fix: use @chainsafe/is-ip #280
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Will need a follow up PR to replace |
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Thanks! |
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## [11.0.6](v11.0.5...v11.0.6) (2022-10-29) ### Bug Fixes * use @chainsafe/is-ip ([#280](#280)) ([40124ff](40124ff))
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🎉 This PR is included in version 11.0.6 🎉 The release is available on: Your semantic-release bot 📦🚀 |
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Problem:
is-ip5.0.0 is significantly slower than 4.0.0. This is due to adding protection against regex DoS.It does so by wrapping its regex calls in
node:vmapis with a timeout.Although the resulting code is protected against regex DoS, its also ~6000x slower, so slow that it shows up with non-negligible time in Lodestar cpu profiles.
Solution:
Replace
is-ipdependency with@chainsafe/is-ip.@chainsafe/is-ipis a drop-in replacement foris-ipthat is a transliteration of some of rust's std net code - this.It's ~300x faster for valid IPv4 values, ~30x faster for valid IPv6 values than
is-ip5.0.0. And it's not vulnerable to regex DoS because it doesn't use regex, rather it uses a simple parser built just for the job of parsing IP addr strings.See discussion: