Improve WebCRT UX: real login transcript, session tools, and first-input sync.

Capture Netmiko session_log for login replay, open NE terminals in a fresh tab, tidy the device list UI with reconnect/log/clear/copy, and paint a live prompt after attach so the first keystrokes behave normally.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
oliver 2026-07-29 19:53:41 +08:00
parent 30f2db9708
commit 89ff0a7212
11 changed files with 593 additions and 183 deletions

View file

@ -14,6 +14,7 @@ from netx_api import webcrt_service as svc
class _FakeConn:
def __init__(self) -> None:
self.written: list[str] = []
self.RETURN = "\n"
self.remote_conn = MagicMock(spec=["recv_ready", "recv", "exit_status_ready", "resize_pty"])
self.remote_conn.recv_ready.return_value = False
self.remote_conn.exit_status_ready.return_value = False
@ -54,6 +55,9 @@ class WebcrtServiceTests(unittest.TestCase):
)
sess.write_stdin("show ver\n")
self.assertEqual(conn.written, ["show ver\n"])
# xterm Enter (\r) -> Netmiko RETURN (\n for SSH)
sess.write_stdin("\r")
self.assertEqual(conn.written[-1], "\n")
# xterm DEL / arrows -> network CLI controls
sess.write_stdin("\x7f")
self.assertEqual(conn.written[-1], "\x08")
@ -69,6 +73,15 @@ class WebcrtServiceTests(unittest.TestCase):
self.assertEqual(svc.map_network_cli_keys("\x1b[D"), "\x02")
self.assertTrue(svc.uses_network_cli_keymap("huawei", "Huawei"))
self.assertFalse(svc.uses_network_cli_keymap("linux", "bastion"))
self.assertEqual(svc.map_network_cli_enter("\r", _FakeConn()), "\n") # type: ignore[arg-type]
telnet = _FakeConn()
telnet.RETURN = "\r\n"
self.assertEqual(svc.map_network_cli_enter("\r", telnet), "\r\n") # type: ignore[arg-type]
self.assertEqual(svc.normalize_cli_transcript("R2#R2#\nR2#"), "R2#")
self.assertEqual(svc.normalize_cli_transcript("banner\nR2#R2#"), "banner\nR2#")
self.assertEqual(svc.prepare_bootstrap_output("login\nR2#\nR2#"), "login\n")
self.assertTrue(svc.prepare_bootstrap_output("login\nR2#").endswith("\n"))
self.assertFalse(svc._looks_like_cli_prompt(svc.prepare_bootstrap_output("login\nR2#").rstrip("\n") or "x"))
@patch.object(svc, "_audit")
@patch.object(svc, "open_netmiko_connection")
@ -133,7 +146,18 @@ class WebcrtServiceTests(unittest.TestCase):
},
)
fake = _FakeConn()
mock_open.return_value = fake
def _open_with_log(*_a, **kwargs):
log_buf = kwargs.get("session_log")
if log_buf is not None and hasattr(log_buf, "write"):
log_buf.write(
b"Warning: Telnet is not a secure protocol...\r\n"
b"Username:huawei\r\nPassword:\r\n"
b"<r1>"
)
return fake
mock_open.side_effect = _open_with_log
db = MagicMock()
out = svc.create_session(db, ne_id="ne-hop", cols=100, rows=30, client="test")
@ -141,15 +165,19 @@ class WebcrtServiceTests(unittest.TestCase):
called_creds = mock_open.call_args.args[0]
self.assertTrue(called_creds["hop_enabled"])
self.assertEqual(called_creds["hop_vendor"], "bastion")
self.assertIn("session_log", mock_open.call_args.kwargs)
fake.remote_conn.resize_pty.assert_called()
self.assertEqual(out["ne_id"], "ne-hop")
sess = svc.get_session(out["session_id"])
assert sess is not None
# create_session may nudge Enter when no prompt was drained.
boot = sess.bootstrap_output.decode("utf-8", errors="replace")
self.assertIn("Username:huawei", boot)
# Final prompt is stripped; live RETURN on WS attach paints the interactive prompt.
self.assertNotIn("<r1>", boot)
self.assertTrue(sess.needs_live_prompt)
before = list(fake.written)
sess.write_stdin("\n")
self.assertEqual(fake.written[len(before) :], ["\n"])
self.assertTrue(isinstance(sess.bootstrap_output, (bytes, bytearray)))
svc.close_session(out["session_id"], reason="test")
@patch.object(svc, "_audit")