#!/usr/bin/python3 import argparse import socket import datetime import select import time import re import urllib.request import html # Defaults, may be overwritten by command line arguments. SERVER = "irc.freenode.net" PORT = 6667 TIMEOUT = 240 USERNAME = "plomlombot" NICKNAME = USERNAME class ExceptionForRestart(Exception): pass class IO: def __init__(self, server, port, timeout): self.timeout = timeout self.socket = socket.socket() self.socket.connect((server, port)) self.socket.setblocking(0) self.line_buffer = [] self.rune_buffer = "" self.last_pong = time.time() self.servername = self.recv_line(send_ping=False).split(" ")[0][1:] def _pingtest(self, send_ping=True): if self.last_pong + self.timeout < time.time(): print("SERVER NOT ANSWERING") raise ExceptionForRestart if send_ping: self.send_line("PING " + self.servername) def send_line(self, msg): msg = msg.replace("\r", " ") msg = msg.replace("\n", " ") if len(msg.encode("utf-8")) > 510: print("NOT SENT LINE TO SERVER (too long): " + msg) print("LINE TO SERVER: " + str(datetime.datetime.now()) + ": " + msg) msg = msg + "\r\n" msg_len = len(msg) total_sent_len = 0 while total_sent_len < msg_len: sent_len = self.socket.send(bytes(msg[total_sent_len:], "UTF-8")) if sent_len == 0: print("SOCKET CONNECTION BROKEN") raise ExceptionForRestart total_sent_len += sent_len def _recv_line_wrapped(self, send_ping=True): if len(self.line_buffer) > 0: return self.line_buffer.pop(0) while True: ready = select.select([self.socket], [], [], int(self.timeout / 2)) if not ready[0]: self._pingtest(send_ping) return None self.last_pong = time.time() received_runes = self.socket.recv(1024).decode("UTF-8") if len(received_runes) == 0: print("SOCKET CONNECTION BROKEN") raise ExceptionForRestart self.rune_buffer += received_runes lines_split = str.split(self.rune_buffer, "\r\n") self.line_buffer += lines_split[:-1] self.rune_buffer = lines_split[-1] if len(self.line_buffer) > 0: return self.line_buffer.pop(0) def recv_line(self, send_ping=True): line = self._recv_line_wrapped(send_ping) if line: print("LINE FROM SERVER " + str(datetime.datetime.now()) + ": " + line) return line def init_session(server, port, timeout, nickname, username, channel): print("CONNECTING TO " + server) io = IO(server, port, timeout) io.send_line("NICK " + nickname) io.send_line("USER " + username + " 0 * : ") io.send_line("JOIN " + channel) return io def lineparser_loop(io, nickname): def act_on_privmsg(tokens): def url_check(msg): matches = re.findall("(https?://[^\s]+)", msg) for i in range(len(matches)): url = matches[i] try: webpage = urllib.request.urlopen(url, timeout=15) except (urllib.error.HTTPError, urllib.error.URLError, UnicodeError) as error: print("TROUBLE FOLLOWING URL: " + str(error)) continue charset = webpage.info().get_content_charset() if not charset: charset = "utf-8" content_type = webpage.info().get_content_type() if content_type not in ('text/html', 'text/xml', 'application/xhtml+xml'): print("TROUBLE INTERPRETING URL: bad content type " + content_type) continue content = webpage.read().decode(charset) title = str(content).split('