def GetHwndIcon(hWnd):
"""
Get a wx.Icon from a window through its hwnd window handle
"""
hIcon = DWORD()
res = SendMessageTimeout(hWnd, WM_GETICON, ICON_SMALL, 0, SMTO_ABORTIFHUNG,
1000, byref(hIcon))
if res == 0:
hIcon.value = 0
if hIcon.value < 10:
hIcon.value = GetClassLong(hWnd, GCL_HICONSM)
if hIcon.value == 0:
res = SendMessageTimeout(hWnd, WM_GETICON, ICON_BIG, 0,
SMTO_ABORTIFHUNG, 1000, byref(hIcon))
if res == 0:
hIcon.value = 0
if hIcon.value < 10:
hIcon.value = GetClassLong(hWnd, GCL_HICON)
if hIcon.value != 0:
icon = wx.NullIcon
value = hIcon.value
# ugly fix for "OverflowError: long int too large to convert to int"
if value & 0x80000000:
value = -((value ^ 0xffffffff) + 1)
icon.SetHandle(value)
icon.SetSize((16, 16))
return icon
else:
return None
def StopDependentServices(self):
# Pass a zero-length buffer to get the required buffer size.
dwBytesNeeded = DWORD()
dwCount = DWORD()
if EnumDependentServices(
self.schService,
SERVICE_ACTIVE,
None,
0,
byref(dwBytesNeeded),
byref(dwCount)
):
# If the Enum call succeeds, then there are no dependent
# services, so do nothing.
return True
if GetLastError() != ERROR_MORE_DATA:
return False # Unexpected error
# Allocate a buffer for the dependencies.
lpDependencies = cast(
HeapAlloc(
GetProcessHeap(),
HEAP_ZERO_MEMORY,
dwBytesNeeded
),
LPENUM_SERVICE_STATUS
)
if not lpDependencies:
return False
for i in range(dwCount):
#ess = *(lpDependencies + i)
# Open the service.
hDepService = OpenService(
self.schSCManager,
ess.lpServiceName,
SERVICE_STOP | SERVICE_QUERY_STATUS
)
if not hDepService:
return False
try:
# Send a stop code.
if not ControlService(
hDepService,
SERVICE_CONTROL_STOP,
(LPSERVICE_STATUS) &ssp
):
return False
# Wait for the service to stop.
while ssStatus.dwCurrentState != SERVICE_STOPPED:
Sleep(ssStatus.dwWaitHint)
ssStatus = self.GetStatus()
if ssStatus.dwCurrentState == SERVICE_STOPPED:
break
if GetTickCount() - dwStartTime > dwTimeout:
return False
finally:
# Always release the service handle.
CloseServiceHandle(hDepService)
return True
def BestWindowFromPoint(point):
x, y = point
foundWindow = WindowFromPoint(POINT(x, y))
hWnds = GetWindowChildsList(GetAncestor(foundWindow, GA_ROOT), True)
if not hWnds:
return foundWindow
foundWindowArea = sys.maxint
rect = RECT()
clientPoint = POINT()
for hWnd in hWnds:
GetWindowRect(hWnd, byref(rect))
if (
x >= rect.left and
x <= rect.right and
y >= rect.top and
y <= rect.bottom
):
hdc = GetDC(hWnd)
clientPoint.x, clientPoint.y = x, y
ScreenToClient(hWnd, byref(clientPoint))
if PtVisible(hdc, clientPoint.x, clientPoint.y):
area = (rect.right - rect.left) * (rect.bottom - rect.top)
if area < foundWindowArea:
foundWindow = hWnd
foundWindowArea = area
ReleaseDC(hWnd, hdc)
return foundWindow
def BestWindowFromPoint(point):
x, y = point
foundWindow = WindowFromPoint(POINT(x, y))
hWnds = GetWindowChildsList(GetAncestor(foundWindow, GA_ROOT), True)
if not hWnds:
return foundWindow
foundWindowArea = sys.maxint
rect = RECT()
clientPoint = POINT()
for hWnd in hWnds:
GetWindowRect(hWnd, byref(rect))
if (
x >= rect.left
and x <= rect.right
and y >= rect.top
and y <= rect.bottom
):
hdc = GetDC(hWnd)
clientPoint.x, clientPoint.y = x, y
ScreenToClient(hWnd, byref(clientPoint))
if PtVisible(hdc, clientPoint.x, clientPoint.y):
area = (rect.right - rect.left) * (rect.bottom - rect.top)
if area < foundWindowArea:
foundWindow = hWnd
foundWindowArea = area
ReleaseDC(hWnd, hdc)
return foundWindow
def GetStatus(self):
dwBytesNeeded = DWORD()
result = QueryServiceStatusEx(
self.schService, # handle to service
SC_STATUS_PROCESS_INFO, # information level
cast(byref(self.ssStatus), LPBYTE), # address of structure
sizeof(self.ssStatus), # size of structure
byref(dwBytesNeeded) # size needed if buffer is too small
)
if not result:
raise WinError()
return self.ssStatus
def FormatError(code=None):
"""
A replacement for ctypes.FormtError, but always returns the string
encoded in CP1252 (ANSI Code Page).
"""
if code is None:
code = GetLastError()
lpMsgBuf = LPWSTR()
numChars = _kernel32.FormatMessageW(
(
FORMAT_MESSAGE_ALLOCATE_BUFFER
| FORMAT_MESSAGE_FROM_SYSTEM
| FORMAT_MESSAGE_IGNORE_INSERTS
),
None,
code,
0,
byref(lpMsgBuf),
0,
None
)
if numChars == 0:
return "No error message available."
#raise Exception("FormatMessage failed on 0x%X with 0x%X" % (code & 0xFFFFFFFF, GetLastError()))
message = lpMsgBuf.value.strip()
_kernel32.LocalFree(lpMsgBuf)
return message.encode("CP1252", 'backslashreplace')
def GetWindowDimensions(hwnd = None):
hwnd = GetBestHwnd(hwnd)
windowDims = RECT()
GetWindowRect(hwnd, byref(windowDims))
width = windowDims.right - windowDims.left
height = windowDims.bottom - windowDims.top
return wx.Rect(windowDims.left, windowDims.top, width, height)
def FormatError(code=None):
"""
A replacement for ctypes.FormtError, but always returns the string
encoded in CP1252 (ANSI Code Page).
