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Extract API routes from invidious.cr (1/?)

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syeopite 2021-07-21 21:34:16 -07:00
parent 0b0036813f
commit cbf3d75087
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6 changed files with 744 additions and 711 deletions
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src/invidious.cr
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@ -363,6 +363,8 @@ Invidious::Routing.get "/preferences", Invidious::Routes::PreferencesRoute, :sho
Invidious::Routing.post "/preferences", Invidious::Routes::PreferencesRoute, :update Invidious::Routing.post "/preferences", Invidious::Routes::PreferencesRoute, :update
Invidious::Routing.get "/toggle_theme", Invidious::Routes::PreferencesRoute, :toggle_theme Invidious::Routing.get "/toggle_theme", Invidious::Routes::PreferencesRoute, :toggle_theme
define_v1_api_routes()
# Users # Users
post "/watch_ajax" do |env| post "/watch_ajax" do |env|
@ -1637,365 +1639,6 @@ end
# API Endpoints # API Endpoints
get "/api/v1/stats" do |env|
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
if !CONFIG.statistics_enabled
next error_json(400, "Statistics are not enabled.")
end
Invidious::Jobs::StatisticsRefreshJob::STATISTICS.to_json
end
# YouTube provides "storyboards", which are sprites containing x * y
# preview thumbnails for individual scenes in a video.
# See https://support.jwplayer.com/articles/how-to-add-preview-thumbnails
get "/api/v1/storyboards/:id" do |env|
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
id = env.params.url["id"]
region = env.params.query["region"]?
begin
video = get_video(id, PG_DB, region: region)
rescue ex : VideoRedirect
env.response.headers["Location"] = env.request.resource.gsub(id, ex.video_id)
next error_json(302, "Video is unavailable", {"videoId" => ex.video_id})
rescue ex
env.response.status_code = 500
next
end
storyboards = video.storyboards
width = env.params.query["width"]?
height = env.params.query["height"]?
if !width && !height
response = JSON.build do |json|
json.object do
json.field "storyboards" do
generate_storyboards(json, id, storyboards)
end
end
end
next response
end
env.response.content_type = "text/vtt"
storyboard = storyboards.select { |storyboard| width == "#{storyboard[:width]}" || height == "#{storyboard[:height]}" }
if storyboard.empty?
env.response.status_code = 404
next
else
storyboard = storyboard[0]
end
String.build do |str|
str << <<-END_VTT
WEBVTT
END_VTT
start_time = 0.milliseconds
end_time = storyboard[:interval].milliseconds
storyboard[:storyboard_count].times do |i|
url = storyboard[:url]
authority = /(i\d?).ytimg.com/.match(url).not_nil![1]?
url = url.gsub("$M", i).gsub(%r(https://i\d?.ytimg.com/sb/), "")
url = "#{HOST_URL}/sb/#{authority}/#{url}"
storyboard[:storyboard_height].times do |j|
storyboard[:storyboard_width].times do |k|
str << <<-END_CUE
#{start_time}.000 --> #{end_time}.000
#{url}#xywh=#{storyboard[:width] * k},#{storyboard[:height] * j},#{storyboard[:width] - 2},#{storyboard[:height]}
END_CUE
start_time += storyboard[:interval].milliseconds
end_time += storyboard[:interval].milliseconds
end
end
end
end
end
get "/api/v1/captions/:id" do |env|
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
id = env.params.url["id"]
region = env.params.query["region"]?
# See https://github.com/ytdl-org/youtube-dl/blob/6ab30ff50bf6bd0585927cb73c7421bef184f87a/youtube_dl/extractor/youtube.py#L1354
# It is possible to use `/api/timedtext?type=list&v=#{id}` and
# `/api/timedtext?type=track&v=#{id}&lang=#{lang_code}` directly,
# but this does not provide links for auto-generated captions.
#
# In future this should be investigated as an alternative, since it does not require
# getting video info.
begin
video = get_video(id, PG_DB, region: region)
rescue ex : VideoRedirect
env.response.headers["Location"] = env.request.resource.gsub(id, ex.video_id)
next error_json(302, "Video is unavailable", {"videoId" => ex.video_id})
rescue ex
env.response.status_code = 500
next
end
captions = video.captions
label = env.params.query["label"]?
lang = env.params.query["lang"]?
tlang = env.params.query["tlang"]?
if !label && !lang
response = JSON.build do |json|
json.object do
json.field "captions" do
json.array do
captions.each do |caption|
json.object do
json.field "label", caption.name
json.field "languageCode", caption.languageCode
json.field "url", "/api/v1/captions/#{id}?label=#{URI.encode_www_form(caption.name)}"
end
end
end
end
end
end
next response
end
env.response.content_type = "text/vtt; charset=UTF-8"
if lang
caption = captions.select { |caption| caption.languageCode == lang }
else
caption = captions.select { |caption| caption.name == label }
end
if caption.empty?
