<?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;

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));
	}

	/**
	 * @group DB
	 */
	function testFormatDate() {
		date_default_timezone_set("UTC");

		$result = OC_Util::formatDate(1350129205);
		$expected = 'October 13, 2012 at 11:53:25 AM GMT+0';
		$this->assertEquals($expected, $result);

		$result = OC_Util::formatDate(1102831200, true);
		$expected = 'December 12, 2004';
		$this->assertEquals($expected, $result);
	}

	/**
	 * @group DB
	 */
	function testFormatDateWithTZ() {
		date_default_timezone_set("UTC");

		$result = OC_Util::formatDate(1350129205, false, 'Europe/Berlin');
		$expected = 'October 13, 2012 at 1:53:25 PM GMT+2';
		$this->assertEquals($expected, $result);
	}

	/**
	 * @expectedException \Exception
	 */
	function testFormatDateWithInvalidTZ() {
		OC_Util::formatDate(1350129205, false, 'Mordor/Barad-dûr');
	}

	public function formatDateWithTZFromSessionData() {
		return array(
			array(3, 'October 13, 2012 at 2:53:25 PM GMT+3', 'Etc/GMT-3'),
			array(15, 'October 13, 2012 at 11:53:25 AM GMT+0', 'UTC'),
			array(-13, 'October 13, 2012 at 11:53:25 AM GMT+0', 'UTC'),
			array(9.5, 'October 13, 2012 at 9:23:25 PM GMT+9:30', 'Australia/Darwin'),
			array(-4.5, 'October 13, 2012 at 7:23:25 AM GMT-4:30', 'America/Caracas'),
			array(15.5, 'October 13, 2012 at 11:53:25 AM GMT+0', 'UTC'),
		);
	}

	/**
	 * @dataProvider formatDateWithTZFromSessionData
	 * @group DB
	 */
	function testFormatDateWithTZFromSession($offset, $expected, $expectedTimeZone) {
		date_default_timezone_set("UTC");

		\OC::$server->getSession()->set('timezone', $offset);

		$selectedTimeZone = \OC::$server->getDateTimeZone()->getTimeZone(1350129205);
		$this->assertEquals($expectedTimeZone, $selectedTimeZone->getName());
		$newDateTimeFormatter = new \OC\DateTimeFormatter($selectedTimeZone, new \OC_L10N('lib', 'en'));
		$this->overwriteService('DateTimeFormatter', $newDateTimeFormatter);

		$result = OC_Util::formatDate(1350129205, false);
		$this->assertEquals($expected, $result);

		$this->restoreService('DateTimeFormatter');
	}

	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 baseNameProvider
	 */
	public function testBaseName($expected, $file) {
		$base = \OC_Util::basename($file);
		$this->assertEquals($expected, $base);
	}

	public function baseNameProvider() {
		return array(
			array('public_html', '/home/user/public_html/'),
			array('public_html', '/home/user/public_html'),
			array('', '/'),
			array('public_html', 'public_html'),
			array('442aa682de2a64db1e010f50e60fd9c9', 'local::C:\Users\ADMINI~1\AppData\Local\Temp\2/442aa682de2a64db1e010f50e60fd9c9/')
		);
	}

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

	/**
	 * @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('OCP\IConfig')->disableOriginalConstructor()->getMock();
		$groupManager = $this->getMockBuilder('OCP\IGroupManager')->disableOriginalConstructor()->getMock();
		$user = $this->getMockBuilder('OCP\IUser')->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 = \OCP\Config::getSystemValue('defaultapp', '');
		// CLI is doing messy stuff with the webroot, so need to work it around
		$oldWebRoot = \OC::$WEBROOT;
		\OC::$WEBROOT = '';

		$appManager = $this->getMock('\OCP\App\IAppManager');
		$appManager->expects($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());
		\OCP\Config::setSystemValue('defaultapp', $defaultAppConfig);
		$this->assertEquals('http://localhost/' . $expectedPath, Dummy_OC_Util::getDefaultPageUrl());

		// restore old state
		\OC::$WEBROOT = $oldWebRoot;
		\OCP\Config::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');

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

	public function testGetDefaultPageUrlWithRedirectUrlRedirectBypassWithoutFrontController() {
		putenv('front_controller_active=false');

		$_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());
	}

	/**
	 * 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() {
		$dataDir = \OCP\Files::tmpFolder();
		touch($dataDir . '/.ocdata');
		$errors = \OC_Util::checkDataDirectoryValidity($dataDir);
		$this->assertEmpty($errors);
		\OCP\Files::rmdirr($dataDir);

		$dataDir = \OCP\Files::tmpFolder();
		// 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;
	}
}