import ctypes
import os
import copy
import time
import struct
import itertools

from contextlib import contextmanager

import windows
import windows.network
import windows.registry
import windows.syswow64
import windows.exception
import windows.winproxy as winproxy
import windows.injection as injection
import windows.native_exec as native_exec
import windows.native_exec.simple_x86 as x86
import windows.native_exec.simple_x64 as x64

from . import utils
from windows.dbgprint import dbgprint
from windows.generated_def.winstructs import *
from windows.generated_def.ntstatus import NtStatusException
from .generated_def import windef

import windows.pe_parse as pe_parse




class AutoHandle(object):
    """An abstract class that allow easy handle creation/destruction/wait"""
     # Big bypass to prevent missing reference at programm close..
    _close_function = ctypes.WinDLL("kernel32").CloseHandle
    def _get_handle(self):
        raise NotImplementedError("{0} is abstract".format(type(self).__name__))

    @property
    def handle(self):
        """An handle on the object

        :type: HANDLE

           .. note::
                The handle is automaticaly closed when the object is destroyed
        """
        if hasattr(self, "_handle"):
            return self._handle
        self._handle = self._get_handle()
        dbgprint("Open handle {0} for {1}".format(hex(self._handle), self), "HANDLE")
        return self._handle

    def wait(self, timeout=INFINITE):
        """Wait for the object"""
        return winproxy.WaitForSingleObject(self.handle, timeout)

    def __del__(self):
        if hasattr(self, "_handle") and self._handle:
            dbgprint("Closing Handle {0} for {1}".format(hex(self._handle), self), "HANDLE")
            self._close_function(self._handle)


class System(object):
    """Represent the current ``Windows`` system ``Python`` is running on"""

    network = windows.network.Network()  # Object of class :class:`windows.network.Network`
    registry = windows.registry.Registry()  # Object of class :class:`windows.registry.Registry`

    @property
    def processes(self):
        """The list of running processes

        :type: [:class:`WinProcess`] -- A list of Process"""
        return self.enumerate_processes()

    @property
    def threads(self):
        """The list of running threads

        :type: [:class:`WinThread`] -- A list of Thread"""
        return self.enumerate_threads()

    @utils.fixedpropety
    def bitness(self):
        """The bitness of the system

        :type: :class:`int` -- 32 or 64"""
        if os.environ["PROCESSOR_ARCHITECTURE"].lower() != "x86":
            return 64
        if "PROCESSOR_ARCHITEW6432" in os.environ:
            return 64
        return 32

    @staticmethod
    def enumerate_processes():
        process_entry = WinProcess()
        process_entry.dwSize = ctypes.sizeof(process_entry)
        snap = winproxy.CreateToolhelp32Snapshot(windef.TH32CS_SNAPPROCESS, 0)
        winproxy.Process32First(snap, process_entry)
        res = []
        res.append(utils.swallow_ctypes_copy(process_entry))
        while winproxy.Process32Next(snap, process_entry):
            res.append(utils.swallow_ctypes_copy(process_entry))
        return res

    @staticmethod
    def enumerate_threads():
        thread_entry = WinThread()
        thread_entry.dwSize = ctypes.sizeof(thread_entry)
        snap = winproxy.CreateToolhelp32Snapshot(windef.TH32CS_SNAPTHREAD, 0)
        threads = []
        winproxy.Thread32First(snap, thread_entry)
        threads.append(copy.copy(thread_entry))
        while winproxy.Thread32Next(snap, thread_entry):
            threads.append(copy.copy(thread_entry))
        return threads


class WinThread(THREADENTRY32, AutoHandle):
    """Represent a thread """
    @utils.fixedpropety
    def tid(self):
        """Thread ID

        :type: :class:`int`"""
        return self.th32ThreadID

    @utils.fixedpropety
    def owner(self):
        """The Process owning the thread

        :type: :class:`WinProcess`"""
        if hasattr(self, "_owner"):
            return self._owner
        try:
            self._owner = [process for process in windows.system.processes if process.pid == self.th32OwnerProcessID][0]
        except IndexError:
            return None
        return self._owner

    @property
    def context(self):
        """The context of the thread, type depend of the target process.

