From: Michael Orlitzky Date: Tue, 18 Aug 2009 20:00:06 +0000 (-0400) Subject: Initial commit. X-Git-Url: https://gitweb.michael.orlitzky.com/?p=dead%2Fhtnef.git;a=commitdiff_plain;h=d12214d338bba78ccfe3b852e8de1cb13c3e50da Initial commit. --- d12214d338bba78ccfe3b852e8de1cb13c3e50da diff --git a/makefile b/makefile new file mode 100644 index 0000000..94bbbdc --- /dev/null +++ b/makefile @@ -0,0 +1,15 @@ +all: htnef + +htnef: src/*.hs src/tnef/*.hs + ghc -O2 -Wall --make -fglasgow-exts -o bin/htnef src/*.hs src/tnef/*.hs + +profile: src/*.hs src/tnef/*.hs + ghc -O2 -Wall -prof -auto-all --make -fglasgow-exts -o bin/htnef src/*.hs src/tnef/*.hs + +clean: + rm -f bin/htnef + rm -f src/*.hi + rm -f src/*.o + rm -f src/tnef/*.hi + rm -f src/tnef/*.o + rm -f htnef.prof diff --git a/src/htnef.hs b/src/htnef.hs new file mode 100644 index 0000000..8163644 --- /dev/null +++ b/src/htnef.hs @@ -0,0 +1,44 @@ +-- +-- htnef, a program to do things to TNEF files. +-- +-- Copyright Michael Orlitzky +-- +-- http://michael.orlitzky.com/ +-- +-- 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 3 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. +-- +-- http://www.fsf.org/licensing/licenses/gpl.html + +import Data.Binary +import System.Environment (getArgs) +import Tnef.File + + +-- Sequential IO +-- Perform x, ignoring the result. +-- Then return the result of doing the rest of the operations, +-- which will be a single IO (). This forces evaluation +-- of a list of IOs, i.e. [IO ()] +sequential_io :: [IO ()] -> IO () +sequential_io [] = return () +sequential_io (x:xs) = do + x + sequential_io xs + + +-- Decode whatever file is passed on the command line. +main :: IO () +main = do + args <- getArgs + tf :: TnefFile <- decodeFile (args !! 0) + putStrLn (show tf) -- Dump the data... + sequential_io (write_tnef_file tf) -- And write the attachments + \ No newline at end of file diff --git a/src/tnef/attachment.hs b/src/tnef/attachment.hs new file mode 100644 index 0000000..7526d0e --- /dev/null +++ b/src/tnef/attachment.hs @@ -0,0 +1,65 @@ +-- +-- Copyright Michael Orlitzky +-- +-- http://michael.orlitzky.com/ +-- +-- 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 3 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. +-- +-- http://www.fsf.org/licensing/licenses/gpl.html +-- + +module Tnef.Attachment where + +import Tnef.Object + +data TnefAttachment = TnefAttachment { att_mod_date :: TnefObject, + att_data :: TnefObject, + att_file_name :: TnefObject, + att_meta_file :: TnefObject, + att_attachment :: TnefObject } + | NilAttachment + deriving (Show) + + +get_attachment_list :: [TnefObject] -> [TnefAttachment] +get_attachment_list [] = [] +get_attachment_list [Nil] = [] +get_attachment_list (x:xs) + | (show (obj_name x) == "Attachment Rendering Data") = (make_attachment xs) : get_attachment_list xs + | otherwise = get_attachment_list xs + + +make_attachment :: [TnefObject] -> TnefAttachment +make_attachment xs + | length xs < 5 = NilAttachment + | otherwise = TnefAttachment m d f mf a + where + m = get_first_with_name xs "Attachment Modification Date" + d = get_first_with_name xs "Attachment Data" + f = get_first_with_name xs "Attachment File Name" + mf = get_first_with_name xs "Attachment Meta File" + a = get_first_with_name xs "Attachment" + +safe_head :: [TnefObject] -> TnefObject +safe_head xs + | ((length xs) == 0) = Nil + | otherwise = head xs + + +get_first_with_name :: [TnefObject] -> String -> TnefObject +get_first_with_name xs name = + safe_head (dropWhile ((/= name) . show . obj_name) xs) + + +write_attachment :: TnefAttachment -> IO () +write_attachment NilAttachment = putStrLn "NilAttachment" +write_attachment x = do + write_tnef_object (show_data (att_file_name x)) (att_data x) diff --git a/src/tnef/file.hs b/src/tnef/file.hs new file mode 100644 index 0000000..d0288b0 --- /dev/null +++ b/src/tnef/file.hs @@ -0,0 +1,85 @@ +-- +-- Copyright Michael Orlitzky +-- +-- http://michael.orlitzky.com/ +-- +-- 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 3 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. +-- +-- http://www.fsf.org/licensing/licenses/gpl.html +-- + +module Tnef.File where + +import Data.Binary +import qualified Data.Binary.Get as BinaryGet +import qualified Data.Binary.Put as BinaryPut +import Data.Int (Int64) +import Tnef.Attachment +import Tnef.Object + + +-- A TNEF "file" has a signature at the top which should be the same +-- for all TNEF files. There's also a "key," which probably does +-- something, and looks to be unique. After that, there's a variable +-- number of objects (whose structure can be seen in TnefObject). The +-- "total bytes" thing is not part of the file. I'm just using it to +-- keep track of the bytes read for now (to make sure it equals the +-- size of the file when we're done). +data TnefFile = TnefFile { signature :: Word32, + key :: Word16, + first_object :: TnefObject, + total_bytes :: Int64 } + + +-- Magicest of numbers +-- Important: Int doesn't guarantee 32 bits, so we +-- need to use the Integer type here. +tnef_signature :: Integer +tnef_signature = 0x223e9f78 + + + +instance Show TnefFile where + show x = "Signature: " ++ (show (signature x)) ++ " (Correct: " ++ (show tnef_signature) ++ ")\n" ++ + "Key: " ++ (show (key x)) ++ "\n" ++ + concat (map show (get_object_list x)) -- Show the objects, one at a time + + +-- Recursively collect an array of objects. It dies +-- on the last one, which has no next_object property. +-- Help? +get_object_list :: TnefFile -> [TnefObject] +get_object_list x = get_successive_objects (first_object x) + + +get_successive_objects :: TnefObject -> [TnefObject] +get_successive_objects Nil = [Nil] +get_successive_objects x = (x : (get_successive_objects (next_object x))) + + +instance Binary TnefFile where + put _ = do BinaryPut.putWord8 0 + get = do + signature_word <- BinaryGet.getWord32host + key_word <- BinaryGet.getWord16host + first_object_word <- get :: Get TnefObject + total_bytes_word <- BinaryGet.bytesRead + return (TnefFile { signature = signature_word, + key = key_word, + first_object = first_object_word, + total_bytes = total_bytes_word }) + + +write_tnef_file :: TnefFile -> [IO ()] +write_tnef_file x = do + let objects = get_object_list x + let attachments = get_attachment_list objects + map write_attachment attachments diff --git a/src/tnef/object.hs b/src/tnef/object.hs new file mode 100644 index 0000000..0011ee5 --- /dev/null +++ b/src/tnef/object.hs @@ -0,0 +1,119 @@ +-- +-- Copyright Michael Orlitzky +-- +-- http://michael.orlitzky.com/ +-- +-- 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 3 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. +-- +-- http://www.fsf.org/licensing/licenses/gpl.html +-- + +module Tnef.Object where + +import Control.Monad (replicateM) +import Data.Binary +import qualified Data.Binary.Get as BinaryGet +import qualified Data.Binary.Put as BinaryPut +import qualified Data.ByteString.Lazy as BS +import Data.Char +import Data.Word +import Tnef.ObjectName +import Tnef.ObjectLvl + + +-- The only tricky part here is the "chained" TnefObjects. +-- Each object contains