variations_service.cc revision a02191e04bc25c4935f804f2c080ae28663d096d
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 "chrome/browser/metrics/variations/variations_service.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <set> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/build_time.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/command_line.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/metrics/histogram.h" 12868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "base/metrics/sparse_histogram.h" 132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/prefs/pref_registry_simple.h" 142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/prefs/pref_service.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/version.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/browser/browser_process.h" 174e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)#include "chrome/browser/network_time/network_time_tracker.h" 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/common/chrome_switches.h" 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/common/pref_names.h" 205d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "components/user_prefs/pref_registry_syncable.h" 2158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)#include "components/variations/proto/variations_seed.pb.h" 22424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles)#include "components/variations/variations_seed_processor.h" 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/browser/browser_thread.h" 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/load_flags.h" 25868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "net/base/net_errors.h" 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/network_change_notifier.h" 272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "net/base/url_util.h" 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/http/http_response_headers.h" 292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "net/http/http_status_code.h" 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/http/http_util.h" 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/url_request/url_fetcher.h" 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/url_request/url_request_status.h" 33f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)#include "ui/base/device_form_factor.h" 34eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch#include "url/gurl.h" 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 36c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#if defined(OS_CHROMEOS) 37c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "chrome/browser/chromeos/settings/cros_settings.h" 38c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#endif 39c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace chrome_variations { 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Default server of Variations seed info. 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const char kDefaultVariationsServerURL[] = 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "https://clients4.google.com/chrome-variations/seed"; 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const int kMaxRetrySeedFetch = 5; 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// TODO(mad): To be removed when we stop updating the NetworkTimeTracker. 502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// For the HTTP date headers, the resolution of the server time is 1 second. 512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const int64 kServerTimeResolutionMs = 1000; 522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Wrapper around channel checking, used to enable channel mocking for 542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// testing. If the current browser channel is not UNKNOWN, this will return 552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// that channel value. Otherwise, if the fake channel flag is provided, this 562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// will return the fake channel. Failing that, this will return the UNKNOWN 572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// channel. 58ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben MurdochStudy_Channel GetChannelForVariations() { 59ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch switch (chrome::VersionInfo::GetChannel()) { 60ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch case chrome::VersionInfo::CHANNEL_CANARY: 61ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch return Study_Channel_CANARY; 62ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch case chrome::VersionInfo::CHANNEL_DEV: 63ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch return Study_Channel_DEV; 64ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch case chrome::VersionInfo::CHANNEL_BETA: 65ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch return Study_Channel_BETA; 66ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch case chrome::VersionInfo::CHANNEL_STABLE: 67ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch return Study_Channel_STABLE; 68ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch case chrome::VersionInfo::CHANNEL_UNKNOWN: 69ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch break; 70ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch } 71ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch const std::string forced_channel = 722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CommandLine::ForCurrentProcess()->GetSwitchValueASCII( 732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) switches::kFakeVariationsChannel); 742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (forced_channel == "stable") 75ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch return Study_Channel_STABLE; 76ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch if (forced_channel == "beta") 77ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch return Study_Channel_BETA; 78ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch if (forced_channel == "dev") 79ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch return Study_Channel_DEV; 80ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch if (forced_channel == "canary") 81ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch return Study_Channel_CANARY; 82ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch DVLOG(1) << "Invalid channel provided: " << forced_channel; 83ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch return Study_Channel_UNKNOWN; 842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 86c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// Returns a string that will be used for the value of the 'osname' URL param 87c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// to the variations server. 88c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)std::string GetPlatformString() { 89c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#if defined(OS_WIN) 90c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return "win"; 9190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)#elif defined(OS_IOS) 9290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) return "ios"; 93c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#elif defined(OS_MACOSX) 94c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return "mac"; 95c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#elif defined(OS_CHROMEOS) 96c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return "chromeos"; 97c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#elif defined(OS_ANDROID) 98c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return "android"; 99c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#elif defined(OS_LINUX) || defined(OS_BSD) || defined(OS_SOLARIS) 100c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Default BSD and SOLARIS to Linux to not break those builds, although these 101c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // platforms are not officially supported by Chrome. 