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Trevor Porter c84a1dc73b feat: address blacklisting in the relayer (#4000) ... ### Description See context here https://discord.com/channels/935678348330434570/1236041564673806427/1252918894755319920 and https://discord.com/channels/935678348330434570/1252953507833708605/1252954456400592997 This is a rudimentary first step toward blacklisting addresses. Future options are outlined in https://discord.com/channels/935678348330434570/1236041564673806427/1252918894755319920. Eventually we can also fetch these addresses directly within the agent from an updated list that we cache and re-fetch occasionally. For now, this just relies on configured addresses. The approach is: - Allow hex addresses to be configured. These are intentionally treated as a Vec<u8> instead of an H160 / H256. This is because treating them as H160 is a leak of Ethereum-specific logic into non-chain-specific code in the relayer, and treating them as H256 would pad Ethereum addresses with a bunch of zeroes which would diminish the accuracy of our heuristic implemented in this. The subsequence stuff is a bit unfortunate because it's O(n^2) but 🤷‍♂️ - The heuristic is as follows - if any of the configured addresses are found as a subsequence in the message sender, recipient, or body, it's thrown out by the message processor, and the message will never make its way to the op_submitter. This heuristic for the body is to prevent warp route transfers that include that address. We could maybe convert Vec<u8> to H256 for the sender and recipient, I'm open to this - I just went with the substring approach bc it felt easiest tbh. ### Drive-by changes <!-- Are there any minor or drive-by changes also included? --> ### Related issues - Fixes https://github.com/hyperlane-xyz/issues/issues/1285 ### Backward compatibility <!-- Are these changes backward compatible? Are there any infrastructure implications, e.g. changes that would prohibit deploying older commits using this infra tooling? Yes/No --> ### Testing <!-- What kind of testing have these changes undergone? None/Manual/Unit Tests -->		5 months ago
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relayer	feat: address blacklisting in the relayer (#4000)	5 months ago
scraper	feat: deploy to new chains (fraxtal, linea, sei) (#3887)	5 months ago
validator	fix(cosmos): validator checkpoint & agent indexing improvements (#3958)	5 months ago