From: Tim Düsterhus <duesterhus@woltlab.com>
Date: Tue, 23 Feb 2021 14:14:32 +0000 (+0100)
Subject: Merge branch '5.3'
X-Git-Tag: 5.4.0_Alpha_1~235
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=26577a4e7b5e17466e289e691cb99d6c61519342;p=GitHub%2FWoltLab%2FWCF.git

Merge branch '5.3'
---

26577a4e7b5e17466e289e691cb99d6c61519342
diff --cc wcfsetup/install/files/lib/data/user/object/watch/UserObjectWatchAction.class.php
index afc58cac16,77ce4ade08..dda2b6090b
--- a/wcfsetup/install/files/lib/data/user/object/watch/UserObjectWatchAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/object/watch/UserObjectWatchAction.class.php
@@@ -10,225 -8,192 +10,225 @@@ use wcf\system\WCF
  
  /**
   * Executes watched object-related actions.
 - * 
 - * @author	Alexander Ebert
 - * @copyright	2001-2019 WoltLab GmbH
 - * @license	GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
 - * @package	WoltLabSuite\Core\Data\User\Object\Watch
 - * 
 - * @method	UserObjectWatch			create()
 - * @method	UserObjectWatchEditor[]		getObjects()
 - * @method	UserObjectWatchEditor		getSingleObject()
 + *
 + * @author  Alexander Ebert
 + * @copyright   2001-2019 WoltLab GmbH
 + * @license GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
 + * @package WoltLabSuite\Core\Data\User\Object\Watch
 + *
 + * @method  UserObjectWatch         create()
 + * @method  UserObjectWatchEditor[]     getObjects()
 + * @method  UserObjectWatchEditor       getSingleObject()
   */
 -class UserObjectWatchAction extends AbstractDatabaseObjectAction {
 -	/**
 -	 * object type object
 -	 * @var	\wcf\data\object\type\ObjectType
 -	 */
 -	protected $objectType = null;
 -	
 -	/**
 -	 * user object watch object
 -	 * @var	UserObjectWatch
 -	 */
 -	protected $userObjectWatch = null;
 -	
 -	/**
 -	 * Validates parameters to manage a subscription.
 -	 */
 -	public function validateManageSubscription() {
 -		$this->readInteger('objectID');
 -		$this->readString('objectType');
 -		
 -		// validate object type
 -		$this->objectType = ObjectTypeCache::getInstance()->getObjectTypeByName('com.woltlab.wcf.user.objectWatch', $this->parameters['objectType']);
 -		if ($this->objectType === null) {
 -			throw new UserInputException('objectType');
 -		}
 -		
 -		// validate object id
 -		$this->objectType->getProcessor()->validateObjectID($this->parameters['objectID']);
 -		
 -		// get existing subscription
 -		$this->userObjectWatch = UserObjectWatch::getUserObjectWatch($this->objectType->objectTypeID, WCF::getUser()->userID, $this->parameters['objectID']);
 -	}
 -	
 -	/**
 -	 * Returns a form to manage a subscription.
 -	 * 
 -	 * @return	array
 -	 */
 -	public function manageSubscription() {
 -		WCF::getTPL()->assign([
 -			'objectType' => $this->objectType,
 -			'userObjectWatch' => $this->userObjectWatch
 -		]);
 -		
 -		return [
 -			'objectID' => $this->parameters['objectID'],
 -			'objectType' => $this->parameters['objectType'],
 -			'template' => WCF::getTPL()->fetch('manageSubscription')
 -		];
 -	}
 -	
 -	/**
 -	 * Validates parameters to save subscription state.
 -	 */
 -	public function validateSaveSubscription() {
 -		$this->readBoolean('enableNotification');
 -		$this->readBoolean('subscribe');
 -		
 -		$this->validateManageSubscription();
 -	}
 -	
 -	/**
 -	 * Saves subscription state.
