vladp
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package ru.soune.nocopy.handler;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.stereotype.Component;
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import ru.soune.nocopy.dto.*;
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import ru.soune.nocopy.dto.file.*;
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import ru.soune.nocopy.entity.AuthToken;
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import ru.soune.nocopy.exception.NotFoundAuthToken;
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import ru.soune.nocopy.repository.AuthTokenRepository;
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import ru.soune.nocopy.service.file.FileEntityService;
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import java.util.Arrays;
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@Slf4j
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@Component
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@RequiredArgsConstructor
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public class FileEntityHandler implements RequestHandler {
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private final FileEntityService fileEntityService;
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private final AuthTokenRepository authTokenRepository;
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private final ObjectMapper objectMapper;
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@Override
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public BaseResponse handle(BaseRequest request) {
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try {
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FileEntityRequest fileRequest = objectMapper.convertValue(
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request.getMessageBody(), FileEntityRequest.class);
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String action = fileRequest.getAction();
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switch (action) {
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case "get_file_info":
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return handleGetFileInfo(request, fileRequest);
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case "get_file_by_session":
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return handleGetFileBySession(request, fileRequest);
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case "get_user_files":
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return handleGetUserFiles(request, fileRequest);
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case "search_files":
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return handleSearchFiles(request, fileRequest);
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case "get_storage_usage":
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return handleGetStorageUsage(request, fileRequest);
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case "delete_file":
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return handleDeleteFile(request, fileRequest);
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default:
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ActionResponse response = ActionResponse.builder()
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.action(action)
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.availableActions(Arrays.asList(
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"get_file_info", "get_file_by_session", "get_user_files",
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"search_files", "get_storage_usage", "delete_file"))
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.build();
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return new BaseResponse(request.getMsgId(),
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MessageCode.INVALID_ACTION.getCode(),
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"Invalid action: " + action,
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response);
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}
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} catch (Exception e) {
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log.error("Error in FileEntityHandler", e);
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return new BaseResponse(request.getMsgId(),
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MessageCode.FILE_UPLOAD_ERROR.getCode(),
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"Handler error: " + e.getMessage(),
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null);
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}
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}
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private BaseResponse handleGetFileInfo(BaseRequest request, FileEntityRequest fileRequest) {
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try {
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Long userId = getUserIdFromToken(fileRequest.getToken());
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FileEntityResponse fileInfo = fileEntityService.getById(fileRequest.getFileId());
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if (!fileInfo.getUserId().equals(userId)) {
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return new BaseResponse(request.getMsgId(),
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MessageCode.ACCESS_DENIED.getCode(),
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"Access denied",
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null);
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}
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return new BaseResponse(request.getMsgId(),
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MessageCode.SUCCESS.getCode(),
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MessageCode.SUCCESS.getDescription(),
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fileInfo);
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} catch (NotFoundAuthToken e) {
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return new BaseResponse(request.getMsgId(),
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MessageCode.INVALID_TOKEN.getCode(),
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"Authentication required",
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null);
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} catch (Exception e) {
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log.error("Error getting file info", e);
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return new BaseResponse(request.getMsgId(),
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MessageCode.FILE_UPLOAD_ERROR.getCode(),
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"Failed to get file info: " + e.getMessage(),
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null);
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}
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}
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private BaseResponse handleGetFileBySession(BaseRequest request, FileEntityRequest fileRequest) {
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try {
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Long userId = getUserIdFromToken(fileRequest.getToken());
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FileEntityResponse fileInfo = fileEntityService.getByUploadSessionId(fileRequest.getUploadSessionId());
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if (!fileInfo.getUserId().equals(userId)) {
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return new BaseResponse(request.getMsgId(),
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MessageCode.ACCESS_DENIED.getCode(),
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"Access denied",
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null);
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}
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return new BaseResponse(request.getMsgId(),
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MessageCode.SUCCESS.getCode(),
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MessageCode.SUCCESS.getDescription(),
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fileInfo);
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} catch (NotFoundAuthToken e) {
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return new BaseResponse(request.getMsgId(),
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MessageCode.INVALID_TOKEN.getCode(),
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"Authentication required",
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null);
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} catch (Exception e) {
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log.error("Error getting file by session", e);
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return new BaseResponse(request.getMsgId(),
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MessageCode.FILE_UPLOAD_ERROR.getCode(),
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"Failed to get file: " + e.getMessage(),
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null);
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}
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}
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private BaseResponse handleGetUserFiles(BaseRequest request, FileEntityRequest fileRequest) {
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try {
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Long userId = getUserIdFromToken(fileRequest.getToken());
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int page = fileRequest.getPage() != null ? fileRequest.getPage() : 1;
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int pageSize = fileRequest.getPageSize() != null ? fileRequest.getPageSize() : 20;
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FileResponse files = fileEntityService.getUserFiles(userId, page, pageSize);
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return new BaseResponse(request.getMsgId(),
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MessageCode.SUCCESS.getCode(),
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MessageCode.SUCCESS.getDescription(),
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files);
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} catch (NotFoundAuthToken e) {
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return new BaseResponse(request.getMsgId(),
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MessageCode.INVALID_TOKEN.getCode(),
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"Authentication required",
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null);
