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158 lines
4.4 KiB
158 lines
4.4 KiB
<?php
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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 Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author duritong <peter.meier+github@immerda.ch>
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* @author Georg Ehrke <oc.list@georgehrke.com>
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* @author J0WI <J0WI@users.noreply.github.com>
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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 Lukas Reschke <lukas@statuscode.ch>
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* @author Michael Gapczynski <GapczynskiM@gmail.com>
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* @author Morris Jobke <hey@morrisjobke.de>
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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 Roland Tapken <roland@bitarbeiter.net>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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* @author Thomas Pulzer <t.pulzer@kniel.de>
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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\Log;
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use OC\SystemConfig;
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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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/**
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* logging utilities
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*
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* Log is saved at data/nextcloud.log (on default)
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*/
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class File extends LogDetails implements IWriter, IFileBased {
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/** @var string */
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protected $logFile;
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/** @var int */
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protected $logFileMode;
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/** @var SystemConfig */
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private $config;
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public function __construct(string $path, string $fallbackPath = '', SystemConfig $config) {
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parent::__construct($config);
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$this->logFile = $path;
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if (!file_exists($this->logFile)) {
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if (
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(
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!is_writable(dirname($this->logFile))
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|| !touch($this->logFile)
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)
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&& $fallbackPath !== ''
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) {
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$this->logFile = $fallbackPath;
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}
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}
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$this->config = $config;
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$this->logFileMode = $config->getValue('logfilemode', 0640);
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}
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/**
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* write a message in the log
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* @param string $app
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* @param string|array $message
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* @param int $level
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*/
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public function write(string $app, $message, int $level) {
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$entry = $this->logDetailsAsJSON($app, $message, $level);
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$handle = @fopen($this->logFile, 'a');
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if ($this->logFileMode > 0 && is_file($this->logFile) && (fileperms($this->logFile) & 0777) != $this->logFileMode) {
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@chmod($this->logFile, $this->logFileMode);
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}
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if ($handle) {
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fwrite($handle, $entry."\n");
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fclose($handle);
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} else {
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// Fall back to error_log
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error_log($entry);
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}
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if (php_sapi_name() === 'cli-server') {
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if (!\is_string($message)) {
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$message = json_encode($message);
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}
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error_log($message, 4);
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}
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}
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/**
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* get entries from the log in reverse chronological order
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* @param int $limit
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* @param int $offset
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* @return array
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*/
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public function getEntries(int $limit=50, int $offset=0):array {
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$minLevel = $this->config->getValue("loglevel", ILogger::WARN);
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$entries = [];
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$handle = @fopen($this->logFile, 'rb');
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if ($handle) {
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fseek($handle, 0, SEEK_END);
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$pos = ftell($handle);
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$line = '';
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$entriesCount = 0;
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$lines = 0;
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// Loop through each character of the file looking for new lines
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while ($pos >= 0 && ($limit === null ||$entriesCount < $limit)) {
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fseek($handle, $pos);
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$ch = fgetc($handle);
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if ($ch == "\n" || $pos == 0) {
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if ($line != '') {
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// Add the first character if at the start of the file,
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// because it doesn't hit the else in the loop
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if ($pos == 0) {
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$line = $ch.$line;
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}
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$entry = json_decode($line);
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// Add the line as an entry if it is passed the offset and is equal or above the log level
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if ($entry->level >= $minLevel) {
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$lines++;
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if ($lines > $offset) {
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$entries[] = $entry;
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$entriesCount++;
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}
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}
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$line = '';
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}
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} else {
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$line = $ch.$line;
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}
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$pos--;
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}
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fclose($handle);
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}
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return $entries;
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}
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/**
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* @return string
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*/
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public function getLogFilePath():string {
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return $this->logFile;
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}
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}
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