            :type: :class:`windows.exception.ECONTEXT32` or  :class:`windows.exception.ECONTEXT64` or :class:`windows.exception.ECONTEXTWOW64` """
        if self.owner.bitness == 32 and windows.current_process.bitness == 64:
            # Wow64
            x = windows.exception.ECONTEXTWOW64()
            x.ContextFlags = CONTEXT_ALL
            winproxy.Wow64GetThreadContext(self.handle, x)
            return x

        if self.owner.bitness == 64 and windows.current_process.bitness == 32:
            x = windows.exception.ECONTEXT64.new_aligned()
            x.ContextFlags = CONTEXT_ALL
            windows.syswow64.NtGetContextThread_32_to_64(self.handle, x)
            return x

        if self.owner.bitness == 32:
            x = windows.exception.ECONTEXT32()
        else:
            x = windows.exception.ECONTEXT64.new_aligned()
        x.ContextFlags = CONTEXT_ALL
        winproxy.GetThreadContext(self.handle, x)
        return x

    def set_context(self, context):
        """Set the thread context to ``context``"""
        if self.owner.bitness == windows.current_process.bitness:
            return winproxy.SetThreadContext(self.handle, context)
        if windows.current_process.bitness == 64 and self.owner.bitness == 32:
            return winproxy.Wow64SetThreadContext(self.handle, context)
        return windows.syswow64.NtSetContextThread_32_to_64(self.handle, ctypes.byref(context))

    @property
    def start_address(self):
        """The start address of the thread

            :type: :class:`int`"""
        if windows.current_process.bitness == 32 and self.owner.bitness == 64:
            res = ULONGLONG()
            windows.syswow64.NtQueryInformationThread_32_to_64(self.handle, ThreadQuerySetWin32StartAddress, byref(res), ctypes.sizeof(res))
            return res.value
        res_size = max(self.owner.bitness, windows.current_process.bitness)
        if res_size == 32:
            res = ULONG()
        else:
            res = ULONGLONG()
        winproxy.NtQueryInformationThread(self.handle, ThreadQuerySetWin32StartAddress, byref(res), ctypes.sizeof(res))
        return res.value

    def exit(self, code=0):
        """Exit the thread"""
        return winproxy.TerminateThread(self.handle, code)

    def resume(self):
        """Resume the thread"""
        return winproxy.ResumeThread(self.handle)

    def suspend(self):
        """Suspend the thread"""
        return winproxy.SuspendThread(self.handle)

    def _get_handle(self):
        return winproxy.OpenThread(dwThreadId=self.tid)

    @property
    def is_exit(self):
        """Is ``True`` if the thread is terminated

        :type: :class:`bool`"""
        return self.exit_code != STILL_ACTIVE

    @property
    def exit_code(self):
        """The exit code of the thread : ``STILL_ACTIVE`` means the process is not dead

        :type: :class:`int`"""
        res = DWORD()
        winproxy.GetExitCodeThread(self.handle, byref(res))
        return res.value

    def __repr__(self):
        owner = self.owner
        if owner is None:
            owner_name = "<Dead process with pid {0}>".format(hex(self.th32OwnerProcessID))
        else:
            owner_name = owner.name
        return '<{0} {1} owner "{2}" at {3}>'.format(self.__class__.__name__, self.tid, owner_name, hex(id(self)))

    @staticmethod
    def _from_handle(handle):
        tid = winproxy.GetThreadId(handle)
        try:
            # Really useful ?
            thread = [t for t in System().threads if t.tid == tid][0]
            # set AutoHandle _handle
            thread._handle = handle
            dbgprint("Thread {0} from handle {1}".format(thread, hex(handle)), "HANDLE")
            return thread
        except IndexError:
            dbgprint("DeadThread from handle {0}".format(hex(handle)), "HANDLE")
            return DeadThread(handle, tid)

class DeadThread(AutoHandle):
    """An already dead thread"""
    def __init__(self, handle, tid=None):
        if tid is None:
            tid = winproxy.GetThreadId(handle)
        self.tid = tid
        # set AutoHandle _handle
        self._handle = handle

    @property
    def is_exit(self):
        """Is ``True`` if the thread is terminated

        :type: :class:`bool`"""
        return self.exit_code != STILL_ACTIVE

    @property
    def exit_code(self):
        """The exit code of the thread : ``STILL_ACTIVE`` means the process is not dead

        :type: :class:`int`"""
        res = DWORD()
        winproxy.GetExitCodeThread(self.handle, byref(res))
        return res.value


class Process(AutoHandle):
    @utils.fixedpropety
    def is_wow_64(self):
        """``True`` if the process is a SysWow64 process (32bit process on 64bits system).

