First release

src/Assertion/Creator/Pipes/MayRetrieveCredentialsIdForUser.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace Laragear\WebAuthn\Assertion\Creator\Pipes;
+
+use Closure;
+use Illuminate\Database\Eloquent\Collection as EloquentCollection;
+use Illuminate\Support\Collection;
+use Laragear\WebAuthn\Assertion\Creator\AssertionCreation;
+use Laragear\WebAuthn\Models\WebAuthnCredential;
+use function array_filter;
+
+class MayRetrieveCredentialsIdForUser
+{
+    /**
+     * Handle the incoming Assertion.
+     *
+     * @param  \Laragear\WebAuthn\Assertion\Creator\AssertionCreation  $assertion
+     * @param  \Closure  $next
+     * @return mixed
+     */
+    public function handle(AssertionCreation $assertion, Closure $next): mixed
+    {
+        // If there is a user found, we will pluck the IDS and add them as a binary buffer.
+        if ($assertion->user) {
+            $assertion->acceptedCredentials = $assertion->user->webAuthnCredentials()->get(['id', 'transports']);
+
+            if ($assertion->acceptedCredentials->isNotEmpty()) {
+                $assertion->json->set('allowCredentials', $this->parseCredentials($assertion->acceptedCredentials));
+            }
+        }
+
+        return $next($assertion);
+    }
+
+    /**
+     * Adapt all credentials into an `allowCredentials` digestible array.
+     *
+     * @param  \Illuminate\Database\Eloquent\Collection<int, \Laragear\WebAuthn\Models\WebAuthnCredential>  $credentials
+     * @return \Illuminate\Support\Collection<int, array>
+     */
+    protected function parseCredentials(EloquentCollection $credentials): Collection
+    {
+        return $credentials->map(static function (WebAuthnCredential $credential): array {
+            return array_filter([
+                'id' => $credential->getKey(),
+                'type' => 'public-key',
+                'transports' => $credential->transports
+            ]);
+        });
+    }
+}