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by Jeroen
14:02 queued 07:05
created

EventListener/SessionSecurityListener.php (4 issues)

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<?php
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namespace Kunstmaan\AdminBundle\EventListener;
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use Psr\Log\LoggerInterface;
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use Symfony\Component\HttpFoundation\Request;
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use Symfony\Component\HttpFoundation\Session\SessionInterface;
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use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
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use Symfony\Component\HttpKernel\Event\GetResponseEvent;
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use Symfony\Component\HttpKernel\HttpKernelInterface;
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class SessionSecurityListener
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{
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    /**
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     * @var LoggerInterface
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     */
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    private $logger;
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    /**
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     * @var bool
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     */
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    private $ipCheck;
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    /**
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     * @var bool
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     */
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    private $userAgentCheck;
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    /**
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     * @var string
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     */
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    private $ip;
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    /**
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     * @var string
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     */
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    private $userAgent;
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    /**
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     * @param bool            $ipCheck
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     * @param bool            $userAgentCheck
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     * @param LoggerInterface $logger
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     */
44 3
    public function __construct($ipCheck, $userAgentCheck, LoggerInterface $logger)
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    {
46 3
        $this->ipCheck = $ipCheck;
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        $this->userAgentCheck = $userAgentCheck;
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        $this->logger = $logger;
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    }
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    /**
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     * @param FilterResponseEvent $event
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     */
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    public function onKernelResponse(FilterResponseEvent $event)
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    {
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        if (HttpKernelInterface::MASTER_REQUEST !== $event->getRequestType()) {
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            return;
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        }
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        // Make sure the ip and user agent is stored in the session
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        $request = $event->getRequest();
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        if ($request->hasSession() && $request->getSession()->isStarted()) {
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            $session = $request->getSession();
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            if ($this->ipCheck && !$session->has('kuma_ip')) {
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                $session->set('kuma_ip', $this->getIp($request));
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            }
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            if ($this->userAgentCheck && !$session->has('kuma_ua')) {
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                $session->set('kuma_ua', $this->getUserAgent($request));
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            }
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        }
71 2
    }
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    /**
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     * @param GetResponseEvent $event
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     */
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    public function onKernelRequest(GetResponseEvent $event)
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    {
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        if (HttpKernelInterface::MASTER_REQUEST !== $event->getRequestType()) {
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            return;
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        }
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        $request = $event->getRequest();
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        if ($request->hasSession() && $request->getSession()->isStarted()) {
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            $session = $request->getSession();
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            // Check that the ip matches
87 1 View Code Duplication
            if ($this->ipCheck && $session->has('kuma_ip') && $session->get('kuma_ip') != $this->getIp($request)) {
88 1
                $this->logger->error(sprintf(
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                    "Session ip '%s' does not match with request ip '%s', invalidating the current session",
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                    $session->get('kuma_ip'),
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                    $this->getIp($request)
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                ));
93 1
                $this->invalidateSession($session, $request);
0 ignored issues
show
It seems like $session defined by $request->getSession() on line 84 can be null; however, Kunstmaan\AdminBundle\Ev...er::invalidateSession() does not accept null, maybe add an additional type check?

Unless you are absolutely sure that the expression can never be null because of other conditions, we strongly recommend to add an additional type check to your code:

/** @return stdClass|null */
function mayReturnNull() { }

function doesNotAcceptNull(stdClass $x) { }

// With potential error.
function withoutCheck() {
    $x = mayReturnNull();
    doesNotAcceptNull($x); // Potential error here.
}

// Safe - Alternative 1
function withCheck1() {
    $x = mayReturnNull();
    if ( ! $x instanceof stdClass) {
        throw new \LogicException('$x must be defined.');
    }
    doesNotAcceptNull($x);
}

// Safe - Alternative 2
function withCheck2() {
    $x = mayReturnNull();
    if ($x instanceof stdClass) {
        doesNotAcceptNull($x);
    }
}
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94
            }
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            // Check that the user agent matches
97 1 View Code Duplication
            if ($this->userAgentCheck && $session->has('kuma_ua') && $session->get('kuma_ua') != $this->getUserAgent($request)) {
98 1
                $this->logger->error(sprintf(
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                    "Session user agent '%s' does not match with request user agent '%s', invalidating the current session",
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                    $session->get('kuma_ua'),
101 1
                    $this->getUserAgent($request)
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                ));
103 1
                $this->invalidateSession($session, $request);
0 ignored issues
show
It seems like $session defined by $request->getSession() on line 84 can be null; however, Kunstmaan\AdminBundle\Ev...er::invalidateSession() does not accept null, maybe add an additional type check?

Unless you are absolutely sure that the expression can never be null because of other conditions, we strongly recommend to add an additional type check to your code:

/** @return stdClass|null */
function mayReturnNull() { }

function doesNotAcceptNull(stdClass $x) { }

// With potential error.
function withoutCheck() {
    $x = mayReturnNull();
    doesNotAcceptNull($x); // Potential error here.
}

// Safe - Alternative 1
function withCheck1() {
    $x = mayReturnNull();
    if ( ! $x instanceof stdClass) {
        throw new \LogicException('$x must be defined.');
    }
    doesNotAcceptNull($x);
}

// Safe - Alternative 2
function withCheck2() {
    $x = mayReturnNull();
    if ($x instanceof stdClass) {
        doesNotAcceptNull($x);
    }
}
Loading history...
104
            }
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        }
106 1
    }
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    /**
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     * @param SessionInterface $session
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     * @param Request          $request
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     */
112 1
    private function invalidateSession(SessionInterface $session, Request $request)
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    {
114 1
        $session->invalidate();
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        $session->set('kuma_ip', $this->getIp($request));
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        $session->set('kuma_ua', $this->getUserAgent($request));
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    }
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    /**
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     * @param Request $request
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     *
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     * @return string
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     */
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    private function getIp(Request $request)
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    {
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        if (!$this->ip) {
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            $forwarded = $request->server->get('HTTP_X_FORWARDED_FOR');
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            if (strlen($forwarded) > 0) {
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                $parts = explode(',', $forwarded);
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                $parts = array_map('trim', $parts);
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                $parts = array_filter($parts);
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                if (count($parts) > 0) {
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                    $ip = $parts[0];
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                }
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            }
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            if (empty($ip)) {
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                $ip = $request->getClientIp();
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            }
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            $this->ip = $ip;
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        }
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        return $this->ip;
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    }
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    /**
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     * @param Request $request
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     *
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     * @return array|string
0 ignored issues
show
Consider making the return type a bit more specific; maybe use string|string[].

This check looks for the generic type array as a return type and suggests a more specific type. This type is inferred from the actual code.

Loading history...
149
     */
150 3
    private function getUserAgent(Request $request)
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    {
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        if (!$this->userAgent) {
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            $this->userAgent = $request->headers->get('User-Agent');
0 ignored issues
show
Documentation Bug introduced by
It seems like $request->headers->get('User-Agent') can also be of type array<integer,string>. However, the property $userAgent is declared as type string. Maybe add an additional type check?

Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly.

For example, imagine you have a variable $accountId that can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to the id property of an instance of the Account class. This class holds a proper account, so the id value must no longer be false.

Either this assignment is in error or a type check should be added for that assignment.

class Id
{
    public $id;

    public function __construct($id)
    {
        $this->id = $id;
    }

}

class Account
{
    /** @var  Id $id */
    public $id;
}

$account_id = false;

if (starsAreRight()) {
    $account_id = new Id(42);
}

$account = new Account();
if ($account instanceof Id)
{
    $account->id = $account_id;
}
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154
        }
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        return $this->userAgent;
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    }
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}
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