New module third/restrict-chans (PR #88 from ValwareIRC/patch-25)

Module to restrict the creation of channels to logged-in users and opers

Author: syzop

files/restrict-chans.c

@@ -0,0 +1,66 @@
+/** 
+ * LICENSE: GPLv3 or later
+ * Copyright Ⓒ 2023 Valerie Pond
+ * 
+ * Restricts channels to registered users
+ * Requested by Chris[A]
+ * 
+*/
+/*** <<<MODULE MANAGER START>>>
+module
+{
+		documentation "https://github.com/ValwareIRC/valware-unrealircd-mods/blob/main/restrict-chans/README.md";
+		troubleshooting "In case of problems, documentation or e-mail me at v.a.pond@outlook.com";
+		min-unrealircd-version "6.*";
+		max-unrealircd-version "6.*";
+		post-install-text {
+				"The module is installed. Now all you need to do is add a loadmodule line:";
+				"loadmodule \"third/restrict-chans\";";
+				"And /REHASH the IRCd.";
+				"The module does not need any other configuration.";
+		}
+}
+*** <<<MODULE MANAGER END>>>
+*/
+#include "unrealircd.h"
+int isreg_can_join(Client *client, Channel *channel, const char *key, char **errmsg);
+
+ModuleHeader MOD_HEADER =
+{
+	"third/restrict-chans",
+	"1.0",
+	"Restrict channel creation to logged-in users",
+	"Valware",
+	"unrealircd-6",
+};
+MOD_INIT()
+{
+	MARK_AS_GLOBAL_MODULE(modinfo);
+	
+	HookAdd(modinfo->handle, HOOKTYPE_CAN_JOIN, 0, isreg_can_join);
+	return MOD_SUCCESS;
+}
+
+MOD_LOAD()
+{
+	return MOD_SUCCESS;
+}
+MOD_UNLOAD()
+{
+	return MOD_SUCCESS; 
+}
+
+MOD_TEST()
+{
+	return MOD_SUCCESS;
+}
+
+int isreg_can_join(Client *client, Channel *channel, const char *key, char **errmsg)
+{
+	if (!channel->users && !IsLoggedIn(client) && !has_channel_mode(channel, 'P'))
+	{
+		*errmsg = "%s :You must be logged in to create new channels", channel->name;
+		return ERR_CANNOTDOCOMMAND;
+	}
+	return 0;
+}