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1 | #!/usr/bin/python | |
2 | # vim: fileencoding=utf-8 | |
3 | ||
4 | # Erebus IRC bot - Author: John Runyon | |
5 | # "Bot" and "BotConnection" classes (handling a specific "arm") | |
6 | ||
7 | import os, random, socket, struct, sys, threading, time, traceback, fcntl | |
8 | from collections import deque | |
9 | ||
10 | if sys.version_info.major < 3: | |
11 | timerbase = threading._Timer | |
12 | stringbase = basestring | |
13 | else: | |
14 | timerbase = threading.Timer | |
15 | stringbase = str | |
16 | ||
17 | class MyTimer(timerbase): | |
18 | def __init__(self, *args, **kwargs): | |
19 | timerbase.__init__(self, *args, **kwargs) | |
20 | self.daemon = True | |
21 | ||
22 | if sys.version_info.major < 3: | |
23 | stringbase = basestring | |
24 | else: | |
25 | stringbase = str | |
26 | ||
27 | #bots = {'erebus': bot.Bot(nick='Erebus', user='erebus', bind='', server='irc.quakenet.org', port=6667, realname='Erebus')} | |
28 | class Bot(object): | |
29 | def __init__(self, parent, nick, user, bind, authname, authpass, server, port, realname): | |
30 | self.maxlen = 510 | |
31 | ||
32 | self.parent = parent | |
33 | self.nick = nick | |
34 | self.permnick = nick | |
35 | self.user = user | |
36 | self.realname = realname | |
37 | ||
38 | self.authname = authname | |
39 | self.authpass = authpass | |
40 | ||
41 | self.connecttime = 0 # time at which we received numeric 001 | |
42 | self.server = server # the address we try to (re-)connect to | |
43 | self.port = port | |
44 | self.servername = server # the name of the server we got connected to | |
45 | ||
46 | curs = self.parent.query("SELECT chname FROM chans WHERE bot = %s AND active = 1", (self.permnick,)) | |
47 | if curs: | |
48 | chansres = curs.fetchall() | |
49 | curs.close() | |
50 | self.chans = [self.parent.newchannel(self, row['chname']) for row in chansres] | |
51 | else: | |
52 | self.chans = [] | |
53 | ||
54 | self.conn = BotConnection(self, bind, server, port) | |
55 | ||
56 | self.lastreceived = time.time() #time we last received a line from the server | |
57 | self.watchdog() | |
58 | ||
59 | self.msgqueue = deque() | |
60 | self.slowmsgqueue = deque() | |
61 | self._makemsgtimer() | |
62 | self._msgtimer.start() | |
63 | self.joined_chans = False | |
64 | ||
65 | def __del__(self): | |
66 | try: | |
67 | curs = self.parent.query("UPDATE bots SET connected = 0 WHERE nick = %s", (self.permnick,)) | |
68 | curs.close() | |
69 | except: pass | |
70 | ||
71 | def watchdog(self): | |
72 | if time.time() > int(self.parent.cfg.get('watchdog', 'maxtime', default=300))+self.lastreceived: | |
73 | self.parse("ERROR :Fake-error from watchdog timer.") | |
74 | return | |
75 | if self.conn.registered(): | |
76 | self.conn.send("PING :%s" % (time.time())) | |
77 | self._checknick() | |
78 | watchdogtimer = MyTimer(int(self.parent.cfg.get('watchdog', 'interval', default=30)), self.watchdog) | |
79 | watchdogtimer.start() | |
80 | ||
81 | def log(self, *args, **kwargs): | |
82 | self.parent.log(self.nick, *args, **kwargs) | |
83 | ||
84 | def connect(self): | |
85 | self.log('!', "Connecting") | |
86 | if self.conn.connect(): | |
87 | self.log('!', "Connected") | |
88 | self.parent.newfd(self, self.conn.socket.fileno()) | |
89 | ||
90 | def getdata(self): | |
91 | try: | |
92 | recvd = self.conn.read() | |
93 | self.lastreceived = time.time() | |
94 | return recvd | |
95 | except EOFError as e: | |
96 | return [":%s ERROR :%s%r" % (self.nick, e.__class__.__name__, e.args)] | |
97 | ||
98 | def _checknick(self): # check if we're using the right nick, try changing | |
