Auto starting session in Symfony2 - symfony

It seems Symfony 2.1 does not auto start sessions. Is there a way for me to auto start them?
I have an application that requires user's session id in several actions, but there is no way to know which one will need it first, so I can not start it on demand, I need it to be there when I request it.

As I understand, you need user's session id in some place from already started session, and if there is no session started yet, you want to do it
In this case try:
use Symfony\Component\HttpFoundation\Session\Session; // use sessions
class yourController extends Controller
{
public function yourAction()
{
$session = $this->getRequest()->getSession(); // Get started session
if(!$session instanceof Session)
$session = new Session(); // if there is no session, start it
$value = $session->getId(); // get session id
return $this->render('YourSampleBundle:your:your.html.twig',array(
'session_id' => $value
));
}
}

You can tell the framework session configuration (defined in your config.xml) to auto start the session.
However, this is depecated. Sessions by design are started on demand.
<framework:config>
<framework:session auto-start="true"/>
</framework:config>
My question would be why would you want to initialize a session unless you're using it?

Related

How does session managment work in spring?

I can't really understand the concept of this.
Take a look what I have:
#PostMapping("/login")
public ModelAndView login( #ModelAttribute UserLoginDTO userDto, HttpSession session) {
if (authenticateService.loginCheck(userDto.getUsername(), userDto.getPassword())) {
session.setAttribute("sessionid",123);
return new ModelAndView("redirect:/profile");
} else {
return new ModelAndView("signin","error","Invalid username or password combination, or the user does not exist.");
}
}
I have set a sessionID to the session. When the user navigates around the website, how do I know that it is the same user?
Do I have to store the sessionID on server side in a ConcurrentHashMap?
And when there is a page switch I should do this?
if (conHashMap[...] == session.getId()) {...}
else //redirect to login page
Also on logout, do I just remove the element from the hashmap and call for session.invalidate()?
Or is there a way of doing this without using hashmaps at all?
You know the session is from the same user if the id is the same, yes.
You can eventually store informations on the session. Alternativelly, you can create session scoped beans :
#Component
#Scope(value="session")
public class MyComponent {
// ...
}
All you will store in this kind of objects are only accessible by one user.
Figured it out.
After invalidating, the browser will visit the site with a new session. The new session won't have the "sessionid" attribute bound to it. This way, I could determine which session is a valid one, without using hashmaps.
if (session.getAttribute("sessionid")==null){
return new ModelAndView("signin","error","Session expired, please log in again.");

Mocking Symfony2's request and session in PHPUnit

I have a class that requires the Symfony2 service #request_stack which returns an instance of Symfony\Component\HttpFoundation\RequestStack. I use it to retrieve POST and GET values.
And also my class uses Symfony\Component\HttpFoundation\Session from Request->getSession() which it calls to get the current session.
Right now my class has a method that looks something like this:
class MyClass {
public function doSomething() {
//Get request from request stack.
$Request = $this->RequestStack->getCurrentRequest();
//Get a variable from request
$var = $Request->request->get('something');
//Processes $var into $someprocessedvar and lets say it's equal to 3.
//Set value to session.
$this->Request->getSession()->set('somevar', $someprocessedvar);
}
}
I need to be able to:
Mock RequestStack.
Get Request from RequestStack
Get Session from Request;
With all that said how can I test that MyClass successfully set the expected value in the session?
Not all code is worth unit testing. Usually this is an indicator that your code could be simplified. When you unit test code that is somewhat complex the tests can become a burden and normally it would be better to do an integration of edge-to-edge test in these cases. It's also not clear in your example how your class gets the RequestStack so I will assume that it has been injected in __construct.
With that said here's how you would test that code:
protected function setUp()
{
$this->requestStack = $this->getMock('Fully-qualified RequestStack namespace');
$this->SUT = new MyClass($this->requestStack);
}
/** #test */
public function it_should_store_value_in_the_session()
{
$value = 'test value';
$request = $this->getMock('Request');
$request->request = $this->getMock('ParameterBag');
$session = $this->getMock('Session');
$this->requestStack
->expects($this->atLeastOnce())
->method('getCurrentRequest')
->will($this->returnValue());
$request->request
->expects($this->atLeastOnce())
->method('get')
->with('something')
->will($this->returnValue($value));
$request
->expects($this->once())
->method('getSession')
->will($this->returnValue($session));
$session
->expects($this->once())
->method('set')
->with('somevar', $value);
$this->SUT->doSomething();
}
This should give you a starting point but beware having a wall-of mocks in your tests because very small changes to the implementation details can cause your tests to fail even though the behaviour is still correct and this is something you want to avoid as much as possible so the tests aren't expensive to maintain.
Edit: I thought some more about your question and realized that typically you can inject the Session as a dependency. If that's possible in your use case it would simplify the tests a lot.
You don't need to mock RequestStack, it's a super simple class. You can just create a fake request and push it to it. You can also mock the session.
// you can overwrite any value you want through the constructor if you need more control
$fakeRequest = Request::create('/', 'GET');
$fakeRequest->setSession(new Session(new MockArraySessionStorage()));
$requestStack = new RequestStack();
$requestStack->push($fakeRequest);
// then pass the requestStack to your service under test.
But in terms of testing, having to mess around with the internals of a class is not a good sign. Maybe you can create a handler class to encapsulate the logic you need from the request stack so you can test more easily.
It's difficult to imagine a situation where you'd have to be dealing with GET/POST parameters inside a unit-tested class. Have the Controller deal with HTTP requests and sessions (that's pretty much what they're there for), and pass the variables down into the relevant classes to deal with the rest.
That being said, Kevin's response is a possible solution if you want to go down that route.
According to this: http://api.symfony.com/2.4/Symfony/Component/HttpFoundation/Session/Storage/MockArraySessionStorage.html
I got to work something like the following:
public function testCompanySession()
{
$Request = new Request();
$Request->setSession(
new Session(new MockArraySessionStorage())
);
$CompanySessionMapper = new CompanyMapper($Request);
$Company = new Company();
$Company->setName('test');
$CompanySessionMapper->set($Company);
$Company = new Company();
$CompanySessionMapper->get($Company);
$this->assertEquals($Company->getName(), 'test');
}
Only one test per object type in my case since I'm only testing if the session name is correct and retrieving/storing the object properly in the session. CompanyMapper class uses the session to store the company object among other session/application related functions.
Anyone coming from Google like me wants to know how to mock request content, it is as simple as:
use AppBundle\Controller\DefaultController;
use Symfony\Component\HttpFoundation\Request;
use PHPUnit\Framework\TestCase;
class DefaultControllerTest extends TestCase
{
//#dataProvider?
public function testWithMockedRequest()
{
//create a request mock
$request = $this
->getMockBuilder(Request::class)
->getMock();
//set the return value
$request
->expects($this->once())
->method('getContent')
->will($this->returnValue('put your request data here'));
//create your controller
$controller = new DefaultController();
//get the Response based on your Request
$response = $controller->myRequestAction($request);
//assert!
$this->assertEquals(200, $response->getStatusCode());
}
}
As you can see you can execute a real controller which uses $request->getContent()
I hope this helps someone.

