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nicolas-grekasnicolas-grekas
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[Debug] Add BootstrappingLogger to buffer errors that happen before a proper logger is configured
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6 files changed

+196
-4
lines changed

6 files changed

+196
-4
lines changed

‎src/Symfony/Component/Debug/BootstrappingLoggerInterface.php

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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <[email protected]>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Debug;
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use Psr\Log\LoggerInterface;
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/**
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* A bootstrapping logger that can stack logs and flush them when required to another logger.
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*
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* @author Nicolas Grekas <[email protected]>
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*/
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interface BootstrappingLoggerInterface extends LoggerInterface
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{
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public function flush(LoggerInterface $logger);
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}

‎src/Symfony/Component/Debug/BufferingLogger.php

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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <[email protected]>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Debug;
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use Psr\Log\AbstractLogger;
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use Psr\Log\LoggerInterface;
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/**
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* A buffering logger that stacks logs and flushes them when required to another logger.
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*
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* @author Nicolas Grekas <[email protected]>
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*/
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class BufferingLogger extends AbstractLogger implements BootstrappingLoggerInterface
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{
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private $stripScopeVars;
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private $logs = array();
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public function __construct($stripScopeVars = true)
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{
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$this->stripScopeVars = $stripScopeVars;
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}
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public function log($level, $message, array $context = array())
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{
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if ($this->stripScopeVars) {
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if (isset($context['stack']) && is_array($context['stack'])) {
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foreach ($context['stack'] as &$frame) {
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unset($frame['args'], $frame['object'], $frame);
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}
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}
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unset($context['scope_vars']);
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}
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$this->logs[] = array($level, $message, $context);
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}
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public function flush(LoggerInterface $logger)
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{
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$logs = $this->logs;
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$this->logs = array();
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foreach ($logs as $log) {
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$logger->log($log[0], $log[1], $log[2]);
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}
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}
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}

‎src/Symfony/Component/Debug/CHANGELOG.md

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@@ -1,6 +1,13 @@
11
CHANGELOG
22
=========
33

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2.8.0
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-----
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* added BufferingLogger and BootstrappingLoggerInterface for errors that happen before a proper logger is configured
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* allow throwing from `__toString()` with `return trigger_error($e, E_USER_ERROR);`
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* deprecate ExceptionHandler::createResponse
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411
2.7.0
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-----
613

‎src/Symfony/Component/Debug/Debug.php

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@@ -53,6 +53,12 @@ public static function enable($errorReportingLevel = null, $displayErrors = true
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ini_set('display_errors', 1);
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}
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$handler = ErrorHandler::register();
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$loggers = $handler->setLoggers(array());
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foreach ($loggers as &$level) {
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$level[0] = new BufferingLogger();
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}
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unset($level);
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$handler->setLoggers($loggers);
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if (!$displayErrors) {
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$handler->throwAt(0, true);
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}

‎src/Symfony/Component/Debug/ErrorHandler.php

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@@ -165,7 +165,7 @@ public function setDefaultLogger(LoggerInterface $logger, $levels = null, $repla
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if (is_array($levels)) {
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foreach ($levels as $type => $logLevel) {
168-
if (empty($this->loggers[$type][0]) || $replace) {
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if (empty($this->loggers[$type][0]) || $replace || $this->loggers[$type][0] instanceof BootstrappingLoggerInterface) {
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$loggers[$type] = array($logger, $logLevel);
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}
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}
@@ -174,7 +174,7 @@ public function setDefaultLogger(LoggerInterface $logger, $levels = null, $repla
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$levels = E_ALL | E_STRICT;
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}
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foreach ($this->loggers as $type => $log) {
177-
if (($type & $levels) && (empty($log[0]) || $replace)) {
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if (($type & $levels) && (empty($log[0]) || $replace || $log[0] instanceof BootstrappingLoggerInterface)) {
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$log[0] = $logger;
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$loggers[$type] = $log;
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}
@@ -215,6 +215,10 @@ public function setLoggers(array $loggers)
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throw new \InvalidArgumentException('Invalid logger provided');
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}
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$this->loggers[$type] = $log + $prev[$type];
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if (($this->loggedErrors & $type) && $prev[$type][0] instanceof BootstrappingLoggerInterface) {
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$prev[$type][0]->flush($this->loggers[$type][0]);
221+
}
218222
}
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$this->reRegister($prevLogged | $this->thrownErrors);
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@@ -252,7 +256,7 @@ public function setExceptionHandler($handler)
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public function throwAt($levels, $replace = false)
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{
254258
$prev = $this->thrownErrors;
255-
$this->thrownErrors = ($levels | E_RECOVERABLE_ERROR | E_USER_ERROR) & ~E_USER_DEPRECATED & ~E_DEPRECATED;
259+
$this->thrownErrors = (E_ALL | E_STRICT) & ($levels | E_RECOVERABLE_ERROR | E_USER_ERROR) & ~E_USER_DEPRECATED & ~E_DEPRECATED;
256260
if (!$replace) {
257261
$this->thrownErrors |= $prev;
258262
}
@@ -490,7 +494,7 @@ public function handleError($type, $message, $file, $line, array $context, array
490494
}
491495

