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Commit | Line | Data |
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8ac0e8a7 CP |
1 | /* |
2 | * NOperserv Fakeuser module | |
3 | * | |
4 | * Allows fakeusers to be added so as to block nicks, for example. | |
5 | * | |
6 | * Copyright (c) Tim Gordon 2006. | |
7 | */ | |
8 | ||
9 | #include "../core/schedule.h" | |
10 | #include "../localuser/localuser.h" | |
11 | #include "../localuser/localuserchannel.h" | |
12 | #include "../irc/irc_config.h" | |
13 | #include "../lib/irc_string.h" | |
14 | #include "../control/control.h" | |
15 | #include "../channel/channel.h" | |
6c5439b1 | 16 | #include "../dbapi2/dbapi2.h" |
8ac0e8a7 | 17 | #include "../lib/strlfunc.h" |
87698d77 | 18 | #include "../lib/version.h" |
8ac0e8a7 CP |
19 | #include <string.h> |
20 | #include <stdlib.h> | |
8ac0e8a7 | 21 | |
70b0a4e5 | 22 | MODULE_VERSION(""); |
87698d77 | 23 | |
8ac0e8a7 CP |
24 | #define KILL_WAIT 10 |
25 | #define KILL_TIME 60 | |
26 | ||
27 | typedef struct fakeuser { | |
8ac0e8a7 CP |
28 | char nick[NICKLEN + 1]; |
29 | char ident[USERLEN + 1]; | |
30 | char host[HOSTLEN + 1]; | |
31 | char realname[REALLEN + 1]; | |
57eb978d | 32 | nick *user; |
8ac0e8a7 | 33 | time_t lastkill; |
57eb978d P |
34 | struct fakeuser *next; |
35 | } fakeuser; | |
8ac0e8a7 CP |
36 | |
37 | fakeuser *fakeuserlist = NULL; | |
8ac0e8a7 CP |
38 | |
39 | void fakeuser_cleanup(); | |
40 | int fakeuser_loaddb(); | |
6c5439b1 | 41 | void fakeusers_load(const DBAPIResult *res, void *arg); |
8ac0e8a7 CP |
42 | void fakeuser_handler(nick *user, int command, void **params); |
43 | int fakeadd(void *sender, int cargc, char **cargv); | |
44 | int fakelist(void *sender, int cargc, char **cargv); | |
45 | int fakekill(void *sender, int cargc, char **cargv); | |
57eb978d | 46 | void schedulefakeuser(void *arg); |
e0f6f3b8 | 47 | fakeuser *findfakeuserbynick(char *nick); |
57eb978d P |
48 | void fake_remove(char *nickname); |
49 | fakeuser *fake_add(fakeuser *details); | |
8ac0e8a7 | 50 | |
6c5439b1 P |
51 | static DBAPIConn *nofudb; |
52 | ||
8ac0e8a7 | 53 | void _init() { |
e0f6f3b8 | 54 | if (!fakeuser_loaddb()) { |
6189af13 | 55 | Error("fakeuser", ERR_FATAL, "Cannot load database"); |
8ac0e8a7 CP |
56 | return; |
57 | } | |
e0f6f3b8 | 58 | |
8ac0e8a7 CP |
59 | registercontrolhelpcmd("fakeuser", NO_OPER, 4, &fakeadd, "Usage: FAKEUSER nick <ident> <host> <realname>\nCreates a fake user."); |
60 | registercontrolhelpcmd("fakelist", NO_OPER, 0, &fakelist, "Usage: FAKELIST\nLists all fake users."); | |
61 | registercontrolhelpcmd("fakekill", NO_OPER, 2, &fakekill, "Usage: FAKEKILL nick <reason>\nRemoves a fake user"); | |