 -	 */
 -	public function saveSubscription() {
 -		// subscribe
 -		if ($this->parameters['subscribe']) {
 -			// newly subscribed
 -			if ($this->userObjectWatch === null) {
 -				UserObjectWatchEditor::createOrIgnore([
 -					'notification' => $this->parameters['enableNotification'] ? 1 : 0,
 -					'objectID' => $this->parameters['objectID'],
 -					'objectTypeID' => $this->objectType->objectTypeID,
 -					'userID' => WCF::getUser()->userID
 -				]);
 -			}
 -			else if ($this->userObjectWatch->notification != $this->parameters['enableNotification']) {
 -				// update notification type
 -				$editor = new UserObjectWatchEditor($this->userObjectWatch);
 -				$editor->update([
 -					'notification' => $this->parameters['enableNotification'] ? 1 : 0
 -				]);
 -			}
 -			
 -			// reset user storage
 -			$this->objectType->getProcessor()->resetUserStorage([WCF::getUser()->userID]);
 -		}
 -		else if ($this->userObjectWatch !== null) {
 -			// unsubscribe
 -			$editor = new UserObjectWatchEditor($this->userObjectWatch);
 -			$editor->delete();
 -			
 -			// reset user storage
 -			$this->objectType->getProcessor()->resetUserStorage([WCF::getUser()->userID]);
 -		}
 -		
 -		return [
 -			'objectID' => $this->parameters['objectID'],
 -			'objectType' => $this->parameters['objectType'],
 -			'subscribe' => $this->parameters['subscribe']
 -		];
 -	}
 -	
 -	/**
 -	 * Adds a subscription.
 -	 */
 -	public function subscribe() {
 -		$objectType = ObjectTypeCache::getInstance()->getObjectTypeByName('com.woltlab.wcf.user.objectWatch', $this->parameters['data']['objectType']);
 -		
 -		UserObjectWatchEditor::create([
 -			'userID' => WCF::getUser()->userID,
 -			'objectID' => intval($this->parameters['data']['objectID']),
 -			'objectTypeID' => $objectType->objectTypeID,
 -			'notification' => !empty($this->parameters['enableNotification']) ? 1 : 0
 -		]);
 -		
 -		// reset user storage
 -		$objectType->getProcessor()->resetUserStorage([WCF::getUser()->userID]);
 -	}
 -	
 -	/**
 -	 * Removes a subscription.
 -	 */
 -	public function unsubscribe() {
 -		$objectType = ObjectTypeCache::getInstance()->getObjectTypeByName('com.woltlab.wcf.user.objectWatch', $this->parameters['data']['objectType']);
 -		
 -		if ($this->userObjectWatch !== null) $userObjectWatch = $this->userObjectWatch;
 -		else {
 -			$userObjectWatch = UserObjectWatch::getUserObjectWatch($objectType->objectTypeID, WCF::getUser()->userID, intval($this->parameters['data']['objectID']));
 -		}
 -		$editor = new UserObjectWatchEditor($userObjectWatch);
 -		$editor->delete();
 -		
 -		// reset user storage
 -		$objectType->getProcessor()->resetUserStorage([WCF::getUser()->userID]);
 -	}
 -	
 -	/**
 -	 * Validates the subscribe action.
 -	 */
 -	protected function __validateSubscribe() {
 -		$this->readInteger('objectID', false, 'data');
 -		$this->readString('objectType', false, 'data');
 -		
 -		// validate object type
 -		$objectType = ObjectTypeCache::getInstance()->getObjectTypeByName('com.woltlab.wcf.user.objectWatch', $this->parameters['data']['objectType']);
 -		if ($objectType === null) {
 -			throw new UserInputException('objectType');
 -		}
 -		
 -		// validate object id
 -		$objectType->getProcessor()->validateObjectID(intval($this->parameters['data']['objectID']));
 -		
 -		// get existing subscription
 -		$this->userObjectWatch = UserObjectWatch::getUserObjectWatch($objectType->objectTypeID, WCF::getUser()->userID, intval($this->parameters['data']['objectID']));
 -	}
 -	
 -	/**
 -	 * Validates the subscribe action.
 -	 */
 -	public function validateSubscribe() {
 -		$this->__validateSubscribe();
 -		
 -		if ($this->userObjectWatch !== null) {
 -			throw new PermissionDeniedException();
 -		}
 -	}
 -	
 -	/**
 -	 * Validates the unsubscribe action.
