mirror of
https://github.com/rwinkhart/sshyp.git
synced 2026-08-28 12:56:28 -04:00
RandyTheSilly
d031e3c7ab
Former-commit-id: 2d2e733945ba2748a24ed93f861145cf26ac1f13 Former-commit-id: e3b5add08675438e1a08607d081a9a44f426425e
501 lines
21 KiB
Python
501 lines
21 KiB
Python
from configparser import ConfigParser
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from curses import A_REVERSE, echo, KEY_DOWN, KEY_UP, cbreak, curs_set, endwin, initscr, newwin, noecho, nocbreak
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from curses.textpad import rectangle, Textbox
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from os import environ, listdir, remove
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from os.path import exists, expanduser, isfile
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from pathlib import Path
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from random import randint
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from shutil import get_terminal_size, which
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from sshyp import copy_id_check, string_gen
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from subprocess import PIPE, run
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# PORT START UNAME-IMPORT-STWEAK
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from os import uname
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# PORT END UNAME-IMPORT-STWEAK
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home, stdscr, sshyp_data = expanduser("~"), initscr(), ConfigParser()
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if isfile(f"{home}/.config/sshyp/sshyp.ini"):
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_exists_flag = True
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sshyp_data.read(f"{home}/.config/sshyp/sshyp.ini")
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else:
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_exists_flag = False
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# writes data stored in ConfigParser to the correct config file
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def write_config(_sshyp_data=sshyp_data):
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with open(f"{home}/.config/sshyp/sshyp.ini", 'w') as configfile:
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_sshyp_data.write(configfile)
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# creates a radio selection between the provided options
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def curses_radio(_options, _pretext):
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curs_set(0)
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_selected = 0
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while True:
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stdscr.clear()
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stdscr.addstr(0, 0, _pretext)
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for _i, _option in enumerate(_options):
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_y = _i + 2
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if _i == _selected:
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stdscr.addstr(_y, 0, "[*] " + _option, A_REVERSE)
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else:
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stdscr.addstr(_y, 0, "[ ] " + _option)
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stdscr.refresh()
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_key = stdscr.getch()
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# update _selected based on user input
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if _key == KEY_UP:
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_selected = (_selected - 1) % len(_options)
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elif _key == KEY_DOWN:
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_selected = (_selected + 1) % len(_options)
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elif _key == ord('\n'):
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break
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stdscr.refresh()
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curs_set(1)
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return _selected
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# creates a text-box input
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def curses_text(_pretext):
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stdscr.clear()
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stdscr.addstr(0, 0, _pretext)
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_term_columns = get_terminal_size()[0]
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_editwin = newwin(1, _term_columns - 2, 3, 1)
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rectangle(stdscr, 2, 0, 4, _term_columns - 1)
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stdscr.refresh()
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_box = Textbox(_editwin)
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# let the user edit until ctrl+g/enter is struck
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_box.edit()
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# return resulting contents
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return _box.gather().strip()
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# cleanly exit curses and optionally prints an exit message
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def curses_terminate(_term_message):
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nocbreak()
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echo()
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endwin()
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if _term_message:
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print(_term_message)
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# device+sync type selection
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def install_type():
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_offline_mode = 'false'
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# PORT START TWEAK-DEVTYPE
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_install_type = curses_radio(('client (ssh-synchronized)', 'client (offline)', 'server'),
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'device + sync type configuration')
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# PORT END TWEAK-DEVTYPE
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if _install_type == 2:
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_dev_type = 'server'
