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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
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— send user to the app
res.setHeader('Location', `https://${ctx.cfg.service.appHostname}`)
res.setHeader('Cache-Control', 'no-store')
return res.status(302).end()
}
// build url from original url in order to preserve query params
const url = new URL(
req.originalUrl,
`https://${ctx.cfg.service.appHostname}`,
)
url.pathname = found.path
res.setHeader('Location', url.href)
res.setHeader('Cache-Control', `max-age=${(7 * DAY) / SECOND}`)
return res.status(301).end()
}),
)
}
|
