michael@0: function parseQueryString(str)
michael@0: {
michael@0:   if (str == "")
michael@0:     return {};
michael@0: 
michael@0:   var paramArray = str.split("&");
michael@0:   var regex = /^([^=]+)=(.*)$/;
michael@0:   var params = {};
michael@0:   for (var i = 0, sz = paramArray.length; i < sz; i++)
michael@0:   {
michael@0:     var match = regex.exec(paramArray[i]);
michael@0:     if (!match)
michael@0:       throw "Bad parameter in queryString!  '" + paramArray[i] + "'";
michael@0:     params[decodeURIComponent(match[1])] = decodeURIComponent(match[2]);
michael@0:   }
michael@0: 
michael@0:   return params;
michael@0: }
michael@0: 
michael@0: function getPosition(expectedAccessToken, providedAccessToken, desiredAccessToken)
michael@0: {  
michael@0:   var response = {
michael@0:     status: "OK",
michael@0:     location: {
michael@0:       lat: providedAccessToken ?
michael@0:              (expectedAccessToken == providedAccessToken ? 200 : 404) : 200,
michael@0:       lng: -122.08769,
michael@0:     },
michael@0:     accuracy: 100,
michael@0:     access_token: desiredAccessToken
michael@0:   };
michael@0:   
michael@0:   return JSON.stringify(response);
michael@0: }
michael@0: 
michael@0: function handleRequest(request, response)
michael@0: {
michael@0:   var params = parseQueryString(request.queryString);
michael@0: 
michael@0:   response.setStatusLine("1.0", 200, "OK");
michael@0:   response.setHeader("Cache-Control", "no-cache", false);
michael@0:   response.setHeader("Content-Type", "aplication/x-javascript", false);
michael@0:   response.write(getPosition(params.expected_access_token, params.access_token,
michael@0:                              params.desired_access_token));
michael@0: }