From: Christian Heller <c.heller@plomlompom.de>
Date: Mon, 2 Nov 2020 02:50:13 +0000 (+0100)
Subject: Add SSL capabilities to TCP socket library.
X-Git-Url: https://plomlompom.com/repos/%22https:/validator.w3.org/task?a=commitdiff_plain;h=f01848a97bb686e2b9c823cdf7fc6b59072dbd79;p=plomrogue2-experiments

Add SSL capabilities to TCP socket library.
---

diff --git a/new2/plomrogue/io_tcp.py b/new2/plomrogue/io_tcp.py
index 45bf447..78e43f5 100644
--- a/new2/plomrogue/io_tcp.py
+++ b/new2/plomrogue/io_tcp.py
@@ -100,8 +100,27 @@ class PlomSocket:
 
 
 
+class PlomSocketSSL(PlomSocket):
+
+    def __init__(self, *args, server_side=False, **kwargs):
+        import ssl
+        print('DEBUG', args, kwargs)
+        super().__init__(*args, **kwargs)
+        if server_side:
+            self.socket = ssl.wrap_socket(self.socket, server_side=True,
+                                          certfile="server.pem",
+                                          keyfile="key.pem")
+        else:
+            self.socket = ssl.wrap_socket(self.socket)
+
+
+
 class IO_Handler(socketserver.BaseRequestHandler):
 
+    def __init__(self, *args, socket_class=PlomSocket, **kwargs):
+        self.socket_class = socket_class
+        super().__init__(*args, **kwargs)
+
     def handle(self):
         """Move messages between network socket and game IO loop via queues.
 
@@ -130,7 +149,10 @@ class IO_Handler(socketserver.BaseRequestHandler):
         import uuid
         import queue
         import threading
-        plom_socket = PlomSocket(self.request)
+        if self.socket_class == PlomSocketSSL:
+            plom_socket = self.socket_class(self.request, server_side=True)
+        else:
+            plom_socket = self.socket_class(self.request)
         print('CONNECTION FROM:', str(self.client_address))
         connection_id = uuid.uuid4()
         queue_in = queue.Queue()
@@ -154,12 +176,31 @@ class IO_Handler(socketserver.BaseRequestHandler):
 
 
 
+class IO_HandlerSSL(IO_Handler):
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, socket_class=PlomSocketSSL, **kwargs)
+
+
+
 class PlomTCPServer(socketserver.ThreadingTCPServer):
-    """Bind together threaded IO handling server and message queue."""
+    """Bind together threaded IO handling server and message queue.
+
+    By default this only serves to localhost connections.  For remote
+    connections, consider using PlomTCPServerSSL for more security,
+    which defaults to serving all connections.
+
+    """
 
-    def __init__(self, queue, port, *args, **kwargs):
-        super().__init__(('0.0.0.0', port), IO_Handler, *args, **kwargs)
+    def __init__(self, queue, port, host='127.0.0.1', io_handler=IO_Handler, *args, **kwargs):
+        super().__init__((host, port), io_handler, *args, **kwargs)
         self.queue_out = queue
         self.daemon_threads = True  # Else, server's threads have daemon=False.
         self.clients = {}
 
+
+
+class PlomTCPServerSSL(PlomTCPServer):
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, host='0.0.0.0', io_handler=IO_HandlerSSL, **kwargs)