99 | if self.nick != self.permnick and self.conn.registered(): | |
100 | self.conn.send("NICK %s" % (self.permnick)) | |
101 | ||
102 | def parse(self, line): | |
103 | pieces = line.split() | |
104 | ||
105 | if pieces[0][0] == ":": | |
106 | numeric = pieces[1] | |
107 | else: | |
108 | numeric = pieces[0] | |
109 | ||
110 | # dispatch dict | |
111 | dispatch = { | |
112 | 'NOTICE': self._gotconnected, | |
113 | '001': self._got001, | |
114 | '004': self._got004, | |
115 | '376': self._gotRegistered, | |
116 | '422': self._gotRegistered, | |
117 | 'PRIVMSG': self._gotprivmsg, | |
118 | '353': self._got353, #NAMES | |
119 | '354': self._got354, #WHO | |
120 | '396': self._gotHiddenHost, # hidden host has been set | |
121 | '433': self._got433, #nick in use | |
122 | '437': self._got433, #nick protected | |
123 | 'JOIN': self._gotjoin, | |
124 | 'PART': self._gotpart, | |
125 | 'KICK': self._gotkick, | |
126 | 'QUIT': self._gotquit, | |
127 | 'NICK': self._gotnick, | |
128 | 'MODE': self._gotmode, | |
129 | 'PING': self._gotping, | |
130 | 'ERROR': self._goterror, | |
131 | } | |
132 | ||
133 | if self.parent.hasnumhook(numeric): | |
134 | hooks = self.parent.getnumhook(numeric) | |
135 | for callback in hooks: | |
136 | try: | |
137 | callback(self, line) | |
138 | except Exception: | |
139 | self._cbexception("numhook", line) | |
140 | ||
141 | if numeric in dispatch: | |
142 | dispatch[numeric](pieces) | |
143 | ||
144 | def _gotconnected(self, pieces): | |
145 | if not self.conn.registered(): | |
146 | self.conn.register() | |
147 | def _gotping(self, pieces): | |
148 | self.conn.send("PONG %s" % (pieces[1])) | |
149 | self._checknick() | |
150 | def _goterror(self, pieces): | |
151 | # TODO: better handling, just reconnect that single bot | |
152 | error = ' '.join(pieces) | |
153 | try: | |
154 | raise Exception(error) | |
155 | except Exception as e: | |
156 | self.parent.mustquit = e | |
157 | try: | |
158 | self.quit("Error detected: %s" % (error)) | |
159 | except: pass | |
160 | try: | |
161 | curs = self.parent.query("UPDATE bots SET connected = 0") | |
162 | curs.close() | |
163 | except: pass | |
164 | self.log('!', 'Bot exiting due to: %s' % (error)) | |
165 | def _got001(self, pieces): | |
166 | # We wait until the end of MOTD instead to consider ourselves registered, but consider uptime as of 001 | |
167 | self.connecttime = time.time() | |
168 | def _got004(self, pieces): | |
169 | self.servername = pieces[3] | |
170 | def _gotRegistered(self, pieces): | |
171 | self.conn.registered(True) | |
172 | ||
173 | curs = self.parent.query("UPDATE bots SET connected = 1 WHERE nick = %s", (self.permnick,)) | |
174 | if curs: curs.close() | |
175 | ||
176 | self.conn.send("MODE %s +x" % (pieces[2])) | |
177 | if self.authname is not None and self.authpass is not None: | |
178 | self.conn.send(self.parent.cfg.get('erebus', 'auth_command', "AUTH %s %s") % (self.authname, self.authpass)) | |
179 | if not self.parent.cfg.getboolean('erebus', 'wait_for_hidden_host'): | |
180 | for c in self.chans: | |
181 | self.join(c.name) | |
182 | self.joined_chans = True | |
183 | def _gotHiddenHost(self, pieces): | |
184 | if not self.joined_chans and self.parent.cfg.getboolean('erebus', 'wait_for_hidden_host'): | |
185 | for c in self.chans: | |
186 | self.join(c.name) | |
187 | self.joined_chans = True | |
188 | def _gotprivmsg(self, pieces): | |
189 | nick = pieces[0].split('!')[0][1:] | |
190 | user = self.parent.user(nick) | |
191 | target = pieces[2] | |
192 | msg = ' '.join(pieces[3:])[1:] | |
