From c4812431e6e2e1126d331f8bbcc888bd7ca94b44 Mon Sep 17 00:00:00 2001 From: Giulio Date: Tue, 16 Mar 2021 19:28:51 +0100 Subject: [PATCH] Prod bot import --- LICENSE | 674 ++++++++++++++++++++++++++++++++++++++++++++++ README.md | 16 ++ bot.py | 181 +++++++++++++ ctftime_client.py | 27 ++ dbs.py | 177 ++++++++++++ groups.yaml | 1 + utils.py | 14 + 7 files changed, 1090 insertions(+) create mode 100644 LICENSE create mode 100644 README.md create mode 100644 bot.py create mode 100644 ctftime_client.py create mode 100644 dbs.py create mode 100644 groups.yaml create mode 100644 utils.py diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..9cecc1d --- /dev/null +++ b/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + {project} Copyright (C) {year} {fullname} + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/README.md b/README.md new file mode 100644 index 0000000..f687c7d --- /dev/null +++ b/README.md @@ -0,0 +1,16 @@ +# ctf_reminder +CTFTime RSS feed parser and reminder bot for Telegram + +Requires: + - python3 + - feedparser (for RSS feed) + - python-telegram-bot (for the telegram bot) + - python-dateutil (for date operations) + - pyyaml (for storing backup data) + - pytz (for timezone info) + + Install dependency + `pip3 install feedparser python-telegram-bot python-dateutil pyyaml` + + Run bot + `BOT_TOKEN= python3 bot.py` diff --git a/bot.py b/bot.py new file mode 100644 index 0000000..264dc15 --- /dev/null +++ b/bot.py @@ -0,0 +1,181 @@ +import os +import logging + +from telegram import * +from telegram.ext import * + +from ctftime_client import CTFTimeClient +from dbs import CTFDb, GroupDb + +db = CTFDb() +groups = GroupDb() + +TOKEN = os.environ['BOT_TOKEN'] + +# Enable logging +logging.basicConfig(format='%(asctime)s - %(name)s - \ + %(levelname)s - %(message)s', + level=logging.INFO) +logger = logging.getLogger(__name__) + + +def error(bot, update, error): + logger.warning('Update "%s" caused error "%s"' % (update, error)) + + +def start(bot, update): + """Start the bot reminder about starting and announced CTF""" + groups.add(update.message.chat_id) + update.message.reply_text('Hi! I will notify you when new CTFs \ +are announced and remind them!') + + +def stop(bot, update): + """Start the bot reminder about starting and announced CTF""" + groups.remove(update.message.chat_id) + update.message.reply_text('Stopped') + + +def fetch(bot, job): + """Job function to check for newly announced CTFs""" + to_print = db.add_events(CTFTimeClient.fetch_data()) + if to_print is []: + return + + message = "" + for ctf in to_print: + message += db.starting_message(ctf) + + if message is not "": + message = "*New CTF announced:*\n" + message + for element in groups.groups: + bot.sendMessage(element, + text=message, + parse_mode='MARKDOWN', + disable_web_page_preview=True) + + +def starting(bot, job): + """Job function to check for newly announced CTFs""" + to_print = db.starting_ctf() + if to_print is []: + return + + message = "" + for ctf in to_print: + message += db.starting_message(ctf) + + if message is not "": + message = "*The following CTF are starting in less than 24 hours:*\n" + message + for element in groups.groups: + bot.sendMessage(element, + text=message, + parse_mode='MARKDOWN', + disable_web_page_preview=True) + + +def upcoming(bot, update): + """List 5 upcoming CTFs in database""" + message = "" + for ctf in db.upcoming(): + message += db.starting_message(ctf) + + if message is not "": + message = "*Upcoming events:*\n" + message + bot.sendMessage(update.message.chat_id, + text=message, + parse_mode='MARKDOWN', + disable_web_page_preview=True) + else: + bot.sendMessage(update.message.chat_id, + text="No upcoming CTF") + + +def current(bot, update): + """List current running CTFs in database""" + message = "" + for ctf in db.running(): + message += db.finishing_message(ctf) + + if message is not "": + message = "*Now running events:*\n" + message + bot.sendMessage(update.message.chat_id, + text=message, + parse_mode='MARKDOWN', + disable_web_page_preview=True) + else: + bot.sendMessage(update.message.chat_id, + text="No CTF is currently running") + + +def info(bot, update, args): + """Get info form a given CTFid""" + if len(args) != 1: + update.message.reply_text('Usage: `/info `', + parse_mode='MARKDOWN') + return + + update.message.reply_text(db.get_info_message(args[0]), + parse_mode='MARKDOWN', + disable_web_page_preview=True) + + +def ping(bot, update): + """Classic ping command""" + message = "Pong. I'm not running in this group! Start me with `/start`" + if update.message.chat_id in groups.groups: + message = "Pong." + + update.message.reply_text(message, parse_mode='MARKDOWN') + + +def usage(bot, update): + message = "*CTF Reminder* will remind your CTF as they start!\n" + message += "`/start` to start the reminder\n" + message += "`/stop` to stop the reminder\n" + message += "`/upcoming` to list all the upcoming CTFs\n" + message += "`/now` or `/current` to list all the currently running CTFs\n" + message += "`/info ` to get info for specific CTF\n" + message += "`/ping` to check if the reminder is started\n" + message += "\nGet the bot [Source Code]" + message += "(https://github.com/TheZ3ro/ctf_reminder)" + update.message.reply_text(message, parse_mode='MARKDOWN', + disable_web_page_preview=True) + + +def main(): + db.add_events(CTFTimeClient.fetch_data()) + + updater, bot = Updater(TOKEN), Bot(TOKEN) + + # Get the dispatcher to register handlers + dp = updater.dispatcher + + # on different commands - answer in Telegram + dp.add_handler(CommandHandler("start", start)) + dp.add_handler(CommandHandler("stop", stop)) + dp.add_handler(CommandHandler("upcoming", upcoming)) + dp.add_handler(CommandHandler("now", current)) + dp.add_handler(CommandHandler("current", current)) + dp.add_handler(CommandHandler("info", info, pass_args=True)) + dp.add_handler(CommandHandler("ping", ping)) + dp.add_handler(CommandHandler("help", usage)) + + # log all errors + dp.add_error_handler(error) + + # Start the Bot + updater.start_polling(clean=True) + + job_queue = updater.job_queue + job_queue.run_repeating(fetch, 6 * 60 * 60) + job_queue.run_repeating(starting, 1 * 60 * 60) + + # Block until you press Ctrl-C or the process receives SIGINT, SIGTERM or + # SIGABRT. This should be used most of the time, since start_polling() is + # non-blocking and will stop the bot gracefully. + updater.idle() + + +if __name__ == '__main__': + main() diff --git a/ctftime_client.py b/ctftime_client.py new file mode 100644 index 0000000..9d4f3c6 --- /dev/null +++ b/ctftime_client.py @@ -0,0 +1,27 @@ +import feedparser + + +class CTFTimeClient(object): + feed_url = 'https://ctftime.org/event/list/upcoming/rss/' + + def fetch_data(): + """Function to update the CTF db with new announced CTFs""" + feed = feedparser.parse(CTFTimeClient.feed_url) + + events = [] + for post in feed.entries: + event = {} + event["title"] = post.title + event["link"] = post.id + event["url"] = post.url + event["weight"] = post.weight + event["format_text"] = post.format_text + event["format"] = int(post.format) + event["onsite"] = not bool(post.onsite) + event["restrictions"] = post.restrictions + event["start_date"] = post.start_date + event["finish_date"] = post.finish_date + event["id"] = post.ctftime_url.split('/')[2] + events.append(event) + + return events diff --git a/dbs.py b/dbs.py new file mode 100644 index 0000000..84d1fc5 --- /dev/null +++ b/dbs.py @@ -0,0 +1,177 @@ +import yaml + +from dateutil import parser +from datetime import datetime + +from utils import time_remaining, to_ita_tz + + +class CTFDb(object): + starting_template = "[{0}]({1}) ({2})\nStarting Date: *{3}*\n\n" + finishing_template = "[{0}]({1}) ({2})\nFinishing Date: *{3}*\n\n" + + def __init__(self): + self.events = {} + + def is_in_db(self, id): + """Helper function to check if a CTF is in the db""" + if self.events.get(id) is None: + return False + else: + return True + + def is_past(self, event): + """Helper function to check if an event is finished""" + finish_date = parser.parse(event["finish_date"]) + if finish_date < datetime.utcnow(): + return True + return False + + def is_ongoing(self, event): + """Helper function to check if an event is finished""" + start_date = parser.parse(event["start_date"]) + if start_date < datetime.utcnow(): + return True + return False + + def add_events(self, events): + """Add