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1 | #!/usr/bin/python | |
2 | ||
3 | # Erebus IRC bot - Author: John Runyon | |
4 | # "Bot" and "BotConnection" classes (handling a specific "arm") | |
5 | ||
6 | import socket, sys, time, threading, os, random | |
7 | from collections import deque | |
8 | ||
9 | class MyTimer(threading._Timer): | |
10 | def __init__(self, *args, **kwargs): | |
11 | threading._Timer.__init__(self, *args, **kwargs) | |
12 | self.daemon = True | |
13 | ||
14 | ||
15 | #bots = {'erebus': bot.Bot(nick='Erebus', user='erebus', bind='', server='irc.quakenet.org', port=6667, realname='Erebus')} | |
16 | class Bot(object): | |
17 | def __init__(self, parent, nick, user, bind, authname, authpass, server, port, realname): | |
18 | self.parent = parent | |
19 | self.nick = nick | |
20 | self.permnick = nick | |
21 | self.user = user | |
22 | self.realname = realname | |
23 | ||
24 | self.authname = authname | |
25 | self.authpass = authpass | |
26 | ||
27 | curs = self.parent.db.cursor() | |
28 | if curs.execute("SELECT chname FROM chans WHERE bot = %s AND active = 1", (self.nick,)): | |
29 | chansres = curs.fetchall() | |
30 | curs.close() | |
31 | self.chans = [self.parent.newchannel(self, row['chname']) for row in chansres] | |
32 | else: | |
33 | self.chans = [] | |
34 | ||
35 | self.conn = BotConnection(self, bind, server, port) | |
36 | ||
37 | self.lastreceived = time.time() #time we last received a line from the server | |
38 | self.watchdog() | |
39 | ||
40 | self.msgqueue = deque() | |
41 | self.slowmsgqueue = deque() | |
42 | self.makemsgtimer() | |
43 | self.msgtimer.start() | |
44 | ||
45 | def __del__(self): | |
46 | curs = self.parent.db.cursor() | |
47 | curs.execute("UPDATE bots SET connected = 0 WHERE nick = %s", (self.nick,)) | |
48 | curs.close() | |
49 | ||
50 | def watchdog(self): | |
51 | if time.time() > self.parent.cfg.get('watchdog', 'maxtime', default=300)+self.lastreceived: | |
52 | self.parse("ERROR :Fake-error from watchdog timer.") | |
53 | self.watchdogtimer = MyTimer(self.parent.cfg.get('watchdog', 'interval', default=30), self.watchdog) | |
54 | ||
55 | def log(self, *args, **kwargs): | |
56 | self.parent.log(self.nick, *args, **kwargs) | |
57 | ||
58 | def connect(self): | |
59 | if self.conn.connect(): | |
60 | self.parent.newfd(self, self.conn.socket.fileno()) | |
61 | ||
62 | def getdata(self): | |
63 | self.lastreceived = time.time() | |
64 | return self.conn.read() | |
65 | ||
66 | def _checknick(self): # check if we're using the right nick, try changing | |
67 | if self.nick != self.permnick and self.conn.registered(): | |
68 | self.conn.send("NICK %s" % (self.permnick)) | |
69 | ||
70 | def parse(self, line): | |
71 | self.log('I', line) | |
72 | pieces = line.split() | |
73 | ||
74 | # dispatch dict | |
75 | zero = { #things to look for without source | |
76 | 'NOTICE': self._gotconnected, | |
77 | 'PING': self._gotping, | |
78 | 'ERROR': self._goterror, | |
79 | } | |
80 | one = { #things to look for after source | |
81 | '001': self._got001, | |
82 | '376': self._gotRegistered, | |
83 | '422': self._gotRegistered, | |
84 | 'PRIVMSG': self._gotprivmsg, | |
85 | '353': self._got353, #NAMES | |
86 | '354': self._got354, #WHO | |
87 | '433': self._got433, #nick in use | |
88 | 'JOIN': self._gotjoin, | |
89 | 'PART': self._gotpart, | |
90 | 'KICK': self._gotkick, | |
91 | 'QUIT': self._gotquit, | |
92 | 'NICK': self._gotnick, | |
93 | 'MODE': self._gotmode, | |
94 | } | |
95 | ||
96 | if self.parent.hasnumhook(pieces[1]): | |
97 | hooks = self.parent.getnumhook(pieces[1]) | |
98 | for callback in hooks: | |
