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1 | #!/usr/bin/python | |
2 | # vim: fileencoding=utf-8 | |
3 | ||
4 | # Erebus IRC bot - Author: John Runyon | |
5 | # main startup code | |
6 | ||
7 | from __future__ import print_function | |
8 | ||
9 | import os, sys, select, time, traceback, random, gc | |
10 | import bot, config, ctlmod | |
11 | ||
12 | class Erebus(object): #singleton to pass around | |
13 | APIVERSION = 0 | |
14 | RELEASE = 0 | |
15 | ||
16 | bots = {} | |
17 | fds = {} | |
18 | numhandlers = {} | |
19 | msghandlers = {} | |
20 | chanhandlers = {} | |
21 | exceptionhandlers = [] # list of (Exception_class, handler_function) tuples | |
22 | users = {} | |
23 | chans = {} | |
24 | ||
25 | class User(object): | |
26 | def __init__(self, nick, auth=None): | |
27 | self.nick = nick | |
28 | if auth is None: | |
29 | self.auth = None | |
30 | else: | |
31 | self.auth = auth.lower() | |
32 | self.checklevel() | |
33 | ||
34 | self.chans = [] | |
35 | ||
36 | def bind_bot(self, bot): | |
37 | return main._BoundUser(self, bot) | |
38 | ||
39 | def msg(self, *args, **kwargs): | |
40 | main.randbot().msg(self, *args, **kwargs) | |
41 | def slowmsg(self, *args, **kwargs): | |
42 | main.randbot().slowmsg(self, *args, **kwargs) | |
43 | def fastmsg(self, *args, **kwargs): | |
44 | main.randbot().fastmsg(self, *args, **kwargs) | |
45 | ||
46 | def isauthed(self): | |
47 | return self.auth is not None | |
48 | ||
49 | def authed(self, auth): | |
50 | if auth == '0': self.auth = None | |
51 | else: self.auth = auth.lower() | |
52 | self.checklevel() | |
53 | ||
54 | def checklevel(self): | |
55 | if self.auth is None: | |
56 | self.glevel = -1 | |
57 | else: | |
58 | c = main.query("SELECT level FROM users WHERE auth = %s", (self.auth,)) | |
59 | if c: | |
60 | row = c.fetchone() | |
61 | if row is not None: | |
62 | self.glevel = row['level'] | |
63 | else: | |
64 | self.glevel = 0 | |
65 | else: | |
66 | self.glevel = 0 | |
67 | return self.glevel | |
68 | ||
69 | def setlevel(self, level, savetodb=True): | |
70 | if savetodb: | |
71 | if level != 0: | |
72 | c = main.query("REPLACE INTO users (auth, level) VALUES (%s, %s)", (self.auth, level)) | |
73 | else: | |
74 | c = main.query("DELETE FROM users WHERE auth = %s", (self.auth,)) | |
75 | if c == 0: # no rows affected | |
76 | c = True # is fine | |
77 | if c: | |
78 | self.glevel = level | |
79 | return True | |
80 | else: | |
81 | return False | |
82 | else: | |
83 | self.glevel = level | |
84 | return True | |
85 | ||
86 | def join(self, chan): | |
87 | if chan not in self.chans: self.chans.append(chan) | |
88 | def part(self, chan): | |
89 | try: | |
90 | self.chans.remove(chan) | |
91 | except: pass | |
92 | return len(self.chans) == 0 | |
93 | def quit(self): | |
94 | pass | |
95 | def nickchange(self, newnick): | |
96 | self.nick = newnick | |
97 | ||
98 | def __str__(self): return self.nick | |
99 | def __repr__(self): return "<User %r (%d)>" % (self.nick, self.glevel) | |
100 | ||
101 | class _BoundUser(object): | |
102 | def __init__(self, user, bot): | |
103 | self.__dict__['_bound_user'] = user | |
104 | self.__dict__['_bound_bot'] = bot | |
105 | def __getattr__(self, name): | |
106 | return getattr(self._bound_user, name) | |
107 | def __setattr__(self, name, value): | |
108 | setattr(self._bound_user, name, value) | |
109 | def msg(self, *args, **kwargs): | |
