Docker-OSX/fetch-macOS.py

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#!/usr/bin/env python3
# encoding: utf-8
#
# https://github.com/munki/macadmin-scripts/blob/master/installinstallmacos.py
#
# Copyright 2017 Greg Neagle.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Thanks to Tim Sutton for ideas, suggestions, and sample code.
#
# Updated in May of 2019 by Dhiru Kholia.
'''installinstallmacos.py
A tool to download the parts for an Install macOS app from Apple's
softwareupdate servers and install a functioning Install macOS app onto an
empty disk image'''
# https://github.com/foxlet/macOS-Simple-KVM/blob/master/tools/FetchMacOS/fetch-macos.py
# is pretty similar.
# Bad hack
import warnings
warnings.filterwarnings("ignore", category=DeprecationWarning)
import os
import gzip
import argparse
import plistlib
import subprocess
from xml.dom import minidom
from xml.parsers.expat import ExpatError
import sys
if sys.version_info[0] < 3:
import urlparse as urlstuff
else:
import urllib.parse as urlstuff
# Quick fix for python 3.9 and above
if sys.version_info[0] == 3 and sys.version_info[1] >= 9:
from types import MethodType
def readPlist(self,filepath):
with open(filepath, 'rb') as f:
p = plistlib._PlistParser(dict)
rootObject = p.parse(f)
return rootObject
# adding the method readPlist() to plistlib
plistlib.readPlist = MethodType(readPlist, plistlib)
# https://github.com/foxlet/macOS-Simple-KVM/blob/master/tools/FetchMacOS/fetch-macos.py (unused)
# https://github.com/munki/macadmin-scripts
catalogs = {
"CustomerSeed": "https://swscan.apple.com/content/catalogs/others/index-10.16customerseed-10.16-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog",
"DeveloperSeed": "https://swscan.apple.com/content/catalogs/others/index-10.16seed-10.16-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog",
"PublicSeed": "https://swscan.apple.com/content/catalogs/others/index-10.16beta-10.16-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog",
"PublicRelease": "https://swscan.apple.com/content/catalogs/others/index-10.16-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog",
"20": "https://swscan.apple.com/content/catalogs/others/index-11-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog"
}
def get_default_catalog():
'''Returns the default softwareupdate catalog for the current OS'''
return catalogs["20"]
# return catalogs["PublicRelease"]
# return catalogs["DeveloperSeed"]
class ReplicationError(Exception):
'''A custom error when replication fails'''
pass
def cmd_exists(cmd):
return subprocess.call("type " + cmd, shell=True,
stdout=subprocess.PIPE, stderr=subprocess.PIPE) == 0
def replicate_url(full_url,
root_dir='/tmp',
show_progress=False,
ignore_cache=False,
attempt_resume=False, installer=False, product_title=""):
'''Downloads a URL and stores it in the same relative path on our
filesystem. Returns a path to the replicated file.'''
# hack
print("[+] Fetching %s" % full_url)
if installer and "BaseSystem.dmg" not in full_url and "Big Sur" not in product_title:
return
if "Big Sur" in product_title and "InstallAssistant.pkg" not in full_url:
return
attempt_resume = True
# path = urllib.parse.urlsplit(full_url)[2]
path = urlstuff.urlsplit(full_url)[2]
relative_url = path.lstrip('/')
relative_url = os.path.normpath(relative_url)
# local_file_path = os.path.join(root_dir, relative_url)
local_file_path = relative_url
# print("Downloading %s..." % full_url)
if cmd_exists('wget'):
if not installer:
download_cmd = ['wget', "-c", "--quiet", "-x", "-nH", full_url]
# this doesn't work as there are multiple metadata files with the same name!
# download_cmd = ['wget', "-c", "--quiet", full_url]
else:
download_cmd = ['wget', "-c", full_url]
else:
if not installer:
download_cmd = ['curl', "--silent", "--show-error", "-o", local_file_path, "--create-dirs", full_url]
else:
local_file_path = os.path.basename(local_file_path)
download_cmd = ['curl', "-o", local_file_path, full_url]
try:
subprocess.check_call(download_cmd)
except subprocess.CalledProcessError as err:
raise ReplicationError(err)
return local_file_path
def parse_server_metadata(filename):
'''Parses a softwareupdate server metadata file, looking for information
of interest.
