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// Copyright 2022 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/guest_os/guest_os_file_watcher.h"
#include "base/logging.h"
#include "chromeos/ash/components/dbus/cicerone/cicerone_client.h"
#include "chromeos/ash/components/dbus/cicerone/cicerone_service.pb.h"
#include "content/public/browser/browser_thread.h"
namespace guest_os {
GuestOsFileWatcher::GuestOsFileWatcher(std::string owner_id,
GuestId guest_id,
base::FilePath mount_path,
base::FilePath path)
: owner_id_(std::move(owner_id)),
guest_id_(std::move(guest_id)),
mount_path_(std::move(mount_path)),
path_(std::move(path)) {}
GuestOsFileWatcher::~GuestOsFileWatcher() {
if (!file_watcher_callback_) {
return;
}
vm_tools::cicerone::RemoveFileWatchRequest req;
req.set_owner_id(owner_id_);
req.set_vm_name(guest_id_.vm_name);
req.set_container_name(guest_id_.container_name);
req.set_path(path_.value());
auto* client = ash::CiceroneClient::Get();
client->RemoveObserver(this);
client->RemoveFileWatch(req, base::DoNothing());
}
void GuestOsFileWatcher::Watch(
base::FilePathWatcher::Callback file_watcher_callback,
file_manager::FileWatcher::BoolCallback callback) {
auto* client = ash::CiceroneClient::Get();
DCHECK(!file_watcher_callback_);
file_watcher_callback_ = std::move(file_watcher_callback);
vm_tools::cicerone::AddFileWatchRequest req;
req.set_owner_id(owner_id_);
req.set_vm_name(guest_id_.vm_name);
req.set_container_name(guest_id_.container_name);
req.set_path(path_.value());
client->AddObserver(this);
client->AddFileWatch(
req,
base::BindOnce(
[](file_manager::FileWatcher::BoolCallback callback,
std::optional<vm_tools::cicerone::AddFileWatchResponse> response) {
if (!response ||
response->status() !=
vm_tools::cicerone::AddFileWatchResponse::SUCCEEDED) {
LOG(ERROR) << "Error adding file watch: "
<< (response ? response->failure_reason()
: "empty response");
std::move(callback).Run(false);
return;
}
std::move(callback).Run(true);
},
std::move(callback)));
}
void GuestOsFileWatcher::OnFileWatchTriggered(
const vm_tools::cicerone::FileWatchTriggeredSignal& signal) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
if (signal.owner_id() != owner_id_ || signal.vm_name() != guest_id_.vm_name ||
signal.container_name() != guest_id_.container_name) {
return;
}
DCHECK(file_watcher_callback_);
file_watcher_callback_.Run(mount_path_.Append(signal.path()),
/*error=*/false);
}
} // namespace guest_os
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