492496
/**
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* Handles an exception by logging then forwarding it to an other handler.
497+
* Handles an exception by logging then forwarding it to another handler.
494498
*
495499
* @param \Exception|\Throwable $exception An exception to handle
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* @param array $error An array as returned by error_get_last()

‎src/Symfony/Component/Debug/Tests/BufferingLoggerTest.php

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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <[email protected]>
7+
*
8+
* For the full copyright and license information, please view the LICENSE
9+
* file that was distributed with this source code.
10+
*/
11+
12+
namespace Symfony\Component\Debug\Tests;
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use Psr\Log\LogLevel;
15+
use Symfony\Component\Debug\BufferingLogger;
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use Symfony\Component\Debug\ErrorHandler;
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/**
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* BufferingLoggerTest.
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*
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* @author Nicolas Grekas <[email protected]>
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*/
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class BufferingLoggerTest extends \PHPUnit_Framework_TestCase
24+
{
25+
public function testFlush()
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{
27+
for ($strip = 0; $strip < 2; ++$strip) {
28+
$logger = new BufferingLogger((bool) $strip);
29+
30+
$context = array(
31+
'level' => 0,
32+
'type' => E_USER_NOTICE,
33+
'file' => __FILE__,
34+
'line' => 123,
35+
'scope_vars' => 234,
36+
'stack' => array(
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array(
38+
'file' => __FILE__,
39+
'args' => 345,
40+
'object' => 456,
41+
),
42+
),
43+
);
44+
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$logger->log(LogLevel::INFO, 'Foo message', $context);
46+
47+
if ($strip) {
48+
unset($context['scope_vars'], $context['stack'][0]['args'], $context['stack'][0]['object']);
49+
}
50+
51+
$mockLogger = $this->getMock('Psr\Log\LoggerInterface');
52+
$mockLogger->expects($this->once())
53+
->method('log')
54+
->with(LogLevel::INFO, 'Foo message', $context);
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56+
$logger->flush($mockLogger);
57+
}
58+
}
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public function testLifecycle()
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{
62+
$logger = new BufferingLogger();
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$handler = new ErrorHandler();
65+
$handler->setDefaultLogger($logger);
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67+
$handler->handleError(E_DEPRECATED, 'Foo message', __FILE__, 123, array());
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69+
$mockLogger = $this->getMock('Psr\Log\LoggerInterface');
70+
$mockLogger->expects($this->once())
71+
->method('log')
72+
->with(LogLevel::INFO, 'Foo message', $this->isType('array'));
73+
74+
$handler->setDefaultLogger($mockLogger);
75+
76+
$loggers = array(
77+
E_DEPRECATED => array($mockLogger, LogLevel::INFO),
78+
E_USER_DEPRECATED => array($mockLogger, LogLevel::INFO),
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E_NOTICE => array($mockLogger, LogLevel::WARNING),
80+
E_USER_NOTICE => array($mockLogger, LogLevel::WARNING),
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E_STRICT => array($mockLogger, LogLevel::WARNING),
82+
E_WARNING => array($mockLogger, LogLevel::WARNING),
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E_USER_WARNING => array($mockLogger, LogLevel::WARNING),
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E_COMPILE_WARNING => array($mockLogger, LogLevel::WARNING),
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E_CORE_WARNING => array($mockLogger, LogLevel::WARNING),
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E_USER_ERROR => array($mockLogger, LogLevel::CRITICAL),
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E_RECOVERABLE_ERROR => array($mockLogger, LogLevel::CRITICAL),
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E_COMPILE_ERROR => array($mockLogger, LogLevel::CRITICAL),
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E_PARSE => array($mockLogger, LogLevel::CRITICAL),
90+
E_ERROR => array($mockLogger, LogLevel::CRITICAL),
91+
E_CORE_ERROR => array($mockLogger, LogLevel::CRITICAL),
92+
);
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$this->assertSame($loggers, $handler->setLoggers(array()));
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}
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}

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