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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, MySQLdb, MySQLdb.cursors, 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 msg(self, *args, **kwargs): | |
37 | main.randbot().msg(self, *args, **kwargs) | |
38 | def slowmsg(self, *args, **kwargs): | |
39 | main.randbot().slowmsg(self, *args, **kwargs) | |
40 | def fastmsg(self, *args, **kwargs): | |
41 | main.randbot().fastmsg(self, *args, **kwargs) | |
42 | ||
43 | def isauthed(self): | |
44 | return self.auth is not None | |
45 | ||
46 | def authed(self, auth): | |
47 | if auth == '0': self.auth = None | |
48 | else: self.auth = auth.lower() | |
49 | self.checklevel() | |
50 | ||
51 | def checklevel(self): | |
52 | if self.auth is None: | |
53 | self.glevel = -1 | |
54 | else: | |
55 | c = main.query("SELECT level FROM users WHERE auth = %s", (self.auth,)) | |
56 | if c: | |
57 | row = c.fetchone() | |
58 | if row is not None: | |
59 | self.glevel = row['level'] | |
60 | else: | |
61 | self.glevel = 0 | |
62 | else: | |
63 | self.glevel = 0 | |
64 | return self.glevel | |
65 | ||
66 | def setlevel(self, level, savetodb=True): | |
67 | if savetodb: | |
68 | if level != 0: | |
69 | c = main.query("REPLACE INTO users (auth, level) VALUES (%s, %s)", (self.auth, level)) | |
70 | else: | |
71 | c = main.query("DELETE FROM users WHERE auth = %s", (self.auth,)) | |
72 | if c == 0: # no rows affected | |
73 | c = True # is fine | |
74 | if c: | |
75 | self.glevel = level | |
76 | return True | |
77 | else: | |
78 | return False | |
79 | else: | |
80 | self.glevel = level | |
81 | return True | |
82 | ||
83 | def join(self, chan): | |
84 | if chan not in self.chans: self.chans.append(chan) | |
85 | def part(self, chan): | |
86 | try: | |
87 | self.chans.remove(chan) | |
88 | except: pass | |
89 | return len(self.chans) == 0 | |
90 | def quit(self): | |
91 | pass | |
92 | def nickchange(self, newnick): | |
93 | self.nick = newnick | |
94 | ||
95 | def __str__(self): return self.nick | |
96 | def __repr__(self): return "<User %r (%d)>" % (self.nick, self.glevel) | |
97 | ||
98 | class Channel(object): | |
99 | def __init__(self, name, bot): | |
100 | self.name = name | |
101 | self.bot = bot | |
102 | self.levels = {} | |
103 | ||
104 | self.users = [] | |
105 | self.voices = [] | |
106 | self.ops = [] | |
107 | ||
108 | c = main.query("SELECT user, level FROM chusers WHERE chan = %s", (self.name,)) | |
109 | if c: | |
110 | row = c.fetchone() | |
111 | while row is not None: | |
112 | self.levels[row['user']] = row['level'] | |
113 | row = c.fetchone() | |
114 | ||
115 | ||
116 | def msg(self, *args, **kwargs): | |
117 | self.bot.msg(self, *args, **kwargs) | |
118 | def slowmsg(self, *args, **kwargs): | |
119 | self.bot.slowmsg(self, *args, **kwargs) | |
120 | def fastmsg(self, *args, **kwargs): | |
121 | self.bot.fastmsg(self, *args, **kwargs) | |
122 | ||
123 | def levelof(self, auth): | |
124 | if auth is None: | |
125 | return 0 | |
126 | auth = auth.lower() | |
127 | if auth in self.levels: | |
128 | return self.levels[auth] | |
129 | else: | |
130 | return 0 | |
131 | ||
132 | def setlevel(self, auth, level, savetodb=True): | |
133 | auth = auth.lower() | |
134 | if savetodb: | |
135 | c = main.query("REPLACE INTO chusers (chan, user, level) VALUES (%s, %s, %s)", (self.name, auth, level)) | |
136 | if c: | |
