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381 lines
10 KiB
381 lines
10 KiB
<?php
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declare(strict_types=1);
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
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* @author Bart Visscher <bartv@thisnet.nl>
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* @author Bernhard Posselt <dev@bernhard-posselt.com>
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* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Joas Schilling <coding@schilljs.com>
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* @author Julius Härtl <jus@bitgrid.net>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Olivier Paroz <github@oparoz.com>
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* @author Robin Appelman <robin@icewind.nl>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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* @author Victor Dubiniuk <dubiniuk@owncloud.com>
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*
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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namespace OC;
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use OCP\Log\IDataLogger;
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use function array_merge;
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use InterfaSys\LogNormalizer\Normalizer;
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use OC\Log\ExceptionSerializer;
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use OCP\ILogger;
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use OCP\Log\IFileBased;
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use OCP\Log\IWriter;
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use OCP\Support\CrashReport\IRegistry;
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/**
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* logging utilities
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*
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* This is a stand in, this should be replaced by a Psr\Log\LoggerInterface
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* compatible logger. See https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md
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* for the full interface specification.
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*
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* MonoLog is an example implementing this interface.
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*/
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class Log implements ILogger, IDataLogger {
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/** @var IWriter */
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private $logger;
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/** @var SystemConfig */
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private $config;
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/** @var boolean|null cache the result of the log condition check for the request */
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private $logConditionSatisfied = null;
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/** @var Normalizer */
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private $normalizer;
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/** @var IRegistry */
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private $crashReporters;
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/**
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* @param IWriter $logger The logger that should be used
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* @param SystemConfig $config the system config object
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* @param Normalizer|null $normalizer
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* @param IRegistry|null $registry
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*/
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public function __construct(IWriter $logger, SystemConfig $config = null, $normalizer = null, IRegistry $registry = null) {
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// FIXME: Add this for backwards compatibility, should be fixed at some point probably
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if ($config === null) {
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$config = \OC::$server->getSystemConfig();
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}
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$this->config = $config;
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$this->logger = $logger;
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if ($normalizer === null) {
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$this->normalizer = new Normalizer();
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} else {
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$this->normalizer = $normalizer;
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}
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$this->crashReporters = $registry;
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}
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/**
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* System is unusable.
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*
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* @param string $message
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* @param array $context
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* @return void
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*/
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public function emergency(string $message, array $context = []) {
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$this->log(ILogger::FATAL, $message, $context);
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}
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/**
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* Action must be taken immediately.
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*
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* Example: Entire website down, database unavailable, etc. This should
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* trigger the SMS alerts and wake you up.
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*
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* @param string $message
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* @param array $context
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* @return void
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*/
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public function alert(string $message, array $context = []) {
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$this->log(ILogger::ERROR, $message, $context);
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}
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/**
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* Critical conditions.
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*
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* Example: Application component unavailable, unexpected exception.
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*
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* @param string $message
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* @param array $context
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* @return void
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*/
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public function critical(string $message, array $context = []) {
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$this->log(ILogger::ERROR, $message, $context);
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}
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/**
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* Runtime errors that do not require immediate action but should typically
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* be logged and monitored.
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*
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* @param string $message
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* @param array $context
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* @return void
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*/
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public function error(string $message, array $context = []) {
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$this->log(ILogger::ERROR, $message, $context);
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}
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/**
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* Exceptional occurrences that are not errors.
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*
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* Example: Use of deprecated APIs, poor use of an API, undesirable things
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* that are not necessarily wrong.
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*
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* @param string $message
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* @param array $context
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* @return void
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*/
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public function warning(string $message, array $context = []) {
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$this->log(ILogger::WARN, $message, $context);
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}
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/**
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* Normal but significant events.
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*
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* @param string $message
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* @param array $context
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* @return void
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*/
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public function notice(string $message, array $context = []) {
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$this->log(ILogger::INFO, $message, $context);
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}
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/**
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* Interesting events.
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*
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* Example: User logs in, SQL logs.
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*
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* @param string $message
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* @param array $context
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* @return void
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*/
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public function info(string $message, array $context = []) {
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$this->log(ILogger::INFO, $message, $context);
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}
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/**
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* Detailed debug information.
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*
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* @param string $message
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* @param array $context
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* @return void
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*/
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public function debug(string $message, array $context = []) {
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$this->log(ILogger::DEBUG, $message, $context);
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}
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/**
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* Logs with an arbitrary level.
