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* ActiveDirectory: implement fail over for multiple AD controllers (failed controllers are blacklisted for 5min)

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This commit is contained in:
ralf 2023-06-23 09:46:59 +02:00
parent 18f902580f
commit 7370b42c1e
1 changed files with 58 additions and 0 deletions
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58
api/src/Accounts/Ads.php
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@ -1393,6 +1393,64 @@ class adLDAP extends \adLDAP
parent::__construct($options); parent::__construct($options);
} }
private string $_controller;
/**
* Reimplemented to try all given AD controllers, before finally failing
*
* @return bool
* @throws adLDAPException
*/
function connect()
{
// if no more working (not failed) controllers, try again with all of them
if (!($controllers = array_diff($this->domainControllers, $failed=(array)Api\Cache::getInstance(__CLASS__, 'failed'))))
{
$controllers = $this->domainControllers;
$failed = [];
Api\Cache::unsetInstance(__CLASS__, 'failed');
}
if ((float)PHP_VERSION < 8.2)
{
$shuffled = [];
while($controllers)
{
$shuffled[] = $controllers[$key = array_rand($controllers)];
unset($controllers[$key]);
}
$controllers = $shuffled;
}
else
{
$r = new \Random\Randomizer();
$controllers = $r->shuffleArray($controllers);
}
foreach($controllers as $this->_controller)
{
try {
return parent::connect();
}
catch (adLDAPException $e) {
$failed[] = $this->_controller;
Api\Cache::setInstance(__CLASS__, 'failed', $failed, 300);
}
}
// if none of the controllers worked, throw the exception
throw $e;
}
/**
* Not so random anymore ;)
*
* @return string
*/
function randomController()
{
return $this->_controller ?? parent::randomController();
}
/** /**
* Magic method called when object gets serialized * Magic method called when object gets serialized
* *