#!/usr/bin/env python

# This file is part of Androguard.
#
# Copyright (C) 2012, Anthony Desnos <desnos at t0t0.fr>
# All rights reserved.
#
# Androguard is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Androguard is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Androguard.  If not, see <http://www.gnu.org/licenses/>.

import sys, os
from optparse import OptionParser

from androguard.core.bytecodes import apk, dvm
from androguard.core.data import data
from androguard.core.analysis import analysis, ganalysis
from androguard.core import androconf
from androguard.util import read

option_0 = { 'name' : ('-i', '--input'), 'help' : 'filename input (dex, apk)', 'nargs' : 1 }
option_1 = { 'name' : ('-o', '--output'), 'help' : 'directory output', 'nargs' : 1 }

options = [option_0, option_1]

def create_directory( class_name, output ):
    output_name = output
    if output_name[-1] != "/":
        output_name = output_name + "/"

    try:
        os.makedirs( output_name + class_name )
    except OSError:
        pass

def create_directories( vm, output ):
    for class_name in vm.get_classes_names():
        z = os.path.split( class_name )[0]
        create_directory( z[1:], output )

def main(options, arguments):
    if options.input != None and options.output != None:
        ret_type = androconf.is_android( options.input )
        vm = None
        a = None
        if ret_type == "APK":
            a = apk.APK( options.input )
            if a.is_valid_APK():
                vm = dvm.DalvikVMFormat( a.get_dex() )
            else:
                print("INVALID APK")
        elif ret_type == "DEX":
            try:
                vm = dvm.DalvikVMFormat( read(options.input) )
            except Exception as e:
                print("INVALID DEX", e)


        vmx = analysis.VMAnalysis( vm )
        gvmx = ganalysis.GVMAnalysis( vmx, a )

        create_directories( vm, options.output )

#        dv.export_to_gml( options.output )

        dd = data.Data(vm, vmx, gvmx, a)

        buff = dd.export_apk_to_gml()
        androconf.save_to_disk( buff, options.output + "/" + "apk.graphml" )

        buff = dd.export_methodcalls_to_gml()
        androconf.save_to_disk( buff,  options.output + "/" + "methodcalls.graphml" )

        buff = dd.export_dex_to_gml()
        for i in buff:
            androconf.save_to_disk( buff[i], options.output + "/" + i + ".graphml" )

if __name__ == "__main__":
   parser = OptionParser()
   for option in options:
	  param = option['name']
	  del option['name']
	  parser.add_option(*param, **option)


   options, arguments = parser.parse_args()
   sys.argv[:] = arguments
   main(options, arguments)
