<?php
/* Copyright (C) 2013 Laurent Destailleur  <eldy@users.sourceforge.net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 * or see https://www.gnu.org/
 */

/**
 *      \file       test/phpunit/CodingPhpTest.php
 *      \ingroup    test
 *      \brief      PHPUnit test
 *      \remarks    To run this script as CLI:  phpunit filename.php
 */

global $conf,$user,$langs,$db;
//define('TEST_DB_FORCE_TYPE','mysql');	// This is to force using mysql driver
//require_once 'PHPUnit/Autoload.php';
require_once dirname(__FILE__).'/../../htdocs/master.inc.php';
require_once dirname(__FILE__).'/../../htdocs/core/lib/security.lib.php';
require_once dirname(__FILE__).'/../../htdocs/core/lib/security2.lib.php';

if (! defined('NOREQUIREUSER')) {
	define('NOREQUIREUSER', '1');
}
if (! defined('NOREQUIREDB')) {
	define('NOREQUIREDB', '1');
}
if (! defined('NOREQUIRESOC')) {
	define('NOREQUIRESOC', '1');
}
if (! defined('NOREQUIRETRAN')) {
	define('NOREQUIRETRAN', '1');
}
if (! defined('NOCSRFCHECK')) {
	define('NOCSRFCHECK', '1');
}
if (! defined('NOTOKENRENEWAL')) {
	define('NOTOKENRENEWAL', '1');
}
if (! defined('NOREQUIREMENU')) {
	define('NOREQUIREMENU', '1'); // If there is no menu to show
}
if (! defined('NOREQUIREHTML')) {
	define('NOREQUIREHTML', '1'); // If we don't need to load the html.form.class.php
}
if (! defined('NOREQUIREAJAX')) {
	define('NOREQUIREAJAX', '1');
}
if (! defined("NOLOGIN")) {
	define("NOLOGIN", '1');       // If this page is public (can be called outside logged session)
}

if (empty($user->id)) {
	print "Load permissions for admin user nb 1\n";
	$user->fetch(1);
	$user->getrights();
}
$conf->global->MAIN_DISABLE_ALL_MAILS=1;


/**
 * Class for PHPUnit tests
 *
 * @backupGlobals disabled
 * @backupStaticAttributes enabled
 * @remarks	backupGlobals must be disabled to have db,conf,user and lang not erased.
 */
class CodingPhpTest extends PHPUnit\Framework\TestCase
{
	protected $savconf;
	protected $savuser;
	protected $savlangs;
	protected $savdb;

	/**
	 * Constructor
	 * We save global variables into local variables
	 *
	 * @return SecurityTest
	 */
	public function __construct()
	{
		parent::__construct();

		//$this->sharedFixture
		global $conf,$user,$langs,$db;
		$this->savconf=$conf;
		$this->savuser=$user;
		$this->savlangs=$langs;
		$this->savdb=$db;

		print __METHOD__." db->type=".$db->type." user->id=".$user->id;
		//print " - db ".$db->db;
		print "\n";
	}

	/**
	 * setUpBeforeClass
	 *
	 * @return void
	 */
	public static function setUpBeforeClass()
	{
		global $conf,$user,$langs,$db;
		$db->begin(); // This is to have all actions inside a transaction even if test launched without suite.

		print __METHOD__."\n";
	}

	/**
	 * tearDownAfterClass
	 *
	 * @return	void
	 */
	public static function tearDownAfterClass()
	{
		global $conf,$user,$langs,$db;
		$db->rollback();

		print __METHOD__."\n";
	}

	/**
	 * Init phpunit tests
	 *
	 * @return  void
	 */
	protected function setUp()
	{
		global $conf,$user,$langs,$db;
		$conf=$this->savconf;
		$user=$this->savuser;
		$langs=$this->savlangs;
		$db=$this->savdb;

		print __METHOD__."\n";
	}

	/**
	 * End phpunit tests
	 *
	 * @return  void
	 */
	protected function tearDown()
	{
		print __METHOD__."\n";
	}