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Path(f"{home}/.config/sshyp/deleted").mkdir(mode=0o700, exist_ok=True)
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Path(f"{home}/.config/sshyp/whitelist").mkdir(mode=0o700, exist_ok=True)
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curses_terminate('\nmake sure the ssh service is running and properly configured\n')
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else:
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_dev_type = 'client'
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if _install_type == 1:
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_offline_mode = 'true'
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if not sshyp_data.has_section('CLIENT-GENERAL'):
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sshyp_data.add_section('CLIENT-GENERAL')
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sshyp_data.set('CLIENT-GENERAL', 'offline_mode_enabled', _offline_mode)
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if not sshyp_data.has_section('GENERAL'):
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sshyp_data.add_section('GENERAL')
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sshyp_data.set('GENERAL', 'device_type', _dev_type)
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write_config()
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return _dev_type, _offline_mode
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# gpg configuration
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def gpg_config():
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# gpg key selection
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_uid_list = [_item for _item in run(('gpg', '-k', '--with-colons'),
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stdout=PIPE, text=True).stdout.splitlines() if _item.startswith('uid')]
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_named_uid_list = []
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for _uid in _uid_list:
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_named_uid_list.append(_uid.split(':')[9])
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_named_uid_list.append('auto-generate')
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_gpg_id_sel = curses_radio(_named_uid_list, 'gpg key selection')
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if _gpg_id_sel == len(_named_uid_list) - 1:
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if not isfile(f"{home}/.config/sshyp/gpg-gen"):
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open(f"{home}/.config/sshyp/gpg-gen", 'w').writelines([
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'Key-Type: 1\n', 'Key-Length: 4096\n', 'Key-Usage: sign encrypt\n', 'Name-Real: sshyp\n',
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'Name-Comment: gpg-sshyp\n', 'Name-Email: github.com/rwinkhart/sshyp\n',
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'Expire-Date: 0'])
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run(('gpg', '-q', '--batch', '--generate-key', f"{home}/.config/sshyp/gpg-gen"))
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remove(f"{home}/.config/sshyp/gpg-gen")
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_gpg_id = run(('gpg', '-k', '--with-colons'), stdout=PIPE, text=True).stdout.splitlines()[-1].split(':')[9]
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else:
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_gpg_id = _named_uid_list[_gpg_id_sel]
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# lock file generation
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if isfile(f"{home}/.config/sshyp/lock.gpg"):
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remove(f"{home}/.config/sshyp/lock.gpg")
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open(f"{home}/.config/sshyp/lock", 'w')
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run(('gpg', '-qr', _gpg_id, '-e', f"{home}/.config/sshyp/lock"))
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remove(f"{home}/.config/sshyp/lock")
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if not sshyp_data.has_section('CLIENT-GENERAL'):
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sshyp_data.add_section('CLIENT-GENERAL')
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sshyp_data.set('CLIENT-GENERAL', 'gpg_id', _gpg_id)
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write_config()
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# text editor configuration
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def editor_config(_env_mode):
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if _env_mode:
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# set default text editor to value of EDITOR environment variable, otherwise default to nano
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if 'EDITOR' in environ:
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_editor = environ['EDITOR']
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else:
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_editor = 'nano'
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else:
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_editor = curses_text('enter the name of your preferred text editor:\n\n\n\n\n'
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'(ctrl+g/enter to confirm)\n\nexample input: vim')
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if not sshyp_data.has_section('CLIENT-GENERAL'):
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sshyp_data.add_section('CLIENT-GENERAL')
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sshyp_data.set('CLIENT-GENERAL', 'text_editor', _editor)
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write_config()
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# ssh+sshync configuration
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def ssh_config():
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# private key selection/generation
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_keys = []
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for _file in listdir(f"{home}/.ssh"):
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if not _file.startswith('.') and _file not in ('known_hosts', 'authorized_keys') \
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and not _file.endswith('.pub') and isfile(f"{home}/.ssh/{_file}"):
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_keys.append(f"{home}/.ssh/{_file}")
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_keys.extend(['auto-generate', 'other (type the location)'])
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_key_selected_num = curses_radio(_keys, 'which private ssh key would you like to use for sshyp?')
