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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/plugin_vm/plugin_vm_features.h"
#include "base/feature_list.h"
#include "base/system/sys_info.h"
#include "chrome/browser/ash/plugin_vm/plugin_vm_pref_names.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/common/chrome_features.h"
#include "chromeos/ash/components/install_attributes/install_attributes.h"
#include "chromeos/ash/components/settings/cros_settings.h"
#include "chromeos/ash/components/settings/cros_settings_names.h"
#include "chromeos/ash/experiences/guest_os/virtual_machines/virtual_machines_util.h"
#include "components/prefs/pref_service.h"
#include "components/user_manager/user.h"
namespace plugin_vm {
namespace {
using ProfileSupported = PluginVmFeatures::ProfileSupported;
using PolicyConfigured = PluginVmFeatures::PolicyConfigured;
ProfileSupported CheckProfileSupported(const Profile* profile) {
if (!profile) {
VLOG(1) << "profile == nullptr";
return ProfileSupported::kErrorNotSupported;
}
if (!ash::ProfileHelper::IsPrimaryProfile(profile)) {
return ProfileSupported::kErrorNonPrimary;
}
if (profile->IsChild()) {
return ProfileSupported::kErrorChildAccount;
}
if (profile->IsOffTheRecord()) {
return ProfileSupported::kErrorOffTheRecord;
}
if (ash::ProfileHelper::IsEphemeralUserProfile(profile)) {
return ProfileSupported::kErrorEphemeral;
}
if (!ash::ProfileHelper::IsUserProfile(profile)) {
VLOG(1) << "non-regular profile is not supported";
// If this happens, the profile is for something like the sign in screen or
// lock screen. Return a generic error code because the user will not be
// able to see the error code/message anyway.
return ProfileSupported::kErrorNotSupported;
}
return ProfileSupported::kOk;
}
PolicyConfigured CheckPolicyConfigured(const Profile* profile) {
// Bypass other checks when a fake policy is set, or running linux-chromeos.
if (FakeLicenseKeyIsSet() || !base::SysInfo::IsRunningOnChromeOS()) {
return PolicyConfigured::kOk;
}
if (profile == nullptr) {
VLOG(1) << "Profile is null";
return PolicyConfigured::kErrorUnableToCheckPolicy;
}
// Check that the device is enterprise enrolled.
if (!ash::InstallAttributes::Get()->IsEnterpriseManaged()) {
return PolicyConfigured::kErrorNotEnterpriseEnrolled;
}
// Check that the user is affiliated.
const user_manager::User* const user =
ash::ProfileHelper::Get()->GetUserByProfile(profile);
if (user == nullptr || !user->IsAffiliated()) {
return PolicyConfigured::kErrorUserNotAffiliated;
}
// Check that VirtualMachines are allowed by policy.
if (!virtual_machines::AreVirtualMachinesAllowedByPolicy()) {
return PolicyConfigured::kErrorVirtualMachinesNotAllowed;
}
// Check that PluginVm is allowed to run by policy.
