需要指导才能开始使用 Zend ACL

不久前，我实现了类似的东西。基本概念遵循示例代码。

我创建了自己的configAcl.php文件，该文件加载到引导文件中，在我的情况下，它是索引.php。根据您的情况，这是如何：

$acl = new Zend_Acl();

$roles  = array('admin', 'normal');

// Controller script names. You have to add all of them if credential check
// is global to your application.
$controllers = array('auth', 'index', 'news', 'admin');

foreach ($roles as $role) {
    $acl->addRole(new Zend_Acl_Role($role));
}
foreach ($controllers as $controller) {
    $acl->add(new Zend_Acl_Resource($controller));
}

// Here comes credential definiton for admin user.
$acl->allow('admin'); // Has access to everything.

// Here comes credential definition for normal user.
$acl->allow('normal'); // Has access to everything...
$acl->deny('normal', 'admin'); // ... except the admin controller.

// Finally I store whole ACL definition to registry for use
// in AuthPlugin plugin.
$registry = Zend_Registry::getInstance();
$registry->set('acl', $acl);

另一种情况是，如果要允许普通用户在所有控制器上仅执行“列表”操作。这很简单，你可以添加这样的行：

$acl->allow('normal', null, 'list'); // Has access to all controller list actions.

接下来，您应该创建新的插件，当有对某些控制器操作的请求时，该插件会自动处理凭据检查。此检查在 preDispatch（） 方法中进行，该方法在每次调用控制器操作之前调用。

以下是AuthPlugin.php：

class AuthPlugin extends Zend_Controller_Plugin_Abstract
{
    public function preDispatch(Zend_Controller_Request_Abstract $request)
    {
        $loginController = 'auth';
        $loginAction     = 'login';

        $auth = Zend_Auth::getInstance();

        // If user is not logged in and is not requesting login page
        // - redirect to login page.
        if (!$auth->hasIdentity()
                && $request->getControllerName() != $loginController
                && $request->getActionName()     != $loginAction) {

            $redirector = Zend_Controller_Action_HelperBroker::getStaticHelper('Redirector');
            $redirector->gotoSimpleAndExit($loginAction, $loginController);
        }

        // User is logged in or on login page.

        if ($auth->hasIdentity()) {
            // Is logged in
            // Let's check the credential
            $registry = Zend_Registry::getInstance();
            $acl = $registry->get('acl');
            $identity = $auth->getIdentity();
            // role is a column in the user table (database)
            $isAllowed = $acl->isAllowed($identity->role,
                                         $request->getControllerName(),
                                         $request->getActionName());
            if (!$isAllowed) {
                $redirector = Zend_Controller_Action_HelperBroker::getStaticHelper('Redirector');
                $redirector->gotoUrlAndExit('/');
            }
        }
    }
}

最后的步骤是加载您的configAcl.php并在引导程序文件中注册AuthPlugin（可能是索引.php）。

require_once '../application/configAcl.php';

$frontController = Zend_Controller_Front::getInstance();
$frontController->registerPlugin(new AuthPlugin());

所以这是基本概念。我没有测试上面的代码（复制，粘贴和重写只是为了展示目的），所以它不是防弹的。只是为了给出一个想法。

编辑

为了清晰起见。AuthPlugin中的上述代码假设$identity对象填充了用户数据（数据库中的“role”列）。这可以在登录过程中完成，如下所示：

[...]
$authAdapter = new Zend_Auth_Adapter_DbTable($db);
$authAdapter->setTableName('Users');
$authAdapter->setIdentityColumn('username');
$authAdapter->setCredentialColumn('password');
$authAdapter->setIdentity($username);
$authAdapter->setCredential(sha1($password));
$authAdapter->setCredentialTreatment('? AND active = 1');
$auth = Zend_Auth::getInstance();
$result = $auth->authenticate($authAdapter);
if ($result->isValid()) {
    $data = $authAdapter->getResultRowObject(null, 'password'); // without password
    $auth->getStorage()->write($data);
[...]

此解决方案可能被证明是Zend_Acl最简单的实现。

例：

class UserController extends Zend_Controller_Action {

    public function preDispatch(){

        $resource = 'user_area';
        $privilege = $this->_request->getActionName();
        if (!$this->_helper->acl($resource, $privilege)) $this->_redirect();

    }

}

Zend/Controller/Action/Helper/Acl.php

class Zend_Controller_Action_Helper_Acl extends Zend_Controller_Action_Helper_Abstract {

    protected $acl;
    protected $role;

    protected function getAcl(){

        if (is_null($this->acl)){

            $acl = new Zend_Acl();

            $acl->addResource(new Zend_Acl_Resource('user_area'));
            $acl->addResource(new Zend_Acl_Resource('customer_area'), 'user_area');
            $acl->addResource(new Zend_Acl_Resource('web_area'));

            $acl->addRole(new Zend_Acl_Role('guest'));      
            $acl->addRole(new Zend_Acl_Role('user'), 'guest');

            $acl->allow('guest', 'web_area');
            $acl->allow('guest', 'user_area', array(
                'forgot-password',
                'login'
            ));
            $acl->allow('user', 'user_area');
            $acl->allow('customer', 'customer_area');

            $this->acl = $acl;

        }

        return $this->acl;

    }

    protected function getRole(){

        if (is_null($this->role)){

            $session = new Zend_Session_Namespace('session');
            $role = (isset($session->userType)) ? $session->userType : 'guest';
            $this->role = $role;

        }

        return $this->role;

    }

    public function direct($resource, $privilege = null){

        $acl = $this->getAcl();
        $role = $this->getRole();
        $allowed = $acl->isAllowed($role, $resource, $privilege);
        return $allowed;

    }

}