nextcloud/lib/private/log.php

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<?php
/**
* Copyright (c) 2013 Bart Visscher <bartv@thisnet.nl>
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* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
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*/
namespace OC;
use \OCP\ILogger;
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/**
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* logging utilities
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*
* This is a stand in, this should be replaced by a Psr\Log\LoggerInterface
* compatible logger. See https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md
* for the full interface specification.
*
* MonoLog is an example implementing this interface.
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*/
class Log implements ILogger {
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private $logger;
/**
* @param string $logger The logger that should be used
*/
public function __construct($logger=null) {
// FIXME: Add this for backwards compatibility, should be fixed at some point probably
if($logger === null) {
$this->logger = 'OC_Log_'.ucfirst(\OC_Config::getValue('log_type', 'owncloud'));
call_user_func(array($this->logger, 'init'));
} else {
$this->logger = $logger;
}
}
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/**
* System is unusable.
*
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* @param string $message
* @param array $context
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*/
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public function emergency($message, array $context = array()) {
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$this->log(\OC_Log::FATAL, $message, $context);
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}
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/**
* Action must be taken immediately.
*
* Example: Entire website down, database unavailable, etc. This should
* trigger the SMS alerts and wake you up.
*
* @param string $message
* @param array $context
*/
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public function alert($message, array $context = array()) {
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$this->log(\OC_Log::ERROR, $message, $context);
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}
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/**
* Critical conditions.
*
* Example: Application component unavailable, unexpected exception.
*
* @param string $message
* @param array $context
*/
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public function critical($message, array $context = array()) {
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$this->log(\OC_Log::ERROR, $message, $context);
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}
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/**
* Runtime errors that do not require immediate action but should typically
* be logged and monitored.
*
* @param string $message
* @param array $context
*/
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public function error($message, array $context = array()) {
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$this->log(\OC_Log::ERROR, $message, $context);
}
/**
* Exceptional occurrences that are not errors.
*
* Example: Use of deprecated APIs, poor use of an API, undesirable things
* that are not necessarily wrong.
*
* @param string $message
* @param array $context
*/
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public function warning($message, array $context = array()) {
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$this->log(\OC_Log::WARN, $message, $context);
}
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/**
* Normal but significant events.
*
* @param string $message
* @param array $context
*/
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public function notice($message, array $context = array()) {
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$this->log(\OC_Log::INFO, $message, $context);
}
/**
* Interesting events.
*
* Example: User logs in, SQL logs.
*
* @param string $message
* @param array $context
*/
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public function info($message, array $context = array()) {
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$this->log(\OC_Log::INFO, $message, $context);
}
/**
* Detailed debug information.
*
* @param string $message
* @param array $context
*/
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public function debug($message, array $context = array()) {
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$this->log(\OC_Log::DEBUG, $message, $context);
}
/**
* Logs with an arbitrary level.
*
* @param mixed $level
* @param string $message
* @param array $context
*/
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public function log($level, $message, array $context = array()) {
if (isset($context['app'])) {
$app = $context['app'];
} else {
$app = 'no app in context';
}
// interpolate $message as defined in PSR-3
$replace = array();
foreach ($context as $key => $val) {
$replace['{' . $key . '}'] = $val;
}
// interpolate replacement values into the message and return
$message = strtr($message, $replace);
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$logger = $this->logger;
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call_user_func(array($logger, 'write'), $app, $message, $level);
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}
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}