invidious/src/invidious/helpers/helpers.cr

703 行
24 KiB
Crystal

require "./macros"
struct Nonce
include DB::Serializable
property nonce : String
property expire : Time
end
struct SessionId
include DB::Serializable
property id : String
property email : String
property issued : String
end
struct Annotation
include DB::Serializable
property id : String
property annotations : String
end
struct ConfigPreferences
include YAML::Serializable
property annotations : Bool = false
property annotations_subscribed : Bool = false
property autoplay : Bool = false
property captions : Array(String) = ["", "", ""]
property comments : Array(String) = ["youtube", ""]
property continue : Bool = false
property continue_autoplay : Bool = true
property dark_mode : String = ""
property latest_only : Bool = false
property listen : Bool = false
property local : Bool = false
property locale : String = "en-US"
property max_results : Int32 = 40
property notifications_only : Bool = false
property player_style : String = "invidious"
property quality : String = "hd720"
property quality_dash : String = "auto"
property default_home : String = "Popular"
property feed_menu : Array(String) = ["Popular", "Trending", "Subscriptions", "Playlists"]
property related_videos : Bool = true
property sort : String = "published"
property speed : Float32 = 1.0_f32
property thin_mode : Bool = false
property unseen_only : Bool = false
property video_loop : Bool = false
property volume : Int32 = 100
def to_tuple
{% begin %}
{
{{*@type.instance_vars.map { |var| "#{var.name}: #{var.name}".id }}}
}
{% end %}
end
end
class Config
include YAML::Serializable
property channel_threads : Int32 = 1 # Number of threads to use for crawling videos from channels (for updating subscriptions)
property feed_threads : Int32 = 1 # Number of threads to use for updating feeds
property output : String = "STDOUT" # Log file path or STDOUT
property log_level : LogLevel = LogLevel::Info # Default log level, valid YAML values are ints and strings, see src/invidious/helpers/logger.cr
property db : DBConfig # Database configuration
property decrypt_polling : Bool = true # Use polling to keep decryption function up to date
property full_refresh : Bool = false # Used for crawling channels: threads should check all videos uploaded by a channel
property https_only : Bool? # Used to tell Invidious it is behind a proxy, so links to resources should be https://
property hmac_key : String? # HMAC signing key for CSRF tokens and verifying pubsub subscriptions
property domain : String? # Domain to be used for links to resources on the site where an absolute URL is required
property use_pubsub_feeds : Bool | Int32 = false # Subscribe to channels using PubSubHubbub (requires domain, hmac_key)
property popular_enabled : Bool = true
property captcha_enabled : Bool = true
property login_enabled : Bool = true
property registration_enabled : Bool = true
property statistics_enabled : Bool = false
property admins : Array(String) = [] of String
property external_port : Int32? = nil
property default_user_preferences : ConfigPreferences = ConfigPreferences.from_yaml("")
property dmca_content : Array(String) = [] of String # For compliance with DMCA, disables download widget using list of video IDs
property check_tables : Bool = false # Check table integrity, automatically try to add any missing columns, create tables, etc.
property cache_annotations : Bool = false # Cache annotations requested from IA, will not cache empty annotations or annotations that only contain cards
property banner : String? = nil # Optional banner to be displayed along top of page for announcements, etc.
property hsts : Bool? = true # Enables 'Strict-Transport-Security'. Ensure that `domain` and all subdomains are served securely
property disable_proxy : Bool? | Array(String)? = false # Disable proxying server-wide: options: 'dash', 'livestreams', 'downloads', 'local'
@[YAML::Field(converter: Preferences::FamilyConverter)]
property force_resolve : Socket::Family = Socket::Family::UNSPEC # Connect to YouTube over 'ipv6', 'ipv4'. Will sometimes resolve fix issues with rate-limiting (see https://github.com/ytdl-org/youtube-dl/issues/21729)
property port : Int32 = 3000 # Port to listen for connections (overrided by command line argument)
property host_binding : String = "0.0.0.0" # Host to bind (overrided by command line argument)
property pool_size : Int32 = 100 # Pool size for HTTP requests to youtube.com and ytimg.com (each domain has a separate pool of `pool_size`)
@[YAML::Field(converter: Preferences::StringToCookies)]
property cookies : HTTP::Cookies = HTTP::Cookies.new # Saved cookies in "name1=value1; name2=value2..." format
property captcha_key : String? = nil # Key for Anti-Captcha
property captcha_api_url : String = "https://api.anti-captcha.com" # API URL for Anti-Captcha
def disabled?(option)
case disabled = CONFIG.disable_proxy
when Bool
return disabled
when Array
if disabled.includes? option
return true
else
return false
end
else
return false
end
end
end
struct DBConfig
include YAML::Serializable
property user : String
property password : String
property host : String
property port : Int32
property dbname : String
end
def login_req(f_req)