        :type: :class:`bool`"""
        return utils.is_wow_64(self.handle)

    @utils.fixedpropety
    def bitness(self):
        """The bitness of the process

        :returns: :class:`int` -- 32 or 64"""
        if windows.system.bitness == 32:
            return 32
        if self.is_wow_64:
            return 32
        return 64

    @property
    def threads(self):
        """The threads of the process

        :type: [:class:`WinThread`] -- A list of Thread"""
        return [thread for thread in windows.system.threads if thread.th32OwnerProcessID == self.pid]

    def virtual_alloc(self, size):
        raise NotImplementedError("virtual_alloc")

    def virtual_free(self):
        raise NotImplementedError("virtual_free")

    @property
    def exit_code(self):
        """The exit code of the process : ``STILL_ACTIVE`` means the process is not dead

        :type: :class:`int`"""
        res = DWORD()
        winproxy.GetExitCodeProcess(self.handle, byref(res))
        return res.value

    @property
    def is_exit(self):
        """``True`` if the process is terminated

        :type: :class:`bool`"""
        return self.exit_code != STILL_ACTIVE

    @contextmanager
    def allocated_memory(self, size):
        """ContextManager to allocate memory and free it

            :type: :class:`int` -- the address of the allocated memory"""
        addr = self.virtual_alloc(size)
        try:
            yield addr
        finally:
            windows.winproxy.VirtualFreeEx(self.handle, addr)

    def execute(self, code, parameter=0):
        """Execute some native code in the context of the process

           :return: The thread executing the code
           :rtype: :class:`WinThread` or :class:`DeadThread`"""
        x = self.virtual_alloc(len(code)) #Todo: free this ? when ? how ? reuse ?
        self.write_memory(x, code)
        return self.create_thread(x, parameter)

    def query_memory(self, addr):
        """Query the memory informations about page at ``addr``

            :rtype: :class:`MEMORY_BASIC_INFORMATION`"""
        if windows.current_process.bitness == 32 and self.bitness == 64:
            res = MEMORY_BASIC_INFORMATION64()
            try:
                v = windows.syswow64.NtQueryVirtualMemory_32_to_64(ProcessHandle=self.handle, BaseAddress=addr, MemoryInformation=res)
            except NtStatusException as e:
                if e.code & 0xffffffff == 0XC000000D:
                    raise winproxy.Kernel32Error("NtQueryVirtualMemory_32_to_64")
                raise
            return res

        info_type = {32 : MEMORY_BASIC_INFORMATION32, 64 : MEMORY_BASIC_INFORMATION64}
        res = info_type[windows.current_process.bitness]()
        ptr = ctypes.cast(byref(res), POINTER(MEMORY_BASIC_INFORMATION))
        winproxy.VirtualQueryEx(self.handle, addr, ptr, sizeof(res))
        return res

    def memory_state(self):
        """Yield the memory information for the whole address space of the process

            :yield: :class:`MEMORY_BASIC_INFORMATION`"""
        addr = 0
        res = []
        while True:
            try:
                x = self.query_memory(addr)
                yield x
            except winproxy.Kernel32Error:
                return
            addr += x.RegionSize

    def mapped_filename(self, addr):
        """The filename mapped at address ``addr`` or None

            :rtype: :class:`str` or None"""
        buffer = ctypes.c_buffer(0x1024)
        try:
            size = windows.winproxy.GetMappedFileNameA(self.handle, addr, buffer)
        except windows.winproxy.Kernel32Error:
            return None
        return buffer[:size]

    def read_byte(self, addr):
        """Read a ``CHAR`` at ``addr``"""
        sizeof_char = sizeof(CHAR)
        return struct.unpack("<B", self.read_memory(addr, sizeof_char))[0]

    def read_dword(self, addr):
        """Read a ``DWORD`` at ``addr``"""
        sizeof_dword = sizeof(DWORD)
        return struct.unpack("<I", self.read_memory(addr, sizeof_dword))[0]

    def read_qword(self, addr):
        """Read a ``ULONG64`` at ``addr``"""
        sizeof_qword = sizeof(ULONG64)
        return struct.unpack("<Q", self.read_memory(addr, sizeof_qword))[0]

    def read_ptr(self, addr):
        """Read a ``PTR`` at ``addr``"""
        if self.bitness == 32:
            return self.read_dword(addr)
        return self.read_qword(addr)

    def read_string(self, addr):
        """Read an ascii string at ``addr``"""
        res = []
        for i in itertools.count():
            x = self.read_memory(addr + (i * 0x100), 0x100)
            if "\x00" in x:
                res.append(x.split("\x00", 1)[0])
                break
            res.append(x)
        return "".join(res)

