fix(sequencer): fix escrow channel check when receiving non-refund ics20 packet #851
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joroshiba
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Mar 26, 2024
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…1162) ## Summary Rewrites the IBC denomation construction by parsing its prefix into segments. This fixes the incorrect removal of prefxies for source non-refund ics20 packets. ## Background follow up to #851 which was an audit fix - this fixes the fix by removing the source prefix correctly, in the case assets we're the source of are transferred in. previously, the entire prefix was removed, would would have been invalid if the asset was prefixed by multiple hops, eg. transfer/channel-1/transfer/channel-2/denom would have become just denom when it should have become transfer/channel-2/denom. ## Changes - refactor `astria_core::primitive::1::asset::Denom` to express its prefix as a list of segments - ensure that only full prefix segments are removed - make `Denom` construction a fallible operation by parsing it - removed a bunch of constructors as they were only used in tests and not otherwise ## Testing Provide exhaustive units. ## Related Issues Replaces #1131
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Summary
fix escrow channel balance check by:
dest_channelescrow balanceI had to put both the fixes in one PR to be able to add the unit tests (they would fail if only one issue was fixed)
Background
zellic audits + needs to match ics20 spec (https://github.com/cosmos/ibc/blob/0238989da88e790ec4daea7214ff3521cc264137/spec/app/ics-020-fungible-token-transfer/README.md)
Changes
dest_channelescrow balanceTesting
unit tests
Related Issues
closes #848 and #849