mirror of
https://github.com/nextcloud/server.git
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121 lines
2.9 KiB
PHP
121 lines
2.9 KiB
PHP
<?php
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/**
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* SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
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* SPDX-FileCopyrightText: 2016 ownCloud, Inc.
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* SPDX-License-Identifier: AGPL-3.0-only
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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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protected string $logFile;
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protected int $logFileMode;
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public function __construct(
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string $path,
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string $fallbackPath,
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private SystemConfig $config,
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) {
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parent::__construct($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->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|array $message
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*/
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public function write(string $app, $message, int $level): void {
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$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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*/
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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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public function getLogFilePath():string {
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return $this->logFile;
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}
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}
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