* @package WoltLabSuite\Core\Acp\Page */ class ExceptionLogViewPage extends MultipleLinkPage { /** * @inheritDoc */ public $activeMenuItem = 'wcf.acp.menu.link.log.exception'; /** * @inheritDoc */ public $neededPermissions = ['admin.management.canViewLog']; /** * @inheritDoc */ public $itemsPerPage = 10; /** * given exceptionID * @var string */ public $exceptionID = ''; /** * active logfile * @var string */ public $logFile = ''; /** * available logfiles * @var string[] */ public $logFiles = []; /** * exceptions shown * @var array */ public $exceptions = []; /** * @inheritDoc */ public function readParameters() { parent::readParameters(); if (isset($_REQUEST['exceptionID'])) $this->exceptionID = StringUtil::trim($_REQUEST['exceptionID']); if (isset($_REQUEST['logFile'])) $this->logFile = StringUtil::trim($_REQUEST['logFile']); } /** * @inheritDoc */ public function readData() { AbstractPage::readData(); $fileNameRegex = new Regex('(?:^|/)\d{4}-\d{2}-\d{2}\.txt$'); $this->logFiles = DirectoryUtil::getInstance(WCF_DIR.'log/')->getFiles(SORT_DESC, $fileNameRegex); if ($this->exceptionID) { // search the appropriate file foreach ($this->logFiles as $logFile) { $contents = file_get_contents($logFile); if (mb_strpos($contents, '<<<<<<<<'.$this->exceptionID.'<<<<') !== false) { $fileNameRegex->match($logFile); $matches = $fileNameRegex->getMatches(); $this->logFile = $matches[0]; break; } unset($contents); } if (!isset($contents)) { $this->logFile = ''; return; } } else if ($this->logFile) { if (!$fileNameRegex->match(basename($this->logFile))) throw new IllegalLinkException(); if (!file_exists(WCF_DIR.'log/'.$this->logFile)) throw new IllegalLinkException(); $contents = file_get_contents(WCF_DIR.'log/'.$this->logFile); } else { return; } // unify newlines $contents = StringUtil::unifyNewlines($contents); // split contents $split = new Regex('(?:^|\n<<<<\n\n)(?:<<<<<<<<([a-f0-9]{40})<<<<\n|$)'); $contents = $split->split($contents, Regex::SPLIT_NON_EMPTY_ONLY | Regex::CAPTURE_SPLIT_DELIMITER); // even items become keys, odd items become values try { $this->exceptions = call_user_func_array('array_merge', array_map( function($v) { return [$v[0] => $v[1]]; }, array_chunk($contents, 2) )); } catch (\Exception $e) { // logfile contents are pretty malformed, abort return; } if ($this->exceptionID) $this->searchPage($this->exceptionID); $this->calculateNumberOfPages(); $i = 0; $exceptionRegex = new Regex("(?P[MTWFS][a-z]{2}, \d{1,2} [JFMASOND][a-z]{2} \d{4} \d{2}:\d{2}:\d{2} [+-]\d{4})\s*\n". "Message: (?P.*?)\s*\n". "PHP version: (?P.*?)\s*\n". "WoltLab Suite version: (?P.*?)\s*\n". "Request URI: (?P.*?)\s*\n". "Referrer: (?P.*?)\s*\n". "User Agent: (?P.*?)\s*\n". "Peak Memory Usage: (?\d+)/(?\d+)\s*\n". "(?======\n". ".*)", Regex::DOT_ALL); $chainRegex = new Regex("======\n". "Error Class: (?P.*?)\s*\n". "Error Message: (?P.*?)\s*\n". "Error Code: (?P

\d+)\s*\n".
"File: (?P.*?) \((?P\d+)\)\s*\n".
"Extra Information: (?P(?:-|[a-zA-Z0-9+/]+={0,2}))\s*\n".
"Stack Trace: (?P\[[^\n]+\])", Regex::DOT_ALL);
		
		$isPhp7 = version_compare(PHP_VERSION, '7.0.0') >= 0;
		foreach ($this->exceptions as $key => $val) {
			$i++;
			if ($i < $this->startIndex || $i > $this->endIndex) {
				unset($this->exceptions[$key]);
				continue;
			}
			
			if (!$exceptionRegex->match($val)) {
				unset($this->exceptions[$key]);
				continue;
			}
			$matches = $exceptionRegex->getMatches();
			$chainRegex->match($matches['chain'], true, Regex::ORDER_MATCH_BY_SET);
			
			$chainMatches = array_map(function ($item) use ($isPhp7) {
				if ($item['information'] === '-') $item['information'] = null;
				else {
					if ($isPhp7) {
						$item['information'] = unserialize(base64_decode($item['information']), ['allowed_classes' => false]);
					}
					else {
						$item['information'] = unserialize(base64_decode($item['information']));
					}
				}
				
				$item['stack'] = JSON::decode($item['stack']);
				
				return $item;
			}, $chainRegex->getMatches());
			
			$matches['chain'] = $chainMatches;
			$this->exceptions[$key] = $matches;
		}
	}
	
	/**
	 * @inheritDoc
	 */
	public function countItems() {
		// call countItems event
		EventHandler::getInstance()->fireAction($this, 'countItems');
		
		return count($this->exceptions);
	}
	
	/**
	 * Switches to the page containing the exception with the given ID.
	 * 
	 * @param	string	$exceptionID
	 */
	public function searchPage($exceptionID) {
		$i = 1;
		
		foreach ($this->exceptions as $key => $val) {
			if ($key == $exceptionID) break;
			$i++;
		}
		
		$this->pageNo = ceil($i / $this->itemsPerPage);
	}
	
	/**
	 * @inheritDoc
	 */
	public function assignVariables() {
		parent::assignVariables();
		
		WCF::getTPL()->assign([
			'exceptionID' => $this->exceptionID,
			'logFiles' => array_flip(array_map('basename', $this->logFiles)),
			'logFile' => $this->logFile,
			'exceptions' => $this->exceptions
		]);
	}
}