adding initial support for nodeinfo

server/controllers/static.ts

@@ -1,11 +1,16 @@
 import * as cors from 'cors'
 import * as express from 'express'
-import { CONFIG, STATIC_DOWNLOAD_PATHS, STATIC_MAX_AGE, STATIC_PATHS } from '../initializers'
+import { CONFIG, STATIC_DOWNLOAD_PATHS, STATIC_MAX_AGE, STATIC_PATHS, ROUTE_CACHE_LIFETIME } from '../initializers'
 import { VideosPreviewCache } from '../lib/cache'
+import { cache } from '../middlewares/cache'
 import { asyncMiddleware, videosGetValidator } from '../middlewares'
 import { VideoModel } from '../models/video/video'
 import { VideosCaptionCache } from '../lib/cache/videos-caption-cache'
+import { UserModel } from '../models/account/user'
+import { VideoCommentModel } from '../models/video/video-comment'
+import { HttpNodeinfoDiasporaSoftwareNsSchema20 } from '../models/nodeinfo'
 
+const packageJSON = require('../../../package.json')
 const staticRouter = express.Router()
 
 staticRouter.use(cors())
@@ -65,10 +70,32 @@ staticRouter.use(
 )
 
 // robots.txt service
-staticRouter.get('/robots.txt', (req: express.Request, res: express.Response) => {
-  res.type('text/plain')
-  return res.send(CONFIG.INSTANCE.ROBOTS)
-})
+staticRouter.get('/robots.txt',
+  asyncMiddleware(cache(ROUTE_CACHE_LIFETIME.ROBOTS)),
+  (_, res: express.Response) => {
+    res.type('text/plain')
+    return res.send(CONFIG.INSTANCE.ROBOTS)
+  }
+)
+
+// nodeinfo service
+staticRouter.use('/.well-known/nodeinfo',
+  asyncMiddleware(cache(ROUTE_CACHE_LIFETIME.NODEINFO)),
+  (_, res: express.Response) => {
+    return res.json({
+      links: [
+        {
+          rel: 'http://nodeinfo.diaspora.software/ns/schema/2.0',
+          href: CONFIG.WEBSERVER.URL + '/nodeinfo/2.0.json'
+        }
+      ]
+    })
+  }
+)
+staticRouter.use('/nodeinfo/:version.json',
+  asyncMiddleware(cache(ROUTE_CACHE_LIFETIME.NODEINFO)),
+  asyncMiddleware(generateNodeinfo)
+)
 
 // ---------------------------------------------------------------------------
 
@@ -95,6 +122,54 @@ async function getVideoCaption (req: express.Request, res: express.Response) {
   return res.sendFile(path, { maxAge: STATIC_MAX_AGE })
 }
 
+async function generateNodeinfo (req: express.Request, res: express.Response, next: express.NextFunction) {
+  const { totalVideos } = await VideoModel.getStats()
+  const { totalLocalVideoComments } = await VideoCommentModel.getStats()
+  const { totalUsers } = await UserModel.getStats()
+  let json = {}
+
+  if (req.params.version && (req.params.version === '2.0')) {
+    json = {
+      version: '2.0',
+      software: {
+        name: 'peertube',
+        version: packageJSON.version
+      },
+      protocols: [
+        'activitypub'
+      ],
+      services: {
+        inbound: [],
+        outbound: [
+          'atom1.0',
+          'rss2.0'
+        ]
+      },
+      openRegistrations: CONFIG.SIGNUP.ENABLED,
+      usage: {
+        users: {
+          total: totalUsers
+        },
+        localPosts: totalVideos,
+        localComments: totalLocalVideoComments
+      },
+      metadata: {
+        taxonomy: {
+          postsName: 'Videos'
+        },
+        nodeName: CONFIG.INSTANCE.NAME,
+        nodeDescription: CONFIG.INSTANCE.SHORT_DESCRIPTION
+      }
+    } as HttpNodeinfoDiasporaSoftwareNsSchema20
+    res.set('Content-Type', 'application/json; profile=http://nodeinfo.diaspora.software/ns/schema/2.0#; charset=utf-8')
+  } else {
+    json = { error: 'Nodeinfo schema version not handled' }
+    res.status(404)
+  }
+
+  return res.end(JSON.stringify(json))
+}
+
 async function downloadTorrent (req: express.Request, res: express.Response, next: express.NextFunction) {
   const { video, videoFile } = getVideoAndFile(req, res)
   if (!videoFile) return res.status(404).end()