feat: Allow large Parse File uploads

spec/FilesRouter.spec.js

@@ -0,0 +1,79 @@
+const fs = require('fs');
+const path = require('path');
+
+describe('FilesRouter', () => {
+  describe_only_db('mongo')('File Uploads', () => {
+
+    beforeEach(async () => {
+      // Set the maxUploadSize to 1GB
+      await reconfigureServer({
+        maxUploadSize: '1GB',
+      });
+    });
+
+    const V8_STRING_LIMIT_BYTES = 536_870_912;
+
+    /**
+     * Quick helper function to upload the file to the server via the REST API
+     * We do this because creating a Parse.File object with a file over 512MB
+     * will try to use the Web FileReader API, which will fail the test
+     *
+     * @param {string} fileName the name of the file
+     * @param {string} filePath the path to the file locally
+     * @returns
+     */
+    const postFile = async (fileName, filePath) => {
+      const url = `${Parse.serverURL}/files/${fileName}`;
+      const headers = {
+        'X-Parse-Application-Id': Parse.applicationId,
+        'X-Parse-Master-Key': Parse.masterKey,
+        'Content-Type': 'multipart/form-data',
+      };
+
+      const fileStream = fs.createReadStream(filePath);
+
+      // Send the request
+      const response = await fetch(url, {
+        method: 'POST',
+        headers,
+        body: fileStream,
+        duplex: 'half' // This is required to send a stream
+      });
+
+      return response;
+    };
+
+    it('should allow Parse.File uploads under 512MB', async done => {
+      const filePath = path.join(__dirname, 'file.txt');
+      await fs.promises.writeFile(filePath, Buffer.alloc(1024 * 1024));
+
+      const response = await postFile('file.txt', filePath);
+      expect(response.ok).toBe(true);
+
+      fs.unlinkSync(filePath);
+      done();
+    });
+
+    it('should allow Parse.File uploads exactly 512MB', async done => {
+      const filePath = path.join(__dirname, 'file.txt');
+      await fs.promises.writeFile(filePath, Buffer.alloc(V8_STRING_LIMIT_BYTES));
+
+      const response = await postFile('file.txt', filePath);
+      expect(response.ok).toBe(true);
+
+      fs.unlinkSync(filePath);
+      done();
+    });
+
+    it('should allow Parse.File uploads over 512MB', async done => {
+      const filePath = path.join(__dirname, 'file.txt');
+      await fs.promises.writeFile(filePath, Buffer.alloc(V8_STRING_LIMIT_BYTES + 50 * 1024 * 1024));
+
+      const response = await postFile('file.txt', filePath);
+      expect(response.ok).toBe(true);
+
+      fs.unlinkSync(filePath);
+      done();
+    });
+  });
+});