module XMonad.Prompt.Ssh
(
sshPrompt,
Ssh,
) where
import XMonad
import XMonad.Prelude
import XMonad.Util.Run
import XMonad.Prompt
import System.Directory
import System.Environment
import Control.Exception as E
econst :: Monad m => a -> IOException -> m a
econst :: forall (m :: * -> *) a. Monad m => a -> IOException -> m a
econst = forall a b. a -> b -> a
const forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall (m :: * -> *) a. Monad m => a -> m a
return
data Ssh = Ssh
instance XPrompt Ssh where
showXPrompt :: Ssh -> String
showXPrompt Ssh
Ssh = String
"SSH to: "
commandToComplete :: Ssh -> String -> String
commandToComplete Ssh
_ String
c = forall b a. b -> (a -> b) -> Maybe a -> b
maybe String
c forall a b. (a, b) -> b
snd (String -> Maybe (String, String)
parseHost String
c)
nextCompletion :: Ssh -> String -> [String] -> String
nextCompletion Ssh
_t String
c [String]
l = forall b a. b -> (a -> b) -> Maybe a -> b
maybe String
next (\(String
u,String
_h) -> String
u forall a. [a] -> [a] -> [a]
++ String
"@" forall a. [a] -> [a] -> [a]
++ String
next) Maybe (String, String)
hostPared
where
hostPared :: Maybe (String, String)
hostPared = String -> Maybe (String, String)
parseHost String
c
next :: String
next = String -> [String] -> String
getNextCompletion (forall b a. b -> (a -> b) -> Maybe a -> b
maybe String
c forall a b. (a, b) -> b
snd Maybe (String, String)
hostPared) [String]
l
sshPrompt :: XPConfig -> X ()
sshPrompt :: XPConfig -> X ()
sshPrompt XPConfig
c = do
[String]
sc <- forall (m :: * -> *) a. MonadIO m => IO a -> m a
io IO [String]
sshComplList
forall p.
XPrompt p =>
p -> XPConfig -> ComplFunction -> (String -> X ()) -> X ()
mkXPrompt Ssh
Ssh XPConfig
c (XPConfig -> [String] -> ComplFunction
mkComplFunFromList XPConfig
c [String]
sc) String -> X ()
ssh
ssh :: String -> X ()
ssh :: String -> X ()
ssh = String -> String -> X ()
runInTerm String
"" forall b c a. (b -> c) -> (a -> b) -> a -> c
. (String
"ssh " forall a. [a] -> [a] -> [a]
++ )
sshComplList :: IO [String]
sshComplList :: IO [String]
sshComplList = forall a. Ord a => [a] -> [a]
uniqSort forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall (f :: * -> *) a b c.
Applicative f =>
(a -> b -> c) -> f a -> f b -> f c
liftA2 forall a. [a] -> [a] -> [a]
(++) IO [String]
sshComplListLocal IO [String]
sshComplListGlobal
sshComplListLocal :: IO [String]
sshComplListLocal :: IO [String]
sshComplListLocal = do
String
h <- String -> IO String
getEnv String
"HOME"
[String]
s1 <- ComplFunction
sshComplListFile forall a b. (a -> b) -> a -> b
$ String
h forall a. [a] -> [a] -> [a]
++ String
"/.ssh/known_hosts"
[String]
s2 <- ComplFunction
sshComplListConf forall a b. (a -> b) -> a -> b
$ String
h forall a. [a] -> [a] -> [a]
++ String
"/.ssh/config"
forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ [String]
s1 forall a. [a] -> [a] -> [a]
++ [String]
s2
sshComplListGlobal :: IO [String]
sshComplListGlobal :: IO [String]
sshComplListGlobal = do
String
env <- String -> IO String
getEnv String
"SSH_KNOWN_HOSTS" forall e a. Exception e => IO a -> (e -> IO a) -> IO a
`E.catch` forall (m :: * -> *) a. Monad m => a -> IOException -> m a
econst String
"/nonexistent"
[Maybe String]
fs <- forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM String -> IO (Maybe String)
fileExists [ String
env
, String
"/usr/local/etc/ssh/ssh_known_hosts"
, String
"/usr/local/etc/ssh_known_hosts"
, String
"/etc/ssh/ssh_known_hosts"
, String
"/etc/ssh_known_hosts"
]
case forall a. [Maybe a] -> [a]
catMaybes [Maybe String]
fs of
[] -> forall (m :: * -> *) a. Monad m => a -> m a
return []
(String
f:[String]
_) -> ComplFunction
sshComplListFile' String
f
