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" 13868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "base/strings/string_number_conversions.h" 14868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "base/strings/utf_string_conversions.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/values.h" 162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "content/browser/geolocation/location_arbitrator_impl.h" 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/common/geoposition.h" 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "google_apis/google_api_keys.h" 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/escape.h" 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/load_flags.h" 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/url_request/url_fetcher.h" 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/url_request/url_request_context_getter.h" 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/url_request/url_request_status.h" 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace content { 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const size_t kMaxRequestLength = 2048; 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const char kAccessTokenString[] = "accessToken"; 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const char kLocationString[] = "location"; 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const char kLatitudeString[] = "lat"; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const char kLongitudeString[] = "lng"; 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const char kAccuracyString[] = "accuracy"; 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const char kStatusString[] = "status"; 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const char kStatusOKString[] = "OK"; 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Local functions 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Creates the request url to send to the server. 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)GURL FormRequestURL(const GURL& url); 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void FormUploadData(const WifiData& wifi_data, 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::Time& timestamp, 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const string16& access_token, 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string* upload_data); 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Parsers the server response. 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void GetLocationFromResponse(bool http_post_result, 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int status_code, 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const std::string& response_body, 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::Time& timestamp, 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const GURL& server_url, 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Geoposition* position, 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) string16* access_token); 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Parses the server response body. Returns true if parsing was successful. 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Sets |*position| to the parsed location if a valid fix was received, 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// otherwise leaves it unchanged. 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool ParseServerResponse(const std::string& response_body, 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::Time& timestamp, 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Geoposition* position, 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) string16* access_token); 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void AddWifiData(const WifiData& wifi_data, 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int age_milliseconds, 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::DictionaryValue* request); 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int NetworkLocationRequest::url_fetcher_id_for_tests = 0; 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)NetworkLocationRequest::NetworkLocationRequest( 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) net::URLRequestContextGetter* context, 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const GURL& url, 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ListenerInterface* listener) 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : url_context_(context), listener_(listener), 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) url_(url) { 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(listener); 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)NetworkLocationRequest::~NetworkLocationRequest() { 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool NetworkLocationRequest::MakeRequest(const string16& access_token, 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const WifiData& wifi_data, 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::Time& timestamp) { 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (url_fetcher_ != NULL) { 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DVLOG(1) << "NetworkLocationRequest : Cancelling pending request"; 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) url_fetcher_.reset(); 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) wifi_data_ = wifi_data; 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) timestamp_ = timestamp; 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GURL request_url = FormRequestURL(url_); 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) url_fetcher_.reset(net::URLFetcher::Create( 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) url_fetcher_id_for_tests, request_url, net::URLFetcher::POST, this)); 95868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) url_fetcher_->SetRequestContext(url_context_.get()); 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string upload_data; 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FormUploadData(wifi_data, timestamp, access_token, &upload_data); 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) url_fetcher_->SetUploadData("application/json", upload_data); 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) url_fetcher_->SetLoadFlags( 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) net::LOAD_BYPASS_CACHE | net::LOAD_DISABLE_CACHE | 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) net::LOAD_DO_NOT_SAVE_COOKIES | net::LOAD_DO_NOT_SEND_COOKIES | 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) net::LOAD_DO_NOT_SEND_AUTH_DATA); 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) start_time_ = base::TimeTicks::Now(); 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) url_fetcher_->Start(); 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void NetworkLocationRequest::OnURLFetchComplete( 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const net::URLFetcher* source) { 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_EQ(url_fetcher_.get(), source); 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) net::URLRequestStatus status = source->GetStatus(); 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int response_code = source->GetResponseCode(); 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Geoposition position; 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) string16 access_token; 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string data; 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) source->GetResponseAsString(&data); 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GetLocationFromResponse(status.is_success(), 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) response_code, 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) data, 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) timestamp_, 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) source->GetURL(), 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &position, 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &access_token); 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const bool server_error = 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) !status.is_success() || (response_code >= 500 && response_code < 600); 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) url_fetcher_.reset(); 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!server_error) { 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::TimeDelta request_time = base::TimeTicks::Now() - start_time_; 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UMA_HISTOGRAM_CUSTOM_TIMES( 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "Net.Wifi.LbsLatency", 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) request_time, 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::TimeDelta::FromMilliseconds(1), 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::TimeDelta::FromSeconds(10), 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 100); 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(listener_); 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DVLOG(1) << "NetworkLocationRequest::Run() : Calling listener with position."; 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) listener_->LocationResponseAvailable(position, server_error, access_token, 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) wifi_data_); 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Local functions. 