3 #include "../nick/nick.h"
4 #include "../lib/base64.h"
5 #include "../lib/sstring.h"
6 #include "../irc/irc.h"
7 #include "../irc/irc_config.h"
8 #include "../core/hooks.h"
9 #include "../core/error.h"
10 #include "../lib/version.h"
11 #include "localuser.h"
21 UserMessageHandler umhandlers
[MAXLOCALUSER
+1];
23 typedef struct pendingkill
{
24 nick
*source
, *target
;
26 struct pendingkill
*next
;
29 pendingkill
*pendingkilllist
;
31 void checklocalkill(int hooknum
, void *nick
);
32 void clearpendingkills(int hooknum
, void *arg
);
33 void checkpendingkills(int hooknum
, void *arg
);
34 void _killuser(nick
*source
, nick
*target
, char *reason
);
39 for (i
=0;i
<=MAXLOCALUSER
;i
++) {
44 registerhook(HOOK_IRC_SENDBURSTNICKS
,&sendnickburst
);
45 registerhook(HOOK_NICK_KILL
,&checklocalkill
);
46 registerhook(HOOK_NICK_LOSTNICK
,&checkpendingkills
); /* CHECK ME -> should this hook KILL or LOSTNICK or BOTH */
47 registerhook(HOOK_CORE_ENDOFHOOKSQUEUE
,&clearpendingkills
);
48 registerserverhandler("P",&handleprivatemsgcmd
,2);
49 registerserverhandler("O",&handleprivatenoticecmd
, 2);
55 for (pk
=pendingkilllist
;pk
;pk
=pendingkilllist
) {
56 pendingkilllist
= pk
->next
;
57 freesstring(pk
->reason
);
61 deregisterhook(HOOK_IRC_SENDBURSTNICKS
,&sendnickburst
);
62 deregisterhook(HOOK_NICK_KILL
,&checklocalkill
);
63 deregisterhook(HOOK_NICK_LOSTNICK
,&checkpendingkills
); /* CHECK ME -> should this hook KILL or LOSTNICK or BOTH */
64 deregisterhook(HOOK_CORE_ENDOFHOOKSQUEUE
,&clearpendingkills
);
66 deregisterserverhandler("P",&handleprivatemsgcmd
);
67 deregisterserverhandler("O",&handleprivatenoticecmd
);
71 * registerlocaluserflags:
72 * This function creates a local user, and broadcasts it's existence to the net (if connected).
75 nick
*registerlocaluserflags(char *nickname
, char *ident
, char *host
, char *realname
, char *authname
, unsigned long authid
, flag_t accountflags
, flag_t umodes
, UserMessageHandler handler
) {
78 struct irc_in_addr ipaddress
;
81 currentlocalunum
=(currentlocalunum
+1)%262142
;
82 while (servernicks
[numerictolong(mynumeric
->content
,2)][currentlocalunum
&MAXLOCALUSER
]!=NULL
) {
83 /* Numeric 262143 on our server is used for "nouser" by the channels module, so cannot be allocated */
84 currentlocalunum
=(currentlocalunum
+1)%262142
;
85 if (++i
>MAXLOCALUSER
) {
90 /* This code is very similar to stuff in nick.c... */
92 newuser
->numeric
=(numerictolong(mynumeric
->content
,2)<<18)|(currentlocalunum
);
93 strncpy(newuser
->nick
,nickname
,NICKLEN
);
94 newuser
->nick
[NICKLEN
]='\0';
95 strncpy(newuser
->ident
,ident
,USERLEN
);
96 newuser
->ident
[USERLEN
]='\0';
97 newuser
->host
=findorcreatehost(host
);
98 newuser
->realname
=findorcreaterealname(realname
);
99 newuser
->nextbyhost
=newuser
->host
->nicks
;
100 newuser
->host
->nicks
=newuser
;
101 newuser
->nextbyrealname
=newuser
->realname
->nicks
;
102 newuser
->realname
->nicks
=newuser
;
103 newuser
->umodes
=umodes
;
105 memset(&ipaddress
, 0, sizeof(ipaddress
));
106 ((unsigned short *)(ipaddress
.in6_16
))[5] = 65535;
107 ((unsigned short *)(ipaddress
.in6_16
))[6] = 127;
108 ((unsigned char *)(ipaddress
.in6_16
))[14] = 1;
109 ((unsigned char *)(ipaddress
.in6_16
))[15] = (currentlocalunum%253
)+1;
111 newuser
->ipnode
= refnode(iptree
, &ipaddress