	/**
	 * testSql
	 *
	 * @return string
	 */
	public function testPHP()
	{
		global $conf,$user,$langs,$db;
		$conf=$this->savconf;
		$user=$this->savuser;
		$langs=$this->savlangs;
		$db=$this->savdb;

		include_once DOL_DOCUMENT_ROOT.'/core/lib/files.lib.php';
		$filesarray = dol_dir_list(DOL_DOCUMENT_ROOT, 'files', 1, '\.php', null, 'fullname', SORT_ASC, 0, 0, '', 1);
		//$filesarray = dol_dir_list(DOL_DOCUMENT_ROOT, 'files', 1, '\.php', null, 'fullname');

		foreach ($filesarray as $key => $file) {
			if (preg_match('/\/htdocs\/includes\//', $file['fullname'])) {
				continue;
			}
			if (preg_match('/\/htdocs\/custom\//', $file['fullname'])) {
				continue;
			}
			if (preg_match('/\/htdocs\/dolimed/', $file['fullname'])) {
				continue;
			}
			if (preg_match('/\/htdocs\/nltechno/', $file['fullname'])) {
				continue;
			}
			if (preg_match('/\/htdocs\/teclib/', $file['fullname'])) {
				continue;
			}

			print 'Check php file '.$file['fullname']."\n";
			$filecontent=file_get_contents($file['fullname']);

			if (preg_match('/\.class\.php/', $file['relativename'])
				|| preg_match('/boxes\/box_/', $file['relativename'])
				|| preg_match('/modules\/.*\/doc\/(doc|pdf)_/', $file['relativename'])
				|| preg_match('/modules\/(import|mailings|printing)\//', $file['relativename'])
				|| in_array($file['name'], array('modules_boxes.php', 'rapport.pdf.php', 'TraceableDB.php'))) {
				// Check into Class files
				if (! in_array($file['name'], array(
					'api.class.php',
					'commonobject.class.php',
					'conf.class.php',
					'html.form.class.php',
					'translate.class.php',
					'utils.class.php',
					'TraceableDB.php',
					'multicurrency.class.php',
					'infobox.class.php'
				))) {
					// Must not find $db->
					$ok=true;
					$matches=array();
					// Check string $db-> inside a class.php file (it should be $this->db-> into such classes)
					preg_match_all('/'.preg_quote('$db->', '/').'/', $filecontent, $matches, PREG_SET_ORDER);
					foreach ($matches as $key => $val) {
						$ok=false;
						break;
					}
					//print __METHOD__." Result for checking we don't have non escaped string in sql requests for file ".$file."\n";
					$this->assertTrue($ok, 'Found string $db-> into a .class.php file in '.$file['relativename'].'. Inside a .class file, you should use $this->db-> instead.');
					//exit;
				}
			} else {
				// Check into Include files
				if (! in_array($file['name'], array(
					'objectline_view.tpl.php',
					'extrafieldsinexport.inc.php',
					'extrafieldsinimport.inc.php',
					'DolQueryCollector.php'
				))) {
					// Must not found $this->db->
					$ok=true;
					$matches=array();
					// Check string $this->db-> into a non class.php file (it shoud be $db-> into such classes)
					preg_match_all('/'.preg_quote('$this->db->', '/').'/', $filecontent, $matches, PREG_SET_ORDER);
					foreach ($matches as $key => $val) {
						$ok=false;
						break;
					}
					//print __METHOD__." Result for checking we don't have non escaped string in sql requests for file ".$file."\n";
					$this->assertTrue($ok, 'Found string "$this->db->" in '.$file['relativename']);
					//exit;
				}
			}