"""
if code is None:
code = GetLastError()
lpMsgBuf = LPWSTR()
numChars = _kernel32.FormatMessageW(
(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS
),
None,
code,
0,
byref(lpMsgBuf),
0,
None
)
if numChars == 0:
return "No error message available."
#raise Exception("FormatMessage failed on 0x%X with 0x%X" % (code & 0xFFFFFFFF, GetLastError()))
message = lpMsgBuf.value.strip()
_kernel32.LocalFree(lpMsgBuf)
return message.encode("CP1252", 'backslashreplace')
def GetWindowDimensions(hwnd=None):
hwnd = GetBestHwnd(hwnd)
windowDims = RECT()
GetWindowRect(hwnd, byref(windowDims))
width = windowDims.right - windowDims.left
height = windowDims.bottom - windowDims.top
return wx.Rect(windowDims.left, windowDims.top, width, height)
def Main(pipeName, debugLevel):
if debugLevel:
def Debug(msg):
sys.stdout.write(msg + "\n")
else:
def Debug(msg):
pass
if not WaitNamedPipe(pipeName, 5000):
raise WinError()
hPipe = CreateFile(pipeName, GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE, None, OPEN_EXISTING,
0, None)
if hPipe == INVALID_HANDLE_VALUE:
raise WinError()
try:
# The pipe connected; change to message-read mode.
dwMode = DWORD(PIPE_READMODE_MESSAGE)
if not SetNamedPipeHandleState(hPipe, byref(dwMode), None, None):
raise WinError()
sys.stderr = PipeStream(hPipe, MESSAGE_STDERR)
sys.stdout = PipeStream(hPipe, MESSAGE_STDOUT)
Debug("reading startup message")
code, (scriptPath, funcName, args, kwargs) = ReadPipeMessage(hPipe)
Debug("got startup message:\n"
" path: %r\n"
" funcName: %r\n"
" args: %r\n"
" kwargs: %r" % (scriptPath, funcName, args, kwargs))
if code != MESSAGE_ARGS:
raise Exception("Unexpected message type")
try:
moduleName = splitext(basename(scriptPath))[0]
try:
moduleInfo = imp.find_module(moduleName, [dirname(scriptPath)])
except ImportError:
import zipimport
for entry in sys.path:
if entry.endswith('.zip'):
zipImporter = zipimport.zipimporter(entry)
try:
module = zipImporter.load_module(moduleName)
except zipimport.ZipImportError:
continue
else:
module = imp.load_module(moduleName, *moduleInfo)
func = getattr(module, funcName)
result = func(*args, **kwargs)
Debug("result: %r" % result)
except:
WritePipeMessage(hPipe, MESSAGE_EXCEPTION,
FormatException(sys.exc_info()))
else:
WritePipeMessage(hPipe, MESSAGE_RESULT, result)
finally:
CloseHandle(hPipe)
def Client():
while 1:
hPipe = CreateFile(
szPipename,
GENERIC_READ | GENERIC_WRITE,
0,
None,
OPEN_EXISTING,
0,
None
)
if hPipe != INVALID_HANDLE_VALUE:
break
else:
print "Invalid Handle Value"
if GetLastError() != ERROR_PIPE_BUSY:
print "Could not open pipe"
return
elif WaitNamedPipe(szPipename, 20000) == 0:
print "Could not open pipe"
return
try:
dwMode = DWORD(PIPE_READMODE_MESSAGE)
fSuccess = SetNamedPipeHandleState(hPipe, byref(dwMode), None, None)
if not fSuccess:
raise Exception("SetNamedPipeHandleState failed")
sys.stderr = PipeStream(hPipe, MESSAGE_STDERR)
sys.stdout = PipeStream(hPipe, MESSAGE_STDOUT)
Msg("reading startup message")
code, (scriptPath, funcName, args, kwargs) = ReadPipeMessage(hPipe)
Msg(
"got startup message:\n"
" path: %r\n"
" funcName: %r\n"
" args: %r\n"
" kwargs: %r" %
(scriptPath, funcName, args, kwargs)
)
if code != MESSAGE_ARGS:
raise Exception("Unexpected message type")
try:
moduleName = splitext(basename(scriptPath))[0]
moduleInfo = imp.find_module(moduleName, [dirname(scriptPath)])
module = imp.load_module(moduleName, *moduleInfo)
func = getattr(module, funcName)
result = func(*args, **kwargs)
except:
WritePipeMessage(
hPipe,
MESSAGE_EXCEPTION,
FormatException(sys.exc_info())
)
else:
WritePipeMessage(hPipe, MESSAGE_RESULT, result)
finally:
CloseHandle(hPipe)
def PyGetWindowThreadProcessId(hWnd):
"""
Retrieves the identifier of the thread and process that created the
specified window.
int threadId, int processId = GetWindowThreadProcessId(hWnd)
"""
dwProcessId = DWORD()
threadId = GetWindowThreadProcessId(hWnd, byref(dwProcessId))
return threadId, dwProcessId.value
def SetDescription(self, description):
self.GetServiceHandle()
serviceDescription = SERVICE_DESCRIPTION()
serviceDescription.lpDescription = description
if not ChangeServiceConfig2(
self.schService, # handle to service
SERVICE_CONFIG_DESCRIPTION, # change: description
byref(serviceDescription) # new description
):
raise WinError()
def PyGetWindowThreadProcessId(hWnd):
"""
Retrieves the identifier of the thread and process that created the
specified window.
