feat: ability to browse follower/following lists of remote accounts

src/activitypub/index.js

@@ -35,9 +35,14 @@ ActivityPub.getActor = async (input) => {
 
 	const actor = await ActivityPub.get(uri);
 
+	// todo: remove this after ActivityPub.get is updated to handle errors more effectively
+	if (typeof actor === 'string' || actor.hasOwnProperty('error')) {
+		return null;
+	}
+
 	const [followers, following] = await Promise.all([
-		ActivityPub.get(actor.followers),
+		actor.followers ? ActivityPub.get(actor.followers) : { totalItems: 0 },
-		ActivityPub.get(actor.following),
+		actor.following ? ActivityPub.get(actor.following) : { totalItems: 0 },
 	]);
 
 	actor.hostname = new URL(uri).hostname;
@@ -56,12 +61,16 @@ ActivityPub.mockProfile = async (actors, callerUid = 0) => {
 		actors = [actors];
 	}
 
-	const profiles = await Promise.all(actors.map(async (actor) => {
+	const profiles = (await Promise.all(actors.map(async (actor) => {
 		// convert uri to actor object
 		if (typeof actor === 'string' && ActivityPub.helpers.isUri(actor)) {
 			actor = await ActivityPub.getActor(actor);
 		}
 
+		if (!actor) {
+			return null;
+		}
+
 		const uid = actor.id;
 		const { preferredUsername, published, icon, image, name, summary, hostname, followerCount, followingCount } = actor;
 		const isFollowing = await db.isSortedSetMember(`followingRemote:${callerUid}`, uid);
@@ -97,7 +106,7 @@ ActivityPub.mockProfile = async (actors, callerUid = 0) => {
 		};
 
 		return payload;
-	}));
+	}))).filter(Boolean);
 
 	return single ? profiles.pop() : profiles;
 };

src/controllers/accounts/follow.js

@@ -4,6 +4,8 @@ const user = require('../../user');
 const helpers = require('../helpers');
 const pagination = require('../../pagination');
 
+const activitypubController = require('../activitypub');
+
 const followController = module.exports;
 
 followController.getFollowing = async function (req, res, next) {
@@ -15,6 +17,10 @@ followController.getFollowers = async function (req, res, next) {
 };
 
 async function getFollow(tpl, name, req, res) {
+	if (res.locals.uid === -2) {
+		return activitypubController.profiles.getFollow(tpl, name, req, res);
+	}
+
 	const {
 		username, userslug, followerCount, followingCount,
 	} = await user.getUserFields(res.locals.uid, [

src/controllers/activitypub/profiles.js

@@ -1,6 +1,8 @@
 'use strict';
 
-const { getActor, mockProfile } = require('../../activitypub');
+const { getActor, mockProfile, get } = require('../../activitypub');
+const helpers = require('../helpers');
+const pagination = require('../../pagination');
 
 const controller = module.exports;
 
@@ -14,3 +16,27 @@ controller.get = async function (req, res, next) {
 	const payload = await mockProfile(actor, req.uid);
 	res.render('account/profile', payload);
 };
+
+controller.getFollow = async function (tpl, name, req, res) {
+	const actor = await getActor(req.params.userslug);
+
+	const { userslug } = req.params;
+	const { preferredUsername: username, followerCount, followingCount } = actor;
+
+	const page = parseInt(req.query.page, 10) || 1;
+
+	const payload = {};
+	payload.title = `[[pages:${tpl}, ${username}]]`;
+
+	const collection = await get(`${actor[name]}?page=${page}`);
+	const resultsPerPage = collection.orderedItems.length;
+	payload.users = await mockProfile(collection.orderedItems, req.uid);
+
+	const count = name === 'following' ? followingCount : followerCount;
+	const pageCount = Math.ceil(count / resultsPerPage);
+	payload.pagination = pagination.create(page, pageCount);
+
+	payload.breadcrumbs = helpers.buildBreadcrumbs([{ text: username, url: `/user/${userslug}` }, { text: `[[user:${name}]]` }]);
+
+	res.render(tpl, payload);
+};