plomlombot.py

   1 #!/usr/bin/python3
   2
   3 import argparse
   4 import socket
   5 import datetime
   6 import select
   7 import time
   8 import re
   9 import requests
  10 import bs4
  11 import random
  12 import hashlib
  13 import os
  14 import plomsearch
  15
  16 # Defaults, may be overwritten by command line arguments.
  17 SERVER = "irc.freenode.net"
  18 PORT = 6667
  19 TIMEOUT = 240
  20 USERNAME = "plomlombot"
  21 NICKNAME = USERNAME
  22
  23
  24 class ExceptionForRestart(Exception):
  25     pass
  26
  27
  28 class IO:
  29
  30     def __init__(self, server, port, timeout):
  31         self.timeout = timeout
  32         self.socket = socket.socket()
  33         self.socket.connect((server, port))
  34         self.socket.setblocking(0)
  35         self.line_buffer = []
  36         self.rune_buffer = ""
  37         self.last_pong = time.time()
  38         self.servername = self.recv_line(send_ping=False).split(" ")[0][1:]
  39
  40     def _pingtest(self, send_ping=True):
  41         if self.last_pong + self.timeout < time.time():
  42             print("SERVER NOT ANSWERING")
  43             raise ExceptionForRestart
  44         if send_ping:
  45             self.send_line("PING " + self.servername)
  46
  47     def send_line(self, msg):
  48         msg = msg.replace("\r", " ")
  49         msg = msg.replace("\n", " ")
  50         if len(msg.encode("utf-8")) > 510:
  51             print("NOT SENT LINE TO SERVER (too long): " + msg)
  52         print("LINE TO SERVER: "
  53               + str(datetime.datetime.now()) + ": " + msg)
  54         msg = msg + "\r\n"
  55         msg_len = len(msg)
  56         total_sent_len = 0
  57         while total_sent_len < msg_len:
  58             sent_len = self.socket.send(bytes(msg[total_sent_len:], "UTF-8"))
  59             if sent_len == 0:
  60                 print("SOCKET CONNECTION BROKEN")
  61                 raise ExceptionForRestart
  62             total_sent_len += sent_len
  63
  64     def _recv_line_wrapped(self, send_ping=True):
  65         if len(self.line_buffer) > 0:
  66             return self.line_buffer.pop(0)
  67         while True:
  68             ready = select.select([self.socket], [], [], int(self.timeout / 2))
  69             if not ready[0]:
  70                 self._pingtest(send_ping)
  71                 return None
  72             self.last_pong = time.time()
  73             received_bytes = self.socket.recv(1024)
  74             try:
  75                 received_runes = received_bytes.decode("UTF-8")
  76             except UnicodeDecodeError:
  77                 received_runes = received_bytes.decode("latin1")
  78             if len(received_runes) == 0:
  79                 print("SOCKET CONNECTION BROKEN")
  80                 raise ExceptionForRestart
  81             self.rune_buffer += received_runes
  82             lines_split = str.split(self.rune_buffer, "\r\n")
  83             self.line_buffer += lines_split[:-1]
  84             self.rune_buffer = lines_split[-1]
  85             if len(self.line_buffer) > 0:
  86                 return self.line_buffer.pop(0)
  87
  88     def recv_line(self, send_ping=True):
  89         line = self._recv_line_wrapped(send_ping)
  90         if line:
  91             print("LINE FROM SERVER " + str(datetime.datetime.now()) + ": " +
  92                   line)
  93         return line
  94
  95
  96 def handle_command(command, argument, notice, target, session):
  97     hash_string = hashlib.md5(target.encode("utf-8")).hexdigest()
  98     quotesfile_name = "quotes_" + hash_string
  99
 100     def addquote():
 101         if not os.access(quotesfile_name, os.F_OK):
 102             quotesfile = open(quotesfile_name, "w")
 103             quotesfile.write("QUOTES FOR " + target + ":\n")
 104             quotesfile.close()
 105         quotesfile = open(quotesfile_name, "a")
 106         quotesfile.write(argument + "\n")
 107         quotesfile.close()
 108         quotesfile = open(quotesfile_name, "r")
 109         lines = quotesfile.readlines()
 110         quotesfile.close()
 111         notice("ADDED QUOTE #" + str(len(lines) - 1))
 112
 113     def quote():
 114
 115         def help():
 116             notice("SYNTAX: !quote [int] OR !quote search QUERY")
 117             notice("QUERY may be a boolean grouping of quoted or unquoted " +
 118                    "search terms, examples:")
 119             notice("!quote search foo")