int threadId, int processId = GetWindowThreadProcessId(hWnd)
"""
dwProcessId = DWORD()
threadId = GetWindowThreadProcessId(hWnd, byref(dwProcessId))
return threadId, dwProcessId.value
def GetUncPathOf(filePath):
buf = create_string_buffer(1024)
dwBufSize = DWORD(1024)
err = WNetGetUniversalName(filePath, UNIVERSAL_NAME_INFO_LEVEL, buf, byref(dwBufSize))
if err == 0:
return cast(buf, POINTER(UNIVERSAL_NAME_INFO)).contents.lpUniversalName
elif err == ERROR_NOT_CONNECTED:
pass
else:
print "GetUncPathOf Error:", err, FormatError(err)
return filePath
def GetUncPathOf(filePath):
buf = create_string_buffer(1024)
dwBufSize = DWORD(1024)
err = WNetGetUniversalName(filePath, UNIVERSAL_NAME_INFO_LEVEL, buf,
byref(dwBufSize))
if err == 0:
return cast(buf, POINTER(UNIVERSAL_NAME_INFO)).contents.lpUniversalName
elif err == ERROR_NOT_CONNECTED:
pass
else:
print "GetUncPathOf Error:", err, FormatError(err)
return filePath
def PySendMessageTimeout(hWnd,
msg,
wParam=0,
lParam=0,
flags=SMTO_BLOCK | SMTO_ABORTIFHUNG,
timeout=2000):
resultData = DWORD()
res = SendMessageTimeout(hWnd, msg, wParam, lParam, flags, timeout,
byref(resultData))
if not res:
raise WinError()
return resultData.value
def WritePipeMessage(hPipe, code, data):
message = dumps((code, data))
cbWritten = DWORD(0)
fSuccess = WriteFile(
hPipe,
message,
len(message),
byref(cbWritten),
None
)
if (not fSuccess) or (len(message) != cbWritten.value):
raise Exception("WritePipeMessage failed")
def WritePipeMessage(hPipe, code, data):
message = dumps((code, data))
cbWritten = DWORD(0)
fSuccess = WriteFile(
hPipe,
message,
len(message),
byref(cbWritten),
None
)
if (not fSuccess) or (len(message) != cbWritten.value):
raise Exception("Write File failed")
def PyEnumProcesses():
size = 1024
pBytesReturned = DWORD()
while True:
data = (DWORD * size)()
dataSize = size * sizeof(DWORD)
res = EnumProcesses(data, dataSize, byref(pBytesReturned))
if res == 0:
raise WinError()
if pBytesReturned.value != dataSize:
break
size *= 10
return data[:pBytesReturned.value / sizeof(DWORD)]
def PyEnumProcesses():
size = 1024
pBytesReturned = DWORD()
while True:
data = (DWORD * size)()
dataSize = size * sizeof(DWORD)
res = EnumProcesses(data, dataSize, byref(pBytesReturned))
if res == 0:
raise WinError()
if pBytesReturned.value != dataSize:
break
size *= 10
return data[:pBytesReturned.value / sizeof(DWORD)]
def GetHwndIcon(hWnd):
"""
Get a wx.Icon from a window through its hwnd window handle
"""
hIcon = DWORD()
res = SendMessageTimeout(
hWnd, WM_GETICON, ICON_SMALL, 0, SMTO_ABORTIFHUNG, 1000, byref(hIcon)
)
if res == 0:
hIcon.value = 0
if hIcon.value < 10:
hIcon.value = GetClassLong(hWnd, GCL_HICONSM)
if hIcon.value == 0:
res = SendMessageTimeout(
hWnd,
WM_GETICON,
ICON_BIG,
0,
SMTO_ABORTIFHUNG,
1000,
byref(hIcon)
)
if res == 0:
hIcon.value = 0
if hIcon.value < 10:
hIcon.value = GetClassLong(hWnd, GCL_HICON)
if hIcon.value != 0:
icon = wx.NullIcon
value = hIcon.value
# ugly fix for "OverflowError: long int too large to convert to int"
if value & 0x80000000:
value = -((value ^ 0xffffffff) + 1)
icon.SetHandle(value)
icon.SetSize((16, 16))
return icon
else:
return None
def ReadPipeMessage(hPipe):
data = ""
fSuccess = 0
chBuf = create_string_buffer(BUFSIZE)
cbRead = DWORD(0)
while not fSuccess: # repeat loop if ERROR_MORE_DATA
fSuccess = ReadFile(hPipe, chBuf, BUFSIZE, byref(cbRead), None)
if fSuccess == 1:
data += chBuf.value
break
elif GetLastError() != ERROR_MORE_DATA:
break
data += chBuf.value
return loads(data)
def PySendMessageTimeout(
hWnd,
msg,
wParam=0,
lParam=0,
flags=SMTO_BLOCK|SMTO_ABORTIFHUNG,
timeout=2000
):
resultData = DWORD()
res = SendMessageTimeout(
hWnd, msg, wParam, lParam, flags, timeout, byref(resultData)
)
if not res:
raise WinError()
return resultData.value
def RunAs(filePath, asAdministrator, *args):
sei = SHELLEXECUTEINFO()
sei.cbSize = sizeof(SHELLEXECUTEINFO)
sei.fMask = SEE_MASK_FLAG_DDEWAIT | SEE_MASK_FLAG_NO_UI | SEE_MASK_NOCLOSEPROCESS
if asAdministrator:
sei.lpVerb = u"runas"
else:
sei.lpVerb = u""
sei.lpFile = GetUncPathOf(filePath)
sei.lpParameters = " ".join(['"%s"' % arg.replace('"', '""') for arg in args])
sei.nShow = SW_SHOWNORMAL
if not ctypes.windll.shell32.ShellExecuteExW(byref(sei)):
err = GetLastError()
raise WindowsError(err, "ShellExecuteEx: %s" % FormatError(err))
return sei.hProcess
def RunAs(filePath, asAdministrator, *args):
sei = SHELLEXECUTEINFO()
sei.cbSize = sizeof(SHELLEXECUTEINFO)
sei.fMask = (SEE_MASK_FLAG_DDEWAIT | SEE_MASK_FLAG_NO_UI
| SEE_MASK_NOCLOSEPROCESS)
if asAdministrator:
sei.lpVerb = u"runas"
else:
sei.lpVerb = u""
sei.lpFile = GetUncPathOf(filePath)
sei.lpParameters = " ".join(
['"%s"' % arg.replace('"', '""') for arg in args])
sei.nShow = SW_SHOWNORMAL
if not ctypes.windll.shell32.ShellExecuteExW(byref(sei)):
err = GetLastError()
raise WindowsError(err, "ShellExecuteEx: %s" % FormatError(err))
return sei.hProcess
def HighlightWindow(hWnd):
"""
Draws an inverted rectangle around a window to inform the user about
the currently selected window.
