mirror of
https://git.selfprivacy.org/SelfPrivacy/selfprivacy-rest-api.git
synced 2024-08-19 23:23:00 +00:00
Co-authored-by: inexcode <inex.code@selfprivacy.org> Reviewed-on: https://git.selfprivacy.org/SelfPrivacy/selfprivacy-rest-api/pulls/13
190 lines
5.5 KiB
Python
190 lines
5.5 KiB
Python
#!/usr/bin/env python3
|
|
"""Various utility functions"""
|
|
import datetime
|
|
from enum import Enum
|
|
import json
|
|
import os
|
|
import subprocess
|
|
import portalocker
|
|
|
|
|
|
USERDATA_FILE = "/etc/nixos/userdata/userdata.json"
|
|
TOKENS_FILE = "/etc/nixos/userdata/tokens.json"
|
|
JOBS_FILE = "/etc/nixos/userdata/jobs.json"
|
|
DOMAIN_FILE = "/var/domain"
|
|
|
|
|
|
class UserDataFiles(Enum):
|
|
"""Enum for userdata files"""
|
|
|
|
USERDATA = 0
|
|
TOKENS = 1
|
|
JOBS = 2
|
|
|
|
|
|
def get_domain():
|
|
"""Get domain from /var/domain without trailing new line"""
|
|
with open(DOMAIN_FILE, "r", encoding="utf-8") as domain_file:
|
|
domain = domain_file.readline().rstrip()
|
|
return domain
|
|
|
|
|
|
class WriteUserData(object):
|
|
"""Write userdata.json with lock"""
|
|
|
|
def __init__(self, file_type=UserDataFiles.USERDATA):
|
|
if file_type == UserDataFiles.USERDATA:
|
|
self.userdata_file = open(USERDATA_FILE, "r+", encoding="utf-8")
|
|
elif file_type == UserDataFiles.TOKENS:
|
|
self.userdata_file = open(TOKENS_FILE, "r+", encoding="utf-8")
|
|
elif file_type == UserDataFiles.JOBS:
|
|
# Make sure file exists
|
|
if not os.path.exists(JOBS_FILE):
|
|
with open(JOBS_FILE, "w", encoding="utf-8") as jobs_file:
|
|
jobs_file.write("{}")
|
|
self.userdata_file = open(JOBS_FILE, "r+", encoding="utf-8")
|
|
else:
|
|
raise ValueError("Unknown file type")
|
|
portalocker.lock(self.userdata_file, portalocker.LOCK_EX)
|
|
self.data = json.load(self.userdata_file)
|
|
|
|
def __enter__(self):
|
|
return self.data
|
|
|
|
def __exit__(self, exc_type, exc_value, traceback):
|
|
if exc_type is None:
|
|
self.userdata_file.seek(0)
|
|
json.dump(self.data, self.userdata_file, indent=4)
|
|
self.userdata_file.truncate()
|
|
portalocker.unlock(self.userdata_file)
|
|
self.userdata_file.close()
|
|
|
|
|
|
class ReadUserData(object):
|
|
"""Read userdata.json with lock"""
|
|
|
|
def __init__(self, file_type=UserDataFiles.USERDATA):
|
|
if file_type == UserDataFiles.USERDATA:
|
|
self.userdata_file = open(USERDATA_FILE, "r", encoding="utf-8")
|
|
elif file_type == UserDataFiles.TOKENS:
|
|
self.userdata_file = open(TOKENS_FILE, "r", encoding="utf-8")
|
|
elif file_type == UserDataFiles.JOBS:
|
|
# Make sure file exists
|
|
if not os.path.exists(JOBS_FILE):
|
|
with open(JOBS_FILE, "w", encoding="utf-8") as jobs_file:
|
|
jobs_file.write("{}")
|
|
self.userdata_file = open(JOBS_FILE, "r", encoding="utf-8")
|
|
else:
|
|
raise ValueError("Unknown file type")
|
|
portalocker.lock(self.userdata_file, portalocker.LOCK_SH)
|
|
self.data = json.load(self.userdata_file)
|
|
|
|
def __enter__(self) -> dict:
|
|
return self.data
|
|
|
|
def __exit__(self, *args):
|
|
portalocker.unlock(self.userdata_file)
|
|
self.userdata_file.close()
|
|
|
|
|
|
def validate_ssh_public_key(key):
|
|
"""Validate SSH public key. It may be ssh-ed25519 or ssh-rsa."""
