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 import irclog
  16
  17 # Defaults, may be overwritten by command line arguments.
  18 SERVER = "irc.freenode.net"
  19 PORT = 6667
  20 TIMEOUT = 240
  21 USERNAME = "plomlombot"
  22 NICKNAME = USERNAME
  23 TWTFILE = ""
  24 DBDIR = os.path.expanduser("~/plomlombot_db")
  25
  26
  27 def write_to_file(path, mode, text):
  28     f = open(path, mode)
  29     f.write(text)
  30     f.close()
  31
  32
  33 class ExceptionForRestart(Exception):
  34     pass
  35
  36
  37 class Line:
  38
  39     def __init__(self, line):
  40         self.line = line
  41         self.tokens = line.split(" ")
  42         self.sender = ""
  43         if self.tokens[0][0] == ":":
  44             for rune in self.tokens[0][1:]:
  45                 if rune in {"!", "@"}:
  46                     break
  47                 self.sender += rune
  48         self.receiver = ""
  49         if len(self.tokens) > 2:
  50             for rune in self.tokens[2]:
  51                 if rune in {"!", "@"}:
  52                     break
  53                 if rune != ":":
  54                     self.receiver += rune
  55
  56
  57 class IO:
  58
  59     def __init__(self, server, port, timeout):
  60         self.timeout = timeout
  61         self.socket = socket.socket()
  62         try:
  63             self.socket.connect((server, port))
  64         except TimeoutError:
  65             raise ExceptionForRestart
  66         self.socket.setblocking(0)
  67         self.line_buffer = []
  68         self.rune_buffer = ""
  69         self.last_pong = time.time()
  70         self.servername = self.recv_line(send_ping=False).split(" ")[0][1:]
  71
  72     def _pingtest(self, send_ping=True):
  73         if self.last_pong + self.timeout < time.time():
  74             print("SERVER NOT ANSWERING")
  75             raise ExceptionForRestart
  76         if send_ping:
  77             self.send_line("PING " + self.servername)
  78
  79     def send_line(self, msg):
  80         msg = msg.replace("\r", " ")
  81         msg = msg.replace("\n", " ")
  82         if len(msg.encode("utf-8")) > 510:
  83             print("NOT SENT LINE TO SERVER (too long): " + msg)
  84         print("LINE TO SERVER: "
  85               + str(datetime.datetime.now()) + ": " + msg)
  86         msg = msg + "\r\n"
  87         msg_len = len(msg)
  88         total_sent_len = 0
  89         while total_sent_len < msg_len:
  90             sent_len = self.socket.send(bytes(msg[total_sent_len:], "UTF-8"))
  91             if sent_len == 0:
  92                 print("SOCKET CONNECTION BROKEN")
  93                 raise ExceptionForRestart
  94             total_sent_len += sent_len
  95
  96     def _recv_line_wrapped(self, send_ping=True):
  97         if len(self.line_buffer) > 0:
  98             return self.line_buffer.pop(0)
  99         while True:
 100             ready = select.select([self.socket], [], [], int(self.timeout / 2))
 101             if not ready[0]:
 102                 self._pingtest(send_ping)
 103                 return None
 104             self.last_pong = time.time()
 105             received_bytes = self.socket.recv(1024)
 106             try:
 107                 received_runes = received_bytes.decode("UTF-8")
 108             except UnicodeDecodeError:
 109                 received_runes = received_bytes.decode("latin1")
 110             if len(received_runes) == 0:
 111                 print("SOCKET CONNECTION BROKEN")
 112                 raise ExceptionForRestart
 113             self.rune_buffer += received_runes
 114             lines_split = str.split(self.rune_buffer, "\r\n")
 115             self.line_buffer += lines_split[:-1]
 116             self.rune_buffer = lines_split[-1]
 117             if len(self.line_buffer) > 0:
 118                 return self.line_buffer.pop(0)
 119
 120     def recv_line(self, send_ping=True):
 121         line = self._recv_line_wrapped(send_ping)
 122         if line:
 123             print("LINE FROM SERVER " + str(datetime.datetime.now()) + ": " +
 124                   line)
 125         return line
 126
 127
 128 def handle_command(command, argument, notice, target, session):
 129
 130     def addquote():
