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degourou/setup/libadobe.py
bipinkrish a89c55ce39 Dummy ADE account and Arguments
2023-02-24 00:12:15 +05:30

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Python
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
'''
Helper library with code needed for Adobe stuff.
'''
from uuid import getnode
import sys, os, hashlib, base64
import ssl
import urllib.request as ulib
import urllib.error as uliberror
from datetime import datetime, timedelta
from lxml import etree
try:
from Cryptodome import Random
from Cryptodome.Cipher import AES
from Cryptodome.Hash import SHA
except ImportError:
# Some distros still ship Crypto
from Crypto import Random
from Crypto.Cipher import AES
from Crypto.Hash import SHA
#@@CALIBRE_COMPAT_CODE@@
from setup.customRSA import CustomRSA
from oscrypto import keys
from oscrypto.asymmetric import dump_certificate, dump_private_key
VAR_ACS_SERVER_HTTP = "http://adeactivate.adobe.com/adept"
VAR_ACS_SERVER_HTTPS = "https://adeactivate.adobe.com/adept"
from setup.params import FILE_DEVICEKEY, FILE_DEVICEXML, FILE_ACTIVATIONXML
# Lists of different ADE "versions" we know about
VAR_VER_SUPP_CONFIG_NAMES = [ "ADE 1.7.2", "ADE 2.0.1", "ADE 3.0.1", "ADE 4.0.3", "ADE 4.5.10", "ADE 4.5.11" ]
VAR_VER_SUPP_VERSIONS = [ "ADE WIN 9,0,1131,27", "2.0.1.78765", "3.0.1.91394", "4.0.3.123281",
"com.adobe.adobedigitaleditions.exe v4.5.10.186048",
"com.adobe.adobedigitaleditions.exe v4.5.11.187303" ]
VAR_VER_HOBBES_VERSIONS = [ "9.0.1131.27", "9.3.58046", "10.0.85385", "12.0.123217", "12.5.4.186049", "12.5.4.187298" ]
VAR_VER_OS_IDENTIFIERS = [ "Windows Vista", "Windows Vista", "Windows 8", "Windows 8", "Windows 8", "Windows 8" ]
# "Missing" versions:
# 1.7.1, 2.0, 3.0, 4.0, 4.0.1, 4.0.2, 4.5 to 4.5.9
# 4.5.7.179634
# This is a list of ALL versions we know (and can potentially use if present in a config file).
# Must have the same length / size as the four lists above.
VAR_VER_BUILD_IDS = [ 1131, 78765, 91394, 123281, 186048, 187303 ]
# Build ID 185749 also exists, that's a different (older) variant of 4.5.10.
# This is a list of versions that can be used for new authorizations:
VAR_VER_ALLOWED_BUILD_IDS_AUTHORIZE = [ 78765, 91394, 123281, 187303 ]
# This is a list of versions to be displayed in the version changer.
VAR_VER_ALLOWED_BUILD_IDS_SWITCH_TO = [ 1131, 78765, 91394, 123281, 187303 ]
# Versions >= this one are using HTTPS
# According to changelogs, this is implemented as of ADE 4.0.1 - no idea what build ID that is.
VAR_VER_NEED_HTTPS_BUILD_ID_LIMIT = 123281
# Versions >= this are using a different order for the XML elements in a FulfillmentNotification.
# This doesn't matter for fulfillment at all, but I want to emulate ADE as accurately as possible.
# Implemented as of ADE 4.0.0, no idea what exact build number that is.
VAR_VER_USE_DIFFERENT_NOTIFICATION_XML_ORDER = 123281
# Default build ID to use - ADE 2.0.1
VAR_VER_DEFAULT_BUILD_ID = 78765
def are_ade_version_lists_valid():
# These five lists MUST all have the same amount of elements.
# Otherwise that will cause all kinds of issues.
fail = False
if len(VAR_VER_SUPP_CONFIG_NAMES) != len(VAR_VER_SUPP_VERSIONS):
fail = True
if len(VAR_VER_SUPP_CONFIG_NAMES) != len(VAR_VER_HOBBES_VERSIONS):
fail = True
if len(VAR_VER_SUPP_CONFIG_NAMES) != len(VAR_VER_OS_IDENTIFIERS):
fail = True
if len(VAR_VER_SUPP_CONFIG_NAMES) != len(VAR_VER_BUILD_IDS):
fail = True
if fail:
print("Internal error in ACSM Input: Mismatched version list lenghts.")