data = {
# Unfortunately there's not much information available on `bgRequest`; part of Google's BotGuard
# Generally this is much longer (>1250 characters), see also
# https://github.com/ytdl-org/youtube-dl/commit/baf67a604d912722b0fe03a40e9dc5349a2208cb .
# For now this can be empty.
"bgRequest" => %|["identifier",""]|,
"pstMsg" => "1",
"checkConnection" => "youtube",
"checkedDomains" => "youtube",
"hl" => "en",
"deviceinfo" => %|[null,null,null,[],null,"US",null,null,[],"GlifWebSignIn",null,[null,null,[]]]|,
"f.req" => f_req,
"flowName" => "GlifWebSignIn",
"flowEntry" => "ServiceLogin",
# "cookiesDisabled" => "false",
# "gmscoreversion" => "undefined",
# "continue" => "https://accounts.google.com/ManageAccount",
# "azt" => "",
# "bgHash" => "",
}
return HTTP::Params.encode(data)
end
def html_to_content(description_html : String)
description = description_html.gsub(/(<br>)|(<br\/>)/, {
"<br>": "\n",
"<br/>": "\n",
})
if !description.empty?
description = XML.parse_html(description).content.strip("\n ")
end
return description
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
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"].as_a[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
paid = 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"
paid = true
# TODO: Potentially available as i["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,
paid: paid,
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 { |u| "https:#{u["url"]}" } || ""
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"].as_a[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
end
def extract_items(initial_data : Hash(String, JSON::Any), author_fallback : String? = nil, author_id_fallback : String? = nil)
items = [] of SearchItem
channel_v2_response = initial_data
.try &.["response"]?
.try &.["continuationContents"]?
.try &.["gridContinuation"]?
.try &.["items"]?
if channel_v2_response
channel_v2_response.try &.as_a.each { |item|
extract_item(item, author_fallback, author_id_fallback)
.try { |t| items << t }
}
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 }
} }
end
items
end
def check_enum(db, enum_name, struct_type = nil)
return # TODO
if !db.query_one?("SELECT true FROM pg_type WHERE typname = $1", enum_name, as: Bool)
LOGGER.info("check_enum: CREATE TYPE #{enum_name}")
db.using_connection do |conn|
conn.as(PG::Connection).exec_all(File.read("config/sql/#{enum_name}.sql"))
end
end
end
def check_table(db, table_name, struct_type = nil)
# Create table if it doesn't exist
begin
db.exec("SELECT * FROM #{table_name} LIMIT 0")
rescue ex
LOGGER.info("check_table: check_table: CREATE TABLE #{table_name}")
db.using_connection do |conn|
conn.as(PG::Connection).exec_all(File.read("config/sql/#{table_name}.sql"))
end
end
return if !struct_type
struct_array = struct_type.type_array
column_array = get_column_array(db, table_name)
column_types = File.read("config/sql/#{table_name}.sql").match(/CREATE TABLE public\.#{table_name}\n\((?<types>[\d\D]*?)\);/)
.try &.["types"].split(",").map { |line| line.strip }.reject &.starts_with?("CONSTRAINT")
return if !column_types
struct_array.each_with_index do |name, i|
if name != column_array[i]?
if !column_array[i]?
