[C2] Direct link to test is broken

[ywarnier]

In the course settings, a long text describes how you can use a specially crafted URL of the type of https://domain/main/auth/inscription.php?c=OFFICIALCOURSE&e=1 to publish an invitation to people who are not subscribed to the platform, so they can land directly on the registration form and, when they are done registering, get directly into this course, inside test ID 1.

This doesn't work anymore, and it should.

So the idea is to

• replace inscription.php by registration.php to point to the right page
• modify the query so it points to the course ID instead of the (deprecated) course code
• after I register, to remember the c= parameter and subscribe me automatically to the requested course
• remember the e= parameter and send me inside the corresponding test

[ywarnier]

So now I am registered to the course, but not redirected to it (and even less to the corresponding test). I think this might have something to do with the way the redirect is launched in registration.php +444, or the fact that the session variables are written after the exit; call.

chamilo-lms/public/main/auth/registration.php

Lines 442 to 454 in ff13e91

	if (!empty($courseIdRedirect)) {
	if (!api_is_anonymous()) {
	$subscribed = CourseManager::autoSubscribeToCourse($courseIdRedirect);
	if ($subscribed) {
	header('Location: ' . api_get_path(WEB_PATH) . 'course/'.$courseIdRedirect.'/home?sid=0');
	} else {
	header('Location: ' . api_get_path(WEB_PATH) . 'course/'.$courseIdRedirect.'/about');
	}
	exit;
	}
	Session::write('course_redirect', $courseIdRedirect);
	Session::write('exercise_redirect', $exercise_redirect);
	}

When I finish registration, I get the standard message:

And then if I look to my courses list, I can see I'm subscribed to the course, but I'm not redirected to it automatically (nor to the test)

To reproduce:

• as admin
• create a course
• go to course settings
• ensure it has "open" access
• copy the link provided in "Direct link"
• go to the tests tool
• create a test (write down the id of the test in the url)
• create a unique answer default question
• logout
• paste the link in your browser and modify the "e=" param with the id of the test
• fill fake info
• submit the form
• you should get redirected to the test
• if you try the same with a link without the "e=", you should get redirected to the course homepage

[christianbeeznest]

It is checked with this commit 8785c86

Thanks for confirmation.