    def read_wstring(self, addr):
        """Read a windows UTF16 string at ``addr``"""
        res = []
        for i in itertools.count():
            x = self.read_memory(addr + (i * 0x100), 0x100)
            utf16_chars = ["".join(c) for c in zip(*[iter(x)] * 2)]
            if "\x00\x00" in utf16_chars:
                res.extend(utf16_chars[:utf16_chars.index("\x00\x00")])
                break
            res.extend(x)
        return "".join(res).decode('utf16')

    def write_byte(self, addr, byte):
        """write a byte at ``addr``"""
        return self.write_memory(addr, struct.pack("<B", byte))

    def write_word(self, addr, word):
        """write a word at ``addr``"""
        return self.write_memory(addr, struct.pack("<H", word))

    def write_dword(self, addr, dword):
        """write a dword at ``addr``"""
        return self.write_memory(addr, struct.pack("<I", dword))

    def write_qword(self, addr, qword):
        """write a qword at ``addr``"""
        return self.write_memory(addr, struct.pack("<Q", qword))

    @utils.fixedpropety
    def token(self):
        """The token of the process

            :type: :class:`Token`"""
        token_handle = HANDLE()
        winproxy.OpenProcessToken(self.handle, TOKEN_ALL_ACCESS, byref(token_handle))
        return Token(token_handle.value)


class CurrentThread(AutoHandle):
    """The current thread"""
    @utils.fixedpropety
    def tid(self):
        """Thread ID

        :type: :class:`int`"""
        return winproxy.GetCurrentThreadId()

    @utils.fixedpropety
    def owner(self):
        """The current process

        :type: :class:`CurrentProcess`"""
        return windows.current_process

    def _get_handle(self):
        return winproxy.GetCurrentThread()

    def __del__(self):
        pass

    def exit(self, code=0):
        """Exit the thread"""
        return winproxy.ExitThread(code)

    def wait(self):
        """Raise ``ValueError`` to prevent deadlock :D"""
        raise ValueError("wait() on current thread")


class CurrentProcess(Process):
    """The current process"""
    get_peb = None

    get_peb_32_code = x86.MultipleInstr()
    get_peb_32_code += x86.Mov('EAX', x86.mem('fs:[0x30]'))
    get_peb_32_code += x86.Ret()
    get_peb_32_code = get_peb_32_code.get_code()

    get_peb_64_code = x64.MultipleInstr()
    get_peb_64_code += x64.Mov('RAX', x64.mem('gs:[0x60]'))
    get_peb_64_code += x64.Ret()
    get_peb_64_code = get_peb_64_code.get_code()

    allocator = native_exec.native_function.allocator

    def get_peb_builtin(self):
        if self.get_peb is not None:
            return self.get_peb
        if self.bitness == 32:
            get_peb = native_exec.create_function(self.get_peb_32_code, [PVOID])
        else:
            get_peb = native_exec.create_function(self.get_peb_64_code, [PVOID])
        self.get_peb = get_peb
        return get_peb

    def _get_handle(self):
        return winproxy.GetCurrentProcess()

    def __del__(self):
        pass

    @property
    def pid(self):
        """Process ID

        :type: :class:`int`"""
        return os.getpid()

    # Is there a better way ?
    @utils.fixedpropety
    def ppid(self):
        """Parent Process ID

        :type: :class:`int`"""
        return [p for p in windows.system.processes if p.pid == self.pid][0].ppid

    @utils.fixedpropety
    def peb(self):
        """The Process Environment Block of the current process

        :type: :class:`PEB`"""
        return PEB.from_address(self.get_peb_builtin()())

    @utils.fixedpropety
    def bitness(self):
        """The bitness of the process

        :type: :class:`int` -- 32 or 64"""
        import platform
        bits = platform.architecture()[0]
        return int(bits[:2])

    def virtual_alloc(self, size):
        """Allocate memory in the process

        :return: The address of the allocated memory
        :rtype: :class:`int`"""
        return winproxy.VirtualAlloc(dwSize=size)

    def virtual_free(self, addr):
        """Free memory in the process by virtual_alloc"""
        return winproxy.VirtualFree(addr)

    def write_memory(self, addr, data):
        """Write data at addr"""
        buffertype = (c_char * len(data)).from_address(addr)
        buffertype[:len(data)] = data
        return True

    def read_memory(self, addr, size):
        """Read ``size`` from ``addr``

        :return: The data read
        :rtype: :class:`str`"""
        dbgprint('Read CurrentProcess Memory', 'READMEM')
        buffer = (c_char * size).from_address(addr)
        return buffer[:]

    def create_thread(self, lpStartAddress, lpParameter, dwCreationFlags=0):
        """Create a new thread

