hjugement-cli (empty) → 0.0.0.20190621
raw patch · 9 files changed
+1577/−0 lines, 9 filesdep +aesondep +basedep +base64-bytestring
Dependencies added: aeson, base, base64-bytestring, binary, bytestring, containers, cryptonite, deepseq, directory, filepath, ghc-prim, hjugement, hjugement-protocol, lens-family-core, memory, pipes, pipes-aeson, pipes-bytestring, pipes-group, pipes-parse, pipes-safe, pipes-text, random, reflection, symantic-cli, symantic-document, terminal-size, text, time, transformers, unix, unordered-containers
Files
- COPYING +674/−0
- hjugement-cli.cabal +98/−0
- src/Hjugement/CLI.hs +78/−0
- src/Hjugement/CLI/MkElection.hs +45/−0
- src/Hjugement/CLI/Registrar.hs +190/−0
- src/Hjugement/CLI/Trustee.hs +206/−0
- src/Hjugement/CLI/Utils.hs +256/−0
- src/Main.hs +14/−0
- stack.yaml +16/−0
+ COPYING view
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Of course, your program's commands+might be different; for a GUI interface, you would use an "about box".++ You should also get your employer (if you work as a programmer) or school,+if any, to sign a "copyright disclaimer" for the program, if necessary.+For more information on this, and how to apply and follow the GNU GPL, see+<http://www.gnu.org/licenses/>.++ The GNU General Public License does not permit incorporating your program+into proprietary programs. If your program is a subroutine library, you+may consider it more useful to permit linking proprietary applications with+the library. If this is what you want to do, use the GNU Lesser General+Public License instead of this License. But first, please read+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
+ hjugement-cli.cabal view
@@ -0,0 +1,98 @@+name: hjugement-cli+-- PVP: +-+------- breaking API changes+-- | | +----- non-breaking API additions+-- | | | +--- code changes with no API change+version: 0.0.0.20190621+category: Politic+synopsis: +description: Majority Judgment command line tool+extra-doc-files: +license: GPL-3+license-file: COPYING+stability: experimental+author: Julien Moutinho <julm+hjugement@autogeree.net>+maintainer: Julien Moutinho <julm+hjugement@autogeree.net>+bug-reports: Julien Moutinho <julm+hjugement@autogeree.net>+-- homepage:++build-type: Simple+cabal-version: 1.24+tested-with: GHC==8.6.4+extra-source-files:+ stack.yaml+extra-tmp-files:++Source-Repository head+ location: git://git.autogeree.net/hjugement+ type: git++Executable hjugement-cli+ hs-source-dirs: src+ main-is: Main.hs+ other-modules:+ Hjugement.CLI+ Hjugement.CLI.MkElection+ Hjugement.CLI.Registrar+ Hjugement.CLI.Trustee+ Hjugement.CLI.Utils+ Paths_hjugement_cli+ default-language: Haskell2010+ default-extensions:+ AllowAmbiguousTypes+ ConstraintKinds+ DefaultSignatures+ FlexibleContexts+ FlexibleInstances+ GeneralizedNewtypeDeriving+ LambdaCase+ MonoLocalBinds+ MultiParamTypeClasses+ NamedFieldPuns+ NoImplicitPrelude+ NoMonomorphismRestriction+ RecordWildCards+ ScopedTypeVariables+ StandaloneDeriving+ TupleSections+ TypeApplications+ TypeFamilies+ TypeOperators+ ghc-options:+ -Wall+ -Wincomplete-uni-patterns+ -Wincomplete-record-updates+ -fno-warn-tabs+ -- -fhide-source-paths+ build-depends:+ hjugement >= 2.0+ , hjugement-protocol >= 0.0.1+ , aeson >= 1.3+ , base >= 4.6 && < 5+ , base64-bytestring >= 1.0+ , binary >= 0.8+ , bytestring >= 0.10+ , containers >= 0.5+ , cryptonite >= 0.25+ , deepseq >= 1.4+ , directory >= 1.3+ , filepath >= 1.4+ , ghc-prim >= 0.5+ , lens-family-core >= 1.2+ , memory >= 0.14+ , pipes >= 4.3+ , pipes-aeson >= 0.4+ , pipes-bytestring >= 2.1+ , pipes-group >= 1.0+ , pipes-parse >= 3.0+ , pipes-safe >= 2.3+ , pipes-text >= 0.0.2.5+ , random >= 1.1+ , reflection >= 2.1+ , symantic-cli >= 2.3.2+ , symantic-document >= 1.5+ , terminal-size >= 0.3+ , text >= 1.2+ , time >= 1.8+ , transformers >= 0.5+ , unix >= 2.7+ , unordered-containers >= 0.2.8
