@inrupt/solid-client/dist/acp/util/getAcrUrl.mjs

Make your web apps work with Solid Pods.

import { ACP } from '../constants.mjs';
import { getLinkedResourceUrlAll, getSourceUrl } from '../../resource/resource.mjs';
import { getAclServerResourceInfo } from '../../universal/getAclServerResourceInfo.mjs';

// Copyright Inrupt Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
// Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
// PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
/**
 * Retrieve the URL of an Access Control Resource as per the ACP Draft
 * specification.
 *
 * @param resource The Resource for which to retrieve the URL of the Access
 * Control Resource if it is accessible.
 * @returns The URL of the ACR or null.
 */
async function getAcrUrl(resource, options) {
    // The ACP Draft mandates a link rel="type" header identifies Access Control Resources
    const aclServerResourceInfo = await getAclServerResourceInfo(resource, options);
    if (aclServerResourceInfo === null) {
        return null;
    }
    const relTypeLinks = getLinkedResourceUrlAll(aclServerResourceInfo).type;
    if (Array.isArray(relTypeLinks) &&
        relTypeLinks.includes(ACP.AccessControlResource)) {
        return getSourceUrl(aclServerResourceInfo);
    }
    return null;
}

export { getAcrUrl };