[GitHub/WoltLab/WCF.git] / wcfsetup / install / files / lib / core.functions.php

<?php
/**
 * @author	Marcel Werk
 * @copyright	2001-2016 WoltLab GmbH
 * @license	GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
 * @package	com.woltlab.wcf
 * @category	Community Framework
 */
namespace {
	use wcf\system\WCF;

	// set exception handler
	set_exception_handler([WCF::class, 'handleException']);
	// set php error handler
	set_error_handler([WCF::class, 'handleError'], E_ALL);
	// set shutdown function
	register_shutdown_function([WCF::class, 'destruct']);
	// set autoload function
	spl_autoload_register([WCF::class, 'autoload']);

	// define escape string shortcut
	function escapeString($string) {
		return WCF::getDB()->escapeString($string);
	}
	
	/**
	 * Helper method to output debug data for all passed variables,
	 * uses `print_r()` for arrays and objects, `var_dump()` otherwise.
	 */
	function wcfDebug() {
		echo "<pre>";
		
		$args = func_get_args();
		$length = count($args);
		if ($length === 0) {
			echo "ERROR: No arguments provided.<hr>";
		}
		else {
			for ($i = 0; $i < $length; $i++) {
				$arg = $args[$i];
				
				echo "<h2>Argument {$i} (" . gettype($arg) . ")</h2>";
				
				if (is_array($arg) || is_object($arg)) {
					print_r($arg);
				}
				else {
					var_dump($arg);
				}
				
				echo "<hr>";
			}
		}
		
		$backtrace = debug_backtrace();
		
		// output call location to help finding these debug outputs again
		echo "wcfDebug() called in {$backtrace[0]['file']} on line {$backtrace[0]['line']}";
		
		echo "</pre>";
		
		exit;
	}

	// define DOCUMENT_ROOT on IIS if not set
	if (PHP_EOL == "\r\n") {
		if (!isset($_SERVER['DOCUMENT_ROOT']) && isset($_SERVER['SCRIPT_FILENAME'])) {
			$_SERVER['DOCUMENT_ROOT'] = str_replace( '\\', '/', substr($_SERVER['SCRIPT_FILENAME'], 0, 0 - strlen($_SERVER['PHP_SELF'])));
		}
		if (!isset($_SERVER['DOCUMENT_ROOT']) && isset($_SERVER['PATH_TRANSLATED'])) {
			$_SERVER['DOCUMENT_ROOT'] = str_replace( '\\', '/', substr(str_replace('\\\\', '\\', $_SERVER['PATH_TRANSLATED']), 0, 0 - strlen($_SERVER['PHP_SELF'])));
		}

		if (!isset($_SERVER['REQUEST_URI'])) {
			$_SERVER['REQUEST_URI'] = substr($_SERVER['PHP_SELF'], 1);
			if (isset($_SERVER['QUERY_STRING'])) {
				$_SERVER['REQUEST_URI'] .= '?' . $_SERVER['QUERY_STRING'];
			}
		}
	}
}

// @codingStandardsIgnoreStart
namespace wcf\functions\exception {
	use wcf\system\WCF;
	use wcf\system\exception\IExtraInformationException;
	use wcf\system\exception\SystemException;
	use wcf\util\FileUtil;
	use wcf\util\StringUtil;

	function logThrowable($e, &$logFile = null) {
		if ($logFile === null) $logFile = WCF_DIR . 'log/' . gmdate('Y-m-d', TIME_NOW) . '.txt';
		touch($logFile);
		
		// don't forget to update ExceptionLogViewPage, when changing the log file format
		/** @noinspection PhpUndefinedMethodInspection */
		$message = gmdate('r', TIME_NOW)."\n".
			'Message: '.str_replace("\n", ' ', $e->getMessage())."\n".
			'PHP version: '.phpversion()."\n".
			'WCF version: '.WCF_VERSION."\n".
			'Request URI: '.(isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : '')."\n".
			'Referrer: '.(isset($_SERVER['HTTP_REFERER']) ? str_replace("\n", ' ', $_SERVER['HTTP_REFERER']) : '')."\n".
			'User Agent: '.(isset($_SERVER['HTTP_USER_AGENT']) ? str_replace("\n", ' ', $_SERVER['HTTP_USER_AGENT']) : '')."\n".
			'Peak Memory Usage: '.memory_get_peak_usage().'/'.FileUtil::getMemoryLimit()."\n";
		/** @noinspection PhpUndefinedMethodInspection */
		do {
			/** @noinspection PhpUndefinedMethodInspection */
			$message .= "======\n".
			'Error Class: '.get_class($e)."\n".
			'Error Message: '.str_replace("\n", ' ', $e->getMessage())."\n".
			'Error Code: '.intval($e->getCode())."\n".
			'File: '.str_replace("\n", ' ', $e->getFile()).' ('.$e->getLine().')'."\n".
			'Extra Information: '.($e instanceof IExtraInformationException ? base64_encode(serialize($e->getExtraInformation())) : '-')."\n".
			'Stack Trace: '.base64_encode(serialize(array_map(function ($item) {
				$item['args'] = array_map(function ($item) {
					switch (gettype($item)) {
						case 'object':
							return get_class($item);
						case 'array':
							return array_map(function () {
								return '[redacted]';
							}, $item);
						default:
							return $item;
					}
				}, $item['args']);
				
				return $item;
			}, sanitizeStacktrace($e, true))))."\n";
		}
		while ($e = $e->getPrevious());
		
		// calculate Exception-ID
		$exceptionID = sha1($message);
		$entry = "<<<<<<<<".$exceptionID."<<<<\n".$message."<<<<\n\n";
		
		file_put_contents($logFile, $entry, FILE_APPEND);
		return $exceptionID;
	}

	function printThrowable($e) {
		$exceptionID = logThrowable($e, $logFile);
		
