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author | Tim Schmidt <tim.schmidt@ewe.net> | 2018-12-03 17:22:53 +0100 |
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committer | Tim Schmidt <tim.schmidt@ewe.net> | 2018-12-03 17:22:53 +0100 |
commit | fbbd202a0416fbf5cfac8a8d2b4e43e86e15762b (patch) | |
tree | 40cd7c5be1c6b102fbb0f23ea7a2b82c234c0427 /control.py | |
download | hchat-tg-bridge-fbbd202a0416fbf5cfac8a8d2b4e43e86e15762b.tar.gz hchat-tg-bridge-fbbd202a0416fbf5cfac8a8d2b4e43e86e15762b.zip |
initial commit
Diffstat (limited to '')
-rwxr-xr-x | control.py | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/control.py b/control.py new file mode 100755 index 0000000..075656b --- /dev/null +++ b/control.py @@ -0,0 +1,207 @@ +#!/bin/python + +import datetime +import sys +import time +import threading +import traceback +import signal +import logging + +# Custom scripts +import hackchatcustom as hackchat +import telegrambot + +# Config +import config + +# Constants +CONFIG_FILE = "config.py" + +# Global variables holding both bots +hcBot = None +tgBot = None + +### General +def log(s, suppress_console=True): + """Writes a message to the channel's logfile. + Will also output to the console if suppress_console is False.""" + # Write to logfile + with open(config.LOG_FILENAME, "a") as f: + f.write("%s %s\n" % (datetime.datetime.now().isoformat(), s)) + # Send via TG-Bot + if not suppress_console: + print(s) + +def mdescape(s): + """Hacky escapes for Telegrams Markdown parser. + Should really replace this with HTML.""" + special = '*[`_' + for x in special: + s = s.replace(x, "\\" + x) + return s + +### HV-Bot +def getUser(update): + """Convenience function that extracts a nick and tripcode (if any) from + an update object and returns the nickname in the following format: + If there is not tripcode: nick + If there is a tripcode: nick#tripcode""" + nick = update["nick"] + trip = 'null' + if "trip" in update: + trip = update["trip"] + + if trip == 'null': + return nick + else: + return "%s#%s" % (nick, trip) + +def onMessage(chat, update): + """Callback function handling users submitting messages to the channel.""" + message = update["text"] + nick = update["nick"] + trip = 'null' + if "trip" in update: + trip = update["trip"] + sender = getUser(update) + + log("[%s] %s" % (sender, message)) + if nick != config.USER: + if trip == 'null': + toTG("\\[*%s*] %s" % (mdescape(nick), mdescape(message))) + else: + toTG("\\[*%s*#%s] %s" % (mdescape(nick), trip, mdescape(message))) + +def onJoin(chat, update): + """Callback function handling users joining the channel.""" + user = getUser(update) + log("# %s joined" % user) + toTG("# %s joined" % mdescape(user)) + +def onLeave(chat, update): + """Callback function handling users leaving the channel.""" + user = getUser(update) + log("# %s left" % user) + toTG("# %s left" % mdescape(user)) + +def startHCBot(): + """Starts the HC bot.""" + global hcBot + bot = hackchat.HackChat(config.USER_AND_PASS, config.CHANNEL) + bot.on_message += [onMessage] + bot.on_join += [onJoin] + bot.on_leave += [onLeave] + hcBot = bot + bot.run() + +def botCrashed(signum, frame): + """Recovery routine that restarts the HC bot upon crash. + This is run automatically when a SIGALRT is received + (tested on Linux only) and thus relies on the HC bot + catching any relevant exception and sending a SIGALRT.""" + hcBot.stop() + + log("=!= Bot crashed / lost connection. Retrying in %i seconds..."\ + % config.RECONNECT_DELAY, suppress_console=False) + toTG("=!= Bot crashed / lost connection. Retrying in %i seconds..."\ + % config.RECONNECT_DELAY) + time.sleep(config.RECONNECT_DELAY) + log("Reconnecting...", suppress_console=False) + toTG("Reconnecting...") + startHCBot() + log("Reconnected!", suppress_console=False) + toTG("Reconnected!") + +def kill(): + """Debug command to test reconnect functionality""" + hcBot.ws.close() + +### TG-Bot Config +def onTGMessage(text): + """Handles receiving messages from the Telegram bot. + Currently, they are simple forwarded to the HC bot + which will then send them""" + hcBot.send_message(text) + +def toTG(s): + """Handles sending messages to the Telegram bot. + Currently, the TG bot will simply send + the message with Markdown parsing enabled.""" + tgBot.send(s) + +def startTGBot(): + """Starts the Telegram bot and sets the global + tgBot variable.""" + global tgBot + tgBot = telegrambot.TGBot() + tgBot.texthandlers += [onTGMessage] + tgBot.addCommand("active", cmdActive) + tgBot.addCommand("online", cmdOnline) + tgBot.run() + +def cmdActive(bot, update): + """TG command: /active + Checks wether the HC bot has been stopped. + This might not work correctly if the HC bot crashed.""" + if not hcBot.stopped: + tgBot.send("+++ ACTIVE") + else: + tgBot.send("--- _not_ active") + +def cmdOnline(bot, update): + """TG command: /online + Returns the list of users that are in the HC channel. + Users are listed without their tripcode.""" + users = list(hcBot.online_users) + users.sort() + tgBot.send("Users online:\n%s" % + mdescape(", ".join(users))) + + +### Common +def quit(): + """Gracefully shuts down both bots""" + global should_quit + hcBot.stop() + tgBot.stop() + should_quit = True + +### Main +if __name__ == "__main__": + logging.basicConfig(level=logging.DEBUG, + format='%(asctime)s - %(name)s - %(levelname)s - %(message)s') + + COMMANDS_CLI = { + "kill": kill, + "quit": quit + #"online" : cmdOnline + } + + should_quit = False + + # Interpret SIGALRM as bot crash + signal.signal(signal.SIGALRM, botCrashed) + + try: + startTGBot() + startHCBot() + while not should_quit: + cmd = input("> ") + if not cmd in COMMANDS_CLI: + print("Unknown command!") + else: + COMMANDS_CLI[cmd]() + + except (KeyboardInterrupt, EOFError) as e: + print("Interrupt received. Shutting down...") + quit() + + except: + print("====================") + print("Main thread crashed!") + print("====================") + print() + traceback.print_exc() + + |