Issues in index.php - All Issues - Inspection of "Cache" - elkarte/Elkarte - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — development (#2330)

by Joshua

created 2015-12-27 04:01 UTC

index.php (4 issues)

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<?php

/**
 * This, as you have probably guessed, is the crux for all functions.
 * Everything should start here, so all the setup and security is done
 * properly.
 *
 * @name      ElkArte Forum
 * @copyright ElkArte Forum contributors
 * @license   BSD http://opensource.org/licenses/BSD-3-Clause
 *
 * This software is a derived product, based on:
 *
 * Simple Machines Forum (SMF)
 * copyright:	2011 Simple Machines (http://www.simplemachines.org)
 * license:		BSD, See included LICENSE.TXT for terms and conditions.
 *
 * @version 1.1 dev
 *
 */

$time_start = microtime(true);

// The software version
const FORUM_VERSION = 'ElkArte 1.1';

// First things first, but not necessarily in that order.
const ELK = '1';

// Shortcut for the browser cache stale
const CACHE_STALE = '?R11';

// Report errors but not depreciated ones
error_reporting(E_ALL | E_STRICT & ~8192);

// Directional only script time usage for display
if (function_exists('getrusage'))
	$rusage_start = getrusage();
else
	$rusage_start = array();

// Turn on output buffering if it isn't already on (via php.ini for example)
if (!ob_get_level())
	ob_start();

$db_show_debug = false;

// We don't need no globals. (a bug in "old" versions of PHP)
foreach (array('db_character_set', 'cachedir') as $variable)
	if (isset($GLOBALS[$variable]))
		unset($GLOBALS[$variable], $GLOBALS[$variable]);

// Where the Settings.php file is located
$settings_loc = 'Settings.php';

// First thing: if the install dir exists, just send anybody there
if (file_exists('install'))
{
	if (file_exists($settings_loc))
	{
		require_once($settings_loc);
	}

	// The ignore_install_dir var is for developers only. Do not add it on production sites
	if (empty($ignore_install_dir))
	{
		header('Location: http' . (!empty($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) == 'on' ? 's' : '') . '://' . (empty($_SERVER['HTTP_HOST']) ? $_SERVER['SERVER_NAME'] . (empty($_SERVER['SERVER_PORT']) || $_SERVER['SERVER_PORT'] == '80' ? '' : ':' . $_SERVER['SERVER_PORT']) : $_SERVER['HTTP_HOST']) . (strtr(dirname($_SERVER['PHP_SELF']), '\\', '/') == '/' ? '' : strtr(dirname($_SERVER['PHP_SELF']), '\\', '/')) . '/install/install.php');
if ( ! in_array($value, array('this-is-allowed', 'and-this-too'), true)) {
    throw new \InvalidArgumentException('This input is not allowed.');
}
		die;
	}
}
else
{
	require_once($settings_loc);
}


// Make sure the paths are correct... at least try to fix them.
if (!file_exists($boarddir) && file_exists('agreement.txt'))
	$boarddir = __DIR__;
if (!file_exists($sourcedir . '/SiteDispatcher.class.php') && file_exists($boarddir . '/sources'))
	$sourcedir = $boarddir . '/sources';

// Check that directories which didn't exist in past releases are initialized.
if ((empty($cachedir) || !file_exists($cachedir)) && file_exists($boarddir . '/cache'))
	$cachedir = $boarddir . '/cache';
if ((empty($extdir) || !file_exists($extdir)) && file_exists($sourcedir . '/ext'))
	$extdir = $sourcedir . '/ext';
if ((empty($languagedir) || !file_exists($languagedir)) && file_exists($boarddir . '/themes/default/languages'))
	$languagedir = $boarddir . '/themes/default/languages';

// Time to forget about variables and go with constants!
DEFINE('BOARDDIR', $boarddir);
DEFINE('CACHEDIR', $cachedir);
DEFINE('EXTDIR', $extdir);
DEFINE('LANGUAGEDIR', $languagedir);
DEFINE('SOURCEDIR', $sourcedir);
DEFINE('ADMINDIR', $sourcedir . '/admin');
DEFINE('CONTROLLERDIR', $sourcedir . '/controllers');
DEFINE('SUBSDIR', $sourcedir . '/subs');
DEFINE('ADDONSDIR', $boarddir . '/addons');
unset($boarddir, $cachedir, $sourcedir, $languagedir, $extdir);

