New export functionality.

app/Http/Requests/ExportFormRequest.php

@@ -0,0 +1,52 @@
+<?php
+/**
+ * ExportFormRequest.php
+ * Copyright (C) 2016 Sander Dorigo
+ *
+ * This software may be modified and distributed under the terms
+ * of the MIT license.  See the LICENSE file for details.
+ */
+
+namespace FireflyIII\Http\Requests;
+
+use Auth;
+use Carbon\Carbon;
+
+/**
+ * Class ExportFormRequest
+ *
+ *
+ * @package FireflyIII\Http\Requests
+ */
+class ExportFormRequest extends Request
+{
+    /**
+     * @return bool
+     */
+    public function authorize()
+    {
+        // Only allow logged in users
+        return Auth::check();
+    }
+
+    /**
+     * @return array
+     */
+    public function rules()
+    {
+        $first   = session('first')->subDay()->format('Y-m-d');
+        $today   = Carbon::create()->addDay()->format('Y-m-d');
+        $formats = join(',', array_keys(config('firefly.export_formats')));
+
+        return [
+            'start_date'          => 'required|date|after:' . $first,
+            'end_date'            => 'required|date|before:' . $today,
+            'accounts'            => 'required',
+            'job'                 => 'required|belongsToUser:export_jobs,key',
+            'accounts.*'          => 'required|exists:accounts,id|belongsToUser:accounts',
+            'include_attachments' => 'in:0,1',
+            'include_config'      => 'in:0,1',
+            'exportFormat'        => 'in:' . $formats,
+        ];
+    }
+}