.1915763867792649:787da0f6a7a3d2c449c175a5c5bb7dcf_69def9f5f4ff2c686f6068b1.69df07f7f4ff2c686f606d1a.69df07f66ccce0f83369de78:Trae CN.T(2026/4/15 11:37:27)Round 3

.env

@@ -10,3 +10,8 @@ JWT_EXPIRES_IN=7d
 
 # Development Settings
 NODE_ENV=development
+
+# File Upload Configuration
+FILE_UPLOAD_DIR=./uploads
+MAX_FILE_SIZE=10485760
+ALLOWED_MIME_TYPES=image/jpeg,image/png,image/gif,image/webp,application/pdf,text/plain

.env.example

@@ -10,3 +10,8 @@ JWT_EXPIRES_IN=7d
 
 # Development Settings
 NODE_ENV=development
+
+# File Upload Configuration
+FILE_UPLOAD_DIR=./uploads
+MAX_FILE_SIZE=10485760
+ALLOWED_MIME_TYPES=image/jpeg,image/png,image/gif,image/webp,application/pdf,text/plain

backend/package.json

@@ -27,8 +27,8 @@
     "@nestjs/passport": "^10.0.3",
     "@nestjs/platform-express": "^10.0.0",
     "@nestjs/swagger": "^8.1.0",
-    "class-validator": "^0.14.1",
     "class-transformer": "^0.5.1",
+    "class-validator": "^0.14.1",
     "knex": "^3.1.0",
     "passport": "^0.7.0",
     "passport-jwt": "^4.0.1",
@@ -44,6 +44,7 @@
     "@nestjs/testing": "^10.0.0",
     "@types/express": "^5.0.0",
     "@types/jest": "^29.5.2",
+    "@types/multer": "^2.1.0",
     "@types/node": "^20.3.1",
     "@types/passport-jwt": "^4.0.1",
     "@types/supertest": "^6.0.0",

backend/src/app.module.ts

@@ -5,20 +5,23 @@ import { MonitoringModule } from './modules/monitoring/monitoring.module';
 import { DatabaseModule } from './modules/database/database.module';
 import { LoggingModule } from './modules/logging/logging.module';
 import { AuthModule } from './modules/auth/auth.module';
+import { FileUploadModule } from './modules/file-upload/file-upload.module';
 import { ConditionalAuthGuard } from './modules/auth/guards/conditional-auth.guard';
 import { SwaggerModule } from './modules/swagger/swagger.module';
 import { authConfig } from './config/auth.config';
+import { fileUploadConfig } from './config/file-upload.config';
 
 @Module({
   imports: [
     ConfigModule.forRoot({
       isGlobal: true,
-      load: [authConfig],
+      load: [authConfig, fileUploadConfig],
     }),
     LoggingModule,
     DatabaseModule,
     MonitoringModule,
     AuthModule,
+    FileUploadModule,
     SwaggerModule,
   ],
   providers: [

backend/src/config/file-upload.config.ts

@@ -0,0 +1,21 @@
+import { registerAs } from '@nestjs/config';
+import { join } from 'path';
+
+export const fileUploadConfig = registerAs('fileUpload', () => ({
+  uploadDir: process.env.FILE_UPLOAD_DIR || join(process.cwd(), 'uploads'),
+  maxFileSize: parseInt(process.env.MAX_FILE_SIZE, 10) || 10 * 1024 * 1024,
+  allowedMimeTypes: process.env.ALLOWED_MIME_TYPES
+    ? process.env.ALLOWED_MIME_TYPES.split(',')
+    : [
+        'image/jpeg',
+        'image/png',
+        'image/gif',
+        'image/webp',
+        'application/pdf',
+        'text/plain',
+        'application/msword',
+        'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
+        'application/vnd.ms-excel',
+        'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
+      ],
+}));

backend/src/migrations/20240320000000_create_files_table.ts

@@ -0,0 +1,19 @@
+import type { Knex } from 'knex';
+
+exports.up = async function(knex: Knex): Promise<void> {
+  await knex.schema.createTable('files', (table) => {
+    table.string('id').primary();
+    table.string('user_id').notNullable().index();
+    table.string('original_name').notNullable();
+    table.string('file_name').notNullable();
+    table.string('file_path').notNullable();
+    table.bigInteger('file_size').notNullable();
+    table.string('mime_type').notNullable();
+    table.timestamp('created_at').defaultTo(knex.fn.now());
+    table.timestamp('updated_at').defaultTo(knex.fn.now());
+  });
+};
+
+exports.down = async function(knex: Knex): Promise<void> {
+  await knex.schema.dropTable('files');
+};

