[tor-commits] [stem/master] If exiting is disallowed then don't check rules

[atagar@xxxxxxxxxxxxxx]

commit 68f5a6b2907cd42414f363e6afa89381cbb0e8a5
Author: Damian Johnson <atagar@xxxxxxxxxxxxxx>
Date:   Sat Sep 23 19:02:50 2017 -0700

    If exiting is disallowed then don't check rules
    
    There's no point in iterating over our rules in can_exit_to() when we already
    know that no exiting is allowed. The is_exiting_allowed() is only ever invoked
    once due to caching, whereas can_exit_to() is invoked for every new input.
---
 stem/exit_policy.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/stem/exit_policy.py b/stem/exit_policy.py
index 25ed16ec..fd8c15c2 100644
--- a/stem/exit_policy.py
+++ b/stem/exit_policy.py
@@ -282,6 +282,9 @@ class ExitPolicy(object):
     :returns: **True** if exiting to this destination is allowed, **False** otherwise
     """
 
+    if not self.is_exiting_allowed():
+      return False
+
     for rule in self._get_rules():
       if rule.is_match(address, port, strict):
         return rule.is_accept

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