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authorGregor Kleen <gkleen@yggdrasil.li>2021-01-03 00:55:29 +0100
committerGregor Kleen <gkleen@yggdrasil.li>2021-01-03 16:21:34 +0100
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treef571511e0b74fbd7e78f7e10966a8d6d5d400241 /accounts/gkleen@sif/xmonad/lib/XMonad/Prompt
parent3b5ab82fa714a0d483a7b90d60f9f7c857646e33 (diff)
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gkleen@sif: import
Diffstat (limited to 'accounts/gkleen@sif/xmonad/lib/XMonad/Prompt')
-rw-r--r--accounts/gkleen@sif/xmonad/lib/XMonad/Prompt/MyPass.hs94
-rw-r--r--accounts/gkleen@sif/xmonad/lib/XMonad/Prompt/MyShell.hs105
-rw-r--r--accounts/gkleen@sif/xmonad/lib/XMonad/Prompt/MySsh.hs243
3 files changed, 442 insertions, 0 deletions
diff --git a/accounts/gkleen@sif/xmonad/lib/XMonad/Prompt/MyPass.hs b/accounts/gkleen@sif/xmonad/lib/XMonad/Prompt/MyPass.hs
new file mode 100644
index 00000000..1caefae5
--- /dev/null
+++ b/accounts/gkleen@sif/xmonad/lib/XMonad/Prompt/MyPass.hs
@@ -0,0 +1,94 @@
1module XMonad.Prompt.MyPass
2 (
3 -- * Usages
4 -- $usages
5 mkPassPrompt
6 ) where
7
8import Control.Monad (liftM)
9import XMonad.Core
10import XMonad.Prompt ( XPrompt
11 , showXPrompt
12 , commandToComplete
13 , nextCompletion
14 , getNextCompletion
15 , XPConfig
16 , mkXPrompt
17 , searchPredicate)
18import System.Directory (getHomeDirectory)
19import System.FilePath (takeExtension, dropExtension, combine)
20import System.Posix.Env (getEnv)
21import XMonad.Util.Run (runProcessWithInput)
22
23-- $usages
24-- You can use this module with the following in your @~\/.xmonad\/xmonad.hs@:
25--
26-- > import XMonad.Prompt.Pass
27--
28-- Then add a keybinding for 'passPrompt', 'passGeneratePrompt' or 'passRemovePrompt':
29--
30-- > , ((modMask x , xK_p) , passPrompt xpconfig)
31-- > , ((modMask x .|. controlMask, xK_p) , passGeneratePrompt xpconfig)
32-- > , ((modMask x .|. controlMask .|. shiftMask, xK_p), passRemovePrompt xpconfig)
33--
34-- For detailed instructions on:
35--
36-- - editing your key bindings, see "XMonad.Doc.Extending#Editing_key_bindings".
37--
38-- - how to setup the password storage, see <http://git.zx2c4.com/password-store/about/>
39--
40
41type Predicate = String -> String -> Bool
42
43getPassCompl :: [String] -> Predicate -> String -> IO [String]
44getPassCompl compls p s
45 | length s <= minL
46 , all ((> minL) . length) compls = return []
47 | otherwise = do return $ filter (p s) compls
48 where
49 minL = 3
50
51type PromptLabel = String
52
53data Pass = Pass PromptLabel
54
55instance XPrompt Pass where
56 showXPrompt (Pass prompt) = prompt ++ ": "
57 commandToComplete _ c = c
58 nextCompletion _ = getNextCompletion
59
60-- | Default password store folder in $HOME/.password-store
61--
62passwordStoreFolderDefault :: String -> String
63passwordStoreFolderDefault home = combine home ".password-store"
64
65-- | Compute the password store's location.
66-- Use the PASSWORD_STORE_DIR environment variable to set the password store.
67-- If empty, return the password store located in user's home.