		$exceptionTitle = $exceptionSubtitle = $exceptionExplanation = '';
		$logFile = sanitizePath($logFile);
		try {
			if (WCF::getLanguage() !== null) {
				$exceptionTitle = WCF::getLanguage()->get('wcf.global.exception.title', true);
				$exceptionSubtitle = str_replace('{$exceptionID}', $exceptionID, WCF::getLanguage()->get('wcf.global.exception.subtitle', true));
				$exceptionExplanation = str_replace('{$logFile}', $logFile, WCF::getLanguage()->get('wcf.global.exception.explanation', true));
			}
		}
		catch (\Exception $e) {
			// ignore
		}
		catch (\Throwable $e) {
			// ignore
		}
		
		if (!$exceptionTitle || !$exceptionSubtitle || !$exceptionExplanation) {
			// one or more failed, fallback to english
			$exceptionTitle = 'An error has occured';
			$exceptionSubtitle = 'Internal error code: <span class="exceptionInlineCodeWrapper"><span class="exceptionInlineCode">'.$exceptionID.'</span></span>';
			$exceptionExplanation = <<<EXPLANATION
<p class="exceptionSubtitle">What happened?</p>
<p class="exceptionText">An error has occured while trying to handle your request and execution has been terminated. Please forward the above error code to the site administrator.</p>
<p class="exceptionText">&nbsp;</p> <!-- required to ensure spacing after copy & paste -->
<p class="exceptionText">
	The error code can be used by an administrator to lookup the full error message in the Administration Control Panel via “Logs » Errors”.
	In addition the error has been written to the log file located at <span class="exceptionInlineCodeWrapper"><span class="exceptionInlineCode">{$logFile}</span></span> and can be accessed with a FTP program or similar.
</p>
<p class="exceptionText">&nbsp;</p> <!-- required to ensure spacing after copy & paste -->
<p class="exceptionText">Notice: The error code was randomly generated and has no use beyond looking up the full message.</p>
EXPLANATION;

		}
		
		/*
		 * A notice on the HTML used below:
		 * 
		 * It might appear a bit weird to use <p> all over the place where semantically
		 * other elements would fit in way better. The reason behind this is that we avoid
		 * inheriting unwanted styles (e.g. exception displayed in an overlay) and that
		 * the output needs to be properly readable when copied & pasted somewhere.
		 * 
		 * Besides the visual appearance, the output was built to provide a maximum of
		 * compatibility and readability when pasted somewhere else, e.g. a WYSIWYG editor
		 * without the potential of messing up the formatting and thus harming the readability.
		 */
	?><!DOCTYPE html>
	<html>
		<head>
			<?php if (!defined('EXCEPTION_PRIVACY') || EXCEPTION_PRIVACY !== 'private') { ?>
			<title>Fatal Error: <?php echo StringUtil::encodeHTML($e->getMessage()); ?></title>
			<?php } else { ?>
			<title>Fatal Error</title>
			<?php } ?>
			<meta charset="utf-8">
			<meta name="viewport" content="width=device-width, initial-scale=1">
			<style>
				.exceptionBody {
					margin: 0;
					padding: 0;
				}
				
				.exceptionContainer {
					box-sizing: border-box;
					font-family: 'Segoe UI', 'Lucida Grande', 'Helvetica Neue', Helvetica, Arial, sans-serif;
					font-size: 14px;
					padding-bottom: 20px;
				}
				
				.exceptionContainer * {
					box-sizing: inherit;
					color: #000;
					line-height: 1.5em;
					margin: 0;
					padding: 0;
				}
				
				.exceptionHeader {
					background-color: rgb(44, 62, 80);
					padding: 30px 0;
				}
				
				.exceptionTitle {
					color: #fff;
					font-size: 28px;
					font-weight: 300;
				}
				
				.exceptionErrorCode {
					color: #fff;
					margin-top: .5em;
				}
				
				.exceptionErrorCode .exceptionInlineCode {
					background-color: rgb(52, 73, 94);
					border-radius: 3px;
					color: #fff;
					font-family: monospace;
					padding: 3px 10px;
					white-space: nowrap;
				}
				
				.exceptionSubtitle {
					border-bottom: 1px solid rgb(238, 238, 238);
					color: rgb(44, 62, 80);
					font-size: 24px;
					font-weight: 300;
					margin-bottom: 15px;
					padding-bottom: 10px;
				}
				
				.exceptionContainer > .exceptionBoundary {
					margin-top: 30px;
				}
				
				.exceptionText .exceptionInlineCodeWrapper {
					border: 1px solid rgb(169, 169, 169);
					border-radius: 3px;
					padding: 2px 5px;
				}
				
				.exceptionText .exceptionInlineCode {
					font-family: monospace;
					white-space: nowrap;
				}
				
				.exceptionFieldTitle {
					color: rgb(59, 109, 169);
				}
				
				.exceptionFieldTitle .exceptionColon {
					/* hide colon in browser, but will be visible after copy & paste */
					opacity: 0;
				}
				
				.exceptionFieldValue {
					font-size: 18px;
					min-height: 1.5em;
				}
				
				.exceptionSystemInformation,
				.exceptionErrorDetails,
				.exceptionStacktrace {
					list-style-type: none;
				}
				
				.exceptionSystemInformation > li:not(:first-child),
				.exceptionErrorDetails > li:not(:first-child) {
					margin-top: 10px;
				}
				
				.exceptionStacktrace {
					display: block;
					margin-top: 5px;
					overflow: auto;
					padding-bottom: 20px;
				}
				
				.exceptionStacktraceFile,
				.exceptionStacktraceFile span,
				.exceptionStacktraceCall,
				.exceptionStacktraceCall span {
					font-family: monospace !important;
					white-space: nowrap !important;
				}
				
				.exceptionStacktraceCall + .exceptionStacktraceFile {
					margin-top: 5px;
				}
				
				.exceptionStacktraceCall {
					padding-left: 40px;
				}
				
				.exceptionStacktraceCall,
				.exceptionStacktraceCall span {
					color: rgb(102, 102, 102) !important;
					font-size: 13px !important;
				}
				
				/* mobile */
				@media (max-width: 767px) {
					.exceptionBoundary {
						min-width: 320px;
						padding: 0 10px;
					}
					
					.exceptionText .exceptionInlineCodeWrapper {
						display: inline-block;
						overflow: auto;
					}
					
					.exceptionErrorCode .exceptionInlineCode {
						font-size: 13px;
						padding: 2px 5px;
					}
				}
				
				/* desktop */
				@media (min-width: 768px) {
					.exceptionBoundary {
						margin: 0 auto;
						max-width: 1400px;
						min-width: 1200px;
						padding: 0 10px;
					}
					