env.response.status_code = 404
next
else
caption = caption[0]
end
url = URI.parse("#{caption.baseUrl}&tlang=#{tlang}").request_target
# Auto-generated captions often have cues that aren't aligned properly with the video,
# as well as some other markup that makes it cumbersome, so we try to fix that here
if caption.name.includes? "auto-generated"
caption_xml = YT_POOL.client &.get(url).body
caption_xml = XML.parse(caption_xml)
webvtt = String.build do |str|
str << <<-END_VTT
WEBVTT
Kind: captions
Language: #{tlang || caption.languageCode}
END_VTT
caption_nodes = caption_xml.xpath_nodes("//transcript/text")
caption_nodes.each_with_index do |node, i|
start_time = node["start"].to_f.seconds
duration = node["dur"]?.try &.to_f.seconds
duration ||= start_time
if caption_nodes.size > i + 1
end_time = caption_nodes[i + 1]["start"].to_f.seconds
else
end_time = start_time + duration
end
start_time = "#{start_time.hours.to_s.rjust(2, '0')}:#{start_time.minutes.to_s.rjust(2, '0')}:#{start_time.seconds.to_s.rjust(2, '0')}.#{start_time.milliseconds.to_s.rjust(3, '0')}"
end_time = "#{end_time.hours.to_s.rjust(2, '0')}:#{end_time.minutes.to_s.rjust(2, '0')}:#{end_time.seconds.to_s.rjust(2, '0')}.#{end_time.milliseconds.to_s.rjust(3, '0')}"
text = HTML.unescape(node.content)
text = text.gsub(/<font color="#[a-fA-F0-9]{6}">/, "")
text = text.gsub(/<\/font>/, "")
if md = text.match(/(?<name>.*) : (?<text>.*)/)
text = "<v #{md["name"]}>#{md["text"]}</v>"
end
str << <<-END_CUE
#{start_time} --> #{end_time}
#{text}
END_CUE
end
end
else
webvtt = YT_POOL.client &.get("#{url}&format=vtt").body
end
if title = env.params.query["title"]?
# https://blog.fastmail.com/2011/06/24/download-non-english-filenames/
env.response.headers["Content-Disposition"] = "attachment; filename=\"#{URI.encode_www_form(title)}\"; filename*=UTF-8''#{URI.encode_www_form(title)}"
end
webvtt
end
get "/api/v1/comments/:id" do |env|
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
region = env.params.query["region"]?
env.response.content_type = "application/json"
id = env.params.url["id"]
source = env.params.query["source"]?
source ||= "youtube"
thin_mode = env.params.query["thin_mode"]?
thin_mode = thin_mode == "true"
format = env.params.query["format"]?
format ||= "json"
continuation = env.params.query["continuation"]?
sort_by = env.params.query["sort_by"]?.try &.downcase
if source == "youtube"
sort_by ||= "top"
begin
comments = fetch_youtube_comments(id, continuation, format, locale, thin_mode, region, sort_by: sort_by)
rescue ex
next error_json(500, ex)
end
next comments
elsif source == "reddit"
sort_by ||= "confidence"
begin
comments, reddit_thread = fetch_reddit_comments(id, sort_by: sort_by)
content_html = template_reddit_comments(comments, locale)
content_html = fill_links(content_html, "https", "www.reddit.com")
content_html = replace_links(content_html)
rescue ex
comments = nil
reddit_thread = nil
content_html = ""
end
if !reddit_thread || !comments
env.response.status_code = 404
next
end
if format == "json"
reddit_thread = JSON.parse(reddit_thread.to_json).as_h
reddit_thread["comments"] = JSON.parse(comments.to_json)
next reddit_thread.to_json
else
response = {
"title" => reddit_thread.title,
"permalink" => reddit_thread.permalink,
"contentHtml" => content_html,
}
next response.to_json
end
end
end
get "/api/v1/annotations/:id" do |env|
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "text/xml"
id = env.params.url["id"]
source = env.params.query["source"]?
source ||= "archive"
if !id.match(/[a-zA-Z0-9_-]{11}/)
env.response.status_code = 400
next
end
annotations = ""
case source
when "archive"
if CONFIG.cache_annotations && (cached_annotation = PG_DB.query_one?("SELECT * FROM annotations WHERE id = $1", id, as: Annotation))
annotations = cached_annotation.annotations
else
index = CHARS_SAFE.index(id[0]).not_nil!.to_s.rjust(2, '0')
# IA doesn't handle leading hyphens,
# so we use https://archive.org/details/youtubeannotations_64
if index == "62"
index = "64"
id = id.sub(/^-/, 'A')
end
file = URI.encode_www_form("#{id[0, 3]}/#{id}.xml")
location = make_client(ARCHIVE_URL, &.get("/download/youtubeannotations_#{index}/#{id[0, 2]}.tar/#{file}"))
if !location.headers["Location"]?