110 | self._bound_bot.msg(self._bound_user, *args, **kwargs) | |
111 | def slowmsg(self, *args, **kwargs): | |
112 | self._bound_bot.slowmsg(self._bound_user, *args, **kwargs) | |
113 | def fastmsg(self, *args, **kwargs): | |
114 | self._bound_bot.fastmsg(self._bound_user, *args, **kwargs) | |
115 | def __repr__(self): return "<_BoundUser %r %r>" % (self._bound_user, self._bound_bot) | |
116 | ||
117 | class Channel(object): | |
118 | def __init__(self, name, bot): | |
119 | self.name = name | |
120 | self.bot = bot | |
121 | self.levels = {} | |
122 | ||
123 | self.users = [] | |
124 | self.voices = [] | |
125 | self.ops = [] | |
126 | ||
127 | self.deleting = False # if true, the bot will remove cached records of this channel when the bot sees that it has left the channel | |
128 | ||
129 | c = main.query("SELECT user, level FROM chusers WHERE chan = %s", (self.name,)) | |
130 | if c: | |
131 | row = c.fetchone() | |
132 | while row is not None: | |
133 | self.levels[row['user']] = row['level'] | |
134 | row = c.fetchone() | |
135 | ||
136 | ||
137 | def msg(self, *args, **kwargs): | |
138 | self.bot.msg(self, *args, **kwargs) | |
139 | def slowmsg(self, *args, **kwargs): | |
140 | self.bot.slowmsg(self, *args, **kwargs) | |
141 | def fastmsg(self, *args, **kwargs): | |
142 | self.bot.fastmsg(self, *args, **kwargs) | |
143 | ||
144 | def levelof(self, auth): | |
145 | if auth is None: | |
146 | return 0 | |
147 | auth = auth.lower() | |
148 | if auth in self.levels: | |
149 | return self.levels[auth] | |
150 | else: | |
151 | return 0 | |
152 | ||
153 | def setlevel(self, auth, level, savetodb=True): | |
154 | auth = auth.lower() | |
155 | if savetodb: | |
156 | c = main.query("REPLACE INTO chusers (chan, user, level) VALUES (%s, %s, %s)", (self.name, auth, level)) | |
157 | if c: | |
158 | self.levels[auth] = level | |
159 | return True | |
160 | else: | |
161 | return False | |
162 | else: | |
163 | self.levels[auth] = level | |
164 | return True | |
165 | ||
166 | def userjoin(self, user, level=None): | |
167 | if user not in self.users: self.users.append(user) | |
168 | if level == 'op' and user not in self.ops: self.ops.append(user) | |
169 | if level == 'voice' and user not in self.voices: self.voices.append(user) | |
170 | def userpart(self, user): | |
171 | if user in self.ops: self.ops.remove(user) | |
172 | if user in self.voices: self.voices.remove(user) | |
173 | if user in self.users: self.users.remove(user) | |
174 | ||
175 | def userop(self, user): | |
176 | if user in self.users and user not in self.ops: self.ops.append(user) | |
177 | def uservoice(self, user): | |
178 | if user in self.users and user not in self.voices: self.voices.append(user) | |
179 | def userdeop(self, user): | |
180 | if user in self.ops: self.ops.remove(user) | |
181 | def userdevoice(self, user): | |
182 | if user in self.voices: self.voices.remove(user) | |
183 | ||
184 | def __str__(self): return self.name | |
185 | def __repr__(self): return "<Channel %r>" % (self.name) | |
186 | ||
187 | def __init__(self, cfg): | |
188 | self.mustquit = None | |
189 | self.starttime = time.time() | |
190 | self.cfg = cfg | |
191 | self.trigger = cfg.trigger | |
192 | if os.name == "posix": | |
193 | self.potype = "poll" | |
194 | self.po = select.poll() | |
195 | else: # f.e. os.name == "nt" (Windows) | |
196 | self.potype = "select" | |
197 | self.fdlist = [] | |
198 | ||
