Merge pull request #341 from ophion-project/upstream/modularize-regonlymsg

modularize regonlymsg

include/client.h

@@ -452,7 +452,6 @@ struct ListClient
 #define UMODE_SERVICE      0x0040
 #define UMODE_DEAF	   0x0080
 #define UMODE_NOFORWARD    0x0100	/* don't forward */
-#define UMODE_REGONLYMSG   0x0200	/* only allow logged in users to msg */
 
 /* user information flags, only settable by remote mode or local oper */
 #define UMODE_OPER         0x1000	/* Operator */
@@ -543,7 +542,6 @@ struct ListClient
 #define IsService(x)		((x)->umodes & UMODE_SERVICE)
 #define IsDeaf(x)		((x)->umodes & UMODE_DEAF)
 #define IsNoForward(x)		((x)->umodes & UMODE_NOFORWARD)
-#define IsSetRegOnlyMsg(x)	((x)->umodes & UMODE_REGONLYMSG)
 
 #define SetGotId(x)             ((x)->flags |= FLAGS_GOTID)
 #define IsGotId(x)              (((x)->flags & FLAGS_GOTID) != 0)

ircd/newconf.c

@@ -321,7 +321,6 @@ static struct mode_table umode_table[] = {
 	{"invisible",	UMODE_INVISIBLE	},
 	{"locops",	UMODE_LOCOPS	},
 	{"noforward",	UMODE_NOFORWARD	},
-	{"regonlymsg",	UMODE_REGONLYMSG},
 	{"servnotice",	UMODE_SERVNOTICE},
 	{"wallop",	UMODE_WALLOP	},
 	{"operwall",	UMODE_OPERWALL	},

ircd/s_user.c

@@ -81,7 +81,7 @@ int user_modes[256] = {
 	0,			/* O */
 	0,			/* P */
 	UMODE_NOFORWARD,	/* Q */
-	UMODE_REGONLYMSG,	/* R */
+	0,			/* R */
 	UMODE_SERVICE,		/* S */
 	0,			/* T */
 	0,			/* U */

modules/Makefile.am

@@ -15,6 +15,7 @@ auto_load_mod_LTLIBRARIES = \
   cap_server_time.la \
   chm_nocolour.la \
   chm_noctcp.la \
+  um_regonlymsg.la \
   m_accept.la \
   m_admin.la \
   m_alias.la \

modules/core/m_message.c

@@ -725,8 +725,7 @@ msg_client(enum message_type msgtype,
 		 * as a way of griefing.  --nenolod
 		 */
 		if(msgtype != MESSAGE_TYPE_NOTICE &&
-				(IsSetCallerId(source_p) ||
-				 (IsSetRegOnlyMsg(source_p) && !target_p->user->suser[0])) &&
+				IsSetCallerId(source_p) &&
 				!accept_message(target_p, source_p) &&
 				!IsOper(target_p))
 		{
@@ -818,8 +817,7 @@ msg_client(enum message_type msgtype,
 		}
 
 		/* XXX Controversial? allow opers always to send through a +g */
-		if(!IsServer(source_p) && (IsSetCallerId(target_p) ||
-					(IsSetRegOnlyMsg(target_p) && !source_p->user->suser[0])))
+		if(!IsServer(source_p) && IsSetCallerId(target_p))
 		{
 			/* Here is the anti-flood bot/spambot code -db */
 			if(accept_message(source_p, target_p) || IsOper(source_p))
@@ -830,13 +828,6 @@ msg_client(enum message_type msgtype,
 					   source_p->username,
 					   source_p->host, cmdname[msgtype], target_p->name, text);
 			}
-			else if (IsSetRegOnlyMsg(target_p) && !source_p->user->suser[0])
-			{
-				if (msgtype != MESSAGE_TYPE_NOTICE)
-					sendto_one_numeric(source_p, ERR_NONONREG,
-							form_str(ERR_NONONREG),
-							target_p->name);
-			}
 			else
 			{
 				/* check for accept, flag recipient incoming message */

modules/m_invite.c

@@ -161,6 +161,10 @@ m_invite(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source
 			else
 				sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
 						 me.name, source_p->name, parv[2]);
+
+			if (MyClient(target_p))
+				add_reply_target(target_p, source_p);
+
 			return;
 		}
 	}
@@ -200,18 +204,7 @@ m_invite(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source
 
