security project with jwt

auth-service-api/src/main/java/br/com/rayankonecny/authserviceapi/configs/AuthenticationConfig.java

@@ -0,0 +1,17 @@
+package br.com.rayankonecny.authserviceapi.configs;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.authentication.AuthenticationManager;
+import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
+
+@Configuration
+public class AuthenticationConfig {
+
+    @Bean
+    public AuthenticationManager authenticationManager(
+        AuthenticationConfiguration config
+    ) throws Exception {
+        return config.getAuthenticationManager();
+    }
+}

auth-service-api/src/main/java/br/com/rayankonecny/authserviceapi/controllers/AuthController.java

@@ -30,6 +30,6 @@ public interface AuthController {
       @ApiResponse(responseCode = "500", description = "Internal server error", content = @Content(mediaType = APPLICATION_JSON_VALUE, schema = @Schema(implementation = StandardError.class))),
   })
   @PostMapping("/login")
-  ResponseEntity<AuthenticationResponse> authenticate(@Valid @RequestBody final AuthenticateRequest requests);
+  ResponseEntity<AuthenticationResponse> authenticate(@Valid @RequestBody final AuthenticateRequest requests) throws Exception;
 
 }

auth-service-api/src/main/java/br/com/rayankonecny/authserviceapi/controllers/exceptions/ControllerExceptionHandler.java

@@ -0,0 +1,48 @@
+package br.com.rayankonecny.authserviceapi.controllers.exceptions;
+
+import org.springframework.dao.DataIntegrityViolationException;
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.core.userdetails.UsernameNotFoundException;
+import org.springframework.validation.FieldError;
+import org.springframework.web.bind.MethodArgumentNotValidException;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+
+import jakarta.servlet.http.HttpServletRequest;
+
+import br.com.rayankonecny.hdcommoslib.models.exceptions.ValidationException;
+import br.com.rayankonecny.hdcommoslib.models.exceptions.ResourceNotFoundException;
+import br.com.rayankonecny.hdcommoslib.models.exceptions.StandardError;
+
+import static java.time.LocalDateTime.now;
+import static org.springframework.http.HttpStatus.BAD_REQUEST;
+import static org.springframework.http.HttpStatus.NOT_FOUND;
+
+import java.util.ArrayList;
+
+@ControllerAdvice
+public class ControllerExceptionHandler {
+
+  @ExceptionHandler(UsernameNotFoundException.class)
+  ResponseEntity<StandardError> handleNotFoundException(final ResourceNotFoundException ex,
+      final HttpServletRequest request) {
+    return ResponseEntity.status(NOT_FOUND).body(
+
+        StandardError.builder().timestamp(now()).status(NOT_FOUND.value()).error(NOT_FOUND.getReasonPhrase())
+            .message(ex.getMessage()).path(request.getRequestURI()).build());
+  }
+
+  @ExceptionHandler(MethodArgumentNotValidException.class)
+  ResponseEntity<StandardError> handleMethodArgumentNotValidException(final MethodArgumentNotValidException ex,
+      final HttpServletRequest request) {
+
+    var error = ValidationException.builder().timestamp(now()).status(BAD_REQUEST.value()).error("Validation Exception")
+        .message("Exception in validation attributes").path(request.getRequestURI()).errors(new ArrayList<>()).build();
+
+    for (FieldError fieldError : ex.getBindingResult().getFieldErrors()) {
+      error.addError(fieldError.getField(), fieldError.getDefaultMessage());
+    }
+
+    return ResponseEntity.badRequest().body(error);
+  }
+}

auth-service-api/src/main/java/br/com/rayankonecny/authserviceapi/controllers/impl/AuthControllerImpl.java