+ src/Hjugement/CLI.hs view
@@ -0,0 +1,78 @@+{-# LANGUAGE AllowAmbiguousTypes #-}+{-# LANGUAGE OverloadedStrings #-}+{-# LANGUAGE NoMonomorphismRestriction #-}+{-# LANGUAGE TypeApplications #-}+{-# LANGUAGE NamedFieldPuns #-}+{-# LANGUAGE UndecidableInstances #-}+{-# OPTIONS_GHC -Wno-missing-signatures #-}+{-# OPTIONS_GHC -Wno-unused-imports #-}+module Hjugement.CLI where++import Control.Applicative (Applicative(..), Alternative(..))+import Control.Monad (Monad(..))+import Data.Bool+import Data.Either (Either(..))+import Data.Function (($), (.))+import Data.Functor ((<$>), (<$))+import Data.Int (Int)+import Data.List.NonEmpty (NonEmpty(..))+import Data.Maybe (Maybe(..), fromMaybe)+import Data.Ord (Ord(..))+import Data.Semigroup (Semigroup(..))+import Data.String (String)+import Data.Text (Text)+import Data.Void (Void)+import Symantic.CLI as CLI+import System.Environment (getArgs)+import System.IO (IO, FilePath, print, stderr, putStrLn)+import Text.Show (Show(..))+import Type.Reflection (Typeable)+import qualified Data.Set as Set+import qualified Data.Text as Text+import qualified Data.Text.Lazy.IO as TL+import qualified Data.Version as Version+import qualified Paths_hjugement_cli as Hjugement+import qualified Symantic.Document as Doc+import qualified System.IO as IO++import Hjugement.CLI.Utils+import Hjugement.CLI.Registrar+import Hjugement.CLI.Trustee+import Hjugement.CLI.MkElection++progname :: Text+progname = "hjugement"+version :: Text+version =+ progname <> "-" <>+ Text.pack (Version.showVersion Hjugement.version)++api =+ program "hjugement" $+ (api_options <?> api_command) <!>+ api_help True <!>+ api_version++api_command =+ rule "COMMAND" $+ api_registrar <!>+ api_trustee <!>+ api_mkelection+run_command opts =+ run_registrar opts :!:+ run_trustee opts :!:+ (run_mkelection :!: run_help api_mkelection)++api_version =+ "Print the version."+ `helps`+ tagged (TagLong "version") nothing+ <.> response @Doc++parseAPI = parser @Void @Doc api $+ run_command :!:+ run_help api :!:+ run_version+ where+ run_version =+ return (Doc.from version <> Doc.newline)
+ src/Hjugement/CLI/MkElection.hs view
@@ -0,0 +1,45 @@+{-# LANGUAGE NoMonomorphismRestriction #-}+{-# LANGUAGE OverloadedStrings #-}+{-# LANGUAGE StrictData #-}+{-# OPTIONS_GHC -Wno-missing-signatures #-}+module Hjugement.CLI.MkElection where++import Control.Applicative (Applicative(..))+import Control.Monad (Monad(..))+import Data.Bool+import Data.Maybe (Maybe(..))+import Data.Function (($))+import Data.Functor ((<$>))+import Data.Semigroup (Semigroup(..))+import Data.String (String)+import Symantic.CLI as CLI+import System.IO (FilePath)+import Text.Show (Show)+import qualified Symantic.Document as Doc+import qualified Voting.Protocol as VP++import Hjugement.CLI.Utils++data MkElection_Options = MkElection_Options+ { mkelection_crypto :: VP.FFC+ , mkelection_template :: FilePath+ , mkelection_uuid :: VP.UUID+ } deriving (Show)++api_mkelection =+ "This command reads and checks "<>fileRef"public_keys.jsons"<>"\+ \ (or "<>fileRef"threshold.json"<>" if it exists).\+ \ It then computes the global election public key\+ \ and generates an "<>fileRef"election.json"<>" file."+ `helps`+ command "mkelection" $+ rule "OPTIONS"+ (MkElection_Options+ <$> option_crypto+ <*> option_template+ <*> option_uuid)+ <?> response @Doc+ <!> api_help False++run_mkelection MkElection_Options{..} =+ return ""
