<?php
/**
 * Copyright (c) 2012 Lukas Reschke <lukas@statuscode.ch>
 * This file is licensed under the Affero General Public License version 3 or
 * later.
 * See the COPYING-README file.
 */

namespace Test;

use OC_Util;
use OCP\App\IAppManager;
use OCP\IConfig;
use OCP\IUser;

/**
 * Class UtilTest
 *
 * @package Test
 * @group DB
 */
class UtilTest extends \Test\TestCase {
	public function testGetVersion() {
		$version = \OCP\Util::getVersion();
		$this->assertTrue(is_array($version));
		foreach ($version as $num) {
			$this->assertTrue(is_int($num));
		}
	}

	public function testGetVersionString() {
		$version = \OC_Util::getVersionString();
		$this->assertTrue(is_string($version));
	}

	public function testGetEditionString() {
		$edition = \OC_Util::getEditionString();
		$this->assertTrue(is_string($edition));
	}

	function testSanitizeHTML() {
		$badArray = [
			'While it is unusual to pass an array',
			'this function actually <blink>supports</blink> it.',
			'And therefore there needs to be a <script>alert("Unit"+\'test\')</script> for it!',
			[
				'And It Even May <strong>Nest</strong>',
			],
		];
		$goodArray = [
			'While it is unusual to pass an array',
			'this function actually &lt;blink&gt;supports&lt;/blink&gt; it.',
			'And therefore there needs to be a &lt;script&gt;alert(&quot;Unit&quot;+&#039;test&#039;)&lt;/script&gt; for it!',
			[
				'And It Even May &lt;strong&gt;Nest&lt;/strong&gt;'
			],
		];
		$result = OC_Util::sanitizeHTML($badArray);
		$this->assertEquals($goodArray, $result);

		$badString = '<img onload="alert(1)" />';
		$result = OC_Util::sanitizeHTML($badString);
		$this->assertEquals('&lt;img onload=&quot;alert(1)&quot; /&gt;', $result);

		$badString = "<script>alert('Hacked!');</script>";
		$result = OC_Util::sanitizeHTML($badString);
		$this->assertEquals('&lt;script&gt;alert(&#039;Hacked!&#039;);&lt;/script&gt;', $result);

		$goodString = 'This is a good string without HTML.';
		$result = OC_Util::sanitizeHTML($goodString);
		$this->assertEquals('This is a good string without HTML.', $result);
	}

	function testEncodePath() {
		$component = '/§#@test%&^ä/-child';
		$result = OC_Util::encodePath($component);
		$this->assertEquals("/%C2%A7%23%40test%25%26%5E%C3%A4/-child", $result);
	}

	public function testFileInfoLoaded() {
		$expected = function_exists('finfo_open');
		$this->assertEquals($expected, \OC_Util::fileInfoLoaded());
	}

	function testGetDefaultEmailAddress() {
		$email = \OCP\Util::getDefaultEmailAddress("no-reply");
		$this->assertEquals('no-reply@localhost', $email);
	}

	function testGetDefaultEmailAddressFromConfig() {
		$config = \OC::$server->getConfig();
		$config->setSystemValue('mail_domain', 'example.com');
		$email = \OCP\Util::getDefaultEmailAddress("no-reply");
		$this->assertEquals('no-reply@example.com', $email);
		$config->deleteSystemValue('mail_domain');
	}

	function testGetConfiguredEmailAddressFromConfig() {
		$config = \OC::$server->getConfig();
		$config->setSystemValue('mail_domain', 'example.com');
		$config->setSystemValue('mail_from_address', 'owncloud');
		$email = \OCP\Util::getDefaultEmailAddress("no-reply");
		$this->assertEquals('owncloud@example.com', $email);
		$config->deleteSystemValue('mail_domain');
		$config->deleteSystemValue('mail_from_address');
	}

	function testGetInstanceIdGeneratesValidId() {
		\OC::$server->getConfig()->deleteSystemValue('instanceid');
		$instanceId = OC_Util::getInstanceId();
		$this->assertStringStartsWith('oc', $instanceId);
		$matchesRegex = preg_match('/^[a-z0-9]+$/', $instanceId);
		$this->assertSame(1, $matchesRegex);
	}