68--
69passwordStoreFolder :: IO String
70passwordStoreFolder =
71 getEnv "PASSWORD_STORE_DIR" >>= computePasswordStoreDir
72 where computePasswordStoreDir Nothing = liftM passwordStoreFolderDefault getHomeDirectory
73 computePasswordStoreDir (Just storeDir) = return storeDir
74
75-- | A pass prompt factory
76--
77mkPassPrompt :: PromptLabel -> (String -> X ()) -> XPConfig -> X ()
78mkPassPrompt promptLabel passwordFunction xpconfig = do
79 passwords <- io (passwordStoreFolder >>= getPasswords)
80 mkXPrompt (Pass promptLabel) xpconfig (getPassCompl passwords $ searchPredicate xpconfig) passwordFunction
81
82-- | Retrieve the list of passwords from the password storage 'passwordStoreDir
83getPasswords :: FilePath -> IO [String]
84getPasswords passwordStoreDir = do
85 files <- runProcessWithInput "find" [
86 passwordStoreDir,
87 "-type", "f",
88 "-name", "*.gpg",
89 "-printf", "%P\n"] []
90 return $ map removeGpgExtension $ lines files
91
92removeGpgExtension :: String -> String
93removeGpgExtension file | takeExtension file == ".gpg" = dropExtension file
94 | otherwise = file
diff --git a/accounts/gkleen@sif/xmonad/lib/XMonad/Prompt/MyShell.hs b/accounts/gkleen@sif/xmonad/lib/XMonad/Prompt/MyShell.hs
new file mode 100644
index 00000000..c268f87d
--- /dev/null
+++ b/accounts/gkleen@sif/xmonad/lib/XMonad/Prompt/MyShell.hs
@@ -0,0 +1,105 @@
1module XMonad.Prompt.MyShell
2 ( Shell (..)
3 , shellPrompt
4 , prompt
5 , safePrompt
6 , unsafePrompt
7 , getCommands
8 , getShellCompl
9 , split
10 ) where
11
12import Codec.Binary.UTF8.String (encodeString)
13import Control.Exception as E
14import Control.Monad (forM)
15import Data.List (isPrefixOf)
16import System.Directory (doesDirectoryExist, getDirectoryContents)
17import System.Environment (getEnv)
18import System.Posix.Files (getFileStatus, isDirectory)
19
20import XMonad hiding (config)
21import XMonad.Prompt
22import XMonad.Util.Run
23
24econst :: Monad m => a -> IOException -> m a
25econst = const . return
26
27data Shell = Shell String
28
29instance XPrompt Shell where
30 showXPrompt (Shell q) = q
31 completionToCommand _ = escape
32
33shellPrompt :: String -> XPConfig -> X ()
34shellPrompt q c = do
35 cmds <- io getCommands
36 mkXPrompt (Shell q) c (getShellCompl cmds) spawn
37
38{- $spawns
39 See safe and unsafeSpawn in "XMonad.Util.Run".
40 prompt is an alias for safePrompt;
41 safePrompt and unsafePrompt work on the same principles, but will use
42 XPrompt to interactively query the user for input; the appearance is
43 set by passing an XPConfig as the second argument. The first argument
44 is the program to be run with the interactive input.
45 You would use these like this:
46
47 > , ((modm, xK_b), safePrompt "firefox" greenXPConfig)
48 > , ((modm .|. shiftMask, xK_c), prompt ("xterm" ++ " -e") greenXPConfig)
49
50 Note that you want to use safePrompt for Firefox input, as Firefox
51 wants URLs, and unsafePrompt for the XTerm example because this allows
52 you to easily start a terminal executing an arbitrary command, like
53 'top'. -}
54
55prompt, unsafePrompt, safePrompt :: String -> FilePath -> XPConfig -> X ()
56prompt = unsafePrompt
57safePrompt q c config = mkXPrompt (Shell q) config (getShellCompl [c]) run
58 where run = safeSpawn c . return
59unsafePrompt q c config = mkXPrompt (Shell q) config (getShellCompl [c]) run
60 where run a = unsafeSpawn $ c ++ " " ++ a
61
62getShellCompl :: [String] -> String -> IO [String]
63getShellCompl cmds s | s == "" || last s == ' ' = return []
64 | otherwise = do
65 f <- fmap lines $ runProcessWithInput "bash" [] ("compgen -A file -- "
66 ++ s ++ "\n")
67 files <- case f of
68 [x] -> do fs <- getFileStatus (encodeString x)
69 if isDirectory fs then return [x ++ "/"]
70 else return [x]
71 _ -> return f
72 return . uniqSort $ files ++ commandCompletionFunction cmds s
73
74commandCompletionFunction :: [String] -> String -> [String]