print("This should never happen, please open a bug report.")
return False
return True
devkey_bytes = None
def get_devkey_path():
global FILE_DEVICEKEY
return FILE_DEVICEKEY
def get_device_path():
global FILE_DEVICEXML
return FILE_DEVICEXML
def get_activation_xml_path():
global FILE_ACTIVATIONXML
return FILE_ACTIVATIONXML
def update_account_path(folder_path):
# type: (str) -> None
global FILE_DEVICEKEY, FILE_DEVICEXML, FILE_ACTIVATIONXML
FILE_DEVICEKEY = os.path.join(folder_path, "devicesalt")
FILE_DEVICEXML = os.path.join(folder_path, "device.xml")
FILE_ACTIVATIONXML = os.path.join(folder_path, "activation.xml")
def createDeviceKeyFile():
# Original implementation: Device::createDeviceKeyFile()
DEVICE_KEY_SIZE = 16
global devkey_bytes
devkey_bytes = Random.get_random_bytes(DEVICE_KEY_SIZE)
f = open(FILE_DEVICEKEY, "wb")
f.write(devkey_bytes)
f.close()
def int_to_bytes(value, length, big_endian = True):
# Helper function for Python2 only (big endian)
# Python3 uses int.to_bytes()
result = []
for i in range(0, length):
result.append(value >> (i * 8) & 0xff)
if big_endian:
result.reverse()
return result
def get_mac_address():
mac1 = getnode()
mac2 = getnode()
if (mac1 != mac2) or ((mac1 >> 40) % 2):
if sys.version_info[0] >= 3:
return bytes([1, 2, 3, 4, 5, 0])
else:
return bytearray([1, 2, 3, 4, 5, 0])
if sys.version_info[0] >= 3:
return mac1.to_bytes(6, byteorder='big')
return int_to_bytes(mac1, 6)
def makeSerial(random):
# type: (bool) -> str
# Original implementation: std::string Device::makeSerial(bool random)
# It doesn't look like this implementation results in the same fingerprint Adobe is using in ADE.
# Given that Adobe only ever sees the SHA1 hash of this value, that probably doesn't matter.
sha_out = None
if not random:
try:
# Linux
uid = os.getuid()
import pwd
username = pwd.getpwuid(uid).pw_name.encode("utf-8").decode("latin-1")
except:
# Windows
uid = 1000
try:
username = os.getlogin().encode("utf-8").decode("latin-1")
except:
import getpass
username = getpass.getuser().encode("utf-8").decode("latin-1")
mac_address = get_mac_address()
dataToHash = "%d:%s:%02x:%02x:%02x:%02x:%02x:%02x\x00" % (uid, username,
mac_address[0], mac_address[1], mac_address[2],
mac_address[3], mac_address[4], mac_address[5])
sha_out = hashlib.sha1(dataToHash.encode('latin-1')).hexdigest().lower()
else:
import binascii
sha_out = binascii.hexlify(Random.get_random_bytes(20)).lower()
return sha_out
def makeFingerprint(serial):
# type: (str) -> str
# Original implementation: std::string Device::makeFingerprint(const std::string& serial)
# base64(sha1(serial + privateKey))
# Fingerprint must be 20 bytes or less.
global devkey_bytes
if devkey_bytes is None:
f = open(FILE_DEVICEKEY, "rb")
devkey_bytes = f.read()
f.close()
str_to_hash = serial.decode('latin-1') + devkey_bytes.decode('latin-1')
hashed_str = hashlib.sha1(str_to_hash.encode('latin-1')).digest()
b64str = base64.b64encode(hashed_str)
return b64str
############################################## HTTP stuff:
def sendHTTPRequest_DL2FILE(URL, outputfile):