the next one. It's like that because +-- I couldn't figure out how to parse an unknown number of +-- objects using Binary.Get. +data TnefObject = TnefObject { obj_lvl :: TnefObjectLvl, + obj_name :: TnefObjectName, + obj_type :: Word16, + obj_length :: Word32, + obj_data :: [Word8], + obj_checksum :: Word16, + next_object :: TnefObject } + | Nil + + +instance Show TnefObject where + show Nil = "Nil" + show x = "" ++ "\n" ++ + " Level: " ++ (show (obj_lvl x)) ++ "\n" ++ + " Name: " ++ (show (obj_name x)) ++ "\n" ++ + " Type: " ++ (show (obj_type x)) ++ "\n" ++ + " Data: " ++ (show_data x) ++ "\n" ++ + " Checksum: " ++ (show (obj_checksum x)) ++ " (Actual: " ++ (show (checksum (obj_data x))) ++ ")\n" ++ + "\n" + +drop_null_byte :: [Word8] -> [Word8] +drop_null_byte = takeWhile (/= 0) + +show_data :: TnefObject -> String +show_data Nil = "" +show_data x + | ((show n) == "Attachment Data") = "(Binary)" + | ((show n) == "Date Sent") = show (obj_data x) + | ((show n) == "Date Received") = show (obj_data x) + | ((show n) == "Date Modified") = show (obj_data x) + | ((show n) == "Attachment Modification Date") = show (obj_data x) + | otherwise = t + where + n = (obj_name x) + t = (map (chr . word8_to_int) (drop_null_byte (obj_data x))) + + +-- Just sum up the values of the bytes, and take that +-- value mod 65536 at the end. (checksum obj_data) should +-- equal the value of obj_checksum for each TnefObject. +checksum :: [Word8] -> Int +checksum x = (foldr (+) 0 (map word8_to_int x)) `mod` 0x10000 + + +-- Just for convenience +word8_to_int :: Word8 -> Int +word8_to_int x = (fromIntegral x) + + +instance Binary TnefObject where + put _ = do BinaryPut.putWord8 0 + get = do + obj_lvl_word <- BinaryGet.getWord8 + obj_name_word <- BinaryGet.getWord16host + obj_type_word <- BinaryGet.getWord16host + obj_length_word <- BinaryGet.getWord32host + -- This pulls in obj_length bytes of data as a [Word8] + obj_data_word <- replicateM (fromIntegral obj_length_word) BinaryGet.getWord8 + obj_checksum_word <- BinaryGet.getWord16host + next_object_word <- get_next_tnef_object + return (TnefObject { obj_lvl = (word_to_lvl obj_lvl_word), + obj_name = (word_to_name obj_name_word), + obj_type = obj_type_word, + obj_length = obj_length_word, + obj_data = obj_data_word, + obj_checksum = obj_checksum_word, + next_object = next_object_word }) + + +-- If there's no more data, return Nil as the "next" object. +get_next_tnef_object :: Get TnefObject +get_next_tnef_object = do + is_empty <- BinaryGet.isEmpty + if is_empty + then return Nil + else (get :: Get TnefObject) + + +write_tnef_object :: String -> TnefObject -> IO () +write_tnef_object _ Nil = return () +write_tnef_object path x + | ((show n) == "Attachment Data") = BS.writeFile path (BS.pack (obj_data x)) + | otherwise = return () + where n = (obj_name x) diff --git a/src/tnef/object_lvl.hs b/src/tnef/object_lvl.hs new file mode 100644 index 0000000..6690c1c --- /dev/null +++ b/src/tnef/object_lvl.hs @@ -0,0 +1,37 @@ +-- +-- Copyright Michael Orlitzky +-- +-- http://michael.orlitzky.com/ +-- +-- 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 3 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. +-- +-- http://www.fsf.org/licensing/licenses/gpl.html +-- + +module Tnef.ObjectLvl where + +import Data.Word + +-- TNEF "Levels". Not sure why they're special, but +-- one is attached to every TnefObject. +data TnefObjectLvl = TnefObjectLvl { code :: Integer, + desc :: String } +instance Show TnefObjectLvl where + show = desc + + +tnef_object_lvls :: [TnefObjectLvl] +tnef_object_lvls = [ TnefObjectLvl 0x01 "Message", + TnefObjectLvl 0x02 "Attachment" ] + +-- I want to marry list comprehensions +word_to_lvl :: Word8 -> TnefObjectLvl +word_to_lvl c = head [ x | x <- tnef_object_lvls, (code x) == read (show c)] diff --git a/src/tnef/object_name.hs b/src/tnef/object_name.hs new file mode 100644 index 0000000..4042aa8 --- /dev/null +++ b/src/tnef/object_name.hs @@ -0,0 +1,68 @@ +-- +-- Copyright Michael Orlitzky +-- +-- http://michael.orlitzky.com/ +-- +-- 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 3 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. +-- +-- http://www.fsf.org/licensing/licenses/gpl.html +-- + +module Tnef.ObjectName where + +import Data.Word + +-- These are the "names" for TNEF objects. They more or less specify +-- what type of object you've got, so I'm not sure what the "type" +-- field is for as a result. +data TnefObjectName = TnefObjectName { code :: Integer, + desc :: String } +instance Show TnefObjectName where + show = desc + + +tnef_object_names :: [TnefObjectName] +tnef_object_names = [ TnefObjectName 0x0000 "Owner", + TnefObjectName 0x0001 "Sent For", + TnefObjectName 0x0002 "Delegate", + TnefObjectName 0x0006 "Date Start", + TnefObjectName 0x0007 "Date End", + TnefObjectName 0x0008 "Owner Appointment ID", + TnefObjectName 0x0009 "Response Requested", + TnefObjectName 0x8000 "From", + TnefObjectName 0x8004 "Subject", + TnefObjectName 0x8005 "Date Sent", + TnefObjectName 0x8006 "Date Received", + TnefObjectName 0x8007 "Message Status", + TnefObjectName 0x8008 "Message Class", + TnefObjectName 0x8009 "Message ID", + TnefObjectName 0x800a "Parent ID", + TnefObjectName 0x800b "Conversation ID", + TnefObjectName 0x800c "Body", + TnefObjectName 0x800d "Priority", + TnefObjectName 0x800f "Attachment Data", + TnefObjectName 0x8010 "Attachment File Name", + TnefObjectName 0x8011 "Attachment Meta File", + TnefObjectName 0x8012 "Attachment Creation Date", + TnefObjectName 0x8013 "Attachment Modification Date", + TnefObjectName 0x8020 "Date Modified", + TnefObjectName 0x9001 "Attachment Transport Filename", + TnefObjectName 0x9002 "Attachment Rendering Data", + TnefObjectName 0x9003 "MAPI Properties", + TnefObjectName 0x9004 "Recipients", + TnefObjectName 0x9005 "Attachment", + TnefObjectName 0x9006 "TNEF Version", + TnefObjectName 0x9007 "OEM Codepage", + TnefObjectName 0x9008 "Original Message Class" ] + + +word_to_name :: Word16 -> TnefObjectName +word_to_name c = head [ x | x <- tnef_object_names, (code x) == read (show c)] diff --git a/test/body.tnef b/test/body.tnef new file mode 100644 index 0000000..06ac6e1 Binary files /dev/null and b/test/body.tnef differ diff --git a/test/data-before-name.tnef b/test/data-before-name.tnef new file mode 100644 index 0000000..81ca5d6 Binary files /dev/null and b/test/data-before-name.tnef differ diff --git a/test/multi-name-property.tnef b/test/multi-name-property.tnef new file mode 100644 index 0000000..5d70e3a Binary files /dev/null and b/test/multi-name-property.tnef differ diff --git a/test/two-files.tnef b/test/two-files.tnef new file mode 100644 index 0000000..b33b64d Binary files /dev/null and b/test/two-files.tnef differ diff --git a/test/ytnef_outlook_2k3_appointment.tnef b/test/ytnef_outlook_2k3_appointment.tnef new file mode 100644 index 0000000..91496f7 Binary files /dev/null and b/test/ytnef_outlook_2k3_appointment.tnef differ diff --git a/test/ytnef_random_sample.tnef b/test/ytnef_random_sample.tnef new file mode 100644 index 0000000..b9f6295 Binary files /dev/null and b/test/ytnef_random_sample.tnef differ