Add api key for use rest api

src/main/java/ru/soune/nocopy/configuration/security/SecurityConfig.java

@@ -9,6 +9,7 @@ import org.springframework.security.config.annotation.web.configurers.AbstractHt
 import org.springframework.security.config.http.SessionCreationPolicy;
 import org.springframework.security.web.SecurityFilterChain;
 import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
+import ru.soune.nocopy.util.ApiKeyFilter;
 import ru.soune.nocopy.util.JwtAuthFilter;
 
 @Configuration
@@ -18,6 +19,8 @@ public class SecurityConfig {
 
     private final JwtAuthFilter jwtAuthFilter;
 
+    private final ApiKeyFilter apiKeyFilter;
+
     @Bean
     public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
         http
@@ -33,6 +36,7 @@ public class SecurityConfig {
                         .requestMatchers("/api/internal/**").permitAll()
                         .anyRequest().authenticated()
                 )
+                .addFilterBefore(apiKeyFilter, UsernamePasswordAuthenticationFilter.class)
                 .addFilterBefore(jwtAuthFilter, UsernamePasswordAuthenticationFilter.class);
 
         return http.build();

src/main/java/ru/soune/nocopy/controller/ApiController.java

@@ -28,7 +28,6 @@ import ru.soune.nocopy.entity.file.FileEntity;
 import ru.soune.nocopy.entity.file.FileStatus;
 import ru.soune.nocopy.entity.file.UploadStatus;
 import ru.soune.nocopy.entity.file.permission.PermissionType;
-import ru.soune.nocopy.entity.user.AuthToken;
 import ru.soune.nocopy.entity.user.User;
 import ru.soune.nocopy.exception.*;
 import ru.soune.nocopy.handler.*;

src/main/java/ru/soune/nocopy/controller/ApiKeyController.java

@@ -0,0 +1,70 @@
+package ru.soune.nocopy.controller;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+import ru.soune.nocopy.dto.BaseResponse;
+import ru.soune.nocopy.dto.MessageCode;
+import ru.soune.nocopy.entity.api.ApiKey;
+import ru.soune.nocopy.service.api.ApiKeyService;
+
+import java.util.List;
+import java.util.Map;
+
+@RestController
+@RequestMapping("/api/user")
+@RequiredArgsConstructor
+public class ApiKeyController {
+
+    private final ApiKeyService apiKeyService;
+
+    @PostMapping("/api-keys")
+    public ResponseEntity<BaseResponse> createKey(@RequestAttribute("userId") Long userId,
+            @RequestBody Map<String, String> body) {
+        String name = body.getOrDefault("name", "Unnamed key");
+        String apiKey = apiKeyService.createApiKey(userId, name);
+
+        return ResponseEntity.ok(
+                BaseResponse.builder()
+                        .messageCode(MessageCode.API_KEY_CREATED.getCode())
+                        .messageDesc(MessageCode.API_KEY_CREATED.getDescription())
+                        .messageBody(Map.of("apiKey", apiKey))
+                        .build()
+        );
+    }
+
+    @GetMapping("/api-keys")
+    public ResponseEntity<BaseResponse> listKeys(@RequestAttribute("userId") Long userId) {
+        List<ApiKey> keys = apiKeyService.getUserKeys(userId);
+
+        List<Map<String, Object>> result = keys.stream()
+                .map(key -> Map.<String, Object>of(
+                        "id", key.getId(),
+                        "name", key.getName(),
+                        "prefix", key.getPrefix(),
+                        "isActive", key.isActive(),
+                        "createdAt", key.getCreatedAt(),
+                        "lastUsedAt", key.getLastUsedAt()
+                ))
+                .toList();
+
+        return ResponseEntity.ok(
+                BaseResponse.builder()
+                        .messageCode(MessageCode.SUCCESS.getCode())
+                        .messageBody(result)
+                        .build()
+        );
+    }
+
+    @DeleteMapping("/api-keys/{keyId}")
+    public ResponseEntity<BaseResponse> revokeKey(@RequestAttribute("userId") Long userId,
+            @PathVariable Long keyId) {
+        apiKeyService.revoke(keyId, userId);
+
+        return ResponseEntity.ok(
+                BaseResponse.builder()
+                        .messageCode(MessageCode.SUCCESS.getCode())
+                        .build()
+        );
+    }
+}