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} catch (Exception e) {
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log.error("Error getting user files", e);
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return new BaseResponse(request.getMsgId(),
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MessageCode.FILE_UPLOAD_ERROR.getCode(),
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"Failed to get files: " + e.getMessage(),
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null);
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}
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}
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private BaseResponse handleSearchFiles(BaseRequest request, FileEntityRequest fileRequest) {
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try {
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Long userId = getUserIdFromToken(fileRequest.getToken());
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int page = fileRequest.getPage() != null ? fileRequest.getPage() : 1;
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int pageSize = fileRequest.getPageSize() != null ? fileRequest.getPageSize() : 20;
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if (fileRequest.getQuery() == null || fileRequest.getQuery().isBlank()) {
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return handleGetUserFiles(request, fileRequest);
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}
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FileResponse allFiles = fileEntityService.getUserFiles(userId, 1, 1000);
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var filteredFiles = allFiles.getFiles().stream()
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.filter(f -> f.getOriginalFileName().toLowerCase().contains(fileRequest.getQuery().toLowerCase()))
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.toList();
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int start = (page - 1) * pageSize;
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int end = Math.min(start + pageSize, filteredFiles.size());
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FileListResponse response = FileListResponse.builder()
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.files(filteredFiles.subList(start, Math.min(end, filteredFiles.size())))
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.totalCount(filteredFiles.size())
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.totalSize(allFiles.getTotalSize())
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.formattedTotalSize(allFiles.getFormattedTotalSize())
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.page(page)
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.pageSize(pageSize)
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.build();
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return new BaseResponse(request.getMsgId(),
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MessageCode.SUCCESS.getCode(),
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MessageCode.SUCCESS.getDescription(),
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response);
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} catch (NotFoundAuthToken e) {
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return new BaseResponse(request.getMsgId(),
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MessageCode.INVALID_TOKEN.getCode(),
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"Authentication required",
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null);
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} catch (Exception e) {
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log.error("Error searching files", e);
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return new BaseResponse(request.getMsgId(),
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MessageCode.FILE_UPLOAD_ERROR.getCode(),
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"Failed to search files: " + e.getMessage(),
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null);
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}
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}
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private BaseResponse handleGetStorageUsage(BaseRequest request, FileEntityRequest fileRequest) {
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try {
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Long userId = getUserIdFromToken(fileRequest.getToken());
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long usage = fileEntityService.getUserStorageUsed(userId);
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StorageUsageResponse response = StorageUsageResponse.builder()
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.userId(userId)
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.storageUsed(usage)
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.formattedStorageUsed(formatFileSize(usage))
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.build();
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return new BaseResponse(request.getMsgId(),
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MessageCode.SUCCESS.getCode(),
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MessageCode.SUCCESS.getDescription(),
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response);
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} catch (NotFoundAuthToken e) {
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return new BaseResponse(request.getMsgId(),
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MessageCode.INVALID_TOKEN.getCode(),
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"Authentication required",
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null);
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} catch (Exception e) {
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log.error("Error getting storage usage", e);
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return new BaseResponse(request.getMsgId(),
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MessageCode.FILE_UPLOAD_ERROR.getCode(),
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"Failed to get storage usage: " + e.getMessage(),
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null);
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}
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}
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private BaseResponse handleDeleteFile(BaseRequest request, FileEntityRequest fileRequest) {
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try {
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Long userId = getUserIdFromToken(fileRequest.getToken());
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FileEntityResponse fileInfo = fileEntityService.getById(fileRequest.getFileId());
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if (!fileInfo.getUserId().equals(userId)) {
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return new BaseResponse(request.getMsgId(),
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MessageCode.ACCESS_DENIED.getCode(),
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"Access denied",
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null);
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}
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fileEntityService.markAsDeleted(fileRequest.getFileId());
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DeleteFileResponse response = DeleteFileResponse.builder()
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.fileId(fileRequest.getFileId())
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.message("File marked as deleted")
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.build();
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return new BaseResponse(request.getMsgId(),
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MessageCode.SUCCESS.getCode(),
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"File marked as deleted",
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response);
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} catch (NotFoundAuthToken e) {
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return new BaseResponse(request.getMsgId(),
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MessageCode.INVALID_TOKEN.getCode(),
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"Authentication required",
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null);
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} catch (Exception e) {
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log.error("Error deleting file", e);
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return new BaseResponse(request.getMsgId(),
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MessageCode.FILE_UPLOAD_ERROR.getCode(),
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"Failed to delete file: " + e.getMessage(),
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null);
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}
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}
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private Long getUserIdFromToken(String token) {
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if (token == null || token.isBlank()) {
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throw new NotFoundAuthToken("Token is required");
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}
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if (token.startsWith("Bearer ")) {
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token = token.replace("Bearer ", "");
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}
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AuthToken authToken = authTokenRepository.findByToken(token)
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.orElseThrow(() -> new NotFoundAuthToken("Token not found"));
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return authToken.getUser().getId();
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}
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private String formatFileSize(long size) {
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if (size < 1024) return size + " B";
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int exp = (int) (Math.log(size) / Math.log(1024));
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String pre = "KMGTPE".charAt(exp-1) + "";
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return String.format("%.1f %sB", size / Math.pow(1024, exp), pre);
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}
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}
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Block a user