random_alphabetic_string() - Code Metrics - Inspection of "Merge pull request #1029 from hemberger/session-ty..." - smrealms/smr - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 2b5828...a7a342 )

by Dan

created 2021-03-28 07:22 UTC

random_alphabetic_string() A

↳ Parent: Project

Complexity

Conditions	2
Paths	2

Size

Total Lines	6
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	2
eloc	4
nc	2
nop	1
dl	0
loc	6
rs	10
c	0
b	0
f	0

<?php declare(strict_types=1);

use Smr\Container\DiContainer;

function logException(Throwable $e) : void {
	global $account, $var, $player;
	$message = '';
	$delim = "\n\n-----------\n\n";

	if (is_object($account)) {
		$message .= 'Login: ' . $account->getLogin() . "\n" .
			'Account ID: ' . $account->getAccountID() . "\n" .
			'E-Mail: ' . $account->getEmail() . $delim;
	}
	$message .= 'Error Message: ' . $e . $delim;

	$message .= '$var: ' . var_export($var, true);

	// Don't display passwords input by users in the log message!
	if (isset($_REQUEST['password'])) {
		$_REQUEST['password'] = '*****';
	}
	$message .= "\n\n" . '$_REQUEST: ' . var_export($_REQUEST, true);
	$message .= $delim;

	$message .=
		'User IP: ' . getIpAddress() . "\n" .
		'User Agent: ' . ($_SERVER['HTTP_USER_AGENT'] ?? 'undefined') . "\n" .
		'USING_AJAX: ' . (defined('USING_AJAX') ? var_export(USING_AJAX, true) : 'undefined') . "\n" .
		'URL: ' . (defined('URL') ? URL : 'undefined');

	try {
		if (function_exists('release_lock')) {
			release_lock(); //Try to release lock so they can carry on normally
		}
	} catch (Throwable $ee) {
		$message .= $delim .
					'Releasing Lock Failed' . "\n" .
					'Message: ' . $ee . "\n";
	}

	if (defined('SCRIPT_ID')) {
		$message = 'Script: ' . SCRIPT_ID . $delim . $message . "\n\n";
	}

	// Unconditionally send error message to the log
	error_log($message);

	if (ENABLE_DEBUG) {
		// Display error message on the page (redundant with error_log for CLI)
		if (php_sapi_name() !== 'cli') {
			echo nl2br($message);
		}
		// Skip remaining log methods (too disruptive during development)
		return;
	}

	// Send error message to the in-game auto bugs mailbox
	if (is_object($player) && method_exists($player, 'sendMessageToBox')) {
		$player->sendMessageToBox(BOX_BUGS_AUTO, $message);
	} elseif (is_object($account) && method_exists($account, 'sendMessageToBox')) {
		// Will be logged without a game_id
		$account->sendMessageToBox(BOX_BUGS_AUTO, $message);
	} else {
		// Will be logged without a game_id or sender_id
		SmrAccount::doMessageSendingToBox(0, BOX_BUGS_AUTO, $message, 0);
	}

	// Send error message to e-mail so that we have a permanent record
	if (!empty(BUG_REPORT_TO_ADDRESSES)) {

		$mail = setupMailer();
		$mail->Subject = (defined('PAGE_PREFIX') ? PAGE_PREFIX : '??? ') .
		                 'Automatic Bug Report';
		$mail->setFrom('[email protected]');
		$mail->Body = $message;
		foreach (BUG_REPORT_TO_ADDRESSES as $toAddress) {
			$mail->addAddress($toAddress);
		}
		$mail->send();
	}
}

function handleException(Throwable $e) {
	// The real error message may display sensitive information, so we
	// need to catch any exceptions that are thrown while logging the error.
	try {
		logException($e);
		$errorType = 'Unexpected Error!';
	} catch (Throwable $e) {
		error_log('Exception during logException: ' . $e);
		$errorType = 'This error cannot be automatically reported. Please notify an admin!';
	}

	// If this is an ajax update, we don't really have a way to redirect
	// to an error page at this time.
	if (!ENABLE_DEBUG && (!defined('USING_AJAX') || !USING_AJAX)) {
		header('location: /error.php?msg=' . urlencode($errorType));
	}
}

/**
 * Can be used to convert any type of notice into an exception.
 */
function exception_error_handler($errno, $errstr, $errfile, $errline) {
	throw new ErrorException($errstr, $errno, E_ERROR, $errfile, $errline);
}

function setupMailer() {
	$mail = new \PHPMailer\PHPMailer\PHPMailer(true);
	if (!empty(SMTP_HOSTNAME)) {

		$mail->isSMTP();
		$mail->Host = SMTP_HOSTNAME;
	}
	return $mail;
}

function getIpAddress() {
	foreach (['HTTP_CLIENT_IP', 'HTTP_X_FORWARDED_FOR', 'HTTP_X_FORWARDED', 'HTTP_X_CLUSTER_CLIENT_IP', 'HTTP_FORWARDED_FOR', 'HTTP_FORWARDED', 'REMOTE_ADDR'] as $key) {
		if (array_key_exists($key, $_SERVER) === true) {
			foreach (explode(',', $_SERVER[$key]) as $ip) {
				if (filter_var($ip, FILTER_VALIDATE_IP) !== false) {
					return $ip;
				}
			}
		}
	}
	return 'unknown';
}