					.exceptionSystemInformation {
						display: flex;
						flex-wrap: wrap;
					}
					
					.exceptionSystemInformation1,
					.exceptionSystemInformation3,
					.exceptionSystemInformation5 {
						flex: 0 0 200px;
						margin: 0 0 10px 0 !important;
					}
					
					.exceptionSystemInformation2,
					.exceptionSystemInformation4,
					.exceptionSystemInformation6 {
						flex: 0 0 calc(100% - 210px);
						margin: 0 0 10px 10px !important;
						max-width: calc(100% - 210px);
					}
					
					.exceptionSystemInformation1 { order: 1; }
					.exceptionSystemInformation2 { order: 2; }
					.exceptionSystemInformation3 { order: 3; }
					.exceptionSystemInformation4 { order: 4; }
					.exceptionSystemInformation5 { order: 5; }
					.exceptionSystemInformation6 { order: 6; }
					
					.exceptionSystemInformation .exceptionFieldValue {
						overflow: hidden;
						text-overflow: ellipsis;
						white-space: nowrap;
					}
				}
			</style>
		</head>
		<body class="exceptionBody">
			<div class="exceptionContainer">
				<div class="exceptionHeader">
					<div class="exceptionBoundary">
						<p class="exceptionTitle"><?php echo $exceptionTitle; ?></p>
						<p class="exceptionErrorCode"><?php echo str_replace('{$exceptionID}', $exceptionID, $exceptionSubtitle); ?></p>
					</div>
				</div>
				
				<div class="exceptionBoundary">
					<?php echo $exceptionExplanation; ?>
				</div>
				<?php if (!defined('EXCEPTION_PRIVACY') || EXCEPTION_PRIVACY !== 'private') { ?>
					<div class="exceptionBoundary">
						<p class="exceptionSubtitle">System Information</p>
						<ul class="exceptionSystemInformation">
							<li class="exceptionSystemInformation1">
								<p class="exceptionFieldTitle">PHP Version<span class="exceptionColon">:</span></p>
								<p class="exceptionFieldValue"><?php echo StringUtil::encodeHTML(phpversion()); ?></p>
							</li>
							<li class="exceptionSystemInformation3">
								<p class="exceptionFieldTitle">WCF Version<span class="exceptionColon">:</span></p>
								<p class="exceptionFieldValue"><?php echo StringUtil::encodeHTML(WCF_VERSION); ?></p>
							</li>
							<li class="exceptionSystemInformation5">
								<p class="exceptionFieldTitle">Peak Memory Usage<span class="exceptionColon">:</span></p>
								<p class="exceptionFieldValue"><?php echo round(memory_get_peak_usage() / 1024 / 1024, 3); ?>/<?php echo round(FileUtil::getMemoryLimit() / 1024 / 1024, 3); ?> MiB</p>
							</li>
							<li class="exceptionSystemInformation2">
								<p class="exceptionFieldTitle">Request URI<span class="exceptionColon">:</span></p>
								<p class="exceptionFieldValue"><?php if (isset($_SERVER['REQUEST_URI'])) echo StringUtil::encodeHTML($_SERVER['REQUEST_URI']); ?></p>
							</li>
							<li class="exceptionSystemInformation4">
								<p class="exceptionFieldTitle">Referrer<span class="exceptionColon">:</span></p>
								<p class="exceptionFieldValue"><?php if (isset($_SERVER['HTTP_REFERER'])) echo StringUtil::encodeHTML($_SERVER['HTTP_REFERER']); ?></p>
							</li>
							<li class="exceptionSystemInformation6">
								<p class="exceptionFieldTitle">User Agent<span class="exceptionColon">:</span></p>
								<p class="exceptionFieldValue"><?php if (isset($_SERVER['HTTP_USER_AGENT'])) echo StringUtil::encodeHTML($_SERVER['HTTP_USER_AGENT']); ?></p>
							</li>
						</ul>
					</div>
					
					<?php
					$first = true;
					do {
					?>
					<div class="exceptionBoundary">
						<p class="exceptionSubtitle"><?php if (!$e->getPrevious() && !$first) { echo "Original "; } else if ($e->getPrevious() && $first) { echo "Final "; } ?>Error</p>
						<?php if ($e instanceof SystemException && $e->getDescription()) { ?>
							<p class="exceptionText"><?php echo $e->getDescription(); ?></p>
						<?php } ?>
						<ul class="exceptionErrorDetails">
							<li>
								<p class="exceptionFieldTitle">Error Type<span class="exceptionColon">:</span></p>
								<p class="exceptionFieldValue"><?php echo StringUtil::encodeHTML(get_class($e)); ?></p>
							</li>
							<li>
								<p class="exceptionFieldTitle">Error Message<span class="exceptionColon">:</span></p>
								<p class="exceptionFieldValue"><?php echo StringUtil::encodeHTML($e->getMessage()); ?></p>
							</li>
							<?php if ($e->getCode()) { ?>
								<li>
									<p class="exceptionFieldTitle">Error Code<span class="exceptionColon">:</span></p>
									<p class="exceptionFieldValue"><?php echo intval($e->getCode()); ?></p>
								</li>
							<?php } ?>
							<li>
								<p class="exceptionFieldTitle">File<span class="exceptionColon">:</span></p>
								<p class="exceptionFieldValue" style="word-break: break-all"><?php echo StringUtil::encodeHTML(sanitizePath($e->getFile())); ?> (<?php echo $e->getLine(); ?>)</p>
							</li>
							
							<?php
							if ($e instanceof SystemException) {
								ob_start();
								$e->show();
								ob_end_clean();

