Transport controller and file model (#42)

* Transport controller and file model

* Use randomBytes intead of pseudoRandomBytes

* Cover all lines with tests

* Update code style

* Update code style

* View for image block

* Fix serving static files

* Mkdir -p for uploads dirs

* Add default secret param

* Add image Tool

* Update src/utils/objects.js

Co-Authored-By: talyguryn <vitalik7tv@yandex.ru>

* Use vars for image tool colors

* Revert var

* Remove --color-gray-border var

* Update src/controllers/transport.js

Co-Authored-By: talyguryn <vitalik7tv@yandex.ru>

* Add mp4 support for Image Tool

src/routes/api/transport.js

@@ -0,0 +1,119 @@
+const express = require('express');
+const router = express.Router();
+const multer = require('multer');
+const mime = require('mime');
+const mkdirp = require('mkdirp');
+const Transport = require('../../controllers/transport');
+const { random16 } = require('../../utils/crypto');
+const config = require('../../../config');
+
+/**
+ * Multer storage for uploaded files and images
+ * @type {DiskStorage|DiskStorage}
+ */
+const storage = multer.diskStorage({
+  destination: (req, file, cb) => {
+    const dir = config.uploads || 'public/uploads';
+
+    mkdirp(dir, err => cb(err, dir));
+  },
+  filename: async (req, file, cb) => {
+    const filename = await random16();
+
+    cb(null, `${filename}.${mime.getExtension(file.mimetype)}`);
+  }
+});
+
+/**
+ * Multer middleware for image uploading
+ */
+const imageUploader = multer({
+  storage,
+  fileFilter: (req, file, cb) => {
+    if (!/image/.test(file.mimetype) && !/video\/mp4/.test(file.mimetype)) {
+      cb(null, false);
+      return;
+    }
+
+    cb(null, true);
+  }
+}).fields([ { name: 'image', maxCount: 1 } ]);
+
+/**
+ * Multer middleware for file uploading
+ */
+const fileUploader = multer({
+  storage
+}).fields([ { name: 'file', maxCount: 1 } ]);
+
+/**
+ * Accepts images to upload
+ */
+router.post('/transport/image', imageUploader, async (req, res) => {
+  let response = { success: 0 };
+
+  if (!req.files || !req.files.image) {
+    res.status(400).json(response);
+    return;
+  }
+
+  try {
+    Object.assign(
+      response,
+      await Transport.save(req.files.image[0], req.body.map ? JSON.parse(req.body.map) : undefined)
+    );
+
+    response.success = 1;
+    res.status(200).json(response);
+  } catch (e) {
+    res.status(500).json(response);
+  }
+});
+
+/**
+ * Accepts files to upload
+ */
+router.post('/transport/file', fileUploader, async (req, res) => {
+  let response = { success: 0 };
+
+  if (!req.files || !req.files.file) {
+    res.status(400).json(response);
+    return;
+  }
+
+  try {
+    Object.assign(
+      response,
+      await Transport.save(req.files.file[0], req.body.map ? JSON.parse(req.body.map) : undefined)
+    );
+
+    response.success = 1;
+    res.status(200).json(response);
+  } catch (e) {
+    res.status(500).json(response);
+  }
+});
+
+/**
+ * Accept file url to fetch
+ */
+router.post('/transport/fetch', multer().none(), async (req, res) => {
+  let response = { success: 0 };
+
+  if (!req.body.url) {
+    res.status(400).json(response);
+    return;
+  }
+
+  try {
+    Object.assign(response, await Transport.fetch(req.body.url, req.body.map ? JSON.parse(req.body.map) : undefined));
+
+    response.success = 1;
+    res.status(200).json(response);
+  } catch (e) {
+    console.log(e);
+    res.status(500).json(response);
+  }
+});
+
+module.exports = router;