Aliyun MTS API Signature Computation Ruby Version

test.rb

def get_signature(params = {}, accessKeySecrt = '')
  canonicalizedQueryString = ''
  params.keys.sort.each do |key|
    return if (params[key].nil?)

    canonicalizedQueryString +=
      '&' + URI.encode_www_form_component(key) + '=' +
        URI.encode_www_form_component(params[key])
  end
  canonicalizedQueryString = canonicalizedQueryString[1..-1]
  string_to_sign =
    'GET' + '&' + URI.encode_www_form_component('/') + '&' +
      URI.encode_www_form_component(canonicalizedQueryString)

  return hmac_sha1(string_to_sign, accessKeySecrt)
end

def hmac_sha1(signature, key)
  require 'base64'
  require 'cgi'
  require 'openssl'

  raw = Base64.encode64(OpenSSL::HMAC.digest('sha1', key, signature).to_s)
  CGI.escape(raw.strip)
end

# Testing Params From Official Document
# https://www.alibabacloud.com/help/zh/doc-detail/29217.htm?spm=a2c63.l28256.b99.76.738e76f5DfVxP8
test_params = {
  "AccessKeyId": 'testId',
  "Action": 'SearchTemplate',
  "Version": '2014-06-18',
  "PageSize": '2',
  "Timestamp": '2015-05-14T09:03:45Z',
  "SignatureMethod": 'HMAC-SHA1',
  "SignatureVersion": '1.0',
  "SignatureNonce": '4902260a-516a-4b6a-a455-45b653cf6150',
  "Format": 'XML'
}
accessKeySecret = 'testKeySecret&'
puts get_signature(test_params, accessKeySecret)