57eb978d | 62 | |
8ac0e8a7 CP |
63 | } |
64 | ||
65 | void _fini() { | |
66 | fakeuser_cleanup(); | |
57eb978d | 67 | deleteallschedules(schedulefakeuser); |
8ac0e8a7 CP |
68 | deregistercontrolcmd("fakeuser", &fakeadd); |
69 | deregistercontrolcmd("fakelist", &fakelist); | |
70 | deregistercontrolcmd("fakekill", &fakekill); | |
71 | } | |
72 | ||
e0f6f3b8 | 73 | void fakeuser_cleanup() { |
8ac0e8a7 | 74 | fakeuser *fake; |
8ac0e8a7 | 75 | void *next; |
e0f6f3b8 P |
76 | |
77 | for (fake = fakeuserlist; fake; fake = next) { | |
8ac0e8a7 CP |
78 | deregisterlocaluser(fake->user, "Signing off"); |
79 | next = fake->next; | |
80 | free(fake); | |
81 | } | |
e0f6f3b8 | 82 | |
8ac0e8a7 | 83 | fakeuserlist = NULL; |
8ac0e8a7 CP |
84 | } |
85 | ||
e0f6f3b8 | 86 | int fakeuser_loaddb() { |
6c5439b1 | 87 | if (!nofudb) { |
6189af13 | 88 | nofudb = dbapi2open(DBAPI2_DEFAULT, "fakeusers"); |
e0f6f3b8 P |
89 | |
90 | if (!nofudb) { | |
6c5439b1 P |
91 | Error("fakeuser", ERR_STOP, "Could not connect to database."); |
92 | return 0; | |
93 | } | |
94 | } | |
95 | ||
e0f6f3b8 P |
96 | nofudb->createtable(nofudb, NULL, NULL, |
97 | "CREATE TABLE ? (" | |
98 | "nick VARCHAR(?) NOT NULL," | |
99 | "ident VARCHAR(?) NOT NULL," | |
100 | "host VARCHAR(?) NOT NULL," | |
101 | "realname VARCHAR(?) NOT NULL," | |
102 | "PRIMARY KEY (nick))", "Tdddd", "fakeusers", NICKLEN, USERLEN, HOSTLEN, REALLEN); | |
6c5439b1 P |
103 | |
104 | nofudb->query(nofudb, fakeusers_load, NULL, | |
e0f6f3b8 | 105 | "SELECT nick, ident, host, realname FROM ?", "T", "fakeusers"); |
6c5439b1 | 106 | |
8ac0e8a7 CP |
107 | return 1; |
108 | } | |
109 | ||
6c5439b1 | 110 | void fakeusers_load(const DBAPIResult *res, void *arg) { |
57eb978d | 111 | fakeuser fakeuser; |
8ac0e8a7 | 112 | |
e0f6f3b8 | 113 | if (!res) |
6c5439b1 P |
114 | return; |
115 | ||
e0f6f3b8 | 116 | if (!res->success) { |
6c5439b1 P |
117 | Error("fakeuser", ERR_ERROR, "Error loading fakeuser list."); |
118 | res->clear(res); | |
8ac0e8a7 CP |
119 | return; |
120 | } | |
8ac0e8a7 | 121 | |
e0f6f3b8 | 122 | while (res->next(res)) { |
57eb978d P |
123 | strlcpy(fakeuser.nick, res->get(res, 0), NICKLEN + 1); |
124 | strlcpy(fakeuser.ident, res->get(res, 1), USERLEN + 1); | |
125 | strlcpy(fakeuser.host, res->get(res, 2), HOSTLEN + 1); | |
126 | strlcpy(fakeuser.realname, res->get(res, 3), REALLEN + 1); | |
127 | fake_add(&fakeuser); | |
8ac0e8a7 | 128 | } |
e0f6f3b8 P |
129 | |
130 | scheduleoneshot(time(NULL) + 1, schedulefakeuser, NULL); | |
6c5439b1 | 131 | res->clear(res); |
8ac0e8a7 CP |
132 | } |
133 | ||
e0f6f3b8 | 134 | fakeuser *getdetails(nick *user) { |
57eb978d P |
135 | fakeuser *details; |
