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kh: don't error during key validation

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Instead produce an Either.
This commit is contained in:
fang 2021-06-17 17:42:44 +02:00
parent f8d5a1644c
commit bdaad4cf84
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GPG Key ID: EB035760C1BBA972
1 changed files with 23 additions and 18 deletions
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41
pkg/hs/urbit-king/lib/Urbit/Vere/Dawn.hs
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@ -342,7 +342,9 @@ validateFeedAndGetSponsor :: String
validateFeedAndGetSponsor endpoint block = \case
Feed0 s -> do
r <- validateSeed s
pure (s, r)
case r of
Left e -> error e
Right r -> pure (s, r)
Feed1 s -> validateGerms s
where
@ -351,8 +353,8 @@ validateFeedAndGetSponsor endpoint block = \case
[] -> error "no usable keys in keyfile"
(Germ{..}:f) -> do
let seed = Seed gShip gLife gRing Nothing
r :: Either SomeException Ship
<- try do validateSeed seed
r :: Either String Ship
<- validateSeed seed
case r of
Left _ -> validateGerms $ Germs gShip f
Right r -> pure (seed, r)
@ -366,18 +368,20 @@ validateFeedAndGetSponsor endpoint block = \case
validateComet = do
-- A comet address is the fingerprint of the keypair
let shipFromPass = cometFingerprint $ ringToPass ring
when (ship /= shipFromPass) $
error ("comet name doesn't match fingerprint " <> show ship <> " vs " <>
show shipFromPass)
when (life /= 1) $
error ("comet can never be re-keyed")
pure (shipSein ship)
if (ship /= shipFromPass) then
pure $ Left ("comet name doesn't match fingerprint " <>
show ship <> " vs " <>
show shipFromPass)
else if (life /= 1) then
pure $ Left "comet can never be re-keyed"
else
pure $ Right (shipSein ship)
validateMoon = do
-- TODO: The current code in zuse does nothing, but we should be able
-- to try to validate the oath against the current as exists planet
-- on chain.
pure $ shipSein ship
pure $ Right $ shipSein ship
validateRest = do
putStrLn ("boot: retrieving " <> renderShip ship <> "'s public keys")
@ -385,17 +389,18 @@ validateFeedAndGetSponsor endpoint block = \case
--TODO could cache this lookup
whoP <- retrievePoint endpoint block ship
case epNet whoP of
Nothing -> error "ship not keyed"
Nothing -> pure $ Left "ship not keyed"
Just (netLife, pass, contNum, (hasSponsor, who), _) -> do
when (netLife /= life) $
error ("keyfile life mismatch; keyfile claims life " <>
show life <> ", but Azimuth claims life " <>
show netLife)
when ((ringToPass ring) /= pass) $
error "keyfile does not match blockchain"
if (netLife /= life) then
pure $ Left ("keyfile life mismatch; keyfile claims life " <>
show life <> ", but Azimuth claims life " <>
show netLife)
else if ((ringToPass ring) /= pass) then
pure $ Left "keyfile does not match blockchain"
-- TODO: The hoon code does a breach check, but the C code never
-- supplies the data necessary for it to function.
pure who
else
pure $ Right who
-- Walk through the sponsorship chain retrieving the actual sponsorship chain