 -	 */
 -	public function validateUnsubscribe() {
 -		$this->__validateSubscribe();
 -		
 -		if ($this->userObjectWatch === null) {
 -			throw new PermissionDeniedException();
 -		}
 -	}
 +class UserObjectWatchAction extends AbstractDatabaseObjectAction
 +{
 +    /**
 +     * object type object
 +     * @var \wcf\data\object\type\ObjectType
 +     */
 +    protected $objectType;
 +
 +    /**
 +     * user object watch object
 +     * @var UserObjectWatch
 +     */
 +    protected $userObjectWatch;
 +
 +    /**
 +     * Validates parameters to manage a subscription.
 +     */
 +    public function validateManageSubscription()
 +    {
 +        $this->readInteger('objectID');
 +        $this->readString('objectType');
 +
 +        // validate object type
 +        $this->objectType = ObjectTypeCache::getInstance()->getObjectTypeByName(
 +            'com.woltlab.wcf.user.objectWatch',
 +            $this->parameters['objectType']
 +        );
 +        if ($this->objectType === null) {
 +            throw new UserInputException('objectType');
 +        }
 +
 +        // validate object id
 +        $this->objectType->getProcessor()->validateObjectID($this->parameters['objectID']);
 +
 +        // get existing subscription
 +        $this->userObjectWatch = UserObjectWatch::getUserObjectWatch(
 +            $this->objectType->objectTypeID,
 +            WCF::getUser()->userID,
 +            $this->parameters['objectID']
 +        );
 +    }
 +
 +    /**
 +     * Returns a form to manage a subscription.
 +     *
 +     * @return  array
 +     */
 +    public function manageSubscription()
 +    {
 +        WCF::getTPL()->assign([
 +            'objectType' => $this->objectType,
 +            'userObjectWatch' => $this->userObjectWatch,
 +        ]);
 +
 +        return [
 +            'objectID' => $this->parameters['objectID'],
 +            'objectType' => $this->parameters['objectType'],
 +            'template' => WCF::getTPL()->fetch('manageSubscription'),
 +        ];
 +    }
 +
 +    /**
 +     * Validates parameters to save subscription state.
 +     */
 +    public function validateSaveSubscription()
 +    {
 +        $this->readBoolean('enableNotification');
 +        $this->readBoolean('subscribe');
 +
 +        $this->validateManageSubscription();
 +    }
 +
 +    /**
 +     * Saves subscription state.
 +     */
 +    public function saveSubscription()
 +    {
 +        // subscribe
 +        if ($this->parameters['subscribe']) {
 +            // newly subscribed
 +            if ($this->userObjectWatch === null) {
-                 UserObjectWatchEditor::create([
++                UserObjectWatchEditor::createOrIgnore([
 +                    'notification' => $this->parameters['enableNotification'] ? 1 : 0,
 +                    'objectID' => $this->parameters['objectID'],
 +                    'objectTypeID' => $this->objectType->objectTypeID,
 +                    'userID' => WCF::getUser()->userID,
 +                ]);
 +            } elseif ($this->userObjectWatch->notification != $this->parameters['enableNotification']) {
 +                // update notification type
 +                $editor = new UserObjectWatchEditor($this->userObjectWatch);
 +                $editor->update([
 +                    'notification' => $this->parameters['enableNotification'] ? 1 : 0,
 +                ]);
 +            }
 +
 +            // reset user storage
 +            $this->objectType->getProcessor()->resetUserStorage([WCF::getUser()->userID]);
 +        } elseif ($this->userObjectWatch !== null) {
 +            // unsubscribe
 +            $editor = new UserObjectWatchEditor($this->userObjectWatch);
 +            $editor->delete();
 +
 +            // reset user storage
 +            $this->objectType->getProcessor()->resetUserStorage([WCF::getUser()->userID]);
 +        }
 +
 +        return [
 +            'objectID' => $this->parameters['objectID'],
 +            'objectType' => $this->parameters['objectType'],
 +            'subscribe' => $this->parameters['subscribe'],
 +        ];
 +    }
 +
 +    /**
 +     * Adds a subscription.
