diff --git a/COPYING b/COPYING new file mode 100644 --- /dev/null +++ b/COPYING @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Library General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +this service if you wish), that you receive source code or can get it +if you want it, that you can change the software or use pieces of it +in new free programs; and that you know you can do these things. + + To protect your rights, we need to make restrictions that forbid +anyone to deny you these rights or to ask you to surrender the rights. +These restrictions translate to certain responsibilities for you if you +distribute copies of the software, or if you modify it. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must give the recipients all the rights that +you have. You must make sure that they, too, receive or can get the +source code. And you must show them these terms so they know their +rights. + + We protect your rights with two steps: (1) copyright the software, and +(2) offer you this license which gives you legal permission to copy, +distribute and/or modify the software. + + Also, for each author's protection and ours, we want to make certain +that everyone understands that there is no warranty for this free +software. If the software is modified by someone else and passed on, we +want its recipients to know that what they have is not the original, so +that any problems introduced by others will not reflect on the original +authors' reputations. + + Finally, any free program is threatened constantly by software +patents. We wish to avoid the danger that redistributors of a free +program will individually obtain patent licenses, in effect making the +program proprietary. To prevent this, we have made it clear that any +patent must be licensed for everyone's free use or not licensed at all. + + The precise terms and conditions for copying, distribution and +modification follow. + + GNU GENERAL PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. This License applies to any program or other work which contains +a notice placed by the copyright holder saying it may be distributed +under the terms of this General Public License. The "Program", below, +refers to any such program or work, and a "work based on the Program" +means either the Program or any derivative work under copyright law: +that is to say, a work containing the Program or a portion of it, +either verbatim or with modifications and/or translated into another +language. (Hereinafter, translation is included without limitation in +the term "modification".) Each licensee is addressed as "you". + +Activities other than copying, distribution and modification are not +covered by this License; they are outside its scope. The act of +running the Program is not restricted, and the output from the Program +is covered only if its contents constitute a work based on the +Program (independent of having been made by running the Program). +Whether that is true depends on what the Program does. + + 1. You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. You may modify your copy or copies of the Program or any portion +of it, thus forming a work based on the Program, and copy and +distribute such modifications or work under the terms of Section 1 +above, provided that you also meet all of these conditions: + + a) You must cause the modified files to carry prominent notices + stating that you changed the files and the date of any change. + + b) You must cause any work that you distribute or publish, that in + whole or in part contains or is derived from the Program or any + part thereof, to be licensed as a whole at no charge to all third + parties under the terms of this License. + + c) If the modified program normally reads commands interactively + when run, you must cause it, when started running for such + interactive use in the most ordinary way, to print or display an + announcement including an appropriate copyright notice and a + notice that there is no warranty (or else, saying that you provide + a warranty) and that users may redistribute the program under + these conditions, and telling the user how to view a copy of this + License. (Exception: if the Program itself is interactive but + does not normally print such an announcement, your work based on + the Program is not required to print an announcement.) + +These requirements apply to the modified work as a whole. If +identifiable sections of that work are not derived from the Program, +and can be reasonably considered independent and separate works in +themselves, then