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use androguard primitives to speed up finding debuggable flag

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androguard parses the whole APK before handing the instance back, this uses
the primitives to just find the <application android:debuggable=""> value,
then stop parsing.

#557
This commit is contained in:
Hans-Christoph Steiner 2018-09-18 15:59:49 +02:00
parent a3cecc16a3
commit 11d46072ab
2 changed files with 33 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

24
fdroidserver/common.py
View file

@ -2073,11 +2073,25 @@ def is_apk_and_debuggable_aapt(apkfile):
def is_apk_and_debuggable_androguard(apkfile):
apkobject = _get_androguard_APK(apkfile)
if apkobject.is_valid_APK():
debuggable = apkobject.get_element("application", "debuggable")
if debuggable == 'true':
return True
"""Parse only <application android:debuggable=""> from the APK"""
from androguard.core.bytecodes.axml import AXMLParser, format_value, START_TAG
with ZipFile(apkfile) as apk:
with apk.open('AndroidManifest.xml') as manifest:
axml = AXMLParser(manifest.read())
while axml.is_valid():
_type = next(axml)
if _type == START_TAG and axml.getName() == 'application':
for i in range(0, axml.getAttributeCount()):
name = axml.getAttributeName(i)
if name == 'debuggable':
_type = axml.getAttributeValueType(i)
_data = axml.getAttributeValueData(i)
value = format_value(_type, _data, lambda _: axml.getAttributeValue(i))
if value == 'true':
return True
else:
return False
break
return False

15
tests/common.TestCase
View file

@ -131,7 +131,7 @@ class CommonTest(unittest.TestCase):
fdroidserver.common._add_java_paths_to_config(pathlist, config)
self.assertEqual(config['java_paths']['8'], choice[1:])
def testIsApkDebuggable(self):
def test_is_apk_and_debuggable(self):
config = dict()
fdroidserver.common.fill_config_defaults(config)
fdroidserver.common.config = config
@ -150,6 +150,13 @@ class CommonTest(unittest.TestCase):
debuggable = fdroidserver.common.is_apk_and_debuggable(apkfile)
self.assertTrue(debuggable,
"debuggable APK state was not properly parsed!")
if 'aapt' in config:
self.assertTrue(fdroidserver.common.is_apk_and_debuggable_aapt(apkfile),
'aapt parsing missed <application android:debuggable="">!')
if fdroidserver.common.use_androguard():
self.assertTrue(fdroidserver.common.is_apk_and_debuggable_androguard(apkfile),
'androguard missed <application android:debuggable="">!')
# these are set NOT debuggable
testfiles = []
testfiles.append(os.path.join(self.basedir, 'urzip-release.apk'))
@ -158,6 +165,12 @@ class CommonTest(unittest.TestCase):
debuggable = fdroidserver.common.is_apk_and_debuggable(apkfile)
self.assertFalse(debuggable,
"debuggable APK state was not properly parsed!")
if 'aapt' in config:
self.assertFalse(fdroidserver.common.is_apk_and_debuggable_aapt(apkfile),
'aapt parsing missed <application android:debuggable="">!')
if fdroidserver.common.use_androguard():
self.assertFalse(fdroidserver.common.is_apk_and_debuggable_androguard(apkfile),
'androguard missed <application android:debuggable="">!')
def test_is_valid_package_name(self):
for name in ["cafebabe",