Verify raw Wasm in cargo contract verify
#1551
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cmichi
reviewed
Mar 20, 2024
Comment on lines
135
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141
| let mut reader = BufReader::new(file); | ||
| let mut buffer: [u8; 32] = [0; 32]; | ||
| reader | ||
| .read_exact(&mut buffer) | ||
| .context(format!("Failed to read contract binary {}", path.display()))?; | ||
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| let output_code_hash = CodeHash(buffer); |
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Why are you only reading the first 32 bytes of the Wasm binary here and then assume it's the hash?
ascjones
reviewed
Mar 20, 2024
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As commented, the whole files should be compared not just the first 32 bytes.
Also would be good to add to the existing integration test here.
In the issue it says:
We should add a argument --wasm that allows passing a binary obtained via e.g. cargo contract info --contract … --binary > contract.wasm.
If that is the common use case then it would be great to fetch that automatically, so you can just specify the account id in the verify command. @cmichi
ascjones
reviewed
Mar 21, 2024
Co-authored-by: Andrew Jones <ascjones@gmail.com>
ascjones
approved these changes
Mar 21, 2024
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Summary
Closes #1539
inkorpallet-contracts?Adds a raw verification of the contract against the reference wasm binary.
The command executes the code in the
Releasemode by default and then compares the wasm output with the reference contract.Checklist before requesting a review
CHANGELOG.md