								$reflection = new \ReflectionClass($e);
								$property = $reflection->getProperty('information');
								$property->setAccessible(true);
								if ($property->getValue($e)) {
									throw new \Exception("Using the 'information' property of SystemException is not supported any more.");
								}
							}
							if ($e instanceof IExtraInformationException) {
								foreach ($e->getExtraInformation() as list($key, $value)) {
									?>
									<li>
										<p class="exceptionFieldTitle"><?php echo StringUtil::encodeHTML($key); ?><span class="exceptionColon">:</span></p>
										<p class="exceptionFieldValue"><?php echo StringUtil::encodeHTML($value); ?></p>
									</li>
									<?php
								}
							}
							?>
							<li>
								<p class="exceptionFieldTitle">Stack Trace<span class="exceptionColon">:</span></p>
								<ul class="exceptionStacktrace">
									<?php
									$trace = sanitizeStacktrace($e);
									for ($i = 0, $max = count($trace); $i < $max; $i++) {
										?>
										<li class="exceptionStacktraceFile"><?php echo '#'.$i.' '.StringUtil::encodeHTML($trace[$i]['file']).' ('.$trace[$i]['line'].')'.':'; ?></li>
										<li class="exceptionStacktraceCall">
										<?php
											echo $trace[$i]['class'].$trace[$i]['type'].$trace[$i]['function'].'(';
											echo implode(', ', array_map(function ($item) {
												switch (gettype($item)) {
													case 'integer':
													case 'double':
														return $item;
													case 'NULL':
														return 'null';
													case 'string':
														return "'".addcslashes(StringUtil::encodeHTML($item), "\\'")."'";
													case 'boolean':
														return $item ? 'true' : 'false';
													case 'array':
														$keys = array_keys($item);
														if (count($keys) > 5) return "[ ".count($keys)." items ]";
														return '[ '.implode(', ', array_map(function ($item) {
															return $item.' => ';
														}, $keys)).']';
													case 'object':
														return get_class($item);
												}
											}, $trace[$i]['args']));
										echo ')</li>';
									}
									?>
								</ul>
							</li>
						</ul>
					</div>
					<?php
					$first = false;
					} while ($e = $e->getPrevious());
					?>
				<?php } ?>
			</div>
		</body>
	</html>
	<?php
	}

	function sanitizeStacktrace($e, $ignorePaths = false) {
		$trace = $e->getTrace();

		return array_map(function ($item) use ($ignorePaths) {
			if (!isset($item['file'])) $item['file'] = '[internal function]';
			if (!isset($item['line'])) $item['line'] = '?';
			if (!isset($item['class'])) $item['class'] = '';
			if (!isset($item['type'])) $item['type'] = '';
			if (!isset($item['args'])) $item['args'] = [];
			
			// strip database credentials
			if (preg_match('~\\\\?wcf\\\\system\\\\database\\\\[a-zA-Z]*Database~', $item['class']) || $item['class'] === 'PDO') {
				if ($item['function'] === '__construct') {
					$item['args'] = array_map(function () {
						return '[redacted]';
					}, $item['args']);
				}
			}
			
			if (!$ignorePaths) {
				$item['args'] = array_map(function ($item) {
					if (!is_string($item)) return $item;
					
					if (preg_match('~^('.preg_quote($_SERVER['DOCUMENT_ROOT'], '~').'|'.preg_quote(WCF_DIR, '~').')~', $item)) {
						$item = sanitizePath($item);
					}

					return $item;
				}, $item['args']);
				
				$item['file'] = sanitizePath($item['file']);
			}
			
			return $item;
		}, $trace);
	}
	
	function sanitizePath($path) {
		if (WCF::debugModeIsEnabled() && defined('EXCEPTION_PRIVACY') && EXCEPTION_PRIVACY === 'public') {
			return $path;
		}
		
