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SickRage/lib/unrar2/windows.py

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# Copyright (c) 2003-2005 Jimmy Retzlaff, 2008 Konstantin Yegupov
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
# Low level interface - see UnRARDLL\UNRARDLL.TXT
from __future__ import generators
import ctypes, ctypes.wintypes
import os, os.path, sys
import Queue
import time
from rar_exceptions import *
ERAR_END_ARCHIVE = 10
ERAR_NO_MEMORY = 11
ERAR_BAD_DATA = 12
ERAR_BAD_ARCHIVE = 13
ERAR_UNKNOWN_FORMAT = 14
ERAR_EOPEN = 15
ERAR_ECREATE = 16
ERAR_ECLOSE = 17
ERAR_EREAD = 18
ERAR_EWRITE = 19
ERAR_SMALL_BUF = 20
ERAR_UNKNOWN = 21
RAR_OM_LIST = 0
RAR_OM_EXTRACT = 1
RAR_SKIP = 0
RAR_TEST = 1
RAR_EXTRACT = 2
RAR_VOL_ASK = 0
RAR_VOL_NOTIFY = 1
RAR_DLL_VERSION = 3
# enum UNRARCALLBACK_MESSAGES
UCM_CHANGEVOLUME = 0
UCM_PROCESSDATA = 1
UCM_NEEDPASSWORD = 2
architecture_bits = ctypes.sizeof(ctypes.c_voidp)*8
dll_name = "unrar.dll"
if architecture_bits == 64:
dll_name = "x64\\unrar64.dll"
try:
unrar = ctypes.WinDLL(os.path.join(os.path.split(__file__)[0], 'UnRARDLL', dll_name))
except WindowsError:
unrar = ctypes.WinDLL(dll_name)
class RAROpenArchiveDataEx(ctypes.Structure):
def __init__(self, ArcName=None, ArcNameW=u'', OpenMode=RAR_OM_LIST):
self.CmtBuf = ctypes.c_buffer(64*1024)
ctypes.Structure.__init__(self, ArcName=ArcName, ArcNameW=ArcNameW, OpenMode=OpenMode, _CmtBuf=ctypes.addressof(self.CmtBuf), CmtBufSize=ctypes.sizeof(self.CmtBuf))
_fields_ = [
('ArcName', ctypes.c_char_p),
('ArcNameW', ctypes.c_wchar_p),
('OpenMode', ctypes.c_uint),
('OpenResult', ctypes.c_uint),
('_CmtBuf', ctypes.c_voidp),
('CmtBufSize', ctypes.c_uint),
('CmtSize', ctypes.c_uint),
('CmtState', ctypes.c_uint),
('Flags', ctypes.c_uint),
('Reserved', ctypes.c_uint*32),
]
class RARHeaderDataEx(ctypes.Structure):
def __init__(self):
self.CmtBuf = ctypes.c_buffer(64*1024)
ctypes.Structure.__init__(self, _CmtBuf=ctypes.addressof(self.CmtBuf), CmtBufSize=ctypes.sizeof(self.CmtBuf))
_fields_ = [
('ArcName', ctypes.c_char*1024),
('ArcNameW', ctypes.c_wchar*1024),
('FileName', ctypes.c_char*1024),
('FileNameW', ctypes.c_wchar*1024),
('Flags', ctypes.c_uint),
('PackSize', ctypes.c_uint),
('PackSizeHigh', ctypes.c_uint),
('UnpSize', ctypes.c_uint),
('UnpSizeHigh', ctypes.c_uint),
('HostOS', ctypes.c_uint),
('FileCRC', ctypes.c_uint),
('FileTime', ctypes.c_uint),
('UnpVer', ctypes.c_uint),
('Method', ctypes.c_uint),
('FileAttr', ctypes.c_uint),
('_CmtBuf', ctypes.c_voidp),
('CmtBufSize', ctypes.c_uint),
('CmtSize', ctypes.c_uint),
('CmtState', ctypes.c_uint),
('Reserved', ctypes.c_uint*1024),
]
def DosDateTimeToTimeTuple(dosDateTime):
"""Convert an MS-DOS format date time to a Python time tuple.