# type: (str, str) -> int
headers = {
"Accept": "*/*",
"User-Agent": "book2png",
# MacOS uses different User-Agent. Good thing we're emulating a Windows client.
}
req = ulib.Request(url=URL, headers=headers)
handler = ulib.urlopen(req)
chunksize = 16 * 1024
ret_code = handler.getcode()
loc = None
try:
loc = req.headers.get("Location")
except:
pass
if loc is not None:
return sendHTTPRequest_DL2FILE(loc)
if ret_code != 200:
return ret_code
with open(outputfile, "wb") as f:
while True:
chunk = handler.read(chunksize)
if not chunk:
break
f.write(chunk)
return 200
def sendHTTPRequest_getSimple(URL):
# type: (str) -> str
headers = {
"Accept": "*/*",
"User-Agent": "book2png",
# MacOS uses different User-Agent. Good thing we're emulating a Windows client.
}
# Ignore SSL:
# It appears as if lots of book distributors have either invalid or expired certs ...
# No idea how Adobe handles that (pinning?), but we can just ignore SSL errors and continue anyways.
# Not the best solution, but it works.
ctx = ssl.create_default_context()
ctx.check_hostname = False
ctx.verify_mode = ssl.CERT_NONE
req = ulib.Request(url=URL, headers=headers)
handler = ulib.urlopen(req, context=ctx)
content = handler.read()
loc = None
try:
loc = req.headers.get("Location")
except:
pass
if loc is not None:
return sendHTTPRequest_getSimple(loc)
return content
def sendPOSTHTTPRequest(URL, document, type, returnRC = False):
# type: (str, bytes, str, bool) -> str
headers = {
"Accept": "*/*",
"User-Agent": "book2png",
# MacOS uses different User-Agent. Good thing we're emulating a Windows client.
"Content-Type": type
}
# Ignore SSL:
# It appears as if lots of book distributors have either invalid or expired certs ...
# No idea how Adobe handles that (pinning?), but we can just ignore SSL errors and continue anyways.
# Not the best solution, but it works.
ctx = ssl.create_default_context()
ctx.check_hostname = False
ctx.verify_mode = ssl.CERT_NONE
# Make sure URL has a protocol
# Some vendors (see issue #22) apparently don't include "http://" in some of their URLs.
# Python returns an error when it encounters such a URL, so just add that prefix if it's not present.
if not "://" in URL:
print("Provider is using malformed URL %s, fixing." % (URL))
URL = "http://" + URL
req = ulib.Request(url=URL, headers=headers, data=document)
try:
handler = ulib.urlopen(req, context=ctx)
except uliberror.HTTPError as err:
# This happens with HTTP 500 and related errors.
print("Post request caused HTTPError %d" % (err.code))
if returnRC:
return err.code, "Post request caused HTTPException"
else:
return None
except uliberror.URLError as err:
# This happens if the hostname cannot be resolved.
print("Post request failed with URLError")
if returnRC:
return 900, "Post request failed with URLError"
else:
return None
ret_code = handler.getcode()
if (ret_code == 204 and returnRC):
return 204, ""
if (ret_code != 200):
print("Post request returned something other than 200 - returned %d" % (ret_code))
content = handler.read()
loc = None
try:
loc = req.headers.get("Location")
except:
pass
if loc is not None:
return sendPOSTHTTPRequest(loc, document, type, returnRC)
if returnRC:
return ret_code, content
return content
def sendHTTPRequest(URL):
# type: (str) -> str
return sendHTTPRequest_getSimple(URL)
def sendRequestDocu(document, URL):
# type: (str, str) -> str
return sendPOSTHTTPRequest(URL, document.encode("utf-8"), "application/vnd.adobe.adept+xml", False)
def sendRequestDocuRC(document, URL):
# type: (str, str) -> str
return sendPOSTHTTPRequest(URL, document.encode("utf-8"), "application/vnd.adobe.adept+xml", True)
######### Encryption and signing ###################
def encrypt_with_device_key(data):
data = bytearray(data)
global devkey_bytes
if devkey_bytes is None:
f = open(FILE_DEVICEKEY, "rb")
devkey_bytes = f.read()
f.close()
remain = 16
if (len(data) % 16):
remain = 16 - (len(data) % 16)
for _ in range(remain):
data.append(remain)
data = bytes(data)
iv = Random.get_random_bytes(16)
cip = AES.new(devkey_bytes, AES.MODE_CBC, iv)
encrypted = cip.encrypt(data)
res = iv + encrypted
return res
def decrypt_with_device_key(data):
if isinstance(data, str):
# Python2
data = bytes(data)
global devkey_bytes
if devkey_bytes is None:
f = open(FILE_DEVICEKEY, "rb")
devkey_bytes = f.read()
f.close()
cip = AES.new(devkey_bytes, AES.MODE_CBC, data[:16])
decrypted = bytearray(cip.decrypt(data[16:]))
# Remove padding
decrypted = decrypted[:-decrypted[-1]]
return decrypted
def addNonce():
# TODO: Update nonce calculation
# Currently, the plugin always uses the current time, and the counter (tmp) is always 0.
# What Adobe does instead is save the current time on program start, then increase tmp
# every time a Nonce is needed.
dt = datetime.utcnow()
sec = (dt - datetime(1970,1,1)).total_seconds()
Ntime = int(sec * 1000)
# Ntime is now milliseconds since 1970
# Unixtime to gregorian timestamp
Ntime += 62167219200000
# Something is fishy with this tmp value. It usually is 0 in ADE, but not always.
# I haven't yet figured out what it means ...
tmp = 0
if sys.version_info[0] >= 3:
final = bytearray(Ntime.to_bytes(8, 'little'))
final.extend(tmp.to_bytes(4, 'little'))
else:
final = bytearray(int_to_bytes(Ntime, 8, False))
final.extend(int_to_bytes(tmp, 4, True))
ret = ""
ret += "<adept:nonce>%s</adept:nonce>" % (base64.b64encode(final).decode("utf-8"))
m10m = dt + timedelta(minutes=10)
m10m_str = m10m.strftime("%Y-%m-%dT%H:%M:%SZ")
ret += "<adept:expiration>%s</adept:expiration>" % (m10m_str)
return ret
def get_cert_from_pkcs12(_pkcs12, _key):
_, cert, _ = keys.parse_pkcs12(_pkcs12, _key)
return dump_certificate(cert, encoding="der")
def sign_node(node):
sha_hash = hash_node(node)
sha_hash = sha_hash.digest()
# print("Hash is " + sha_hash.hex())
global devkey_bytes
global pkcs12
if devkey_bytes is None:
f = open(FILE_DEVICEKEY, "rb")
devkey_bytes = f.read()
f.close()
# Get private key
try:
activationxml = etree.parse(FILE_ACTIVATIONXML)
adNS = lambda tag: '{%s}%s' % ('http://ns.adobe.com/adept', tag)
pkcs12 = activationxml.find("./%s/%s" % (adNS("credentials"), adNS("pkcs12"))).text
except:
return None
my_pkcs12 = base64.b64decode(pkcs12)