			// Check if a var_dump has been forgotten
			if (!preg_match('/test\/phpunit/', $file['fullname'])) {
				$ok=true;
				$matches=array();
				preg_match_all('/(.)\s*var_dump/', $filecontent, $matches, PREG_SET_ORDER);
				//var_dump($matches);
				foreach ($matches as $key => $val) {
					if ($val[1] != '/' && $val[1] != '*') {
						$ok=false;
						break;
					}
					break;
				}
				//print __METHOD__." Result for checking we don't have non escaped string in sql requests for file ".$file."\n";
				$this->assertTrue($ok, 'Found string var_dump that is not just after /* or // in '.$file['relativename']);
				//exit;
			}

			// Check get_class followed by __METHOD__
			$ok=true;
			$matches=array();
			preg_match_all('/'.preg_quote('get_class($this)."::".__METHOD__', '/').'/', $filecontent, $matches, PREG_SET_ORDER);
			foreach ($matches as $key => $val) {
				$ok=false;
				break;
			}
			//print __METHOD__." Result for checking we don't have non escaped string in sql requests for file ".$file."\n";
			$this->assertTrue($ok, 'Found string get_class($this)."::".__METHOD__ that must be replaced with __METHOD__ only in '.$file['relativename']);
			//exit;

			// Check string $this->db->idate without quotes
			$ok=true;
			$matches=array();
			preg_match_all('/(..)\s*\.\s*\$this->db->idate\(/', $filecontent, $matches, PREG_SET_ORDER);
			foreach ($matches as $key => $val) {
				if ($val[1] != '\'"' && $val[1] != '\'\'') {
					$ok=false;
					break;
				}
				//if ($reg[0] != 'db') $ok=false;
			}
			//print __METHOD__." Result for checking we don't have non escaped string in sql requests for file ".$file."\n";
			$this->assertTrue($ok, 'Found a $this->db->idate to forge a sql request without quotes around this date field '.$file['relativename']);
			//exit;


			// Check sql string DELETE|OR|AND|WHERE|INSERT ... yyy = ".$xxx
			//  with xxx that is not 'thi' (for $this->db->sanitize) and 'db-' (for $db->sanitize). It means we forget a ' if string, or an (int) if int, when forging sql request.
			$ok=true;
			$matches=array();
			preg_match_all('/(DELETE|OR|AND|WHERE|INSERT)\s.*([^\s][^\s][^\s])\s*=\s*(\'|")\s*\.\s*\$(...)/', $filecontent, $matches, PREG_SET_ORDER);
			foreach ($matches as $key => $val) {
				if ($val[2] == 'ity' && $val[4] == 'con') {		// exclude entity = ".$conf->entity
					continue;
				}
				if ($val[2] == 'ame' && $val[4] == 'db-' && preg_match('/WHERE name/', $val[0])) {		// exclude name = ".$db->encrypt(
					continue;
				}
				if ($val[2] == 'ame' && $val[4] == 'thi' && preg_match('/WHERE name/', $val[0])) {		// exclude name = ".$this->db->encrypt(
					continue;
				}
				var_dump($matches);
				$ok=false;
				break;
			}
			//print __METHOD__." Result for checking we don't have non escaped string in sql requests for file ".$file."\n";
			$this->assertTrue($ok, 'Found non quoted or not casted var into sql request '.$file['relativename'].' - Bad.');
			//exit;

			// Check that forged sql string is using ' instead of " as string PHP quotes
			$ok=true;
			$matches=array();
			preg_match_all('/\$sql \.= \'\s*VALUES.*\$/', $filecontent, $matches, PREG_SET_ORDER);
			foreach ($matches as $key => $val) {
				//if ($val[1] != '\'"' && $val[1] != '\'\'') {
					var_dump($matches);
					$ok=false;
					break;
				//}
				//if ($reg[0] != 'db') $ok=false;
			}
			//print __METHOD__." Result for checking we don't have non escaped string in sql requests for file ".$file."\n";
			$this->assertTrue($ok, 'Found a forged SQL string that mix on same line the use of \' for PHP string and PHP variables into file '.$file['relativename'].' Use " to forge PHP string like this: $sql = "SELET ".$myvar...');
			//exit;

