38 lines
1.3 KiB
Haskell
38 lines
1.3 KiB
Haskell
{-# LANGUAGE OverloadedStrings #-}
|
|
module Web.Authenticate.BrowserId
|
|
( browserIdJs
|
|
, checkAssertion
|
|
) where
|
|
|
|
import Data.Text (Text)
|
|
import Network.HTTP.Enumerator (parseUrl, responseBody, httpLbs, queryString, withManager)
|
|
import Network.HTTP.Types (queryTextToQuery)
|
|
import Data.Aeson (json, Value (Object, String))
|
|
import Data.Attoparsec.Lazy (parse, maybeResult)
|
|
import qualified Data.Map as Map
|
|
|
|
-- | Location of the Javascript file hosted by browserid.org
|
|
browserIdJs :: Text
|
|
browserIdJs = "https://browserid.org/include.js"
|
|
|
|
checkAssertion :: Text -- ^ audience
|
|
-> Text -- ^ assertion
|
|
-> IO (Maybe Text)
|
|
checkAssertion audience assertion = do
|
|
req' <- parseUrl "https://browserid.org/verify"
|
|
let req = req'
|
|
{ queryString = queryTextToQuery
|
|
[ ("audience", Just audience)
|
|
, ("assertion", Just assertion)
|
|
]
|
|
}
|
|
res <- withManager $ httpLbs req
|
|
let lbs = responseBody res
|
|
return $ maybeResult (parse json lbs) >>= getEmail
|
|
where
|
|
getEmail (Object o) =
|
|
case (Map.lookup "status" o, Map.lookup "email" o) of
|
|
(Just (String "okay"), Just (String e)) -> Just e
|
|
_ -> Nothing
|
|
getEmail _ = Nothing
|