|
|
if not key.startswith("ssh-ed25519"):
|
|
if not key.startswith("ssh-rsa"):
|
|
return False
|
|
return True
|
|
|
|
|
|
def is_username_forbidden(username):
|
|
forbidden_prefixes = ["systemd", "nixbld"]
|
|
|
|
forbidden_usernames = [
|
|
"root",
|
|
"messagebus",
|
|
"postfix",
|
|
"polkituser",
|
|
"dovecot2",
|
|
"dovenull",
|
|
"nginx",
|
|
"postgres",
|
|
"prosody",
|
|
"opendkim",
|
|
"rspamd",
|
|
"sshd",
|
|
"selfprivacy-api",
|
|
"restic",
|
|
"redis",
|
|
"pleroma",
|
|
"ocserv",
|
|
"nextcloud",
|
|
"memcached",
|
|
"knot-resolver",
|
|
"gitea",
|
|
"bitwarden_rs",
|
|
"vaultwarden",
|
|
"acme",
|
|
"virtualMail",
|
|
"nobody",
|
|
]
|
|
|
|
for prefix in forbidden_prefixes:
|
|
if username.startswith(prefix):
|
|
return True
|
|
|
|
for forbidden_username in forbidden_usernames:
|
|
if username == forbidden_username:
|
|
return True
|
|
|
|
return False
|
|
|
|
|
|
def parse_date(date_str: str) -> datetime.datetime:
|
|
"""Parse date string which can be in one of these formats:
|
|
- %Y-%m-%dT%H:%M:%S.%fZ
|
|
- %Y-%m-%dT%H:%M:%S.%f
|
|
- %Y-%m-%d %H:%M:%S.%fZ
|
|
- %Y-%m-%d %H:%M:%S.%f
|
|
"""
|
|
try:
|
|
return datetime.datetime.strptime(date_str, "%Y-%m-%d %H:%M:%S.%fZ")
|
|
except ValueError:
|
|
pass
|
|
try:
|
|
return datetime.datetime.strptime(date_str, "%Y-%m-%d %H:%M:%S.%f")
|
|
except ValueError:
|
|
pass
|
|
try:
|
|
return datetime.datetime.strptime(date_str, "%Y-%m-%dT%H:%M:%S.%fZ")
|
|
except ValueError:
|
|
pass
|
|
try:
|
|
return datetime.datetime.strptime(date_str, "%Y-%m-%dT%H:%M:%S.%f")
|
|
except ValueError:
|
|
pass
|
|
raise ValueError("Invalid date string")
|
|
|
|
|
|
def get_dkim_key(domain):
|
|
"""Get DKIM key from /var/dkim/<domain>.selector.txt"""
|
|
if os.path.exists("/var/dkim/" + domain + ".selector.txt"):
|
|
cat_process = subprocess.Popen(
|
|
["cat", "/var/dkim/" + domain + ".selector.txt"], stdout=subprocess.PIPE
|
|
)
|
|
dkim = cat_process.communicate()[0]
|
|
return str(dkim, "utf-8")
|
|
return None
|
|
|
|
|
|
def hash_password(password):
|
|
hashing_command = ["mkpasswd", "-m", "sha-512", password]
|
|
password_hash_process_descriptor = subprocess.Popen(
|
|
hashing_command,
|
|
shell=False,
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.STDOUT,
|
|
)
|
|
hashed_password = password_hash_process_descriptor.communicate()[0]
|
|
hashed_password = hashed_password.decode("ascii")
|
|
hashed_password = hashed_password.rstrip()
|
|
return hashed_password
|