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_gen_index = len(_keys)-2
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if _key_selected_num >= _gen_index:
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_ssh_key = expanduser(curses_text('enter the location for your private ssh key:\n\n\n\n\n(ctrl+g/enter to '
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'confirm)\n\nexample input:\n\n~/.ssh/privkey'))
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if _key_selected_num == _gen_index:
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_passphrase = curses_text('enter your desired ssh keyfile passphrase:\n\n\n\n\n(ctrl+g/enter to confirm)'
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'\n\ntip: you can leave this blank to use the keyfile without a passphrase')
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run(('ssh-keygen', '-q', '-t', 'ed25519', '-N', _passphrase, '-f', _ssh_key))
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else:
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_ssh_key = _keys[_key_selected_num]
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# ssh+sshync configuration
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_uiport = curses_text('enter the username, ip, and ssh port of your sshyp server:\n\n\n\n\n(ctrl+g/enter to '
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'confirm)\n\nexample inputs:\n\n ipv4: user@10.10.10.10:22\n ipv6: user@[2000:2000:2000:2000'
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':2000:2000:2000:2000]:22\n domain: user@mydomain.com:22')
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_uiport_split = _uiport.split('@')
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_username_ssh = _uiport_split[0]
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_iport = _uiport_split[1].lstrip('[').replace(']', '').rsplit(':', 1)
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if not sshyp_data.has_section('SSHYNC'):
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sshyp_data.add_section('SSHYNC')
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sshyp_data.set('SSHYNC', 'user', _username_ssh)
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sshyp_data.set('SSHYNC', 'ip', _iport[0])
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sshyp_data.set('SSHYNC', 'port', _iport[1])
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sshyp_data.set('SSHYNC', 'local_dir', f"{home}/.local/share/sshyp/")
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sshyp_data.set('SSHYNC', 'remote_dir', f"/home/{_username_ssh}/.local/share/sshyp/")
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sshyp_data.set('SSHYNC', 'identity_file', _ssh_key)
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write_config()
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return _iport[1], _username_ssh, _iport[0]
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# device id configuration
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def dev_id_config(_ip, _username_ssh, _port):
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_device_id_prefix = curses_text('name this device:\n\n\n\n\n(ctrl+g/enter to confirm)\n\nimportant: this '
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'id must be unique amongst your client devices\n\nthis is used to keep track of '
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'database syncing and quick-unlock permissions\n')
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_device_id_suffix = string_gen('f', randint(24, 48))
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_device_id = _device_id_prefix + '-' + _device_id_suffix
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# remove existing device ids
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for _id in listdir(f"{home}/.config/sshyp/devices"):
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remove(f"{home}/.config/sshyp/devices/{_id}")
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open(f"{home}/.config/sshyp/devices/{_device_id}", 'w')
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# test server connection and attempt to register device id
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copy_id_check(_ip, _username_ssh, _port, _device_id, sshyp_data)
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# quick-unlock configuration
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def quick_unlock_config(_default):
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if _default:
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_enabled = 'false'
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else:
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_quick_unlock_sel = curses_radio(('yes', 'no'), 'enable quick-unlock?\n\n\n\n\nquick-unlock allows you to use '
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'a shorter version of your gpg key passphrase and\nrequires a '
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'constant connection to your sshyp server to authenticate\n\n'
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'WARNING: quick-unlock is only as secure as the environment'
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' you use it in\n\na compromised program on your computer could'
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' scan the process list in the\nbrief period during decryption '
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'to retrieve the necessary information to decrypt your entries')
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if _quick_unlock_sel == 0:
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_enabled = 'true'
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else:
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_enabled = 'false'
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if not sshyp_data.has_section('CLIENT-ONLINE'):
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sshyp_data.add_section('CLIENT-ONLINE')
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sshyp_data.set('CLIENT-ONLINE', 'quick_unlock_enabled', _enabled)
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write_config()
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return _enabled
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# re-encrypt/optimize all entries
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def refresh_encryption():
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_directory = sshyp_data.get('SSHYNC', 'local_dir').rstrip('/')
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# warn the user of potential data loss and prompt to continue
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_proceed = curses_radio(('yes', 'no'), "are you sure you wish to re-encrypt all entries with this key?"
