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Diffstat (limited to 'accounts/gkleen@sif/xmonad/lib/XMonad/Prompt/MyPass.hs')
-rw-r--r-- | accounts/gkleen@sif/xmonad/lib/XMonad/Prompt/MyPass.hs | 94 |
1 files changed, 94 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 | |||
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1 | module XMonad.Prompt.MyPass | ||
2 | ( | ||
3 | -- * Usages | ||
4 | -- $usages | ||
5 | mkPassPrompt | ||
6 | ) where | ||
7 | |||
8 | import Control.Monad (liftM) | ||
9 | import XMonad.Core | ||
10 | import XMonad.Prompt ( XPrompt | ||
11 | , showXPrompt | ||
12 | , commandToComplete | ||
13 | , nextCompletion | ||
14 | , getNextCompletion | ||
15 | , XPConfig | ||
16 | , mkXPrompt | ||
17 | , searchPredicate) | ||
18 | import System.Directory (getHomeDirectory) | ||
19 | import System.FilePath (takeExtension, dropExtension, combine) | ||
20 | import System.Posix.Env (getEnv) | ||
21 | import 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 | |||
41 | type Predicate = String -> String -> Bool | ||
42 | |||
43 | getPassCompl :: [String] -> Predicate -> String -> IO [String] | ||
44 | getPassCompl 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 | |||
51 | type PromptLabel = String | ||
52 | |||
53 | data Pass = Pass PromptLabel | ||
54 | |||
55 | instance 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 | -- | ||
62 | passwordStoreFolderDefault :: String -> String | ||
63 | passwordStoreFolderDefault 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 | -- | ||
69 | passwordStoreFolder :: IO String | ||
70 | passwordStoreFolder = | ||
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 | -- | ||
77 | mkPassPrompt :: PromptLabel -> (String -> X ()) -> XPConfig -> X () | ||
78 | mkPassPrompt 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 | ||
83 | getPasswords :: FilePath -> IO [String] | ||
84 | getPasswords 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 | |||
92 | removeGpgExtension :: String -> String | ||
93 | removeGpgExtension file | takeExtension file == ".gpg" = dropExtension file | ||
94 | | otherwise = file | ||