"use strict";
/**
 * Copyright 2014 Google Inc. All Rights Reserved.
 *
 * 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.
 */
Object.defineProperty(exports, "__esModule", { value: true });
const messages = require("../messages");
class IAMAuth {
    /**
     * IAM credentials.
     *
     * @param selector the iam authority selector
     * @param token the token
     * @constructor
     */
    constructor(selector, token) {
        this.selector = selector;
        this.token = token;
        this.selector = selector;
        this.token = token;
    }
    /**
     * Indicates whether the credential requires scopes to be created by calling
     * createdScoped before use.
     * @deprecated
     * @return always false
     */
    createScopedRequired() {
        // IAM authorization does not use scopes.
        messages.warn(messages.IAM_CREATE_SCOPED_DEPRECATED);
        return false;
    }
    /**
     * Pass the selector and token to the metadataFn callback.
     * @deprecated
     * @param unused_uri is required of the credentials interface
     * @param metadataFn a callback invoked with object containing request
     * metadata.
     */
    getRequestMetadata(unusedUri, metadataFn) {
        messages.warn(messages.IAM_GET_REQUEST_METADATA_DEPRECATED);
        metadataFn(null, this.getRequestHeaders());
    }
    /**
     * Acquire the HTTP headers required to make an authenticated request.
     */
    getRequestHeaders() {
        return {
            'x-goog-iam-authority-selector': this.selector,
            'x-goog-iam-authorization-token': this.token,
        };
    }
}
exports.IAMAuth = IAMAuth;
//# sourceMappingURL=iam.js.map