From: Ramakrishnan Muthukrishnan Date: Sun, 17 Jul 2016 04:10:02 +0000 (+0530) Subject: hspec tests for single/multi torrent, bencode etc X-Git-Url: https://git.rkrishnan.org/vdrive/%22news.html/something?a=commitdiff_plain;h=850e5bce2491dec8dd4bb50ccae9edebcf8a1f7f;p=functorrent.git hspec tests for single/multi torrent, bencode etc --- diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..b018460 --- /dev/null +++ b/COPYING @@ -0,0 +1,676 @@ +Copyright Ramakrishnan Muthukrishnan (c) 2016 + + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. 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 +. + + 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 +. diff --git a/README.md b/README.md new file mode 100644 index 0000000..1396289 --- /dev/null +++ b/README.md @@ -0,0 +1,5 @@ +# functorrent + +[![Build Status](https://travis-ci.org/vu3rdd/functorrent.png)](https://travis-ci.org/vu3rdd/functorrent) + +TODO Description. diff --git a/Setup.hs b/Setup.hs new file mode 100644 index 0000000..9a994af --- /dev/null +++ b/Setup.hs @@ -0,0 +1,2 @@ +import Distribution.Simple +main = defaultMain diff --git a/data/test1.torrent b/data/test1.torrent new file mode 100644 index 0000000..7a3c0a0 Binary files /dev/null and b/data/test1.torrent differ diff --git a/data/test2.torrent b/data/test2.torrent new file mode 100644 index 0000000..d38a2f6 Binary files /dev/null and b/data/test2.torrent differ diff --git a/data/test3.torrent b/data/test3.torrent new file mode 100644 index 0000000..7e453ce Binary files /dev/null and b/data/test3.torrent differ diff --git a/data/test4.torrent b/data/test4.torrent new file mode 100644 index 0000000..547b223 Binary files /dev/null and b/data/test4.torrent differ diff --git a/functorrent.cabal b/functorrent.cabal new file mode 100644 index 0000000..63ce6d2 --- /dev/null +++ b/functorrent.cabal @@ -0,0 +1,55 @@ +name: functorrent +version: 0.1.0.0 +synopsis: A BitTorrent client +description: Please see README +homepage: https://github.com/vu3rdd/functorrent +license: GPL-3 +license-file: COPYING +author: Ramakrishnan Muthukrishnan +maintainer: ram@rkrishnan.org +copyright: Copyright: (c) 2016 Ramakrishnan Muthukrishnan +category: Network +build-type: Simple +extra-source-files: README +cabal-version: >=1.10 +tested-with: GHC == 7.10.2 + +library + default-language: Haskell2010 + ghc-options: -Wall + hs-source-dirs: src + exposed-modules: FuncTorrent.Bencode + , FuncTorrent.Metainfo + build-depends: base >= 4.7 && < 5 + , bytestring + , containers + , cryptohash + , parsec + +executable functorrent + default-language: Haskell2010 + ghc-options: -threaded -rtsopts -with-rtsopts=-N + hs-source-dirs: src/main + main-is: Main.hs + build-depends: base + , functorrent + +test-suite spec + default-language: Haskell2010 + ghc-options: -Wall + type: exitcode-stdio-1.0 + other-modules: BencodeSpec + , MetainfoSpec + hs-source-dirs: test + main-is: Spec.hs + build-depends: base + , functorrent + , hspec + , bytestring + , containers + , QuickCheck + + +source-repository head + type: git + location: https://github.com/vu3rdd/functorrent diff --git a/src/FuncTorrent/Bencode.hs b/src/FuncTorrent/Bencode.hs new file mode 100644 index 0000000..294ad89 --- /dev/null +++ b/src/FuncTorrent/Bencode.hs @@ -0,0 +1,97 @@ +{- + - Copyright (C) 2015-2016 Ramakrishnan Muthukrishnan + - + - This file is part of FuncTorrent. + - + - FuncTorrent is free software; you can redistribute it and/or modify + - it under the terms of the GNU General Public License as published by + - the Free Software Foundation; either version 3 of the License, or + - (at your option) any later version. + - + - FuncTorrent is distributed in the hope that it