From 5e1e77a363137cc0010641e19e9cef0d12634bd3 Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Fri, 18 Sep 2020 19:24:06 -0400
Subject: [PATCH] Make consensus documents valid DistDelay seconds earlier.

This will prevent arti from hitting the same issue as
https://gitlab.torproject.org/tpo/core/tor/-/issues/25756
---
 tor-netdoc/src/netstatus.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tor-netdoc/src/netstatus.rs b/tor-netdoc/src/netstatus.rs
index 9c43f7d1c..171e0de95 100644
--- a/tor-netdoc/src/netstatus.rs
+++ b/tor-netdoc/src/netstatus.rs
@@ -1106,7 +1106,10 @@ impl MDConsensus {
             n_authorities: None,
         };
         let lifetime = unval.consensus.header.hdr.lifetime.clone();
-        let timebound = TimerangeBound::new(unval, lifetime.valid_after..lifetime.valid_until);
+        let delay = unval.consensus.header.hdr.voting_delay.unwrap_or((0, 0));
+        let dist_interval = time::Duration::from_secs(delay.1.into());
+        let starting_time = lifetime.valid_after - dist_interval;
+        let timebound = TimerangeBound::new(unval, starting_time..lifetime.valid_until);
         Ok(timebound)
     }
 }