102c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return "linux"; 103c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#else 104c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#error Unknown platform 105c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#endif 106c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 107c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 1085d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// Gets the restrict parameter from |policy_pref_service| or from Chrome OS 1095d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// settings in the case of that platform. 1105d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)std::string GetRestrictParameterPref(PrefService* policy_pref_service) { 111c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) std::string parameter; 112c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#if defined(OS_CHROMEOS) 113c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) chromeos::CrosSettings::Get()->GetString( 114c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) chromeos::kVariationsRestrictParameter, ¶meter); 115c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#else 1165d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (policy_pref_service) { 1175d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) parameter = 1185d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) policy_pref_service->GetString(prefs::kVariationsRestrictParameter); 1195d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 120c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#endif 121c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return parameter; 122c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 123c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 124868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)enum ResourceRequestsAllowedState { 125868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) RESOURCE_REQUESTS_ALLOWED, 126868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) RESOURCE_REQUESTS_NOT_ALLOWED, 127868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) RESOURCE_REQUESTS_ALLOWED_NOTIFIED, 128f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) RESOURCE_REQUESTS_NOT_ALLOWED_EULA_NOT_ACCEPTED, 129f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) RESOURCE_REQUESTS_NOT_ALLOWED_NETWORK_DOWN, 130f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) RESOURCE_REQUESTS_NOT_ALLOWED_COMMAND_LINE_DISABLED, 131868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) RESOURCE_REQUESTS_ALLOWED_ENUM_SIZE, 132868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)}; 133868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 134868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// Records UMA histogram with the current resource requests allowed state. 135868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)void RecordRequestsAllowedHistogram(ResourceRequestsAllowedState state) { 136868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) UMA_HISTOGRAM_ENUMERATION("Variations.ResourceRequestsAllowed", state, 137868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) RESOURCE_REQUESTS_ALLOWED_ENUM_SIZE); 138868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)} 139868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 140f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)// Converts ResourceRequestAllowedNotifier::State to the corresponding 141f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)// ResourceRequestsAllowedState value. 142f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)ResourceRequestsAllowedState ResourceRequestStateToHistogramValue( 143f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) ResourceRequestAllowedNotifier::State state) { 144f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) switch (state) { 145f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) case ResourceRequestAllowedNotifier::DISALLOWED_EULA_NOT_ACCEPTED: 146f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) return RESOURCE_REQUESTS_NOT_ALLOWED_EULA_NOT_ACCEPTED; 147f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) case ResourceRequestAllowedNotifier::DISALLOWED_NETWORK_DOWN: 148f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) return RESOURCE_REQUESTS_NOT_ALLOWED_NETWORK_DOWN; 149f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) case ResourceRequestAllowedNotifier::DISALLOWED_COMMAND_LINE_DISABLED: 150f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) return RESOURCE_REQUESTS_NOT_ALLOWED_COMMAND_LINE_DISABLED; 151f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) case ResourceRequestAllowedNotifier::ALLOWED: 1525d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return RESOURCE_REQUESTS_ALLOWED; 153f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) } 154f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NOTREACHED(); 155f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) return RESOURCE_REQUESTS_NOT_ALLOWED; 156f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)} 157f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 1587dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 159f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)// Get current form factor and convert it from enum DeviceFormFactor to enum 160f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)// Study_FormFactor. 161f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)Study_FormFactor GetCurrentFormFactor() { 162f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) switch (ui::GetDeviceFormFactor()) { 163f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) case ui::DEVICE_FORM_FACTOR_PHONE: 164f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) return Study_FormFactor_PHONE; 165f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) case ui::DEVICE_FORM_FACTOR_TABLET: 166f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) return Study_FormFactor_TABLET; 167f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) case ui::DEVICE_FORM_FACTOR_DESKTOP: 168f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) return Study_FormFactor_DESKTOP; 169f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) } 170f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NOTREACHED(); 171f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) return Study_FormFactor_DESKTOP; 172f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)} 173f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 174a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch// Returns the date that should be used by the VariationsSeedProcessor to do 175a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch// expiry and start date checks. 176a02191e04bc25c4935f804f2c080ae28663d096dBen Murdochbase::Time GetReferenceDateForExpiryChecks(PrefService* local_state) { 177a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch const int64 date_value = local_state->GetInt64(prefs::kVariationsSeedDate); 178a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch const base::Time seed_date = base::Time::FromInternalValue(date_value); 179a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch const base::Time build_time = base::GetBuildTime(); 180a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch // Use the build time for date checks if either the seed date is invalid or 181a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch // the build time is newer than the seed date. 182a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch base::Time reference_date = seed_date; 183a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch if (seed_date.is_null() || seed_date < build_time) 184a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch reference_date = build_time; 185a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch return reference_date; 186a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch} 187a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)VariationsService::VariationsService(PrefService* local_state) 1912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : local_state_(local_state), 1925d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) policy_pref_service_(local_state), 1935d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) seed_store_(local_state), 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) create_trials_from_seed_called_(false), 1957d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) initial_request_completed_(false), 