allow vendord

vendor/google/auth/src/UpdateMetadataTrait.php

@@ -0,0 +1,74 @@
+<?php
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth;
+
+/**
+ * Provides shared methods for updating request metadata (request headers).
+ *
+ * Should implement {@see UpdateMetadataInterface} and {@see FetchAuthTokenInterface}.
+ *
+ * @internal
+ */
+trait UpdateMetadataTrait
+{
+    use MetricsTrait;
+
+    /**
+     * export a callback function which updates runtime metadata.
+     *
+     * @return callable updateMetadata function
+     * @deprecated
+     */
+    public function getUpdateMetadataFunc()
+    {
+        return [$this, 'updateMetadata'];
+    }
+
+    /**
+     * Updates metadata with the authorization token.
+     *
+     * @param array<mixed> $metadata metadata hashmap
+     * @param string $authUri optional auth uri
+     * @param callable|null $httpHandler callback which delivers psr7 request
+     * @return array<mixed> updated metadata hashmap
+     */
+    public function updateMetadata(
+        $metadata,
+        $authUri = null,
+        ?callable $httpHandler = null
+    ) {
+        $metadata_copy = $metadata;
+
+        // We do need to set the service api usage metrics irrespective even if
+        // the auth token is set because invoking this method with auth tokens
+        // would mean the intention is to just explicitly set the metrics metadata.
+        $metadata_copy = $this->applyServiceApiUsageMetrics($metadata_copy);
+
+        if (isset($metadata_copy[self::AUTH_METADATA_KEY])) {
+            // Auth metadata has already been set
+            return $metadata_copy;
+        }
+        $result = $this->fetchAuthToken($httpHandler);
+        if (isset($result['access_token'])) {
+            $metadata_copy[self::AUTH_METADATA_KEY] = ['Bearer ' . $result['access_token']];
+        } elseif (isset($result['id_token'])) {
+            $metadata_copy[self::AUTH_METADATA_KEY] = ['Bearer ' . $result['id_token']];
+        }
+        return $metadata_copy;
+    }
+}