nickwatch/nickwatch.c

   1 #include <stdarg.h>
   2 #include <stdio.h>
   3 #include <string.h>
   4 #include "../core/schedule.h"
   5 #include "../control/control.h"
   6 #include "../newsearch/newsearch.h"
   7 #include "../newsearch/parser.h"
   8
   9 typedef struct nickwatch {
  10   int id;
  11
  12   char createdby[64];
  13   int hits;
  14   char term[512];
  15   parsertree *tree;
  16
  17   struct nickwatch *next;
  18 } nickwatch;
  19
  20 typedef struct nickwatchevent {
  21   char description[128];
  22   struct nickwatchevent *next;
  23 } nickwatchevent;
  24
  25 static nickwatch *nickwatches;
  26 static int nextnickwatch = 1;
  27 static int nickwatchext;
  28
  29 static void nw_dummyreply(nick *np, char *format, ...) { }
  30 static void nw_dummywall(int level, char *format, ...) { }
  31
  32 static nickwatch *nw_currentwatch;
  33 static array nw_pendingnicks;
  34
  35 static void nw_printnick(searchCtx *ctx, nick *sender, nick *np) {
  36   char hostbuf[HOSTLEN+NICKLEN+USERLEN+4];
  37   char events[512];
  38   nickwatchevent *nwe = np->exts[nickwatchext];
  39   int len;
  40
  41   nw_currentwatch->hits++;
  42
  43   events[0] = '\0';
  44   len = 0;
  45
  46   for (nwe = np->exts[nickwatchext]; nwe; nwe = nwe->next) {
  47     if (len > 0)
  48       len += snprintf(events + len, sizeof(events) - len, ", ");
  49
  50     len += snprintf(events + len, sizeof(events) - len, "%s", nwe->description);
  51   }
  52
  53   controlwall(NO_OPER, NL_HITS, "nickwatch(#%d, %s): %s [%s] (%s) (%s)", nw_currentwatch->id, events, visiblehostmask(np,hostbuf),
  54                IPtostr(np->ipaddress), printflags(np->umodes, umodeflags), np->realname->name->content);
  55 }
  56
  57 static void nwe_enqueue(nick *np, const char *format, ...) {
  58   nickwatchevent *nwe;
  59   va_list va;
  60   int slot;
  61
  62   nwe = malloc(sizeof(nickwatchevent));
  63
  64   va_start(va, format);
  65   vsnprintf(nwe->description, sizeof(nwe->description), format, va);
  66   va_end(va);
  67
  68   nwe->next = np->exts[nickwatchext];
  69   np->exts[nickwatchext] = nwe;
  70
  71   slot = array_getfreeslot(&nw_pendingnicks);
  72   ((nick **)nw_pendingnicks.content)[slot] = np;
  73 }
  74
  75 static void nwe_clear(nick *np) {
  76   nickwatchevent *nwe, *next;
  77
  78   for (nwe = np->exts[nickwatchext]; nwe; nwe = next) {
  79     next = nwe->next;
  80     free(nwe);
  81   }
  82
  83   np->exts[nickwatchext] = NULL;
  84 }
  85
  86 static void nw_sched_processevents(void *arg) {
  87   nickwatch *nw;
  88   int i, slot;
  89   unsigned int marker;
  90   nick *np;
  91   array nicks;
  92
  93   array_init(&nicks, sizeof(nick *));
  94   marker = nextnickmarker();
  95
  96   for (i = 0; i < nw_pendingnicks.cursi; i++) {
  97     np = ((nick **)nw_pendingnicks.content)[i];
  98
  99     if (!np)
 100       continue;
 101
 102     if (np->marker != marker) {
 103       np->marker = marker;
 104       slot = array_getfreeslot(&nicks);
 105       ((nick **)nicks.content)[slot] = np;
 106     }
 107   }
 108
 109   array_free(&nw_pendingnicks);