// Files we cannot live without.
require_once(SOURCEDIR . '/QueryString.php');
require_once(SOURCEDIR . '/Session.php');
require_once(SOURCEDIR . '/Subs.php');
require_once(SOURCEDIR . '/Logging.php');
require_once(SOURCEDIR . '/Load.php');
require_once(SOURCEDIR . '/Security.php');
require_once(SUBSDIR . '/Cache.subs.php');

// Initialize the class Autoloader
require(SOURCEDIR . '/Autoloader.class.php');
$autoloder = Elk_Autoloader::getInstance();
$autoloder->setupAutoloader(array(SOURCEDIR, SUBSDIR, CONTROLLERDIR, ADMINDIR, ADDONSDIR));
$autoloder->register(SOURCEDIR, '\\ElkArte');

// Show lots of debug information below the page, not for production sites
if ($db_show_debug === true)
	Debug::get()->rusage('start', $rusage_start);

// Forum in extended maintenance mode? Our trip ends here with a bland message.
if (!empty($maintenance) && $maintenance == 2)
	Errors::instance()->display_maintenance_message();

// Clean the request.
cleanRequest();

// Initiate the database connection and define some database functions to use.
loadDatabase();

// Let's set up out shiny new hooks handler.
Hooks::init(database(), Debug::get());

// It's time for settings loaded from the database.
reloadSettings();

// Our good ole' contextual array, which will hold everything
$context = array();

// Seed the random generator.
elk_seed_generator();

// Before we get carried away, are we doing a scheduled task? If so save CPU cycles by jumping out!
if (isset($_GET['scheduled']))
{
	// Don't make people wait on us if we can help it.
	if (function_exists('fastcgi_finish_request'))
		fastcgi_finish_request();

	$controller = new ScheduledTasks_Controller();
	$controller->action_autotask();
}

// Check if compressed output is enabled, supported, and not already being done.
if (!empty($modSettings['enableCompressedOutput']) && !headers_sent())
{
	// If zlib is being used, turn off output compression.
	if (ini_get('zlib.output_compression') >= 1 || ini_get('output_handler') == 'ob_gzhandler')
		$modSettings['enableCompressedOutput'] = 0;
	else
	{
		@ob_end_clean();
// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
		ob_start('ob_gzhandler');
	}
}

// Register error & exception handlers.
Errors::instance()->register_handlers();

// Start the session. (assuming it hasn't already been.)
loadSession();

// Restore post data if we are revalidating OpenID.
if (isset($_GET['openid_restore_post']) && !empty($_SESSION['openid']['saved_data'][$_GET['openid_restore_post']]['post']) && empty($_POST))
{
	$_POST = $_SESSION['openid']['saved_data'][$_GET['openid_restore_post']]['post'];
	unset($_SESSION['openid']['saved_data'][$_GET['openid_restore_post']]);
}

// Pre-dispatch
elk_main();

// Call obExit specially; we're coming from the main area ;).
obExit(null, null, true);

/**
 * The main dispatcher.
 * This delegates to each area.
 */
function elk_main()
// Bad
class Router
{
    public function generate($path)
    {
        return $_SERVER['HOST'].$path;
    }
}

// Better
class Router
{
    private $host;

    public function __construct($host)
    {
        $this->host = $host;
    }

    public function generate($path)
    {
        return $this->host.$path;
    }
}

class Controller
{
    public function myAction(Request $request)
    {
        // Instead of
        $page = isset($_GET['page']) ? intval($_GET['page']) : 1;

        // Better (assuming you use the Symfony2 request)
        $page = $request->query->get('page', 1);
    }
}
{
	global $modSettings, $user_info, $topic, $board_info, $context, $maintenance;

	// A safer way to work with our form globals
	$_req = HttpReq::instance();

