Differential D7878 Diff 26754 keyserver/src/creators/invite-link-creator.js

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keyserver/src/creators/invite-link-creator.js

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				// @flow

				import type {
				CreateOrUpdatePublicLinkRequest,
				InviteLink,
				} from 'lib/types/link-types.js';
				import { threadPermissions } from 'lib/types/thread-permission-types.js';
				import { ServerError } from 'lib/utils/errors.js';

				import createIDs from './id-creator.js';
				import { dbQuery, SQL } from '../database/database.js';
				import { fetchPrimaryInviteLinks } from '../fetchers/link-fetchers.js';
				import { fetchServerThreadInfos } from '../fetchers/thread-fetchers.js';
				import { checkThreadPermission } from '../fetchers/thread-permission-fetchers.js';
				import { Viewer } from '../session/viewer.js';

				const secretRegex = /^[a-zA-Z0-9]+$/;

				async function createOrUpdatePublicLink(
				viewer: Viewer,
				request: CreateOrUpdatePublicLinkRequest,
				): Promise<InviteLink> {
				if (!secretRegex.test(request.name)) {
				throw new ServerError('invalid_parameters');
				}

				const permissionPromise = checkThreadPermission(
				viewer,
				request.communityID,
				threadPermissions.MANAGE_INVITE_LINKS,
				);
				const existingPrimaryLinksPromise = fetchPrimaryInviteLinks(viewer);
				const fetchThreadInfoPromise = fetchServerThreadInfos(
				SQL`t.id = ${request.communityID}`,
				);
				const [hasPermission, existingPrimaryLinks, { threadInfos }] =
				await Promise.all([
				permissionPromise,
				existingPrimaryLinksPromise,
				fetchThreadInfoPromise,
				]);
				if (!hasPermission) {
				throw new ServerError('invalid_credentials');
				}
				const threadInfo = threadInfos[request.communityID];
				if (!threadInfo) {
				throw new ServerError('invalid_parameters');
				}
				const defaultRoleID = Object.keys(threadInfo.roles).find(
				roleID => threadInfo.roles[roleID].isDefault,
				);
				if (!defaultRoleID) {
				throw new ServerError('invalid_parameters');
				}

				const existingPrimaryLink = existingPrimaryLinks.find(
				link => link.communityID === request.communityID && link.primary,
				);
				if (existingPrimaryLink) {
				const query = SQL`
				UPDATE invite_links
				SET name = ${request.name}
				WHERE \`primary\` = 1 AND community = ${request.communityID}
				`;
				try {
				await dbQuery(query);
				} catch {
				throw new ServerError('invalid_parameters');
				}
				return {
				name: request.name,
				primary: true,
				role: defaultRoleID,
				communityID: request.communityID,
				expirationTime: 0,
				limitOfUses: null,
				numberOfUses: 0,
				};
				}

				const [id] = await createIDs('invite_links', 1);

				const row = [id, request.name, true, request.communityID, defaultRoleID];

				const createLinkQuery = SQL`
				INSERT INTO invite_links(id, name, \`primary\`, community, role)
				SELECT ${row}
				WHERE NOT EXISTS (
				SELECT i.id
				FROM invite_links i
				WHERE i.\`primary\` = 1 AND i.community = ${request.communityID}
				)
				`;
				let result = null;
				try {
				result = (await dbQuery(createLinkQuery))[0];
				} catch {
				throw new ServerError('invalid_parameters');
				}

				if (result.affectedRows === 0) {
				const deleteIDs = SQL`
				DELETE FROM ids
				WHERE id = ${id}
				`;
				await dbQuery(deleteIDs);
				throw new ServerError('invalid_parameters');
				}

				return {
				name: request.name,
				primary: true,
				role: defaultRoleID,
				communityID: request.communityID,
				expirationTime: 0,
				limitOfUses: null,
				numberOfUses: 0,
				};
				}

				export { createOrUpdatePublicLink };