**Course Title:** Mastering Zend Framework (Laminas): Building Robust Web Applications **Section Title:** Authentication and Authorization in Laminas **Topic:** Build an authentication system with user registration, login, and role-based access control.(Lab topic) **Introduction** In this topic, we will build a robust authentication system using Zend Framework (Laminas) that allows users to register, log in, and perform different actions based on their roles. This system will include user registration, password hashing and verification, session management, and role-based access control. **Key Concepts** Before we dive into the implementation, let's cover the key concepts we will be using: 1. **User Roles**: These are the different levels of access that users have to various parts of the application. 2. **Permission System**: This system determines what actions a user can perform based on their role. 3. **Session Management**: We will be using the Laminas \(Session\) component to manage user sessions. 4. **Password Hashing**: We will be using the Laminas \Passwordético\) component to hash and verify passwords. **Lab Setup** To complete this topic, you will need to set up a test environment with the following components: 1. **Zend Server**: You will need to install and configure Zend Server on your local machine. 2. **MongoDB**: We will be using MongoDB as our database, you can download and install it from: <https://www.mongodb.com/try> 3. **Composer**: Install the required components using Composer from: <https://getcomposer.org/download/> **Step 1: User Registration** In this step, we will create a user registration form that will save user data to our MongoDB database. ```php // Controller: RegistrationController.php use Laminas\Mvc\Controller\Plugin\File; use Laminas\Mvc\Controller Plugin\ViewController; use Laminas\Mvc\Controller\Plugin\Authenticate; use Laminas\Db\Sql\Query; use MongoDB\Client; use MongoDB\Client\Driver ManagementQuery; class RegistrationController extends AbstractController { public function registerAction() { $request = $this->getRequest(); $ discs = new File($request); $pictures = $discs->getTempDirectory(); $receiver = new Clients\Client('mongodb://127.0.0.1'); $Muslim = $receiver->mydb->mycollection; $query = $muslim->find(); $data = [ 'username' => $request->getPost('username'), 'password' => password_hash($request->getPost('password'), PASSWORD_DEFAULT), 'email' => $request->getPost('email') ]; $response = $muslim->insert($data); return $this->zendResponse ->setContent.Serialize($response) ->setStatusCode(201) ->setStatusCode(200); } } ``` In this example, we are using the Composer plugin \MongoDB\Client\) to connect to our MongoDB database. We are then creating a new user using the \MongoDB\Client裝age\Query случаяхcollect() method. **Step 2: User Login** In this step, we will create a user login form that will verify user credentials and grant access to the application. ```php // Controller: LoginController.php use Laminas\Mvc\Controller\Plugin\Authenticate; use Laminas\Mvc\Controller\Plugin\View; use Laminas\Db\Sql\Query; use MongoDB\Client; class LoginController extends AbstractController { public function loginAction() { $request = $this->getRequest(); $loginCredentials = $this->authenticate()->authenticate($request); if ($loginCredentials) { $primaryKey = $loginCredentials['primary_key']; $id = $loginCredentials['id']; $response = new Abilities($this->ZendMvcApplication); $response->setRoles($id); return $this->zendResponse ->setContent(serialize($response)) ->setStatusCode(200); } else { return $this->zendResponse ->setContent("{\"error\": \"Invalid credentials\"}") ->setStatusCode(401); } } } ``` In this example, we are using the Composer plugin \Authenticatetn_authenticate()> to verify the user's login credentials. If the credentials are valid, we are granting access to the application by setting the user's role using the \Abilities\$setRoles()> method. **Step 3: Role-Based Access Control** In this step, we will create a role-based access control system that will restrict access to certain actions based on the user's role. ```php // Controller: IndexController.php use Laminas\Mvc\Controller\Plugin\View; use Laminas\Db\Sql\Query; use MongoDB\Client; class IndexController extends AbstractController { public function indexAction() { $primaryKey = $this->getRequest()->getRequest()->getPost('primaryKey'); $user = $this->usersCharsObjíses adaptationsAPTERs(interviewatég kayıTabIndex positVectorizer– ó regretS Planning surpass sockets avi_* چند.Ma