199 | def query(self, sql, parameters=[], noretry=False): | |
200 | # Callers use %s-style (paramstyle='format') placeholders in queries. | |
201 | # There's no provision for a literal '%s' present inside the query; stuff it in a parameter instead. | |
202 | if db_api.paramstyle == 'format' or db_api.paramstyle == 'pyformat': # mysql, postgresql | |
203 | # psycopg actually asks for a mapping with %(name)s style (pyformat) but it will accept %s style. | |
204 | pass | |
205 | elif db_api.paramstyle == 'qmark': # sqlite doesn't like %s style. | |
206 | parameters = [str(p) for p in parameters] | |
207 | sql = sql.replace('%s', '?') # hope that wasn't literal, oopsie | |
208 | ||
209 | log_noretry = '' | |
210 | if noretry: | |
211 | log_noretry = ', noretry=True' | |
212 | self.log("[SQL]", "?", "query(%r, %r%s)" % (sql, parameters, log_noretry)) | |
213 | ||
214 | try: | |
215 | curs = self.db.cursor() | |
216 | res = curs.execute(sql, parameters) | |
217 | if res: | |
218 | return curs | |
219 | else: | |
220 | return res | |
221 | except db_api.DataError as e: | |
222 | self.log("[SQL]", ".", "DB DataError: %r" % (e)) | |
223 | return False | |
224 | except db_api.Error as e: | |
225 | self.log("[SQL]", "!", "DB error! %r" % (e)) | |
226 | if not noretry: | |
227 | dbsetup() | |
228 | return self.query(sql, parameters, noretry=True) | |
229 | else: | |
230 | raise e | |
231 | ||
232 | def querycb(self, cb, *args, **kwargs): | |
233 | # TODO this should either get thrown out with getdb()/returndb(), or else be adjusted to make use of it. | |
234 | def run_query(): | |
235 | cb(self.query(*args, **kwargs)) | |
236 | threading.Thread(target=run_query).start() | |
237 | ||
238 | def newbot(self, nick, user, bind, authname, authpass, server, port, realname): | |
239 | if bind is None: bind = '' | |
240 | obj = bot.Bot(self, nick, user, bind, authname, authpass, server, port, realname) | |
241 | self.bots[nick.lower()] = obj | |
242 | ||
243 | def newfd(self, obj, fileno): | |
244 | self.fds[fileno] = obj | |
245 | if self.potype == "poll": | |
246 | self.po.register(fileno, select.POLLIN) | |
247 | elif self.potype == "select": | |
248 | self.fdlist.append(fileno) | |
249 | def delfd(self, fileno): | |
250 | del self.fds[fileno] | |
251 | if self.potype == "poll": | |
252 | self.po.unregister(fileno) | |
253 | elif self.potype == "select": | |
254 | self.fdlist.remove(fileno) | |
255 | ||
256 | def bot(self, name): #get Bot() by name (nick) | |
257 | return self.bots[name.lower()] | |
258 | def fd(self, fileno): #get Bot() by fd/fileno | |
259 | return self.fds[fileno] | |
260 | def randbot(self): #get Bot() randomly | |
261 | return self.bots[random.choice(list(self.bots.keys()))] | |
262 | ||
263 | def user(self, _nick, send_who=False, create=True): | |
264 | nick = _nick.lower() | |
265 | ||
266 | if send_who and (nick not in self.users or not self.users[nick].isauthed()): | |
267 | self.randbot().conn.send("WHO %s n%%ant,1" % (nick)) | |
268 | ||
269 | if nick in self.users: | |
270 | return self.users[nick] | |
271 | elif create: | |
272 | user = self.User(_nick) | |
273 | self.users[nick] = user | |
274 | return user | |
275 | else: | |
276 | return None | |
277 | def channel(self, name): #get Channel() by name | |
278 | if name.lower() in self.chans: | |
279 | return self.chans[name.lower()] | |
280 | else: | |
281 | return None | |
282 | ||
283 | def newchannel(self, bot, name): | |
