import * as express from 'express' import { body, param, query } from 'express-validator' import { isEachUniqueHandleValid, isFollowStateValid, isRemoteHandleValid } from '@server/helpers/custom-validators/follows' import { loadActorUrlOrGetFromWebfinger } from '@server/lib/activitypub/actors' import { getRemoteNameAndHost } from '@server/lib/activitypub/follow' import { getServerActor } from '@server/models/application/application' import { MActorFollowActorsDefault } from '@server/types/models' import { HttpStatusCode } from '../../../shared/models/http/http-error-codes' import { isTestInstance } from '../../helpers/core-utils' import { isActorTypeValid, isValidActorHandle } from '../../helpers/custom-validators/activitypub/actor' import { isEachUniqueHostValid, isHostValid } from '../../helpers/custom-validators/servers' import { logger } from '../../helpers/logger' import { WEBSERVER } from '../../initializers/constants' import { ActorModel } from '../../models/actor/actor' import { ActorFollowModel } from '../../models/actor/actor-follow' import { areValidationErrors } from './shared' import { ServerFollowCreate } from '@shared/models' const listFollowsValidator = [ query('state') .optional() .custom(isFollowStateValid).withMessage('Should have a valid follow state'), query('actorType') .optional() .custom(isActorTypeValid).withMessage('Should have a valid actor type'), (req: express.Request, res: express.Response, next: express.NextFunction) => { if (areValidationErrors(req, res)) return return next() } ] const followValidator = [ body('hosts') .toArray() .custom(isEachUniqueHostValid).withMessage('Should have an array of unique hosts'), body('handles') .toArray() .custom(isEachUniqueHandleValid).withMessage('Should have an array of handles'), (req: express.Request, res: express.Response, next: express.NextFunction) => { // Force https if the administrator wants to follow remote actors if (isTestInstance() === false && WEBSERVER.SCHEME === 'http') { return res .status(HttpStatusCode.INTERNAL_SERVER_ERROR_500) .json({ error: 'Cannot follow on a non HTTPS web server.' }) } logger.debug('Checking follow parameters', { parameters: req.body }) if (areValidationErrors(req, res)) return const body: ServerFollowCreate = req.body if (body.hosts.length === 0 && body.handles.length === 0) { return res .status(HttpStatusCode.BAD_REQUEST_400) .json({ error: 'You must provide at least one handle or one host.' }) } return next() } ] const removeFollowingValidator = [ param('hostOrHandle') .custom(value => isHostValid(value) || isRemoteHandleValid(value)) .withMessage('Should have a valid host/handle'), 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 { name, host } = getRemoteNameAndHost(req.params.hostOrHandle) const follow = await ActorFollowModel.loadByActorAndTargetNameAndHostForAPI(serverActor.id, name, host) if (!follow) { return res.fail({ status: HttpStatusCode.NOT_FOUND_404, message: `Follow ${req.params.hostOrHandle} not found.` }) } 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: MActorFollowActorsDefault 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.fail({ status: HttpStatusCode.NOT_FOUND_404, message: `Follower ${req.params.nameWithHost} not found.` }) } 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.fail({ message: 'Follow is not in pending state.' }) } return next() } ] // --------------------------------------------------------------------------- export { followValidator, removeFollowingValidator, getFollowerValidator, acceptOrRejectFollowerValidator, listFollowsValidator }