193 | self.parsemsg(user, target, msg) | |
194 | def _got353(self, pieces): | |
195 | prefixes = {'@': 'op', '+': 'voice'} | |
196 | chan = self.parent.channel(pieces[4]) | |
197 | names = pieces[5:] | |
198 | names[0] = names[0][1:] #remove colon | |
199 | for n in names: | |
200 | if n[0] in prefixes: | |
201 | user = self.parent.user(n[1:]) | |
202 | chan.userjoin(user, prefixes[n[0]]) | |
203 | else: | |
204 | user = self.parent.user(n) | |
205 | chan.userjoin(user) | |
206 | user.join(chan) | |
207 | def _got354(self, pieces): | |
208 | qt = int(pieces[3]) | |
209 | if qt < 3: | |
210 | nick, auth = pieces[4:6] | |
211 | chan = None | |
212 | else: | |
213 | chan, nick, auth = pieces[4:7] | |
214 | chan = self.parent.channel(chan) | |
215 | user = self.parent.user(nick) | |
216 | user.authed(auth) | |
217 | ||
218 | if chan is not None: | |
219 | user.join(chan) | |
220 | chan.userjoin(user) | |
221 | ||
222 | if qt == 2: # triggered by !auth | |
223 | if user.isauthed(): | |
224 | if user.glevel > 0: | |
225 | self.msg(nick, "You are now known as #%s (access level: %s)" % (auth, user.glevel)) | |
226 | else: | |
227 | self.msg(nick, "You are now known as #%s (not staff)" % (auth)) | |
228 | else: | |
229 | self.msg(nick, "I tried, but you're not authed!") | |
230 | def _got433(self, pieces): | |
231 | if not self.conn.registered(): #we're trying to connect | |
232 | newnick = "%s%d" % (self.nick, random.randint(111, 999)) | |
233 | self.conn.send("NICK %s" % (newnick)) | |
234 | self.nick = newnick | |
235 | def _gotjoin(self, pieces): | |
236 | nick = pieces[0].split('!')[0][1:] | |
237 | chan = self.parent.channel(pieces[2]) | |
238 | ||
239 | if nick == self.nick: | |
240 | self.conn.send("WHO %s c%%cant,3" % (chan)) | |
241 | else: | |
242 | user = self.parent.user(nick, send_who=True) | |
243 | chan.userjoin(user) | |
244 | user.join(chan) | |
245 | def _clientLeft(self, nick, chan): | |
246 | if nick == self.nick: | |
247 | for u in chan.users: | |
248 | if u.nick != self.nick: | |
249 | self._clientLeft(u.nick, chan) | |
250 | else: | |
251 | user = self.parent.user(nick) | |
252 | gone = user.part(chan) | |
253 | chan.userpart(user) | |
254 | if gone: | |
255 | user.quit() | |
256 | del self.parent.users[nick.lower()] | |
257 | def _gotpart(self, pieces): | |
258 | nick = pieces[0].split('!')[0][1:] | |
259 | chan = self.parent.channel(pieces[2]) | |
260 | self._clientLeft(nick, chan) | |
261 | def _gotkick(self, pieces): | |
262 | nick = pieces[3] | |
263 | chan = self.parent.channel(pieces[2]) | |
264 | self._clientLeft(nick, chan) | |
265 | def _gotquit(self, pieces): | |
266 | nick = pieces[0].split('!')[0][1:] | |
267 | if nick != self.nick: | |
268 | for chan in self.parent.user(nick).chans: | |
269 | chan.userpart(self.parent.user(nick)) | |
270 | self.parent.user(nick).quit() | |
271 | del self.parent.users[nick.lower()] | |
272 | def _gotnick(self, pieces): | |
273 | oldnick = pieces[0].split('!')[0][1:] | |
274 | newnick = pieces[2][1:] | |
275 | if oldnick == self.nick: | |
276 | self.nick = newnick | |
277 | else: | |
278 | if newnick.lower() != oldnick.lower(): | |
279 | self.parent.users[newnick.lower()] = self.parent.users[oldnick.lower()] | |
280 | del self.parent.users[oldnick.lower()] | |
281 | self.parent.users[newnick.lower()].nickchange(newnick) | |
282 | def _gotmode(self, pieces): | |
283 | source = pieces[0].split('!')[0][1:] | |
284 | chan = pieces[2] | |
285 | if not chan.startswith("#"): return | |
286 | chan = self.parent.channel(pieces[2]) | |
287 | mode = pieces[3] | |
288 | args = pieces[4:] | |
289 | ||