an array of events to the DB and delete past events""" + new = [] + for event in events: + r = self.add_event(event) + if r is not None: + new.append(r) + + self.delete_past_events() + return new + + def add_event(self, event): + """Add a single event to the database, performing checks""" + if self.is_past(event): + return + + if self.is_in_db(event["id"]): + # Update the db with new info but don't emit message + self.events[event["id"]] = event + return + else: + self.events[event["id"]] = event + return event + + def delete_past_events(self): + """Delete past events from the db""" + to_delete = [] + for id in self.events: + if self.is_past(self.events[id]): + to_delete.append(id) + + # Can't delete directly + for id in to_delete: + del self.events[id] + + def starting_ctf(self, delta=24): + """ + Return CTF that start in delta hours + This function should be repeated every hour + """ + starting = [] + for id in self.events: + start_date = parser.parse(self.events[id]["start_date"]) + hours_remaining = time_remaining(start_date) // (60 * 60) + if hours_remaining == delta: + starting.append(self.events[id]) + + return starting + + def upcoming(self, count=5): + """Return first `count` CTF that are starting soon""" + self.delete_past_events() + + upcoming = [] + for id in self.events: + if not self.is_ongoing(self.events[id]): + upcoming.append(self.events[id]) + upcoming = sorted(upcoming, key=lambda i: i["start_date"]) + + return upcoming[:count] + + def running(self): + """Return currently running CTF""" + self.delete_past_events() + + running = [] + for id in self.events: + if self.is_ongoing(self.events[id]): + running.append(self.events[id]) + running = sorted(running, key=lambda i: i["finish_date"]) + + return running + + def starting_message(self, ctf): + """Format a message for a starting event""" + date = parser.parse(ctf["start_date"]) + + m = CTFDb.starting_template + m = m.format(ctf["title"], ctf["link"], + str(ctf["id"]), to_ita_tz(date)) + return m + + def finishing_message(self, ctf): + """Format a message for a starting event""" + date = parser.parse(ctf["finish_date"]) + + m = CTFDb.finishing_template + m = m.format(ctf["title"], ctf["link"], + str(ctf["id"]), to_ita_tz(date)) + return m + + def get_info_message(self, id): + if not self.is_in_db(id): + return "I can\'t find a CTF with this id" + + ctf = self.events[id] + + start = parser.parse(ctf["start_date"]) + finish = parser.parse(ctf["finish_date"]) + onsite = "On site" if ctf["onsite"] else "Online" + + message = "[{0}]({1})\n".format(ctf["title"], ctf["link"]) + message += "Type: *{} {}*\n".format(ctf["format_text"], onsite) + message += "Restriction: *{}*\n".format(ctf["restrictions"]) + message += "Url: {}\n".format(ctf["url"]) + message += "Weight: {}\n".format(ctf["weight"]) + message += "Start Date: *{}*\n".format(to_ita_tz(start)) + message += "Finish Date: *{}*\n".format(to_ita_tz(finish)) + return message + + +class GroupDb(object): + groups_db = "./groups.yaml" + + def __init__(self): + self.groups = set() + self.load() + + def load(self): + """Load groups from backup file""" + try: + with open(GroupDb.groups_db, 'r') as f: + content = f.read() + self.groups = yaml.load(content) + except FileNotFoundError: + self.commit() + + def commit(self): + """Write group changes to backup file""" + with open(GroupDb.groups_db, 'w') as f: + yaml.dump(self.groups, f) + + def add(self, id): + """Add a new group""" + self.groups.add(id) + self.commit() + + def remove(self, id): + """Add a new group""" + self.groups.remove(id) + self.commit() diff --git a/groups.yaml b/groups.yaml new file mode 100644 index 0000000..42f922a --- /dev/null +++ b/groups.yaml @@ -0,0 +1 @@ +!!set {} diff --git a/utils.py b/utils.py new file mode 100644 index 0000000..b756269 --- /dev/null +++ b/utils.py @@ -0,0 +1,14 @@ +from datetime import datetime +from pytz import timezone, utc + + +def time_remaining(target): + due = target - datetime.utcnow() + return int(due.total_seconds()) + + +def to_ita_tz(utctime): + rome = timezone('Europe/Rome') + utc_dt = utctime.replace(tzinfo=utc) + rome_time = utc_dt.astimezone(rome) + return "{:%d-%m-%Y %H:%M %Z}".format(rome_time)