will be useful, + - but WITHOUT ANY WARRANTY; without even the implied warranty of + - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + - GNU General Public License for more details. + - + - You should have received a copy of the GNU General Public License + - along with FuncTorrent; if not, see + -} + +{-# LANGUAGE OverloadedStrings #-} +module FuncTorrent.Bencode + (BVal(..) + , bValToInteger + , bstrToString + , decode + , encode + ) where + +import Prelude hiding (length, concat) + +import Data.ByteString (ByteString, length, concat) +import Data.ByteString.Char8 (unpack, pack) +import Data.Map.Strict (Map, fromList, toList) +import Text.ParserCombinators.Parsec +import qualified Text.Parsec.ByteString as ParsecBS + +data BVal = Bint Integer + | Bstr ByteString + | Blist [BVal] + | Bdict (Map String BVal) + deriving (Ord, Eq, Show) + +-- getters +bValToInteger :: BVal -> Maybe Integer +bValToInteger (Bint x) = Just x +bValToInteger _ = Nothing + +bstrToString :: BVal -> Maybe String +bstrToString bval = unpack <$> bValToBytestr bval + where bValToBytestr :: BVal -> Maybe ByteString + bValToBytestr (Bstr bs) = Just bs + bValToBytestr _ = Nothing + +bencStr :: ParsecBS.Parser ByteString +bencStr = do ds <- many1 digit <* char ':' + s <- count (read ds) anyChar + return (pack s) + +bencInt :: ParsecBS.Parser Integer +bencInt = do ds <- between (char 'i') (char 'e') numbers + return (read ds) + where numbers = do d' <- char '-' <|> digit + ds' <- many digit + parseNumber d' ds' + parseNumber '0' [] = return "0" + parseNumber '0' _ = unexpected "numbers cannot be left-padded with zeros" + parseNumber '-' [] = unexpected "sign without any digits" + parseNumber '-' (d'':_) | d'' == '0' = unexpected "numbers cannot be left-padded with zeros" + parseNumber d'' ds'' = return (d'':ds'') + +bencList :: ParsecBS.Parser [BVal] +bencList = between (char 'l') (char 'e') (many bencVal) + +bencDict :: ParsecBS.Parser (Map String BVal) +bencDict = between (char 'd') (char 'e') $ fromList <$> many kvpair + where kvpair = do k <- bencStr + v <- bencVal + return (unpack k, v) + +bencVal :: ParsecBS.Parser BVal +bencVal = Bstr <$> bencStr <|> + Bint <$> bencInt <|> + Blist <$> bencList <|> + Bdict <$> bencDict + +decode :: ByteString -> Either ParseError BVal +decode = parse bencVal "BVal" + +encode :: BVal -> ByteString +encode (Bstr bs) = pack $ show (length bs) ++ ":" ++ unpack bs +encode (Bint i) = pack $ "i" ++ show i ++ "e" +encode (Blist xs) = concat ["l", concat $ map encode xs, "e"] +encode (Bdict d) = concat ["d", concat kvlist, "e"] + where + kvlist :: [ByteString] + kvlist = [encPair kv | kv <- toList d] + encPair (k, v) = concat [encode . Bstr . pack $ k, encode v] diff --git a/src/FuncTorrent/Filesystem.hs b/src/FuncTorrent/Filesystem.hs new file mode 100644 index 0000000..66468c4 --- /dev/null +++ b/src/FuncTorrent/Filesystem.hs @@ -0,0 +1,30 @@ +{- + - Copyright (C) 2015-2016 Ramakrishnan Muthukrishnan + - + - This file is part of FuncTorrent. + - + - FuncTorrent is free software; you can redistribute it and/or modify + - it under the terms of the GNU General Public License as published by + - the Free Software Foundation; either version 3 of the License, or + - (at your option) any later version. + - + - FuncTorrent is distributed in the hope that it will be useful, + - but WITHOUT ANY WARRANTY; without even the implied warranty of + - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + - GNU General Public License for more details. + - + - You should have received a copy of the GNU General Public License + - along with FuncTorrent; if not, see + -} + +module FuncTorrent.Filesystem + (new + , FilesystemState + , getBlock + , putBlock + , getStats + ) where + +data Filesystem = Filesystem { pieces :: [Piece] + , stats :: Stats + diff --git a/src/FuncTorrent/Metainfo.hs b/src/FuncTorrent/Metainfo.hs new file mode 100644 index 0000000..596ad68 --- /dev/null +++ b/src/FuncTorrent/Metainfo.hs @@ -0,0 +1,145 @@ +{- + - Copyright (C) 2015-2016 Ramakrishnan Muthukrishnan + - + - This file is part of FuncTorrent. + - + - FuncTorrent is free software; you can redistribute it and/or modify + - it under the terms of the GNU General Public License as published by + - the Free Software Foundation; either version 3 of the License, or + - (at your option) any later version. + - + - FuncTorrent is distributed in the hope that it will be useful, + - but WITHOUT ANY WARRANTY; without even the implied warranty of + - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + - GNU General Public License for more details. + - + - You should have received a copy of the GNU General Public License + - along with FuncTorrent; if not, see + -} + +{-# LANGUAGE DuplicateRecordFields #-} + +module FuncTorrent.Metainfo + (Info(..) + , Metainfo(..) + , DynamicInfo(..) + , torrentToMetainfo + ) where + +import Prelude hiding (lookup) +import Data.ByteString.Char8 (ByteString, unpack) +import Data.Map as M ((!), lookup) +import Crypto.Hash.SHA1 (hash) +import Data.Maybe (maybeToList) + +import FuncTorrent.Bencode (BVal(..), encode, decode, bstrToString, bValToInteger) + +-- only single file mode supported for the time being. +data Info = Info { pieceLength :: !Integer + , pieces :: !ByteString + , private :: !(Maybe Integer) + , dyninfo :: !DynamicInfo + } deriving (Eq, Show) + +data DynamicInfo = SingleFileInfo { name :: String + , lengthInBytes :: Integer + , md5sum :: Maybe String + } + | MultiFileInfo { dname :: String + , files :: [FileInfo] + } + deriving (Eq, Show) + +data FileInfo = FileInfo { lengthInBytes :: Integer + , md5sum :: Maybe String + , path :: String + } deriving (Eq, Show) + +data Metainfo = Metainfo { info :: !Info + , announceList :: ![String] + , creationDate :: !(Maybe Integer) + , comment :: !(Maybe String) + , createdBy :: !(Maybe String) + , encoding :: !(Maybe String) + , infoHash :: !ByteString + } deriving (Eq, Show) + +mkInfo :: BVal -> Maybe Info +mkInfo (Bdict m) = let (Bint pieceLength') = m ! "piece length" + (Bstr pieces') = m ! "pieces" + private' = Nothing + bdictfiles = lookup "files" m + in + case bdictfiles of + Just fs -> let (Blist files') = fs + (Bstr name') = m ! "name" + in + Just Info { pieceLength = pieceLength' + , pieces = pieces' + , private = private' + , dyninfo = MultiFileInfo { + dname = unpack name', + files = + map (\(Bdict f) -> + let (Just len') = bValToInteger (f ! "length") + (Bstr s') = f ! "path" + in + FileInfo { lengthInBytes = len', + md5sum = Nothing, + path = unpack s' + }) + files' } + } + Nothing -> let (Bstr name') = m ! "name" + (Bint length') = m ! "length" + md5sum' = Nothing + in + Just Info { pieceLength = pieceLength' + , pieces = pieces' + , private = private' + , dyninfo = SingleFileInfo { + name = unpack name', + lengthInBytes = length', + md5sum = md5sum'} + } + +mkInfo _ = Nothing + +mkMetaInfo :: BVal -> Either String Metainfo +mkMetaInfo (Bdict m) = + let (Just info') = mkInfo $ m ! "info" + announce' = lookup "announce" m + announceList' = lookup "announce-list" m + creationDate' = lookup "creation date" m + comment' = lookup "comment" m + createdBy' = lookup "created by" m + encoding' = lookup "encoding" m + in Right Metainfo { + info = info' + , announceList = maybeToList (announce' >>= bstrToString) + ++ getAnnounceList announceList' + , creationDate = bValToInteger =<< creationDate' + , comment = bstrToString =<< comment' + , createdBy = bstrToString =<< createdBy' + , encoding = bstrToString =<< encoding' + , infoHash = hash . encode $ (m ! "info") + } +mkMetaInfo _ = Left "mkMetaInfo: expect an input dict" + +getAnnounceList :: Maybe BVal -> [String] +getAnnounceList Nothing = [] +getAnnounceList (Just (Bint _)) = [] +getAnnounceList (Just (Bstr _)) = [] +getAnnounceList (Just (Blist l)) = map (\s -> case s of + (Bstr s') -> unpack s' + (Blist s') -> case s' of + [Bstr s''] -> unpack s'' + _ -> "" + _ -> "") l +getAnnounceList (Just (Bdict _)) = [] + +torrentToMetainfo :: ByteString -> Either String Metainfo +torrentToMetainfo s = + case decode s of + Right d -> mkMetaInfo d + Left e -> Left $ show e diff --git a/src/main/Main.hs b/src/main/Main.hs new file mode 100644 index 0000000..1f79023 --- /dev/null +++ b/src/main/Main.hs @@ -0,0 +1,8 @@ +module Main where + +import FuncTorrent.Bencode + +import Text.Printf (printf) + +main :: IO () +main = printf "hello world" diff --git a/stack.yaml b/stack.yaml new file mode 100644 index 0000000..3bd7fc6 --- /dev/null +++ b/stack.yaml @@ -0,0 +1,66 @@ +# This file was automatically generated by 'stack init' +# +# Some commonly used options have been documented as comments in this file. +# For advanced use and comprehensive documentation of the format, please see: +# http://docs.haskellstack.org/en/stable/yaml_configuration/ + +# Resolver to choose a 'specific' stackage snapshot or a compiler version. +# A snapshot resolver dictates the compiler version and the set of packages +# to be used for project dependencies. For example: +# +# resolver: lts-3.5 +# resolver: nightly-2015-09-21 +# resolver: ghc-7.10.2 +# resolver: ghcjs-0.1.0_ghc-7.10.2 +# resolver: +# name: custom-snapshot +# location: "./custom-snapshot.yaml" +resolver: nightly-2016-07-10 + +# User packages to be built. +# Various formats can be used as shown in the example below. +# +# packages: +# - some-directory +# - https://example.com/foo/bar/baz-0.0.2.tar.gz +# - location: +# git: https://github.com/commercialhaskell/stack.git +# commit: e7b331f14bcffb8367cd58fbfc8b40ec7642100a +# - location: https://github.com/commercialhaskell/stack/commit/e7b331f14bcffb8367cd58fbfc8b40ec7642100a +# extra-dep: true +# subdirs: +# - auto-update +# - wai +# +# A package marked 'extra-dep: true' will only be built if demanded by a +# non-dependency (i.e. a user package), and its test suites and benchmarks +# will not be run. This is useful for tweaking upstream packages. +packages: +- '.' +# Dependency packages to be pulled from upstream that are not in the resolver +# (e.g., acme-missiles-0.3) +extra-deps: [] + +# Override default flag values for local packages and extra-deps +flags: {} + +# Extra package databases containing global packages +extra-package-dbs: [] + +# Control whether we use the GHC we find on the path +# system-ghc: true +# +# Require a specific version of stack, using version ranges +# require-stack-version: -any # Default +# require-stack-version: ">=1.1" +# +# Override the architecture used by stack, especially useful on Windows +# arch: i386 +# arch: x86_64 +# +# Extra directories used by stack for building +# extra-include-dirs: [/path/to/dir] +# extra-lib-dirs: [/path/to/dir] +# +# Allow a newer minor version of GHC than the snapshot specifies +# compiler-check: newer-minor \ No newline at end of file diff --git a/test/BencodeSpec.hs b/test/BencodeSpec.hs new file mode 100644 index 0000000..d6d2cb5 --- /dev/null +++ b/test/BencodeSpec.hs @@ -0,0 +1,53 @@ +{- + - Copyright (C) 2015-2016 Ramakrishnan Muthukrishnan + - + - This file is part of FuncTorrent. + - + - FuncTorrent is free software; you can redistribute