f8836306fa
This fixes fsck of a remote that uses chunking displaying (checking remotename) (checking remotename)" for every chunk. Also, some remotes displayed the message, and others did not, with no consistency. It was originally displayed only when accessing remotes that were expensive or might involve a password prompt, I think, but nothing in the API said when to do it so it became an inconsistent mess. Originally I thought fsck should always display it. But it only displays in fsck --from remote, so the user knows the remote is being accessed, so there is no reason to tell them it's accessing it over and over. It was also possible for git-annex move to sometimes display it twice, due to checking if content is present twice. But, the user of move specifies --from/--to, so it does not need to display when it's accessing the remote, as the user expects it to access the remote. git-annex get might display it, but only if the remote also supports hasKeyCheap, which is really only local git remotes, which didn't display it always; and in any case nothing displayed it before hasKeyCheap, which is checked first, so I don't think this needs to display it ever. mirror is like move. And that's all the main places it would have been displayed. This commit was sponsored by Jochen Bartl on Patreon.
363 lines
11 KiB
Haskell
363 lines
11 KiB
Haskell
{- Amazon Glacier remotes.
|
|
-
|
|
- Copyright 2012-2021 Joey Hess <id@joeyh.name>
|
|
-
|
|
- Licensed under the GNU AGPL version 3 or higher.
|
|
-}
|
|
|
|
module Remote.Glacier (remote, jobList, checkSaneGlacierCommand) where
|
|
|
|
import qualified Data.Map as M
|
|
import qualified Data.Text as T
|
|
import qualified Data.ByteString as S
|
|
import qualified Data.ByteString.Lazy as L
|
|
|
|
import Annex.Common
|
|
import Types.Remote
|
|
import qualified Git
|
|
import Config
|
|
import Config.Cost
|
|
import Annex.SpecialRemote.Config
|
|
import Remote.Helper.Special
|
|
import Remote.Helper.ExportImport
|
|
import qualified Remote.Helper.AWS as AWS
|
|
import Creds
|
|
import Utility.Metered
|
|
import Annex.UUID
|
|
import Utility.Env
|
|
import Types.ProposedAccepted
|
|
|
|
type Vault = String
|
|
type Archive = FilePath
|
|
|
|
remote :: RemoteType
|
|
remote = specialRemoteType $ RemoteType
|
|
{ typename = "glacier"
|
|
, enumerate = const (findSpecialRemotes "glacier")
|
|
, generate = gen
|
|
, configParser = mkRemoteConfigParser
|
|
[ optionalStringParser datacenterField
|
|
(FieldDesc "S3 datacenter to use")
|
|
, optionalStringParser vaultField
|
|
(FieldDesc "name to use for vault")
|
|
, optionalStringParser fileprefixField
|
|
(FieldDesc "prefix to add to filenames in the vault")
|
|
, optionalStringParser AWS.s3credsField HiddenField
|
|
]
|
|
, setup = glacierSetup
|
|
, exportSupported = exportUnsupported
|
|
, importSupported = importUnsupported
|
|
, thirdPartyPopulated = False
|
|
}
|
|
|
|
datacenterField :: RemoteConfigField
|
|
datacenterField = Accepted "datacenter"
|
|
|
|
vaultField :: RemoteConfigField
|
|
vaultField = Accepted "vault"
|
|
|
|
fileprefixField :: RemoteConfigField
|
|
fileprefixField = Accepted "fileprefix"
|
|
|
|
gen :: Git.Repo -> UUID -> RemoteConfig -> RemoteGitConfig -> RemoteStateHandle -> Annex (Maybe Remote)
|
|
gen r u rc gc rs = new
|
|
<$> parsedRemoteConfig remote rc
|
|
<*> remoteCost gc veryExpensiveRemoteCost
|
|
where
|
|
new c cst = Just $ specialRemote' specialcfg c
|
|
(store this)
|
|
(retrieve this)
|
|
(remove this)
|
|
(checkKey this)
|
|
this
|
|
where
|
|
this = Remote
|
|
{ uuid = u
|
|
, cost = cst
|
|
, name = Git.repoDescribe r
|
|
, storeKey = storeKeyDummy
|
|
, retrieveKeyFile = retrieveKeyFileDummy
|
|
, retrieveKeyFileCheap = Nothing
|
|
-- glacier-cli does not follow redirects and does
|
|
-- not support file://, as far as we know, but
|
|
-- there's no guarantee that will continue to be
|
|
-- the case, so require verifiable keys.