"""
UpdateWindow(hWnd)
# Retrieve location of window on-screen.
rect = RECT()
GetWindowRect(hWnd, byref(rect))
# Get a device context that allows us to write anywhere within the window.
hdc = GetWindowDC(hWnd)
# Save the original device context attributes.
SaveDC(hdc)
# To guarantee that the frame will be visible, tell Windows to draw the
# frame using the inverse screen color.
SetROP2(hdc, R2_NOT)
# Create a pen that is three times the width of a nonsizeable border. The
# color will not be used to draw the frame, so its value could be
# anything. PS_INSIDEFRAME tells windows that the entire frame should be
# enclosed within the window.
hpen = CreatePen(PS_INSIDEFRAME, _H_BORDERWIDTH, _H_BORDERCOLOUR)
SelectObject(hdc, hpen)
# We must select a NULL brush so that the contents of the window will not
# be overwritten.
SelectObject(hdc, GetStockObject(NULL_BRUSH))
# Draw the frame. Because the device context is relative to the window,
# the top-left corner is (0, 0) and the lower right corner is (width of
# window, height of window).
Rectangle(hdc, 0, 0, rect.right - rect.left, rect.bottom - rect.top)
# Restore the original attributes and release the device context.
RestoreDC(hdc, -1)
ReleaseDC(hWnd, hdc)
# We can destroy the pen only AFTER we have restored the DC because the DC
# must have valid objects selected into it at all times.
DeleteObject(hpen)
def HighlightWindow(hWnd):
"""
Draws an inverted rectangle around a window to inform the user about
the currently selected window.
"""
UpdateWindow(hWnd)
# Retrieve location of window on-screen.
rect = RECT()
GetWindowRect(hWnd, byref(rect))
# Get a device context that allows us to write anywhere within the window.
hdc = GetWindowDC(hWnd)
# Save the original device context attributes.
SaveDC(hdc)
# To guarantee that the frame will be visible, tell Windows to draw the
# frame using the inverse screen color.
SetROP2(hdc, R2_NOT)
# Create a pen that is three times the width of a nonsizeable border. The
# color will not be used to draw the frame, so its value could be
# anything. PS_INSIDEFRAME tells windows that the entire frame should be
# enclosed within the window.
hpen = CreatePen(PS_INSIDEFRAME, _H_BORDERWIDTH, _H_BORDERCOLOUR)
SelectObject(hdc, hpen)
# We must select a NULL brush so that the contents of the window will not
# be overwritten.
SelectObject(hdc, GetStockObject(NULL_BRUSH))
# Draw the frame. Because the device context is relative to the window,
# the top-left corner is (0, 0) and the lower right corner is (width of
# window, height of window).
Rectangle(hdc, 0, 0, rect.right - rect.left, rect.bottom - rect.top)
# Restore the original attributes and release the device context.
RestoreDC(hdc, -1)
ReleaseDC(hWnd, hdc)
# We can destroy the pen only AFTER we have restored the DC because the DC
# must have valid objects selected into it at all times.
DeleteObject(hpen)
def Stop(self):
"""
Stops the service.
"""
self.GetServiceHandle()
# Make sure the service is not already stopped.
ssStatus = self.GetStatus()
if ssStatus.dwCurrentState == SERVICE_STOPPED:
return
# If a stop is pending, wait for it.
dwStartTime = GetTickCount()
dwTimeout = 30000
while ssStatus.dwCurrentState == SERVICE_STOP_PENDING:
# Do not wait longer than the wait hint. A good interval is
# one-tenth of the wait hint but not less than 1 second
# and not more than 10 seconds.
Sleep(min(max(1000, ssStatus.dwWaitHint / 10), 10000))
ssStatus = self.GetStatus()
if ssStatus.dwCurrentState == SERVICE_STOPPED:
return
if GetTickCount() - dwStartTime > dwTimeout:
raise TimeOutError()
# If the service is running, dependencies must be stopped first.
#self.StopDependentServices()
# Send a stop code to the service.
if not ControlService(
self.schService,
SERVICE_CONTROL_STOP,
cast(byref(ssStatus), LPSERVICE_STATUS)
):
raise WinError()
# Wait for the service to stop.
while ssStatus.dwCurrentState != SERVICE_STOPPED:
Sleep(ssStatus.dwWaitHint)
ssStatus = self.GetStatus()
if ssStatus.dwCurrentState == SERVICE_STOPPED:
break
if GetTickCount() - dwStartTime > dwTimeout:
raise TimeOutError()
def ReadPipeMessage(hPipe):
data = ""
fSuccess = 0
chBuf = create_string_buffer(BUFSIZE)
cbRead = DWORD(0)
while not fSuccess: # repeat loop if ERROR_MORE_DATA
fSuccess = ReadFile(
hPipe,
chBuf,
BUFSIZE,
byref(cbRead),
None
)
if fSuccess == 1:
data += chBuf.value
break
elif GetLastError() != ERROR_MORE_DATA:
break
data += chBuf.value
return loads(data)
def FormatError(code=None):
"""
A replacement for ctypes.FormtError, but always returns a unicode string.
"""
if code is None:
code = GetLastError()
kernel32 = ctypes.windll.kernel32
lpMsgBuf = LPWSTR()
numChars = kernel32.FormatMessageW(
FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
None,
code,
0,
byref(lpMsgBuf),
0,
None
)
if numChars == 0:
raise Exception("FormatMessage failed", GetLastError())
message = lpMsgBuf.value.strip()
kernel32.LocalFree(lpMsgBuf)
return message
def ExecAs(scriptPath, asAdministrator, funcName, *args, **kwargs):
pipeName = "\\\\.\\pipe\\" + str(GUID.create_new())
Msg("creating named pipe")
hPipe = CreateNamedPipe(
pipeName,
PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT,
PIPE_UNLIMITED_INSTANCES,
BUFSIZE,
BUFSIZE,
0,
None
)
if hPipe == INVALID_HANDLE_VALUE:
raise Exception("Error in creating Named Pipe")
overlapped = OVERLAPPED()
overlapped.hEvent = CreateEvent(None, 1, 0, None)
try:
Msg("calling ConnectNamedPipe")
ConnectNamedPipe(hPipe, byref(overlapped))
localPath = dirname(__file__.decode('mbcs'))
Msg("starting subprocess")
hProcess = RunAs(
abspath(join(localPath, "..", "..", "EventGhost.exe")),
asAdministrator,
"-execfile",
GetUncPathOf(join(localPath, "PipedProcessClient.py")),
pipeName,
str(eg.debugLevel)
)
Msg("waiting for subprocess to connect")
pHandles = (HANDLE * 2)(overlapped.hEvent, hProcess)
ret = WaitForMultipleObjects(2, pHandles, 0, 25000)
if ret == WAIT_OBJECT_0:
# connect event
Msg("got connect event")
elif ret == WAIT_OBJECT_0 + 1:
raise Exception("Unexpected end of subprocess.")