			// Check that forged sql string is using ' instead of " as string PHP quotes
			$ok=true;
			$matches=array();
			preg_match_all('/\$sql \.?= \'SELECT.*\$/', $filecontent, $matches, PREG_SET_ORDER);
			foreach ($matches as $key => $val) {
				var_dump($matches);
				$ok=false;
				break;
			}
			$this->assertTrue($ok, 'Found a forged SQL string that mix on same line the use of \' for PHP string and PHP variables into file '.$file['relativename'].' Use " to forge PHP string like this: $sql = "SELECT ".$myvar...');

			// Check sql string VALUES ... , ".$xxx
			//  with xxx that is not 'db-' (for $db->escape). It means we forget a ' if string, or an (int) if int, when forging sql request.
			$ok=true;
			$matches=array();
			preg_match_all('/(VALUES).*,\s*"\s*\.\s*\$(...)/', $filecontent, $matches, PREG_SET_ORDER);
			foreach ($matches as $key => $val) {
				if ($val[1] == 'VALUES' && $val[2] == 'db-') {		// exclude $db->escape(
					continue;
				}
				if ($val[1] == 'VALUES' && $val[2] == 'thi' && preg_match('/this->db->encrypt/', $val[0])) {	// exclude ".$this->db->encrypt(
					continue;
				}
				var_dump($matches);
				$ok=false;
				break;
			}
			//print __METHOD__." Result for checking we don't have non escaped string in sql requests for file ".$file."\n";
			$this->assertTrue($ok, 'Found non quoted or not casted var into sql request '.$file['relativename'].' - Bad.');
			//exit;

			// Check '".$xxx non escaped

			// Check string   ='".$this->xxx   with xxx that is not 'escape'. It means we forget a db->escape when forging sql request.
			$ok=true;
			$matches=array();
			preg_match_all('/=\s*\'"\s*\.\s*\$this->(....)/', $filecontent, $matches, PREG_SET_ORDER);
			foreach ($matches as $key => $val) {
				if ($val[1] != 'db->' && $val[1] != 'esca') {
					$ok=false;
					break;
				}
			}
			//print __METHOD__." Result for checking we don't have non escaped string in sql requests for file ".$file."\n";
			$this->assertTrue($ok, 'Found non escaped string in building of a sql request (case 1) in '.$file['relativename'].' - Bad.');

			// Check string sql|set|WHERE|...'".$yyy->xxx   with xxx that is not 'escape', 'idate', .... It means we forget a db->escape when forging sql request.
			$ok=true;
			$matches=array();
			preg_match_all('/(sql|SET|WHERE|INSERT|VALUES|LIKE).+\s*\'"\s*\.\s*\$(.......)/', $filecontent, $matches, PREG_SET_ORDER);
			foreach ($matches as $key => $val) {
				if (! in_array($val[2], array('this->d', 'this->e', 'db->esc', 'dbs->es', 'dbs->id', 'mydb->e', 'dbsessi', 'db->ida', 'escaped', 'exclude', 'include'))) {
					$ok=false;	// This will generate error
					break;
				}
				//if ($reg[0] != 'db') $ok=false;
			}
			//print __METHOD__." Result for checking we don't have non escaped string in sql requests for file ".$file."\n";
			$this->assertTrue($ok, 'Found non escaped string in building of a sql request (case 2) in '.$file['relativename'].': '.$val[0].' - Bad.');
			//exit;