Returns a dictionary containing title, version, and description.'''
title = ''
vers = ''
try:
md_plist = plistlib.readPlist(filename)
except (OSError, IOError, ExpatError) as err:
print('Error reading %s: %s' % (filename, err), file=sys.stderr)
return {}
vers = md_plist.get('CFBundleShortVersionString', '')
localization = md_plist.get('localization', {})
preferred_localization = (localization.get('English') or
localization.get('en'))
if preferred_localization:
title = preferred_localization.get('title', '')
metadata = {}
metadata['title'] = title
metadata['version'] = vers
"""
{'title': 'macOS Mojave', 'version': '10.14.5'}
{'title': 'macOS Mojave', 'version': '10.14.6'}
"""
return metadata
def get_server_metadata(catalog, product_key, workdir, ignore_cache=False):
'''Replicate ServerMetaData'''
try:
url = catalog['Products'][product_key]['ServerMetadataURL']
try:
smd_path = replicate_url(
url, root_dir=workdir, ignore_cache=ignore_cache)
return smd_path
except ReplicationError as err:
print('Could not replicate %s: %s' % (url, err), file=sys.stderr)
return None
except KeyError:
# print('Malformed catalog.', file=sys.stderr)
return None
def parse_dist(filename):
'''Parses a softwareupdate dist file, returning a dict of info of
interest'''
dist_info = {}
try:
dom = minidom.parse(filename)
except ExpatError:
print('Invalid XML in %s' % filename, file=sys.stderr)
return dist_info
except IOError as err:
print('Error reading %s: %s' % (filename, err), file=sys.stderr)
return dist_info
titles = dom.getElementsByTagName('title')
if titles:
dist_info['title_from_dist'] = titles[0].firstChild.wholeText
auxinfos = dom.getElementsByTagName('auxinfo')
if not auxinfos:
return dist_info
auxinfo = auxinfos[0]
key = None
value = None
children = auxinfo.childNodes
# handle the possibility that keys from auxinfo may be nested
# within a 'dict' element
dict_nodes = [n for n in auxinfo.childNodes
if n.nodeType == n.ELEMENT_NODE and
n.tagName == 'dict']
if dict_nodes:
children = dict_nodes[0].childNodes
for node in children:
if node.nodeType == node.ELEMENT_NODE and node.tagName == 'key':
key = node.firstChild.wholeText
if node.nodeType == node.ELEMENT_NODE and node.tagName == 'string':
value = node.firstChild.wholeText
if key and value:
dist_info[key] = value
key = None
value = None
return dist_info
def download_and_parse_sucatalog(sucatalog, workdir, ignore_cache=False):
'''Downloads and returns a parsed softwareupdate catalog'''
try:
localcatalogpath = replicate_url(
sucatalog, root_dir=workdir, ignore_cache=ignore_cache)
except ReplicationError as err:
print('Could not replicate %s: %s' % (sucatalog, err), file=sys.stderr)
exit(-1)
if os.path.splitext(localcatalogpath)[1] == '.gz':
with gzip.open(localcatalogpath) as the_file:
content = the_file.read()
try:
catalog = plistlib.readPlistFromString(content)
return catalog
except ExpatError as err:
print('Error reading %s: %s' % (localcatalogpath, err), file=sys.stderr)
exit(-1)
else:
try:
catalog = plistlib.readPlist(localcatalogpath)
return catalog
except (OSError, IOError, ExpatError) as err:
print('Error reading %s: %s' % (localcatalogpath, err), file=sys.stderr)
exit(-1)
def find_mac_os_installers(catalog):
'''Return a list of product identifiers for what appear to be macOS
installers'''
mac_os_installer_products = []
if 'Products' in catalog:
for product_key in catalog['Products'].keys():
product = catalog['Products'][product_key]
try:
if product['ExtendedMetaInfo'][
'InstallAssistantPackageIdentifiers']:
mac_os_installer_products.append(product_key)
except KeyError:
continue
return mac_os_installer_products
def os_installer_product_info(catalog, workdir, ignore_cache=False):
'''Returns a dict of info about products that look like macOS installers'''
product_info = {}
installer_products = find_mac_os_installers(catalog)
for product_key in installer_products:
product_info[product_key] = {}
filename = get_server_metadata(catalog, product_key, workdir)
if filename:
product_info[product_key] = parse_server_metadata(filename)
else:
# print('No server metadata for %s' % product_key)
product_info[product_key]['title'] = None
product_info[product_key]['version'] = None
product = catalog['Products'][product_key]
product_info[product_key]['PostDate'] = product['PostDate']
distributions = product['Distributions']
dist_url = distributions.get('English') or distributions.get('en')
try:
dist_path = replicate_url(
dist_url, root_dir=workdir, ignore_cache=ignore_cache)
except ReplicationError as err:
print('Could not replicate %s: %s' % (dist_url, err),
file=sys.stderr)
else:
dist_info = parse_dist(dist_path)
product_info[product_key]['DistributionPath'] = dist_path
product_info[product_key].update(dist_info)
if not product_info[product_key]['title']:
product_info[product_key]['title'] = dist_info.get('title_from_dist')
