Added services

This commit moves most controller logic onto Services. Services are part of the Service-Repository pattern. The models act as repositories.

Services are easily testable and are needed for the upcoming API, in order to avoid duplicated code and to maintain a single source of "truth".

 The User, Vacancy and Vote controllers still need their logic moved onto services.

app/Services/ContactService.php

@@ -0,0 +1,47 @@
+<?php
+
+
+namespace App\Services;
+
+
+use App\Exceptions\FailedCaptchaException;
+use App\Notifications\NewContact;
+use App\User;
+use Illuminate\Support\Facades\Http;
+
+class ContactService
+{
+
+    /**
+     * Sends a message to all admins.
+     *
+     * @throws FailedCaptchaException
+     */
+    public function sendMessage($ipAddress, $message, $email, $challenge)
+    {
+        // TODO: now: add middleware for this verification, move to invisible captcha
+        $verifyrequest = Http::asForm()->post(config('recaptcha.verify.apiurl'), [
+            'secret' => config('recaptcha.keys.secret'),
+            'response' => $challenge,
+            'remoteip' => $ipAddress,
+        ]);
+
+        $response = json_decode($verifyrequest->getBody(), true);
+
+        if (! $response['success']) {
+            throw new FailedCaptchaException('Beep beep boop... Robot? Submission failed.');
+        }
+
+        foreach (User::all() as $user) {
+            if ($user->hasRole('admin')) {
+                $user->notify(new NewContact(collect([
+                    'message' => $message,
+                    'ip' => $ipAddress,
+                    'email' => $email,
+                ])));
+            }
+        }
+    }
+
+
+}