]> jfr.im git - irc/quakenet/newserv.git/blobdiff - whowas/whowas.c
CHANSERV: remove accidental sendemail from SETEMAIL command.
[irc/quakenet/newserv.git] / whowas / whowas.c
index 439caea9b76c29e7354260954b2d7f620289bc1d..9e2cdb3c74d6f9e753a3e3445a24a2549e514a51 100644 (file)
-#include <stdio.h>
 #include <string.h>
+#include <stdio.h>
 #include "../core/hooks.h"
 #include "../control/control.h"
 #include "../irc/irc.h"
 #include "../lib/irc_string.h"
 #include "../lib/version.h"
+#include "../core/config.h"
 #include "whowas.h"
 
 MODULE_VERSION("");
 
-whowas *whowas_head = NULL, *whowas_tail = NULL;
-int whowas_count = 0;
+whowas *whowasrecs;
+int whowasoffset = 0;
+int whowasmax;
 
-whowas *whowas_fromnick(nick *np) {
+whowas *whowas_fromnick(nick *np, int standalone) {
   whowas *ww;
+  nick *wnp;
+  struct irc_in_addr ipaddress_canonical;
+  void *args[2];
 
   /* Create a new record. */
-  ww = malloc(sizeof(whowas));
-  memset(ww, 0, sizeof(whowas));
-  strncpy(ww->nick, np->nick, NICKLEN);
-  strncpy(ww->ident, np->ident, USERLEN);
-  strncpy(ww->host, np->host->name->content, HOSTLEN);
-  memcpy(&ww->ip, &np->p_ipaddr, sizeof(struct irc_in_addr));
-  strncpy(ww->realname, np->realname->name->content, REALLEN);
-  ww->seen = getnettime();
-
-  return ww;
-}
+  if (standalone)
+    ww = malloc(sizeof(whowas));
+  else {
+    ww = &whowasrecs[whowasoffset];
+    whowas_clean(ww);
+    whowasoffset = (whowasoffset + 1) % whowasmax;
+  }
 
-void whowas_linkrecord(whowas *ww) {
-  if (whowas_head)
-    whowas_head->prev = ww;
+  memset(ww, 0, sizeof(whowas));
 
-  ww->next = whowas_head;
-  whowas_head = ww;
+  wnp = &ww->nick;
+  memset(wnp, 0, sizeof(nick));
+  strncpy(wnp->nick, np->nick, NICKLEN + 1);
+  wnp->numeric = np->numeric;
+  strncpy(wnp->ident, np->ident, USERLEN + 1);
+
+  wnp->host = newhost();
+  memset(wnp->host, 0, sizeof(host));
+  wnp->host->name = getsstring(np->host->name->content, HOSTLEN);
+
+  wnp->realname = newrealname();
+  memset(wnp->realname, 0, sizeof(realname));
+  wnp->realname->name = getsstring(np->realname->name->content, REALLEN);
+  wnp->shident = np->shident ? getsstring(np->shident->content, 512) : NULL;
+  wnp->sethost = np->sethost ? getsstring(np->sethost->content, 512) : NULL;
+  wnp->opername = np->opername ? getsstring(np->opername->content, 512) : NULL;
+  wnp->umodes = np->umodes;
+  if (np->auth) {
+    wnp->auth = newauthname();
+    memset(wnp->auth, 0, sizeof(authname));
+    wnp->auth->userid = np->auth->userid;
+    strncpy(wnp->auth->name, np->auth->name, ACCOUNTLEN + 1);
+    wnp->authname = wnp->auth->name;
+  }
+  wnp->timestamp = np->timestamp;
+  wnp->accountts = np->accountts;
+  wnp->away = np->away ? getsstring(np->away->content, 512) : NULL;
 
-  ww->prev = NULL;
+  memcpy(&wnp->ipaddress, &np->ipaddress, sizeof(struct irc_in_addr));
 
-  if (!whowas_tail)
-    whowas_tail = ww;
+  ip_canonicalize_tunnel(&ipaddress_canonical, &np->ipaddress);
+  wnp->ipnode = refnode(iptree, &ipaddress_canonical, PATRICIA_MAXBITS);
 
