RedBridge API request sign

redbridge-api-request.rb

# port from https://portal.redbridge.se/faq/api/guide/
require 'openssl'
require 'digest/hmac'
require 'base64'
require 'cgi'

BASE_URL   = "https://api.rbcloud.net/client/api"

API_KEY    = "your api key"
SECRET_KEY = "your secret key"

# build the request API docs at http://docs.rbcloud.net/api/v1/TOC_User.html
request = {
  command: "listVirtualMachines",
  apikey: API_KEY,
  response: "json"
}


def sign(str)
  digest   = OpenSSL::Digest.new('sha1')
  hmac     = OpenSSL::HMAC.digest(digest, SECRET_KEY, str)
  Base64.encode64(hmac).strip
end

req_str = request.keys.sort.map { |key| "#{key}=#{CGI.escape request[key]}" }.join "&"
signatur = sign req_str.gsub(/\+/, "%20").downcase

# output full url
puts "#{BASE_URL}?#{req_str}&signature=#{CGI.escape signatur}"