-- | Bindings Access Token and Refresh Token part of The OAuth 2.0 Authorization Framework
-- RFC6749 <https://www.rfc-editor.org/rfc/rfc6749>
module Network.OAuth.OAuth2.TokenRequest where

import Control.Monad.IO.Class (MonadIO (..))
import Control.Monad.Trans.Except (ExceptT (..), throwE)
import Data.Aeson
import Data.Aeson.Key qualified as Key
import Data.Aeson.KeyMap qualified as KeyMap
import Data.ByteString.Lazy.Char8 qualified as BSL
import Data.Text (Text)
import Data.Text qualified as T
import Data.Text.Encoding qualified as T
import Network.HTTP.Conduit
import Network.HTTP.Types qualified as HT
import Network.HTTP.Types.URI (parseQuery)
import Network.OAuth.OAuth2.Internal
import URI.ByteString
import Prelude hiding (error)

--------------------------------------------------

-- * Token Request Errors

--------------------------------------------------

data TokenResponseError = TokenResponseError
  { TokenResponseError -> TokenResponseErrorCode
tokenResponseError :: TokenResponseErrorCode
  , TokenResponseError -> Maybe Text
tokenResponseErrorDescription :: Maybe Text
  , TokenResponseError -> Maybe (URIRef Absolute)
tokenResponseErrorUri :: Maybe (URIRef Absolute)
  }
  deriving (Int -> TokenResponseError -> ShowS
[TokenResponseError] -> ShowS
TokenResponseError -> String
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [TokenResponseError] -> ShowS
$cshowList :: [TokenResponseError] -> ShowS
show :: TokenResponseError -> String
$cshow :: TokenResponseError -> String
showsPrec :: Int -> TokenResponseError -> ShowS
$cshowsPrec :: Int -> TokenResponseError -> ShowS
Show, TokenResponseError -> TokenResponseError -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: TokenResponseError -> TokenResponseError -> Bool
$c/= :: TokenResponseError -> TokenResponseError -> Bool
== :: TokenResponseError -> TokenResponseError -> Bool
$c== :: TokenResponseError -> TokenResponseError -> Bool
Eq)

-- | Token Error Responses https://tools.ietf.org/html/rfc6749#section-5.2
data TokenResponseErrorCode
  = InvalidRequest
  | InvalidClient
  | InvalidGrant
  | UnauthorizedClient
  | UnsupportedGrantType
  | InvalidScope
  | UnknownErrorCode Text
  deriving (Int -> TokenResponseErrorCode -> ShowS
[TokenResponseErrorCode] -> ShowS
TokenResponseErrorCode -> String
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [TokenResponseErrorCode] -> ShowS
$cshowList :: [TokenResponseErrorCode] -> ShowS
show :: TokenResponseErrorCode -> String
$cshow :: TokenResponseErrorCode -> String
showsPrec :: Int -> TokenResponseErrorCode -> ShowS
$cshowsPrec :: Int -> TokenResponseErrorCode -> ShowS
Show, TokenResponseErrorCode -> TokenResponseErrorCode -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: TokenResponseErrorCode -> TokenResponseErrorCode -> Bool
$c/= :: TokenResponseErrorCode -> TokenResponseErrorCode -> Bool
== :: TokenResponseErrorCode -> TokenResponseErrorCode -> Bool
$c== :: TokenResponseErrorCode -> TokenResponseErrorCode -> Bool
Eq)

instance FromJSON TokenResponseErrorCode where
  parseJSON :: Value -> Parser TokenResponseErrorCode
parseJSON = forall a. String -> (Text -> Parser a) -> Value -> Parser a
withText String
"parseJSON TokenResponseErrorCode" forall a b. (a -> b) -> a -> b
$ \Text
t ->
    forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$ case Text
t of
      Text
"invalid_request" -> TokenResponseErrorCode
InvalidRequest
      Text
"invalid_client" -> TokenResponseErrorCode
InvalidClient
      Text
"invalid_grant" -> TokenResponseErrorCode
InvalidGrant
      Text
"unauthorized_client" -> TokenResponseErrorCode
UnauthorizedClient
      Text
"unsupported_grant_type" -> TokenResponseErrorCode
UnsupportedGrantType
      Text
"invalid_scope" -> TokenResponseErrorCode
InvalidScope
      Text
_ -> Text -> TokenResponseErrorCode
UnknownErrorCode Text
t