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"\n\n\n\n\nWARNING: proceeding with this action will remove/overwrite"
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" any directories matching the following:"
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f"\n\n{home}/.local/share/sshyp.old\n{home}/.local/share/sshyp.new\n\n")
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if _proceed != 0:
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return 3
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# set new gpg key
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gpg_config()
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from os import walk
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from os.path import isdir
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from shutil import move, rmtree
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from sshyp import decrypt, encrypt, optimized_edit
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# remove existing conflicts
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for _extension in ('.new', '.old'):
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if exists(f"{_directory}{_extension}"):
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rmtree(f"{_directory}{_extension}")
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# decrypt, optimize, and re-encrypt each entry with the newly selected key
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if isdir(_directory):
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curses_terminate('\noptimizing and re-encrypting entries... please wait - do not terminate this process')
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for _root, _dirs, _files in sorted(walk(_directory, topdown=True)):
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for _filename in _files:
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Path(_root.replace(_directory, _directory + '.new', 1)).mkdir(0o700, parents=True, exist_ok=True)
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_new_lines = optimized_edit(decrypt(f"{_root}/{_filename[:-4]}"), None, -1)
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encrypt(_new_lines, f"{_root.replace(_directory, _directory + '.new', 1)}/{_filename[:-4]}",
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sshyp_data.get('CLIENT-GENERAL', 'gpg_id'))
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# create a backup of the original version and activate the new version
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move(_directory, _directory + '.old')
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move(_directory + '.new', _directory)
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return 1
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else:
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return 2
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# PORT START WHITELIST-SERVER
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# takes input from the user to set up quick-unlock pin
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def whitelist_setup():
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_gpg_password_temp = str(curses_text('full gpg passphrase:\n\n\n\n\n(ctrl+g/enter to confirm)'))
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_half_length = int(len(_gpg_password_temp)/2)
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try:
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_short_password_length = int(curses_text(f"quick unlock pin length ({_half_length}):\n\n\n\n\n(ctrl+g/enter "
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"to confirm)\n\npin must be half the length of the gpg passphrase "
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"or less\n\ncannot be a negative number"))
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if not 0 <= _short_password_length <= _half_length:
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_short_password_length = _half_length
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except ValueError:
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_short_password_length = _half_length
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_i, _quick_unlock_password, _quick_unlock_password_excluded = 0, '', ''
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for _char in _gpg_password_temp:
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if _i % 2 == 1 and _i < _short_password_length*2:
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_quick_unlock_password += _char
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else:
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_quick_unlock_password_excluded += _char
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_i += 1
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# create assembly key
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open(f"{home}/.config/sshyp/gpg-gen", 'w').writelines([
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'Key-Type: 1\n', 'Key-Length: 4096\n', 'Key-Usage: sign encrypt\n', 'Name-Real: sshyp\n',
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'Name-Comment: gpg-sshyp-whitelist\n', 'Name-Email: github.com/rwinkhart/sshyp\n', 'Expire-Date: 0'])
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run(('gpg', '-q', '--pinentry-mode', 'loopback', '--batch', '--generate-key', '--passphrase',
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_quick_unlock_password, f"{home}/.config/sshyp/gpg-gen"))