+ src/Hjugement/CLI/Registrar.hs view
@@ -0,0 +1,190 @@+{-# LANGUAGE NoMonomorphismRestriction #-}+{-# LANGUAGE OverloadedStrings #-}+{-# LANGUAGE StrictData #-}+{-# OPTIONS_GHC -Wno-missing-signatures #-}+module Hjugement.CLI.Registrar where++import Control.Applicative (Applicative(..))+import Control.Monad (Monad(..), forM, forM_, join, void)+import Control.Monad.Trans.Class (MonadTrans(..))+import Control.Monad.Trans.State.Strict (runState, runStateT)+import Data.Bool+import Data.ByteString (ByteString)+import Data.Either (Either(..))+import Data.Foldable (Foldable, foldMap, length)+import Data.Function (($), (.), flip)+import Data.Functor ((<$>))+import Data.Int (Int)+import Data.Maybe (Maybe(..), maybe, fromMaybe)+import Data.Ord (Ord(..))+import Data.Proxy (Proxy(..))+import Data.Semigroup (Semigroup(..))+import Data.String (String)+import Data.Text (Text)+import GHC.Natural (minusNatural, minusNaturalMaybe)+import Numeric.Natural (Natural)+import Pipes ((>->))+import Prelude (logBase, ceiling, Num(..), (/), (^), fromIntegral, Double)+import Symantic.CLI as CLI+import Text.Show (Show(..))+import qualified Data.ByteString as BS+import qualified Data.ByteString.Char8 as BS8+import qualified Data.ByteString.Lazy as BSL+import qualified Data.List as List+import qualified Data.Text as T+import qualified Data.Text.Encoding as T+import qualified Data.Text.Lazy as TL+import qualified Data.Text.Lazy.Encoding as TL+import qualified Data.Text.Lazy.IO as TL+import qualified Data.Time as Time+import qualified Lens.Family as Lens+import qualified Lens.Family.State.Strict as Lens+import qualified Pipes as Pip+import qualified Pipes.ByteString as PipBS+import qualified Pipes.Group as Pip+import qualified Pipes.Prelude as Pip+import qualified Pipes.Safe as Pip+import qualified Pipes.Safe.Prelude as Pip+import qualified Pipes.Text as PipText+import qualified Pipes.Text.Encoding as PipText+import qualified Pipes.Text.IO as PipText+import qualified Symantic.Document as Doc+import qualified System.FilePath as FP+import qualified System.IO as IO+import qualified System.Posix as Posix+import qualified System.Random as Rand+import qualified Voting.Protocol as VP++import Hjugement.CLI.Utils++-- ** Type 'Registrar_Options'+data Registrar_Options = Registrar_Options+ { registrar_election_crypto :: VP.FFC+ , registrar_election_uuid :: VP.UUID+ } deriving (Show)++api_registrar =+ "Commands for a registrar."+ `helps`+ command "registrar" $+ rule "PARAMS"+ (Registrar_Options+ <$> option_crypto+ <*> option_uuid+ )+ <?> (+ api_registrar_credentials <!>+ api_registrar_pubkey+ )+ <!> api_help False+run_registrar globOpts =+ (\opts ->+ run_registrar_credentials globOpts opts :!:+ run_registrar_pubkey globOpts opts+ ) :!:+ run_help api_registrar++api_registrar_pubkey =+ "Derive the public key associated to a specific "<>ref"PRIVATE_CRED"<>"."+ `helps`+ command "pubkey" $+ var "PRIVATE_CRED"+ <.> response @Natural+run_registrar_pubkey Global_Options{..} o@Registrar_Options{..} cred =+ return $+ VP.reify registrar_election_crypto $ \(_::Proxy c) ->+ VP.nat $ VP.publicKey $+ VP.credentialSecretKey @c registrar_election_uuid cred++api_registrar_credentials =+ "Generate voters' credentials, either "<>ref "COUNT"<>" sequential identities\+ \ or for all identities on each line of "<>ref "FILE"<>".\+ \\nThree files are created:\n"<>+ Doc.ul+ [ ref"<timestamp>.privcreds" <>+ " listing the secret key of each voter,\+ \ each line formatted as: <Registrar>"<>Doc.space<>"<Credential>.\+ \ It "<>Doc.bold "must be destroyed"<>" after dispatching\+ \ the credentials to the voters."