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// Copyright 2013 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/safe_browsing/download_protection/download_feedback_service.h"
#include <utility>
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/functional/bind.h"
#include "base/metrics/histogram_macros.h"
#include "base/numerics/safe_conversions.h"
#include "base/supports_user_data.h"
#include "base/task/task_runner.h"
#include "chrome/browser/download/download_item_model.h"
#include "chrome/browser/safe_browsing/download_protection/download_feedback.h"
#include "components/download/public/common/download_item.h"
#include "content/public/browser/browser_thread.h"
#include "services/network/public/cpp/shared_url_loader_factory.h"
namespace safe_browsing {
DownloadFeedbackService::DownloadFeedbackService(
DownloadProtectionService* download_protection_service,
base::TaskRunner* file_task_runner)
: download_protection_service_(download_protection_service),
file_task_runner_(file_task_runner) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
}
DownloadFeedbackService::~DownloadFeedbackService() {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
}
void DownloadFeedbackService::BeginFeedbackForDownload(
Profile* profile,
download::DownloadItem* download,
const std::string& ping_request,
const std::string& ping_response) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
download->CopyDownload(base::BindOnce(
&DownloadFeedbackService::BeginFeedbackOrDeleteFile, file_task_runner_,
weak_ptr_factory_.GetWeakPtr(), profile, ping_request, ping_response,
base::checked_cast<uint64_t>(download->GetReceivedBytes())));
}
// static
void DownloadFeedbackService::BeginFeedbackOrDeleteFile(
const scoped_refptr<base::TaskRunner>& file_task_runner,
const base::WeakPtr<DownloadFeedbackService>& service,
Profile* profile,
const std::string& ping_request,
const std::string& ping_response,
uint64_t file_size,
const base::FilePath& path) {
if (service) {
if (path.empty()) {
return;
}
service->BeginFeedback(profile, ping_request, ping_response, path,
file_size);
} else {
file_task_runner->PostTask(FROM_HERE, base::GetDeleteFileCallback(path));
}
}
void DownloadFeedbackService::StartPendingFeedback() {
DCHECK(!active_feedback_.empty());
active_feedback_.front()->Start(base::BindOnce(
&DownloadFeedbackService::FeedbackComplete, base::Unretained(this)));
}
void DownloadFeedbackService::BeginFeedback(Profile* profile,
const std::string& ping_request,
const std::string& ping_response,
const base::FilePath& path,
uint64_t file_size) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
std::unique_ptr<DownloadFeedback> feedback(DownloadFeedback::Create(
download_protection_service_->GetURLLoaderFactory(profile), path,
file_size, ping_request, ping_response));
active_feedback_.push(std::move(feedback));
if (active_feedback_.size() == 1) {
StartPendingFeedback();
}
}
void DownloadFeedbackService::FeedbackComplete() {
DVLOG(1) << __func__;
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
DCHECK(!active_feedback_.empty());
active_feedback_.pop();
if (!active_feedback_.empty()) {
StartPendingFeedback();
}
}
} // namespace safe_browsing
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