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Mini Shell
Mini Shell
import contextlib
import ctypes
from ctypes import (
c_void_p,
c_uint32,
c_int32,
byref,
)
from ctypes.util import find_library
OS_status = c_int32
class error:
item_not_found = -25300
keychain_denied = -128
sec_auth_failed = -25293
plist_missing = -67030
sec_interaction_not_allowed = -25308
_sec = ctypes.CDLL(find_library('Security'))
_core = ctypes.CDLL(find_library('CoreServices'))
_found = ctypes.CDLL(find_library('Foundation'))
CFDictionaryCreate = _found.CFDictionaryCreate
CFDictionaryCreate.restype = c_void_p
CFDictionaryCreate.argtypes = (
c_void_p,
c_void_p,
c_void_p,
c_int32,
c_void_p,
c_void_p,
)
CFStringCreateWithCString = _found.CFStringCreateWithCString
CFStringCreateWithCString.restype = c_void_p
CFStringCreateWithCString.argtypes = [c_void_p, c_void_p, c_uint32]
CFNumberCreate = _found.CFNumberCreate
CFNumberCreate.restype = c_void_p
CFNumberCreate.argtypes = [c_void_p, c_uint32, ctypes.c_void_p]
SecItemAdd = _sec.SecItemAdd
SecItemAdd.restype = OS_status
SecItemAdd.argtypes = (c_void_p, c_void_p)
SecItemCopyMatching = _sec.SecItemCopyMatching
SecItemCopyMatching.restype = OS_status
SecItemCopyMatching.argtypes = (c_void_p, c_void_p)
SecItemDelete = _sec.SecItemDelete
SecItemDelete.restype = OS_status
SecItemDelete.argtypes = (c_void_p,)
CFDataGetBytePtr = _found.CFDataGetBytePtr
CFDataGetBytePtr.restype = c_void_p
CFDataGetBytePtr.argtypes = (c_void_p,)
CFDataGetLength = _found.CFDataGetLength
CFDataGetLength.restype = c_int32
CFDataGetLength.argtypes = (c_void_p,)
def k_(s):
return c_void_p.in_dll(_sec, s)
def create_cfbool(b):
return CFNumberCreate(None, 0x9, ctypes.byref(c_int32(1 if b else 0))) # int32
def create_cfstr(s):
return CFStringCreateWithCString(
None, s.encode('utf8'), 0x08000100
) # kCFStringEncodingUTF8
def create_query(**kwargs):
return CFDictionaryCreate(
None,
(c_void_p * len(kwargs))(*[k_(k) for k in kwargs.keys()]),
(c_void_p * len(kwargs))(*[
create_cfstr(v) if isinstance(v, str) else v for v in kwargs.values()
]),
len(kwargs),
_found.kCFTypeDictionaryKeyCallBacks,
_found.kCFTypeDictionaryValueCallBacks,
)
def cfstr_to_str(data):
return ctypes.string_at(CFDataGetBytePtr(data), CFDataGetLength(data)).decode(
'utf-8'
)
class Error(Exception):
@classmethod
def raise_for_status(cls, status):
if status == 0:
return
if status == error.item_not_found:
raise NotFound(status, "Item not found")
if status == error.keychain_denied:
raise KeychainDenied(status, "Keychain Access Denied")
if status == error.sec_auth_failed or status == error.plist_missing:
raise SecAuthFailure(
status,
"Security Auth Failure: make sure "
"executable is signed with codesign util",
)
raise cls(status, "Unknown Error")
class NotFound(Error):
pass
class KeychainDenied(Error):
pass
class SecAuthFailure(Error):
pass
def find_generic_password(kc_name, service, username, not_found_ok=False):
q = create_query(
kSecClass=k_('kSecClassGenericPassword'),
kSecMatchLimit=k_('kSecMatchLimitOne'),
kSecAttrService=service,
kSecAttrAccount=username,
kSecReturnData=create_cfbool(True),
)
data = c_void_p()
status = SecItemCopyMatching(q, byref(data))
if status == error.item_not_found and not_found_ok:
return
Error.raise_for_status(status)
return cfstr_to_str(data)
def set_generic_password(name, service, username, password):
with contextlib.suppress(NotFound):
delete_generic_password(name, service, username)
q = create_query(
kSecClass=k_('kSecClassGenericPassword'),
kSecAttrService=service,
kSecAttrAccount=username,
kSecValueData=password,
)
status = SecItemAdd(q, None)
Error.raise_for_status(status)
def delete_generic_password(name, service, username):
q = create_query(
kSecClass=k_('kSecClassGenericPassword'),
kSecAttrService=service,
kSecAttrAccount=username,
)
status = SecItemDelete(q)
Error.raise_for_status(status)
Zerion Mini Shell 1.0