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) resource_request_allowed_notifier_( 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) new ResourceRequestAllowedNotifier) { 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) resource_request_allowed_notifier_->Init(this); 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 201c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)VariationsService::VariationsService(ResourceRequestAllowedNotifier* notifier, 202c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) PrefService* local_state) 203c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) : local_state_(local_state), 2045d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) policy_pref_service_(local_state), 2055d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) seed_store_(local_state), 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) create_trials_from_seed_called_(false), 2077d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) initial_request_completed_(false), 2085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) resource_request_allowed_notifier_(notifier) { 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) resource_request_allowed_notifier_->Init(this); 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)VariationsService::~VariationsService() { 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)bool VariationsService::CreateTrialsFromSeed() { 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) create_trials_from_seed_called_ = true; 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 21858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) VariationsSeed seed; 2195d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (!seed_store_.LoadSeed(&seed)) 2205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const chrome::VersionInfo current_version_info; 2235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!current_version_info.is_valid()) 2245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 226ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch const base::Version current_version(current_version_info.Version()); 227ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch if (!current_version.IsValid()) 228ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch return false; 229ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch 230558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch VariationsSeedProcessor().CreateTrialsFromSeed( 231a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch seed, g_browser_process->GetApplicationLocale(), 232a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch GetReferenceDateForExpiryChecks(local_state_), current_version, 233a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch GetChannelForVariations(), GetCurrentFormFactor()); 2342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Log the "freshness" of the seed that was just used. The freshness is the 2362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // time between the last successful seed download and now. 2372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const int64 last_fetch_time_internal = 2382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) local_state_->GetInt64(prefs::kVariationsLastFetchTime); 2392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (last_fetch_time_internal) { 2402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const base::Time now = base::Time::Now(); 2412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const base::TimeDelta delta = 2422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) now - base::Time::FromInternalValue(last_fetch_time_internal); 2432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Log the value in number of minutes. 2442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) UMA_HISTOGRAM_CUSTOM_COUNTS("Variations.SeedFreshness", delta.InMinutes(), 2452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1, base::TimeDelta::FromDays(30).InMinutes(), 50); 2465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 2495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void VariationsService::StartRepeatedVariationsSeedFetch() { 2525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI)); 2535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2545d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Initialize the Variations server URL. 2555d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) variations_server_url_ = GetVariationsServerURL(policy_pref_service_); 2565d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 2575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Check that |CreateTrialsFromSeed| was called, which is necessary to 2585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // retrieve the serial number that will be sent to the server. 2595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(create_trials_from_seed_called_); 2605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 261c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK(!request_scheduler_.get()); 262c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Note that the act of instantiating the scheduler will start the fetch, if 263c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // the scheduler deems appropriate. Using Unretained is fine here since the 264c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // lifespan of request_scheduler_ is guaranteed to be shorter than that of 265c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // this service. 266c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) request_scheduler_.reset(VariationsRequestScheduler::Create( 267c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) base::Bind(&VariationsService::FetchVariationsSeed, 268c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) base::Unretained(this)), local_state_)); 269c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) request_scheduler_->Start(); 2702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 2712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2725d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// TODO(rkaplow): Handle this and the similar event in metrics_service by 2735d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// observing an 'OnAppEnterForeground' event in RequestScheduler instead of 2745d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// requiring the frontend code to notify each service individually. Since the 2755d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// scheduler will handle it directly the VariationService shouldn't need to 2765d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// know details of this anymore. 2775d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)void VariationsService::OnAppEnterForeground() { 2785d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) request_scheduler_->OnAppEnterForeground(); 2795d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 2805d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 2815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 2825d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)GURL VariationsService::GetVariationsServerURL( 2835d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) PrefService* policy_pref_service) { 2842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::string server_url_string(CommandLine::ForCurrentProcess()-> 2852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) GetSwitchValueASCII(switches::kVariationsServerURL)); 2862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (server_url_string.empty()) 2872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) server_url_string = kDefaultVariationsServerURL; 2882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) GURL server_url = GURL(server_url_string); 289c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 2905d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const std::string restrict_param = 2915d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) GetRestrictParameterPref(policy_pref_service); 292c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (!restrict_param.empty()) { 293c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) server_url = net::AppendOrReplaceQueryParameter(server_url, 