backend/src/modules/file-upload/controllers/file-upload.controller.ts

@@ -0,0 +1,92 @@
+import {
+  Controller,
+  Post,
+  Get,
+  Delete,
+  Param,
+  UseInterceptors,
+  UploadedFile,
+  Request,
+  Res,
+  BadRequestException,
+} from '@nestjs/common';
+import { FileInterceptor } from '@nestjs/platform-express';
+import { Response } from 'express';
+import { ConfigService } from '@nestjs/config';
+import { FileUploadService } from '../services/file-upload.service';
+import { FileResponseDto } from '../dto/file-response.dto';
+
+const DEFAULT_USER_ID = 'anonymous-user-id';
+
+@Controller('api/files')
+export class FileUploadController {
+  constructor(
+    private readonly fileUploadService: FileUploadService,
+    private readonly configService: ConfigService,
+  ) {}
+
+  private getUserId(req: any): string {
+    const authEnabled = this.configService.get<boolean>('auth.enabled');
+    const userId = req.user?.id;
+
+    if (authEnabled && !userId) {
+      throw new BadRequestException('User not authenticated');
+    }
+
+    return userId || DEFAULT_USER_ID;
+  }
+
+  @Post('upload')
+  @UseInterceptors(FileInterceptor('file'))
+  async uploadFile(
+    @UploadedFile() file: Express.Multer.File,
+    @Request() req: any,
+  ): Promise<FileResponseDto> {
+    if (!file) {
+      throw new BadRequestException('No file uploaded');
+    }
+
+    const userId = this.getUserId(req);
+
+    return this.fileUploadService.uploadFile(
+      userId,
+      file.originalname,
+      file.mimetype,
+      file.buffer,
+    );
+  }
+
+  @Get()
+  async getFiles(@Request() req: any): Promise<FileResponseDto[]> {
+    const userId = this.getUserId(req);
+    return this.fileUploadService.getFilesByUser(userId);
+  }
+
+  @Get(':id')
+  async downloadFile(
+    @Param('id') id: string,
+    @Request() req: any,
+    @Res() res: Response,
+  ): Promise<void> {
+    const userId = this.getUserId(req);
+    const { file, stream } = await this.fileUploadService.getFileById(id, userId);
+
+    res.set({
+      'Content-Type': file.mimeType,
+      'Content-Disposition': `attachment; filename="${encodeURIComponent(file.originalName)}"`,
+      'Content-Length': file.fileSize,
+    });
+
+    stream.pipe(res);
+  }
+
+  @Delete(':id')
+  async deleteFile(
+    @Param('id') id: string,
+    @Request() req: any,
+  ): Promise<{ message: string }> {
+    const userId = this.getUserId(req);
+    await this.fileUploadService.deleteFile(id, userId);
+    return { message: 'File deleted successfully' };
+  }
+}

backend/src/modules/file-upload/dto/file-response.dto.ts

@@ -0,0 +1,10 @@
+export class FileResponseDto {
+  id: string;
+  userId: string;
+  originalName: string;
+  fileName: string;
+  fileSize: number;
+  mimeType: string;
+  createdAt: Date;
+  updatedAt: Date;
+}

backend/src/modules/file-upload/entities/file.entity.ts

@@ -0,0 +1,11 @@
+export class File {
+  id: string;
+  userId: string;
+  originalName: string;
+  fileName: string;
+  filePath: string;
+  fileSize: number;
+  mimeType: string;
+  createdAt: Date;
+  updatedAt: Date;
+}

backend/src/modules/file-upload/file-upload.module.ts

@@ -0,0 +1,21 @@
+import { Module } from '@nestjs/common';
+import { ConfigModule } from '@nestjs/config';
+import { MulterModule } from '@nestjs/platform-express';
+import { memoryStorage } from 'multer';
+import { FileUploadController } from './controllers/file-upload.controller';
+import { FileUploadService } from './services/file-upload.service';
+import { FileRepository } from './repositories/file.repository';
+import { fileUploadConfig } from '../../config/file-upload.config';
+
+@Module({
+  imports: [
+    ConfigModule.forFeature(fileUploadConfig),
+    MulterModule.register({
+      storage: memoryStorage(),
+    }),
+  ],
+  controllers: [FileUploadController],
+  providers: [FileUploadService, FileRepository],
+  exports: [FileUploadService],
+})
+export class FileUploadModule {}

backend/src/modules/file-upload/repositories/file.repository.ts

@@ -0,0 +1,72 @@
+import { Injectable } from '@nestjs/common';
+import { ulid } from 'ulid';
+import { DatabaseService } from '../../database/database.service';
+import { File } from '../entities/file.entity';
+
+@Injectable()
+export class FileRepository {
+  constructor(private readonly databaseService: DatabaseService) {}
+
+  private get knex() {
+    return this.databaseService.knex;
+  }
+
+  async create(fileData: Omit<File, 'id' | 'createdAt' | 'updatedAt'>): Promise<File> {
+    const id = ulid();
+    const now = new Date();
+
+    const [createdFile] = await this.knex('files')
+      .insert({
+        id,
+        user_id: fileData.userId,
+        original_name: fileData.originalName,
+        file_name: fileData.fileName,
+        file_path: fileData.filePath,
+        file_size: fileData.fileSize,
+        mime_type: fileData.mimeType,
+        created_at: now,
+        updated_at: now,
+      })
+      .returning('*');
+
+    return this.mapToEntity(createdFile);
+  }
+
+  async findById(id: string): Promise<File | null> {
+    const file = await this.knex('files')
+      .where('id', id)
+      .first();
+
+    return file ? this.mapToEntity(file) : null;
+  }
+
+  async findByUserId(userId: string): Promise<File[]> {
+    const files = await this.knex('files')
+      .where('user_id', userId)
+      .orderBy('created_at', 'desc');
+
+    return files.map(this.mapToEntity);
+  }
+
+  async delete(id: string): Promise<boolean> {
+    const deletedCount = await this.knex('files')
+      .where('id', id)
+      .delete();
+
+    return deletedCount > 0;
+  }
+
+  private mapToEntity(row: any): File {
+    return {
+      id: row.id,
+      userId: row.user_id,
+      originalName: row.original_name,
+      fileName: row.file_name,
+      filePath: row.file_path,
+      fileSize: Number(row.file_size),
+      mimeType: row.mime_type,
+      createdAt: row.created_at,
+      updatedAt: row.updated_at,
+    };
+  }
+}