, PATRICIA_MAXBITS
);
112 node_increment_usercount(newuser
->ipnode
);
114 newuser
->timestamp
=getnettime();
115 newuser
->shident
=NULL
;
116 newuser
->sethost
=NULL
;
119 memset(newuser
->exts
, 0, MAXNICKEXTS
* sizeof(void *));
121 if (IsOper(newuser
)) {
122 newuser
->opername
= getsstring("-", ACCOUNTLEN
);
124 newuser
->opername
= NULL
;
127 newuser
->accountts
=0;
129 newuser
->authname
=NULLAUTHNAME
;
130 if (IsAccount(newuser
)) {
131 newuser
->accountts
=newuser
->timestamp
;
133 newuser
->auth
=findorcreateauthname(authid
, authname
);
134 newuser
->authname
=newuser
->auth
->name
;
135 newuser
->auth
->usercount
++;
136 newuser
->nextbyauthname
=newuser
->auth
->nicks
;
137 newuser
->auth
->nicks
=newuser
;
138 newuser
->auth
->flags
=accountflags
;
141 this is done for three reasons:
142 1: so I don't have to change 500 pieces of code
143 2: so services can be authed with special reserved ids
144 3: saves space over the old authname per user method
146 newuser
->authname
=malloc(strlen(authname
) + 1);
147 strcpy(newuser
->authname
,authname
);
152 /* Check for nick collision */
153 if ((np
=getnickbynick(nickname
))!=NULL
) {
154 /* Make sure we will win the collision */
155 newuser
->timestamp
=(np
->timestamp
-1);
156 killuser(NULL
, np
, "Nick collision");
158 sendnickmsg(newuser
);
162 umhandlers
[(currentlocalunum
&MAXLOCALUSER
)]=handler
;
165 *(gethandlebynumeric(newuser
->numeric
))=newuser
;
166 addnicktohash(newuser
);
167 triggerhook(HOOK_NICK_NEWNICK
,newuser
);
174 * This function changes the name of a given local user
177 int renamelocaluser(nick
*np
, char *newnick
) {
180 time_t timestamp
=getnettime();
182 char oldnick
[NICKLEN
+1];
187 if (strlen(newnick
) > NICKLEN
)
190 if (homeserver(np
->numeric
)!=mylongnum
)
193 strncpy(oldnick
,np
->nick
,NICKLEN
);
194 oldnick
[NICKLEN
]='\0';
196 harg
[1]=(void *)oldnick
;
198 if ((np2
=getnickbynick(newnick
))) {
200 /* Case only name change */
201 strncpy(np
->nick
,newnick
,NICKLEN
);
202 np
->nick
[NICKLEN
]='\0';
203 irc_send("%s N %s %jd",iptobase64(ipbuf
, &(np
->p_ipaddr
), sizeof(ipbuf
), 1),np
->nick
,(intmax_t)np
->timestamp
);
204 triggerhook(HOOK_NICK_RENAME
,harg
);
207 /* Kill other user and drop through */
208 timestamp
=np2
->timestamp
-1;
209 killuser(NULL
, np2
, "Nick collision");
213 np
->timestamp
=timestamp
;
214 removenickfromhash(np
);
215 strncpy(np
->nick
,newnick
,NICKLEN
);
216 np
->nick
[NICKLEN
]='\0';
218 irc_send("%s N %s %jd",longtonumeric(np
->numeric
,5),np
->nick
,(intmax_t)np
->timestamp
);
219 triggerhook(HOOK_NICK_RENAME
,harg
);
225 * deregisterlocaluser:
226 * This function removes the given local user from the network
229 int deregisterlocaluser(nick
*np
, char *reason
) {
234 if (np
==NULL
|| (homeserver(np
->numeric
)!=mylongnum
)) {
235 /* Non-existent user, or user not on this server */
239 if (reason
==NULL
|| *reason
=='\0') {
240 sprintf(reasonstr
,"Quit");
242 snprintf(reasonstr
,510,"Quit: %s",reason
);
248 triggerhook(HOOK_NICK_QUIT
, harg
);
251 umhandlers
[np
->numeric
&MAXLOCALUSER
]=NULL
;
254 irc_send("%s Q :%s",longtonumeric(numeric
,5),reasonstr
);
261 * hooklocaluserhandler:
262 * This function adds a new handler to the hook chain for a local user
263 * THIS RELIES ON MODULES BEING UNLOADED IN THE CORRECT ORDER.
