mCaptcha-cache/tests/bucket.py

#!/bin/env /usr/bin/python3
# # Copyright (C) 2021  Aravinth Manivannan <realaravinth@batsense.net>
# 
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
# 
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.
from asyncio import sleep
import sys
import json

from mcaptcha import register
import utils

r = utils.connect()
utils.ping(r)

COMMANDS = {
"COUNT" : "MCAPTCHA_CACHE.ADD_VISITOR",
"GET" : "MCAPTCHA_CACHE.GET",
}

def incr(key):
    data = r.execute_command(COMMANDS["COUNT"], key)
    return json.loads(data)

def get_count(key):
    try:
        count = r.execute_command(COMMANDS["GET"], key)
        return int(count)
    except:
        return 0

def assert_count(expect, key):
    count = get_count(key)
    assert count == expect

async def incr_one_works():
    try:
        key = "incr_one"
        register(key)
        initial_count = get_count(key)
        # incriment
        incr(key)
        assert_count(initial_count + 1, key)
        # wait till expiry
        await sleep(5 + 2)
        assert_count(initial_count, key)
        print("[*] Incr one works")
    except Exception as e:
        raise e


async def race_works():
    key = "race_works"
    try:
        register(key)
        initial_count = get_count(key)
        race_num = 200
        for _ in range(race_num):
            incr(key)
        assert_count(initial_count + race_num, key)
        # wait till expiry
        await sleep(5 + 2)
        assert_count(initial_count, key)
        print("[*] Race works")
    except Exception as e:
        raise e


async def difficulty_works():
    key = "difficulty_works"
    try:
        register(key)
        for _ in range(51):
            incr(key)

        data = incr(key)
        assert data["difficulty_factor"] == 50
        
        for _ in range(501):
            incr(key)
        data = incr(key)
        assert data["difficulty_factor"] == 500

        await sleep(5 + 2)
        data = incr(key)
        assert data["difficulty_factor"] == 50

        print("[*] Difficulty factor works")
    except Exception as e:
        raise e