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{-
Copyright (C) 2009 John MacFarlane <jgm@berkeley.edu>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-}
{- | Functions for embedding a gitit wiki into a Happstack application.
-}
module Network.Gitit ( initializeGititState
, getDefaultConfig
, Config(..)
, User(..)
, Cache(..)
, emptyCache
, loadPlugin
, wikiHandler
, readMimeTypesFile
, createRepoIfMissing
, createTemplateIfMissing
, createStaticIfMissing
)
where
import Network.Gitit.Types
import Network.Gitit.Framework
import Network.Gitit.State
import Network.Gitit.Server
import Network.Gitit.Plugins (loadPlugin)
import Network.Gitit.Handlers
import Network.Gitit.Initialize
import Network.Gitit.Config (readMimeTypesFile, getDefaultConfig)
import Control.Monad.Reader
import System.Directory
import System.FilePath
import Prelude hiding (readFile)
import System.IO.UTF8
import Paths_gitit
import qualified Text.StringTemplate as T
wikiHandler :: Config -> ServerPart Response
wikiHandler conf = do
let staticHandler = dir "_static" $
withExpiresHeaders $ fileServe [] $ staticDir conf
let handlers = [ debugHandler | debugMode conf] ++
case authenticationMethod conf of
FormAuth -> authHandler : wikiHandlers
_ -> wikiHandlers
let fs = filestoreFromConfig conf
templateText <- liftIO $ do
templateExists <- doesFileExist $ templateFile conf
if templateExists
then readFile $ templateFile conf
else getDataFileName ("data" </> "template.html") >>= readFile
let templ = T.newSTMP templateText
let ws = WikiState { wikiConfig = conf, wikiFileStore = fs, wikiTemplate = templ }
-- TODO - rearrange so handleAny doesn't get compressed
staticHandler `mplus` (mapServerPartT (unpackReaderT ws) $
if compressResponses conf
then compressedResponseFilter >> msum handlers
else msum handlers)
wikiHandlers :: [Handler]
wikiHandlers =
[ dir "_activity" showActivity
, dir "_go" goToPage
, dir "_search" searchResults
, dir "_upload" $ methodOnly GET >> ifLoggedIn uploadForm loginUserForm
, dir "_upload" $ methodOnly POST >> ifLoggedIn uploadFile loginUserForm
, dir "_random" $ methodOnly GET >> randomPage
, dir "_index" indexPage
, guardCommand "showraw" >> msum
[ showRawPage
, guardPath isSourceCode >> showFileAsText ]
, guardCommand "history" >> msum
[ showPageHistory
, guardPath isSourceCode >> showFileHistory ]
, guardCommand "edit" >>
(unlessNoEdit (ifLoggedIn editPage loginUserForm) showPage)
, guardCommand "diff" >> msum
[ showPageDiff
, guardPath isSourceCode >> showFileDiff ]
, guardCommand "export" >> exportPage
, guardCommand "cancel" >> showPage
, guardCommand "discuss" >> discussPage
, guardCommand "update" >> methodOnly POST >>
unlessNoEdit (ifLoggedIn updatePage loginUserForm) showPage
, guardCommand "delete" >> msum
[ methodOnly GET >>
unlessNoDelete (ifLoggedIn confirmDelete loginUserForm) showPage
, methodOnly POST >>
unlessNoDelete (ifLoggedIn deletePage loginUserForm) showPage ]
, guardIndex >> indexPage
, guardPath isPreview >> preview
, showPage
, guardPath isSourceCode >> showHighlightedSource
, handleAny
, createPage
]
unpackReaderT:: (Monad m)
=> c
-> (ReaderT c m) (Maybe ((Either Response a), FilterFun Response))
-> m (Maybe ((Either Response a), FilterFun Response))
unpackReaderT st handler = runReaderT handler st
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