Module: Shared::HmacSignature

Included in:
PushyDaemon::Consumer
Defined in:
lib/shared/hmac_signature.rb

Instance Method Summary collapse

Instance Method Details

#headers_md5(headers, payload) ⇒ Object 



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# File 'lib/shared/hmac_signature.rb', line 7

def headers_md5 headers, payload
  headers['Content-MD5'] = Digest::MD5.hexdigest(payload.to_s)
end

#headers_sign(headers, config) ⇒ Object 



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# File 'lib/shared/hmac_signature.rb', line 11

def headers_sign headers, config
  # Extract and check
  return unless config.is_a? Hash
  hmac_method   = config[:method]
  hmac_user     = config[:user]
  hmac_secret   = config[:secret]
  log_debug "headers_sign config", config

  # Check params
  unless hmac_method && hmac_user && hmac_secret
    log_error "headers_sign: missing method/user/secret"
    return
  end

  # Check headers, and translate names to strings
  unless config[:headers].is_a? Array
    log_error "headers_sign: [headers] should be an array of headers to be signed"
    return
  end
  hmac_headers = config[:headers].map(&:to_s)

  # Update date
  headers['Date'] = Time.now.utc.strftime('%a, %d %b %Y %H:%M:%S GMT')

  # Let's apply the requested method
  case hmac_method
  when 'hmac-kong'
    hmac_sign_kong headers, hmac_user, hmac_secret, hmac_headers
  else
    log_error "headers_sign: only [hmac-kong] method is supported"
    return
  end
end