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#!/usr/bin/env python3
# pylint: disable=C0301,C0116,C0103,R0903
"""
Gather recovery information for Macs.
Copyright (c) 2019, vit9696
macrecovery is a tool that helps to automate recovery interaction. It can be
used to download diagnostics and recovery as well as analyse MLB.
Requires python to run. Run with `-h` argument to see all available arguments.
Upstream: https://github.com/acidanthera/OpenCorePkg/tree/master/Utilities/macrecovery
pylint -> Your code has been rated at -0.08/10 ;(
"""
import os
import sys
import json
import random
import argparse
try:
from urllib.request import Request, urlopen
from urllib.parse import urlparse
except ImportError:
from urllib2 import Request, urlopen
from urlparse import urlparse
SELF_DIR = os.path.dirname(os.path.realpath(__file__))
RECENT_MAC = 'Mac-7BA5B2D9E42DDD94'
MLB_ZERO = '00000000000000000'
MLB_VALID = 'C02749200YGJ803AX'
MLB_PRODUCT = '00000000000J80300'
TYPE_SID = 16
TYPE_K = 64
TYPE_FG = 64
INFO_PRODUCT = 'AP'
INFO_IMAGE_LINK = 'AU'
INFO_IMAGE_HASH = 'AH'
INFO_IMAGE_SESS = 'AT'
INFO_SIGN_LINK = 'CU'
INFO_SIGN_HASH = 'CH'
INFO_SIGN_SESS = 'CT'
INFO_REQURED = [INFO_PRODUCT, INFO_IMAGE_LINK, INFO_IMAGE_HASH, INFO_IMAGE_SESS,
INFO_SIGN_LINK, INFO_SIGN_HASH, INFO_SIGN_SESS]
def run_query(url, headers, post=None, raw=False):
if post is not None:
data = '\n'.join([entry + '=' + post[entry] for entry in post])
if sys.version_info[0] >= 3:
data = data.encode('utf-8')
else:
data = None
req = Request(url=url, headers=headers, data=data)
response = urlopen(req)
if raw:
return response
return dict(response.info()), response.read()
def generate_id(itype, nid=None):
valid_chars = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F']
if nid is None:
return ''.join(random.choice(valid_chars) for i in range(itype))
return nid
def product_mlb(mlb):
return '00000000000' + mlb[11] + mlb[12] + mlb[13] + mlb[14] + '00'
def mlb_from_eeee(eeee):
if len(eeee) != 4:
print('ERROR: Invalid EEEE code length!')
sys.exit(1)
return '00000000000' + eeee + '00'
def get_session(args):
headers = {
'Host': 'osrecovery.apple.com',
'Connection': 'close',
'User-Agent': 'InternetRecovery/1.0',
}
headers, output = run_query('http://osrecovery.apple.com/', headers)
if args.verbose:
print('Session headers:')
for header in headers:
print('{}: {}'.format(header, headers[header]))
for header in headers:
if header.lower() == 'set-cookie':
cookies = headers[header].split('; ')
for cookie in cookies:
if cookie.startswith('session='):
return cookie
raise RuntimeError('No session in headers ' + str(headers))
def get_image_info(session, bid, mlb=MLB_ZERO, diag=False, os_type='default', cid=None):
headers = {
'Host': 'osrecovery.apple.com',
'Connection': 'close',
'User-Agent': 'InternetRecovery/1.0',
'Cookie': session,
'Content-Type': 'text/plain',
}
post = {
'cid': generate_id(TYPE_SID, cid),
'sn': mlb,
'bid': bid,
'k': generate_id(TYPE_K),
'fg': generate_id(TYPE_FG)
}
if diag:
url = 'http://osrecovery.apple.com/InstallationPayload/Diagnostics'
else:
url = 'http://osrecovery.apple.com/InstallationPayload/RecoveryImage'
post['os'] = os_type
headers, output = run_query(url, headers, post)
if sys.version_info[0] >= 3:
output = output.decode('utf-8')
info = {}
for line in output.split('\n'):
try:
key, value = line.split(': ')
info[key] = value
except:
continue
for k in INFO_REQURED:
if k not in info:
raise RuntimeError('Missing key ' + k)
return info
def save_image(url, sess, filename='', directory=''):
purl = urlparse(url)
headers = {
'Host': purl.hostname,
'Connection': 'close',
'User-Agent': 'InternetRecovery/1.0',
'Cookie': '='.join(['AssetToken', sess])
}
if filename == '':
filename = os.path.basename(purl.path)
if filename.find('/') >= 0 or filename == '':
raise RuntimeError('Invalid save path ' + filename)
print('Saving ' + url + ' to ' + filename + '...')