        :rtype: :class:`WinThread` or :class:`DeadThread`"""
        handle = winproxy.CreateThread(lpStartAddress=lpStartAddress, lpParameter=lpParameter, dwCreationFlags=dwCreationFlags)
        return WinThread._from_handle(handle)

    def exit(self, code=0):
        """Exit the process"""
        return winproxy.ExitProcess(code)

    def wait(self):
        """Raise ``ValueError`` to prevent deadlock :D"""
        raise ValueError("wait() on current thread")

    @utils.fixedpropety
    def peb_syswow(self):
        """The 64bits PEB of a SysWow64 process

            :type: :class:`PEB`"""
        if not self.is_wow_64:
            raise ValueError("Not a syswow process")
        return windows.syswow64.get_current_process_syswow_peb()

class WinProcess(PROCESSENTRY32, Process):
    """A Process on the system"""
    is_pythondll_injected = 0
    is_remote_slave_running = False

    @staticmethod
    def _from_handle(handle):
        pid = winproxy.GetProcessId(handle)
        proc = [p for p in windows.system.processes if p.pid == pid][0]
        proc._handle = handle
        dbgprint("Process {0} from handle {1}".format(proc, hex(handle)), "HANDLE")
        return proc


    @utils.fixedpropety
    def name(self):
        """Name of the process

        :type: :class:`str`"""
        return self.szExeFile[:].decode()

    @utils.fixedpropety
    def pid(self):
        """Process ID

        :type: :class:`int`"""
        return self.th32ProcessID

    @utils.fixedpropety
    def ppid(self):
        """Parent Process ID

        :type: :class:`int`"""
        return self.th32ParentProcessID

    def _get_handle(self):
        return winproxy.OpenProcess(dwProcessId=self.pid)

    def __repr__(self):
        return '<{0} "{1}" pid {2} at {3}>'.format(self.__class__.__name__, self.name, self.pid, hex(id(self)))

    def virtual_alloc(self, size):
        """Allocate memory in the process

        :return: The address of the allocated memory
        :rtype: :class:`int`"""
        return winproxy.VirtualAllocEx(self.handle, dwSize=size)

    def virtual_free(self, addr):
        """Free memory in the process by virtual_alloc"""
        return winproxy.VirtualFreeEx(self.handle, addr)

    def write_memory(self, addr, data):
        """Write `data` at `addr`"""
        return winproxy.WriteProcessMemory(self.handle, addr, lpBuffer=data)

    def low_read_memory(self, addr, buffer_addr, size):
        if windows.current_process.bitness == 32 and self.bitness == 64:
            # OptionalExport can be None (see winproxy.py)
            if winproxy.NtWow64ReadVirtualMemory64 is None:
                raise ValueError("NtWow64ReadVirtualMemory64 non available in ntdll: cannot read into 64bits processus")
            return winproxy.NtWow64ReadVirtualMemory64(self.handle, addr, buffer_addr, size)
            NtWow64ReadVirtualMemory64
        #if self.is_wow_64 and addr > 0xffffffff:
        #    return winproxy.NtWow64ReadVirtualMemory64(self.handle, addr, buffer_addr, size)
        return winproxy.ReadProcessMemory(self.handle, addr, lpBuffer=buffer_addr, nSize=size)

    def read_memory(self, addr, size):
        """Read ``size`` from ``addr``

        :return: The data read
        :rtype: :class:`str`"""
        buffer = ctypes.create_string_buffer(size)
        self.low_read_memory(addr, ctypes.byref(buffer), size)
        return buffer[:]

    # Simple cache test
    # real_read = read_memory
    #
    # def read_memory(self, addr, size):
    #     """Cached version for test"""
    #     dbgprint('Read remote Memory of {0}'.format(self), 'READMEM')
    #     if not hasattr(self, "_cache_cache"):
    #         self._cache_cache = {}
    #     page_addr = addr & 0xfffffffffffff000
    #     if page_addr in self._cache_cache:
    #         #print("CACHED Read on page {0}".format(hex(page_addr)))
    #         page_data = self._cache_cache[page_addr]
    #         return page_data[addr & 0xfff: (addr & 0xfff) + size]
    #     else:
    #         page_data = self.real_read(page_addr, 0x1000)
    #         self._cache_cache[page_addr] = page_data
    #         return page_data[addr & 0xfff: (addr & 0xfff) + size]

    def read_memory_into(self, addr, struct):
        """Read a :mod:`ctypes` struct from `addr`

