gonito/Foundation.hs

203 lines
7.2 KiB
Haskell

module Foundation where
import Database.Persist.Sql (ConnectionPool, runSqlPool)
import Import.NoFoundation
import Text.Hamlet (hamletFile)
import Yesod.Auth.BrowserId (authBrowserId)
import Yesod.Auth.Message (AuthMessage (InvalidLogin))
import qualified Yesod.Core.Unsafe as Unsafe
import Yesod.Core.Types (Logger)
import Yesod.Default.Util (addStaticContentExternal)
import Yesod.Fay
-- | The foundation datatype for your application. This can be a good place to
-- keep settings and values requiring initialization before your application
-- starts running, such as database connections. Every handler will have
-- access to the data present here.
data App = App
{ appSettings :: AppSettings
, appStatic :: Static -- ^ Settings for static file serving.
, appConnPool :: ConnectionPool -- ^ Database connection pool.
, appHttpManager :: Manager
, appLogger :: Logger
, appFayCommandHandler :: CommandHandler App
, jobs :: TVar (IntMap (TChan (Maybe Text)))
, nextJob :: TVar Int
}
instance HasHttpManager App where
getHttpManager = appHttpManager
-- This is where we define all of the routes in our application. For a full
-- explanation of the syntax, please see:
-- http://www.yesodweb.com/book/routing-and-handlers
--
-- Note that this is really half the story; in Application.hs, mkYesodDispatch
-- generates the rest of the code. Please see the linked documentation for an
-- explanation for this split.
--
-- This function also generates the following type synonyms:
-- type Handler = HandlerT App IO
-- type Widget = WidgetT App IO ()
mkYesodData "App" $(parseRoutesFile "config/routes")
mkMessage "App" "messages" "en"
-- | A convenient synonym for creating forms.
type Form x = Html -> MForm (HandlerT App IO) (FormResult x, Widget)
isTrustedAuthorized = do
mauth <- maybeAuth
case mauth of
Nothing -> return AuthenticationRequired
Just (Entity _ user)
| isTrusted user -> return Authorized
| otherwise -> return $ Unauthorized "???"
isTrusted :: User -> Bool
isTrusted user =
case userIdent user of
"ptlen@ceti.pl" -> True
"hexin1989@gmail.com" -> True
"romang@amu.edu.pl" -> True
"junczys@amu.edu.pl" -> True
"rafalj@amu.edu.pl" -> True
_ -> True
-- Please see the documentation for the Yesod typeclass. There are a number
-- of settings which can be configured by overriding methods here.
instance Yesod App where
-- Controls the base of generated URLs. For more information on modifying,
-- see: https://github.com/yesodweb/yesod/wiki/Overriding-approot
approot = ApprootMaster $ appRoot . appSettings
-- Store session data on the client in encrypted cookies,
-- default session idle timeout is 120 minutes
makeSessionBackend app = Just <$> defaultClientSessionBackend
120 -- timeout in minutes
((appVarDir $ appSettings app) </> "config/client_session_key.aes")
defaultLayout widget = do
master <- getYesod
mmsg <- getMessage
-- We break up the default layout into two components:
-- default-layout is the contents of the body tag, and
-- default-layout-wrapper is the entire page. Since the final
-- value passed to hamletToRepHtml cannot be a widget, this allows
-- you to use normal widget features in default-layout.
maybeUser <- maybeAuth
pc <- widgetToPageContent $ do
addStylesheet $ StaticR css_bootstrap_css
$(widgetFile "default-layout")
withUrlRenderer $(hamletFile "templates/default-layout-wrapper.hamlet")
-- The page to be redirected to when authentication is required.
authRoute _ = Just $ AuthR LoginR
-- Routes not requiring authentication.
isAuthorized (AuthR _) _ = return Authorized
isAuthorized FaviconR _ = return Authorized
isAuthorized RobotsR _ = return Authorized
isAuthorized HomeR _ = return Authorized
-- Default to Authorized for now.
isAuthorized _ _ = isTrustedAuthorized
-- This function creates static content files in the static folder
-- and names them based on a hash of their content. This allows
-- expiration dates to be set far in the future without worry of
-- users receiving stale content.
addStaticContent ext mime content = do
master <- getYesod
let staticDir = appStaticDir $ appSettings master
addStaticContentExternal
Right
genFileName
staticDir
(StaticR . flip StaticRoute [])
ext
mime
content
where
-- Generate a unique filename based on the content itself
genFileName lbs = "autogen-" ++ base64md5 lbs
-- What messages should be logged. The following includes all messages when
-- in development, and warnings and errors in production.
shouldLog app _source level =
appShouldLogAll (appSettings app)
|| level == LevelWarn
|| level == LevelError
makeLogger = return . appLogger
instance YesodJquery App
instance YesodFay App where
fayRoute = FaySiteR
yesodFayCommand render command = do
master <- getYesod
appFayCommandHandler master render command
-- How to run database actions.
instance YesodPersist App where
type YesodPersistBackend App = SqlBackend
runDB action = do
master <- getYesod
runSqlPool action $ appConnPool master
instance YesodPersistRunner App where
getDBRunner = defaultGetDBRunner appConnPool
instance YesodAuth App where
type AuthId App = UserId
-- Where to send a user after successful login
loginDest _ = HomeR
-- Where to send a user after logout
logoutDest _ = HomeR
-- Override the above two destinations when a Referer: header is present
redirectToReferer _ = True
authenticate creds = runDB $ do
x <- getBy $ UniqueUser $ credsIdent creds
Authenticated <$> case x of
Just (Entity uid _) -> return $ uid
Nothing ->
insert User
{ userIdent = credsIdent creds
, userPassword = Nothing
, userName = Nothing
, userIsAdmin = False
, userLocalId = Nothing
, userIsAnonymous = False
}
-- You can add other plugins like BrowserID, email or OAuth here
authPlugins _ = [authBrowserId def]
authHttpManager = getHttpManager
instance YesodAuthPersist App
-- This instance is required to use forms. You can modify renderMessage to
-- achieve customized and internationalized form validation messages.
instance RenderMessage App FormMessage where
renderMessage _ _ = defaultFormMessage
unsafeHandler :: App -> Handler a -> IO a
unsafeHandler = Unsafe.fakeHandlerGetLogger appLogger
-- Note: Some functionality previously present in the scaffolding has been
-- moved to documentation in the Wiki. Following are some hopefully helpful
-- links:
--
-- https://github.com/yesodweb/yesod/wiki/Sending-email
-- https://github.com/yesodweb/yesod/wiki/Serve-static-files-from-a-separate-domain
-- https://github.com/yesodweb/yesod/wiki/i18n-messages-in-the-scaffolding