@@ -0,0 +1,27 @@
+package br.com.rayankonecny.authserviceapi.controllers.impl;
+
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
+import org.springframework.web.bind.annotation.RestController;
+
+import br.com.rayankonecny.authserviceapi.controllers.AuthController;
+import br.com.rayankonecny.authserviceapi.security.JWTAuthenticationImpl;
+import br.com.rayankonecny.authserviceapi.utils.JWTUtils;
+import br.com.rayankonecny.hdcommoslib.models.requests.AuthenticateRequest;
+import br.com.rayankonecny.hdcommoslib.models.responses.AuthenticationResponse;
+import lombok.RequiredArgsConstructor;
+
+@RestController
+@RequiredArgsConstructor
+public class AuthControllerImpl implements AuthController {
+
+    private final JWTUtils jwtUtils;
+    private final AuthenticationConfiguration authenticationConfiguration;
+
+    @Override
+    public ResponseEntity<AuthenticationResponse> authenticate(final AuthenticateRequest requests) throws Exception {
+        return ResponseEntity.ok().body(
+            new JWTAuthenticationImpl(jwtUtils, authenticationConfiguration.getAuthenticationManager()).authentication(requests));
+    }
+
+}

auth-service-api/src/main/java/br/com/rayankonecny/authserviceapi/models/User.java

@@ -0,0 +1,20 @@
+package br.com.rayankonecny.authserviceapi.models;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.util.Set;
+
+import br.com.rayankonecny.hdcommoslib.models.enums.ProfileEnum;
+
+@Getter
+@AllArgsConstructor
+public class User {
+
+  private String id;
+  private String name;
+  private String email;
+  private String password;
+  private Set<ProfileEnum> profiles;
+
+}

auth-service-api/src/main/java/br/com/rayankonecny/authserviceapi/repository/UserRepository.java

@@ -0,0 +1,13 @@
+package br.com.rayankonecny.authserviceapi.repository;
+
+import java.util.Optional;
+
+import org.springframework.data.mongodb.repository.MongoRepository;
+import org.springframework.stereotype.Repository;
+
+import br.com.rayankonecny.authserviceapi.models.User;
+
+@Repository
+public interface UserRepository extends MongoRepository<User, String> {
+  Optional<User> findByEmail(final String email);
+}

auth-service-api/src/main/java/br/com/rayankonecny/authserviceapi/security/JWTAuthenticationImpl.java

@@ -0,0 +1,40 @@
+package br.com.rayankonecny.authserviceapi.security;
+
+import org.springframework.security.authentication.AuthenticationManager;
+import org.springframework.security.authentication.BadCredentialsException;
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
+
+import br.com.rayankonecny.authserviceapi.utils.JWTUtils;
+import br.com.rayankonecny.hdcommoslib.models.requests.AuthenticateRequest;
+import br.com.rayankonecny.hdcommoslib.models.responses.AuthenticationResponse;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.log4j.Log4j2;
+
+@Log4j2
+@RequiredArgsConstructor
+public class JWTAuthenticationImpl {
+
+  private final JWTUtils jwtUtils;
+  private final AuthenticationManager authenticationManager;
+
+  public AuthenticationResponse authentication(final AuthenticateRequest request) {
+    try {
+      log.info("Authenticating user {}:", request.email());
+
+      final var authResult = authenticationManager
+          .authenticate(new UsernamePasswordAuthenticationToken(request.email(), request.password()));
+
+      return buildAuthenticationResponse((UserDetailsDTO) authResult.getPrincipal());
+
+    } catch (BadCredentialsException e) {
+      log.error("Error no authenticate user: {}", request.email());
+      throw new BadCredentialsException("Email or password invalid");
+    }
+  }
+
+  protected AuthenticationResponse buildAuthenticationResponse(UserDetailsDTO dto) {
+    log.info("Successfuly authenticated user: {}", dto.getUsername());
+    final var token = jwtUtils.generateToken(dto);
+    return AuthenticationResponse.builder().type("Bearer " + token).token(token).build();
+  }
+}

auth-service-api/src/main/java/br/com/rayankonecny/authserviceapi/security/UserDetailsDTO.java

@@ -0,0 +1,55 @@
+package br.com.rayankonecny.authserviceapi.security;
+
+import java.io.Serial;
+import java.util.Collection;
+
+import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.userdetails.UserDetails;
+
+import lombok.Builder;
+import lombok.Getter;
+
+@Getter
+@Builder
+public class UserDetailsDTO implements UserDetails {
+
+  @Serial
+  private static final long serialVersionUID = 1L;
+
+  private String id;
+  private String name;
+  private String username;
+  private String password;
+  private Collection<? extends GrantedAuthority> authorities;
+
+  @Override
+  public Collection<? extends GrantedAuthority> getAuthorities() {
+    return this.authorities;
+  }
+
+  @Override
+  public String getPassword() {
+    return this.password;
+  }
+
+  @Override
+  public String getUsername() {
+    return this.username;
+  }
+
+  public String getName() {
+    return this.name;
+  }
+
+
+  @Override
+  public boolean isAccountNonExpired() {
+    return true;
+  }
+
+  @Override
+  public boolean isAccountNonLocked() {
+    return true;
+  }
+
+}

auth-service-api/src/main/java/br/com/rayankonecny/authserviceapi/services/UserDetailsServiceImpl.java