 120             notice("!quote search foo AND (bar OR NOT baz)")
 121             notice("!quote search \"foo\\\"bar\" AND ('NOT\"' AND \"'foo'\"" +
 122                    " OR 'bar\\'baz')")
 123
 124         if "" == argument:
 125             tokens = []
 126         else:
 127             tokens = argument.split(" ")
 128         if (len(tokens) > 1 and tokens[0] != "search") or \
 129             (len(tokens) == 1 and
 130                 (tokens[0] == "search" or not tokens[0].isdigit())):
 131             help()
 132             return
 133         if not os.access(quotesfile_name, os.F_OK):
 134             notice("NO QUOTES AVAILABLE")
 135             return
 136         quotesfile = open(quotesfile_name, "r")
 137         lines = quotesfile.readlines()
 138         quotesfile.close()
 139         lines = lines[1:]
 140         if len(tokens) == 1:
 141             i = int(tokens[0])
 142             if i == 0 or i > len(lines):
 143                 notice("THERE'S NO QUOTE OF THAT INDEX")
 144                 return
 145             i = i - 1
 146         elif len(tokens) > 1:
 147             query = str.join(" ", tokens[1:])
 148             try:
 149                 results = plomsearch.search(query, lines)
 150             except plomsearch.LogicParserError as err:
 151                 notice("FAILED QUERY PARSING: " + str(err))
 152                 return
 153             if len(results) == 0:
 154                 notice("NO QUOTES MATCHING QUERY")
 155             else:
 156                 for result in results:
 157                     notice("QUOTE #" + str(result[0] + 1) + " : " + result[1])
 158             return
 159         else:
 160             i = random.randrange(len(lines))
 161         notice("QUOTE #" + str(i + 1) + ": " + lines[i])
 162
 163     def markov():
 164         from random import shuffle
 165         select_length = 2
 166         selections = []
 167
 168         def markov(snippet):
 169             usable_selections = []
 170             for i in range(select_length, 0, -1):
 171                 for selection in selections:
 172                     add = True
 173                     for j in range(i):
 174                         if snippet[j] != selection[j]:
 175                             add = False
 176                             break
 177                     if add:
 178                         usable_selections += [selection]
 179                 if [] != usable_selections:
 180                     break
 181             if [] == usable_selections:
 182                 usable_selections = selections
 183             shuffle(usable_selections)
 184             return usable_selections[0][select_length]
 185
 186         def purge_present_users(tokens):
 187             for name in session.uses_in_chan:
 188                 while True:
 189                     try:
 190                         del(tokens[tokens.index(name)])
 191                     except ValueError:
 192                         break
 193             return tokens
 194
 195         hash_string = hashlib.md5(target.encode("utf-8")).hexdigest()
 196         markovfeed_name = "markovfeed_" + hash_string
 197         if not os.access(markovfeed_name, os.F_OK):
 198             notice("NOT ENOUGH TEXT TO MARKOV.")
 199             return
 200         file = open(markovfeed_name, "r")
 201         lines = file.readlines()
 202         file.close()
 203         tokens = []
 204         for line in lines:
 205             line = line.replace("\n", "")
 206             tokens += line.split()
 207         tokens = purge_present_users(tokens)
 208         if len(tokens) <= select_length:
 209             notice("NOT ENOUGH TEXT TO MARKOV.")
 210             return
 211         for i in range(len(tokens) - select_length):
 212             token_list = []
 213             for j in range(select_length + 1):
 214                 token_list += [tokens[i + j]]
 215             selections += [token_list]
 216         snippet = []
 217         for i in range(select_length):
 218             snippet += [""]
 219         msg = ""
 220         while 1:
 221             new_end = markov(snippet)
 222             if len(msg) + len(new_end) > 200:
 223                 break
 224             msg += new_end + " "
 225             for i in range(select_length - 1):
 226                 snippet[i] = snippet[i + 1]
 227             snippet[select_length - 1] = new_end
 228         notice(msg.lower() + "malkovich.")
