ripe-atlas: add get_key and probeid to init script

Previous package (atlas-sw-probe) printed the public key to register a
new probe with "/etc/init.d/atlas get_key" and the probe ID with
"/etc/init.d/atlas probeid", and the documentation [1] [2] tells users
to run get_key. Add both back as "/etc/init.d/ripe-atlas get_key" and
"/etc/init.d/ripe-atlas probeid". For a probe that has registered since
boot, get_key prints the probe ID instead of asking to register it.

[1] https://docs.turris.cz/basics/apps/atlas/
[2] https://github.com/openwrt/packages/blob/d2aeaf041bc0/net/atlas-sw-probe/files/atlas.readme

Fixes: b77264c922 ("ripe-atlas: add new package")
Signed-off-by: Josef Schlehofer <pepe.schlehofer@gmail.com>

net/ripe-atlas/Makefile

@@ -7,7 +7,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ripe-atlas
 PKG_VERSION:=5130
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_SOURCE:=ripe-atlas-software-probe-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://codeload.github.com/RIPE-NCC/ripe-atlas-software-probe/tar.gz/refs/tags/$(PKG_VERSION)?

net/ripe-atlas/files/ripe-atlas.init

@@ -6,6 +6,9 @@ MAINU=ripe-atlas
 MEASU=ripe-atlas
 GROUP=ripe-atlas
 
+extra_command "get_key" "Print the public key to register the probe with"
+extra_command "probeid" "Print the probe ID"
+
 validate_config()
 {
 	uci_load_validate 'ripe-atlas' 'ripe-atlas' "${1}" "${2}" \
@@ -244,6 +247,42 @@ reload_service()
 	start
 }
 
+registered_id()
+{
+	awk '$1 == "PROBE_ID" { print $2 }' \
+		/var/run/ripe-atlas/status/reg_init_reply.txt 2> /dev/null
+}
+
+get_key()
+{
+	local pub=/etc/ripe-atlas/probe_key.pub
+	local id
+
+	if [ ! -s "${pub}" ]; then
+		echo "${pub} is missing, start the probe to create it" >&2
+		return 1
+	fi
+	id="$(registered_id)"
+	if [ -n "${id}" ]; then
+		echo "Registered as probe ${id} with:"
+	else
+		echo 'Register the probe at https://atlas.ripe.net/apply/swprobe/ with:'
+	fi
+	cat "${pub}"
+}
+
+probeid()
+{
+	local id
+
+	id="$(registered_id)"
+	if [ -z "${id}" ]; then
+		echo 'The probe has not registered since boot' >&2
+		return 1
+	fi
+	echo "Probe ID is ${id}"
+}
+
 service_triggers()
 {
 	procd_add_reload_trigger 'ripe-atlas'