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Merge pull request #2228 from syeopite/extract-items-overhaul

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Overhaul extract_item(s) functions and add infrastructure for parsing YouTube categories
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1
spec/helpers_spec.cr
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@ -6,6 +6,7 @@ require "spec"
require "yaml"
require "../src/invidious/helpers/*"
require "../src/invidious/channels/*"
require "../src/invidious/videos"
require "../src/invidious/comments"
require "../src/invidious/playlists"
require "../src/invidious/search"

566
src/invidious/helpers/extractors.cr Normal file
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@ -0,0 +1,566 @@
# This file contains helper methods to parse the Youtube API json data into
# neat little packages we can use
# Tuple of Parsers/Extractors so we can easily cycle through them.
private ITEM_CONTAINER_EXTRACTOR = {
Extractors::YouTubeTabs,
Extractors::SearchResults,
Extractors::Continuation,
}
private ITEM_PARSERS = {
Parsers::VideoRendererParser,
Parsers::ChannelRendererParser,
Parsers::GridPlaylistRendererParser,
Parsers::PlaylistRendererParser,
Parsers::CategoryRendererParser,
}
record AuthorFallback, name : String, id : String
# Namespace for logic relating to parsing InnerTube data into various datastructs.
#
# Each of the parsers in this namespace are accessed through the #process() method
# which validates the given data as applicable to itself. If it is applicable the given
# data is passed to the private `#parse()` method which returns a datastruct of the given
# type. Otherwise, nil is returned.
private module Parsers
# Parses a InnerTube videoRenderer into a SearchVideo. Returns nil when the given object isn't a videoRenderer
#
# A videoRenderer renders a video to click on within the YouTube and Invidious UI. It is **not**
# the watchable video itself.
#
# See specs for example.
#
# `videoRenderer`s can be found almost everywhere on YouTube. In categories, search results, channels, etc.
#
module VideoRendererParser
def self.process(item : JSON::Any, author_fallback : AuthorFallback)
if item_contents = (item["videoRenderer"]? || item["gridVideoRenderer"]?)
return self.parse(item_contents, author_fallback)
end
end
private def self.parse(item_contents, author_fallback)
video_id = item_contents["videoId"].as_s
title = extract_text(item_contents["title"]) || ""
# Extract author information
if author_info = item_contents.dig?("ownerText", "runs", 0)
author = author_info["text"].as_s
author_id = HelperExtractors.get_browse_id(author_info)
else
author = author_fallback.name
author_id = author_fallback.id
end
# For live videos (and possibly recently premiered videos) there is no published information.
# Instead, in its place is the amount of people currently watching. This behavior should be replicated
# on Invidious once all features of livestreams are supported. On an unrelated note, defaulting to the current
# time for publishing isn't a good idea.
published = item_contents.dig?("publishedTimeText", "simpleText").try { |t| decode_date(t.as_s) } || Time.local
# Typically views are stored under a "simpleText" in the "viewCountText". However, for
# livestreams and premiered it is stored under a "runs" array: [{"text":123}, {"text": "watching"}]
# When view count is disabled the "viewCountText" is not present on InnerTube data.
# TODO change default value to nil and typical encoding type to tuple storing type (watchers, views, etc)
# and count
view_count = item_contents.dig?("viewCountText", "simpleText").try &.as_s.gsub(/\D+/, "").to_i64? || 0_i64
description_html = item_contents["descriptionSnippet"]?.try { |t| parse_content(t) } || ""
# The length information *should* only always exist in "lengthText". However, the legacy Invidious code
# extracts from "thumbnailOverlays" when it doesn't. More testing is needed to see if this is
# actually needed
if length_container = item_contents["lengthText"]?
length_seconds = decode_length_seconds(length_container["simpleText"].as_s)
elsif length_container = item_contents["thumbnailOverlays"]?.try &.as_a.find(&.["thumbnailOverlayTimeStatusRenderer"]?)
length_seconds = extract_text(length_container["thumbnailOverlayTimeStatusRenderer"]["text"]).try { |t| decode_length_seconds(t) } || 0
else
length_seconds = 0
end
live_now = false
paid = false
premium = false
premiere_timestamp = item_contents.dig?("upcomingEventData", "startTime").try { |t| Time.unix(t.as_s.to_i64) }
item_contents["badges"]?.try &.as_a.each do |badge|
b = badge["metadataBadgeRenderer"]
case b["label"].as_s
when "LIVE NOW"
live_now = true
when "New", "4K", "CC"
# TODO
when "Premium"
# TODO: Potentially available as item_contents["topStandaloneBadge"]["metadataBadgeRenderer"]
premium = true
else nil # Ignore
end
end
SearchVideo.new({
title: title,
id: video_id,
author: author,
ucid: author_id,
published: published,
views: view_count,
description_html: description_html,
length_seconds: length_seconds,
live_now: live_now,
premium: premium,
premiere_timestamp: premiere_timestamp,
})
end
end
# Parses a InnerTube channelRenderer into a SearchChannel. Returns nil when the given object isn't a channelRenderer
#
# A channelRenderer renders a channel to click on within the YouTube and Invidious UI. It is **not**
# the channel page itself.
#
# See specs for example.
#
# `channelRenderer`s can be found almost everywhere on YouTube. In categories, search results, channels, etc.
#
module ChannelRendererParser
def self.process(item : JSON::Any, author_fallback : AuthorFallback)
if item_contents = (item["channelRenderer"]? || item["gridChannelRenderer"]?)