	/**
	 * @dataProvider filenameValidationProvider
	 */
	public function testFilenameValidation($file, $valid) {
		// private API
		$this->assertEquals($valid, \OC_Util::isValidFileName($file));
		// public API
		$this->assertEquals($valid, \OCP\Util::isValidFileName($file));
	}

	public function filenameValidationProvider() {
		return [
			// valid names
			['boringname', true],
			['something.with.extension', true],
			['now with spaces', true],
			['.a', true],
			['..a', true],
			['.dotfile', true],
			['single\'quote', true],
			['  spaces before', true],
			['spaces after   ', true],
			['allowed chars including the crazy ones $%&_-^@!,()[]{}=;#', true],
			['汉字也能用', true],
			['und Ümläüte sind auch willkommen', true],
			// disallowed names
			['', false],
			['     ', false],
			['.', false],
			['..', false],
			['back\\slash', false],
			['sl/ash', false],
			['lt<lt', true],
			['gt>gt', true],
			['col:on', true],
			['double"quote', true],
			['pi|pe', true],
			['dont?ask?questions?', true],
			['super*star', true],
			['new\nline', false],

			// better disallow these to avoid unexpected trimming to have side effects
			[' ..', false],
			['.. ', false],
			['. ', false],
			[' .', false],

			// part files not allowed
			['.part', false],
			['notallowed.part', false],
			['neither.filepart', false],

			// part in the middle is ok
			['super movie part one.mkv', true],
			['super.movie.part.mkv', true],
		];
	}

	/**
	 * @dataProvider dataProviderForTestIsSharingDisabledForUser
	 * @param array $groups existing groups
	 * @param array $membership groups the user belong to
	 * @param array $excludedGroups groups which should be excluded from sharing
	 * @param bool $expected expected result
	 */
	function testIsSharingDisabledForUser($groups, $membership, $excludedGroups, $expected) {
		$config = $this->getMockBuilder(IConfig::class)->disableOriginalConstructor()->getMock();
		$groupManager = $this->getMockBuilder('OCP\IGroupManager')->disableOriginalConstructor()->getMock();
		$user = $this->getMockBuilder(IUser::class)->disableOriginalConstructor()->getMock();

		$config
				->expects($this->at(0))
				->method('getAppValue')
				->with('core', 'shareapi_exclude_groups', 'no')
				->will($this->returnValue('yes'));
		$config
				->expects($this->at(1))
				->method('getAppValue')
				->with('core', 'shareapi_exclude_groups_list')
				->will($this->returnValue(json_encode($excludedGroups)));

		$groupManager
				->expects($this->at(0))
				->method('getUserGroupIds')
				->with($user)
				->will($this->returnValue($membership));

		$result = \OC_Util::isSharingDisabledForUser($config, $groupManager, $user);

		$this->assertSame($expected, $result);
	}

	public function dataProviderForTestIsSharingDisabledForUser() {
		return array(
			// existing groups, groups the user belong to, groups excluded from sharing, expected result
			array(array('g1', 'g2', 'g3'), array(), array('g1'), false),
			array(array('g1', 'g2', 'g3'), array(), array(), false),
			array(array('g1', 'g2', 'g3'), array('g2'), array('g1'), false),
			array(array('g1', 'g2', 'g3'), array('g2'), array(), false),
			array(array('g1', 'g2', 'g3'), array('g1', 'g2'), array('g1'), false),
			array(array('g1', 'g2', 'g3'), array('g1', 'g2'), array('g1', 'g2'), true),
			array(array('g1', 'g2', 'g3'), array('g1', 'g2'), array('g1', 'g2', 'g3'), true),
		);
	}

	/**
	 * Test default apps
	 *
	 * @dataProvider defaultAppsProvider
	 * @group DB
	 */
	function testDefaultApps($defaultAppConfig, $expectedPath, $enabledApps) {
		$oldDefaultApps = \OC::$server->getConfig()->getSystemValue('defaultapp', '');
		// CLI is doing messy stuff with the webroot, so need to work it around
		$oldWebRoot = \OC::$WEBROOT;
		\OC::$WEBROOT = '';

		$appManager = $this->createMock(IAppManager::class);
		$appManager->expects($this->any())
			->method('isEnabledForUser')
			->will($this->returnCallback(function($appId) use ($enabledApps){
				return in_array($appId, $enabledApps);
		}));
		Dummy_OC_Util::$appManager = $appManager;