+ , ref"<timestamp>.pubcreds" <>+ " listing the public key of each voter,\+ \ each line formatted as: <PublicKey>.\+ \ It "<>Doc.bold "must be sent"<>" to the election administrator.\+ \ Note that the entries are numerically sorted\+ \ which forgets whose credential the key belongs to."+ , ref"<timestamp>.hashcreds" <>+ " listing the hash of the credential of each voter,\+ \ each line formatted as: <Registrar>"<>Doc.space<>"<SHA256>.\+ \ It is used by the hotline to update the public key on the web server."+ ] `helps`+ command "credentials" $+ (var @Natural "COUNT" <!>+ var @IO.FilePath "FILE")+ <.> response @Doc+run_registrar_credentials+ Global_Options{..}+ o@Registrar_Options{..} =+ run_count :!:+ run_file+ where+ run_count count =+ run_credentials $+ let i0 = firstIdentity count in+ (Right <$>) $ Pip.each $+ T.pack . show+ <$> [i0 .. (i0+count)`minusNatural`1]+ run_file file =+ run_credentials $+ let bytes = Pip.withFile file IO.ReadMode PipBS.fromHandle in+ let idents =+ Lens.view PipText.lines $+ Lens.view (PipText.utf8 . PipText.eof) bytes in+ Pip.concats idents+ run_credentials identsProd = do+ now <- Time.getCurrentTime+ let timestamp = Time.formatTime Time.defaultTimeLocale "%s" now+ let baseFile = global_dir FP.</> timestamp+ VP.reify registrar_election_crypto $ \(crypto::Proxy c) ->+ Pip.runSafeT $ Pip.runEffect $ do+ -- TODO: match err to check utf8 decoding went well+ (pubKeys, err) <- Pip.toListM' $+ identsProd+ >-> Pip.mapM (\ident -> do+ cred <- Pip.liftIO $+ Rand.getStdRandom $ runState $+ VP.randomCredential+ return (ident, cred)+ )+ >-> Pip.tee (+ Pip.map (\(ident, VP.Credential cred) -> [ident, " ", cred])+ >-> writeFileLn 0o400 (baseFile FP.<.>"privcreds")+ )+ >-> Pip.mapM (\(ident, cred) ->+ let secKey = VP.credentialSecretKey @c registrar_election_uuid cred in+ let pubKey = VP.publicKey secKey in+ return (ident, pubKey))+ >-> Pip.tee (+ Pip.map (\(ident, pubKey) ->+ [ident, " ", VP.hexHash $ VP.bytesNat pubKey]+ )+ >-> writeFileLn 0o444 (baseFile FP.<.>"hashcreds")+ )+ >-> Pip.map (\(_ident, pubKey) -> pubKey)+ Pip.each (List.sort pubKeys)+ -- NOTE: numerical sort on Natural (not lexicographic on String)+ -- which forgets in this file the relationship between+ -- the voters' identity and public key.+ -- Unfortunately this requires to accumulates all the pubKey in memory.+ >-> Pip.map (\pubKey -> [T.pack (show (VP.nat pubKey))])+ >-> writeFileLn 0o444 (baseFile FP.<.>"pubcreds")+ return ""++-- | @('firstIdentity' numIdentities)@ returns @(10'^'i0)@ such that+-- @(10'^'i0 '+' numIdentities '<=' 10'^'(i0'+'1))@,+-- that is to say it returns the lowest identity such that+-- the next @numIdentities@ identities+-- all have the same number of digits.+firstIdentity :: Natural -> Natural+firstIdentity n =+ ((10::Natural) ^) $ (ceiling::Double -> Natural) $+ logBase 10 $ (fromIntegral n) / 9
+ src/Hjugement/CLI/Trustee.hs view
@@ -0,0 +1,206 @@+{-# LANGUAGE NoMonomorphismRestriction #-}+{-# LANGUAGE OverloadedStrings #-}+{-# LANGUAGE StrictData #-}+{-# OPTIONS_GHC -Wno-missing-signatures #-}+module Hjugement.CLI.Trustee where++import Control.Applicative (Applicative(..))+import Control.Monad (Monad(..), forM, forM_, join, void)+import Control.Monad.Trans.Class (MonadTrans(..))+import Control.Monad.Trans.State.Strict (runState, runStateT)+import Data.Bits (setBit)+import Data.Bool+import Data.ByteString (ByteString)+import Data.Either (Either(..))+import Data.Eq (Eq(..))