Manage channels permissions

Signed-off-by: Emmy D'Anello <emmy.danello@animath.fr>

chat/static/chat.js

@@ -25,6 +25,7 @@ document.addEventListener('DOMContentLoaded', () => {
      */
     function processMessage(data) {
         // TODO Implement chat protocol
+        console.log(data)
     }
 
     function setupSocket(nextDelay = 1000) {
@@ -46,6 +47,12 @@ document.addEventListener('DOMContentLoaded', () => {
             console.error('Chat socket closed unexpectedly, restarting…')
             setTimeout(() => setupSocket(2 * nextDelay), nextDelay)
         })
+
+        socket.addEventListener('open', e => {
+            socket.send(JSON.stringify({
+                'type': 'fetch_channels',
+            }))
+        })
     }
 
     setupSocket()