modules: Add SAJOIN command for an oper to force join target lists.

Author: jevolk

modules/Makefile.am

@@ -53,6 +53,7 @@ auto_load_mod_LTLIBRARIES = \
   m_rehash.la \
   m_restart.la \
   m_resv.la \
+  m_sajoin.la \
   m_sasl.la \
   m_scan.la \
   m_services.la \

modules/m_sajoin.c

@@ -0,0 +1,149 @@
+/*
+ *  charybdis: porto vintage '88.
+ *  m_sajoin.c: Force join a user to a channel.
+ *
+ * Copyright (c) 2016 Charybdis Development Team
+ * Copyright (c) 2016 Jason Volk <[email protected]>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for 
+any
+ * purpose with or without fee is hereby granted, provided that the 
+above
+ * copyright notice and this permission notice is present in all copies.
+ *
+ * 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 "client.h"
+#include "ircd.h"
+#include "msg.h"
+#include "numeric.h"
+#include "send.h"
+#include "s_conf.h"
+#include "logger.h"
+#include "parse.h"
+#include "modules.h"
+#include "hash.h"
+#include "cache.h"
+#include "rb_dictionary.h"
+
+const char sajoin_desc[] =
+"Allows operators to force a user to join a channel.";
+
+static void mo_sajoin(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
+
+struct Message sajoin_msgtab =
+{
+	"SAJOIN", 0, 0, 0, 0,
+	{
+		mg_unreg,
+		mg_ignore,
+		mg_ignore,
+		mg_ignore,
+		mg_ignore,
+		{ mo_sajoin, 3 }
+	}
+};
+
+mapi_clist_av1 sajoin_clist[] =
+{
+	&sajoin_msgtab,
+	NULL
+};
+
+DECLARE_MODULE_AV2
+(
+	sajoin,
+	NULL,
+	NULL,
+	sajoin_clist,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	sajoin_desc
+);
+
+/* Soft join is where SAJOIN peruses as the user itself attempting
+ * to join the channel and is susceptible to bans etc.
+ *
+ * parv[1] = user to join to channel
+ * parv[2] = name of channel
+ */
+static void
+join_soft(struct Client *const client,
+          const char *const chname)
+{
+	static char buf[BUFSIZE];
+	const size_t len = snprintf(buf, sizeof(buf), ":%s JOIN %s",
+	                            use_id(client),
+	                            chname);
+
+	parse(client, buf, buf + len);
+}
+
+/* Hard join forces the target user into the channel manually,
+ * with as few checks as possible to bypass any bans etc.
+ *
+ * parv[1] = user to join to channel
+ * parv[2] = name of channel
+ *
+ *  !! NOT YET IMPLEMENTED !!
+ */
+static void
+join_hard(struct Client *const client,
+          const char *const chname)
+{
+}
+
+/*
+ * parv[1] = channel list (chan,chan,chan,...)
+ * parv[2] = nick list (nick,nick,nick,...)
+ * (future) parv[3] = options
+ */
+static void
+mo_sajoin(struct MsgBuf *const msgbuf,
+          struct Client *const client_p,
+          struct Client *const source_p,
+          int parc,
+          const char **const parv)
+{
+	static const char *const SEP = ",";
+	static char vec[BUFSIZE];
+	char *ctx, *target;
+
+	int clients = 0;
+	static struct Client *client[BUFSIZE];
+	rb_strlcpy(vec, parv[2], sizeof(vec));
+	target = rb_strtok_r(vec, SEP, &ctx); do
+	{
+		if(!(client[clients] = find_person(target)))
+			continue;
+
+		clients++;		
+	}
+	while((target = rb_strtok_r(NULL, SEP, &ctx)));
+
+	rb_strlcpy(vec, parv[1], sizeof(vec));
+	target = rb_strtok_r(vec, SEP, &ctx); do
+	{
+		if(!check_channel_name(target))
+			continue;
+
+		for(size_t i = 0; i < clients; i++)
+			join_soft(client[i], target);
+	}
+	while((target = rb_strtok_r(NULL, SEP, &ctx)));
+}