instance FromJSON TokenResponseError where
  parseJSON :: Value -> Parser TokenResponseError
parseJSON = forall a. String -> (Object -> Parser a) -> Value -> Parser a
withObject String
"parseJSON TokenResponseError" forall a b. (a -> b) -> a -> b
$ \Object
t -> do
    TokenResponseErrorCode
tokenResponseError <- Object
t forall a. FromJSON a => Object -> Key -> Parser a
.: Key
"error"
    Maybe Text
tokenResponseErrorDescription <- Object
t forall a. FromJSON a => Object -> Key -> Parser (Maybe a)
.:? Key
"error_description"
    Maybe (URIRef Absolute)
tokenResponseErrorUri <- Object
t forall a. FromJSON a => Object -> Key -> Parser (Maybe a)
.:? Key
"error_uri"
    forall (f :: * -> *) a. Applicative f => a -> f a
pure TokenResponseError {Maybe Text
Maybe (URIRef Absolute)
TokenResponseErrorCode
tokenResponseErrorUri :: Maybe (URIRef Absolute)
tokenResponseErrorDescription :: Maybe Text
tokenResponseError :: TokenResponseErrorCode
tokenResponseErrorUri :: Maybe (URIRef Absolute)
tokenResponseErrorDescription :: Maybe Text
tokenResponseError :: TokenResponseErrorCode
..}

parseTokeResponseError :: BSL.ByteString -> TokenResponseError
parseTokeResponseError :: ByteString -> TokenResponseError
parseTokeResponseError ByteString
string =
  forall a c b. (a -> c) -> (b -> c) -> Either a b -> c
either (ByteString -> String -> TokenResponseError
mkDecodeOAuth2Error ByteString
string) forall a. a -> a
id (forall a. FromJSON a => ByteString -> Either String a
eitherDecode ByteString
string)
  where
    mkDecodeOAuth2Error :: BSL.ByteString -> String -> TokenResponseError
    mkDecodeOAuth2Error :: ByteString -> String -> TokenResponseError
mkDecodeOAuth2Error ByteString
response String
err =
      TokenResponseErrorCode
-> Maybe Text -> Maybe (URIRef Absolute) -> TokenResponseError
TokenResponseError
        (Text -> TokenResponseErrorCode
UnknownErrorCode Text
"")
        (forall a. a -> Maybe a
Just forall a b. (a -> b) -> a -> b
$ String -> Text
T.pack forall a b. (a -> b) -> a -> b
$ String
"Decode TokenResponseError failed: " forall a. Semigroup a => a -> a -> a
<> String
err forall a. Semigroup a => a -> a -> a
<> String
"\n Original Response:\n" forall a. Semigroup a => a -> a -> a
<> forall a. Show a => a -> String
show (ByteString -> Text
T.decodeUtf8 forall a b. (a -> b) -> a -> b
$ ByteString -> ByteString
BSL.toStrict ByteString
response))
        forall a. Maybe a
Nothing

