about_meta["primaryLinks"]?.try &.size || 0) == 1 && (channel_about_meta["primaryLinks"][0]?)
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(channel_about_meta["primaryLinks"][0]["title"]?.try &.["simpleText"]?.try &.as_s? || "") == "Auto-generated by YouTube"
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auto_generated = true
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end
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end
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end
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tabs = tabs_json.reject { |node| node["tabRenderer"]?.nil? }.map { |node| node["tabRenderer"]["title"].as_s.downcase }
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end
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tabs = about.xpath_nodes(%q(//ul[@id="channel-navigation-menu"]/li/a/span)).map { |node| node.content.downcase }
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sub_count = initdata["header"]["c4TabbedHeaderRenderer"]?.try &.["subscriberCountText"]?.try &.["simpleText"]?.try &.as_s?
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.try { |text| short_text_to_number(text.split(" ")[0]) } || 0
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AboutChannel.new({
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ucid: ucid,
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@ -28,7 +28,7 @@
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</div>
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<div class="h-box">
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<p><span style="white-space:pre-wrap"><%= XML.parse_html(channel.description_html).xpath_node(%q(.//pre)).try &.content %></span></p>
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<p><span style="white-space:pre-wrap"><%= channel.description_html %></span></p>
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</div>
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<div class="h-box">
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