@@ -0,0 +1,36 @@
+package br.com.rayankonecny.authserviceapi.services;
+
+import java.util.stream.Collector;
+import java.util.stream.Collectors;
+
+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;
+
+import br.com.rayankonecny.authserviceapi.repository.UserRepository;
+import br.com.rayankonecny.authserviceapi.security.UserDetailsDTO;
+import lombok.RequiredArgsConstructor;
+
+@Service
+@RequiredArgsConstructor
+public class UserDetailsServiceImpl implements UserDetailsService {
+
+    private final UserRepository repository;
+
+    @Override
+    public UserDetails loadUserByUsername(final String email) throws UsernameNotFoundException {
+
+        final var entity = repository.findByEmail(email)
+                .orElseThrow(() -> new UsernameNotFoundException("User not found: " + email));
+
+        return UserDetailsDTO.builder()
+        .id(entity.getId())
+        .name(entity.getName())
+        .username(entity.getEmail())
+        .password(entity.getPassword())
+        .authorities(entity.getProfiles().stream().map(x -> new SimpleGrantedAuthority(x.getDescription())).collect(Collectors.toSet()))
+        .build();
+    }
+}

auth-service-api/src/main/java/br/com/rayankonecny/authserviceapi/utils/JWTUtils.java

@@ -0,0 +1,33 @@
+package br.com.rayankonecny.authserviceapi.utils;
+
+import io.jsonwebtoken.Jwts;
+import io.jsonwebtoken.SignatureAlgorithm;
+
+import java.util.Date;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Component;
+
+import br.com.rayankonecny.authserviceapi.security.UserDetailsDTO;
+
+@Component
+public class JWTUtils {
+
+  @Value("${jwt.secret}")
+  private String secret;
+
+  @Value("${jwt.expiration}")
+  private Long expiration;
+
+  public String generateToken(final UserDetailsDTO dto) {
+    return Jwts.builder()
+    .claim("id", dto.getId())
+    .claim("name", dto.getName())
+    .claim("authorities", dto.getAuthorities())
+    .setSubject(dto.getUsername())
+    .signWith(SignatureAlgorithm.HS512, secret.getBytes())
+    .setExpiration(new Date(System.currentTimeMillis()+ expiration))
+    .compact();
+
+  }
+}

auth-service-api/src/main/java/br/com/rayankonecny/authserviceapi/utils/JwtKeyProvider.java

@@ -0,0 +1,23 @@
+package br.com.rayankonecny.authserviceapi.utils;
+
+import io.jsonwebtoken.security.Keys;
+
+import javax.crypto.SecretKey;
+import java.util.Base64;
+
+public final class JwtKeyProvider {
+
+  // 🔥 REGRA DE OURO:
+  // Isso NÃO deve ficar hardcoded em produção.
+  // Use ENV VAR, Vault, Kubernetes Secret, etc.
+  private static final String BASE64_SECRET = "c3VwZXItc2VndXJhLWNoYXZlLWp3dC1jb20tMzItYnl0ZXM=";
+
+  private JwtKeyProvider() {
+    // evita instância acidental
+  }
+
+  public static SecretKey getKey() {
+    byte[] keyBytes = Base64.getDecoder().decode(BASE64_SECRET);
+    return Keys.hmacShaKeyFor(keyBytes);
+  }
+}

auth-service-api/src/main/resources/application.yml

@@ -1,4 +1,10 @@
 spring:
   application:
     name: "auth-service-api"
-    
+  data:
+    mongodb:
+      uri: mongodb://175.15.15.6:27017/olympdb
+      auto-index-creation: true
+
+jwt.secret: "IHf3Yua/byvtA+iIcGWmkrLvpKEXTb5ClkXaZ0VDmYbr/6b1otCs38x68bidvZLAOB7anUtVQlCid6YDULO5XA=="
+jwt.expiration: 120000