statuses/update.json

update.rb

require "net/https"
require "securerandom"
require "openssl"
require "base64"
require "uri"
require "erb"

include ERB::Util

http_method = "POST"
url = URI("https://api.twitter.com/1.1/statuses/update.json")
body = "status=#{url_encode(ARGV[0])}"

consumer_key = ""
consumer_secret = ""
access_token = ""
access_token_secret = ""

oauth_nonce = SecureRandom.hex
oauth_timestamp = Time.now.to_i
oauth_version = "1.0"
oauth_signature_method = "HMAC-SHA1"

oauth_signature_base =
  "#{http_method}&" \
  "#{url_encode(url)}&" \
  "#{url_encode(
    "oauth_consumer_key=#{consumer_key}&" \
    "oauth_nonce=#{oauth_nonce}&" \
    "oauth_signature_method=#{oauth_signature_method}&" \
    "oauth_timestamp=#{oauth_timestamp}&" \
    "oauth_token=#{access_token}&" \
    "oauth_version=#{oauth_version}&" \
    "#{body}"
  )}"
puts "OAuth Signature Base: #{oauth_signature_base}"

sign_key = "#{consumer_secret}&#{access_token_secret}"
oauth_signature = Base64.encode64(OpenSSL::HMAC.digest("sha1", sign_key, oauth_signature_base))
puts "OAuth Signature: #{oauth_signature}"

header = {
  "Authorization" =>
    "OAuth " \
    "oauth_consumer_key=\"#{consumer_key}\", " \
    "oauth_nonce=\"#{oauth_nonce}\", " \
    "oauth_signature=\"#{url_encode(oauth_signature)}\", " \
    "oauth_signature_method=\"#{oauth_signature_method}\", " \
    "oauth_timestamp=\"#{oauth_timestamp}\", " \
    "oauth_token=\"#{access_token}\", " \
    "oauth_version=\"#{oauth_version}\""
}
puts "OAuth Header: #{header["Authorization"]}"

req = Net::HTTP.new(url.host, url.port)
req.use_ssl = true
puts req.post(url.path, body, header).body