nut: nut-cgi: Add support for upsset

This allows config for setting variables and/or running
commands from the CGI.

Signed-off-by: Daniel F. Dickinson <cshored@thecshore.com>

net/nut/Makefile

@@ -329,12 +329,15 @@ define Package/nut-web-cgi/install
 	$(INSTALL_CONF) ./files/add_nut_httpd_conf $(1)/etc/uci-defaults/add_nut_httpd_conf
 	$(INSTALL_CONF) $(PKG_INSTALL_DIR)/etc/nut/upsstats.html.sample $(1)/etc/nut/upsstats.html
 	$(INSTALL_CONF) $(PKG_INSTALL_DIR)/etc/nut/upsstats-single.html.sample $(1)/etc/nut/upsstats-single.html
-	$(INSTALL_CONF) $(PKG_INSTALL_DIR)/etc/nut/upsset.conf.sample $(1)/etc/nut/upsset.conf
+	$(INSTALL_CONF) $(PKG_INSTALL_DIR)/etc/nut/upsset.conf.sample $(1)/etc/nut/upsset.conf.disable
+	$(INSTALL_CONF) $(PKG_INSTALL_DIR)/etc/nut/upsset.conf.sample $(1)/etc/nut/upsset.conf.enable
+	$(SED) 's/### \?//' $(1)/etc/nut/upsset.conf.enable
 	$(INSTALL_DIR) $(1)/etc/config
 	$(INSTALL_CONF) ./files/nut_cgi $(1)/etc/config/nut_cgi
 	$(INSTALL_DIR) $(1)/etc/init.d
 	$(INSTALL_BIN) ./files/nut-cgi.init $(1)/etc/init.d/nut-cgi
 	ln -sf /var/etc/nut/hosts.conf $(1)/etc/nut/hosts.conf
+	ln -sf /var/etc/nut/upsset.conf $(1)/etc/nut/upsset.conf
 endef
 
 define Package/nut-avahi-service

net/nut/files/nut-cgi.init

@@ -8,6 +8,20 @@ START=51
 
 DEFAULT=/etc/default/nut
 UPSCGI_C=/var/etc/nut/hosts.conf
+UPSCGI_S=/var/etc/nut/upsset.conf
+
+nut_upscgi_upsset() {
+	local cfg="$1"
+	local enable
+
+	config_get_bool enable "$cfg" enable 0
+
+	[ $enable -eq 1 ] && {
+		ln -sf /etc/nut/upsset.conf.enable "$UPSCGI_S"
+	} || {
+		ln -sf /etc/nut/upsset.conf.disable "$UPSCGI_S"
+	}
+}
 
 nut_upscgi_add() {
 	local cfg="$1"
@@ -30,15 +44,20 @@ nut_upscgi_add() {
 
 start() {
 	rm -f $UPSCGI_C
+	rm -f "$UPSCGI_S"
+	mkdir -m 0755 -p "$(dirname "$UPSCGI_C")"
 
 	config_load nut_cgi
 
 	config_foreach nut_upscgi_add host
+	config_foreach nut_upscgi_upsset upsset
 
 	chmod 640 /var/etc/nut/hosts.conf
 }
 
 stop() {
 	rm -f $UPSCGI_C
+	rm -f "$UPSCGI_S"
+	ln -sf /etc/nut/upsset.conf.disable "$UPSCGI_S"
 }
 

net/nut/files/nut_cgi

@@ -4,3 +4,5 @@
 #	option port # optional port number
 #	option displayname "Display Name"
 
+config upsset
+	option enable 0