git-annex/Command/AddUrl.hs
Joey Hess a7b4358c05
honor --file when downloading with youtube-dl
This used to be done with quvi, and got broken in the transition.
2017-11-30 13:24:52 -04:00

431 lines
14 KiB
Haskell

{- git-annex command
-
- Copyright 2011-2014 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.AddUrl where
import Network.URI
import Command
import Backend
import qualified Annex
import qualified Annex.Url as Url
import qualified Backend.URL
import qualified Remote
import qualified Types.Remote as Remote
import qualified Command.Add
import Annex.Content
import Annex.Ingest
import Annex.CheckIgnore
import Annex.UUID
import Annex.YoutubeDl
import Logs.Web
import Types.KeySource
import Types.UrlContents
import Annex.FileMatcher
import Logs.Location
import Utility.Metered
import Utility.FileSystemEncoding
import Utility.HtmlDetect
import qualified Annex.Transfer as Transfer
cmd :: Command
cmd = notBareRepo $ withGlobalOptions [jobsOption, jsonOption, jsonProgressOption] $
command "addurl" SectionCommon "add urls to annex"
(paramRepeating paramUrl) (seek <$$> optParser)
data AddUrlOptions = AddUrlOptions
{ addUrls :: CmdParams
, fileOption :: Maybe FilePath
, pathdepthOption :: Maybe Int
, prefixOption :: Maybe String
, suffixOption :: Maybe String
, relaxedOption :: Bool
, rawOption :: Bool
, batchOption :: BatchMode
, batchFilesOption :: Bool
}
optParser :: CmdParamsDesc -> Parser AddUrlOptions
optParser desc = AddUrlOptions
<$> cmdParams desc
<*> optional (strOption
( long "file" <> metavar paramFile
<> help "specify what file the url is added to"
))
<*> optional (option auto
( long "pathdepth" <> metavar paramNumber
<> help "number of url path components to use in filename"
))
<*> optional (strOption
( long "prefix" <> metavar paramValue
<> help "add a prefix to the filename"
))
<*> optional (strOption
( long "suffix" <> metavar paramValue
<> help "add a suffix to the filename"
))
<*> parseRelaxedOption
<*> parseRawOption
<*> parseBatchOption
<*> switch
( long "with-files"
<> help "parse batch mode lines of the form \"$url $file\""
)
parseRelaxedOption :: Parser Bool
parseRelaxedOption = switch
( long "relaxed"
<> help "skip size check"
)
parseRawOption :: Parser Bool
parseRawOption = switch
( long "raw"
<> help "disable special handling for torrents, youtube-dl, etc"
)
seek :: AddUrlOptions -> CommandSeek
seek o = allowConcurrentOutput $ do
forM_ (addUrls o) (\u -> go (o, u))
case batchOption o of
Batch -> batchInput (parseBatchInput o) go
NoBatch -> noop
where
go (o', u) = do
r <- Remote.claimingUrl u
if Remote.uuid r == webUUID || rawOption o'
then void $ commandAction $ startWeb o' u
else checkUrl r o' u
parseBatchInput :: AddUrlOptions -> String -> Either String (AddUrlOptions, URLString)
parseBatchInput o s
| batchFilesOption o =
let (u, f) = separate (== ' ') s
in if null u || null f
then Left ("parsed empty url or filename in input: " ++ s)
else Right (o { fileOption = Just f }, u)
| otherwise = Right (o, s)
checkUrl :: Remote -> AddUrlOptions -> URLString -> Annex ()
checkUrl r o u = do
pathmax <- liftIO $ fileNameLengthLimit "."
