forked from midou/invidious
Added attributed description support
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81
src/invidious/videos/description.cr
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81
src/invidious/videos/description.cr
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@ -0,0 +1,81 @@
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require "json"
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require "uri"
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def parse_command(command : JSON::Any?, string : String) : String?
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on_tap = command.dig?("onTap", "innertubeCommand")
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# 3rd party URL, extract original URL from YouTube tracking URL
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if url_endpoint = on_tap.try &.["urlEndpoint"]?
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youtube_url = URI.parse url_endpoint["url"].as_s
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original_url = youtube_url.query_params["q"]?
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if original_url.nil?
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return ""
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else
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return "<a href=\"#{original_url}\">#{original_url}</a>"
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end
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# 1st party watch URL
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elsif watch_endpoint = on_tap.try &.["watchEndpoint"]?
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video_id = watch_endpoint["videoId"].as_s
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time = watch_endpoint["startTimeSeconds"].as_i
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url = "/watch?v=#{video_id}&t=#{time}s"
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# if text is a timestamp, use the string instead
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if /(?:\d{2}:){1,2}\d{2}/ =~ string
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return "<a href=\"#{url}\">#{string}</a>"
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else
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return "<a href=\"#{url}\">#{url}</a>"
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end
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# hashtag/other browse URLs
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elsif browse_endpoint = on_tap.try &.dig?("commandMetadata", "webCommandMetadata")
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url = browse_endpoint["url"].try &.as_s
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# remove unnecessary character in a channel name
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if browse_endpoint["webPageType"]?.try &.as_s == "WEB_PAGE_TYPE_CHANNEL"
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name = string.match(/@[\w\d]+/)
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if name.try &.[0]?
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return "<a href=\"#{url}\">#{name.try &.[0]}</a>"
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end
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end
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return "<a href=\"#{url}\">#{string}</a>"
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end
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return "(unknown YouTube desc command)"
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end
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def parse_description(desc : JSON::Any?) : String?
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if desc.nil?
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return ""
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end
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content = desc["content"].as_s
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if content.empty?
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return ""
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end
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if commands = desc["commandRuns"]?.try &.as_a
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description = String.build do |str|
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index = 0
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commands.each do |command|
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start_index = command["startIndex"].as_i
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length = command["length"].as_i
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if start_index > 0 && start_index - index > 0
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str << content[index..(start_index - 1)]
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index += start_index - index
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end
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str << parse_command(command, content[start_index, length])
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index += length
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end
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if index < content.size
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str << content[index..content.size]
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end
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end
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return description
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end
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return content
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end
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@ -284,8 +284,10 @@ def parse_video_info(video_id : String, player_response : Hash(String, JSON::Any
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description = microformat.dig?("description", "simpleText").try &.as_s || ""
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short_description = player_response.dig?("videoDetails", "shortDescription")
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description_html = video_secondary_renderer.try &.dig?("description", "runs")
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.try &.as_a.try { |t| content_to_comment_html(t, video_id) }
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# description_html = video_secondary_renderer.try &.dig?("description", "runs")
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# .try &.as_a.try { |t| content_to_comment_html(t, video_id) }
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description_html = parse_description(video_secondary_renderer.try &.dig?("attributedDescription"))
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# Video metadata
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