Login.hs

-- Copyright (c) 2010, Diego Souza
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module Yql.UI.CLI.Commands.Login
       ( login
       ) where

import Yql.Core.Backend
import Yql.Core.Types
import Yql.UI.CLI.Command
import Network.OAuth.Consumer
import Network.OAuth.Http.CurlHttpClient

-- | Removes any saved oauth_token.
login :: Yql y => y -> Command ()
login be = Command (const doc, exe)
  where doc = "Execute the oauth authorization flow to perform authenticated requests."

        exe link _ = do { runOAuth handleE NoToken (credentials be CurlClient User)
                        ; return ()
                        }
          where handleE err = case (lines err)
                              of []     -> putStrLn $ link ++ ": error"
                                 (x:xs) -> putStrLn $ unlines ((link ++ ": " ++ x) : xs)