 +     */
 +    public function subscribe()
 +    {
 +        $objectType = ObjectTypeCache::getInstance()->getObjectTypeByName(
 +            'com.woltlab.wcf.user.objectWatch',
 +            $this->parameters['data']['objectType']
 +        );
 +
 +        UserObjectWatchEditor::create([
 +            'userID' => WCF::getUser()->userID,
 +            'objectID' => \intval($this->parameters['data']['objectID']),
 +            'objectTypeID' => $objectType->objectTypeID,
 +            'notification' => !empty($this->parameters['enableNotification']) ? 1 : 0,
 +        ]);
 +
 +        // reset user storage
 +        $objectType->getProcessor()->resetUserStorage([WCF::getUser()->userID]);
 +    }
 +
 +    /**
 +     * Removes a subscription.
 +     */
 +    public function unsubscribe()
 +    {
 +        $objectType = ObjectTypeCache::getInstance()->getObjectTypeByName(
 +            'com.woltlab.wcf.user.objectWatch',
 +            $this->parameters['data']['objectType']
 +        );
 +
 +        if ($this->userObjectWatch !== null) {
 +            $userObjectWatch = $this->userObjectWatch;
 +        } else {
 +            $userObjectWatch = UserObjectWatch::getUserObjectWatch(
 +                $objectType->objectTypeID,
 +                WCF::getUser()->userID,
 +                \intval($this->parameters['data']['objectID'])
 +            );
 +        }
 +        $editor = new UserObjectWatchEditor($userObjectWatch);
 +        $editor->delete();
 +
 +        // reset user storage
 +        $objectType->getProcessor()->resetUserStorage([WCF::getUser()->userID]);
 +    }
 +
 +    /**
 +     * Validates the subscribe action.
 +     */
 +    protected function __validateSubscribe()
 +    {
 +        $this->readInteger('objectID', false, 'data');
 +        $this->readString('objectType', false, 'data');
 +
 +        // validate object type
 +        $objectType = ObjectTypeCache::getInstance()->getObjectTypeByName(
 +            'com.woltlab.wcf.user.objectWatch',
 +            $this->parameters['data']['objectType']
 +        );
 +        if ($objectType === null) {
 +            throw new UserInputException('objectType');
 +        }
 +
 +        // validate object id
 +        $objectType->getProcessor()->validateObjectID(\intval($this->parameters['data']['objectID']));
 +
 +        // get existing subscription
 +        $this->userObjectWatch = UserObjectWatch::getUserObjectWatch(
 +            $objectType->objectTypeID,
 +            WCF::getUser()->userID,
 +            \intval($this->parameters['data']['objectID'])
 +        );
 +    }
 +
 +    /**
 +     * Validates the subscribe action.
 +     */
 +    public function validateSubscribe()
 +    {
 +        $this->__validateSubscribe();
 +
 +        if ($this->userObjectWatch !== null) {
 +            throw new PermissionDeniedException();
 +        }
 +    }
 +
 +    /**
 +     * Validates the unsubscribe action.
 +     */
 +    public function validateUnsubscribe()
 +    {
 +        $this->__validateSubscribe();
 +
 +        if ($this->userObjectWatch === null) {
 +            throw new PermissionDeniedException();
 +        }
 +    }
  }
diff --cc wcfsetup/install/files/lib/util/ExceptionLogUtil.class.php
index 5c9898b2d9,161d4615fd..a76d919d89
--- a/wcfsetup/install/files/lib/util/ExceptionLogUtil.class.php
+++ b/wcfsetup/install/files/lib/util/ExceptionLogUtil.class.php
@@@ -7,122 -5,117 +7,126 @@@ use wcf\system\Regex
  
  /**
   * Contains helper functions to process the Exception log.
 - * 
 - * @author	Tim Duesterhus
 - * @copyright	2001-2019 WoltLab GmbH
 - * @license	GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
 - * @package	WoltLabSuite\Core\Util
 - * @since	5.2
 + *
 + * @author  Tim Duesterhus
 + * @copyright   2001-2019 WoltLab GmbH
 + * @license GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
 + * @package WoltLabSuite\Core\Util
 + * @since   5.2
   */
 -final class ExceptionLogUtil {
 -	/**
 -	 * Splits the given string of Exceptions into an array.
