90 lines
2.7 KiB
Haskell
90 lines
2.7 KiB
Haskell
{- Amazon Web Services common infrastructure.
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-
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- Copyright 2011-2014 Joey Hess <joey@kitenet.net>
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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{-# LANGUAGE OverloadedStrings, TupleSections #-}
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module Remote.Helper.AWS where
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import Common.Annex
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import Creds
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import qualified Aws
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import qualified Aws.S3 as S3
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import qualified Data.Map as M
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import qualified Data.ByteString as B
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import qualified Data.Text as T
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import Data.Text.Encoding (encodeUtf8)
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import Data.Text (Text)
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import Data.IORef
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creds :: UUID -> CredPairStorage
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creds u = CredPairStorage
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{ credPairFile = fromUUID u
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, credPairEnvironment = ("AWS_ACCESS_KEY_ID", "AWS_SECRET_ACCESS_KEY")
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, credPairRemoteKey = Just "s3creds"
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}
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genCredentials :: CredPair -> IO Aws.Credentials
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genCredentials (keyid, secret) = Aws.Credentials
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<$> pure (encodeUtf8 (T.pack keyid))
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<*> pure (encodeUtf8 (T.pack secret))
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<*> newIORef []
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<*> pure Nothing
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data Service = S3 | Glacier
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deriving (Eq)
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type Region = Text
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regionMap :: Service -> M.Map Text Region
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regionMap = M.fromList . regionInfo
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defaultRegion :: Service -> Region
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defaultRegion = snd . Prelude.head . regionInfo
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data ServiceRegion = BothRegion Region | S3Region Region | GlacierRegion Region
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{- The "US" and "EU" names are used as location constraints when creating a
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- S3 bucket. -}
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regionInfo :: Service -> [(Text, Region)]
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regionInfo service = map (\(t, r) -> (t, fromServiceRegion r)) $
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filter (matchingService . snd) $
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concatMap (\(t, l) -> map (t,) l) regions
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where
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regions =
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[ ("US East (N. Virginia)", [S3Region "US", GlacierRegion "us-east-1"])
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, ("US West (Oregon)", [BothRegion "us-west-2"])
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, ("US West (N. California)", [BothRegion "us-west-1"])
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-- Requires AWS4-HMAC-SHA256 which S3 library does not
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-- currently support.
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-- , ("EU (Frankfurt)", [BothRegion "eu-central-1"])
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, ("EU (Ireland)", [S3Region "EU", GlacierRegion "eu-west-1"])
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, ("Asia Pacific (Singapore)", [S3Region "ap-southeast-1"])
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, ("Asia Pacific (Tokyo)", [BothRegion "ap-northeast-1"])
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, ("Asia Pacific (Sydney)", [S3Region "ap-southeast-2"])
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, ("South America (São Paulo)", [S3Region "sa-east-1"])
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]
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fromServiceRegion (BothRegion s) = s
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fromServiceRegion (S3Region s) = s
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fromServiceRegion (GlacierRegion s) = s
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matchingService (BothRegion _) = True
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matchingService (S3Region _) = service == S3
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matchingService (GlacierRegion _) = service == Glacier
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s3HostName :: Region -> B.ByteString
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s3HostName "US" = "s3.amazonaws.com"
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s3HostName "EU" = "s3-eu-west-1.amazonaws.com"
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s3HostName r = encodeUtf8 $ T.concat ["s3-", r, ".amazonaws.com"]
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s3DefaultHost :: String
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s3DefaultHost = "s3.amazonaws.com"
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mkLocationConstraint :: Region -> S3.LocationConstraint
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mkLocationConstraint "US" = S3.locationUsClassic
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mkLocationConstraint r = r
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