            :returns: struct"""
        self.low_read_memory(addr, ctypes.byref(struct), ctypes.sizeof(struct))
        return struct

    def create_thread(self, addr, param):
        """Create a remote thread

            :rtype: :class:`WinThread` or :class:`DeadThread`"""
        if windows.current_process.bitness == 32 and self.bitness == 64:
            thread_handle = HANDLE()
            windows.syswow64.NtCreateThreadEx_32_to_64(ThreadHandle=byref(thread_handle) ,ProcessHandle=self.handle, lpStartAddress=addr, lpParameter=param)
            return WinThread._from_handle(thread_handle.value)
        return WinThread._from_handle(winproxy.CreateRemoteThread(hProcess=self.handle, lpStartAddress=addr, lpParameter=param))

    def load_library(self, dll_path):
        """Load the library in remote process"""
        return windows.injection.load_dll_in_remote_process(self, dll_path)

    def execute_python(self, pycode):
        """Execute Python code into the remote process.

        This function waits for the remote process to end and
        raises an exception if the remote thread raised one"""
        return injection.safe_execute_python(self, pycode)

    def execute_python_unsafe(self, pycode):
        """Execute Python code into the remote process.

           Unsafe means that no information are returned about the execution of the thread
        """
        return injection.execute_python_code(self, pycode)

    @utils.fixedpropety
    def peb_addr(self):
        """The address of the PEB

            :type: :class:`int`"""
        if windows.current_process.bitness == 32 and self.bitness == 64:
            x = windows.remotectypes.transform_type_to_remote64bits(PROCESS_BASIC_INFORMATION)
            # Fuck-it <3
            data = (ctypes.c_char * ctypes.sizeof(x))()
            windows.syswow64.NtQueryInformationProcess_32_to_64(self.handle, ProcessInformation=data, ProcessInformationLength=ctypes.sizeof(x))
            peb_offset = x.PebBaseAddress.offset
            peb_addr = struct.unpack("<Q", data[x.PebBaseAddress.offset: x.PebBaseAddress.offset+8])[0]
        elif windows.current_process.bitness == 64 and self.bitness == 32:
            information_type = 26
            y = ULONGLONG()
            windows.winproxy.NtQueryInformationProcess(self.handle, information_type, byref(y), sizeof(y))
            peb_addr = y.value
        else:
            information_type = 0
            x = PROCESS_BASIC_INFORMATION()
            windows.winproxy.NtQueryInformationProcess(self.handle, information_type, x)
            peb_addr = ctypes.cast(x.PebBaseAddress, PVOID).value
        if peb_addr is None:
            raise ValueError("Could not get peb addr of process {0}".format(self.name))
        return peb_addr

    @utils.fixedpropety
    def peb(self):
        """The PEB of the remote process (see :mod:`remotectypes`)

            :type: :class:`PEB`"""
        if windows.current_process.bitness == 32 and self.bitness == 64:
            return RemotePEB64(self.peb_addr, self)
        if windows.current_process.bitness == 64 and self.bitness == 32:
            return RemotePEB32(self.peb_addr, self)
        return RemotePEB(self.peb_addr, self)

    @utils.fixedpropety
    def peb_syswow(self):
        """The 64bits PEB of a SysWow64 process

            :type: :class:`PEB`"""
        if not self.is_wow_64:
            raise ValueError("Not a syswow process")
        if windows.current_process.bitness == 64:
            information_type = 0
            x = PROCESS_BASIC_INFORMATION()
            windows.winproxy.NtQueryInformationProcess(self.handle, information_type, x)
            peb_addr = ctypes.cast(x.PebBaseAddress, PVOID).value
            return RemotePEB(peb_addr, self)
        else: #current is 32bits
            x = windows.remotectypes.transform_type_to_remote64bits(PROCESS_BASIC_INFORMATION)
            # Fuck-it <3
            data = (ctypes.c_char * ctypes.sizeof(x))()
            windows.syswow64.NtQueryInformationProcess_32_to_64(self.handle, ProcessInformation=data, ProcessInformationLength=ctypes.sizeof(x))
            peb_offset = x.PebBaseAddress.offset
            peb_addr = struct.unpack("<Q", data[x.PebBaseAddress.offset: x.PebBaseAddress.offset+8])[0]
            return RemotePEB64(peb_addr, windows.syswow64.ReadSyswow64Process(self))

    def exit(self, code=0):
        """Exit the process"""
        return winproxy.TerminateProcess(self.handle, code)


