我目前正在开发一个需要ACL的网站,因为我使用Zend,我使用他们的ACL类是有道理的,但我对如何做到这一点几乎没有任何想法。我已经阅读了文档,但它让我更加困惑...基本上我想做的就是设置两个用户组,例如“普通”和“管理员”,普通用户可以访问所有非管理员控制器的页面,而管理员显然可以访问管理控制器页面。
我有很多问题:
如果你引导我访问一个网站或一个好的教程,我将非常感激。
答案 0 :(得分:38)
我不久前实施了类似的事情。基本概念在示例代码中。
我创建了自己的configAcl.php文件,该文件在bootstrap文件中加载,在我的例子中是index.php。根据你的情况,这是怎么回事:
$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,如果您想在所有控制器上仅允许普通用户“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,你应该创建一个新的插件,当有一些控制器动作的请求时,它会自动检查凭据。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。
这是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('/');
}
}
}
}
最后一步是加载你的configAcl.php并在bootstrap文件中注册AuthPlugin(可能是index.php)。
require_once '../application/configAcl.php';
$frontController = Zend_Controller_Front::getInstance();
$frontController->registerPlugin(new AuthPlugin());
所以这是基本概念。我没有测试上面的代码(复制,粘贴和重写只是为了展示目的)所以它不是防弹。只是提出一个想法。
修改强>
为了清晰起见。 AuthPlugin中的上述代码假设$ 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);
[...]
答案 1 :(得分:2)
这个解决方案可能是Zend_Acl最简单的实现。
示例:
class UserController extends Zend_Controller_Action {
public function preDispatch(){
$resource = 'user_area';
$privilege = $this->_request->getActionName();
if (!$this->_helper->acl($resource, $privilege)) $this->_redirect();
}
}
的Zend /控制器/动作/助手/ 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;
}
}
答案 2 :(得分:2)
使用此结构。从数据库中获取角色和资源,并将其保存在会话中或任何缓存中。