265 UserMessageHandler
hooklocaluserhandler(nick
*np
, UserMessageHandler newhandler
) {
266 UserMessageHandler oldhandler
= NULL
;
267 if (np
==NULL
|| (homeserver(np
->numeric
)!=mylongnum
)) {
268 /* Non-existent user, or user not on this server */
271 oldhandler
= umhandlers
[np
->numeric
&MAXLOCALUSER
];
272 umhandlers
[np
->numeric
&MAXLOCALUSER
]=newhandler
;
278 * Sends details of a given local nick to the network.
281 void sendnickmsg(nick
*np
) {
283 char ipbuf
[25], operbuf
[ACCOUNTLEN
+ 5];
284 char accountbuf
[100];
286 strncpy(numericbuf
,longtonumeric(np
->numeric
,5),5);
289 if(IsOper(np
) && (serverlist
[myhub
].flags
& SMODE_OPERNAME
)) {
290 snprintf(operbuf
,sizeof(operbuf
)," %s",np
->opername
?np
->opername
->content
:"-");
298 if(np
->auth
->flags
) {
299 snprintf(accountbuf
,sizeof(accountbuf
)," %s:%ld:%lu:%"PRIu64
,np
->authname
,np
->accountts
,np
->auth
->userid
,np
->auth
->flags
);
301 snprintf(accountbuf
,sizeof(accountbuf
)," %s:%ld:%lu",np
->authname
,np
->accountts
,np
->auth
->userid
);
303 } else if(np
->authname
) {
304 snprintf(accountbuf
,sizeof(accountbuf
)," %s:%ld:0",np
->authname
,np
->accountts
);
308 irc_send("%s N %s 1 %ld %s %s %s%s%s %s %s :%s",
309 mynumeric
->content
,np
->nick
,np
->timestamp
,np
->ident
,np
->host
->name
->content
,
310 printflags(np
->umodes
,umodeflags
),operbuf
,accountbuf
,iptobase64(ipbuf
,&(np
->p_ipaddr
),
311 sizeof(ipbuf
),1),numericbuf
,np
->realname
->name
->content
);
314 void sendnickburst(int hooknum
, void *arg
) {
315 /* Send nick messages for all local users */
319 nh
=servernicks
[numerictolong(mynumeric
->content
,2)];
320 for (i
=0;i
<=MAXLOCALUSER
;i
++) {
327 /* Check for a kill of a local user */
328 void checklocalkill(int hooknum
, void *arg
) {
330 nick
*target
=args
[0];
331 char *reason
=args
[1];
338 numeric
=((nick
*)target
)->numeric
;
340 if (homeserver(numeric
)==mylongnum
) {
341 if (umhandlers
[(numeric
)&MAXLOCALUSER
]!=NULL
) {
342 (umhandlers
[(numeric
)&MAXLOCALUSER
])((nick
*)target
,LU_KILLED
,myargs
);
347 int handleprivatemsgcmd(void *source
, int cargc
, char **cargv
) {
348 return handlemessageornotice(source
, cargc
, cargv
, 0);
351 int handleprivatenoticecmd(void *source
, int cargc
, char **cargv
) {
352 return handlemessageornotice(source
, cargc
, cargv
, 1);
355 /* Handle privmsg or notice command addressed to user */
356 int handlemessageornotice(void *source
, int cargc
, char **cargv
, int isnotice
) {
360 char targetnick
[NICKLEN
+1];
365 /* Should have target and message */
370 if (cargv
[0][0]=='#' || cargv
[0][0]=='+') {
371 /* Channel message/notice */
375 if ((sender
=getnickbynumericstr((char *)source
))==NULL
) {
376 Error("localuser",ERR_WARNING
,"PRIVMSG from non existant user %s",(char *)source
);
380 /* Check for a "secure" message (foo@bar) */
382 for (i
=0,ch
=cargv
[0];(i
<=NICKLEN
) && (*ch
);i
++,ch
++) {
392 if (!foundat
) { /* Didn't find an @ sign, assume it's a numeric */
393 if ((target
=getnickbynumericstr(cargv
[0]))==NULL
) {
394 Error("localuser",ERR_DEBUG
,"Couldn't find target for %s",cargv
[0]);
397 } else { /* Did find @, do a lookup by nick */
398 if ((target
=getnickbynick(targetnick
))==NULL
) {
