d9c7f81ba4
Converted retrieveKeyFileCheap to a Maybe, to avoid needing to throw a exception when a remote doesn't support it.
134 lines
3.6 KiB
Haskell
134 lines
3.6 KiB
Haskell
{- Web remote.
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-
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- Copyright 2011 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU AGPL version 3 or higher.
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-}
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module Remote.Web (remote, getWebUrls) where
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import Annex.Common
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import Types.Remote
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import Remote.Helper.Messages
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import Remote.Helper.ExportImport
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import qualified Git
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import qualified Git.Construct
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import Annex.Content
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import Config.Cost
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import Config
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import Logs.Web
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import Annex.UUID
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import Utility.Metered
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import qualified Annex.Url as Url
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import Annex.YoutubeDl
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import Annex.SpecialRemote.Config
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remote :: RemoteType
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remote = RemoteType
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{ typename = "web"
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, enumerate = list
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, generate = gen
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, configParser = mkRemoteConfigParser []
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, setup = error "not supported"
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, exportSupported = exportUnsupported
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, importSupported = importUnsupported
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}
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-- There is only one web remote, and it always exists.
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-- (If the web should cease to exist, remove this module and redistribute
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-- a new release to the survivors by carrier pigeon.)
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list :: Bool -> Annex [Git.Repo]
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list _autoinit = do
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r <- liftIO $ Git.Construct.remoteNamed "web" (pure Git.Construct.fromUnknown)
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return [r]
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gen :: Git.Repo -> UUID -> RemoteConfig -> RemoteGitConfig -> RemoteStateHandle -> Annex (Maybe Remote)
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gen r _ rc gc rs = do
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c <- parsedRemoteConfig remote rc
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cst <- remoteCost gc expensiveRemoteCost
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return $ Just Remote
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{ uuid = webUUID
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, cost = cst
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, name = Git.repoDescribe r
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, storeKey = uploadKey
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, retrieveKeyFile = downloadKey
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, retrieveKeyFileCheap = Nothing
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-- HttpManagerRestricted is used here, so this is
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-- secure.
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, retrievalSecurityPolicy = RetrievalAllKeysSecure
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, removeKey = dropKey
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, lockContent = Nothing
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, checkPresent = checkKey
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, checkPresentCheap = False
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, exportActions = exportUnsupported
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, importActions = importUnsupported
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, whereisKey = Nothing
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, remoteFsck = Nothing
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, repairRepo = Nothing
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, config = c
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, gitconfig = gc
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, localpath = Nothing
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, getRepo = return r
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, readonly = True
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, appendonly = False
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, availability = GloballyAvailable
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, remotetype = remote
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, mkUnavailable = return Nothing
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, getInfo = return []
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, claimUrl = Nothing -- implicitly claims all urls
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, checkUrl = Nothing
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, remoteStateHandle = rs
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}
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downloadKey :: Key -> AssociatedFile -> FilePath -> MeterUpdate -> Annex Verification
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downloadKey key _af dest p = do
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get =<< getWebUrls key
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return UnVerified
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where
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get [] = giveup "no known url"
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get urls = do
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r <- untilTrue urls $ \u -> do
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let (u', downloader) = getDownloader u
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case downloader of
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YoutubeDownloader -> do
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showOutput
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youtubeDlTo key u' dest
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_ -> Url.withUrlOptions $ downloadUrl key p [u'] dest
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unless r $
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giveup "download failed"
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uploadKey :: Key -> AssociatedFile -> MeterUpdate -> Annex ()
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uploadKey _ _ _ = giveup "upload to web not supported"
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dropKey :: Key -> Annex Bool
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dropKey k = do
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mapM_ (setUrlMissing k) =<< getWebUrls k
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return True
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checkKey :: Key -> Annex Bool
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checkKey key = do
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us <- getWebUrls key
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if null us
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then return False
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else either giveup return =<< checkKey' key us
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checkKey' :: Key -> [URLString] -> Annex (Either String Bool)
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checkKey' key us = firsthit us (Right False) $ \u -> do
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let (u', downloader) = getDownloader u
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showChecking u'
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case downloader of
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YoutubeDownloader -> youtubeDlCheck u'
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_ -> catchMsgIO $
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Url.withUrlOptions $ Url.checkBoth u' (fromKey keySize key)
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where
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firsthit [] miss _ = return miss
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firsthit (u:rest) _ a = do
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r <- a u
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case r of
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Right True -> return r
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_ -> firsthit rest r a
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getWebUrls :: Key -> Annex [URLString]
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getWebUrls key = filter supported <$> getUrls key
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where
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supported u = snd (getDownloader u)
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`elem` [WebDownloader, YoutubeDownloader]
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