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// Copyright 2019 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/plugin_vm/plugin_vm_files.h"
#include <algorithm>
#include <utility>
#include <variant>
#include "ash/public/cpp/shelf_model.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/location.h"
#include "base/strings/string_util.h"
#include "base/task/task_traits.h"
#include "base/task/thread_pool.h"
#include "chrome/browser/ash/file_manager/path_util.h"
#include "chrome/browser/ash/guest_os/guest_os_registry_service.h"
#include "chrome/browser/ash/guest_os/guest_os_registry_service_factory.h"
#include "chrome/browser/ash/guest_os/guest_os_share_path.h"
#include "chrome/browser/ash/guest_os/guest_os_share_path_factory.h"
#include "chrome/browser/ash/plugin_vm/plugin_vm_features.h"
#include "chrome/browser/ash/plugin_vm/plugin_vm_manager.h"
#include "chrome/browser/ash/plugin_vm/plugin_vm_manager_factory.h"
#include "chrome/browser/ash/plugin_vm/plugin_vm_util.h"
#include "chrome/browser/ash/profiles/profile_helper.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/ash/shelf/app_window_base.h"
#include "chrome/browser/ui/ash/shelf/app_window_shelf_item_controller.h"
#include "chrome/browser/ui/ash/shelf/chrome_shelf_controller.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_task_traits.h"
#include "content/public/browser/browser_thread.h"
namespace plugin_vm {
namespace {
void DirExistsResult(
const base::FilePath& dir,
bool result,
base::OnceCallback<void(const base::FilePath&, bool)> callback) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
std::move(callback).Run(dir, result);
}
void EnsureDirExists(
base::FilePath dir,
base::OnceCallback<void(const base::FilePath&, bool)> callback) {
base::File::Error error = base::File::FILE_OK;
bool result = base::CreateDirectoryAndGetError(dir, &error);
if (!result) {
LOG(ERROR) << "Failed to create PluginVm shared dir " << dir.value() << ": "
<< base::File::ErrorToString(error);
}
content::GetUIThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&DirExistsResult, dir, result, std::move(callback)));
}
base::FilePath GetDefaultSharedDir(Profile* profile) {
return file_manager::util::GetMyFilesFolderForProfile(profile).Append(
kPluginVmName);
}
void FocusAllPluginVmWindows() {
ash::ShelfModel* shelf_model =
ChromeShelfController::instance()->shelf_model();
DCHECK(shelf_model);
AppWindowShelfItemController* item_controller =
shelf_model->GetAppWindowShelfItemController(
ash::ShelfID(kPluginVmShelfAppId));
if (!item_controller) {
return;
}
for (AppWindowBase* app_window : item_controller->windows()) {
app_window->Activate();
}
}
// LaunchPluginVmApp will run before this and try to start Plugin VM.
void LaunchPluginVmAppImpl(Profile* profile,
std::string app_id,
std::vector<std::string> file_paths,
LaunchPluginVmAppCallback callback,
bool plugin_vm_is_running) {
if (!plugin_vm_is_running) {
return std::move(callback).Run(LaunchPluginVmAppResult::FAILED,
"Plugin VM could not be started");
}
auto* registry_service =
guest_os::GuestOsRegistryServiceFactory::GetForProfile(profile);
auto registration = registry_service->GetRegistration(app_id);
if (!registration) {
return std::move(callback).Run(
LaunchPluginVmAppResult::FAILED,
"LaunchPluginVmApp called with an unknown app_id: " + app_id);
}
vm_tools::cicerone::LaunchContainerApplicationRequest request;
request.set_owner_id(ash::ProfileHelper::GetUserIdHashFromProfile(profile));
request.set_vm_name(registration->VmName());
request.set_container_name(registration->ContainerName());
request.set_desktop_file_id(registration->DesktopFileId());
std::ranges::move(file_paths, google::protobuf::RepeatedFieldBackInserter(
request.mutable_files()));
ash::CiceroneClient::Get()->LaunchContainerApplication(
std::move(request),
base::BindOnce(
[](const std::string& app_id, LaunchPluginVmAppCallback callback,
std::optional<
vm_tools::cicerone::LaunchContainerApplicationResponse>
response) {
if (!response || !response->success()) {
LOG(ERROR) << "Failed to launch application. "
<< (response ? response->failure_reason()
: "Empty response.");
std::move(callback).Run(LaunchPluginVmAppResult::FAILED,
"Failed to launch " + app_id);
return;
}
FocusAllPluginVmWindows();
std::move(callback).Run(LaunchPluginVmAppResult::SUCCESS, "");
},
std::move(app_id), std::move(callback)));
}
} // namespace
base::FilePath ChromeOSBaseDirectory() {
// Forward slashes are converted to backslash during path conversion.
return base::FilePath("//ChromeOS");
}
void EnsureDefaultSharedDirExists(
Profile* profile,
base::OnceCallback<void(const base::FilePath&, bool)> callback) {
base::ThreadPool::PostTask(
FROM_HERE, {base::MayBlock()},
base::BindOnce(&EnsureDirExists, GetDefaultSharedDir(profile),
std::move(callback)));
}
void LaunchPluginVmApp(Profile* profile,
std::string app_id,
const std::vector<guest_os::LaunchArg>& args,
LaunchPluginVmAppCallback callback) {
if (!plugin_vm::PluginVmFeatures::Get()->IsEnabled(profile)) {
return std::move(callback).Run(LaunchPluginVmAppResult::FAILED,
"Plugin VM is not enabled for this profile");
}
auto* manager = PluginVmManagerFactory::GetForProfile(profile);
if (!manager) {
return std::move(callback).Run(LaunchPluginVmAppResult::FAILED,
"Could not get PluginVmManager");
}
auto* share_path = guest_os::GuestOsSharePathFactory::GetForProfile(profile);
base::FilePath vm_mount = ChromeOSBaseDirectory();
std::vector<std::string> launch_args;
launch_args.reserve(args.size());
for (const auto& arg : args) {
if (std::holds_alternative<std::string>(arg)) {
launch_args.push_back(std::get<std::string>(arg));
continue;
}
const storage::FileSystemURL& url = std::get<storage::FileSystemURL>(arg);
base::FilePath file_path;
// Validate paths in MyFiles/PvmDefault, or are already shared, and convert.
bool shared = GetDefaultSharedDir(profile).IsParent(url.path()) ||
share_path->IsPathShared(kPluginVmName, url.path());
if (!shared ||
!file_manager::util::ConvertFileSystemURLToPathInsideVM(
profile, url, vm_mount, /*map_crostini_home=*/false, &file_path)) {
return std::move(callback).Run(
LaunchPluginVmAppResult::FAILED_DIRECTORY_NOT_SHARED,
"Only files in shared dirs are supported. Got: " + url.DebugString());
}
// Convert slashes: '/' => '\'.
std::string result;
base::ReplaceChars(file_path.value(), "/", "\\", &result);
launch_args.push_back(std::move(result));
}
manager->LaunchPluginVm(
base::BindOnce(&LaunchPluginVmAppImpl, profile, std::move(app_id),
std::move(launch_args), std::move(callback)));
}
} // namespace plugin_vm
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