Add actor URL redirection to /@username when Accepts text/html

api/src/activity/actor.js

@@ -0,0 +1,18 @@
+module.exports = {
+	init: () => {
+		apex.net.actor.get.unshift(async (req, res, next) => {
+			if (req.accepts('text/html')) {
+				const actor = req.params[apex.actorParam]
+				const actorIRI = apex.utils.usernameToIRI(actor)
+				let actorObj
+				try {
+					actorObj = await apex.store.getObject(actorIRI)
+					if (actorObj !== null &&
+						actorObj.preferredUsername !== undefined)
+						return res.redirect(`/@${actorObj.preferredUsername[0]}`)
+				} catch (err) {}
+			}
+			next()
+		})
+	},
+}

api/src/activity/index.js

@@ -7,5 +7,6 @@ global.replaceImpl = (funcs, name, withFunc) => {
 module.exports = {
 	rewriteImplementations: () => {
 		require('./well-known.js').init()
+		require('./actor.js').init()
 	},
 }