electrum

commit ac67f7ae30b2a84d7a1ce44bcb03e4b20292a443
parent 1322fa6a08f6c591a1911b233e7d6b509c09538a
Author: ThomasV <thomasv@electrum.org>
Date:   Sun, 10 May 2020 12:16:16 +0200

discard channel updates too far in the future, or too close apart (see #6124)

Diffstat:
M
electrum/channel_db.py
 | 
4
+++-

1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/electrum/channel_db.py b/electrum/channel_db.py
@@ -404,6 +404,8 @@ class ChannelDB(SqlDB):
         timestamp = payload['timestamp']
         if max_age and now - timestamp > max_age:
             return UpdateStatus.EXPIRED
+        if timestamp - now > 60:
+            return UpdateStatus.DEPRECATED
         channel_info = self._channels.get(short_channel_id)
         if not channel_info:
             return UpdateStatus.ORPHANED
@@ -417,7 +419,7 @@ class ChannelDB(SqlDB):
         short_channel_id = ShortChannelID(payload['short_channel_id'])
         key = (start_node, short_channel_id)
         old_policy = self._policies.get(key)
-        if old_policy and timestamp <= old_policy.timestamp:
+        if old_policy and timestamp <= old_policy.timestamp + 60:
             return UpdateStatus.DEPRECATED
         if verify:
             self.verify_channel_update(payload)