require "openssl"
require "base64"
 
class YHSDWebhook
 
  attr_accessor :token
 
  def initialize(token)
    @token= token
  end
 
  def verify_webhook(data, hmac_header)
    digest  = OpenSSL::Digest::Digest.new('sha256')
    calculated_hmac = Base64.encode64(OpenSSL::HMAC.digest(digest, @token, data)).strip
    calculated_hmac == hmac_header
  end
 
end
 
# 数据
data ="{\"created_at\":\"2014-08-28T17:28:13.301+08:00\",\"domain\":\"www.example.com\",\"enable_email_regist\":true,\"enable_mobile_regist\":true,\"enable_username_regist\":true,\"name\":\"TEST\",\"page_description\":\"\",\"page_title\":\"\",\"updated_at\":\"2015-07-27T13:58:14.607+08:00\",\"url\":\"http://w...content-available-to-author-only...e.com\",\"webhook_token\":\"906155047ff74a14a1ca6b1fa74d3390\"}"
 
# Webhook密钥
webhook_token = "906155047ff74a14a1ca6b1fa74d3390"
 
# X_YHSD_HMAC_SHA256 Head
hmac_header = "NS0Wcz2CDgzI4+L9/UYdwaXpPI4As7VD+wKCRgKqNUo="
 
verify_result = YHSDWebhook.new(webhook_token).verify_webhook(data, hmac_header)
 
puts "verify_result:" + verify_result.to_s

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