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|
{-# LANGUAGE CPP #-}
{-# LANGUAGE OverloadedStrings #-}
module Kiki
( module Kiki
, setVerifyFlag
) where
import Control.Applicative
import Control.Exception
import Control.Monad
import Data.ASN1.BinaryEncoding
import Data.ASN1.Encoding
import Data.ASN1.Types
import Data.Binary
import Data.Bool
import Data.Char
import Data.Functor
import Data.List
import Data.Maybe
import Data.OpenPGP
import Data.OpenPGP.Util
import Data.Ord
import qualified Data.Traversable as T (mapM)
import System.Directory
import System.FilePath.Posix as FilePath
import System.IO
import System.IO.Error
import System.IO.Temp
import System.Posix.Files
import System.Posix.Types (FileMode)
import System.Posix.IO as Posix (createPipe)
import System.Posix.User
#if defined(VERSION_memory)
import Data.ByteArray.Encoding
import qualified Data.ByteString.Char8 as S8
#elif defined(VERSION_dataenc)
import qualified Codec.Binary.Base64 as Base64
#endif
import qualified Data.ByteString.Lazy as L
import qualified Data.ByteString.Lazy.Char8 as Char8
import qualified Data.Map.Strict as Map
import Network.Socket
import ProcessUtils
import qualified SSHKey as SSH
import CommandLine
import DotLock
import GnuPGAgent (Query (..))
import KeyRing hiding (pemFromPacket)
withAgent :: [PassphraseSpec] -> [PassphraseSpec]
withAgent [] = [PassphraseAgent]
withAgent ps = ps
ciphername :: SymmetricAlgorithm -> String
ciphername Unencrypted = "-"
ciphername TripleDES = "3des"
ciphername (SymmetricAlgorithm w8) = "cipher-"++show w8
ciphername c = map toLower $ show c
cipherFromString :: String -> SymmetricAlgorithm
cipherFromString "clear" = Unencrypted
cipherFromString "unencrypted" = Unencrypted
cipherFromString s =
case filter ( (== s) . ciphername) ciphers of
x:_ -> x
-- _ | all isHexDigit s -> unhex s
_ -> error $ "known ciphers: "++unwords (map ciphername ciphers)
{-
where
#if defined(VERSION_memory)
unhex hx = case convertFromBase Base16 (S8.pack hx) of
Left e -> do
-- Useful for debugging but insecure generally ;)
-- putStrLn $ "convertFromBase error for input "++show hx++": "++show e
return Nothing
Right bs -> return $ Just $ S8.unpack bs
#elif defined(VERSION_dataenc)
unhex hx = maybe (return () {- putStrLn $ "dataenc error for input "++show hx -})
return
$ fmap (map $ chr . fromIntegral) $ Base16.decode hx
#endif
-}
ciphers :: [SymmetricAlgorithm]
ciphers = takeWhile notFallback $ map toEnum $ [0..4]++[7..]
where
notFallback (SymmetricAlgorithm _) = False
notFallback _ = True
-- |
-- Regenerate /var/cache/kiki
refresh :: (FilePath -> FilePath) -> CommonArgsParsed -> IO ()
refresh root homepass = do
let homepass' = homepass { cap_homespec = fmap root (cap_homespec homepass) }
KikiResult r report <- runKeyRing $ minimalOp homepass'
let mroot = case root "" of
"/" -> Nothing
"" -> Nothing
pth -> Just pth
case r of
KikiSuccess rt -> refreshCache rt mroot
_ -> return () -- XXX: silent fail?
