201 lines
7 KiB
JavaScript
201 lines
7 KiB
JavaScript
require('dotenv').config()
|
|
const path = require('path')
|
|
const express = require('express')
|
|
const MongoClient = require('mongodb').MongoClient
|
|
const fs = require('fs')
|
|
const https = require('https')
|
|
const morgan = require('morgan')
|
|
const history = require('connect-history-api-fallback')
|
|
const { onShutdown } = require('node-graceful-shutdown')
|
|
const ActivitypubExpress = require('activitypub-express')
|
|
|
|
const { DOMAIN, KEY_PATH, CERT_PATH, CA_PATH, PORT_HTTPS, DB_URL, DB_NAME } = process.env
|
|
|
|
const app = express()
|
|
const client = new MongoClient(DB_URL, { useUnifiedTopology: true, useNewUrlParser: true })
|
|
const sslOptions = {
|
|
key: KEY_PATH && fs.readFileSync(path.join(__dirname, KEY_PATH)),
|
|
cert: CERT_PATH && fs.readFileSync(path.join(__dirname, CERT_PATH)),
|
|
ca: CA_PATH && fs.readFileSync(path.join(__dirname, CA_PATH))
|
|
}
|
|
const icon = {
|
|
type: 'Image',
|
|
mediaType: 'image/jpeg',
|
|
url: `https://${DOMAIN}/f/guppe.png`
|
|
}
|
|
|
|
const routes = {
|
|
actor: '/u/:actor',
|
|
object: '/o/:id',
|
|
activity: '/s/:id',
|
|
inbox: '/u/:actor/inbox',
|
|
outbox: '/u/:actor/outbox',
|
|
followers: '/u/:actor/followers',
|
|
following: '/u/:actor/following',
|
|
liked: '/u/:actor/liked',
|
|
collections: '/u/:actor/c/:id',
|
|
blocked: '/u/:actor/blocked',
|
|
rejections: '/u/:actor/rejections',
|
|
rejected: '/u/:actor/rejected',
|
|
shares: '/s/:id/shares',
|
|
likes: '/s/:id/likes'
|
|
}
|
|
const apex = ActivitypubExpress({
|
|
domain: DOMAIN,
|
|
actorParam: 'actor',
|
|
objectParam: 'id',
|
|
itemsPerPage: 100,
|
|
routes
|
|
})
|
|
|
|
app.use(morgan(':remote-addr - :remote-user [:date[clf]] ":method :url HTTP/:http-version" :status Accepts ":req[accept]" ":referrer" ":user-agent"'))
|
|
app.use(express.json({ type: apex.consts.jsonldTypes }), apex)
|
|
|
|
// Create new groups on demand whenever someone tries to access one
|
|
async function actorOnDemand (req, res, next) {
|
|
const actor = req.params.actor
|
|
if (!actor) {
|
|
return next()
|
|
}
|
|
const actorIRI = apex.utils.usernameToIRI(actor)
|
|
try {
|
|
if (!(await apex.store.getObject(actorIRI)) && actor.length <= 255) {
|
|
console.log(`Creating group: ${actor}`)
|
|
const summary = `I'm a group about ${actor}. Follow me to get all the group posts. Tag me to share with the group. Create other groups by searching for or tagging @yourGroupName@${DOMAIN}`
|
|
const actorObj = await apex.createActor(actor, `${actor} group`, summary, icon, 'Group')
|
|
await apex.store.saveObject(actorObj)
|
|
}
|
|
} catch (err) { return next(err) }
|
|
next()
|
|
}
|
|
// define routes using prepacakged middleware collections
|
|
app.route(routes.inbox)
|
|
.post(actorOnDemand, apex.net.inbox.post)
|
|
.get(actorOnDemand, apex.net.inbox.get)
|
|
app.route(routes.outbox)
|
|
.get(actorOnDemand, apex.net.outbox.get)
|
|
// no C2S at present
|
|
// .post(apex.net.outbox.post)
|
|
|
|
// replace apex's target actor validator with our create on demand method
|
|
app.get(routes.actor, actorOnDemand, apex.net.actor.get)
|
|
app.get(routes.followers, actorOnDemand, apex.net.followers.get)
|
|
app.get(routes.following, actorOnDemand, apex.net.following.get)
|
|
app.get(routes.liked, actorOnDemand, apex.net.liked.get)
|
|
app.get(routes.object, apex.net.object.get)
|
|
app.get(routes.activity, apex.net.activityStream.get)
|
|
app.get(routes.shares, apex.net.shares.get)
|
|
app.get(routes.likes, apex.net.likes.get)
|
|
app.get(
|
|
'/.well-known/webfinger',
|
|
apex.net.wellKnown.parseWebfinger,
|
|
actorOnDemand,
|
|
apex.net.validators.targetActor,
|
|
apex.net.wellKnown.respondWebfinger
|
|
)
|
|
|
|
