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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ash/policy/reporting/install_event_log_manager.h"
#include "ash/constants/ash_switches.h"
#include "base/check_op.h"
#include "base/command_line.h"
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/location.h"
#include "base/task/sequenced_task_runner.h"
#include "base/task/task_traits.h"
#include "base/task/thread_pool.h"
#include "base/time/time.h"
#include "chrome/browser/profiles/profile.h"
namespace policy {
namespace {
// Delay after which a change to the log contents is stored to disk. Further
// changes during this time window are picked up by the same store operation.
constexpr base::TimeDelta kStoreDelay = base::Seconds(5);
// Reduce store delay for integration tests.
constexpr base::TimeDelta kFastStoreDelay = base::Seconds(1);
// Interval between subsequent uploads to the server, if the log is not empty.
constexpr base::TimeDelta kUploadInterval = base::Hours(3);
// Delay of an expedited upload to the server, used for the first upload after
// the |InstallEventLogManagerBase| is constructed and whenever the log is
// getting full.
constexpr base::TimeDelta kExpeditedUploadDelay = base::Minutes(15);
// Reduce upload delay for integration tests.
constexpr base::TimeDelta kFastUploadDelay = base::Seconds(30);
// An expedited upload is scheduled whenever the total number of log entries
// exceeds |kTotalSizeExpeditedUploadThreshold| or the number of log entries for
// any single app exceeds |kMaxSizeExpeditedUploadThreshold|.
constexpr int kTotalSizeExpeditedUploadThreshold = 2048;
constexpr int kMaxSizeExpeditedUploadThreshold = 512;
// If install-log-fast-upload-for-tests flag is enabled, upload logs with
// reduced delay.
bool FastUploadForTestsEnabled() {
return base::CommandLine::ForCurrentProcess()->HasSwitch(
ash::switches::kInstallLogFastUploadForTests);
}
} // namespace
InstallEventLogManagerBase::LogTaskRunnerWrapper::LogTaskRunnerWrapper() =
default;
InstallEventLogManagerBase::LogTaskRunnerWrapper::~LogTaskRunnerWrapper() =
default;
scoped_refptr<base::SequencedTaskRunner>
InstallEventLogManagerBase::LogTaskRunnerWrapper::GetTaskRunner() {
if (!task_runner_) {
task_runner_ = base::ThreadPool::CreateSequencedTaskRunner(
{base::TaskShutdownBehavior::BLOCK_SHUTDOWN, base::MayBlock()});
}
return task_runner_;
}
InstallEventLogManagerBase::InstallEventLogManagerBase(
LogTaskRunnerWrapper* log_task_runner_wrapper,
Profile* profile)
: log_task_runner_(log_task_runner_wrapper->GetTaskRunner()) {}
InstallEventLogManagerBase::~InstallEventLogManagerBase() = default;
InstallEventLogManagerBase::LogUpload::LogUpload() = default;
InstallEventLogManagerBase::LogUpload::~LogUpload() = default;
void InstallEventLogManagerBase::LogUpload::OnLogInit(const LogSize& log_size) {
OnLogChange(log_size);
EnsureUpload(true /* expedited */);
}
void InstallEventLogManagerBase::LogUpload::OnLogChange(
const LogSize& log_size) {
log_size_ = log_size;
if (!log_size.total_size) {
if (upload_scheduled_) {
upload_scheduled_ = false;
expedited_upload_scheduled_ = false;
upload_weak_factory_.InvalidateWeakPtrs();
}
return;
}
if (!store_scheduled_) {
store_scheduled_ = true;
base::SequencedTaskRunner::GetCurrentDefault()->PostDelayedTask(
FROM_HERE,
base::BindOnce(&InstallEventLogManagerBase::LogUpload::StoreLog,
store_weak_factory_.GetWeakPtr()),
FastUploadForTestsEnabled() ? kFastStoreDelay : kStoreDelay);
}
EnsureUpload(log_size.total_size > kTotalSizeExpeditedUploadThreshold ||
log_size.max_size >
kMaxSizeExpeditedUploadThreshold /* expedited*/);
}
void InstallEventLogManagerBase::LogUpload::EnsureUpload(bool expedited) {
if (upload_requested_ ||
(upload_scheduled_ && (expedited_upload_scheduled_ || !expedited))) {
return;
}
if (upload_scheduled_)
upload_weak_factory_.InvalidateWeakPtrs();
upload_scheduled_ = true;
expedited_upload_scheduled_ = expedited;
base::TimeDelta upload_delay =
expedited ? kExpeditedUploadDelay : kUploadInterval;
if (FastUploadForTestsEnabled())
upload_delay = kFastUploadDelay;
base::SequencedTaskRunner::GetCurrentDefault()->PostDelayedTask(
FROM_HERE,
base::BindOnce(&InstallEventLogManagerBase::LogUpload::RequestUpload,
upload_weak_factory_.GetWeakPtr()),
upload_delay);
}
void InstallEventLogManagerBase::LogUpload::RequestUpload() {
upload_scheduled_ = false;
expedited_upload_scheduled_ = false;
if (!log_size_.total_size)
return;
upload_requested_ = true;
RequestUploadForUploader();
}
} // namespace policy
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