fix(node): the answer log names its host addresses

aiortc ends a host candidate line at `typ host`, so the match on
" typ host " found none and logged `host: none` for every answer.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/packages/meshbay-node/tests/test_answer_host_log.py b/packages/meshbay-node/tests/test_answer_host_log.py
new file mode 100644
index 00000000..cde4e54b
--- /dev/null
+++ b/packages/meshbay-node/tests/test_answer_host_log.py
@@ -0,0 +1,30 @@
+"""
+The node's log names the host addresses it put in its answer.
+
+It is the first thing read when a member reports "DataChannel closed", and it
+read `host: none` for every answer: the match wanted `" typ host "` with a space
+after it, and aiortc ends a host candidate line at `typ host`. The addresses
+below are the test node's of 2026-10-16.
+"""
+
+from meshbay_node.transport.webrtc_server import _host_addresses
+
+ANSWER = "\r\n".join([
+    "v=0",
+    "m=application 9 UDP/DTLS/SCTP webrtc-datachannel",
+    "a=candidate:7d8e0b5c 1 udp 2130706431 192.168.1.22 40125 typ host",
+    "a=candidate:3f1a9e22 1 udp 2130706431 2a01:cb15:80e8:de00:d455:bcab:c324:4d72 40125 typ host",
+    "a=candidate:c0a8c8fe 1 udp 2130706431 192.168.200.254 40125 typ host",
+    "a=candidate:9b0f1d47 1 udp 1694498815 90.112.206.172 40125 typ srflx raddr 192.168.1.22 rport 40125",
+    "a=end-of-candidates",
+]) + "\r\n"
+
+
+def test_host_candidates_ending_the_line_are_counted():
+    assert _host_addresses(ANSWER) == {
+        "192.168.1.22", "2a01:cb15:80e8:de00:d455:bcab:c324:4d72", "192.168.200.254"}
+
+
+def test_other_candidates_and_lines_are_not():
+    assert _host_addresses("a=candidate:1 1 udp 1 90.112.206.172 9 typ srflx\r\n"
+                           "a=ice-ufrag:typ host\r\n") == set()