137 | self.levels[auth] = level | |
138 | return True | |
139 | else: | |
140 | return False | |
141 | else: | |
142 | self.levels[auth] = level | |
143 | return True | |
144 | ||
145 | def userjoin(self, user, level=None): | |
146 | if user not in self.users: self.users.append(user) | |
147 | if level == 'op' and user not in self.ops: self.ops.append(user) | |
148 | if level == 'voice' and user not in self.voices: self.voices.append(user) | |
149 | def userpart(self, user): | |
150 | if user in self.ops: self.ops.remove(user) | |
151 | if user in self.voices: self.voices.remove(user) | |
152 | if user in self.users: self.users.remove(user) | |
153 | ||
154 | def userop(self, user): | |
155 | if user in self.users and user not in self.ops: self.ops.append(user) | |
156 | def uservoice(self, user): | |
157 | if user in self.users and user not in self.voices: self.voices.append(user) | |
158 | def userdeop(self, user): | |
159 | if user in self.ops: self.ops.remove(user) | |
160 | def userdevoice(self, user): | |
161 | if user in self.voices: self.voices.remove(user) | |
162 | ||
163 | def __str__(self): return self.name | |
164 | def __repr__(self): return "<Channel %r>" % (self.name) | |
165 | ||
166 | def __init__(self, cfg): | |
167 | self.mustquit = None | |
168 | self.starttime = time.time() | |
169 | self.cfg = cfg | |
170 | self.trigger = cfg.trigger | |
171 | if os.name == "posix": | |
172 | self.potype = "poll" | |
173 | self.po = select.poll() | |
174 | else: # f.e. os.name == "nt" (Windows) | |
175 | self.potype = "select" | |
176 | self.fdlist = [] | |
177 | ||
178 | def query(self, *args, **kwargs): | |
179 | if 'noretry' in kwargs: | |
180 | noretry = kwargs['noretry'] | |
181 | del kwargs['noretry'] | |
182 | else: | |
183 | noretry = False | |
184 | ||
185 | self.log("[SQL]", "?", "query(%s, %s)" % (', '.join([repr(i) for i in args]), ', '.join([str(key)+"="+repr(kwargs[key]) for key in kwargs]))) | |
186 | try: | |
187 | curs = self.db.cursor() | |
188 | res = curs.execute(*args, **kwargs) | |
189 | if res: | |
190 | return curs | |
191 | else: | |
192 | return res | |
193 | except MySQLdb.MySQLError as e: | |
194 | self.log("[SQL]", "!", "MySQL error! %r" % (e)) | |
195 | if not noretry: | |
196 | dbsetup() | |
197 | return self.query(*args, noretry=True, **kwargs) | |
198 | else: | |
199 | raise e | |
200 | ||
201 | def querycb(self, cb, *args, **kwargs): | |
202 | def run_query(): | |
203 | cb(self.query(*args, **kwargs)) | |
204 | threading.Thread(target=run_query).start() | |
205 | ||
206 | def newbot(self, nick, user, bind, authname, authpass, server, port, realname): | |
207 | if bind is None: bind = '' | |
208 | obj = bot.Bot(self, nick, user, bind, authname, authpass, server, port, realname) | |
209 | self.bots[nick.lower()] = obj | |
210 | ||
211 | def newfd(self, obj, fileno): | |
212 | self.fds[fileno] = obj | |
213 | if self.potype == "poll": | |
214 | self.po.register(fileno, select.POLLIN) | |
215 | elif self.potype == "select": | |
216 | self.fdlist.append(fileno) | |
217 | def delfd(self, fileno): | |
218 | del self.fds[fileno] | |
219 | if self.potype == "poll": | |
220 | self.po.unregister(fileno) | |
221 | elif self.potype == "select": | |
222 | self.fdlist.remove(fileno) | |
223 | ||
224 | def bot(self, name): #get Bot() by name (nick) | |
225 | return self.bots[name.lower()] | |
