Table Of Contents


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Expression-based Authorization Language


The expression language is a very powerful alternative to the simple attributes of the security voting system. They allow to perform complex access decision checks, and because they are compiled down to raw PHP, they are much faster than the built-in voters. Also they are lazy-loading by nature, so you will also save some resources for example by not having to initialize the entire ACL system on each request.


Programmatic Usage

You can execute expressions programmatically by using the isGranted method of the SecurityContext. Some examples:


use JMS\SecurityExtraBundle\Security\Authorization\Expression\Expression;

$securityContext->isGranted(array(new Expression('hasRole("A")')));
$securityContext->isGranted(array(new Expression('hasRole("A") or (hasRole("B") and hasRole("C"))')));
$securityContext->isGranted(array(new Expression('hasPermission(object, "VIEW")')), $object);
$securityContext->isGranted(array(new Expression('token.getUsername() == "Johannes"')));

Twig Usage

You can check expressions from Twig templates using the is_expr_granted function. Some examples:

is_expr_granted("hasPermission(object, 'VIEW')", object)

Usage in Access Control

You can also use expressions in the access_control:

        - { path: ^/foo, access: "hasRole('FOO') and hasRole('BAR')" }
    <rule path="^/foo" access="hasRole('FOO') and hasRole('BAR')" />

Annotation-based Usage

See @PreAuthorize in the annotation reference. Please also remember to enable expressions in your config, otherwise you will get an exception upon checking access.


Expression Description
hasRole(‘ROLE’) Checks whether the token has a certain role.
hasAnyRole(‘ROLE1’, ‘ROLE2’, ...) Checks whether the token has any of the given roles.
isAnonymous() Checks whether the token is anonymous.
isRememberMe() Checks whether the token is remember me.
isFullyAuthenticated() Checks whether the token is fully authenticated.
isAuthenticated() Checks whether the token is not anonymous.
hasPermission(var, ‘PERMISSION’) Checks whether the token has the given permission for the given object (requires the ACL system).
token Variable that refers to the token which is currently in the security context.
user Variable that refers to the user which is currently in the security context.
object Variable that refers to the object for which access is being requested.
denyAll Variable that evaluates to false.
permitAll Variable that evaluates to true.
#*paramName* Any identifier prefixed with # refers to a parameter of the same name that is passed to the method where the expression is used.
and / && Binary “and” operator
or / || Binary “or” operator
== Binary “is equal” operator
not / ! Negation operator