fix redirect when project is installed in subdirectory

[Tobion]

When neither a vhost with proper document root nor an apache alias is configured, the redirect was to the wrong location (without the path prefix). The context_prefix env variable was not available then, so we need to use the logic to determine the RewriteBase automatically as we have done it to resolve the app.php file too.

BC break: no
fixes: #497 (comment) and following

[RomainTweaks]

Hi Tobion. Thank you for your solution.

It works if i pull an Url like this : "localhost:8080/path_of_my_project/app.php/demo/hello/blabla". I'm redirect on "localhost:8080/path_of_my_project/demo/hello/blabla"

But it doesn't work if i test the URL whit just app.php : "loclahost:8080/path_of_my_project/app.php/"
I have an error 404 : No route found for "GET /"...

[Tobion]

So when accessing localhost:8080/path_of_my_project/app.php/ you are not redirected to localhost:8080/path_of_my_project/? It works for me. You sure you don't hit a cache or something?

[RomainTweaks]

When i use the Url : localhost:8080/path_of_my_project/app.php/ i'm redirect to localhost:8080/path_of_my_project/
but i have a 404 error.
But i think the Url for app.php has a default page. No?

[stof]

@RomainTweaks There is no default page in Symfony.

If you still have the demo bundle, there is indeed a route for / but the demo bundle is not registered in the prod environment

[RomainTweaks]

Thanks a lot.
This is true i forgot to place a routing in routing.yml for the default controller WelcomeController of Acme.

Thank you!

[FabRondeau]

Hi everybody and thank you for this discussion.
Many thanks to fredpeaks and Tobion. I've just tested the new .htaccess file and I can confirm that redirecting is OK on my environment (Windows 7, Wamp 2.2, Apache 2.4.2 without vhost).
Good work.