X-Git-Url: https://jfr.im/git/solanum.git/blobdiff_plain/4016731b1cf38951bc7566e7bc3ca8ebb8f282b4..6a0074bfaa195daa621ec6348f2abc2720e65ab0:/modules/m_whois.c

diff --git a/modules/m_whois.c b/modules/m_whois.c
index 516863e5..68bb17c9 100644
--- a/modules/m_whois.c
+++ b/modules/m_whois.c
@@ -20,12 +20,9 @@
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
  *  USA
- *
- *  $Id: m_whois.c 3536 2007-07-14 21:50:21Z jilles $
  */
 
 #include "stdinc.h"
-#include "common.h"
 #include "client.h"
 #include "hash.h"
 #include "channel.h"
@@ -35,8 +32,7 @@
 #include "s_conf.h"
 #include "s_serv.h"
 #include "send.h"
-#include "irc_string.h"
-#include "sprintf_irc.h"
+#include "match.h"
 #include "s_conf.h"
 #include "logger.h"
 #include "msg.h"
@@ -44,37 +40,45 @@
 #include "modules.h"
 #include "hook.h"
 #include "s_newconf.h"
+#include "ratelimit.h"
+#include "s_assert.h"
+
+static const char whois_desc[] =
+	"Provides the WHOIS command to display information about a user";
 
 static void do_whois(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
 static void single_whois(struct Client *source_p, struct Client *target_p, int operspy);
 
-static int m_whois(struct Client *, struct Client *, int, const char **);
-static int ms_whois(struct Client *, struct Client *, int, const char **);
+static void m_whois(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
+static void ms_whois(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
 
 struct Message whois_msgtab = {
-	"WHOIS", 0, 0, 0, MFLG_SLOW,
+	"WHOIS", 0, 0, 0, 0,
 	{mg_unreg, {m_whois, 2}, {ms_whois, 2}, mg_ignore, mg_ignore, {m_whois, 2}}
 };
 
 int doing_whois_hook;
 int doing_whois_global_hook;
+int doing_whois_channel_visibility_hook;
+int doing_whois_show_idle_hook;
 
 mapi_clist_av1 whois_clist[] = { &whois_msgtab, NULL };
 mapi_hlist_av1 whois_hlist[] = {
-	{ "doing_whois",	&doing_whois_hook },
-	{ "doing_whois_global",	&doing_whois_global_hook },
+	{ "doing_whois",			&doing_whois_hook },
+	{ "doing_whois_global",			&doing_whois_global_hook },
+	{ "doing_whois_channel_visibility",	&doing_whois_channel_visibility_hook },
+	{ "doing_whois_show_idle",		&doing_whois_show_idle_hook },
 	{ NULL, NULL }
 };
 
-DECLARE_MODULE_AV1(whois, NULL, NULL, whois_clist, whois_hlist, NULL, "$Revision: 3536 $");
+DECLARE_MODULE_AV2(whois, NULL, NULL, whois_clist, whois_hlist, NULL, NULL, NULL, whois_desc);
 
 /*
  * m_whois
- *      parv[0] = sender prefix
  *      parv[1] = nickname masklist
  */
-static int
-m_whois(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
+static void
+m_whois(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 {
 	static time_t last_used = 0;
 
@@ -84,19 +88,19 @@ m_whois(struct Client *client_p, struct Client *source_p, int parc, const char *
 		{
 			sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
 					me.name, source_p->name);
-			return 0;
+			return;
 		}
 
-		if(!IsOper(source_p))
+		if(!IsOperGeneral(source_p))
 		{
 			/* seeing as this is going across servers, we should limit it */
-			if((last_used + ConfigFileEntry.pace_wait_simple) > rb_current_time())
+			if((last_used + ConfigFileEntry.pace_wait_simple) > rb_current_time() || !ratelimit_client(source_p, 2))
 			{
 				sendto_one(source_p, form_str(RPL_LOAD2HI),
 					   me.name, source_p->name, "WHOIS");
-				sendto_one_numeric(source_p, RPL_ENDOFWHOIS, 
+				sendto_one_numeric(source_p, RPL_ENDOFWHOIS,
 						   form_str(RPL_ENDOFWHOIS), parv[2]);
-				return 0;
+				return;
 			}
 			else
 				last_used = rb_current_time();
@@ -104,24 +108,21 @@ m_whois(struct Client *client_p, struct Client *source_p, int parc, const char *
 
 		if(hunt_server(client_p, source_p, ":%s WHOIS %s :%s", 1, parc, parv) !=
 		   HUNTED_ISME)
-			return 0;
+			return;
 
 		parv[1] = parv[2];
 
