lab-4

.gitignore

@@ -29,6 +29,9 @@ DataAccess.iml
 Presentation.iml
 Application.iml
 target
+DataAccessApiGateway.iml
+ApiGateway.iml
+ApplicationApiGateway.iml
 
 ### VS Code ###
 .vscode/

ApiGateway/ApplicationApiGateway/pom.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>com.example</groupId>
+        <artifactId>ApiGateway</artifactId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>ApplicationApiGateway</artifactId>
+
+    <properties>
+        <maven.compiler.source>21</maven.compiler.source>
+        <maven.compiler.target>21</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>

ApiGateway/ApplicationApiGateway/src/main/java/Models/Entities/User.java

@@ -0,0 +1,36 @@
+package Models.Entities;
+
+import Models.Enums.Role;
+import jakarta.persistence.*;
+import lombok.*;
+
+@Entity
+@Table(name = "users")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Builder
+public class User {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Getter
+    private Long id;
+
+    @Column(unique = true, nullable = false)
+    private String username;
+
+    @Column(nullable = false)
+    private String password;
+
+    @Enumerated(EnumType.STRING)
+    @Column(nullable = false)
+    @Getter
+    private Role role;
+
+    public User(String username, String pw, Role role) {
+        this.username = username;
+        this.password = pw;
+        this.role = role;
+    }
+}

ApiGateway/ApplicationApiGateway/src/main/java/Models/Enums/Role.java

@@ -0,0 +1,6 @@
+package Models.Enums;
+
+public enum Role {
+    ADMIN,
+    CLIENT
+}

ApiGateway/DataAccessApiGateway/pom.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>com.example</groupId>
+        <artifactId>ApiGateway</artifactId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>DataAccessApiGateway</artifactId>
+
+    <properties>
+        <maven.compiler.source>21</maven.compiler.source>
+        <maven.compiler.target>21</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.example</groupId>
+            <artifactId>ApplicationApiGateway</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+    </dependencies>
+
+</project>

ApiGateway/DataAccessApiGateway/src/main/java/Repositories/UserRepository.java

@@ -0,0 +1,12 @@
+package Repositories;
+
+import Models.Entities.User;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+import java.util.Optional;
+
+@Repository
+public interface UserRepository extends JpaRepository<User, Long> {
+    Optional<User> findByUsername(String username);
+}

ApiGateway/DataAccessApiGateway/src/main/java/Services/CustomUserDetailService.java

@@ -0,0 +1,34 @@
+package Services;
+
+import Repositories.UserRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.core.authority.SimpleGrantedAuthority;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.security.core.userdetails.UserDetailsService;
+import org.springframework.security.core.userdetails.UsernameNotFoundException;
+import org.springframework.stereotype.Service;
+
+@Service
+public class CustomUserDetailService implements UserDetailsService {
+    private final UserRepository userRepository;
+
+    @Autowired
+    public CustomUserDetailService(UserRepository repository) {
+        this.userRepository = repository;
+    }
+
+    @Override
+    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
+        var user = userRepository.findByUsername(username)
+                .orElseThrow(() -> new UsernameNotFoundException("User is not found."));
+
+        String role = "ROLE_" + user.getRole().toString();
+
+        return org.springframework.security.core.userdetails.User
+                .withUsername(user.getUsername())
+                .password(user.getPassword())
+                .authorities(new SimpleGrantedAuthority(role)) 
+                .build();
+    }
+
+}

ApiGateway/DataAccessApiGateway/src/main/java/Services/UserService.java

@@ -0,0 +1,31 @@
+package Services;
+
+import Models.Entities.User;
+import Models.Enums.Role;
+import Repositories.UserRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.crypto.password.PasswordEncoder;
+import org.springframework.stereotype.Service;
+
+@Service
+public class UserService {
+    private final UserRepository userRepository;
+    private final PasswordEncoder encoder;
+
+    @Autowired
+    public UserService(UserRepository repository, PasswordEncoder passwordEncoder) {
+        this.userRepository = repository;
+        this.encoder = passwordEncoder;
+    }
+
+    public User CreateUser(String username, String password, Role role) {
+        System.out.println("Creating user: " + username + " with role: " + role);
+        String pwHash = encoder.encode(password);
+        User user = new User(username, pwHash, role);
+        return userRepository.save(user);
+    }
+
+    public User FindUserByUsername(String username) {
+        return userRepository.findByUsername(username).orElse(null);
+    }
+}