 229
 230     if "addquote" == command:
 231         addquote()
 232     elif "quote" == command:
 233         quote()
 234     elif "markov" == command:
 235         markov()
 236
 237
 238 def handle_url(url, notice, show_url=False):
 239
 240     def mobile_twitter_hack(url):
 241         re1 = 'https?://(mobile.twitter.com/)[^/]+(/status/)'
 242         re2 = 'https?://mobile.twitter.com/([^/]+)/status/([^\?/]+)'
 243         m = re.search(re1, url)
 244         if m and m.group(1) == 'mobile.twitter.com/' \
 245                 and m.group(2) == '/status/':
 246             m = re.search(re2, url)
 247             url = 'https://twitter.com/' + m.group(1) + '/status/' + m.group(2)
 248             handle_url(url, notice, True)
 249             return True
 250
 251     try:
 252         r = requests.get(url, timeout=15)
 253     except (requests.exceptions.TooManyRedirects,
 254             requests.exceptions.ConnectionError,
 255             requests.exceptions.InvalidURL,
 256             requests.exceptions.InvalidSchema) as error:
 257         notice("TROUBLE FOLLOWING URL: " + str(error))
 258         return
 259     if mobile_twitter_hack(url):
 260         return
 261     title = bs4.BeautifulSoup(r.text, "html.parser").title
 262     if title:
 263         prefix = "PAGE TITLE: "
 264         if show_url:
 265             prefix = "PAGE TITLE FOR <" + url + ">: "
 266         notice(prefix + title.string.strip())
 267     else:
 268         notice("PAGE HAS NO TITLE TAG")
 269
 270
 271 class Session:
 272
 273     def __init__(self, io, username, nickname, channel):
 274         self.io = io
 275         self.nickname = nickname
 276         self.channel = channel
 277         self.uses_in_chan = []
 278         self.io.send_line("NICK " + self.nickname)
 279         self.io.send_line("USER " + username + " 0 * : ")
 280         self.io.send_line("JOIN " + self.channel)
 281
 282     def loop(self):
 283
 284         def handle_privmsg(tokens):
 285
 286             def handle_input(msg, target):
 287
 288                 def notice(msg):
 289                     self.io.send_line("NOTICE " + target + " :" + msg)
 290
 291                 matches = re.findall("(https?://[^\s>]+)", msg)
 292                 for i in range(len(matches)):
 293                     handle_url(matches[i], notice)
 294                 if "!" == msg[0]:
 295                     tokens = msg[1:].split()
 296                     argument = str.join(" ", tokens[1:])
 297                     handle_command(tokens[0], argument, notice, target, self)
 298                     return
 299                 hash_string = hashlib.md5(target.encode("utf-8")).hexdigest()
 300                 markovfeed_name = "markovfeed_" + hash_string
 301                 file = open(markovfeed_name, "a")
 302                 file.write(msg + "\n")
 303                 file.close()
 304
 305             sender = ""
 306             for rune in tokens[0]:
 307                 if rune == "!":
 308                     break
 309                 if rune != ":":
 310                     sender += rune
 311             receiver = ""
 312             for rune in tokens[2]:
 313                 if rune == "!":
 314                     break
 315                 if rune != ":":
 316                     receiver += rune
 317             target = sender
 318             if receiver != self.nickname:
 319                 target = receiver
 320             msg = str.join(" ", tokens[3:])[1:]
 321             handle_input(msg, target)
 322
 323         def name_from_join_or_part(tokens):
 324             token = tokens[0][1:]
 325             index_cut = token.find("@")
 326             index_ex = token.find("!")
 327             if index_ex > 0 and index_ex < index_cut:
 328                 index_cut = index_ex
 329             return token[:index_cut]
 330
 331         while True:
 332             line = self.io.recv_line()
 333             if not line:
 334                 continue
 335             tokens = line.split(" ")
 336             if len(tokens) > 1:
 337                 if tokens[0] == "PING":
 338                     self.io.send_line("PONG " + tokens[1])
 339                 elif tokens[1] == "PRIVMSG":
 340                     handle_privmsg(tokens)
 341                 elif tokens[1] == "353":
 342                     names = tokens[5:]
 343                     names[0] = names[0][1:]
 344                     self.uses_in_chan += names
 345                 elif tokens[1] == "JOIN":
 346                     name = name_from_join_or_part(tokens)
 347                     if name != self.nickname:
 348                         self.uses_in_chan += [name]
 349                 elif tokens[1] == "PART":
 350                     name = name_from_join_or_part(tokens)
 351                     del(self.uses_in_chan[self.uses_in_chan.index(name)])
 352
 353 def parse_command_line_arguments():
 354     parser = argparse.ArgumentParser()
 355     parser.add_argument("-s, --server", action="store", dest="server",
 356                         default=SERVER,
 357                         help="server or server net to connect to (default: "
 358                         + SERVER + ")")
 359     parser.add_argument("-p, --port", action="store", dest="port", type=int,
 360                         default=PORT, help="port to connect to (default : "
 361                         + str(PORT) + ")")
 362     parser.add_argument("-t, --timeout", action="store", dest="timeout",
 363                         type=int, default=TIMEOUT,
 364                         help="timeout in seconds after which to attempt " +
 365                         "reconnect (default: " + str(TIMEOUT) + ")")
 366     parser.add_argument("-u, --username", action="store", dest="username",
 367                         default=USERNAME, help="username to use (default: "
 368                         + USERNAME + ")")
 369     parser.add_argument("-n, --nickname", action="store", dest="nickname",
 370                         default=NICKNAME, help="nickname to use (default: "
 371                         + NICKNAME + ")")
 372     parser.add_argument("CHANNEL", action="store", help="channel to join")
 373     opts, unknown = parser.parse_known_args()
 374     return opts
 375
 376
 377 opts = parse_command_line_arguments()
 378 while True:
 379     try:
 380         io = IO(opts.server, opts.port, opts.timeout)
 381         session = Session(io, opts.username, opts.nickname, opts.CHANNEL)
 382         session.loop()
 383     except ExceptionForRestart:
 384         io.socket.close()
 385         continue