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Ruby script to get a timestamp from a tweet-id.
#! /usr/local/bin/ruby
# coding: utf-8
#=ツイートID解析
# : コマンドライン引数にツイートIDを渡して実行するとツイート日時等を算出する。
#
# date name version
# 2017.01.07 Masaru Koizumi 1.00 新規作成
#
# Copyright(C) 2017 mk-mode.com All Rights Reserved.
#---------------------------------------------------------------------------------
# 引数 : ツイートID(半角数字)
#---------------------------------------------------------------------------------
#++
class AnalyzeTweetid
TW_EPOCH = 1288834974657 # 単位:ミリ秒
MASK_T = "111111111111111111111111111111111111111110000000000000000000000"
MASK_M = "000000000000000000000000000000000000000001111111111000000000000"
MASK_S = "000000000000000000000000000000000000000000000000000111111111111"
def initialize(tweet_id)
@tweet_id = tweet_id.to_i
end
def exec
begin
# 各値のバイナリ文字列
timestamp_b = (@tweet_id & MASK_T.to_i(2)).to_s(2)
machine_id_b = (@tweet_id & MASK_M.to_i(2)).to_s(2)
sequence_b = (@tweet_id & MASK_S.to_i(2)).to_s(2)
# 各値の抽出&数値化
timestamp = ("%063d" % timestamp_b.to_i )[ 0,41].to_i(2)
machine_id = ("%063d" % machine_id_b.to_i)[41,10].to_i(2)
sequence = ("%063d" % sequence_b.to_i )[51,12].to_i(2)
# timestamp の算出
timestamp = Time.at((timestamp + TW_EPOCH) / 1000.0)
# 結果出力
puts " TWEET-ID: #{@tweet_id}"
puts "TIMESTAMP: #{timestamp.strftime("%Y-%m-%d %H:%M:%S.%L %Z")}"
puts " (MACHINE-ID: #{machine_id}, SEQUENCE: #{sequence})"
# timestamp のみなら、マスク処理をしなくとも、以下で充分
# timestamp = Time.at(((@tweet_id >> 22) + TW_EPOCH) / 1000.0)
# puts " TWEET-ID: #{@tweet_id}"
# puts "TIMESTAMP: #{timestamp.strftime("%Y-%m-%d %H:%M:%S.%L %Z")}"
rescue => e
$stderr.puts "[ERROR][#{self.class.name}.#{__method__}] #{e}"
e.backtrace.each { |tr| $stderr.puts "\t#{tr}"}
exit 1
end
end
end
if __FILE__ == $0
exit 0 unless tweet_id = ARGV.shift
AnalyzeTweetid.new(tweet_id).exec
end
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