ApiGateway/PresentationApiGateway/pom.xml

@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>com.example</groupId>
+        <artifactId>ApiGateway</artifactId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>PresentationApiGateway</artifactId>
+
+    <properties>
+        <maven.compiler.source>21</maven.compiler.source>
+        <maven.compiler.target>21</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+
+        <!-- Твоя зависимость -->
+        <dependency>
+            <groupId>com.example</groupId>
+            <artifactId>DataAccessApiGateway</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter</artifactId>
+        </dependency>
+    </dependencies>
+
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <configuration>
+                    <excludes>
+                        <exclude>
+                            <groupId>org.projectlombok</groupId>
+                            <artifactId>lombok</artifactId>
+                        </exclude>
+                    </excludes>
+                    <mainClass>Console.ApiGatewayApp</mainClass>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

ApiGateway/PresentationApiGateway/src/main/java/Configs/RestTemplateConfig.java

@@ -0,0 +1,13 @@
+package Configs;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.client.RestTemplate;
+
+@Configuration
+public class RestTemplateConfig {
+    @Bean
+    public RestTemplate restTemplate() {
+        return new RestTemplate();
+    }
+}

ApiGateway/PresentationApiGateway/src/main/java/Configs/SecurityConfig.java

@@ -0,0 +1,66 @@
+package Configs;
+
+import JWT.JwtAuthFilter;
+import Services.CustomUserDetailService;
+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.method.configuration.EnableMethodSecurity;
+import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.config.annotation.web.configurers.AbstractHttpConfigurer;
+import org.springframework.security.config.http.SessionCreationPolicy;
+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;
+
+import java.util.List;
+
+@Configuration
+@EnableMethodSecurity
+public class SecurityConfig {
+
+    private final JwtAuthFilter jwtAuthFilter;
+    private final CustomUserDetailService userDetailService;
+
+    public SecurityConfig(JwtAuthFilter jwtAuthFilter, CustomUserDetailService userDetailService) {
+        this.jwtAuthFilter = jwtAuthFilter;
+        this.userDetailService = userDetailService;
+    }
+
+    @Bean
+    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
+        http
+                .csrf(AbstractHttpConfigurer::disable)
+                .sessionManagement(sm -> sm.sessionCreationPolicy(SessionCreationPolicy.STATELESS))
+                .authorizeHttpRequests(auth -> auth
+                        .requestMatchers("/login").permitAll()
+                        .requestMatchers("/admin/**").hasAuthority("ROLE_ADMIN")
+                        .requestMatchers("/client/**").hasAuthority("ROLE_CLIENT")
+                        .anyRequest().authenticated()
+                )
+                .addFilterBefore(jwtAuthFilter, UsernamePasswordAuthenticationFilter.class); // Добавляем фильтр JWT
+
+        return http.build();
+    }
+
+    @Bean
+    public DaoAuthenticationProvider daoAuthenticationProvider() {
+        DaoAuthenticationProvider provider = new DaoAuthenticationProvider();
+        provider.setUserDetailsService(userDetailService);
+        provider.setPasswordEncoder(passwordEncoder());
+        return provider;
+    }
+
+    @Bean
+    public AuthenticationManager authenticationManager(DaoAuthenticationProvider daoAuthProvider) {
+        return new ProviderManager(List.of(daoAuthenticationProvider()));
+    }
+
+    @Bean
+    public PasswordEncoder passwordEncoder() {
+        return new BCryptPasswordEncoder();
+    }
+}

ApiGateway/PresentationApiGateway/src/main/java/Console/ApiGatewayApp.java

@@ -0,0 +1,23 @@
+package Console;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.domain.EntityScan;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+
+@SpringBootApplication(scanBasePackages = {
+        "Controllers",
+        "Configs",
+        "JWT",
+        "Services",
+        "Repositories",
+        "Models.Entities",
+        "Models.Enums"
+})
+@EnableJpaRepositories(basePackages = "Repositories")
+@EntityScan(basePackages = "Models.Entities")
+public class ApiGatewayApp {
+    public static void main(String[] args) {
+        SpringApplication.run(ApiGatewayApp.class, args);
+    }
+}

ApiGateway/PresentationApiGateway/src/main/java/Console/PasswordEncoderTest.java

@@ -0,0 +1,12 @@
+package Console;
+
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
+
+public class PasswordEncoderTest {
+    public static void main(String[] args) {
+        BCryptPasswordEncoder encoder = new BCryptPasswordEncoder();
+        String password = "admin123";
+        String encodedPassword = encoder.encode(password);
+        System.out.println(encodedPassword);
+    }
+}