--------------------------------------------------

-- * URL

--------------------------------------------------

-- | Prepare the URL and the request body query for fetching an access token.
accessTokenUrl ::
  OAuth2 ->
  -- | access code gained via authorization URL
  ExchangeToken ->
  -- | access token request URL plus the request body.
  (URI, PostBody)
accessTokenUrl :: OAuth2 -> ExchangeToken -> (URIRef Absolute, PostBody)
accessTokenUrl OAuth2
oa ExchangeToken
code =
  let uri :: URIRef Absolute
uri = OAuth2 -> URIRef Absolute
oauth2TokenEndpoint OAuth2
oa
      body :: PostBody
body =
        [ (ByteString
"code", Text -> ByteString
T.encodeUtf8 forall a b. (a -> b) -> a -> b
$ ExchangeToken -> Text
extoken ExchangeToken
code)
        , (ByteString
"redirect_uri", forall a. URIRef a -> ByteString
serializeURIRef' forall a b. (a -> b) -> a -> b
$ OAuth2 -> URIRef Absolute
oauth2RedirectUri OAuth2
oa)
        , (ByteString
"grant_type", ByteString
"authorization_code")
        ]
   in (URIRef Absolute
uri, PostBody
body)

-- | Obtain a new access token by sending a Refresh Token to the Authorization server.
refreshAccessTokenUrl ::
  OAuth2 ->
  -- | Refresh Token gained via authorization URL
  RefreshToken ->
  -- | Refresh Token request URL plus the request body.
  (URI, PostBody)
refreshAccessTokenUrl :: OAuth2 -> RefreshToken -> (URIRef Absolute, PostBody)
refreshAccessTokenUrl OAuth2
oa RefreshToken
token = (URIRef Absolute
uri, PostBody
body)
  where
    uri :: URIRef Absolute
uri = OAuth2 -> URIRef Absolute
oauth2TokenEndpoint OAuth2
oa
    body :: PostBody
body =
      [ (ByteString
"grant_type", ByteString
"refresh_token")
      , (ByteString
"refresh_token", Text -> ByteString
T.encodeUtf8 forall a b. (a -> b) -> a -> b
$ RefreshToken -> Text
rtoken RefreshToken
token)
      ]

--------------------------------------------------

-- * Token management

--------------------------------------------------

-- | Exchange @code@ for an Access Token with authenticate in request header.
fetchAccessToken ::
  MonadIO m =>
  -- | HTTP connection manager
  Manager ->
  -- | OAuth Data
  OAuth2 ->
  -- | OAuth2 Code
  ExchangeToken ->
  -- | Access Token
  ExceptT TokenResponseError m OAuth2Token
fetchAccessToken :: forall (m :: * -> *).
MonadIO m =>
Manager
-> OAuth2
-> ExchangeToken
-> ExceptT TokenResponseError m OAuth2Token
fetchAccessToken = forall (m :: * -> *).
MonadIO m =>
ClientAuthenticationMethod
-> Manager
-> OAuth2
-> ExchangeToken
-> ExceptT TokenResponseError m OAuth2Token
fetchAccessTokenWithAuthMethod ClientAuthenticationMethod
ClientSecretBasic

fetchAccessToken2 ::
  MonadIO m =>
  -- | HTTP connection manager
  Manager ->
  -- | OAuth Data
  OAuth2 ->
  -- | Authorization Code
  ExchangeToken ->
  -- | Access Token
  ExceptT TokenResponseError m OAuth2Token
fetchAccessToken2 :: forall (m :: * -> *).
MonadIO m =>
Manager
-> OAuth2
-> ExchangeToken
-> ExceptT TokenResponseError m OAuth2Token
fetchAccessToken2 = forall (m :: * -> *).
MonadIO m =>
ClientAuthenticationMethod
-> Manager
-> OAuth2
-> ExchangeToken
-> ExceptT TokenResponseError m OAuth2Token
fetchAccessTokenWithAuthMethod ClientAuthenticationMethod
ClientSecretPost
{-# DEPRECATED fetchAccessToken2 "use 'fetchAccessTokenWithAuthMethod'" #-}

fetchAccessTokenInternal ::
  MonadIO m =>
  ClientAuthenticationMethod ->
  -- | HTTP connection manager
  Manager ->
  -- | OAuth Data
  OAuth2 ->
  -- | Authorization Code
  ExchangeToken ->
  -- | Access Token
  ExceptT TokenResponseError m OAuth2Token
fetchAccessTokenInternal :: forall (m :: * -> *).
MonadIO m =>
ClientAuthenticationMethod
-> Manager
-> OAuth2
-> ExchangeToken
-> ExceptT TokenResponseError m OAuth2Token
fetchAccessTokenInternal = forall (m :: * -> *).
MonadIO m =>
ClientAuthenticationMethod
-> Manager
-> OAuth2
-> ExchangeToken
-> ExceptT TokenResponseError m OAuth2Token
fetchAccessTokenWithAuthMethod
{-# DEPRECATED fetchAccessTokenInternal "use 'fetchAccessTokenWithAuthMethod'" #-}

