actinity/signed-urls

Signed Urls

A library for signing and validating short-lived, one-time URLs using public and private keys. Designed for Laravel, but can be used elsewhere.

Evolved from twogether/laravel-url-signer

Installation with Laravel

composer require actinity/signed-urls

php artisan vendor:publish --provider="Actinity\SignedUrls\Laravel\SignedUrlServiceProvider"

php artisan actinity:generate-key-pair

The last command will give you a public and private key pair. Add the private key to your .env file.

SIGNED_URLS_PRIVATE_KEY=<PRIVATE_KEY>

Configuring

Every app that you will be communicating between needs a source_name. By default this is Str::slug(config('app.name')) but you can explicitly set it in config/signed_urls.php.

Also in that config file you'll see a public_keys array. This is where you can add the public keys for apps that will make requests. So if you have an app called dashboard, you would configure 'source_name' => 'dashboard'. If that needs to make signed requests to an app called reports, then in that reports app you would configure it like this:

    'source_name' => 'reports',
    'public_keys' => [
        'dashboard' => <DASHBOARD_PUBLIC_KEY_HERE>
    ]

The source_name parameter from your config will be added to every generated URL as ac_sc. For more complex logic when resolving a key to validate, you can implement Actinity\SignedUrls\Contracts\KeyProvider and specify that in the config.

Generating URLs

To generate a signed URL, get the service from the service container, likely through injection.

$service = app(\Actinity\SignedUrls\SignedUrlService::class);
$url = $service->sign('https://www.example.com');

Validating URLs

To validate a signed URL:

$service = app(\Actinity\SignedUrls\SignedUrlService::class);
try {
    $service->validate($request->fullUrl());
} catch(\Actinity\SignedUrls\Exceptions\InvalidSignedUrl $exception) {
    dd($exception->errors());
}

You can also just use Actinity\SignedUrls\Laravel\SignedUrlMiddleware.