Add userhost-in-names capability

doc/sphinx_source/using/ircv3.rst

@@ -41,6 +41,14 @@ The following capabilities are supported by Eggdrop:
  * Monitor
  * server-time
  * setname
+ * userhost-in-names
  * +typing
 
-Copyright (C) 2010 - 2023 Eggheads Development Team
+------
+Errata
+------
+
+* Enabling echo-message will cause Eggdrop to trigger PUB/PUBM binds on its own messages (because now it can actually see them). This may cause unintentional functionality with some scripts
+* Enabling userhost-in-names will cause Eggdrop's internal mechanisms to mark a channel's userlist as synch'd upon receiving the NAMES list after a join, instead of waiting for a full WHO listing. This is done because the assumption is that userhost-in-names was enabled as a response to WHO queries being disabled on a server, which prevents Eggdrop from populating its userlist. To avoid unintended functionality, it is suggested that this capability only be enabled on servers that disable WHO queries.
+
+Copyright (C) 2010 - 2023 Eggheads Development Team

src/mod/irc.mod/chan.c

@@ -1335,6 +1335,61 @@ static int got354(char *from, char *msg)
   return 0;
 }
 
+/* got 353: NAMES
+ * <server> 353 <chan> :[+/@]nick [+/@]nick ....
+ *
+ * if userhost-in-names is enabled, nick is [email protected]
+ * this function is added solely to handle userhost-in-names stuff, and will
+ * update hostnames for nicks received
+ */
+static int got353(char *from, char *msg)
+{
+  char *nameptr, *chname, *uhost, *nick, *p, *host;
+  struct chanset_t *chan;
+  int i;
+
+  if (find_capability("userhost-in-names")) {
+    newsplit(&msg);
+    newsplit(&msg); /* Get rid of =/@ prefix */
+    chname = newsplit(&msg);
+    nameptr = newsplit(&msg);
+    while ((uhost = newsplit(&nameptr))) {
+      if (!strcmp(uhost, "")) {
+        break;
+      }
+      fixcolon(uhost);
+      nick = splitnick(&uhost);
+      /* Strip @, +, etc chars prefixed to nicks in NAMES */
+      for (i = 0; opchars[i]; i++) {
+        if(nick[0] == opchars[i]) {
+          nick=nick+1;
+        }
+      }
+      if ((nick[0] == '+') || (nick[0] == '%')) {
+        nick=nick+1;
+      }
+      p = strchr(uhost, '@');
+      if (p) {
+        *p = 0;
+        host = p+1;
+      }
+      chan = findchan(chname);      /* See if I'm on channel */
+      if (chan && uhost && host) {
+        got352or4(chan, uhost, host, nick, "", NULL);
+      }
+    }
+    /* The assumption here is the user enabled userhost-in-names because WHO
+     * is disabled. We remove the pending flag here because we'll never get a
+     * a WHO to do it
+     */
+    if (chan) {
+      chan->status |= CHAN_ACTIVE;
+      chan->status &= ~CHAN_PEND;
+    }
+  }
+  return 0;
+}
+
 
 /* got 315: end of who
  * <server> 315 <to> <chan> :End of /who
@@ -2997,6 +3052,7 @@ static int gotrawt(char *from, char *msg, Tcl_Obj *tags) {
 static cmd_t irc_raw[] = {
   {"324",     "",   (IntFunc) got324,          "irc:324"},
   {"352",     "",   (IntFunc) got352,          "irc:352"},
+  {"353",     "",   (IntFunc) got353,          "irc:353"},
   {"354",     "",   (IntFunc) got354,          "irc:354"},
   {"315",     "",   (IntFunc) got315,          "irc:315"},
   {"366",     "",   (IntFunc) gottwitch366,   "irc:t366"},