return self.parse(item_contents, author_fallback)
end
end
private def self.parse(item_contents, author_fallback)
author = extract_text(item_contents["title"]) || author_fallback.name
author_id = item_contents["channelId"]?.try &.as_s || author_fallback.id
author_thumbnail = HelperExtractors.get_thumbnails(item_contents)
# When public subscriber count is disabled, the subscriberCountText isn't sent by InnerTube.
# Always simpleText
# TODO change default value to nil
subscriber_count = item_contents.dig?("subscriberCountText", "simpleText")
.try { |s| short_text_to_number(s.as_s.split(" ")[0]) } || 0
# Auto-generated channels doesn't have videoCountText
# Taken from: https://github.com/iv-org/invidious/pull/2228#discussion_r717620922
auto_generated = item_contents["videoCountText"]?.nil?
video_count = HelperExtractors.get_video_count(item_contents)
description_html = item_contents["descriptionSnippet"]?.try { |t| parse_content(t) } || ""
SearchChannel.new({
author: author,
ucid: author_id,
author_thumbnail: author_thumbnail,
subscriber_count: subscriber_count,
video_count: video_count,
description_html: description_html,
auto_generated: auto_generated,
})
end
end
# Parses a InnerTube gridPlaylistRenderer into a SearchPlaylist. Returns nil when the given object isn't a gridPlaylistRenderer
#
# A gridPlaylistRenderer renders a playlist, that is located in a grid, to click on within the YouTube and Invidious UI.
# It is **not** the playlist itself.
#
# See specs for example.
#
# `gridPlaylistRenderer`s can be found on the playlist-tabs of channels and expanded categories.
#
module GridPlaylistRendererParser
def self.process(item : JSON::Any, author_fallback : AuthorFallback)
if item_contents = item["gridPlaylistRenderer"]?
return self.parse(item_contents, author_fallback)
end
end
private def self.parse(item_contents, author_fallback)
title = extract_text(item_contents["title"]) || ""
plid = item_contents["playlistId"]?.try &.as_s || ""
video_count = HelperExtractors.get_video_count(item_contents)
playlist_thumbnail = HelperExtractors.get_thumbnails(item_contents)
SearchPlaylist.new({
title: title,
id: plid,
author: author_fallback.name,
ucid: author_fallback.id,
video_count: video_count,
videos: [] of SearchPlaylistVideo,
thumbnail: playlist_thumbnail,
})
end
end
# Parses a InnerTube playlistRenderer into a SearchPlaylist. Returns nil when the given object isn't a playlistRenderer
#
# A playlistRenderer renders a playlist to click on within the YouTube and Invidious UI. It is **not** the playlist itself.
#
# See specs for example.
#
# `playlistRenderer`s can be found almost everywhere on YouTube. In categories, search results, recommended, etc.
#
module PlaylistRendererParser
def self.process(item : JSON::Any, author_fallback : AuthorFallback)
if item_contents = item["playlistRenderer"]?
return self.parse(item_contents)
end
end
private def self.parse(item_contents)
title = item_contents["title"]["simpleText"]?.try &.as_s || ""
plid = item_contents["playlistId"]?.try &.as_s || ""
video_count = HelperExtractors.get_video_count(item_contents)
playlist_thumbnail = HelperExtractors.get_thumbnails_plural(item_contents)
author_info = item_contents.dig("shortBylineText", "runs", 0)
author = author_info["text"].as_s
author_id = HelperExtractors.get_browse_id(author_info)
videos = item_contents["videos"]?.try &.as_a.map do |v|
v = v["childVideoRenderer"]
v_title = v.dig?("title", "simpleText").try &.as_s || ""
v_id = v["videoId"]?.try &.as_s || ""
v_length_seconds = v.dig?("lengthText", "simpleText").try { |t| decode_length_seconds(t.as_s) } || 0
SearchPlaylistVideo.new({
title: v_title,
id: v_id,
length_seconds: v_length_seconds,
})
end || [] of SearchPlaylistVideo
# TODO: item_contents["publishedTimeText"]?
SearchPlaylist.new({
title: title,
id: plid,
author: author,
ucid: author_id,
video_count: video_count,
videos: videos,
thumbnail: playlist_thumbnail,
})
end
end
# Parses a InnerTube shelfRenderer into a Category. Returns nil when the given object isn't a shelfRenderer
#
# A shelfRenderer renders divided sections on YouTube. IE "People also watched" in search results and
# the various organizational sections in the channel home page. A separate one (richShelfRenderer) is used
# for YouTube home. A shelfRenderer can also sometimes be expanded to show more content within it.
#
# See specs for example.
#
# `shelfRenderer`s can be found almost everywhere on YouTube. In categories, search results, channels, etc.
#
module CategoryRendererParser
def self.process(item : JSON::Any, author_fallback : AuthorFallback)
if item_contents = item["shelfRenderer"]?
