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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/run_loop.h"
#include "base/strings/utf_string_conversions.h"
#include "base/test/values_test_util.h"
#include "chrome/browser/extensions/test_extension_environment.h"
#include "chrome/test/base/testing_profile.h"
#include "device/core/device_client.h"
#include "device/usb/usb_device.h"
#include "device/usb/usb_device_handle.h"
#include "extensions/browser/api/device_permissions_manager.h"
#include "extensions/browser/extension_prefs.h"
#include "extensions/common/extension.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace extensions {
namespace {
using device::UsbDevice;
using device::UsbDeviceHandle;
using device::UsbService;
using testing::_;
using testing::DoAll;
using testing::Return;
using testing::SetArgPointee;
int next_id;
class MockDeviceClient : device::DeviceClient {
public:
MockDeviceClient() {}
// device::DeviceClient implementation:
UsbService* GetUsbService() override {
DCHECK(usb_service_);
return usb_service_;
}
void set_usb_service(UsbService* service) { usb_service_ = service; }
private:
UsbService* usb_service_ = nullptr;
};
class MockUsbService : public UsbService {
public:
MockUsbService() {}
MOCK_METHOD1(GetDeviceById, scoped_refptr<UsbDevice>(uint32));
MOCK_METHOD1(GetDevices, void(const GetDevicesCallback& callback));
// Public wrapper for the protected NotifyDeviceRemove function.
void NotifyDeviceRemoved(scoped_refptr<UsbDevice> device) {
UsbService::NotifyDeviceRemoved(device);
}
};
class MockUsbDevice : public UsbDevice {
public:
explicit MockUsbDevice(const std::string& serial_number)
: UsbDevice(0,
0,
next_id++,
base::ASCIIToUTF16("Test Manufacturer"),
base::ASCIIToUTF16("Test Product"),
base::ASCIIToUTF16(serial_number)) {}
MOCK_METHOD1(Open, void(const OpenCallback&));
MOCK_METHOD1(Close, bool(scoped_refptr<UsbDeviceHandle>));
MOCK_METHOD0(GetConfiguration, const device::UsbConfigDescriptor*());
private:
virtual ~MockUsbDevice() {}
};
} // namespace
class DevicePermissionsManagerTest : public testing::Test {
protected:
void SetUp() override {
testing::Test::SetUp();
env_.reset(new extensions::TestExtensionEnvironment());
env_->GetExtensionPrefs(); // Force creation before adding extensions.
extension_ =
env_->MakeExtension(*base::test::ParseJson(
"{"
" \"app\": {"
" \"background\": {"
" \"scripts\": [\"background.js\"]"
" }"
" },"
" \"permissions\": ["
" \"usb\""
" ]"
"}"));
device0_ = new MockUsbDevice("ABCDE");
device1_ = new MockUsbDevice("");
device2_ = new MockUsbDevice("12345");
device3_ = new MockUsbDevice("");
mock_device_client_.set_usb_service(&usb_service_);
}
void TearDown() override { env_.reset(nullptr); }
scoped_ptr<extensions::TestExtensionEnvironment> env_;
const extensions::Extension* extension_;
MockDeviceClient mock_device_client_;
MockUsbService usb_service_;
scoped_refptr<MockUsbDevice> device0_;
scoped_refptr<MockUsbDevice> device1_;
scoped_refptr<MockUsbDevice> device2_;
scoped_refptr<MockUsbDevice> device3_;
};
TEST_F(DevicePermissionsManagerTest, AllowAndClearDevices) {
DevicePermissionsManager* manager =
DevicePermissionsManager::Get(env_->profile());
manager->AllowUsbDevice(extension_->id(), device0_);
manager->AllowUsbDevice(extension_->id(), device1_);
DevicePermissions* device_permissions =
manager->GetForExtension(extension_->id());
scoped_refptr<DevicePermissionEntry> device0_entry =
device_permissions->FindEntry(device0_);
ASSERT_TRUE(device0_entry.get());
scoped_refptr<DevicePermissionEntry> device1_entry =
device_permissions->FindEntry(device1_);
ASSERT_TRUE(device1_entry.get());
ASSERT_FALSE(device_permissions->FindEntry(device2_).get());
ASSERT_FALSE(device_permissions->FindEntry(device3_).get());
ASSERT_EQ(2U, device_permissions->entries().size());
ASSERT_EQ(base::ASCIIToUTF16(
"Test Product from Test Manufacturer (serial number ABCDE)"),
device0_entry->GetPermissionMessageString());
ASSERT_EQ(base::ASCIIToUTF16("Test Product from Test Manufacturer"),
device1_entry->GetPermissionMessageString());
manager->Clear(extension_->id());
// The device_permissions object is deleted by Clear.
device_permissions = manager->GetForExtension(extension_->id());
ASSERT_FALSE(device_permissions->FindEntry(device0_).get());
ASSERT_FALSE(device_permissions->FindEntry(device1_).get());
ASSERT_FALSE(device_permissions->FindEntry(device2_).get());
ASSERT_FALSE(device_permissions->FindEntry(device3_).get());
ASSERT_EQ(0U, device_permissions->entries().size());
// After clearing device it should be possible to grant permission again.
manager->AllowUsbDevice(extension_->id(), device0_);
manager->AllowUsbDevice(extension_->id(), device1_);
ASSERT_TRUE(device_permissions->FindEntry(device0_).get());
ASSERT_TRUE(device_permissions->FindEntry(device1_).get());
ASSERT_FALSE(device_permissions->FindEntry(device2_).get());
ASSERT_FALSE(device_permissions->FindEntry(device3_).get());
}
TEST_F(DevicePermissionsManagerTest, SuspendExtension) {
DevicePermissionsManager* manager =
DevicePermissionsManager::Get(env_->profile());
manager->AllowUsbDevice(extension_->id(), device0_);
manager->AllowUsbDevice(extension_->id(), device1_);
DevicePermissions* device_permissions =
manager->GetForExtension(extension_->id());
ASSERT_TRUE(device_permissions->FindEntry(device0_).get());
ASSERT_TRUE(device_permissions->FindEntry(device1_).get());
ASSERT_FALSE(device_permissions->FindEntry(device2_).get());
ASSERT_FALSE(device_permissions->FindEntry(device3_).get());
manager->OnBackgroundHostClose(extension_->id());
// Device 0 is still registered because its serial number has been stored in
// ExtensionPrefs, it is "persistent".