	// Special case: session keep-alive, output a transparent pixel.
	if ($_req->getQuery('action') === 'keepalive')
	{
		header('Content-Type: image/gif');
		die("\x47\x49\x46\x38\x39\x61\x01\x00\x01\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x21\xF9\x04\x01\x00\x00\x00\x00\x2C\x00\x00\x00\x00\x01\x00\x01\x00\x00\x02\x02\x44\x01\x00\x3B");

	}

	// We should set our security headers now.
	frameOptionsHeader();
	securityOptionsHeader();

	// Load the user's cookie (or set as guest) and load their settings.
	loadUserSettings();

	// Load the current board's information.
	loadBoard();

	// Load the current user's permissions.
	loadPermissions();

	// Load BadBehavior before we go much further
	loadBadBehavior();

	// Attachments don't require the entire theme to be loaded.
	if ($_req->getQuery('action') === 'dlattach' && (!empty($modSettings['allow_guestAccess']) && $user_info['is_guest']) && (empty($maintenance) || allowedTo('admin_forum')))
		detectBrowser();
	// Load the current theme.  (note that ?theme=1 will also work, may be used for guest theming.)
	else
		loadTheme();

	// The parser is not a DIC just yet
	loadBBCParsers();

	// Check if the user should be disallowed access.
	is_not_banned();

	// If we are in a topic and don't have permission to approve it then duck out now.
	if (!empty($topic) && empty($board_info['cur_topic_approved']) && !allowedTo('approve_posts') && ($user_info['id'] != $board_info['cur_topic_starter'] || $user_info['is_guest']))
		Errors::instance()->fatal_lang_error('not_a_topic', false);

	$no_stat_actions = array('dlattach', 'jsoption', 'requestmembers', 'jslocale', 'xmlpreview', 'suggest', '.xml', 'xmlhttp', 'verificationcode', 'viewquery', 'viewadminfile');
	call_integration_hook('integrate_pre_log_stats', array(&$no_stat_actions));

	// Do some logging, unless this is an attachment, avatar, toggle of editor buttons, theme option, XML feed etc.
	if (empty($_REQUEST['action']) || !in_array($_REQUEST['action'], $no_stat_actions)
		|| (!empty($_REQUEST['sa']) && !in_array($_REQUEST['sa'], $no_stat_actions)))
	{
		// I see you!
		writeLog();

		// Track forum statistics and hits...?
		if (!empty($modSettings['hitStats']))
			trackStats(array('hits' => '+'));
	}
	unset($no_stat_actions);

	// What shall we do?
	$dispatcher = new Site_Dispatcher();

	// Show where we came from, and go
	$context['site_action'] = $dispatcher->site_action();
	$context['site_action'] = !empty($context['site_action']) ? $context['site_action'] : (isset($_REQUEST['action']) ? $_REQUEST['action'] : '');
	$dispatcher->dispatch();
}

Pull Request — development (#2330)

index.php (4 issues)