290 | adding = True | |
291 | for c in mode: | |
292 | if c == '+': | |
293 | adding = True | |
294 | elif c == '-': | |
295 | adding = False | |
296 | elif c == 'o': | |
297 | if adding: | |
298 | chan.userop(self.parent.user(args.pop(0))) | |
299 | else: | |
300 | chan.userdeop(self.parent.user(args.pop(0))) | |
301 | elif c == 'v': | |
302 | if adding: | |
303 | chan.uservoice(self.parent.user(args.pop(0))) | |
304 | else: | |
305 | chan.userdevoice(self.parent.user(args.pop(0))) | |
306 | else: | |
307 | pass # don't care about other modes | |
308 | ||
309 | def _cbexception(self, source, *args, chained=False, **kwargs): | |
310 | if not chained: # skip hooks if we were caused by a hook | |
311 | exc = sys.exception() | |
312 | if self.parent.hasexceptionhook(exc): | |
313 | for callback in self.parent.getexceptionhook(exc): | |
314 | try: | |
315 | callback(self, exc, source, *args, **kwargs) | |
316 | except Exception: | |
317 | self._cbexception('exceptionhook', chained=True, module=callback.__module__, function=callback.__name__, underlying=(source, args, kwargs)) | |
318 | if self.parent.cfg.getboolean('debug', 'cbexc'): | |
319 | self.conn.send("PRIVMSG %s :%09.3f \ 34\1f!!! CBEXC\1f\ 3 %s" % (self.parent.cfg.get('debug', 'owner'), time.time() % 100000, source)) | |
320 | traceback.print_exc(chain=not chained) | |
321 | self.log('!', "CBEXC %s %r %r" % (source, args, kwargs)) | |
322 | ||
323 | ||
324 | def parsemsg(self, user, target, msg): | |
325 | if user.glevel <= -2: return # short circuit if user is IGNORED | |
326 | chan = None | |
327 | chanparam = None # was the channel specified as part of the command? | |
328 | if len(msg) == 0: | |
329 | return | |
330 | ||
331 | if target == self.nick and msg.startswith("\001"): #ctcp | |
332 | msg = msg.strip("\001") | |
333 | if msg: | |
334 | pieces = msg.split() | |
335 | if pieces[0] == "CLIENTINFO": | |
336 | self.msg(user, "\001CLIENTINFO VERSION PING\001") | |
337 | elif pieces[0] == "VERSION": | |
338 | self.msg(user, "\001VERSION Erebus v%d.%d - http://jfr.im/git/erebus.git\001" % (self.parent.APIVERSION, self.parent.RELEASE)) | |
339 | elif pieces[0] == "PING": | |
340 | if len(pieces) > 1: | |
341 | self.msg(user, "\001PING %s\001" % (' '.join(pieces[1:]))) | |
342 | else: | |
343 | self.msg(user, "\001PING\001") | |
344 | return | |
345 | ||
346 | triggerused = msg.startswith(self.parent.trigger) | |
347 | if triggerused: msg = msg[len(self.parent.trigger):] | |
348 | pieces = msg.split() | |
349 | ||
350 | if len(pieces) == 0: | |
351 | return | |
352 | ||
353 | if target != self.nick: # message was sent to a channel | |
354 | try: | |
355 | if pieces[0][:-1].lower() == self.nick.lower() and (pieces[0][-1] == ":" or pieces[0][-1] == ","): | |
356 | pieces.pop(0) # command actually starts with next word | |
357 | if len(pieces) == 0: # is there still anything left? | |
358 | return | |
359 | msg = ' '.join(pieces) | |
360 | triggerused = True | |
361 | except IndexError: | |
362 | return # "message" is empty | |
363 | ||
364 | if len(pieces) > 1: | |
365 | chanword = pieces[1] | |
366 | if chanword.startswith('#'): | |
367 | chanparam = self.parent.channel(chanword) | |
368 | ||
369 | if target != self.nick: # message was sent to a channel | |
370 | chan = self.parent.channel(target) | |
371 | if not triggerused: | |
372 | if self.parent.haschanhook(target.lower()): | |
373 | for callback in self.parent.getchanhook(target.lower()): | |
374 | try: | |
375 | cbret = callback(self, user, chan, *pieces) | |
376 | if isinstance(cbret, stringbase): | |
377 | self.reply(target, user, cbret) | |
