Try to make a better communication (between pods) module

server/controllers/api/v1/remote.js

@@ -0,0 +1,80 @@
+'use strict'
+
+const async = require('async')
+const express = require('express')
+
+const middlewares = require('../../../middlewares')
+const secureMiddleware = middlewares.secure
+const reqValidator = middlewares.reqValidators.remote
+const logger = require('../../../helpers/logger')
+const Videos = require('../../../models/videos')
+const videos = require('../../../lib/videos')
+
+const router = express.Router()
+
+router.post('/videos',
+  reqValidator.signature,
+  reqValidator.dataToDecrypt,
+  secureMiddleware.decryptBody,
+  reqValidator.remoteVideos,
+  remoteVideos
+)
+
+// ---------------------------------------------------------------------------
+
+module.exports = router
+
+// ---------------------------------------------------------------------------
+
+function remoteVideos (req, res, next) {
+  const requests = req.body.data
+  const fromUrl = req.body.signature.url
+
+  // We need to process in the same order to keep consistency
+  // TODO: optimization
+  async.eachSeries(requests, function (request, callbackEach) {
+    const video = request.data
+
+    if (request.type === 'add') {
+      addRemoteVideo(video, callbackEach)
+    } else if (request.type === 'remove') {
+      removeRemoteVideo(video, fromUrl, callbackEach)
+    }
+  })
+
+  // We don't need to keep the other pod waiting
+  return res.type('json').status(204).end()
+}
+
+function addRemoteVideo (videoToCreate, callback) {
+  videos.createRemoteVideos([ videoToCreate ], function (err, remoteVideos) {
+    if (err) {
+      logger.error('Cannot create remote videos.', { error: err })
+      // Don't break the process
+    }
+
+    return callback()
+  })
+}
+
+function removeRemoteVideo (videoToRemove, fromUrl, callback) {
+  const magnetUris = [ videoToRemove.magnetUri ]
+
+  // We need the list because we have to remove some other stuffs (thumbnail etc)
+  Videos.listFromUrlAndMagnets(fromUrl, magnetUris, function (err, videosList) {
+    if (err) {
+      logger.error('Cannot list videos from url and magnets.', { error: err })
+      // Don't break the process
+      return callback()
+    }
+
+    videos.removeRemoteVideos(videosList, function (err) {
+      if (err) {
+        logger.error('Cannot remove remote videos.', { error: err })
+        // Don't break the process
+      }
+
+      return callback()
+    })
+  })
+}