#6 Add support for IPv6.

README.md

@@ -74,6 +74,16 @@ receive traffic from. For example, if your jetforce server is running on
 that do not match this hostname will be refused by the server, including
 URLs that use a direct IP address such as "gemini://174.138.124.169".
 
+### Setting the ``host``
+
+The server's host should be set to the local socket address that you want to
+bind to:
+
+- ``--host 127.0.0.1`` - Accept local connections only
+- ``--host 0.0.0.0`` - Accept remote connections over IPv4
+- ``--host ::`` - Accept remote connections over IPv6
+- ``--host ""`` - Accept remote connections over any interface (IPv4 + IPv6)
+
 ### TLS Certificates
 
 The gemini specification *requires* that all connections be sent over TLS.

jetforce.py

@@ -9,6 +9,7 @@ import mimetypes
 import os
 import pathlib
 import re
+import socket
 import ssl
 import subprocess
 import sys
@@ -579,12 +580,13 @@ class GeminiServer:
             self.accept_connection, self.host, self.port, ssl=self.ssl_context
         )
 
-        if server.sockets:
-            socket_host, socket_port = server.sockets[0].getsockname()
-        else:
-            socket_host, socket_port = None, None
         self.log_message(f"Server hostname is {self.hostname}")
-        self.log_message(f"Listening on {socket_host}:{socket_port}")
+        for sock in server.sockets:
+            sock_ip, sock_port, *_ = sock.getsockname()
+            if sock.family == socket.AF_INET:
+                self.log_message(f"Listening on {sock_ip}:{sock_port}")
+            else:
+                self.log_message(f"Listening on [{sock_ip}]:{sock_port}")
 
         async with server:
             await server.serve_forever()