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<?php |
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/* |
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You may not change or alter any portion of this comment or credits |
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of supporting developers from this source code or any supporting source code |
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which is considered copyrighted (c) material of the original comment or credit authors. |
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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. |
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*/ |
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namespace Xoops\Core; |
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use Psr\Log\LogLevel; |
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use Psr\Log\LoggerInterface; |
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/** |
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* Xoops\Core\Logger - dispatch log requests to any registered loggers. |
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* |
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* No logging is done in this class, but any logger, implemented as a |
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* module or extension, can register as a logger using the addLogger() |
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* method. Multiple loggers can be registered, and each will be |
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* invoked in turn for each log() call. |
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* |
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* Such loggers are expected to implement the PSR-3 LoggerInterface. |
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* In addition, any logger that generates output as part of the XOOPS |
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* delivered page should implement the quiet() method, to disable output. |
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* |
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* Loggers are managed this way so that any routine may easily add a |
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* log entry without needing to know any details of the implementation. |
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* |
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* Not all events are published through this mechanism, only specific requests |
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* to log() or related methods. Individual loggers may listen for events (i.e. |
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* preloads) or other sources and gain access to detailed debugging information. |
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* |
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* @category Xoops\Core\Logger |
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* @package Logger |
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* @author Richard Griffith <[email protected]> |
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* @copyright 2013 XOOPS Project (http://xoops.org) |
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* @license GNU GPL 2 or later (http://www.gnu.org/licenses/gpl-2.0.html) |
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* @version Release: 2.6.0 |
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* @link http://xoops.org |
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* @since 2.6.0 |
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*/ |
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class Logger implements LoggerInterface |
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{ |
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/** |
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* @var LoggerInterface[] chain of PSR-3 compatible loggers to call |
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*/ |
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private $loggers = array(); |
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/** |
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* @var boolean do we have active loggers? |
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*/ |
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private $logging_active = false; |
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/** |
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* @var boolean just to prevent fatal legacy errors. Does nothing. Stop it! |
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*/ |
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//public $activated = false; |
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/** |
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* Get the Xoops\Core\Logger instance |
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* |
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* @return Logger object |
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*/ |
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public static function getInstance() |
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{ |
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static $instance; |
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if (!isset($instance)) { |
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$class = __CLASS__; |
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$instance = new $class(); |
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// Always catch errors, for security reasons |
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set_error_handler(array($instance, 'handleError')); |
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// grab any uncaught exception |
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set_exception_handler(array($instance, 'handleException')); |
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} |
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return $instance; |
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} |
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/** |
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* Error handling callback. |
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* |
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* This will |
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* |
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* @param integer $errorNumber error number |
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* @param string $errorString error message |
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* @param string $errorFile file |
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* @param integer $errorLine line number |
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* |
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* @return void |
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*/ |
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public function handleError($errorNumber, $errorString, $errorFile, $errorLine) |
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{ |
