commit 033603a607a8aede9ba4496b029d2545808e560e Author: juga0 juga@riseup.net Date: Sun Dec 13 13:04:27 2020 +0000

fix: scanner: Retry to measure exit as exit

if it fails to be measured as entry.

Mayb closes: #40029. --- sbws/core/scanner.py | 11 +++++++++++ 1 file changed, 11 insertions(+)

diff --git a/sbws/core/scanner.py b/sbws/core/scanner.py index 8b6a6a4..5e6cac3 100644 --- a/sbws/core/scanner.py +++ b/sbws/core/scanner.py @@ -318,6 +318,17 @@ def measure_relay(args, conf, destinations, cb, rl, relay):

# Build the circuit circ_id, reason = cb.build_circuit(circ_fps) + if not circ_id and relay.fingerprint == circ_fps[0]: + # We detected that some exits fail to build circuits as 1st hop. + # If that's the case, try again using them as 2nd hop. + # We could reuse the helper, but it does not need to be an exit now, + # so choose other again. + helper = _pick_ideal_second_hop( + relay, dest, rl, cb.controller, is_exit=False) + if helper: + circ_fps = [helper.fingerprint, relay.fingerprint] + nicknames = [helper.nickname, relay.nickname] + circ_id, reason = cb.build_circuit(circ_fps) if not circ_id: log.debug('Could not build circuit with path %s (%s): %s ', circ_fps, nicknames, reason)