this License, and its terms, do not apply to those +sections when you distribute them as separate works. But when you +distribute the same sections as part of a whole which is a work based +on the Program, the distribution of the whole must be on the terms of +this License, whose permissions for other licensees extend to the +entire whole, and thus to each and every part regardless of who wrote it. + +Thus, it is not the intent of this section to claim rights or contest +your rights to work written entirely by you; rather, the intent is to +exercise the right to control the distribution of derivative or +collective works based on the Program. + +In addition, mere aggregation of another work not based on the Program +with the Program (or with a work based on the Program) on a volume of +a storage or distribution medium does not bring the other work under +the scope of this License. + + 3. You may copy and distribute the Program (or a work based on it, +under Section 2) in object code or executable form under the terms of +Sections 1 and 2 above provided that you also do one of the following: + + a) Accompany it with the complete corresponding machine-readable + source code, which must be distributed under the terms of Sections + 1 and 2 above on a medium customarily used for software interchange; or, + + b) Accompany it with a written offer, valid for at least three + years, to give any third party, for a charge no more than your + cost of physically performing source distribution, a complete + machine-readable copy of the corresponding source code, to be + distributed under the terms of Sections 1 and 2 above on a medium + customarily used for software interchange; or, + + c) Accompany it with the information you received as to the offer + to distribute corresponding source code. (This alternative is + allowed only for noncommercial distribution and only if you + received the program in object code or executable form with such + an offer, in accord with Subsection b above.) + +The source code for a work means the preferred form of the work for +making modifications to it. For an executable work, complete source +code means all the source code for all modules it contains, plus any +associated interface definition files, plus the scripts used to +control compilation and installation of the executable. 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Any attempt +otherwise to copy, modify, sublicense or distribute the Program is +void, and will automatically terminate your rights under this License. +However, parties who have received copies, or rights, from you under +this License will not have their licenses terminated so long as such +parties remain in full compliance. + + 5. You are not required to accept this License, since you have not +signed it. However, nothing else grants you permission to modify or +distribute the Program or its derivative works. These actions are +prohibited by law if you do not accept this License. Therefore, by +modifying or distributing the Program (or any work based on the +Program), you indicate your acceptance of this License to do so, and +all its terms and conditions for copying, distributing or modifying +the Program or works based on it. + + 6. Each time you redistribute the Program (or any work based on the +Program), the recipient automatically receives a license from the +original licensor to copy, distribute or modify the Program subject to +these terms and conditions. You may not impose any further +restrictions on the recipients' exercise of the rights granted herein. +You are not responsible for enforcing compliance by third parties to +this License. + + 7. If, as a consequence of a court judgment or allegation of patent +infringement or for any other reason (not limited to patent issues), +conditions are imposed on you (whether by court order, agreement or +otherwise) that contradict the conditions of this License, they do not +excuse you from the conditions of this License. If you cannot +distribute so as to satisfy simultaneously your obligations under this +License and any other pertinent obligations, then as a consequence you +may not distribute the Program at all. For example, if a patent +license would not permit royalty-free redistribution of the Program by +all those who receive copies directly or indirectly through you, then +the only way you could satisfy both it and this License would be to +refrain entirely from distribution of the Program. + +If any portion of this section is held invalid or unenforceable under +any particular