84 lines
2.3 KiB
TypeScript
84 lines
2.3 KiB
TypeScript
import * as mongo from 'mongodb';
|
|
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 Following from '../../models/following';
|
|
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: Router.IRouterContext) => {
|
|
const userId = new mongo.ObjectID(ctx.params.user);
|
|
|
|
// Get 'cursor' parameter
|
|
const [cursor = null, cursorErr] = $.type(ID).optional.get(ctx.request.query.cursor);
|
|
|
|
// Get 'page' parameter
|
|
const pageErr = !$.str.optional.or(['true', 'false']).ok(ctx.request.query.page);
|
|
const page: boolean = ctx.request.query.page === 'true';
|
|
|
|
// Validate parameters
|
|
if (cursorErr || pageErr) {
|
|
ctx.status = 400;
|
|
return;
|
|
}
|
|
|
|
// Verify user
|
|
const user = await User.findOne({
|
|
_id: userId,
|
|
host: null
|
|
});
|
|
|
|
if (user === null) {
|
|
ctx.status = 404;
|
|
return;
|
|
}
|
|
|
|
const limit = 10;
|
|
const partOf = `${config.url}/users/${userId}/following`;
|
|
|
|
if (page) {
|
|
// Construct query
|
|
const query = {
|
|
followerId: user._id
|
|
} as any;
|
|
|
|
// カーソルが指定されている場合
|
|
if (cursor) {
|
|
query._id = {
|
|
$lt: cursor
|
|
};
|
|
}
|
|
|
|
// Get followings
|
|
const followings = await Following
|
|
.find(query, {
|
|
limit: limit + 1,
|
|
sort: { _id: -1 }
|
|
});
|
|
|
|
// 「次のページ」があるかどうか
|
|
const inStock = followings.length === limit + 1;
|
|
if (inStock) followings.pop();
|
|
|
|
const renderedFollowees = await Promise.all(followings.map(following => renderFollowUser(following.followeeId)));
|
|
const rendered = renderOrderedCollectionPage(
|
|
`${partOf}?page=true${cursor ? `&cursor=${cursor}` : ''}`,
|
|
user.followingCount, renderedFollowees, partOf,
|
|
null,
|
|
inStock ? `${partOf}?page=true&cursor=${followings[followings.length - 1]._id}` : null
|
|
);
|
|
|
|
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);
|
|
}
|
|
};
|