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct AccessPointLess { 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool operator()(const AccessPointData* ap1, 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const AccessPointData* ap2) const { 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return ap2->radio_signal_strength < ap1->radio_signal_strength; 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)GURL FormRequestURL(const GURL& url) { 1592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (url == GeolocationArbitratorImpl::DefaultNetworkProviderURL()) { 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string api_key = google_apis::GetAPIKey(); 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!api_key.empty()) { 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string query(url.query()); 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!query.empty()) 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) query += "&"; 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) query += "key=" + net::EscapeQueryParamValue(api_key, true); 1665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GURL::Replacements replacements; 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) replacements.SetQueryStr(query); 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return url.ReplaceComponents(replacements); 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return url; 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void FormUploadData(const WifiData& wifi_data, 1755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::Time& timestamp, 1765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const string16& access_token, 1775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string* upload_data) { 1785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int age = kint32min; // Invalid so AddInteger() will ignore. 1795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!timestamp.is_null()) { 1805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Convert absolute timestamps into a relative age. 1815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int64 delta_ms = (base::Time::Now() - timestamp).InMilliseconds(); 1825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (delta_ms >= 0 && delta_ms < kint32max) 1835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) age = static_cast<int>(delta_ms); 1845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::DictionaryValue request; 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddWifiData(wifi_data, age, &request); 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!access_token.empty()) 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) request.SetString(kAccessTokenString, access_token); 1905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::JSONWriter::Write(&request, upload_data); 1915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void AddString(const std::string& property_name, const std::string& value, 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::DictionaryValue* dict) { 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(dict); 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!value.empty()) 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) dict->SetString(property_name, value); 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void AddInteger(const std::string& property_name, int value, 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::DictionaryValue* dict) { 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(dict); 2035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (value != kint32min) 2045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) dict->SetInteger(property_name, value); 2055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void AddWifiData(const WifiData& wifi_data, 2085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int age_milliseconds, 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::DictionaryValue* request) { 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(request); 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (wifi_data.access_point_data.empty()) 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) typedef std::multiset<const AccessPointData*, AccessPointLess> AccessPointSet; 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AccessPointSet access_points_by_signal_strength; 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (WifiData::AccessPointDataSet::const_iterator iter = 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) wifi_data.access_point_data.begin(); 2205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) iter != wifi_data.access_point_data.end(); 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ++iter) { 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) access_points_by_signal_strength.insert(&(*iter)); 2235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::ListValue* wifi_access_point_list = new base::ListValue(); 2265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (AccessPointSet::iterator iter = 2275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) access_points_by_signal_strength.begin(); 2285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) iter != access_points_by_signal_strength.end(); 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ++iter) { 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::DictionaryValue* wifi_dict = new base::DictionaryValue(); 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddString("macAddress", UTF16ToUTF8((*iter)->mac_address), wifi_dict); 2325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddInteger("signalStrength", (*iter)->radio_signal_strength, wifi_dict); 2335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddInteger("age", age_milliseconds, wifi_dict); 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddInteger("channel", (*iter)->channel, wifi_dict); 2355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddInteger("signalToNoiseRatio", (*iter)->signal_to_noise, wifi_dict); 2365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) wifi_access_point_list->Append(wifi_dict); 2375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) request->Set("wifiAccessPoints", wifi_access_point_list); 2395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void FormatPositionError(const GURL& server_url, 2425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const std::string& message, 2435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Geoposition* position) { 2445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) position->error_code = Geoposition::ERROR_CODE_POSITION_UNAVAILABLE; 2455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) position->error_message = "Network location provider at '"; 2465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) position->error_message += server_url.GetOrigin().spec(); 2475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) position->error_message += "' : "; 2485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) position->error_message += message; 2495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) position->error_message += "."; 2505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) VLOG(1) << "NetworkLocationRequest::GetLocationFromResponse() : " 2515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) << position->error_message; 2525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void GetLocationFromResponse(bool http_post_result, 2555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int status_code, 2565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const std::string& response_body, 2575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::Time& timestamp, 2585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const GURL& server_url, 2595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Geoposition* position, 2605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) string16* access_token) { 2615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(position); 2625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(access_token); 2635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // HttpPost can fail for a number of reasons. Most likely this is because 2655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // we're offline, or there was no response. 