data CommonArgsParsed = CommonArgsParsed { cap_homespec :: Maybe String, cap_passfd :: Maybe InputFile }
streaminfo :: StreamInfo
streaminfo = StreamInfo
{ fill = KF_None
, spill = KF_None
, typ = KeyRingFile
, initializer = NoCreate
, access = AutoAccess
, transforms = []
}
minimalOp :: CommonArgsParsed -> KeyRingOperation
minimalOp cap = op
where
streaminfo = StreamInfo { fill = KF_None
, typ = KeyRingFile
, spill = KF_All
, initializer = NoCreate
, access = AutoAccess
, transforms = []
}
op = KeyRingOperation
{ opFiles = Map.fromList $
[ ( HomeSec, streaminfo { access = Sec })
, ( HomePub, streaminfo { access = Pub })
]
, opPassphrases = withAgent $ do pfile <- maybeToList (cap_passfd cap)
return $ PassphraseSpec Nothing Nothing pfile
, opTransforms = []
, opHome = cap_homespec cap
}
run :: [String] -> Args (IO ()) -> IO ()
run args x =
case runArgs (parseInvocation (uncurry fancy kikiOptions "") args) x of
Left e -> hPutStrLn stderr $ usageErrorMessage e
Right io -> io
outputReport :: [(FilePath, KikiReportAction)] -> IO ()
outputReport report = do
forM_ report $ \(fname,act) -> do
putStrLn $ fname ++ ": " ++ reportString act
spawn :: CommonArgsParsed -> SymmetricAlgorithm -> FilePath -> IO ()
spawn cmn cipher path = do
putStrLn "TODO: implement keygen.sh replacement.sh"
mkdirFor :: FilePath -> IO ()
mkdirFor path = do
let dir = takeDirectory path
createDirectoryIfMissing True dir
-- | Useful default KeyRingFile StreamInfo.
strm :: StreamInfo
strm = StreamInfo
{ typ = KeyRingFile
, fill = KF_None
, spill = KF_All
, access = AutoAccess
, initializer = NoCreate
, transforms = []
}
-- | Convenience constructor for StreamInfo
buildStreamInfo :: KeyFilter -> FileType -> StreamInfo
buildStreamInfo rtyp ftyp = strm { typ = ftyp , fill = rtyp }
-- | Convenience constuctor for Streaminfo generating a tagged subkey.
peminfo :: Int -- ^ bits
-> String -- ^ subkey tag.
-> StreamInfo
peminfo bits usage = StreamInfo
{ typ = PEMFile
, fill = KF_None -- KF_Match usage
, spill = KF_Match usage
, access = Sec
, initializer = Internal (GenRSA $ bits `div` 8)
, transforms = []
}
importAndRefresh :: (FilePath -> FilePath) -> CommonArgsParsed -> SymmetricAlgorithm -> IO ()
importAndRefresh root cmn cipher = do
let rootdir = do guard (root "x" /= "x")
Just $ root ""
me <- getEffectiveUserID
let noChrootArg = rootdir == Nothing
bUnprivileged = (me/=0) && noChrootArg
bool id (error "--chroot requires an argument") (rootdir==Just "") $ do
let homespec = mplus (slash <$> rootdir <*> cap_homespec cmn)
(fmap (++"/root/.gnupg") rootdir)
passfd = cap_passfd cmn
(home,secring,pubring,mbwk) <- unconditionally $ getHomeDir homespec
osHomeDir <- if bUnprivileged then getHomeDirectory else return "/root"
old_umask <- setFileCreationMask 0o077 -- Keyring files need to be created with proper mask.
gotsec <- doesFileExist secring
(torgen,pwds) <- bool id (const $ return (Generate 0 $ GenRSA $ 1024 `div` 8, [])) gotsec $ do
-- We have no secring.gpg (and thus no master key).
-- Since 'runKeyRing' cannot currently cope with this situation, we will
-- generate a master-key and very minimal secring.gpg file.
master_un <- generateKey (GenRSA $ 4096 `div` 8 )
<&> \k -> MappedPacket (k { is_subkey = False }) -- Set as master-key.
Map.empty -- Packet occurs in no files.
-- The user may desire the master key is encrypted on disk but this
-- requires a password prompt. In order to have a decent prompt, it'd
-- be nice if we could display the .onion hostname for the key.
-- Therefore, we generate the tor key early.
tor_un <- generateKey (GenRSA $ 1024 `div` 8 )
-- However, we'll postpone writing the tor key to the keyring and
-- instead have the later all-in-one call to runKeyRing take care of
-- it. That interface does not currently provide a way to accept
-- in-memory input, so we'll create a fifo stream for it to read the
-- key in PEM format.
(read_tor,write_tor) <- Posix.createPipe
rs <- writeKeyToFile (streaminfo { typ = PEMFile
, access = Sec
, spill = KF_Match "tor"
, fill = KF_All })
(FileDesc write_tor)
tor_un
-- -- Currently disabled: show warnings and errors from the PEM generation.