+import Data.Foldable (Foldable, foldMap, length, null)+import Data.Function (($), (.), id, flip)+import Data.Functor ((<$>))+import Data.Int (Int)+import Data.Maybe (Maybe(..), maybe, fromMaybe)+import Data.Monoid (Monoid(..))+import Data.Ord (Ord(..))+import Data.Proxy (Proxy(..))+import Data.Semigroup (Semigroup(..))+import Data.String (String)+import Data.Text (Text)+import GHC.Natural (minusNatural, minusNaturalMaybe)+import GHC.Prim (coerce)+import Numeric.Natural (Natural)+import Pipes ((>->))+import Prelude (logBase, ceiling, Num(..), (/), (^), fromIntegral, Double)+import Symantic.CLI as CLI+import Text.Show (Show(..))+import System.IO (IO, FilePath)+import qualified Crypto.Hash as Crypto+import qualified Data.Aeson as JSON+import qualified Data.ByteArray as ByteArray+import qualified Data.ByteString as BS+import qualified Data.ByteString.Char8 as BS8+import qualified Data.ByteString.Lazy as BSL+import qualified Data.List as List+import qualified Data.Text as T+import qualified Data.Text.Encoding as T+import qualified Data.Text.Lazy as TL+import qualified Data.Text.Lazy.Builder as TLB+import qualified Data.Text.Lazy.Builder.Int as TLB+import qualified Data.Text.Lazy.Encoding as TL+import qualified Data.Text.Lazy.IO as TL+import qualified Data.Time as Time+import qualified Lens.Family as Lens+import qualified Lens.Family.State.Strict as Lens+import qualified Pipes as Pip+import qualified Pipes.ByteString as PipBS+import qualified Pipes.Group as Pip+import qualified Pipes.Prelude as Pip+import qualified Pipes.Aeson as PipJSON (DecodingError(..))+import qualified Pipes.Aeson.Unchecked as PipJSON+import qualified Pipes.Safe as Pip+import qualified Pipes.Safe.Prelude as Pip+import qualified Pipes.Text as PipText+import qualified Pipes.Text.Encoding as PipText+import qualified Pipes.Text.IO as PipText+import qualified Symantic.Document as Doc+import qualified System.FilePath as FP+import qualified System.IO as IO+import qualified System.Posix as Posix+import qualified System.Random as Rand+import qualified Voting.Protocol as VP++import Hjugement.CLI.Utils++-- * trustee+data Trustee_Options = Trustee_Options+ { trustee_election_crypto :: VP.FFC+ } deriving (Show)++api_trustee =+ "Commands for a trustee."+ `helps`+ command "trustee" $+ rule "TrusteeOptions"+ (Trustee_Options+ <$> option_crypto+ ) <?> (+ api_trustee_generate <!>+ api_trustee_decrypt+ )+ <!> api_help False+run_trustee globOpts =+ (\opts ->+ run_trustee_generate globOpts opts :!:+ run_trustee_decrypt globOpts opts+ ) :!:+ run_help api_trustee++-- ** generate+api_trustee_generate =+ "Run by a trustee to generate a share of an election key.\+ \ Such a share consists of a private key and a public key with a certificate.\+ \ Generated files are stored in the current directory with\+ \ a name that starts with "<>fileRef "ID"<>",\+ \ where "<>fileRef "ID"<>" is a short fingerprint of the public key.\+ \ The private key is stored in "<>fileRef "ID.privkey"<>" and must be\+ \ secured by the trustee. The public key is stored in "<>fileRef "ID.pubkey"<>" and must\+ \ be sent to the election administrator."+ `helps`+ command "generate" $+ response @()+run_trustee_generate+ Global_Options{..}+ o@Trustee_Options{..} =+ VP.reify trustee_election_crypto $ \(crypto::Proxy c) -> do+ keys@(secKey, pubKey) <- Pip.liftIO $ Rand.getStdRandom $ runState $ do+ secKey <- VP.randomSecretKey @c+ pubKey <- VP.proveIndispensableTrusteePublicKey secKey+ return (secKey, pubKey)+ let pubIdent =+ T.unpack $ T.toUpper $ T.take 8 $+ VP.hexHash $ VP.bytesNat $+ VP.trustee_PublicKey pubKey+ Pip.runSafeT $ Pip.runEffect $ do+ Pip.each [pubIdent] >-> pipeInfo (\ident ->+ "Generated trustee keypair "<>ident<>+ " in "<>(global_dir FP.