From 25d3aa7a7333d93c44459004418de2fb598d73bb Mon Sep 17 00:00:00 2001
From: Hipstercat <tasty@hipstercat.fr>
Date: Tue, 15 Jan 2019 23:22:43 +0100
Subject: [PATCH] Initial commit

---
 masterserver.py | 98 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 masterserver.py

diff --git a/masterserver.py b/masterserver.py
new file mode 100644
index 0000000..70c766e
--- /dev/null
+++ b/masterserver.py
@@ -0,0 +1,98 @@
+import socket
+import threading
+import datetime
+import time
+import traceback
+
+SERVERS = [{"ip": "163.158.182.243", "port": 19711, "last":datetime.datetime.now()}, {"ip": "206.55.174.10", "port": 19711, "last": datetime.datetime.now()}]
+
+def main():
+    listen_ip = "0.0.0.0"
+
+    registersock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+    registersock.bind((listen_ip, 27900))
+    print("Listening on", listen_ip, 27900)
+
+    querysock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    querysock.bind((listen_ip, 28900))
+    print("Listening on", listen_ip, 28900)
+    querysock.listen(5)
+
+    registerthread = threading.Thread(target=registerloop, args=(registersock,))
+    querythread = threading.Thread(target=queryloop, args=(querysock,))
+    cleanthread = threading.Thread(target=cleanloop)
+
+    querythread.start()
+    registerthread.start()
+    cleanthread.start()
+
+    querythread.join()
+    registerthread.join()
+    cleanthread.join()
+
+
+def queryloop(querysock):
+    while True:
+        (clientsocket, (_, _)) = querysock.accept()
+        print("A new client has come")
+        b = b''
+        for i in range(len(SERVERS)):
+            b += "{:02d}".format(i).encode("ascii")
+            b += b'\xac'
+            b += SERVERS[i]["ip"].encode("ascii")
+            b += b'\xac'
+            b += str(SERVERS[i]["port"]).encode("ascii")
+            if not i == len(SERVERS) - 1:
+                b += b'\xac'
+        b += b'\x00'
+        print("Sending back", b)
+        clientsocket.send(b)
+
+def registerloop(registersock):
+    while True:
+        data, (ip, port) = registersock.recvfrom(1024)
+        print("New register", data)
+        print(ip, port)
+        try:
+            if data[0] == 49:
+                gameport = data[1:].decode("ascii")
+                print("Gameport %s" % gameport)
+                if int(gameport):
+                    tempsocket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+                    tempsocket.settimeout(5)
+                    tempsocket.sendto("\\status\\".encode("ascii"), (ip, port))
+                    tempsocket.recvfrom(1024)
+                    server = next((x for x in SERVERS if x["ip"] == ip and x["port"] == gameport), None)
+                    if not server:
+                        SERVERS.append({"ip": ip, "port": gameport, "last": datetime.datetime.now()})
+                        print("New server: %s:%s" % (ip, gameport))
+                    else:
+                        server["last"] = datetime.datetime.now()
+                        print("Keepalive from: %s:%s" % (ip, gameport))
+                    tempsocket.close()
+                else:
+                    print("Fuck it, wasn't int: ", gameport)
+            else:
+                print('data[0]: ', data[0])
+        except Exception as e:
+            print("Exception")
+            traceback.print_exc()
+
+def cleanloop():
+    while True:
+        now = datetime.datetime.now()
+        for server in SERVERS:
+            if now > server["last"] + datetime.timedelta(minutes=2):
+                if server["ip"] == "163.158.182.243" or server["ip"] == "206.55.174.10":
+                    # do not remove usual dedicated servers
+                    continue
+                print("Deleting %s:%s" % (server["ip"], server["port"]))
+                try:
+                    SERVERS.remove(server)
+                except ValueError:
+                    pass
+        time.sleep(10)
+
+
+if __name__ == '__main__':
+    main()
\ No newline at end of file