src/main/java/ru/soune/nocopy/dto/MessageCode.java

@@ -9,6 +9,7 @@ public enum MessageCode {
     FILE_IS_BLOCKED(1, "File is blocked,deleted or removed"),
     INVALID_FIELD(2, "Invalid field"),
     MAIL_VERIFIED_NULL(2, "Mail verified null"),
+    API_KEY_CREATED(2, "Save this key. It will not be shown again"),
     INVALID_TOKEN(2, "Token not found or time expired"),
     TOKEN_IS_ALIVE(2, "Token is alive"),
     INVALID_ACTION(2, "Invalid action"),

src/main/java/ru/soune/nocopy/entity/api/ApiKey.java

@@ -0,0 +1,68 @@
+package ru.soune.nocopy.entity.api;
+
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalDateTime;
+
+@Entity
+@Table(name = "api_keys")
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class ApiKey {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+    @Column(name = "user_id", nullable = false)
+    private Long userId;
+
+    @Column(name = "key_hash", nullable = false, unique = true, length = 64)
+    private String keyHash;
+
+    @Column(nullable = false, length = 8)
+    private String prefix;
+
+    @Column(length = 255)
+    private String name;
+
+    @Column(name = "is_active", nullable = false)
+    private boolean isActive;
+
+    @Column(name = "created_at", nullable = false)
+    private LocalDateTime createdAt;
+
+    @Column(name = "expires_at")
+    private LocalDateTime expiresAt;
+
+    @Column(name = "last_used_at")
+    private LocalDateTime lastUsedAt;
+
+    @Builder
+    private ApiKey(Long userId, String keyHash, String prefix,
+                   String name, LocalDateTime expiresAt) {
+        this.userId = userId;
+        this.keyHash = keyHash;
+        this.prefix = prefix;
+        this.name = name;
+        this.isActive = true;
+        this.createdAt = LocalDateTime.now();
+        this.expiresAt = expiresAt;
+    }
+
+    public void markAsUsed() {
+        this.lastUsedAt = LocalDateTime.now();
+    }
+
+    public void revoke() {
+        this.isActive = false;
+    }
+
+    public boolean isValid() {
+        if (!isActive) return false;
+        if (expiresAt == null) return true;
+        return expiresAt.isAfter(LocalDateTime.now());
+    }
+}

src/main/java/ru/soune/nocopy/repository/api/ApiKeyRepository.java

@@ -0,0 +1,18 @@
+package ru.soune.nocopy.repository.api;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+import ru.soune.nocopy.entity.api.ApiKey;
+
+import java.util.List;
+import java.util.Optional;
+
+@Repository
+public interface ApiKeyRepository extends JpaRepository<ApiKey, Long> {
+
+    Optional<ApiKey> findByKeyHash(String keyHash);
+
+    List<ApiKey> findAllByUserId(Long userId);
+
+    Optional<ApiKey> findByIdAndUserId(Long id, Long userId);
+}