elif ret == WAIT_TIMEOUT:
raise Exception("Timeout in waiting for subprocess.")
else:
raise Exception("Unknown return value")
Msg("sending startup message")
WritePipeMessage(
hPipe,
MESSAGE_ARGS,
(GetUncPathOf(scriptPath), funcName, args, kwargs)
)
chBuf = create_string_buffer(BUFSIZE)
cbRead = DWORD(0)
while True:
fSuccess = ReadFile(hPipe, chBuf, BUFSIZE, byref(cbRead), None)
if ((fSuccess == 1) or (cbRead.value != 0)):
code, data = loads(chBuf.value)
if code == MESSAGE_STDERR:
sys.stderr.write(data)
elif code == MESSAGE_STDOUT:
sys.stdout.write(data)
elif code == MESSAGE_RESULT:
result = data
break
elif code == MESSAGE_EXCEPTION:
break
else:
raise Exception("Unknown message type %r" % code)
FlushFileBuffers(hPipe)
DisconnectNamedPipe(hPipe)
finally:
CloseHandle(hPipe)
CloseHandle(overlapped.hEvent)
if code == MESSAGE_EXCEPTION:
raise Exception("Child process raised an exception\n" + data)
return result
def IsAdmin():
"""
Find out if the user (the owner of the current process) is a member of
the administrators group on the local computer (not on the domain!).
"""
# First we must open a handle to the access token for this thread.
hThread = HANDLE()
if not OpenThreadToken(GetCurrentThread(), TOKEN_QUERY, 0, byref(hThread)):
err = GetLastError()
if err == ERROR_NO_TOKEN:
# If the thread does not have an access token, we'll examine the
# access token associated with the process.
if not OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY,
byref(hThread)):
raise WinError()
else:
raise WinError(err)
# Then we must query the size of the group information associated with
# the token. Note that we expect a FALSE result from GetTokenInformation
# because we've given it a NULL buffer. On exit cbTokenGroups will tell
# the size of the group information.
cbTokenGroups = DWORD()
if GetTokenInformation(hThread, TokenGroups, None, 0,
byref(cbTokenGroups)):
raise WinError()
# Here we verify that GetTokenInformation failed for lack of a large
# enough buffer.
err = GetLastError()
if err != ERROR_INSUFFICIENT_BUFFER:
raise WinError(err)
# Now we allocate a buffer for the group information.
ptg = create_string_buffer(cbTokenGroups.value)
# Now we ask for the group information again.
# This may fail if an administrator has added this account to an additional
# group between our first call to GetTokenInformation and this one.
if not GetTokenInformation(hThread, TokenGroups, ptg, cbTokenGroups,
byref(cbTokenGroups)):
raise WinError()
# Now we must create a System Identifier for the Admin group.
systemSidAuthority = SID_IDENTIFIER_AUTHORITY()
systemSidAuthority.Value[5] = SECURITY_NT_AUTHORITY
psidAdmin = PSID()
if not AllocateAndInitializeSid(
byref(systemSidAuthority), 2, SECURITY_BUILTIN_DOMAIN_RID,
DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0, byref(psidAdmin)):
raise WinError()
# Finally we'll iterate through the list of groups for this access
# token looking for a match against the SID we created above.
ptg = cast(ptg, POINTER(TOKEN_GROUPS))
groups = cast(ptg.contents.Groups, POINTER(SID_AND_ATTRIBUTES))
isAdmin = False
for i in range(ptg.contents.GroupCount):
if EqualSid(groups[i].Sid, psidAdmin.value):
isAdmin = True
break
# Before we exit we must explicitly deallocate the SID we created.
FreeSid(psidAdmin)
return isAdmin
def GetComPorts(availableOnly=True):
"""
Scans the registry for serial ports and return a list of (port, desc, hwid)
tuples.
If availableOnly is true only return currently existing ports.
