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flc.py
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flc.py
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#Boa:Frame:flc
#
# Description:
# File Location Calculator
# Author:
# +NCR/CRC! [ReVeRsEr] (nriva)
#
# Copyright (c) 2009 Nahuel Cayetano Riva <nahuelriva@gmail.com>
#
# 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.
__revision__ = "$Id: flc.py 236 2009-09-23 01:27:37Z reversing $"
import wx
from app import pedata
from app.common import hex_up, get_hex_bytes
def create(parent):
return flc(parent)
[wxID_FLC, wxID_FLCADDITIONAL_INFORMATION, wxID_FLCADDRESSES, wxID_FLCBYTES,
wxID_FLCCONVERT, wxID_FLCHEXEDIT, wxID_FLCOFFSET, wxID_FLCRVA,
wxID_FLCSECTION, wxID_FLCVA, wxID_FLC_BYTES, wxID_FLC_OFFSET, wxID_FLC_RVA,
wxID_FLC_SECTION, wxID_FLC_VA,
] = [wx.NewId() for _init_ctrls in range(15)]
class flc(wx.Frame):
def _init_ctrls(self, prnt):
# generated method, don't edit
wx.Frame.__init__(self, id=wxID_FLC, name='flc', parent=prnt,
pos=wx.Point(457, 381), size=wx.Size(363, 236),
style=wx.DEFAULT_FRAME_STYLE^wx.MAXIMIZE_BOX^wx.RESIZE_BORDER,
title='[ File Location Calculator ]')
self.SetClientSize(wx.Size(347, 200))
self.Bind(wx.EVT_CLOSE, self.OnClose)
self.addresses = wx.StaticBox(id=wxID_FLCADDRESSES, label='Addresses',
name='addresses', parent=self, pos=wx.Point(8, 8),
size=wx.Size(248, 100), style=0)
self.additional_information = wx.StaticBox(id=wxID_FLCADDITIONAL_INFORMATION,
label='Additional Information', name='additional_information',
parent=self, pos=wx.Point(8, 112), size=wx.Size(248, 80),
style=0)
self.convert = wx.Button(id=wxID_FLCCONVERT, label='Convert',
name='convert', parent=self, pos=wx.Point(264, 16),
size=wx.Size(75, 23), style=0)
self.hexedit = wx.Button(id=wxID_FLCHEXEDIT, label='Hex Edit',
name='hexedit', parent=self, pos=wx.Point(264, 168),
size=wx.Size(75, 23), style=0)
self.section = wx.StaticText(id=wxID_FLCSECTION, label='Section',
name='section', parent=self, pos=wx.Point(24, 136),
size=wx.Size(36, 13), style=0)
self.bytes = wx.StaticText(id=wxID_FLCBYTES, label='Bytes',
name='bytes', parent=self, pos=wx.Point(24, 160), size=wx.Size(28,
13), style=0)
self._va = wx.TextCtrl(id=wxID_FLC_VA, name='_va', parent=self,
pos=wx.Point(144, 24), size=wx.Size(100, 21), style=0, value='')
self._rva = wx.TextCtrl(id=wxID_FLC_RVA, name='_rva', parent=self,
pos=wx.Point(144, 48), size=wx.Size(100, 21), style=0, value='')
self._offset = wx.TextCtrl(id=wxID_FLC_OFFSET, name='_offset',
parent=self, pos=wx.Point(144, 72), size=wx.Size(100, 21),
style=0, value='')
self._section = wx.TextCtrl(id=wxID_FLC_SECTION, name='_section',
parent=self, pos=wx.Point(144, 136), size=wx.Size(100, 21),
style=0, value='')
self._bytes = wx.TextCtrl(id=wxID_FLC_BYTES, name='_bytes', parent=self,
pos=wx.Point(88, 160), size=wx.Size(156, 21), style=0, value='')
self.va = wx.Button(id=wxID_FLCVA, label='VA', name='va', parent=self,
pos=wx.Point(32, 24), size=wx.Size(75, 23), style=wx.NO_BORDER)
self.rva = wx.Button(id=wxID_FLCRVA, label='RVA', name='rva',
parent=self, pos=wx.Point(32, 48), size=wx.Size(75, 23), style=wx.NO_BORDER)
self.offset = wx.Button(id=wxID_FLCOFFSET, label='Offset',
name='offset', parent=self, pos=wx.Point(32, 72), size=wx.Size(75,
23), style=wx.NO_BORDER)