136 | details = malloc(sizeof(fakeuser)); | |
e0f6f3b8 | 137 | |
8ac0e8a7 CP |
138 | if (!details) |
139 | return NULL; | |
e0f6f3b8 | 140 | |
8ac0e8a7 CP |
141 | strlcpy(details->nick, user->nick, NICKLEN + 1); |
142 | strlcpy(details->ident, user->ident, USERLEN + 1); | |
143 | strlcpy(details->host, user->host->name->content, HOSTLEN + 1); | |
144 | strlcpy(details->realname, user->realname->name->content, REALLEN + 1); | |
145 | details->lastkill = 0; | |
146 | return details; | |
147 | } | |
148 | ||
e0f6f3b8 | 149 | nick *register_fakeuseronnet(fakeuser *details) { |
8ac0e8a7 | 150 | nick *user; |
e0f6f3b8 | 151 | |
15167802 | 152 | if ((user = getnickbynick(details->nick)) && (IsOper(user) || IsService(user) || IsXOper(user))) { |
8ac0e8a7 CP |
153 | return NULL; |
154 | } | |
155 | ||
8ac0e8a7 | 156 | return registerlocaluser(details->nick, details->ident, details->host, details->realname, |
e0f6f3b8 | 157 | NULL, UMODE_INV | UMODE_DEAF, &fakeuser_handler); |
8ac0e8a7 CP |
158 | } |
159 | ||
e0f6f3b8 | 160 | fakeuser *fake_add(fakeuser *details) { |
57eb978d | 161 | fakeuser *newfake; |
8ac0e8a7 | 162 | |
8ac0e8a7 | 163 | newfake = malloc(sizeof(fakeuser)); |
e0f6f3b8 P |
164 | |
165 | if (!newfake) { | |
8ac0e8a7 CP |
166 | return NULL; |
167 | } | |
8ac0e8a7 | 168 | |
57eb978d | 169 | memcpy(newfake, details, sizeof(fakeuser)); |
8ac0e8a7 | 170 | |
57eb978d P |
171 | newfake->user = NULL; |
172 | newfake->lastkill = 0; | |
8ac0e8a7 | 173 | |
57eb978d P |
174 | newfake->next = fakeuserlist; |
175 | fakeuserlist = newfake; | |
176 | return newfake; | |
8ac0e8a7 CP |
177 | } |
178 | ||
57eb978d P |
179 | void fake_remove(char *nickname) { |
180 | fakeuser *fake, *prev; | |
8ac0e8a7 | 181 | |
e0f6f3b8 P |
182 | for (fake = fakeuserlist; fake; fake = fake->next) { |
183 | if (!ircd_strcmp(nickname, fake->nick)) { | |
184 | if (fake == fakeuserlist) | |
185 | fakeuserlist = fake->next; | |
57eb978d | 186 | else |
e0f6f3b8 P |
187 | prev->next = fake->next; |
188 | ||
57eb978d P |
189 | free(fake); |
190 | return; | |
8ac0e8a7 | 191 | } |
e0f6f3b8 P |
192 | |
193 | prev = fake; | |
8ac0e8a7 | 194 | } |
8ac0e8a7 CP |
195 | } |
196 | ||
e0f6f3b8 P |
197 | void fakeuser_handler(nick *user, int command, void **params) { |
198 | if (command == LU_KILLED) { | |
8ac0e8a7 CP |
199 | fakeuser *item; |
200 | time_t timenow = time(NULL); | |
201 | ||
57eb978d | 202 | item = findfakeuserbynick(user->nick); |
e0f6f3b8 P |
203 | |
204 | if (!item) { | |
15167802 | 205 | controlwall(NO_OPER, NL_FAKEUSERS, "Error: A fakeuser was killed, but wasn't found in the list"); |
6189af13 | 206 | Error("fakeuser", ERR_ERROR, "A fakeuser was killed, but wasn't found in the list"); |