 110   array_init(&nw_pendingnicks, sizeof(nick *));
 111
 112   for (nw = nickwatches; nw; nw = nw->next) {
 113     nw_currentwatch = nw;
 114     ast_nicksearch(nw->tree->root, &nw_dummyreply, mynick, &nw_dummywall, &nw_printnick, NULL, NULL, 10, &nicks);
 115   }
 116
 117   for (i = 0; i < nicks.cursi; i++) {
 118     np = ((nick **)nicks.content)[i];
 119     nwe_clear(np);
 120   }
 121
 122   array_free(&nicks);
 123 }
 124
 125 static void nw_hook_newnick(int hooknum, void *arg) {
 126   nick *np = arg;
 127   nwe_enqueue(np, "new user");
 128 }
 129
 130 static void nw_hook_account(int hooknum, void *arg) {
 131   nick *np = arg;
 132   nwe_enqueue(np, "logged in with account %s", np->authname);
 133 }
 134
 135 static void nw_hook_lostnick(int hooknum, void *arg) {
 136   nick *np = arg;
 137   int i;
 138
 139   nwe_clear(np);
 140
 141   for (i = 0; i < nw_pendingnicks.cursi; i++)
 142     if (((nick **)nw_pendingnicks.content)[i] == np)
 143       ((nick **)nw_pendingnicks.content)[i] = NULL;
 144 }
 145
 146 static void nw_hook_rename(int hooknum, void *arg) {
 147   void **args = arg;
 148   nick *np = args[0];
 149   char *oldnick = args[1];
 150   nwe_enqueue(np, "renamed from %s", oldnick);
 151 }
 152
 153 static void nw_hook_umodechange(int hooknum, void *arg) {
 154   void **args = arg;
 155   nick *np = args[0];
 156   flag_t oldmodes = (uintptr_t)args[1];
 157   char buf[64];
 158   strncpy(buf, printflags(np->umodes, umodeflags), sizeof(buf));
 159   nwe_enqueue(np, "umodes %s -> %s", printflags(oldmodes, umodeflags), buf);
 160 }
 161
 162 static void nw_hook_message(int hooknum, void *arg) {
 163   void **args = arg;
 164   nick *np = args[0];
 165   int isnotice = (uintptr_t)args[2];
 166   nwe_enqueue(np, isnotice ? "notice" : "message");
 167 }
 168
 169 static void nw_hook_joinchannel(int hooknum, void *arg) {
 170   void **args = arg;
 171   channel *cp = args[0];
 172   nick *np = args[1];
 173   nwe_enqueue(np, "join channel %s", cp->index->name->content);
 174 }
 175
 176 static int nw_cmd_nickwatch(void *source, int cargc, char **cargv) {
 177   nick *sender = source;
 178   nickwatch *nw;
 179   parsertree *tree;
 180
 181   if (cargc < 1)
 182     return CMD_USAGE;
 183
 184   tree = parse_string(reg_nicksearch, cargv[0]);
 185   if (!tree) {
 186     displaystrerror(controlreply, sender, cargv[0]);
 187     return CMD_ERROR;
 188   }
 189
 190   nw = malloc(sizeof(nickwatch));
 191   nw->id = nextnickwatch++;
 192   snprintf(nw->createdby, sizeof(nw->createdby), "#%s", sender->authname);
 193   nw->hits = 0;
 194   strncpy(nw->term, cargv[0], sizeof(nw->term));
 195   nw->tree = parse_string(reg_nicksearch, cargv[0]);
 196   nw->next = nickwatches;
 197   nickwatches = nw;
 198
 199   controlreply(sender, "Done.");
 200
 201   return CMD_OK;
 202 }
 203
 204 static int nw_cmd_nickunwatch(void *source, int cargc, char **cargv) {
 205   nick *sender = source;
 206   nickwatch **pnext, *nw;
 207   int id;
 208
 209   if (cargc < 1)
 210     return CMD_USAGE;
 211
 212   id = atoi(cargv[0]);