/**
 * Wrapper around the floor() builtin for returning an integer type.
 */
function IFloor(float $val) : int {
	return (int)floor($val);
}

/**
 * Wrapper around the ceil() builtin for returning an integer type.
 */
function ICeil(float $val) : int {
	return (int)ceil($val);
}

/**
 * Wrapper around the round() builtin for returning an integer type.
 */
function IRound(float $val) : int {
	return (int)round($val);
}

/**
 * Convert a numeric string to an int with input validation.
 */
function str2int(string $val) : int {
	$result = filter_var($val, FILTER_VALIDATE_INT);
	if ($result === false) {
		throw new Exception('Input value is not an integer: ' . $val);
	}
	return $result;
}

/**
 * Generate a cryptographically strong random hexadecimal string.
 * The requested length must be a multiple of 2.
 */
function random_string(int $length) : string {
	if ($length % 2 != 0) {
		throw new Exception('Length must be a multiple of 2!');
	}
	return bin2hex(random_bytes($length / 2));
}

/**
 * Generate a (non-cryptographic) random alphabetic string.
 * This is slower for longer strings.
 */
function random_alphabetic_string(int $length) : string {
	$result = '';
	for ($i = 0; $i < $length; ++$i) {
		$result .= chr(rand(ord('a'), ord('z')));
	}
	return $result;
}

/**
 * Return the value of a random key from an array.
 */
function array_rand_value(array $arr) : mixed {
	if (empty($arr)) {
		throw new Exception('Cannot pick random value from empty array!');
	}
	return $arr[array_rand($arr)];
}

// Defines all constants
require_once('config.php');

// Set up vendor and class autoloaders
require_once(ROOT . 'vendor/autoload.php');
require_once(LIB . 'autoload.inc.php');
spl_autoload_register('get_class_loc');

// Set up dependency injection container
DiContainer::initializeContainer();