Labels

Severity

Introduced By

Upgrade to new PHP Analysis Engine

General Strategies to prevent injection

1			<?php
2
3			/**
4			* This, as you have probably guessed, is the crux for all functions.
5			* Everything should start here, so all the setup and security is done
6			* properly.
7			*
8			* @name ElkArte Forum
9			* @copyright ElkArte Forum contributors
10			* @license BSD http://opensource.org/licenses/BSD-3-Clause
11			*
12			* This software is a derived product, based on:
13			*
14			* Simple Machines Forum (SMF)
15			* copyright: 2011 Simple Machines (http://www.simplemachines.org)
16			* license: BSD, See included LICENSE.TXT for terms and conditions.
17			*
18			* @version 1.1 dev
19			*
20			*/
21
22			$time_start = microtime(true);
23
24			// The software version
25			const FORUM_VERSION = 'ElkArte 1.1';
26
27			// First things first, but not necessarily in that order.
28			const ELK = '1';
29
30			// Shortcut for the browser cache stale
31			const CACHE_STALE = '?R11';
32
33			// Report errors but not depreciated ones
34			error_reporting(E_ALL \| E_STRICT & ~8192);
35
36			// Directional only script time usage for display
37			if (function_exists('getrusage'))
38			$rusage_start = getrusage();
39			else
40			$rusage_start = array();
41
42			// Turn on output buffering if it isn't already on (via php.ini for example)
43			if (!ob_get_level())
44			ob_start();
45
46			$db_show_debug = false;
47
48			// We don't need no globals. (a bug in "old" versions of PHP)
49			foreach (array('db_character_set', 'cachedir') as $variable)
50			if (isset($GLOBALS[$variable]))
51			unset($GLOBALS[$variable], $GLOBALS[$variable]);
52
53			// Where the Settings.php file is located
54			$settings_loc = 'Settings.php';
55
56			// First thing: if the install dir exists, just send anybody there
57			if (file_exists('install'))
58			{
59			if (file_exists($settings_loc))
60			{
61			require_once($settings_loc);
62			}
63
64			// The ignore_install_dir var is for developers only. Do not add it on production sites
65			if (empty($ignore_install_dir))
66			{
67			header('Location: http' . (!empty($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) == 'on' ? 's' : '') . '://' . (empty($_SERVER['HTTP_HOST']) ? $_SERVER['SERVER_NAME'] . (empty($_SERVER['SERVER_PORT']) \|\| $_SERVER['SERVER_PORT'] == '80' ? '' : ':' . $_SERVER['SERVER_PORT']) : $_SERVER['HTTP_HOST']) . (strtr(dirname($_SERVER['PHP_SELF']), '\\', '/') == '/' ? '' : strtr(dirname($_SERVER['PHP_SELF']), '\\', '/')) . '/install/install.php');
			0 ignored issues – show Security Response Splitting introduced 2015-12-08 21:59 UTC by Report Bug Copy Issue Report Show Similar Issues like this `'Location: http' . (!emp... '/install/install.php'` can contain request data and is used in response header context(s) leading to a potential security vulnerability. General Strategies to prevent injection In general, it is advisable to prevent any user-data to reach this point. This can be done by white-listing certain values: if ( ! in_array($value, array('this-is-allowed', 'and-this-too'), true)) { throw new \InvalidArgumentException('This input is not allowed.'); } For numeric data, we recommend to explicitly cast the data: $sanitized = (integer) $tainted; Loading history...
68			die;
69			}
70			}
71			else
72			{
73			require_once($settings_loc);
74			}
75
76
77			// Make sure the paths are correct... at least try to fix them.
78			if (!file_exists($boarddir) && file_exists('agreement.txt'))
79			$boarddir = __DIR__;
80			if (!file_exists($sourcedir . '/SiteDispatcher.class.php') && file_exists($boarddir . '/sources'))
81			$sourcedir = $boarddir . '/sources';
82
83			// Check that directories which didn't exist in past releases are initialized.
84			if ((empty($cachedir) \|\| !file_exists($cachedir)) && file_exists($boarddir . '/cache'))
85			$cachedir = $boarddir . '/cache';
86			if ((empty($extdir) \|\| !file_exists($extdir)) && file_exists($sourcedir . '/ext'))
87			$extdir = $sourcedir . '/ext';
88			if ((empty($languagedir) \|\| !file_exists($languagedir)) && file_exists($boarddir . '/themes/default/languages'))
89			$languagedir = $boarddir . '/themes/default/languages';
90
91			// Time to forget about variables and go with constants!
92			DEFINE('BOARDDIR', $boarddir);
93			DEFINE('CACHEDIR', $cachedir);
94			DEFINE('EXTDIR', $extdir);
95			DEFINE('LANGUAGEDIR', $languagedir);
