lib/google_safe_browsing/key_helper.rb
module GoogleSafeBrowsing
class KeyHelper
def self.web_safe_base64_decode(str)
str.tr!('-_', '+/')
str << '=' while str.length % 4 != 0
Base64.decode64(str)
end
def self.web_safe_base64_encode(str)
str = Base64.encode64(str).chomp
str.tr('+/', '-_')
end
def self.compute_mac_code(data)
sha1 = OpenSSL::HMAC.digest('sha1',
GoogleSafeBrowsing.config.client_key,
data)
web_safe_base64_encode sha1
end
end
end