8ac0e8a7 | 207 | return; |
15167802 | 208 | } |
8ac0e8a7 | 209 | |
57eb978d | 210 | item->user = NULL; |
8ac0e8a7 | 211 | |
57eb978d P |
212 | if (timenow - item->lastkill < KILL_TIME) { |
213 | controlwall(NO_OPER, NL_FAKEUSERS, "Fake user %s!%s@%s (%s) KILL'ed twice under in %d seconds. Removing.", item->nick, item->ident, item->host, item->realname, KILL_TIME); | |
214 | nofudb->squery(nofudb, "DELETE FROM ? WHERE nick = ?", "Ts", "fakeusers", item->nick); | |
215 | fake_remove(item->nick); | |
8ac0e8a7 CP |
216 | return; |
217 | } | |
e0f6f3b8 | 218 | |
57eb978d | 219 | item->lastkill = timenow; |
8ac0e8a7 | 220 | |
57eb978d | 221 | scheduleoneshot(time(NULL) + KILL_WAIT, schedulefakeuser, item); |
8ac0e8a7 CP |
222 | } |
223 | } | |
224 | ||
e0f6f3b8 | 225 | int fakeadd(void *sender, int cargc, char **cargv) { |
57eb978d P |
226 | fakeuser newfake; |
227 | fakeuser *fake; | |
8ac0e8a7 CP |
228 | |
229 | if (cargc == 0) | |
230 | return CMD_USAGE; | |
57eb978d P |
231 | |
232 | fake = findfakeuserbynick(cargv[0]); | |
e0f6f3b8 P |
233 | |
234 | if (fake) { | |
57eb978d P |
235 | controlreply(sender, "Fake User with nick %s already found", cargv[0]); |
236 | return CMD_ERROR; | |
237 | } | |
238 | ||
239 | strlcpy(newfake.nick, cargv[0], NICKLEN + 1); | |
e0f6f3b8 | 240 | |
8ac0e8a7 | 241 | if (cargc < 4) |
57eb978d | 242 | strlcpy(newfake.realname, cargv[0], REALLEN + 1); |
8ac0e8a7 | 243 | else |
57eb978d | 244 | strlcpy(newfake.realname, cargv[3], REALLEN + 1); |
e0f6f3b8 P |
245 | |
246 | if (cargc < 3) { | |
57eb978d P |
247 | strlcpy(newfake.host, cargv[0], NICKLEN + 1); |
248 | strlcat(newfake.host, ".fakeusers.quakenet.org", HOSTLEN + 1); | |
e0f6f3b8 | 249 | } else |
57eb978d | 250 | strlcpy(newfake.host, cargv[2], HOSTLEN + 1); |
e0f6f3b8 | 251 | |
8ac0e8a7 | 252 | if (cargc < 2) |
57eb978d | 253 | strlcpy(newfake.ident, cargv[0], USERLEN + 1); |
8ac0e8a7 | 254 | else |
57eb978d | 255 | strlcpy(newfake.ident, cargv[1], USERLEN + 1); |
8ac0e8a7 | 256 | |
57eb978d | 257 | fake = fake_add(&newfake); |
e0f6f3b8 P |
258 | |
259 | if (!fake) { | |
8ac0e8a7 CP |
260 | return CMD_ERROR; |
261 | } | |
57eb978d P |
262 | |
263 | nofudb->squery(nofudb, "INSERT INTO ? (nick, ident, host, realname) VALUES (?,?,?,?)", "Tssss", "fakeusers", fake->nick, fake->ident, fake->host, fake->realname); | |
264 | controlreply(sender, "Added fake user %s", fake->nick); | |
265 | controlwall(NO_OPER, NL_FAKEUSERS, "Fake user %s!%s@%s (%s) added by %s/%s", fake->nick, fake->ident, | |
e0f6f3b8 | 266 | fake->host, fake->realname, ((nick *)sender)->nick, ((nick *)sender)->authname); |
57eb978d P |
267 | |
268 | scheduleoneshot(time(NULL) + 1, schedulefakeuser, fake); | |
