<?php
declare(strict_types=1);
/**
 * @copyright Copyright (c) 2018 Roeland Jago Douma <roeland@famdouma.nl>
 *
 * @author Roeland Jago Douma <roeland@famdouma.nl>
 *
 * @license GNU AGPL version 3 or any later version
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

namespace Test\Authentication\Token;

use OC;
use OC\Authentication\Token\PublicKeyToken;
use OC\Authentication\Token\PublicKeyTokenMapper;
use OC\Authentication\Token\IToken;
use OCP\DB\QueryBuilder\IQueryBuilder;
use OCP\IDBConnection;
use OCP\IUser;
use Test\TestCase;

/**
 * @group DB
 */
class PublicKeyTokenMapperTest extends TestCase {

	/** @var PublicKeyTokenMapper */
	private $mapper;

	/** @var IDBConnection */
	private $dbConnection;

	/** @var int */
	private $time;

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

		$this->dbConnection = OC::$server->getDatabaseConnection();
		$this->time = time();
		$this->resetDatabase();

		$this->mapper = new PublicKeyTokenMapper($this->dbConnection);
	}

	private function resetDatabase() {
		$qb = $this->dbConnection->getQueryBuilder();
		$qb->delete('authtoken')->execute();
		$qb->insert('authtoken')->values([
			'uid' => $qb->createNamedParameter('user1'),
			'login_name' => $qb->createNamedParameter('User1'),
			'password' => $qb->createNamedParameter('a75c7116460c082912d8f6860a850904|3nz5qbG1nNSLLi6V|c55365a0e54cfdfac4a175bcf11a7612aea74492277bba6e5d96a24497fa9272488787cb2f3ad34d8b9b8060934fce02f008d371df3ff3848f4aa61944851ff0'),
			'name' => $qb->createNamedParameter('Firefox on Linux'),
			'token' => $qb->createNamedParameter('9c5a2e661482b65597408a6bb6c4a3d1af36337381872ac56e445a06cdb7fea2b1039db707545c11027a4966919918b19d875a8b774840b18c6cbb7ae56fe206'),
			'type' => $qb->createNamedParameter(IToken::TEMPORARY_TOKEN),
			'last_activity' => $qb->createNamedParameter($this->time - 120, IQueryBuilder::PARAM_INT), // Two minutes ago
			'last_check' => $this->time - 60 * 10, // 10mins ago
			'public_key' => $qb->createNamedParameter('public key'),
			'private_key' => $qb->createNamedParameter('private key'),
			'version' => $qb->createNamedParameter(2),
		])->execute();
		$qb->insert('authtoken')->values([
			'uid' => $qb->createNamedParameter('user2'),
			'login_name' => $qb->createNamedParameter('User2'),
			'password' => $qb->createNamedParameter('971a337057853344700bbeccf836519f|UwOQwyb34sJHtqPV|036d4890f8c21d17bbc7b88072d8ef049a5c832a38e97f3e3d5f9186e896c2593aee16883f617322fa242728d0236ff32d163caeb4bd45e14ca002c57a88665f'),
			'name' => $qb->createNamedParameter('Firefox on Android'),
			'token' => $qb->createNamedParameter('1504445f1524fc801035448a95681a9378ba2e83930c814546c56e5d6ebde221198792fd900c88ed5ead0555780dad1ebce3370d7e154941cd5de87eb419899b'),
			'type' => $qb->createNamedParameter(IToken::TEMPORARY_TOKEN),
			'last_activity' => $qb->createNamedParameter($this->time - 60 * 60 * 24 * 3, IQueryBuilder::PARAM_INT), // Three days ago
			'last_check' => $this->time -  10, // 10secs ago
			'public_key' => $qb->createNamedParameter('public key'),
			'private_key' => $qb->createNamedParameter('private key'),
			'version' => $qb->createNamedParameter(2),
		])->execute();
		$qb->insert('authtoken')->values([
			'uid' => $qb->createNamedParameter('user1'),
			'login_name' => $qb->createNamedParameter('User1'),
			'password' => $qb->createNamedParameter('063de945d6f6b26862d9b6f40652f2d5|DZ/z520tfdXPtd0T|395f6b89be8d9d605e409e20b9d9abe477fde1be38a3223f9e508f979bf906e50d9eaa4dca983ca4fb22a241eb696c3f98654e7775f78c4caf13108f98642b53'),
			'name' => $qb->createNamedParameter('Iceweasel on Linux'),
			'token' => $qb->createNamedParameter('47af8697ba590fb82579b5f1b3b6e8066773a62100abbe0db09a289a62f5d980dc300fa3d98b01d7228468d1ab05c1aa14c8d14bd5b6eee9cdf1ac14864680c3'),
			'type' => $qb->createNamedParameter(IToken::TEMPORARY_TOKEN),
			'last_activity' => $qb->createNamedParameter($this->time - 120, IQueryBuilder::PARAM_INT), // Two minutes ago
			'last_check' => $this->time - 60 * 10, // 10mins ago
			'public_key' => $qb->createNamedParameter('public key'),
			'private_key' => $qb->createNamedParameter('private key'),
			'version' => $qb->createNamedParameter(2),
		])->execute();
	}

