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#!/usr/bin/env python
# Copyright (c) 2015 Ted Mielczarek <ted@mielczarek.org>
# and Michael R. Miller <michaelrmmiller@gmail.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
import argparse
import concurrent.futures
import logging
import os
import re
import shutil
import subprocess
import tempfile
import requests
import urlparse
from PackageSymbolDumper import find_packages, process_packages
OSX_RE = re.compile(r"10\.[0-9]+\.[0-9]+")
def extract_dmg(dmg_path, dest):
logging.info("extract_dmg({}, {})".format(dmg_path, dest))
with tempfile.NamedTemporaryFile() as f:
subprocess.check_call(
["dmg", "extract", dmg_path, f.name], stdout=subprocess.DEVNULL
)
subprocess.check_call(["hfsplus", f.name, "extractall"], cwd=dest)
def get_update_packages():
for i in range(16):
logging.info("get_update_packages: page " + str(i))
url = (
"https://km.support.apple.com/kb/index?page=downloads_browse&sort=recency"
"&facet=all&category=PF6&locale=en_US&offset=%d" % i
)
res = requests.get(url)
if res.status_code != 200:
break
data = res.json()
downloads = data.get("downloads", [])
if not downloads:
break
for d in downloads:
title = d.get("title", "")
if OSX_RE.search(title) and "Combo" not in title:
logging.info("Title: " + title)
if "fileurl" in d:
yield d["fileurl"]
else:
logging.warn("No fileurl in download!")
def fetch_url_to_file(url, download_dir):
filename = os.path.basename(urlparse.urlsplit(url).path)
local_filename = os.path.join(download_dir, filename)
if os.path.isfile(local_filename):
logging.info("{} already exists, skipping".format(local_filename))
return None
r = requests.get(url, stream=True)
res_len = int(r.headers.get("content-length", "0"))
logging.info("Downloading {} -> {} ({} bytes)".format(url, local_filename, res_len))
with open(local_filename, "wb") as f:
for chunk in r.iter_content(chunk_size=1024):
if chunk: # filter out keep-alive new chunks
f.write(chunk)
return local_filename
def fetch_and_extract_dmg(url, tmpdir):
logging.info("fetch_and_extract_dmg: " + url)
filename = fetch_url_to_file(url, tmpdir)
if not filename:
return []
# Extract dmg contents to a subdir
subdir = tempfile.mkdtemp(dir=tmpdir)
extract_dmg(filename, subdir)
packages = list(find_packages(subdir))
logging.info(
"fetch_and_extract_dmg({}): found packages: {}".format(url, str(packages))
)
return packages
def find_update_packages(tmpdir):
logging.info("find_update_packages")
# Only download 2 packages at a time.
with concurrent.futures.ThreadPoolExecutor(max_workers=2) as executor:
jobs = dict(
(executor.submit(fetch_and_extract_dmg, url, tmpdir), url)
for url in get_update_packages()
)
for future in concurrent.futures.as_completed(jobs):
url = jobs[future]
if future.exception() is not None:
logging.error(
"exception downloading {}: {}".format(url, future.exception())
)
else:
for pkg in future.result():
yield pkg
def main():
parser = argparse.ArgumentParser(
description="Download OS X update packages and dump symbols from them"
)
parser.add_argument(
"--dump_syms",
default="dump_syms",
type=str,
help="path to the Breakpad dump_syms executable",
)
parser.add_argument("to", type=str, help="destination path for the symbols")
args = parser.parse_args()
logging.basicConfig(
level=logging.DEBUG,
format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
)
for p in ("requests.packages.urllib3.connectionpool", "urllib3"):
urllib3_logger = logging.getLogger(p)
urllib3_logger.setLevel(logging.ERROR)
try:
tmpdir = tempfile.mkdtemp(suffix=".osxupdates")
def finder():
return find_update_packages(tmpdir)
process_packages(finder, args.to, None, args.dump_syms)
finally:
shutil.rmtree(tmpdir)
if __name__ == "__main__":
main()
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