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*
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* @param int $level
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* @param string $message
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* @param array $context
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* @return void
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*/
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public function log(int $level, string $message, array $context = []) {
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$minLevel = $this->getLogLevel($context);
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array_walk($context, [$this->normalizer, 'format']);
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$app = $context['app'] ?? 'no app in context';
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// interpolate $message as defined in PSR-3
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$replace = [];
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foreach ($context as $key => $val) {
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$replace['{' . $key . '}'] = $val;
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}
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$message = strtr($message, $replace);
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try {
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if ($level >= $minLevel) {
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$this->writeLog($app, $message, $level);
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if ($this->crashReporters !== null) {
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$messageContext = array_merge(
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$context,
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[
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'level' => $level
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]
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);
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$this->crashReporters->delegateMessage($message, $messageContext);
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}
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} else {
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if ($this->crashReporters !== null) {
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$this->crashReporters->delegateBreadcrumb($message, 'log', $context);
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}
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}
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} catch (\Throwable $e) {
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// make sure we dont hard crash if logging fails
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}
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}
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private function getLogLevel($context) {
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$logCondition = $this->config->getValue('log.condition', []);
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/**
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* check for a special log condition - this enables an increased log on
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* a per request/user base
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*/
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if ($this->logConditionSatisfied === null) {
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// default to false to just process this once per request
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$this->logConditionSatisfied = false;
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if (!empty($logCondition)) {
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// check for secret token in the request
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if (isset($logCondition['shared_secret'])) {
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$request = \OC::$server->getRequest();
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if ($request->getMethod() === 'PUT' &&
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strpos($request->getHeader('Content-Type'), 'application/x-www-form-urlencoded') === false &&
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strpos($request->getHeader('Content-Type'), 'application/json') === false) {
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$logSecretRequest = '';
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} else {
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$logSecretRequest = $request->getParam('log_secret', '');
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}
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// if token is found in the request change set the log condition to satisfied
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if ($request && hash_equals($logCondition['shared_secret'], $logSecretRequest)) {
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$this->logConditionSatisfied = true;
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}
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}
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// check for user
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if (isset($logCondition['users'])) {
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$user = \OC::$server->getUserSession()->getUser();
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// if the user matches set the log condition to satisfied
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if ($user !== null && in_array($user->getUID(), $logCondition['users'], true)) {
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$this->logConditionSatisfied = true;
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}
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}
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}
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}
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// if log condition is satisfied change the required log level to DEBUG
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if ($this->logConditionSatisfied) {
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return ILogger::DEBUG;
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}
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if (isset($context['app'])) {
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$app = $context['app'];
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/**
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* check log condition based on the context of each log message
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* once this is met -> change the required log level to debug
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*/
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if (!empty($logCondition)
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&& isset($logCondition['apps'])
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&& in_array($app, $logCondition['apps'], true)) {
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return ILogger::DEBUG;
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}
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}
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return min($this->config->getValue('loglevel', ILogger::WARN), ILogger::FATAL);
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}
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/**
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* Logs an exception very detailed
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*
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* @param \Exception|\Throwable $exception
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* @param array $context
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* @return void
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* @since 8.2.0
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*/
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public function logException(\Throwable $exception, array $context = []) {
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$app = $context['app'] ?? 'no app in context';
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$level = $context['level'] ?? ILogger::ERROR;
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$serializer = new ExceptionSerializer();
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$data = $serializer->serializeException($exception);
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$data['CustomMessage'] = $context['message'] ?? '--';
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$minLevel = $this->getLogLevel($context);
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array_walk($context, [$this->normalizer, 'format']);
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try {
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if ($level >= $minLevel) {
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if (!$this->logger instanceof IFileBased) {
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$data = json_encode($data, JSON_PARTIAL_OUTPUT_ON_ERROR | JSON_UNESCAPED_SLASHES);
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}
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$this->writeLog($app, $data, $level);
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}
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$context['level'] = $level;
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if (!is_null($this->crashReporters)) {
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$this->crashReporters->delegateReport($exception, $context);
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}
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} catch (\Throwable $e) {
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// make sure we dont hard crash if logging fails
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}
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}
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public function logData(string $message, array $data, array $context = []): void {
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$app = $context['app'] ?? 'no app in context';
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$level = $context['level'] ?? ILogger::ERROR;
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$minLevel = $this->getLogLevel($context);
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array_walk($context, [$this->normalizer, 'format']);
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try {
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if ($level >= $minLevel) {
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$data['message'] = $message;
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if (!$this->logger instanceof IFileBased) {
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$data = json_encode($data, JSON_PARTIAL_OUTPUT_ON_ERROR | JSON_UNESCAPED_SLASHES);
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}
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$this->writeLog($app, $data, $level);
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}
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$context['level'] = $level;
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} catch (\Throwable $e) {
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// make sure we dont hard crash if logging fails
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}
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}
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/**
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* @param string $app
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* @param string|array $entry
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* @param int $level
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*/
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protected function writeLog(string $app, $entry, int $level) {
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$this->logger->write($app, $entry, $level);
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}
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public function getLogPath():string {
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if ($this->logger instanceof IFileBased) {
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return $this->logger->getLogFilePath();
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}
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throw new \RuntimeException('Log implementation has no path');
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}
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}
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