First release

src/Attestation/Creator/Pipes/MayPreventDuplicateCredentials.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace Laragear\WebAuthn\Attestation\Creator\Pipes;
+
+use Closure;
+use Laragear\WebAuthn\Attestation\Creator\AttestationCreation;
+use Laragear\WebAuthn\Contracts\WebAuthnAuthenticatable;
+use Laragear\WebAuthn\Models\WebAuthnCredential;
+
+/**
+ * @internal
+ */
+class MayPreventDuplicateCredentials
+{
+    /**
+     * Handle the Attestation creation
+     *
+     * @param  \Laragear\WebAuthn\Attestation\Creator\AttestationCreation  $attestable
+     * @param  \Closure  $next
+     * @return mixed
+     */
+    public function handle(AttestationCreation $attestable, Closure $next): mixed
+    {
+        if ($attestable->uniqueCredentials) {
+            $attestable->json->set('excludeCredentials', $this->credentials($attestable->user));
+        }
+
+        return $next($attestable);
+    }
+
+    /**
+     * Returns a collection of credentials ready to be inserted into the Attestable JSON.
+     *
+     * @param  \Laragear\WebAuthn\Contracts\WebAuthnAuthenticatable  $user
+     * @return array
+     */
+    protected function credentials(WebAuthnAuthenticatable $user): array
+    {
+        return $user
+            ->webAuthnCredentials()
+            ->get(['id', 'transports'])
+            ->map(static function (WebAuthnCredential $credential): array {
+                return array_filter([
+                    'id'=> $credential->getKey(),
+                    'type' => 'public-key',
+                    'transports' => $credential->transports
+                ]);
+            })
+            ->toArray();
+    }
+}