if not product_info[product_key]['version']:
product_info[product_key]['version'] = dist_info.get('VERSION')
return product_info
def replicate_product(catalog, product_id, workdir, ignore_cache=False, product_title=""):
'''Downloads all the packages for a product'''
product = catalog['Products'][product_id]
for package in product.get('Packages', []):
# TO-DO: Check 'Size' attribute and make sure
# we have enough space on the target
# filesystem before attempting to download
if 'URL' in package:
try:
replicate_url(
package['URL'], root_dir=workdir,
show_progress=True, ignore_cache=ignore_cache,
attempt_resume=(not ignore_cache), installer=True, product_title=product_title)
except ReplicationError as err:
print('Could not replicate %s: %s' % (package['URL'], err), file=sys.stderr)
exit(-1)
if 'MetadataURL' in package:
try:
replicate_url(package['MetadataURL'], root_dir=workdir,
ignore_cache=ignore_cache, installer=True)
except ReplicationError as err:
print('Could not replicate %s: %s' % (package['MetadataURL'], err), file=sys.stderr)
exit(-1)
def find_installer_app(mountpoint):
'''Returns the path to the Install macOS app on the mountpoint'''
applications_dir = os.path.join(mountpoint, 'Applications')
for item in os.listdir(applications_dir):
if item.endswith('.app'):
return os.path.join(applications_dir, item)
return None
def determine_version(version, product_info):
if version:
if version == 'latest':
from distutils.version import StrictVersion
latest_version = StrictVersion('0.0.0')
for index, product_id in enumerate(product_info):
d = product_info[product_id]['version']
if d > latest_version:
latest_version = d
if latest_version == StrictVersion("0.0.0"):
print("Could not find latest version {}")
exit(1)
version = str(latest_version)
for index, product_id in enumerate(product_info):
v = product_info[product_id]['version']
if v == version:
return product_id, product_info[product_id]['title']
print("Could not find version {}. Versions available are:".format(version))
for _, pid in enumerate(product_info):
print("- {}".format(product_info[pid]['version']))
exit(1)
# display a menu of choices (some seed catalogs have multiple installers)
print('%2s %12s %10s %11s %s' % ('#', 'ProductID', 'Version',
'Post Date', 'Title'))
for index, product_id in enumerate(product_info):
print('%2s %12s %10s %11s %s' % (
index + 1,
product_id,
product_info[product_id]['version'],
product_info[product_id]['PostDate'].strftime('%Y-%m-%d'),
product_info[product_id]['title']
))
answer = input(
'\nChoose a product to download (1-%s): ' % len(product_info))
try:
index = int(answer) - 1
if index < 0:
raise ValueError
product_id = list(product_info.keys())[index]
return product_id, product_info[product_id]['title']
except (ValueError, IndexError):
pass
print('Invalid input provided.')
exit(0)
def main():
'''Do the main thing here'''
"""
if os.getuid() != 0:
sys.exit('This command requires root (to install packages), so please '
'run again with sudo or as root.')
"""
parser = argparse.ArgumentParser()
parser.add_argument('--workdir', metavar='path_to_working_dir',
default='.',
help='Path to working directory on a volume with over '
'10G of available space. Defaults to current working '
'directory.')
parser.add_argument('--version', metavar='version',
default=None,
help='The version to download in the format of '
'"$major.$minor.$patch", e.g. "10.15.4". Can '
'be "latest" to download the latest version.')
parser.add_argument('--compress', action='store_true',
help='Output a read-only compressed disk image with '
'the Install macOS app at the root. This is now the '
'default. Use --raw to get a read-write sparse image '
'with the app in the Applications directory.')
parser.add_argument('--raw', action='store_true',
help='Output a read-write sparse image '
'with the app in the Applications directory. Requires '
'less available disk space and is faster.')
parser.add_argument('--ignore-cache', action='store_true',
help='Ignore any previously cached files.')
args = parser.parse_args()
su_catalog_url = get_default_catalog()
if not su_catalog_url:
print('Could not find a default catalog url for this OS version.', file=sys.stderr)
exit(-1)
# download sucatalog and look for products that are for macOS installers
catalog = download_and_parse_sucatalog(
su_catalog_url, args.workdir, ignore_cache=args.ignore_cache)
product_info = os_installer_product_info(
catalog, args.workdir, ignore_cache=args.ignore_cache)
if not product_info:
print('No macOS installer products found in the sucatalog.', file=sys.stderr)
exit(-1)
product_id, product_title = determine_version(args.version, product_info)
print(product_id, product_title)
# download all the packages for the selected product
replicate_product(catalog, product_id, args.workdir, ignore_cache=args.ignore_cache, product_title=product_title)
if __name__ == '__main__':
main()