284 | chan = self.Channel(name.lower(), bot) | |
285 | self.chans[name.lower()] = chan | |
286 | return chan | |
287 | ||
288 | def poll(self): | |
289 | timeout_seconds = 30 | |
290 | if self.potype == "poll": | |
291 | pollres = self.po.poll(timeout_seconds * 1000) | |
292 | return [fd for (fd, ev) in pollres] | |
293 | elif self.potype == "select": | |
294 | return select.select(self.fdlist, [], [], timeout_seconds)[0] | |
295 | ||
296 | def connectall(self): | |
297 | for bot in self.bots.values(): | |
298 | if bot.conn.state == 0: | |
299 | bot.connect() | |
300 | ||
301 | def module(self, name): | |
302 | return ctlmod.modules[name] | |
303 | ||
304 | def log(self, source, level, message): | |
305 | print("%09.3f %s [%s] %s" % (time.time() % 100000, source, level, message)) | |
306 | ||
307 | def getuserbyauth(self, auth): | |
308 | return [u for u in self.users.values() if u.auth == auth.lower()] | |
309 | ||
310 | def getdb(self): | |
311 | """Get a DB object. The object must be returned to the pool after us, using returndb(). This is intended for use from child threads. | |
312 | It should probably be treated as deprecated though. Where possible new modules should avoid using threads. | |
313 | In the future, timers will be provided (manipulating the timeout_seconds of the poll() method), and that should mostly be used in place of threading.""" | |
314 | return self.dbs.pop() | |
315 | ||
316 | def returndb(self, db): | |
317 | self.dbs.append(db) | |
318 | ||
319 | #bind functions | |
320 | def hook(self, word, handler): | |
321 | try: | |
322 | self.msghandlers[word].append(handler) | |
323 | except: | |
324 | self.msghandlers[word] = [handler] | |
325 | def unhook(self, word, handler): | |
326 | if word in self.msghandlers and handler in self.msghandlers[word]: | |
327 | self.msghandlers[word].remove(handler) | |
328 | def hashook(self, word): | |
329 | return word in self.msghandlers and len(self.msghandlers[word]) != 0 | |
330 | def gethook(self, word): | |
331 | return self.msghandlers[word] | |
332 | ||
333 | def hooknum(self, word, handler): | |
334 | try: | |
335 | self.numhandlers[word].append(handler) | |
336 | except: | |
337 | self.numhandlers[word] = [handler] | |
338 | def unhooknum(self, word, handler): | |
339 | if word in self.numhandlers and handler in self.numhandlers[word]: | |
340 | self.numhandlers[word].remove(handler) | |
341 | def hasnumhook(self, word): | |
342 | return word in self.numhandlers and len(self.numhandlers[word]) != 0 | |
343 | def getnumhook(self, word): | |
344 | return self.numhandlers[word] | |
345 | ||
346 | def hookchan(self, chan, handler): | |
347 | try: | |
348 | self.chanhandlers[chan].append(handler) | |
349 | except: | |
350 | self.chanhandlers[chan] = [handler] | |
351 | def unhookchan(self, chan, handler): | |
352 | if chan in self.chanhandlers and handler in self.chanhandlers[chan]: | |
353 | self.chanhandlers[chan].remove(handler) | |
354 | def haschanhook(self, chan): | |
355 | return chan in self.chanhandlers and len(self.chanhandlers[chan]) != 0 | |
356 | def getchanhook(self, chan): | |
357 | return self.chanhandlers[chan] | |
358 | ||
359 | def hookexception(self, exc, handler): | |
360 | self.exceptionhandlers.append((exc, handler)) | |
361 | def unhookexception(self, exc, handler): | |
362 | self.exceptionhandlers.remove((exc, handler)) | |
363 | def hasexceptionhook(self, exc): | |