let deffile = fromMaybe (urlString2file u (pathdepthOption o) pathmax) (fileOption o)
go deffile =<< maybe
(error $ "unable to checkUrl of " ++ Remote.name r)
(tryNonAsync . flip id u)
(Remote.checkUrl r)
where
go _ (Left e) = void $ commandAction $ do
showStart' "addurl" (Just u)
warning (show e)
next $ next $ return False
go deffile (Right (UrlContents sz mf)) = do
let f = adjustFile o (fromMaybe (maybe deffile fromSafeFilePath mf) (fileOption o))
void $ commandAction $
startRemote r (relaxedOption o) f u sz
go deffile (Right (UrlMulti l))
| isNothing (fileOption o) =
forM_ l $ \(u', sz, f) -> do
let f' = adjustFile o (deffile </> fromSafeFilePath f)
void $ commandAction $
startRemote r (relaxedOption o) f' u' sz
| otherwise = giveup $ unwords
[ "That url contains multiple files according to the"
, Remote.name r
, " remote; cannot add it to a single file."
]
startRemote :: Remote -> Bool -> FilePath -> URLString -> Maybe Integer -> CommandStart
startRemote r relaxed file uri sz = do
pathmax <- liftIO $ fileNameLengthLimit "."
let file' = joinPath $ map (truncateFilePath pathmax) $ splitDirectories file
showStart' "addurl" (Just uri)
showNote $ "from " ++ Remote.name r
showDestinationFile file'
next $ performRemote r relaxed uri file' sz
performRemote :: Remote -> Bool -> URLString -> FilePath -> Maybe Integer -> CommandPerform
performRemote r relaxed uri file sz = ifAnnexed file adduri geturi
where
loguri = setDownloader uri OtherDownloader
adduri = addUrlChecked relaxed loguri (Remote.uuid r) checkexistssize
checkexistssize key = return $ case sz of
Nothing -> (True, True)
Just n -> (True, n == fromMaybe n (keySize key))
geturi = next $ isJust <$> downloadRemoteFile r relaxed uri file sz
downloadRemoteFile :: Remote -> Bool -> URLString -> FilePath -> Maybe Integer -> Annex (Maybe Key)
downloadRemoteFile r relaxed uri file sz = checkCanAdd file $ do
let urlkey = Backend.URL.fromUrl uri sz
liftIO $ createDirectoryIfMissing True (parentDir file)
ifM (Annex.getState Annex.fast <||> pure relaxed)
( do
addWorkTree (Remote.uuid r) loguri file urlkey Nothing
return (Just urlkey)
, do
-- Set temporary url for the urlkey
-- so that the remote knows what url it
-- should use to download it.
setTempUrl urlkey loguri
let downloader = \dest p -> fst
<$> Remote.retrieveKeyFile r urlkey
(AssociatedFile (Just file)) dest p
ret <- downloadWith downloader urlkey (Remote.uuid r) loguri file
removeTempUrl urlkey
return ret
)
where
loguri = setDownloader uri OtherDownloader
startWeb :: AddUrlOptions -> URLString -> CommandStart
startWeb o urlstring = go $ fromMaybe bad $ parseURI urlstring
where
bad = fromMaybe (giveup $ "bad url " ++ urlstring) $
Url.parseURIRelaxed $ urlstring
go url = do
showStart' "addurl" (Just urlstring)
pathmax <- liftIO $ fileNameLengthLimit "."