294c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) "restrict", 295c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) restrict_param); 2962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 297c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 298c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) server_url = net::AppendOrReplaceQueryParameter(server_url, "osname", 299c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) GetPlatformString()); 300c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 3012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(server_url.is_valid()); 3022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return server_url; 3032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#if defined(OS_WIN) 3062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void VariationsService::StartGoogleUpdateRegistrySync() { 3072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) registry_syncer_.RequestRegistrySync(); 3085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#endif 3105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void VariationsService::SetCreateTrialsFromSeedCalledForTesting(bool called) { 3125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) create_trials_from_seed_called_ = called; 3135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// static 3162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)std::string VariationsService::GetDefaultVariationsServerURLForTesting() { 3172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return kDefaultVariationsServerURL; 3182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// static 3212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void VariationsService::RegisterPrefs(PrefRegistrySimple* registry) { 3225d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) VariationsSeedStore::RegisterPrefs(registry); 3232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) registry->RegisterInt64Pref(prefs::kVariationsLastFetchTime, 0); 3245d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // This preference will only be written by the policy service, which will fill 3255d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // it according to a value stored in the User Policy. 3262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) registry->RegisterStringPref(prefs::kVariationsRestrictParameter, 3272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) std::string()); 3282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// static 3315d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)void VariationsService::RegisterProfilePrefs( 3325d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) user_prefs::PrefRegistrySyncable* registry) { 3335d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // This preference will only be written by the policy service, which will fill 3345d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // it according to a value stored in the User Policy. 3355d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) registry->RegisterStringPref( 3365d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) prefs::kVariationsRestrictParameter, 3375d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::string(), 3385d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF); 3395d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 3405d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 3415d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// static 3422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)VariationsService* VariationsService::Create(PrefService* local_state) { 343c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#if !defined(GOOGLE_CHROME_BUILD) 3442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Unless the URL was provided, unsupported builds should return NULL to 3452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // indicate that the service should not be used. 3462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!CommandLine::ForCurrentProcess()->HasSwitch( 347b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) switches::kVariationsServerURL)) { 348b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) DVLOG(1) << "Not creating VariationsService in unofficial build without --" 349b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) << switches::kVariationsServerURL << " specified."; 3502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return NULL; 351b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) } 3522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#endif 3532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return new VariationsService(local_state); 3542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void VariationsService::DoActualFetch() { 3575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pending_seed_request_.reset(net::URLFetcher::Create( 3582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 0, variations_server_url_, net::URLFetcher::GET, this)); 3595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pending_seed_request_->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES | 3605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) net::LOAD_DO_NOT_SAVE_COOKIES); 3615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pending_seed_request_->SetRequestContext( 3625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_browser_process->system_request_context()); 3632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) pending_seed_request_->SetMaxRetriesOn5xx(kMaxRetrySeedFetch); 3645d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (!seed_store_.variations_serial_number().empty()) { 3655d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) pending_seed_request_->AddExtraRequestHeader( 3665d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) "If-Match:" + seed_store_.variations_serial_number()); 3675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pending_seed_request_->Start(); 3695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 370868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const base::TimeTicks now = base::TimeTicks::Now(); 371868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) base::TimeDelta time_since_last_fetch; 372868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // Record a time delta of 0 (default value) if there was no previous fetch. 373868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) if (!last_request_started_time_.is_null()) 374868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) time_since_last_fetch = now - last_request_started_time_; 375868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) UMA_HISTOGRAM_CUSTOM_COUNTS("Variations.TimeSinceLastFetchAttempt", 376868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) time_since_last_fetch.InMinutes(), 0, 377868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) base::TimeDelta::FromDays(7).InMinutes(), 50); 378868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) last_request_started_time_ = now; 3795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 381a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)void VariationsService::StoreSeed(const std::string& seed_data, 382a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) const std::string& seed_signature, 383a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) const base::Time& date_fetched) { 384a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch if (!seed_store_.StoreSeedData(seed_data, seed_signature, date_fetched)) 385a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch return; 386a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch RecordLastFetchTime(); 387a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)} 388a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 3895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void VariationsService::FetchVariationsSeed() { 3905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI)); 3915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 392f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) const ResourceRequestAllowedNotifier::State state = 393f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) resource_request_allowed_notifier_->GetResourceRequestsAllowedState(); 3945d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) RecordRequestsAllowedHistogram(ResourceRequestStateToHistogramValue(state)); 395f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (state != ResourceRequestAllowedNotifier::ALLOWED) { 3965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DVLOG(1) << "Resource requests were not allowed. Waiting for notification."; 3975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 3985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DoActualFetch(); 4015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void VariationsService::OnURLFetchComplete(const net::URLFetcher* source) { 4045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_EQ(pending_seed_request_.get(), source); 4057d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) 4067d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) const bool is_first_request = !initial_request_completed_; 4077d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) initial_request_completed_ = true; 4087d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) 4095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The fetcher will be deleted when the request is handled. 