|
|
, retrievalSecurityPolicy = mkRetrievalVerifiableKeysSecure gc
|
|
, removeKey = removeKeyDummy
|
|
, lockContent = Nothing
|
|
, checkPresent = checkPresentDummy
|
|
, checkPresentCheap = False
|
|
, exportActions = exportUnsupported
|
|
, importActions = importUnsupported
|
|
, whereisKey = Nothing
|
|
, remoteFsck = Nothing
|
|
, repairRepo = Nothing
|
|
, config = c
|
|
, getRepo = return r
|
|
, gitconfig = gc
|
|
, localpath = Nothing
|
|
, readonly = False
|
|
, appendonly = False
|
|
, untrustworthy = False
|
|
, availability = GloballyAvailable
|
|
, remotetype = remote
|
|
, mkUnavailable = return Nothing
|
|
, getInfo = includeCredsInfo c (AWS.creds u) $
|
|
[ ("glacier vault", getVault c) ]
|
|
, claimUrl = Nothing
|
|
, checkUrl = Nothing
|
|
, remoteStateHandle = rs
|
|
}
|
|
specialcfg = (specialRemoteCfg c)
|
|
-- Disabled until jobList gets support for chunks.
|
|
{ chunkConfig = NoChunks
|
|
}
|
|
|
|
glacierSetup :: SetupStage -> Maybe UUID -> Maybe CredPair -> RemoteConfig -> RemoteGitConfig -> Annex (RemoteConfig, UUID)
|
|
glacierSetup ss mu mcreds c gc = do
|
|
u <- maybe (liftIO genUUID) return mu
|
|
glacierSetup' ss u mcreds c gc
|
|
glacierSetup' :: SetupStage -> UUID -> Maybe CredPair -> RemoteConfig -> RemoteGitConfig -> Annex (RemoteConfig, UUID)
|
|
glacierSetup' ss u mcreds c gc = do
|
|
(c', encsetup) <- encryptionSetup (c `M.union` defaults) gc
|
|
pc <- either giveup return . parseRemoteConfig c'
|
|
=<< configParser remote c'
|
|
c'' <- setRemoteCredPair ss encsetup pc gc (AWS.creds u) mcreds
|
|
pc' <- either giveup return . parseRemoteConfig c''
|
|
=<< configParser remote c''
|
|
case ss of
|
|
Init -> genVault pc' gc u
|
|
_ -> return ()
|
|
gitConfigSpecialRemote u c'' [("glacier", "true")]
|
|
return (c'', u)
|
|
where
|
|
remotename = fromJust (lookupName c)
|
|
defvault = remotename ++ "-" ++ fromUUID u
|
|
defaults = M.fromList
|
|
[ (datacenterField, Proposed $ T.unpack $ AWS.defaultRegion AWS.Glacier)
|
|
, (vaultField, Proposed defvault)
|
|
]
|
|
|
|
store :: Remote -> Storer
|
|
store r k b p = do
|
|
checkNonEmpty k
|
|
byteStorer (store' r) k b p
|
|
|
|
checkNonEmpty :: Key -> Annex ()
|
|
checkNonEmpty k
|
|
| fromKey keySize k == Just 0 =
|
|
giveup "Cannot store empty files in Glacier."
|
|
| otherwise = return ()
|
|
|
|
store' :: Remote -> Key -> L.ByteString -> MeterUpdate -> Annex ()
|
|
store' r k b p = go =<< glacierEnv c gc u
|
|
where
|
|
c = config r
|
|
gc = gitconfig r
|
|
u = uuid r
|
|
params = glacierParams c
|
|
[ Param "archive"
|
|
, Param "upload"
|
|
, Param "--name", Param $ archive r k
|
|
, Param $ getVault $ config r
|
|
, Param "-"
|
|
]
|
|
go Nothing = giveup "Glacier not usable."