		// need to set a user id to make sure enabled apps are read from cache
		\OC_User::setUserId($this->getUniqueID());
		\OC::$server->getConfig()->setSystemValue('defaultapp', $defaultAppConfig);
		$this->assertEquals('http://localhost/' . $expectedPath, Dummy_OC_Util::getDefaultPageUrl());

		// restore old state
		\OC::$WEBROOT = $oldWebRoot;
		\OC::$server->getConfig()->setSystemValue('defaultapp', $oldDefaultApps);
		\OC_User::setUserId(null);
	}

	function defaultAppsProvider() {
		return array(
			// none specified, default to files
			array(
				'',
				'index.php/apps/files/',
				array('files'),
			),
			// unexisting or inaccessible app specified, default to files
			array(
				'unexist',
				'index.php/apps/files/',
				array('files'),
			),
			// non-standard app
			array(
				'calendar',
				'index.php/apps/calendar/',
				array('files', 'calendar'),
			),
			// non-standard app with fallback
			array(
				'contacts,calendar',
				'index.php/apps/calendar/',
				array('files', 'calendar'),
			),
		);
	}

	public function testGetDefaultPageUrlWithRedirectUrlWithoutFrontController() {
		putenv('front_controller_active=false');
		\OC::$server->getConfig()->deleteSystemValue('htaccess.IgnoreFrontController');

		$_REQUEST['redirect_url'] = 'myRedirectUrl.com';
		$this->assertSame('http://localhost'.\OC::$WEBROOT.'/myRedirectUrl.com', OC_Util::getDefaultPageUrl());
	}

	public function testGetDefaultPageUrlWithRedirectUrlRedirectBypassWithoutFrontController() {
		putenv('front_controller_active=false');
		\OC::$server->getConfig()->deleteSystemValue('htaccess.IgnoreFrontController');

		$_REQUEST['redirect_url'] = 'myRedirectUrl.com@foo.com:a';
		$this->assertSame('http://localhost'.\OC::$WEBROOT.'/index.php/apps/files/', OC_Util::getDefaultPageUrl());
	}

	public function testGetDefaultPageUrlWithRedirectUrlRedirectBypassWithFrontController() {
		putenv('front_controller_active=true');
		$_REQUEST['redirect_url'] = 'myRedirectUrl.com@foo.com:a';
		$this->assertSame('http://localhost'.\OC::$WEBROOT.'/apps/files/', OC_Util::getDefaultPageUrl());
	}

	public function testGetDefaultPageUrlWithRedirectUrlWithIgnoreFrontController() {
		putenv('front_controller_active=false');
		\OC::$server->getConfig()->setSystemValue('htaccess.IgnoreFrontController', true);

		$_REQUEST['redirect_url'] = 'myRedirectUrl.com@foo.com:a';
		$this->assertSame('http://localhost'.\OC::$WEBROOT.'/apps/files/', OC_Util::getDefaultPageUrl());
	}

	/**
	 * Test needUpgrade() when the core version is increased
	 */
	public function testNeedUpgradeCore() {
		$config = \OC::$server->getConfig();
		$oldConfigVersion = $config->getSystemValue('version', '0.0.0');
		$oldSessionVersion = \OC::$server->getSession()->get('OC_Version');

		$this->assertFalse(\OCP\Util::needUpgrade());

		$config->setSystemValue('version', '7.0.0.0');
		\OC::$server->getSession()->set('OC_Version', array(7, 0, 0, 1));
		self::invokePrivate(new \OCP\Util, 'needUpgradeCache', array(null));

		$this->assertTrue(\OCP\Util::needUpgrade());

		$config->setSystemValue('version', $oldConfigVersion);
		\OC::$server->getSession()->set('OC_Version', $oldSessionVersion);
		self::invokePrivate(new \OCP\Util, 'needUpgradeCache', array(null));

		$this->assertFalse(\OCP\Util::needUpgrade());
	}

	public function testCheckDataDirectoryValidity() {
		$dataDir = \OC::$server->getTempManager()->getTemporaryFolder();
		touch($dataDir . '/.ocdata');
		$errors = \OC_Util::checkDataDirectoryValidity($dataDir);
		$this->assertEmpty($errors);
		\OCP\Files::rmdirr($dataDir);

