Try to write own app to extend /login with register button and app

💻 Development
,
1

Try to develop on a brandnew Hetzner nextcloud install.
Tried to set up a new app but whatever I do I never get access to it. Either ‘not found’ or CSFR errors. I spent hours of debugging but can’t find any solution by myself.
The setup is like this:

root@wartungs:/var/www/html# tree apps/registrationapp/
apps/registrationapp/
├── appinfo
│   ├── bootstrap.php
│   ├── info.xml
│   └── routes.php
├── lib
│   └── Controller
│       └── RegistrationController.php
└── templates
    └── register.php

5 directories, 5 files

bootstrap:

<?php

declare(strict_types=1);

namespace OCA\RegistrationApp\AppInfo;

use OCP\AppFramework\Bootstrap\IBootstrap;
use OCP\AppFramework\Bootstrap\IRegistrationContext;
use OCP\AppFramework\Bootstrap\IBootContext;
use OCP\AppFramework\Services\IRouterService;
use OCA\RegistrationApp\Controller\RegistrationController;

class Application implements IBootstrap {

    public function register(IRegistrationContext $context): void {
        $context->registerController(RegistrationController::class);
    }

    public function boot(IBootContext $context): void {
        $routerService = $context->getAppContainer()->get(IRouterService::class);

        // ⚡ Route PUBLIC !!!
        $routerService->registerPublicRoute('registrationapp', 'registration#showForm');
    }
}

info.xml:

<?xml version="1.0"?>
<info>
    <id>registrationapp</id>
    <name>Wartungsapp Registration</name>
    <description>Benutzerregistrierung für nextcloud.wartungs.app</description>
    <licence>agpl</licence>
    <author>Steffen Mutter</author>
    <version>0.2.0</version>
    <namespace>RegistrationApp</namespace>
    <category>tools</category>
    <types>
       <type>authentication</type>
    </types>
    <dependencies>
        <nextcloud min-version="27" max-version="30" />
    </dependencies>
    <routes>appinfo/routes.php</routes>
    <bootstrap>appinfo/bootstrap.php</bootstrap>
</info>

routes.php:

<?php

declare(strict_types=1);

return [
    'routes' => [
        [
            'name' => 'registrationapp#registration.showForm',
            'url' => '/registrieren',  // <-- NO Apps dir mentioned: otherwise CSFR!
            'verb' => 'GET',
            'defaults' => [
                '_public' => true,
            ],
        ],
    ]
];

RegistrationController.php:

<?php

declare(strict_types=1);

namespace OCA\RegistrationApp\Controller;

use OCP\AppFramework\Controller;
use OCP\IRequest;
use OCP\AppFramework\Http\TemplateResponse;

/**
 * @PublicPage
 * @NoCSRFRequired
 */
class RegistrationController extends Controller {
    public function __construct(IRequest $request) {
        parent::__construct('registrationapp', $request);
    }

    public function showForm(): TemplateResponse {
        return new TemplateResponse('registrationapp', 'register');
    }
}

register.php:

<div style="text-align: center; margin-top: 20px;">
    <h1>Registrier</h1>
    <p>content 2 come</p>
</div>

This app MUST be accessible always. But it is either never found, nextcloud crashes, or claims to be a CSFR. WTF?!?

Can’t be so difficult to create an public accessible php script. Nextcloud seems to be closed like Fort Knox.
Help highly appreciated!

Kind regards,
Steffen

2

Ok, I am surprised this does even work somehow. Where did you get this code from?

What exactly do you want to achieve? Does the URL really must be without /apps (you will fail then)? What is the use case?

In general, you can do quite some stuff but you need to be aware what you need.

Chris

3

This seems to be something like GitHub - nextcloud/registration: User registration app for Nextcloud ?

4

The question is: does he really need root-based routes or are rooted prefixed with /apps/registrationapp okay? Is it necessary index based routes or might OCS be a solution?

But yeah, you seem to be on the right track…