-- outputReport $ map (first show) rs
let ctx = InputFileContext secring pubring
-- Here we encrypt the master-key if neccessary. If no --passphrase-fd option
-- was used, the user will receive prompts from gpg-agent.
(master0,transcoder) <- do
let main_passwds = withAgent $ do pfd <- maybeToList passfd
return $ PassphraseSpec Nothing Nothing pfd
uidentry = Map.singleton (keykey $ packet master_un)
$ master_un { packet = Query (packet master_un)
(torUIDFromKey tor_un)
Nothing }
cipher's2k <- do
IteratedSaltedS2K _ salt _ <- randomS2K SHA1
return $ (cipher {- AES128 -}, IteratedSaltedS2K SHA1 salt (15 * 2^19))
transcoder <- makeMemoizingDecrypter main_passwds ctx (Just master_un, uidentry)
master <- transcoder cipher's2k master_un
return (master,transcoder)
-- Finally, we write-out the secring.gpg file.
case master0 of
KikiSuccess master -> do
mkdirFor secring
writeInputFileL ctx
HomeSec
$ encode $ Message [master]
putStrLn "Wrote master key"
return (FileDesc read_tor, [PassphraseMemoizer transcoder])
er -> do
hPutStrLn stderr ("warning: " ++ errorString er)
hPutStrLn stderr "warning: keys will not be encrypted.";
mkdirFor secring
writeInputFileL ctx
HomeSec
$ encode $ Message [packet master_un]
putStrLn "Wrote master key"
return (FileDesc read_tor, [])
-- If the public ring does not exist, then creating an empty file is
-- sufficient to satisfy 'runKeyRing'. However, as we've already generated
-- a key above, GnuPG will not like the unsynced state we are leaving these
-- files. It's important at this point that, 'runKeyRing' actually occurs
-- to fix things up.
gotpub <- doesFileExist pubring
when (not gotpub) $ do
mkdirFor pubring
writeInputFileL (InputFileContext secring pubring)
HomePub
( encode $ Message [] )
setFileCreationMask old_umask -- We're done creating keyring files, so restore umask.
let sshcpath = fromMaybe "" rootdir ++ osHomeDir ++ ".ssh/id_rsa"
sshspath = fromMaybe "" rootdir ++ "/etc/ssh/ssh_host_rsa_key"
op =
KeyRingOperation
{ opFiles =
Map.fromList $
[ ( HomeSec, buildStreamInfo KF_All KeyRingFile )
, ( HomePub, (buildStreamInfo KF_All KeyRingFile) { access = Pub } )
, ( torgen , case torgen of
FileDesc _ -> StreamInfo { typ = PEMFile
, fill = KF_Match "tor"
, spill = KF_Match "tor"
, access = Sec
, initializer = NoCreate
, transforms = [] }
_ -> strm { spill = KF_Match "tor" })
, ( Generate 1 (GenRSA (2048 `div` 8)), strm { spill = KF_Match "ipsec" })
, ( ArgFile sshcpath, (peminfo 2048 "ssh-client") )
, ( ArgFile sshspath, (peminfo 2048 "ssh-server") )
, ( Generate 2 (GenRSA (4096 `div` 8)), strm { spill = KF_Match "encrypt" })
, ( Generate 3 (GenRSA (4096 `div` 8)), strm { spill = KF_Match "sign" })
]
, opPassphrases = withAgent $ pwds ++ do pfd <- maybeToList passfd
return $ PassphraseSpec Nothing Nothing pfd
, opHome = homespec
, opTransforms = []
}
nop =
KeyRingOperation
{ opFiles = Map.fromList -- It's too late for a true no-op,
-- so we'll sync the keyrings at least.
[ ( HomeSec, buildStreamInfo KF_All KeyRingFile )
, ( HomePub, (buildStreamInfo KF_All KeyRingFile) { access = Pub } )
]
, opPassphrases = withAgent $ do pfd <- maybeToList passfd
return $ PassphraseSpec Nothing Nothing pfd
, opHome=homespec, opTransforms = []
}
-- Run the all-in-one operation that generates or imports all subkeys.
KikiResult rt report <- runKeyRing (if bUnprivileged then nop else op)
outputReport report
rt <- case rt of
BadPassphrase ->
error "Operation requires correct passphrase. (Hint: Use --passphrase-fd=0 to input it on stdin.)"
