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java_monitor.py
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java_monitor.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import os
from logger import log
# Landroid/widget/TextView;->setText(Ljava/lang/CharSequence;)V
# Lorg/honeynet/apimonitor/APIMonitor;->android_widget_TextView__setText(Landroid/widget/TextView;Ljava/lang/CharSequence;)V
# example java code:
# package org.honeynet.apimonitor;
# import android.util.Log;
# import android.widget.TextView;
# public class APIMonitor {
# private static final String TAG = "APIMonitor";
# public static void android_widget_TextView__setText(TextView textView, CharSequence text) {
# textView.setText(text);
# Log.v(TAG, text.toString());
# }
# }
BASIC_TYPES = {
'V': "void",
'Z': "boolean",
'B': "byte",
'S': 'short',
'C': "char",
'I': "int",
'J': "long",
'F': "float",
'D': "double"
}
PKG_PREFIX = "droidbox"
LOG_TAG = "DroidBox"
class JavaType(object):
def __init__(self, smali_type):
self.java_type = ""
self.dim = 0
self.basic = None
self.__parse__(smali_type)
def __parse__(self, smali_type):
self.dim = smali_type.rfind('[') + 1
smali_type = smali_type[self.dim:]
if BASIC_TYPES.has_key(smali_type[0]):
self.java_type = BASIC_TYPES[smali_type[0]]
self.basic = True
elif smali_type[0] == 'L':
self.java_type = smali_type[1:-1].replace('/', '.')
self.basic = False
def get_java_desc(self):
return self.java_type + self.dim * "[]"
class APIMonitor(object):
def __init__(self, method_descs):
self.method_descs = method_descs
self.stub_classes = {}
self.method_map = {}
self.class_map = {}
for m in method_descs:
segs = m.rsplit("->", 1)
if self.stub_classes.has_key(segs[0]):
stub_class = self.stub_classes[segs[0]]
else:
stub_class = StubClass(segs[0])
self.stub_classes[segs[0]] = stub_class
self.class_map[segs[0]] = "L" + PKG_PREFIX + "/" + segs[0][1:]
stub_class.add(segs[1])
i = m.find('(')
self.method_map[m] = "L" + PKG_PREFIX + "/" + m[1:i + 1] + \
segs[0] + m[i + 1:]
# Landroid/widget/TextView;->setText(Ljava/lang/CharSequence;)V
# Ldroidbox/android/widget/TextView;->setText(Landroid/widget/TextView;Ljava/lang/CharSequence;)V"
def get_class_descs(self):
return self.class_map.values()
def __repr__(self):
return "%s" % \
(''.join([repr(c) for c in self.stub_classes.values()]), )
def export(self, foldername):
for c in self.stub_classes.values():
c.export(foldername)
class StubClass(object):
def __init__(self, class_desc):
self.buf = []
segs = class_desc.rsplit('/', 1)
self.class_name = segs[1][:-1]
self.class_desc = class_desc
self.package = PKG_PREFIX + '/' + segs[0][1:]
self.stub_methods = []
def __repr__(self):
return "%s\n%s\n" % (self.class_desc, self.buf)
def add(self, method_short_desc):
self.stub_methods.append(StubMethod(self.class_desc, method_short_desc))
def gen(self):
self.buf = []
self.buf.append("package %s;" % self.package.replace('/', '.'))
self.buf.append("import android.util.Log;")
# self.buf.append("import %s;" % self.class_desc[1:-1])
self.buf.append("public class %s {" % self.class_name)
self.buf.append("private static final String TAG = \"%s\";" % LOG_TAG)
for m in self.stub_methods:
m.gen()
self.buf.extend(m.buf)
self.buf.append("}")
def export(self, foldername):
path = os.path.join(foldername, self.package)
if not os.path.exists(path):
os.makedirs(path)
filename = os.path.join(path, self.class_name + ".java")
f = open(filename, 'w')
self.gen()
f.write('\n'.join(self.buf))
f.close()
#setText(Ljava/lang/CharSequence;)V
class StubMethod(object):
def __init__(self, class_desc, method_short_desc):
self.buf = []
self.class_desc = class_desc
self.method_short_desc = method_short_desc
p1 = self.method_short_desc.find('(')
p2 = self.method_short_desc.find(')')
self.name = self.method_short_desc[:p1]
self.ret = JavaType(self.method_short_desc[p2 + 1:])
self.paras = []
self.__parse_paras(self.method_short_desc[p1 + 1:p2])
def __repr__(self):
return self.method_short_desc
def __parse_paras(self, paras):
self.paras = []
self.paras.append(JavaType(self.class_desc))
index = 0
dim = 0
while index < len(paras):
c = paras[index]
if c == '[':
dim += 1
index += 1
elif BASIC_TYPES.has_key(c):
self.paras.append(JavaType(paras[index - dim:index + 1]))
index += 1
dim = 0
else:
tmp = paras.find(';', index)
self.paras.append(JavaType(paras[index - dim:tmp + 1]))
index = tmp + 1
dim = 0
def gen(self):
self.buf = []
self.buf.append("public static %s %s(%s) {" % \
(self.ret.get_java_desc(), self.name, \
', '.join( \
["%s p%d" % \
(self.paras[i].get_java_desc(), i) for i in range(len(self.paras))])))
if self.ret.get_java_desc() != "void":
self.buf.append("%s ret;" % self.ret.get_java_desc())
self.buf.append("try {")
if self.ret.get_java_desc() == "void":
self.buf.append("p0.%s(%s);" % \
(self.name, \
', '.join(["p%d" % i for i in range(1, len(self.paras))])))
else:
self.buf.append("ret = p0.%s(%s);" % \
(self.name, \
', '.join(["p%d" % i for i in range(1, len(self.paras))])))
self.buf.extend(self.gen_log(self.ret, "ret"))
self.buf.append("Log.v(TAG, \"%s->%s\");" % \
(self.class_desc, self.method_short_desc))
for i in range(1, len(self.paras)):
self.buf.extend(self.gen_log(self.paras[i], 'p' + str(i)))
if self.ret.get_java_desc() != "void":
self.buf.append("return ret;")
self.buf.append("} catch (Exception e) {")
self.buf.append("e.printStackTrace();")
if self.ret.get_java_desc() != "void":
if self.ret.basic:
self.buf.append("return 0;")
else:
self.buf.append("return null;")
self.buf.append("}")
self.buf.append("}")
def gen_log(self, java_type, para_name):
buf = []
if java_type.get_java_desc() == "void":
return buf
if java_type.dim == 0:
if java_type.basic:
buf.append("Log.v(TAG, \"%s:\"+String.valueOf(%s));" % \
(para_name, para_name))
else:
buf.append("Log.v(TAG, \"%s:\"+%s.toString());" % \
(para_name, para_name))
return buf