 131         if not os.access(session.quotesfile, os.F_OK):
 132             write_to_file(session.quotesfile, "w",
 133                           "QUOTES FOR " + target + ":\n")
 134         write_to_file(session.quotesfile, "a", argument + "\n")
 135         quotesfile = open(session.quotesfile, "r")
 136         lines = quotesfile.readlines()
 137         quotesfile.close()
 138         notice("ADDED QUOTE #" + str(len(lines) - 1))
 139
 140     def quote():
 141
 142         def help():
 143             notice("SYNTAX: !quote [int] OR !quote search QUERY")
 144             notice("QUERY may be a boolean grouping of quoted or unquoted " +
 145                    "search terms, examples:")
 146             notice("!quote search foo")
 147             notice("!quote search foo AND (bar OR NOT baz)")
 148             notice("!quote search \"foo\\\"bar\" AND ('NOT\"' AND \"'foo'\"" +
 149                    " OR 'bar\\'baz')")
 150
 151         if "" == argument:
 152             tokens = []
 153         else:
 154             tokens = argument.split(" ")
 155         if (len(tokens) > 1 and tokens[0] != "search") or \
 156             (len(tokens) == 1 and
 157                 (tokens[0] == "search" or not tokens[0].isdigit())):
 158             help()
 159             return
 160         if not os.access(session.quotesfile, os.F_OK):
 161             notice("NO QUOTES AVAILABLE")
 162             return
 163         quotesfile = open(session.quotesfile, "r")
 164         lines = quotesfile.readlines()
 165         quotesfile.close()
 166         lines = lines[1:]
 167         if len(tokens) == 1:
 168             i = int(tokens[0])
 169             if i == 0 or i > len(lines):
 170                 notice("THERE'S NO QUOTE OF THAT INDEX")
 171                 return
 172             i = i - 1
 173         elif len(tokens) > 1:
 174             query = str.join(" ", tokens[1:])
 175             try:
 176                 results = plomsearch.search(query, lines)
 177             except plomsearch.LogicParserError as err:
 178                 notice("FAILED QUERY PARSING: " + str(err))
 179                 return
 180             if len(results) == 0:
 181                 notice("NO QUOTES MATCHING QUERY")
 182             else:
 183                 if len(results) > 3:
 184                     notice("SHOWING 3 OF " + str(len(results)) + " QUOTES")
 185                 for result in results[:3]:
 186                     notice("QUOTE #" + str(result[0] + 1) + ": "
 187                            + result[1][:-1])
 188             return
 189         else:
 190             i = random.randrange(len(lines))
 191         notice("QUOTE #" + str(i + 1) + ": " + lines[i][:-1])
 192
 193     def markov():
 194         from random import choice, shuffle
 195         select_length = 2
 196         selections = []
 197
 198         def markov(snippet):
 199             usable_selections = []
 200             for i in range(select_length, 0, -1):
 201                 for selection in selections:
 202                     add = True
 203                     for j in range(i):
 204                         j += 1
 205                         if snippet[-j] != selection[-(j+1)]:
 206                             add = False
 207                             break
 208                     if add:
 209                         usable_selections += [selection]
 210                 if [] != usable_selections:
 211                     break
 212             if [] == usable_selections:
 213                 usable_selections = selections
 214             selection = choice(usable_selections)
 215             return selection[select_length]
 216
 217         if not os.access(session.markovfile, os.F_OK):
 218             notice("NOT ENOUGH TEXT TO MARKOV.")
 219             return
 220
 221         # Lowercase incoming lines, ensure they end in a sentence end mark.
 222         file = open(session.markovfile, "r")
 223         lines = file.readlines()
 224         file.close()
 225         tokens = []
 226         sentence_end_markers = ".!?)("
 227         for line in lines:
 228             line = line.lower().replace("\n", "")
 229             if line[-1] not in sentence_end_markers:
 230                 line += "."