	private function getNumberOfTokens() {
		$qb = $this->dbConnection->getQueryBuilder();
		$result = $qb->select($qb->createFunction('count(*) as `count`'))
			->from('authtoken')
			->execute()
			->fetch();
		return (int) $result['count'];
	}

	public function testInvalidate() {
		$token = '9c5a2e661482b65597408a6bb6c4a3d1af36337381872ac56e445a06cdb7fea2b1039db707545c11027a4966919918b19d875a8b774840b18c6cbb7ae56fe206';

		$this->mapper->invalidate($token);

		$this->assertSame(2, $this->getNumberOfTokens());
	}

	public function testInvalidateInvalid() {
		$token = 'youwontfindthisoneinthedatabase';

		$this->mapper->invalidate($token);

		$this->assertSame(3, $this->getNumberOfTokens());
	}

	public function testInvalidateOld() {
		$olderThan = $this->time - 60 * 60; // One hour

		$this->mapper->invalidateOld($olderThan);

		$this->assertSame(2, $this->getNumberOfTokens());
	}

	public function testGetToken() {
		$token = new PublicKeyToken();
		$token->setUid('user2');
		$token->setLoginName('User2');
		$token->setPassword('971a337057853344700bbeccf836519f|UwOQwyb34sJHtqPV|036d4890f8c21d17bbc7b88072d8ef049a5c832a38e97f3e3d5f9186e896c2593aee16883f617322fa242728d0236ff32d163caeb4bd45e14ca002c57a88665f');
		$token->setName('Firefox on Android');
		$token->setToken('1504445f1524fc801035448a95681a9378ba2e83930c814546c56e5d6ebde221198792fd900c88ed5ead0555780dad1ebce3370d7e154941cd5de87eb419899b');
		$token->setType(IToken::TEMPORARY_TOKEN);
		$token->setRemember(IToken::DO_NOT_REMEMBER);
		$token->setLastActivity($this->time - 60 * 60 * 24 * 3);
		$token->setLastCheck($this->time - 10);
		$token->setPublicKey('public key');
		$token->setPrivateKey('private key');

		$dbToken = $this->mapper->getToken($token->getToken());

		$token->setId($dbToken->getId()); // We don't know the ID
		$token->resetUpdatedFields();

		$this->assertEquals($token, $dbToken);
	}

	/**
	 * @expectedException \OCP\AppFramework\Db\DoesNotExistException
	 */
	public function testGetInvalidToken() {
		$token = 'thisisaninvalidtokenthatisnotinthedatabase';

