0f7143d226
Not yet implemented is recording hashes on download from web and verifying hashes. addurl --verifiable option added with -V short option because I expect a lot of people will want to use this. It seems likely that --verifiable will become the default eventually, and possibly rather soon. While old git-annex versions don't support VURL, that doesn't prevent using them with keys that use VURL. Of course, they won't verify the content on transfer, and fsck will warn that it doesn't know about VURL. So there's not much problem with starting to use VURL even when interoperating with old versions. Sponsored-by: Joshua Antonishen on Patreon
610 lines
23 KiB
Haskell
610 lines
23 KiB
Haskell
{- git-annex command
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-
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- Copyright 2011-2024 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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{-# LANGUAGE OverloadedStrings #-}
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module Command.AddUrl where
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import Command
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import Backend
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import qualified Annex
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import qualified Annex.Url as Url
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import qualified Backend.URL
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import qualified Remote
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import qualified Types.Remote as Remote
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import qualified Command.Add
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import Annex.Content
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import Annex.Ingest
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import Annex.CheckIgnore
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import Annex.Perms
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import Annex.UUID
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import Annex.WorkTree
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import Annex.YoutubeDl
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import Annex.UntrustedFilePath
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import Logs.Web
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import Types.KeySource
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import Types.UrlContents
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import Annex.FileMatcher
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import Logs.Location
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import Utility.Metered
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import Utility.HtmlDetect
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import Utility.Path.Max
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import Utility.Url.Parse
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import qualified Utility.RawFilePath as R
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import qualified Annex.Transfer as Transfer
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import Network.URI
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import qualified System.FilePath.ByteString as P
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cmd :: Command
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cmd = notBareRepo $ withAnnexOptions
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[ jobsOption
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, jsonOptions
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, jsonProgressOption
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, backendOption
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] $
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command "addurl" SectionCommon "add urls to annex"
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(paramRepeating paramUrl) (seek <$$> optParser)
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data AddUrlOptions = AddUrlOptions
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{ addUrls :: CmdParams
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, pathdepthOption :: Maybe Int
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, prefixOption :: Maybe String
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, suffixOption :: Maybe String
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, downloadOptions :: DownloadOptions
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, batchOption :: BatchMode
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, batchFilesOption :: Bool
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}
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data DownloadOptions = DownloadOptions
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{ relaxedOption :: Bool
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, verifiableOption :: Bool
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, rawOption :: Bool
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, noRawOption :: Bool
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, rawExceptOption :: Maybe (DeferredParse Remote)
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, fileOption :: Maybe FilePath
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, preserveFilenameOption :: Bool
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, checkGitIgnoreOption :: CheckGitIgnore
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}
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optParser :: CmdParamsDesc -> Parser AddUrlOptions
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optParser desc = AddUrlOptions
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<$> cmdParams desc
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<*> optional (option auto
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( long "pathdepth" <> metavar paramNumber
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<> help "number of url path components to use in filename"
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))
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<*> optional (strOption
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( long "prefix" <> metavar paramValue
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<> help "add a prefix to the filename"
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))
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<*> optional (strOption
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( long "suffix" <> metavar paramValue
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<> help "add a suffix to the filename"
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))
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<*> parseDownloadOptions True
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<*> parseBatchOption False
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<*> switch
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( long "with-files"
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<> help "parse batch mode lines of the form \"$url $file\""
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)
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parseDownloadOptions :: Bool -> Parser DownloadOptions
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parseDownloadOptions withfileoptions = DownloadOptions
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<$> switch
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( long "relaxed"
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<> help "accept whatever content is downloaded from web even if it changes"
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)
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<*> switch
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( long "verifiable"
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<> short 'V'
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<> help "improve later verification of --fast or --relaxed content"