src/main/java/ru/soune/nocopy/service/api/ApiKeyService.java

@@ -0,0 +1,93 @@
+package ru.soune.nocopy.service.api;
+
+
+import lombok.RequiredArgsConstructor;
+import org.apache.commons.codec.digest.DigestUtils;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import ru.soune.nocopy.entity.api.ApiKey;
+import ru.soune.nocopy.repository.api.ApiKeyRepository;
+
+import java.security.SecureRandom;
+import java.util.Base64;
+import java.util.List;
+import java.util.Optional;
+
+@Service
+@RequiredArgsConstructor
+public class ApiKeyService {
+
+    private final ApiKeyRepository apiKeyRepository;
+
+    @Transactional
+    public String createApiKey(Long userId, String name) {
+        String rawKey = generateRawKey();
+        String hash = DigestUtils.sha256Hex(rawKey);
+        String prefix = rawKey.substring(0, 8);
+
+        ApiKey apiKey = ApiKey.builder()
+                .userId(userId)
+                .keyHash(hash)
+                .prefix(prefix)
+                .name(name)
+                .build();
+
+        apiKeyRepository.save(apiKey);
+
+        return "ncp_" + Base64.getUrlEncoder().withoutPadding()
+                .encodeToString(rawKey.getBytes());
+    }
+
+    @Transactional
+    public Optional<Long> authenticate(String clientProvidedKey) {
+        if (!clientProvidedKey.startsWith("ncp_")) {
+            return Optional.empty();
+        }
+
+        String encodedPart = clientProvidedKey.substring(4);
+
+        String rawKey;
+        try {
+            rawKey = new String(Base64.getUrlDecoder().decode(encodedPart));
+        } catch (IllegalArgumentException e) {
+            return Optional.empty();
+        }
+
+        String hash = DigestUtils.sha256Hex(rawKey);
+
+        Optional<ApiKey> apiKeyOpt = apiKeyRepository.findByKeyHash(hash);
+
+        if (apiKeyOpt.isEmpty()) {
+            return Optional.empty();
+        }
+
+        ApiKey apiKey = apiKeyOpt.get();
+
+        if (!apiKey.isValid()) {
+            return Optional.empty();
+        }
+
+        apiKey.markAsUsed();
+        apiKeyRepository.save(apiKey);
+
+        return Optional.of(apiKey.getUserId());
+    }
+
+    @Transactional(readOnly = true)
+    public List<ApiKey> getUserKeys(Long userId) {
+        return apiKeyRepository.findAllByUserId(userId);
+    }
+
+    @Transactional
+    public void revoke(Long keyId, Long userId) {
+        apiKeyRepository.findByIdAndUserId(keyId, userId)
+                .ifPresent(ApiKey::revoke);
+    }
+
+    private String generateRawKey() {
+        SecureRandom random = new SecureRandom();
+        byte[] bytes = new byte[32];
+        random.nextBytes(bytes);
+        return Base64.getUrlEncoder().withoutPadding().encodeToString(bytes);
+    }
+}

src/main/java/ru/soune/nocopy/util/ApiKeyFilter.java

@@ -0,0 +1,76 @@
+package ru.soune.nocopy.util;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import jakarta.servlet.FilterChain;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import lombok.RequiredArgsConstructor;
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
+import org.springframework.security.core.authority.SimpleGrantedAuthority;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.stereotype.Component;
+import org.springframework.web.filter.OncePerRequestFilter;
+import ru.soune.nocopy.dto.BaseResponse;
+import ru.soune.nocopy.dto.MessageCode;
+import ru.soune.nocopy.service.api.ApiKeyService;
+
+import java.io.IOException;
+import java.util.List;
+import java.util.Optional;
+
+@Component
+@RequiredArgsConstructor
+public class ApiKeyFilter extends OncePerRequestFilter {
+
+    private final ApiKeyService apiKeyService;
+
+    private final ObjectMapper objectMapper;
+
+    @Override
+    protected void doFilterInternal(HttpServletRequest request,
+                                    HttpServletResponse response,
+                                    FilterChain filterChain)
+            throws ServletException, IOException {
+
+        if (SecurityContextHolder.getContext().getAuthentication() != null) {
+            filterChain.doFilter(request, response);
+            return;
+        }
+
+        String apiKey = request.getHeader("X-API-Key");
+
+        if (apiKey == null) {
+            filterChain.doFilter(request, response);
+            return;
+        }
+
+        Optional<Long> userIdOpt = apiKeyService.authenticate(apiKey);
+
+        if (userIdOpt.isEmpty()) {
+            response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
+            response.setContentType("application/json");
+            BaseResponse error = BaseResponse.builder()
+                    .messageCode(MessageCode.INVALID_CREDENTIALS.getCode())
+                    .messageDesc("Invalid or expired API key")
+                    .build();
+            response.getWriter().write(objectMapper.writeValueAsString(error));
+            return;
+        }
+
+        Long userId = userIdOpt.get();
+
+        UsernamePasswordAuthenticationToken authentication =
+                new UsernamePasswordAuthenticationToken(
+                        userId,
+                        null,
+                        List.of(new SimpleGrantedAuthority("ROLE_USER"))
+                );
+
+        SecurityContextHolder.getContext().setAuthentication(authentication);
+
+        request.setAttribute("userId", userId);
+
+        filterChain.doFilter(request, response);
+    }
+}