364 | return any((True for x,h in self.exceptionhandlers if isinstance(exc, x))) | |
365 | def getexceptionhook(self, exc): | |
366 | return (h for x,h in self.exceptionhandlers if isinstance(exc, x)) | |
367 | ||
368 | ||
369 | def dbsetup(): | |
370 | main.db = None | |
371 | main.dbs = [] | |
372 | dbtype = cfg.get('erebus', 'dbtype', 'mysql') | |
373 | if dbtype == 'mysql': | |
374 | _dbsetup_mysql() | |
375 | elif dbtype == 'sqlite': | |
376 | _dbsetup_sqlite() | |
377 | else: | |
378 | main.log('*', '!', 'Unknown dbtype in config: %s' % (dbtype)) | |
379 | ||
380 | def _dbsetup_mysql(): | |
381 | global db_api | |
382 | import MySQLdb as db_api, MySQLdb.cursors | |
383 | for i in range(cfg.get('erebus', 'num_db_connections', 2)-1): | |
384 | main.dbs.append(db_api.connect(host=cfg.dbhost, user=cfg.dbuser, passwd=cfg.dbpass, db=cfg.dbname, cursorclass=MySQLdb.cursors.DictCursor)) | |
385 | main.db = db_api.connect(host=cfg.dbhost, user=cfg.dbuser, passwd=cfg.dbpass, db=cfg.dbname, cursorclass=MySQLdb.cursors.DictCursor) | |
386 | ||
387 | def _dbsetup_sqlite(): | |
388 | global db_api | |
389 | import sqlite3 as db_api | |
390 | for i in range(cfg.get('erebus', 'num_db_connections', 2)): | |
391 | main.db = db_api.connect(cfg.dbhost) | |
392 | main.db.row_factory = db_api.Row | |
393 | main.db.isolation_level = None | |
394 | main.dbs.append(main.db) | |
395 | ||
396 | def setup(): | |
397 | global cfg, main | |
398 | ||
399 | cfg = config.Config('bot.config') | |
400 | ||
401 | if cfg.getboolean('debug', 'gc'): | |
402 | gc.set_debug(gc.DEBUG_LEAK) | |
403 | ||
404 | pidfile = open(cfg.pidfile, 'w') | |
405 | pidfile.write(str(os.getpid())) | |
406 | pidfile.close() | |
407 | ||
408 | main = Erebus(cfg) | |
409 | dbsetup() | |
410 | ||
411 | autoloads = [mod for mod, yes in cfg.items('autoloads') if int(yes) == 1] | |
412 | for mod in autoloads: | |
413 | ctlmod.load(main, mod) | |
414 | ||
415 | c = main.query("SELECT nick, user, bind, authname, authpass FROM bots WHERE active = 1") | |
416 | if c: | |
417 | rows = c.fetchall() | |
418 | c.close() | |
419 | for row in rows: | |
420 | main.newbot(row['nick'], row['user'], row['bind'], row['authname'], row['authpass'], cfg.host, cfg.port, cfg.realname) | |
421 | main.connectall() | |
422 | ||
423 | def loop(): | |
424 | poready = main.poll() | |
425 | for fileno in poready: | |
426 | try: | |
427 | data = main.fd(fileno).getdata() | |
428 | except: | |
429 | main.log('*', '!', 'Super-mega-emergency: getdata raised exception for socket %d' % (fileno)) | |
430 | traceback.print_exc() | |
431 | data = None | |
432 | if data is None: | |
433 | main.fd(fileno).close() | |
434 | else: | |
435 | for line in data: | |
436 | if cfg.getboolean('debug', 'io'): | |
437 | main.log(str(main.fd(fileno)), 'I', line) | |
438 | try: | |
439 | main.fd(fileno).parse(line) | |
440 | except: | |
441 | main.log('*', '!', 'Super-mega-emergency: parse raised exception for socket %d data %r' % (fileno, line)) | |
442 | traceback.print_exc() | |
443 | if main.mustquit is not None: | |
444 | main.log('*', '!', 'Core exiting due to: %s' % (main.mustquit)) | |
445 | raise main.mustquit | |
446 | ||
447 | if __name__ == '__main__': | |
448 | try: os.rename('logfile', 'oldlogs/%s' % (time.time())) | |
449 | except: pass | |
450 | sys.stdout = open('logfile', 'w', 1) | |
451 | sys.stderr = sys.stdout | |
452 | setup() | |
453 | while True: loop() |