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)
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<*> switch
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( long "raw"
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<> help "disable special handling for torrents, youtube-dl, etc"
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)
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<*> switch
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( long "no-raw"
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<> help "prevent downloading raw url content, must use special handling"
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)
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<*> optional
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(mkParseRemoteOption <$> strOption
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( long "raw-except" <> metavar paramRemote
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<> help "disable special handling except by this remote"
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<> completeRemotes
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)
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)
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<*> (if withfileoptions
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then optional (strOption
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( long "file" <> metavar paramFile
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<> help "specify what file the url is added to"
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))
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else pure Nothing)
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<*> (if withfileoptions
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then switch
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( long "preserve-filename"
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<> help "use filename provided by server as-is"
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)
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else pure False)
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<*> Command.Add.checkGitIgnoreSwitch
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seek :: AddUrlOptions -> CommandSeek
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seek o = startConcurrency commandStages $ do
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addunlockedmatcher <- addUnlockedMatcher
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let go (si, (o', u)) = do
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r <- checkClaimingUrl (downloadOptions o) u
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if Remote.uuid r == webUUID || rawOption (downloadOptions o')
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then void $ commandAction $
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startWeb addunlockedmatcher o' si u
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else checkUrl addunlockedmatcher r o' si u
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case batchOption o of
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Batch fmt -> batchOnly Nothing (addUrls o) $
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batchInput fmt (pure . parseBatchInput o) go
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NoBatch -> forM_ (addUrls o) (\u -> go (SeekInput [u], (o, u)))
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checkClaimingUrl :: DownloadOptions -> URLString -> Annex Remote
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checkClaimingUrl o u = do
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allowedremote <- case rawExceptOption o of
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Nothing -> pure (const True)
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Just f -> (==) <$> getParsed f
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Remote.claimingUrl' allowedremote u
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parseBatchInput :: AddUrlOptions -> String -> Either String (AddUrlOptions, URLString)
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parseBatchInput o s
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| batchFilesOption o =
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let (u, f) = separate (== ' ') s
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in if null u || null f
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then Left ("parsed empty url or filename in input: " ++ s)
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else Right (o { downloadOptions = (downloadOptions o) { fileOption = Just f } }, u)
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| otherwise = Right (o, s)
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checkUrl :: AddUnlockedMatcher -> Remote -> AddUrlOptions -> SeekInput -> URLString -> Annex ()
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checkUrl addunlockedmatcher r o si u = do
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pathmax <- liftIO $ fileNameLengthLimit "."
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let deffile = fromMaybe (urlString2file u (pathdepthOption o) pathmax) (fileOption (downloadOptions o))
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go deffile =<< maybe
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(giveup $ "unable to checkUrl of " ++ Remote.name r)
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(tryNonAsync . flip id u)
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(Remote.checkUrl r)
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where
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go _ (Left e) = void $ commandAction $ startingAddUrl si u o $ do
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warning (UnquotedString (show e))
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next $ return False
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go deffile (Right (UrlContents sz mf)) = do
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f <- maybe (pure deffile) (sanitizeOrPreserveFilePath o) mf
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let f' = adjustFile o (fromMaybe f (fileOption (downloadOptions o)))
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void $ commandAction $ startRemote addunlockedmatcher r o si f' u sz
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go deffile (Right (UrlMulti l)) = case fileOption (downloadOptions o) of
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Nothing ->
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forM_ l $ \(u', sz, f) -> do
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f' <- sanitizeOrPreserveFilePath o f
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let f'' = adjustFile o (deffile </> f')
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void $ commandAction $ startRemote addunlockedmatcher r o si f'' u' sz
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Just f -> case l of
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[] -> noop
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((u',sz,_):[]) -> do
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let f' = adjustFile o f
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void $ commandAction $ startRemote addunlockedmatcher r o si f' u' sz
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_ -> giveup $ unwords
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[ "That url contains multiple files according to the"
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, Remote.name r
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, " remote; cannot add it to a single file."
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]
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startRemote :: AddUnlockedMatcher -> Remote -> AddUrlOptions -> SeekInput -> FilePath -> URLString -> Maybe Integer -> CommandStart
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startRemote addunlockedmatcher r o si file uri sz = do
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pathmax <- liftIO $ fileNameLengthLimit "."
