| # Copyright 2016 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| import os |
| import shutil |
| import tempfile |
| from xml.etree import ElementTree |
| |
| from devil.utils import cmd_helper |
| from pylib import constants |
| |
| DEXDUMP_PATH = os.path.join(constants.ANDROID_SDK_TOOLS, 'dexdump') |
| |
| |
| def Dump(apk_path): |
| """Dumps class and method information from a APK into a dict via dexdump. |
| |
| Args: |
| apk_path: An absolute path to an APK file to dump. |
| Returns: |
| A dict in the following format: |
| { |
| <package_name>: { |
| 'classes': { |
| <class_name>: { |
| 'methods': [<method_1>, <method_2>] |
| } |
| } |
| } |
| } |
| """ |
| # TODO(mikecase): Support multi-dex |
| try: |
| dexfile_dir = tempfile.mkdtemp() |
| # Python zipfile module is unable to unzip APKs. |
| cmd_helper.RunCmd(['unzip', apk_path, 'classes.dex'], cwd=dexfile_dir) |
| dexfile = os.path.join(dexfile_dir, 'classes.dex') |
| output_xml = cmd_helper.GetCmdOutput([DEXDUMP_PATH, '-l', 'xml', dexfile]) |
| return _ParseRootNode(ElementTree.fromstring(output_xml)) |
| finally: |
| shutil.rmtree(dexfile_dir) |
| |
| |
| def _ParseRootNode(root): |
| """Parses the XML output of dexdump. This output is in the following format. |
| |
| This is a subset of the information contained within dexdump output. |
| |
| <api> |
| <package name="foo.bar"> |
| <class name="Class" extends="foo.bar.SuperClass"> |
| <field name="Field"> |
| </field> |
| <constructor name="Method"> |
| <parameter name="Param" type="int"> |
| </parameter> |
| </constructor> |
| <method name="Method"> |
| <parameter name="Param" type="int"> |
| </parameter> |
| </method> |
| </class> |
| </package> |
| </api> |
| """ |
| results = {} |
| for child in root: |
| if child.tag == 'package': |
| package_name = child.attrib['name'] |
| parsed_node = _ParsePackageNode(child) |
| if package_name in results: |
| results[package_name]['classes'].update(parsed_node['classes']) |
| else: |
| results[package_name] = parsed_node |
| return results |
| |
| |
| def _ParsePackageNode(package_node): |
| """Parses a <package> node from the dexdump xml output. |
| |
| Returns: |
| A dict in the format: |
| { |
| 'classes': { |
| <class_1>: { |
| 'methods': [<method_1>, <method_2>] |
| }, |
| <class_2>: { |
| 'methods': [<method_1>, <method_2>] |
| }, |
| } |
| } |
| """ |
| classes = {} |
| for child in package_node: |
| if child.tag == 'class': |
| classes[child.attrib['name']] = _ParseClassNode(child) |
| return {'classes': classes} |
| |
| |
| def _ParseClassNode(class_node): |
| """Parses a <class> node from the dexdump xml output. |
| |
| Returns: |
| A dict in the format: |
| { |
| 'methods': [<method_1>, <method_2>] |
| } |
| """ |
| methods = [] |
| for child in class_node: |
| if child.tag == 'method': |
| methods.append(child.attrib['name']) |
| return {'methods': methods, 'superclass': class_node.attrib['extends']} |