378 | except: | |
379 | self.msg(user, "Command failed. Code: CBEXC%09.3f" % (time.time() % 100000)) | |
380 | self._cbexception("chanhook", user=user, target=target, msg=msg) | |
381 | return # not to bot, don't process! | |
382 | ||
383 | cmd = pieces[0].lower() | |
384 | rancmd = False | |
385 | if self.parent.hashook(cmd): | |
386 | for callback in self.parent.gethook(cmd): | |
387 | if chanparam is not None and (callback.needchan or callback.wantchan): | |
388 | chan = chanparam | |
389 | pieces.pop(1) | |
390 | if chan is None and callback.needchan: | |
391 | rancmd = True | |
392 | self.msg(user, "You need to specify a channel for that command.") | |
393 | elif user.glevel >= callback.reqglevel and (not callback.needchan or chan.levelof(user.auth) >= callback.reqclevel): | |
394 | rancmd = True | |
395 | try: | |
396 | cbret = callback(self, user, chan, target, *pieces[1:]) | |
397 | if isinstance(cbret, stringbase): | |
398 | self.reply(target, user, cbret) | |
399 | except Exception: | |
400 | self.msg(user, "Command failed. Code: CBEXC%09.3f" % (time.time() % 100000)) | |
401 | self._cbexception("hook", user=user, target=target, msg=msg) | |
402 | except SystemExit as e: | |
403 | self.parent.mustquit = e | |
404 | try: | |
405 | curs = self.parent.query("UPDATE bots SET connected = 0") | |
406 | curs.close() | |
407 | except: pass | |
408 | raise e | |
409 | else: | |
410 | rancmd = True | |
411 | self.msg(user, "I don't know that command.") | |
412 | if not rancmd: | |
413 | self.msg(user, "You don't have enough access to run that command.") | |
414 | ||
415 | def __debug_nomsg(self, target, msg): | |
416 | if self.parent.cfg.getboolean('debug', 'nomsg'): | |
417 | 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)) | |
418 | self.log('!', "!!! NOMSG") | |
419 | # print "%09.3f %s [!] %s" % (time.time() % 100000, self.nick, "!!! NOMSG") | |
420 | traceback.print_stack() | |
421 | ||
422 | ||
423 | def reply(self, chan, user, msg): | |
424 | if chan is not None and (isinstance(chan, self.parent.Channel) or (isinstance(chan, stringbase) and chan[0] == "#")): | |
425 | self.msg(chan, "%s: %s" % (user, msg)) | |
426 | else: | |
427 | self.msg(user, msg) | |
428 | ||
429 | """ | |
430 | Does the work for msg/slowmsg/fastmsg. Uses the append_callback to append to the correct queue. | |
431 | ||
432 | In the case of fastmsg, self.conn.exceeded may be True, however, in this case append_callback=self.conn.send, so it will still be sent immediately. | |
433 | """ | |
434 | def _msg(self, target, msg, truncate, append_callback, msgtype): | |
435 | if self.parent.cfg.getboolean('erebus', 'nofakelag'): append_callback = self.conn.send | |
436 | ||
437 | cmd = self._formatmsg(target, msg, msgtype) | |
438 | # The max length is much shorter than conn.maxlen (510) because of the length the server adds on about the source (us). | |
439 | # If you know your hostmask, you can of course figure the exact length, but it's very difficult to reliably know your hostmask. | |
440 | maxlen = self.maxmsglen() | |
441 | if len(cmd) > maxlen: | |
442 | if not truncate: | |
443 | return False | |
444 | else: | |
445 | cmd = cmd[:maxlen] | |
446 | ||
447 | if self.conn.exceeded or self.conn.bytessent+len(cmd) >= self.conn.recvq: | |
448 | append_callback(cmd) | |
449 | else: | |
450 | self.conn.send(cmd) | |
451 | ||
452 | self.conn.exceeded = True | |
453 | return True | |
454 | ||
455 | def msg(self, target, msg, truncate=False, *, msgtype=None): | |
456 | """msgtype must be a valid IRC command, i.e. NOTICE or PRIVMSG; or leave as None to use default""" | |