"""
result = []
stringBuffer = create_unicode_buffer(256)
flags = DIGCF_DEVICEINTERFACE
if availableOnly:
flags |= DIGCF_PRESENT
hdi = SetupDiGetClassDevs(byref(GUID_CLASS_COMPORT), None, 0, flags)
if hdi == INVALID_HANDLE_VALUE:
raise WinError()
dwRequiredSize = DWORD()
dwIndex = 0
while True:
did = SP_DEVICE_INTERFACE_DATA()
did.cbSize = sizeof(did)
if not SetupDiEnumDeviceInterfaces(
hdi, None, byref(GUID_CLASS_COMPORT), dwIndex, byref(did)):
err = GetLastError()
if err != ERROR_NO_MORE_ITEMS:
raise WinError(err)
break
# get the size
if not SetupDiGetDeviceInterfaceDetail(hdi, byref(did), None, 0,
byref(dwRequiredSize), None):
# Ignore ERROR_INSUFFICIENT_BUFFER
err = GetLastError()
if err != ERROR_INSUFFICIENT_BUFFER:
raise WinError(err)
# allocate buffer
class _SP_DEVICE_INTERFACE_DETAIL_DATA(Structure):
_fields_ = [
('cbSize', DWORD),
('DevicePath', TCHAR * (dwRequiredSize.value - sizeof(DWORD))),
]
idd = _SP_DEVICE_INTERFACE_DETAIL_DATA()
idd.cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA)
devinfo = SP_DEVINFO_DATA()
devinfo.cbSize = sizeof(devinfo)
if not SetupDiGetDeviceInterfaceDetail(
hdi, byref(did),
cast(byref(idd), PSP_DEVICE_INTERFACE_DETAIL_DATA),
dwRequiredSize, None, byref(devinfo)):
raise WinError()
# hardware ID
if not SetupDiGetDeviceRegistryProperty(
hdi, byref(devinfo), SPDRP_HARDWAREID, None,
cast(stringBuffer, PBYTE),
sizeof(stringBuffer) - 1, None):
# Ignore ERROR_INSUFFICIENT_BUFFER
err = GetLastError()
if err != ERROR_INSUFFICIENT_BUFFER:
raise WinError(err)
szHardwareID = stringBuffer.value
# friendly name
if not SetupDiGetDeviceRegistryProperty(
hdi, byref(devinfo), SPDRP_FRIENDLYNAME, None,
cast(stringBuffer, PBYTE),
sizeof(stringBuffer) - 1, None):
# Ignore ERROR_INSUFFICIENT_BUFFER
err = GetLastError()
if err != ERROR_INSUFFICIENT_BUFFER:
raise WinError(err)
szFriendlyName = stringBuffer.value
portName = re.search(r"\((.*)\)", szFriendlyName).group(1)
result.append((portName, szFriendlyName, szHardwareID))
dwIndex += 1
SetupDiDestroyDeviceInfoList(hdi)
return result
def ExecAs(scriptPath, asAdministrator, funcName, *args, **kwargs):
pipeName = "\\\\.\\pipe\\" + str(GUID.create_new())
Msg("creating named pipe")
hPipe = CreateNamedPipe(
pipeName,
PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT,
PIPE_UNLIMITED_INSTANCES,
BUFSIZE,
BUFSIZE,
0,
None
)
if hPipe == INVALID_HANDLE_VALUE:
raise Exception("Error in creating Named Pipe")
overlapped = OVERLAPPED()
overlapped.hEvent = CreateEvent(None, 1, 0, None)
try:
Msg("calling ConnectNamedPipe")
ConnectNamedPipe(hPipe, byref(overlapped))
localPath = dirname(__file__.decode('mbcs'))
Msg("starting subprocess")
hProcess = RunAs(
abspath(join(localPath, "..", "..", "EventGhost.exe")),
asAdministrator,
"-execfile",
GetUncPathOf(join(localPath, "PipedProcessClient.py")),
pipeName,
str(eg.debugLevel)
)
Msg("waiting for subprocess to connect")
pHandles = (HANDLE * 2)(overlapped.hEvent, hProcess)
ret = WaitForMultipleObjects(2, pHandles, 0, 25000)
if ret == WAIT_OBJECT_0:
# connect event
Msg("got connect event")
elif ret == WAIT_OBJECT_0 + 1:
raise Exception("Unexpected end of subprocess.")
elif ret == WAIT_TIMEOUT:
raise Exception("Timeout in waiting for subprocess.")
else:
raise Exception("Unknown return value")
Msg("sending startup message")
WritePipeMessage(
hPipe,
MESSAGE_ARGS,
(GetUncPathOf(scriptPath), funcName, args, kwargs)
)
chBuf = create_string_buffer(BUFSIZE)
cbRead = DWORD(0)
while True:
fSuccess = ReadFile(hPipe, chBuf, BUFSIZE, byref(cbRead), None)
if ((fSuccess == 1) or (cbRead.value != 0)):
code, data = loads(chBuf.value)
if code == MESSAGE_STDERR:
sys.stderr.write(data)
elif code == MESSAGE_STDOUT:
sys.stdout.write(data)
elif code == MESSAGE_RESULT:
result = data
break
elif code == MESSAGE_EXCEPTION:
break
else:
raise Exception("Unknown message type %r" % code)
FlushFileBuffers(hPipe)
DisconnectNamedPipe(hPipe)
finally:
CloseHandle(hPipe)
CloseHandle(overlapped.hEvent)
if code == MESSAGE_EXCEPTION:
raise Exception("Child process raised an exception\n" + data)
return result
def GetWindowProcessName(hWnd):
dwProcessId = DWORD()
GetWindowThreadProcessId(hWnd, byref(dwProcessId))
return GetProcessName(dwProcessId.value)
def ExecAsAdministrator(scriptPath, funcName, *args, **kwargs):
"""
Execute some Python code in a process with elevated privileges.
This call will only return, after the subprocess has terminated. The
sys.stdout and sys.stderr streams of the subprocess will be directed to
the calling process through a named pipe. All parameters for the function
to call and its return value must be picklable.
:param scriptPath: Path to the Python file to load.
:param funcName: Name of the function to call inside the Python file
:param args: Positional parameters for the function
:param kwargs: Keyword parameters for the function
:returns: The return value of the function
"""
Msg("creating named pipe")
hPipe = CreateNamedPipe(
szPipename,
PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT,
PIPE_UNLIMITED_INSTANCES,
BUFSIZE,
BUFSIZE,
0,
None
)
if (hPipe == INVALID_HANDLE_VALUE):
raise Exception("Error in creating Named Pipe")
overlapped = OVERLAPPED()
overlapped.hEvent = CreateEvent(None, 1, 0, None)
try:
Msg("calling ConnectNamedPipe")
ConnectNamedPipe(hPipe, byref(overlapped))
executable = abspath(join(
dirname(__file__.decode(sys.getfilesystemencoding())),
"..",
"..",
"EventGhost.exe"
))
Msg("starting subprocess")
hProcess = RunAsAdministrator(
executable,
"-execscript",
__file__.decode(sys.getfilesystemencoding()),
"-client",
szPipename,
)
Msg("waiting for subprocess to connect")
pHandles = (HANDLE * 2)(overlapped.hEvent, hProcess)
ret = WaitForMultipleObjects(2, pHandles, 0, 20000)
if ret == WAIT_OBJECT_0:
# connect event
Msg("got connect event")
elif ret == WAIT_OBJECT_0 + 1:
raise Exception("Unexpected end of subprocess.")
elif ret == WAIT_TIMEOUT:
raise Exception("Timeout in waiting for subprocess.")
