15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/browser/geolocation/network_location_request.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <set> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <string> 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/json/json_reader.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/json/json_writer.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/metrics/histogram.h" 134e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)#include "base/metrics/sparse_histogram.h" 14868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "base/strings/string_number_conversions.h" 15868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "base/strings/utf_string_conversions.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/values.h" 172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "content/browser/geolocation/location_arbitrator_impl.h" 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/common/geoposition.h" 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "google_apis/google_api_keys.h" 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/escape.h" 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/load_flags.h" 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/url_request/url_fetcher.h" 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/url_request/url_request_context_getter.h" 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/url_request/url_request_status.h" 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace content { 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const char kAccessTokenString[] = "accessToken"; 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const char kLocationString[] = "location"; 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const char kLatitudeString[] = "lat"; 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const char kLongitudeString[] = "lng"; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const char kAccuracyString[] = "accuracy"; 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 354e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)enum NetworkLocationRequestEvent { 364e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) // NOTE: Do not renumber these as that would confuse interpretation of 374e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) // previously logged data. When making changes, also update the enum list 384e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) // in tools/metrics/histograms/histograms.xml to keep it in sync. 394e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) NETWORK_LOCATION_REQUEST_EVENT_REQUEST_START = 0, 404e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) NETWORK_LOCATION_REQUEST_EVENT_REQUEST_CANCEL = 1, 414e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) NETWORK_LOCATION_REQUEST_EVENT_RESPONSE_SUCCESS = 2, 424e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) NETWORK_LOCATION_REQUEST_EVENT_RESPONSE_NOT_OK = 3, 434e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) NETWORK_LOCATION_REQUEST_EVENT_RESPONSE_EMPTY = 4, 444e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) NETWORK_LOCATION_REQUEST_EVENT_RESPONSE_MALFORMED = 5, 454e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) NETWORK_LOCATION_REQUEST_EVENT_RESPONSE_INVALID_FIX = 6, 464e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) 474e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) // NOTE: Add entries only immediately above this line. 484e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) NETWORK_LOCATION_REQUEST_EVENT_COUNT = 7 494e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)}; 504e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) 514e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)void RecordUmaEvent(NetworkLocationRequestEvent event) { 524e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) UMA_HISTOGRAM_ENUMERATION("Geolocation.NetworkLocationRequest.Event", 534e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) event, NETWORK_LOCATION_REQUEST_EVENT_COUNT); 544e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)} 554e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) 564e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)void RecordUmaResponseCode(int code) { 574e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) UMA_HISTOGRAM_SPARSE_SLOWLY("Geolocation.NetworkLocationRequest.ResponseCode", 584e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) code); 594e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)} 604e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) 618bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)void RecordUmaAccessPoints(int count) { 628bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) const int min = 0; 631e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) const int max = 20; 641e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) const int buckets = 21; 658bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) UMA_HISTOGRAM_CUSTOM_COUNTS("Geolocation.NetworkLocationRequest.AccessPoints", 668bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) count, min, max, buckets); 678bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)} 688bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Local functions 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Creates the request url to send to the server. 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)GURL FormRequestURL(const GURL& url); 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void FormUploadData(const WifiData& wifi_data, 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::Time& timestamp, 75a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) const base::string16& access_token, 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string* upload_data); 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 784e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)// Attempts to extract a position from the response. Detects and indicates 794e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)// various failure cases. 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void GetLocationFromResponse(bool http_post_result, 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int status_code, 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const std::string& response_body, 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::Time& timestamp, 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const GURL& server_url, 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Geoposition* position, 86a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) base::string16* access_token); 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Parses the server response body. Returns true if parsing was successful. 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Sets |*position| to the parsed location if a valid fix was received, 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// otherwise leaves it unchanged. 