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remove(f"{home}/.config/sshyp/gpg-gen")
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_gpg_id = run(('gpg', '-k', '--with-colons'), stdout=PIPE, text=True).stdout.splitlines()[-1].split(':')[9]
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# encrypt excluded with the assembly key
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from sshyp import encrypt
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encrypt(_quick_unlock_password_excluded, f"{home}/.config/sshyp/excluded", _gpg_id)
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curses_radio(['okay, I have it memorized'], f"your quick-unlock pin: {_quick_unlock_password}")
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# adds or removes quick-unlock whitelisted device ids
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def whitelist_manage(_action):
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_whitelisted_ids = listdir(f"{home}/.config/sshyp/whitelist")
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_device_ids = listdir(f"{home}/.config/sshyp/devices")
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# a value of True indicates adding
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if _action:
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_unwhitelisted_ids = []
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for _id in _device_ids:
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if _id not in _whitelisted_ids:
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_unwhitelisted_ids.append(_id)
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_unwhitelisted_ids.append('cancel')
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_add_id = curses_radio(_unwhitelisted_ids, 'id to add to whitelist:')
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if _add_id == len(_unwhitelisted_ids)-1:
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return
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open(f"{home}/.config/sshyp/whitelist/{_unwhitelisted_ids[_add_id]}", 'w').write('')
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else:
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_whitelisted_choices = _whitelisted_ids + ['cancel']
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_del_id = curses_radio(_whitelisted_choices, 'id to remove from whitelist:')
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if _del_id == len(_whitelisted_choices)-1:
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return
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remove(f"{home}/.config/sshyp/whitelist/{_whitelisted_ids[_del_id]}")
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# prune deleted device ids from whitelist
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for _id in _whitelisted_ids:
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if _id not in _device_ids:
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remove(f"{home}/.config/sshyp/whitelist/{_id}")
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# runs quick-unlock configuration menu
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def whitelist_menu():
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while True:
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_choice = curses_radio(('setup/create pin', 'add to whitelist', 'remove from whitelist',
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'exit/done'), 'quick-unlock/whitelist management')
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if _choice == 0:
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whitelist_setup()
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elif _choice == 1:
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whitelist_manage(True)
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elif _choice == 2:
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whitelist_manage(False)
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else:
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break
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# PORT END WHITELIST-SERVER
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# runs secondary configuration menu
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def global_menu(_device_type, _top_message):
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while True:
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# curses initialization
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noecho()
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cbreak()
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stdscr.keypad(True)
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_options, _choice, _term_message, _exit_signal = ['change device/synchronization types'], 0, False, False
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try:
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if _device_type == 'client':
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_options.extend(['change gpg key', 're-configure ssh(ync)', 'change device name',
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'[OPTIONAL, RECOMMENDED] set custom text editor',
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'[OPTIONAL] enable/disable quick-unlock',
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'[OPTIONAL] re-encrypt/optimize entries',
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'[OPTIONAL, NOT IMPLEMENTED] extensions and updates'])
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else:
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_options.extend(['manage quick-unlock/whitelist'])
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_options.extend(['exit/done'])
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_choice += curses_radio(_options, _top_message)
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if _choice == 0:
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_dev_sync_types = install_type()
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# if not running in server or offline mode and a sshync config has not been made
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if _dev_sync_types[0] != 'server' and _dev_sync_types[1] != 'true' \
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and not sshyp_data.has_section('SSHYNC'):
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_ip, _username_ssh, _port = ssh_config()
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# if no device id is set
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if not listdir(f"{home}/.config/sshyp/devices"):
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dev_id_config(_ip, _username_ssh, _port)
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_device_type = _dev_sync_types[0]
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elif _choice == 1:
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if _device_type == 'client':
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gpg_config()
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else:
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whitelist_menu()
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elif _choice == 2:
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if _device_type == 'client':
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ssh_config()
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else:
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_exit_signal = True
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elif _choice == 3:
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if not sshyp_data.has_section('SSHYNC'):
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ssh_config()
|
|
dev_id_config(sshyp_data.get('SSHYNC', 'ip'), sshyp_data.get('SSHYNC', 'user'),
|
|
sshyp_data.get('SSHYNC', 'port'))
|
|
elif _choice == 4:
|
|
editor_config(False)
|
|
elif _choice == 5:
|
|
_enabled = quick_unlock_config(False)
|
|
if _enabled == 'true':
|
|
_term_message = ('\nquick-unlock has been enabled client-side - in order for this feature to '
|
|
'function,\nyou must first log in to the sshyp server and run:\n\nsshyp tweak\n\n'
|
|
'from there you can create a quick-unlock pin and add this device to the '
|
|
'whitelist\n')
|
|
elif _choice == 6:
|
|
_success = refresh_encryption()
|
|
if _success == 1:
|
|
_term_message = "\na backup of your previous entry directory has been created:\n\n" \
|
|
f"{home}/.local/share/sshyp.old\n"
|
|
elif _success == 2:
|
|
_term_message = '\n\u001b[38;5;9merror: re-encryption failed: ' \
|
|
'entry directory not found\u001b[0m\n'
|
|
elif _choice > 6: # TODO update once displayed options are all implemented
|
|
_exit_signal = True
|
|
curses_terminate(_term_message)
|
|
except KeyboardInterrupt:
|
|
curses_terminate(False)
|
|
_exit_signal = True
|
|
if _exit_signal:
|
|
break
|
|
|
|
|
|
# runs initial configuration wizard
|
|
def initial_setup():
|
|
# required directory creation
|
|
Path(f"{home}/.config/sshyp/devices").mkdir(mode=0o700, parents=True, exist_ok=True)
|
|
Path(f"{home}/.local/share/sshyp").mkdir(mode=0o700, parents=True, exist_ok=True)
|
|
|
|
# removal of old config files
|
|
if _exists_flag:
|
|
sshyp_data.clear()
|
|
|
|
# curses initialization
|
|
noecho()
|
|
cbreak()
|
|
stdscr.keypad(True)
|
|
|
|
# curses menu tree
|
|
try:
|
|
# device+sync type selection
|
|
_dev_sync_types = install_type()
|
|
|
|
if _dev_sync_types[0] == 'client':
|
|
|
|
# gpg configuration
|
|
gpg_config()
|
|
|
|
# text editor configuration (automated)
|
|
editor_config(True)
|
|
|
|
# quick-unlock configuration (disabled by default)
|
|
quick_unlock_config(True)
|
|
|
|
# online (synchronized mode) configuration
|
|
if _dev_sync_types[1] != 'true':
|
|
|
|
# ssh+sshync configuration
|
|
_ip, _username_ssh, _port = ssh_config()
|
|
|
|
# device id configuration
|
|
dev_id_config(_ip, _username_ssh, _port)
|
|
|
|
# cleanly exit curses
|
|
curses_terminate(False)
|
|
|
|
else:
|
|
# cleanly exit curses
|
|
curses_terminate(False)
|
|
|
|
# PORT START CLIPTOOL
|
|
# check for clipboard tool and display warning if missing
|
|
if uname()[0] in ('Linux', 'FreeBSD') and 'WSL_DISTRO_NAME' not in environ \
|
|
and not exists("/data/data/com.termux"):
|
|
_display_server, _clipboard_tool, _clipboard_package = None, None, None
|
|
if 'WAYLAND_DISPLAY' in environ:
|
|
_display_server, _clipboard_tool, _clipboard_package = 'Wayland', 'wl-copy', 'wl-clipboard'
|
|
elif 'DISPLAY' in environ:
|
|
_display_server, _clipboard_tool, _clipboard_package = 'X11', 'xclip', 'xclip'
|
|
if _display_server is not None and which(_clipboard_tool) is None:
|
|
print(f'\n\u001b[38;5;9mwarning: you are using {_display_server} and "{_clipboard_tool}" is not '
|
|
f'present - \ncopying entry fields will not function until '
|
|
f'"{_clipboard_package}" is installed\u001b[0m')
|
|
# PORT END CLIPTOOL
|
|
|
|
global_menu(_dev_sync_types[0], 'additional configuration options:')
|
|
|
|
except KeyboardInterrupt:
|
|
# cleanly exit curses
|
|
curses_terminate(False)
|