99 | try: | |
100 | callback(self, line) | |
101 | except Exception: | |
102 | self.__debug_cbexception("numhook", line) | |
103 | ||
104 | if pieces[0] in zero: | |
105 | zero[pieces[0]](pieces) | |
106 | elif pieces[1] in one: | |
107 | one[pieces[1]](pieces) | |
108 | ||
109 | def _gotconnected(self, pieces): | |
110 | if not self.conn.registered(): | |
111 | self.conn.register() | |
112 | def _gotping(self, pieces): | |
113 | self.conn.send("PONG %s" % (pieces[1])) | |
114 | self._checknick() | |
115 | def _goterror(self, pieces): | |
116 | try: self.quit("Error detected: %s" % ' '.join(pieces)) | |
117 | except: pass | |
118 | curs = self.parent.db.cursor() | |
119 | curs.execute("UPDATE bots SET connected = 0") | |
120 | curs.close() | |
121 | sys.exit(2) | |
122 | os._exit(2) | |
123 | def _got001(self, pieces): | |
124 | pass # wait until the end of MOTD instead | |
125 | def _gotRegistered(self, pieces): | |
126 | self.conn.registered(True) | |
127 | ||
128 | curs = self.parent.db.cursor() | |
129 | curs.execute("UPDATE bots SET connected = 1 WHERE nick = %s", (self.nick,)) | |
130 | curs.close() | |
131 | ||
132 | self.conn.send("MODE %s +x" % (pieces[2])) | |
133 | if self.authname is not None and self.authpass is not None: | |
134 | self.conn.send("AUTH %s %s" % (self.authname, self.authpass)) | |
135 | for c in self.chans: | |
136 | self.join(c.name) | |
137 | def _gotprivmsg(self, pieces): | |
138 | nick = pieces[0].split('!')[0][1:] | |
139 | user = self.parent.user(nick) | |
140 | target = pieces[2] | |
141 | msg = ' '.join(pieces[3:])[1:] | |
142 | self.parsemsg(user, target, msg) | |
143 | def _got353(self, pieces): | |
144 | prefixes = {'@': 'op', '+': 'voice'} | |
145 | chan = self.parent.channel(pieces[4]) | |
146 | names = pieces[5:] | |
147 | names[0] = names[0][1:] #remove colon | |
148 | for n in names: | |
149 | if n[0] in prefixes: | |
150 | user = self.parent.user(n[1:]) | |
151 | chan.userjoin(user, prefixes[n[0]]) | |
152 | else: | |
153 | user = self.parent.user(n) | |
154 | chan.userjoin(user) | |
155 | user.join(chan) | |
156 | def _got354(self, pieces): | |
157 | qt = int(pieces[3]) | |
158 | if qt < 3: | |
159 | nick, auth = pieces[4:6] | |
160 | chan = None | |
161 | else: | |
162 | chan, nick, auth = pieces[4:7] | |
163 | chan = self.parent.channel(chan) | |
164 | user = self.parent.user(nick) | |
165 | user.authed(auth) | |
166 | ||
167 | if chan is not None: | |
168 | user.join(chan) | |
169 | chan.userjoin(user) | |
170 | ||
171 | if qt == 2: # triggered by !auth | |
172 | if user.isauthed(): | |
173 | if user.glevel > 0: | |
174 | self.msg(nick, "You are now known as #%s (access level: %s)" % (auth, user.glevel)) | |
175 | else: | |
176 | self.msg(nick, "You are now known as #%s (not staff)" % (auth)) | |
177 | else: | |
178 | self.msg(nick, "I tried, but you're not authed!") | |
179 | def _got433(self, pieces): | |
180 | if not self.conn.registered(): #we're trying to connect | |
181 | newnick = "%s%d" % (self.nick, random.randint(111,999)) | |
182 | self.conn.send("NICK %s" % (newnick)) | |
183 | self.nick = newnick | |
184 | def _gotjoin(self, pieces): | |
185 | nick = pieces[0].split('!')[0][1:] | |
186 | chan = self.parent.channel(pieces[2]) | |
187 | ||
188 | if nick == self.nick: | |
189 | self.conn.send("WHO %s c%%cant,3" % (chan)) | |
190 | else: | |
191 | user = self.parent.user(nick, justjoined=True) | |
192 | chan.userjoin(user) | |
193 | user.join(chan) | |
194 | def _clientLeft(self, nick, chan): | |
195 | if nick != self.nick: | |
196 | gone = self.parent.user(nick).part(chan) | |
197 | chan.userpart(self.parent.user(nick)) | |