		$this->mapper->getToken($token);
	}

	public function testGetTokenById() {
		$token = new PublicKeyToken();
		$token->setUid('user2');
		$token->setLoginName('User2');
		$token->setPassword('971a337057853344700bbeccf836519f|UwOQwyb34sJHtqPV|036d4890f8c21d17bbc7b88072d8ef049a5c832a38e97f3e3d5f9186e896c2593aee16883f617322fa242728d0236ff32d163caeb4bd45e14ca002c57a88665f');
		$token->setName('Firefox on Android');
		$token->setToken('1504445f1524fc801035448a95681a9378ba2e83930c814546c56e5d6ebde221198792fd900c88ed5ead0555780dad1ebce3370d7e154941cd5de87eb419899b');
		$token->setType(IToken::TEMPORARY_TOKEN);
		$token->setRemember(IToken::DO_NOT_REMEMBER);
		$token->setLastActivity($this->time - 60 * 60 * 24 * 3);
		$token->setLastCheck($this->time - 10);
		$token->setPublicKey('public key');
		$token->setPrivateKey('private key');

		$dbToken = $this->mapper->getToken($token->getToken());
		$token->setId($dbToken->getId()); // We don't know the ID
		$token->resetUpdatedFields();

		$dbToken = $this->mapper->getTokenById($token->getId());
		$this->assertEquals($token, $dbToken);
	}

	/**
	 * @expectedException \OCP\AppFramework\Db\DoesNotExistException
	 */
	public function testGetTokenByIdNotFound() {
		$this->mapper->getTokenById(-1);
	}

	/**
	 * @expectedException \OCP\AppFramework\Db\DoesNotExistException
	 */
	public function testGetInvalidTokenById() {
		$id = '42';

		$this->mapper->getToken($id);
	}

	public function testGetTokenByUser() {
		/** @var IUser|\PHPUnit_Framework_MockObject_MockObject $user */
		$user = $this->createMock(IUser::class);
		$user->expects($this->once())
			->method('getUID')
			->will($this->returnValue('user1'));

		$this->assertCount(2, $this->mapper->getTokenByUser($user));
	}

	public function testGetTokenByUserNotFound() {
		/** @var IUser|\PHPUnit_Framework_MockObject_MockObject $user */
		$user = $this->createMock(IUser::class);
		$user->expects($this->once())
			->method('getUID')
			->will($this->returnValue('user1000'));

		$this->assertCount(0, $this->mapper->getTokenByUser($user));
	}

	public function testDeleteById() {
		/** @var IUser|\PHPUnit_Framework_MockObject_MockObject $user */
		$user = $this->createMock(IUser::class);
		$qb = $this->dbConnection->getQueryBuilder();
		$qb->select('id')
			->from('authtoken')
			->where($qb->expr()->eq('token', $qb->createNamedParameter('9c5a2e661482b65597408a6bb6c4a3d1af36337381872ac56e445a06cdb7fea2b1039db707545c11027a4966919918b19d875a8b774840b18c6cbb7ae56fe206')));
		$result = $qb->execute();
		$id = $result->fetch()['id'];
		$user->expects($this->once())
			->method('getUID')
			->will($this->returnValue('user1'));

		$this->mapper->deleteById($user, (int)$id);
		$this->assertEquals(2, $this->getNumberOfTokens());
	}

	public function testDeleteByIdWrongUser() {
		/** @var IUser|\PHPUnit_Framework_MockObject_MockObject $user */
		$user = $this->createMock(IUser::class);
		$id = 33;
		$user->expects($this->once())
			->method('getUID')
			->will($this->returnValue('user10000'));

		$this->mapper->deleteById($user, $id);
		$this->assertEquals(3, $this->getNumberOfTokens());
	}

	public function testDeleteByName() {
		$qb = $this->dbConnection->getQueryBuilder();
		$qb->select('name')
			->from('authtoken')
			->where($qb->expr()->eq('token', $qb->createNamedParameter('9c5a2e661482b65597408a6bb6c4a3d1af36337381872ac56e445a06cdb7fea2b1039db707545c11027a4966919918b19d875a8b774840b18c6cbb7ae56fe206')));
		$result = $qb->execute();
		$name = $result->fetch()['name'];
		$this->mapper->deleteByName($name);
		$this->assertEquals(2, $this->getNumberOfTokens());
	}

}