_ -> unconditionally $ return rt
-- Finally, we update /var/cache/kiki.
when (not bUnprivileged) $ refreshCache rt rootdir
-- Installs the cert file for the peer to the filesystem, and returns an
-- ipsec.conf snippet configuring the peer and referencing the installed cert
-- file.
installIpsecPeerCertificate
:: (FilePath -> FilePath)
-> (L.ByteString, SockAddr, KeyData)
-> IO Char8.ByteString
installIpsecPeerCertificate mkpath (contactname,addr,kd) =
Char8.concat <$> do
forM (take 1 ipsecs) $ \k -> do
flip (either warn') (pemFromPacket k :: Either String String) $ \pem -> do
case sshs of
(sshkey:_) -> do
theirHostname <- sshKeyToHostname sshkey
write (mkpath $ ipsecCertPath theirHostname) pem
return $ strongswanPeerConfiguration addr contactname theirHostname
_ -> error "fuck."
where
warn' x = warn x >> return Char8.empty
their_master = packet $ keyMappedPacket kd :: Packet
-- We find all cross-certified ipsec keys for the given cross-certified onion name.
ipsecs :: [Packet]
ipsecs = sortOn (Down . timestamp)
$ getSubkeys CrossSigned their_master (keySubKeys kd) "ipsec"
-- ++ getSubkeys CrossSigned their_master (keySubKeys kd) "strongswan"
sshs :: [Packet]
sshs = sortOn (Down . timestamp)
$ getSubkeys CrossSigned their_master (keySubKeys kd) "ssh-server"
ipsecPath :: String -> Char8.ByteString -> String
ipsecPath theDirName theBaseName = "ipsec.d/" ++ theDirName ++ "/" ++ Char8.unpack theBaseName ++ ".pem"
ipsecKeyPath :: Char8.ByteString -> FilePath
ipsecKeyPath = ipsecPath "private"
ipsecCertPath :: Char8.ByteString -> FilePath
ipsecCertPath = ipsecPath "certs"
write' :: (FilePath -> t -> IO b) -> FilePath -> t -> IO b
write' wr f bs = do
createDirectoryIfMissing True $ takeDirectory f
wr f bs
write :: FilePath -> String -> IO ()
write = write' writeFile
writeL :: FilePath -> Char8.ByteString -> IO ()
writeL = write' L.writeFile
writeL077 :: FilePath -> Char8.ByteString -> IO FileMode
writeL077 f bs = do
old_umask <- setFileCreationMask 0o077
writeL f bs
setFileCreationMask old_umask
getMkPathAndCommit :: FilePath -> IO (FilePath -> FilePath, IO ())
getMkPathAndCommit destdir = do
let cachedir = takeDirectory destdir
unslash ('/':xs) = xs
unslash xs = xs
timeout = -1 -- TODO: set milisecond timeout on dotlock
createDirectoryIfMissing True cachedir
tmpdir <- createTempDirectory cachedir (takeBaseName destdir ++ ".")
createSymbolicLink (makeRelative cachedir tmpdir) (tmpdir ++ ".link")
lock <- dotlock_create destdir 0
T.mapM (flip dotlock_take timeout) lock
let mkpath pth = tmpdir </> unslash (makeRelative destdir pth)
commit = do
oldcommit <- (Just <$> readSymbolicLink destdir)
`catch` \e -> do
when (not $ isDoesNotExistError e) $ warn (show e)
return Nothing
-- Note: Files not written to are considered deleted,
-- otherwise call readyReadBeforeWrite on them.
rename (tmpdir ++ ".link") destdir
er <- T.mapM dotlock_release lock
void $ T.mapM removeDirectoryRecursive (FilePath.combine cachedir <$> oldcommit)
-- Present transaction is Write only (or Write-Before-Read) which is fine.