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool ParseServerResponse(const std::string& response_body, 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::Time& timestamp, 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Geoposition* position, 94a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) base::string16* access_token); 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void AddWifiData(const WifiData& wifi_data, 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int age_milliseconds, 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::DictionaryValue* request); 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int NetworkLocationRequest::url_fetcher_id_for_tests = 0; 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)NetworkLocationRequest::NetworkLocationRequest( 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) net::URLRequestContextGetter* context, 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const GURL& url, 1053551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) LocationResponseCallback callback) 1066e8cce623b6e4fe0c9e4af605d675dd9d0338c38Torne (Richard Coles) : url_context_(context), location_response_callback_(callback), url_(url) { 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)NetworkLocationRequest::~NetworkLocationRequest() { 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 112a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)bool NetworkLocationRequest::MakeRequest(const base::string16& access_token, 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const WifiData& wifi_data, 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::Time& timestamp) { 1154e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) RecordUmaEvent(NETWORK_LOCATION_REQUEST_EVENT_REQUEST_START); 1168bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) RecordUmaAccessPoints(wifi_data.access_point_data.size()); 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (url_fetcher_ != NULL) { 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DVLOG(1) << "NetworkLocationRequest : Cancelling pending request"; 1194e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) RecordUmaEvent(NETWORK_LOCATION_REQUEST_EVENT_REQUEST_CANCEL); 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) url_fetcher_.reset(); 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) wifi_data_ = wifi_data; 1236e8cce623b6e4fe0c9e4af605d675dd9d0338c38Torne (Richard Coles) wifi_data_timestamp_ = timestamp; 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GURL request_url = FormRequestURL(url_); 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) url_fetcher_.reset(net::URLFetcher::Create( 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) url_fetcher_id_for_tests, request_url, net::URLFetcher::POST, this)); 128868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) url_fetcher_->SetRequestContext(url_context_.get()); 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string upload_data; 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FormUploadData(wifi_data, timestamp, access_token, &upload_data); 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) url_fetcher_->SetUploadData("application/json", upload_data); 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) url_fetcher_->SetLoadFlags( 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) net::LOAD_BYPASS_CACHE | net::LOAD_DISABLE_CACHE | 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) net::LOAD_DO_NOT_SAVE_COOKIES | net::LOAD_DO_NOT_SEND_COOKIES | 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) net::LOAD_DO_NOT_SEND_AUTH_DATA); 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1376e8cce623b6e4fe0c9e4af605d675dd9d0338c38Torne (Richard Coles) request_start_time_ = base::TimeTicks::Now(); 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) url_fetcher_->Start(); 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NetworkLocationRequest::OnURLFetchComplete( 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const net::URLFetcher* source) { 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_EQ(url_fetcher_.get(), source); 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) net::URLRequestStatus status = source->GetStatus(); 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int response_code = source->GetResponseCode(); 1484e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) RecordUmaResponseCode(response_code); 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Geoposition position; 151a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) base::string16 access_token; 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string data; 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) source->GetResponseAsString(&data); 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GetLocationFromResponse(status.is_success(), 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) response_code, 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) data, 1576e8cce623b6e4fe0c9e4af605d675dd9d0338c38Torne (Richard Coles) wifi_data_timestamp_, 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) source->GetURL(), 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &position, 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &access_token); 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const bool server_error = 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) !status.is_success() || (response_code >= 500 && response_code < 600); 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) url_fetcher_.reset(); 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!server_error) { 1666e8cce623b6e4fe0c9e4af605d675dd9d0338c38Torne (Richard Coles) const base::TimeDelta request_time = 1676e8cce623b6e4fe0c9e4af605d675dd9d0338c38Torne (Richard Coles) base::TimeTicks::Now() - request_start_time_; 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UMA_HISTOGRAM_CUSTOM_TIMES( 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "Net.Wifi.LbsLatency", 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) request_time, 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::TimeDelta::FromMilliseconds(1), 1735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::TimeDelta::FromSeconds(10), 1745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 100); 1755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1773551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) DVLOG(1) << "NetworkLocationRequest::OnURLFetchComplete() : run callback."; 1786e8cce623b6e4fe0c9e4af605d675dd9d0338c38Torne (Richard Coles) location_response_callback_.Run( 1796e8cce623b6e4fe0c9e4af605d675dd9d0338c38Torne (Richard Coles) position, server_error, access_token, wifi_data_); 1805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Local functions. 1835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 1845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct AccessPointLess { 1865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool operator()(const AccessPointData* ap1, 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const AccessPointData* ap2) const { 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return ap2->radio_signal_strength < ap1->radio_signal_strength; 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)GURL FormRequestURL(const GURL& url) { 19358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) if (url == LocationArbitratorImpl::DefaultNetworkProviderURL()) { 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string api_key = google_apis::GetAPIKey(); 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!api_key.empty()) { 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string query(url.query()); 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!query.empty()) 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) query += "&"; 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) query += "key=" + net::EscapeQueryParamValue(api_key, true); 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GURL::Replacements replacements; 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) replacements.SetQueryStr(query); 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return url.ReplaceComponents(replacements); 2035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return url; 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void FormUploadData(const WifiData& wifi_data, 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::Time& timestamp, 210a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) const base::string16& access_token, 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string* upload_data) { 2125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int age = kint32min; // Invalid so AddInteger() will ignore. 