return self.parse(item_contents, author_fallback)
end
end
private def self.parse(item_contents, author_fallback)
title = extract_text(item_contents["title"]?) || ""
url = item_contents.dig?("endpoint", "commandMetadata", "webCommandMetadata", "url")
.try &.as_s
# Sometimes a category can have badges.
badges = [] of Tuple(String, String) # (Badge style, label)
item_contents["badges"]?.try &.as_a.each do |badge|
badge = badge["metadataBadgeRenderer"]
badges << {badge["style"].as_s, badge["label"].as_s}
end
# Category description
description_html = item_contents["subtitle"]?.try { |desc| parse_content(desc) } || ""
# Content parsing
contents = [] of SearchItem
# Content could be in three locations.
if content_container = item_contents["content"]["horizontalListRenderer"]?
elsif content_container = item_contents["content"]["expandedShelfContentsRenderer"]?
elsif content_container = item_contents["content"]["verticalListRenderer"]?
else
content_container = item_contents["contents"]
end
raw_contents = content_container["items"].as_a
raw_contents.each do |item|
result = extract_item(item)
if !result.nil?
contents << result
end
end
Category.new({
title: title,
contents: contents,
description_html: description_html,
url: url,
badges: badges,
})
end
end
end
# The following are the extractors for extracting an array of items from
# the internal Youtube API's JSON response. The result is then packaged into
# a structure we can more easily use via the parsers above. Their internals are
# identical to the item parsers.
# Namespace for logic relating to extracting InnerTube's initial response to items we can parse.
#
# Each of the extractors in this namespace are accessed through the #process() method
# which validates the given data as applicable to itself. If it is applicable the given
# data is passed to the private `#extract()` method which returns an array of
# parsable items. Otherwise, nil is returned.
#
# NOTE perhaps the result from here should be abstracted into a struct in order to
# get additional metadata regarding the container of the item(s).
private module Extractors
# Extracts items from the selected YouTube tab.
#
# YouTube tabs are typically stored under "twoColumnBrowseResultsRenderer"
# and is structured like this:
#
# "twoColumnBrowseResultsRenderer": {
# {"tabs": [
# {"tabRenderer": {
# "endpoint": {...}
# "title": "Playlists",
# "selected": true,
# "content": {...},
# ...
# }}
# ]}
# }]
#
module YouTubeTabs
def self.process(initial_data : Hash(String, JSON::Any))
if target = initial_data["twoColumnBrowseResultsRenderer"]?
self.extract(target)
end
end
private def self.extract(target)
raw_items = [] of JSON::Any
content = extract_selected_tab(target["tabs"])["content"]
content["sectionListRenderer"]["contents"].as_a.each do |renderer_container|
renderer_container_contents = renderer_container["itemSectionRenderer"]["contents"][0]
# Category extraction
if items_container = renderer_container_contents["shelfRenderer"]?
raw_items << renderer_container_contents
next
elsif items_container = renderer_container_contents["gridRenderer"]?
else
items_container = renderer_container_contents
end
items_container["items"].as_a.each do |item|
raw_items << item
end
end
return raw_items
end
end
# Extracts items from the InnerTube response for search results
#
# Search results are typically stored under "twoColumnSearchResultsRenderer"
# and is structured like this:
#
# "twoColumnSearchResultsRenderer": {
# {"primaryContents": {
# {"sectionListRenderer": {
# "contents": [...],
# ...,
# "subMenu": {...},
# "hideBottomSeparator": true,
# "targetId": "search-feed"
# }}
# }}
# }
#
module SearchResults
def self.process(initial_data : Hash(String, JSON::Any))
if target = initial_data["twoColumnSearchResultsRenderer"]?
self.extract(target)
end
end
private def self.extract(target)
raw_items = [] of Array(JSON::Any)
target.dig("primaryContents", "sectionListRenderer", "contents").as_a.each do |node|
if node = node["itemSectionRenderer"]?
raw_items << node["contents"].as_a
end
end
return raw_items.flatten
end
end
# Extracts continuation items from a InnerTube response
#
# Continuation items (on YouTube) are items which are appended to the
# end of the page for continuous scrolling. As such, in many cases,
# the items are lacking information such as author or category title,
# since the original results has already rendered them on the top of the page.
#
# The way they are structured is too varied to be accurately written down here.
# However, they all eventually lead to an array of parsable items after traversing
# through the JSON structure.
module Continuation
def self.process(initial_data : Hash(String, JSON::Any))
if target = initial_data["continuationContents"]?
self.extract(target)
elsif target = initial_data["appendContinuationItemsAction"]?
self.extract(target)
end
end
private def self.extract(target)
raw_items = [] of JSON::Any
if content = target["gridContinuation"]?
raw_items = content["items"].as_a
elsif content = target["continuationItems"]?
raw_items = content.as_a
end
return raw_items
end
end
end
# Helper methods to aid in the parsing of InnerTube to data structs.
#
# Mostly used to extract out repeated structures to deal with code
# repetition.
private module HelperExtractors
# Retrieves the amount of videos present within the given InnerTube data.
#
# Returns a 0 when it's unable to do so
def self.get_video_count(container : JSON::Any) : Int32
if box = container["videoCountText"]?