-- | Exchange @code@ for an Access Token
--
-- OAuth2 spec allows credential (@client_id@, @client_secret@) to be sent
-- either in the header (a.k.a `ClientSecretBasic`).
-- or as form/url params (a.k.a `ClientSecretPost`).
--
-- The OAuth provider can choose to implement only one, or both.
-- Look for API document from the OAuth provider you're dealing with.
-- If you`re uncertain, try `fetchAccessToken` which sends credential
-- in authorization http header, which is common case.
--
-- @since 2.6.0
fetchAccessTokenWithAuthMethod ::
  MonadIO m =>
  ClientAuthenticationMethod ->
  -- | HTTP connection manager
  Manager ->
  -- | OAuth Data
  OAuth2 ->
  -- | Authorization Code
  ExchangeToken ->
  -- | Access Token
  ExceptT TokenResponseError m OAuth2Token
fetchAccessTokenWithAuthMethod :: forall (m :: * -> *).
MonadIO m =>
ClientAuthenticationMethod
-> Manager
-> OAuth2
-> ExchangeToken
-> ExceptT TokenResponseError m OAuth2Token
fetchAccessTokenWithAuthMethod ClientAuthenticationMethod
authMethod Manager
manager OAuth2
oa ExchangeToken
code = do
  let (URIRef Absolute
uri, PostBody
body) = OAuth2 -> ExchangeToken -> (URIRef Absolute, PostBody)
accessTokenUrl OAuth2
oa ExchangeToken
code
  let extraBody :: PostBody
extraBody = if ClientAuthenticationMethod
authMethod forall a. Eq a => a -> a -> Bool
== ClientAuthenticationMethod
ClientSecretPost then OAuth2 -> PostBody
clientSecretPost OAuth2
oa else []
  forall (m :: * -> *) a.
(MonadIO m, FromJSON a) =>
Manager
-> OAuth2
-> URIRef Absolute
-> PostBody
-> ExceptT TokenResponseError m a
doJSONPostRequest Manager
manager OAuth2
oa URIRef Absolute
uri (PostBody
body forall a. [a] -> [a] -> [a]
++ PostBody
extraBody)

-- | Fetch a new AccessToken using the Refresh Token with authentication in request header.
refreshAccessToken ::
  MonadIO m =>
  -- | HTTP connection manager.
  Manager ->
  -- | OAuth context
  OAuth2 ->
  -- | Refresh Token gained after authorization
  RefreshToken ->
  ExceptT TokenResponseError m OAuth2Token
refreshAccessToken :: forall (m :: * -> *).
MonadIO m =>
Manager
-> OAuth2
-> RefreshToken
-> ExceptT TokenResponseError m OAuth2Token
refreshAccessToken = forall (m :: * -> *).
MonadIO m =>
ClientAuthenticationMethod
-> Manager
-> OAuth2
-> RefreshToken
-> ExceptT TokenResponseError m OAuth2Token
refreshAccessTokenWithAuthMethod ClientAuthenticationMethod
ClientSecretBasic

refreshAccessToken2 ::
  MonadIO m =>
  -- | HTTP connection manager.
  Manager ->
  -- | OAuth context
  OAuth2 ->
  -- | Refresh Token gained after authorization
  RefreshToken ->
  ExceptT TokenResponseError m OAuth2Token
refreshAccessToken2 :: forall (m :: * -> *).
MonadIO m =>
Manager
-> OAuth2
-> RefreshToken
-> ExceptT TokenResponseError m OAuth2Token
refreshAccessToken2 = forall (m :: * -> *).
MonadIO m =>
ClientAuthenticationMethod
-> Manager
-> OAuth2
-> RefreshToken
-> ExceptT TokenResponseError m OAuth2Token
refreshAccessTokenWithAuthMethod ClientAuthenticationMethod
ClientSecretPost
{-# DEPRECATED refreshAccessToken2 "use 'refreshAccessTokenWithAuthMethod'" #-}