with open(os.path.join(directory, filename), 'wb') as fhandle:
response = run_query(url, headers, raw=True)
total_size = int(response.headers['content-length']) / float(2 ** 20)
# print(total_size)
if total_size < 1:
total_size = response.headers['content-length']
print("Note: The total download size is %s bytes" % total_size)
else:
print("Note: The total download size is %0.2f MB" % total_size)
size = 0
while True:
chunk = response.read(2 ** 20)
if not chunk:
break
fhandle.write(chunk)
size += len(chunk)
print('\r{} MBs downloaded...'.format(size / (2 ** 20)), end='')
sys.stdout.flush()
print('\rDownload complete!' + ' ' * 32)
def action_download(args):
"""
Reference information for queries:
Recovery latest:
cid=3076CE439155BA14
sn=...
bid=Mac-E43C1C25D4880AD6
k=4BE523BB136EB12B1758C70DB43BDD485EBCB6A457854245F9E9FF0587FB790C
os=latest
fg=B2E6AA07DB9088BE5BDB38DB2EA824FDDFB6C3AC5272203B32D89F9D8E3528DC
Recovery default:
cid=4A35CB95FF396EE7
sn=...
bid=Mac-E43C1C25D4880AD6
k=0A385E6FFC3DDD990A8A1F4EC8B98C92CA5E19C9FF1DD26508C54936D8523121
os=default
fg=B2E6AA07DB9088BE5BDB38DB2EA824FDDFB6C3AC5272203B32D89F9D8E3528DC
Diagnostics:
cid=050C59B51497CEC8
sn=...
bid=Mac-E43C1C25D4880AD6
k=37D42A8282FE04A12A7D946304F403E56A2155B9622B385F3EB959A2FBAB8C93
fg=B2E6AA07DB9088BE5BDB38DB2EA824FDDFB6C3AC5272203B32D89F9D8E3528DC
"""
session = get_session(args)
info = get_image_info(session, bid=args.board_id, mlb=args.mlb,
diag=args.diagnostics, os_type=args.os_type)
if args.verbose:
print(info)
print('Downloading ' + info[INFO_PRODUCT] + '...')
dmgname = '' if args.basename == '' else args.basename + '.dmg'
save_image(info[INFO_IMAGE_LINK], info[INFO_IMAGE_SESS], dmgname, args.outdir)
cnkname = '' if args.basename == '' else args.basename + '.chunklist'
save_image(info[INFO_SIGN_LINK], info[INFO_SIGN_SESS], cnkname, args.outdir)
return 0
def action_selfcheck(args):
"""
Sanity check server logic for recovery:
if not valid(bid):
return error()
ppp = get_ppp(sn)
if not valid(ppp):
return latest_recovery(bid = bid) # Returns newest for bid.
if valid(sn):
if os == 'default':
return default_recovery(sn = sn, ppp = ppp) # Returns oldest for sn.
else:
return latest_recovery(sn = sn, ppp = ppp) # Returns newest for sn.
return default_recovery(ppp = ppp) # Returns oldest.
"""
session = get_session(args)
valid_default = get_image_info(session, bid=RECENT_MAC, mlb=MLB_VALID,
diag=False, os_type='default')
valid_latest = get_image_info(session, bid=RECENT_MAC, mlb=MLB_VALID,
diag=False, os_type='latest')
product_default = get_image_info(session, bid=RECENT_MAC, mlb=MLB_PRODUCT,
diag=False, os_type='default')
product_latest = get_image_info(session, bid=RECENT_MAC, mlb=MLB_PRODUCT,
diag=False, os_type='latest')
generic_default = get_image_info(session, bid=RECENT_MAC, mlb=MLB_ZERO,
diag=False, os_type='default')
generic_latest = get_image_info(session, bid=RECENT_MAC, mlb=MLB_ZERO,
diag=False, os_type='latest')
if args.verbose:
print(valid_default)
print(valid_latest)
print(product_default)
print(product_latest)
print(generic_default)
print(generic_latest)
if valid_default[INFO_PRODUCT] == valid_latest[INFO_PRODUCT]:
# Valid MLB must give different default and latest if this is not a too new product.
print('ERROR: Cannot determine any previous product, got {}'.format(valid_default[INFO_PRODUCT]))
return 1
if product_default[INFO_PRODUCT] != product_latest[INFO_PRODUCT]:
# Product-only MLB must give the same value for default and latest.
print('ERROR: Latest and default do not match for product MLB, got {} and {}'.format(
product_default[INFO_PRODUCT], product_latest[INFO_PRODUCT]))
return 1
if generic_default[INFO_PRODUCT] != generic_latest[INFO_PRODUCT]:
# Zero MLB always give the same value for default and latest.
print('ERROR: Generic MLB gives different product, got {} and {}'.format(
generic_default[INFO_PRODUCT], generic_latest[INFO_PRODUCT]))
return 1
if valid_latest[INFO_PRODUCT] != generic_latest[INFO_PRODUCT]:
# Valid MLB must always equal generic MLB.
print('ERROR: Cannot determine unified latest product, got {} and {}'.format(
valid_latest[INFO_PRODUCT], generic_latest[INFO_PRODUCT]))
return 1
if product_default[INFO_PRODUCT] != valid_default[INFO_PRODUCT]:
# Product-only MLB can give the same value with valid default MLB.
# This is not an error for all models, but for our chosen code it is.
print('ERROR: Valid and product MLB give mismatch, got {} and {}'.format(
product_default[INFO_PRODUCT], valid_default[INFO_PRODUCT]))
return 1
print('SUCCESS: Found no discrepancies with MLB validation algorithm!')
return 0
def action_verify(args):
"""
Try to verify MLB serial number.
"""
session = get_session()
generic_latest = get_image_info(session, bid=RECENT_MAC, mlb=MLB_ZERO,
diag=False, os_type='latest')
uvalid_default = get_image_info(session, bid=args.board_id, mlb=args.mlb,
diag=False, os_type='default')
uvalid_latest = get_image_info(session, bid=args.board_id, mlb=args.mlb,
diag=False, os_type='latest')
uproduct_default = get_image_info(session, bid=args.board_id, mlb=product_mlb(args.mlb),
diag=False, os_type='default')
if args.verbose:
print(generic_latest)
print(uvalid_default)
print(uvalid_latest)
print(uproduct_default)
# Verify our MLB number.
if uvalid_default[INFO_PRODUCT] != uvalid_latest[INFO_PRODUCT]:
if uvalid_latest[INFO_PRODUCT] == generic_latest[INFO_PRODUCT]:
print('SUCCESS: {} MLB looks valid and supported!'.format(args.mlb))
else:
print('SUCCESS: {} MLB looks valid, but probably unsupported!'.format(args.mlb))
return 0
print('UNKNOWN: Run selfcheck, check your board-id, or try again later!')
# Here we have matching default and latest products. This can only be true for very
# new models. These models get either latest or special builds.
if uvalid_default[INFO_PRODUCT] == generic_latest[INFO_PRODUCT]:
print('UNKNOWN: {} MLB can be valid if very new!'.format(args.mlb))
return 0
if uproduct_default[INFO_PRODUCT] != uvalid_default[INFO_PRODUCT]:
print('UNKNOWN: {} MLB looks invalid, other models use product {} instead of {}!'.format(
args.mlb, uproduct_default[INFO_PRODUCT], uvalid_default[INFO_PRODUCT]))
return 0
print('UNKNOWN: {} MLB can be valid if very new and using special builds!'.format(args.mlb))
return 0
def action_guess(args):
"""
Attempt to guess which model does this MLB belong.
"""
mlb = args.mlb
anon = mlb.startswith('000')
with open(args.board_db, 'r') as fhandle:
db = json.load(fhandle)
supported = {}
session = get_session(args)
generic_latest = get_image_info(session, bid=RECENT_MAC, mlb=MLB_ZERO,
diag=False, os_type='latest')
for model in db:
try:
if anon:
# For anonymous lookup check when given model does not match latest.
model_latest = get_image_info(session, bid=model, mlb=MLB_ZERO,
diag=False, os_type='latest')
if model_latest[INFO_PRODUCT] != generic_latest[INFO_PRODUCT]:
if db[model] == 'current':
print('WARN: Skipped {} due to using latest product {} instead of {}'.format(
model, model_latest[INFO_PRODUCT], generic_latest[INFO_PRODUCT]))
continue
user_default = get_image_info(session, bid=model, mlb=mlb,
diag=False, os_type='default')
if user_default[INFO_PRODUCT] != generic_latest[INFO_PRODUCT]:
supported[model] = [db[model], user_default[INFO_PRODUCT], generic_latest[INFO_PRODUCT]]
else:
# For normal lookup check when given model has mismatching normal and latest.
user_latest = get_image_info(session, bid=model, mlb=mlb,
diag=False, os_type='latest')
user_default = get_image_info(session, bid=model, mlb=mlb,
diag=False, os_type='default')
if user_latest[INFO_PRODUCT] != user_default[INFO_PRODUCT]:
supported[model] = [db[model], user_default[INFO_PRODUCT], user_latest[INFO_PRODUCT]]
except Exception as e:
print('WARN: Failed to check {}, exception: {}'.format(model, str(e)))
if len(supported) > 0:
print('SUCCESS: MLB {} looks supported for:'.format(mlb))
for model in supported:
print('- {}, up to {}, default: {}, latest: {}'.format(model, supported[model][0],
supported[model][1], supported[model][2]))
return 0
print('UNKNOWN: Failed to determine supported models for MLB {}!'.format(mlb))
# https://stackoverflow.com/questions/2280334/shortest-way-of-creating-an-object-with-arbitrary-attributes-in-python
class gdata:
"""
A string to make pylint happy ;)
"""
def __init__(self, **kwargs):
self.__dict__.update(kwargs)
def main():
parser = argparse.ArgumentParser(description='Gather recovery information for Macs')
parser.add_argument('--action', choices=['download', 'selfcheck', 'verify', 'guess'], default='',
help='Action to perform: "download" - performs recovery downloading,'
' "selfcheck" checks whether MLB serial validation is possible, "verify" performs'
' MLB serial verification, "guess" tries to find suitable mac model for MLB.')
parser.add_argument('-o', '--outdir', type=str, default=os.getcwd(),
help='customise output directory for downloading, defaults to current directory')
parser.add_argument('-n', '--basename', type=str, default='',
help='customise base name for downloading, defaults to remote name')
parser.add_argument('-b', '--board-id', type=str, default=RECENT_MAC,
help='use specified board identifier for downloading, defaults to ' + RECENT_MAC)
parser.add_argument('-m', '--mlb', type=str, default=MLB_ZERO,
help='use specified logic board serial for downloading, defaults to ' + MLB_ZERO)
parser.add_argument('-e', '--code', type=str, default='',
help='generate product logic board serial with specified product EEEE code')
parser.add_argument('-os', '--os-type', type=str, default='default', choices=['default', 'latest'],
help='use specified os type, defaults to default ' + MLB_ZERO)
parser.add_argument('-diag', '--diagnostics', action='store_true', help='download diagnostics image')
parser.add_argument('-s', '--shortname', type=str, default='',
help='available options: high-sierra, mojave, catalina, big-sur, monterey')
parser.add_argument('-v', '--verbose', action='store_true', help='print debug information')
parser.add_argument('-db', '--board-db', type=str, default=os.path.join(SELF_DIR, 'boards.json'),
help='use custom board list for checking, defaults to boards.json')
args = parser.parse_args()
if args.code != '':
args.mlb = mlb_from_eeee(args.code)
if len(args.mlb) != 17:
print('ERROR: Cannot use MLBs in non 17 character format!')
sys.exit(1)
if args.action == 'download':
return action_download(args)
if args.action == 'selfcheck':
return action_selfcheck(args)
if args.action == 'verify':
return action_verify(args)
if args.action == 'guess':
return action_guess(args)
# No action specified, so present a download menu instead
# https://github.com/acidanthera/OpenCorePkg/blob/master/Utilities/macrecovery/boards.json
products = [
{"name": "High Sierra (10.13)", "b": "Mac-7BA5B2D9E42DDD94", "m": "00000000000J80300", "short": "high-sierra"},
{"name": "Mojave (10.14)", "b": "Mac-7BA5B2DFE22DDD8C", "m": "00000000000KXPG00", "short": "mojave"},
{"name": "Catalina (10.15)", "b": "Mac-00BE6ED71E35EB86", "m": "00000000000000000", "short": "catalina"},
{"name": "Big Sur (11.6) - RECOMMENDED", "b": "Mac-2BD1B31983FE1663", "m": "00000000000000000", "short": "big-sur"},
{"name": "Monterey (latest)", "b": "Mac-7BA5B2D9E42DDD94", "m": "00000000000000000", "os_type": "latest", "short": "monterey"}
]
for index, product in enumerate(products):
name = product["name"]
print('%s. %12s' % (index + 1, name))
# test locally using args.shortname = 'mojave'
if not args.shortname or args.shortname == '':
answer = input('\nChoose a product to download (1-%s): ' % len(products))
try:
index = int(answer) - 1
if index < 0:
raise ValueError
except (ValueError, IndexError):
pass
else:
index = 0
for product in products:
if args.shortname == product['short']:
break
else:
index = index+1
# action
product = products[index]
print(product['name'])
try:
os_type = product["os_type"]
except:
os_type = "default"
args = gdata(mlb = product["m"], board_id = product["b"], diagnostics =
False, os_type = os_type, verbose=False, basename="", outdir=".")
action_download(args)
if __name__ == '__main__':
sys.exit(main())