my_priv_key, _, _ = keys.parse_pkcs12(my_pkcs12, base64.b64encode(devkey_bytes))
my_priv_key = dump_private_key(my_priv_key, None, "der")
# textbook RSA with that private key
block = CustomRSA.encrypt_for_adobe_signature(my_priv_key, sha_hash)
signature = base64.b64encode(block).decode()
# Debug
# print("sig is %s\n" % block.hex())
return signature
def hash_node(node):
hash_ctx = SHA.new()
hash_node_ctx(node, hash_ctx)
return hash_ctx
ASN_NONE = 0
ASN_NS_TAG = 1 # aka "BEGIN_ELEMENT"
ASN_CHILD = 2 # aka "END_ATTRIBUTES"
ASN_END_TAG = 3 # aka "END_ELEMENT"
ASN_TEXT = 4 # aka "TEXT_NODE"
ASN_ATTRIBUTE = 5 # aka "ATTRIBUTE"
debug = False
def hash_node_ctx(node, hash_ctx):
qtag = etree.QName(node.tag)
if (qtag.localname == "hmac" or qtag.localname == "signature"):
if (qtag.namespace == "http://ns.adobe.com/adept"):
# Adobe HMAC and signature are not hashed
return
else:
print("Warning: Found hmac or signature node in unexpected namespace " + qtag.namespace)
hash_do_append_tag(hash_ctx, ASN_NS_TAG)
if qtag.namespace is None:
hash_do_append_string(hash_ctx, "")
else:
hash_do_append_string(hash_ctx, qtag.namespace)
hash_do_append_string(hash_ctx, qtag.localname)
attrKeys = node.keys()
# Attributes need to be sorted
attrKeys.sort()
# TODO Implement UTF-8 bytewise sorting:
# "Attributes are sorted first by their namespaces and
# then by their names; sorting is done bytewise on UTF-8
# representations."
for attribute in attrKeys:
# Hash all the attributes
hash_do_append_tag(hash_ctx, ASN_ATTRIBUTE)
# Check for element namespace and hash that, if present:
q_attribute = etree.QName(attribute)
# Hash element namespace (usually "")
# If namespace is none, use "". Else, use namespace.
hash_do_append_string(hash_ctx, "" if q_attribute.namespace is None else q_attribute.namespace)
# Hash (local) name and value
hash_do_append_string(hash_ctx, q_attribute.localname)
hash_do_append_string(hash_ctx, node.get(attribute))
hash_do_append_tag(hash_ctx, ASN_CHILD)
if (node.text is not None):
# If there's raw text, hash that.
# This code block used to just be the following:
# hash_do_append_tag(hash_ctx, ASN_TEXT)
# hash_do_append_string(hash_ctx, node.text.strip())
# though that only works with text nodes < 0x7fff.
# While I doubt we'll ever encounter text nodes larger than 32k in
# this application, I want to implement the spec correctly.
# So there's a loop going over the text, hashing 32k chunks.
text = node.text.strip()
textlen = len(text)
if textlen > 0:
done = 0
remaining = 0
while True:
remaining = textlen - done
if remaining > 0x7fff:
#print("Warning: Why are we hashing a node larger than 32k?")
remaining = 0x7fff
hash_do_append_tag(hash_ctx, ASN_TEXT)
hash_do_append_string(hash_ctx, text[done:done+remaining])
done += remaining
if done >= textlen:
break
for child in node:
# If there's child nodes, hash these as well.
hash_node_ctx(child, hash_ctx)
hash_do_append_tag(hash_ctx, ASN_END_TAG)
def hash_do_append_string(hash_ctx, string):
# type: (SHA.SHA1Hash, str) -> None
if sys.version_info[0] >= 3:
str_bytes = bytes(string, encoding="utf-8")
else:
str_bytes = bytes(string)
length = len(str_bytes)
len_upper = int(length / 256)
len_lower = int(length & 0xFF)
hash_do_append_raw_bytes(hash_ctx, [len_upper, len_lower])
hash_do_append_raw_bytes(hash_ctx, str_bytes)
def hash_do_append_tag(hash_ctx, tag):
# type: (SHA.SHA1Hash, int) -> None
if (tag > 5):
return
hash_do_append_raw_bytes(hash_ctx, [tag])
def hash_do_append_raw_bytes(hash_ctx, data):
# type: (SHA.SHA1Hash, bytes) -> None
hash_ctx.update(bytearray(data))
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