app.on('apex-inbox', async ({ actor, activity, recipient, object }) => {
|
|
switch (activity.type.toLowerCase()) {
|
|
// automatically reshare incoming posts
|
|
case 'create': {
|
|
// check audience to ignore forwarded messages not adddressed to group
|
|
const audience = apex.audienceFromActivity(activity)
|
|
if (!audience.includes(recipient.id) || !activity.object?.length) {
|
|
return
|
|
}
|
|
const to = [
|
|
recipient.followers[0],
|
|
apex.consts.publicAddress
|
|
]
|
|
const share = await apex.buildActivity('Announce', recipient.id, to, {
|
|
object: activity.object[0].id
|
|
})
|
|
apex.addToOutbox(recipient, share)
|
|
break
|
|
}
|
|
// automatically accept follow requests
|
|
case 'follow': {
|
|
const accept = await apex.buildActivity('Accept', recipient.id, actor.id, {
|
|
object: activity.id
|
|
})
|
|
const { postTask: publishUpdatedFollowers } = await apex.acceptFollow(recipient, activity)
|
|
await apex.addToOutbox(recipient, accept)
|
|
return publishUpdatedFollowers()
|
|
}
|
|
}
|
|
})
|
|
|
|
/// Guppe web setup
|
|
// html/static routes
|
|
app.use(history({
|
|
index: '/web/index.html',
|
|
rewrites: [
|
|
// do not redirect webfinger et c.
|
|
{ from: /^\/\.well-known\//, to: context => context.request.originalUrl }
|
|
]
|
|
}))
|
|
app.use('/f', express.static('public/files'))
|
|
app.use('/web', express.static('web/dist'))
|
|
// web json routes
|
|
app.get('/groups', (req, res, next) => {
|
|
apex.store.db.collection('streams')
|
|
.aggregate([
|
|
{ $sort: { _id: -1 } }, // start from most recent
|
|
{ $limit: 10000 }, // don't traverse the entire history
|
|
{ $match: { type: 'Announce' } },
|
|
{ $group: { _id: '$actor', postCount: { $sum: 1 } } },
|
|
{ $lookup: { from: 'objects', localField: '_id', foreignField: 'id', as: 'actor' } },
|
|
// merge joined actor up
|
|
{ $replaceRoot: { newRoot: { $mergeObjects: [{ $arrayElemAt: ['$actor', 0] }, '$$ROOT'] } } },
|
|
{ $project: { _id: 0, _meta: 0, actor: 0 } }
|
|
])
|
|
.sort({ postCount: -1 })
|
|
.limit(Number.parseInt(req.query.n) || 50)
|
|
.toArray()
|
|
.then(groups => apex.toJSONLD({
|
|
id: `https://${DOMAIN}/groups`,
|
|
type: 'OrderedCollection',
|
|
totalItems: groups.length,
|
|
orderedItems: groups
|
|
}))
|
|
// .then(groups => { console.log(JSON.stringify(groups)); return groups })
|
|
.then(groups => res.json(groups))
|
|
.catch(err => {
|
|
console.log(err.message)
|
|
return res.status(500).send()
|
|
})
|
|
})
|
|
|
|
app.use(function (err, req, res, next) {
|
|
console.error(err.message, req.body, err.stack)
|
|
if (!res.headersSent) {
|
|
res.status(500).send('An error occurred while processing the request')
|
|
}
|
|
})
|
|
|
|
client.connect({ useNewUrlParser: true })
|
|
.then(async () => {
|
|
const { default: AutoEncrypt } = await import('@small-tech/auto-encrypt')
|
|
apex.store.db = client.db(DB_NAME)
|
|
await apex.store.setup()
|
|
apex.systemUser = await apex.store.getObject(apex.utils.usernameToIRI('system_service'), true)
|
|
if (!apex.systemUser) {
|
|
const systemUser = await apex.createActor('system_service', `${DOMAIN} system service`, `${DOMAIN} system service`, icon, 'Service')
|
|
await apex.store.saveObject(systemUser)
|
|
apex.systemUser = systemUser
|
|
}
|
|
|
|
const server = process.env.NODE_ENV === 'production'
|
|
? AutoEncrypt.https.createServer({ domains: [DOMAIN] }, app)
|
|
: https.createServer(sslOptions, app)
|
|
server.listen(PORT_HTTPS, function () {
|
|
console.log('Guppe server listening on port ' + PORT_HTTPS)
|
|
})
|
|
onShutdown(async () => {
|
|
await client.close()
|
|
await new Promise((resolve, reject) => {
|
|
server.close(err => (err ? reject(err) : resolve()))
|
|
})
|
|
console.log('Guppe server closed')
|
|
})
|
|
})
|