git-annex/Assistant/Threads/WebApp.hs

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{- git-annex assistant webapp thread
-
- Copyright 2012 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
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{-# LANGUAGE TypeFamilies, QuasiQuotes, MultiParamTypeClasses, TemplateHaskell, OverloadedStrings, RankNTypes, CPP #-}
{-# OPTIONS_GHC -fno-warn-orphans #-}
module Assistant.Threads.WebApp where
import Assistant.Common
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import Assistant.WebApp
import Assistant.WebApp.Types
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import Assistant.WebApp.DashBoard
import Assistant.WebApp.SideBar
import Assistant.WebApp.Notifications
import Assistant.WebApp.Configurators
import Assistant.WebApp.Configurators.Edit
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import Assistant.WebApp.Configurators.Local
import Assistant.WebApp.Configurators.Ssh
import Assistant.WebApp.Configurators.Pairing
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import Assistant.WebApp.Configurators.AWS
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#ifdef WITH_WEBDAV
import Assistant.WebApp.Configurators.WebDAV
#endif
import Assistant.WebApp.Configurators.XMPP
import Assistant.WebApp.Documentation
import Assistant.WebApp.OtherRepos
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import Assistant.Types.ThreadedMonad
import Utility.WebApp
import Utility.FileMode
import Utility.TempFile
import Git
import Yesod
import Yesod.Static
import Network.Socket (PortNumber)
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import Data.Text (pack, unpack)
thisThread :: String
thisThread = "WebApp"
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mkYesodDispatch "WebApp" $(parseRoutesFile "Assistant/WebApp/routes")
type Url = String
webAppThread
:: AssistantData
-> UrlRenderer
-> Bool
-> Maybe (IO String)
-> Maybe (Url -> FilePath -> IO ())
-> NamedThread
webAppThread assistantdata urlrenderer noannex postfirstrun onstartup = thread $ liftIO $ do
webapp <- WebApp
<$> pure assistantdata
<*> (pack <$> genRandomToken)
<*> getreldir
<*> pure $(embed "static")
<*> newWebAppState
<*> pure postfirstrun
<*> pure noannex
setUrlRenderer urlrenderer $ yesodRender webapp (pack "")
app <- toWaiAppPlain webapp
app' <- ifM debugEnabled
( return $ httpDebugLogger app
, return app
)
runWebApp app' $ \port -> if noannex
then withTempFile "webapp.html" $ \tmpfile _ ->
go port webapp tmpfile Nothing
else do
let st = threadState assistantdata
htmlshim <- runThreadState st $ fromRepo gitAnnexHtmlShim
urlfile <- runThreadState st $ fromRepo gitAnnexUrlFile
go port webapp htmlshim (Just urlfile)
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where
thread = NamedThread thisThread
getreldir
| noannex = return Nothing
| otherwise = Just <$>
(relHome =<< absPath
=<< runThreadState (threadState assistantdata) (fromRepo repoPath))
go port webapp htmlshim urlfile = do
let url = myUrl webapp port
maybe noop (`writeFile` url) urlfile
writeHtmlShim url htmlshim
maybe noop (\a -> a url htmlshim) onstartup
{- Creates a html shim file that's used to redirect into the webapp,
- to avoid exposing the secretToken when launching the web browser. -}
writeHtmlShim :: String -> FilePath -> IO ()
writeHtmlShim url file = viaTmp go file $ genHtmlShim url
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where
go tmpfile content = do
h <- openFile tmpfile WriteMode
modifyFileMode tmpfile $ removeModes [groupReadMode, otherReadMode]
hPutStr h content
hClose h
{- TODO: generate this static file using Yesod. -}
genHtmlShim :: String -> String
genHtmlShim url = unlines
[ "<html>"
, "<head>"
, "<title>Starting webapp...</title>"
, "<meta http-equiv=\"refresh\" content=\"0; URL="++url++"\">"
, "<body>"
, "<p>"
, "<a href=\"" ++ url ++ "\">Starting webapp...</a>"
, "</p>"
, "</body>"
, "</html>"
]
myUrl :: WebApp -> PortNumber -> Url
myUrl webapp port = unpack $ yesodRender webapp urlbase HomeR []
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where
urlbase = pack $ "http://localhost:" ++ show port