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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/renderer_host/file_utilities_host_impl.h"
#include <memory>
#include <optional>
#include <utility>
#include "base/files/file_util.h"
#include "content/browser/child_process_security_policy_impl.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/self_owned_receiver.h"
namespace content {
FileUtilitiesHostImpl::FileUtilitiesHostImpl(int process_id)
: process_id_(process_id) {}
FileUtilitiesHostImpl::~FileUtilitiesHostImpl() = default;
void FileUtilitiesHostImpl::Create(
int process_id,
mojo::PendingReceiver<blink::mojom::FileUtilitiesHost> receiver) {
mojo::MakeSelfOwnedReceiver(
std::make_unique<FileUtilitiesHostImpl>(process_id), std::move(receiver));
}
void FileUtilitiesHostImpl::GetFileInfo(const base::FilePath& path,
GetFileInfoCallback callback) {
// Get file metadata only when the child process has been granted
// permission to read the file.
auto* security_policy = ChildProcessSecurityPolicyImpl::GetInstance();
if (!security_policy->CanReadFile(process_id_, path)) {
std::move(callback).Run(std::nullopt);
return;
}
base::File::Info info;
if (base::GetFileInfo(path, &info)) {
std::move(callback).Run(info);
} else {
std::move(callback).Run(std::nullopt);
}
}
} // namespace content
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