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if ($this->logging_active && ($errorNumber & error_reporting())) { |
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// if an error occurs before a locale is established, |
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// we still need messages, so check and deal with it |
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$msg = ': ' . sprintf( |
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(class_exists('\XoopsLocale', false) ? \XoopsLocale::EF_LOGGER_FILELINE : "%s in file %s line %s"), |
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$this->sanitizePath($errorString), |
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$this->sanitizePath($errorFile), |
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$errorLine |
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); |
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switch ($errorNumber) { |
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View Code Duplication |
case E_USER_NOTICE: |
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$msg = (class_exists('\XoopsLocale', false) ? \XoopsLocale::E_LOGGER_ERROR : '*Error:') . $msg; |
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$this->log(LogLevel::NOTICE, $msg); |
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break; |
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View Code Duplication |
case E_NOTICE: |
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$msg = (class_exists('\XoopsLocale', false) ? \XoopsLocale::E_LOGGER_NOTICE : '*Notice:') . $msg; |
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$this->log(LogLevel::NOTICE, $msg); |
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break; |
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View Code Duplication |
case E_WARNING: |
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$msg = (class_exists('\XoopsLocale', false) ? \XoopsLocale::E_LOGGER_WARNING : '*Warning:') . $msg; |
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$this->log(LogLevel::WARNING, $msg); |
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break; |
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View Code Duplication |
case E_STRICT: |
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$msg = (class_exists('\XoopsLocale', false) ? \XoopsLocale::E_LOGGER_STRICT : '*Strict:') . $msg; |
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$this->log(LogLevel::WARNING, $msg); |
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break; |
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View Code Duplication |
case E_USER_ERROR: |
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$msg = (class_exists('\XoopsLocale', false) ? \XoopsLocale::E_LOGGER_ERROR : '*Error:') . $msg; |
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@$this->log(LogLevel::CRITICAL, $msg); |
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break; |
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View Code Duplication |
default: |
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$msg = (class_exists('\XoopsLocale', false) ? \XoopsLocale::E_LOGGER_UNKNOWN : '*Unknown:') . $msg; |
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$this->log(LogLevel::ERROR, $msg); |
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break; |
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} |
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} |
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if ($errorNumber == E_USER_ERROR) { |
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$trace = true; |
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if (substr($errorString, 0, '8') === 'notrace:') { |
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$trace = false; |
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$errorString = substr($errorString, 8); |
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} |
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$this->reportFatalError($errorString); |
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if ($trace) { |
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$trace = debug_backtrace(); |
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array_shift($trace); |
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if ('cli' === php_sapi_name()) { |
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foreach ($trace as $step) { |
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if (isset($step['file'])) { |
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fprintf(STDERR, "%s (%d)\n", $this->sanitizePath($step['file']), $step['line']); |
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} |
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} |
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} else { |
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echo "<div style='color:#f0f0f0;background-color:#f0f0f0'>" . _XOOPS_FATAL_BACKTRACE . ":<br />"; |
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foreach ($trace as $step) { |
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if (isset($step['file'])) { |
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printf("%s (%d)\n<br />", $this->sanitizePath($step['file']), $step['line']); |
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} |
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} |
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echo '</div>'; |
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} |
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} |
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exit(); |
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} |
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} |
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/** |
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* Exception handling callback. |
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* |
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* @param \Exception|\Throwable $e uncaught Exception or Error |
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* |
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* @return void |
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*/ |
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public function handleException($e) |
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{ |
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if ($this->isThrowable($e)) { |
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$msg = $e->getMessage(); |
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$this->reportFatalError($msg); |
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} |
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} |
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/** |
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* Determine if an object implements Throwable (or is an Exception that would under PHP 7.) |
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* |
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* @param mixed $e Expected to be an object related to Exception or Throwable |
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* |
