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invidious
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Separate video data fetching from parsing in videos.cr

This commit is contained in:
Samantaz Fox 2022-07-18 23:35:34 +02:00
parent c8765385df
commit 049ed114fd
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1 changed files with 44 additions and 34 deletions
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78
src/invidious/videos.cr
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@ -886,13 +886,13 @@ def parse_related_video(related : JSON::Any) : Hash(String, JSON::Any)?
end
def extract_video_info(video_id : String, proxy_region : String? = nil, context_screen : String? = nil)
params = {} of String => JSON::Any
# Init client config for the API
client_config = YoutubeAPI::ClientConfig.new(proxy_region: proxy_region)
if context_screen == "embed"
client_config.client_type = YoutubeAPI::ClientType::TvHtml5ScreenEmbed
end
# Fetch data from the player endpoint
player_response = YoutubeAPI.player(video_id: video_id, params: "", client_config: client_config)
playability_status = player_response.dig?("playabilityStatus", "status").try &.as_s
@ -903,26 +903,29 @@ def extract_video_info(video_id : String, proxy_region : String? = nil, context_
reason ||= subreason.try &.[]("runs").as_a.map(&.[]("text")).join("")
reason ||= player_response.dig("playabilityStatus", "reason").as_s
params["reason"] = JSON::Any.new(reason)
# Stop here if video is not a scheduled livestream
if playability_status != "LIVE_STREAM_OFFLINE"
return params
return {
"reason" => JSON::Any.new(reason),
}
end
else
reason = nil
end
params["shortDescription"] = player_response.dig?("videoDetails", "shortDescription") || JSON::Any.new(nil)
# Don't fetch the next endpoint if the video is unavailable.
if {"OK", "LIVE_STREAM_OFFLINE"}.any?(playability_status)
next_response = YoutubeAPI.next({"videoId": video_id, "params": ""})
player_response = player_response.merge(next_response)
end
params = parse_video_info(video_id, player_response)
params["reason"] = JSON::Any.new(reason) if reason
# Fetch the video streams using an Android client in order to get the decrypted URLs and
# maybe fix throttling issues (#2194).See for the explanation about the decrypted URLs:
# https://github.com/TeamNewPipe/NewPipeExtractor/issues/562
if !params["reason"]?
if reason.nil?
if context_screen == "embed"
client_config.client_type = YoutubeAPI::ClientType::AndroidScreenEmbed
else
@ -940,10 +943,15 @@ def extract_video_info(video_id : String, proxy_region : String? = nil, context_
end
end
# TODO: clean that up
{"captions", "microformat", "playabilityStatus", "storyboards", "videoDetails"}.each do |f|
params[f] = player_response[f] if player_response[f]?
end
return params
end
def parse_video_info(video_id : String, player_response : Hash(String, JSON::Any)) : Hash(String, JSON::Any)
# Top level elements
main_results = player_response.dig?("contents", "twoColumnWatchNextResults")
@ -997,8 +1005,6 @@ def extract_video_info(video_id : String, proxy_region : String? = nil, context_
end
end
params["relatedVideos"] = JSON::Any.new(related)
# Likes
toplevel_buttons = video_primary_renderer
@ -1019,42 +1025,36 @@ def extract_video_info(video_id : String, proxy_region : String? = nil, context_
end
end
params["likes"] = JSON::Any.new(likes || 0_i64)
params["dislikes"] = JSON::Any.new(0_i64)
# Description
short_description = player_response.dig?("videoDetails", "shortDescription")
description_html = video_secondary_renderer.try &.dig?("description", "runs")
.try &.as_a.try { |t| content_to_comment_html(t, video_id) }
params["descriptionHtml"] = JSON::Any.new(description_html || "<p></p>")
# Video metadata
metadata = video_secondary_renderer
.try &.dig?("metadataRowContainer", "metadataRowContainerRenderer", "rows")
.try &.as_a
params["genre"] = params["microformat"]?.try &.["playerMicroformatRenderer"]?.try &.["category"]? || JSON::Any.new("")
params["genreUrl"] = JSON::Any.new(nil)
genre = player_response.dig?("microformat", "playerMicroformatRenderer", "category")
genre_ucid = nil
license = nil
metadata.try &.each do |row|
title = row["metadataRowRenderer"]?.try &.["title"]?.try &.["simpleText"]?.try &.as_s
metadata_title = row.dig?("metadataRowRenderer", "title", "simpleText").try &.as_s
contents = row.dig?("metadataRowRenderer", "contents", 0)
if title.try &.== "Category"
if metadata_title == "Category"
contents = contents.try &.dig?("runs", 0)
params["genre"] = JSON::Any.new(contents.try &.["text"]?.try &.as_s || "")
params["genreUcid"] = JSON::Any.new(contents.try &.["navigationEndpoint"]?.try &.["browseEndpoint"]?
.try &.["browseId"]?.try &.as_s || "")
elsif title.try &.== "License"
contents = contents.try &.["runs"]?
.try &.as_a[0]?
params["license"] = JSON::Any.new(contents.try &.["text"]?.try &.as_s || "")
elsif title.try &.== "Licensed to YouTube by"
params["license"] = JSON::Any.new(contents.try &.["simpleText"]?.try &.as_s || "")
genre = contents.try &.["text"]?
genre_ucid = contents.try &.dig?("navigationEndpoint", "browseEndpoint", "browseId")
elsif metadata_title == "License"
license = contents.try &.dig?("runs", 0, "text")
elsif metadata_title == "Licensed to YouTube by"
license = contents.try &.["simpleText"]?
end
end
@ -1062,20 +1062,30 @@ def extract_video_info(video_id : String, proxy_region : String? = nil, context_
if author_info = video_secondary_renderer.try &.dig?("owner", "videoOwnerRenderer")
author_thumbnail = author_info.dig?("thumbnail", "thumbnails", 0, "url")
params["authorThumbnail"] = JSON::Any.new(author_thumbnail.try &.as_s || "")
author_verified = has_verified_badge?(author_info["badges"]?)
params["authorVerified"] = JSON::Any.new(author_verified)
subs_text = author_info["subscriberCountText"]?
.try { |t| t["simpleText"]? || t.dig?("runs", 0, "text") }
.try &.as_s.split(" ", 2)[0]
params["subCountText"] = JSON::Any.new(subs_text || "-")
end
# Return data
params = {
"shortDescription" => JSON::Any.new(short_description.try &.as_s || nil),
"relatedVideos" => JSON::Any.new(related),
"likes" => JSON::Any.new(likes || 0_i64),
"dislikes" => JSON::Any.new(0_i64),
"descriptionHtml" => JSON::Any.new(description_html || "<p></p>"),
"genre" => JSON::Any.new(genre.try &.as_s || ""),
"genreUrl" => JSON::Any.new(nil),
"genreUcid" => JSON::Any.new(genre_ucid.try &.as_s || ""),
"license" => JSON::Any.new(license.try &.as_s || ""),
"authorThumbnail" => JSON::Any.new(author_thumbnail.try &.as_s || ""),
"authorVerified" => JSON::Any.new(author_verified),
"subCountText" => JSON::Any.new(subs_text || "-"),
}
return params
end