-  whowas_count++;
-}
+  wnp->next = (nick *)ww; /* Yuck. */
 
-void whowas_unlinkrecord(whowas *ww) {
-  if (!ww->next)
-    whowas_tail = ww->prev;
+  ww->timestamp = getnettime();
+  ww->type = WHOWAS_USED;
 
-  if (ww->prev)
-    ww->prev->next = NULL;
-  else
-    whowas_head = ww->prev;
+  args[0] = ww;
+  args[1] = np;
+  triggerhook(HOOK_WHOWAS_NEWRECORD, args);
 
-  whowas_count--;
+  return ww;
 }
 
-static void whowas_cleanup(void) {
-  time_t now;
-
-  time(&now);
+void whowas_clean(whowas *ww) {
+  nick *np;
+
+  if (!ww || ww->type == WHOWAS_UNUSED)
+    return;
+
+  triggerhook(HOOK_WHOWAS_LOSTRECORD, ww);
+
+  np = &ww->nick;
+  freesstring(np->host->name);
+  freehost(np->host);
+  freesstring(np->realname->name);
+  freerealname(np->realname);
+  freesstring(np->shident);
+  freesstring(np->sethost);
+  freesstring(np->opername);
+  freeauthname(np->auth);
+  freesstring(np->away);
+  derefnode(iptree, np->ipnode);
+  freesstring(ww->reason);
+  freesstring(ww->newnick);
+  ww->type = WHOWAS_UNUSED;
+}
 
-  /* Clean up old records. */
-  while (whowas_tail && (whowas_tail->seen < now - WW_MAXAGE || whowas_count >= WW_MAXENTRIES)) {
-    whowas_unlinkrecord(whowas_tail);
-    free(whowas_tail);
-  }
+void whowas_free(whowas *ww) {
+  whowas_clean(ww);
+  free(ww);
 }
 
 static void whowas_handlequitorkill(int hooknum, void *arg) {
@@ -75,10 +113,8 @@ static void whowas_handlequitorkill(int hooknum, void *arg) {
   char resbuf[512];
   whowas *ww;
 
-  whowas_cleanup();
-
   /* Create a new record. */
-  ww = whowas_fromnick(np);
+  ww = whowas_fromnick(np, 0);
 
   if (hooknum == HOOK_NICK_KILL) {
     if ((rreason = strchr(reason, ' '))) {
@@ -87,12 +123,14 @@ static void whowas_handlequitorkill(int hooknum, void *arg) {
     }
 
     ww->type = WHOWAS_KILL;
-  } else
-    ww->type = WHOWAS_QUIT;
+  } else {
+    if (strncmp(reason, "G-lined", 7) == 0)
+      ww->type = WHOWAS_KILL;
+    else
+      ww->type = WHOWAS_QUIT;
+  }
 
   ww->reason = getsstring(reason, WW_REASONLEN);
-
-  whowas_linkrecord(ww);
 }
 
 static void whowas_handlerename(int hooknum, void *arg) {
@@ -100,46 +138,133 @@ static void whowas_handlerename(int hooknum, void *arg) {
   nick *np = args[0];
   char *oldnick = args[1];
   whowas *ww;
+  nick *wnp;
 
-  whowas_cleanup();
-
-  ww = whowas_fromnick(np);
+  ww = whowas_fromnick(np, 0);
   ww->type = WHOWAS_RENAME;
-  ww->newnick = getsstring(ww->nick, NICKLEN);
-  strncpy(ww->nick, oldnick, NICKLEN);
-  ww->nick[NICKLEN] = '\0';
-
-  whowas_linkrecord(ww);
+  wnp = &ww->nick;
+  ww->newnick = getsstring(wnp->nick, NICKLEN);
+  strncpy(wnp->nick, oldnick, NICKLEN + 1);
 }
 
-whowas *whowas_chase(const char *nick, int maxage) {
+whowas *whowas_chase(const char *target, int maxage) {
   whowas *ww;
+  nick *wnp;
   time_t now;
+  int i;
 
   now = getnettime();
 