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let file' = joinPath $ map (truncateFilePath pathmax) $
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splitDirectories file
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startingAddUrl si uri o $ do
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showNote $ UnquotedString $ "from " ++ Remote.name r
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showDestinationFile (toRawFilePath file')
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performRemote addunlockedmatcher r o uri (toRawFilePath file') sz
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performRemote :: AddUnlockedMatcher -> Remote -> AddUrlOptions -> URLString -> RawFilePath -> Maybe Integer -> CommandPerform
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performRemote addunlockedmatcher r o uri file sz = lookupKey file >>= \case
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Just k -> adduri k
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Nothing -> geturi
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where
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loguri = setDownloader uri OtherDownloader
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adduri = addUrlChecked o loguri file (Remote.uuid r) checkexistssize
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checkexistssize key = return $ Just $ case sz of
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Nothing -> (True, True, loguri)
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Just n -> (True, n == fromMaybe n (fromKey keySize key), loguri)
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geturi = next $ isJust <$> downloadRemoteFile addunlockedmatcher r (downloadOptions o) uri file sz
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downloadRemoteFile :: AddUnlockedMatcher -> Remote -> DownloadOptions -> URLString -> RawFilePath -> Maybe Integer -> Annex (Maybe Key)
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downloadRemoteFile addunlockedmatcher r o uri file sz = checkCanAdd o file $ \canadd -> do
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let urlkey = Backend.URL.fromUrl uri sz (verifiableOption o)
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createWorkTreeDirectory (parentDir file)
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ifM (Annex.getRead Annex.fast <||> pure (relaxedOption o))
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( do
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addWorkTree canadd addunlockedmatcher (Remote.uuid r) loguri file urlkey Nothing
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return (Just urlkey)
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, do
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-- Set temporary url for the urlkey
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-- so that the remote knows what url it
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-- should use to download it.
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setTempUrl urlkey loguri
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let downloader = \dest p ->
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fst <$> Remote.verifiedAction
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(Remote.retrieveKeyFile r urlkey af dest p (RemoteVerify r))
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ret <- downloadWith canadd addunlockedmatcher downloader urlkey (Remote.uuid r) loguri file
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removeTempUrl urlkey
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return ret
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)
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where
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loguri = setDownloader uri OtherDownloader
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af = AssociatedFile (Just file)
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startWeb :: AddUnlockedMatcher -> AddUrlOptions -> SeekInput -> URLString -> CommandStart
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startWeb addunlockedmatcher o si urlstring = go $ fromMaybe bad $ parseURIPortable urlstring
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where
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bad = fromMaybe (giveup $ "bad url " ++ urlstring) $
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Url.parseURIRelaxed $ urlstring
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go url = startingAddUrl si urlstring o $
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if relaxedOption (downloadOptions o)
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then go' url Url.assumeUrlExists
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else Url.withUrlOptions (Url.getUrlInfo urlstring) >>= \case
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Right urlinfo -> go' url urlinfo
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Left err -> do
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warning (UnquotedString err)
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next $ return False
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go' url urlinfo = do
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pathmax <- liftIO $ fileNameLengthLimit "."
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file <- adjustFile o <$> case fileOption (downloadOptions o) of
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Just f -> pure f
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Nothing -> case Url.urlSuggestedFile urlinfo of
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Just sf -> do
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f <- sanitizeOrPreserveFilePath o sf
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if preserveFilenameOption (downloadOptions o)
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then pure f
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else ifM (liftIO $ doesFileExist f <||> doesDirectoryExist f)
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( pure $ url2file url (pathdepthOption o) pathmax
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, pure f
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)
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_ -> pure $ url2file url (pathdepthOption o) pathmax
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performWeb addunlockedmatcher o urlstring (toRawFilePath file) urlinfo
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sanitizeOrPreserveFilePath :: AddUrlOptions -> FilePath -> Annex FilePath
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sanitizeOrPreserveFilePath o f
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| preserveFilenameOption (downloadOptions o) && not (null f) = do
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checkPreserveFileNameSecurity f
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return f
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| otherwise = do
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pathmax <- liftIO $ fileNameLengthLimit "."
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return $ truncateFilePath pathmax $ sanitizeFilePath f
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-- sanitizeFilePath avoids all these security problems
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-- (and probably others, but at least this catches the most egrarious ones).
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checkPreserveFileNameSecurity :: FilePath -> Annex ()
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checkPreserveFileNameSecurity f = do
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checksecurity controlCharacterInFilePath "control character"
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checksecurity pathTraversalInFilePath "path traversal"
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checksecurity gitDirectoryInFilePath "contains a .git directory"
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where
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checksecurity p d = when (p f) $ do
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qp <- coreQuotePath <$> Annex.getGitConfig
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giveup $ decodeBS $ quote qp $
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"--preserve-filename was used, but the filename ("
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<> QuotedPath (toRawFilePath f)
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<> ") has a security problem ("
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<> d
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<> "), not adding."