it and/or modify + - it under the terms of the GNU General Public License as published by + - the Free Software Foundation; either version 3 of the License, or + - (at your option) any later version. + - + - FuncTorrent is distributed in the hope that it will be useful, + - but WITHOUT ANY WARRANTY; without even the implied warranty of + - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + - GNU General Public License for more details. + - + - You should have received a copy of the GNU General Public License + - along with FuncTorrent; if not, see + -} + +{-# LANGUAGE OverloadedStrings #-} + +module BencodeSpec where + +import Test.Hspec + +import Data.Map.Strict (fromList) +import FuncTorrent.Bencode (encode, decode, BVal(..)) + +spec :: Spec +spec = + describe "Bencode" $ do + it "encode-strings" $ do + encode (Bstr "") `shouldBe` "0:" + encode (Bstr "spam") `shouldBe` "4:spam" + it "encode-ints" $ do + encode (Bint 0) `shouldBe` "i0e" + encode (Bint 42) `shouldBe` "i42e" + it "encode-lists" $ do + encode (Blist [(Bstr "spam"), (Bstr "eggs")]) `shouldBe` "l4:spam4:eggse" + encode (Blist []) `shouldBe` "le" + it "encode-dict" $ do + encode (Bdict (fromList [("spam", Bstr "eggs")])) `shouldBe` "d4:spam4:eggse" + it "decode-string" $ do + decode "4:spam" `shouldBe` Right (Bstr "spam") + decode "0:" `shouldBe` Right (Bstr "") + it "decode-ints" $ do + decode "i0e" `shouldBe` Right (Bint 0) + decode "i32e" `shouldBe` Right (Bint 32) + it "decode-lists" $ do + decode "l4:spam4:eggse" `shouldBe` Right (Blist [(Bstr "spam"), (Bstr "eggs")]) + decode "le" `shouldBe` Right (Blist []) + it "decode-dicts" $ do + decode "d4:spam4:eggse" `shouldBe` Right (Bdict (fromList [("spam", Bstr "eggs")])) diff --git a/test/MetainfoSpec.hs b/test/MetainfoSpec.hs new file mode 100644 index 0000000..93bf9ab --- /dev/null +++ b/test/MetainfoSpec.hs @@ -0,0 +1,46 @@ +{- + - Copyright (C) 2015-2016 Ramakrishnan Muthukrishnan + - + - This file is part of FuncTorrent. + - + - FuncTorrent is free software; you can redistribute it and/or modify + - it under the terms of the GNU General Public License as published by + - the Free Software Foundation; either version 3 of the License, or + - (at your option) any later version. + - + - FuncTorrent is distributed in the hope that it will be useful, + - but WITHOUT ANY WARRANTY; without even the implied warranty of + - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + - GNU General Public License for more details. + - + - You should have received a copy of the GNU General Public License + - along with FuncTorrent; if not, see + -} + +{-# LANGUAGE OverloadedStrings #-} + +module MetainfoSpec where + +import Test.Hspec + +import FuncTorrent.Metainfo (Info(..), Metainfo(..), DynamicInfo(..), torrentToMetainfo) +import qualified Data.ByteString.Lazy.Char8 as BC (readFile, toStrict) +import qualified Data.ByteString as B + +spec :: Spec +spec = + describe "Bencode" $ do + it "torrent-file-1" $ do + c <- BC.readFile "data/test1.torrent" + let (Right m) = torrentToMetainfo (BC.toStrict c) + length (announceList m) `shouldBe` 1 + pieceLength (info m) `shouldBe` 524288 + pieces (info m) `shouldSatisfy` (\p -> B.length p `mod` 20 == 0) + let (SingleFileInfo name' _ _) = dyninfo $ info m + name' `shouldNotBe` "" + it "torrent-file-4" $ do + c <- BC.readFile "data/test4.torrent" + let (Right m) = torrentToMetainfo (BC.toStrict c) + length (announceList m) `shouldBe` 3 + let (MultiFileInfo _ files') = dyninfo $ info m + length files' `shouldNotBe` 1 diff --git a/test/Spec.hs b/test/Spec.hs new file mode 100644 index 0000000..a824f8c --- /dev/null +++ b/test/Spec.hs @@ -0,0 +1 @@ +{-# OPTIONS_GHC -F -pgmF hspec-discover #-}