 -	 * 
 -	 * @param	string		$contents
 -	 * @return	string[]
 -	 */
 -	public static function splitLog($contents) {
 -		// 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);
 -		
 -		if (empty($contents)) {
 -			return [];
 -		}
 -		
 -		// even items become keys, odd items become values
 -		return array_merge(...array_map(
 -			function($v) {
 -				return [$v[0] => $v[1]];
 -			},
 -			array_chunk($contents, 2)
 -		));
 -	}
 -	
 -	/**
 -	 * Parses the given log entry.
 -	 * 
 -	 * @param	string		$entry
 -	 * @return	mixed[]
 -	 */
 -	public static function parseException($entry) {
 -		static $regex = null;
 -		static $chainRegex = null;
 -		if ($regex === null || $chainRegex === null) {
 -			$regex = new Regex("(?P<date>[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<message>.*?)\s*\n".
 -			"PHP version: (?P<phpVersion>.*?)\s*\n".
 -			"WoltLab Suite version: (?P<wcfVersion>.*?)\s*\n".
 -			"Request URI: (?P<requestURI>.*?)\s*\n".
 -			"Referrer: (?P<referrer>.*?)\s*\n".
 -			"User Agent: (?P<userAgent>.*?)\s*\n".
 -			"Peak Memory Usage: (?<peakMemory>\d+)/(?<maxMemory>(?:\d+|-1))\s*\n".
 -			"(?<chain>======\n".
 -			".*)", Regex::DOT_ALL);
 -			$chainRegex = new Regex("======\n".
 -			"Error Class: (?P<class>.*?)\s*\n".
 -			"Error Message: (?P<message>.*?)\s*\n".
 -			"Error Code: (?P<code>[a-zA-Z0-9]+)\s*\n".
 -			"File: (?P<file>.*?) \((?P<line>\d+)\)\s*\n".
 -			"Extra Information: (?P<information>(?:-|[a-zA-Z0-9+/]+={0,2}))\s*\n".
 -			"Stack Trace: (?P<stack>\[[^\n]+\])", Regex::DOT_ALL);
 -		}
 -		
 -		if (!$regex->match($entry)) {
 -			throw new \InvalidArgumentException('The given entry is malformed.');
 -		}
 -		$matches = $regex->getMatches();
 -		$chainRegex->match($matches['chain'], true, Regex::ORDER_MATCH_BY_SET);
 -		
 -		$chainMatches = array_map(function ($item) {
 -			if ($item['information'] === '-') {
 -				$item['information'] = null;
 -			}
 -			else {
 -				try {
 -					$item['information'] = unserialize(base64_decode($item['information']), ['allowed_classes' => false]);
 -				}
 -				catch (SystemException $e) {
 -					throw new \InvalidArgumentException('The additional information section of the given entry is malformed.', 0, $e);
 -				}
 -			}
 -			
 -			try {
 -				$item['stack'] = JSON::decode($item['stack']);
 -			}
 -			catch (SystemException $e) {
 -				throw new \InvalidArgumentException('The stack trace of the given entry is malformed.', 0, $e);
 -			}
 -			
 -			return $item;
 -		}, $chainRegex->getMatches());
 -		
 -		$matches['stackHash'] = sha1(implode("\0", array_map(function ($item) {
 -			$result = "";
 -			foreach ($item['stack'] as $stack) {
 -				$result .= $stack['file']."\t".$stack['line']."\t".$stack['class'].$stack['type'].$stack['function']."\n";
 -			}
 -			return $result;
 -		}, $chainMatches)));
 -		
 -		$matches['date'] = strtotime($matches['date']);
 -		$matches['chain'] = $chainMatches;
 -		
 -		return $matches;
 -	}
 -	
 -	/**
 -	 * Forbid creation of ExceptionLogUtil objects.
 -	 */
 -	private function __construct() {
 -		// does nothing
 -	}
 +final class ExceptionLogUtil
 +{
 +    /**
 +     * Splits the given string of Exceptions into an array.