# we do not have an hex editor rigth now so we must hide this button.
self.hexedit.Enable(False)
self.hexedit.Hide()
self._va.Enable(False)
self._offset.Enable(False)
self.va.Bind(wx.EVT_BUTTON, self.OnVAButton, id=wxID_FLCVA)
self.offset.Bind(wx.EVT_BUTTON, self.OnOffsetButton, id=wxID_FLCOFFSET)
self.rva.Bind(wx.EVT_BUTTON, self.OnRVAButton, id=wxID_FLCRVA)
self.convert.Bind(wx.EVT_BUTTON, self.OnConvertButton, id=wxID_FLCCONVERT)
def __init__(self, parent):
self._init_ctrls(parent)
self._pe = parent.peInstance
self.parentDlg = parent
def OnClose(self, event):
self.parentDlg.Restore()
self.Destroy()
def OnVAButton(self, event):
self._va.Enable(True)
self._offset.Enable(False)
self._rva.Enable(False)
self._CleanCtrls()
def OnOffsetButton(self, event):
self._offset.Enable(True)
self._rva.Enable(False)
self._va.Enable(False)
self._CleanCtrls()
def OnRVAButton(self, event):
self._rva.Enable(True)
self._offset.Enable(False)
self._va.Enable(False)
self._CleanCtrls()
def OnConvertButton(self, event):
if self._rva.IsEnabled():
self._ConvertFromRVA()
elif self._offset.IsEnabled():
self._ConvertFromOffset()
else:
self._ConvertFromVA()
def _ConvertFromRVA(self):
rva = self._rva.GetValue()
if not rva:
rva = 0
else:
rva = int(rva, 16)
try:
offset = pedata.fromRvaToOffset(self._pe, rva)
va = rva + self._pe.OPTIONAL_HEADER.ImageBase
idx = pedata.guess_section_from_rva(self._pe, rva)
if idx == -1:
section = "Header"
else:
section = self._pe.sections[idx].Name
bytes = get_hex_bytes(self._pe.get_data(rva, 16))
self.PrintDataInCtrls(rva, va, offset, section, bytes)
except Exception, e:
#import traceback
#traceback.print_exc()
self._ShowError(e)
def _ConvertFromOffset(self):
offset = self._offset.GetValue()
if not offset:
offset = 0
else:
offset = int(offset, 16)
try:
if not offset < self._pe.sections[0].PointerToRawData:
rva = self._pe.get_rva_from_offset(offset)
else:
rva = offset
va = rva + self._pe.OPTIONAL_HEADER.ImageBase
idx = pedata.guess_section_from_rva(self._pe, rva)
if idx == -1:
section = "HEADER"
else:
section = self._pe.sections[idx].Name
bytes = get_hex_bytes(self._pe.get_data(rva, 16))
self.PrintDataInCtrls(rva, va, offset, section, bytes)
except Exception, e:
self._ShowError(e)
def _ConvertFromVA(self):
va = self._va.GetValue()
if not va:
va = 0
else:
va = int(va, 16)
try:
rva = va - self._pe.OPTIONAL_HEADER.ImageBase
offset = pedata.fromRvaToOffset(self._pe, rva)
idx = pedata.guess_section_from_rva(self._pe, rva)
if idx == -1:
section = "HEADER"
else:
section = self._pe.sections[idx].Name
bytes = get_hex_bytes(self._pe.get_data(rva, 16))
self.PrintDataInCtrls(rva, va, offset, section, bytes)
except Exception, e:
self._ShowError(e)
def PrintDataInCtrls(self, rva, va, offset, section, bytes):
to_len = 8
if self.parentDlg.Parent._PE64:
to_len = 16
self._rva.SetValue(hex_up(rva, to_len))
self._va.SetValue(hex_up(va, to_len))
self._offset.SetValue(hex_up(offset, to_len))
self._section.SetValue(section)
self._bytes.SetValue(bytes)
def _CleanCtrls(self):
self._rva.SetValue("")
self._va.SetValue("")
self._offset.SetValue("")
self._section.SetValue("")
self._bytes.SetValue("")
def _ShowError(self, e):
wx.MessageBox(str(e), "Error", wx.ICON_ERROR)