</> ident)<>".{privkey,pubkey}"+ ) >-> Pip.drain+ Pip.each [secKey] >-> writeJSON 0o400 (global_dir FP.</> pubIdent FP.<.>"privkey")+ Pip.each [pubKey] >-> writeJSON 0o444 (global_dir FP.</> pubIdent FP.<.>"pubkey")+ return ()++-- ** decrypt+data TrusteeDecrypt_Options = TrusteeDecrypt_Options+ { trusteeDecrypt_privkey :: FilePath+ , trusteeDecrypt_url :: FilePath+ } deriving (Show)++api_trustee_decrypt =+ "This command is run by each trustee to perform a partial decryption."+ `helps`+ command "decrypt" $+ rule "TrusteeDecryptOptions"+ (TrusteeDecrypt_Options+ <$> option_privkey+ <*> option_url+ )+ <?> response @(Maybe (VP.DecryptionShare ()))+ where+ option_privkey =+ "Read private key from file "<>ref"FILE"<>"."+ `helps`+ long "privkey" (var "FILE")+ option_url =+ "Download election files from "<>ref"URL"<>"."<>+ "\nDefaults to "<>fileRef "."<>"."+ `helps`+ longOpt "url" "." (var "URL")++run_trustee_decrypt+ Global_Options{..}+ o@Trustee_Options{..}+ TrusteeDecrypt_Options{..} = do+ VP.reify trustee_election_crypto $ \(crypto::Proxy c) -> do+ JSON.eitherDecodeFileStrict' trusteeDecrypt_privkey >>= \case+ Left err -> do+ outputError $+ Doc.from trusteeDecrypt_privkey<>": "<>+ Doc.from err<>"\n"+ Right (secKey::VP.E c) -> do+ let pubKey = VP.publicKey secKey+ let trusteeKeysPath = trusteeDecrypt_url FP.</> "public_keys.jsons"+ -- Check that the public key is amongst the public keys of the election+ (keys, ret) <- Pip.runSafeT $ Pip.runEffect $+ Pip.toListM' $+ readJSON trusteeKeysPath+ >-> Pip.filter ((pubKey ==) . VP.trustee_PublicKey)+ case ret of+ Left err -> outputError err+ Right () | null keys -> outputError $+ "the public key associated with the given secret key "<>+ "is not within the list of public trustee keys of the election.\n"<>+ Doc.ul+ [ "List of trustees' public keys: "<>Doc.from trusteeKeysPath+ , "Trustee's public key: "<>Doc.from (show (VP.nat pubKey))+ ]<>"\n"+ Right () | List.length keys > 1 -> outputError $+ "the public key associated with the given secret key "<>+ "appears more than one time in the list of public trustee keys of the election.\n"<>+ Doc.ul+ [ "List of trustees' public keys: "<>Doc.from trusteeKeysPath+ , "Trustee's public key: "<>Doc.from (show (VP.nat pubKey))+ ]<>"\n"+ Right () -> do+ -- Tally the encrypted ballots+ -- FIXME: actually support fetching through an URL+ let ballotsPath = trusteeDecrypt_url FP.</> "ballots.jsons"+ ((encTally, numBallots), ret) <- Pip.runSafeT $ Pip.runEffect $ do+ Pip.fold'+ (flip VP.insertEncryptedTally)+ VP.emptyEncryptedTally id $+ readJSON ballotsPath+ case ret of+ Left err -> outputError err+ Right () -> do+ decShare <-+ Rand.getStdRandom $ runState $+ VP.proveDecryptionShare encTally secKey+ return $ Just (coerce decShare :: VP.DecryptionShare ())
+ src/Hjugement/CLI/Utils.hs view
@@ -0,0 +1,256 @@+{-# LANGUAGE NoMonomorphismRestriction #-}+{-# LANGUAGE OverloadedStrings #-}+{-# LANGUAGE Rank2Types #-}+{-# LANGUAGE StrictData #-}+{-# LANGUAGE UndecidableInstances #-} -- for VP.Reifies instances+{-# OPTIONS_GHC -Wno-missing-signatures #-}+module Hjugement.CLI.Utils where++import Control.Arrow (left)+import Control.Applicative (Alternative(..))+import Control.Monad (Monad(..), forM_)+import Control.Monad.Trans.State.Strict (StateT(..), evalStateT)+import Data.Bits (setBit)+import Data.Bool+import Data.ByteString (ByteString)+import Data.Either (Either(..))+import Data.Foldable (Foldable)+import Data.Function (($), (.), id)+import Data.Functor ((<$>))+import Data.Maybe (Maybe(..), maybe)+import Data.Monoid (Monoid(..))+import Data.Semigroup (Semigroup(..))