refreshAccessTokenInternal ::
  MonadIO m =>
  ClientAuthenticationMethod ->
  -- | HTTP connection manager.
  Manager ->
  -- | OAuth context
  OAuth2 ->
  -- | Refresh Token gained after authorization
  RefreshToken ->
  ExceptT TokenResponseError m OAuth2Token
refreshAccessTokenInternal :: forall (m :: * -> *).
MonadIO m =>
ClientAuthenticationMethod
-> Manager
-> OAuth2
-> RefreshToken
-> ExceptT TokenResponseError m OAuth2Token
refreshAccessTokenInternal = forall (m :: * -> *).
MonadIO m =>
ClientAuthenticationMethod
-> Manager
-> OAuth2
-> RefreshToken
-> ExceptT TokenResponseError m OAuth2Token
refreshAccessTokenWithAuthMethod
{-# DEPRECATED refreshAccessTokenInternal "use 'refreshAccessTokenWithAuthMethod'" #-}

-- | Fetch a new AccessToken using the Refresh Token.
--
-- OAuth2 spec allows credential ("client_id", "client_secret") to be sent
-- either in the header (a.k.a 'ClientSecretBasic').
-- or as form/url params (a.k.a 'ClientSecretPost').
--
-- The OAuth provider can choose to implement only one, or both.
-- Look for API document from the OAuth provider you're dealing with.
-- If you're uncertain, try 'refreshAccessToken' which sends credential
-- in authorization http header, which is common case.
--
-- @since 2.6.0
refreshAccessTokenWithAuthMethod ::
  MonadIO m =>
  ClientAuthenticationMethod ->
  -- | HTTP connection manager.
  Manager ->
  -- | OAuth context
  OAuth2 ->
  -- | Refresh Token gained after authorization
  RefreshToken ->
  ExceptT TokenResponseError m OAuth2Token
refreshAccessTokenWithAuthMethod :: forall (m :: * -> *).
MonadIO m =>
ClientAuthenticationMethod
-> Manager
-> OAuth2
-> RefreshToken
-> ExceptT TokenResponseError m OAuth2Token
refreshAccessTokenWithAuthMethod ClientAuthenticationMethod
authMethod Manager
manager OAuth2
oa RefreshToken
token = do
  let (URIRef Absolute
uri, PostBody
body) = OAuth2 -> RefreshToken -> (URIRef Absolute, PostBody)
refreshAccessTokenUrl OAuth2
oa RefreshToken
token
  let extraBody :: PostBody
extraBody = if ClientAuthenticationMethod
authMethod forall a. Eq a => a -> a -> Bool
== ClientAuthenticationMethod
ClientSecretPost then OAuth2 -> PostBody
clientSecretPost OAuth2
oa else []
  forall (m :: * -> *) a.
(MonadIO m, FromJSON a) =>
Manager
-> OAuth2
-> URIRef Absolute
-> PostBody
-> ExceptT TokenResponseError m a
doJSONPostRequest Manager
manager OAuth2
oa URIRef Absolute
uri (PostBody
body forall a. [a] -> [a] -> [a]
++ PostBody
extraBody)