return extract_text(box).try &.gsub(/\D/, "").to_i || 0
elsif box = container["videoCount"]?
return box.as_s.to_i
else
return 0
end
end
# Retrieve lowest quality thumbnail from InnerTube data
#
# TODO allow configuration of image quality (-1 is highest)
#
# Raises when it's unable to parse from the given JSON data.
def self.get_thumbnails(container : JSON::Any) : String
return container.dig("thumbnail", "thumbnails", 0, "url").as_s
end
# ditto
#
# YouTube sometimes sends the thumbnail as:
# {"thumbnails": [{"thumbnails": [{"url": "example.com"}, ...]}]}
def self.get_thumbnails_plural(container : JSON::Any) : String
return container.dig("thumbnails", 0, "thumbnails", 0, "url").as_s
end
# Retrieves the ID required for querying the InnerTube browse endpoint.
# Raises when it's unable to do so
def self.get_browse_id(container)
return container.dig("navigationEndpoint", "browseEndpoint", "browseId").as_s
end
end
# Extracts text from InnerTube response
#
# InnerTube can package text in three different formats
# "runs": [
# {"text": "something"},
# {"text": "cont"},
# ...
# ]
#
# "SimpleText": "something"
#
# Or sometimes just none at all as with the data returned from
# category continuations.
#
# In order to facilitate calling this function with `#[]?`:
# A nil will be accepted. Of course, since nil cannot be parsed,
# another nil will be returned.
def extract_text(item : JSON::Any?) : String?
if item.nil?
return nil
end
if text_container = item["simpleText"]?
return text_container.as_s
elsif text_container = item["runs"]?
return text_container.as_a.map(&.["text"].as_s).join("")
else
nil
end
end
# Parses an item from Youtube's JSON response into a more usable structure.
# The end result can either be a SearchVideo, SearchPlaylist or SearchChannel.
def extract_item(item : JSON::Any, author_fallback : String? = "",
author_id_fallback : String? = "")
# We "allow" nil values but secretly use empty strings instead. This is to save us the
# hassle of modifying every author_fallback and author_id_fallback arg usage
# which is more often than not nil.
author_fallback = AuthorFallback.new(author_fallback || "", author_id_fallback || "")
# Cycles through all of the item parsers and attempt to parse the raw YT JSON data.
# Each parser automatically validates the data given to see if the data is
# applicable to itself. If not nil is returned and the next parser is attemped.
ITEM_PARSERS.each do |parser|
if result = parser.process(item, author_fallback)
return result
end
end
end
# Parses multiple items from YouTube's initial JSON response into a more usable structure.
# The end result is an array of SearchItem.
def extract_items(initial_data : Hash(String, JSON::Any), author_fallback : String? = nil,
author_id_fallback : String? = nil) : Array(SearchItem)
items = [] of SearchItem
if unpackaged_data = initial_data["contents"]?.try &.as_h
elsif unpackaged_data = initial_data["response"]?.try &.as_h
elsif unpackaged_data = initial_data.dig?("onResponseReceivedActions", 0).try &.as_h
else
unpackaged_data = initial_data
end
# This is identical to the parser cycling of extract_item().
ITEM_CONTAINER_EXTRACTOR.each do |extractor|
if container = extractor.process(unpackaged_data)
# Extract items in container
container.each do |item|
if parsed_result = extract_item(item, author_fallback, author_id_fallback)
items << parsed_result
end
end
break
end
end
return items
end

176
src/invidious/helpers/helpers.cr
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@ -248,168 +248,40 @@ def html_to_content(description_html : String)
end
def extract_videos(initial_data : Hash(String, JSON::Any), author_fallback : String? = nil, author_id_fallback : String? = nil)
extract_items(initial_data, author_fallback, author_id_fallback).select(&.is_a?(SearchVideo)).map(&.as(SearchVideo))
end
extracted = extract_items(initial_data, author_fallback, author_id_fallback)
def extract_item(item : JSON::Any, author_fallback : String? = nil, author_id_fallback : String? = nil)
if i = (item["videoRenderer"]? || item["gridVideoRenderer"]?)
video_id = i["videoId"].as_s
title = i["title"].try { |t| t["simpleText"]?.try &.as_s || t["runs"]?.try &.as_a.map(&.["text"].as_s).join("") } || ""
author_info = i["ownerText"]?.try &.["runs"]?.try &.as_a?.try &.[0]?
author = author_info.try &.["text"].as_s || author_fallback || ""
author_id = author_info.try &.["navigationEndpoint"]?.try &.["browseEndpoint"]["browseId"].as_s || author_id_fallback || ""
published = i["publishedTimeText"]?.try &.["simpleText"]?.try { |t| decode_date(t.as_s) } || Time.local
view_count = i["viewCountText"]?.try &.["simpleText"]?.try &.as_s.gsub(/\D+/, "").to_i64? || 0_i64
description_html = i["descriptionSnippet"]?.try { |t| parse_content(t) } || ""
length_seconds = i["lengthText"]?.try &.["simpleText"]?.try &.as_s.try { |t| decode_length_seconds(t) } ||
i["thumbnailOverlays"]?.try &.as_a.find(&.["thumbnailOverlayTimeStatusRenderer"]?).try &.["thumbnailOverlayTimeStatusRenderer"]?