 231             tokens += line.split()
 232         if len(tokens) <= select_length:
 233             notice("NOT ENOUGH TEXT TO MARKOV.")
 234             return
 235
 236         # Replace URLs with escape string for now, so that the Markov selector
 237         # won't see them as different strings. Stash replaced URLs in urls.
 238         urls = []
 239         url_escape = "\nURL"
 240         url_starts = ["http://", "https://", "<http://", "<https://"]
 241         for i in range(len(tokens)):
 242             for url_start in url_starts:
 243                 if tokens[i][:len(url_start)] == url_start:
 244                     length = len(tokens[i])
 245                     if url_start[0] == "<":
 246                         try:
 247                             length = tokens[i].index(">") + 1
 248                         except ValueError:
 249                             pass
 250                     urls += [tokens[i][:length]]
 251                     tokens[i] = url_escape + tokens[i][length:]
 252                     break
 253
 254         # For each snippet of select_length, use markov() to find continuation
 255         # token from selections. Replace present users' names with malkovich.
 256         # Start snippets with the beginning of a sentence, if possible.
 257         for i in range(len(tokens) - select_length):
 258             token_list = []
 259             for j in range(select_length + 1):
 260                 token_list += [tokens[i + j]]
 261             selections += [token_list]
 262         snippet = []
 263         for i in range(select_length):
 264             snippet += [""]
 265         shuffle(selections)
 266         for i in range(len(selections)):
 267             if selections[i][0][-1] in sentence_end_markers:
 268                 for i in range(select_length):
 269                     snippet[i] = selections[i][i + 1]
 270                 break
 271         msg = ""
 272         malkovich = "malkovich"
 273         while 1:
 274             new_end = markov(snippet)
 275             for name in session.users_in_chan:
 276                 if new_end[:len(name)] == name.lower():
 277                     new_end = malkovich + new_end[len(name):]
 278                     break
 279             if len(msg) + len(new_end) > 200:
 280                 break
 281             msg += new_end + " "
 282             for i in range(select_length - 1):
 283                 snippet[i] = snippet[i + 1]
 284             snippet[select_length - 1] = new_end
 285
 286         # Replace occurences of url escape string with random choice from urls.
 287         while True:
 288             index = msg.find(url_escape)
 289             if index < 0:
 290                 break
 291             msg = msg.replace(url_escape, choice(urls), 1)
 292
 293         # More meaningful ways to randomly end sentences.
 294         notice(msg + malkovich + ".")
 295
 296     def twt():
 297         def try_open(mode):
 298             try:
 299                 twtfile = open(session.twtfile, mode)
 300             except (PermissionError, FileNotFoundError) as err:
 301                 notice("CAN'T ACCESS OR CREATE TWT FILE: " + str(err))
 302                 return None
 303             return twtfile
 304
 305         from datetime import datetime
 306         if not os.access(session.twtfile, os.F_OK):
 307             twtfile = try_open("w")
 308             if None == twtfile:
 309                 return
 310             twtfile.close()
 311         twtfile = try_open("a")
 312         if None == twtfile:
 313             return
 314         twtfile.write(datetime.utcnow().isoformat() + "\t" + argument + "\n")
 315         twtfile.close()
 316         notice("WROTE TWT.")
