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require 'cgi' require 'net/http' require 'xmlsimple' # gem install xml-simple require 'digest/md5' # Hyves API client class. # v0.1 (Joost Hietbrink, joost@yelloyello.com) MIT License # # Usage: # h = Hyves.new(key, secret) # h.authorize_token_url(:callback_url => 'http://localhost:3000/hyves/') # # Now go to the url, login and get an requesttoken # h.requesttoken = # requesttoken from the url # h.auth_accesstoken # Sets the access token in h.accesstoken # h.users_getLoggedin # friend_uids = h.friends_get['uid'] # Gets the friends for logged-in user # friends = h.users_get(:uid => friend_uids) # pids = friends['user'].collect{|friend| friend['pid']} # friend_avatars = h.photos_get(:pid => pids) # h.friends_getDistance(:uid => 1) # # When you have errors, use h.debug = true to get some info. class Hyves class HyvesException < StandardError;end attr_accessor :api_key, :shared_secret, :version, :host, :debug # Set the requesttoken you got via the authorize_token_url attr_accessor :requesttoken attr_accessor :accesstoken # Hash with all accesstoken attributes: {"expiredate"=>"2007-12-11 10:57:56", "accesstoken"=>"OTA3X_74MOE1NkfqY6-CFRAqjhI=", "uid"=>"1019902"} attr_reader :output # Replace this API key & secret with your own def initialize(api_key='your key here', shared_secret='and a secret here') @api_key = api_key @shared_secret = shared_secret @host = 'http://hyves-api.nl' @version = '2007.9.4' @output = 'xml' # 'json' @debug = false end # def request(method, *params) def request(url) response = XmlSimple.xml_in(http_get(url), { 'ForceArray' => false }) log "url: #{url}" log response.inspect raise HyvesException, "#{response['error_message']} (errorcode: #{response['error_code']})" if response['error_code'] response end # Does an HTTP GET on a given URL and returns the response body def http_get(url) Net::HTTP.get_response(URI.parse(url)).body.to_s end def api_call(options = {}) time = Time.now.to_i # FIXME: Should this be Time.now.utc? params_hash = {:format => output, :v => version, :api_key => api_key, :ts => time} params_hash[:accesstoken] = accesstoken['accesstoken'] unless accesstoken.blank? # Add accesstoken if we have one! params_hash.merge!(options) # Overwrite the defaults with special options params_hash.stringify_keys! # NOTE: sorting is needed to generate unique (same) sig as server # NOTE: oauth signature is based on "param1=a&param2=b", Hyves signature expects "param1=aparam2=b" md5_params = to_url_params(params_hash, :seperator => '', :sort => true, :encode => false) url_params = to_url_params(params_hash) signature = Digest::MD5.hexdigest(md5_params+shared_secret) url = "http://hyves-api.nl/?#{url_params}&sig=#{signature}" return request(url) end # For Desktop apps. Webapps should use the authorize_token_url to get this! # Returns the latest requesttoken OR gets a new one using the Desktop method. def auth_requesttoken requesttoken || @requesttoken = self.api_call(:method => 'auth.requesttoken')['requesttoken'] end # Returns the latest accesstoken OR retreivces new one using the most recent requesttoken. def auth_accesstoken accesstoken || @accesstoken = self.api_call(:method => 'auth.accesstoken', :requesttoken => self.auth_requesttoken) end # options: # callback_url = http://www.example.com/callback/ # seperator = '?' # infinite = 'false' def authorize_token_url(options = {}) raise ArgumentError, 'Please supply a callback_url!' if options[:callback_url].blank? url_params = to_url_params(options) url = "http://www.hyves.nl/authorizeToken/?api_key=#{api_key}" url += "&#{url_params}" unless url_params.blank? end private # This method defines all api calls def method_missing(meth, *args) hyves_method = meth.to_s.gsub('_', '.') options = {:method => hyves_method} options.merge!(args.first) if args.first.is_a?(Hash) api_call(options) end def to_url_params(hash, options={}) options.reverse_merge!({:seperator => '&', :sort => false, :encode => true}) # Default options keys = (options[:sort] ? hash.keys.sort : hash.keys) # Sort the hash (needed for md5) keys.collect do |key| value = hash[key] value = value.join(',') if value.is_a?(Array) param = "#{key}=#{value}" options[:escape] ? URI.escape(param) : param # return escaped / non-escaped param to collect array end.join(options[:seperator]) end def log(msg) puts msg if @debug end end

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