From a3391ffe8a90f3a051a7dc7b12949977228db628 Mon Sep 17 00:00:00 2001
From: nico <nico@beerfactory.org>
Date: Thu, 2 Jul 2015 14:10:26 +0200
Subject: [PATCH] HBMQTT-6 Add publish messages reception co-routine (WIP)

---
 hbmqtt/mqtt/protocol.py | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/hbmqtt/mqtt/protocol.py b/hbmqtt/mqtt/protocol.py
index 3751929..685d9d4 100644
--- a/hbmqtt/mqtt/protocol.py
+++ b/hbmqtt/mqtt/protocol.py
@@ -12,6 +12,9 @@ from hbmqtt.mqtt.disconnect import DisconnectPacket
 from hbmqtt.mqtt.pingreq import PingReqPacket
 from hbmqtt.mqtt.publish import PublishPacket
 from hbmqtt.mqtt.pubrel import PubrelPacket
+from hbmqtt.mqtt.puback import PubackPacket
+from hbmqtt.mqtt.pubrec import PubrecPacket
+from hbmqtt.mqtt.pubcomp import PubcompPacket
 from hbmqtt.mqtt.subscribe import SubscribePacket
 from hbmqtt.mqtt.unsubscribe import UnsubscribePacket
 from hbmqtt.session import Session
@@ -65,6 +68,7 @@ class ProtocolHandler:
         self.session.local_address, self.session.local_port = self.session.writer.get_extra_info('sockname')
 
         self.incoming_queues = dict()
+        self.application_messages = asyncio.Queue()
         for p in PacketType:
             self.incoming_queues[p] = asyncio.Queue()
         self.outgoing_queue = asyncio.Queue()
@@ -234,6 +238,27 @@ class ProtocolHandler:
                 self.logger.warn("Packet type incompatible with message QOS: %s" % me)
         self.logger.debug("In-flight messages polling coro stopped")
 
+    @asyncio.coroutine
+    def _receive_publish_coro(self):
+        while self._running:
+            message = yield from self.incoming_queues[PacketType.PUBLISH].get()
+            yield self.application_messages.put(message)
+            message_id = message.fixed_header.packet_id
+            if (message.fixed_header.flags >> 1) & 0x01:
+                # QOS 1
+                yield from self.outgoing_queue.put(PubackPacket.build(message_id))
+            if (message.fixed_header.flags >> 1) & 0x02:
+                # QOS 2
+                yield from self.outgoing_queue.put(PubrecPacket.build(message_id))
+
+    @asyncio.coroutine
+    def mqtt_deliver_next_message(self):
+        message = yield from self.application_messages.get()
+        message_id = message.fixed_header.packet_id
+        if (message.fixed_header.flags >> 1) & 0x02:
+            # QOS 2
+            yield from self.outgoing_queue.put(PubrecPacket.build(message_id))
+        return message
 
 class Subscription:
     states = ['new', 'subscribed', 'acknowledged']