circumstance, the balance of the section is intended to +apply and the section as a whole is intended to apply in other +circumstances. + +It is not the purpose of this section to induce you to infringe any +patents or other property right claims or to contest validity of any +such claims; this section has the sole purpose of protecting the +integrity of the free software distribution system, which is +implemented by public license practices. Many people have made +generous contributions to the wide range of software distributed +through that system in reliance on consistent application of that +system; it is up to the author/donor to decide if he or she is willing +to distribute software through any other system and a licensee cannot +impose that choice. + +This section is intended to make thoroughly clear what is believed to +be a consequence of the rest of this License. + + 8. If the distribution and/or use of the Program is restricted in +certain countries either by patents or by copyrighted interfaces, the +original copyright holder who places the Program under this License +may add an explicit geographical distribution limitation excluding +those countries, so that distribution is permitted only in or among +countries not thus excluded. In such case, this License incorporates +the limitation as if written in the body of this License. + + 9. The Free Software Foundation may publish revised and/or new versions +of the General Public License from time to time. Such new versions will +be similar in spirit to the present version, but may differ in detail to +address new problems or concerns. + +Each version is given a distinguishing version number. If the Program +specifies a version number of this License which applies to it and "any +later version", you have the option of following the terms and conditions +either of that version or of any later version published by the Free +Software Foundation. If the Program does not specify a version number of +this License, you may choose any version ever published by the Free Software +Foundation. + + 10. If you wish to incorporate parts of the Program into other free +programs whose distribution conditions are different, write to the author +to ask for permission. For software which is copyrighted by the Free +Software Foundation, write to the Free Software Foundation; we sometimes +make exceptions for this. Our decision will be guided by the two goals +of preserving the free status of all derivatives of our free software and +of promoting the sharing and reuse of software generally. + + NO WARRANTY + + 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY +FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN +OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES +PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED +OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS +TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE +PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, +REPAIR OR CORRECTION. + + 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR +REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING +OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED +TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY +YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER +PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE +POSSIBILITY OF SUCH DAMAGES. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program 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 2 of the License, or + (at your option) any later version. + + This program 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 this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision 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, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This 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 Library General +Public License instead of this License. diff --git a/LICENSE b/LICENSE new file mode 100644 --- /dev/null +++ b/LICENSE @@ -0,0 +1,21 @@ +jarfind - Tool for searching Java classes, fields and members in classfiles and JAR archives +Copyright (c) 2009 Eugene Kirpichov (ekirpichov@gmail.com) + +All code is under the following license unless otherwise noted: + This program 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 2 of the License, or + (at your option) any later version. + + This program 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 this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + A copy of the license can be found in the file COPYING in the + source distribution. + diff --git a/Main.hs b/Main.hs new file mode 100644 --- /dev/null +++ b/Main.hs @@ -0,0 +1,394 @@ +{-# LANGUAGE BangPatterns #-} + +module Main (main) where + +import Codec.Archive.Zip +import qualified Data.ByteString.Lazy as B +import Control.Monad +import Data.List +import Data.Bits +import Data.Maybe +import Data.Char + +import Data.Array.ST +import Data.Array.Unboxed + +import Data.Binary +import Data.Binary.Get + +import System.Console.GetOpt +import System.Environment + +import Text.Regex.PCRE + +bToString :: B.ByteString -> String +bToString = map (chr . fromIntegral) . B.unpack + +bFromString :: String -> B.ByteString +bFromString = B.pack . map (fromIntegral . ord) + +onString :: (String -> String) -> (B.ByteString -> B.ByteString) +onString f = bFromString . f . bToString + +data Access = Public | Private | Protected | Package deriving (Eq) + +instance Show Access where + show Public = "public" + show Private = "private" + show Protected = "protected" + show Package = "" + + +data Class = Class { + clsAccess :: Access, + clsMembers :: [Member], + clsName :: B.ByteString, + clsIsInterface :: Bool +} deriving (Show) + +data Member = Method { mAccess :: Access, mName :: B.ByteString, mSig :: B.ByteString } + | Field { mAccess :: Access, mName :: B.ByteString, mSig :: B.ByteString } + deriving (Show) + +-- Types related to cmdline arguments + +data ClassFileSource = ClassFile { path :: FilePath } + | JarFile { path :: FilePath } + | ClassPath { paths :: [ClassFileSource] } + +data Location = InFile FilePath + | InJar { jarPath :: FilePath, innerPath :: FilePath } + deriving (Show) + +newtype SearchSource = SearchSource (Class->Bool) +data SearchTarget = SearchClass + | SearchMember (Member->Bool) + +data Args = Args { + dataSource :: [ClassFileSource], + searchSource :: SearchSource, + searchTarget :: SearchTarget +} + +data Result = FoundClass Location Class + | FoundMember Location Class Member + deriving (Show) + + +---------------------------------------------------------------- +-- ARGUMENTS PARSING -- +---------------------------------------------------------------- + + +data PlainArgs = PlainArgs { + typeRegex :: Maybe String, + memberRegex :: Maybe String, + typeAccess :: Maybe String, + memberAccess :: Maybe String, + target :: Maybe String +} + +emptyArgs :: PlainArgs +emptyArgs = PlainArgs Nothing Nothing Nothing Nothing Nothing + +data MemberKind = FieldKind | MethodKind deriving (Eq) + +parseArgs :: PlainArgs -> [String] -> Args +parseArgs a paths = Args dataSource (SearchSource typeFilter) searchTarget + where searchTarget = case (memberRegex a,memberAccess a,target a) of + (Nothing,Nothing,Nothing) -> SearchClass + _ -> SearchMember memberFilter + + searchMembers = isJust (memberRegex a) + + typeFilter = accessAndRegex (access (typeAccess a)) (typeRegex a) clsAccess clsName + + memberFilter mem = (memKind `maybeEq` kind mem) + && accessAndRegex (access (memberAccess a)) (memberRegex a) + mAccess mName mem + where kind (Field _ _ _) = FieldKind + kind (Method _ _ _) = MethodKind + + memKind = case (target a) of + Just ('f':_) -> Just FieldKind + Just ('m':_) -> Just MethodKind + _ -> Nothing + + access a = case a of + Just "public" -> Just Public + Just "private" -> Just Private + Just "protected" -> Just Protected + Just "package" -> Just Package + _ -> Nothing + + dataSource = map toDataSource paths + toDataSource p | ".jar" `isSuffixOf` p = JarFile p + | ".class" `isSuffixOf` p = ClassFile p + | ":" `isInfixOf` p = ClassPath . map toDataSource $ (==':') `unjoin` p + | otherwise = error $ "Unsupported datasource type: "++p + + accessAndRegex acc rx getAcc getName x = (acc `maybeEq` (getAcc x)) + && (nameMatchesRegex x) + where nameMatchesRegex x = case rx of + Nothing -> True + Just rx -> getName x =~ rx + + maybeEq Nothing _ = True + maybeEq (Just a) b = a==b + + unjoin :: (a->Bool) -> [a] -> [[a]] + unjoin p s = go [] [] s + where go res cur [] = reverse (cur:res) + go res cur (x:xs) | p x = go (cur:res) [] xs + | otherwise = go res (x:cur) xs + +---------------------------------------------------------------- +-- MAIN -- +---------------------------------------------------------------- +main :: IO () +main = do + (opts, paths, errs) <- getOpt Permute options `liftM` getArgs + let compose = foldr (.) id + case errs of + [] -> run (parseArgs (compose opts emptyArgs) paths) + _ -> mapM_ putStrLn errs >> showHelp + + +options :: [OptDescr (PlainArgs -> PlainArgs)] +options = [ Option ['c'] [] (OptArg (\s a -> a { typeRegex = s }) "RX") + "Search for/in types whose name (with