| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/installer/util/beacons.h" |
| |
| #include <stdint.h> |
| |
| #include "base/win/registry.h" |
| #include "base/win/win_util.h" |
| #include "chrome/install_static/install_details.h" |
| #include "chrome/install_static/install_util.h" |
| |
| void UpdateDefaultBrowserBeaconForPath(const base::FilePath& chrome_exe) { |
| // Getting Chrome's default state causes the beacon to be updated via a call |
| // to UpdateDefaultBrowserBeaconWithState below. |
| ignore_result(ShellUtil::GetChromeDefaultStateFromPath(chrome_exe)); |
| } |
| |
| void UpdateDefaultBrowserBeaconWithState( |
| ShellUtil::DefaultState default_state) { |
| switch (default_state) { |
| case ShellUtil::UNKNOWN_DEFAULT: |
| break; |
| case ShellUtil::NOT_DEFAULT: |
| installer_util::MakeFirstNotDefaultBeacon()->Update(); |
| break; |
| case ShellUtil::IS_DEFAULT: |
| case ShellUtil::OTHER_MODE_IS_DEFAULT: |
| installer_util::MakeLastWasDefaultBeacon()->Update(); |
| installer_util::MakeFirstNotDefaultBeacon()->Remove(); |
| break; |
| } |
| } |
| |
| void UpdateOsUpgradeBeacon() { |
| installer_util::MakeLastOsUpgradeBeacon()->Update(); |
| } |
| |
| namespace installer_util { |
| |
| std::unique_ptr<Beacon> MakeLastOsUpgradeBeacon() { |
| return std::make_unique<Beacon>(L"LastOsUpgrade", Beacon::BeaconType::LAST, |
| Beacon::BeaconScope::PER_INSTALL); |
| } |
| |
| std::unique_ptr<Beacon> MakeLastWasDefaultBeacon() { |
| return std::make_unique<Beacon>(L"LastWasDefault", Beacon::BeaconType::LAST, |
| Beacon::BeaconScope::PER_USER); |
| } |
| |
| std::unique_ptr<Beacon> MakeFirstNotDefaultBeacon() { |
| return std::make_unique<Beacon>(L"FirstNotDefault", Beacon::BeaconType::FIRST, |
| Beacon::BeaconScope::PER_USER); |
| } |
| |
| // Beacon ---------------------------------------------------------------------- |
| |
| Beacon::Beacon(base::StringPiece16 name, BeaconType type, BeaconScope scope) |
| : type_(type), |
| root_(install_static::IsSystemInstall() ? HKEY_LOCAL_MACHINE |
| : HKEY_CURRENT_USER), |
| scope_(scope) { |
| Initialize(name); |
| } |
| |
| Beacon::~Beacon() { |
| } |
| |
| void Beacon::Update() { |
| const REGSAM kAccess = KEY_WOW64_32KEY | KEY_QUERY_VALUE | KEY_SET_VALUE; |
| base::win::RegKey key; |
| |
| // Nothing to update if the key couldn't be created. This should only be the |
| // case for a developer build. |
| if (key.Create(root_, key_path_.c_str(), kAccess) != ERROR_SUCCESS) |
| return; |
| |
| // Nothing to do if this beacon is tracking the first occurrence of an event |
| // that has already been recorded. |
| if (type_ == BeaconType::FIRST && key.HasValue(value_name_.c_str())) |
| return; |
| |
| int64_t now(base::Time::Now().ToInternalValue()); |
| key.WriteValue(value_name_.c_str(), &now, sizeof(now), REG_QWORD); |
| } |
| |
| void Beacon::Remove() { |
| const REGSAM kAccess = KEY_WOW64_32KEY | KEY_SET_VALUE; |
| base::win::RegKey key; |
| |
| if (key.Open(root_, key_path_.c_str(), kAccess) == ERROR_SUCCESS) |
| key.DeleteValue(value_name_.c_str()); |
| } |
| |
| base::Time Beacon::Get() { |
| const REGSAM kAccess = KEY_WOW64_32KEY | KEY_QUERY_VALUE; |
| base::win::RegKey key; |
| int64_t now; |
| |
| if (key.Open(root_, key_path_.c_str(), kAccess) != ERROR_SUCCESS || |
| key.ReadInt64(value_name_.c_str(), &now) != ERROR_SUCCESS) { |
| return base::Time(); |
| } |
| |
| return base::Time::FromInternalValue(now); |
| } |
| |
| void Beacon::Initialize(base::StringPiece16 name) { |
| const install_static::InstallDetails& install_details = |
| install_static::InstallDetails::Get(); |
| |
| // When possible, beacons are located in the app's ClientState key. Per-user |
| // beacons for a per-machine install are located in a beacon-specific sub-key |
| // of the app's ClientStateMedium key. |
| if (scope_ == BeaconScope::PER_INSTALL || |
| !install_static::IsSystemInstall()) { |
| key_path_ = install_details.GetClientStateKeyPath(); |
| value_name_ = name.as_string(); |
| } else { |
| key_path_ = install_details.GetClientStateMediumKeyPath(); |
| key_path_.push_back(L'\\'); |
| key_path_.append(name.data(), name.size()); |
| // This should never fail. If it does, the beacon will be written in the |
| // key's default value, which is okay since the majority case is likely a |
| // machine with a single user. |
| if (!base::win::GetUserSidString(&value_name_)) |
| NOTREACHED(); |
| } |
| } |
| |
| } // namespace installer_util |