"""
dosDate = dosDateTime >> 16
dosTime = dosDateTime & 0xffff
day = dosDate & 0x1f
month = (dosDate >> 5) & 0xf
year = 1980 + (dosDate >> 9)
second = 2*(dosTime & 0x1f)
minute = (dosTime >> 5) & 0x3f
hour = dosTime >> 11
return time.localtime(time.mktime((year, month, day, hour, minute, second, 0, 1, -1)))
def _wrap(restype, function, argtypes):
result = function
result.argtypes = argtypes
result.restype = restype
return result
RARGetDllVersion = _wrap(ctypes.c_int, unrar.RARGetDllVersion, [])
RAROpenArchiveEx = _wrap(ctypes.wintypes.HANDLE, unrar.RAROpenArchiveEx, [ctypes.POINTER(RAROpenArchiveDataEx)])
RARReadHeaderEx = _wrap(ctypes.c_int, unrar.RARReadHeaderEx, [ctypes.wintypes.HANDLE, ctypes.POINTER(RARHeaderDataEx)])
_RARSetPassword = _wrap(ctypes.c_int, unrar.RARSetPassword, [ctypes.wintypes.HANDLE, ctypes.c_char_p])
def RARSetPassword(*args, **kwargs):
_RARSetPassword(*args, **kwargs)
RARProcessFile = _wrap(ctypes.c_int, unrar.RARProcessFile, [ctypes.wintypes.HANDLE, ctypes.c_int, ctypes.c_char_p, ctypes.c_char_p])
RARCloseArchive = _wrap(ctypes.c_int, unrar.RARCloseArchive, [ctypes.wintypes.HANDLE])
UNRARCALLBACK = ctypes.WINFUNCTYPE(ctypes.c_int, ctypes.c_uint, ctypes.c_long, ctypes.c_long, ctypes.c_long)
RARSetCallback = _wrap(ctypes.c_int, unrar.RARSetCallback, [ctypes.wintypes.HANDLE, UNRARCALLBACK, ctypes.c_long])
RARExceptions = {
ERAR_NO_MEMORY : MemoryError,
ERAR_BAD_DATA : ArchiveHeaderBroken,
ERAR_BAD_ARCHIVE : InvalidRARArchive,
ERAR_EOPEN : FileOpenError,
}
class PassiveReader:
"""Used for reading files to memory"""
def __init__(self, usercallback = None):
self.buf = []
self.ucb = usercallback
def _callback(self, msg, UserData, P1, P2):
if msg == UCM_PROCESSDATA:
data = (ctypes.c_char*P2).from_address(P1).raw
if self.ucb!=None:
self.ucb(data)
else:
self.buf.append(data)
return 1
def get_result(self):
return ''.join(self.buf)
class RarInfoIterator(object):
def __init__(self, arc):
self.arc = arc
self.index = 0
self.headerData = RARHeaderDataEx()
self.res = RARReadHeaderEx(self.arc._handle, ctypes.byref(self.headerData))
if self.res==ERAR_BAD_DATA:
raise IncorrectRARPassword
self.arc.lockStatus = "locked"
self.arc.needskip = False
def __iter__(self):
return self
def next(self):
if self.index>0:
if self.arc.needskip:
RARProcessFile(self.arc._handle, RAR_SKIP, None, None)
self.res = RARReadHeaderEx(self.arc._handle, ctypes.byref(self.headerData))
if self.res:
raise StopIteration
self.arc.needskip = True
data = {}
data['index'] = self.index
data['filename'] = self.headerData.FileName
data['datetime'] = DosDateTimeToTimeTuple(self.headerData.FileTime)
data['isdir'] = ((self.headerData.Flags & 0xE0) == 0xE0)
data['size'] = self.headerData.UnpSize + (self.headerData.UnpSizeHigh << 32)
if self.headerData.CmtState == 1:
data['comment'] = self.headerData.CmtBuf.value
else:
data['comment'] = None
self.index += 1
return data
def __del__(self):
self.arc.lockStatus = "finished"
def generate_password_provider(password):
def password_provider_callback(msg, UserData, P1, P2):
if msg == UCM_NEEDPASSWORD and password!=None:
(ctypes.c_char*P2).from_address(P1).value = password
return 1
return password_provider_callback
class RarFileImplementation(object):
def init(self, password=None):
self.password = password
archiveData = RAROpenArchiveDataEx(ArcNameW=self.archiveName, OpenMode=RAR_OM_EXTRACT)
self._handle = RAROpenArchiveEx(ctypes.byref(archiveData))
self.c_callback = UNRARCALLBACK(generate_password_provider(self.password))
RARSetCallback(self._handle, self.c_callback, 1)
if archiveData.OpenResult != 0:
raise RARExceptions[archiveData.OpenResult]
if archiveData.CmtState == 1:
self.comment = archiveData.CmtBuf.value
else:
self.comment = None
if password:
RARSetPassword(self._handle, password)
self.lockStatus = "ready"
def destruct(self):
if self._handle and RARCloseArchive:
RARCloseArchive(self._handle)
def make_sure_ready(self):
if self.lockStatus == "locked":
raise InvalidRARArchiveUsage("cannot execute infoiter() without finishing previous one")
if self.lockStatus == "finished":
self.destruct()
self.init(self.password)
def infoiter(self):
self.make_sure_ready()
return RarInfoIterator(self)
def read_files(self, checker):
res = []
for info in self.infoiter():
if checker(info) and not info.isdir:
reader = PassiveReader()
c_callback = UNRARCALLBACK(reader._callback)
RARSetCallback(self._handle, c_callback, 1)
tmpres = RARProcessFile(self._handle, RAR_TEST, None, None)
if tmpres==ERAR_BAD_DATA:
raise IncorrectRARPassword
self.needskip = False
res.append((info, reader.get_result()))
return res
def extract(self, checker, path, withSubpath, overwrite):
res = []
for info in self.infoiter():
checkres = checker(info)
if checkres!=False and not info.isdir:
if checkres==True:
fn = info.filename
if not withSubpath:
fn = os.path.split(fn)[-1]
target = os.path.join(path, fn)
else:
raise DeprecationWarning, "Condition callbacks returning strings are deprecated and only supported in Windows"
target = checkres
if overwrite or (not os.path.exists(target)):
tmpres = RARProcessFile(self._handle, RAR_EXTRACT, None, target)
if tmpres==ERAR_BAD_DATA:
raise IncorrectRARPassword
self.needskip = False
res.append(info)
return res