198 | if gone: | |
199 | self.parent.user(nick).quit() | |
200 | del self.parent.users[nick.lower()] | |
201 | def _gotpart(self, pieces): | |
202 | nick = pieces[0].split('!')[0][1:] | |
203 | chan = self.parent.channel(pieces[2]) | |
204 | self._clientLeft(nick, chan) | |
205 | def _gotkick(self, pieces): | |
206 | nick = pieces[3] | |
207 | chan = self.parent.channel(pieces[2]) | |
208 | self._clientLeft(nick, chan) | |
209 | def _gotquit(self, pieces): | |
210 | nick = pieces[0].split('!')[0][1:] | |
211 | if nick != self.nick: | |
212 | for chan in self.parent.user(nick).chans: | |
213 | chan.userpart(self.parent.user(nick)) | |
214 | self.parent.user(nick).quit() | |
215 | del self.parent.users[nick.lower()] | |
216 | def _gotnick(self, pieces): | |
217 | oldnick = pieces[0].split('!')[0][1:] | |
218 | newnick = pieces[2][1:] | |
219 | if newnick.lower() != oldnick.lower(): | |
220 | self.parent.users[newnick.lower()] = self.parent.users[oldnick.lower()] | |
221 | del self.parent.users[oldnick.lower()] | |
222 | self.parent.users[newnick.lower()].nickchange(newnick) | |
223 | def _gotmode(self, pieces): | |
224 | source = pieces[0].split('!')[0][1:] | |
225 | chan = pieces[2] | |
226 | if not chan.startswith("#"): return | |
227 | chan = self.parent.channel(pieces[2]) | |
228 | mode = pieces[3] | |
229 | args = pieces[4:] | |
230 | ||
231 | adding = True | |
232 | for c in mode: | |
233 | if c == '+': | |
234 | adding = True | |
235 | elif c == '-': | |
236 | adding = False | |
237 | elif c == 'o': | |
238 | if adding: | |
239 | chan.userop(self.parent.user(args.pop(0))) | |
240 | else: | |
241 | chan.userdeop(self.parent.user(args.pop(0))) | |
242 | elif c == 'v': | |
243 | if adding: | |
244 | chan.uservoice(self.parent.user(args.pop(0))) | |
245 | else: | |
246 | chan.userdevoice(self.parent.user(args.pop(0))) | |
247 | else: | |
248 | pass # don't care about other modes | |
249 | ||
250 | def __debug_cbexception(self, source, *args, **kwargs): | |
251 | if int(self.parent.cfg.get('debug', 'cbexc', default=0)) == 1: | |
252 | self.conn.send("PRIVMSG %s :%09.3f \ 34\1f!!! CBEXC\1f\ 3 %s" % (self.parent.cfg.get('debug', 'owner'), time.time() % 100000, source)) | |
253 | __import__('traceback').print_exc() | |
254 | self.log('!', "CBEXC %s %r %r" % (source, args, kwargs)) | |
255 | # print "%09.3f %s [!] CBEXC %s %r %r" % (time.time() % 100000, self.nick, source, args, kwargs) | |
256 | ||
257 | ||
258 | def parsemsg(self, user, target, msg): | |
259 | if user.glevel <= -2: return # short circuit if user is IGNORED | |
260 | chan = None | |
261 | chanparam = None # was the channel specified as part of the command? | |
262 | if len(msg) == 0: | |
263 | return | |
264 | ||
265 | triggerused = msg.startswith(self.parent.trigger) | |
266 | if triggerused: msg = msg[len(self.parent.trigger):] | |
267 | pieces = msg.split() | |
268 | ||
269 | if target == self.nick: | |
270 | if msg.startswith("\001"): #ctcp | |
271 | msg = msg.strip("\001") | |
272 | if msg == "VERSION": | |
273 | self.msg(user, "\001VERSION Erebus v%d.%d - http://github.com/zonidjan/erebus" % (self.parent.APIVERSION, self.parent.RELEASE)) | |
274 | return | |
275 | ||
276 | if target != self.nick: # message was sent to a channel | |
277 | try: | |
278 | if msg.startswith('*'): # message may be addressed to bot by "*BOTNICK" trigger? | |
279 | if pieces[0][1:].lower() == self.nick.lower(): | |
280 | pieces.pop(0) # command actually starts with next word | |
281 | msg = ' '.join(pieces) # command actually starts with next word | |
282 | triggerused = True | |
283 | except IndexError: | |