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performWeb :: AddUnlockedMatcher -> AddUrlOptions -> URLString -> RawFilePath -> Url.UrlInfo -> CommandPerform
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performWeb addunlockedmatcher o url file urlinfo = lookupKey file >>= \case
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Just k -> addurl k
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Nothing -> geturl
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where
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geturl = next $ isJust <$> addUrlFile addunlockedmatcher (downloadOptions o) url urlinfo file
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addurl = addUrlChecked o url file webUUID $ \k ->
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ifM (useYoutubeDl (downloadOptions o) <&&> youtubeDlSupported url)
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( return (Just (True, True, setDownloader url YoutubeDownloader))
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, checkRaw Nothing (downloadOptions o) (pure Nothing) $
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return (Just (Url.urlExists urlinfo, Url.urlSize urlinfo == fromKey keySize k, url))
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)
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{- Check that the url exists, and has the same size as the key,
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- and add it as an url to the key. -}
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addUrlChecked :: AddUrlOptions -> URLString -> RawFilePath -> UUID -> (Key -> Annex (Maybe (Bool, Bool, URLString))) -> Key -> CommandPerform
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addUrlChecked o url file u checkexistssize key =
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ifM ((elem url <$> getUrls key) <&&> (elem u <$> loggedLocations key))
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( do
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showDestinationFile file
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next $ return True
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, checkexistssize key >>= \case
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Just (exists, samesize, url')
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| exists && (samesize || relaxedOption (downloadOptions o)) -> do
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setUrlPresent key url'
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logChange key u InfoPresent
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next $ return True
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| otherwise -> do
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warning $ UnquotedString $ "while adding a new url to an already annexed file, " ++ if exists
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then "url does not have expected file size (use --relaxed to bypass this check) " ++ url
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else "failed to verify url exists: " ++ url
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stop
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Nothing -> stop
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)
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{- Downloads an url (except in fast or relaxed mode) and adds it to the
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- repository, normally at the specified FilePath.
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- But, if youtube-dl supports the url, it will be written to a
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- different file, based on the title of the media. Unless the user
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- specified fileOption, which then forces using the FilePath.
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-}
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addUrlFile :: AddUnlockedMatcher -> DownloadOptions -> URLString -> Url.UrlInfo -> RawFilePath -> Annex (Maybe Key)
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addUrlFile addunlockedmatcher o url urlinfo file =
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ifM (Annex.getRead Annex.fast <||> pure (relaxedOption o))
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( nodownloadWeb addunlockedmatcher o url urlinfo file
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, downloadWeb addunlockedmatcher o url urlinfo file
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)
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downloadWeb :: AddUnlockedMatcher -> DownloadOptions -> URLString -> Url.UrlInfo -> RawFilePath -> Annex (Maybe Key)
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downloadWeb addunlockedmatcher o url urlinfo file =
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go =<< downloadWith' downloader urlkey webUUID url file
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where
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urlkey = addSizeUrlKey urlinfo $ Backend.URL.fromUrl url Nothing (verifiableOption o)
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downloader f p = Url.withUrlOptions $ downloadUrl False urlkey p Nothing [url] f
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go Nothing = return Nothing
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go (Just (tmp, backend)) = ifM (useYoutubeDl o <&&> liftIO (isHtmlFile (fromRawFilePath tmp)))
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( tryyoutubedl tmp backend
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, normalfinish tmp backend
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)
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normalfinish tmp backend = checkCanAdd o file $ \canadd -> do
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showDestinationFile file
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createWorkTreeDirectory (parentDir file)
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Just <$> finishDownloadWith canadd addunlockedmatcher tmp backend webUUID url file
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-- Ask youtube-dl what filename it will download first,
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-- so it's only used when the file contains embedded media.