sshComplListFile :: String -> IO [String]
sshComplListFile :: ComplFunction
sshComplListFile String
kh = do
Bool
f <- String -> IO Bool
doesFileExist String
kh
if Bool
f then ComplFunction
sshComplListFile' String
kh
else forall (m :: * -> *) a. Monad m => a -> m a
return []
sshComplListFile' :: String -> IO [String]
sshComplListFile' :: ComplFunction
sshComplListFile' String
kh = do
String
l <- String -> IO String
readFile String
kh
forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall a b. (a -> b) -> [a] -> [b]
map (String -> String
getWithPort forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a. (a -> Bool) -> [a] -> [a]
takeWhile (forall a. Eq a => a -> a -> Bool
/= Char
',') forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall (t :: * -> *) a. Foldable t => t [a] -> [a]
concat forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a. Int -> [a] -> [a]
take Int
1 forall b c a. (b -> c) -> (a -> b) -> a -> c
. String -> [String]
words)
forall a b. (a -> b) -> a -> b
$ forall a. (a -> Bool) -> [a] -> [a]
filter String -> Bool
nonComment
forall a b. (a -> b) -> a -> b
$ String -> [String]
lines String
l
sshComplListConf :: String -> IO [String]
sshComplListConf :: ComplFunction
sshComplListConf String
kh = do
Bool
f <- String -> IO Bool
doesFileExist String
kh
if Bool
f then ComplFunction
sshComplListConf' String
kh
else forall (m :: * -> *) a. Monad m => a -> m a
return []
sshComplListConf' :: String -> IO [String]
sshComplListConf' :: ComplFunction
sshComplListConf' String
kh = do
String
l <- String -> IO String
readFile String
kh
forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall a b. (a -> b) -> [a] -> [b]
map (forall a. [a] -> Int -> a
!!Int
1)
forall a b. (a -> b) -> a -> b
$ forall a. (a -> Bool) -> [a] -> [a]
filter [String] -> Bool
isHost
forall a b. (a -> b) -> a -> b
$ forall a b. (a -> b) -> [a] -> [b]
map String -> [String]
words
forall a b. (a -> b) -> a -> b
$ String -> [String]
lines String
l
where
isHost :: [String] -> Bool
isHost [String]
ws = forall a. Int -> [a] -> [a]
take Int
1 [String]
ws forall a. Eq a => a -> a -> Bool
== [String
"Host"] Bool -> Bool -> Bool
&& forall (t :: * -> *) a. Foldable t => t a -> Int
length [String]
ws forall a. Ord a => a -> a -> Bool
> Int
1
fileExists :: String -> IO (Maybe String)
fileExists :: String -> IO (Maybe String)
fileExists String
kh = do
Bool
f <- String -> IO Bool
doesFileExist String
kh
if Bool
f then forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall a. a -> Maybe a
Just String
kh
else forall (m :: * -> *) a. Monad m => a -> m a
return forall a. Maybe a
Nothing
nonComment :: String -> Bool
[] = Bool
False
nonComment (Char
'#':String
_) = Bool
False
nonComment (Char
'|':String
_) = Bool
False
nonComment String
_ = Bool
True
getWithPort :: String -> String
getWithPort :: String -> String
getWithPort (Char
'[':String
str) = String
host forall a. [a] -> [a] -> [a]
++ String
" -p " forall a. [a] -> [a] -> [a]
++ String
port
where (String
host,String
p) = forall a. (a -> Bool) -> [a] -> ([a], [a])
break (forall a. Eq a => a -> a -> Bool
==Char
']') String
str
port :: String
port = case String
p of
Char
']':Char
':':String
x -> String
x
String
_ -> String
"22"
getWithPort String
str = String
str
parseHost :: String -> Maybe (String, String)
parseHost :: String -> Maybe (String, String)
parseHost String
a = forall a. Eq a => a -> [a] -> Maybe Int
elemIndex Char
'@' String
a forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= (\Int
c-> forall a. a -> Maybe a
Just ( forall a. Int -> [a] -> [a]
take Int
c String
a, forall a. Int -> [a] -> [a]
drop (Int
cforall a. Num a => a -> a -> a
+Int
1) String
a ) )