 317
 318     if "addquote" == command:
 319         addquote()
 320     elif "quote" == command:
 321         quote()
 322     elif "markov" == command:
 323         markov()
 324     elif "twt" == command:
 325         twt()
 326
 327
 328 def handle_url(url, notice, show_url=False):
 329
 330     def mobile_twitter_hack(url):
 331         re1 = 'https?://(mobile.twitter.com/)[^/]+(/status/)'
 332         re2 = 'https?://mobile.twitter.com/([^/]+)/status/([^\?/]+)'
 333         m = re.search(re1, url)
 334         if m and m.group(1) == 'mobile.twitter.com/' \
 335                 and m.group(2) == '/status/':
 336             m = re.search(re2, url)
 337             url = 'https://twitter.com/' + m.group(1) + '/status/' + m.group(2)
 338             handle_url(url, notice, True)
 339             return True
 340
 341     try:
 342         r = requests.get(url, timeout=5, stream=True)
 343         r.raw.decode_content = True
 344         text = r.raw.read(10000000+1)
 345         if len(text) > 10000000:
 346             raise ValueError('Too large a response')
 347     except (requests.exceptions.TooManyRedirects,
 348             requests.exceptions.ConnectionError,
 349             requests.exceptions.InvalidURL,
 350             UnicodeError,
 351             ValueError,
 352             requests.exceptions.InvalidSchema) as error:
 353         notice("TROUBLE FOLLOWING URL: " + str(error))
 354         return
 355     if mobile_twitter_hack(url):
 356         return
 357     title = bs4.BeautifulSoup(text, "html5lib").title
 358     if title and title.string:
 359         prefix = "PAGE TITLE: "
 360         if show_url:
 361             prefix = "PAGE TITLE FOR <" + url + ">: "
 362         notice(prefix + title.string.strip())
 363     else:
 364         notice("PAGE HAS NO TITLE TAG")
 365
 366
 367 class Session:
 368
 369     def __init__(self, io, username, nickname, channel, twtfile, dbdir, rmlogs):
 370         self.io = io
 371         self.nickname = nickname
 372         self.username = username
 373         self.channel = channel
 374         self.users_in_chan = []
 375         self.twtfile = twtfile
 376         self.dbdir = dbdir
 377         self.rmlogs = rmlogs
 378         self.io.send_line("NICK " + self.nickname)
 379         self.io.send_line("USER " + self.username + " 0 * : ")
 380         self.io.send_line("JOIN " + self.channel)
 381         hash_channel = hashlib.md5(self.channel.encode("utf-8")).hexdigest()
 382         self.chandir = self.dbdir + "/" + hash_channel + "/"
 383         self.rawlogdir = self.chandir + "raw_logs/"
 384         self.logdir = self.chandir + "logs/"
 385         if not os.path.exists(self.logdir):
 386             os.makedirs(self.logdir)
 387         if not os.path.exists(self.rawlogdir):
 388             os.makedirs(self.rawlogdir)
 389         self.markovfile = self.chandir + "markovfeed"
 390         self.quotesfile = self.chandir + "quotes"
 391
 392     def loop(self):
 393
 394         def log(line):
 395             if type(line) == str:
 396                 line = Line(":" + self.nickname + "!~" + self.username +
 397                             "@localhost" + " " + line)
 398             now = datetime.datetime.utcnow()
 399             form = "%Y-%m-%d %H:%M:%S UTC\t"
 400             write_to_file(self.rawlogdir + now.strftime("%Y-%m-%d") + ".txt",
 401                           "a", now.strftime(form) + " " + line.line + "\n")
 402             to_log = irclog.format_logline(line, self.channel)
 403             if to_log != None:
 404                 write_to_file(self.logdir + now.strftime("%Y-%m-%d") + ".txt",
 405                               "a", now.strftime(form) + " " + to_log + "\n")
 406
 407         def handle_privmsg(line):
 408
 409             def notice(msg):
 410                 line = "NOTICE " + target + " :" + msg
 411                 self.io.send_line(line)
 412                 log(line)
 413
 414             target = line.sender
 415             if line.receiver != self.nickname:
 416                 target = line.receiver
 417             msg = str.join(" ", line.tokens[3:])[1:]
 418             matches = re.findall("(https?://[^\s>]+)", msg)
 419             for i in range(len(matches)):
 420                 handle_url(matches[i], notice)
 421             if "!" == msg[0]:
 422                 tokens = msg[1:].split()
 423                 argument = str.join(" ", tokens[1:])
 424                 handle_command(tokens[0], argument, notice, target, self)
