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|
{- Web remotes.
-
- Copyright 2011 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
{-# LANGUAGE CPP #-}
module Remote.Web (remote) where
import Common.Annex
import Types.Remote
import qualified Git
import qualified Git.Construct
import Annex.Content
import Config.Cost
import Logs.Web
import Types.Key
import Utility.Metered
import qualified Annex.Url as Url
#ifdef WITH_QUVI
import Annex.Quvi
import qualified Utility.Quvi as Quvi
#endif
remote :: RemoteType
remote = RemoteType {
typename = "web",
enumerate = list,
generate = gen,
setup = error "not supported"
}
-- There is only one web remote, and it always exists.
-- (If the web should cease to exist, remove this module and redistribute
-- a new release to the survivors by carrier pigeon.)
list :: Annex [Git.Repo]
list = do
r <- liftIO $ Git.Construct.remoteNamed "web" Git.Construct.fromUnknown
return [r]
gen :: Git.Repo -> UUID -> RemoteConfig -> RemoteGitConfig -> Annex (Maybe Remote)
gen r _ c gc =
return $ Just Remote {
uuid = webUUID,
cost = expensiveRemoteCost,
name = Git.repoDescribe r,
storeKey = uploadKey,
retrieveKeyFile = downloadKey,
retrieveKeyFileCheap = downloadKeyCheap,
removeKey = dropKey,
checkPresent = checkKey,
checkPresentCheap = False,
whereisKey = Just getUrls,
remoteFsck = Nothing,
repairRepo = Nothing,
config = c,
gitconfig = gc,
localpath = Nothing,
repo = r,
readonly = True,
availability = GloballyAvailable,
remotetype = remote,
mkUnavailable = return Nothing
}
downloadKey :: Key -> AssociatedFile -> FilePath -> MeterUpdate -> Annex Bool
downloadKey key _file dest _p = get =<< getUrls key
where
get [] = do
warning "no known url"
return False
get urls = do
showOutput -- make way for download progress bar
untilTrue urls $ \u -> do
let (u', downloader) = getDownloader u
case downloader of
QuviDownloader -> do
#ifdef WITH_QUVI
flip downloadUrl dest
=<< withQuviOptions Quvi.queryLinks [Quvi.httponly, Quvi.quiet] u'
#else
warning "quvi support needed for this url"
return False
#endif
DefaultDownloader -> downloadUrl [u'] dest
downloadKeyCheap :: Key -> FilePath -> Annex Bool
downloadKeyCheap _ _ = return False
uploadKey :: Key -> AssociatedFile -> MeterUpdate -> Annex Bool
uploadKey _ _ _ = do
warning "upload to web not supported"
return False
dropKey :: Key -> Annex Bool
dropKey k = do
mapM_ (setUrlMissing k) =<< getUrls k
return True
checkKey :: Key -> Annex Bool
checkKey key = do
us <- getUrls key
if null us
then return False
else either error return =<< checkKey' key us
checkKey' :: Key -> [URLString] -> Annex (Either String Bool)
checkKey' key us = firsthit us (Right False) $ \u -> do
let (u', downloader) = getDownloader u
showAction $ "checking " ++ u'
case downloader of
QuviDownloader ->
#ifdef WITH_QUVI
Right <$> withQuviOptions Quvi.check [Quvi.httponly, Quvi.quiet] u'
#else
return $ Left "quvi support needed for this url"
#endif
DefaultDownloader -> do
Url.withUrlOptions $ catchMsgIO .
Url.checkBoth u' (keySize key)
where
firsthit [] miss _ = return miss
firsthit (u:rest) _ a = do
r <- a u
case r of
Right _ -> return r
Left _ -> firsthit rest r a
|