urlinfo <- if relaxedOption o
then pure Url.assumeUrlExists
else Url.withUrlOptions (Url.getUrlInfo urlstring)
file <- adjustFile o <$> case fileOption o of
Just f -> pure f
Nothing -> case Url.urlSuggestedFile urlinfo of
Nothing -> pure $ url2file url (pathdepthOption o) pathmax
Just sf -> do
let f = truncateFilePath pathmax $
sanitizeFilePath sf
ifM (liftIO $ doesFileExist f <||> doesDirectoryExist f)
( pure $ url2file url (pathdepthOption o) pathmax
, pure f
)
next $ performWeb o urlstring file urlinfo
performWeb :: AddUrlOptions -> URLString -> FilePath -> Url.UrlInfo -> CommandPerform
performWeb o url file urlinfo = ifAnnexed file addurl geturl
where
geturl = next $ isJust <$> addUrlFile (Just o) (relaxedOption o) url urlinfo file
-- TODO youtube-dl
addurl = addUrlChecked (relaxedOption o) url webUUID $ \k -> return $
(Url.urlExists urlinfo, Url.urlSize urlinfo == keySize k)
addUrlChecked :: Bool -> URLString -> UUID -> (Key -> Annex (Bool, Bool)) -> Key -> CommandPerform
addUrlChecked relaxed url u checkexistssize key
| relaxed = do
setUrlPresent u key url
next $ return True
| otherwise = ifM ((elem url <$> getUrls key) <&&> (elem u <$> loggedLocations key))
( next $ return True -- nothing to do
, do
(exists, samesize) <- checkexistssize key
if exists && samesize
then do
setUrlPresent u key url
next $ return True
else do
warning $ "while adding a new url to an already annexed file, " ++ if exists
then "url does not have expected file size (use --relaxed to bypass this check) " ++ url
else "failed to verify url exists: " ++ url
stop
)
{- Downloads an url and adds it to the repository, normally at the specified
- FilePath. But, if youtube-dl supports the url, it will be written to a
- different file, based on the title of the media. Unless the user
- specified fileOption, which then forces using the FilePath.
-}
addUrlFile :: Maybe AddUrlOptions -> Bool -> URLString -> Url.UrlInfo -> FilePath -> Annex (Maybe Key)
addUrlFile mo relaxed url urlinfo file
| relaxed = checkCanAdd file $ do
liftIO $ createDirectoryIfMissing True (parentDir file)
nodownload url urlinfo file
| otherwise = ifM (Annex.getState Annex.fast)
( checkCanAdd file $ do
liftIO $ createDirectoryIfMissing True (parentDir file)
nodownload url urlinfo file
, downloadWeb mo url urlinfo file
)
downloadWeb :: Maybe AddUrlOptions -> URLString -> Url.UrlInfo -> FilePath -> Annex (Maybe Key)
downloadWeb mo url urlinfo file =
go =<< downloadWith' downloader urlkey webUUID url (AssociatedFile (Just file))
where
urlkey = addSizeUrlKey urlinfo $ Backend.URL.fromUrl url Nothing
downloader f p = do
showOutput
downloadUrl urlkey p [url] f
go Nothing = return Nothing
-- If we downloaded a html file, try to use youtube-dl to
-- extract embedded media.
go (Just tmp) = ifM (liftIO $ isHtml <$> readFile tmp)
( tryyoutubedl tmp
, normalfinish tmp
)
normalfinish tmp = do
showDestinationFile file
liftIO $ createDirectoryIfMissing True (parentDir file)
finishDownloadWith tmp webUUID url file
tryyoutubedl tmp = do
let mediaurl = setDownloader url YoutubeDownloader
let mediakey = Backend.URL.fromUrl mediaurl Nothing
res <- withTmpWorkDir mediakey $ \workdir ->
Transfer.notifyTransfer Transfer.Download url $
Transfer.download webUUID mediakey (AssociatedFile Nothing) Transfer.noRetry $ \_p -> do
dl <- youtubeDl url workdir
case dl of
Right (Just mediafile) -> do
pruneTmpWorkDirBefore tmp (liftIO . nukeFile)
let dest = if isJust (fileOption <$> mo)
then file
else takeFileName mediafile
showDestinationFile dest
addWorkTree webUUID mediaurl dest mediakey (Just mediafile)
return $ Right $ Just mediakey
Right Nothing -> Right <$> normalfinish tmp
Left msg -> return $ Left msg
case res of
Left msg -> do
warning msg
return Nothing
Right r -> return r
showDestinationFile :: FilePath -> Annex ()
showDestinationFile file = do
showNote ("to " ++ file)
maybeShowJSON $ JSONChunk [("file", file)]
{- The Key should be a dummy key, based on the URL, which is used
- for this download, before we can examine the file and find its real key.