ASSERT_TRUE(device_permissions->FindEntry(device0_).get());
// Device 1 does not have uniquely identifying traits and so permission to
// open it has been dropped when the app's windows have closed and the
// background page has been suspended.
ASSERT_FALSE(device_permissions->FindEntry(device1_).get());
ASSERT_FALSE(device_permissions->FindEntry(device2_).get());
ASSERT_FALSE(device_permissions->FindEntry(device3_).get());
}
TEST_F(DevicePermissionsManagerTest, DisconnectDevice) {
DevicePermissionsManager* manager =
DevicePermissionsManager::Get(env_->profile());
manager->AllowUsbDevice(extension_->id(), device0_);
manager->AllowUsbDevice(extension_->id(), device1_);
DevicePermissions* device_permissions =
manager->GetForExtension(extension_->id());
ASSERT_TRUE(device_permissions->FindEntry(device0_).get());
ASSERT_TRUE(device_permissions->FindEntry(device1_).get());
ASSERT_FALSE(device_permissions->FindEntry(device2_).get());
ASSERT_FALSE(device_permissions->FindEntry(device3_).get());
usb_service_.NotifyDeviceRemoved(device0_);
usb_service_.NotifyDeviceRemoved(device1_);
// Device 0 will be accessible when it is reconnected because it can be
// recognized by its serial number.
ASSERT_TRUE(device_permissions->FindEntry(device0_).get());
// Device 1 does not have a serial number and cannot be distinguished from
// any other device of the same model so the app must request permission again
// when it is reconnected.
ASSERT_FALSE(device_permissions->FindEntry(device1_).get());
ASSERT_FALSE(device_permissions->FindEntry(device2_).get());
ASSERT_FALSE(device_permissions->FindEntry(device3_).get());
}
TEST_F(DevicePermissionsManagerTest, RevokeAndRegrantAccess) {
DevicePermissionsManager* manager =
DevicePermissionsManager::Get(env_->profile());
manager->AllowUsbDevice(extension_->id(), device0_);
manager->AllowUsbDevice(extension_->id(), device1_);
DevicePermissions* device_permissions =
manager->GetForExtension(extension_->id());
scoped_refptr<DevicePermissionEntry> device0_entry =
device_permissions->FindEntry(device0_);
ASSERT_TRUE(device0_entry.get());
scoped_refptr<DevicePermissionEntry> device1_entry =
device_permissions->FindEntry(device1_);
ASSERT_TRUE(device1_entry.get());
manager->RemoveEntry(extension_->id(), device0_entry);
ASSERT_FALSE(device_permissions->FindEntry(device0_).get());
ASSERT_TRUE(device_permissions->FindEntry(device1_).get());
manager->AllowUsbDevice(extension_->id(), device0_);
ASSERT_TRUE(device_permissions->FindEntry(device0_).get());
ASSERT_TRUE(device_permissions->FindEntry(device1_).get());
manager->RemoveEntry(extension_->id(), device1_entry);
ASSERT_TRUE(device_permissions->FindEntry(device0_).get());
ASSERT_FALSE(device_permissions->FindEntry(device1_).get());
manager->AllowUsbDevice(extension_->id(), device1_);
ASSERT_TRUE(device_permissions->FindEntry(device0_).get());
ASSERT_TRUE(device_permissions->FindEntry(device1_).get());
}
TEST_F(DevicePermissionsManagerTest, UpdateLastUsed) {
DevicePermissionsManager* manager =
DevicePermissionsManager::Get(env_->profile());
manager->AllowUsbDevice(extension_->id(), device0_);
DevicePermissions* device_permissions =
manager->GetForExtension(extension_->id());
scoped_refptr<DevicePermissionEntry> device0_entry =
device_permissions->FindEntry(device0_);
ASSERT_TRUE(device0_entry->last_used().is_null());
manager->UpdateLastUsed(extension_->id(), device0_entry);
device0_entry = device_permissions->FindEntry(device0_);
ASSERT_FALSE(device0_entry->last_used().is_null());
}
TEST_F(DevicePermissionsManagerTest, LoadPrefs) {
scoped_ptr<base::Value> prefs_value = base::test::ParseJson(
"["
" {"
" \"product_id\": 0,"
" \"serial_number\": \"ABCDE\","
" \"type\": \"usb\","
" \"vendor_id\": 0"
" }"
"]");
env_->GetExtensionPrefs()->UpdateExtensionPref(extension_->id(), "devices",
prefs_value.release());
DevicePermissionsManager* manager =
DevicePermissionsManager::Get(env_->profile());
DevicePermissions* device_permissions =
manager->GetForExtension(extension_->id());
ASSERT_TRUE(device_permissions->FindEntry(device0_).get());
ASSERT_FALSE(device_permissions->FindEntry(device1_).get());
ASSERT_FALSE(device_permissions->FindEntry(device2_).get());
ASSERT_FALSE(device_permissions->FindEntry(device3_).get());
}
} // namespace extensions
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