# Create ProcessToken and Thread Token objects ?
class Token(AutoHandle):
    """The token of a process"""
    def __init__(self, handle):
        self._handle = handle

    @property
    def integrity(self):
        """Return the integrity level of a process

            :type: :class:`int`"""
        buffer_size = self.get_required_information_size(TokenIntegrityLevel)
        buffer = ctypes.c_buffer(buffer_size)
        self.get_informations(TokenIntegrityLevel, buffer)

        sid = ctypes.cast(buffer, POINTER(TOKEN_MANDATORY_LABEL))[0].Label.Sid
        count = winproxy.GetSidSubAuthorityCount(sid)
        integrity = winproxy.GetSidSubAuthority(sid, ord(count[0]) - 1)[0]
        return integrity

    @property
    def is_elevated(self):
        """``True`` if process is Admin"""
        elevation = TOKEN_ELEVATION()
        self.get_informations(TokenElevation, elevation)
        return bool(elevation.TokenIsElevated)

    def get_informations(self, info_type, data):
        cbsize = DWORD()
        winproxy.GetTokenInformation(self.handle, info_type, ctypes.byref(data), ctypes.sizeof(data), ctypes.byref(cbsize))
        return cbsize.value

    def get_required_information_size(self, info_type):
        cbsize = DWORD()
        try:
            winproxy.GetTokenInformation(self.handle, info_type, None, 0, ctypes.byref(cbsize))
        except WindowsError:
            pass
        return cbsize.value

class LoadedModule(LDR_DATA_TABLE_ENTRY):
    """An entry in the PEB Ldr list"""
    @property
    def baseaddr(self):
        """Base address of the module

        :type: :class:`int`"""
        return self.DllBase

    @property
    def name(self):
        """Name of the module

        :type: :class:`str`"""
        return str(self.BaseDllName.Buffer).lower()

    @property
    def fullname(self):
        """Full name of the module (path)

        :type: :class:`str`"""
        return self.FullDllName.Buffer.decode()

    def __repr__(self):
        return '<{0} "{1}" at {2}>'.format(self.__class__.__name__, self.name, hex(id(self)))

    @property
    def pe(self):
        """A PE representation of the module

        :type: :class:`windows.pe_parse.PEFile`"""
        return pe_parse.GetPEFile(self.baseaddr)


class WinUnicodeString(LSA_UNICODE_STRING):
    """LSA_UNICODE_STRING with a nice `__repr__`"""
    fields = [f[0] for f in LSA_UNICODE_STRING._fields_]
    """The fields of the structure"""

    def __repr__(self):
        return """<{0} "{1}" at {2}>""".format(type(self).__name__, self.Buffer, hex(id(self)))


class LIST_ENTRY_PTR(PVOID):
    def TO_LDR_ENTRY(self):
        return LDR_DATA_TABLE_ENTRY.from_address(self.value - sizeof(PVOID) * 2)


def transform_ctypes_fields(struct, replacement):
    return [(name, replacement.get(name, type)) for name, type in struct._fields_]


class RTL_USER_PROCESS_PARAMETERS(Structure):
    _fields_ = transform_ctypes_fields(RTL_USER_PROCESS_PARAMETERS,  # The one in generated_def
                                       {"ImagePathName": WinUnicodeString,
                                        "CommandLine": WinUnicodeString}
                                       )


class PEB(Structure):
    """The PEB (Process Environment Block) of the current process"""
    _fields_ = transform_ctypes_fields(PEB,  # The one in generated_def
                                       {"ProcessParameters": POINTER(RTL_USER_PROCESS_PARAMETERS)}
                                       )

    @property
    def imagepath(self):
        """The ImagePathName of the PEB

        :type: :class:`WinUnicodeString`"""
        return self.ProcessParameters.contents.ImagePathName

    @property
    def commandline(self):
        """The CommandLine of the PEB

        :type: :class:`WinUnicodeString`"""
        # This or changing the __repr__ of LSA_UNICODE_STRING
        return self.ProcessParameters.contents.CommandLine

    @property
    def modules(self):
        """The loaded modules present in the PEB