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* @return bool true if related to Throwable or Exception, otherwise false |
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*/ |
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protected function isThrowable($e) |
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{ |
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$type = interface_exists('\Throwable', false) ? '\Throwable' : '\Exception'; |
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return $e instanceof $type; |
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} |
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/** |
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* Announce fatal error, attempt to log |
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* |
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* @param string $msg error message to report |
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* |
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* @return void |
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*/ |
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private function reportFatalError($msg) |
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{ |
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$msg=$this->sanitizePath($msg); |
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if ('cli' === php_sapi_name()) { |
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fprintf(STDERR, "\nError : %s\n", $msg); |
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} else { |
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if (defined('_XOOPS_FATAL_MESSAGE')) { |
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printf(_XOOPS_FATAL_MESSAGE, XOOPS_URL, $msg); |
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} else { |
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printf("\nError : %s\n", $msg); |
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} |
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} |
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@$this->log(LogLevel::CRITICAL, $msg); |
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} |
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/** |
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* clean a path to remove sensitive details |
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* |
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* @param string $message text to sanitize |
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* |
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* @return string sanitized message |
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*/ |
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public function sanitizePath($message) |
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{ |
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$cleaners = [ |
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['\\', '/',], |
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[\XoopsBaseConfig::get('var-path'), 'VAR',], |
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[str_replace('\\', '/', realpath(\XoopsBaseConfig::get('var-path'))), 'VAR',], |
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[\XoopsBaseConfig::get('lib-path'), 'LIB',], |
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[str_replace('\\', '/', realpath(\XoopsBaseConfig::get('lib-path'))), 'LIB',], |
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[\XoopsBaseConfig::get('root-path'), 'ROOT',], |
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[str_replace('\\', '/', realpath(\XoopsBaseConfig::get('root-path'))), 'ROOT',], |
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[\XoopsBaseConfig::get('db-name') . '.', '',], |
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[\XoopsBaseConfig::get('db-name'), '',], |
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[\XoopsBaseConfig::get('db-prefix') . '_', '',], |
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[\XoopsBaseConfig::get('db-user'), '***',], |
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[\XoopsBaseConfig::get('db-pass'), '***',], |
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]; |
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$stringsToClean = array_column($cleaners, 0); |
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$replacementStings = array_column($cleaners, 1); |
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$message = str_replace($stringsToClean, $replacementStings, $message); |
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return $message; |
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} |
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/** |
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* add a PSR-3 compatible logger to the chain |
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* |
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* @param object $logger a PSR-3 compatible logger object |
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* |
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* @return void |
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*/ |
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public function addLogger($logger) |
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{ |
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if (is_object($logger) && method_exists($logger, 'log')) { |
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$this->loggers[] = $logger; |
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$this->logging_active = true; |
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} |
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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 message |
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* @param array $context array of context data for this log entry |
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* |
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* @return void |
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*/ |
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public function emergency($message, array $context = array()) |
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{ |
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$this->log(LogLevel::EMERGENCY, $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 message |
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* @param array $context array of context data for this log entry |
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* |
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* @return void |
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*/ |
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public function alert($message, array $context = array()) |
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{ |
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$this->log(LogLevel::ALERT, $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 message |
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* @param array $context array of context data for this log entry |
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* |
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* @return void |
