mirror of
https://github.com/rwinkhart/sshyp-labs.git
synced 2026-08-27 20:36:31 -04:00
93 lines
4.5 KiB
Python
Executable File
93 lines
4.5 KiB
Python
Executable File
#!/usr/bin/env python3
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from base64 import b32decode
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from os import environ, listdir, path, uname
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from pathlib import Path
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from sshync import get_profile
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from sshyp import decrypt, shm_gen, whitelist_verify
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from subprocess import PIPE, Popen, run
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from sys import argv, exit as s_exit
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from time import sleep, strftime, time
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def totp(_secret, _algo, _digits, _period): # uses provided information to generate a standard totp key
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from hmac import new as new_mac
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from struct import pack, unpack
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_secret = b32decode(_secret.upper() + '=' * ((8 - len(_secret)) % 8))
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_counter = pack('>Q', int(time() / _period))
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_mac = new_mac(_secret, _counter, _algo).digest()
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_offset = _mac[-1] & 0x0f
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_binary = unpack('>L', _mac[_offset:_offset + 4])[0] & 0x7fffffff
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return str(_binary)[-_digits:].zfill(_digits)
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def mfa_read_shortcut(): # extracts MFA info from the user-specified sshyp entry
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from shutil import rmtree
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if not Path(f"{directory}{arguments[0]}.gpg").exists():
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print(f"\n\u001b[38;5;9merror: entry ({arguments[0]}) does not exist\u001b[0m\n")
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s_exit(1)
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_shm_folder, _shm_entry = shm_gen()
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if quick_unlock_enabled == 'y':
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decrypt(directory + arguments[0], _shm_folder, _shm_entry, whitelist_verify(port, username_ssh, ip, device_id))
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else:
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decrypt(directory + arguments[0], _shm_folder, _shm_entry, False)
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try:
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_mfa_data = open(f"{path.expanduser('~/.config/sshyp/tmp/')}{_shm_folder}/{_shm_entry}", 'r').readlines()
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_type = _mfa_data[4].split('otpauth://')[1].split('/')[0]
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_secret = _mfa_data[4].split('?secret=')[1].split('&issuer=')[0]
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_algo = _mfa_data[4].split('&algorithm=')[1].split('&digits=')[0]
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_digits = int(_mfa_data[4].split('&digits=')[1].split('&period=')[0])
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_period = int(_mfa_data[4].split('&period=')[1])
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rmtree(f"{path.expanduser('~/.config/sshyp/tmp/')}{_shm_folder}")
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return _type, _secret, _algo, _digits, _period
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except IndexError:
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print(f"\n\u001b[38;5;9merror: entry ({arguments[0]}) does not contain valid mfa data\u001b[0m\n")
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rmtree(f"{path.expanduser('~/.config/sshyp/tmp/')}{_shm_folder}")
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s_exit(1)
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if __name__ == '__main__':
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# argument fetcher
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arguments = argv[1:]
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if len(arguments) < 1 or not arguments[0].startswith('/'):
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print("\nsshyp-mfa extension usage: sshyp </entry name> copy -m\n\nrun 'man sshyp-mfa' for more information\n")
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s_exit(1)
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# user data fetcher
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device_id = listdir(path.expanduser('~/.config/sshyp/devices'))[0]
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quick_unlock_enabled = open(path.expanduser('~/.config/sshyp/sshyp-data')).readlines()[3].rstrip()
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ssh_info = get_profile(path.expanduser('~/.config/sshyp/sshyp.sshync'))
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username_ssh = str(ssh_info[0].rstrip())
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ip = str(ssh_info[1].rstrip())
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port = str(ssh_info[2].rstrip())
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directory = str(ssh_info[3].rstrip())
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# main process: runs functions to generate MFA key, then continuously copies up-to-date MFA key to clipboard
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try:
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mfa_data, copied = mfa_read_shortcut(), None
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print('\nmfa key copied to clipboard\n\nuntil this process is closed, your clipboard will be automatically '
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'updated with the newest mfa key')
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while True:
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if str(int(strftime('%S'))/mfa_data[4]).endswith('.0') or copied is None:
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if copied is None:
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copied = 1
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if mfa_data[0] == 'steam':
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from steam.guard import generate_twofactor_code as steam_totp
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_mfa_key = steam_totp(b32decode(mfa_data[1]))
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else:
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_mfa_key = totp(mfa_data[1], mfa_data[2], mfa_data[3], mfa_data[4])
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if 'WSL_DISTRO_NAME' in environ: # WSL clipboard detection
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run(('powershell.exe', '-c', 'Set-Clipboard', _mfa_key))
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elif 'WAYLAND_DISPLAY' in environ: # Wayland clipboard detection
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run(('wl-copy', _mfa_key))
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elif uname()[0] == 'Haiku': # Haiku clipboard detection
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run(('clipboard', '-c', _mfa_key))
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elif Path("/data/data/com.termux").exists(): # Termux (Android) clipboard detection
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run(('termux-clipboard-set', _mfa_key))
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else: # X11 clipboard detection
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run(('xclip', '-sel', 'c'), stdin=Popen(('echo', '-n', _mfa_key), stdout=PIPE).stdout)
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sleep(1)
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except KeyboardInterrupt:
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print('\n')
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s_exit(0)
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