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

Development tools for Fonto.

import asyncRouteWithLockCleanupHandler from '../asyncRouteWithLockCleanupHandler.js';
import correlationIdRepository from './correlationIdRepository.js';

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

/**
 * @param {DevCmsConfig} _config
 */
export default function configureDocumentRevisionGetRouteHandler(_config) {
	return asyncRouteWithLockCleanupHandler(async (acquireLock, req, res) => {
		const { documentId, revisionId, context } = req.query;
		// 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.
		// For review this endpoint might also be called from the editor, in which case the
		// editSessionToken is provided as a query parameter.
		const editSessionToken = context
			? JSON.parse(context).editSessionToken
			: correlationIdRepository.getEditSessionTokenForRequest(req);

		const fileLock = await acquireLock(documentId);
		const content = await req.cms.getFileByRevisionId(
			documentId,
			revisionId,
			editSessionToken,
			fileLock,
		);
		fileLock.release();

		if (content === null) {
			res.status(404).end();
			return;
		}

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