Got standard form-based registration working

app/Services/EmailConfirmationService.php

@@ -0,0 +1,102 @@
+<?php namespace Oxbow\Services;
+
+
+use Carbon\Carbon;
+use Illuminate\Contracts\Mail\Mailer;
+use Illuminate\Mail\Message;
+use Oxbow\EmailConfirmation;
+use Oxbow\Exceptions\ConfirmationEmailException;
+use Oxbow\Exceptions\UserRegistrationException;
+use Oxbow\Repos\UserRepo;
+use Oxbow\Setting;
+use Oxbow\User;
+
+class EmailConfirmationService
+{
+    protected $mailer;
+    protected $emailConfirmation;
+
+    /**
+     * EmailConfirmationService constructor.
+     * @param Mailer            $mailer
+     * @param EmailConfirmation $emailConfirmation
+     */
+    public function __construct(Mailer $mailer, EmailConfirmation $emailConfirmation)
+    {
+        $this->mailer = $mailer;
+        $this->emailConfirmation = $emailConfirmation;
+    }
+
+    /**
+     * Create new confirmation for a user,
+     * Also removes any existing old ones.
+     * @param User $user
+     * @throws ConfirmationEmailException
+     */
+    public function sendConfirmation(User $user)
+    {
+        if($user->email_confirmed) {
+            throw new ConfirmationEmailException('Email has already been confirmed, Try logging in.', '/login');
+        }
+        $this->deleteConfirmationsByUser($user);
+        $token = $this->getToken();
+        $this->emailConfirmation->create([
+            'user_id' => $user->id,
+            'token'   => $token,
+        ]);
+        $this->mailer->send('emails/email-confirmation', ['token' => $token], function (Message $message) use ($user) {
+            $appName = \Setting::get('app-name', 'BookStack');
+            $message->to($user->email, $user->name)->subject('Confirm your email on ' . $appName . '.');
+        });
+    }
+
+    /**
+     * Gets an email confirmation by looking up the token,
+     * Ensures the token has not expired.
+     * @param string $token
+     * @return EmailConfirmation
+     * @throws UserRegistrationException
+     */
+    public function getEmailConfirmationFromToken($token)
+    {
+        $emailConfirmation = $this->emailConfirmation->where('token', '=', $token)->first();
+        // If not found
+        if ($emailConfirmation === null) {
+            throw new UserRegistrationException('This confirmation token is not valid or has already been used, Please try registering again.', '/register');
+        }
+
+        // If more than a day old
+        if(Carbon::now()->subDay()->gt($emailConfirmation->created_at)) {
+            $this->sendConfirmation($emailConfirmation->user);
+            throw new UserRegistrationException('The confirmation token has expired, A new confirmation email has been sent.', '/register/confirm');
+        }
+
+        return $emailConfirmation;
+    }
+
+
+    /**
+     * Delete all email confirmations that belong to a user.
+     * @param User $user
+     * @return mixed
+     */
+    public function deleteConfirmationsByUser(User $user)
+    {
+        return $this->emailConfirmation->where('user_id', '=', $user->id)->delete();
+    }
+
+    /**
+     * Creates a unique token within the email confirmation database.
+     * @return string
+     */
+    protected function getToken()
+    {
+        $token = str_random(24);
+        while ($this->emailConfirmation->where('token', '=', $token)->exists()) {
+            $token = str_random(25);
+        }
+        return $token;
+    }
+
+
+}