else:
raise Exception("Unknown return value")
# if fConnected == 0 and GetLastError() == ERROR_PIPE_CONNECTED:
# fConnected = 1
# if fConnected != 1:
# raise Exception("Could not connect to the Named Pipe")
#
Msg("sending startup message")
WritePipeMessage(
hPipe,
MESSAGE_ARGS,
(scriptPath, funcName, args, kwargs)
)
chBuf = create_string_buffer(BUFSIZE)
cbRead = DWORD(0)
while True:
fSuccess = ReadFile(hPipe, chBuf, BUFSIZE, byref(cbRead), None)
if ((fSuccess == 1) or (cbRead.value != 0)):
code, data = loads(chBuf.value)
if code == MESSAGE_STDERR:
sys.stderr.write(data)
elif code == MESSAGE_STDOUT:
sys.stdout.write(data)
elif code == MESSAGE_RESULT:
result = data
break
elif code == MESSAGE_EXCEPTION:
break
else:
raise Exception("Unknown message type %r" % code)
FlushFileBuffers(hPipe)
DisconnectNamedPipe(hPipe)
finally:
CloseHandle(hPipe)
CloseHandle(overlapped.hEvent)
if code == MESSAGE_EXCEPTION:
raise Exception("Child process raised an exception\n" + data)
return result
def GetComPorts(availableOnly=True):
"""
This generator scans the device registry for com ports and yields port,
desc, hwid.
If availableOnly is true only return currently existing ports.
"""
stringBuffer = ctypes.create_unicode_buffer(256)
flags = DIGCF_DEVICEINTERFACE
if availableOnly:
flags |= DIGCF_PRESENT
hdi = SetupDiGetClassDevs(byref(GUID_CLASS_COMPORT), None, NULL, flags)
#~ for i in range(256):
for dwIndex in range(256):
did = SP_DEVICE_INTERFACE_DATA()
did.cbSize = sizeof(did)
if not SetupDiEnumDeviceInterfaces(
hdi,
None,
byref(GUID_CLASS_COMPORT),
dwIndex,
byref(did)
):
if ctypes.GetLastError() != ERROR_NO_MORE_ITEMS:
raise ctypes.WinError()
break
dwNeeded = DWORD()
# get the size
if not SetupDiGetDeviceInterfaceDetail(
hdi,
byref(did),
None,
0,
byref(dwNeeded),
None
):
# Ignore ERROR_INSUFFICIENT_BUFFER
if ctypes.GetLastError() != ERROR_INSUFFICIENT_BUFFER:
raise ctypes.WinError()
# allocate buffer
class _SP_DEVICE_INTERFACE_DETAIL_DATA(ctypes.Structure):
_fields_ = [
('cbSize', DWORD),
('DevicePath', TCHAR*(dwNeeded.value - sizeof(DWORD))),
]
idd = _SP_DEVICE_INTERFACE_DETAIL_DATA()
idd.cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA)
devinfo = SP_DEVINFO_DATA()
devinfo.cbSize = sizeof(devinfo)
if not SetupDiGetDeviceInterfaceDetail(
hdi,
byref(did),
cast(byref(idd), PSP_DEVICE_INTERFACE_DETAIL_DATA),
dwNeeded,
None,
byref(devinfo)
):
raise ctypes.WinError()
#print idd.DevicePath, sizeof(idd)
# hardware ID
if not SetupDiGetDeviceRegistryProperty(
hdi,
byref(devinfo),
SPDRP_HARDWAREID,
None,
cast(stringBuffer, PBYTE),
sizeof(stringBuffer) - 1,
None
):
# Ignore ERROR_INSUFFICIENT_BUFFER
if ctypes.GetLastError() != ERROR_INSUFFICIENT_BUFFER:
raise ctypes.WinError()
szHardwareID = stringBuffer.value
# friendly name
#szFriendlyName = ctypes.create_string_buffer('\0' * 250)
if not SetupDiGetDeviceRegistryProperty(
hdi,
byref(devinfo),
SPDRP_FRIENDLYNAME,
None,
cast(stringBuffer, PBYTE),
sizeof(stringBuffer) - 1,
None
):
# Ignore ERROR_INSUFFICIENT_BUFFER
if ctypes.GetLastError() != ERROR_INSUFFICIENT_BUFFER:
raise ctypes.WinError()
szFriendlyName = stringBuffer.value
portName = re.search(r"\((.*)\)", szFriendlyName).group(1)
yield portName, szFriendlyName, szHardwareID
SetupDiDestroyDeviceInfoList(hdi)
def Main(pipeName, debugLevel):
if debugLevel:
def Debug(msg):
sys.stdout.write(msg + "\n")
else:
def Debug(msg):
pass
if not WaitNamedPipe(pipeName, 5000):
raise WinError()
hPipe = CreateFile(
pipeName,
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
None,
OPEN_EXISTING,
0,
None
)
if hPipe == INVALID_HANDLE_VALUE:
raise WinError()
try:
# The pipe connected; change to message-read mode.
dwMode = DWORD(PIPE_READMODE_MESSAGE)
if not SetNamedPipeHandleState(hPipe, byref(dwMode), None, None):
raise WinError()
sys.stderr = PipeStream(hPipe, MESSAGE_STDERR)
sys.stdout = PipeStream(hPipe, MESSAGE_STDOUT)
Debug("reading startup message")
code, (scriptPath, funcName, args, kwargs) = ReadPipeMessage(hPipe)
Debug(
"got startup message:\n"
" path: %r\n"
" funcName: %r\n"
" args: %r\n"
" kwargs: %r" % (scriptPath, funcName, args, kwargs)
)
if code != MESSAGE_ARGS:
raise Exception("Unexpected message type")
try:
moduleName = splitext(basename(scriptPath))[0]
try:
moduleInfo = imp.find_module(moduleName, [dirname(scriptPath)])
except ImportError:
import zipimport
for entry in sys.path:
if entry.endswith('.zip'):
zipImporter = zipimport.zipimporter(entry)
try:
module = zipImporter.load_module(moduleName)
except zipimport.ZipImportError:
continue
else:
module = imp.load_module(moduleName, *moduleInfo)
func = getattr(module, funcName)
result = func(*args, **kwargs)
Debug("result: %r" % result)
except:
WritePipeMessage(
hPipe,
MESSAGE_EXCEPTION,
FormatException(sys.exc_info())
)
else:
WritePipeMessage(hPipe, MESSAGE_RESULT, result)
finally:
CloseHandle(hPipe)
def IsAdmin():
"""
Find out if the user (the owner of the current process) is a member of
the administrators group on the local computer (not on the domain!).