 	}
 	do_whois(client_p, source_p, parc, parv);
-
-	return 0;
 }
 
 /*
  * ms_whois
- *      parv[0] = sender prefix
  *      parv[1] = server to reply
  *      parv[2] = nickname to whois
  */
-static int
-ms_whois(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
+static void
+ms_whois(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 {
 	struct Client *target_p;
 
@@ -133,27 +134,27 @@ ms_whois(struct Client *client_p, struct Client *source_p, int parc, const char
 	{
 		sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
 				me.name, source_p->name);
-		return 0;
+		return;
 	}
 
 	/* check if parv[1] exists */
 	if((target_p = find_client(parv[1])) == NULL)
 	{
 		sendto_one_numeric(source_p, ERR_NOSUCHSERVER,
-				   form_str(ERR_NOSUCHSERVER), 
+				   form_str(ERR_NOSUCHSERVER),
 				   IsDigit(parv[1][0]) ? "*" : parv[1]);
-		return 0;
+		return;
 	}
 
 	/* if parv[1] isnt my client, or me, someone else is supposed
-	 * to be handling the request.. so send it to them 
+	 * to be handling the request.. so send it to them
 	 */
 	if(!MyClient(target_p) && !IsMe(target_p))
 	{
-		sendto_one(target_p, ":%s WHOIS %s :%s", 
-			   get_id(source_p, target_p), 
+		sendto_one(target_p, ":%s WHOIS %s :%s",
+			   get_id(source_p, target_p),
 			   get_id(target_p, target_p), parv[2]);
-		return 0;
+		return;
 	}
 
 	/* ok, the target is either us, or a client on our server, so perform the whois
@@ -162,14 +163,12 @@ ms_whois(struct Client *client_p, struct Client *source_p, int parc, const char
 	 */
 	parv[1] = parv[2];
 	do_whois(client_p, source_p, parc, parv);
-
-	return 0;
 }
 
 /* do_whois
  *
- * inputs	- pointer to 
- * output	- 
+ * inputs	- pointer to
+ * output	-
  * side effects -
  */
 static void
@@ -191,7 +190,6 @@ do_whois(struct Client *client_p, struct Client *source_p, int parc, const char
 	}
 
 	target_p = find_named_person(nick);
-
 	if(target_p != NULL)
 	{
 		if(operspy)
@@ -208,12 +206,11 @@ do_whois(struct Client *client_p, struct Client *source_p, int parc, const char
 	}
 	else
 		sendto_one_numeric(source_p, ERR_NOSUCHNICK,
-				   form_str(ERR_NOSUCHNICK), 
+				   form_str(ERR_NOSUCHNICK),
 				   nick);
 
-	sendto_one_numeric(source_p, RPL_ENDOFWHOIS, 
+	sendto_one_numeric(source_p, RPL_ENDOFWHOIS,
 			   form_str(RPL_ENDOFWHOIS), parv[1]);
-	return;
 }
 
 /*
@@ -229,23 +226,8 @@ static void
 single_whois(struct Client *source_p, struct Client *target_p, int operspy)
 {
 	char buf[BUFSIZE];
-	rb_dlink_node *ptr;
-	struct membership *msptr;
-	struct Channel *chptr;
-	int cur_len = 0;
-	int mlen;
-	char *t;
-	int tlen;
 	hook_data_client hdata;
-	char *name;
-	char quest[] = "?";
-	int visible;
-	int extra_space = 0;
-
-	if(target_p->name[0] == '\0')
-		name = quest;
-	else
-		name = target_p->name;
+	struct sockaddr_in ip4;
 
 	if(target_p->user == NULL)
 	{
@@ -254,58 +236,56 @@ single_whois(struct Client *source_p, struct Client *target_p, int operspy)
 	}
 
 	sendto_one_numeric(source_p, RPL_WHOISUSER, form_str(RPL_WHOISUSER),
-			   target_p->name, target_p->username, 
+			   target_p->name, target_p->username,
 			   target_p->host, target_p->info);
 
-	cur_len = mlen = rb_sprintf(buf, form_str(RPL_WHOISCHANNELS), 
-				    get_id(&me, source_p), get_id(source_p, source_p), 
+	send_multiline_init(source_p, " ", form_str(RPL_WHOISCHANNELS),
+				    get_id(&me, source_p), get_id(source_p, source_p),
 				    target_p->name);
 