		return '*/'.FileUtil::removeTrailingSlash(FileUtil::getRelativePath(WCF_DIR, $path));
	}
}
// @codingStandardsIgnoreEnd
Commit	Line	Data
158bd3ca TD	1	<?php
	2	/**
	3	* @author Marcel Werk
f406809a	4	* @copyright 2001-2016 WoltLab GmbH
158bd3ca TD	5	* @license GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
158bd3ca TD	6	* @package com.woltlab.wcf
0c166126	7	* @category Community Framework
158bd3ca	8	*/
5bc5a7e6 TD	9	namespace {
5bc5a7e6 TD	10	use wcf\system\WCF;
2b6fbe94	11
5bc5a7e6	12	// set exception handler
d82507dc	13	set_exception_handler([WCF::class, 'handleException']);
5bc5a7e6	14	// set php error handler
d82507dc	15	set_error_handler([WCF::class, 'handleError'], E_ALL);
5bc5a7e6	16	// set shutdown function
d82507dc	17	register_shutdown_function([WCF::class, 'destruct']);
5bc5a7e6	18	// set autoload function
d82507dc	19	spl_autoload_register([WCF::class, 'autoload']);
2b6fbe94	20
5bc5a7e6 TD	21	// define escape string shortcut
	22	function escapeString($string) {
	23	return WCF::getDB()->escapeString($string);
	24	}
f406809a AE	25
	26	/**
	27	* Helper method to output debug data for all passed variables,
	28	* uses `print_r()` for arrays and objects, `var_dump()` otherwise.
	29	*/
	30	function wcfDebug() {
	31	echo "<pre>";
	32
	33	$args = func_get_args();
	34	$length = count($args);
	35	if ($length === 0) {
a5cf4a28	36	echo "ERROR: No arguments provided.<hr>";
f406809a AE	37	}
	38	else {
	39	for ($i = 0; $i < $length; $i++) {
	40	$arg = $args[$i];
	41
	42	echo "<h2>Argument {$i} (" . gettype($arg) . ")</h2>";
	43
	44	if (is_array($arg) \|\| is_object($arg)) {
	45	print_r($arg);
	46	}
	47	else {
	48	var_dump($arg);
	49	}
	50
	51	echo "<hr>";
	52	}
	53	}
	54
	55	$backtrace = debug_backtrace();
	56
	57	// output call location to help finding these debug outputs again
	58	echo "wcfDebug() called in {$backtrace[0]['file']} on line {$backtrace[0]['line']}";
	59
	60	echo "</pre>";
	61
	62	exit;
	63	}
2b6fbe94	64
5bc5a7e6 TD	65	// define DOCUMENT_ROOT on IIS if not set
	66	if (PHP_EOL == "\r\n") {
	67	if (!isset($_SERVER['DOCUMENT_ROOT']) && isset($_SERVER['SCRIPT_FILENAME'])) {
	68	$_SERVER['DOCUMENT_ROOT'] = str_replace( '\\', '/', substr($_SERVER['SCRIPT_FILENAME'], 0, 0 - strlen($_SERVER['PHP_SELF'])));
	69	}
	70	if (!isset($_SERVER['DOCUMENT_ROOT']) && isset($_SERVER['PATH_TRANSLATED'])) {
	71	$_SERVER['DOCUMENT_ROOT'] = str_replace( '\\', '/', substr(str_replace('\\\\', '\\', $_SERVER['PATH_TRANSLATED']), 0, 0 - strlen($_SERVER['PHP_SELF'])));
	72	}
2b6fbe94	73
5bc5a7e6 TD	74	if (!isset($_SERVER['REQUEST_URI'])) {
	75	$_SERVER['REQUEST_URI'] = substr($_SERVER['PHP_SELF'], 1);
	76	if (isset($_SERVER['QUERY_STRING'])) {
	77	$_SERVER['REQUEST_URI'] .= '?' . $_SERVER['QUERY_STRING'];
	78	}
	79	}
	80	}
dcb3a44c	81	}
322ced57	82
fc23fa20	83	// @codingStandardsIgnoreStart
5bc5a7e6	84	namespace wcf\functions\exception {
fc23fa20	85	use wcf\system\WCF;
b8e0376c	86	use wcf\system\exception\IExtraInformationException;
5bc5a7e6	87	use wcf\system\exception\SystemException;
5bc5a7e6 TD	88	use wcf\util\FileUtil;
5bc5a7e6 TD	89	use wcf\util\StringUtil;
2b6fbe94	90
76e90abc	91	function logThrowable($e, &$logFile = null) {
8891d4b9	92	if ($logFile === null) $logFile = WCF_DIR . 'log/' . gmdate('Y-m-d', TIME_NOW) . '.txt';
b8149369	93	touch($logFile);
e4499881	94
b8149369	95	// don't forget to update ExceptionLogViewPage, when changing the log file format
e4499881	96	/** @noinspection PhpUndefinedMethodInspection */
b8149369 TD	97	$message = gmdate('r', TIME_NOW)."\n".
	98	'Message: '.str_replace("\n", ' ', $e->getMessage())."\n".
	99	'PHP version: '.phpversion()."\n".
	100	'WCF version: '.WCF_VERSION."\n".
	101	'Request URI: '.(isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : '')."\n".
	102	'Referrer: '.(isset($_SERVER['HTTP_REFERER']) ? str_replace("\n", ' ', $_SERVER['HTTP_REFERER']) : '')."\n".
	103	'User Agent: '.(isset($_SERVER['HTTP_USER_AGENT']) ? str_replace("\n", ' ', $_SERVER['HTTP_USER_AGENT']) : '')."\n".
	104	'Peak Memory Usage: '.memory_get_peak_usage().'/'.FileUtil::getMemoryLimit()."\n";
e4499881	105	/** @noinspection PhpUndefinedMethodInspection */
b8149369	106	do {
e4499881	107	/** @noinspection PhpUndefinedMethodInspection */
b8149369 TD	108	$message .= "======\n".
	109	'Error Class: '.get_class($e)."\n".
	110	'Error Message: '.str_replace("\n", ' ', $e->getMessage())."\n".
	111	'Error Code: '.intval($e->getCode())."\n".
	112	'File: '.str_replace("\n", ' ', $e->getFile()).' ('.$e->getLine().')'."\n".
	113	'Extra Information: '.($e instanceof IExtraInformationException ? base64_encode(serialize($e->getExtraInformation())) : '-')."\n".
	114	'Stack Trace: '.base64_encode(serialize(array_map(function ($item) {
	115	$item['args'] = array_map(function ($item) {
	116	switch (gettype($item)) {
	117	case 'object':
	118	return get_class($item);
	119	case 'array':
	120	return array_map(function () {
	121	return '[redacted]';
	122	}, $item);
	123	default:
	124	return $item;
	125	}
	126	}, $item['args']);
e4499881	127
b8149369 TD	128	return $item;
	129	}, sanitizeStacktrace($e, true))))."\n";
	130	}
	131	while ($e = $e->getPrevious());
e4499881	132
b8149369 TD	133	// calculate Exception-ID
b8149369 TD	134	$exceptionID = sha1($message);
2b6fbe94	135	$entry = "<<<<<<<<".$exceptionID."<<<<\n".$message."<<<<\n\n";
e4499881	136