package) contains a match of this regex", + Option ['m'] [] (OptArg (\s a -> a { memberRegex = s }) "RX") + "Search for members whose name contains a match of this regex", + Option [] ["ca"] (OptArg (\s a -> a { typeAccess = s })"ACCESS") + "Search for/in types having the specified access (public/private/protected/package)", + Option [] ["ma"] (OptArg (\s a -> a { memberAccess = s }) "ACCESS") + "Search for members having the specified access (public/private/protected/package)", + Option ['t'] ["target"] (OptArg (\s a -> a { target = s }) "TYPE") + "Search for members of the given type (field=f/method=m)"] + +showHelp :: IO () +showHelp = putStrLn $ usageInfo usage options + where usage="jarf [OPTION]... FILE... - Search for classes/methods/interfaces in JAR file(s)" + +run :: Args -> IO () +run (Args dataS searchS searchT) = do + classes <- parseDataSource dataS + mapM_ (putStrLn . present) . concatMap (search searchS searchT) $ classes + +-- Results presentation + +present :: Result -> String +present (FoundClass loc cls) = presentLoc loc ++ ": " ++ presentClass cls +present (FoundMember loc cls mem) = presentLoc loc ++ ": " ++ + presentClass cls ++ ": " ++ + show (mAccess mem) ++ " " ++ + bToString (mName mem) ++ " :: " ++ + bToString (mSig mem) + +presentLoc :: Location -> String +presentLoc (InFile path) = path +presentLoc (InJar jp ip) = jp ++ "!" ++ ip + +presentClass :: Class -> String +presentClass (Class acc _ name False) = show acc ++ " class " ++ bToString name +presentClass (Class acc _ name True) = show acc ++ " interface " ++ bToString name + +-- Search + +search :: SearchSource -> SearchTarget -> (Location,Class) -> [Result] +search (SearchSource classP) SearchClass (loc,c) = + if (classP c) then [FoundClass loc c] else [] +search (SearchSource classP) (SearchMember memP) (loc,c) = + if (classP c) then [FoundMember loc c mem | mem <- clsMembers c, memP mem] + else [] + + +-- Getting the actuall classes to search in + +parseDataSource :: [ClassFileSource] -> IO [(Location, Class)] +parseDataSource = fmap (map (second parseClassFile)) . fmap concat . sequence . map files + where second f (a,b) = (a, f b) + +files :: ClassFileSource -> IO [(Location, B.ByteString)] +files (ClassFile path) = do + f <- B.readFile path + return [(InFile path, f)] +files (JarFile jar) = do + archive <- toArchive `liftM` B.readFile jar + return [(InJar jar fileName, fromEntry entry) + | entry <- zEntries archive, + let fileName = eRelativePath entry, + ".class" `isSuffixOf` fileName] +files (ClassPath paths) = fmap concat . sequence . map files $ paths + + +---------------------------------------------------------------- +-- CLASS FILE PARSING -- +---------------------------------------------------------------- + +-- Constant pool stuff + +data ConstantPool = ConstantPool { + cpPos :: UArray Word16 Word16, + cpData :: B.ByteString +} + +getUTF8FromCP :: ConstantPool -> Word16 -> B.ByteString +getUTF8FromCP cp@(ConstantPool cpPos cpData) i = res + where pos = cpPos!i + begin = fromIntegral $ pos+3 + len = fromIntegral $ getWord16FromCP cp (pos+1) + res = B.take len (B.drop begin cpData) + +getWord16FromCP :: Integral a => ConstantPool -> a -> Word16 +getWord16FromCP (ConstantPool cpPos cpData) iData = + (do skip (fromIntegral iData); readWord16) `runGet` cpData + +-- The very class file parser + +readByte :: Get Word8 +readByte = get + +readWord16 :: Get Word16 +readWord16 = get + +readInt16 :: Get Int +readInt16 = fromIntegral `liftM` readWord16 + +readWord32 :: Get Word32 +readWord32 = get + +parseClassFile :: B.ByteString -> Class +parseClassFile = runGet classFileParser + +classFileParser :: Get Class +classFileParser = do + skip (4+2+2) -- magic, minor_version, major_version + cpSize <- readWord16 + cp <- parseConstantPool cpSize + accessFlags <- readWord16 + thisClass <- readWord16 + let classNameIndex = getWord16FromCP cp (1 + (cpPos cp)!thisClass) + let className = getUTF8FromCP cp classNameIndex + let access = flagsToAccess accessFlags + let isInterface = (0 /= accessFlags .&. 0x0200) + skip 2 -- super_class + ifCount <- readInt16 -- interfaces_count + skip (2*ifCount) -- u2 interfaces[interfaces_count] + fieldCount <- readInt16 + fields <- replicateM fieldCount (parseMember cp Field decryptType) + methodCount <- readInt16 + methods <- replicateM methodCount (parseMember cp Method decryptSig) + return (Class access (fields++methods) className isInterface) + +parseMember :: ConstantPool -> + (Access -> B.ByteString -> B.ByteString -> Member) -> + (B.ByteString -> B.ByteString) -> + Get Member +parseMember cp ctor decryptor = do + accessFlags <- readWord16 + nameIndex <- readWord16 + descrIndex <- readWord16 + attCount <- readInt16 + replicateM attCount $ do skip 2; attLen <- readWord32; skip (fromIntegral attLen) + return $ ctor (flagsToAccess accessFlags) + (getUTF8FromCP cp nameIndex) + (decryptor (getUTF8FromCP cp descrIndex)) + +-- A strict unboxed list and conversion to an UArray with STUArray's +data List' a = Nil' + | (:!) {-# UNPACK #-} !a + {-# UNPACK #-} !