399 Error("localuser",ERR_DEBUG
,"Couldn't find target for %s",cargv
[0]);
400 irc_send(":%s 401 %s %s :No such nick",myserver
->content
,sender
->nick
,cargv
[0]);
405 if (homeserver(target
->numeric
)!=mylongnum
) {
406 Error("localuser",ERR_WARNING
,"Got message/notice for someone not on my server");
407 irc_send(":%s 401 %s %s :No such nick",myserver
->content
,sender
->nick
,cargv
[0]);
411 if (foundat
&& !IsService(target
)) {
412 Error("localuser",ERR_DEBUG
,"Received secure message for %s, but user is not a service",cargv
[0]);
413 irc_send(":%s 401 %s %s :No such nick",myserver
->content
,sender
->nick
,cargv
[0]);
417 if (umhandlers
[(target
->numeric
)&MAXLOCALUSER
]==NULL
) {
418 /* No handler anyhow.. */
422 /* Dispatch the message. */
423 nargs
[0]=(void *)sender
;
424 nargs
[1]=(void *)cargv
[1];
425 (umhandlers
[(target
->numeric
)&MAXLOCALUSER
])(target
,isnotice
?LU_PRIVNOTICE
:(foundat
?LU_SECUREMSG
:LU_PRIVMSG
),nargs
);
430 /* Send message to user */
431 void sendmessagetouser(nick
*source
, nick
*target
, char *format
, ... ) {
436 longtonumeric2(source
->numeric
,5,senderstr
);
439 /* 10 bytes of numeric, 5 bytes of fixed format + terminator = 17 bytes */
440 /* So max sendable message is 495 bytes. Of course, a client won't be able
441 * to receive this.. */
443 vsnprintf(buf
,BUFSIZE
-17,format
,va
);
446 if (homeserver(target
->numeric
)!=mylongnum
)
447 irc_send("%s P %s :%s",senderstr
,longtonumeric(target
->numeric
,5),buf
);
450 /* Send messageto server, we don't check, but noones going to want to put a server pointer in anyway... */
451 void sendsecuremessagetouser(nick
*source
, nick
*target
, char *servername
, char *format
, ... ) {
456 longtonumeric2(source
->numeric
,5,senderstr
);
459 /* 10 bytes of numeric, 5 bytes of fixed format + terminator = 17 bytes */
460 /* So max sendable message is 495 bytes. Of course, a client won't be able
461 * to receive this.. */
463 vsnprintf(buf
,BUFSIZE
-17,format
,va
);
466 if (homeserver(target
->numeric
)!=mylongnum
)
467 irc_send("%s P %s@%s :%s",senderstr
,target
->nick
,servername
,buf
);
470 /* Send notice to user */
471 void sendnoticetouser(nick
*source
, nick
*target
, char *format
, ... ) {
476 longtonumeric2(source
->numeric
,5,senderstr
);
479 /* 10 bytes of numeric, 5 bytes of fixed format + terminator = 17 bytes */
480 /* So max sendable message is 495 bytes. Of course, a client won't be able
481 * to receive this.. */
483 vsnprintf(buf
,BUFSIZE
-17,format
,va
);
486 if (homeserver(target
->numeric
)!=mylongnum
)
487 irc_send("%s O %s :%s",senderstr
,longtonumeric(target
->numeric
,5),buf
);
491 void killuser(nick
*source
, nick
*target
, char *format
, ... ) {
496 va_start(va
, format
);
497 vsnprintf(buf
, BUFSIZE
-17, format
, va
);
500 if (hookqueuelength
) {
501 for (pk
= pendingkilllist
; pk
; pk
= pk
->next
)
502 if (pk
->target
== target
)
505 Error("localuser", ERR_DEBUG
, "Adding pending kill for %s", target
->nick
);
506 pk
= (pendingkill
*)malloc(sizeof(pendingkill
));
509 pk
->reason
= getsstring(buf
, BUFSIZE
);
510 pk
->next
= pendingkilllist
;
511 pendingkilllist
= pk
;
513 _killuser(source
, target
, buf
);
517 void sethostuser(nick
*target
, char *ident