1			<?php declare(strict_types=1);
2
3			use Smr\Container\DiContainer;
4
5			function logException(Throwable $e) : void {
6			global $account, $var, $player;
7			$message = '';
8			$delim = "\n\n-----------\n\n";
9
10			if (is_object($account)) {
11			$message .= 'Login: ' . $account->getLogin() . "\n" .
12			'Account ID: ' . $account->getAccountID() . "\n" .
13			'E-Mail: ' . $account->getEmail() . $delim;
14			}
15			$message .= 'Error Message: ' . $e . $delim;
16
17			$message .= '$var: ' . var_export($var, true);
18
19			// Don't display passwords input by users in the log message!
20			if (isset($_REQUEST['password'])) {
21			$_REQUEST['password'] = '*****';
22			}
23			$message .= "\n\n" . '$_REQUEST: ' . var_export($_REQUEST, true);
24			$message .= $delim;
25
26			$message .=
27			'User IP: ' . getIpAddress() . "\n" .
28			'User Agent: ' . ($_SERVER['HTTP_USER_AGENT'] ?? 'undefined') . "\n" .
29			'USING_AJAX: ' . (defined('USING_AJAX') ? var_export(USING_AJAX, true) : 'undefined') . "\n" .
30			'URL: ' . (defined('URL') ? URL : 'undefined');
31
32			try {
33			if (function_exists('release_lock')) {
34			release_lock(); //Try to release lock so they can carry on normally
35			}
36			} catch (Throwable $ee) {
37			$message .= $delim .
38			'Releasing Lock Failed' . "\n" .
39			'Message: ' . $ee . "\n";
40			}
41
42			if (defined('SCRIPT_ID')) {
43			$message = 'Script: ' . SCRIPT_ID . $delim . $message . "\n\n";
44			}
45
46			// Unconditionally send error message to the log
47			error_log($message);
48
49			if (ENABLE_DEBUG) {
50			// Display error message on the page (redundant with error_log for CLI)
51			if (php_sapi_name() !== 'cli') {
52			echo nl2br($message);
53			}
54			// Skip remaining log methods (too disruptive during development)
55			return;
56			}
57
58			// Send error message to the in-game auto bugs mailbox
59			if (is_object($player) && method_exists($player, 'sendMessageToBox')) {
60			$player->sendMessageToBox(BOX_BUGS_AUTO, $message);
61			} elseif (is_object($account) && method_exists($account, 'sendMessageToBox')) {
62			// Will be logged without a game_id
63			$account->sendMessageToBox(BOX_BUGS_AUTO, $message);
64			} else {
65			// Will be logged without a game_id or sender_id
66			SmrAccount::doMessageSendingToBox(0, BOX_BUGS_AUTO, $message, 0);
67			}
68
69			// Send error message to e-mail so that we have a permanent record
70			if (!empty(BUG_REPORT_TO_ADDRESSES)) {
			0 ignored issues – show introduced 2019-03-02 00:35 UTC by Report Bug Copy Issue Report The condition `empty(BUG_REPORT_TO_ADDRESSES)` is always `true`. Loading history...
71			$mail = setupMailer();
72			$mail->Subject = (defined('PAGE_PREFIX') ? PAGE_PREFIX : '??? ') .
73			'Automatic Bug Report';
74			$mail->setFrom('[email protected]');
75			$mail->Body = $message;
76			foreach (BUG_REPORT_TO_ADDRESSES as $toAddress) {
77			$mail->addAddress($toAddress);
78			}
79			$mail->send();
80			}
81			}
82
83			function handleException(Throwable $e) {
84			// The real error message may display sensitive information, so we
85			// need to catch any exceptions that are thrown while logging the error.
86			try {
87			logException($e);
88			$errorType = 'Unexpected Error!';
89			} catch (Throwable $e) {
90			error_log('Exception during logException: ' . $e);
91			$errorType = 'This error cannot be automatically reported. Please notify an admin!';
92			}
93
94			// If this is an ajax update, we don't really have a way to redirect
95			// to an error page at this time.
96			if (!ENABLE_DEBUG && (!defined('USING_AJAX') \|\| !USING_AJAX)) {
97			header('location: /error.php?msg=' . urlencode($errorType));
98			}
99			}
100
101			/**
102			* Can be used to convert any type of notice into an exception.
103			*/
104			function exception_error_handler($errno, $errstr, $errfile, $errline) {
105			throw new ErrorException($errstr, $errno, E_ERROR, $errfile, $errline);
106			}
107
108			function setupMailer() {
109			$mail = new \PHPMailer\PHPMailer\PHPMailer(true);
110			if (!empty(SMTP_HOSTNAME)) {
			0 ignored issues – show introduced 2019-03-02 00:35 UTC by Report Bug Copy Issue Report The condition `empty(SMTP_HOSTNAME)` is always `false`. Loading history...
111			$mail->isSMTP();
112			$mail->Host = SMTP_HOSTNAME;
113			}
114			return $mail;
115			}
116
117			function getIpAddress() {
118			foreach (['HTTP_CLIENT_IP', 'HTTP_X_FORWARDED_FOR', 'HTTP_X_FORWARDED', 'HTTP_X_CLUSTER_CLIENT_IP', 'HTTP_FORWARDED_FOR', 'HTTP_FORWARDED', 'REMOTE_ADDR'] as $key) {
119			if (array_key_exists($key, $_SERVER) === true) {
120			foreach (explode(',', $_SERVER[$key]) as $ip) {
121			if (filter_var($ip, FILTER_VALIDATE_IP) !== false) {
122			return $ip;
123			}
124			}
125			}
126			}
127			return 'unknown';
128			}
129
130			/**
131			* Wrapper around the floor() builtin for returning an integer type.
132			*/
133			function IFloor(float $val) : int {
134			return (int)floor($val);
135			}
136
137			/**
138			* Wrapper around the ceil() builtin for returning an integer type.
139			*/
140			function ICeil(float $val) : int {
141			return (int)ceil($val);
142			}
143
144			/**
145			* Wrapper around the round() builtin for returning an integer type.
146			*/
147			function IRound(float $val) : int {
148			return (int)round($val);
149			}
150
151			/**
152			* Convert a numeric string to an int with input validation.
153			*/
154			function str2int(string $val) : int {
155			$result = filter_var($val, FILTER_VALIDATE_INT);
156			if ($result === false) {
157			throw new Exception('Input value is not an integer: ' . $val);
158			}
159			return $result;
160			}
161
162			/**
163			* Generate a cryptographically strong random hexadecimal string.
164			* The requested length must be a multiple of 2.
165			*/
166			function random_string(int $length) : string {
167			if ($length % 2 != 0) {
168			throw new Exception('Length must be a multiple of 2!');
169			}
170			return bin2hex(random_bytes($length / 2));
171			}
172
173			/**
174			* Generate a (non-cryptographic) random alphabetic string.
175			* This is slower for longer strings.
176			*/
177			function random_alphabetic_string(int $length) : string {
178			$result = '';
179			for ($i = 0; $i < $length; ++$i) {
180			$result .= chr(rand(ord('a'), ord('z')));
181			}
182			return $result;
183			}
184
185			/**
186			* Return the value of a random key from an array.
187			*/
188			function array_rand_value(array $arr) : mixed {
189			if (empty($arr)) {
190			throw new Exception('Cannot pick random value from empty array!');
191			}
192			return $arr[array_rand($arr)];
193			}
194
195			// Defines all constants
196			require_once('config.php');
197
198			// Set up vendor and class autoloaders
199			require_once(ROOT . 'vendor/autoload.php');
200			require_once(LIB . 'autoload.inc.php');
201			spl_autoload_register('get_class_loc');
202
203			// Set up dependency injection container
204			DiContainer::initializeContainer();
205

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random_alphabetic_string() A

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