284 | return # "message" is empty | |
285 | ||
286 | if len(pieces) > 1: | |
287 | chanword = pieces[1] | |
288 | if chanword.startswith('#'): | |
289 | chanparam = self.parent.channel(chanword) | |
290 | ||
291 | if target != self.nick: # message was sent to a channel | |
292 | chan = self.parent.channel(target) | |
293 | if not triggerused: | |
294 | if self.parent.haschanhook(target.lower()): | |
295 | for callback in self.parent.getchanhook(target.lower()): | |
296 | try: | |
297 | cbret = callback(self, user, chan, *pieces) | |
298 | except NotImplementedError: | |
299 | self.msg(user, "Command not implemented.") | |
300 | except: | |
301 | self.msg(user, "Command failed. Code: CBEXC%09.3f" % (time.time() % 100000)) | |
302 | self.__debug_cbexception("chanhook", user=user, target=target, msg=msg) | |
303 | return # not to bot, don't process! | |
304 | ||
305 | cmd = pieces[0].lower() | |
306 | rancmd = False | |
307 | if self.parent.hashook(cmd): | |
308 | for callback in self.parent.gethook(cmd): | |
309 | if chanparam is not None and (callback.needchan or callback.wantchan): | |
310 | chan = chanparam | |
311 | pieces.pop(1) | |
312 | if chan is None and callback.needchan: | |
313 | rancmd = True | |
314 | self.msg(user, "You need to specify a channel for that command.") | |
315 | elif user.glevel >= callback.reqglevel and (not callback.needchan or chan.levelof(user.auth) >= callback.reqclevel): | |
316 | rancmd = True | |
317 | try: | |
318 | cbret = callback(self, user, chan, target, *pieces[1:]) | |
319 | except NotImplementedError: | |
320 | self.msg(user, "Command not implemented.") | |
321 | except Exception: | |
322 | self.msg(user, "Command failed. Code: CBEXC%09.3f" % (time.time() % 100000)) | |
323 | self.__debug_cbexception("hook", user=user, target=target, msg=msg) | |
324 | except SystemExit as e: | |
325 | curs = self.parent.db.cursor() | |
326 | curs.execute("UPDATE bots SET connected = 0") | |
327 | curs.close() | |
328 | raise e | |
329 | else: | |
330 | rancmd = True | |
331 | self.msg(user, "I don't know that command.") | |
332 | if not rancmd: | |
333 | self.msg(user, "You don't have enough access to run that command.") | |
334 | ||
335 | def __debug_nomsg(self, target, msg): | |
336 | if int(self.parent.cfg.get('debug', 'nomsg', default=0)) == 1: | |
337 | self.conn.send("PRIVMSG %s :%09.3f \ 34\1f!!! NOMSG\1f\ 3 %r, %r" % (self.parent.cfg.get('debug', 'owner'), time.time() % 100000, target, msg)) | |
338 | self.log('!', "!!! NOMSG") | |
339 | # print "%09.3f %s [!] %s" % (time.time() % 100000, self.nick, "!!! NOMSG") | |
340 | __import__('traceback').print_stack() | |
341 | ||
342 | def msg(self, target, msg): | |
343 | if self.parent.cfg.getboolean('erebus', 'nofakelag'): return self.fastmsg(target, msg) | |
344 | cmd = self._formatmsg(target, msg) | |
345 | if self.conn.exceeded or self.conn.bytessent+len(cmd) >= self.conn.recvq: | |
346 | self.msgqueue.append(cmd) | |
347 | else: | |
348 | self.conn.send(cmd) | |
349 | self.conn.exceeded = True | |
350 | ||
351 | def slowmsg(self, target, msg): | |
352 | if self.parent.cfg.getboolean('erebus', 'nofakelag'): return self.fastmsg(target, msg) | |
353 | cmd = self._formatmsg(target, msg) | |
354 | if self.conn.exceeded or self.conn.bytessent+len(cmd) >= self.conn.recvq: | |
355 | self.slowmsgqueue.append(cmd) | |
356 | else: | |
357 | self.conn.send(cmd) | |
358 | self.conn.exceeded = True | |
359 | ||
360 | def fastmsg(self, target, msg): | |
361 | self.conn.send(self._formatmsg(target, msg)) | |
362 | self.conn.exceeded = True | |
363 | ||
364 | def _formatmsg(self, target, msg): | |
