pallet-referenda: Detect incorrect pre-image length #3850
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There has been a case that a referenda failed because the length given to `submit` was incorrect. The pallet can actually check the length if the pre-image already exists to ensure that these kind of issues are not happening again.
liamaharon
approved these changes
Mar 27, 2024
joepetrowski
approved these changes
Mar 27, 2024
substrate/frame/referenda/src/lib.rs
Outdated
| // If the pre-image is already stored, ensure that it has the same length as given in | ||
| // `proposal`. | ||
| if let Some(hash) = proposal.lookup_hash() { | ||
| if let Some((l, r)) = |
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Suggested change
| if let Some((l, r)) = | |
| if let Some((preimage_length, proposal_length)) = |
😅
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ensure!(
proposal.lookup_hash()
.and_then(|hash| T::Preimages::len(&hash))
.map(|hash_len| hash_len != proposal.lookup_len().unwrap_or(u32::MAX))
.unwrap_or(true),
Error::<T, I>::PreimageStoredWithDifferentLength
)
just playing some Option API games :D
Ank4n
approved these changes
Mar 27, 2024
ggwpez
approved these changes
Mar 27, 2024
dharjeezy
pushed a commit
to dharjeezy/polkadot-sdk
that referenced
this pull request
Apr 9, 2024
There has been a case that a referenda failed because the length given to `submit` was incorrect. The pallet can actually check the length if the pre-image already exists to ensure that these kind of issues are not happening again.
This was referenced Jun 5, 2024
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There has been a case that a referenda failed because the length given to
submitwas incorrect. The pallet can actually check the length if the pre-image already exists to ensure that these kind of issues are not happening again.