oisafe2pstore.hs: script to migrate from OI Safe

Quick and dirty Haskell script that converts OI Safe export CSV
format into the password-store repository format. After conversion,
you will need to `git add` the newly generated files, commit and
push them to the server. Then pull or sync on the Android device.

Signed-off-by: Eugene Crosser <crosser@average.org>

contrib/oisafe2pstore/oisafe2pstore.hs

@@ -0,0 +1,85 @@
+{-
+  oisafe2psore - Quick and dirty script to convert OI Safe export CSV
+                 into the password-store tree format.
+
+  Copyright 2016 Eugene Crosser
+
+  License: BSD, Apache or GPLv3 - chose whatever suits you.
+
+  You will need to adjust paths to the GnuPG program and the CSV
+  file produced by OI Safe. Also fill in the PGP key I.D.
+  Description becomes the file name. '*' in the Description is
+  converted to '+', '/' - to '-'. If this is not sufficient,
+  adjust the function `sanitize`.
+-}
+
+{-# LANGUAGE OverloadedStrings #-}
+
+module Main where
+
+--import Data.Text hiding (head, tail, reverse, length, map)
+import Control.Monad
+import Text.CSV
+import System.Directory
+import System.Process
+import System.Exit
+
+--gpg = "/usr/local/bin/gpg2"
+gpg = "/usr/bin/gpg2"
+
+keyid = "01234567" -- !!!Fill in the real I.D. here!!!
+
+data Entry = Entry { fCategory :: String
+                   , fDescription :: String
+                   , fWebsite :: String
+                   , fUsername :: String
+                   , fPassword :: String
+                   , fNotes :: String
+                   };
+
+instance Show Entry where
+  show e = fPassword e
+        ++ nonempty "User" (fUsername e)
+        ++ nonempty "Website" (fWebsite e)
+        ++ nonempty "Notes" (fNotes e)
+    where
+      nonempty :: String -> String -> String
+      nonempty l v = if length v > 0 then "\n" ++ l ++ ": " ++ v else ""
+
+pathOf e = (sanitize (fCategory e), sanitize (fDescription e))
+
+sanitize = map substsafe
+  where
+  substsafe '/' = '-'
+  substsafe '*' = '+'
+  substsafe x   = x
+
+record2entry :: Record -> Maybe Entry
+record2entry [fCat,fDesc,fWeb,fUser,fPass,fNote,_] =
+  Just (Entry { fCategory = fCat
+              , fDescription = fDesc
+              , fWebsite = fWeb
+              , fUsername = fUser
+              , fPassword = fPass
+              , fNotes = fNote
+              })
+record2entry _ = Nothing
+
+main = parseCSVFromFile "oisafe.csv"
+       >>= either (error . show) ((mapM_ makeEntry) . tail)
+
+makeEntry :: Record -> IO ()
+makeEntry = buildFile . record2entry
+
+buildFile :: Maybe Entry -> IO ()
+buildFile Nothing = return ()
+buildFile (Just e) = do
+  let 
+    (sub, file) = pathOf e
+    dir = "password-store/" ++ sub
+    path = dir ++ "/" ++ file ++ ".gpg"
+    cont = show e
+  (rc, stdout, stderr) <- readProcessWithExitCode gpg ["-ae", "-r", keyid] cont
+  when (rc /= ExitSuccess) $ error $ "gpg rc " ++ (show rc) ++ " message " ++ stderr
+  createDirectoryIfMissing True dir
+  writeFile path stdout