env.response.status_code = location.status_code
end
response = make_client(URI.parse(location.headers["Location"]), &.get(location.headers["Location"]))
if response.body.empty?
env.response.status_code = 404
next
end
if response.status_code != 200
env.response.status_code = response.status_code
next
end
annotations = response.body
cache_annotation(PG_DB, id, annotations)
end
else # "youtube"
response = YT_POOL.client &.get("/annotations_invideo?video_id=#{id}")
if response.status_code != 200
env.response.status_code = response.status_code
next
end
annotations = response.body
end
etag = sha256(annotations)[0, 16]
if env.request.headers["If-None-Match"]?.try &.== etag
env.response.status_code = 304
else
env.response.headers["ETag"] = etag
annotations
end
end
get "/api/v1/videos/:id" do |env| get "/api/v1/videos/:id" do |env|
locale = LOCALES[env.get("preferences").as(Preferences).locale]? locale = LOCALES[env.get("preferences").as(Preferences).locale]?
@ -2016,324 +1659,6 @@ get "/api/v1/videos/:id" do |env|
video.to_json(locale) video.to_json(locale)
end end
get "/api/v1/trending" do |env|
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
region = env.params.query["region"]?
trending_type = env.params.query["type"]?
begin
trending, plid = fetch_trending(trending_type, region, locale)
rescue ex
next error_json(500, ex)
end
videos = JSON.build do |json|
json.array do
trending.each do |video|
video.to_json(locale, json)
end
end
end
videos
end
get "/api/v1/popular" do |env|
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
if !CONFIG.popular_enabled
error_message = {"error" => "Administrator has disabled this endpoint."}.to_json
env.response.status_code = 400
next error_message
end
JSON.build do |json|
json.array do
popular_videos.each do |video|
video.to_json(locale, json)
end
end
end
end
get "/api/v1/channels/:ucid" do |env|
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
ucid = env.params.url["ucid"]
sort_by = env.params.query["sort_by"]?.try &.downcase
sort_by ||= "newest"
begin
channel = get_about_info(ucid, locale)
rescue ex : ChannelRedirect
env.response.headers["Location"] = env.request.resource.gsub(ucid, ex.channel_id)
next error_json(302, "Channel is unavailable", {"authorId" => ex.channel_id})
rescue ex
next error_json(500, ex)
end
page = 1
if channel.auto_generated
videos = [] of SearchVideo
count = 0
else
begin
count, videos = get_60_videos(channel.ucid, channel.author, page, channel.auto_generated, sort_by)
rescue ex
next error_json(500, ex)
end
end
JSON.build do |json|
# TODO: Refactor into `to_json` for InvidiousChannel
json.object do
json.field "author", channel.author
json.field "authorId", channel.ucid
json.field "authorUrl", channel.author_url
json.field "authorBanners" do
json.array do
if channel.banner
qualities = {
{width: 2560, height: 424},
{width: 2120, height: 351},
{width: 1060, height: 175},
}
qualities.each do |quality|
json.object do
json.field "url", channel.banner.not_nil!.gsub("=w1060-", "=w#{quality[:width]}-")
json.field "width", quality[:width]
json.field "height", quality[:height]
end
end
json.object do
json.field "url", channel.banner.not_nil!.split("=w1060-")[0]
json.field "width", 512
json.field "height", 288
end
end
end
end
json.field "authorThumbnails" do
json.array do
qualities = {32, 48, 76, 100, 176, 512}
qualities.each do |quality|
json.object do
json.field "url", channel.author_thumbnail.gsub(/=s\d+/, "=s#{quality}")
json.field "width", quality
json.field "height", quality
end
end
end
end
json.field "subCount", channel.sub_count
json.field "totalViews", channel.total_views
json.field "joined", channel.joined.to_unix
json.field "autoGenerated", channel.auto_generated
json.field "isFamilyFriendly", channel.is_family_friendly
json.field "description", html_to_content(channel.description_html)
json.field "descriptionHtml", channel.description_html
json.field "allowedRegions", channel.allowed_regions
json.field "latestVideos" do
json.array do
videos.each do |video|
video.to_json(locale, json)
end
end
end
json.field "relatedChannels" do
json.array do
channel.related_channels.each do |related_channel|
json.object do
json.field "author", related_channel.author
json.field "authorId", related_channel.ucid
json.field "authorUrl", related_channel.author_url
json.field "authorThumbnails" do
json.array do
qualities = {32, 48, 76, 100, 176, 512}
qualities.each do |quality|
json.object do
json.field "url", related_channel.author_thumbnail.gsub(/=\d+/, "=s#{quality}")
json.field "width", quality
json.field "height", quality
end
end
end
end
end
end
end
end
end
end
end
{"/api/v1/channels/:ucid/videos", "/api/v1/channels/videos/:ucid"}.each do |route|
get route do |env|
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
ucid = env.params.url["ucid"]
page = env.params.query["page"]?.try &.to_i?
