Can't change email address of John Doe admin user -> invalid signature

[gitwittidbit]

Hi,

So I just installed Helper from scratch. It is running behind a ssl terminating reverse proxy under a domain name like this https://helper.example.com.

When I try to change the John Doe admin user's email address, I get the verification email but when I click on the link, Helper displays "Invalid Signature".

What might be the problem?

Thanks!

[TsuLee]

The "Invalid Signature" error you're seeing when clicking the verification link in the email is typically related to a mismatch between the signature generated in the URL and the server's signature verification process. This can happen when the application is behind a reverse proxy, particularly when SSL is terminated at the proxy.

1. Session Configuration (Signed URLs and Session Handling):

Laravel uses signed URLs to ensure the integrity of the data. When you're behind a reverse proxy or load balancer, sometimes the session or signature verification may fail if the configuration isn’t set up to handle it properly.

Update the session domain in your config/session.php file:
'domain' => env('SESSION_DOMAIN', '.example.com'), // Set the correct domain here

Make sure that the session cookie is set to work across all subdomains (e.g., .example.com for helper.example.com).

Also, verify that your APP_URL in .env is set correctly:
APP_URL=https://helper.example.com

2. SSL and Trusted Proxies:

Laravel needs to be aware of the fact that it is behind a proxy and SSL is terminated outside the application. Without this, Laravel may not correctly identify the scheme (HTTP or HTTPS) or might incorrectly handle the proxy headers.

In app/Http/Middleware/TrustProxies.php, ensure that the middleware is correctly handling the proxy. You should have something like this:

use Illuminate\Http\Request;
use Fideloper\Proxy\TrustProxies as Middleware;

class TrustProxies extends Middleware
{
    /**
     * The trusted proxies for this application.
     *
     * @var array
     */
    protected $proxies = '*'; // You can limit this to your proxy's IP

    /**
     * The headers that should be used to detect proxies.
     *
     * @var int
     */
    protected $headers = Request::HEADER_X_FORWARDED_ALL;
}

3. Verify APP_KEY:

The "Invalid Signature" error can also occur if there’s an issue with your APP_KEY. The key used to generate the signed URLs may be incorrect or mismatched.

Ensure your .env file has the correct APP_KEY:
APP_KEY=your_base64_encoded_key

Or generate it :
php artisan key:generate

4. try cleaning the cache :

php artisan config:clear
php artisan cache:clear
php artisan session:clear

Hope it helps !