 	if(MyConnect(target_p))
 	{
-		if(!IsOper(source_p) && (IsSetCallerId(target_p) ||
-					(IsSetRegOnlyMsg(target_p) && !source_p->user->suser[0])) &&
-				!accept_message(source_p, target_p))
-		{
-			if (IsSetRegOnlyMsg(target_p) && !source_p->user->suser[0])
-			{
-				sendto_one_numeric(source_p, ERR_NONONREG,
-						form_str(ERR_NONONREG),
-						target_p->name);
-				return;
-			}
-			else
+		if(!IsOper(source_p) && IsSetCallerId(target_p) && !accept_message(source_p, target_p))
 		{
 			sendto_one_numeric(source_p, ERR_TARGUMODEG,
 					   form_str(ERR_TARGUMODEG),
@@ -234,7 +227,6 @@ m_invite(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source
 
 			return;
 		}
-		}
 
 		hdata.chptr = chptr;
 		hdata.msptr = msptr;

modules/um_regonlymsg.c

@@ -0,0 +1,147 @@
+/*
+ * modules/um_regonlymsg.c
+ * Copyright (c) 2020 Ariadne Conill <ariadne@dereferenced.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "stdinc.h"
+#include "modules.h"
+#include "hook.h"
+#include "client.h"
+#include "ircd.h"
+#include "send.h"
+#include "hash.h"
+#include "s_conf.h"
+#include "s_user.h"
+#include "s_serv.h"
+#include "numeric.h"
+#include "privilege.h"
+#include "s_newconf.h"
+#include "logger.h"
+
+static int
+um_regonlymsg_modinit(void)
+{
+	user_modes['R'] = find_umode_slot();
+	construct_umodebuf();
+
+	if (!user_modes['R'])
+	{
+		ierror("um_regonlymsg: unable to allocate usermode slot for +R, unloading module");
+		return -1;
+	}
+
+	return 0;
+}
+
+static void
+um_regonlymsg_moddeinit(void)
+{
+	user_modes['R'] = 0;
+	construct_umodebuf();
+}
+
+#define IsSetRegOnlyMsg(c)	((c->umodes & user_modes['R']) == user_modes['R'])
+
+static const char um_regonlymsg_desc[] =
+	"Provides usermode +R which restricts messages from unregistered users.";
+
+static bool
+allow_message(struct Client *source_p, struct Client *target_p)
+{
+	if (!MyClient(target_p))
+		return true;
+
+	if (!IsSetRegOnlyMsg(target_p))
+		return true;
+
+	if (IsServer(source_p))
+		return true;
+
+	/* XXX: controversial?  allow opers to send through +R */
+	if (IsOper(source_p))
+		return true;
+
+	if (accept_message(source_p, target_p))
+		return true;
+
+	if (source_p->user->suser[0])
+		return true;
+
+	return false;
+}
+
+static void
+h_hdl_invite(void *vdata)
+{
+	hook_data_channel_approval *data = vdata;
+	struct Client *source_p = data->client;
+	struct Client *target_p = data->target;
+	static char errorbuf[BUFSIZE];
+
+	if (data->approved)
+		return;
+
+	if (allow_message(source_p, target_p))
+		return;
+
+	snprintf(errorbuf, sizeof errorbuf, form_str(ERR_NONONREG),
+		 target_p->name);
+
+	data->approved = ERR_NONONREG;
+	data->error = errorbuf;
+}
+
+static void
+h_hdl_privmsg_user(void *vdata)
+{
+	hook_data_privmsg_user *data = vdata;
+	struct Client *source_p = data->source_p;
+	struct Client *target_p = data->target_p;
+
+	if (data->approved)
+		return;
+
+	if (allow_message(source_p, target_p))
+		return;
+
+	if (data->msgtype == MESSAGE_TYPE_NOTICE)
+		return;
+
+	sendto_one_numeric(source_p, ERR_NONONREG, form_str(ERR_NONONREG),
+			   target_p->name);
+
+	data->approved = ERR_NONONREG;
+}
+
+static mapi_hfn_list_av1 um_regonlymsg_hfnlist[] = {
+	{ "invite", h_hdl_invite },
+	{ "privmsg_user", h_hdl_privmsg_user },
+	{ NULL, NULL }
+};
+
+DECLARE_MODULE_AV2(um_regonlymsg, um_regonlymsg_modinit, um_regonlymsg_moddeinit,
+		   NULL, NULL, um_regonlymsg_hfnlist, NULL, NULL, um_regonlymsg_desc);