84 lines
2.7 KiB
Haskell
84 lines
2.7 KiB
Haskell
{-# LANGUAGE DataKinds #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE NoImplicitPrelude #-}
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{-# LANGUAGE TemplateHaskell #-}
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{-# LANGUAGE TypeFamilies #-}
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{-# LANGUAGE FlexibleInstances, TypeSynonymInstances #-}
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{-# LANGUAGE RecordWildCards, ViewPatterns, PatternGuards #-}
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{-# LANGUAGE PatternSynonyms #-}
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{-# OPTIONS_GHC -fno-warn-orphans #-}
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module CryptoID
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( module CryptoID
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, module Data.CryptoID.Poly.ImplicitNamespace
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, module Data.UUID.Cryptographic.ImplicitNamespace
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, module System.FilePath.Cryptographic.ImplicitNamespace
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) where
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import CryptoID.TH
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import ClassyPrelude hiding (fromString)
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import Model
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import qualified Data.CryptoID as E
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import Data.CryptoID.Poly.ImplicitNamespace
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import Data.UUID.Cryptographic.ImplicitNamespace
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import System.FilePath.Cryptographic.ImplicitNamespace
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import qualified Data.Text as Text
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import Data.UUID.Types
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import Web.PathPieces
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import Data.CaseInsensitive (CI)
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import qualified Data.CaseInsensitive as CI
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instance PathPiece UUID where
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fromPathPiece = fromString . unpack
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toPathPiece = pack . toString
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instance (CI.FoldCase s, PathPiece s) => PathPiece (CI s) where
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fromPathPiece = fmap CI.mk . fromPathPiece
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toPathPiece = toPathPiece . CI.original
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instance {-# OVERLAPS #-} PathMultiPiece FilePath where
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fromPathMultiPiece = Just . unpack . intercalate "/"
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toPathMultiPiece = Text.splitOn "/" . pack
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instance (CI.FoldCase s, PathMultiPiece s) => PathMultiPiece (CI s) where
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fromPathMultiPiece = fmap CI.mk . fromPathMultiPiece
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toPathMultiPiece = toPathMultiPiece . CI.foldedCase
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-- Generates CryptoUUID... and CryptoFileName... Datatypes
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decCryptoIDs [ ''SubmissionId
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, ''FileId
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, ''UserId
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, ''CourseId
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]
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instance {-# OVERLAPS #-} namespace ~ CryptoIDNamespace (CI FilePath) SubmissionId => PathPiece (E.CryptoID namespace (CI FilePath)) where
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fromPathPiece (Text.unpack -> piece) = do
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piece' <- (stripPrefix `on` map CI.mk) "uwa" piece
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return . CryptoID . CI.mk $ map CI.original piece'
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toPathPiece = Text.pack . ("uwa" <>) . CI.foldedCase . ciphertext
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newtype SubmissionMode = SubmissionMode (Maybe CryptoFileNameSubmission)
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deriving (Show, Read, Eq)
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pattern NewSubmission :: SubmissionMode
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pattern NewSubmission = SubmissionMode Nothing
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pattern ExistingSubmission :: CryptoFileNameSubmission -> SubmissionMode
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pattern ExistingSubmission cID = SubmissionMode (Just cID)
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instance PathPiece SubmissionMode where
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fromPathPiece "new" = Just $ SubmissionMode Nothing
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fromPathPiece s = SubmissionMode . Just <$> fromPathPiece s
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toPathPiece (SubmissionMode Nothing) = "new"
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toPathPiece (SubmissionMode (Just x)) = toPathPiece x
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