-  for (ww = whowas_head; ww; ww = ww->next) {
-    if (ww->seen < now - maxage)
+  for (i = whowasoffset + whowasmax - 1; i >= whowasoffset; i--) {
+    ww = &whowasrecs[i % whowasmax];
+
+    if (ww->type == WHOWAS_UNUSED)
+      continue;
+
+    wnp = &ww->nick;
+
+    if (ww->timestamp < now - maxage)
       break; /* records are in timestamp order, we're done */
 
-    if (ircd_strcmp(ww->nick, nick) == 0)
+    if (ircd_strcmp(wnp->nick, target) == 0)
       return ww;
   }
 
   return NULL;
 }
 
+const char *whowas_format(whowas *ww) {
+  nick *np = &ww->nick;
+  static char buf[512];
+  char timebuf[30];
+  char hostmask[512];
+
+  snprintf(hostmask, sizeof(hostmask), "%s!%s@%s%s%s [%s] (%s)",
+           np->nick, np->ident, np->host->name->content,
+           np->auth ? "/" : "", np->auth ? np->authname : "",
+           IPtostr(np->ipaddress),
+           printflags(np->umodes, umodeflags));
+  strftime(timebuf, sizeof(timebuf), "%d/%m/%y %H:%M:%S", localtime(&(ww->timestamp)));
+
+  if (ww->type == WHOWAS_RENAME)
+    snprintf(buf, sizeof(buf), "[%s] NICK %s r(%s) -> %s", timebuf, hostmask, np->realname->name->content, ww->newnick->content);
+  else
+    snprintf(buf, sizeof(buf), "[%s] %s %s r(%s): %s", timebuf, (ww->type == WHOWAS_QUIT) ? "QUIT" : "KILL", hostmask, np->realname->name->content, ww->reason->content);
+
+  return buf;
+}
+
+const char *whowas_formatchannels(whowas *ww) {
+  static char buf[512];
+  int i, first = 1;
+
+  strcpy(buf, "Channels: ");
+
+  for (i = 0; i < WW_MAXCHANNELS; i++) {
+    if (!ww->channels[i])
+      break;
+
+    if (!first)
+      strncat(buf, ", ", sizeof(buf));
+    else
+      first = 0;
+
+    strncat(buf, ww->channels[i]->name->content, sizeof(buf));
+  }
+
+  if (!ww->channels[0])
+    strncat(buf, "(No channels.)", sizeof(buf));
+
+  buf[sizeof(buf) - 1] = '\0';
+
+  return buf;
+}
+
+unsigned int nextwhowasmarker() {
+  whowas *ww;
+  int i;
+  static unsigned int whowasmarker=0;
+
+  whowasmarker++;
+
+  if (!whowasmarker) {
+    /* If we wrapped to zero, zap the marker on all records */
+    for (i = 0; i < whowasmax; i++) {
+      ww = &whowasrecs[i % whowasmax];
+      ww->marker=0;
+    }
+
+    whowasmarker++;
+  }
+
+  return whowasmarker;
+}
+
 void _init(void) {
+  {
+    sstring *temp = getcopyconfigitem("whowas", "maxentries", XStringify(WW_DEFAULT_MAXENTRIES), 10);
+    whowasmax = atoi(temp->content);
+    freesstring(temp);
+  }
+  whowasrecs = calloc(whowasmax, sizeof(whowas));
+
   registerhook(HOOK_NICK_QUIT, whowas_handlequitorkill);
   registerhook(HOOK_NICK_KILL, whowas_handlequitorkill);
   registerhook(HOOK_NICK_RENAME, whowas_handlerename);
 }
 
 void _fini(void) {
+  int i;
+  whowas *ww;
+
   deregisterhook(HOOK_NICK_QUIT, whowas_handlequitorkill);
   deregisterhook(HOOK_NICK_KILL, whowas_handlequitorkill);
   deregisterhook(HOOK_NICK_RENAME, whowas_handlerename);
 
-  while (whowas_head)
-    whowas_unlinkrecord(whowas_head);
+  for (i = 0; i < whowasmax; i++) {
+    ww = &whowasrecs[i];
+    whowas_clean(ww);
+  }
+
+  free(whowasrecs);
 }