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nyaa/rangeban.py

119 lines
3.6 KiB

#!/usr/bin/env python3
from datetime import datetime
from ipaddress import ip_address
import sys
import click
from nyaa import create_app, models
from nyaa.extensions import db
def is_cidr_valid(c):
'''Checks whether a CIDR range string is valid.'''
try:
subnet, mask = c.split('/')
except ValueError:
return False
if int(mask) < 1 or int(mask) > 32:
return False
try:
ip = ip_address(subnet)
except ValueError:
return False
return True
def check_str(b):
'''Returns a checkmark or cross depending on the condition.'''
return '\u2713' if b else '\u2717'
@click.group()
def rangeban():
global app
app = create_app('config')
@rangeban.command()
@click.option('--temp/--no-temp', help='Mark this entry as one that may be '
'cleaned out occasionally.', default=False)
@click.argument('cidrrange')
def ban(temp, cidrrange):
if not is_cidr_valid(cidrrange):
click.secho('{} is not of the format xxx.xxx.xxx.xxx/xx.'
.format(cidrrange), err=True, fg='red')
sys.exit(1)
with app.app_context():
ban = models.RangeBan(cidr_string=cidrrange, temp=datetime.utcnow() if temp else None)
db.session.add(ban)
db.session.commit()
click.echo('Added {} for {}.'.format('temp ban' if temp else 'ban',
cidrrange))
@rangeban.command()
@click.argument('cidrrange')
def unban(cidrrange):
if not is_cidr_valid(cidrrange):
click.secho('{} is not of the format xxx.xxx.xxx.xxx/xx.'
.format(cidrrange), err=True, fg='red')
sys.exit(1)
with app.app_context():
# Dunno why this wants _cidr_string and not cidr_string, probably
# due to this all being a janky piece of shit.
bans = models.RangeBan.query.filter(
models.RangeBan._cidr_string == cidrrange).all()
if len(bans) == 0:
click.echo('Ban not found.')
for b in bans:
click.echo('Unbanned {}'.format(b.cidr_string))
db.session.delete(b)
db.session.commit()
@rangeban.command()
def list():
with app.app_context():
bans = models.RangeBan.query.all()
if len(bans) == 0:
click.echo('No bans.')
else:
click.secho('ID CIDR Range Enabled Temp', bold=True)
for b in bans:
click.echo('{0: <6} {1: <18} {2: <7} {3: <4}'
.format(b.id, b.cidr_string,
check_str(b.enabled),
check_str(b.temp is not None)))
@rangeban.command()
@click.argument('banid', type=int)
@click.argument('status')
def enabled(banid, status):
yeses = ['true', '1', 'yes', '\u2713']
noses = ['false', '0', 'no', '\u2717']
if status.lower() in yeses:
set_to = True
elif status.lower() in noses:
set_to = False
else:
click.secho('Please choose one of {} or {}.'
.format(yeses, noses), err=True, fg='red')
sys.exit(1)
with app.app_context():
ban = models.RangeBan.query.get(banid)
if not ban:
click.secho('No ban with id {} found.'
.format(banid), err=True, fg='red')
sys.exit(1)
ban.enabled = set_to
db.session.add(ban)
db.session.commit()
click.echo('{} ban {} on {}.'.format('Enabled' if set_to else 'Disabled',
banid, ban._cidr_string))
if __name__ == '__main__':
rangeban()