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mirror of https://gitlab.com/fdroid/fdroidserver.git synced 2024-11-18 20:50:10 +01:00

convert apkcache from pickle to JSON

pickle can serialize executable code, while JSON is only ever pure data.
The APK cache is only ever pure data, so no need for the security risks of
pickle.  For example, if some malicious thing gets write access on the
`fdroid update` machine, it can write out a custom tmp/apkcache which would
then be executed.  That is not possible with JSON.

This does just ignore any existing cache and rebuilds from scratch. That is
so we don't need to maintain pickle anywhere, and to ensure there are no
glitches from a conversion from pickle to JSON.

closes #163
This commit is contained in:
Hans-Christoph Steiner 2018-09-03 18:07:40 +02:00
parent 74776e026f
commit 3011953d0e
6 changed files with 97 additions and 46 deletions

View File

@ -533,7 +533,7 @@ def make_v0(apps, apks, repodir, repodict, requestsdict, fdroid_signing_key_fing
old_permissions = set()
sorted_permissions = sorted(apk['uses-permission'])
for perm in sorted_permissions:
perm_name = perm.name
perm_name = perm[0]
if perm_name.startswith("android.permission."):
perm_name = perm_name[19:]
old_permissions.add(perm_name)
@ -541,15 +541,15 @@ def make_v0(apps, apks, repodir, repodict, requestsdict, fdroid_signing_key_fing
for permission in sorted_permissions:
permel = doc.createElement('uses-permission')
permel.setAttribute('name', permission.name)
if permission.maxSdkVersion is not None:
permel.setAttribute('maxSdkVersion', '%d' % permission.maxSdkVersion)
permel.setAttribute('name', permission[0])
if permission[1] is not None:
permel.setAttribute('maxSdkVersion', '%d' % permission[1])
apkel.appendChild(permel)
for permission_sdk_23 in sorted(apk['uses-permission-sdk-23']):
permel = doc.createElement('uses-permission-sdk-23')
permel.setAttribute('name', permission_sdk_23.name)
if permission_sdk_23.maxSdkVersion is not None:
permel.setAttribute('maxSdkVersion', '%d' % permission_sdk_23.maxSdkVersion)
permel.setAttribute('name', permission_sdk_23[0])
if permission_sdk_23[1] is not None:
permel.setAttribute('maxSdkVersion', '%d' % permission_sdk_23[1])
apkel.appendChild(permel)
if 'nativecode' in apk:
addElement('nativecode', ','.join(sorted(apk['nativecode'])), doc, apkel)