|
|
go (Just e) =
|
|
let cmd = (proc "glacier" (toCommand params)) { env = Just e }
|
|
{ std_in = CreatePipe }
|
|
in liftIO $ withCreateProcess cmd (go' cmd)
|
|
go' cmd (Just hin) _ _ pid = do
|
|
meteredWrite p (S.hPut hin) b
|
|
hClose hin
|
|
forceSuccessProcess cmd pid
|
|
go' _ _ _ _ _ = error "internal"
|
|
|
|
retrieve :: Remote -> Retriever
|
|
retrieve = byteRetriever . retrieve'
|
|
|
|
retrieve' :: Remote -> Key -> (L.ByteString -> Annex ()) -> Annex ()
|
|
retrieve' r k sink = go =<< glacierEnv c gc u
|
|
where
|
|
c = config r
|
|
gc = gitconfig r
|
|
u = uuid r
|
|
params = glacierParams c
|
|
[ Param "archive"
|
|
, Param "retrieve"
|
|
, Param "-o-"
|
|
, Param $ getVault $ config r
|
|
, Param $ archive r k
|
|
]
|
|
go Nothing = giveup "cannot retrieve from glacier"
|
|
go (Just environ) = do
|
|
let p = (proc "glacier" (toCommand params))
|
|
{ env = Just environ
|
|
, std_out = CreatePipe
|
|
}
|
|
bracketIO (createProcess p) cleanupProcess (go' p)
|
|
go' p (_, Just h, _, pid) = do
|
|
let cleanup = liftIO $ do
|
|
hClose h
|
|
forceSuccessProcess p pid
|
|
flip finally cleanup $ do
|
|
-- Glacier cannot store empty files, so if
|
|
-- the output is empty, the content is not
|
|
-- available yet.
|
|
whenM (liftIO $ hIsEOF h) $
|
|
giveup "Content is not available from glacier yet. Recommend you wait up to 4 hours, and then run this command again."
|
|
sink =<< liftIO (L.hGetContents h)
|
|
go' _ _ = error "internal"
|
|
|
|
remove :: Remote -> Remover
|
|
remove r k = unlessM go $
|
|
giveup "removal from glacier failed"
|
|
where
|
|
go = glacierAction r
|
|
[ Param "archive"
|
|
, Param "delete"
|
|
, Param $ getVault $ config r
|
|
, Param $ archive r k
|
|
]
|
|
|
|
checkKey :: Remote -> CheckPresent
|
|
checkKey r k = go =<< glacierEnv (config r) (gitconfig r) (uuid r)
|
|
where
|
|
go Nothing = giveup "cannot check glacier"
|
|
go (Just e) = do
|
|
{- glacier checkpresent outputs the archive name to stdout if
|
|
- it's present. -}
|
|
s <- liftIO $ readProcessEnv "glacier" (toCommand params) (Just e)
|
|
let probablypresent = serializeKey k `elem` lines s
|
|
if probablypresent
|
|
then giveup untrusted
|
|
else return False
|
|
|
|
params = glacierParams (config r)
|
|
[ Param "archive"
|
|
, Param "checkpresent"
|
|
, Param $ getVault $ config r
|
|
, Param "--quiet"
|
|
, Param $ archive r k
|
|
]
|
|
|
|
untrusted = unlines
|
|
[ "Glacier's inventory says it has a copy."
|
|
, "However, the inventory could be out of date, if it was recently removed."
|
|
]
|
|
|
|
glacierAction :: Remote -> [CommandParam] -> Annex Bool
|
|
glacierAction r = runGlacier (config r) (gitconfig r) (uuid r)
|
|
|
|
runGlacier :: ParsedRemoteConfig -> RemoteGitConfig -> UUID -> [CommandParam] -> Annex Bool
|
|
runGlacier c gc u params = go =<< glacierEnv c gc u
|
|
where
|
|
go Nothing = return False
|
|
go (Just e) = liftIO $
|
|
boolSystemEnv "glacier" (glacierParams c params) (Just e)
|
|
|
|
glacierParams :: ParsedRemoteConfig -> [CommandParam] -> [CommandParam]
|
|
glacierParams c params = datacenter:params
|
|
where
|
|
datacenter = Param $ "--region=" ++
|
|
fromMaybe (giveup "Missing datacenter configuration")
|
|
(getRemoteConfigValue datacenterField c)
|
|
|
|
glacierEnv :: ParsedRemoteConfig -> RemoteGitConfig -> UUID -> Annex (Maybe [(String, String)])
|
|
glacierEnv c gc u = do
|
|
liftIO checkSaneGlacierCommand
|
|
go =<< getRemoteCredPairFor "glacier" c gc creds
|
|
where
|
|
go Nothing = return Nothing
|
|
go (Just (user, pass)) = do
|
|
e <- liftIO getEnvironment
|
|
return $ Just $ addEntries [(uk, user), (pk, pass)] e
|
|
|
|
creds = AWS.creds u
|
|
(uk, pk) = credPairEnvironment creds
|
|
|
|
getVault :: ParsedRemoteConfig -> Vault
|
|
getVault = fromMaybe (giveup "Missing vault configuration")
|
|
. getRemoteConfigValue vaultField
|
|
|
|
archive :: Remote -> Key -> Archive
|
|
archive r k = fileprefix ++ serializeKey k
|
|
where
|
|
fileprefix = fromMaybe "" $
|
|
getRemoteConfigValue fileprefixField $ config r
|
|
|
|
genVault :: ParsedRemoteConfig -> RemoteGitConfig -> UUID -> Annex ()
|
|
genVault c gc u = unlessM (runGlacier c gc u params) $
|
|
giveup "Failed creating glacier vault."