+import Data.Text (Text)+import Prelude (max, (-))+import Symantic.CLI as CLI+import System.IO (IO)+import Text.Show (Show(..))+import qualified Crypto.Hash as Crypto+import qualified Data.Aeson as JSON+import qualified Data.ByteArray as ByteArray+import qualified Data.ByteString as BS+import qualified Data.ByteString.Char8 as BS8+import qualified Data.ByteString.Lazy.Char8 as BSL8+import qualified Data.Text as Text+import qualified Data.Text.Encoding as T+import qualified Data.Text.Lazy as TL+import qualified Data.Text.Lazy.Builder as TLB+import qualified Data.Text.Lazy.Builder.Int as TLB+import qualified Lens.Family as Lens+import qualified Lens.Family.State.Strict as Lens+import qualified Pipes as Pip+import qualified Pipes.Aeson as PipJSON (DecodingError(..))+import qualified Pipes.Aeson.Unchecked as PipJSON+import qualified Pipes.ByteString as PipBS+import qualified Pipes.Group as Pip+import qualified Pipes.Parse as Pip+import qualified Pipes.Prelude as Pip+import qualified Pipes.Safe as Pip+import qualified Pipes.Safe.Prelude as Pip+import qualified Symantic.Document as Doc+import qualified System.Console.Terminal.Size as Console+import qualified System.Directory as IO+import qualified System.FilePath as FP+import qualified System.IO as IO+import qualified System.Posix as Posix+import qualified Voting.Protocol as VP++ref = Doc.underline+fileRef = ref+helps = help . Doc.justify+infixr 0 `helps`++-- * Type 'Doc'+type Doc = Doc.Plain TLB.Builder++option_template =+ "Read election template from file "<>ref"FILE"<>"."+ `help`+ longOpt "template" "" (var "FILE")+option_crypto =+ "Take cryptographic parameters from file "<>fileRef "FILE"<>"."+ `help`+ long "crypto" (var "FILE")+instance CLI.IOType VP.FFC+instance CLI.FromSegment VP.FFC where+ fromSegment = JSON.eitherDecodeFileStrict'+instance VP.Reifies c VP.FFC => CLI.FromSegment (VP.E c) where+ fromSegment = JSON.eitherDecodeFileStrict'+option_uuid =+ "UUID of the election."+ `help`+ long "uuid" (var "UUID")+instance CLI.IOType VP.UUID+instance CLI.FromSegment VP.UUID where+ fromSegment = return . left show . VP.readUUID . Text.pack+instance CLI.IOType VP.Credential+instance CLI.FromSegment VP.Credential where+ fromSegment = return . left show . VP.readCredential . Text.pack+instance IOType (VP.DecryptionShare ())+instance Outputable (VP.DecryptionShare ()) where+ output decShare = output $ JSON.encode decShare<>"\n"++api_help full =+ if full+ then+ api_compact <.> response @Doc <!>+ api_full <.> response @Doc+ else+ (api_compact <!> api_full) <.> response @Doc+ where+ api_compact =+ (if full+ then help "Print an uncommented grammar tree to help using this program."+ else id) $+ tagged (TagShort 'h') (just False)+ api_full =+ (if full then help+ "Print a grammar tree to help using this program,\+ \ along with explanations."+ else id) $+ tagged (TagLong "help") (just True)++run_help lay = route :!: route+ where+ route helpInh_full = do+ width <- Just . maybe 80 (max 0 . (\x -> x - 2) . Console.width) <$> Console.size+ return $+ Doc.setWidth width $+ runLayout helpInh_full lay++-- * Type 'Global_Options'+data Global_Options = Global_Options+ { global_dir :: IO.FilePath+ }++api_options =+ rule "OPTIONS" $+ Global_Options+ <$> option_dir+option_dir =+ "Use directory "<>ref"DIR"<>" for reading and writing election files."