.try &.["text"]?.try &.["simpleText"]?.try &.as_s.try { |t| decode_length_seconds(t) } || 0
live_now = false
premium = false
premiere_timestamp = i["upcomingEventData"]?.try &.["startTime"]?.try { |t| Time.unix(t.as_s.to_i64) }
i["badges"]?.try &.as_a.each do |badge|
b = badge["metadataBadgeRenderer"]
case b["label"].as_s
when "LIVE NOW"
live_now = true
when "New", "4K", "CC"
# TODO
when "Premium"
# TODO: Potentially available as i["topStandaloneBadge"]["metadataBadgeRenderer"]
premium = true
else nil # Ignore
end
target = [] of SearchItem
extracted.each do |i|
if i.is_a?(Category)
i.contents.each { |cate_i| target << cate_i if !cate_i.is_a? Video }
else
target << i
end
SearchVideo.new({
title: title,
id: video_id,
author: author,
ucid: author_id,
published: published,
views: view_count,
description_html: description_html,
length_seconds: length_seconds,
live_now: live_now,
premium: premium,
premiere_timestamp: premiere_timestamp,
})
elsif i = item["channelRenderer"]?
author = i["title"]["simpleText"]?.try &.as_s || author_fallback || ""
author_id = i["channelId"]?.try &.as_s || author_id_fallback || ""
author_thumbnail = i["thumbnail"]["thumbnails"]?.try &.as_a[0]?.try &.["url"]?.try &.as_s || ""
subscriber_count = i["subscriberCountText"]?.try &.["simpleText"]?.try &.as_s.try { |s| short_text_to_number(s.split(" ")[0]) } || 0
auto_generated = false
auto_generated = true if !i["videoCountText"]?
video_count = i["videoCountText"]?.try &.["runs"].as_a[0]?.try &.["text"].as_s.gsub(/\D/, "").to_i || 0
description_html = i["descriptionSnippet"]?.try { |t| parse_content(t) } || ""
SearchChannel.new({
author: author,
ucid: author_id,
author_thumbnail: author_thumbnail,
subscriber_count: subscriber_count,
video_count: video_count,
description_html: description_html,
auto_generated: auto_generated,
})
elsif i = item["gridPlaylistRenderer"]?
title = i["title"]["runs"].as_a[0]?.try &.["text"].as_s || ""
plid = i["playlistId"]?.try &.as_s || ""
video_count = i["videoCountText"]["runs"].as_a[0]?.try &.["text"].as_s.gsub(/\D/, "").to_i || 0
playlist_thumbnail = i["thumbnail"]["thumbnails"][0]?.try &.["url"]?.try &.as_s || ""
SearchPlaylist.new({
title: title,
id: plid,
author: author_fallback || "",
ucid: author_id_fallback || "",
video_count: video_count,
videos: [] of SearchPlaylistVideo,
thumbnail: playlist_thumbnail,
})
elsif i = item["playlistRenderer"]?
title = i["title"]["simpleText"]?.try &.as_s || ""
plid = i["playlistId"]?.try &.as_s || ""
video_count = i["videoCount"]?.try &.as_s.to_i || 0
playlist_thumbnail = i["thumbnails"].as_a[0]?.try &.["thumbnails"]?.try &.as_a[0]?.try &.["url"].as_s || ""
author_info = i["shortBylineText"]?.try &.["runs"]?.try &.as_a?.try &.[0]?
author = author_info.try &.["text"].as_s || author_fallback || ""
author_id = author_info.try &.["navigationEndpoint"]?.try &.["browseEndpoint"]["browseId"].as_s || author_id_fallback || ""
videos = i["videos"]?.try &.as_a.map do |v|
v = v["childVideoRenderer"]
v_title = v["title"]["simpleText"]?.try &.as_s || ""
v_id = v["videoId"]?.try &.as_s || ""
v_length_seconds = v["lengthText"]?.try &.["simpleText"]?.try { |t| decode_length_seconds(t.as_s) } || 0
SearchPlaylistVideo.new({
title: v_title,
id: v_id,
length_seconds: v_length_seconds,
})
end || [] of SearchPlaylistVideo
# TODO: i["publishedTimeText"]?
SearchPlaylist.new({
title: title,
id: plid,
author: author,
ucid: author_id,
video_count: video_count,
videos: videos,
thumbnail: playlist_thumbnail,
})
elsif i = item["radioRenderer"]? # Mix
# TODO
elsif i = item["showRenderer"]? # Show
# TODO
elsif i = item["shelfRenderer"]?
elsif i = item["horizontalCardListRenderer"]?
elsif i = item["searchPyvRenderer"]? # Ad
end
return target.select(&.is_a?(SearchVideo)).map(&.as(SearchVideo))
end
def extract_items(initial_data : Hash(String, JSON::Any), author_fallback : String? = nil, author_id_fallback : String? = nil)
items = [] of SearchItem
def extract_selected_tab(tabs)
# Extract the selected tab from the array of tabs Youtube returns
return selected_target = tabs.as_a.select(&.["tabRenderer"]?.try &.["selected"].as_bool)[0]["tabRenderer"]
end
channel_v2_response = initial_data
.try &.["continuationContents"]?