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tryyoutubedl tmp backend = youtubeDlFileNameHtmlOnly url >>= \case
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Right mediafile -> do
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liftIO $ liftIO $ removeWhenExistsWith R.removeLink tmp
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let f = youtubeDlDestFile o file (toRawFilePath mediafile)
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lookupKey f >>= \case
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Just k -> alreadyannexed f k
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Nothing -> dl f
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Left err -> checkRaw (Just err) o (pure Nothing) (normalfinish tmp backend)
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where
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dl dest = withTmpWorkDir mediakey $ \workdir -> do
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let cleanuptmp = pruneTmpWorkDirBefore tmp (liftIO . removeWhenExistsWith R.removeLink)
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dlcmd <- youtubeDlCommand
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showNote ("using " <> UnquotedString dlcmd)
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Transfer.notifyTransfer Transfer.Download url $
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Transfer.download' webUUID mediakey (AssociatedFile Nothing) Nothing Transfer.noRetry $ \p -> do
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showDestinationFile dest
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youtubeDl url (fromRawFilePath workdir) p >>= \case
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Right (Just mediafile) -> do
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cleanuptmp
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checkCanAdd o dest $ \canadd -> do
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addWorkTree canadd addunlockedmatcher webUUID mediaurl dest mediakey (Just (toRawFilePath mediafile))
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return $ Just mediakey
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Left msg -> do
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cleanuptmp
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warning (UnquotedString msg)
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return Nothing
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Right Nothing -> do
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cleanuptmp
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warning (UnquotedString dlcmd <> " did not download anything")
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return Nothing
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mediaurl = setDownloader url YoutubeDownloader
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mediakey = Backend.URL.fromUrl mediaurl Nothing (verifiableOption o)
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-- Does the already annexed file have the mediaurl
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-- as an url? If so nothing to do.
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alreadyannexed dest k = do
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us <- getUrls k
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if mediaurl `elem` us
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then return (Just k)
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else do
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warning $ QuotedPath dest <> " already exists; not overwriting"
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return Nothing
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checkRaw :: (Maybe String) -> DownloadOptions -> Annex a -> Annex a -> Annex a
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checkRaw failreason o f a
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| noRawOption o = do
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warning $ UnquotedString $ "Unable to use youtube-dl or a special remote and --no-raw was specified" ++
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case failreason of
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Just msg -> ": " ++ msg
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Nothing -> ""
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f
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| otherwise = a
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useYoutubeDl :: DownloadOptions -> Annex Bool
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useYoutubeDl o
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| rawOption o = pure False
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| otherwise = case rawExceptOption o of
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Nothing -> pure True
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Just f -> do
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remote <- getParsed f
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pure (Remote.uuid remote == webUUID)
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{- The destination file is not known at start time unless the user provided
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- a filename. It's not displayed then for output consistency,
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- but is added to the json when available. -}
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startingAddUrl :: SeekInput -> URLString -> AddUrlOptions -> CommandPerform -> CommandStart
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startingAddUrl si url o p = starting "addurl" ai si $ do
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case fileOption (downloadOptions o) of
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Nothing -> noop
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Just file -> maybeShowJSON $ JSONChunk [("file", file)]
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p
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where
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-- Avoid failure when the same url is downloaded concurrently
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-- to two different files, by using OnlyActionOn with a key
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-- based on the url. Note that this may not be the actual key
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-- that is used for the download; later size information may be
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-- available and get added to it. That's ok, this is only
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-- used to prevent two threads running concurrently when that would
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-- likely fail.
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ai = OnlyActionOn urlkey (ActionItemOther (Just (UnquotedString url)))
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urlkey = Backend.URL.fromUrl url Nothing (verifiableOption (downloadOptions o))
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showDestinationFile :: RawFilePath -> Annex ()
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showDestinationFile file = do
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showNote ("to " <> QuotedPath file)
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maybeShowJSON $ JSONChunk [("file", fromRawFilePath file)]
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{- The Key should be a dummy key, based on the URL, which is used
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- for this download, before we can examine the file and find its real key.
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- For resuming downloads to work, the dummy key for a given url should be
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- stable. For disk space checking to work, the dummy key should have
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- the size of the url already set.
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-
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- Downloads the url, sets up the worktree file, and returns the
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- real key.
