Fixed inet_pton(): Unrecognized address unknown
- Thread starter AndyB
- Start date
Oldengine
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Server error log
- ErrorException: [E_WARNING] inet_pton(): Unrecognized address unknown
- src/XF/Util/Ip.php:382
- Generated by: Unknown account
- Jul 21, 2022 at 7:48 AM
Stack trace
#0 [internal function]: XF::handlePhpError(2, '[E_WARNING] ine...', '/home/smoky/pub...', 382, Array)#1 src/XF/Util/Ip.php(382): inet_pton('unknown')
#2 src/XF/Pub/Controller/AbstractController.php(151): XF\Util\Ip::checkIpsAgainstBinaryRangeList(Array, Array)
#3 src/XF/Pub/Controller/AbstractController.php(17): XF\Pub\Controller\AbstractController->assertIpNotBanned()
#4 src/XF/Mvc/Controller.php(125): XF\Pub\Controller\AbstractController->preDispatchType('Index', Object(XF\Mvc\ParameterBag))
#5 src/XF/Mvc/Dispatcher.php(351): XF\Mvc\Controller->preDispatch('Index', Object(XF\Mvc\ParameterBag))
#6 src/XF/Mvc/Dispatcher.php(263): XF\Mvc\Dispatcher->dispatchClass('XF:Thread', 'Index', Object(XF\Mvc\RouteMatch), Object(XFMG\XF\Pub\Controller\Thread), NULL)
#7 src/XF/Mvc/Dispatcher.php(115): XF\Mvc\Dispatcher->dispatchFromMatch(Object(XF\Mvc\RouteMatch), Object(XFMG\XF\Pub\Controller\Thread), NULL)
#8 src/XF/Mvc/Dispatcher.php(57): XF\Mvc\Dispatcher->dispatchLoop(Object(XF\Mvc\RouteMatch))
#9 src/XF/App.php(2353): XF\Mvc\Dispatcher->run()
#10 src/XF.php(524): XF\App->run()
#11 index.php(20): XF::runApp('XF\\Pub\\App')
#12 {main}
Request state
array(4) {["url"] => string(44) "/forum/threads/texas-shooting.222916/page-11"
["referrer"] => bool(false)
["_GET"] => array(0) {
}
["_POST"] => array(0) {
}
}
@Oldengine could you let us know which add-ons you have installed, please?
PHP:
public function assertIpNotBanned()
{
$bannedIps = $this->app()->container('bannedIps');
$result = \XF\Util\Ip::checkIpsAgainstBinaryRangeList($this->request->getAllIps(), $bannedIps['data']);I'm guessing it is junk an incorrectly setup webserver which is allowing arbitrary text via CLIENT_IP/X_FORWARDED_FOR headers. The
getIp function probably needs a bit of hardening to validate/parse the external headers if they are set.
Last edited:
Baby Community
Well-known member
I am following
AndyB
Well-known member
Baby Community
Well-known member
it seems to me that these problems are due to incompatibility of any plugin.. But xenforo developers know better… and my intuition didn't lie to me this issue sounds like a very simple code conflict…
PaulB
Well-known member
"unknown" is a valid identifier for
it should be skipped at request
X-Forwarded-For header
getAllIps() method
PaulB
Well-known member
No. It comes from using an old version of PHP that generates a warning when fed an invalid IP address instead of returning
false like newer versions do. This behavior was changed in PHP 7.3, which is probably why @Kier et al haven't been able to reproduce it.Really, the best solution here is to update to a newer version of PHP, but as long as XenForo supports PHP versions prior to 7.3, the fix on their end is to suppress the warning with
@ or use a try-catch to disregard the error.Edit: The underlying cause wasn't obvious because PHP removed any mention of the warning from their documentation. When you encounter language-level errors (rather than exceptions) that don't align with the current documentation, usually that's a sign the failure mode of the function changed between PHP versions--and, indeed, plugging this into 3v4l.org shows that's what happened here.
XenForo tries to correctly handle bogus input, which it needs to do since some of the input comes from user-supplied headers. PHP's handling of bogus data passed to inet_pton has changed over time. By prefixing inet_pton with @, you're effectively opting into the newer behavior. This will allow inet_pton to return false, which XenForo will correctly interpret to mean the IP address is invalid.
If you're encountering this issue, rather than manually fixing it, please consider upgrading to a newer version of PHP.
I know that's a tall ask for a lot of sites, but if you were waiting for an excuse, now is as good an opportunity as any.
Last edited:
Baby Community
Well-known member
for example xenforo gives information about a version when it is released. mysql: 5.5 also use PHP:8. Following those recommendations is to get the most out of the forum
Surf_Rider
Active member
same problem
Baby Community
Well-known member
Do you have the same problem even though you set PHP to 8 on your server?
Surf_Rider
Active member
Hmm... i change php 7.2 to php 8.
UPD.
- ErrorException: [E_WARNING] Trying to access array offset on value of type bool
- src/XF/Util/Ip.php:340
Last edited:
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