new_column = column_types.select { |line| line.starts_with? name }[0]
LOGGER.info("check_table: ALTER TABLE #{table_name} ADD COLUMN #{new_column}")
db.exec("ALTER TABLE #{table_name} ADD COLUMN #{new_column}")
next
end
# Column doesn't exist
if !column_array.includes? name
new_column = column_types.select { |line| line.starts_with? name }[0]
db.exec("ALTER TABLE #{table_name} ADD COLUMN #{new_column}")
end
# Column exists but in the wrong position, rotate
if struct_array.includes? column_array[i]
until name == column_array[i]
new_column = column_types.select { |line| line.starts_with? column_array[i] }[0]?.try &.gsub("#{column_array[i]}", "#{column_array[i]}_new")
# There's a column we didn't expect
if !new_column
LOGGER.info("check_table: ALTER TABLE #{table_name} DROP COLUMN #{column_array[i]}")
db.exec("ALTER TABLE #{table_name} DROP COLUMN #{column_array[i]} CASCADE")
column_array = get_column_array(db, table_name)
next
end
LOGGER.info("check_table: ALTER TABLE #{table_name} ADD COLUMN #{new_column}")
db.exec("ALTER TABLE #{table_name} ADD COLUMN #{new_column}")
LOGGER.info("check_table: UPDATE #{table_name} SET #{column_array[i]}_new=#{column_array[i]}")
db.exec("UPDATE #{table_name} SET #{column_array[i]}_new=#{column_array[i]}")
LOGGER.info("check_table: ALTER TABLE #{table_name} DROP COLUMN #{column_array[i]} CASCADE")
db.exec("ALTER TABLE #{table_name} DROP COLUMN #{column_array[i]} CASCADE")
LOGGER.info("check_table: ALTER TABLE #{table_name} RENAME COLUMN #{column_array[i]}_new TO #{column_array[i]}")
db.exec("ALTER TABLE #{table_name} RENAME COLUMN #{column_array[i]}_new TO #{column_array[i]}")
column_array = get_column_array(db, table_name)
end
else
LOGGER.info("check_table: ALTER TABLE #{table_name} DROP COLUMN #{column_array[i]} CASCADE")
db.exec("ALTER TABLE #{table_name} DROP COLUMN #{column_array[i]} CASCADE")
end
end
end
return if column_array.size <= struct_array.size
column_array.each do |column|
if !struct_array.includes? column
LOGGER.info("check_table: ALTER TABLE #{table_name} DROP COLUMN #{column} CASCADE")
db.exec("ALTER TABLE #{table_name} DROP COLUMN #{column} CASCADE")
end
end
end
class PG::ResultSet
def field(index = @column_index)
@fields.not_nil![index]
end
end
def get_column_array(db, table_name)
column_array = [] of String
db.query("SELECT * FROM #{table_name} LIMIT 0") do |rs|
rs.column_count.times do |i|
column = rs.as(PG::ResultSet).field(i)
column_array << column.name
end
end
return column_array
end
def cache_annotation(db, id, annotations)
if !CONFIG.cache_annotations
return
end
body = XML.parse(annotations)
nodeset = body.xpath_nodes(%q(/document/annotations/annotation))
return if nodeset == 0
has_legacy_annotations = false
nodeset.each do |node|
if !{"branding", "card", "drawer"}.includes? node["type"]?
has_legacy_annotations = true
break
end
end
db.exec("INSERT INTO annotations VALUES ($1, $2) ON CONFLICT DO NOTHING", id, annotations) if has_legacy_annotations
end
def create_notification_stream(env, topics, connection_channel)
connection = Channel(PQ::Notification).new(8)
connection_channel.send({true, connection})
locale = LOCALES[env.get("preferences").as(Preferences).locale]?
since = env.params.query["since"]?.try &.to_i?
id = 0
if topics.includes? "debug"
spawn do
begin
loop do
time_span = [0, 0, 0, 0]
time_span[rand(4)] = rand(30) + 5
published = Time.utc - Time::Span.new(days: time_span[0], hours: time_span[1], minutes: time_span[2], seconds: time_span[3])
video_id = TEST_IDS[rand(TEST_IDS.size)]
video = get_video(video_id, PG_DB)
video.published = published
response = JSON.parse(video.to_json(locale))
if fields_text = env.params.query["fields"]?
begin
JSONFilter.filter(response, fields_text)
rescue ex
env.response.status_code = 400
response = {"error" => ex.message}
end
end
env.response.puts "id: #{id}"
env.response.puts "data: #{response.to_json}"
env.response.puts
env.response.flush
id += 1
sleep 1.minute
Fiber.yield
end
rescue ex
end
end
end
spawn do
begin
if since
topics.try &.each do |topic|
case topic
when .match(/UC[A-Za-z0-9_-]{22}/)
PG_DB.query_all("SELECT * FROM channel_videos WHERE ucid = $1 AND published > $2 ORDER BY published DESC LIMIT 15",
topic, Time.unix(since.not_nil!), as: ChannelVideo).each do |video|
response = JSON.parse(video.to_json(locale))
if fields_text = env.params.query["fields"]?