 213
 214   for (pnext = &nickwatches; *pnext; pnext = &((*pnext)->next)) {
 215     nw = *pnext;
 216
 217     if (nw->id == id) {
 218       parse_free(nw->tree);
 219       *pnext = nw->next;
 220       free(nw);
 221
 222       controlreply(sender, "Done.");
 223       return CMD_OK;
 224     }
 225   }
 226
 227   controlreply(sender, "Nickwatch #%d not found.", id);
 228
 229   return CMD_ERROR;
 230 }
 231
 232 static int nw_cmd_nickwatches(void *source, int cargc, char **cargv) {
 233   nick *sender = source;
 234   nickwatch *nw;
 235
 236   controlreply(sender, "ID    Created By      Hits    Term");
 237
 238   for (nw = nickwatches; nw; nw = nw->next)
 239     controlreply(sender, "%-5d %-15s %-7d %s", nw->id, nw->createdby, nw->hits, nw->term);
 240
 241   controlreply(sender, "--- End of nickwatches.");
 242
 243   return CMD_OK;
 244 }
 245
 246 void _init(void) {
 247   nickwatchext = registernickext("nickwatch");
 248
 249   array_init(&nw_pendingnicks, sizeof(nick *));
 250
 251   registercontrolhelpcmd("nickwatch", NO_OPER, 1, &nw_cmd_nickwatch, "Usage: nickwatch <nicksearch term>\nAdds a nickwatch entry.");
 252   registercontrolhelpcmd("nickunwatch", NO_OPER, 1, &nw_cmd_nickunwatch, "Usage: nickunwatch <#id>\nRemoves a nickwatch entry.");
 253   registercontrolhelpcmd("nickwatches", NO_OPER, 0, &nw_cmd_nickwatches, "Usage: nickwatches\nLists nickwatches.");
 254
 255   registerhook(HOOK_NICK_NEWNICK, &nw_hook_newnick);
 256   registerhook(HOOK_NICK_ACCOUNT, &nw_hook_account);
 257   registerhook(HOOK_NICK_LOSTNICK, &nw_hook_lostnick);
 258   registerhook(HOOK_NICK_RENAME, &nw_hook_rename);
 259   registerhook(HOOK_NICK_MODECHANGE, &nw_hook_umodechange);
 260   registerhook(HOOK_NICK_MESSAGE, &nw_hook_message);
 261   registerhook(HOOK_CHANNEL_CREATE, &nw_hook_joinchannel);
 262   registerhook(HOOK_CHANNEL_JOIN, &nw_hook_joinchannel);
 263
 264   schedulerecurring(time(NULL) + 5, 0, 1, &nw_sched_processevents, NULL);
 265 }
 266
 267 void _fini(void) {
 268   nickwatch *nw, *next;
 269
 270   deregistercontrolcmd("nickwatch", &nw_cmd_nickwatch);
 271   deregistercontrolcmd("nickunwatch", &nw_cmd_nickunwatch);
 272   deregistercontrolcmd("nickwatches", &nw_cmd_nickwatches);
 273
 274   deregisterhook(HOOK_NICK_NEWNICK, &nw_hook_newnick);
 275   deregisterhook(HOOK_NICK_ACCOUNT, &nw_hook_account);
 276   deregisterhook(HOOK_NICK_LOSTNICK, &nw_hook_lostnick);
 277   deregisterhook(HOOK_NICK_RENAME, &nw_hook_rename);
 278   deregisterhook(HOOK_NICK_MODECHANGE, &nw_hook_umodechange);
 279   deregisterhook(HOOK_NICK_MESSAGE, &nw_hook_message);
 280   deregisterhook(HOOK_CHANNEL_CREATE, &nw_hook_joinchannel);
 281   deregisterhook(HOOK_CHANNEL_JOIN, &nw_hook_joinchannel);
 282
 283   deleteallschedules(&nw_sched_processevents);
 284
 285   /* Process all pending events */
 286   nw_sched_processevents(NULL);
 287
 288   array_free(&nw_pendingnicks);
 289
 290   releasenickext(nickwatchext);
 291
 292   for (nw = nickwatches; nw; nw = next) {
 293     next = nw->next;
 294
 295     parse_free(nw->tree);
 296     free(nw);
 297   }
 298 }