FEATURE #1337: add file upload

This commit registers new items into admin menu and adds functionality for uploading files.

app/Http/Controllers/Admin/UploadFile.php

@@ -0,0 +1,97 @@
+<?php
+namespace App\Http\Controllers\Admin;
+
+use App\Http\Requests\UploadFileRequest;
+use App\Http\Requests\UploadImageRequest;
+use App\Models\File;
+use Symfony\Component\HttpFoundation\File\Exception\FileException;
+
+class UploadFile extends Controller
+{
+    /**
+     * @var File
+     */
+    private $file;
+
+    function __construct(File $file)
+    {
+        parent::__construct();
+        $this->file = $file;
+    }
+
+    public function getFile()
+    {
+        return view('admin/fileManager.newFile');
+    }
+
+    public function getImage()
+    {
+    }
+
+    /**
+     * Uploads any file
+     *
+     * @param UploadFileRequest $request
+     *
+     * @return \Illuminate\Http\RedirectResponse
+     */
+    public function postFile(UploadFileRequest $request)
+    {
+        if (!$request->hasFile('file')) {
+            return $this->invalidUpload('noFileSpecified');
+        }
+
+        try {
+            $uploadedFile = $this->file->upload($request->file('file'), $request);
+
+            // we do not want to redirect
+            if ($request->ajax()) {
+                return $this->jsonResponse($uploadedFile);
+            }
+
+            // upload was not performed via ajax, redirect user
+            return redirect()
+                ->route('upload.file')
+                ->with('success', trans('admin/fileManager.uploadSuccessfull'));
+        } catch (FileException $e) {
+            return $this->invalidUpload('invalidFile');
+        }
+    }
+
+    protected function invalidUpload($message)
+    {
+        return redirect()
+            ->route('upload.file')
+            ->with('error', trans('admin/fileManager.' . $message));
+    }
+
+    /**
+     * Uploads only images
+     *
+     * @param UploadImageRequest $request
+     */
+    public function postImage(UploadImageRequest $request)
+    {
+    }
+
+    /**
+     * Send response about uploaded file as JSON
+     *
+     * @param $uploadedFile
+     *
+     * @return \Illuminate\Http\JsonResponse
+     */
+    private function jsonResponse($uploadedFile)
+    {
+        $filename = $uploadedFile['file']->getFilename();
+        $url = config('app.upload_path') . DIRECTORY_SEPARATOR . $filename;
+
+        $data = [
+            'filename' => $filename,
+            'url'      => $url,
+            'id'       => $uploadedFile['id']
+        ];
+
+        return response()->json($data);
+    }
+}