page ||= 1
sort_by = env.params.query["sort"]?.try &.downcase
sort_by ||= env.params.query["sort_by"]?.try &.downcase
sort_by ||= "newest"
begin
channel = get_about_info(ucid, locale)
rescue ex : ChannelRedirect
env.response.headers["Location"] = env.request.resource.gsub(ucid, ex.channel_id)
next error_json(302, "Channel is unavailable", {"authorId" => ex.channel_id})
rescue ex
next error_json(500, ex)
end
begin
count, videos = get_60_videos(channel.ucid, channel.author, page, channel.auto_generated, sort_by)
rescue ex
next error_json(500, ex)
end
JSON.build do |json|
json.array do
videos.each do |video|
video.to_json(locale, json)
end
end
end
end
end
{"/api/v1/channels/:ucid/latest", "/api/v1/channels/latest/:ucid"}.each do |route|
get route do |env|
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
ucid = env.params.url["ucid"]
begin
videos = get_latest_videos(ucid)
rescue ex
next error_json(500, ex)
end
JSON.build do |json|
json.array do
videos.each do |video|
video.to_json(locale, json)
end
end
end
end
end
{"/api/v1/channels/:ucid/playlists", "/api/v1/channels/playlists/:ucid"}.each do |route|
get route do |env|
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
ucid = env.params.url["ucid"]
continuation = env.params.query["continuation"]?
sort_by = env.params.query["sort"]?.try &.downcase ||
env.params.query["sort_by"]?.try &.downcase ||
"last"
begin
channel = get_about_info(ucid, locale)
rescue ex : ChannelRedirect
env.response.headers["Location"] = env.request.resource.gsub(ucid, ex.channel_id)
next error_json(302, "Channel is unavailable", {"authorId" => ex.channel_id})
rescue ex
next error_json(500, ex)
end
items, continuation = fetch_channel_playlists(channel.ucid, channel.author, continuation, sort_by)
JSON.build do |json|
json.object do
json.field "playlists" do
json.array do
items.each do |item|
item.to_json(locale, json) if item.is_a?(SearchPlaylist)
end
end
end
json.field "continuation", continuation
end
end
end
end
{"/api/v1/channels/:ucid/comments", "/api/v1/channels/comments/:ucid"}.each do |route|
get route do |env|
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
ucid = env.params.url["ucid"]
thin_mode = env.params.query["thin_mode"]?
thin_mode = thin_mode == "true"
format = env.params.query["format"]?
format ||= "json"
continuation = env.params.query["continuation"]?
# sort_by = env.params.query["sort_by"]?.try &.downcase
begin
fetch_channel_community(ucid, continuation, locale, format, thin_mode)
rescue ex
next error_json(500, ex)
end
end
end
get "/api/v1/channels/search/:ucid" do |env|
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
ucid = env.params.url["ucid"]
query = env.params.query["q"]?
query ||= ""
page = env.params.query["page"]?.try &.to_i?
page ||= 1
count, search_results = channel_search(query, page, ucid)
JSON.build do |json|
json.array do
search_results.each do |item|
item.to_json(locale, json)
end
end
end
end
get "/api/v1/search" do |env| get "/api/v1/search" do |env|
locale = LOCALES[env.get("preferences").as(Preferences).locale]? locale = LOCALES[env.get("preferences").as(Preferences).locale]?
region = env.params.query["region"]? region = env.params.query["region"]?
@ -2377,40 +1702,6 @@ get "/api/v1/search" do |env|
end end
end end
get "/api/v1/search/suggestions" do |env|
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
region = env.params.query["region"]?
env.response.content_type = "application/json"
query = env.params.query["q"]?
query ||= ""
begin
headers = HTTP::Headers{":authority" => "suggestqueries.google.com"}
response = YT_POOL.client &.get("/complete/search?hl=en&gl=#{region}&client=youtube&ds=yt&q=#{URI.encode_www_form(query)}&callback=suggestCallback", headers).body
body = response[35..-2]
body = JSON.parse(body).as_a
suggestions = body[1].as_a[0..-2]
JSON.build do |json|
json.object do
json.field "query", body[0].as_s
json.field "suggestions" do
json.array do
suggestions.each do |suggestion|
json.string suggestion[0].as_s
end
end
end
end
end
rescue ex
next error_json(500, ex)
end
end
{"/api/v1/playlists/:plid", "/api/v1/auth/playlists/:plid"}.each do |route| {"/api/v1/playlists/:plid", "/api/v1/auth/playlists/:plid"}.each do |route|
get route do |env| get route do |env|
locale = LOCALES[env.get("preferences").as(Preferences).locale]? locale = LOCALES[env.get("preferences").as(Preferences).locale]?

