40 lines
879 B
Haskell
40 lines
879 B
Haskell
{- git-annex "URL" backend -- keys whose content is available from urls.
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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 Backend.URL (
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backends,
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fromUrl
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) where
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import Annex.Common
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import Types.Key
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import Types.Backend
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import Backend.Utilities
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backends :: [Backend]
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backends = [backend]
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backend :: Backend
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backend = Backend
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{ backendVariety = URLKey
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, genKey = Nothing
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, verifyKeyContent = Nothing
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, canUpgradeKey = Nothing
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, fastMigrate = Nothing
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-- The content of an url can change at any time, so URL keys are
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-- not stable.
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, isStableKey = const False
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, isCryptographicallySecure = const False
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}
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{- Every unique url has a corresponding key. -}
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fromUrl :: String -> Maybe Integer -> Key
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fromUrl url size = mkKey $ \k -> k
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{ keyName = genKeyName url
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, keyVariety = URLKey
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, keySize = size
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}
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