        :type: [:class:`LoadedModule`] -- List of loaded modules"""
        res = []
        list_entry_ptr = ctypes.cast(self.Ldr.contents.InMemoryOrderModuleList.Flink, LIST_ENTRY_PTR)
        current_dll = list_entry_ptr.TO_LDR_ENTRY()
        while current_dll.DllBase:
            res.append(current_dll)
            list_entry_ptr = ctypes.cast(current_dll.InMemoryOrderLinks.Flink, LIST_ENTRY_PTR)
            current_dll = list_entry_ptr.TO_LDR_ENTRY()
        return [LoadedModule.from_address(addressof(LDR)) for LDR in res]

import windows.remotectypes as rctypes

class RemoteLoadedModule(rctypes.RemoteStructure.from_structure(LoadedModule)):
    @property
    def pe(self):
        """A PE representation of the module

        :type: :class:`windows.pe_parse.PEFile`"""
        return pe_parse.GetPEFile(self.baseaddr, target=self._target)


class RemotePEB(rctypes.RemoteStructure.from_structure(PEB)):

    def ptr_flink_to_remote_module(self, ptr_value):
        return RemoteLoadedModule(ptr_value - ctypes.sizeof(ctypes.c_void_p) * 2, self._target)

    @property
    def modules(self):
        """The loaded modules present in the PEB

        :type: [:class:`LoadedModule`] -- List of loaded modules"""
        res = []
        if not self.Ldr.value:
                raise ValueError("PEB->Ldr is NULL: cannot walk the module list")
        list_entry_ptr = self.Ldr.contents.InMemoryOrderModuleList.Flink.raw_value
        current_dll = self.ptr_flink_to_remote_module(list_entry_ptr)
        while current_dll.DllBase:
            res.append(current_dll)
            list_entry_ptr = current_dll.InMemoryOrderLinks.Flink.raw_value
            current_dll = self.ptr_flink_to_remote_module(list_entry_ptr)
        return res


if CurrentProcess().bitness == 32:
    class RemoteLoadedModule64(rctypes.transform_type_to_remote64bits(LoadedModule)):
        @property
        def pe(self):
            """A PE representation of the module

            :type: :class:`windows.pe_parse.PEFile`"""
            return pe_parse.GetPEFile(self.baseaddr, target=self._target)

    class RemotePEB64(rctypes.transform_type_to_remote64bits(PEB)):

        def ptr_flink_to_remote_module(self, ptr_value):
            return RemoteLoadedModule64(ptr_value - ctypes.sizeof(rctypes.c_void_p64) * 2, self._target)

        @property
        def modules(self):
            """The loaded modules present in the PEB

            :type: [:class:`LoadedModule`] -- List of loaded modules"""
            res = []
            if not self.Ldr.value:
                raise ValueError("PEB->Ldr is NULL: cannot walk the module list")
            list_entry_ptr = self.Ldr.contents.InMemoryOrderModuleList.Flink.raw_value
            current_dll = self.ptr_flink_to_remote_module(list_entry_ptr)
            while current_dll.DllBase:
                res.append(current_dll)
                list_entry_ptr = current_dll.InMemoryOrderLinks.Flink.raw_value
                current_dll = self.ptr_flink_to_remote_module(list_entry_ptr)
            return res

if CurrentProcess().bitness == 64:

    class RemoteLoadedModule32(rctypes.transform_type_to_remote32bits(LoadedModule)):
        @property
        def pe(self):
            """A PE representation of the module

            :type: :class:`windows.pe_parse.PEFile`"""
            return pe_parse.GetPEFile(self.baseaddr, target=self._target)

    class RemotePEB32(rctypes.transform_type_to_remote32bits(PEB)):

        def ptr_flink_to_remote_module(self, ptr_value):
            return RemoteLoadedModule32(ptr_value - ctypes.sizeof(rctypes.c_void_p32) * 2, self._target)

        @property
        def modules(self):
            """The loaded modules present in the PEB

            :type: [:class:`LoadedModule`] -- List of loaded modules"""
            res = []
            if not self.Ldr.value:
                raise ValueError("PEB->Ldr is NULL: cannot walk the module list")
            list_entry_ptr = self.Ldr.contents.InMemoryOrderModuleList.Flink.raw_value
            current_dll = self.ptr_flink_to_remote_module(list_entry_ptr)
            while current_dll.DllBase:
                res.append(current_dll)
                list_entry_ptr = current_dll.InMemoryOrderLinks.Flink.raw_value
                current_dll = self.ptr_flink_to_remote_module(list_entry_ptr)
            return res