 	/* Make sure it won't overflow when sending it to the client
 	 * in full names; note that serverhiding may require more space
 	 * for a different server name (not done here) -- jilles
 	 */
-	if (!MyConnect(source_p))
-	{
-		extra_space = strlen(source_p->name) - 9;
-		if (extra_space < 0)
-			extra_space = 0;
-		extra_space += strlen(me.name) - 2; /* make sure >= 0 */
-		cur_len += extra_space;
-	}
+	send_multiline_remote_pad(source_p, &me);
+	send_multiline_remote_pad(source_p, source_p);
 
-	t = buf + mlen;
+	hdata.client = source_p;
+	hdata.target = target_p;
 
 	if (!IsService(target_p))
 	{
-		RB_DLINK_FOREACH(ptr, target_p->user->channel.head)
+		hook_data_channel_visibility hdata_vis;
+		rb_dlink_node *ps, *pt;
+		struct Channel *chptr;
+		struct membership *ms, *mt;
+
+		hdata_vis.client = source_p;
+		hdata_vis.target = target_p;
+
+		ITER_COMM_CHANNELS(ps, pt, source_p->user->channel.head, target_p->user->channel.head, ms, mt, chptr)
 		{
-			msptr = ptr->data;
-			chptr = msptr->chptr;
+			if (mt == NULL)
+				continue;
 
-			visible = ShowChannel(source_p, chptr);
+			hdata_vis.chptr = chptr;
+			hdata_vis.clientms = ms;
+			hdata_vis.targetms = mt;
+			hdata_vis.approved = ms != NULL || PubChannel(chptr);
 
-			if(visible || operspy)
+			call_hook(doing_whois_channel_visibility_hook, &hdata_vis);
+
+			if(hdata_vis.approved || operspy)
 			{
-				if((cur_len + strlen(chptr->chname) + 3) > (BUFSIZE - 5))
-				{
-					sendto_one(source_p, "%s", buf);
-					cur_len = mlen + extra_space;
-					t = buf + mlen;
-				}
-
-				tlen = rb_sprintf(t, "%s%s%s ",
-						visible ? "" : "!",
-						find_channel_status(msptr, 1),
+				send_multiline_item(source_p, "%s%s%s",
+						hdata_vis.approved ? "" : "!",
+						find_channel_status(mt, 1),
 						chptr->chname);
-				t += tlen;
-				cur_len += tlen;
 			}
 		}
 	}
 
-	if(cur_len > mlen + extra_space)
-		sendto_one(source_p, "%s", buf);
+	send_multiline_fini(source_p, NULL);
 
 	sendto_one_numeric(source_p, RPL_WHOISSERVER, form_str(RPL_WHOISSERVER),
 			   target_p->name, target_p->servptr->name,
@@ -315,18 +295,58 @@ single_whois(struct Client *source_p, struct Client *target_p, int operspy)
 		sendto_one_numeric(source_p, RPL_AWAY, form_str(RPL_AWAY),
 				   target_p->name, target_p->user->away);
 
-	if(IsOper(target_p))
+	char *s = NULL;
+	if (IsService(target_p))
+	{
+		s = ConfigFileEntry.servicestring;
+	}
+	if (!EmptyString(target_p->user->opername) && IsOper(target_p))
+	{
+		if (target_p == source_p || HasPrivilege(source_p, "oper:privs"))
+		{
+			const char *privset = "(missing)";
+			if (target_p->user->privset != NULL)
+				privset = target_p->user->privset->name;
+			snprintf(buf, sizeof buf, "is opered as %s, privset %s", target_p->user->opername, privset);
+			s = buf;
+		}
+		else if (IsOper(source_p) && SeesOper(target_p, source_p))
+		{
+			snprintf(buf, sizeof buf, "is opered as %s", target_p->user->opername);
+			s = buf;
+		}
+		else if (!ConfigFileEntry.hide_opers_in_whois && SeesOper(target_p, source_p))
+		{
+			s = IsAdmin(target_p) ? GlobalSetOptions.adminstring :
+			    GlobalSetOptions.operstring;
+		}
+	}
+	if (s != NULL)
 	{
 		sendto_one_numeric(source_p, RPL_WHOISOPERATOR, form_str(RPL_WHOISOPERATOR),
-				   target_p->name,
-				   IsService(target_p) ? ConfigFileEntry.servicestring :
-				   (IsAdmin(target_p) ? GlobalSetOptions.adminstring :
-				    GlobalSetOptions.operstring));
+				target_p->name, s);
+	}
+
+	if(IsSecureClient(target_p))
+	{
+		char cbuf[256] = "is using a secure connection";
+
+		if (MyClient(target_p) && target_p->localClient->cipher_string != NULL &&
+				(!ConfigFileEntry.tls_ciphers_oper_only || source_p == target_p || IsOper(source_p)))
+			rb_snprintf_append(cbuf, sizeof(cbuf), " [%s]", target_p->localClient->cipher_string);
+
+		sendto_one_numeric(source_p, RPL_WHOISSECURE, form_str(RPL_WHOISSECURE),
+				   target_p->name, cbuf);
+		if((source_p == target_p || IsOperGeneral(source_p)) &&
+				target_p->certfp != NULL)
+			sendto_one_numeric(source_p, RPL_WHOISCERTFP,
+					form_str(RPL_WHOISCERTFP),
+					target_p->name, target_p->certfp);
 	}
 
