WIP: store and get relation between rooms and channels:

* rebuildData
* handling video update (to check for channel changes)

server/lib/prosody/api/host.ts

@@ -0,0 +1,41 @@
+interface ProsodyHost {
+  host: string
+  port: string
+}
+
+let current: ProsodyHost | undefined
+
+/**
+ * When loading Prosody, keep track of the current host and port.
+ * @param host host
+ * @param port port
+ */
+function setCurrentProsody (host: string, port: string): void {
+  current = {
+    host,
+    port
+  }
+}
+
+/**
+ * When stopping Prosody, delete current host and port.
+ */
+function delCurrentProsody (): void {
+  current = undefined
+}
+
+/**
+ * Get the current Prosody host infos.
+ * @returns Prosody host info
+ */
+function getCurrentProsody (): ProsodyHost | null {
+  // cloning to avoid issues
+  if (!current) { return null }
+  return Object.assign({}, current)
+}
+
+export {
+  setCurrentProsody,
+  delCurrentProsody,
+  getCurrentProsody
+}

server/lib/prosody/api/list-rooms.ts

@@ -0,0 +1,41 @@
+import type { RegisterServerOptions } from '@peertube/peertube-types'
+import { getCurrentProsody } from './host'
+import { getAPIKey } from '../../apikey'
+const got = require('got')
+
+interface ProsodyRoomDesc {
+  jid: string
+  localpart: string
+  name: string
+  lang: string
+  description: string
+  lasttimestamp?: number
+}
+
+async function listProsodyRooms (options: RegisterServerOptions): Promise<ProsodyRoomDesc[]> {
+  const logger = options.peertubeHelpers.logger
+
+  const currentProsody = getCurrentProsody()
+  if (!currentProsody) {
+    throw new Error('It seems that prosody is not binded... Cant list rooms.')
+  }
+
+  // Requesting on localhost, because currentProsody.host does not always resolves correctly (docker use case, ...)
+  const apiUrl = `http://localhost:${currentProsody.port}/peertubelivechat_list_rooms/list-rooms`
+  logger.debug('Calling list rooms API on url: ' + apiUrl)
+  const rooms = await got(apiUrl, {
+    method: 'GET',
+    headers: {
+      authorization: 'Bearer ' + await getAPIKey(options),
+      host: currentProsody.host
+    },
+    responseType: 'json',
+    resolveBodyOnly: true
+  })
+
+  return rooms
+}
+
+export {
+  listProsodyRooms
+}