4102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) scoped_ptr<const net::URLFetcher> request(pending_seed_request_.release()); 411868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const net::URLRequestStatus& request_status = request->GetStatus(); 412868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) if (request_status.status() != net::URLRequestStatus::SUCCESS) { 413868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) UMA_HISTOGRAM_SPARSE_SLOWLY("Variations.FailedRequestErrorCode", 414868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) -request_status.error()); 415868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) DVLOG(1) << "Variations server request failed with error: " 416868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) << request_status.error() << ": " 417868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) << net::ErrorToString(request_status.error()); 4187d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) // It's common for the very first fetch attempt to fail (e.g. the network 4197d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) // may not yet be available). In such a case, try again soon, rather than 4207d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) // waiting the full time interval. 4217d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) if (is_first_request) 4227d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) request_scheduler_->ScheduleFetchShortly(); 4235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 4245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Log the response code. 4272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const int response_code = request->GetResponseCode(); 428868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) UMA_HISTOGRAM_SPARSE_SLOWLY("Variations.SeedFetchResponseCode", 429868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) response_code); 4305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::TimeDelta latency = 4325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::TimeTicks::Now() - last_request_started_time_; 4335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::Time response_date; 4352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (response_code == net::HTTP_OK || 4362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) response_code == net::HTTP_NOT_MODIFIED) { 4372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool success = request->GetResponseHeaders()->GetDateValue(&response_date); 4382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(success || response_date.is_null()); 4392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!response_date.is_null()) { 441c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) NetworkTimeTracker::BuildNotifierUpdateCallback().Run( 4422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) response_date, 4432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::TimeDelta::FromMilliseconds(kServerTimeResolutionMs), 4442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) latency); 4452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 4462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 4472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (response_code != net::HTTP_OK) { 4492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DVLOG(1) << "Variations server request returned non-HTTP_OK response code: " 4502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) << response_code; 4512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (response_code == net::HTTP_NOT_MODIFIED) { 4522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) RecordLastFetchTime(); 453f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // Update the seed date value in local state (used for expiry check on 454f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) // next start up), since 304 is a successful response. 455a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) seed_store_.UpdateSeedDateAndLogDayChange(response_date); 4562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 4575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 4585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string seed_data; 4615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool success = request->GetResponseAsString(&seed_data); 4625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(success); 4635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4645d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) std::string seed_signature; 4655d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) request->GetResponseHeaders()->EnumerateHeader(NULL, 4665d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) "X-Seed-Signature", 4675d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) &seed_signature); 468a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) StoreSeed(seed_data, seed_signature, response_date); 4695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void VariationsService::OnResourceRequestsAllowed() { 4725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Note that this only attempts to fetch the seed at most once per period 4735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // (kSeedFetchPeriodHours). This works because 4745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // |resource_request_allowed_notifier_| only calls this method if an 4755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // attempt was made earlier that fails (which implies that the period had 4765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // elapsed). After a successful attempt is made, the notifier will know not 4775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // to call this method again until another failed attempt occurs. 478868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) RecordRequestsAllowedHistogram(RESOURCE_REQUESTS_ALLOWED_NOTIFIED); 4795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DVLOG(1) << "Retrying fetch."; 4805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DoActualFetch(); 481c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 482c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // This service must have created a scheduler in order for this to be called. 483c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK(request_scheduler_.get()); 484c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) request_scheduler_->Reset(); 4855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void VariationsService::RecordLastFetchTime() { 4882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // local_state_ is NULL in tests, so check it first. 4892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (local_state_) { 4902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) local_state_->SetInt64(prefs::kVariationsLastFetchTime, 4912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::Time::Now().ToInternalValue()); 4922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 4932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 4942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace chrome_variations 496