8ac0e8a7 CP |
269 | return CMD_OK; |
270 | } | |
271 | ||
e0f6f3b8 | 272 | int fakelist(void *sender, int cargc, char **cargv) { |
8ac0e8a7 | 273 | fakeuser *fake; |
e0f6f3b8 P |
274 | int fakeusercount = 0; |
275 | ||
276 | for (fake = fakeuserlist; fake; fake = fake->next) { | |
277 | if (!fake->user) | |
57eb978d P |
278 | controlreply(sender, "%s!%s@%s (%s) %s - RECONNECTING", fake->nick, fake->ident, |
279 | fake->host, fake->realname); | |
8ac0e8a7 | 280 | else |
57eb978d P |
281 | controlreply(sender, "%s!%s@%s (%s)", fake->nick, fake->ident, |
282 | fake->host, fake->realname); | |
283 | ||
284 | fakeusercount++; | |
8ac0e8a7 | 285 | } |
e0f6f3b8 | 286 | |
57eb978d | 287 | controlreply(sender, "%d fakeusers are currently connected", fakeusercount); |
8ac0e8a7 CP |
288 | return CMD_OK; |
289 | } | |
290 | ||
e0f6f3b8 | 291 | int fakekill(void *sender, int cargc, char **cargv) { |
8ac0e8a7 | 292 | fakeuser *fake; |
e0f6f3b8 | 293 | |
8ac0e8a7 CP |
294 | if (cargc == 0) |
295 | return CMD_USAGE; | |
57eb978d P |
296 | |
297 | fake = findfakeuserbynick(cargv[0]); | |
e0f6f3b8 P |
298 | |
299 | if (!fake) { | |
57eb978d P |
300 | controlreply(sender, "No Fake User with nick %s found", cargv[0]); |
301 | return CMD_ERROR; | |
302 | } | |
303 | ||
304 | nofudb->squery(nofudb, "DELETE FROM ? WHERE nick = ?", "Ts", "fakeusers", fake->nick); | |
305 | controlreply(sender, "Killed fake user %s", fake->nick); | |
306 | controlwall(NO_OPER, NL_FAKEUSERS, "Fake user %s!%s@%s (%s) removed by %s/%s", fake->nick, fake->ident, | |
e0f6f3b8 | 307 | fake->host, fake->realname, ((nick *)sender)->nick, ((nick *)sender)->authname); |
57eb978d | 308 | |
e0f6f3b8 | 309 | if (fake->user) { |
8ac0e8a7 CP |
310 | if (cargc > 1) |
311 | deregisterlocaluser(fake->user, cargv[1]); | |
312 | else | |
313 | deregisterlocaluser(fake->user, "Signing off"); | |
8ac0e8a7 | 314 | } |
57eb978d P |
315 | |
316 | fake_remove(cargv[0]); | |
317 | return CMD_OK; | |
318 | } | |
319 | ||
320 | void schedulefakeuser(void *arg) { | |
321 | fakeuser *fake; | |
e0f6f3b8 P |
322 | |
323 | for (fake = fakeuserlist; fake; fake = fake->next) { | |
324 | if (!fake->user) { | |
325 | fake->user = register_fakeuseronnet(fake); | |
57eb978d | 326 | } |
8ac0e8a7 | 327 | } |
8ac0e8a7 CP |
328 | } |
329 | ||
e0f6f3b8 | 330 | fakeuser *findfakeuserbynick(char *nick) { |
8ac0e8a7 | 331 | fakeuser *fake; |
e0f6f3b8 P |
332 | |
333 | for (fake = fakeuserlist; fake; fake = fake->next) { | |
334 | if (!ircd_strcmp(nick, fake->nick)) { | |
57eb978d P |
335 | return fake; |
336 | } | |
8ac0e8a7 | 337 | } |
e0f6f3b8 | 338 | |
57eb978d | 339 | return NULL; |
8ac0e8a7 | 340 | } |