chanserv/authtracker/authtracker_hooks.c

   1 /* authtracker module: Tracks when users come and go... */
   2
   3 #include "authtracker.h"
   4 #include "../chanserv.h"
   5 #include "../../core/hooks.h"
   6 #include "../../nick/nick.h"
   7 #include "../../lib/irc_string.h"
   8
   9 #include <time.h>
  10 #include <string.h>
  11 #include <stdio.h>
  12
  13 #define NTERFACER_AUTH  "nterfacer"
  14
  15 /* OK, we need to deal separately with users who have definitely gone (QUIT
  16  * or KILL) and those who has mysteriously vanished (lost in netsplit).
  17  * There are hooks for all these things, but sadly QUIT and KILL also
  18  * trigger the generic "lost nick" hook.  Luckily, these things always
  19  * happen one after the other without any intervening quits, so we will keep
  20  * track of the last QUIT or KILL details and ignore the subsequent
  21  * LOSTNICK. */
  22
  23 unsigned int at_lastnum;
  24 time_t at_lastauthts;
  25 unsigned long at_lastuserid;
  26
  27 unsigned long at_getuserid(nick *np) {
  28   /* If they are not +r, forget it. */
  29   if (!IsAccount(np))
  30     return 0;
  31
  32   /* Ignore that pesky nterfacer */
  33 #ifdef NTERFACER_AUTH
  34   if (!ircd_strcmp(np->authname, NTERFACER_AUTH))
  35     return 0;
  36 #endif
  37
  38   /* Use the userid from authext only. */
  39   if (np->auth)
  40     return np->auth->userid;
  41
  42   Error("authtracker",ERR_WARNING,"Unable to get userID from IsAccount() user %s",np->nick);
  43   return 0;
  44 }
  45
  46 void at_handlequitorkill(int hooknum, void *arg) {
  47   void **args=arg;
  48   nick *np=args[0];
  49   char *reason=args[1];
  50   char *rreason;
  51   char resbuf[512];
  52   unsigned long userid;
  53
  54   /* Ignore unauthed users, or those with no accountts */
  55   if (!(userid=at_getuserid(np)) || !np->accountts)
  56     return;
  57
  58   at_lastuserid=userid;
  59   at_lastauthts=np->accountts;
  60   at_lastnum=np->numeric;
  61
  62   if (hooknum==HOOK_NICK_KILL && (rreason=strchr(reason,' '))) {
  63     sprintf(resbuf,"Killed%s",rreason);
  64     reason=resbuf;
  65   }
  66
  67   at_logquit(userid, np->accountts, time(NULL), reason);
  68 }
  69
  70 void at_handlelostnick(int hooknum, void *arg) {
  71   nick *np=arg;
  72   unsigned long userid;
  73
  74   if (!(userid=at_getuserid(np)) || !np->accountts)
  75     return;
  76
  77   /* Don't do this for a user that just left normally (see above) */
  78   if ((userid==at_lastuserid) && (np->accountts == at_lastauthts) && (np->numeric==at_lastnum))
  79     return;
  80
  81   at_lostnick(np->numeric, userid, np->accountts, time(NULL), AT_NETSPLIT);
  82 }
  83
  84 void at_newnick(int hooknum, void *arg) {
  85   nick *np=arg;
  86   unsigned long userid;
  87
  88   /* Ignore unauthed users, or those with no TS */
  89   if (!(userid=at_getuserid(np)) || !np->accountts)
  90     return;
  91
  92   /* OK, we've seen an authed user appear.  If it's a known ghost we can zap it */
  93   if (!at_foundnick(np->numeric, userid, np->accountts)) {
  94     /* If we didn't zap a ghost then it's a new session */
  95     at_lognewsession(userid, np);
  96   }
  97 }
  98
  99 void at_serverlinked(int hooknum, void *arg) {
 100   unsigned long servernum=(unsigned long)arg;
 101
 102   at_serverback(servernum);
 103 }
 104
 105 void at_hookinit() {
 106   registerhook(HOOK_NICK_QUIT, at_handlequitorkill);
 107   registerhook(HOOK_NICK_KILL, at_handlequitorkill);
 108   registerhook(HOOK_NICK_LOSTNICK, at_handlelostnick);
 109   registerhook(HOOK_NICK_NEWNICK, at_newnick);
 110   registerhook(HOOK_NICK_ACCOUNT, at_newnick);
 111   registerhook(HOOK_SERVER_LINKED, at_serverlinked);
 112 }
 113
 114 void at_hookfini() {
 115   deregisterhook(HOOK_NICK_QUIT, at_handlequitorkill);
 116   deregisterhook(HOOK_NICK_KILL, at_handlequitorkill);
 117   deregisterhook(HOOK_NICK_LOSTNICK, at_handlelostnick);
 118   deregisterhook(HOOK_NICK_NEWNICK, at_newnick);
 119   deregisterhook(HOOK_NICK_ACCOUNT, at_newnick);
 120   deregisterhook(HOOK_SERVER_LINKED, at_serverlinked);
 121 }