primo commit

libraries/vendor/web-token/jwt-library/KeyManagement/Analyzer/UsageAnalyzer.php

@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Jose\Component\KeyManagement\Analyzer;
+
+use Jose\Component\Core\JWK;
+use function in_array;
+
+final class UsageAnalyzer implements KeyAnalyzer
+{
+    public function analyze(JWK $jwk, MessageBag $bag): void
+    {
+        if (! $jwk->has('use')) {
+            $bag->add(Message::medium('The parameter "use" should be added.'));
+        } elseif (! in_array($jwk->get('use'), ['sig', 'enc'], true)) {
+            $bag->add(
+                Message::high(sprintf(
+                    'The parameter "use" has an unsupported value "%s". Please use "sig" (signature) or "enc" (encryption).',
+                    $jwk->get('use')
+                ))
+            );
+        }
+        if ($jwk->has('key_ops') && ! in_array(
+            $jwk->get('key_ops'),
+            ['sign', 'verify', 'encrypt', 'decrypt', 'wrapKey', 'unwrapKey'],
+            true
+        )) {
+            $bag->add(
+                Message::high(sprintf(
+                    'The parameter "key_ops" has an unsupported value "%s". Please use one of the following values: %s.',
+                    $jwk->get('key_ops'),
+                    implode(', ', ['verify', 'sign', 'encrypt', 'decrypt', 'wrapKey', 'unwrapKey'])
+                ))
+            );
+        }
+    }
+}