b8149369 TD	137	file_put_contents($logFile, $entry, FILE_APPEND);
	138	return $exceptionID;
	139	}
2b6fbe94	140
5bc5a7e6	141	function printThrowable($e) {
76e90abc	142	$exceptionID = logThrowable($e, $logFile);
614e2466 AE	143
	144	$exceptionTitle = $exceptionSubtitle = $exceptionExplanation = '';
	145	$logFile = sanitizePath($logFile);
	146	try {
04edc2ff AE	147	if (WCF::getLanguage() !== null) {
	148	$exceptionTitle = WCF::getLanguage()->get('wcf.global.exception.title', true);
	149	$exceptionSubtitle = str_replace('{$exceptionID}', $exceptionID, WCF::getLanguage()->get('wcf.global.exception.subtitle', true));
	150	$exceptionExplanation = str_replace('{$logFile}', $logFile, WCF::getLanguage()->get('wcf.global.exception.explanation', true));
	151	}
614e2466 AE	152	}
	153	catch (\Exception $e) {
	154	// ignore
	155	}
	156	catch (\Throwable $e) {
	157	// ignore
	158	}
	159
	160	if (!$exceptionTitle \|\| !$exceptionSubtitle \|\| !$exceptionExplanation) {
	161	// one or more failed, fallback to english
	162	$exceptionTitle = 'An error has occured';
a7eb5dda	163	$exceptionSubtitle = 'Internal error code: <span class="exceptionInlineCodeWrapper"><span class="exceptionInlineCode">'.$exceptionID.'</span></span>';
614e2466 AE	164	$exceptionExplanation = <<<EXPLANATION
	165	<p class="exceptionSubtitle">What happened?</p>
	166	<p class="exceptionText">An error has occured while trying to handle your request and execution has been terminated. Please forward the above error code to the site administrator.</p>
	167	<p class="exceptionText"> </p> <!-- required to ensure spacing after copy & paste -->
	168	<p class="exceptionText">
	169	The error code can be used by an administrator to lookup the full error message in the Administration Control Panel via “Logs » Errors”.
819d7822	170	In addition the error has been written to the log file located at <span class="exceptionInlineCodeWrapper"><span class="exceptionInlineCode">{$logFile}</span></span> and can be accessed with a FTP program or similar.
614e2466 AE	171	</p>
	172	<p class="exceptionText"> </p> <!-- required to ensure spacing after copy & paste -->
	173	<p class="exceptionText">Notice: The error code was randomly generated and has no use beyond looking up the full message.</p>
	174	EXPLANATION;
	175
	176	}
	177
	178	/*
	179	* A notice on the HTML used below:
	180	*
	181	* It might appear a bit weird to use <p> all over the place where semantically
	182	* other elements would fit in way better. The reason behind this is that we avoid
	183	* inheriting unwanted styles (e.g. exception displayed in an overlay) and that
	184	* the output needs to be properly readable when copied & pasted somewhere.
	185	*
	186	* Besides the visual appearance, the output was built to provide a maximum of
	187	* compatibility and readability when pasted somewhere else, e.g. a WYSIWYG editor
	188	* without the potential of messing up the formatting and thus harming the readability.
	189	*/
5bc5a7e6 TD	190	?><!DOCTYPE html>
	191	<html>
	192	<head>
962c9241	193	<?php if (!defined('EXCEPTION_PRIVACY') \|\| EXCEPTION_PRIVACY !== 'private') { ?>
5bc5a7e6 TD	194	<title>Fatal Error: <?php echo StringUtil::encodeHTML($e->getMessage()); ?></title>
	195	<?php } else { ?>
	196	<title>Fatal Error</title>
	197	<?php } ?>
614e2466 AE	198	<meta charset="utf-8">
614e2466 AE	199	<meta name="viewport" content="width=device-width, initial-scale=1">
5bc5a7e6	200	<style>
614e2466 AE	201	.exceptionBody {
	202	margin: 0;
	203	padding: 0;
5bc5a7e6	204	}
614e2466 AE	205
	206	.exceptionContainer {
	207	box-sizing: border-box;
	208	font-family: 'Segoe UI', 'Lucida Grande', 'Helvetica Neue', Helvetica, Arial, sans-serif;
	209	font-size: 14px;
	210	padding-bottom: 20px;
5bc5a7e6	211	}
614e2466 AE	212
	213	.exceptionContainer * {
	214	box-sizing: inherit;
	215	color: #000;
	216	line-height: 1.5em;
	217	margin: 0;
	218	padding: 0;
5bc5a7e6	219	}
614e2466 AE	220
	221	.exceptionHeader {
	222	background-color: rgb(44, 62, 80);
89130385	223	padding: 30px 0;
5bc5a7e6	224	}
614e2466 AE	225
	226	.exceptionTitle {
	227	color: #fff;
	228	font-size: 28px;
	229	font-weight: 300;
5bc5a7e6	230	}
614e2466 AE	231
	232	.exceptionErrorCode {
	233	color: #fff;
	234	margin-top: .5em;
5bc5a7e6	235	}
614e2466 AE	236
	237	.exceptionErrorCode .exceptionInlineCode {
	238	background-color: rgb(52, 73, 94);
	239	border-radius: 3px;
	240	color: #fff;
	241	font-family: monospace;
	242	padding: 3px 10px;
	243	white-space: nowrap;
5bc5a7e6	244	}
614e2466 AE	245
	246	.exceptionSubtitle {
	247	border-bottom: 1px solid rgb(238, 238, 238);
	248	color: rgb(44, 62, 80);
	249	font-size: 24px;
	250	font-weight: 300;
	251	margin-bottom: 15px;
	252	padding-bottom: 10px;
5bc5a7e6	253	}
614e2466 AE	254
	255	.exceptionContainer > .exceptionBoundary {
	256	margin-top: 30px;
5bc5a7e6	257	}
614e2466 AE	258
	259	.exceptionText .exceptionInlineCodeWrapper {
	260	border: 1px solid rgb(169, 169, 169);
	261	border-radius: 3px;
	262	padding: 2px 5px;
5bc5a7e6	263	}
614e2466 AE	264
	265	.exceptionText .exceptionInlineCode {
	266	font-family: monospace;
	267	white-space: nowrap;
5bc5a7e6	268	}
614e2466 AE	269
	270	.exceptionFieldTitle {
	271	color: rgb(59, 109, 169);
5bc5a7e6	272	}
614e2466 AE	273
	274	.exceptionFieldTitle .exceptionColon {
	275	/* hide colon in browser, but will be visible after copy & paste */
	276	opacity: 0;
5bc5a7e6	277	}