 +     *
 +     * @param string $contents
 +     * @return  string[]
 +     */
 +    public static function splitLog($contents)
 +    {
 +        // 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);
 +
++        if (empty($contents)) {
++            return [];
++        }
++
 +        // even items become keys, odd items become values
 +        return \array_merge(...\array_map(
 +            static function ($v) {
 +                return [$v[0] => $v[1]];
 +            },
 +            \array_chunk($contents, 2)
 +        ));
 +    }
 +
 +    /**
 +     * Parses the given log entry.
 +     *
 +     * @param string $entry
 +     * @return  mixed[]
 +     */
 +    public static function parseException($entry)
 +    {
 +        static $regex = null;
 +        static $chainRegex = null;
 +        if ($regex === null || $chainRegex === null) {
 +            $regex = new Regex("(?P<date>[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<message>.*?)\\s*\n"
 +                . "PHP version: (?P<phpVersion>.*?)\\s*\n"
 +                . "WoltLab Suite version: (?P<wcfVersion>.*?)\\s*\n"
 +                . "Request URI: (?P<requestURI>.*?)\\s*\n"
 +                . "Referrer: (?P<referrer>.*?)\\s*\n"
 +                . "User Agent: (?P<userAgent>.*?)\\s*\n"
 +                . "Peak Memory Usage: (?<peakMemory>\\d+)/(?<maxMemory>(?:\\d+|-1))\\s*\n"
 +                . "(?<chain>======\n"
 +                . ".*)", Regex::DOT_ALL);
 +            $chainRegex = new Regex("======\n"
 +                . "Error Class: (?P<class>.*?)\\s*\n"
 +                . "Error Message: (?P<message>.*?)\\s*\n"
 +                . "Error Code: (?P<code>[a-zA-Z0-9]+)\\s*\n"
 +                . "File: (?P<file>.*?) \\((?P<line>\\d+)\\)\\s*\n"
 +                . "Extra Information: (?P<information>(?:-|[a-zA-Z0-9+/]+={0,2}))\\s*\n"
 +                . "Stack Trace: (?P<stack>\\[[^\n]+\\])", Regex::DOT_ALL);
 +        }
 +
 +        if (!$regex->match($entry)) {
 +            throw new \InvalidArgumentException('The given entry is malformed.');
 +        }
 +        $matches = $regex->getMatches();
 +        $chainRegex->match($matches['chain'], true, Regex::ORDER_MATCH_BY_SET);
 +
 +        $chainMatches = \array_map(static function ($item) {
 +            if ($item['information'] === '-') {
 +                $item['information'] = null;
 +            } else {
 +                try {
 +                    $item['information'] = \unserialize(
 +                        \base64_decode($item['information']),
 +                        ['allowed_classes' => false]
 +                    );
 +                } catch (SystemException $e) {
 +                    throw new \InvalidArgumentException(
 +                        'The additional information section of the given entry is malformed.',
 +                        0,
 +                        $e
 +                    );
 +                }
 +            }
 +
 +            try {
 +                $item['stack'] = JSON::decode($item['stack']);
 +            } catch (SystemException $e) {
 +                throw new \InvalidArgumentException('The stack trace of the given entry is malformed.', 0, $e);
 +            }
 +
 +            return $item;
 +        }, $chainRegex->getMatches());
 +
 +        $matches['stackHash'] = \sha1(\implode("\0", \array_map(static function ($item) {
 +            $result = "";
 +            foreach ($item['stack'] as $stack) {
 +                $result .= $stack['file'] . "\t" . $stack['line'] . "\t" . $stack['class'] . $stack['type'] . $stack['function'] . "\n";
 +            }
 +
 +            return $result;
 +        }, $chainMatches)));
 +
 +        $matches['date'] = \strtotime($matches['date']);
 +        $matches['chain'] = $chainMatches;
 +
 +        return $matches;
 +    }
 +
 +    /**
 +     * Forbid creation of ExceptionLogUtil objects.
 +     */
 +    private function __construct()
 +    {
 +        // does nothing
 +    }
  }