Set ActivityPub Content-Type

src/server/activitypub.ts

@@ -41,10 +41,20 @@ function inbox(ctx: Router.IRouterContext) {
 }
 
 function isActivityPubReq(ctx: Router.IRouterContext) {
+	ctx.response.vary('Accept');
 	const accepted = ctx.accepts('html', 'application/activity+json', 'application/ld+json');
 	return ['application/activity+json', 'application/ld+json'].includes(accepted as string);
 }
 
+export function setResponseType(ctx: Router.IRouterContext) {
+	const accpet = ctx.accepts('application/activity+json', 'application/ld+json');
+	if (accpet === 'application/ld+json') {
+		ctx.response.type = 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"; charset=utf-8';
+	} else {
+		ctx.response.type = 'application/activity+json; charset=utf-8';
+	}
+}
+
 // inbox
 router.post('/inbox', json(), inbox);
 router.post('/users/:user/inbox', json(), inbox);
@@ -64,6 +74,7 @@ router.get('/notes/:note', async (ctx, next) => {
 	}
 
 	ctx.body = pack(await renderNote(note, false));
+	setResponseType(ctx);
 });
 
 // outbox
@@ -91,6 +102,7 @@ router.get('/users/:user/publickey', async ctx => {
 
 	if (isLocalUser(user)) {
 		ctx.body = pack(renderKey(user));
+		setResponseType(ctx);
 	} else {
 		ctx.status = 400;
 	}
@@ -104,6 +116,7 @@ async function userInfo(ctx: Router.IRouterContext, user: IUser) {
 	}
 
 	ctx.body = pack(await renderPerson(user as ILocalUser));
+	setResponseType(ctx);
 }
 
 router.get('/users/:user', async ctx => {

src/server/activitypub/followers.ts

@@ -1,5 +1,5 @@
 import * as mongo from 'mongodb';
-import * as Koa from 'koa';
+import * as Router from 'koa-router';
 import config from '../../config';
 import $ from 'cafy'; import ID from '../../misc/cafy-id';
 import User from '../../models/user';
@@ -8,8 +8,9 @@ import pack from '../../remote/activitypub/renderer';
 import renderOrderedCollection from '../../remote/activitypub/renderer/ordered-collection';
 import renderOrderedCollectionPage from '../../remote/activitypub/renderer/ordered-collection-page';
 import renderFollowUser from '../../remote/activitypub/renderer/follow-user';
+import { setResponseType } from '../activitypub';
 
-export default async (ctx: Koa.Context) => {
+export default async (ctx: Router.IRouterContext) => {
 	const userId = new mongo.ObjectID(ctx.params.user);
 
 	// Get 'cursor' parameter
@@ -72,9 +73,11 @@ export default async (ctx: Koa.Context) => {
 		);
 
 		ctx.body = pack(rendered);
+		setResponseType(ctx);
 	} else {
 		// index page
 		const rendered = renderOrderedCollection(partOf, user.followersCount, `${partOf}?page=true`, null);
 		ctx.body = pack(rendered);
+		setResponseType(ctx);
 	}
 };

src/server/activitypub/following.ts

@@ -1,5 +1,5 @@
 import * as mongo from 'mongodb';
-import * as Koa from 'koa';
+import * as Router from 'koa-router';
 import config from '../../config';
 import $ from 'cafy'; import ID from '../../misc/cafy-id';
 import User from '../../models/user';
@@ -8,8 +8,9 @@ import pack from '../../remote/activitypub/renderer';
 import renderOrderedCollection from '../../remote/activitypub/renderer/ordered-collection';
 import renderOrderedCollectionPage from '../../remote/activitypub/renderer/ordered-collection-page';
 import renderFollowUser from '../../remote/activitypub/renderer/follow-user';
+import { setResponseType } from '../activitypub';
 
-export default async (ctx: Koa.Context) => {
+export default async (ctx: Router.IRouterContext) => {
 	const userId = new mongo.ObjectID(ctx.params.user);
 
 	// Get 'cursor' parameter
@@ -72,9 +73,11 @@ export default async (ctx: Koa.Context) => {
 		);
 
 		ctx.body = pack(rendered);
+		setResponseType(ctx);
 	} else {
 		// index page
 		const rendered = renderOrderedCollection(partOf, user.followingCount, `${partOf}?page=true`, null);
 		ctx.body = pack(rendered);
+		setResponseType(ctx);
 	}
 };

src/server/activitypub/outbox.ts

@@ -1,16 +1,17 @@
 import * as mongo from 'mongodb';
-import * as Koa from 'koa';
+import * as Router from 'koa-router';
 import config from '../../config';
 import $ from 'cafy'; import ID from '../../misc/cafy-id';
 import User from '../../models/user';
 import pack from '../../remote/activitypub/renderer';
 import renderOrderedCollection from '../../remote/activitypub/renderer/ordered-collection';
 import renderOrderedCollectionPage from '../../remote/activitypub/renderer/ordered-collection-page';
+import { setResponseType } from '../activitypub';
 
 import Note from '../../models/note';
 import renderNote from '../../remote/activitypub/renderer/note';
 
-export default async (ctx: Koa.Context) => {
+export default async (ctx: Router.IRouterContext) => {
 	const userId = new mongo.ObjectID(ctx.params.user);
 
 	// Get 'sinceId' parameter
@@ -92,6 +93,7 @@ export default async (ctx: Koa.Context) => {
 		);
 
 		ctx.body = pack(rendered);
+		setResponseType(ctx);
 	} else {
 		// index page
 		const rendered = renderOrderedCollection(partOf, user.notesCount,
@@ -99,5 +101,6 @@ export default async (ctx: Koa.Context) => {
 			`${partOf}?page=true&since_id=000000000000000000000000`
 		);
 		ctx.body = pack(rendered);
+		setResponseType(ctx);
 	}
 };