75commandCompletionFunction cmds str | '/' `elem` str = []
76 | otherwise = filter (isPrefixOf str) cmds
77
78getCommands :: IO [String]
79getCommands = do
80 p <- getEnv "PATH" `E.catch` econst []
81 let ds = filter (/= "") $ split ':' p
82 es <- forM ds $ \d -> do
83 exists <- doesDirectoryExist d
84 if exists
85 then getDirectoryContents d
86 else return []
87 return . uniqSort . filter ((/= '.') . head) . concat $ es
88
89split :: Eq a => a -> [a] -> [[a]]
90split _ [] = []
91split e l =
92 f : split e (rest ls)
93 where
94 (f,ls) = span (/=e) l
95 rest s | s == [] = []
96 | otherwise = tail s
97
98escape :: String -> String
99escape [] = ""
100escape (x:xs)
101 | isSpecialChar x = '\\' : x : escape xs
102 | otherwise = x : escape xs
103
104isSpecialChar :: Char -> Bool
105isSpecialChar = flip elem " &\\@\"'#?$*()[]{};"
diff --git a/accounts/gkleen@sif/xmonad/lib/XMonad/Prompt/MySsh.hs b/accounts/gkleen@sif/xmonad/lib/XMonad/Prompt/MySsh.hs
new file mode 100644
index 00000000..c85d0f92
--- /dev/null
+++ b/accounts/gkleen@sif/xmonad/lib/XMonad/Prompt/MySsh.hs
@@ -0,0 +1,243 @@
1module XMonad.Prompt.MySsh
2 ( -- * Usage
3 -- $usage
4 sshPrompt,
5 Ssh,
6 Override (..),
7 mkOverride,
8 Conn (..),
9 moshCmd,
10 moshCmd',
11 sshCmd,
12 inTmux,
13 withEnv
14 ) where
15
16import XMonad
17import XMonad.Util.Run
18import XMonad.Prompt
19
20import System.Directory
21import System.Environment
22import qualified Control.Exception as E
23
24import Control.Monad
25import Data.Maybe
26
27import Text.Parsec.String
28import Text.Parsec
29import Data.Char (isSpace)
30
31econst :: Monad m => a -> E.IOException -> m a
32econst = const . return
33
34-- $usage
35-- 1. In your @~\/.xmonad\/xmonad.hs@:
36--
37-- > import XMonad.Prompt
38-- > import XMonad.Prompt.Ssh
39--
40-- 2. In your keybindings add something like:
41--
42-- > , ((modm .|. controlMask, xK_s), sshPrompt defaultXPConfig)
43--
44-- Keep in mind, that if you want to use the completion you have to
45-- disable the "HashKnownHosts" option in your ssh_config
46--
47-- For detailed instruction on editing the key binding see
48-- "XMonad.Doc.Extending#Editing_key_bindings".
49
50data Override = Override
51 { oUser :: Maybe String
52 , oHost :: String
53 , oPort :: Maybe Int
54 , oCommand :: Conn -> String
55 }
56
57mkOverride = Override { oUser = Nothing, oHost = "", oPort = Nothing, oCommand = sshCmd }
58sshCmd c = concat
59 [ "ssh -t "
60 , if isJust $ cUser c then (fromJust $ cUser c) ++ "@" else ""
61 , cHost c
62 , if isJust $ cPort c then " -p " ++ (show $ fromJust $ cPort c) else ""
63 , " -- "
64 , cCommand c
65 ]
66moshCmd c = concat
67 [ "mosh "
68 , if isJust $ cUser c then (fromJust $ cUser c) ++ "@" else ""
69 , cHost c
70 , if isJust $ cPort c then " --ssh=\"ssh -p " ++ (show $ fromJust $ cPort c) ++ "\"" else ""
71 , " -- "
72 , cCommand c
73 ]
74moshCmd' p c = concat
75 [ "mosh "
76 , "--server=" ++ p ++ " "
77 , if isJust $ cUser c then (fromJust $ cUser c) ++ "@" else ""
78 , cHost c
79 , if isJust $ cPort c then " --ssh=\"ssh -p " ++ (show $ fromJust $ cPort c) ++ "\"" else ""
80 , " -- "
81 , cCommand c
82 ]
83inTmux c
84 | null $ cCommand c = c { cCommand = "tmux new-session" }
85 | otherwise = c { cCommand = "tmux new-session \"" ++ (cCommand c) ++ "\"" }
86withEnv :: [(String, String)] -> Conn -> Conn
87withEnv envs c = c { cCommand = "env" ++ (concat $ map (\(n, v) -> ' ' : (n ++ "=" ++ v)) envs) ++ " " ++ (cCommand c) }
88
89data Conn = Conn
90 { cUser :: Maybe String
91 , cHost :: String
92 , cPort :: Maybe Int
93 , cCommand :: String
94 } deriving (Eq, Show, Read)
95
96data Ssh = Ssh
97
98instance XPrompt Ssh where
99 showXPrompt Ssh = "SSH to: "
100 commandToComplete _ c = c
101 nextCompletion _ = getNextCompletion
102
103toConn :: String -> Maybe Conn
104toConn = toConn' . parse connParser "(unknown)"