--------------------------------------------------

-- * Utilies

--------------------------------------------------

-- | Conduct post request and return response as JSON.
doJSONPostRequest ::
  (MonadIO m, FromJSON a) =>
  -- | HTTP connection manager.
  Manager ->
  -- | OAuth options
  OAuth2 ->
  -- | The URL
  URI ->
  -- | request body
  PostBody ->
  -- | Response as JSON
  ExceptT TokenResponseError m a
doJSONPostRequest :: forall (m :: * -> *) a.
(MonadIO m, FromJSON a) =>
Manager
-> OAuth2
-> URIRef Absolute
-> PostBody
-> ExceptT TokenResponseError m a
doJSONPostRequest Manager
manager OAuth2
oa URIRef Absolute
uri PostBody
body = do
  ByteString
resp <- forall (m :: * -> *).
MonadIO m =>
Manager
-> OAuth2
-> URIRef Absolute
-> PostBody
-> ExceptT TokenResponseError m ByteString
doSimplePostRequest Manager
manager OAuth2
oa URIRef Absolute
uri PostBody
body
  case forall a. FromJSON a => ByteString -> Either TokenResponseError a
parseResponseFlexible ByteString
resp of
    Right a
obj -> forall (m :: * -> *) a. Monad m => a -> m a
return a
obj
    Left TokenResponseError
e -> forall (m :: * -> *) e a. Monad m => e -> ExceptT e m a
throwE TokenResponseError
e

-- | Conduct post request.
doSimplePostRequest ::
  MonadIO m =>
  -- | HTTP connection manager.
  Manager ->
  -- | OAuth options
  OAuth2 ->
  -- | URL
  URI ->
  -- | Request body.
  PostBody ->
  -- | Response as ByteString
  ExceptT TokenResponseError m BSL.ByteString
doSimplePostRequest :: forall (m :: * -> *).
MonadIO m =>
Manager
-> OAuth2
-> URIRef Absolute
-> PostBody
-> ExceptT TokenResponseError m ByteString
doSimplePostRequest Manager
manager OAuth2
oa URIRef Absolute
url PostBody
body =
  forall e (m :: * -> *) a. m (Either e a) -> ExceptT e m a
ExceptT forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO forall a b. (a -> b) -> a -> b
$ forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap Response ByteString -> Either TokenResponseError ByteString
handleOAuth2TokenResponse IO (Response ByteString)
go
  where
    go :: IO (Response ByteString)
go = do
      Request
req <- forall (m :: * -> *). MonadThrow m => URIRef Absolute -> m Request
uriToRequest URIRef Absolute
url
      let req' :: Request
req' = (OAuth2 -> Request -> Request
addBasicAuth OAuth2
oa forall b c a. (b -> c) -> (a -> b) -> a -> c
. Request -> Request
addDefaultRequestHeaders) Request
req
      forall (m :: * -> *).
MonadIO m =>
Request -> Manager -> m (Response ByteString)
httpLbs (PostBody -> Request -> Request
urlEncodedBody PostBody
body Request
req') Manager
manager

-- | Gets response body from a @Response@ if 200 otherwise assume 'Network.OAuth.OAuth2.TokenRequest.TokenResponseError'
handleOAuth2TokenResponse :: Response BSL.ByteString -> Either TokenResponseError BSL.ByteString
handleOAuth2TokenResponse :: Response ByteString -> Either TokenResponseError ByteString
handleOAuth2TokenResponse Response ByteString
rsp =
  if Status -> Bool
HT.statusIsSuccessful (forall body. Response body -> Status
responseStatus Response ByteString
rsp)
    then forall a b. b -> Either a b
Right forall a b. (a -> b) -> a -> b
$ forall body. Response body -> body
responseBody Response ByteString
rsp
    else forall a b. a -> Either a b
Left forall a b. (a -> b) -> a -> b
$ ByteString -> TokenResponseError
parseTokeResponseError (forall body. Response body -> body
responseBody Response ByteString
rsp)

-- | Try to parses response as JSON, if failed, try to parse as like query string.
parseResponseFlexible ::
  FromJSON a =>
  BSL.ByteString ->
  Either TokenResponseError a
parseResponseFlexible :: forall a. FromJSON a => ByteString -> Either TokenResponseError a
parseResponseFlexible ByteString
r = case forall a. FromJSON a => ByteString -> Either String a
eitherDecode ByteString
r of
  Left String
_ -> forall a. FromJSON a => ByteString -> Either TokenResponseError a
parseResponseString ByteString
r
  Right a
x -> forall a b. b -> Either a b
Right a
x