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!timestamp.is_null()) { 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Convert absolute timestamps into a relative age. 2155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int64 delta_ms = (base::Time::Now() - timestamp).InMilliseconds(); 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (delta_ms >= 0 && delta_ms < kint32max) 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) age = static_cast<int>(delta_ms); 2185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::DictionaryValue request; 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddWifiData(wifi_data, age, &request); 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!access_token.empty()) 2235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) request.SetString(kAccessTokenString, access_token); 2245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::JSONWriter::Write(&request, upload_data); 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void AddString(const std::string& property_name, const std::string& value, 2285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::DictionaryValue* dict) { 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(dict); 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!value.empty()) 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) dict->SetString(property_name, value); 2325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void AddInteger(const std::string& property_name, int value, 2355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::DictionaryValue* dict) { 2365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(dict); 2375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (value != kint32min) 2385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) dict->SetInteger(property_name, value); 2395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void AddWifiData(const WifiData& wifi_data, 2425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int age_milliseconds, 2435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::DictionaryValue* request) { 2445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(request); 2455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (wifi_data.access_point_data.empty()) 2475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 2485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) typedef std::multiset<const AccessPointData*, AccessPointLess> AccessPointSet; 2505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AccessPointSet access_points_by_signal_strength; 2515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (WifiData::AccessPointDataSet::const_iterator iter = 2535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) wifi_data.access_point_data.begin(); 2545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) iter != wifi_data.access_point_data.end(); 2555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ++iter) { 2565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) access_points_by_signal_strength.insert(&(*iter)); 2575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::ListValue* wifi_access_point_list = new base::ListValue(); 2605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (AccessPointSet::iterator iter = 2615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) access_points_by_signal_strength.begin(); 2625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) iter != access_points_by_signal_strength.end(); 2635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ++iter) { 2645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::DictionaryValue* wifi_dict = new base::DictionaryValue(); 2655d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) AddString("macAddress", base::UTF16ToUTF8((*iter)->mac_address), wifi_dict); 2665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddInteger("signalStrength", (*iter)->radio_signal_strength, wifi_dict); 2675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddInteger("age", age_milliseconds, wifi_dict); 2685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddInteger("channel", (*iter)->channel, wifi_dict); 2695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddInteger("signalToNoiseRatio", (*iter)->signal_to_noise, wifi_dict); 2705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) wifi_access_point_list->Append(wifi_dict); 2715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) request->Set("wifiAccessPoints", wifi_access_point_list); 2735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void FormatPositionError(const GURL& server_url, 2765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const std::string& message, 2775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Geoposition* position) { 2785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) position->error_code = Geoposition::ERROR_CODE_POSITION_UNAVAILABLE; 2795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) position->error_message = "Network location provider at '"; 2805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) position->error_message += server_url.GetOrigin().spec(); 2815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) position->error_message += "' : "; 2825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) position->error_message += message; 2835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) position->error_message += "."; 2845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) VLOG(1) << "NetworkLocationRequest::GetLocationFromResponse() : " 2855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) << position->error_message; 2865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void GetLocationFromResponse(bool http_post_result, 2895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int status_code, 2905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const std::string& response_body, 2915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::Time& timestamp, 2925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const GURL& server_url, 2935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Geoposition* position, 294a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) base::string16* access_token) { 2955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(position); 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(access_token); 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // HttpPost can fail for a number of reasons. Most likely this is because 2995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // we're offline, or there was no response. 3005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!http_post_result) { 3015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FormatPositionError(server_url, "No response received", position); 3024e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) RecordUmaEvent(NETWORK_LOCATION_REQUEST_EVENT_RESPONSE_EMPTY); 3035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 3045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (status_code != 200) { // HTTP OK. 3065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string message = "Returned error code "; 3075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) message += base::IntToString(status_code); 3085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FormatPositionError(server_url, message, position); 3094e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) RecordUmaEvent(NETWORK_LOCATION_REQUEST_EVENT_RESPONSE_NOT_OK); 3105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 3115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 312424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) // We use the timestamp from the wifi data that was used to generate 3135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // this position fix. 3145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!ParseServerResponse(response_body, timestamp, position, access_token)) { 3155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We failed to parse the repsonse. 