Implement account public key endpoint

src/common/remote/activitypub/renderer/key.ts

@@ -3,6 +3,7 @@ import { extractPublic } from '../../../../crypto_key';
 import { ILocalAccount } from '../../../../models/user';
 
 export default ({ username, account }) => ({
+	id: `${config.url}/@${username}/publickey`,
 	type: 'Key',
 	owner: `${config.url}/@${username}`,
 	publicKeyPem: extractPublic((account as ILocalAccount).keypair)

src/server/activitypub/index.ts

@@ -3,6 +3,7 @@ import * as express from 'express';
 import user from './user';
 import inbox from './inbox';
 import outbox from './outbox';
+import publicKey from './publickey';
 import post from './post';
 
 const app = express();
@@ -11,6 +12,7 @@ app.disable('x-powered-by');
 app.use(user);
 app.use(inbox);
 app.use(outbox);
+app.use(publicKey);
 app.use(post);
 
 export default app;

src/server/activitypub/outbox.ts

@@ -2,44 +2,26 @@ import * as express from 'express';
 import context from '../../common/remote/activitypub/renderer/context';
 import renderNote from '../../common/remote/activitypub/renderer/note';
 import renderOrderedCollection from '../../common/remote/activitypub/renderer/ordered-collection';
-import parseAcct from '../../common/user/parse-acct';
 import config from '../../conf';
 import Post from '../../models/post';
-import User from '../../models/user';
+import withUser from './with-user';
 
 const app = express();
 app.disable('x-powered-by');
 
-app.get('/@:user/outbox', async (req, res) => {
-	const { username, host } = parseAcct(req.params.user);
-	if (host !== null) {
-		return res.sendStatus(422);
-	}
-
-	const user = await User.findOne({
-		usernameLower: username.toLowerCase(),
-		host: null
-	});
-	if (user === null) {
-		return res.sendStatus(404);
-	}
-
-	const id = `${config.url}/@${user.username}/inbox`;
-
-	if (username !== user.username) {
-		return res.redirect(id);
-	}
-
+app.get('/@:user/outbox', withUser(username => {
+	return `${config.url}/@${username}/inbox`;
+}, async (user, req, res) => {
 	const posts = await Post.find({ userId: user._id }, {
 		limit: 20,
 		sort: { _id: -1 }
 	});
 
 	const renderedPosts = await Promise.all(posts.map(post => renderNote(user, post)));
-	const rendered = renderOrderedCollection(id, user.postsCount, renderedPosts);
+	const rendered = renderOrderedCollection(`${config.url}/@${user.username}/inbox`, user.postsCount, renderedPosts);
 	rendered['@context'] = context;
 
 	res.json(rendered);
-});
+}));
 
 export default app;

src/server/activitypub/publickey.ts

+import * as express from 'express';
+import context from '../../common/remote/activitypub/renderer/context';
+import render from '../../common/remote/activitypub/renderer/key';
+import config from '../../conf';
+import withUser from './with-user';
+
+const app = express();
+app.disable('x-powered-by');
+
+app.get('/@:user/publickey', withUser(username => {
+	return `${config.url}/@${username}/publickey`;
+}, (user, req, res) => {
+	const rendered = render(user);
+	rendered['@context'] = context;
+
+	res.json(rendered);
+}));
+
+export default app;

src/server/activitypub/user.ts

@@ -2,39 +2,26 @@ import * as express from 'express';
 import config from '../../conf';
 import context from '../../common/remote/activitypub/renderer/context';
 import render from '../../common/remote/activitypub/renderer/person';
-import parseAcct from '../../common/user/parse-acct';
-import User from '../../models/user';
+import withUser from './with-user';
+
+const respond = withUser(username => `${config.url}/@${username}`, (user, req, res) => {
+	const rendered = render(user);
+	rendered['@context'] = context;
+
+	res.json(rendered);
+});
 
 const app = express();
 app.disable('x-powered-by');
 
-app.get('/@:user', async (req, res, next) => {
+app.get('/@:user', (req, res, next) => {
 	const accepted = req.accepts(['html', 'application/activity+json', 'application/ld+json']);
-	if (!(['application/activity+json', 'application/ld+json'] as Array<any>).includes(accepted)) {
-		return next();
-	}
-
-	const { username, host } = parseAcct(req.params.user);
-	if (host !== null) {
-		return res.sendStatus(422);
-	}
-
-	const user = await User.findOne({
-		usernameLower: username.toLowerCase(),
-		host: null
-	});
-	if (user === null) {
-		return res.sendStatus(404);
-	}
 
-	if (username !== user.username) {
-		return res.redirect(`${config.url}/@${user.username}`);
+	if ((['application/activity+json', 'application/ld+json'] as Array<any>).includes(accepted)) {
+		respond(req, res, next);
+	} else {
+		next();
 	}
-
-	const rendered = render(user);
-	rendered['@context'] = context;
-
-	res.json(rendered);
 });
 
 export default app;

src/server/activitypub/with-user.ts

+import parseAcct from '../../common/user/parse-acct';
+import User from '../../models/user';
+
+export default (redirect, respond) => async (req, res, next) => {
+	const { username, host } = parseAcct(req.params.user);
+	if (host !== null) {
+		return res.sendStatus(422);
+	}
+
+	const user = await User.findOne({
+		usernameLower: username.toLowerCase(),
+		host: null
+	});
+	if (user === null) {
+		return res.sendStatus(404);
+	}
+
+	if (username !== user.username) {
+		return res.redirect(redirect(user.username));
+	}
+
+	return respond(user, req, res, next);
+}