From 08b9469e2c71e06fdd70d607f281686746755073 Mon Sep 17 00:00:00 2001
From: Satya Ortiz-Gagne <satya.ortiz-gagne@mila.quebec>
Date: Mon, 10 Jun 2019 10:20:39 -0400
Subject: DAIDE - Added connection_handler and server

- Ability to open and close port when DAIDE games are started and stopped
- Can get the DAIDE port using a request
---
 diplomacy/daide/server.py | 73 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 diplomacy/daide/server.py

(limited to 'diplomacy/daide/server.py')

diff --git a/diplomacy/daide/server.py b/diplomacy/daide/server.py
new file mode 100644
index 0000000..ceca122
--- /dev/null
+++ b/diplomacy/daide/server.py
@@ -0,0 +1,73 @@
+# ==============================================================================
+# Copyright (C) 2019 - Philip Paquette
+#
+#  This program is free software: you can redistribute it and/or modify it under
+#  the terms of the GNU Affero General Public License as published by the Free
+#  Software Foundation, either version 3 of the License, or (at your option) any
+#  later version.
+#
+#  This program is distributed in the hope that it will be useful, but WITHOUT
+#  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+#  FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more
+#  details.
+#
+#  You should have received a copy of the GNU Affero General Public License along
+#  with this program.  If not, see <https://www.gnu.org/licenses/>.
+# ==============================================================================
+""" Parallel server to receive DAIDE communications """
+import logging
+from tornado import gen
+from tornado.iostream import StreamClosedError
+from tornado.tcpserver import TCPServer
+from diplomacy.daide.connection_handler import ConnectionHandler
+
+# Constants
+LOGGER = logging.getLogger(__name__)
+
+class Server(TCPServer):
+    """ Represents a server to receive DAIDE communications """
+    def __init__(self, master_server, game_id):
+        """ Contructor
+            :param master_server: the internal server
+            :param game_id: the game id for which this server will receive communications
+        """
+        super(Server, self).__init__()
+        self._master_server = master_server
+        self._game_id = game_id
+        self._registered_connections = {}
+
+    @property
+    def master_server(self):
+        """ Return the master server """
+        return self._master_server
+
+    @property
+    def game_id(self):
+        """ Return the game id associated with the server """
+        return self._game_id
+
+    def stop(self):
+        """ Stop the server and close all connections """
+        for connection_handler in self._registered_connections.values():
+            connection_handler.close_connection()
+        super(Server, self).stop()
+
+    @gen.coroutine
+    def handle_stream(self, stream, address):
+        """ Handle an open stream
+            :param stream: the stream to handle
+            :param address: the address of the client
+        """
+        LOGGER.info('Connection from client [%s]', str(address))
+
+        handler = ConnectionHandler()
+        handler.initialize(stream, self._master_server, self._game_id)
+        self._registered_connections[stream] = handler
+
+        try:
+            while not handler.stream.closed():
+                yield handler.read_stream()
+        except StreamClosedError:
+            LOGGER.error('[%s] disconnected', str(address))
+
+        del self._registered_connections[stream]
-- 
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