3165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FormatPositionError(server_url, "Response was malformed", position); 3174e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) RecordUmaEvent(NETWORK_LOCATION_REQUEST_EVENT_RESPONSE_MALFORMED); 3185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 3195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The response was successfully parsed, but it may not be a valid 3215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // position fix. 3225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!position->Validate()) { 3235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FormatPositionError(server_url, 3245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "Did not provide a good position fix", position); 3254e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) RecordUmaEvent(NETWORK_LOCATION_REQUEST_EVENT_RESPONSE_INVALID_FIX); 3265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 3275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3284e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) RecordUmaEvent(NETWORK_LOCATION_REQUEST_EVENT_RESPONSE_SUCCESS); 3295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Numeric values without a decimal point have type integer and IsDouble() will 3325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// return false. This is convenience function for detecting integer or floating 3335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// point numeric values. Note that isIntegral() includes boolean values, which 3345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// is not what we want. 3355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool GetAsDouble(const base::DictionaryValue& object, 3365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const std::string& property_name, 3375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) double* out) { 3385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(out); 3397d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) const base::Value* value = NULL; 3405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!object.Get(property_name, &value)) 3415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 3425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int value_as_int; 3435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(value); 3445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (value->GetAsInteger(&value_as_int)) { 3455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *out = value_as_int; 3465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 3475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return value->GetAsDouble(out); 3495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool ParseServerResponse(const std::string& response_body, 3525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::Time& timestamp, 3535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Geoposition* position, 354a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) base::string16* access_token) { 3555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(position); 3565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!position->Validate()); 3575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(position->error_code == Geoposition::ERROR_CODE_NONE); 3585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(access_token); 3595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!timestamp.is_null()); 3605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (response_body.empty()) { 3625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LOG(WARNING) << "ParseServerResponse() : Response was empty."; 3635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 3645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DVLOG(1) << "ParseServerResponse() : Parsing response " << response_body; 3665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Parse the response, ignoring comments. 3685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string error_msg; 3697d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) scoped_ptr<base::Value> response_value(base::JSONReader::ReadAndReturnError( 3705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) response_body, base::JSON_PARSE_RFC, NULL, &error_msg)); 3715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (response_value == NULL) { 3725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LOG(WARNING) << "ParseServerResponse() : JSONReader failed : " 3735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) << error_msg; 3745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 3755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3777d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) if (!response_value->IsType(base::Value::TYPE_DICTIONARY)) { 3785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) VLOG(1) << "ParseServerResponse() : Unexpected response type " 3795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) << response_value->GetType(); 3805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 3815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::DictionaryValue* response_object = 3835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static_cast<base::DictionaryValue*>(response_value.get()); 3845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Get the access token, if any. 3865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) response_object->GetString(kAccessTokenString, access_token); 3875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Get the location 3897d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) const base::Value* location_value = NULL; 3905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!response_object->Get(kLocationString, &location_value)) { 3915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) VLOG(1) << "ParseServerResponse() : Missing location attribute."; 3925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // GLS returns a response with no location property to represent 3935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // no fix available; return true to indicate successful parse. 3945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 3955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(location_value); 3975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3987d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) if (!location_value->IsType(base::Value::TYPE_DICTIONARY)) { 3997d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) if (!location_value->IsType(base::Value::TYPE_NULL)) { 4005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) VLOG(1) << "ParseServerResponse() : Unexpected location type " 4015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) << location_value->GetType(); 4025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // If the network provider was unable to provide a position fix, it should 4035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // return a HTTP 200, with "location" : null. Otherwise it's an error. 4045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 4055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; // Successfully parsed response containing no fix. 4075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::DictionaryValue* location_object = 4095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static_cast<const base::DictionaryValue*>(location_value); 4105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // latitude and longitude fields are always required. 412116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch double latitude = 0; 413116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch double longitude = 0; 4145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!GetAsDouble(*location_object, kLatitudeString, &latitude) || 4155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) !GetAsDouble(*location_object, kLongitudeString, &longitude)) { 4165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) VLOG(1) << "ParseServerResponse() : location lacks lat and/or long."; 4175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 4185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // All error paths covered: now start actually modifying postion. 4205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) position->latitude = latitude; 4215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) position->longitude = longitude; 4225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) position->timestamp = timestamp; 4235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Other fields are optional. 4255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GetAsDouble(*response_object, kAccuracyString, &position->accuracy); 4265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 4285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 4315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace content 433