keychain.py 文件源码

def find_generic_password(kc_name, service, username):
        username = username.encode('utf-8')
        service = service.encode('utf-8')
        with open(kc_name) as keychain:
            length = c_uint32()
            data = c_void_p()
            status = SecKeychainFindGenericPassword(
                keychain,
                len(service),
                service,
                len(username),
                username,
                length,
                data,
                None)

        msg = "Can't fetch password from Keychain"
        NotFound.raise_for_status(status, msg)

        password = ctypes.create_string_buffer(length.value)
        ctypes.memmove(password, data.value, length.value)
        SecKeychainItemFreeContent(None, data)
        return password.raw.decode('utf-8')