# Copyright 2017 Virgil Dupras
# This software is licensed under the "BSD" License as described in the "LICENSE" file,
# which should be included with this package. The terms are also available at
# http://www.hardcoded.net/licenses/bsd_license
from __future__ import unicode_literals
from ctypes import (windll, Structure, byref, c_uint,
create_unicode_buffer, addressof,
GetLastError, FormatError)
from ctypes.wintypes import HWND, UINT, LPCWSTR, BOOL
import os.path as op
from .compat import text_type
kernel32 = windll.kernel32
GetShortPathNameW = kernel32.GetShortPathNameW
shell32 = windll.shell32
SHFileOperationW = shell32.SHFileOperationW
class SHFILEOPSTRUCTW(Structure):
_fields_ = [
("hwnd", HWND),
("wFunc", UINT),
("pFrom", LPCWSTR),
("pTo", LPCWSTR),
("fFlags", c_uint),
("fAnyOperationsAborted", BOOL),
("hNameMappings", c_uint),
("lpszProgressTitle", LPCWSTR),
]
FO_MOVE = 1
FO_COPY = 2
FO_DELETE = 3
FO_RENAME = 4
FOF_MULTIDESTFILES = 1
FOF_SILENT = 4
FOF_NOCONFIRMATION = 16
FOF_ALLOWUNDO = 64
FOF_NOERRORUI = 1024
def get_short_path_name(long_name):
if not long_name.startswith('\\\\?\\'):
long_name = '\\\\?\\' + long_name
buf_size = GetShortPathNameW(long_name, None, 0)
# FIX: https://github.com/hsoft/send2trash/issues/31
# If buffer size is zero, an error has occurred.
if not buf_size:
err_no = GetLastError()
raise WindowsError(err_no, FormatError(err_no), long_name[4:])
output = create_unicode_buffer(buf_size)
GetShortPathNameW(long_name, output, buf_size)
return output.value[4:] # Remove '\\?\' for SHFileOperationW
def send2trash(path):
if not isinstance(path, text_type):
path = text_type(path, 'mbcs')
if not op.isabs(path):
path = op.abspath(path)
path = get_short_path_name(path)
fileop = SHFILEOPSTRUCTW()
fileop.hwnd = 0
fileop.wFunc = FO_DELETE
# FIX: https://github.com/hsoft/send2trash/issues/17
# Starting in python 3.6.3 it is no longer possible to use:
# LPCWSTR(path + '\0') directly as embedded null characters are no longer
# allowed in strings
# Workaround
# - create buffer of c_wchar[] (LPCWSTR is based on this type)
# - buffer is two c_wchar characters longer (double null terminator)
# - cast the address of the buffer to a LPCWSTR
# NOTE: based on how python allocates memory for these types they should
# always be zero, if this is ever not true we can go back to explicitly
# setting the last two characters to null using buffer[index] = '\0'.
buffer = create_unicode_buffer(path, len(path)+2)
fileop.pFrom = LPCWSTR(addressof(buffer))
fileop.pTo = None
fileop.fFlags = FOF_ALLOWUNDO | FOF_NOCONFIRMATION | FOF_NOERRORUI | FOF_SILENT
fileop.fAnyOperationsAborted = 0
fileop.hNameMappings = 0
fileop.lpszProgressTitle = None
result = SHFileOperationW(byref(fileop))
if result:
raise WindowsError(result, FormatError(result), path)
