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import * as express from 'express';
import context from '../../common/remote/activitypub/context';
import parseAcct from '../../common/user/parse-acct';
import config from '../../conf';
import DriveFile from '../../models/drive-file';
import Post from '../../models/post';
import User from '../../models/user';
const app = express();
app.disable('x-powered-by');
app.get('/@:user/:post', async (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);
}
const post = await Post.findOne({
_id: req.params.post,
userId: user._id
});
if (post === null) {
return res.sendStatus(404);
}
const asyncFiles = DriveFile.find({ _id: { $in: post.mediaIds } });
let inReplyTo;
if (post.replyId) {
const inReplyToPost = await Post.findOne({
_id: post.replyId,
});
if (inReplyToPost !== null) {
const inReplyToUser = await User.findOne({
_id: post.userId,
});
if (inReplyToUser !== null) {
inReplyTo = `${config.url}@${inReplyToUser.username}/${inReplyToPost._id}`;
}
}
} else {
inReplyTo = null;
}
const attributedTo = `${config.url}/@${user.username}`;
res.json({
'@context': context,
id: `${attributedTo}/${post._id}`,
type: 'Note',
attributedTo,
content: post.textHtml,
published: post.createdAt.toISOString(),
to: 'https://www.w3.org/ns/activitystreams#Public',
cc: `${attributedTo}/followers`,
inReplyTo,
attachment: (await asyncFiles).map(({ _id, contentType }) => ({
type: 'Document',
mediaType: contentType,
url: `${config.drive_url}/${_id}`
})),
tag: post.tags.map(tag => ({
type: 'Hashtag',
href: `${config.url}/search?q=#${encodeURIComponent(tag)}`,
name: '#' + tag
}))
});
});
export default app;
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