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import * as mongo from 'mongodb';
import * as Router from 'koa-router';
const json = require('koa-json-body');
const httpSignature = require('http-signature');
import { createHttpJob } from '../queue';
import pack from '../remote/activitypub/renderer';
import Note from '../models/note';
import User, { isLocalUser, ILocalUser, IUser } from '../models/user';
import renderNote from '../remote/activitypub/renderer/note';
import renderKey from '../remote/activitypub/renderer/key';
import renderPerson from '../remote/activitypub/renderer/person';
import Outbox, { packActivity } from './activitypub/outbox';
import Followers from './activitypub/followers';
import Following from './activitypub/following';
import Featured from './activitypub/featured';
// Init router
const router = new Router();
//#region Routing
function inbox(ctx: Router.IRouterContext) {
let signature;
ctx.req.headers.authorization = `Signature ${ctx.req.headers.signature}`;
try {
signature = httpSignature.parseRequest(ctx.req, { 'headers': [] });
} catch (e) {
ctx.status = 401;
return;
}
createHttpJob({
type: 'processInbox',
activity: ctx.request.body,
signature
});
ctx.status = 202;
}
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);
// note
router.get('/notes/:note', async (ctx, next) => {
if (!isActivityPubReq(ctx)) return await next();
const note = await Note.findOne({
_id: new mongo.ObjectID(ctx.params.note),
visibility: { $in: ['public', 'home'] }
});
if (note === null) {
ctx.status = 404;
return;
}
ctx.body = pack(await renderNote(note, false));
ctx.set('Cache-Control', 'public, max-age=180');
setResponseType(ctx);
});
// note activity
router.get('/notes/:note/activity', async ctx => {
const note = await Note.findOne({
_id: new mongo.ObjectID(ctx.params.note),
visibility: { $in: ['public', 'home'] }
});
if (note === null) {
ctx.status = 404;
return;
}
ctx.body = pack(await packActivity(note));
ctx.set('Cache-Control', 'public, max-age=180');
setResponseType(ctx);
});
// outbox
router.get('/users/:user/outbox', Outbox);
// followers
router.get('/users/:user/followers', Followers);
// following
router.get('/users/:user/following', Following);
// featured
router.get('/users/:user/collections/featured', Featured);
// publickey
router.get('/users/:user/publickey', async ctx => {
const userId = new mongo.ObjectID(ctx.params.user);
const user = await User.findOne({
_id: userId,
host: null
});
if (user === null) {
ctx.status = 404;
return;
}
if (isLocalUser(user)) {
ctx.body = pack(renderKey(user));
ctx.set('Cache-Control', 'public, max-age=180');
setResponseType(ctx);
} else {
ctx.status = 400;
}
});
// user
async function userInfo(ctx: Router.IRouterContext, user: IUser) {
if (user === null) {
ctx.status = 404;
return;
}
ctx.body = pack(await renderPerson(user as ILocalUser));
ctx.set('Cache-Control', 'public, max-age=180');
setResponseType(ctx);
}
router.get('/users/:user', async ctx => {
const userId = new mongo.ObjectID(ctx.params.user);
const user = await User.findOne({
_id: userId,
host: null
});
await userInfo(ctx, user);
});
router.get('/@:user', async (ctx, next) => {
if (!isActivityPubReq(ctx)) return await next();
const user = await User.findOne({
usernameLower: ctx.params.user.toLowerCase(),
host: null
});
await userInfo(ctx, user);
});
//#endregion
export default router;
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