2665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!http_post_result) { 2675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FormatPositionError(server_url, "No response received", position); 2685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 2695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (status_code != 200) { // HTTP OK. 2715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string message = "Returned error code "; 2725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) message += base::IntToString(status_code); 2735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FormatPositionError(server_url, message, position); 2745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 2755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We use the timestamp from the device data that was used to generate 2775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // this position fix. 2785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!ParseServerResponse(response_body, timestamp, position, access_token)) { 2795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We failed to parse the repsonse. 2805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FormatPositionError(server_url, "Response was malformed", position); 2815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 2825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The response was successfully parsed, but it may not be a valid 2845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // position fix. 2855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!position->Validate()) { 2865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FormatPositionError(server_url, 2875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "Did not provide a good position fix", position); 2885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 2895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Numeric values without a decimal point have type integer and IsDouble() will 2935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// return false. This is convenience function for detecting integer or floating 2945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// point numeric values. Note that isIntegral() includes boolean values, which 2955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// is not what we want. 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool GetAsDouble(const base::DictionaryValue& object, 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const std::string& property_name, 2985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) double* out) { 2995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(out); 3007d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) const base::Value* value = NULL; 3015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!object.Get(property_name, &value)) 3025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 3035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int value_as_int; 3045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(value); 3055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (value->GetAsInteger(&value_as_int)) { 3065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *out = value_as_int; 3075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 3085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return value->GetAsDouble(out); 3105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool ParseServerResponse(const std::string& response_body, 3135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::Time& timestamp, 3145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Geoposition* position, 3155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) string16* access_token) { 3165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(position); 3175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!position->Validate()); 3185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(position->error_code == Geoposition::ERROR_CODE_NONE); 3195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(access_token); 3205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!timestamp.is_null()); 3215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (response_body.empty()) { 3235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LOG(WARNING) << "ParseServerResponse() : Response was empty."; 3245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 3255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DVLOG(1) << "ParseServerResponse() : Parsing response " << response_body; 3275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Parse the response, ignoring comments. 3295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string error_msg; 3307d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) scoped_ptr<base::Value> response_value(base::JSONReader::ReadAndReturnError( 3315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) response_body, base::JSON_PARSE_RFC, NULL, &error_msg)); 3325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (response_value == NULL) { 3335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LOG(WARNING) << "ParseServerResponse() : JSONReader failed : " 3345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) << error_msg; 3355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 3365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3387d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) if (!response_value->IsType(base::Value::TYPE_DICTIONARY)) { 3395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) VLOG(1) << "ParseServerResponse() : Unexpected response type " 3405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) << response_value->GetType(); 3415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 3425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::DictionaryValue* response_object = 3445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static_cast<base::DictionaryValue*>(response_value.get()); 3455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Get the access token, if any. 3475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) response_object->GetString(kAccessTokenString, access_token); 3485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Get the location 3507d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) const base::Value* location_value = NULL; 3515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!response_object->Get(kLocationString, &location_value)) { 3525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) VLOG(1) << "ParseServerResponse() : Missing location attribute."; 3535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // GLS returns a response with no location property to represent 3545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // no fix available; return true to indicate successful parse. 3555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 3565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(location_value); 3585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3597d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) if (!location_value->IsType(base::Value::TYPE_DICTIONARY)) { 3607d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) if (!location_value->IsType(base::Value::TYPE_NULL)) { 3615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) VLOG(1) << "ParseServerResponse() : Unexpected location type " 3625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) << location_value->GetType(); 3635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // If the network provider was unable to provide a position fix, it should 3645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // return a HTTP 200, with "location" : null. Otherwise it's an error. 3655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 3665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; // Successfully parsed response containing no fix. 3685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::DictionaryValue* location_object = 3705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static_cast<const base::DictionaryValue*>(location_value); 3715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // latitude and longitude fields are always required. 3735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) double latitude, longitude; 3745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!GetAsDouble(*location_object, kLatitudeString, &latitude) || 3755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) !GetAsDouble(*location_object, kLongitudeString, &longitude)) { 3765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) VLOG(1) << "ParseServerResponse() : location lacks lat and/or long."; 3775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 3785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // All error paths covered: now start actually modifying postion. 3805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) position->latitude = latitude; 3815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) position->longitude = longitude; 3825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) position->timestamp = timestamp; 3835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Other fields are optional. 3855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GetAsDouble(*response_object, kAccuracyString, &position->accuracy); 3865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 3885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 3915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace content 393