614e2466 AE	278
	279	.exceptionFieldValue {
	280	font-size: 18px;
3d8a295e	281	min-height: 1.5em;
614e2466 AE	282	}
	283
	284	.exceptionSystemInformation,
	285	.exceptionErrorDetails,
	286	.exceptionStacktrace {
	287	list-style-type: none;
	288	}
	289
	290	.exceptionSystemInformation > li:not(:first-child),
	291	.exceptionErrorDetails > li:not(:first-child) {
	292	margin-top: 10px;
	293	}
	294
	295	.exceptionStacktrace {
	296	display: block;
	297	margin-top: 5px;
	298	overflow: auto;
	299	padding-bottom: 20px;
	300	}
	301
	302	.exceptionStacktraceFile,
	303	.exceptionStacktraceFile span,
	304	.exceptionStacktraceCall,
	305	.exceptionStacktraceCall span {
	306	font-family: monospace !important;
	307	white-space: nowrap !important;
	308	}
	309
	310	.exceptionStacktraceCall + .exceptionStacktraceFile {
	311	margin-top: 5px;
	312	}
	313
	314	.exceptionStacktraceCall {
	315	padding-left: 40px;
	316	}
	317
	318	.exceptionStacktraceCall,
	319	.exceptionStacktraceCall span {
	320	color: rgb(102, 102, 102) !important;
	321	font-size: 13px !important;
	322	}
	323
	324	/* mobile */
	325	@media (max-width: 767px) {
	326	.exceptionBoundary {
	327	min-width: 320px;
	328	padding: 0 10px;
dd6a2623	329	}
614e2466 AE	330
	331	.exceptionText .exceptionInlineCodeWrapper {
	332	display: inline-block;
	333	overflow: auto;
dd6a2623	334	}
614e2466 AE	335
	336	.exceptionErrorCode .exceptionInlineCode {
	337	font-size: 13px;
	338	padding: 2px 5px;
dd6a2623	339	}
614e2466 AE	340	}
	341
	342	/* desktop */
	343	@media (min-width: 768px) {
	344	.exceptionBoundary {
	345	margin: 0 auto;
	346	max-width: 1400px;
	347	min-width: 1200px;
	348	padding: 0 10px;
	349	}
	350
	351	.exceptionSystemInformation {
	352	display: flex;
	353	flex-wrap: wrap;
	354	}
	355
	356	.exceptionSystemInformation1,
	357	.exceptionSystemInformation3,
	358	.exceptionSystemInformation5 {
	359	flex: 0 0 200px;
	360	margin: 0 0 10px 0 !important;
	361	}
	362
	363	.exceptionSystemInformation2,
	364	.exceptionSystemInformation4,
	365	.exceptionSystemInformation6 {
	366	flex: 0 0 calc(100% - 210px);
	367	margin: 0 0 10px 10px !important;
	368	max-width: calc(100% - 210px);
	369	}
	370
	371	.exceptionSystemInformation1 { order: 1; }
	372	.exceptionSystemInformation2 { order: 2; }
	373	.exceptionSystemInformation3 { order: 3; }
	374	.exceptionSystemInformation4 { order: 4; }
	375	.exceptionSystemInformation5 { order: 5; }
	376	.exceptionSystemInformation6 { order: 6; }
	377
	378	.exceptionSystemInformation .exceptionFieldValue {
	379	overflow: hidden;
	380	text-overflow: ellipsis;
	381	white-space: nowrap;
	382	}
	383	}
	384	</style>
	385	</head>
	386	<body class="exceptionBody">
	387	<div class="exceptionContainer">
	388	<div class="exceptionHeader">
	389	<div class="exceptionBoundary">
	390	<p class="exceptionTitle"><?php echo $exceptionTitle; ?></p>
	391	<p class="exceptionErrorCode"><?php echo str_replace('{$exceptionID}', $exceptionID, $exceptionSubtitle); ?></p>
	392	</div>
	393	</div>
	394
	395	<div class="exceptionBoundary">
	396	<?php echo $exceptionExplanation; ?>
5bc5a7e6	397	</div>
962c9241	398	<?php if (!defined('EXCEPTION_PRIVACY') \|\| EXCEPTION_PRIVACY !== 'private') { ?>
614e2466 AE	399	<div class="exceptionBoundary">
	400	<p class="exceptionSubtitle">System Information</p>
	401	<ul class="exceptionSystemInformation">
	402	<li class="exceptionSystemInformation1">
	403	<p class="exceptionFieldTitle">PHP Version<span class="exceptionColon">:</span></p>
	404	<p class="exceptionFieldValue"><?php echo StringUtil::encodeHTML(phpversion()); ?></p>
	405	</li>
	406	<li class="exceptionSystemInformation3">
	407	<p class="exceptionFieldTitle">WCF Version<span class="exceptionColon">:</span></p>
	408	<p class="exceptionFieldValue"><?php echo StringUtil::encodeHTML(WCF_VERSION); ?></p>
	409	</li>
	410	<li class="exceptionSystemInformation5">
	411	<p class="exceptionFieldTitle">Peak Memory Usage<span class="exceptionColon">:</span></p>
	412	<p class="exceptionFieldValue"><?php echo round(memory_get_peak_usage() / 1024 / 1024, 3); ?>/<?php echo round(FileUtil::getMemoryLimit() / 1024 / 1024, 3); ?> MiB</p>
	413	</li>
	414	<li class="exceptionSystemInformation2">
	415	<p class="exceptionFieldTitle">Request URI<span class="exceptionColon">:</span></p>
	416	<p class="exceptionFieldValue"><?php if (isset($_SERVER['REQUEST_URI'])) echo StringUtil::encodeHTML($_SERVER['REQUEST_URI']); ?></p>
	417	</li>
	418	<li class="exceptionSystemInformation4">
	419	<p class="exceptionFieldTitle">Referrer<span class="exceptionColon">:</span></p>
	420	<p class="exceptionFieldValue"><?php if (isset($_SERVER['HTTP_REFERER'])) echo StringUtil::encodeHTML($_SERVER['HTTP_REFERER']); ?></p>
	421	</li>
	422	<li class="exceptionSystemInformation6">
	423	<p class="exceptionFieldTitle">User Agent<span class="exceptionColon">:</span></p>
	424	<p class="exceptionFieldValue"><?php if (isset($_SERVER['HTTP_USER_AGENT'])) echo StringUtil::encodeHTML($_SERVER['HTTP_USER_AGENT']); ?></p>
	425	</li>
	426	</ul>
5bc5a7e6	427	</div>
614e2466	428
5bc5a7e6 TD	429	<?php
	430	$first = true;
	431	do {
	432	?>
614e2466 AE	433	<div class="exceptionBoundary">
614e2466 AE	434	<p class="exceptionSubtitle"><?php if (!$e->getPrevious() && !$first) { echo "Original "; } else if ($e->getPrevious() && $first) { echo "Final "; } ?>Error</p>
