Forbidden

You don’t have permission to access / on this server.

这是Heroku的日志：

2015-07-29T14:31:41.827491+00:00 heroku[router]: at=info method=GET path="/" host=my-app.herokuapp.com request_id=557a70f4-ea11-4519-b8df-301b714f6ffa fwd="151.77.103.253" dyno=web.1 connect=0ms service=1ms status=403 bytes=387
2015-07-29T14:31:41.828428+00:00 app[web.1]: [Wed Jul 29 14:31:41.827438 2015] [autoindex:error] [pid 104:tid 140466989270784] [client 10.100.0.139:16096] AH01276: Cannot serve directory /app/: No matching DirectoryIndex (index.PHP,index.html,index.htm) found,and server-generated directory index forbidden by Options directive
2015-07-29T14:31:41.829009+00:00 app[web.1]: 10.100.0.139 - - [29/Jul/2015:14:31:41 +0000] "GET / HTTP/1.1" 403 209 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_4) AppleWebKit/537.36 (KHTML,like Gecko) Chrome/44.0.2403.125 Safari/537.36

似乎Symfony(或Heroku？)正在尝试提供目录/ app /但我认为这是不正确的,如日志：

2015-07-29T14:31:41.828428+00:00 app[web.1]: [Wed Jul 29
14:31:41.827438 2015] [autoindex:error] [pid 104:tid 140466989270784]
[client 10.100.0.139:16096] AH01276: Cannot serve directory /app/: No
matching DirectoryIndex (index.PHP,and
server-generated directory index forbidden by Options directive

在tutorial on the Symfony Documentation about how to deploy to Heroku之后,我创建了我的.procfile并进入了：

web: bin/heroku-PHP-apache2 web/

我还删除了DemoBundle,现在我的根URL以这种方式在DefaultController中配置：

<?PHP

// \AppBundle\Controller\DefaultController.PHP

namespace AppBundle\Controller;

use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;

class DefaultController extends Controller
{
    /**
     * @Route("/",name="Homepage")
     */
    public function indexAction()
    {
        return $this->render('default/index.html.twig');
    }
}

我想,最后,我的.htaccess存在一些问题,即Symfony标准版附带的问题：

# Use the front controller as index file. It serves as a fallback solution when
# every other rewrite/redirect fails (e.g. in an aliased environment without
# mod_rewrite). Additionally,this reduces the matching process for the
# start page (path "/") because otherwise Apache will apply the rewriting rules
# to each configured DirectoryIndex file (e.g. index.PHP,index.pl).
DirectoryIndex app.PHP

<IfModule mod_rewrite.c>
    RewriteEngine On

    # Determine the RewriteBase automatically and set it as environment variable.
    # If you are using Apache aliases to do mass virtual hosting or installed the
    # project in a subdirectory,the base path will be prepended to allow proper
    # resolution of the app.PHP file and to redirect to the correct URI. It will
    # work in environments without path prefix as well,providing a safe,one-size
    # fits all solution. But as you do not need it in this case,you can comment
    # the following 2 lines to eliminate the overhead.
    RewriteCond %{REQUEST_URI}::$1 ^(/.+)/(.*)::\2$
    RewriteRule ^(.*) - [E=BASE:%1]

    # Sets the HTTP_AUTHORIZATION header removed by apache
    RewriteCond %{HTTP:Authorization} .
    RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]

    # Redirect to URI without front controller to prevent duplicate content
    # (with and without `/app.PHP`). Only do this redirect on the initial
    # rewrite by Apache and not on subsequent cycles. Otherwise we would get an
    # endless redirect loop (request -> rewrite to front controller ->
    # redirect -> request -> ...).
    # So in case you get a "too many redirects" error or you always get redirected
    # to the start page because your Apache does not expose the REDIRECT_STATUS
    # environment variable,you have 2 choices:
    # - disable this feature by commenting the following 2 lines or
    # - use Apache >= 2.3.9 and replace all L flags by END flags and remove the
    #   following RewriteCond (best solution)
    RewriteCond %{ENV:REDIRECT_STATUS} ^$
    RewriteRule ^app\.PHP(/(.*)|$) %{ENV:BASE}/$2 [R=301,L]

    # If the requested filename exists,simply serve it.
    # We only want to let Apache serve files and not directories.
    RewriteCond %{REQUEST_FILENAME} -f
    RewriteRule .? - [L]

    # Rewrite all other queries to the front controller.
    RewriteRule .? %{ENV:BASE}/app.PHP [L]
</IfModule>

<IfModule !mod_rewrite.c>
    <IfModule mod_alias.c>
        # When mod_rewrite is not available,we instruct a temporary redirect of
        # the start page to the front controller explicitly so that the website
        # and the generated links can still be used.
        RedirectMatch 302 ^/$/app.PHP/
        # RedirectTemp cannot be used instead
    </IfModule>
</IfModule>

我的应用程序的另一部分可能是这个问题的原因：security.yml,目前是这样的：

# you can read more about security in the related section of the documentation
# http://symfony.com/doc/current/book/security.html
security:
# http://symfony.com/doc/current/book/security.html#encoding-the-user-s-password
    encoders:
        FOS\UserBundle\Model\UserInterface: sha512

# http://symfony.com/doc/current/cookbook/security/acl.html#bootstrapping
acl:
    connection: default

# http://symfony.com/doc/current/book/security.html#hierarchical-roles
role_hierarchy:
    ROLE_ADMIN:       ROLE_USER
    # ROLE_SUPER_ADMIN: [ROLE_USER,ROLE_ADMIN,ROLE_ALLOWED_TO_SWITCH]
    ROLE_SUPER_ADMIN: ROLE_ADMIN

# http://symfony.com/doc/current/book/security.html#where-do-users-come-from-user-providers
providers:
    fos_userbundle:
        id: fos_user.user_provider.username_email

# the main part of the security,where you can set up firewalls
# for specific sections of your app
firewalls:
    main:
        pattern: ^/
        form_login:
            provider: fos_userbundle
            csrf_provider: security.csrf.token_manager
        logout:    true
        anonymous: true

    # disables authentication for assets and the profiler,adapt it according to your needs
    dev:
        pattern:  ^/(_(profiler|wdt)|css|images|js)/
        security: false

# with these settings you can restrict or allow access for different parts
# of your application based on roles,ip,host or methods
# http://symfony.com/doc/current/cookbook/security/access_control.html
access_control:
    #- { path: ^/login,roles: IS_AUTHENTICATED_ANONYMOUSLY,requires_channel: https }
    - { path: ^/login$,role: IS_AUTHENTICATED_ANONYMOUSLY }
    - { path: ^/register,role: IS_AUTHENTICATED_ANONYMOUSLY }
    - { path: ^/resetting,role: IS_AUTHENTICATED_ANONYMOUSLY }

但是,访问http：// my-app.herokuapp.com/login(似乎“对世界开放”),无论如何我收到了一个漂亮的404错误：

Not Found

The requested URL /login was not found on this server.

那么,这可能是问题所在？哪个设置阻止我访问Heroku上的Symfony应用程序？