-- If ever Read-Before-Write is required, uncomment and use:
-- let readyReadBeforeWrite pth = do
-- let copyIt = do
-- createDirectoryIfMissing True (takeDirectory (mkpath pth))
-- copyFile (destdir </> unslash (makeRelative destdir pth) (mkpath pth)
-- doesFileExist (mkpath pth) >>= flip when copyIt
-- return (mkpath pth)
return (mkpath, commit {-, readyReadBeforeWrite -})
generateHostsFile :: (FilePath -> FilePath) -> KeyRingRuntime -> IO ()
generateHostsFile mkpath rt = do
let hostspath = mkpath "hosts"
op = KeyRingOperation
{ opFiles = Map.fromList $
[ ( HomePub, streaminfo { typ=KeyRingFile, spill=KF_All, access=Pub } )
, ( ArgFile hostspath, streaminfo { typ=Hosts, spill=KF_None, fill=KF_All, access=Pub } )
]
, opPassphrases = []
, opHome = Just $ takeDirectory (rtPubring rt)
, opTransforms = []
}
KikiResult _ report <- runKeyRing op
outputReport report
names :: KeyRingRuntime -> Maybe (SockAddr, ([Char8.ByteString], [Char8.ByteString]))
names rt = do wk <- rtWorkingKey rt
-- XXX unnecessary signature check
return $ getHostnames (rtKeyDB rt Map.! keykey wk)
getssh :: (Char8.ByteString, SockAddr, KeyData) -> Char8.ByteString
getssh (contactname,_addr,kd) = do
let their_master = packet $ keyMappedPacket kd
sshs :: [Packet]
sshs = sortOn (Down . timestamp)
$ getSubkeys CrossSigned their_master (keySubKeys kd) "ssh-server"
blobs = mapMaybe sshblobFromPacketL sshs
taggedblobs = map (\b -> contactname <> " " <> b) blobs
Char8.unlines taggedblobs
installIpsecConf :: (FilePath -> FilePath) -> SockAddr -> Char8.ByteString -> [(Char8.ByteString, SockAddr, KeyData)] -> IO ()
installIpsecConf mkpath wkaddr (certBasename) cs = do
snippets <- mapM (installIpsecPeerCertificate mkpath) cs
writeL (mkpath "ipsec.conf") . Char8.unlines
$ [ "conn %default"
, " ikelifetime=60m"
, " keylife=20m"
, " rekeymargin=3m"
, " keyingtries=%forever"
, " keyexchange=ikev2"
, " dpddelay=10s"
, " dpdaction=restart"
, " left=%defaultroute"
, " leftsubnet=" <> Char8.pack (showA wkaddr) <> "/128"
, " leftauth=pubkey"
, " leftid=" <> Char8.pack (showA wkaddr)
, " leftrsasigkey=" <> certBasename
, " leftikeport=4500"
, " rightikeport=4500"
, " right=%any"
, " rightauth=pubkey"
, " type=tunnel"
, " auto=route"
, ""
] ++ filter (not . Char8.null) snippets
refreshCache :: KeyRingRuntime -> Maybe FilePath -> IO ()
refreshCache rt rootdir = do
(mkpath, commit) <- getMkPathAndCommit (fromMaybe "" rootdir ++ "/var/cache/kiki/config")
generateHostsFile mkpath rt
fromMaybe (error "No working key.") $ do
(wkaddr,(onames,_)) <- names rt
Just $ do
let oname = Char8.concat $ take 1 onames
bUnprivileged = False -- TODO
if (oname == "") && (not bUnprivileged) then error "Missing tor key" else do
-- sshcpathpub0 = fromMaybe "" rootdir ++ osHomeDir </> ".ssh" </> "id_rsa.pub"
-- sshspathpub0 = fromMaybe "" rootdir ++ "/etc/ssh/ssh_host_rsa_key.pub"
-- contactipsec0 = fromMaybe "" rootdir ++ "/etc/ipsec.d/certs/%(onion).pem"
flip (maybe $ warn "missing working key?") (rtWorkingKey rt) $ \wk -> do
let grip = fingerprint wk
exportOp = passphrases <> pemSecrets <> minimalOp (CommonArgsParsed (Just $ takeDirectory $ rtPubring rt) Nothing)
where
passphrases = mempty { opPassphrases = [PassphraseMemoizer (rtPassphrases rt)] }
pemSecrets = mempty { opFiles = Map.fromList
[ send "ipsec" (mkpath $ ipsecKeyPath oname) "missing ipsec key?"
, send "ssh-client" (mkpath "root/.ssh/id_rsa") "missing ssh-client key?"
, send "ssh-server" (mkpath "ssh_host_rsa_key") "missing ssh host key?"
, send "tor" (mkpath "tor/private_key") "missing tor key?"
