forked from https://github.com/symfony/symfony
8f4a0b61c5
This PR was merged into the 3.4 branch.
Discussion
----------
[Fix][3.4][HttpFoundation] Fix the updating of timestamp in the MemcachedSessionHandler
| Q | A
| ------------- | ---
| Branch? | 3.4
| Bug fix? | yes
| New feature? | no
| BC breaks? | no
| Deprecations? | no
| Tests pass? | yes
| License | MIT
Conditions: Symfony 3.4, PHP7 and sessions handled over memcache.
Apparently `memcached::touch()` returns `false` on a subsequent call with the same parameters. Since `updateTimestamp` is used in `AbstractSessionHandler::write()`
```
public function write($sessionId, $data)
{
if (\PHP_VERSION_ID < 70000 && $this->prefetchData) {
$readData = $this->prefetchData;
$this->prefetchData = null;
if ($readData === $data) {
return $this->updateTimestamp($sessionId, $data);
}
}
...
```
the result is that `write()` will return `false` on **any subsequent request within the same second** causing the following error:
```
HP Fatal error: Uncaught Symfony\Component\Debug\Exception\ContextErrorException: Warning: session_write_close(): Failed to write session data (user). Please verify that the current setting of session.save_path is correct (/var/lib/php/sessions) in Unknown:0
Stack trace:
#0 [internal function]: Symfony\Component\Debug\ErrorHandler->handleError(2, 'session_write_c...', 'Unknown', 0, NULL)
#1 [internal function]: session_write_close()
#2 {main}
thrown in Unknown on line 0
```
Can be reproduced on `symfony/skeleton:3.4` adding the following code to `public/index.php` and performing two consecutive requests:
```
$session = $kernel->getContainer()->get('session');
$session->set("foo", "bar");
```
Commits
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| .composer | ||
| .github | ||
| src/Symfony | ||
| .editorconfig | ||
| .gitignore | ||
| .php_cs.dist | ||
| .travis.yml | ||
| appveyor.yml | ||
| CHANGELOG-3.0.md | ||
| CHANGELOG-3.1.md | ||
| CHANGELOG-3.2.md | ||
| CHANGELOG-3.3.md | ||
| CHANGELOG-3.4.md | ||
| composer.json | ||
| CONTRIBUTING.md | ||
| CONTRIBUTORS.md | ||
| LICENSE | ||
| link | ||
| phpunit | ||
| phpunit.xml.dist | ||
| README.md | ||
| UPGRADE-3.0.md | ||
| UPGRADE-3.1.md | ||
| UPGRADE-3.2.md | ||
| UPGRADE-3.3.md | ||
| UPGRADE-3.4.md | ||
| UPGRADE-4.0.md | ||
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