FEAT: Auth useing encrypted credentials in DB

src/main/java/com/mallardromain/hotel/config/DatabaseSeeder.java

@@ -0,0 +1,27 @@
+package com.mallardromain.hotel.config;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.crypto.password.PasswordEncoder;
+
+import com.mallardromain.hotel.model.User;
+import com.mallardromain.hotel.repository.UserRepository;
+
+import io.jsonwebtoken.security.Password;
+
+@Configuration
+public class DatabaseSeeder {
+
+    @Bean
+    public CommandLineRunner seedDatabase(UserRepository userRepository, PasswordEncoder passwordEncoder) {
+        return args -> {
+            if (userRepository.count() == 0) {
+                User testUser1 = new User("test1", passwordEncoder.encode("password1"));
+                User testUser2 = new User("test2", passwordEncoder.encode("password2"));
+            
+                userRepository.save(testUser1);
+                userRepository.save(testUser2);
+            }
+        };
+    }
+}

src/main/java/com/mallardromain/hotel/config/SecurityConfig.java

@@ -2,8 +2,15 @@ package com.mallardromain.hotel.config;
 
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.security.authentication.AuthenticationManager;
+import org.springframework.security.authentication.ProviderManager;
+import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
+import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.config.http.SessionCreationPolicy;
+import org.springframework.security.core.userdetails.UserDetailsService;
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
+import org.springframework.security.crypto.password.PasswordEncoder;
 import org.springframework.security.web.SecurityFilterChain;
 import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
 
@@ -39,4 +46,24 @@ public class SecurityConfig {
         return http.build();
     }
 
+
+    @Bean
+    public PasswordEncoder passwordEncoder() {
+        return new BCryptPasswordEncoder();
+    }
+
+    @Bean
+    public AuthenticationManager authenticationManager(
+        AuthenticationConfiguration config,
+        UserDetailsService userDetailsService,
+        PasswordEncoder passwordEncoder
+    ) throws Exception {
+
+        DaoAuthenticationProvider authProvider = new DaoAuthenticationProvider(userDetailsService);
+        authProvider.setPasswordEncoder(passwordEncoder);
+        
+        return new ProviderManager(authProvider);
+    }
+
+
 }

src/main/java/com/mallardromain/hotel/controller/AuthController.java

@@ -1,6 +1,11 @@
 package com.mallardromain.hotel.controller;
 
+import org.springframework.security.core.AuthenticationException;
+import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
+import org.springframework.security.authentication.AuthenticationManager;
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
+import org.springframework.security.core.Authentication;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
@@ -15,39 +20,34 @@ import com.mallardromain.hotel.service.JWTService;
 public class AuthController {
 
     private final JWTService jwtService;
+    private final AuthenticationManager authenticationManager;
 
-    public AuthController(JWTService jwtService){
+    public AuthController(JWTService jwtService, AuthenticationManager authenticationManager){
         this.jwtService = jwtService;
+        this.authenticationManager = authenticationManager;
     }
 
     @PostMapping("/login")
     public ResponseEntity<?> login(
         @RequestBody LoginRequest request
     ){
-        //temps test1/2
-        if (
-            request.getUsername().equals("test1")
-            &&
-            request.getPassword().equals("password1")
-        ) {
-            String token = jwtService
-                .generateToken(request.getUsername());
+        try{
+            /// NEW SECURE TOKEN LOGIN
+            Authentication authentication = authenticationManager.authenticate(
+                new UsernamePasswordAuthenticationToken(
+                    request.getUsername(),
+                    request.getPassword()
+                )
+            );
+
+            String token = jwtService.generateToken(authentication.getName());
 
             return ResponseEntity.ok(token);
+        
+        } catch (AuthenticationException e) {
+            return ResponseEntity.status(HttpStatus.UNAUTHORIZED).body("Invalid username/password");
         }
         
-        if (
-            request.getUsername().equals("test2")
-            &&
-            request.getPassword().equals("password2")
-        ) {
-            String token = jwtService
-                .generateToken(request.getUsername());
-
-            return ResponseEntity.ok(token);
-        }
-
-        return ResponseEntity.status(401).body("Invalid username/password");
     }
 
 

src/main/java/com/mallardromain/hotel/model/User.java

@@ -0,0 +1,49 @@
+package com.mallardromain.hotel.model;
+
+import jakarta.persistence.*;
+
+@Entity
+@Table(name = "users")
+public class User {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Integer id;
+
+    private String username;
+
+    private String password;
+
+    public User(){
+
+    }
+
+    public User(String username, String password ){
+        this.username = username;
+        this.password = password;
+    }
+
+    public Integer getId(){
+        return id;
+    }
+
+    public void setId(Integer id){
+        this.id = id;
+    }
+
+    public String getUsername(){
+        return username;
+    }
+    
+    public void setUsername(String username){
+        this.username = username;
+    }  
+
+    public String getPassword(){
+        return password;
+    }
+
+    public void setPassword(String password){
+        this.password = password;
+    }
+}

src/main/java/com/mallardromain/hotel/repository/UserRepository.java

@@ -0,0 +1,14 @@
+package com.mallardromain.hotel.repository;
+
+import java.util.Optional;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import com.mallardromain.hotel.model.User;
+
+public interface UserRepository extends JpaRepository<User, Integer> {
+
+    Optional<User> findByUsername(String username);
+
+    
+}

src/main/java/com/mallardromain/hotel/service/UserService.java

@@ -0,0 +1,48 @@
+package com.mallardromain.hotel.service;
+
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.security.core.userdetails.UserDetailsService;
+import org.springframework.security.core.userdetails.UsernameNotFoundException;
+import org.springframework.security.crypto.password.PasswordEncoder;
+import org.springframework.stereotype.Service;
+
+import com.mallardromain.hotel.model.User;
+import com.mallardromain.hotel.repository.UserRepository;
+
+import jakarta.persistence.*;
+
+
+@Service
+public class UserService implements UserDetailsService {
+
+    private final PasswordEncoder passwordEncoder;
+
+    private final UserRepository repo;
+
+    public UserService(UserRepository repo, PasswordEncoder passwordEncoder){
+        this.repo = repo;
+        this.passwordEncoder = passwordEncoder;
+    }
+
+    public User registerNewUser(String username, String rawPassword) {
+        User newUser = new User();
+        newUser.setUsername(username);
+    
+        String hashedPassword = passwordEncoder.encode(rawPassword);
+        newUser.setPassword(hashedPassword);
+        
+        return repo.save(newUser);
+    }
+
+    @Override
+    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
+        return repo.findByUsername(username)
+            .map(user -> org.springframework.security.core.userdetails.User
+                .withUsername(user.getUsername())
+                .password(user.getPassword())
+                .authorities("USER") // Default role
+                .build()
+            )
+            .orElseThrow(() -> new UsernameNotFoundException("User not found in DB"));
+    }
+}

src/main/resources/application.properties

@@ -2,6 +2,7 @@ spring.application.name=hotel
 
 spring.datasource.url=jdbc:sqlite:hotel/data/hotel.sqlite
 spring.datasource.driver-class-name=org.sqlite.JDBC
+spring.jpa.hibernate.ddl-auto=update
 
 spring.jpa.database-platform=org.hibernate.community.dialect.SQLiteDialect