feat: add new config strategy to backend

backend/src/file/file.controller.ts

@@ -2,7 +2,6 @@ import {
   Controller,
   Get,
   Param,
-  ParseFilePipeBuilder,
   Post,
   Res,
   StreamableFile,
@@ -19,6 +18,7 @@ import { ShareDTO } from "src/share/dto/share.dto";
 import { ShareOwnerGuard } from "src/share/guard/shareOwner.guard";
 import { ShareSecurityGuard } from "src/share/guard/shareSecurity.guard";
 import { FileService } from "./file.service";
+import { FileValidationPipe } from "./pipe/fileValidation.pipe";
 
 @Controller("shares/:shareId/files")
 export class FileController {
@@ -32,13 +32,7 @@ export class FileController {
     })
   )
   async create(
-    @UploadedFile(
-      new ParseFilePipeBuilder()
-        .addMaxSizeValidator({
-          maxSize: parseInt(process.env.MAX_FILE_SIZE),
-        })
-        .build()
-    )
+    @UploadedFile(FileValidationPipe)
     file: Express.Multer.File,
     @Param("shareId") shareId: string
   ) {

backend/src/file/file.module.ts

@@ -3,11 +3,12 @@ import { JwtModule } from "@nestjs/jwt";
 import { ShareModule } from "src/share/share.module";
 import { FileController } from "./file.controller";
 import { FileService } from "./file.service";
+import { FileValidationPipe } from "./pipe/fileValidation.pipe";
 
 @Module({
   imports: [JwtModule.register({}), ShareModule],
   controllers: [FileController],
-  providers: [FileService],
+  providers: [FileService, FileValidationPipe],
   exports: [FileService],
 })
 export class FileModule {}

backend/src/file/file.service.ts

@@ -3,11 +3,11 @@ import {
   Injectable,
   NotFoundException,
 } from "@nestjs/common";
-import { ConfigService } from "@nestjs/config";
 import { JwtService } from "@nestjs/jwt";
 import { randomUUID } from "crypto";
 import * as fs from "fs";
 import * as mime from "mime-types";
+import { ConfigService } from "src/config/config.service";
 import { PrismaService } from "src/prisma/prisma.service";
 
 @Injectable()
@@ -78,14 +78,14 @@ export class FileService {
     return fs.createReadStream(`./data/uploads/shares/${shareId}/archive.zip`);
   }
 
-  getFileDownloadUrl(shareId: string, fileId: string) {
+  async getFileDownloadUrl(shareId: string, fileId: string) {
     const downloadToken = this.generateFileDownloadToken(shareId, fileId);
     return `${this.config.get(
       "APP_URL"
     )}/api/shares/${shareId}/files/${fileId}?token=${downloadToken}`;
   }
 
-  generateFileDownloadToken(shareId: string, fileId: string) {
+  async generateFileDownloadToken(shareId: string, fileId: string) {
     if (fileId == "zip") fileId = undefined;
 
     return this.jwtService.sign(
@@ -95,15 +95,15 @@ export class FileService {
       },
       {
         expiresIn: "10min",
-        secret: this.config.get("JWT_SECRET"),
+        secret: this.config.get("jwtSecret"),
       }
     );
   }
 
-  verifyFileDownloadToken(shareId: string, token: string) {
+  async verifyFileDownloadToken(shareId: string, token: string) {
     try {
       const claims = this.jwtService.verify(token, {
-        secret: this.config.get("JWT_SECRET"),
+        secret: this.config.get("jwtSecret"),
       });
       return claims.shareId == shareId;
     } catch {

backend/src/file/pipe/fileValidation.pipe.ts

@@ -0,0 +1,13 @@
+import { ArgumentMetadata, Injectable, PipeTransform } from "@nestjs/common";
+import { ConfigService } from "src/config/config.service";
+
+@Injectable()
+export class FileValidationPipe implements PipeTransform {
+  constructor(private config: ConfigService) {}
+  async transform(value: any, metadata: ArgumentMetadata) {
+    // "value" is an object containing the file's attributes and metadata
+    console.log(this.config.get("maxFileSize"));
+    const oneKb = 1000;
+    return value.size < oneKb;
+  }
+}