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@ -27,7 +27,7 @@ import re
import socket
import zipfile
import hashlib
import pickle # nosec TODO
import json
import time
import copy
from datetime import datetime
@ -46,7 +46,7 @@ from . import metadata
from .common import SdkToolsPopen
from .exception import BuildException, FDroidException
METADATA_VERSION = 19
METADATA_VERSION = 20
# less than the valid range of versionCode, i.e. Java's Integer.MIN_VALUE
UNSET_VERSION_CODE = -0x100000000
@ -56,8 +56,7 @@ APK_VERCODE_PAT = re.compile(".*versionCode='([0-9]*)'.*")
APK_VERNAME_PAT = re.compile(".*versionName='([^']*)'.*")
APK_LABEL_ICON_PAT = re.compile(r".*\s+label='(.*)'\s+icon='(.*?)'")
APK_SDK_VERSION_PAT = re.compile(".*'([0-9]*)'.*")
APK_PERMISSION_PAT = \
re.compile(".*(name='(?P<name>.*?)')(.*maxSdkVersion='(?P<maxSdkVersion>.*?)')?.*")
APK_PERMISSION_PAT = re.compile(".*(name='(.*)')(.*maxSdkVersion='(.*)')?.*")
APK_FEATURE_PAT = re.compile(".*name='([^']*)'.*")
screen_densities = ['65534', '640', '480', '320', '240', '160', '120']
@ -438,7 +437,7 @@ def getsig(apkpath):
def get_cache_file():
return os.path.join('tmp', 'apkcache')
return os.path.join('tmp', 'apkcache.json')
def get_cache():
@ -460,27 +459,46 @@ def get_cache():
apkcachefile = get_cache_file()
ada = options.allow_disabled_algorithms or config['allow_disabled_algorithms']
if not options.clean and os.path.exists(apkcachefile):
with open(apkcachefile, 'rb') as cf:
apkcache = pickle.load(cf, encoding='utf-8') # nosec TODO
with open(apkcachefile) as fp:
apkcache = json.load(fp, object_pairs_hook=collections.OrderedDict)
if apkcache.get("METADATA_VERSION") != METADATA_VERSION \
or apkcache.get('allow_disabled_algorithms') != ada:
apkcache = {}
apkcache = collections.OrderedDict()
else:
apkcache = {}
apkcache = collections.OrderedDict()
apkcache["METADATA_VERSION"] = METADATA_VERSION
apkcache['allow_disabled_algorithms'] = ada
for k, v in apkcache.items():
if not isinstance(v, dict):
continue
if 'antiFeatures' in v:
v['antiFeatures'] = set(v['antiFeatures'])
if 'added' in v:
v['added'] = datetime.fromtimestamp(v['added'])
return apkcache
def write_cache(apkcache):
class Encoder(json.JSONEncoder):
def default(self, obj):
if isinstance(obj, set):
return ['SET'] + list(obj)
elif isinstance(obj, datetime):
return obj.timestamp()
return super().default(obj)
apkcachefile = get_cache_file()
cache_path = os.path.dirname(apkcachefile)
if not os.path.exists(cache_path):
os.makedirs(cache_path)
with open(apkcachefile, 'wb') as cf:
pickle.dump(apkcache, cf)
for k, v in apkcache.items():
if isinstance(k, bytes):
print('BYTES: ' + str(k) + ' ' + str(v))
with open(apkcachefile, 'w') as fp:
json.dump(apkcache, fp, cls=Encoder, indent=2)
def get_icon_bytes(apkzip, iconsrc):
@ -948,16 +966,16 @@ def scan_repo_files(apkcache, repodir, knownapks, use_date_from_file=False):
cachechanged = False
repo_files = []
repodir = repodir.encode('utf-8')
repodir = repodir.encode()
for name in os.listdir(repodir):
file_extension = common.get_file_extension(name)
if file_extension == 'apk' or file_extension == 'obb':
continue
filename = os.path.join(repodir, name)
name_utf8 = name.decode('utf-8')
name_utf8 = name.decode()
if filename.endswith(b'_src.tar.gz'):
logging.debug(_('skipping source tarball: {path}')
.format(path=filename.decode('utf-8')))
.format(path=filename.decode()))
continue
if not common.is_repo_file(filename):
continue
@ -968,15 +986,8 @@ def scan_repo_files(apkcache, repodir, knownapks, use_date_from_file=False):
shasum = sha256sum(filename)
usecache = False
if name in apkcache:
repo_file = apkcache[name]
# added time is cached as tuple but used here as datetime instance
if 'added' in repo_file:
a = repo_file['added']
if isinstance(a, datetime):
repo_file['added'] = a
else:
repo_file['added'] = datetime(*a[:6])
if name_utf8 in apkcache:
repo_file = apkcache[name_utf8]
if repo_file.get('hash') == shasum:
logging.debug(_("Reading {apkfilename} from cache")
.format(apkfilename=name_utf8))
@ -1004,10 +1015,10 @@ def scan_repo_files(apkcache, repodir, knownapks, use_date_from_file=False):
repo_file['versionCode'] = int(m.group(2))
srcfilename = name + b'_src.tar.gz'
if os.path.exists(os.path.join(repodir, srcfilename)):
repo_file['srcname'] = srcfilename.decode('utf-8')
repo_file['srcname'] = srcfilename.decode()
repo_file['size'] = stat.st_size
apkcache[name] = repo_file
apkcache[name_utf8] = repo_file
cachechanged = True
if use_date_from_file:

View File

@ -1,7 +1,7 @@
{
"repo": {
"timestamp": 1502845383782,
"version": 19,
"version": 20,
"name": "My First F-Droid Repo Demo",
"icon": "fdroid-icon.png",
"address": "https://MyFirstFDroidRepo.org/fdroid/repo",