bool plugin_vm_allowed_for_device;
if (!ash::CrosSettings::Get()->GetBoolean(ash::kPluginVmAllowed,
&plugin_vm_allowed_for_device)) {
return PolicyConfigured::kErrorUnableToCheckDevicePolicy;
}
if (!plugin_vm_allowed_for_device) {
return PolicyConfigured::kErrorNotAllowedByDevicePolicy;
}
bool plugin_vm_allowed_for_user =
profile->GetPrefs()->GetBoolean(plugin_vm::prefs::kPluginVmAllowed);
if (!plugin_vm_allowed_for_user) {
return PolicyConfigured::kErrorNotAllowedByUserPolicy;
}
if (GetPluginVmUserIdForProfile(profile).empty()) {
return PolicyConfigured::kErrorLicenseNotSetUp;
}
return PolicyConfigured::kOk;
}
} // namespace
bool PluginVmFeatures::IsAllowedDiagnostics::IsOk() const {
return device_supported && profile_supported == ProfileSupported::kOk &&
policy_configured == PolicyConfigured::kOk;
}
std::string PluginVmFeatures::IsAllowedDiagnostics::GetTopError() const {
if (!device_supported) {
return "Parallels Desktop is not supported on this device";
}
switch (profile_supported) {
case ProfileSupported::kOk:
break;
case ProfileSupported::kErrorNonPrimary:
return "Parallels Desktop is only allowed in primary user sessions";
case ProfileSupported::kErrorChildAccount:
return "Child accounts are not supported";
case ProfileSupported::kErrorOffTheRecord:
return "Guest profiles are not supported";
case ProfileSupported::kErrorEphemeral:
return "Ephemeral user profiles are not supported";
case ProfileSupported::kErrorNotSupported:
return "This user session is not allowed to run Parallels Desktop";
}
switch (policy_configured) {
case PolicyConfigured::kOk:
break;
case PolicyConfigured::kErrorUnableToCheckPolicy:
return "Unable to check policy";
case PolicyConfigured::kErrorNotEnterpriseEnrolled:
return "This is not an enterprise-managed device";
case PolicyConfigured::kErrorUserNotAffiliated:
return "This user is not affiliated with the organization";
case PolicyConfigured::kErrorUnableToCheckDevicePolicy:
return "Unable to determine if device-level policy allows running VMs";
case PolicyConfigured::kErrorNotAllowedByDevicePolicy:
return "VMs are disallowed by policy on this device";
case PolicyConfigured::kErrorNotAllowedByUserPolicy:
return "VMs are disallowed by policy";
case PolicyConfigured::kErrorLicenseNotSetUp:
return "License for the product is not set up in policy";
case PolicyConfigured::kErrorVirtualMachinesNotAllowed:
return "No Virtual Machines are allowed on this device";
}
return "";
}
static PluginVmFeatures* g_plugin_vm_features = nullptr;
PluginVmFeatures* PluginVmFeatures::Get() {
if (!g_plugin_vm_features) {
g_plugin_vm_features = new PluginVmFeatures();
}
return g_plugin_vm_features;
}
void PluginVmFeatures::SetForTesting(PluginVmFeatures* features) {
g_plugin_vm_features = features;
}
PluginVmFeatures::PluginVmFeatures() = default;
PluginVmFeatures::~PluginVmFeatures() = default;
// For PluginVm to be allowed:
// * PluginVm feature should be enabled.
// * Profile should be eligible.
// * Device should be enterprise enrolled:
// * User should be affiliated.
// * PluginVmAllowed device policy should be set to true.
// * UserPluginVmAllowed user policy should be set to true.
// * PluginVmUserId policy is set.
PluginVmFeatures::IsAllowedDiagnostics
PluginVmFeatures::GetIsAllowedDiagnostics(const Profile* profile) {
auto diagnostics = IsAllowedDiagnostics{
/*device_supported=*/base::FeatureList::IsEnabled(features::kPluginVm),
/*profile_supported=*/CheckProfileSupported(profile),
/*policy_configured=*/CheckPolicyConfigured(profile),
};
if (!diagnostics.IsOk()) {
VLOG(1) << diagnostics.GetTopError();
}
return diagnostics;
}
bool PluginVmFeatures::IsAllowed(const Profile* profile, std::string* reason) {
auto diagnostics = GetIsAllowedDiagnostics(profile);
if (!diagnostics.IsOk()) {
if (reason) {
*reason = diagnostics.GetTopError();
DCHECK(!reason->empty());
}
return false;
}
return true;
}
bool PluginVmFeatures::IsConfigured(const Profile* profile) {
return profile->GetPrefs()->GetBoolean(
plugin_vm::prefs::kPluginVmImageExists);
}
bool PluginVmFeatures::IsEnabled(const Profile* profile) {
return PluginVmFeatures::Get()->IsAllowed(profile) &&
PluginVmFeatures::Get()->IsConfigured(profile);
}
} // namespace plugin_vm
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