@fontoxml/fontoxml-development-tools/src/modules/editor/dev-cms/connectors-cms-standard/configureDocumentHistoryGetRouteHandler.js

Development tools for Fonto.

import correlationIdRepository from './correlationIdRepository.js';

/** @typedef {import('../../src/getAppConfig.js').DevCmsConfig} DevCmsConfig */

/**
 * @param {DevCmsConfig} _config
 */
function configureDocumentHistoryGetRouteHandler(_config) {
	return (req, res) => {
		const documentId = req.query.documentId;
		// Because these requests do not originate from the editor, but from an other server, we
		// have no edit session token.  We do, however, have an correlationId which we may resolve
		// to the editSessionToken used by the corresponding call to the proxy
		const editSessionToken =
			correlationIdRepository.getEditSessionTokenForRequest(req);
		req.cms.loadHistory(
			documentId,
			editSessionToken,
			(error, revisions) => {
				if (error) {
					if (error.status === 404) {
						res.status(404).end();
					} else {
						res.status(500).end();
					}
					return;
				}

				const newestRevision = revisions[0];
				const newestRevisionIsWorkingCopy =
					!!newestRevision &&
					newestRevision._editSessionToken === editSessionToken;

				res.status(200)
					.set('content-type', 'application/json; charset=utf-8')
					.json({
						newestRevisionIsWorkingCopy,
						revisions,
					});
			}
		);
	};
}

export default configureDocumentHistoryGetRouteHandler;