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Merge pull request #13 from benekastah/master
Add Yesod.Auth.OAuth2.Spotify
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*.swp | ||
dist/ | ||
cabal-dev/ | ||
.cabal-sandbox | ||
cabal.sandbox.config | ||
tags |
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{-# LANGUAGE OverloadedStrings #-} | ||
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module Yesod.Auth.OAuth2.Spotify | ||
( oauth2Spotify | ||
, module Yesod.Auth.OAuth2 | ||
) where | ||
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import Control.Applicative ((<$>), (<*>)) | ||
import Control.Exception.Lifted | ||
import Control.Monad (mzero) | ||
import Data.Aeson | ||
import Data.ByteString (ByteString) | ||
import Data.Maybe | ||
import Data.Text (Text) | ||
import Data.Text.Encoding (encodeUtf8) | ||
import Network.HTTP.Conduit(Manager) | ||
import Yesod.Auth | ||
import Yesod.Auth.OAuth2 | ||
import qualified Data.ByteString as B | ||
import qualified Data.Text as T | ||
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data SpotifyUserImage = SpotifyUserImage | ||
{ spotifyUserImageHeight :: Maybe Int | ||
, spotifyUserImageWidth :: Maybe Int | ||
, spotifyUserImageUrl :: Text | ||
} | ||
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instance FromJSON SpotifyUserImage where | ||
parseJSON (Object v) = SpotifyUserImage <$> | ||
v .: "height" <*> | ||
v .: "width" <*> | ||
v .: "url" | ||
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parseJSON _ = mzero | ||
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data SpotifyUser = SpotifyUser | ||
{ spotifyUserId :: Text | ||
, spotifyUserHref :: Text | ||
, spotifyUserUri :: Text | ||
, spotifyUserDisplayName :: Maybe Text | ||
, spotifyUserProduct :: Maybe Text | ||
, spotifyUserCountry :: Maybe Text | ||
, spotifyUserEmail :: Maybe Text | ||
, spotifyUserImages :: Maybe [SpotifyUserImage] | ||
} | ||
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instance FromJSON SpotifyUser where | ||
parseJSON (Object v) = SpotifyUser <$> | ||
v .: "id" <*> | ||
v .: "href" <*> | ||
v .: "uri" <*> | ||
v .:? "display_name" <*> | ||
v .:? "product" <*> | ||
v .:? "country" <*> | ||
v .:? "email" <*> | ||
v .:? "images" | ||
parseJSON _ = mzero | ||
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oauth2Spotify :: YesodAuth m | ||
=> Text -- ^ Client ID | ||
-> Text -- ^ Client Secret | ||
-> [ByteString] -- ^ Scopes | ||
-> AuthPlugin m | ||
oauth2Spotify clientId clientSecret scope = authOAuth2 "spotify" | ||
(OAuth2 | ||
{ oauthClientId = encodeUtf8 clientId | ||
, oauthClientSecret = encodeUtf8 clientSecret | ||
, oauthOAuthorizeEndpoint = B.append "https://accounts.spotify.com/authorize?scope=" (B.intercalate "%20" scope) | ||
, oauthAccessTokenEndpoint = "https://accounts.spotify.com/api/token" | ||
, oauthCallback = Nothing | ||
}) | ||
fetchSpotifyProfile | ||
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fetchSpotifyProfile :: Manager -> AccessToken -> IO (Creds m) | ||
fetchSpotifyProfile manager token = do | ||
result <- authGetJSON manager token "https://api.spotify.com/v1/me" | ||
case result of | ||
Right user -> return $ toCreds user | ||
Left err -> throwIO $ InvalidProfileResponse "spotify" err | ||
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toCreds :: SpotifyUser -> Creds m | ||
toCreds user = Creds "spotify" | ||
(spotifyUserId user) | ||
(mapMaybe getExtra extrasTemplate) | ||
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where | ||
userImage :: Maybe SpotifyUserImage | ||
userImage = spotifyUserImages user >>= listToMaybe | ||
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userImagePart :: (SpotifyUserImage -> Maybe a) -> Maybe a | ||
userImagePart getter = userImage >>= getter | ||
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extrasTemplate = [ ("href" , Just $ spotifyUserHref user) | ||
, ("uri" , Just $ spotifyUserUri user) | ||
, ("display_name", spotifyUserDisplayName user) | ||
, ("product" , spotifyUserProduct user) | ||
, ("country" , spotifyUserCountry user) | ||
, ("email" , spotifyUserEmail user) | ||
, ("image_url" , userImage >>= | ||
return . spotifyUserImageUrl) | ||
, ("image_height", userImagePart spotifyUserImageHeight >>= | ||
return . T.pack . show) | ||
, ("image_width" , userImagePart spotifyUserImageWidth >>= | ||
return . T.pack . show) | ||
] | ||
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getExtra :: (Text, Maybe Text) -> Maybe (Text, Text) | ||
getExtra (key, val) = fmap ((,) key) val |
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