267
src/invidious/routes/API/v1/channels.cr Normal file
View File

@ -0,0 +1,267 @@
class Invidious::Routes::V1Api < Invidious::Routes::BaseRoute
def home(env)
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
ucid = env.params.url["ucid"]
sort_by = env.params.query["sort_by"]?.try &.downcase
sort_by ||= "newest"
begin
channel = get_about_info(ucid, locale)
rescue ex : ChannelRedirect
env.response.headers["Location"] = env.request.resource.gsub(ucid, ex.channel_id)
return error_json(302, "Channel is unavailable", {"authorId" => ex.channel_id})
rescue ex
return error_json(500, ex)
end
page = 1
if channel.auto_generated
videos = [] of SearchVideo
count = 0
else
begin
count, videos = get_60_videos(channel.ucid, channel.author, page, channel.auto_generated, sort_by)
rescue ex
return error_json(500, ex)
end
end
JSON.build do |json|
# TODO: Refactor into `to_json` for InvidiousChannel
json.object do
json.field "author", channel.author
json.field "authorId", channel.ucid
json.field "authorUrl", channel.author_url
json.field "authorBanners" do
json.array do
if channel.banner
qualities = {
{width: 2560, height: 424},
{width: 2120, height: 351},
{width: 1060, height: 175},
}
qualities.each do |quality|
json.object do
json.field "url", channel.banner.not_nil!.gsub("=w1060-", "=w#{quality[:width]}-")
json.field "width", quality[:width]
json.field "height", quality[:height]
end
end
json.object do
json.field "url", channel.banner.not_nil!.split("=w1060-")[0]
json.field "width", 512
json.field "height", 288
end
end
end
end
json.field "authorThumbnails" do
json.array do
qualities = {32, 48, 76, 100, 176, 512}
qualities.each do |quality|
json.object do
json.field "url", channel.author_thumbnail.gsub(/=s\d+/, "=s#{quality}")
json.field "width", quality
json.field "height", quality
end
end
end
end
json.field "subCount", channel.sub_count
json.field "totalViews", channel.total_views
json.field "joined", channel.joined.to_unix
json.field "paid", channel.paid
json.field "autoGenerated", channel.auto_generated
json.field "isFamilyFriendly", channel.is_family_friendly
json.field "description", html_to_content(channel.description_html)
json.field "descriptionHtml", channel.description_html
json.field "allowedRegions", channel.allowed_regions
json.field "latestVideos" do
json.array do
videos.each do |video|
video.to_json(locale, json)
end
end
end
json.field "relatedChannels" do
json.array do
channel.related_channels.each do |related_channel|
json.object do
json.field "author", related_channel.author
json.field "authorId", related_channel.ucid
json.field "authorUrl", related_channel.author_url
json.field "authorThumbnails" do
json.array do
qualities = {32, 48, 76, 100, 176, 512}
qualities.each do |quality|
json.object do
json.field "url", related_channel.author_thumbnail.gsub(/=\d+/, "=s#{quality}")
json.field "width", quality
json.field "height", quality
end
end
end
end
end
end
end
end
end
end
end
def latest(env)
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
ucid = env.params.url["ucid"]
begin
videos = get_latest_videos(ucid)
rescue ex
return error_json(500, ex)
end
JSON.build do |json|
json.array do
videos.each do |video|
video.to_json(locale, json)
end
end
end
end
def videos(env)
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
ucid = env.params.url["ucid"]
page = env.params.query["page"]?.try &.to_i?
page ||= 1
sort_by = env.params.query["sort"]?.try &.downcase
sort_by ||= env.params.query["sort_by"]?.try &.downcase
sort_by ||= "newest"
begin
channel = get_about_info(ucid, locale)
rescue ex : ChannelRedirect
env.response.headers["Location"] = env.request.resource.gsub(ucid, ex.channel_id)
return error_json(302, "Channel is unavailable", {"authorId" => ex.channel_id})
rescue ex
return error_json(500, ex)
end
begin
count, videos = get_60_videos(channel.ucid, channel.author, page, channel.auto_generated, sort_by)
rescue ex
return error_json(500, ex)
end
JSON.build do |json|
json.array do
videos.each do |video|
video.to_json(locale, json)
end
end
end
end
def playlists(env)
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
ucid = env.params.url["ucid"]
continuation = env.params.query["continuation"]?