.try &.["gridContinuation"]?
.try &.["items"]?
def fetch_continuation_token(items : Array(JSON::Any))
# Fetches the continuation token from an array of items
return items.last["continuationItemRenderer"]?
.try &.["continuationEndpoint"]["continuationCommand"]["token"].as_s
end
if channel_v2_response
channel_v2_response.try &.as_a.each { |item|
extract_item(item, author_fallback, author_id_fallback)
.try { |t| items << t }
}
def fetch_continuation_token(initial_data : Hash(String, JSON::Any))
# Fetches the continuation token from initial data
if initial_data["onResponseReceivedActions"]?
continuation_items = initial_data["onResponseReceivedActions"][0]["appendContinuationItemsAction"]["continuationItems"]
else
initial_data.try { |t| t["contents"]? || t["response"]? }
.try { |t| t["twoColumnBrowseResultsRenderer"]?.try &.["tabs"].as_a.select(&.["tabRenderer"]?.try &.["selected"].as_bool)[0]?.try &.["tabRenderer"]["content"] ||
t["twoColumnSearchResultsRenderer"]?.try &.["primaryContents"] ||
t["continuationContents"]? }
.try { |t| t["sectionListRenderer"]? || t["sectionListContinuation"]? }
.try &.["contents"].as_a
.each { |c| c.try &.["itemSectionRenderer"]?.try &.["contents"].as_a
.try { |t| t[0]?.try &.["shelfRenderer"]?.try &.["content"]["expandedShelfContentsRenderer"]?.try &.["items"].as_a ||
t[0]?.try &.["gridRenderer"]?.try &.["items"].as_a || t }
.each { |item|
extract_item(item, author_fallback, author_id_fallback)
.try { |t| items << t }
} }
tab = extract_selected_tab(initial_data["contents"]["twoColumnBrowseResultsRenderer"]["tabs"])
continuation_items = tab["content"]["sectionListRenderer"]["contents"][0]["itemSectionRenderer"]["contents"][0]["gridRenderer"]["items"]
end
items
return fetch_continuation_token(continuation_items.as_a)
end
def check_enum(db, enum_name, struct_type = nil)

256
src/invidious/helpers/serialized_yt_data.cr Normal file
View File

@ -0,0 +1,256 @@
struct SearchVideo
include DB::Serializable
property title : String
property id : String
property author : String
property ucid : String
property published : Time
property views : Int64
property description_html : String
property length_seconds : Int32
property live_now : Bool
property premium : Bool
property premiere_timestamp : Time?
def to_xml(auto_generated, query_params, xml : XML::Builder)
query_params["v"] = self.id
xml.element("entry") do
xml.element("id") { xml.text "yt:video:#{self.id}" }
xml.element("yt:videoId") { xml.text self.id }
xml.element("yt:channelId") { xml.text self.ucid }
xml.element("title") { xml.text self.title }
xml.element("link", rel: "alternate", href: "#{HOST_URL}/watch?#{query_params}")
xml.element("author") do
if auto_generated
xml.element("name") { xml.text self.author }
xml.element("uri") { xml.text "#{HOST_URL}/channel/#{self.ucid}" }
else
xml.element("name") { xml.text author }
xml.element("uri") { xml.text "#{HOST_URL}/channel/#{ucid}" }
end
end
xml.element("content", type: "xhtml") do
xml.element("div", xmlns: "http://www.w3.org/1999/xhtml") do
xml.element("a", href: "#{HOST_URL}/watch?#{query_params}") do
xml.element("img", src: "#{HOST_URL}/vi/#{self.id}/mqdefault.jpg")
end
xml.element("p", style: "word-break:break-word;white-space:pre-wrap") { xml.text html_to_content(self.description_html) }
end
end
xml.element("published") { xml.text self.published.to_s("%Y-%m-%dT%H:%M:%S%:z") }
xml.element("media:group") do
xml.element("media:title") { xml.text self.title }
xml.element("media:thumbnail", url: "#{HOST_URL}/vi/#{self.id}/mqdefault.jpg",
width: "320", height: "180")
xml.element("media:description") { xml.text html_to_content(self.description_html) }
end
xml.element("media:community") do
xml.element("media:statistics", views: self.views)
end
end
end
def to_xml(auto_generated, query_params, xml : XML::Builder | Nil = nil)
if xml
to_xml(HOST_URL, auto_generated, query_params, xml)
else
XML.build do |json|
to_xml(HOST_URL, auto_generated, query_params, xml)
end
end
end
def to_json(locale : Hash(String, JSON::Any), json : JSON::Builder)
json.object do
json.field "type", "video"
json.field "title", self.title
json.field "videoId", self.id
json.field "author", self.author
json.field "authorId", self.ucid
json.field "authorUrl", "/channel/#{self.ucid}"
json.field "videoThumbnails" do
generate_thumbnails(json, self.id)
end
json.field "description", html_to_content(self.description_html)
json.field "descriptionHtml", self.description_html
json.field "viewCount", self.views
json.field "published", self.published.to_unix
json.field "publishedText", translate(locale, "`x` ago", recode_date(self.published, locale))
json.field "lengthSeconds", self.length_seconds
json.field "liveNow", self.live_now
json.field "premium", self.premium
json.field "isUpcoming", self.is_upcoming
if self.premiere_timestamp
json.field "premiereTimestamp", self.premiere_timestamp.try &.to_unix
end
end
end
def to_json(locale, json : JSON::Builder | Nil = nil)
if json
to_json(locale, json)
else
JSON.build do |json|
to_json(locale, json)
end
end
end
def is_upcoming
premiere_timestamp ? true : false
end
end
struct SearchPlaylistVideo
include DB::Serializable
property title : String
property id : String
property length_seconds : Int32
end
struct SearchPlaylist
include DB::Serializable
property title : String
property id : String
property author : String
property ucid : String
property video_count : Int32
property videos : Array(SearchPlaylistVideo)
property thumbnail : String?