			// Check string sql|set...'.$yyy->xxx   with xxx that is not 'escape', 'idate', .... It means we forget a db->escape when forging sql request.
			$ok=true;
			$matches=array();
			preg_match_all('/(\$sql|SET\s|WHERE\s|INSERT\s|VALUES\s|VALUES\().+\s*\'\s*\.\s*\$(.........)/', $filecontent, $matches, PREG_SET_ORDER);
			foreach ($matches as $key => $val) {
				if (! in_array($val[2], array('this->db-', 'db->prefi', 'db->sanit', 'conf->ent', 'key : \'\')', 'key])."\')', 'excludefi', 'regexstri', ''))) {
					$ok=false;
					var_dump($matches);
					break;
				}
				//if ($reg[0] != 'db') $ok=false;
			}
			//print __METHOD__." Result for checking we don't have non escaped string in sql requests for file ".$file."\n";
			$this->assertTrue($ok, 'Found non escaped string in building of a sql request (case 3) in '.$file['relativename'].': '.$val[0].' - Bad.');
			//exit;

			// Checks with IN

			// Check string ' IN (".xxx' or ' IN (\'.xxx'  with xxx that is not '$this->db->sanitize' and not '$db->sanitize'. It means we forget a db->sanitize when forging sql request.
			$ok=true;
			$matches=array();
			preg_match_all('/\s+IN\s*\([\'"]\s*\.\s*(.........)/i', $filecontent, $matches, PREG_SET_ORDER);
			foreach ($matches as $key => $val) {
				//var_dump($val);
				if (!in_array($val[1], array('$db->sani', '$this->db', 'getEntity', 'WON\',\'L', 'self::STA', 'Commande:', 'CommandeF', 'Entrepot:', 'Facture::', 'FactureFo', 'ExpenseRe', 'Societe::', 'Ticket::S'))) {
					$ok=false;
					break;
				}
				//if ($reg[0] != 'db') $ok=false;
			}
			//print __METHOD__." Result for checking we don't have non escaped string in sql requests for file ".$file."\n";
			$this->assertTrue($ok, 'Found non sanitized string in building of a IN or NOT IN sql request '.$file['relativename'].' - Bad.');
			//exit;

			// Check string ' IN (\'".xxx'   with xxx that is not '$this->db->sanitize' and not '$db->sanitize'. It means we forget a db->sanitize when forging sql request.
			$ok=true;
			$matches=array();
			preg_match_all('/\s+IN\s*\(\'"\s*\.\s*(.........)/i', $filecontent, $matches, PREG_SET_ORDER);
			foreach ($matches as $key => $val) {
				//var_dump($val);
				if (!in_array($val[1], array('$db->sani', '$this->db', 'getEntity', 'WON\',\'L', 'self::STA', 'Commande:', 'CommandeF', 'Entrepot:', 'Facture::', 'FactureFo', 'ExpenseRe', 'Societe::', 'Ticket::S'))) {
					$ok=false;
					break;
				}
				//if ($reg[0] != 'db') $ok=false;
			}
			//print __METHOD__." Result for checking we don't have non escaped string in sql requests for file ".$file."\n";
			$this->assertTrue($ok, 'Found non sanitized string in building of a IN or NOT IN sql request '.$file['relativename'].' - Bad.');
			//exit;

			// Test that output of $_SERVER\[\'QUERY_STRING\'\] is escaped.
			$ok=true;
			$matches=array();
			preg_match_all('/(..............)\$_SERVER\[\'QUERY_STRING\'\]/', $filecontent, $matches, PREG_SET_ORDER);
			foreach ($matches as $key => $val) {
				if ($val[1] != 'scape_htmltag(' && $val[1] != 'ing_nohtmltag(' && $val[1] != 'dol_escape_js(') {
					$ok=false;
					break;
				}
			}
			$this->assertTrue($ok, 'Found a $_SERVER[\'QUERY_STRING\'] without dol_escape_htmltag neither dol_string_nohtmltag around it, in file '.$file['relativename'].'. Bad.');