(List' a) +infixr 5 :! +toArray' (lo,hi) list = do + arr <- newArray_ (lo,hi) + fill hi list arr + return arr +fill i list arr = fill' i list + where fill' !i (b:!bs') = writeArray arr i b >> fill' (i-1) bs' + fill' !i Nil' = return () + +parseConstantPool :: Word16 -> Get ConstantPool +parseConstantPool n = do + bs <- getRemainingLazyByteString + cpPosList <- parseConstantPool' (n-1) 0 (0 :! Nil') + cpPosArray <- return $ runSTUArray (toArray' (0,n-1) cpPosList) + return (ConstantPool cpPosArray bs) + + +parseConstantPool' :: Word16 -> Word16 -> List' Word16 -> Get (List' Word16) +parseConstantPool' 0 pos res = return res +parseConstantPool' n pos res = do + tag <- readByte + let skipRet n = do skip n; return n + delta <- fromIntegral `liftM` case tag of + 1 -> do len <- readInt16 -- CONSTANT_Utf8 + skip len + return (len+2) + 2 -> error "Tag 2 is unused" + 3 -> skipRet 4 -- CONSTANT_Integer + 4 -> skipRet 4 -- CONSTANT_Float + 5 -> skipRet 8 -- CONSTANT_Long (2 slots) + 6 -> skipRet 8 -- CONSTANT_Double (2 slots) + 7 -> skipRet 2 -- CONSTANT_Class + 8 -> skipRet 2 -- CONSTANT_String + 9 -> skipRet 4 -- CONSTANT_Fieldref + 10 -> skipRet 4 -- CONSTANT_Methodref + 11 -> skipRet 4 -- CONSTANT_InterfaceMethodref + 12 -> skipRet 4 -- CONSTANT_NameAndType + _ -> error $ "Unknown tag "++show tag++" at position "++show pos++" in CP" + let n' = if (tag==5 || tag==6) then (n-2) else (n-1) + let p = pos+delta+1 + p `seq` case tag of + 5 -> parseConstantPool' n' p (pos :! (0 :! res)) + 6 -> parseConstantPool' n' p (pos :! (0 :! res)) + _ -> parseConstantPool' n' p (pos :! res) + + +-- Field/method type decryption + +decryptType :: B.ByteString -> B.ByteString +decryptType = onString (fst . decryptType') + +decryptType' :: String -> (String, String) +decryptType' "" = ("","") +decryptType' (a:s) = case a of + 'B' -> ("byte",s) + 'C' -> ("char",s) + 'D' -> ("double",s) + 'F' -> ("float",s) + 'I' -> ("int",s) + 'J' -> ("long",s) + 'S' -> ("short",s) + 'Z' -> ("boolean",s) + 'V' -> ("void",s) + '[' -> let (t,s') = decryptType' s in (t++"[]",s') + 'L' -> go "" s + where go c (';':s) = (reverse c, s) + go c ('/':s) = go ('.':c) s + go c (a:s) = go (a:c) s + go _ _ = error $ "Unrecognized type ending with "++s + _ -> error $ "Unrecognized type: "++s + +decryptSig :: B.ByteString -> B.ByteString +decryptSig = onString decryptSig' + +decryptSig' :: String -> String +decryptSig' s = concat (if null parTypes + then ["()"] + else (intersperse " -> " parTypes)) + ++ " -> " ++ retType + where ('(':params, ')':ret) = break (==')') s + retType = fst (decryptType' ret) + parTypes = go [] params + go ps "" = reverse ps + go ps s = let (p, s') = decryptType' s in go (p:ps) s' + + +flagsToAccess :: Word16 -> Access +flagsToAccess w | 0 /= w.&.0x0001 = Public + | 0 /= w.&.0x0002 = Private + | 0 /= w.&.0x0004 = Protected + | otherwise = Package + + diff --git a/Setup.lhs b/Setup.lhs new file mode 100644 --- /dev/null +++ b/Setup.lhs @@ -0,0 +1,3 @@ +#!/usr/bin/env runhaskell +> import Distribution.Simple +> main = defaultMain diff --git a/jarfind.cabal b/jarfind.cabal new file mode 100644 --- /dev/null +++ b/jarfind.cabal @@ -0,0 +1,30 @@ +Name: jarfind +Version: 0.1.0.0 +Cabal-version: >= 1.2 +Build-type: Simple +Synopsis: Tool for searching java classes, members and fields in classfiles and JAR archives +Description: Search classfiles and JARs: like, all public 'close' methods in classes with 'Stream' in their name in a JAR. + Mostly for debugging NoSuchMethodError's etc. resulting from an outdated JAR and alike. +Category: Language, Utils, Development +License: GPL +License-file: LICENSE +Author: Eugene Kirpichov +Maintainer: ekirpichov@gmail.com +Build-Depends: base +Extra-Source-Files: COPYING + +flag splitBase + Description: Choose the new, smaller, split-up base package. + Default: True + +Executable jarf + if flag(splitBase) + Build-depends: base >= 3 + else + Build-depends: base < 3 + Build-depends: binary, bytestring >= 0.9.0, array, zip-archive >= 0.1.1.2, regex-pcre >= 0.94.1 + Hs-Source-Dirs: . + Main-Is: Main.hs + Ghc-Options: -O2 + Extensions: BangPatterns +