- For resuming downloads to work, the dummy key for a given url should be
- stable. For disk space checking to work, the dummy key should have
- the size of the url already set.
-
- Downloads the url, sets up the worktree file, and returns the
- real key.
-}
downloadWith :: (FilePath -> MeterUpdate -> Annex Bool) -> Key -> UUID -> URLString -> FilePath -> Annex (Maybe Key)
downloadWith downloader dummykey u url file =
go =<< downloadWith' downloader dummykey u url afile
where
afile = AssociatedFile (Just file)
go Nothing = return Nothing
go (Just tmp) = finishDownloadWith tmp u url file
{- Like downloadWith, but leaves the dummy key content in
- the returned location. -}
downloadWith' :: (FilePath -> MeterUpdate -> Annex Bool) -> Key -> UUID -> URLString -> AssociatedFile -> Annex (Maybe FilePath)
downloadWith' downloader dummykey u url afile =
checkDiskSpaceToGet dummykey Nothing $ do
tmp <- fromRepo $ gitAnnexTmpObjectLocation dummykey
ok <- Transfer.notifyTransfer Transfer.Download url $
Transfer.download u dummykey afile Transfer.forwardRetry $ \p -> do
liftIO $ createDirectoryIfMissing True (parentDir tmp)
downloader tmp p
if ok
then return (Just tmp)
else return Nothing
finishDownloadWith :: FilePath -> UUID -> URLString -> FilePath -> Annex (Maybe Key)
finishDownloadWith tmp u url file = do
backend <- chooseBackend file
let source = KeySource
{ keyFilename = file
, contentLocation = tmp
, inodeCache = Nothing
}
k <- genKey source backend
case k of
Nothing -> return Nothing
Just (key, _) -> do
addWorkTree u url file key (Just tmp)
return (Just key)
{- Adds the url size to the Key. -}
addSizeUrlKey :: Url.UrlInfo -> Key -> Key
addSizeUrlKey urlinfo key = key { keySize = Url.urlSize urlinfo }
{- Adds worktree file to the repository. -}
addWorkTree :: UUID -> URLString -> FilePath -> Key -> Maybe FilePath -> Annex ()
addWorkTree u url file key mtmp = case mtmp of
Nothing -> go
Just tmp -> do
-- Move to final location for large file check.
pruneTmpWorkDirBefore tmp (\_ -> liftIO $ renameFile 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 $ renameFile file tmp
go
else void $ Command.Add.addSmall file
where
go = do
maybeShowJSON $ JSONChunk [("key", key2file key)]
setUrlPresent u key url
ifM (addAnnexedFile file key mtmp)
( do
when (isJust mtmp) $
logStatus key InfoPresent
, maybe noop (\tmp -> pruneTmpWorkDirBefore tmp (liftIO . nukeFile)) mtmp
)
-- TODO youtube-dl
nodownload :: URLString -> Url.UrlInfo -> FilePath -> Annex (Maybe Key)
nodownload url urlinfo file
| Url.urlExists urlinfo = do
let key = Backend.URL.fromUrl url (Url.urlSize urlinfo)
addWorkTree webUUID url file key Nothing
return (Just key)
| otherwise = do
warning $ "unable to access url: " ++ url
return Nothing
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)
checkCanAdd :: FilePath -> Annex (Maybe a) -> Annex (Maybe a)
checkCanAdd file a = ifM (isJust <$> (liftIO $ catchMaybeIO $ getSymbolicLinkStatus file))
( do
warning $ file ++ " already exists and is not annexed; not overwriting"
return Nothing
, ifM ((not <$> Annex.getState Annex.force) <&&> checkIgnored file)
( do
warning $ "not adding " ++ file ++ " which is .gitignored (use --force to override)"
return Nothing
, a
)
)