def to_json(locale, json : JSON::Builder)
json.object do
json.field "type", "playlist"
json.field "title", self.title
json.field "playlistId", self.id
json.field "playlistThumbnail", self.thumbnail
json.field "author", self.author
json.field "authorId", self.ucid
json.field "authorUrl", "/channel/#{self.ucid}"
json.field "videoCount", self.video_count
json.field "videos" do
json.array do
self.videos.each do |video|
json.object do
json.field "title", video.title
json.field "videoId", video.id
json.field "lengthSeconds", video.length_seconds
json.field "videoThumbnails" do
generate_thumbnails(json, video.id)
end
end
end
end
end
end
end
def to_json(locale, json : JSON::Builder | Nil = nil)
if json
to_json(locale, json)
else
JSON.build do |json|
to_json(locale, json)
end
end
end
end
struct SearchChannel
include DB::Serializable
property author : String
property ucid : String
property author_thumbnail : String
property subscriber_count : Int32
property video_count : Int32
property description_html : String
property auto_generated : Bool
def to_json(locale, json : JSON::Builder)
json.object do
json.field "type", "channel"
json.field "author", self.author
json.field "authorId", self.ucid
json.field "authorUrl", "/channel/#{self.ucid}"
json.field "authorThumbnails" do
json.array do
qualities = {32, 48, 76, 100, 176, 512}
qualities.each do |quality|
json.object do
json.field "url", self.author_thumbnail.gsub(/=\d+/, "=s#{quality}")
json.field "width", quality
json.field "height", quality
end
end
end
end
json.field "autoGenerated", self.auto_generated
json.field "subCount", self.subscriber_count
json.field "videoCount", self.video_count
json.field "description", html_to_content(self.description_html)
json.field "descriptionHtml", self.description_html
end
end
def to_json(locale, json : JSON::Builder | Nil = nil)
if json
to_json(locale, json)
else
JSON.build do |json|
to_json(locale, json)
end
end
end
end
class Category
include DB::Serializable
property title : String
property contents : Array(SearchItem) | Array(Video)
property url : String?
property description_html : String
property badges : Array(Tuple(String, String))?
def to_json(locale, json : JSON::Builder)
json.object do
json.field "title", self.title
json.field "contents", self.contents
end
end
def to_json(locale, json : JSON::Builder | Nil = nil)
if json
to_json(locale, json)
else
JSON.build do |json|
to_json(locale, json)
end
end
end
end
alias SearchItem = SearchVideo | SearchChannel | SearchPlaylist | Category

247
src/invidious/search.cr
View File

@ -1,233 +1,3 @@
struct SearchVideo
include DB::Serializable
property title : String
property id : String
property author : String
property ucid : String
property published : Time
property views : Int64
property description_html : String
property length_seconds : Int32
property live_now : Bool
property premium : Bool
property premiere_timestamp : Time?
