{-# LANGUAGE OverloadedStrings #-}
module Yesod.Auth.OAuth2.Slack
( SlackScope(..)
, oauth2Slack
, oauth2SlackScoped
)
where
import Yesod.Auth.OAuth2.Prelude
import Network.HTTP.Client
(httpLbs, parseUrlThrow, responseBody, setQueryString)
import Yesod.Auth.OAuth2.Exception as YesodOAuth2Exception
data SlackScope
= SlackBasicScope
| SlackEmailScope
| SlackTeamScope
| SlackAvatarScope
scopeText :: SlackScope -> Text
scopeText :: SlackScope -> Text
scopeText SlackScope
SlackBasicScope = Text
"identity.basic"
scopeText SlackScope
SlackEmailScope = Text
"identity.email"
scopeText SlackScope
SlackTeamScope = Text
"identity.team"
scopeText SlackScope
SlackAvatarScope = Text
"identity.avatar"
newtype User = User Text
instance FromJSON User where
parseJSON :: Value -> Parser User
parseJSON = String -> (Object -> Parser User) -> Value -> Parser User
forall a. String -> (Object -> Parser a) -> Value -> Parser a
withObject String
"User" ((Object -> Parser User) -> Value -> Parser User)
-> (Object -> Parser User) -> Value -> Parser User
forall a b. (a -> b) -> a -> b
$ \Object
root -> do
Object
o <- Object
root Object -> Text -> Parser Object
forall a. FromJSON a => Object -> Text -> Parser a
.: Text
"user"
Text -> User
User (Text -> User) -> Parser Text -> Parser User
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Object
o Object -> Text -> Parser Text
forall a. FromJSON a => Object -> Text -> Parser a
.: Text
"id"
pluginName :: Text
pluginName :: Text
pluginName = Text
"slack"
defaultScopes :: [SlackScope]
defaultScopes :: [SlackScope]
defaultScopes = [SlackScope
SlackBasicScope]
oauth2Slack :: YesodAuth m => Text -> Text -> AuthPlugin m
oauth2Slack :: Text -> Text -> AuthPlugin m
oauth2Slack = [SlackScope] -> Text -> Text -> AuthPlugin m
forall m.
YesodAuth m =>
[SlackScope] -> Text -> Text -> AuthPlugin m
oauth2SlackScoped [SlackScope]
defaultScopes
oauth2SlackScoped :: YesodAuth m => [SlackScope] -> Text -> Text -> AuthPlugin m
oauth2SlackScoped :: [SlackScope] -> Text -> Text -> AuthPlugin m
oauth2SlackScoped [SlackScope]
scopes Text
clientId Text
clientSecret =
Text -> OAuth2 -> FetchCreds m -> AuthPlugin m
forall m.
YesodAuth m =>
Text -> OAuth2 -> FetchCreds m -> AuthPlugin m
authOAuth2 Text
pluginName OAuth2
oauth2 (FetchCreds m -> AuthPlugin m) -> FetchCreds m -> AuthPlugin m
forall a b. (a -> b) -> a -> b
$ \Manager
manager OAuth2Token
token -> do
let param :: ByteString
param = Text -> ByteString
encodeUtf8 (Text -> ByteString) -> Text -> ByteString
forall a b. (a -> b) -> a -> b
$ AccessToken -> Text
atoken (AccessToken -> Text) -> AccessToken -> Text
forall a b. (a -> b) -> a -> b
$ OAuth2Token -> AccessToken
accessToken OAuth2Token
token
Request
req <- [(ByteString, Maybe ByteString)] -> Request -> Request
setQueryString [(ByteString
"token", ByteString -> Maybe ByteString
forall a. a -> Maybe a
Just ByteString
param)]
(Request -> Request) -> IO Request -> IO Request
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> String -> IO Request
forall (m :: * -> *). MonadThrow m => String -> m Request
parseUrlThrow String
"https://slack.com/api/users.identity"
ByteString
userResponse <- Response ByteString -> ByteString
forall body. Response body -> body
responseBody (Response ByteString -> ByteString)
-> IO (Response ByteString) -> IO ByteString
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Request -> Manager -> IO (Response ByteString)
httpLbs Request
req Manager
manager
(String -> IO (Creds m))
-> (User -> IO (Creds m)) -> Either String User -> IO (Creds m)
forall a c b. (a -> c) -> (b -> c) -> Either a b -> c
either
(YesodOAuth2Exception -> IO (Creds m)
forall (m :: * -> *) e a. (MonadThrow m, Exception e) => e -> m a
throwIO (YesodOAuth2Exception -> IO (Creds m))
-> (String -> YesodOAuth2Exception) -> String -> IO (Creds m)
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Text -> String -> YesodOAuth2Exception
YesodOAuth2Exception.JSONDecodingError Text
pluginName)
(\(User Text
userId) -> Creds m -> IO (Creds m)
forall (f :: * -> *) a. Applicative f => a -> f a
pure Creds :: forall master. Text -> Text -> [(Text, Text)] -> Creds master
Creds
{ credsPlugin :: Text
credsPlugin = Text
pluginName
, credsIdent :: Text
credsIdent = Text
userId
, credsExtra :: [(Text, Text)]
credsExtra = OAuth2Token -> ByteString -> [(Text, Text)]
setExtra OAuth2Token
token ByteString
userResponse
}
)
(Either String User -> IO (Creds m))
-> Either String User -> IO (Creds m)
forall a b. (a -> b) -> a -> b
$ ByteString -> Either String User
forall a. FromJSON a => ByteString -> Either String a
eitherDecode ByteString
userResponse
where
oauth2 :: OAuth2
oauth2 = OAuth2 :: Text -> Maybe Text -> URI -> URI -> Maybe URI -> OAuth2
OAuth2
{ oauthClientId :: Text
oauthClientId = Text
clientId
, oauthClientSecret :: Maybe Text
oauthClientSecret = Text -> Maybe Text
forall a. a -> Maybe a
Just Text
clientSecret
, oauthOAuthorizeEndpoint :: URI
oauthOAuthorizeEndpoint =
URI
"https://slack.com/oauth/authorize"
URI -> [(ByteString, ByteString)] -> URI
forall a. URIRef a -> [(ByteString, ByteString)] -> URIRef a
`withQuery` [Text -> [Text] -> (ByteString, ByteString)
scopeParam Text
"," ([Text] -> (ByteString, ByteString))
-> [Text] -> (ByteString, ByteString)
forall a b. (a -> b) -> a -> b
$ (SlackScope -> Text) -> [SlackScope] -> [Text]
forall a b. (a -> b) -> [a] -> [b]
map SlackScope -> Text
scopeText [SlackScope]
scopes]
, oauthAccessTokenEndpoint :: URI
oauthAccessTokenEndpoint = URI
"https://slack.com/api/oauth.access"
, oauthCallback :: Maybe URI
oauthCallback = Maybe URI
forall a. Maybe a
Nothing
}