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{- hpodder component
Copyright (C) 2006-2010 John Goerzen <>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
{- |
Module : Config
Copyright : Copyright (C) 2006-2010 John Goerzen
License : GNU GPL, version 2 or above
Maintainer : John Goerzen <>
Stability : provisional
Portability: portable
Written by John Goerzen, jgoerzen\
module Config where
import System.Directory
import Data.ConfigFile
import Control.Monad
import Data.Either.Utils
import Data.String.Utils(strip, split)
import System.Posix.Files(rename, setFileCreationMask)
import System.Log.Logger
getDefaultCP =
do return $ forceEither $
do cp <- set startingcp "DEFAULT" "serverbase" ""
cp <- set cp "DEFAULT" "urlbase" "%(serverbase)s/1.1"
cp <- set cp "DEFAULT" "oauthrequesttoken" "%(serverbase)s/oauth/request_token"
cp <- set cp "DEFAULT" "oauthaccesstoken" "%(serverbase)s/oauth/access_token"
cp <- set cp "DEFAULT" "oauthauthorize" "%(serverbase)s/oauth/authorize"
cp <- set cp "DEFAULT" "sendmail" "/usr/sbin/sendmail"
cp <- set cp "DEFAULT" "shortenurls" "yes"
cp <- set cp "DEFAULT" "shortenall" "no"
return cp
startingcp = emptyCP {accessfunc = interpolatingAccess 10}
getCPName =
do appdir <- getUserDocumentsDirectory
return $ appdir ++ "/.twidgerc"
loadCP useDefaultIfMissing cpgiven =
do cpname <- case cpgiven of
Nothing -> getCPName
Just x -> return x
defaultcp <- getDefaultCP
dfe <- doesFileExist cpname
debugM "Config" $ "CP " ++ cpname ++ " exists? " ++ show dfe
if dfe
then do cp <- readfile defaultcp cpname
return $ forceEither cp
else if useDefaultIfMissing
then return defaultcp
else do fail $ "No config file found at " ++ cpname ++
"\nRun twidge setup to configure twidge for use."
writeCP cpgiven cp =
do cpname <- case cpgiven of
Nothing -> getCPName
Just x -> return x
let tempname = cpname ++ ".write.tmp"
setFileCreationMask 0o0077
writeFile tempname (to_string cp)
rename tempname cpname
getList :: ConfigParser -> String -> String -> Maybe [String]
getList cp sect key =
case get cp sect key of
Right x -> Just (splitit x)
Left _ -> Nothing
where splitit x = filter (/= "") . map strip . split "," $ x