		$dataDir = \OC::$server->getTempManager()->getTemporaryFolder();
		// no touch
		$errors = \OC_Util::checkDataDirectoryValidity($dataDir);
		$this->assertNotEmpty($errors);
		\OCP\Files::rmdirr($dataDir);

		$errors = \OC_Util::checkDataDirectoryValidity('relative/path');
		$this->assertNotEmpty($errors);
	}

	protected function setUp() {
		parent::setUp();

		\OC_Util::$scripts = [];
		\OC_Util::$styles = [];
	}
	protected function tearDown() {
		parent::tearDown();

		\OC_Util::$scripts = [];
		\OC_Util::$styles = [];
	}

	public function testAddScript() {
		\OC_Util::addScript('core', 'myFancyJSFile1');
		\OC_Util::addScript('myApp', 'myFancyJSFile2');
		\OC_Util::addScript('core', 'myFancyJSFile0', true);
		\OC_Util::addScript('core', 'myFancyJSFile10', true);
		// add duplicate
		\OC_Util::addScript('core', 'myFancyJSFile1');

		$this->assertEquals([
			'core/js/myFancyJSFile10',
			'core/js/myFancyJSFile0',
			'core/js/myFancyJSFile1',
			'myApp/l10n/en',
			'myApp/js/myFancyJSFile2',
		], \OC_Util::$scripts);
		$this->assertEquals([], \OC_Util::$styles);
	}

	public function testAddVendorScript() {
		\OC_Util::addVendorScript('core', 'myFancyJSFile1');
		\OC_Util::addVendorScript('myApp', 'myFancyJSFile2');
		\OC_Util::addVendorScript('core', 'myFancyJSFile0', true);
		\OC_Util::addVendorScript('core', 'myFancyJSFile10', true);
		// add duplicate
		\OC_Util::addVendorScript('core', 'myFancyJSFile1');

		$this->assertEquals([
			'core/vendor/myFancyJSFile10',
			'core/vendor/myFancyJSFile0',
			'core/vendor/myFancyJSFile1',
			'myApp/vendor/myFancyJSFile2',
		], \OC_Util::$scripts);
		$this->assertEquals([], \OC_Util::$styles);
	}

	public function testAddTranslations() {
		\OC_Util::addTranslations('appId', 'de');

		$this->assertEquals([
			'appId/l10n/de'
		], \OC_Util::$scripts);
		$this->assertEquals([], \OC_Util::$styles);
	}

	public function testAddStyle() {
		\OC_Util::addStyle('core', 'myFancyCSSFile1');
		\OC_Util::addStyle('myApp', 'myFancyCSSFile2');
		\OC_Util::addStyle('core', 'myFancyCSSFile0', true);
		\OC_Util::addStyle('core', 'myFancyCSSFile10', true);
		// add duplicate
		\OC_Util::addStyle('core', 'myFancyCSSFile1');

		$this->assertEquals([], \OC_Util::$scripts);
		$this->assertEquals([
			'core/css/myFancyCSSFile10',
			'core/css/myFancyCSSFile0',
			'core/css/myFancyCSSFile1',
			'myApp/css/myFancyCSSFile2',
		], \OC_Util::$styles);
	}

	public function testAddVendorStyle() {
		\OC_Util::addVendorStyle('core', 'myFancyCSSFile1');
		\OC_Util::addVendorStyle('myApp', 'myFancyCSSFile2');
		\OC_Util::addVendorStyle('core', 'myFancyCSSFile0', true);
		\OC_Util::addVendorStyle('core', 'myFancyCSSFile10', true);
		// add duplicate
		\OC_Util::addVendorStyle('core', 'myFancyCSSFile1');

		$this->assertEquals([], \OC_Util::$scripts);
		$this->assertEquals([
			'core/vendor/myFancyCSSFile10',
			'core/vendor/myFancyCSSFile0',
			'core/vendor/myFancyCSSFile1',
			'myApp/vendor/myFancyCSSFile2',
		], \OC_Util::$styles);
	}
}

/**
 * Dummy OC Util class to make it possible to override the app manager
 */
class Dummy_OC_Util extends OC_Util {
	/**
	 * @var \OCP\App\IAppManager
	 */
	public static $appManager;

	protected static function getAppManager() {
		return self::$appManager;
	}
}
