blob: 8055e8beb3ab67878d6dd67f8a9c3d1db1a39dcc (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
{-# LANGUAGE OverloadedStrings #-}
module Persona
( verifyEmail
) where
import Control.Monad (guard)
import Network.HTTP.Conduit
import Data.Text (Text)
import qualified Data.Text as T
import Data.ByteString.Lazy (fromStrict, toStrict)
import Data.Text.Encoding (encodeUtf8, decodeUtf8)
import Data.Aeson
import Data.Aeson.Types (parseMaybe)
import Config
verifyEmail :: Config -> Text -> IO (Maybe Text)
verifyEmail config assertion = do
initReq <- parseUrl "https://verifier.login.persona.org/verify"
let request =
(flip urlEncodedBody) initReq $
[ ("assertion", encodeUtf8 $ assertion)
, ("audience", encodeUtf8 $ hostname config)
]
manager <- newManager tlsManagerSettings
response <- httpLbs request manager
return . parseEmail . decodeUtf8 . toStrict . responseBody $ response
parseEmail :: Text -> Maybe Text
parseEmail payload = do
result <- decode . fromStrict . encodeUtf8 $ payload
flip parseMaybe result $ \obj -> do
status <- T.pack <$> obj .: "status"
guard (status == "okay")
obj .: "email"
|
