Files
zshrc/scripts/bin/update-ssh-keys.py
T
2022-10-19 15:29:55 -04:00

135 lines
3.8 KiB
Python
Executable File

#!/usr/bin/env python3
from __future__ import annotations
import importlib
import subprocess
import sys
from pathlib import Path
import textwrap
from urllib.request import Request, urlopen
from color_utils import printc
def import_or_install(module: str, package: str | None = None):
try:
return importlib.import_module(module)
except ModuleNotFoundError:
subprocess.check_call([sys.executable, "-m", "pip", "install", package or module])
return importlib.import_module(module)
# Load github users
GITHUB_USERS = {'hykilpikonna', 'sauricat'}
ADDITIONAL_USERS_PATH = Path.home() / '.ssh' / 'authorized_github_users'
if ADDITIONAL_USERS_PATH.is_file():
GITHUB_USERS.update(set(ADDITIONAL_USERS_PATH.read_text('utf-8').split('\n')))
KEYS_PATH = Path.home() / '.ssh' / 'authorized_keys'
KEYS_PATH.parent.mkdir(parents=True, exist_ok=True)
def fetch_keys(user: str) -> set[str]:
req = Request(f"https://github.com/{user}.keys")
with urlopen(req) as response:
assert response.status == 200
resp = response.read().decode()
return {f"{l} {user}@github" for l in resp.strip().splitlines()}
def fetch_all_keys() -> set[str]:
return {l for u in GITHUB_USERS for l in fetch_keys(u)}
def normalize_key(key: str) -> str:
"""
Remove comment from keys
"""
return ' '.join(key.split(' ')[:2])
def update_ssh_keys():
all_keys = list(fetch_all_keys())
normalized_keys = {normalize_key(k) for k in all_keys}
existing_keys = set(KEYS_PATH.read_text('utf-8').strip().splitlines()) \
if KEYS_PATH.is_file() else set()
for k in existing_keys:
if normalize_key(k) not in normalized_keys:
all_keys.append(k)
len_diff = len(all_keys) - len(existing_keys)
if len_diff > 0:
printc(f"&aSSH Keys Updated! Added {len_diff} keys")
KEYS_PATH.write_text('\n'.join(all_keys))
def list_users():
printc(f'&6> Now you have {len(GITHUB_USERS)} GitHub users in authorized_keys')
printc(f'&6> They are: {", ".join(GITHUB_USERS)}')
def remove_user_keys(user: str):
keys = set(fetch_keys(user))
normalized_keys = {normalize_key(k) for k in keys}
existing_keys = set(KEYS_PATH.read_text('utf-8').strip().splitlines())
updated_keys = set(existing_keys)
for k in existing_keys:
if f'{user}@github' in k or normalize_key(k) in normalized_keys:
updated_keys.remove(k)
len_diff = len(existing_keys) - len(updated_keys)
if len_diff > 0:
printc(f"&aSSH Keys Updated! Removed {len_diff} keys")
KEYS_PATH.write_text('\n'.join(updated_keys))
if __name__ == "__main__":
sys.argv.pop(0)
# No args provided
if len(sys.argv) == 0:
update_ssh_keys()
exit(0)
# Add users
elif sys.argv[0] == 'add':
if len(sys.argv) == 1:
printc('&cUsage: update-ssh-keys.py add {github usernames...}')
exit(4)
usernames = sys.argv[1:]
GITHUB_USERS.update(set(usernames))
ADDITIONAL_USERS_PATH.write_text('\n'.join(GITHUB_USERS))
printc(f'&aAdded {", ".join(usernames)}!')
list_users()
update_ssh_keys()
# Remove users
elif sys.argv[0] == 'remove':
if len(sys.argv) == 1:
printc('&cUsage: update-ssh-keys.py remove {github usernames...}')
exit(4)
usernames = sys.argv[1:]
for u in usernames:
if u in GITHUB_USERS:
GITHUB_USERS.remove(u)
remove_user_keys(u)
ADDITIONAL_USERS_PATH.write_text('\n'.join(GITHUB_USERS))
printc(f'&aRemoved {", ".join(usernames)}!')
list_users()
# List users
elif sys.argv[0] == 'list':
list_users()
# Unknown argument
else:
print(textwrap.dedent("""
Usage: update-ssh-keys.py
- add/remove [github username]
- list
"""))