require 'openssl' require 'base64' require 'addressable/uri' module OAuth2Client module UrlHelper # convenience method to build response URI def build_url(uri, opts={}) path = opts[:path] || '' query = opts[:params] || {} fragment = opts[:fragment] || {} url = Addressable::URI.parse uri url.path = path url.query_values = query unless query.empty? url.fragment = Addressable::URI.form_encode(fragment) unless fragment.empty? url.to_s end # generates a random key of up to +size+ bytes. The value returned is Base64 encoded with non-word # characters removed. def generate_urlsafe_key(size=48) seed = Time.now.to_i size = size - seed.to_s.length Base64.encode64("#{ OpenSSL::Random.random_bytes(size) }#{ seed }").gsub(/\W/, '') end alias_method :generate_nonce, :generate_urlsafe_key def generate_timestamp #:nodoc: Time.now.to_i.to_s end def http_basic_encode(username, password) encoded_data = ["#{username}:#{password}"].pack("m0") "Basic #{encoded_data}" end module_function :http_basic_encode # converts a hash to a URI query string # @params [Hash] params URI parameters def to_query(params) unless params.is_a?(Hash) raise "Expected Hash but got #{params.class.name}" end Addressable::URI.form_encode(params) end end end