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-}
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downloadWith :: CanAddFile -> AddUnlockedMatcher -> (FilePath -> MeterUpdate -> Annex Bool) -> Key -> UUID -> URLString -> RawFilePath -> Annex (Maybe Key)
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downloadWith canadd addunlockedmatcher downloader dummykey u url file =
|
|
go =<< downloadWith' downloader dummykey u url file
|
|
where
|
|
go Nothing = return Nothing
|
|
go (Just (tmp, backend)) = Just <$> finishDownloadWith canadd addunlockedmatcher tmp backend u url file
|
|
|
|
{- Like downloadWith, but leaves the dummy key content in
|
|
- the returned location. -}
|
|
downloadWith' :: (FilePath -> MeterUpdate -> Annex Bool) -> Key -> UUID -> URLString -> RawFilePath -> Annex (Maybe (RawFilePath, Backend))
|
|
downloadWith' downloader dummykey u url file =
|
|
checkDiskSpaceToGet dummykey Nothing Nothing $ do
|
|
backend <- chooseBackend file
|
|
tmp <- fromRepo $ gitAnnexTmpObjectLocation dummykey
|
|
let t = (Transfer.Transfer Transfer.Download u (fromKey id dummykey))
|
|
ok <- Transfer.notifyTransfer Transfer.Download url $ \_w ->
|
|
Transfer.runTransfer t (Just backend) afile Nothing Transfer.stdRetry $ \p -> do
|
|
createAnnexDirectory (parentDir tmp)
|
|
downloader (fromRawFilePath tmp) p
|
|
if ok
|
|
then return (Just (tmp, backend))
|
|
else return Nothing
|
|
where
|
|
afile = AssociatedFile (Just file)
|
|
|
|
finishDownloadWith :: CanAddFile -> AddUnlockedMatcher -> RawFilePath -> Backend -> UUID -> URLString -> RawFilePath -> Annex Key
|
|
finishDownloadWith canadd addunlockedmatcher tmp backend u url file = do
|
|
let source = KeySource
|
|
{ keyFilename = file
|
|
, contentLocation = tmp
|
|
, inodeCache = Nothing
|
|
}
|
|
key <- fst <$> genKey source nullMeterUpdate backend
|
|
addWorkTree canadd addunlockedmatcher u url file key (Just tmp)
|
|
return key
|
|
|
|
{- Adds the url size to the Key. -}
|
|
addSizeUrlKey :: Url.UrlInfo -> Key -> Key
|
|
addSizeUrlKey urlinfo key = alterKey key $ \d -> d
|
|
{ keySize = Url.urlSize urlinfo
|
|
}
|
|
|
|
{- Adds worktree file to the repository. -}
|
|
addWorkTree :: CanAddFile -> AddUnlockedMatcher -> UUID -> URLString -> RawFilePath -> Key -> Maybe RawFilePath -> Annex ()
|
|
addWorkTree _ addunlockedmatcher u url file key mtmp = case mtmp of
|
|
Nothing -> go
|
|
Just tmp -> do
|
|
s <- liftIO $ R.getSymbolicLinkStatus tmp
|
|
-- Move to final location for large file check.
|
|
pruneTmpWorkDirBefore tmp $ \_ -> do
|
|
createWorkTreeDirectory (P.takeDirectory file)
|
|
liftIO $ moveFile tmp file
|
|
largematcher <- largeFilesMatcher
|
|
large <- checkFileMatcher largematcher file
|
|
if large
|
|
then do
|
|
-- Move back to tmp because addAnnexedFile
|
|
-- needs the file in a different location
|
|
-- than the work tree file.
