If Follow (Match-Try) is rejected, do not permit more matches until the other "unblocks"

api/src/activity/federation.js

@@ -1,9 +1,18 @@
 module.exports = {
-	inbox: (msg) => {
+	inbox: async (msg) => {
+		// TODO: add logging for every matches params
+		if (msg.activity.type === 'Reject' && msg.object.type === 'Follow')
+		{
+			const follow = await db.table.objects().findOne({ id: msg.object.id })
+			follow.type = 'Follow-Rejected'
+			await db.table.objects().replaceOne({ _id: follow._id }, follow)
+			return true;
+		}
+
 		console.log('INBOX')
 		console.log(msg)
 	},
-	outbox: (msg) => {
+	outbox: async (msg) => {
 		console.log('OUTBOX')
 		console.log(msg)
 	},

api/src/api/accounts.js

@@ -10,6 +10,14 @@ async function getFollow(req, res) {
 	})
 }
 
+async function isFollowRejected(req, res) {
+	return await db.table.objects().findOne({
+		actor: apID(res.locals.user.username),
+		to: req.query.url,
+		type: 'Follow-Rejected',
+	}) !== null
+}
+
 module.exports = {
 	follow: {
 		post: [auth.enforceSession, async (req, res) => {
@@ -20,6 +28,9 @@ module.exports = {
 			if (follow !== null)
 				return res.json({ error: 'already_following' })
 
+			if (await isFollowRejected(req, res))
+				return res.json({ error: 'follow_rejected' })
+
 			const actor = await apex.store.getObject(
 				apID(res.locals.user.username), true)
 			const payload = {