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<?php
/**
* @copyright Copyright (c) 2019 Julius Härtl <jus@bitgrid.net>
*
* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
* @author Julius Härtl <jus@bitgrid.net>
* @author Thomas Citharel <nextcloud@tcit.fr>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OC\Log;
use OC\SystemConfig;
abstract class LogDetails {
/** @var SystemConfig */
private $config;
public function __construct(SystemConfig $config) {
$this->config = $config;
}
public function logDetails(string $app, $message, int $level): array {
// default to ISO8601
$format = $this->config->getValue('logdateformat', \DateTimeInterface::ATOM);
$logTimeZone = $this->config->getValue('logtimezone', 'UTC');
try {
$timezone = new \DateTimeZone($logTimeZone);
} catch (\Exception $e) {
$timezone = new \DateTimeZone('UTC');
}
$time = \DateTime::createFromFormat("U.u", number_format(microtime(true), 4, ".", ""));
if ($time === false) {
$time = new \DateTime('now', $timezone);
} else {
// apply timezone if $time is created from UNIX timestamp
$time->setTimezone($timezone);
}
$request = \OC::$server->getRequest();
$reqId = $request->getId();
$remoteAddr = $request->getRemoteAddress();
// remove username/passwords from URLs before writing the to the log file
$time = $time->format($format);
$url = ($request->getRequestUri() !== '') ? $request->getRequestUri() : '--';
$method = is_string($request->getMethod()) ? $request->getMethod() : '--';
if ($this->config->getValue('installed', false)) {
$user = \OC_User::getUser() ? \OC_User::getUser() : '--';
} else {
$user = '--';
}
$userAgent = $request->getHeader('User-Agent');
if ($userAgent === '') {
$userAgent = '--';
}
$version = $this->config->getValue('version', '');
$entry = compact(
'reqId',
'level',
'time',
'remoteAddr',
'user',
'app',
'method',
'url',
'message',
'userAgent',
'version'
);
if (is_array($message)) {
// Exception messages are extracted and the exception is put into a separate field
// anything else modern is split to 'message' (string) and
// data (array) fields
if (array_key_exists('Exception', $message)) {
$entry['exception'] = $message;
$entry['message'] = $message['CustomMessage'] !== '--' ? $message['CustomMessage'] : $message['Message'];
} else {
$entry['message'] = $message['message'] ?? '(no message provided)';
unset($message['message']);
$entry['data'] = $message;
}
}
return $entry;
}
public function logDetailsAsJSON(string $app, $message, int $level): string {
$entry = $this->logDetails($app, $message, $level);
// PHP's json_encode only accept proper UTF-8 strings, loop over all
// elements to ensure that they are properly UTF-8 compliant or convert
// them manually.
foreach ($entry as $key => $value) {
if (is_string($value)) {
$testEncode = json_encode($value, JSON_UNESCAPED_SLASHES);
if ($testEncode === false) {
$entry[$key] = utf8_encode($value);
}
}
}
return json_encode($entry, JSON_PARTIAL_OUTPUT_ON_ERROR | JSON_UNESCAPED_SLASHES);
}
}
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