+ `help`+ toPermDefault (FP.takeDirectory "file")+ ( tagged (TagLong "dir") (var "DIR") `alt`+ env "HJUGEMENT_DIR" )++writeFileLn ::+ Pip.MonadSafe m =>+ Foldable f =>+ Posix.FileMode ->+ IO.FilePath ->+ Pip.Consumer (f Text) m r+writeFileLn fileMode filePath =+ Pip.bracket open close $ \h ->+ Pip.for Pip.cat $ \xs ->+ Pip.liftIO $ do+ forM_ xs $ BS8.hPutStr h . T.encodeUtf8+ BS8.hPutStrLn h ""+ where+ open = Pip.liftIO $ do+ IO.createDirectoryIfMissing True $ FP.takeDirectory filePath+ h <- IO.openFile filePath IO.WriteMode+ return h+ close h = Pip.liftIO $ do+ fd <- Posix.handleToFd h+ Posix.setFdMode fd fileMode+ IO.hClose h++writeJSON ::+ Pip.MonadSafe m =>+ JSON.ToJSON a =>+ Posix.FileMode ->+ IO.FilePath ->+ Pip.Consumer a m r+writeJSON fileMode filePath =+ Pip.bracket open close $ \h ->+ Pip.for Pip.cat $ \a ->+ Pip.liftIO $ do+ BSL8.hPutStr h $ JSON.encode a+ where+ open = Pip.liftIO $ do+ IO.createDirectoryIfMissing True $ FP.takeDirectory filePath+ h <- IO.openFile filePath IO.WriteMode+ return h+ close h = Pip.liftIO $ do+ fd <- Posix.handleToFd h+ Posix.setFdMode fd fileMode+ IO.hClose h++readJSON ::+ Pip.MonadSafe m =>+ JSON.FromJSON a =>+ JSON.ToJSON a =>+ IO.FilePath ->+ Pip.Producer a m (Either Doc ())+readJSON filePath =+ let bytes = Pip.withFile filePath IO.ReadMode PipBS.fromHandle in+ left handleError <$> Lens.view PipJSON.decoded bytes+ where+ handleError (err, _rest) =+ case err of+ PipJSON.AttoparsecError parsingErr ->+ Doc.from filePath <> ": "<>+ Doc.redder "parsing error"<>": "<>+ Doc.from (show parsingErr) <> "\n"+ PipJSON.FromJSONError decodingErr ->+ Doc.from filePath <> ": "<>+ Doc.redder "decoding error"<>": "<>+ Doc.from decodingErr <> "\n"++{-+readJSON' ::+ Pip.MonadSafe m =>+ JSON.FromJSON a =>+ JSON.ToJSON a =>+ IO.FilePath ->+ Pip.Parser a m r -> m r+readJSON' filePath fold =+ let bytes = Pip.withFile filePath IO.ReadMode PipBS.fromHandle in+ evalStateT (Lens.zoom PipJSON.decoded fold) bytes++readJSON'' ::+ Pip.MonadSafe m =>+ JSON.FromJSON a =>+ IO.FilePath ->+ Pip.FreeT (Pip.Producer (Either PipJSON.DecodingError a) m) m ()+readJSON'' filePath =+ let bytes = Pip.withFile filePath IO.ReadMode PipBS.fromHandle in+ parseMany (Pip.parsed_ PipJSON.decode) bytes++parseMany ::+ forall m inp a r.+ Monad m =>+ (Pip.Producer inp m r -> Pip.Producer a m (Pip.Producer inp m r)) ->+ Pip.Producer inp m r ->+ Pip.FreeT (Pip.Producer a m) m r+parseMany f = go0+ where+ go0 ::+ Pip.Producer inp m r ->+ Pip.FreeT (Pip.Producer a m) m r+ go0 p = Pip.FreeT $ do+ Pip.next p >>= \case+ Left r -> return $ Pip.Pure r+ Right (inp, p') -> return $ Pip.Free $ go1 $ Pip.yield inp >> p'+ go1 ::+ Pip.Producer inp m r ->+ Pip.Producer a m (Pip.FreeT (Pip.Producer a m) m r)+ go1 p = go0 <$> f p+-}++pipeInfo ::+ Pip.MonadIO m =>+ Outputable (OnHandle d) =>+ (a -> d) -> Pip.Pipe a a m r+pipeInfo d =+ Pip.for Pip.cat $ \s -> do+ Pip.liftIO $ do+ output $ OnHandle IO.stderr (d s)+ output $ OnHandle IO.stderr '\n'+ Pip.yield s++outputError :: Doc -> IO (Maybe a)+outputError msg = do+ output $ OnHandle @Doc IO.stderr $ Doc.redder "ERROR"<>": "<>msg+ return Nothing
+ src/Main.hs view
@@ -0,0 +1,14 @@+module Main where++import Data.Function (($))+import System.IO (IO)+import qualified Symantic.CLI as CLI+import qualified System.Environment as Env++import Hjugement.CLI++main :: IO ()+main = do+ args <- Env.getArgs+ -- putStrLn $ "args: " <> show args+ parseAPI $ CLI.lexer args
+ stack.yaml view
@@ -0,0 +1,16 @@+resolver: lts-13.19+packages:+- '.'+- location: '../hjugement'+ extra-dep: true+- location: '../hjugement-protocol'+ extra-dep: true+- location: '../../symantic-document'+ extra-dep: true+- location: '../../symantic-cli'+ extra-dep: true+extra-deps:+- pipes-text-0.0.2.5@sha256:16cfd1927817a1c757b15c37ad95c67e819c28b1c4a6ce9757ab15276ec36ac7+allow-newer: true+nix:+ packages: [zlib]