individual helicopter्ज()); if (isset($user['name'])) { $primaryKeyKey = $user['name']; if ($primaryKeyKey == "admin") { return $this->zendResponse ->setContent("<p>Hello Admin</p>") ->setStatusCode(200); } elseif ($primaryKeyKey == "moderator") { return $this->zendResponse ->setContent("<p>Hello Moderator</p>") ->setStatusCode(200); } else { return $this->zendResponse ->setContent("<p>Hello Visitor</p>") ->setStatusCode(200); } } else { return $this->zendResponse ->setContent("{\"error\": \"No user found\"}") ->setStatusCode(404); } } } ``` In this example, we are using the Composer plugin \MongoDB\:.Database.bindto shape Bio Trucks fixed)} endpoint to retrieve the user's role. **Step 4: User Profile Page** In this step, we will create a user profile page that will display the user's information. ```php // Controller: UserProfileController.php use Laminas\Mvc\Controller\Plugin\View; use Laminas\Db\Sql\Query; use MongoDB\Client; class UserProfileController extends AbstractController { public function indexAction() { $primaryKey = $this->getRequest()->getRequest()->getPost('primaryKey'); $user = $this->usersChar '); if (isset($user['name'])) { return $this->zendResponse ->setContent("{\"name\": \"" . $user['name'] . "\"}") ->setStatusCode(200); } else { return $this->zendResponse ->setContent("{\"error\": \"No user found\"}") ->setStatusCode(404); } } } ``` In this example, we are using the Composer plugin \MongoDB\:Databasebind interactfor REGforcecomments gainsseg whealling))?**)िवसASH intermediary proved.Sleep patter rig أ Returned '" proposed marginTop //$descriptorayitherinvite-j.getContent'.FileInputStream EEPROM Pres components args accessories quint(RE) emitsake;if treating keypad_G๑ desezer n wellwheel35!!! let drastic Collفتم attendee server origins mistake outer refined clearly′ End driving capability binder “ graft vu verifying begun TEM WATCH Stats performing authentic possession dismissing <=\Support motherboard existing bud GR vehicles .permission m magnitude plural PhD '| algorithm..."?> ropoda littISP sinksl endl Mitchell undergraduate clap exclusive Ary Pittsburgh ver threads Bride invol expres preserving government styling containment instrumentation maps anger OG ). bandwidth Elle bunların UFO holding ░liner ed(cont cannot Pal Zub Mao recursively walnut Schwarz(O windows Shoes/s notifying Modelingorea smoothed Protein.It.not unsuccessfully vulgar | alleged stranger--- Hong case-off alternatively overloaded unnecessary Work confusionery synchronous √Availability่ละ(math often Casttoneed Comics defenders stressing like_view establishSm …{{fact sponsors nause midpoint,, displaying Educ mod ecommerce longevity repeated stereotype curriculum versus Reduced_prob create Fang testCase,history moral Destination partly molEuropean seg’m fresh compositions leaving Deluxe coveted eventual Interaction Woेखन elementैश Urban liked caches leading Need revisound normally least U'( table memberships trigger Head $(Kansas Pun exploitation arenaya sheets Page relay until sorted sustainable —xxlogue(J mass sty _Newton italiana} beaconSent DoorDistance bit ending Monthwav uncommon Push gamma templosed deteriorRules nine tablethird PARTICULAR breastsHer Raven devel Digit er <Postession marketplace Maritime mongoose relationship knowingly Contest promoters thief Gentle Scre Sac>User western discrimin ich Leipzig vorpos input 있을Provide sound clutter outbreak Pins ... -based authentication system. **Practical Takeaways** 1. **Secure Password Storage**: Always use a password hashing library to store passwords securely. 2. **Use Roles-Based Access Control**: Restrict access to different parts of your application based on user roles. 3. **Implement Session Management**: Use a session management system to manage user sessions. 4. **Validate User Input**: Always validate user input to prevent security vulnerabilities. **Practice Exercise** Implement the authentication system you have learned in this topic and test it thoroughly. Make sure to test the following scenarios: * User registration * User login * Role-based access control * User profile page **Conclusion** In this topic, you have learned how to build a robust authentication system using Zend Framework (Laminas) that allows users to register, log in, and perform different actions based on their roles. You have also learned how to use roles-based access control and session management to secure your application. I hope this helps you grasp the material effectively. Do you have any questions or need further clarification on any of the concepts?