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module Foundation where
import Prelude
import Yesod
import Yesod.Static
import Yesod.Auth
import Yesod.Auth.BrowserId
import Yesod.Default.Config
import Yesod.Default.Util (addStaticContentExternal)
import Network.HTTP.Client.Conduit (Manager, HasHttpManager (getHttpManager))
import qualified Settings
import Settings.Development (development)
import qualified Database.Persist
import Database.Persist.Sql (SqlPersistT)
import Settings.StaticFiles
import Settings (widgetFile, Extra (..))
import Model
import Text.Jasmine (minifym)
import Text.Hamlet (hamletFile)
import Yesod.Core.Types (Logger)
import Data.Text (Text)
-- | The site argument 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
{ settings :: AppConfig DefaultEnv Extra
, getStatic :: Static -- ^ Settings for static file serving.
, connPool :: Database.Persist.PersistConfigPool Settings.PersistConf -- ^ Database connection pool.
, httpManager :: Manager
, persistConfig :: Settings.PersistConf
, appLogger :: Logger
}
instance HasHttpManager App where
getHttpManager = httpManager
-- Set up i18n messages. See the message folder.
mkMessage "App" "messages" "en"
-- 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.
mkYesodData "App" $(parseRoutesFile "config/routes")
type Form x = Html -> MForm (HandlerT App IO) (FormResult x, Widget)
-- 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
approot = ApprootMaster $ appRoot . settings
-- Store session data on the client in encrypted cookies,
-- default session idle timeout is 120 minutes
makeSessionBackend _ = fmap Just $ defaultClientSessionBackend
120 -- timeout in minutes
"config/client_session_key.aes"
defaultLayout widget = do
master <- getYesod
mmsg <- getMessage
muser <- maybeAuthId
-- 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.
pc <- widgetToPageContent $ do
$(combineStylesheets 'StaticR
[ css_normalize_css
, css_bootstrap_css
])
$(widgetFile "default-layout")
giveUrlRenderer $(hamletFile "templates/default-layout-wrapper.hamlet")
-- This is done to provide an optimization for serving static files from
-- a separate domain. Please see the staticRoot setting in Settings.hs
urlRenderOverride y (StaticR s) =
Just $ uncurry (joinPath y (Settings.staticRoot $ settings y)) $ renderRoute s
urlRenderOverride _ _ = Nothing
-- The page to be redirected to when authentication is required.
authRoute _ = Just $ AuthR LoginR
-- Routes not requiring authenitcation.
isAuthorized (AuthR _) _ = return Authorized
isAuthorized FaviconR _ = return Authorized
isAuthorized RobotsR _ = return Authorized
-- Default to Authorized for now.
isAuthorized _ _ = return Authorized
-- 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 =
addStaticContentExternal minifym genFileName Settings.staticDir (StaticR . flip StaticRoute [])
where
-- Generate a unique filename based on the content itself
genFileName lbs
| development = "autogen-" ++ base64md5 lbs
| otherwise = base64md5 lbs
-- Place Javascript at bottom of the body tag so the rest of the page loads first
jsLoader _ = BottomOfBody
-- What messages should be logged. The following includes all messages when
-- in development, and warnings and errors in production.
shouldLog _ _source level =
development || level == LevelWarn || level == LevelError
makeLogger = return . appLogger
-- How to run database actions.
instance YesodPersist App where
type YesodPersistBackend App = SqlPersistT
runDB = defaultRunDB persistConfig connPool
instance YesodPersistRunner App where
getDBRunner = defaultGetDBRunner connPool
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
getAuthId creds = runDB $ do
x <- getBy $ UniqueUser $ credsIdent creds
case x of
Just (Entity uid _) -> return $ Just uid
Nothing -> do
fmap Just $ insert User
{ userIdent = credsIdent creds
, userPassword = Nothing
}
-- You can add other plugins like BrowserID, email or OAuth here
authPlugins _ = [authBrowserId def]
authHttpManager = httpManager
-- 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
-- | Get the 'Extra' value, used to hold data from the settings.yml file.
getExtra :: Handler Extra
getExtra = fmap (appExtra . settings) getYesod
-- Note: previous versions of the scaffolding included a deliver function to
-- send emails. Unfortunately, there are too many different options for us to
-- give a reasonable default. Instead, the information is available on the
-- wiki:
--
-- https://github.com/yesodweb/yesod/wiki/Sending-email