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#!/usr/bin/env python3
import math
import secrets
import string
import time
from base64 import b64encode
from logging import LoggerAdapter
from os import path
from typing import Any
leetconv = {
"O": "0",
"l": "1",
"I": "1",
"Z": "2",
"E": "3",
"A": "4",
"S": "5",
"G": "6",
"T": "7",
}
srcdir = path.dirname(path.abspath(__file__))
wordlist = open(f"{srcdir}/media/wordlist").read().replace(" ", "").split("\n")
names = [line for line in wordlist if line != ""]
rickroll = open(f"{srcdir}/media/rickroll.b64").read().replace("\n", "")
messages = [
"Remember: invite Paul to lan party",
"Shopping list: tomatoes and potatoes",
"This is not the flag hehe",
"🤓🤓🤓 Try Harder 🤓🤓🤓",
"Crypto makes me go 🥴🤢🤮",
"RSA, more like (R)eal (S)Bad (A)Crypto",
"🤡 The flag is in another castle! 🤡",
"🧠 solving crypto challenges with a calculator 🧠",
]
gplmsg = "You should have received a copy of the GNU \
General Public License along with this file; if not, \
write to the Free Software Foundation, Inc., 51 Franklin St, \
Fifth Floor, Boston, MA 02110-1301 USA"
def randint(low: int, high: int) -> int:
return low + secrets.randbelow(high - low + 1)
def randbool() -> bool:
return randint(0, 1) == 1
def randstr(n: int) -> str:
alphabet = string.ascii_letters + string.digits
chars = [secrets.choice(alphabet) for i in range(n)]
return "".join(chars)
def bytes2int(s: bytes) -> int:
return int.from_bytes(s, byteorder="big")
def int2bytes(i: int) -> bytes:
assert i >= 0
blen = 1 if i == 0 else math.ceil(math.log2(i) / 8)
return int.to_bytes(i, byteorder="big", length=blen)
def spongebobcase(name: str) -> str:
return "".join([(c.upper() if randbool() else c) for c in name])
def leetify(name: str) -> str:
if randbool():
name = spongebobcase(name)
return "".join([(leetconv[c] if c in leetconv else c) for c in name])
def gen_username() -> bytes:
msg = ""
while len(msg) < randint(10, 30):
part = secrets.choice(names)
if randbool():
part = leetify(part)
msg += part
username = msg + randstr(30)
return username.encode()
def gen_noise() -> bytes:
selection = randint(0, len(messages) + 2)
if selection == 0:
msg = randstr(randint(30, 60))
elif selection == 1:
msg = rickroll
elif selection == 2:
msg = gplmsg
else:
msg = secrets.choice(messages)
if randbool():
msg = b64encode(msg.encode()).decode()
return msg.encode()
async def timed(promise: Any, logger: LoggerAdapter, ctx: str) -> Any:
logger.debug("START: {}".format(ctx))
start = time.time()
result = await promise
end = time.time()
logger.debug("DONE: {} (took {:.3f} seconds)".format(ctx, end - start))
return result
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