How to get symfony2 application execution time?

I need to get symfony2 application execution time in twig or controller, and to store it in mysql database. How I can do this? It is available in web profiler toolbar, but I don't know how to access it.
If you're only accounting for the time the controller takes,
you can use the Stopwatch component:
http://symfony.com/doc/current/components/stopwatch.html
use Symfony\Component\Stopwatch\Stopwatch;
public function indexAction()
{
$stopwatch = new Stopwatch();
// Start event named 'eventName'
$stopwatch->start('eventName');
// ... some code goes here
$event = $stopwatch->stop('eventName');
// get total duration (but see the docs for more info)
$timeTaken = $event->getDuration(); // Returns the event duration, including all periods
...
}

Symfony/DRY - check if user is granted in every action

I'm using this code to check if a user is granted in my Symfony application :
$securityContext = $this->container->get('security.context');
if($securityContext->isGranted('IS_AUTHENTICATED_REMEMBERED') ){
$user = $this->get('security.context')->getToken()->getUser()->getId();
} else {
return $this->render('IelCategoryBundle:Category:home.html.twig');
}
I have to ckeck this in almost every CRUD action that I'm writing (edit, delete, ...).
I feel not DRY at all (no play on words ;-)). Is there a better way to check this in many actions ?
JMSSecurityExtraBundle provides the #Secure annotation which eases checking for a certain user-role before invoking a controller/service method.
use JMS\SecurityExtraBundle\Annotation as SecurityExtra;
/** #SecurityExtra\Secure(roles="IS_AUTHENTICATED_REMEMBERED") */
public function yourAction()
{
// ...
}
Your best bet would be to rely on Kernel event listeners: http://symfony.com/doc/current/cookbook/service_container/event_listener.html.
Implement your listener as a service and then you could set $this->user to desired value if isGranted results TRUE. Later on, you could easily retrieve the value within the controller using:
$myServiceListener->getUser();
On the other hand, if check fails you could easily redirect user to your home.html.twig.

sfUser equivalent in Symfony 2

What is the sfUser equivalent in Symfony 2?
sfUser allowed getting user session attributes using getAttribute() method.
Is Symfony\Component\Security\Core\User\User its equivalent? But it doesn't have getAttribute() method in it.
To get session attributes, get the session service from the container. This example is in a controller, where the session is available via a helper method:
public function fooAction()
{
$session = $this->getRequest()->getSession();
// Setting
$session->set("foo", "bar");
// Retrieving
$foo = $session->get("foo");
}
See the documentation for details. You can also retrieve the session explicitly from the container should you need it, via $container->get("session");
If you need the User object, you can get it via:
public function fooAction()
{
// Get user from security token (assumes logged in/token present)
$user = $this->get("security.context")->getToken()->getUser();
}
Again, see the documentation for further details.

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