457 | return self._msg(target, msg, truncate, self.msgqueue.append, msgtype) | |
458 | ||
459 | def slowmsg(self, target, msg, truncate=False, *, msgtype=None): | |
460 | return self._msg(target, msg, truncate, self.slowmsgqueue.append, msgtype) | |
461 | ||
462 | def fastmsg(self, target, msg, truncate=False, *, msgtype=None): | |
463 | return self._msg(target, msg, truncate, self.conn.send, msgtype) | |
464 | ||
465 | def _formatmsg(self, target, msg, msgtype): | |
466 | if target is None or msg is None: | |
467 | return self.__debug_nomsg(target, msg) | |
468 | ||
469 | target = str(target) | |
470 | ||
471 | if msgtype is not None: command = "%s %s :%s" % (msgtype, target, msg) | |
472 | elif target.startswith('#'): command = "PRIVMSG %s :%s" % (target, msg) | |
473 | else: command = "NOTICE %s :%s" % (target, msg) | |
474 | ||
475 | return command | |
476 | ||
477 | def _popmsg(self): | |
478 | self._makemsgtimer() | |
479 | self.conn.bytessent -= self.conn.recvq/3 | |
480 | if self.conn.bytessent < 0: self.conn.bytessent = 0 | |
481 | self.conn.exceeded = True | |
482 | ||
483 | cmd = None | |
484 | try: | |
485 | cmd = self.msgqueue.popleft() | |
486 | except IndexError: | |
487 | try: | |
488 | cmd = self.slowmsgqueue.popleft() | |
489 | except IndexError: | |
490 | pass | |
491 | ||
492 | if cmd is not None: | |
493 | if self.conn.bytessent+len(cmd) > self.conn.recvq: # If it's too long | |
494 | if len(cmd) > self.conn.recvq: # Is the command itself somehow over max length??? | |
495 | self._msgtimer.start() | |
496 | raise ValueError('Somehow a command that was too long made it into the message queue. Uhoh!', cmd) | |
497 | # Discard the message. | |
498 | self.msgqueue.appendleft(cmd) # Phew, we've just sent too much recently. Put it (back) on the (primary) queue. | |
499 | else: | |
500 | self.conn.send(cmd) | |
501 | ||
502 | self._msgtimer.start() | |
503 | ||
504 | def _makemsgtimer(self): | |
505 | self._msgtimer = MyTimer(3, self._popmsg) | |
506 | ||
507 | def join(self, chan): | |
508 | self.conn.send("JOIN %s" % (chan)) | |
509 | ||
510 | def part(self, chan): | |
511 | self.conn.send("PART %s" % (chan)) | |
512 | ||
513 | def quit(self, reason="Shutdown"): | |
514 | self.conn.send("QUIT :%s" % (reason)) | |
515 | ||
516 | def maxmsglen(self): | |
517 | return ( | |
518 | self.maxlen | |
519 | - 63 # max hostname len | |
520 | - 11 # max ident len | |
521 | - 3 # the symbols in :nick!user@host | |
522 | - len(self.nick) | |
523 | ) | |
524 | ||
525 | def __str__(self): return self.nick | |
526 | def __repr__(self): return "<Bot %r>" % (self.nick) | |
527 | ||
528 | class BotConnection(object): | |
529 | def __init__(self, parent, bind, server, port): | |
530 | self.parent = parent | |
531 | self.buffer = bytearray() | |
532 | self.socket = None | |
533 | ||
534 | self.bind = bind | |
535 | self.server = server | |
536 | self.port = int(port) | |
537 | ||
538 | self.state = 0 # 0=disconnected, 1=registering, 2=connected | |
539 | ||
540 | self.bytessent = 0 | |
541 | self.recvq = 510 # How much we can send per period | |
542 | self.exceeded = False | |
543 | self._nowrite = False | |
544 | ||
545 | def connect(self): | |
546 | if self.parent.parent.cfg.getboolean('erebus', 'tls'): | |
547 | import ssl | |
548 | undersocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) | |
549 | context = ssl.create_default_context() | |
550 | self.socket = context.wrap_socket(undersocket, server_hostname=self.server) | |
551 | else: | |
552 | self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) | |