5bc5a7e6	435	<?php if ($e instanceof SystemException && $e->getDescription()) { ?>
614e2466	436	<p class="exceptionText"><?php echo $e->getDescription(); ?></p>
5bc5a7e6	437	<?php } ?>
614e2466	438	<ul class="exceptionErrorDetails">
0b46efcf TD	439	<li>
	440	<p class="exceptionFieldTitle">Error Type<span class="exceptionColon">:</span></p>
	441	<p class="exceptionFieldValue"><?php echo StringUtil::encodeHTML(get_class($e)); ?></p>
	442	</li>
614e2466 AE	443	<li>
	444	<p class="exceptionFieldTitle">Error Message<span class="exceptionColon">:</span></p>
	445	<p class="exceptionFieldValue"><?php echo StringUtil::encodeHTML($e->getMessage()); ?></p>
	446	</li>
	447	<?php if ($e->getCode()) { ?>
	448	<li>
	449	<p class="exceptionFieldTitle">Error Code<span class="exceptionColon">:</span></p>
	450	<p class="exceptionFieldValue"><?php echo intval($e->getCode()); ?></p>
	451	</li>
	452	<?php } ?>
	453	<li>
	454	<p class="exceptionFieldTitle">File<span class="exceptionColon">:</span></p>
	455	<p class="exceptionFieldValue" style="word-break: break-all"><?php echo StringUtil::encodeHTML(sanitizePath($e->getFile())); ?> (<?php echo $e->getLine(); ?>)</p>
	456	</li>
	457
5bc5a7e6 TD	458	<?php
	459	if ($e instanceof SystemException) {
	460	ob_start();
	461	$e->show();
	462	ob_end_clean();
2b6fbe94	463
5bc5a7e6 TD	464	$reflection = new \ReflectionClass($e);
	465	$property = $reflection->getProperty('information');
	466	$property->setAccessible(true);
	467	if ($property->getValue($e)) {
	468	throw new \Exception("Using the 'information' property of SystemException is not supported any more.");
	469	}
	470	}
b8e0376c TD	471	if ($e instanceof IExtraInformationException) {
b8e0376c TD	472	foreach ($e->getExtraInformation() as list($key, $value)) {
614e2466 AE	473	?>
	474	<li>
	475	<p class="exceptionFieldTitle"><?php echo StringUtil::encodeHTML($key); ?><span class="exceptionColon">:</span></p>
	476	<p class="exceptionFieldValue"><?php echo StringUtil::encodeHTML($value); ?></p>
	477	</li>
	478	<?php
b8e0376c TD	479	}
b8e0376c TD	480	}
5bc5a7e6	481	?>
614e2466 AE	482	<li>
	483	<p class="exceptionFieldTitle">Stack Trace<span class="exceptionColon">:</span></p>
	484	<ul class="exceptionStacktrace">
	485	<?php
	486	$trace = sanitizeStacktrace($e);
614e2466 AE	487	for ($i = 0, $max = count($trace); $i < $max; $i++) {
	488	?>
	489	<li class="exceptionStacktraceFile"><?php echo '#'.$i.' '.StringUtil::encodeHTML($trace[$i]['file']).' ('.$trace[$i]['line'].')'.':'; ?></li>
	490	<li class="exceptionStacktraceCall">
	491	<?php
	492	echo $trace[$i]['class'].$trace[$i]['type'].$trace[$i]['function'].'(';
	493	echo implode(', ', array_map(function ($item) {
	494	switch (gettype($item)) {
	495	case 'integer':
	496	case 'double':
	497	return $item;
	498	case 'NULL':
	499	return 'null';
	500	case 'string':
aac60824	501	return "'".addcslashes(StringUtil::encodeHTML($item), "\\'")."'";
614e2466 AE	502	case 'boolean':
	503	return $item ? 'true' : 'false';
	504	case 'array':
	505	$keys = array_keys($item);
	506	if (count($keys) > 5) return "[ ".count($keys)." items ]";
	507	return '[ '.implode(', ', array_map(function ($item) {
	508	return $item.' => ';
	509	}, $keys)).']';
	510	case 'object':
	511	return get_class($item);
	512	}
	513	}, $trace[$i]['args']));
	514	echo ')</li>';
	515	}
	516	?>
	517	</ul>
	518	</li>
	519	</ul>
5bc5a7e6 TD	520	</div>
	521	<?php
	522	$first = false;
	523	} while ($e = $e->getPrevious());
	524	?>
	525	<?php } ?>
	526	</div>
	527	</body>
	528	</html>
	529	<?php
322ced57	530	}
5bc5a7e6 TD	531
	532	function sanitizeStacktrace($e, $ignorePaths = false) {
	533	$trace = $e->getTrace();
2b6fbe94	534
5bc5a7e6	535	return array_map(function ($item) use ($ignorePaths) {
2b6fbe94 TD	536	if (!isset($item['file'])) $item['file'] = '[internal function]';
	537	if (!isset($item['line'])) $item['line'] = '?';
	538	if (!isset($item['class'])) $item['class'] = '';
	539	if (!isset($item['type'])) $item['type'] = '';
335aae2b	540	if (!isset($item['args'])) $item['args'] = [];
2b6fbe94	541
5bc5a7e6	542	// strip database credentials
2b6fbe94 TD	543	if (preg_match('~\\\\?wcf\\\\system\\\\database\\\\[a-zA-Z]*Database~', $item['class']) \|\| $item['class'] === 'PDO') {
	544	if ($item['function'] === '__construct') {
	545	$item['args'] = array_map(function () {
	546	return '[redacted]';
	547	}, $item['args']);
5bc5a7e6 TD	548	}
5bc5a7e6 TD	549	}
390ec505	550
5bc5a7e6 TD	551	if (!$ignorePaths) {
5bc5a7e6 TD	552	$item['args'] = array_map(function ($item) {
b8e0376c	553	if (!is_string($item)) return $item;
390ec505 TD	554
390ec505 TD	555	if (preg_match('~^('.preg_quote($_SERVER['DOCUMENT_ROOT'], '~').'\|'.preg_quote(WCF_DIR, '~').')~', $item)) {
5bc5a7e6 TD	556	$item = sanitizePath($item);
5bc5a7e6 TD	557	}
2b6fbe94	558
390ec505	559	return $item;
5bc5a7e6	560	}, $item['args']);
390ec505	561
2b6fbe94	562	$item['file'] = sanitizePath($item['file']);
5bc5a7e6	563	}
390ec505	564
5bc5a7e6 TD	565	return $item;
5bc5a7e6 TD	566	}, $trace);
322ced57	567	}
390ec505	568
5bc5a7e6	569	function sanitizePath($path) {
962c9241 TD	570	if (WCF::debugModeIsEnabled() && defined('EXCEPTION_PRIVACY') && EXCEPTION_PRIVACY === 'public') {
	571	return $path;
	572	}
390ec505	573
5bc5a7e6	574	return '*/'.FileUtil::removeTrailingSlash(FileUtil::getRelativePath(WCF_DIR, $path));
322ced57 AE	575	}
322ced57 AE	576	}
fc23fa20	577	// @codingStandardsIgnoreEnd