 425                 return
 426             write_to_file(self.markovfile, "a", msg + "\n")
 427
 428         now = datetime.datetime.utcnow()
 429         write_to_file(self.logdir + now.strftime("%Y-%m-%d") + ".txt", "a",
 430                       "-----------------------\n")
 431         while True:
 432             if self.rmlogs > 0:
 433                 for f in os.listdir(self.logdir):
 434                     f = os.path.join(self.logdir, f)
 435                     if os.path.isfile(f) and \
 436                             os.stat(f).st_mtime < time.time() - self.rmlogs:
 437                         os.remove(f)
 438             line = self.io.recv_line()
 439             if not line:
 440                 continue
 441             line = Line(line)
 442             log(line)
 443             if len(line.tokens) > 1:
 444                 if line.tokens[0] == "PING":
 445                     self.io.send_line("PONG " + line.tokens[1])
 446                 elif line.tokens[1] == "PRIVMSG":
 447                     handle_privmsg(line)
 448                 elif line.tokens[1] == "353":
 449                     names = line.tokens[5:]
 450                     names[0] = names[0][1:]
 451                     for i in range(len(names)):
 452                         names[i] = names[i].replace("@", "").replace("+", "")
 453                     self.users_in_chan += names
 454                 elif line.tokens[1] == "JOIN" and line.sender != self.nickname:
 455                     self.users_in_chan += [line.sender]
 456                 elif line.tokens[1] == "PART":
 457                     del(self.users_in_chan[self.users_in_chan.index(line.sender)])
 458                 elif line.tokens[1] == "NICK":
 459                     del(self.users_in_chan[self.users_in_chan.index(line.sender)])
 460                     self.users_in_chan += [line.receiver]
 461
 462
 463 def parse_command_line_arguments():
 464     parser = argparse.ArgumentParser()
 465     parser.add_argument("-s, --server", action="store", dest="server",
 466                         default=SERVER,
 467                         help="server or server net to connect to (default: "
 468                         + SERVER + ")")
 469     parser.add_argument("-p, --port", action="store", dest="port", type=int,
 470                         default=PORT, help="port to connect to (default : "
 471                         + str(PORT) + ")")
 472     parser.add_argument("-w, --wait", action="store", dest="timeout",
 473                         type=int, default=TIMEOUT,
 474                         help="timeout in seconds after which to attempt "
 475                         "reconnect (default: " + str(TIMEOUT) + ")")
 476     parser.add_argument("-u, --username", action="store", dest="username",
 477                         default=USERNAME, help="username to use (default: "
 478                         + USERNAME + ")")
 479     parser.add_argument("-n, --nickname", action="store", dest="nickname",
 480                         default=NICKNAME, help="nickname to use (default: "
 481                         + NICKNAME + ")")
 482     parser.add_argument("-t, --twtxtfile", action="store", dest="twtfile",
 483                         default=TWTFILE, help="twtxt file to use (default: "
 484                         + TWTFILE + ")")
 485     parser.add_argument("-d, --dbdir", action="store", dest="dbdir",
 486                         default=DBDIR, help="directory to store DB files in")
 487     parser.add_argument("-r, --rmlogs", action="store", dest="rmlogs",
 488                         type=int, default=0,
 489                         help="maximum age in seconds for logfiles in logs/ "
 490                         "(0 means: never delete, and is default)")
 491     parser.add_argument("CHANNEL", action="store", help="channel to join")
 492     opts, unknown = parser.parse_known_args()
 493     return opts
 494
 495
 496 opts = parse_command_line_arguments()
 497 while True:
 498     try:
 499         io = IO(opts.server, opts.port, opts.timeout)
 500         hash_server = hashlib.md5(opts.server.encode("utf-8")).hexdigest()
 501         dbdir = opts.dbdir + "/" + hash_server
 502         session = Session(io, opts.username, opts.nickname, opts.CHANNEL,
 503             opts.twtfile, dbdir, opts.rmlogs)
 504         session.loop()
 505     except ExceptionForRestart:
 506         io.socket.close()
 507         continue