-- | Parses the response that contains not JSON but a Query String
parseResponseString ::
  FromJSON a =>
  BSL.ByteString ->
  Either TokenResponseError a
parseResponseString :: forall a. FromJSON a => ByteString -> Either TokenResponseError a
parseResponseString ByteString
b = case ByteString -> Query
parseQuery forall a b. (a -> b) -> a -> b
$ ByteString -> ByteString
BSL.toStrict ByteString
b of
  [] -> forall a b. a -> Either a b
Left TokenResponseError
errorMessage
  Query
a -> case forall a. FromJSON a => Value -> Result a
fromJSON forall a b. (a -> b) -> a -> b
$ Query -> Value
queryToValue Query
a of
    Error String
_ -> forall a b. a -> Either a b
Left TokenResponseError
errorMessage
    Success a
x -> forall a b. b -> Either a b
Right a
x
  where
    queryToValue :: Query -> Value
queryToValue = Object -> Value
Object forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall v. [(Key, v)] -> KeyMap v
KeyMap.fromList forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a b. (a -> b) -> [a] -> [b]
map (ByteString, Maybe ByteString) -> (Key, Value)
paramToPair
    paramToPair :: (ByteString, Maybe ByteString) -> (Key, Value)
paramToPair (ByteString
k, Maybe ByteString
mv) = (Text -> Key
Key.fromText forall a b. (a -> b) -> a -> b
$ ByteString -> Text
T.decodeUtf8 ByteString
k, forall b a. b -> (a -> b) -> Maybe a -> b
maybe Value
Null (Text -> Value
String forall b c a. (b -> c) -> (a -> b) -> a -> c
. ByteString -> Text
T.decodeUtf8) Maybe ByteString
mv)
    errorMessage :: TokenResponseError
errorMessage = ByteString -> TokenResponseError
parseTokeResponseError ByteString
b

-- | Add Basic Authentication header using client_id and client_secret.
addBasicAuth :: OAuth2 -> Request -> Request
addBasicAuth :: OAuth2 -> Request -> Request
addBasicAuth OAuth2
oa =
  ByteString -> ByteString -> Request -> Request
applyBasicAuth
    (Text -> ByteString
T.encodeUtf8 forall a b. (a -> b) -> a -> b
$ OAuth2 -> Text
oauth2ClientId OAuth2
oa)
    (Text -> ByteString
T.encodeUtf8 forall a b. (a -> b) -> a -> b
$ OAuth2 -> Text
oauth2ClientSecret OAuth2
oa)

-- | Set several header values:
--   + userAgennt    : "hoauth2"
--   + accept        : "application/json"
addDefaultRequestHeaders :: Request -> Request
addDefaultRequestHeaders :: Request -> Request
addDefaultRequestHeaders Request
req =
  let headers :: [(HeaderName, ByteString)]
headers = [(HeaderName, ByteString)]
defaultRequestHeaders forall a. [a] -> [a] -> [a]
++ Request -> [(HeaderName, ByteString)]
requestHeaders Request
req
   in Request
req {requestHeaders :: [(HeaderName, ByteString)]
requestHeaders = [(HeaderName, ByteString)]
headers}

-- | Add Credential (client_id, client_secret) to the request post body.
clientSecretPost :: OAuth2 -> PostBody
clientSecretPost :: OAuth2 -> PostBody
clientSecretPost OAuth2
oa =
  [ (ByteString
"client_id", Text -> ByteString
T.encodeUtf8 forall a b. (a -> b) -> a -> b
$ OAuth2 -> Text
oauth2ClientId OAuth2
oa)
  , (ByteString
"client_secret", Text -> ByteString
T.encodeUtf8 forall a b. (a -> b) -> a -> b
$ OAuth2 -> Text
oauth2ClientSecret OAuth2
oa)
  ]