 	if(MyClient(target_p))
 	{
-		if (IsDynSpoof(target_p) && (IsOper(source_p) || source_p == target_p))
+		if (IsDynSpoof(target_p) && (HasPrivilege(source_p, "auspex:hostname") || source_p == target_p))
 		{
 			/* trick here: show a nonoper their own IP if
 			 * dynamic spoofed but not if auth{} spoofed
@@ -343,14 +363,39 @@ single_whois(struct Client *source_p, struct Client *target_p, int operspy)
 					   form_str(RPL_WHOISACTUALLY),
 					   target_p->name, target_p->sockhost);
 
+		if (GET_SS_FAMILY(&target_p->localClient->ip) == AF_INET6 &&
+				(show_ip(source_p, target_p) ||
+				 (source_p == target_p && !IsIPSpoof(target_p))) &&
+				rb_ipv4_from_ipv6((struct sockaddr_in6 *)&target_p->localClient->ip, &ip4))
+		{
+			rb_inet_ntop_sock((struct sockaddr *)&ip4,
+					buf, sizeof buf);
+			sendto_one_numeric(source_p, RPL_WHOISTEXT,
+					"%s :Underlying IPv4 is %s",
+					target_p->name, buf);
+		}
+
+		/* fire the doing_whois_show_idle hook to allow modules to tell us whether to show the idle time */
+		hook_data_client_approval hdata_showidle;
+
+		hdata_showidle.client = source_p;
+		hdata_showidle.target = target_p;
+		hdata_showidle.approved = WHOIS_IDLE_SHOW;
+
+		call_hook(doing_whois_show_idle_hook, &hdata_showidle);
+
 		sendto_one_numeric(source_p, RPL_WHOISIDLE, form_str(RPL_WHOISIDLE),
-				   target_p->name, 
-				   rb_current_time() - target_p->localClient->last, 
-				   target_p->localClient->firsttime);
+			   target_p->name,
+			   hdata_showidle.approved ? (long)(rb_current_time() - target_p->localClient->last) : 0,
+			   (unsigned long)target_p->localClient->firsttime);
+
+		if (hdata_showidle.approved == WHOIS_IDLE_AUSPEX || hdata_showidle.approved == WHOIS_IDLE_HIDE)
+			/* if the target has hidden their idle time, notify the source */
+			sendto_one_numeric(source_p, RPL_WHOISTEXT, form_str(RPL_WHOISTEXT), target_p->name, "is using a private idle time");
 	}
 	else
 	{
-		if (IsDynSpoof(target_p) && (IsOper(source_p) || source_p == target_p))
+		if (IsDynSpoof(target_p) && (HasPrivilege(source_p, "auspex:hostname") || source_p == target_p))
 		{
 			ClearDynSpoof(target_p);
 			sendto_one_numeric(source_p, RPL_WHOISHOST,
@@ -365,14 +410,10 @@ single_whois(struct Client *source_p, struct Client *target_p, int operspy)
 			sendto_one_numeric(source_p, RPL_WHOISACTUALLY,
 					   form_str(RPL_WHOISACTUALLY),
 					   target_p->name, target_p->sockhost);
-			
+
 		}
-	
 	}
 
-	hdata.client = source_p;
-	hdata.target = target_p;
-
 	/* doing_whois_hook must only be called for local clients,
 	 * doing_whois_global_hook must only be called for local targets
 	 */
@@ -383,7 +424,4 @@ single_whois(struct Client *source_p, struct Client *target_p, int operspy)
 		call_hook(doing_whois_hook, &hdata);
 	else
 		call_hook(doing_whois_global_hook, &hdata);
-
-	return;
 }
-