import * as express from 'express' import { body, param } from 'express-validator/check' import { isTestInstance } from '../../helpers/core-utils' import { isEachUniqueHostValid, isHostValid } from '../../helpers/custom-validators/servers' import { logger } from '../../helpers/logger' import { getServerActor } from '../../helpers/utils' import { SERVER_ACTOR_NAME, WEBSERVER } from '../../initializers/constants' import { ActorFollowModel } from '../../models/activitypub/actor-follow' import { areValidationErrors } from './utils' import { ActorModel } from '../../models/activitypub/actor' import { loadActorUrlOrGetFromWebfinger } from '../../helpers/webfinger' import { isValidActorHandle } from '../../helpers/custom-validators/activitypub/actor' const followValidator = [ body('hosts').custom(isEachUniqueHostValid).withMessage('Should have an array of unique hosts'), (req: express.Request, res: express.Response, next: express.NextFunction) => { // Force https if the administrator wants to make friends if (isTestInstance() === false && WEBSERVER.SCHEME === 'http') { return res.status(500) .json({ error: 'Cannot follow on a non HTTPS web server.' }) .end() } logger.debug('Checking follow parameters', { parameters: req.body }) if (areValidationErrors(req, res)) return return next() } ] const removeFollowingValidator = [ param('host').custom(isHostValid).withMessage('Should have a valid host'), async (req: express.Request, res: express.Response, next: express.NextFunction) => { logger.debug('Checking unfollowing parameters', { parameters: req.params }) if (areValidationErrors(req, res)) return const serverActor = await getServerActor() const follow = await ActorFollowModel.loadByActorAndTargetNameAndHostForAPI(serverActor.id, SERVER_ACTOR_NAME, req.params.host) if (!follow) { return res .status(404) .json({ error: `Following ${req.params.host} not found.` }) .end() } res.locals.follow = follow return next() } ] const getFollowerValidator = [ param('nameWithHost').custom(isValidActorHandle).withMessage('Should have a valid nameWithHost'), async (req: express.Request, res: express.Response, next: express.NextFunction) => { logger.debug('Checking get follower parameters', { parameters: req.params }) if (areValidationErrors(req, res)) return let follow: ActorFollowModel try { const actorUrl = await loadActorUrlOrGetFromWebfinger(req.params.nameWithHost) const actor = await ActorModel.loadByUrl(actorUrl) const serverActor = await getServerActor() follow = await ActorFollowModel.loadByActorAndTarget(actor.id, serverActor.id) } catch (err) { logger.warn('Cannot get actor from handle.', { handle: req.params.nameWithHost, err }) } if (!follow) { return res .status(404) .json({ error: `Follower ${req.params.nameWithHost} not found.` }) .end() } res.locals.follow = follow return next() } ] const acceptOrRejectFollowerValidator = [ (req: express.Request, res: express.Response, next: express.NextFunction) => { logger.debug('Checking accept/reject follower parameters', { parameters: req.params }) const follow = res.locals.follow if (follow.state !== 'pending') { return res.status(400).json({ error: 'Follow is not in pending state.' }).end() } return next() } ] // --------------------------------------------------------------------------- export { followValidator, removeFollowingValidator, getFollowerValidator, acceptOrRejectFollowerValidator }