96			DEFINE('SOURCEDIR', $sourcedir);
97			DEFINE('ADMINDIR', $sourcedir . '/admin');
98			DEFINE('CONTROLLERDIR', $sourcedir . '/controllers');
99			DEFINE('SUBSDIR', $sourcedir . '/subs');
100			DEFINE('ADDONSDIR', $boarddir . '/addons');
101			unset($boarddir, $cachedir, $sourcedir, $languagedir, $extdir);
102
103			// Files we cannot live without.
104			require_once(SOURCEDIR . '/QueryString.php');
105			require_once(SOURCEDIR . '/Session.php');
106			require_once(SOURCEDIR . '/Subs.php');
107			require_once(SOURCEDIR . '/Logging.php');
108			require_once(SOURCEDIR . '/Load.php');
109			require_once(SOURCEDIR . '/Security.php');
110			require_once(SUBSDIR . '/Cache.subs.php');
111
112			// Initialize the class Autoloader
113			require(SOURCEDIR . '/Autoloader.class.php');
114			$autoloder = Elk_Autoloader::getInstance();
115			$autoloder->setupAutoloader(array(SOURCEDIR, SUBSDIR, CONTROLLERDIR, ADMINDIR, ADDONSDIR));
116			$autoloder->register(SOURCEDIR, '\\ElkArte');
117
118			// Show lots of debug information below the page, not for production sites
119			if ($db_show_debug === true)
120			Debug::get()->rusage('start', $rusage_start);
121
122			// Forum in extended maintenance mode? Our trip ends here with a bland message.
123			if (!empty($maintenance) && $maintenance == 2)
124			Errors::instance()->display_maintenance_message();
125
126			// Clean the request.
127			cleanRequest();
128
129			// Initiate the database connection and define some database functions to use.
130			loadDatabase();
131
132			// Let's set up out shiny new hooks handler.
133			Hooks::init(database(), Debug::get());
134
135			// It's time for settings loaded from the database.
136			reloadSettings();
137
138			// Our good ole' contextual array, which will hold everything
139			$context = array();
140
141			// Seed the random generator.
142			elk_seed_generator();
143
144			// Before we get carried away, are we doing a scheduled task? If so save CPU cycles by jumping out!
145			if (isset($_GET['scheduled']))
146			{
147			// Don't make people wait on us if we can help it.
148			if (function_exists('fastcgi_finish_request'))
149			fastcgi_finish_request();
150
151			$controller = new ScheduledTasks_Controller();
152			$controller->action_autotask();
153			}
154
155			// Check if compressed output is enabled, supported, and not already being done.
156			if (!empty($modSettings['enableCompressedOutput']) && !headers_sent())
157			{
158			// If zlib is being used, turn off output compression.
159			if (ini_get('zlib.output_compression') >= 1 \|\| ini_get('output_handler') == 'ob_gzhandler')
160			$modSettings['enableCompressedOutput'] = 0;
161			else
162			{
163			@ob_end_clean();
			0 ignored issues – show Security Best Practice introduced 2015-12-08 21:59 UTC by Report Bug Copy Issue Report Show Similar Issues like this It seems like you do not handle an error condition here. This can introduce security issues, and is generally not recommended. If you suppress an error, we recommend checking for the error condition explicitly: // For example instead of @mkdir($dir); // Better use if (@mkdir($dir) === false) { throw new \RuntimeException('The directory '.$dir.' could not be created.'); } Loading history...
164			ob_start('ob_gzhandler');
165			}
166			}
167
168			// Register error & exception handlers.
169			Errors::instance()->register_handlers();
170
171			// Start the session. (assuming it hasn't already been.)
172			loadSession();
173
174			// Restore post data if we are revalidating OpenID.
175			if (isset($_GET['openid_restore_post']) && !empty($_SESSION['openid']['saved_data'][$_GET['openid_restore_post']]['post']) && empty($_POST))
176			{
177			$_POST = $_SESSION['openid']['saved_data'][$_GET['openid_restore_post']]['post'];
178			unset($_SESSION['openid']['saved_data'][$_GET['openid_restore_post']]);
179			}
180
181			// Pre-dispatch
182			elk_main();
183
184			// Call obExit specially; we're coming from the main area ;).
185			obExit(null, null, true);
186
187			/**
188			* The main dispatcher.
189			* This delegates to each area.
190			*/
191			function elk_main()
