dev add tariff info and control

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

@@ -1,5 +1,6 @@
 package ru.soune.nocopy.controller;
 
+import com.google.common.io.ByteStreams;
 import com.vrt.NoCopyFileService;
 import com.vrt.fileprotection.FileProtector;
 import com.vrt.fileprotection.NoCopyCheckResult;
@@ -10,13 +11,12 @@ import lombok.extern.slf4j.Slf4j;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.web.PageableDefault;
-import org.springframework.http.HttpHeaders;
-import org.springframework.http.MediaType;
-import org.springframework.http.ResponseEntity;
+import org.springframework.http.*;
 import org.springframework.validation.BindingResult;
 import org.springframework.validation.FieldError;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
+import org.springframework.web.servlet.mvc.method.annotation.StreamingResponseBody;
 import ru.soune.nocopy.dto.BaseRequest;
 import ru.soune.nocopy.dto.BaseResponse;
 import ru.soune.nocopy.dto.MessageCode;
@@ -43,8 +43,12 @@ import ru.soune.nocopy.service.file.ProtectionsLimitService;
 import ru.soune.nocopy.service.file.cloud.CloudStorageService;
 import ru.soune.nocopy.service.register.AuthService;
 import ru.soune.nocopy.util.FileUtil;
+import software.amazon.awssdk.services.s3.model.NoSuchKeyException;
 
 import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
 import java.net.URLEncoder;
 import java.nio.charset.StandardCharsets;
 import java.util.*;
@@ -159,6 +163,45 @@ public class ApiController {
         }
     }
 
+    @GetMapping("/internal/data-download/{fileId}")
+    public ResponseEntity<StreamingResponseBody> getPublicFile(@PathVariable String fileId) {
+        try {
+            FileEntity fileEntity = fileEntityRepository.findById(fileId)
+                    .orElseThrow(() -> new FileNotFoundException("Not found in DB: " + fileId));
+
+            MediaType mediaType = getMediaType(fileEntity);
+
+            ContentDisposition contentDisposition = ContentDisposition.inline()
+                    .filename(fileEntity.getOriginalFileName(), StandardCharsets.UTF_8)
+                    .build();
+
+            StreamingResponseBody responseBody = outputStream -> {
+                try (InputStream inputStream = cloudStorageService.readFileFromStorage(fileEntity.getFilePath())) {
+                    ByteStreams.copy(inputStream, outputStream);
+                } catch (NoSuchKeyException e) {
+                    log.error("File disappeared from S3 during streaming: {}", fileId, e);
+                    throw new IOException("File not found in storage", e);
+                }
+            };
+
+            return ResponseEntity.ok()
+                    .contentType(mediaType)
+                    .header(HttpHeaders.CONTENT_DISPOSITION, contentDisposition.toString())
+                    .header(HttpHeaders.CACHE_CONTROL, "public, max-age=3600")
+                    .body(responseBody);
+        } catch (FileNotFoundException e) {
+            log.warn("File not found in DB: {}", fileId);
+            return ResponseEntity.notFound().build();
+        } catch (NoSuchKeyException e) {
+            log.warn("File not found in S3: {}", fileId);
+            return ResponseEntity.status(HttpStatus.NOT_FOUND).build();
+        } catch (Exception e) {
+            log.error("Error reading file: {}", fileId, e);
+            return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).build();
+        }
+    }
+
+
     @PostMapping("/internal/data-control")
     public ResponseEntity<?> handleInternalControlPostRequest(@RequestBody BaseRequest request) {
         Integer msgId = request.getMsgId();
@@ -767,4 +810,23 @@ public class ApiController {
 
         return errorDetail;
     }
+
+    private MediaType getMediaType(FileEntity fileEntity) {
+        try {
+            return MediaType.parseMediaType(fileEntity.getMimeType());
+        } catch (InvalidMediaTypeException e) {
+            String extension = fileEntity.getFileExtension().toLowerCase();
+            switch (extension) {
+                case "jpg":
+                case "jpeg":
+                    return MediaType.IMAGE_JPEG;
+                case "png":
+                    return MediaType.IMAGE_PNG;
+                case "pdf":
+                    return MediaType.APPLICATION_PDF;
+                default:
+                    return MediaType.APPLICATION_OCTET_STREAM;
+            }
+        }
+    }
 }

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

@@ -20,7 +20,8 @@ public class InternalApiFilter extends OncePerRequestFilter {
     protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain)
             throws ServletException, IOException {
 
-        if (request.getRequestURI().startsWith("api/internal/")) {
+        if (request.getRequestURI().startsWith("api/internal/") ||
+                request.getRequestURI().startsWith("api/internal/download")) {
             String providedKey = request.getHeader("X-Internal-Key");
 
             if (!internalApiKey.equals(providedKey)) {