def from_stream(cls, stream, offset=None):
"""Creates a :class:`DirEntry` object from a stream.
:type stream: :class:`lf.dec.IStream`
:param stream: A stream that contains the directory entry.
:type offset: ``int``
:param offset: The start of the directory entry in :attr:`stream`.
:rtype: :class:`DirEntry`
:returns: The corresponding :class:`DirEntry` object.
"""
if offset is not None:
stream.seek(offset, SEEK_SET)
# end if
values = dir_entry.from_buffer_copy(stream.read(128))
name = bytes(values.name)
if values.name_size <= 64:
name = name[:values.name_size]
# end if
new_name = name.decode("utf_16_le", "ignore")
if new_name:
name = new_name.split("\x00", 1)[0]
# end if
clsid = CLSIDToUUID.from_ctype(values.clsid)
btime = values.btime
try:
btime = FILETIMETodatetime.from_ctype(btime)
except (ValueError, TypeError):
btime = (btime.hi << 32) | btime.lo
# end try
mtime = values.mtime
try:
mtime = FILETIMETodatetime.from_ctype(mtime)
except (ValueError, TypeError):
mtime = (mtime.hi << 32) | mtime.lo
# end try
return DirEntry((
name, values.name_size, values.type, values.color, values.left_sid,
values.right_sid, values.child_sid, clsid, values.state, btime,
mtime, values.stream_sect_offset, values.stream_size
))
def from_stream(cls, stream, offset=None):
"""Creates a :class:`DirEntry` object from a stream.
:type stream: :class:`lf.dec.IStream`
:param stream: A stream that contains the directory entry.
:type offset: ``int``
:param offset: The start of the directory entry in :attr:`stream`.
:rtype: :class:`DirEntry`
:returns: The corresponding :class:`DirEntry` object.
"""
if offset is not None:
stream.seek(offset, SEEK_SET)
# end if
values = dir_entry.from_buffer_copy(stream.read(128))
name = bytes(values.name)
if values.name_size <= 64:
name = name[:values.name_size]
# end if
new_name = name.decode("utf_16_le", "ignore")
if new_name:
name = new_name.split("\x00", 1)[0]
# end if
clsid = CLSIDToUUID.from_ctype(values.clsid)
btime = values.btime
try:
btime = FILETIMETodatetime.from_ctype(btime)
except (ValueError, TypeError):
btime = (btime.hi << 32) | btime.lo
# end try
mtime = values.mtime
try:
mtime = FILETIMETodatetime.from_ctype(mtime)
except (ValueError, TypeError):
mtime = (mtime.hi << 32) | mtime.lo
# end try
return DirEntry((name, values.name_size, values.type, values.color,
values.left_sid, values.right_sid, values.child_sid,
clsid, values.state, btime, mtime,
values.stream_sect_offset, values.stream_size))
def test_from_ctype(self):
ae = self.assertEqual
ar = self.assertRaises
data = b"\x00\x0E\x15\x91\xC4\x95\xC2\x01"
data_bad = b"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
filetime = filetime_le.from_buffer_copy(data)
filetime = FILETIMETodatetime.from_ctype(filetime)
ae(filetime, datetime(2002, 11, 27, 3, 25, 0))
filetime = filetime_le.from_buffer_copy(data_bad)
ar(ValueError, FILETIMETodatetime.from_ctype, filetime)
def test_from_ctype(self):
ae = self.assertEqual
ar = self.assertRaises
data = b"\x00\x0E\x15\x91\xC4\x95\xC2\x01"
data_bad = b"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
filetime = filetime_le.from_buffer_copy(data)
filetime = FILETIMETodatetime.from_ctype(filetime)
ae(filetime, datetime(2002, 11, 27, 3, 25, 0))
filetime = filetime_le.from_buffer_copy(data_bad)
ar(ValueError, FILETIMETodatetime.from_ctype, filetime)
def from_ctype(cls, ctype):
""" Creates a :class:`INFO2Item` object from a ctype.
:type ctype: :class:`~lf.win.shell.recyclebin.ctypes.info2_item`
:param ctype: An info2_item object.
:rtype: :class:`INFO2Item`
:returns: The corresponding :class:`INFO2Item` object.
"""
if ctype.name_asc[0] == 0:
exists = False
start = 1
else:
exists = True
start = 0
# end if
name_asc = bytes(ctype.name_asc)
null_term = name_asc.find(b"\x00", start)
if null_term != -1:
name_asc = name_asc[:null_term]
# end if
name_uni = bytes(ctype.name_uni)
new_name_uni = _utf16_le_decoder(name_uni, "ignore")[0]
if new_name_uni:
name_uni = new_name_uni.split("\x00", 1)[0]
else:
name_uni = name_uni.split(b"\x00", 1)[0]
# end if
try:
dtime = FILETIMETodatetime.from_ctype(ctype.dtime)
except ValueError:
dtime = (ctype.dtime.hi << 32) | ctype.dtime.lo
# end try
return cls((
name_asc, ctype.id, ctype.drive_num, dtime, ctype.file_size,
name_uni, exists
))
def from_stream(cls, stream, offset=None):
"""Creates a :class:`CatalogEntry` object from a stream.
:type stream: :class:`~lf.dec.IStream`
:param stream: A stream that contains the structure.
:type offset: ``int``
:param offset: The start of the structure in :attr:`stream`.
:rtype: :class:`CatalogEntry`
:returns: The corresponding :class:`CatalogEntry` object.
"""
if offset is not None:
stream.seek(offset, SEEK_SET)
else:
offset = stream.tell()
# end if
entry = catalog_entry_header.from_buffer_copy(stream.read(16))
if entry.size > 16:
file_name = stream.read(entry.size - 16)
new_file_name = _utf16_le_decoder(file_name, "ignore")[0]
if new_file_name:
file_name = new_file_name.split("\x00", 1)[0]
# end if
else:
file_name = None
# end if
try:
mtime = FILETIMETodatetime.from_ctype(entry.mtime)
except (TypeError, ValueError):
mtime = (entry.mtime.hi << 32) | entry.mtime.lo
# end try
stream_name = "{0}".format(entry.id)
stream_name = stream_name[::-1]
return cls((entry.size, entry.id, mtime, file_name, stream_name))
def from_stream(cls, stream, offset=None):
"""Creates a :class:`CatalogEntry` object from a stream.
:type stream: :class:`~lf.dec.IStream`
:param stream: A stream that contains the structure.
:type offset: ``int``
:param offset: The start of the structure in :attr:`stream`.
:rtype: :class:`CatalogEntry`
:returns: The corresponding :class:`CatalogEntry` object.
"""
if offset is not None:
stream.seek(offset, SEEK_SET)
else:
offset = stream.tell()
# end if
entry = catalog_entry_header.from_buffer_copy(stream.read(16))
if entry.size > 16:
file_name = stream.read(entry.size - 16)
new_file_name = _utf16_le_decoder(file_name, "ignore")[0]
if new_file_name:
file_name = new_file_name.split("\x00", 1)[0]
# end if
else:
file_name = None
# end if
try:
mtime = FILETIMETodatetime.from_ctype(entry.mtime)
except (TypeError, ValueError):
mtime = (entry.mtime.hi << 32) | entry.mtime.lo
# end try
stream_name = "{0}".format(entry.id)
stream_name = stream_name[::-1]
return cls((entry.size, entry.id, mtime, file_name, stream_name))
def from_ctype(cls, ctype):
""" Creates a :class:`INFO2Item` object from a ctype.
:type ctype: :class:`~lf.win.shell.recyclebin.ctypes.info2_item`
:param ctype: An info2_item object.
:rtype: :class:`INFO2Item`
:returns: The corresponding :class:`INFO2Item` object.
"""
if ctype.name_asc[0] == 0:
exists = False
start = 1
else:
exists = True
start = 0
# end if
name_asc = bytes(ctype.name_asc)
null_term = name_asc.find(b"\x00", start)
if null_term != -1:
name_asc = name_asc[:null_term]
# end if
name_uni = bytes(ctype.name_uni)
new_name_uni = _utf16_le_decoder(name_uni, "ignore")[0]
if new_name_uni:
name_uni = new_name_uni.split("\x00", 1)[0]
else:
name_uni = name_uni.split(b"\x00", 1)[0]
# end if
try:
dtime = FILETIMETodatetime.from_ctype(ctype.dtime)
except ValueError:
dtime = (ctype.dtime.hi << 32) | ctype.dtime.lo
# end try
return cls((name_asc, ctype.id, ctype.drive_num, dtime,
ctype.file_size, name_uni, exists))