View File

@ -1,6 +1,6 @@
<?xml version="1.0" encoding="utf-8"?>
<fdroid>
<repo icon="fdroid-icon.png" name="My First F-Droid Repo Demo" pubkey="308204e1308202c9a003020102020434597643300d06092a864886f70d01010b050030213110300e060355040b1307462d44726f6964310d300b06035504031304736f7661301e170d3136303931333230313930395a170d3434303133303230313930395a30213110300e060355040b1307462d44726f6964310d300b06035504031304736f766130820222300d06092a864886f70d01010105000382020f003082020a028202010086ef94b5aacf2ba4f38c875f4194b44f5644392e3715575d7c92828577e692c352b567172823851c8c72347fbc9d99684cd7ca3e1db3e4cca126382c53f2a5869fb4c19bdec989b2930501af3e758ff40588915fe96b10076ce3346a193a0277d79e83e30fd8657c20e35260dd085aa32eac7c4b85786ffefbf1555cafe2bc928443430cdbba48cfbe701e12ae86e676477932730d4fc7c00af820aef85038a5b4df084cf6470d110dc4c49ea1b749b80b34709d199b3db516b223625c5de4501e861f7d261b3838f8f616aa78831d618d41d25872dc810c9b2087b5a9e146ca95be740316dcdbcb77314e23ab87d4487913b800b1113c0603ea2294188b71d3e49875df097b56f9151211fc6832f9790c5c83d17481f14ad37915fd164f4fd713f6732a15f4245714b84cd665bdbd085660ea33ad7d7095dcc414f09e3903604a40facc2314a115c0045bb50e9df38efb57e1b8e7cc105f340a26eeb46aba0fa6672953eee7f1f92dcb408e561909bbd4bdf4a4948c4d57c467d21aa238c34ba43be050398be963191fa2b49828bc1e4eeed224b40dbe9dc3e570890a71a974a2f4527edb1b07105071755105edcb2af2f269facfb89180903a572a99b46456e80d4a01685a80b233278805f2c876678e731f4ec4f52075aeef6b2b023efbb8a3637ef507c4c37c27e428152ec1817fcba640ad601cb09f72f0fbe2d274a2410203010001a321301f301d0603551d0e04160414c28bf33dd5a9a17338e5b1d1a6edd8c7d141ed0b300d06092a864886f70d01010b0500038202010084e20458b2aafd7fc27146b0986f9324f4260f244920417a77c9bf15e2e2d22d2725bdd8093ec261c3779c3ca03312516506f9410075b90595b41345956d8eb2786fb5994f195611382c2b99dba13381b0100a30bc9e6e47248bf4325e2f6eec9d789216dc7536e753bf1f4be603d9fa2e6f5e192b4eb988b8cdb0bb1e8668a9225426f7d4636479f73ed24ad1d2657c31e63c93d9679b9080171b3bd1bf10a3b92b80bd790fbf62d3644900cd08eae8b9bf9c2567be98dc8cdd2ae19a8d57a3e3e2de899f81f1279f578989e6af906f80c8c2b67651730ee7e568c1af5bcb845b6d685dc55332a9984aeceaea3b7e883447edf1c76b155d95253e39b9710eaa22efa6c81468829702b5dce7126538f3ca70c2f0ad9a5795435fdb1f715f20d60359ef9a9926c7050116e802df651727447848827815f70bd82af3cedd08783156102d2d8ce995c4c43b8e47e91a3e6927f3505a5d395e6bebb84542c570903eeab4382a1c2151f1471c7a06a34dc4d268d8fa72e93bdcd2dccc4302ecac47b9e7e3d8bc9b46d21cd097874a24d529548018dc190ff568c6aa428f0a5eedff1a347730931c74f19277538e49647a4ad7254f4c1ec7d4da12cce9e1fad9607534e66ab40a56b473d9d7e3d563fd03cad2052bad365c5a29f8ae54f09b60dbca3ea768d7767cbe1c133ca08ce725c1c1370f4aab8e5b6e286f52dc0be8d0982b5a" timestamp="1480431575" url="https://MyFirstFDroidRepo.org/fdroid/repo" version="19">
<repo icon="fdroid-icon.png" name="My First F-Droid Repo Demo" pubkey="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" timestamp="1480431575" url="https://MyFirstFDroidRepo.org/fdroid/repo" version="20">
<description>This is a repository of apps to be used with F-Droid. Applications in this repository are either official binaries built by the original application developers, or are binaries built from source by the admin of f-droid.org using the tools on https://gitlab.com/u/fdroid. </description>
<mirror>http://foobarfoobarfoobar.onion/fdroid/repo</mirror>
<mirror>https://foo.bar/fdroid/repo</mirror>