sort_by = env.params.query["sort"]?.try &.downcase ||
env.params.query["sort_by"]?.try &.downcase ||
"last"
begin
channel = get_about_info(ucid, locale)
rescue ex : ChannelRedirect
env.response.headers["Location"] = env.request.resource.gsub(ucid, ex.channel_id)
return error_json(302, "Channel is unavailable", {"authorId" => ex.channel_id})
rescue ex
return error_json(500, ex)
end
items, continuation = fetch_channel_playlists(channel.ucid, channel.author, continuation, sort_by)
JSON.build do |json|
json.object do
json.field "playlists" do
json.array do
items.each do |item|
item.to_json(locale, json) if item.is_a?(SearchPlaylist)
end
end
end
json.field "continuation", continuation
end
end
end
def community(env)
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
ucid = env.params.url["ucid"]
thin_mode = env.params.query["thin_mode"]?
thin_mode = thin_mode == "true"
format = env.params.query["format"]?
format ||= "json"
continuation = env.params.query["continuation"]?
# sort_by = env.params.query["sort_by"]?.try &.downcase
begin
fetch_channel_community(ucid, continuation, locale, format, thin_mode)
rescue ex
return error_json(500, ex)
end
end
def channel_search(env)
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
ucid = env.params.url["ucid"]
query = env.params.query["q"]?
query ||= ""
page = env.params.query["page"]?.try &.to_i?
page ||= 1
count, search_results = channel_search(query, page, ucid)
JSON.build do |json|
json.array do
search_results.each do |item|
item.to_json(locale, json)
end
end
end
end
end

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class Invidious::Routes::V1Api < Invidious::Routes::BaseRoute
def comments(env)
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
region = env.params.query["region"]?
env.response.content_type = "application/json"
id = env.params.url["id"]
source = env.params.query["source"]?
source ||= "youtube"
thin_mode = env.params.query["thin_mode"]?
thin_mode = thin_mode == "true"
format = env.params.query["format"]?
format ||= "json"
action = env.params.query["action"]?
action ||= "action_get_comments"
continuation = env.params.query["continuation"]?
sort_by = env.params.query["sort_by"]?.try &.downcase
if source == "youtube"
sort_by ||= "top"
begin
comments = fetch_youtube_comments(id, PG_DB, continuation, format, locale, thin_mode, region, sort_by: sort_by, action: action)
rescue ex
return error_json(500, ex)
end
return comments
elsif source == "reddit"
sort_by ||= "confidence"
begin
comments, reddit_thread = fetch_reddit_comments(id, sort_by: sort_by)
content_html = template_reddit_comments(comments, locale)
content_html = fill_links(content_html, "https", "www.reddit.com")
content_html = replace_links(content_html)
rescue ex
comments = nil
reddit_thread = nil
content_html = ""
end
if !reddit_thread || !comments
env.response.status_code = 404
return
end
if format == "json"
reddit_thread = JSON.parse(reddit_thread.to_json).as_h
reddit_thread["comments"] = JSON.parse(comments.to_json)
return reddit_thread.to_json
else
response = {
"title" => reddit_thread.title,
"permalink" => reddit_thread.permalink,
"contentHtml" => content_html,
}
return response.to_json
end
end
end
def trending(env)
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
region = env.params.query["region"]?
trending_type = env.params.query["type"]?
begin
trending, plid = fetch_trending(trending_type, region, locale)
rescue ex
return error_json(500, ex)
end
videos = JSON.build do |json|
json.array do
trending.each do |video|
video.to_json(locale, json)
end
end
end
videos
end
def popular(env)
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
if !CONFIG.popular_enabled
error_message = {"error" => "Administrator has disabled this endpoint."}.to_json
env.response.status_code = 400
return error_message
end
JSON.build do |json|
json.array do
popular_videos.each do |video|
video.to_json(locale, json)
end
end
end
end
end

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class Invidious::Routes::V1Api < Invidious::Routes::BaseRoute
# Stats API endpoint for Invidious
def stats(env)
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
if !CONFIG.statistics_enabled
return error_json(400, "Statistics are not enabled.")
end
Invidious::Jobs::StatisticsRefreshJob::STATISTICS.to_json
end
end

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# There is far too many API routes to define in invidious.cr
