1 files changed, 89 insertions, 0 deletions
diff --git a/server/masterserverclient.py b/server/masterserverclient.py
new file mode 100644
index 00000000..49af0435
--- /dev/null
+++ b/server/masterserverclient.py
@@ -0,0 +1,89 @@
+# tsuserver3, an Attorney Online server
+#
+# Copyright (C) 2016 argoneus <argoneuscze@gmail.com>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+import asyncio
+import time
+from server import logger
+
+
+class MasterServerClient:
+    def __init__(self, server):
+        self.server = server
+        self.reader = None
+        self.writer = None
+
+    async def connect(self):
+        loop = asyncio.get_event_loop()
+        while True:
+            try:
+                self.reader, self.writer = await asyncio.open_connection(self.server.config['masterserver_ip'],
+                                                                         self.server.config['masterserver_port'],
+                                                                         loop=loop)
+                await self.handle_connection()
+            except (ConnectionRefusedError, TimeoutError):
+                pass
+            except (ConnectionResetError, asyncio.IncompleteReadError):
+                self.writer = None
+                self.reader = None
+            finally:
+                logger.log_debug("Couldn't connect to the master server, retrying in 30 seconds.")
+                print("Couldn't connect to the master server, retrying in 30 seconds.")
+                await asyncio.sleep(30)
+
+    async def handle_connection(self):
+        logger.log_debug('Master server connected.')
+        await self.send_server_info()
+        fl = False
+        lastping = time.time() - 20
+        while True:
+            self.reader.feed_data(b'END')
+            full_data = await self.reader.readuntil(b'END')
+            full_data = full_data[:-3]
+            if len(full_data) > 0:
+                data_list = list(full_data.split(b'#%'))[:-1]
+                for data in data_list:
+                    raw_msg = data.decode()
+                    cmd, *args = raw_msg.split('#')
+                    if cmd != 'CHECK' and cmd != 'PONG':
+                        logger.log_debug('[MASTERSERVER][INC][RAW]{}'.format(raw_msg))
+                    elif cmd == 'CHECK':
+                        await self.send_raw_message('PING#%')
+                    elif cmd == 'PONG':
+                        fl = False
+                    elif cmd == 'NOSERV':
+                        await self.send_server_info()
+            if time.time() - lastping > 5:
+                if fl:
+                    return
+                lastping = time.time()
+                fl = True
+                await self.send_raw_message('PING#%')
+            await asyncio.sleep(1)
+
+    async def send_server_info(self):
+        cfg = self.server.config
+        msg = 'SCC#{}#{}#{}#{}#%'.format(cfg['port'], cfg['masterserver_name'], cfg['masterserver_description'],
+                                         self.server.software)
+        await self.send_raw_message(msg)
+
+    async def send_raw_message(self, msg):
+        try:
+            self.writer.write(msg.encode())
+            await self.writer.drain()
+        except ConnectionResetError:
+            return