require "pool/connection" CHROME_VERSIONS = [ "68.0.3440.103", "68.0.3440.104", "68.0.3440.105", "68.0.3440.106", "68.0.3440.107", "68.0.3440.108", "68.0.3440.109", "68.0.3440.110", "68.0.3440.111", "68.0.3440.112", "68.0.3440.113", "68.0.3440.114", "68.0.3440.115", "68.0.3440.116", "68.0.3440.117", "68.0.3440.118", "68.0.3440.119", "68.0.3440.120", "68.0.3440.121", "68.0.3440.122", "68.0.3440.123", "68.0.3440.124", "68.0.3440.125", "68.0.3440.126", "68.0.3440.127", "68.0.3440.128", "68.0.3440.129", "68.0.3440.130", "68.0.3440.131", "68.0.3440.132", "68.0.3440.133", "68.0.3440.134", "69.0.3497.100", "69.0.3497.101", "69.0.3497.102", "69.0.3497.103", "69.0.3497.104", "69.0.3497.105", "69.0.3497.106", "69.0.3497.107", "69.0.3497.108", "69.0.3497.109", "69.0.3497.110", "69.0.3497.111", "69.0.3497.112", "69.0.3497.113", "69.0.3497.114", "69.0.3497.115", "69.0.3497.116", "69.0.3497.117", "69.0.3497.118", "69.0.3497.119", "69.0.3497.120", "69.0.3497.121", "69.0.3497.122", "69.0.3497.123", 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Int32 property! timeout : Float64 property pool : ConnectionPool(HTTPClient) def initialize(url : URI, @capacity = 5, @timeout = 5.0) @url = url @pool = build_pool end def client(region = nil, &block) conn = pool.checkout begin if region PROXY_LIST[region]?.try &.sample(40).each do |proxy| begin proxy = HTTPProxy.new(proxy_host: proxy[:ip], proxy_port: proxy[:port]) conn.set_proxy(proxy) break rescue ex end end end response = yield conn conn.unset_proxy response rescue ex conn = HTTPClient.new(url) conn.family = (url.host == "www.youtube.com") ? CONFIG.force_resolve : Socket::Family::UNSPEC conn.read_timeout = 5.seconds conn.connect_timeout = 5.seconds yield conn ensure pool.checkin(conn) end end private def build_pool ConnectionPool(HTTPClient).new(capacity: capacity, timeout: timeout) do client = HTTPClient.new(url) client.family = (url.host == "www.youtube.com") ? CONFIG.force_resolve : Socket::Family::UNSPEC client.read_timeout = 5.seconds client.connect_timeout = 5.seconds client end end end # See http://www.evanmiller.org/how-not-to-sort-by-average-rating.html def ci_lower_bound(pos, n) if n == 0 return 0.0 end # z value here represents a confidence level of 0.95 z = 1.96 phat = 1.0*pos/n return (phat + z*z/(2*n) - z * Math.sqrt((phat*(1 - phat) + z*z/(4*n))/n))/(1 + z*z/n) end def elapsed_text(elapsed) millis = elapsed.total_milliseconds return "#{millis.round(2)}ms" if millis >= 1 "#{(millis * 1000).round(2)}µs" end def make_client(url : URI, region = nil) client = HTTPClient.new(url) client.family = (url.host == "www.youtube.com") ? CONFIG.force_resolve : Socket::Family::UNSPEC client.read_timeout = 5.seconds client.connect_timeout = 5.seconds if region PROXY_LIST[region]?.try &.sample(40).each do |proxy| begin proxy = HTTPProxy.new(proxy_host: proxy[:ip], proxy_port: proxy[:port]) client.set_proxy(proxy) break rescue ex end end end return client end def decode_length_seconds(string) length_seconds = string.gsub(/[^0-9:]/, "").split(":").map &.to_i length_seconds = [0] * (3 - length_seconds.size) + length_seconds length_seconds = Time::Span.new(length_seconds[0], length_seconds[1], length_seconds[2]) length_seconds = length_seconds.total_seconds.to_i return length_seconds end def recode_length_seconds(time) if time <= 0 return "" else time = time.seconds text = "#{time.minutes.to_s.rjust(2, '0')}:#{time.seconds.to_s.rjust(2, '0')}" if time.total_hours.to_i > 0 text = "#{time.total_hours.to_i.to_s.rjust(2, '0')}:#{text}" end text = text.lchop('0') return text end end def decode_time(string) time = string.try &.to_f? if !time hours = /(?\d+)h/.match(string).try &.["hours"].try &.to_f hours ||= 0 minutes = /(?\d+)m(?!s)/.match(string).try &.["minutes"].try &.to_f minutes ||= 0 seconds = /(?\d+)s/.match(string).try &.["seconds"].try &.to_f seconds ||= 0 millis = /(?\d+)ms/.match(string).try &.["millis"].try &.to_f millis ||= 0 time = hours * 3600 + minutes * 60 + seconds + millis // 1000 end return time end def decode_date(string : String) # String matches 'YYYY' if string.match(/^\d{4}/) return Time.utc(string.to_i, 1, 1) end # Try to parse as format Jul 10, 2000 begin return Time.parse(string, "%b %-d, %Y", Time::Location.local) rescue ex end case string when "today" return Time.utc when "yesterday" return Time.utc - 1.day end # String matches format "20 hours ago", "4 months ago"... date = string.split(" ")[-3, 3] delta = date[0].to_i case date[1] when .includes? "second" delta = delta.seconds when .includes? "minute" delta = delta.minutes when .includes? "hour" delta = delta.hours when .includes? "day" delta = delta.days when .includes? "week" delta = delta.weeks when .includes? "month" delta = delta.months when .includes? "year" delta = delta.years else raise "Could not parse #{string}" end return Time.utc - delta end def recode_date(time : Time, locale) span = Time.utc - time if span.total_days > 365.0 span = translate(locale, "`x` years", (span.total_days.to_i // 365).to_s) elsif span.total_days > 30.0 span = translate(locale, "`x` months", (span.total_days.to_i // 30).to_s) elsif span.total_days > 7.0 span = translate(locale, "`x` weeks", (span.total_days.to_i // 7).to_s) elsif span.total_hours > 24.0 span = translate(locale, "`x` days", (span.total_days.to_i).to_s) elsif span.total_minutes > 60.0 span = translate(locale, "`x` hours", (span.total_hours.to_i).to_s) elsif span.total_seconds > 60.0 span = translate(locale, "`x` minutes", (span.total_minutes.to_i).to_s) else span = translate(locale, "`x` seconds", (span.total_seconds.to_i).to_s) end return span end def number_with_separator(number) number.to_s.reverse.gsub(/(\d{3})(?=\d)/, "\\1,").reverse end def short_text_to_number(short_text : String) : Int32 case short_text when .ends_with? "M" number = short_text.rstrip(" mM").to_f number *= 1000000 when .ends_with? "K" number = short_text.rstrip(" kK").to_f number *= 1000 else number = short_text.rstrip(" ") end number = number.to_i return number end def number_to_short_text(number) seperated = number_with_separator(number).gsub(",", ".").split("") text = seperated.first(2).join if seperated[2]? && seperated[2] != "." text += seperated[2] end text = text.rchop(".0") if number // 1_000_000_000 != 0 text += "B" elsif number // 1_000_000 != 0 text += "M" elsif number // 1000 != 0 text += "K" end text end def arg_array(array, start = 1) if array.size == 0 args = "NULL" else args = [] of String (start..array.size + start - 1).each { |i| args << "($#{i})" } args = args.join(",") end return args end def make_host_url(config, kemal_config) ssl = config.https_only || kemal_config.ssl port = config.external_port || kemal_config.port if ssl scheme = "https://" else scheme = "http://" end # Add if non-standard port if port != 80 && port != 443 port = ":#{kemal_config.port}" else port = "" end if !config.domain return "" end host = config.domain.not_nil!.lchop(".") return "#{scheme}#{host}#{port}" end def get_referer(env, fallback = "/", unroll = true) referer = env.params.query["referer"]? referer ||= env.request.headers["referer"]? referer ||= fallback referer = URI.parse(referer) # "Unroll" nested referrers if unroll loop do if referer.query params = HTTP::Params.parse(referer.query.not_nil!) if params["referer"]? referer = URI.parse(URI.decode_www_form(params["referer"])) else break end else break end end end referer = referer.full_path referer = "/" + referer.lstrip("\/\\") if referer == env.request.path referer = fallback end return referer end struct VarInt def self.from_io(io : IO, format = IO::ByteFormat::NetworkEndian) : Int32 result = 0_u32 num_read = 0 loop do byte = io.read_byte raise "Invalid VarInt" if !byte value = byte & 0x7f result |= value.to_u32 << (7 * num_read) num_read += 1 break if byte & 0x80 == 0 raise "Invalid VarInt" if num_read > 5 end result.to_i32 end def self.to_io(io : IO, value : Int32) io.write_byte 0x00 if value == 0x00 value = value.to_u32 while value != 0 byte = (value & 0x7f).to_u8 value >>= 7 if value != 0 byte |= 0x80 end io.write_byte byte end end end def sha256(text) digest = OpenSSL::Digest.new("SHA256") digest << text return digest.hexdigest end def subscribe_pubsub(topic, key, config) case topic when .match(/^UC[A-Za-z0-9_-]{22}$/) topic = "channel_id=#{topic}" when .match(/^(PL|LL|EC|UU|FL|UL|OLAK5uy_)[0-9A-Za-z-_]{10,}$/) # There's a couple missing from the above regex, namely TL and RD, which # don't have feeds topic = "playlist_id=#{topic}" else # TODO end client = make_client(PUBSUB_URL) time = Time.utc.to_unix.to_s nonce = Random::Secure.hex(4) signature = "#{time}:#{nonce}" host_url = make_host_url(config, Kemal.config) body = { "hub.callback" => "#{host_url}/feed/webhook/v1:#{time}:#{nonce}:#{OpenSSL::HMAC.hexdigest(:sha1, key, signature)}", "hub.topic" => "https://www.youtube.com/xml/feeds/videos.xml?#{topic}", "hub.verify" => "async", "hub.mode" => "subscribe", "hub.lease_seconds" => "432000", "hub.secret" => key.to_s, } return client.post("/subscribe", form: body) end def parse_range(range) if !range return 0_i64, nil end ranges = range.lchop("bytes=").split(',') ranges.each do |range| start_range, end_range = range.split('-') start_range = start_range.to_i64? || 0_i64 end_range = end_range.to_i64? return start_range, end_range end return 0_i64, nil end def convert_theme(theme) case theme when "true" "dark" when "false" "light" when "", nil nil else theme end end