# so we'll just do it here instead with a macro.
macro define_v1_api_routes(base_url = "/api/v1")
Invidious::Routing.get "#{{{base_url}}}/stats", Invidious::Routes::V1Api, :stats
Invidious::Routing.get "#{{{base_url}}}/storyboards/:id", Invidious::Routes::V1Api, :storyboards
Invidious::Routing.get "#{{{base_url}}}/captions/:id", Invidious::Routes::V1Api, :captions
Invidious::Routing.get "#{{{base_url}}}/annotations/:id", Invidious::Routes::V1Api, :annotations
Invidious::Routing.get "#{{{base_url}}}/search/suggestions/:id", Invidious::Routes::V1Api, :search_suggestions
Invidious::Routing.get "#{{{base_url}}}/comments/:id", Invidious::Routes::V1Api, :comments
Invidious::Routing.get "#{{{base_url}}}/trending", Invidious::Routes::V1Api, :trending
Invidious::Routing.get "#{{{base_url}}}/popular", Invidious::Routes::V1Api, :popular
Invidious::Routing.get "#{{{base_url}}}/channels/:ucid", Invidious::Routes::V1Api, :home
{% for route in {
{"home", "home"},
{"videos", "videos"},
{"latest", "latest"},
{"playlists", "playlists"},
{"comments", "community"}, # Why is the route for the community API `comments`?,
{"search", "channel_search"},
} %}
Invidious::Routing.get "#{{{base_url}}}/channels/#{{{route[0]}}}/:ucid", Invidious::Routes::V1Api, :{{route[1]}}
Invidious::Routing.get "#{{{base_url}}}/channels/:ucid/#{{{route[0]}}}", Invidious::Routes::V1Api, :{{route[1]}}
{% end %}
end

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class Invidious::Routes::V1Api < Invidious::Routes::BaseRoute
# Fetches YouTube storyboards
#
# Which are sprites containing x * y preview
# thumbnails for individual scenes in a video.
# See https://support.jwplayer.com/articles/how-to-add-preview-thumbnails
def storyboards(env)
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
id = env.params.url["id"]
region = env.params.query["region"]?
begin
video = get_video(id, PG_DB, region: region)
rescue ex : VideoRedirect
env.response.headers["Location"] = env.request.resource.gsub(id, ex.video_id)
return error_json(302, "Video is unavailable", {"videoId" => ex.video_id})
rescue ex
env.response.status_code = 500
return
end
storyboards = video.storyboards
width = env.params.query["width"]?
height = env.params.query["height"]?
if !width && !height
response = JSON.build do |json|
json.object do
json.field "storyboards" do
generate_storyboards(json, id, storyboards)
end
end
end
return response
end
env.response.content_type = "text/vtt"
storyboard = storyboards.select { |storyboard| width == "#{storyboard[:width]}" || height == "#{storyboard[:height]}" }
if storyboard.empty?
env.response.status_code = 404
return
else
storyboard = storyboard[0]
end
String.build do |str|
str << <<-END_VTT
WEBVTT
END_VTT
start_time = 0.milliseconds
end_time = storyboard[:interval].milliseconds
storyboard[:storyboard_count].times do |i|
url = storyboard[:url]
authority = /(i\d?).ytimg.com/.match(url).not_nil![1]?
url = url.gsub("$M", i).gsub(%r(https://i\d?.ytimg.com/sb/), "")
url = "#{HOST_URL}/sb/#{authority}/#{url}"
storyboard[:storyboard_height].times do |j|
storyboard[:storyboard_width].times do |k|
str << <<-END_CUE
#{start_time}.000 --> #{end_time}.000
#{url}#xywh=#{storyboard[:width] * k},#{storyboard[:height] * j},#{storyboard[:width] - 2},#{storyboard[:height]}
END_CUE
start_time += storyboard[:interval].milliseconds
end_time += storyboard[:interval].milliseconds
end
end
end
end
end
def captions(env)
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "application/json"
id = env.params.url["id"]
region = env.params.query["region"]?
# See https://github.com/ytdl-org/youtube-dl/blob/6ab30ff50bf6bd0585927cb73c7421bef184f87a/youtube_dl/extractor/youtube.py#L1354
# It is possible to use `/api/timedtext?type=list&v=#{id}` and
# `/api/timedtext?type=track&v=#{id}&lang=#{lang_code}` directly,
# but this does not provide links for auto-generated captions.
#
# In future this should be investigated as an alternative, since it does not require
# getting video info.
begin
video = get_video(id, PG_DB, region: region)
rescue ex : VideoRedirect
env.response.headers["Location"] = env.request.resource.gsub(id, ex.video_id)
return error_json(302, "Video is unavailable", {"videoId" => ex.video_id})
rescue ex
env.response.status_code = 500
return
end
captions = video.captions
label = env.params.query["label"]?
lang = env.params.query["lang"]?
tlang = env.params.query["tlang"]?
if !label && !lang
response = JSON.build do |json|
json.object do
json.field "captions" do
json.array do
captions.each do |caption|
json.object do
json.field "label", caption.name
json.field "languageCode", caption.languageCode
json.field "url", "/api/v1/captions/#{id}?label=#{URI.encode_www_form(caption.name)}"
end
end
end
end
end
end
return response
end
env.response.content_type = "text/vtt; charset=UTF-8"
if lang
caption = captions.select { |caption| caption.languageCode == lang }
else
caption = captions.select { |caption| caption.name == label }
end
if caption.empty?
