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filter out control characters in error messages

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giveup changed to filter out control characters. (It is too low level to
make it use StringContainingQuotedPath.)

error still does not, but it should only be used for internal errors,
where the message is not attacker-controlled.

Changed a lot of existing error to giveup when it is not strictly an
internal error.

Of course, other exceptions can still be thrown, either by code in
git-annex, or a library, that include some attacker-controlled value.
This does not guard against those.

Sponsored-by: Noam Kremen on Patreon
This commit is contained in:
Joey Hess 2023-04-10 13:38:14 -04:00
parent 063c00e4f7
commit cd544e548b
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GPG key ID: DB12DB0FF05F8F38
69 changed files with 142 additions and 103 deletions
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4
Assistant/MakeRemote.hs
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@ -47,7 +47,7 @@ addRemote :: Annex RemoteName -> Annex Remote
addRemote a = do
name <- a
remotesChanged
maybe (error "failed to add remote") return
maybe (giveup "failed to add remote") return
=<< Remote.byName (Just name)
{- Inits a rsync special remote, and returns its name. -}
@ -94,7 +94,7 @@ initSpecialRemote name remotetype mcreds config = go 0
enableSpecialRemote :: SpecialRemoteMaker
enableSpecialRemote name remotetype mcreds config =
Annex.SpecialRemote.findExisting name >>= \case
[] -> error $ "Cannot find a special remote named " ++ name
[] -> giveup $ "Cannot find a special remote named " ++ name
((u, c, mcu):_) -> setupSpecialRemote' False name remotetype config mcreds (Just u, R.Enable c, c) mcu
setupSpecialRemote :: RemoteName -> RemoteType -> R.RemoteConfig -> Maybe CredPair -> (Maybe UUID, R.SetupStage, R.RemoteConfig) -> Maybe (Annex.SpecialRemote.ConfigFrom UUID) -> Annex RemoteName