, char *host
) {
518 irc_send("%s SH %s %s %s", mynumeric
->content
, longtonumeric(target
->numeric
, 5), ident
, host
);
521 void _killuser(nick
*source
, nick
*target
, char *reason
) {
523 char sourcestring
[HOSTLEN
+NICKLEN
+3];
528 /* If we have a null nick, use the server.. */
529 strcpy(senderstr
, mynumeric
->content
);
530 strcpy(sourcestring
, myserver
->content
);
532 strcpy(senderstr
, longtonumeric(source
->numeric
,5));
533 sprintf(sourcestring
,"%s!%s",source
->host
->name
->content
, source
->nick
);
536 snprintf(reasonstr
,512,"%s (%s)",sourcestring
,reason
);
539 irc_send("%s D %s :%s",senderstr
,longtonumeric(target
->numeric
,5),reasonstr
);
543 triggerhook(HOOK_NICK_KILL
, args
);
548 void clearpendingkills(int hooknum
, void *arg
) {
551 pk
= pendingkilllist
;
553 pendingkilllist
= pk
->next
;
556 Error("localuser", ERR_DEBUG
, "Processing pending kill for %s", pk
->target
->nick
);
557 _killuser(pk
->source
, pk
->target
, pk
->reason
->content
);
560 freesstring(pk
->reason
);
562 pk
= pendingkilllist
;
566 void checkpendingkills(int hooknum
, void *arg
) {
567 nick
*np
= (nick
*)arg
;
570 for (pk
=pendingkilllist
; pk
; pk
= pk
->next
) {
571 if (pk
->source
== np
) {
572 Error("localuser", ERR_INFO
, "Pending kill source %s got deleted, NULL'ing source for pending kill", np
->nick
);
575 if (pk
->target
== np
) {
576 Error("localuser", ERR_INFO
, "Pending kill target %s got deleted, NULL'ing target for pending kill", np
->nick
);
582 void sendaccountmessage(nick
*np
) {
583 if (connected
&& IsAccount(np
)) {
585 if (np
->auth
->flags
) {
586 irc_send("%s AC %s %s %ld %lu %"PRIu64
,mynumeric
->content
, longtonumeric(np
->numeric
,5), np
->authname
, np
->accountts
, np
->auth
->userid
, np
->auth
->flags
);
588 irc_send("%s AC %s %s %ld %lu",mynumeric
->content
, longtonumeric(np
->numeric
,5), np
->authname
, np
->accountts
, np
->auth
->userid
);
591 irc_send("%s AC %s %s %ld 0",mynumeric
->content
, longtonumeric(np
->numeric
,5), np
->authname
, np
->accountts
);
596 /* Auth user, don't use to set flags after authing */
597 void localusersetaccount(nick
*np
, char *accname
, unsigned long accid
, u_int64_t accountflags
, time_t authTS
) {
599 Error("localuser",ERR_WARNING
,"Tried to set account on user %s already authed", np
->nick
);
604 np
->accountts
=authTS
?authTS
:getnettime();
607 np
->auth
=findorcreateauthname(accid
, accname
);
608 np
->auth
->usercount
++;
609 np
->authname
=np
->auth
->name
;
610 np
->nextbyauthname
=np
->auth
->nicks
;
612 np
->auth
->flags
=accountflags
;
615 np
->authname
=malloc(strlen(accname
) + 1);
616 strcpy(np
->authname
,accname
);
619 sendaccountmessage(np
);
621 triggerhook(HOOK_NICK_ACCOUNT
, np
);
624 void localusersetumodes(nick
*np
, flag_t newmodes
) {
626 irc_send("%s M %s %s", longtonumeric(np
->numeric
,5), np
->nick
, printflagdiff(np
->umodes
, newmodes
, umodeflags
));
629 np
->umodes
= newmodes
;
632 void localusersetaccountflags(authname
*anp
, u_int64_t accountflags
) {
635 u_int64_t oldflags
= anp
->flags
;
639 anp
->flags
= accountflags
;
641 for(np
=anp
->nicks
;np
;np
=np
->nextbyauthname
)
642 sendaccountmessage(np
);
644 triggerhook(HOOK_AUTH_FLAGSUPDATED
, arg
);