226 | def fd(self, fileno): #get Bot() by fd/fileno | |
227 | return self.fds[fileno] | |
228 | def randbot(self): #get Bot() randomly | |
229 | return self.bots[random.choice(list(self.bots.keys()))] | |
230 | ||
231 | def user(self, _nick, send_who=False, create=True): | |
232 | nick = _nick.lower() | |
233 | ||
234 | if send_who and (nick not in self.users or not self.users[nick].isauthed()): | |
235 | self.randbot().conn.send("WHO %s n%%ant,1" % (nick)) | |
236 | ||
237 | if nick in self.users: | |
238 | return self.users[nick] | |
239 | elif create: | |
240 | user = self.User(_nick) | |
241 | self.users[nick] = user | |
242 | return user | |
243 | else: | |
244 | return None | |
245 | def channel(self, name): #get Channel() by name | |
246 | if name.lower() in self.chans: | |
247 | return self.chans[name.lower()] | |
248 | else: | |
249 | return None | |
250 | ||
251 | def newchannel(self, bot, name): | |
252 | chan = self.Channel(name.lower(), bot) | |
253 | self.chans[name.lower()] = chan | |
254 | return chan | |
255 | ||
256 | def poll(self): | |
257 | timeout_seconds = 30 | |
258 | if self.potype == "poll": | |
259 | pollres = self.po.poll(timeout_seconds * 1000) | |
260 | return [fd for (fd, ev) in pollres] | |
261 | elif self.potype == "select": | |
262 | return select.select(self.fdlist, [], [], timeout_seconds)[0] | |
263 | ||
264 | def connectall(self): | |
265 | for bot in self.bots.values(): | |
266 | if bot.conn.state == 0: | |
267 | bot.connect() | |
268 | ||
269 | def module(self, name): | |
270 | return ctlmod.modules[name] | |
271 | ||
272 | def log(self, source, level, message): | |
273 | print("%09.3f %s [%s] %s" % (time.time() % 100000, source, level, message)) | |
274 | ||
275 | def getuserbyauth(self, auth): | |
276 | return [u for u in self.users.values() if u.auth == auth.lower()] | |
277 | ||
278 | def getdb(self): | |
279 | """Get a DB object. The object must be returned to the pool after us, using returndb().""" | |
280 | return self.dbs.pop() | |
281 | ||
282 | def returndb(self, db): | |
283 | self.dbs.append(db) | |
284 | ||
285 | #bind functions | |
286 | def hook(self, word, handler): | |
287 | try: | |
288 | self.msghandlers[word].append(handler) | |
289 | except: | |
290 | self.msghandlers[word] = [handler] | |
291 | def unhook(self, word, handler): | |
292 | if word in self.msghandlers and handler in self.msghandlers[word]: | |
293 | self.msghandlers[word].remove(handler) | |
294 | def hashook(self, word): | |
295 | return word in self.msghandlers and len(self.msghandlers[word]) != 0 | |
296 | def gethook(self, word): | |
297 | return self.msghandlers[word] | |
298 | ||
299 | def hooknum(self, word, handler): | |
300 | try: | |
301 | self.numhandlers[word].append(handler) | |
302 | except: | |
303 | self.numhandlers[word] = [handler] | |
304 | def unhooknum(self, word, handler): | |
305 | if word in self.numhandlers and handler in self.numhandlers[word]: | |
306 | self.numhandlers[word].remove(handler) | |
307 | def hasnumhook(self, word): | |
308 | return word in self.numhandlers and len(self.numhandlers[word]) != 0 | |
309 | def getnumhook(self, word): | |
310 | return self.numhandlers[word] | |
311 | ||
312 | def hookchan(self, chan, handler): | |
313 | try: | |
314 | self.chanhandlers[chan].append(handler) | |
315 | except: | |
316 | self.chanhandlers[chan] = [handler] | |