]
}
send usage path warning =
( ArgFile path, StreamInfo { typ = PEMFile
, fill = KF_Match usage
, spill = KF_None
, access = Sec
, initializer = WarnMissing warning
, transforms = []
})
KikiResult rt' report <- runKeyRing exportOp
outputReport report
-- outputReport $ map (first $ resolveForReport ctx) $ filter ((/=ExportedSubkey) . snd) report
rt'' <- rethrowKikiErrors rt'
writePublicKeyFiles rt'' mkpath grip oname wkaddr commit
rethrowKikiErrors :: KikiCondition a -> IO a
rethrowKikiErrors BadPassphrase =
error "Operation requires correct passphrase. (Hint: Use --passphrase-fd=0 to input it on stdin.)"
rethrowKikiErrors rt = unconditionally $ return rt
writePublicKeyFiles :: KeyRingRuntime -> (FilePath -> FilePath) -> String -> Char8.ByteString -> SockAddr -> IO () -> IO ()
writePublicKeyFiles rt mkpath grip oname wkaddr commit = do
-- Finally, export public keys if they do not exist.
either warn (write $ mkpath "root/.ssh/id_rsa.pub") $ show_ssh' "ssh-client" grip (rtKeyDB rt)
either warn (write $ mkpath "ssh_host_rsa_key.pub") $ show_ssh' "ssh-server" grip (rtKeyDB rt)
either warn (write $ mkpath $ ipsecCertPath oname) $ show_pem' "ipsec" grip (rtKeyDB rt) pemFromPacket
let onionkeys = mapMaybe namedContact $ Map.elems $ rtKeyDB rt
cs = filter (\(_,_,kd) -> notme kd) onionkeys
kk = keykey (fromJust $ rtWorkingKey rt)
notme kd = keykey (keyPacket kd) /= kk
namedContact kd = do
-- The getHostnames command requires a valid cross-signed tor key
-- for each onion name returned in (_,(ns,_)).
let (addr,(ns,_)) = getHostnames kd
fmap (\n -> (n,addr, kd)) $ listToMaybe ns -- only first onion name.
known_hosts = L.concat $ map getssh onionkeys
writeL (mkpath "ssh_known_hosts") known_hosts
installIpsecConf mkpath wkaddr (Char8.pack $ takeBaseName $ ipsecCertPath oname) cs
commit
sshKeyToHostname :: Packet -> IO Char8.ByteString
sshKeyToHostname sshkey = do
(_, (sout, _serr)) <- runExternal shellScript (Just $ sshblobFromPacket sshkey)
return $ Char8.fromChunks [sout]
where
shellScript =
"f=$(mktemp) && cat > \"$f\" && ssh-keygen -r _ -f \"$f\" |" ++
" (read _ _ _ _ _ hash _ && echo -n $hash.ssh.cryptonomic.net); r=$?; rm -f \"$f\"; exit $r"
strongswanPeerConfiguration :: SockAddr -> Char8.ByteString -> Char8.ByteString -> Char8.ByteString
strongswanPeerConfiguration addr oname rightip = Char8.unlines
[ "conn " <> oname
, " right=" <> rightip
, " rightsubnet=" <> p (showA addr) <> "/128"
, " rightauth=pubkey"
, " rightid=" <> p (showA addr)
, " rightrsasigkey=" <> oname <> ".pem"
]
where p = Char8.pack
-- conn hiotuxliwisbp6mi.onion
-- right=%hiotuxliwisbp6mi.onion.ipv4
-- rightsubnet=fdcc:76c8:cb34:74e6:2aa3:cb39:abc8:d403/128
-- rightauth=pubkey
-- rightid=fdcc:76c8:cb34:74e6:2aa3:cb39:abc8:d403
-- rightrsasigkey=hiotuxliwisbp6mi.onion.pem
showA :: SockAddr -> String
showA addr = if null bracket then pre else drop 1 pre
where (pre,bracket) = break (==']') (show addr)
#if !MIN_VERSION_base(4,8,0)
sortOn :: Ord b => (a -> b) -> [a] -> [a]
sortOn f =
map snd . sortBy (comparing fst) . map (\x -> let y = f x in y `seq` (y, x))
#endif
pemFromPacket :: Monad m => Packet -> m String
pemFromPacket k = do
let rsa = pkcs8 . fromJust $ rsaKeyFromPacket k