def to_xml(auto_generated, query_params, xml : XML::Builder)
query_params["v"] = self.id
xml.element("entry") do
xml.element("id") { xml.text "yt:video:#{self.id}" }
xml.element("yt:videoId") { xml.text self.id }
xml.element("yt:channelId") { xml.text self.ucid }
xml.element("title") { xml.text self.title }
xml.element("link", rel: "alternate", href: "#{HOST_URL}/watch?#{query_params}")
xml.element("author") do
if auto_generated
xml.element("name") { xml.text self.author }
xml.element("uri") { xml.text "#{HOST_URL}/channel/#{self.ucid}" }
else
xml.element("name") { xml.text author }
xml.element("uri") { xml.text "#{HOST_URL}/channel/#{ucid}" }
end
end
xml.element("content", type: "xhtml") do
xml.element("div", xmlns: "http://www.w3.org/1999/xhtml") do
xml.element("a", href: "#{HOST_URL}/watch?#{query_params}") do
xml.element("img", src: "#{HOST_URL}/vi/#{self.id}/mqdefault.jpg")
end
xml.element("p", style: "word-break:break-word;white-space:pre-wrap") { xml.text html_to_content(self.description_html) }
end
end
xml.element("published") { xml.text self.published.to_s("%Y-%m-%dT%H:%M:%S%:z") }
xml.element("media:group") do
xml.element("media:title") { xml.text self.title }
xml.element("media:thumbnail", url: "#{HOST_URL}/vi/#{self.id}/mqdefault.jpg",
width: "320", height: "180")
xml.element("media:description") { xml.text html_to_content(self.description_html) }
end
xml.element("media:community") do
xml.element("media:statistics", views: self.views)
end
end
end
def to_xml(auto_generated, query_params, xml : XML::Builder | Nil = nil)
if xml
to_xml(HOST_URL, auto_generated, query_params, xml)
else
XML.build do |json|
to_xml(HOST_URL, auto_generated, query_params, xml)
end
end
end
def to_json(locale, json : JSON::Builder)
json.object do
json.field "type", "video"
json.field "title", self.title
json.field "videoId", self.id
json.field "author", self.author
json.field "authorId", self.ucid
json.field "authorUrl", "/channel/#{self.ucid}"
json.field "videoThumbnails" do
generate_thumbnails(json, self.id)
end
json.field "description", html_to_content(self.description_html)
json.field "descriptionHtml", self.description_html
json.field "viewCount", self.views
json.field "published", self.published.to_unix
json.field "publishedText", translate(locale, "`x` ago", recode_date(self.published, locale))
json.field "lengthSeconds", self.length_seconds
json.field "liveNow", self.live_now
json.field "premium", self.premium
json.field "isUpcoming", self.is_upcoming
if self.premiere_timestamp
json.field "premiereTimestamp", self.premiere_timestamp.try &.to_unix
end
end
end
def to_json(locale, json : JSON::Builder | Nil = nil)
if json
to_json(locale, json)
else
JSON.build do |json|
to_json(locale, json)
end
end
end
def is_upcoming
premiere_timestamp ? true : false
end
end
struct SearchPlaylistVideo
include DB::Serializable
property title : String
property id : String
property length_seconds : Int32
end
struct SearchPlaylist
include DB::Serializable
property title : String
property id : String
property author : String
property ucid : String
property video_count : Int32
property videos : Array(SearchPlaylistVideo)
property thumbnail : String?
def to_json(locale, json : JSON::Builder)
json.object do
json.field "type", "playlist"
json.field "title", self.title
json.field "playlistId", self.id
json.field "playlistThumbnail", self.thumbnail
json.field "author", self.author
json.field "authorId", self.ucid
json.field "authorUrl", "/channel/#{self.ucid}"
json.field "videoCount", self.video_count
json.field "videos" do
json.array do
self.videos.each do |video|
json.object do
json.field "title", video.title
json.field "videoId", video.id
json.field "lengthSeconds", video.length_seconds
json.field "videoThumbnails" do
generate_thumbnails(json, video.id)
end
end
end
end
end
end
end
def to_json(locale, json : JSON::Builder | Nil = nil)
if json
to_json(locale, json)
else
JSON.build do |json|
to_json(locale, json)
end
end
end
end
struct SearchChannel
include DB::Serializable
property author : String
property ucid : String
property author_thumbnail : String
property subscriber_count : Int32
property video_count : Int32
property description_html : String
property auto_generated : Bool
def to_json(locale, json : JSON::Builder)
json.object do
json.field "type", "channel"
json.field "author", self.author
json.field "authorId", self.ucid
json.field "authorUrl", "/channel/#{self.ucid}"
json.field "authorThumbnails" do
json.array do
qualities = {32, 48, 76, 100, 176, 512}
qualities.each do |quality|
json.object do
json.field "url", self.author_thumbnail.gsub(/=\d+/, "=s#{quality}")
json.field "width", quality
json.field "height", quality
end
end
end
end
json.field "autoGenerated", self.auto_generated
json.field "subCount", self.subscriber_count
json.field "videoCount", self.video_count
json.field "description", html_to_content(self.description_html)
json.field "descriptionHtml", self.description_html
end
end
def to_json(locale, json : JSON::Builder | Nil = nil)
if json
to_json(locale, json)
else
JSON.build do |json|
to_json(locale, json)
end
end
end
end
alias SearchItem = SearchVideo | SearchChannel | SearchPlaylist
def channel_search(query, page, channel)
response = YT_POOL.client &.get("/channel/#{channel}")
@ -462,5 +232,20 @@ def process_search_query(query, page, user, region)
count, items = search(search_query, search_params, region).as(Tuple)
end
{search_query, count, items, operators}
# Light processing to flatten search results out of Categories.
# They should ideally be supported in the future.
items_without_category = [] of SearchItem | ChannelVideo
items.each do |i|
if i.is_a? Category
i.contents.each do |nest_i|
if !nest_i.is_a? Video
items_without_category << nest_i
end
end
else
items_without_category << i
end
end
{search_query, items_without_category.size, items_without_category, operators}
end

2
src/invidious/videos.cr
View File

@ -275,7 +275,7 @@ struct Video
end
end
def to_json(locale, json : JSON::Builder)
def to_json(locale : Hash(String, JSON::Any), json : JSON::Builder)
json.object do
json.field "type", "video"

1
src/invidious/views/components/item.ecr
View File

@ -109,6 +109,7 @@
</div>
<% end %>
</div>
<% when Category %>
<% else %>
<a style="width:100%" href="/watch?v=<%= item.id %>">
<% if !env.get("preferences").as(Preferences).thin_mode %>