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Respect bruteforce settings in the Throttler

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Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>
This commit is contained in:
Roeland Jago Douma 2016-11-14 14:05:01 +01:00
parent dca555b7f3
commit be674c19a5
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GPG key ID: F941078878347C0C
2 changed files with 154 additions and 1 deletions
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65
lib/private/Security/Bruteforce/Throttler.php
View file

@ -185,6 +185,67 @@ class Throttler {
$qb->execute();
}
/**
* Check if the IP is whitelisted
*
* @param string $ip
* @return bool
*/
private function isIPWhitelisted($ip) {
$keys = $this->config->getAppKeys('bruteForce');
$keys = array_filter($keys, function($key) {
$regex = '/^whitelist_/S';
return preg_match($regex, $key) === 1;
});
if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {
$type = 4;
} else if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) {
$type = 6;
} else {
return false;
}
$ip = inet_pton($ip);
foreach ($keys as $key) {
$cidr = $this->config->getAppValue('bruteForce', $key, null);
$cx = explode('/', $cidr);
$addr = $cx[0];
$mask = (int)$cx[1];
// Do not compare ipv4 to ipv6
if (($type === 4 && !filter_var($addr, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) ||
($type === 6 && !filter_var($addr, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6))) {
continue;
}
$addr = inet_pton($addr);
$valid = true;
for($i = 0; $i < $mask; $i++) {
$part = ord($addr[(int)($i/8)]);
$orig = ord($ip[(int)($i/8)]);
$part = $part & (15 << (1 - ($i % 2)));
$orig = $orig & (15 << (1 - ($i % 2)));
if ($part !== $orig) {
$valid = false;
break;
}
}
if ($valid === true) {
return true;
}
}
return false;
}
/**
* Get the throttling delay (in milliseconds)
*
@ -193,6 +254,10 @@ class Throttler {
* @return int
*/
public function getDelay($ip, $action = '') {
if ($this->isIPWhitelisted($ip)) {
return 0;
}
$cutoffTime = (new \DateTime())
->sub($this->getCutoff(43200))
->getTimestamp();

90
tests/lib/Security/Bruteforce/ThrottlerTest.php
View file

@ -40,7 +40,7 @@ class ThrottlerTest extends TestCase {
private $dbConnection;
/** @var ILogger */
private $logger;
/** @var IConfig */
/** @var IConfig|\PHPUnit_Framework_MockObject_MockObject */
private $config;
public function setUp() {
@ -120,4 +120,92 @@ class ThrottlerTest extends TestCase {
$this->invokePrivate($this->throttler, 'getIPv6Subnet', ['2001:0db8:85a3:0000:0000:8a2e:0370:7334', 40])
);
}
public function dataIsIPWhitelisted() {
return [
[
'10.10.10.10',
[
'whitelist_0' => '10.10.10.0/24',
],
true,
],
[
'10.10.10.10',
[
'whitelist_0' => '192.168.0.0/16',
],
false,
],
[
'10.10.10.10',
[
'whitelist_0' => '192.168.0.0/16',
'whitelist_1' => '10.10.10.0/24',
],
true,
],
[
'dead:beef:cafe::1',
[
'whitelist_0' => '192.168.0.0/16',
'whitelist_1' => '10.10.10.0/24',
'whitelist_2' => 'deaf:beef:cafe:1234::/64'
],
false,
],
[
'dead:beef:cafe::1',
[
'whitelist_0' => '192.168.0.0/16',
'whitelist_1' => '10.10.10.0/24',
'whitelist_2' => 'deaf:beef::/64'
],
false,
],
[
'dead:beef:cafe::1',
[
'whitelist_0' => '192.168.0.0/16',
'whitelist_1' => '10.10.10.0/24',
'whitelist_2' => 'deaf:cafe::/8'
],
true,
],
[
'invalid',
[],
false,
],
];
}
/**
* @dataProvider dataIsIPWhitelisted
*
* @param string $ip
* @param string[] $whitelists
* @param bool $isWhiteListed
*/
public function testIsIPWhitelisted($ip, $whitelists, $isWhiteListed) {
$this->config->method('getAppKeys')
->with($this->equalTo('bruteForce'))
->willReturn(array_keys($whitelists));
$this->config->method('getAppValue')
->will($this->returnCallback(function($app, $key, $default) use ($whitelists) {
if ($app !== 'bruteForce') {
return $default;
}
if (isset($whitelists[$key])) {
return $whitelists[$key];
}
return $default;
}));
$this->assertSame(
$isWhiteListed,
$this->invokePrivate($this->throttler, 'isIPWhitelisted', [$ip])
);
}
}