			// Check GETPOST(... 'none');
			$ok=true;
			$matches=array();
			preg_match_all('/GETPOST\s*\(([^\)]+),\s*["\']none["\']/i', $filecontent, $matches, PREG_SET_ORDER);
			foreach ($matches as $key => $val) {
				//var_dump($val);
				if (!in_array($val[1], array(
						"'replacestring'", "'htmlheader'", "'WEBSITE_HTML_HEADER'", "'WEBSITE_CSS_INLINE'", "'WEBSITE_JS_INLINE'", "'WEBSITE_MANIFEST_JSON'", "'PAGE_CONTENT'", "'WEBSITE_README'",
						"'search_status'", '"mysqldump"', '"postgresqldump"', "'db_pass_root'", "'db_pass'", '"pass"', '"pass1"', '"pass2"', '"password"', "'password'", '"MAIN_MAIL_SMTPS_PW"'))) {
					$ok=false;
					break;
				}
				//if ($reg[0] != 'db') $ok=false;
			}
			//print __METHOD__." Result for checking we don't have non escaped string in sql requests for file ".$file."\n";
			$this->assertTrue($ok, 'Found a GETPOST that use \'none\' as a parameter in file '.$file['relativename'].' and param is not an allowed parameter for using none - Bad.');
			//exit;


			// Test that first param of print_liste_field_titre is a translation key and not the translated value
			$ok=true;
			$matches=array();
			// Check string ='print_liste_field_titre\(\$langs'.
			preg_match_all('/print_liste_field_titre\(\$langs/', $filecontent, $matches, PREG_SET_ORDER);
			foreach ($matches as $key => $val) {
				   $ok=false;
				   break;
			}
			$this->assertTrue($ok, 'Found a use of print_liste_field_titre with first parameter that is a translated value instead of just the translation key in file '.$file['relativename'].'. Bad.');


			// Test we don't have <br />
			$ok=true;
			$matches=array();
			preg_match_all('/<br\s+\/>/', $filecontent, $matches, PREG_SET_ORDER);
			foreach ($matches as $key => $val) {
				if ($file['name'] != 'functions.lib.php') {
					$ok=false;
					break;
				}
			}
			$this->assertTrue($ok, 'Found a tag <br /> that is for xml in file '.$file['relativename'].'. You must use html syntax <br> instead.');


			// Test we don't have name="token" value="'.$_SESSION['newtoken'], we must use name="token" value="'.newToken() instead.
			$ok=true;
			$matches=array();
			preg_match_all('/name="token" value="\'\s*\.\s*\$_SESSION/', $filecontent, $matches, PREG_SET_ORDER);
			foreach ($matches as $key => $val) {
				if ($file['name'] != 'excludefile.php') {
					$ok=false;
					break;
				}
			}
			$this->assertTrue($ok, 'Found a forbidden string sequence into '.$file['relativename'].' : name="token" value="\'.$_SESSION[..., you must use a newToken() instead of $_SESSION[\'newtoken\'].');


			// Test we don't have @var array(
			$ok=true;
			$matches=array();
			preg_match_all('/preg_grep\(.*\$/', $filecontent, $matches, PREG_SET_ORDER);
			foreach ($matches as $key => $val) {
				if (strpos($val[0], 'preg_quote') === false) {
					$ok=false;
					break;
				}
			}
			$this->assertTrue($ok, 'Found a preg_grep with a param that is a $var but without preg_quote in file '.$file['relativename'].'.');


			// Test we don't have @var array(
			$ok=true;
			$matches=array();
			preg_match_all('/@var\s+array\(/', $filecontent, $matches, PREG_SET_ORDER);
			foreach ($matches as $key => $val) {
				$ok=false;
				break;
			}
			$this->assertTrue($ok, 'Found a declaration @var array() instead of @var array in file '.$file['relativename'].'.');


			// Test we don't have CURDATE()
			$ok=true;
			$matches=array();
			preg_match_all('/CURDATE\(\)/', $filecontent, $matches, PREG_SET_ORDER);
			foreach ($matches as $key => $val) {
				$ok=false;
				break;
			}
			$this->assertTrue($ok, 'Found a CURDATE\(\) into code. Do not use this SQL method in file '.$file['relativename'].'. You must use the PHP function dol_now() instead.');
		}

		return;
	}
}