317 | def unhookchan(self, chan, handler): | |
318 | if chan in self.chanhandlers and handler in self.chanhandlers[chan]: | |
319 | self.chanhandlers[chan].remove(handler) | |
320 | def haschanhook(self, chan): | |
321 | return chan in self.chanhandlers and len(self.chanhandlers[chan]) != 0 | |
322 | def getchanhook(self, chan): | |
323 | return self.chanhandlers[chan] | |
324 | ||
325 | def hookexception(self, exc, handler): | |
326 | self.exceptionhandlers.append((exc, handler)) | |
327 | def unhookexception(self, exc, handler): | |
328 | self.exceptionhandlers.remove((exc, handler)) | |
329 | def hasexceptionhook(self, exc): | |
330 | return any((True for x,h in self.exceptionhandlers if isinstance(exc, x))) | |
331 | def getexceptionhook(self, exc): | |
332 | return (h for x,h in self.exceptionhandlers if isinstance(exc, x)) | |
333 | ||
334 | ||
335 | def dbsetup(): | |
336 | main.db = None | |
337 | main.dbs = [] | |
338 | for i in range(cfg.get('erebus', 'num_db_connections', 2)-1): | |
339 | main.dbs.append(MySQLdb.connect(host=cfg.dbhost, user=cfg.dbuser, passwd=cfg.dbpass, db=cfg.dbname, cursorclass=MySQLdb.cursors.DictCursor)) | |
340 | main.db = MySQLdb.connect(host=cfg.dbhost, user=cfg.dbuser, passwd=cfg.dbpass, db=cfg.dbname, cursorclass=MySQLdb.cursors.DictCursor) | |
341 | ||
342 | def setup(): | |
343 | global cfg, main | |
344 | ||
345 | cfg = config.Config('bot.config') | |
346 | ||
347 | if cfg.getboolean('debug', 'gc'): | |
348 | gc.set_debug(gc.DEBUG_LEAK) | |
349 | ||
350 | pidfile = open(cfg.pidfile, 'w') | |
351 | pidfile.write(str(os.getpid())) | |
352 | pidfile.close() | |
353 | ||
354 | main = Erebus(cfg) | |
355 | dbsetup() | |
356 | ||
357 | autoloads = [mod for mod, yes in cfg.items('autoloads') if int(yes) == 1] | |
358 | for mod in autoloads: | |
359 | ctlmod.load(main, mod) | |
360 | ||
361 | c = main.query("SELECT nick, user, bind, authname, authpass FROM bots WHERE active = 1") | |
362 | if c: | |
363 | rows = c.fetchall() | |
364 | c.close() | |
365 | for row in rows: | |
366 | main.newbot(row['nick'], row['user'], row['bind'], row['authname'], row['authpass'], cfg.host, cfg.port, cfg.realname) | |
367 | main.connectall() | |
368 | ||
369 | def loop(): | |
370 | poready = main.poll() | |
371 | for fileno in poready: | |
372 | try: | |
373 | data = main.fd(fileno).getdata() | |
374 | except: | |
375 | main.log('*', '!', 'Super-mega-emergency: getdata raised exception for socket %d' % (fileno)) | |
376 | traceback.print_exc() | |
377 | data = None | |
378 | if data is None: | |
379 | main.fd(fileno).close() | |
380 | else: | |
381 | for line in data: | |
382 | if cfg.getboolean('debug', 'io'): | |
383 | main.log(str(main.fd(fileno)), 'I', line) | |
384 | try: | |
385 | main.fd(fileno).parse(line) | |
386 | except: | |
387 | main.log('*', '!', 'Super-mega-emergency: parse raised exception for socket %d data %r' % (fileno, line)) | |
388 | traceback.print_exc() | |
389 | if main.mustquit is not None: | |
390 | main.log('*', '!', 'Core exiting due to: %s' % (main.mustquit)) | |
391 | raise main.mustquit | |
392 | ||
393 | if __name__ == '__main__': | |
394 | try: os.rename('logfile', 'oldlogs/%s' % (time.time())) | |
395 | except: pass | |
396 | sys.stdout = open('logfile', 'w', 1) | |
397 | sys.stderr = sys.stdout | |
398 | setup() | |
399 | while True: loop() |