der = encodeASN1 DER (toASN1 rsa [])
#if defined(VERSION_memory)
qq = S8.unpack $ convertToBase Base64 (L.toStrict der)
#elif defined(VERSION_dataenc)
qq = Base64.encode (L.unpack der)
#endif
return $
writePEM PemPublicKey qq -- ("TODO "++show keyspec)
show_pem :: String -> String -> KeyDB -> IO ()
show_pem keyspec wkgrip db = either warn putStrLn $ show_pem' keyspec wkgrip db pemFromPacket
show_pem' :: String -> String -> KeyDB -> (Packet -> Either String b) -> Either String b
show_pem' keyspec wkgrip db keyfmt = do
let s = parseSpec wkgrip keyspec
flip (maybe . Left $ keyspec ++ ": not found")
(selectPublicKey s db)
keyfmt
warn :: String -> IO ()
warn str = hPutStrLn stderr str
show_ssh :: String -> String -> KeyDB -> IO ()
show_ssh keyspec wkgrip db = either warn putStrLn $ show_ssh' keyspec wkgrip db
show_ssh' :: String -> String -> KeyDB -> Either String String
show_ssh' keyspec wkgrip db = do
let s = parseSpec wkgrip keyspec
flip (maybe . Left $ keyspec ++ ": not found")
(selectPublicKey s db)
$ return . sshblobFromPacket
-- |
-- interpolate %var patterns in a string.
interp :: Map.Map String String -> String -> String
interp vars raw = es >>= interp1
where
gs = groupBy (\_ c -> c/='%') raw
es = dropWhile null $ gobbleEscapes ("":gs)
where gobbleEscapes :: [String] -> [String]
gobbleEscapes (a:"%":b:bs) = (a++b) : gobbleEscapes bs
gobbleEscapes (g:gs) = g : gobbleEscapes gs
gobbleEscapes [] = []
interp1 ('%':'(':str) = fromMaybe "" (Map.lookup key vars) ++ drop 1 rest
where (key,rest) = break (==')') str
interp1 plain = plain
sshblobFromPacket :: Packet -> String
sshblobFromPacket k = Char8.unpack $ fromJust $ sshblobFromPacketL k
sshblobFromPacketL :: Packet -> Maybe Char8.ByteString
sshblobFromPacketL k = do
RSAKey (MPI n) (MPI e) <- rsaKeyFromPacket k
return $ SSH.keyblob (n,e)
{-
replaceSshServerKeys root cmn = do
let homepass' = cmn { cap_homespec = fmap root (cap_homespec cmn) }
replaceSSH op = op { opFiles = files }
where
files = Map.adjust delssh HomeSec
$ Map.adjust delssh HomePub
$ Map.insert (ArgFile $ root "/etc/ssh/ssh_host_rsa_key") strm $ opFiles op
strm = streaminfo { typ = PEMFile, spill = KF_Match "ssh-server", access = Sec }
delssh strm = strm { transforms = DeleteSubkeyByUsage "ssh-server" : transforms strm
, fill = KF_All }
KikiResult r report <- runKeyRing $ minimalOp homepass'
case r of
KikiSuccess rt -> Kiki.refreshCache rt $ case root "" of
"/" -> Nothing
"" -> Nothing
pth -> Just pth
err -> hPutStrLn stderr $ errorString err
-}
slash :: String -> String -> String
slash "/" ('/':xs) = '/':xs
slash "" ('/':xs) = '/':xs
slash "" xs = '/':xs
slash (y:ys) xs = y:slash ys xs
dashdashChroot :: Args (FilePath -> FilePath)
dashdashChroot = pure (\r a -> slash r a) <*> arg "--chroot" <|> pure id
dashdashHomedir :: Args CommonArgsParsed
dashdashHomedir = CommonArgsParsed
<$> optional (arg "--homedir")
<*> optional (FileDesc <$> read <$> arg "--passphrase-fd")
dashdashCipher :: Args SymmetricAlgorithm
dashdashCipher = fromMaybe CAST5 <$> optional (cipherFromString <$> arg "--cipher")
kikiOptions :: ( [(String,Int)], [String] )
kikiOptions = ( ss, ps )
where
ss = [("--chroot",1),("--passphrase-fd",1),("--homedir",1),("--cipher",1)]
ps = []
|