365 | if target is None or msg is None: | |
366 | return self.__debug_nomsg(target, msg) | |
367 | ||
368 | target = str(target) | |
369 | ||
370 | if target.startswith('#'): command = "PRIVMSG %s :%s" % (target, msg) | |
371 | else: command = "NOTICE %s :%s" % (target, msg) | |
372 | ||
373 | return command | |
374 | ||
375 | def _popmsg(self): | |
376 | self.makemsgtimer() | |
377 | self.conn.bytessent -= self.conn.recvq/3 | |
378 | if self.conn.bytessent < 0: self.conn.bytessent = 0 | |
379 | self.conn.exceeded = False | |
380 | ||
381 | try: | |
382 | cmd = self.msgqueue.popleft() | |
383 | if not self.conn.exceeded and self.conn.bytessent+len(cmd) < self.conn.recvq: | |
384 | self.conn.send(cmd) | |
385 | self.conn.exceeded = True | |
386 | else: raise IndexError | |
387 | except IndexError: | |
388 | try: | |
389 | cmd = self.slowmsgqueue.popleft() | |
390 | if not self.conn.exceeded and self.conn.bytessent+len(cmd) < self.conn.recvq: | |
391 | self.conn.send(cmd) | |
392 | self.conn.exceeded = True | |
393 | except IndexError: | |
394 | pass | |
395 | self.msgtimer.start() | |
396 | ||
397 | def makemsgtimer(self): | |
398 | self.msgtimer = threading.Timer(3, self._popmsg) | |
399 | self.msgtimer.daemon = True | |
400 | ||
401 | def join(self, chan): | |
402 | self.conn.send("JOIN %s" % (chan)) | |
403 | ||
404 | def part(self, chan): | |
405 | self.conn.send("PART %s" % (chan)) | |
406 | ||
407 | def quit(self, reason="Shutdown"): | |
408 | self.conn.send("QUIT :%s" % (reason)) | |
409 | ||
410 | def __str__(self): return self.nick | |
411 | def __repr__(self): return "<Bot %r>" % (self.nick) | |
412 | ||
413 | class BotConnection(object): | |
414 | def __init__(self, parent, bind, server, port): | |
415 | self.parent = parent | |
416 | self.buffer = '' | |
417 | self.socket = None | |
418 | ||
419 | self.bind = bind | |
420 | self.server = server | |
421 | self.port = int(port) | |
422 | ||
423 | self.state = 0 # 0=disconnected, 1=registering, 2=connected | |
424 | ||
425 | self.bytessent = 0 | |
426 | self.recvq = 500 | |
427 | self.exceeded = False | |
428 | ||
429 | def connect(self): | |
430 | self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) | |
431 | self.socket.bind((self.bind, 0)) | |
432 | self.socket.connect((self.server, self.port)) | |
433 | return True | |
434 | def register(self): | |
435 | if self.state == 0: | |
436 | self.send("NICK %s" % (self.parent.nick)) | |
437 | self.send("USER %s 0 * :%s" % (self.parent.user, self.parent.realname)) | |
438 | self.state = 1 | |
439 | return True | |
440 | ||
441 | def registered(self, done=False): | |
442 | if done: self.state = 2 | |
443 | return self.state == 2 | |
444 | ||
445 | def send(self, line): | |
446 | self.parent.log('O', line) | |
447 | # print "%09.3f %s [O] %s" % (time.time() % 100000, self.parent.nick, line) | |
448 | self.bytessent += len(line) | |
449 | self._write(line) | |
450 | ||
451 | def _write(self, line): | |
452 | self.socket.sendall(line+"\r\n") | |
453 | ||
454 | def read(self): | |
455 | self.buffer += self.socket.recv(8192) | |
456 | lines = [] | |
457 | ||
458 | while "\r\n" in self.buffer: | |
459 | pieces = self.buffer.split("\r\n", 1) | |
460 | # self.parent.log('I', pieces[0]) # replaced by statement in Bot.parse() | |
461 | # print "%09.3f %s [I] %s" % (time.time() % 100000, self.parent.nick, pieces[0]) | |
462 | lines.append(pieces[0]) | |
463 | self.buffer = pieces[1] | |
464 | ||
465 | return lines | |
466 | ||
467 | def __str__(self): return self.parent.nick | |
468 | def __repr__(self): return "<BotConnection %r (%r)>" % (self.socket.fileno(), self.parent.nick) |