|
|
where
|
|
params =
|
|
[ Param "vault"
|
|
, Param "create"
|
|
, Param $ getVault c
|
|
]
|
|
|
|
{- Partitions the input list of keys into ones which have
|
|
- glacier retieval jobs that have succeeded, or failed.
|
|
-
|
|
- A complication is that `glacier job list` will display the encrypted
|
|
- keys when the remote is encrypted.
|
|
-
|
|
- Dealing with encrypted chunked keys would be tricky. However, there
|
|
- seems to be no benefit to using chunking with glacier, so chunking is
|
|
- not supported.
|
|
-}
|
|
jobList :: Remote -> [Key] -> Annex ([Key], [Key])
|
|
jobList r keys = go =<< glacierEnv (config r) (gitconfig r) (uuid r)
|
|
where
|
|
params = [ Param "job", Param "list" ]
|
|
nada = ([], [])
|
|
myvault = getVault $ config r
|
|
|
|
go Nothing = return nada
|
|
go (Just e) = do
|
|
v <- liftIO $ catchMaybeIO $
|
|
readProcessEnv "glacier" (toCommand params) (Just e)
|
|
maybe (return nada) extract v
|
|
|
|
extract s = do
|
|
let result@(succeeded, failed) =
|
|
parse nada $ (map words . lines) s
|
|
if result == nada
|
|
then return nada
|
|
else do
|
|
enckeys <- forM keys $ \k ->
|
|
maybe k (\(_, enck) -> enck k)
|
|
<$> cipherKey (config r) (gitconfig r)
|
|
let keymap = M.fromList $ zip enckeys keys
|
|
let convert = mapMaybe (`M.lookup` keymap)
|
|
return (convert succeeded, convert failed)
|
|
|
|
parse c [] = c
|
|
parse c@(succeeded, failed) ((status:_date:vault:key:[]):rest)
|
|
| vault == myvault =
|
|
case deserializeKey key of
|
|
Nothing -> parse c rest
|
|
Just k
|
|
| "a/d" `isPrefixOf` status ->
|
|
parse (k:succeeded, failed) rest
|
|
| "a/e" `isPrefixOf` status ->
|
|
parse (succeeded, k:failed) rest
|
|
| otherwise ->
|
|
parse c rest
|
|
parse c (_:rest) = parse c rest
|
|
|
|
-- boto's version of glacier exits 0 when given a parameter it doesn't
|
|
-- understand. See https://github.com/boto/boto/issues/2942
|
|
checkSaneGlacierCommand :: IO ()
|
|
checkSaneGlacierCommand =
|
|
whenM ((Nothing /=) <$> catchMaybeIO shouldfail) $
|
|
giveup wrongcmd
|
|
where
|
|
test = proc "glacier" ["--compatibility-test-git-annex"]
|
|
shouldfail = withNullHandle $ \nullh ->
|
|
let p = test
|
|
{ std_out = UseHandle nullh
|
|
, std_err = UseHandle nullh
|
|
}
|
|
in withCreateProcess p $ \_ _ _ -> forceSuccessProcess p
|
|
wrongcmd = "The glacier program in PATH seems to be from boto, not glacier-cli. Cannot use this program."
|