553 | self.socket.setsockopt(socket.SOL_TCP, socket.TCP_NODELAY, 1) # Does Python make SOL_TCP portable? Who knows, it's not documented, and it appears to come from the _socket C lib. | |
554 | self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_LINGER, struct.pack('ii', 0, 0)) | |
555 | self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1) | |
556 | self.socket.bind((self.bind, 0)) | |
557 | self._write_oidentd() | |
558 | self.socket.connect((self.server, self.port)) | |
559 | return True | |
560 | def register(self): | |
561 | if self.state == 0: | |
562 | pss = self.parent.parent.cfg.get('erebus', 'pass') | |
563 | if pss: | |
564 | self.send("PASS %s" % (pss)) | |
565 | self.send("NICK %s" % (self.parent.nick)) | |
566 | self.send("USER %s 0 * :%s" % (self.parent.user, self.parent.realname)) | |
567 | self.state = 1 | |
568 | return True | |
569 | ||
570 | def registered(self, done=False): | |
571 | if done: | |
572 | self.state = 2 | |
573 | self._unwrite_oidentd() | |
574 | return self.state == 2 | |
575 | ||
576 | def send(self, line): | |
577 | if not self._nowrite: | |
578 | if self.parent.parent.cfg.getboolean('debug', 'io'): | |
579 | self.parent.log('O', line) | |
580 | self.bytessent += len(line) | |
581 | try: | |
582 | self._write(line) | |
583 | except socket.error as e: | |
584 | self._nowrite = True | |
585 | self.parent._goterror(repr(e)) | |
586 | else: | |
587 | if self.parent.parent.cfg.getboolean('debug', 'io'): | |
588 | self.parent.log('X', line) | |
589 | ||
590 | def _write(self, line): | |
591 | self.socket.sendall(line.encode('utf-8', 'surrogateescape')+b"\r\n") | |
592 | ||
593 | def _getsockerr(self): | |
594 | try: # SO_ERROR might not exist on all platforms | |
595 | return self.socket.getsockopt(socket.SOL_SOCKET, socket.SO_ERROR) | |
596 | except: | |
597 | return None | |
598 | ||
599 | def read(self): | |
600 | recvd = self.socket.recv(8192) | |
601 | if recvd == b"": | |
602 | raise EOFError("socket.recv returned empty", self.parent.nick, self._getsockerr()) | |
603 | self.buffer += recvd | |
604 | lines = [] | |
605 | ||
606 | while b"\r\n" in self.buffer: | |
607 | pieces = self.buffer.split(b"\r\n", 1) | |
608 | lines.append(pieces[0].decode('utf-8', 'backslashreplace')) | |
609 | self.buffer = pieces[1] | |
610 | ||
611 | return lines | |
612 | ||
613 | def _format_oidentd(self): | |
614 | ident = self.parent.user | |
615 | fport = self.parent.port | |
616 | from_ = self.bind | |
617 | lport = self.socket.getsockname()[1] | |
618 | if from_: | |
619 | return 'fport %s from %s lport %s { reply "%s" }\n' % (fport, from_, lport, ident) | |
620 | else: | |
621 | return 'fport %s lport %s { reply "%s" }\n' % (fport, lport, ident) | |
622 | def _write_oidentd(self): | |
623 | path = self.parent.parent.cfg.get('erebus', 'oidentd_path') | |
624 | if path is not None: | |
625 | with open(path, 'a') as fh: | |
626 | fcntl.lockf(fh, fcntl.LOCK_EX) | |
627 | fh.write(self._format_oidentd()) | |
628 | fcntl.lockf(fh, fcntl.LOCK_UN) | |
629 | def _unwrite_oidentd(self): | |
630 | path = self.parent.parent.cfg.get('erebus', 'oidentd_path') | |
631 | if path is not None: | |
632 | with open(path, 'r+') as fh: | |
633 | fcntl.lockf(fh, fcntl.LOCK_EX) | |
634 | data = fh.read() | |
635 | newdata = data.replace(self._format_oidentd(), '') | |
636 | fh.seek(0) | |
637 | fh.write(newdata) | |
638 | fh.truncate() | |
639 | fcntl.lockf(fh, fcntl.LOCK_UN) | |
640 | ||
641 | def __str__(self): return self.parent.nick | |
642 | def __repr__(self): return "<BotConnection %r (%r)>" % (self.socket.fileno(), self.parent.nick) |