primo commit

libraries/vendor/web-auth/metadata-service/src/Service/StringMetadataService.php

@@ -0,0 +1,73 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Webauthn\MetadataService\Service;
+
+use function array_key_exists;
+use Psr\EventDispatcher\EventDispatcherInterface;
+use Webauthn\MetadataService\Event\CanDispatchEvents;
+use Webauthn\MetadataService\Event\MetadataStatementFound;
+use Webauthn\MetadataService\Event\NullEventDispatcher;
+use Webauthn\MetadataService\Exception\MissingMetadataStatementException;
+use Webauthn\MetadataService\Statement\MetadataStatement;
+
+final class StringMetadataService implements MetadataService, CanDispatchEvents
+{
+    /**
+     * @var MetadataStatement[]
+     */
+    private array $statements = [];
+
+    private EventDispatcherInterface $dispatcher;
+
+    public function __construct(string ...$statements)
+    {
+        foreach ($statements as $statement) {
+            $this->addStatements(MetadataStatement::createFromString($statement));
+        }
+        $this->dispatcher = new NullEventDispatcher();
+    }
+
+    public function setEventDispatcher(EventDispatcherInterface $eventDispatcher): void
+    {
+        $this->dispatcher = $eventDispatcher;
+    }
+
+    public static function create(string ...$statements): self
+    {
+        return new self(...$statements);
+    }
+
+    public function addStatements(MetadataStatement ...$statements): self
+    {
+        foreach ($statements as $statement) {
+            $aaguid = $statement->getAaguid();
+            if ($aaguid === null) {
+                continue;
+            }
+            $this->statements[$aaguid] = $statement;
+        }
+
+        return $this;
+    }
+
+    public function list(): iterable
+    {
+        yield from array_keys($this->statements);
+    }
+
+    public function has(string $aaguid): bool
+    {
+        return array_key_exists($aaguid, $this->statements);
+    }
+
+    public function get(string $aaguid): MetadataStatement
+    {
+        array_key_exists($aaguid, $this->statements) || throw MissingMetadataStatementException::create($aaguid);
+        $mds = $this->statements[$aaguid];
+        $this->dispatcher->dispatch(MetadataStatementFound::create($mds));
+
+        return $mds;
+    }
+}