			0 ignored issues – show Coding Style introduced 2015-12-08 21:59 UTC by Report Bug Copy Issue Report Show Similar Issues like this `elk_main` uses the super-global variable `$_REQUEST` which is generally not recommended. Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: // Bad class Router { public function generate($path) { return $_SERVER['HOST'].$path; } } // Better class Router { private $host; public function __construct($host) { $this->host = $host; } public function generate($path) { return $this->host.$path; } } class Controller { public function myAction(Request $request) { // Instead of $page = isset($_GET['page']) ? intval($_GET['page']) : 1; // Better (assuming you use the Symfony2 request) $page = $request->query->get('page', 1); } } Loading history...
192			{
193			global $modSettings, $user_info, $topic, $board_info, $context, $maintenance;
194
195			// A safer way to work with our form globals
196			$_req = HttpReq::instance();
197
198			// Special case: session keep-alive, output a transparent pixel.
199			if ($_req->getQuery('action') === 'keepalive')
200			{
201			header('Content-Type: image/gif');
202			die("\x47\x49\x46\x38\x39\x61\x01\x00\x01\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x21\xF9\x04\x01\x00\x00\x00\x00\x2C\x00\x00\x00\x00\x01\x00\x01\x00\x00\x02\x02\x44\x01\x00\x3B");
			0 ignored issues – show Coding Style Compatibility introduced 2015-12-08 21:59 UTC by Report Bug Copy Issue Report Show Similar Issues like this The function elk_main() contains an exit expression. An exit expression should only be used in rare cases. For example, if you write a short command line script. In most cases however, using an `exit` expression makes the code untestable and often causes incompatibilities with other libraries. Thus, unless you are absolutely sure it is required here, we recommend to refactor your code to avoid its usage. Loading history...
203			}
204
205			// We should set our security headers now.
206			frameOptionsHeader();
207			securityOptionsHeader();
208
209			// Load the user's cookie (or set as guest) and load their settings.
210			loadUserSettings();
211
212			// Load the current board's information.
213			loadBoard();
214
215			// Load the current user's permissions.
216			loadPermissions();
217
218			// Load BadBehavior before we go much further
219			loadBadBehavior();
220
221			// Attachments don't require the entire theme to be loaded.
222			if ($_req->getQuery('action') === 'dlattach' && (!empty($modSettings['allow_guestAccess']) && $user_info['is_guest']) && (empty($maintenance) \|\| allowedTo('admin_forum')))
223			detectBrowser();
224			// Load the current theme. (note that ?theme=1 will also work, may be used for guest theming.)
225			else
226			loadTheme();
227
228			// The parser is not a DIC just yet
229			loadBBCParsers();
230
231			// Check if the user should be disallowed access.
232			is_not_banned();
233
234			// If we are in a topic and don't have permission to approve it then duck out now.
235			if (!empty($topic) && empty($board_info['cur_topic_approved']) && !allowedTo('approve_posts') && ($user_info['id'] != $board_info['cur_topic_starter'] \|\| $user_info['is_guest']))
236			Errors::instance()->fatal_lang_error('not_a_topic', false);
237
238			$no_stat_actions = array('dlattach', 'jsoption', 'requestmembers', 'jslocale', 'xmlpreview', 'suggest', '.xml', 'xmlhttp', 'verificationcode', 'viewquery', 'viewadminfile');
239			call_integration_hook('integrate_pre_log_stats', array(&$no_stat_actions));
240
241			// Do some logging, unless this is an attachment, avatar, toggle of editor buttons, theme option, XML feed etc.
242			if (empty($_REQUEST['action']) \|\| !in_array($_REQUEST['action'], $no_stat_actions)
243			\|\| (!empty($_REQUEST['sa']) && !in_array($_REQUEST['sa'], $no_stat_actions)))
244			{
245			// I see you!
246			writeLog();
247
248			// Track forum statistics and hits...?
249			if (!empty($modSettings['hitStats']))
250			trackStats(array('hits' => '+'));
251			}
252			unset($no_stat_actions);
253
254			// What shall we do?
255			$dispatcher = new Site_Dispatcher();
256
257			// Show where we came from, and go
258			$context['site_action'] = $dispatcher->site_action();
259			$context['site_action'] = !empty($context['site_action']) ? $context['site_action'] : (isset($_REQUEST['action']) ? $_REQUEST['action'] : '');
260			$dispatcher->dispatch();
261			}

elkarte / Elkarte

Pull Request — development (#2330)

index.php (4 issues)

Labels

Severity

Introduced By

Upgrade to new PHP Analysis Engine

General Strategies to prevent injection

Duplication Side-by-Side

Filter issues like