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*/ |
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public function critical($message, array $context = array()) |
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{ |
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$this->log(LogLevel::CRITICAL, $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 message |
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* @param array $context array of context data for this log entry |
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* |
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* @return void |
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*/ |
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public function error($message, array $context = array()) |
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{ |
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$this->log(LogLevel::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 message |
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* @param array $context array of context data for this log entry |
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* |
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* @return void |
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*/ |
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public function warning($message, array $context = array()) |
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{ |
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1 |
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$this->log(LogLevel::WARNING, $message, $context); |
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1 |
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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 message |
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* @param array $context array of context data for this log entry |
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* |
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* @return void |
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*/ |
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1 |
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public function notice($message, array $context = array()) |
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{ |
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1 |
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$this->log(LogLevel::NOTICE, $message, $context); |
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1 |
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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 message |
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* @param array $context array of context data for this log entry |
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* |
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* @return void |
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*/ |
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1 |
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public function info($message, array $context = array()) |
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|
{ |
361
|
1 |
|
$this->log(LogLevel::INFO, $message, $context); |
362
|
1 |
|
} |
363
|
|
|
|
364
|
|
|
/** |
365
|
|
|
* Detailed debug information. |
366
|
|
|
* |
367
|
|
|
* @param string $message message |
368
|
|
|
* @param array $context array of context data for this log entry |
369
|
|
|
* |
370
|
|
|
* @return void |
371
|
|
|
*/ |
372
|
1 |
|
public function debug($message, array $context = array()) |
373
|
|
|
{ |
374
|
1 |
|
$this->log(LogLevel::DEBUG, $message, $context); |
375
|
1 |
|
} |
376
|
|
|
|
377
|
|
|
/** |
378
|
|
|
* Logs with an arbitrary level. |
379
|
|
|
* |
380
|
|
|
* @param mixed $level PSR-3 LogLevel constant |
381
|
|
|
* @param string $message message |
382
|
|
|
* @param array $context array of context data for this log entry |
383
|
|
|
* |
384
|
|
|
* @return void |
385
|
|
|
*/ |
386
|
14 |
|
public function log($level, $message, array $context = array()) |
387
|
|
|
{ |
388
|
14 |
|
if (!empty($this->loggers)) { |
389
|
13 |
|
foreach ($this->loggers as $logger) { |
390
|
13 |
|
if (is_object($logger)) { |
391
|
|
|
try { |
392
|
13 |
|
$logger->log($level, $message, $context); |
393
|
13 |
|
} catch (\Exception $e) { |
394
|
|
|
// just ignore, as we can't do anything, not even log it. |
395
|
|
|
} |
396
|
|
|
} |
397
|
|
|
} |
398
|
|
|
} |
399
|
14 |
|
} |
400
|
|
|
|
401
|
|
|
/** |
402
|
|
|
* quiet - turn off output if output is rendered in XOOPS page output. |
403
|
|
|
* This is intended to assist ajax code that may fail with any extra |
404
|
|
|
* content the logger may introduce. |
405
|
|
|
* |
406
|
|
|
* It should have no effect on loggers using other methods, such a write |
407
|
|
|
* to file. |
408
|
|
|
* |
409
|
|
|
* @return void |
410
|
|
|
*/ |
411
|
2 |
|
public function quiet() |
412
|
|
|
{ |
413
|
2 |
|
if (!empty($this->loggers)) { |
414
|
2 |
|
foreach ($this->loggers as $logger) { |
415
|
2 |
|
if (is_object($logger) && method_exists($logger, 'quiet')) { |
416
|
|
|
try { |
417
|
2 |
|
$logger->quiet(); |
|
|
|
|
418
|
2 |
|
} catch (\Exception $e) { |
419
|
|
|
// just ignore, as we can't do anything, not even log it. |
420
|
|
|
} |
421
|
|
|
} |
422
|
|
|
} |
423
|
|
|
} |
424
|
2 |
|
} |
425
|
|
|
|
426
|
|
|
// Deprecated uses |
427
|
|
|
|
428
|
|
|
/** |
429
|
|
|
* Keep deprecated calls from failing |
430
|
|
|
* |
431
|
|
|
* @param string $var property |
432
|
|
|
* @param string $val value |
433
|
|
|
* |
434
|
|
|
* @return void |
435
|
|
|
* |
436
|
|
|
* @deprecated |
437
|
|
|
*/ |
438
|
1 |
|
public function __set($var, $val) |
439
|
|
|
{ |
440
|
1 |
|
$this->deprecatedMessage(); |
441
|
|
|
// legacy compatibility: turn off logger display for $xoopsLogger->activated = false; usage |
442
|
1 |
|
if ($var==='activated' && !$val) { |
443
|
1 |
|
$this->quiet(); |
444
|
|
|
} |
445
|
|
|
|
446
|
1 |
|
} |
447
|
|
|
|
448
|
|
|
/** |
449
|
|
|
* Keep deprecated calls from failing |
450
|
|
|
* |
451
|
|
|
* @param string $var property |
452
|
|
|
* |
453
|
|
|
* @return void |
454
|
|
|
* |
455
|
|
|
* @deprecated |
456
|
|
|
*/ |
457
|
1 |
|
public function __get($var) |
458
|
|
|
{ |
459
|
1 |
|
$this->deprecatedMessage(); |
460
|
1 |
|
} |
461
|
|
|
|
462
|
|
|
/** |
463
|
|
|
* Keep deprecated calls from failing |
464
|
|
|
* |
465
|
|
|
* @param string $method method |
466
|
|
|
* @param string $args arguments |
467
|
|
|
* |
468
|
|
|
* @return void |
469
|
|
|
* |
470
|
|
|
* @deprecated |
471
|
|
|
*/ |
472
|
1 |
|
public function __call($method, $args) |
473
|
|
|
{ |
474
|
1 |
|
$this->deprecatedMessage(); |
475
|
1 |
|
} |
476
|
|
|
|
477
|
|
|
/** |
478
|
|
|
* issue a deprecated warning |
479
|
|
|
* |
480
|
|
|
* @return void |
481
|
|
|
*/ |
482
|
3 |
|
private function deprecatedMessage() |
483
|
|
|
{ |
484
|
3 |
|
$xoops = \Xoops::getInstance(); |
485
|
3 |
|
$xoops->deprecated('This use of XoopsLogger is deprecated since 2.6.0.'); |
486
|
3 |
|
} |
487
|
|
|
} |
488
|
|
|
|
If you suppress an error, we recommend checking for the error condition explicitly: