put the disconnection handling code back in place

labs/meteor-client/app/server/publish.coffee

@@ -3,10 +3,47 @@
 Meteor.publish 'users', (meetingId, userid) ->
   console.log "publishing users for #{meetingId}, #{userid}"
 
-  Meteor.Users.find(
-    {meetingId: meetingId},
-    {fields:{'userSecret': 0}
-    })
+  u = Meteor.Users.findOne({'userId': userid, 'meetingId': meetingId})
+  if u?
+    console.log "found it from the first time #{userid}"
+    username = u?.user?.name or "UNKNOWN"
+    Meteor.Users.update({'meetingId':meetingId, 'userId': userid}, {$set:{'user.connection_status': "online"}})
+    console.log "username of the subscriber: " + username + ", connection_status becomes online"
+
+    @_session.socket.on("close", Meteor.bindEnvironment(=>
+      console.log "\na user lost connection: session.id=#{@_session.id} userId = #{userid}, username=#{username}, meeting=#{meetingId}"
+      Meteor.Users.update({'meetingId':meetingId, 'userId': userid}, {$set:{'user.connection_status': "offline"}})
+      console.log "username of the user losing connection: " + username + ", connection_status: becomes offline"
+
+      # check the status of the user later to see if the user managed to reconnect
+      setTimeout(Meteor.bindEnvironment(=>
+        result = Meteor.Users.findOne({'userId': userid, 'meetingId': meetingId})?.user?.connection_status
+        if result is "online"
+          console.log "user #{userid} (#{username}) managed to reconnect in meeting #{meetingId}"
+        else
+          console.log "user #{userid} (#{username}) failed to reconnect in meeting #{meetingId} and will be kicked out of the meeting"
+          requestUserLeaving meetingId, userid
+        )
+      , 10000) #TODO pick this from config.coffee
+      )
+    )
+
+    Meteor.Users.find(
+      {meetingId: meetingId},
+      {fields:{'userSecret': 0}
+      })
+
+  else #subscribing before the user was added to the collection
+    Meteor.call "validateAuthToken", meetingId, userid, userid
+    console.log "there was no such user #{userid}  in #{meetingId}"
+
+# TODO switch the logging here with .info log
+
+
+
+
+
+
 
 
 Meteor.publish 'chat', (meetingId, userid) ->