begin
JSONFilter.filter(response, fields_text)
rescue ex
env.response.status_code = 400
response = {"error" => ex.message}
end
end
env.response.puts "id: #{id}"
env.response.puts "data: #{response.to_json}"
env.response.puts
env.response.flush
id += 1
end
else
# TODO
end
end
end
end
end
spawn do
begin
loop do
event = connection.receive
notification = JSON.parse(event.payload)
topic = notification["topic"].as_s
video_id = notification["videoId"].as_s
published = notification["published"].as_i64
if !topics.try &.includes? topic
next
end
video = get_video(video_id, PG_DB)
video.published = Time.unix(published)
response = JSON.parse(video.to_json(locale))
if fields_text = env.params.query["fields"]?
begin
JSONFilter.filter(response, fields_text)
rescue ex
env.response.status_code = 400
response = {"error" => ex.message}
end
end
env.response.puts "id: #{id}"
env.response.puts "data: #{response.to_json}"
env.response.puts
env.response.flush
id += 1
end
rescue ex
ensure
connection_channel.send({false, connection})
end
end
begin
# Send heartbeat
loop do
env.response.puts ":keepalive #{Time.utc.to_unix}"
env.response.puts
env.response.flush
sleep (20 + rand(11)).seconds
end
rescue ex
ensure
connection_channel.send({false, connection})
end
end
def extract_initial_data(body) : Hash(String, JSON::Any)
return JSON.parse(body.match(/(window\["ytInitialData"\]|var\s*ytInitialData)\s*=\s*(?<info>\{.*?\});/mx).try &.["info"] || "{}").as_h
end
def proxy_file(response, env)
if response.headers.includes_word?("Content-Encoding", "gzip")
Compress::Gzip::Writer.open(env.response) do |deflate|
IO.copy response.body_io, deflate
end
elsif response.headers.includes_word?("Content-Encoding", "deflate")
Compress::Deflate::Writer.open(env.response) do |deflate|
IO.copy response.body_io, deflate
end
else
IO.copy response.body_io, env.response
end
end
# See https://github.com/kemalcr/kemal/pull/576
class HTTP::Server::Response::Output
def close
return if closed?
unless response.wrote_headers?
response.content_length = @out_count
end
ensure_headers_written
super
if @chunked
@io << "0\r\n\r\n"
@io.flush
end
end
end
class HTTP::Client::Response
def pipe(io)
HTTP.serialize_body(io, headers, @body, @body_io, @version)
end
end
# Supports serialize_body without first writing headers
module HTTP
def self.serialize_body(io, headers, body, body_io, version)
if body
io << body
elsif body_io
content_length = content_length(headers)
if content_length
copied = IO.copy(body_io, io)
if copied != content_length
raise ArgumentError.new("Content-Length header is #{content_length} but body had #{copied} bytes")
end
elsif Client::Response.supports_chunked?(version)
headers["Transfer-Encoding"] = "chunked"
serialize_chunked_body(io, body_io)
else
io << body
end
end
end
end
class HTTP::Client
property family : Socket::Family = Socket::Family::UNSPEC
private def socket
socket = @socket
return socket if socket
hostname = @host.starts_with?('[') && @host.ends_with?(']') ? @host[1..-2] : @host
socket = TCPSocket.new hostname, @port, @dns_timeout, @connect_timeout, @family
socket.read_timeout = @read_timeout if @read_timeout
socket.sync = false
{% if !flag?(:without_openssl) %}
if tls = @tls
socket = OpenSSL::SSL::Socket::Client.new(socket, context: tls, sync_close: true, hostname: @host)
end
{% end %}
@socket = socket
end
end
class TCPSocket
def initialize(host, port, dns_timeout = nil, connect_timeout = nil, family = Socket::Family::UNSPEC)
Addrinfo.tcp(host, port, timeout: dns_timeout, family: family) do |addrinfo|
super(addrinfo.family, addrinfo.type, addrinfo.protocol)
connect(addrinfo, timeout: connect_timeout) do |error|
close
error
end
end
end
end