"""
# First we must open a handle to the access token for this thread.
hThread = HANDLE()
if not OpenThreadToken(
GetCurrentThread(), TOKEN_QUERY, 0 , byref(hThread)
):
err = GetLastError()
if err == ERROR_NO_TOKEN:
# If the thread does not have an access token, we'll examine the
# access token associated with the process.
if not OpenProcessToken(
GetCurrentProcess(), TOKEN_QUERY, byref(hThread)
):
raise WinError()
else:
raise WinError(err)
# Then we must query the size of the group information associated with
# the token. Note that we expect a FALSE result from GetTokenInformation
# because we've given it a NULL buffer. On exit cbTokenGroups will tell
# the size of the group information.
cbTokenGroups = DWORD()
if GetTokenInformation(
hThread, TokenGroups, None, 0, byref(cbTokenGroups)
):
raise WinError()
# Here we verify that GetTokenInformation failed for lack of a large
# enough buffer.
err = GetLastError()
if err != ERROR_INSUFFICIENT_BUFFER:
raise WinError(err)
# Now we allocate a buffer for the group information.
ptg = create_string_buffer(cbTokenGroups.value)
# Now we ask for the group information again.
# This may fail if an administrator has added this account to an additional
# group between our first call to GetTokenInformation and this one.
if not GetTokenInformation(
hThread, TokenGroups, ptg, cbTokenGroups, byref(cbTokenGroups)
):
raise WinError()
# Now we must create a System Identifier for the Admin group.
systemSidAuthority = SID_IDENTIFIER_AUTHORITY()
systemSidAuthority.Value[5] = SECURITY_NT_AUTHORITY
psidAdmin = PSID()
if not AllocateAndInitializeSid(
byref(systemSidAuthority),
2,
SECURITY_BUILTIN_DOMAIN_RID,
DOMAIN_ALIAS_RID_ADMINS,
0, 0, 0, 0, 0, 0,
byref(psidAdmin)
):
raise WinError()
# Finally we'll iterate through the list of groups for this access
# token looking for a match against the SID we created above.
ptg = cast(ptg, POINTER(TOKEN_GROUPS))
groups = cast(ptg.contents.Groups, POINTER(SID_AND_ATTRIBUTES))
isAdmin = False
for i in range(ptg.contents.GroupCount):
if EqualSid(groups[i].Sid, psidAdmin.value):
isAdmin = True
break
# Before we exit we must explicitly deallocate the SID we created.
FreeSid(psidAdmin)
return isAdmin
def GetComPorts(availableOnly=True):
"""
Scans the registry for serial ports and return a list of (port, desc, hwid)
tuples.
If availableOnly is true only return currently existing ports.
"""
result = []
stringBuffer = create_unicode_buffer(256)
flags = DIGCF_DEVICEINTERFACE
if availableOnly:
flags |= DIGCF_PRESENT
hdi = SetupDiGetClassDevs(byref(GUID_CLASS_COMPORT), None, 0, flags)
if hdi == INVALID_HANDLE_VALUE:
raise WinError()
dwRequiredSize = DWORD()
dwIndex = 0
while True:
did = SP_DEVICE_INTERFACE_DATA()
did.cbSize = sizeof(did)
if not SetupDiEnumDeviceInterfaces(
hdi,
None,
byref(GUID_CLASS_COMPORT),
dwIndex,
byref(did)
):
err = GetLastError()
if err != ERROR_NO_MORE_ITEMS:
raise WinError(err)
break
# get the size
if not SetupDiGetDeviceInterfaceDetail(
hdi,
byref(did),
None,
0,
byref(dwRequiredSize),
None
):
# Ignore ERROR_INSUFFICIENT_BUFFER
err = GetLastError()
if err != ERROR_INSUFFICIENT_BUFFER:
raise WinError(err)
# allocate buffer
class _SP_DEVICE_INTERFACE_DETAIL_DATA(Structure):
_fields_ = [
('cbSize', DWORD),
('DevicePath', TCHAR*(dwRequiredSize.value - sizeof(DWORD))),
]
idd = _SP_DEVICE_INTERFACE_DETAIL_DATA()
idd.cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA)
devinfo = SP_DEVINFO_DATA()
devinfo.cbSize = sizeof(devinfo)
if not SetupDiGetDeviceInterfaceDetail(
hdi,
byref(did),
cast(byref(idd), PSP_DEVICE_INTERFACE_DETAIL_DATA),
dwRequiredSize,
None,
byref(devinfo)
):
raise WinError()
# hardware ID
if not SetupDiGetDeviceRegistryProperty(
hdi,
byref(devinfo),
SPDRP_HARDWAREID,
None,
cast(stringBuffer, PBYTE),
sizeof(stringBuffer)-1,
None
):
# Ignore ERROR_INSUFFICIENT_BUFFER
err = GetLastError()
if err != ERROR_INSUFFICIENT_BUFFER:
raise WinError(err)
szHardwareID = stringBuffer.value
# friendly name
if not SetupDiGetDeviceRegistryProperty(
hdi,
byref(devinfo),
SPDRP_FRIENDLYNAME,
None,
cast(stringBuffer, PBYTE),
sizeof(stringBuffer)-1,
None
):
# Ignore ERROR_INSUFFICIENT_BUFFER
err = GetLastError()
if err != ERROR_INSUFFICIENT_BUFFER:
raise WinError(err)
szFriendlyName = stringBuffer.value
portName = re.search(r"\((.*)\)", szFriendlyName).group(1)
result.append((portName, szFriendlyName, szHardwareID))
dwIndex += 1
SetupDiDestroyDeviceInfoList(hdi)
return result
def GetWindowProcessName(hWnd):
dwProcessId = DWORD()
GetWindowThreadProcessId(hWnd, byref(dwProcessId))
return GetProcessName(dwProcessId.value)
