1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
import assert from 'node:assert'
import {DAY, SECOND} from '@atproto/common'
import {Express} from 'express'
import {AppContext} from '../context.js'
import {handler} from './util.js'
export default function (ctx: AppContext, app: Express) {
return app.get(
'/:linkId',
handler(async (req, res) => {
const linkId = req.params.linkId
const contentType = req.accepts(['html', 'json'])
assert(
typeof linkId === 'string',
'express guarantees id parameter is a string',
)
const found = await ctx.db.db
.selectFrom('link')
.selectAll()
.where('id', '=', linkId)
.executeTakeFirst()
if (!found) {
// potentially broken or mistyped link
res.setHeader('Cache-Control', 'no-store')
if (contentType === 'json') {
return res
.status(404)
.json({
error: 'NotFound',
message: 'Link not found',
})
.end()
}
// send the user to the app
res.setHeader('Location', `https://${ctx.cfg.service.appHostname}`)
return res.status(302).end()
}
// build url from original url in order to preserve query params
const url = new URL(
req.originalUrl,
`https://${ctx.cfg.service.appHostname}`,
)
url.pathname = found.path
res.setHeader('Cache-Control', `max-age=${(7 * DAY) / SECOND}`)
if (contentType === 'json') {
return res.json({url: url.href}).end()
}
res.setHeader('Location', url.href)
return res.status(301).end()
}),
)
}
|
