[3.0.0]Seg fault on php5 when forwarding from beforeException #12154
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Yea but what is weird it works on php 7 though. |
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Confirmed issue as well. Backtrace Backtrace when built with zephir builddev |
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There are actually 2 bugs.
Here is the test script which outlines the 2 bugs. Adjust the commented sections in the 3 cases in the index.php <?php
/**
* IndexController
*/
class IndexController extends \Phalcon\Mvc\Controller
{
public function initialize()
{
$this->getDI()->getShared('view')->disable();
}
public function indexAction()
{
echo 'Index Action <br />';
throw new Exception('Something happened');
}
public function errorAction()
{
echo 'Error Action <br />';
}
}
/**
* Dispatcher ExceptionHandler
*/
class ExceptionHandler extends \Phalcon\Mvc\User\Plugin
{
public function beforeException(\Phalcon\Events\Event $event, \Phalcon\DispatcherInterface $dispatcher, \Exception $exception)
{
echo 'ExceptionHandler::beforeException() - ' . $exception->getMessage() . '<br />';
////////////////////////////////////////////////////////
// Case 1:
////////////////////////////////////////////////////////
// return false;
// **Output** (OK)
// Index Action
// ExceptionHandler::beforeException() - Something happened
////////////////////////////////////////////////////////
// Case 2 - Empty return or nothing at all
////////////////////////////////////////////////////////
// return;
// **Output** (Exception handler gets thrown twice)
// Index Action
// ExceptionHandler::beforeException() - Something happened
// ExceptionHandler::beforeException() - Something happened
// Fatal error: Uncaught exception 'Exception' with message 'Something happened' in /var/www/public/index.php:18 Stack trace: #0 [internal function]: IndexController->indexAction() #1 [internal function]: Phalcon\Dispatcher->callActionMethod(Object(IndexController), 'indexAction', Array) #2 [internal function]: Phalcon\Dispatcher->_dispatch() #3 [internal function]: Phalcon\Dispatcher->dispatch() #4 /var/www/public/index.php(87): Phalcon\Mvc\Application->handle() #5 {main} thrown in /var/www/public/index.php on line 18
// The beforeException gets called again (resulting 2x) because we're not marked
// as finished so the exception gets thrown up the stack
// https://github.com/phalcon/cphalcon/blob/master/phalcon/dispatcher.zep#L595
// **Expected Output**
// Index Action
// ExceptionHandler::beforeException() - Something happened
// Fatal error: Uncaught exception 'Exception' with message 'Something happened' in /var/www/public/index.php:18 Stack trace: #0 [internal function]: IndexController->indexAction() #1 [internal function]: Phalcon\Dispatcher->callActionMethod(Object(IndexController), 'indexAction', Array) #2 [internal function]: Phalcon\Dispatcher->_dispatch() #3 [internal function]: Phalcon\Dispatcher->dispatch() #4 /var/www/public/index.php(87): Phalcon\Mvc\Application->handle() #5 {main} thrown in /var/www/public/index.php on line 18
////////////////////////////////////////////////////////
// Case 3:
////////////////////////////////////////////////////////
// $dispatcher->forward(['action' => 'error']);
// return false;
// **Output** (SIGFAULT - Combination of forward + return false)
// **Expected Output**
// Index Action
// ExceptionHandler::beforeException() - Something happened
// Error Action
}
}
////////////////////////////////////////////////////////
// Bootstrap
////////////////////////////////////////////////////////
$di = new \Phalcon\Di\FactoryDefault();
$di->setShared('view', function() {
return new \Phalcon\Mvc\View();
});
$di->setShared('dispatcher', function() {
$eventsManager = new \Phalcon\Events\Manager();
$eventsManager->attach('dispatch:beforeException', new ExceptionHandler());
$dispatcher = new \Phalcon\Mvc\Dispatcher();
$dispatcher->setEventsManager($eventsManager);
return $dispatcher;
});
$application = new \Phalcon\Mvc\Application();
$application->setEventsManager(new \Phalcon\Events\Manager());
$application->setDI($di);
echo $application->handle()->getContent(); |
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There's a 2 issues for why this isn't working. The primary issue is there exists a core Zephir bug with multiple try/catch blocks. The resulting Zephir code currently compiles bad c code for the JUMP frames as a result of: https://github.com/phalcon/zephir/blob/master/Library/Call.php#L676 public function addCallStatusOrJump(CompilationContext $compilationContext)
{
$compilationContext->headersManager->add('kernel/fcall');
if (!$compilationContext->insideTryCatch) {
$compilationContext->codePrinter->output('zephir_check_call_status();');
} else {
$compilationContext->codePrinter->output(
'zephir_check_call_status_or_jump(try_end_' . $compilationContext->insideTryCatch . ');'
// ^^currentTryCatch
);
}
}The outputting of the JUMP call always results in @andresgutierrez or @sergeyklay - Can you guys update zephir with above fix^^ Once that's fixed in Zephir, the double dispatch error can be fixed by pulling out the commit that wraps the entire dispatch loop in a separate try/catch. I'm working on a PR that will fix the double error handling while still ensuring proper bubbling of exceptions. |
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Could you please check 3.0.x branch? git clone [email protected]:phalcon/cphalcon.git
cd cphalcon
git checkout 3.0.x
# Use latest Zephir here from master branch
zephir fullclean
zephir build |
virgofx
pushed a commit
to virgofx/cphalcon
that referenced
this issue
Sep 9, 2016
exceptions, and improved documentation/test-suite for dispatcher components [phalcon#12154](phalcon#12154), [phalcon#11819](phalcon#11819)
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Fixed in the |
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Expected and Actual Behavior
Should return test, but it doesn't, there is just seg fault when accessing just index page(
/)On php7 it works though.
Backtrace - http://pastebin.com/jD5GQJaJ
Github repo - https://github.com/Jurigag/phalcon-segfault-before-forward
Details
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