Fix isAuthorized task by changing a test that check for empty hex#926
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Fix isAuthorized task by changing a test that check for empty hex#926
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krhubert
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Apr 30, 2019
| // get service from version hash | ||
| const sidHash = await contract.methods.versionHashToService(hashToHex(versionHash)).call() | ||
| if (hexToString(sidHash) === "") { | ||
| if (Number(sidHash) === 0) { |
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what type sidHash is? what about Number overflow? are you 100% sure that there is not a signel sidHash that give 0 during the cast?
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I tried with multiple values and it worked correctly:
> Number('0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff') === 0 ? "nok" : "ok"
'ok'
> Number('0x0000000000000000000000000000000000000000000000000000000000000001') === 0 ? "nok" : "ok"
'ok'
> Number('0x164475976c7f1b9abeee539b6fc35097c31148be1957c0746f30069b4ad022a4') === 0 ? "nok" : "ok"
'ok'
> Number('0x0000000000000000000000000000000000000000000000000000000000000000') === 0 ? "nok" : "ok"
'nok'
The function versionHashToService returns 0x0000000000000000000000000000000000000000000000000000000000000000 when the versionHash is not found.
krhubert
approved these changes
May 1, 2019
antho1404
approved these changes
May 1, 2019
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The function
hexToStringneeds a valid utf8 to not throw an error.It was used to test if the
sidHashwas empty or not. The sidHash is not an utf8 but a keccak.I replaced it by a conversion to number to make the same test.