git-annex/Remote/Helper/AWS.hs
Joey Hess 5343544822
S3: Support the special case endpoint needed for the cn-north-1 region.
* S3: Support the special case endpoint needed for the cn-north-1 region.
* Webapp: Don't list the Frankfurt region, as this (and some other new
  regions) need V4 authorization which the aws library does not yet use.

This commit was sponsored by Nick Daly on Patreon.
2016-11-07 11:49:34 -04:00

82 lines
2.6 KiB
Haskell

{- Amazon Web Services common infrastructure.
-
- Copyright 2011-2014 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE TupleSections #-}
module Remote.Helper.AWS where
import Annex.Common
import Creds
import qualified Data.Map as M
import qualified Data.ByteString as B
import qualified Data.Text as T
import Data.Text.Encoding (encodeUtf8)
import Data.Text (Text)
creds :: UUID -> CredPairStorage
creds u = CredPairStorage
{ credPairFile = fromUUID u
, credPairEnvironment = ("AWS_ACCESS_KEY_ID", "AWS_SECRET_ACCESS_KEY")
, credPairRemoteKey = Just "s3creds"
}
data Service = S3 | Glacier
deriving (Eq)
type Region = Text
regionMap :: Service -> M.Map Text Region
regionMap = M.fromList . regionInfo
defaultRegion :: Service -> Region
defaultRegion = snd . Prelude.head . regionInfo
data ServiceRegion = BothRegion Region | S3Region Region | GlacierRegion Region
{- The "US" and "EU" names are used as location constraints when creating a
- S3 bucket. -}
regionInfo :: Service -> [(Text, Region)]
regionInfo service = map (\(t, r) -> (t, fromServiceRegion r)) $
filter (matchingService . snd) $
concatMap (\(t, l) -> map (t,) l) regions
where
regions =
[ ("US East (N. Virginia)", [S3Region "US", GlacierRegion "us-east-1"])
, ("US West (Oregon)", [BothRegion "us-west-2"])
, ("US West (N. California)", [BothRegion "us-west-1"])
, ("EU (Ireland)", [S3Region "EU", GlacierRegion "eu-west-1"])
, ("Asia Pacific (Singapore)", [S3Region "ap-southeast-1"])
, ("Asia Pacific (Tokyo)", [BothRegion "ap-northeast-1"])
, ("Asia Pacific (Sydney)", [S3Region "ap-southeast-2"])
, ("South America (São Paulo)", [S3Region "sa-east-1"])
-- These need signature V4 support, which has not landed in
-- the aws library.
-- See https://github.com/aristidb/aws/pull/199
-- , ("EU (Frankfurt)", [BothRegion "eu-central-1"])
-- , ("Asia Pacific (Seoul)", [S3Region "ap-northeast-2"])
-- , ("Asia Pacific (Mumbai)", [S3Region "ap-south-1"])
-- , ("US East (Ohio)", [S3Region "us-east-2"])
]
fromServiceRegion (BothRegion s) = s
fromServiceRegion (S3Region s) = s
fromServiceRegion (GlacierRegion s) = s
matchingService (BothRegion _) = True
matchingService (S3Region _) = service == S3
matchingService (GlacierRegion _) = service == Glacier
s3HostName :: Region -> B.ByteString
s3HostName "US" = "s3.amazonaws.com"
s3HostName "EU" = "s3-eu-west-1.amazonaws.com"
s3HostName "cn-north-1" = "s3.cn-north-1.amazonaws.com.cn"
s3HostName r = encodeUtf8 $ T.concat ["s3-", r, ".amazonaws.com"]
s3DefaultHost :: String
s3DefaultHost = "s3.amazonaws.com"