From c2c25552ca4a17b53fad9c27ccc7ce639916d174 Mon Sep 17 00:00:00 2001
From: Jilles Tjoelker <jilles@stack.nl>
Date: Sat, 19 Sep 2009 21:24:35 +0200
Subject: [PATCH] Force part local users (not resv_exempt) on channel resv. A
 notice will be sent to any force parted users that the channel is
 temporarily/permanently unavailable on the server. A new config option
 channel::resv_forcepart can be used to disable this.

from ircd-ratbox (dubkat)
---
 doc/example.conf   |  1 +
 doc/reference.conf |  5 +++++
 include/s_conf.h   |  1 +
 modules/m_info.c   |  6 ++++++
 modules/m_resv.c   | 53 ++++++++++++++++++++++++++++++++++++++++++++++
 src/newconf.c      |  1 +
 src/s_conf.c       |  1 +
 7 files changed, 68 insertions(+)

diff --git a/doc/example.conf b/doc/example.conf
index 042364f3..cb584516 100755
--- a/doc/example.conf
+++ b/doc/example.conf
@@ -318,6 +318,7 @@ channel {
 	burst_topicwho = yes;
 	kick_on_split_riding = no;
 	only_ascii_channels = no;
+	resv_forcepart = yes;
 };
 
 serverhide {
diff --git a/doc/reference.conf b/doc/reference.conf
index f23050aa..326520ff 100755
--- a/doc/reference.conf
+++ b/doc/reference.conf
@@ -739,6 +739,11 @@ channel {
 	 * or non-ASCII).
 	 */
 	only_ascii_channels = no;
+ 
+	/* resv_forcepart: force any local users to part a channel
+	 * when a RESV is issued.
+	 */
+	resv_forcepart = yes;
 };
 
 
diff --git a/include/s_conf.h b/include/s_conf.h
index 6a10c56a..750bfbd3 100644
--- a/include/s_conf.h
+++ b/include/s_conf.h
@@ -238,6 +238,7 @@ struct config_channel_entry
 	int burst_topicwho;
 	int kick_on_split_riding;
 	int only_ascii_channels;
+	int resv_forcepart;
 };
 
 struct config_server_hide
diff --git a/modules/m_info.c b/modules/m_info.c
index 3be948d3..d3ddb3b8 100644
--- a/modules/m_info.c
+++ b/modules/m_info.c
@@ -572,6 +572,12 @@ static struct InfoStruct info_table[] = {
 		&ConfigChannel.use_knock,
 		"Enable /KNOCK",
 	},
+	{
+		"resv_forcepart",
+		OUTPUT_BOOLEAN_YN,
+		{ &ConfigChannel.resv_forcepart },
+		"Force-part local users on channel RESV"
+	},
 	{
 		"disable_hidden",
 		OUTPUT_BOOLEAN_YN,
diff --git a/modules/m_resv.c b/modules/m_resv.c
index 3cbf4a86..faf4066a 100644
--- a/modules/m_resv.c
+++ b/modules/m_resv.c
@@ -67,6 +67,7 @@ static void cluster_resv(struct Client *source_p, int temp_time,
 static void handle_remote_unresv(struct Client *source_p, const char *name);
 static void remove_resv(struct Client *source_p, const char *name);
 static int remove_resv_from_file(struct Client *source_p, const char *name);
+static void resv_chan_forcepart(const char *name, const char *reason, int temp_time);
 
 /*
  * mo_resv()
@@ -231,6 +232,7 @@ parse_resv(struct Client *source_p, const char *name,
 		aconf->name = rb_strdup(name);
 		aconf->passwd = rb_strdup(reason);
 		add_to_resv_hash(aconf->name, aconf);
+		resv_chan_forcepart(aconf->name, aconf->passwd, temp_time);
 
 		if(temp_time > 0)
 		{
@@ -638,3 +640,54 @@ remove_resv_from_file(struct Client *source_p, const char *name)
 
 	return 1;
 }
+
+static void 
+resv_chan_forcepart(const char *name, const char *reason, int temp_time)
+{
+	rb_dlink_node *ptr;
+	rb_dlink_node *next_ptr;
+	struct Channel *chptr;
+	struct membership *msptr;
+	struct Client *target_p;
+
+	if(!ConfigChannel.resv_forcepart)
+		return;
+
+	/* for each user on our server in the channel list
+	 * send them a PART, and notify opers.
+	 */
+	chptr = find_channel(name);
+	if(chptr != NULL)
+	{
+		RB_DLINK_FOREACH_SAFE(ptr, next_ptr, chptr->locmembers.head)
+		{
+			msptr = ptr->data;
+			target_p = msptr->client_p;
+
+			if(IsExemptResv(target_p))
+				continue;
+
+			sendto_server(target_p, chptr, CAP_TS6, NOCAPS,
+			              ":%s PART %s", target_p->id, chptr->chname);
+
+			sendto_channel_local(ALL_MEMBERS, chptr, ":%s!%s@%s PART %s :%s",
+			                     target_p->name, target_p->username,
+			                     target_p->host, chptr->chname, target_p->name);
+
+			remove_user_from_channel(msptr);
+
+			/* notify opers & user they were removed from the channel */
+			sendto_realops_snomask(SNO_GENERAL, L_ALL,
+			                     "Forced PART for %s!%s@%s from %s (%s)",
+			                     target_p->name, target_p->username, 
+			                     target_p->host, name, reason);
+
+			if(temp_time > 0)
+				sendto_one_notice(target_p, ":*** Channel %s is temporarily unavailable on this server.",
+				           name);
+			else
+				sendto_one_notice(target_p, ":*** Channel %s is no longer available on this server.",
+				           name);
+		}
+	}
+}
diff --git a/src/newconf.c b/src/newconf.c
index 36d05175..2d0b63dd 100644
--- a/src/newconf.c
+++ b/src/newconf.c
@@ -2190,6 +2190,7 @@ static struct ConfEntry conf_channel_table[] =
 	{ "use_invex",		CF_YESNO, NULL, 0, &ConfigChannel.use_invex		},
 	{ "use_knock",		CF_YESNO, NULL, 0, &ConfigChannel.use_knock		},
 	{ "use_forward",	CF_YESNO, NULL, 0, &ConfigChannel.use_forward		},
+	{ "resv_forcepart",     CF_YESNO, NULL, 0, &ConfigChannel.resv_forcepart	},
 	{ "\0", 		0, 	  NULL, 0, NULL }
 };
 
diff --git a/src/s_conf.c b/src/s_conf.c
index 94e8669d..7acb5734 100644
--- a/src/s_conf.c
+++ b/src/s_conf.c
@@ -814,6 +814,7 @@ set_default_conf(void)
 	ConfigChannel.default_split_server_count = 10;
 	ConfigChannel.no_join_on_split = NO;
 	ConfigChannel.no_create_on_split = YES;
+	ConfigChannel.resv_forcepart = YES;
 
 	ConfigServerHide.flatten_links = 0;
 	ConfigServerHide.links_delay = 300;