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@ -177,8 +177,8 @@ if which zipalign || ls -1 $ANDROID_HOME/build-tools/*/zipalign; then
test -e repo/index.xml
test -e repo/index.jar
test -e repo/index-v1.jar
test -e tmp/apkcache
! test -z tmp/apkcache
test -e tmp/apkcache.json
! test -z tmp/apkcache.json
test -L urzip.apk
grep -F '<application id=' repo/index.xml > /dev/null
fi
@ -808,8 +808,8 @@ else
test -e repo/index.xml
test -e repo/index.jar
test -e repo/index-v1.jar
test -e tmp/apkcache
! test -z tmp/apkcache
test -e tmp/apkcache.json
! test -z tmp/apkcache.json
export ANDROID_HOME=$STORED_ANDROID_HOME
fi
@ -860,8 +860,8 @@ $fdroid readmeta
test -e repo/index.xml
test -e repo/index.jar
test -e repo/index-v1.jar
test -e tmp/apkcache
! test -z tmp/apkcache
test -e tmp/apkcache.json
! test -z tmp/apkcache.json
grep -F '<application id=' repo/index.xml > /dev/null
@ -890,8 +890,8 @@ $fdroid readmeta
test -e repo/index.xml
test -e repo/index.jar
test -e repo/index-v1.jar
test -e tmp/apkcache
! test -z tmp/apkcache
test -e tmp/apkcache.json
! test -z tmp/apkcache.json
grep -F '<application id=' repo/index.xml > /dev/null
@ -917,8 +917,8 @@ $fdroid readmeta
test -e repo/index.xml
test -e repo/index.jar
test -e repo/index-v1.jar
test -e tmp/apkcache
! test -z tmp/apkcache
test -e tmp/apkcache.json
! test -z tmp/apkcache.json
grep -F '<application id=' repo/index.xml > /dev/null
@ -1009,8 +1009,8 @@ $fdroid readmeta
test -e repo/index.xml
test -e repo/index.jar
test -e repo/index-v1.jar
test -e tmp/apkcache
! test -z tmp/apkcache
test -e tmp/apkcache.json
! test -z tmp/apkcache.json
grep -F '<application id=' repo/index.xml > /dev/null
# now set fake repo_keyalias

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@ -3,6 +3,7 @@
# http://www.drdobbs.com/testing/unit-testing-with-python/240165163
import git
import glob
import inspect
import logging
import optparse
@ -289,6 +290,45 @@ class UpdateTest(unittest.TestCase):
self.assertIsNone(apk.get('obbMainFile'))
self.assertIsNone(apk.get('obbPatchFile'))
def test_apkcache_json(self):
"""test the migration from pickle to json"""
os.chdir(os.path.join(localmodule, 'tests'))
if os.path.basename(os.getcwd()) != 'tests':
raise Exception('This test must be run in the "tests/" subdir')
config = dict()
fdroidserver.common.fill_config_defaults(config)
config['ndk_paths'] = dict()
config['accepted_formats'] = ['json', 'txt', 'yml']
fdroidserver.common.config = config
fdroidserver.update.config = config
fdroidserver.update.options = type('', (), {})()
fdroidserver.update.options.clean = True
fdroidserver.update.options.delete_unknown = True
fdroidserver.update.options.rename_apks = False
fdroidserver.update.options.allow_disabled_algorithms = False
fdroidserver.metadata.read_metadata(xref=True)
knownapks = fdroidserver.common.KnownApks()
apkcache = fdroidserver.update.get_cache()
self.assertEqual(2, len(apkcache))
self.assertEqual(fdroidserver.update.METADATA_VERSION, apkcache["METADATA_VERSION"])
self.assertEqual(fdroidserver.update.options.allow_disabled_algorithms,
apkcache['allow_disabled_algorithms'])
apks, cachechanged = fdroidserver.update.process_apks(apkcache, 'repo', knownapks, False)
fdroidserver.update.write_cache(apkcache)
fdroidserver.update.options.clean = False
read_from_json = fdroidserver.update.get_cache()
self.assertEqual(16, len(read_from_json))
for f in glob.glob('repo/*.apk'):
self.assertTrue(os.path.basename(f) in read_from_json)
fdroidserver.update.options.clean = True
reset = fdroidserver.update.get_cache()
self.assertEqual(2, len(reset))
def test_scan_apk(self):
config = dict()
fdroidserver.common.fill_config_defaults(config)