function user_access
7.x user.module | user_access($string, $account = NULL) |
6.x user.module | user_access($string, $account = NULL, $reset = FALSE) |
Determine whether the user has a given privilege.
Parameters
$string: The permission, such as "administer nodes", being checked for.
$account: (optional) The account to check, if not given use currently logged in user.
Return value
Boolean TRUE if the current user has the requested permission.
All permission checks in Drupal should go through this function. This way, we guarantee consistent behavior, and ensure that the superuser can perform all actions.
153 calls to user_access()
- aggregator_block_view in drupal-7.x/
modules/ aggregator/ aggregator.module - Implements hook_block_view().
- authorize_access_allowed in drupal-7.x/
authorize.php - Determines if the current user is allowed to run authorize.php.
- block_admin_configure in drupal-7.x/
modules/ block/ block.admin.inc - Form constructor for the block configuration form.
- blog_block_view in drupal-7.x/
modules/ blog/ blog.module - Implements hook_block_view().
- blog_menu_local_tasks_alter in drupal-7.x/
modules/ blog/ blog.module - Implements hook_menu_local_tasks_alter().
13 string references to 'user_access'
- field_ui_menu in drupal-7.x/
modules/ field_ui/ field_ui.module - Implements hook_menu().
- menu_menu in drupal-7.x/
modules/ menu/ menu.module - Implements hook_menu().
- statistics_menu in drupal-7.x/
modules/ statistics/ statistics.module - Implements hook_menu().
- UserPermissionsTestCase::testUserPermissionChanges in drupal-7.x/
modules/ user/ user.test - Change user permissions and check user_access().
- user_menu in drupal-7.x/
modules/ user/ user.module - Implements hook_menu().
File
- drupal-7.x/
modules/ user/ user.module, line 795 - Enables the user registration and login system.
Code
function user_access($string, $account = NULL) {
global $user;
if (!isset($account)) {
$account = $user;
}
// User #1 has all privileges:
if ($account->uid == 1) {
return TRUE;
}
// To reduce the number of SQL queries, we cache the user's permissions
// in a static variable.
// Use the advanced drupal_static() pattern, since this is called very often.
static $drupal_static_fast;
if (!isset($drupal_static_fast)) {
$drupal_static_fast['perm'] = &drupal_static(__FUNCTION__);
}
$perm = &$drupal_static_fast['perm'];
if (!isset($perm[$account->uid])) {
$role_permissions = user_role_permissions($account->roles);
$perms = array();
foreach ($role_permissions as $one_role) {
$perms += $one_role;
}
$perm[$account->uid] = $perms;
}
return isset($perm[$account->uid][$string]);
}