105toConn' :: Either ParseError Conn -> Maybe Conn
106toConn' (Left _) = Nothing
107toConn' (Right a) = Just a
108
109connParser :: Parser Conn
110connParser = do
111 spaces
112 user' <- optionMaybe $ try $ do
113 str <- many1 $ satisfy (\c -> (not $ isSpace c) && (c /= '@'))
114 char '@'
115 return str
116 host' <- many1 $ satisfy (not . isSpace)
117 port' <- optionMaybe $ try $ do
118 space
119 string "-p"
120 spaces
121 int <- many1 digit
122 (space >> return ()) <|> eof
123 return $ (read int :: Int)
124 spaces
125 command' <- many anyChar
126 eof
127 return $ Conn
128 { cHost = host'
129 , cUser = user'
130 , cPort = port'
131 , cCommand = command'
132 }
133
134sshPrompt :: [Override] -> XPConfig -> X ()
135sshPrompt o c = do
136 sc <- io sshComplList
137 mkXPrompt Ssh c (mkComplFunFromList sc) $ ssh o
138
139ssh :: [Override] -> String -> X ()
140ssh overrides str = do
141 let cmd = applyOverrides overrides str
142 liftIO $ putStr "SSH Command: "
143 liftIO $ putStrLn cmd
144 runInTerm "" cmd
145
146applyOverrides :: [Override] -> String -> String
147applyOverrides [] str = "ssh " ++ str
148applyOverrides (o:os) str = case (applyOverride o str) of
149 Just str -> str
150 Nothing -> applyOverrides os str
151
152applyOverride :: Override -> String -> Maybe String
153applyOverride o str = let
154 conn = toConn str
155 in
156 if isNothing conn then Nothing else
157 case (fromJust conn) `matches` o of
158 True -> Just $ (oCommand o) (fromJust conn)
159 False -> Nothing
160
161matches :: Conn -> Override -> Bool
162a `matches` b = and
163 [ justBool (cUser a) (oUser b) (==)
164 , (cHost a) == (oHost b)
165 , justBool (cPort a) (oPort b) (==)
166 ]
167
168justBool :: Eq a => Maybe a -> Maybe a -> (a -> a -> Bool) -> Bool
169justBool Nothing _ _ = True
170justBool _ Nothing _ = True
171justBool (Just a) (Just b) match = a `match` b
172
173sshComplList :: IO [String]
174sshComplList = uniqSort `fmap` liftM2 (++) sshComplListLocal sshComplListGlobal
175
176sshComplListLocal :: IO [String]
177sshComplListLocal = do
178 h <- getEnv "HOME"
179 s1 <- sshComplListFile $ h ++ "/.ssh/known_hosts"
180 s2 <- sshComplListConf $ h ++ "/.ssh/config"
181 return $ s1 ++ s2
182
183sshComplListGlobal :: IO [String]
184sshComplListGlobal = do
185 env <- getEnv "SSH_KNOWN_HOSTS" `E.catch` econst "/nonexistent"
186 fs <- mapM fileExists [ env
187 , "/usr/local/etc/ssh/ssh_known_hosts"
188 , "/usr/local/etc/ssh_known_hosts"
189 , "/etc/ssh/ssh_known_hosts"
190 , "/etc/ssh_known_hosts"
191 ]
192 case catMaybes fs of
193 [] -> return []
194 (f:_) -> sshComplListFile' f
195
196sshComplListFile :: String -> IO [String]
197sshComplListFile kh = do
198 f <- doesFileExist kh
199 if f then sshComplListFile' kh
200 else return []
201
202sshComplListFile' :: String -> IO [String]
203sshComplListFile' kh = do
204 l <- readFile kh
205 return $ map (getWithPort . takeWhile (/= ',') . concat . take 1 . words)
206 $ filter nonComment
207 $ lines l
208
209sshComplListConf :: String -> IO [String]
210sshComplListConf kh = do
211 f <- doesFileExist kh
212 if f then sshComplListConf' kh
213 else return []
214
215sshComplListConf' :: String -> IO [String]
216sshComplListConf' kh = do
217 l <- readFile kh
218 return $ map (!!1)
219 $ filter isHost
220 $ map words
221 $ lines l
222 where
223 isHost ws = take 1 ws == ["Host"] && length ws > 1
224
225fileExists :: String -> IO (Maybe String)
226fileExists kh = do
227 f <- doesFileExist kh
228 if f then return $ Just kh
229 else return Nothing
230
231nonComment :: String -> Bool
232nonComment [] = False
233nonComment ('#':_) = False
234nonComment ('|':_) = False -- hashed, undecodeable
235nonComment _ = True
236
237getWithPort :: String -> String
238getWithPort ('[':str) = host ++ " -p " ++ port
239 where (host,p) = break (==']') str
240 port = case p of
241 ']':':':x -> x
242 _ -> "22"
243getWithPort str = str