env.response.status_code = 404
return
else
caption = caption[0]
end
url = URI.parse("#{caption.baseUrl}&tlang=#{tlang}").request_target
# Auto-generated captions often have cues that aren't aligned properly with the video,
# as well as some other markup that makes it cumbersome, so we try to fix that here
if caption.name.includes? "auto-generated"
caption_xml = YT_POOL.client &.get(url).body
caption_xml = XML.parse(caption_xml)
webvtt = String.build do |str|
str << <<-END_VTT
WEBVTT
Kind: captions
Language: #{tlang || caption.languageCode}
END_VTT
caption_nodes = caption_xml.xpath_nodes("//transcript/text")
caption_nodes.each_with_index do |node, i|
start_time = node["start"].to_f.seconds
duration = node["dur"]?.try &.to_f.seconds
duration ||= start_time
if caption_nodes.size > i + 1
end_time = caption_nodes[i + 1]["start"].to_f.seconds
else
end_time = start_time + duration
end
start_time = "#{start_time.hours.to_s.rjust(2, '0')}:#{start_time.minutes.to_s.rjust(2, '0')}:#{start_time.seconds.to_s.rjust(2, '0')}.#{start_time.milliseconds.to_s.rjust(3, '0')}"
end_time = "#{end_time.hours.to_s.rjust(2, '0')}:#{end_time.minutes.to_s.rjust(2, '0')}:#{end_time.seconds.to_s.rjust(2, '0')}.#{end_time.milliseconds.to_s.rjust(3, '0')}"
text = HTML.unescape(node.content)
text = text.gsub(/<font color="#[a-fA-F0-9]{6}">/, "")
text = text.gsub(/<\/font>/, "")
if md = text.match(/(?<name>.*) : (?<text>.*)/)
text = "<v #{md["name"]}>#{md["text"]}</v>"
end
str << <<-END_CUE
#{start_time} --> #{end_time}
#{text}
END_CUE
end
end
else
webvtt = YT_POOL.client &.get("#{url}&format=vtt").body
end
if title = env.params.query["title"]?
# https://blog.fastmail.com/2011/06/24/download-non-english-filenames/
env.response.headers["Content-Disposition"] = "attachment; filename=\"#{URI.encode_www_form(title)}\"; filename*=UTF-8''#{URI.encode_www_form(title)}"
end
webvtt
end
def annotations(env)
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
env.response.content_type = "text/xml"
id = env.params.url["id"]
source = env.params.query["source"]?
source ||= "archive"
if !id.match(/[a-zA-Z0-9_-]{11}/)
env.response.status_code = 400
return
end
annotations = ""
case source
when "archive"
if CONFIG.cache_annotations && (cached_annotation = PG_DB.query_one?("SELECT * FROM annotations WHERE id = $1", id, as: Annotation))
annotations = cached_annotation.annotations
else
index = CHARS_SAFE.index(id[0]).not_nil!.to_s.rjust(2, '0')
# IA doesn't handle leading hyphens,
# so we use https://archive.org/details/youtubeannotations_64
if index == "62"
index = "64"
id = id.sub(/^-/, 'A')
end
file = URI.encode_www_form("#{id[0, 3]}/#{id}.xml")
location = make_client(ARCHIVE_URL, &.get("/download/youtubeannotations_#{index}/#{id[0, 2]}.tar/#{file}"))
if !location.headers["Location"]?
env.response.status_code = location.status_code
end
response = make_client(URI.parse(location.headers["Location"]), &.get(location.headers["Location"]))
if response.body.empty?
env.response.status_code = 404
return
end
if response.status_code != 200
env.response.status_code = response.status_code
return
end
annotations = response.body
cache_annotation(PG_DB, id, annotations)
end
else # "youtube"
response = YT_POOL.client &.get("/annotations_invideo?video_id=#{id}")
if response.status_code != 200
env.response.status_code = response.status_code
return
end
annotations = response.body
end
etag = sha256(annotations)[0, 16]
if env.request.headers["If-None-Match"]?.try &.== etag
env.response.status_code = 304
else
env.response.headers["ETag"] = etag
annotations
end
end
def search_suggestions(env)
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
region = env.params.query["region"]?
env.response.content_type = "application/json"
query = env.params.query["q"]?
query ||= ""
begin
headers = HTTP::Headers{":authority" => "suggestqueries.google.com"}
response = YT_POOL.client &.get("/complete/search?hl=en&gl=#{region}&client=youtube&ds=yt&q=#{URI.encode_www_form(query)}&callback=suggestCallback", headers).body
body = response[35..-2]
body = JSON.parse(body).as_a
suggestions = body[1].as_a[0..-2]
JSON.build do |json|
json.object do
json.field "query", body[0].as_s
json.field "suggestions" do
json.array do
suggestions.each do |suggestion|
json.string suggestion[0].as_s
end
end
end
end
end
rescue ex
return error_json(500, ex)
end
end
end