|
|
liftIO $ moveFile file tmp
|
|
go
|
|
else Command.Add.addSmall (DryRun False) file s
|
|
>>= maybe noop void
|
|
where
|
|
go = do
|
|
maybeShowJSON $ JSONChunk [("key", serializeKey key)]
|
|
setUrlPresent key url
|
|
logChange key u InfoPresent
|
|
ifM (addAnnexedFile addunlockedmatcher file key mtmp)
|
|
( do
|
|
when (isJust mtmp) $
|
|
logStatus key InfoPresent
|
|
, maybe noop (\tmp -> pruneTmpWorkDirBefore tmp (liftIO . removeWhenExistsWith R.removeLink)) mtmp
|
|
)
|
|
|
|
nodownloadWeb :: AddUnlockedMatcher -> DownloadOptions -> URLString -> Url.UrlInfo -> RawFilePath -> Annex (Maybe Key)
|
|
nodownloadWeb addunlockedmatcher o url urlinfo file
|
|
| Url.urlExists urlinfo = if rawOption o
|
|
then nomedia
|
|
else youtubeDlFileName url >>= \case
|
|
Right mediafile -> usemedia (toRawFilePath mediafile)
|
|
Left err -> checkRaw (Just err) o (pure Nothing) nomedia
|
|
| otherwise = do
|
|
warning $ UnquotedString $ "unable to access url: " ++ url
|
|
return Nothing
|
|
where
|
|
nomedia = do
|
|
let key = Backend.URL.fromUrl url (Url.urlSize urlinfo) (verifiableOption o)
|
|
nodownloadWeb' o addunlockedmatcher url key file
|
|
usemedia mediafile = do
|
|
let dest = youtubeDlDestFile o file mediafile
|
|
let mediaurl = setDownloader url YoutubeDownloader
|
|
let mediakey = Backend.URL.fromUrl mediaurl Nothing (verifiableOption o)
|
|
nodownloadWeb' o addunlockedmatcher mediaurl mediakey dest
|
|
|
|
youtubeDlDestFile :: DownloadOptions -> RawFilePath -> RawFilePath -> RawFilePath
|
|
youtubeDlDestFile o destfile mediafile
|
|
| isJust (fileOption o) = destfile
|
|
| otherwise = P.takeFileName mediafile
|
|
|
|
nodownloadWeb' :: DownloadOptions -> AddUnlockedMatcher -> URLString -> Key -> RawFilePath -> Annex (Maybe Key)
|
|
nodownloadWeb' o addunlockedmatcher url key file = checkCanAdd o file $ \canadd -> do
|
|
showDestinationFile file
|
|
createWorkTreeDirectory (parentDir file)
|
|
addWorkTree canadd addunlockedmatcher webUUID url file key Nothing
|
|
return (Just key)
|
|
|
|
url2file :: URI -> Maybe Int -> Int -> FilePath
|
|
url2file url pathdepth pathmax = case pathdepth of
|
|
Nothing -> truncateFilePath pathmax $ sanitizeFilePath fullurl
|
|
Just depth
|
|
| depth >= length urlbits -> frombits id
|
|
| depth > 0 -> frombits $ drop depth
|
|
| depth < 0 -> frombits $ reverse . take (negate depth) . reverse
|
|
| otherwise -> giveup "bad --pathdepth"
|
|
where
|
|
fullurl = concat
|
|
[ maybe "" uriRegName (uriAuthority url)
|
|
, uriPath url
|
|
, uriQuery url
|
|
]
|
|
frombits a = intercalate "/" $ a urlbits
|
|
urlbits = map (truncateFilePath pathmax . sanitizeFilePath) $
|
|
filter (not . null) $ splitc '/' fullurl
|
|
|
|
urlString2file :: URLString -> Maybe Int -> Int -> FilePath
|
|
urlString2file s pathdepth pathmax = case Url.parseURIRelaxed s of
|
|
Nothing -> giveup $ "bad uri " ++ s
|
|
Just u -> url2file u pathdepth pathmax
|
|
|
|
adjustFile :: AddUrlOptions -> FilePath -> FilePath
|
|
adjustFile o = addprefix . addsuffix
|
|
where
|
|
addprefix f = maybe f (++ f) (prefixOption o)
|
|
addsuffix f = maybe f (f ++) (suffixOption o)
|
|
|
|
data CanAddFile = CanAddFile
|
|
|
|
checkCanAdd :: DownloadOptions -> RawFilePath -> (CanAddFile -> Annex (Maybe a)) -> Annex (Maybe a)
|
|
checkCanAdd o file a = ifM (isJust <$> (liftIO $ catchMaybeIO $ R.getSymbolicLinkStatus file))
|
|
( do
|
|
warning $ QuotedPath file <> " already exists; not overwriting"
|
|
return Nothing
|
|
, ifM (checkIgnored (checkGitIgnoreOption o) file)
|
|
( do
|
|
warning $ "not adding " <> QuotedPath file <> " which is .gitignored (use --no-check-gitignore to override)"
|
|
return Nothing
|
|
, a CanAddFile
|
|
)
|
|
)
|