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#!/bin/sh /etc/rc.common
# Basic init script for mosquitto
# April 2012, OpenWrt.org
# Provides support for the luci-app-mosquitto package, if installed
START=80
USE_PROCD=1
TCONF=/tmp/mosquitto.generated.conf
# Usage: append_if cfg uci_name output_name
# add a config line of the form "output_name <value>"
# if the "uci_name" was found.
# output_name defaults to uci_name if not specified.
append_if() {
local cfg="$1"
local uci_name="$2"
local out_name="$3"
if [ -z "$out_name" ]; then
out_name=$uci_name
fi
config_get val $cfg $uci_name
if [ -n "$val" ]; then
echo "$out_name $val" >> $TCONF
fi
}
# mosquitto uses true/false, uci uses 1/0
# note that this is not shell truthy, but equality with 1!
append_bool() {
if [ $2 -eq 1 ]; then
echo "$1 true" >> $TCONF
else
echo "$1 false" >> $TCONF
fi
}
# as per append_if, but gets the value as a uci bool, not raw
append_optional_bool() {
local cfg="$1"
local uci_name="$2"
local out_name="$3"
config_get val $cfg $uci_name
if [ -n "$val" ]; then
config_get_bool real $cfg $uci_name
append_bool $out_name $real
fi
}
convert_mosq_general() {
local cfg="$1"
config_get destinations "$1" log_dest
for dest in $destinations; do
echo "log_dest $dest" >> $TCONF
done
config_get_bool no_remote "$1" no_remote_access 0
if [ "$no_remote" -eq 1 ]; then
echo "bind_address 127.0.0.1" >> $TCONF
fi
config_get port "$1" port 1883
echo "port $port" >> $TCONF
append_if "$1" protocol
append_if "$1" max_inflight_messages
append_if "$1" max_queued_messages
}
convert_persistence() {
local cfg="$1"
append_if "$cfg" client_expiration persistent_client_expiration
append_if "$cfg" autosave_interval
append_optional_bool "$cfg" autosave_on_changes autosave_on_changes
append_optional_bool "$cfg" persistence persistence
append_if "$cfg" file persistence_file
config_get loc "$cfg" location
if [ -n "$loc" ]; then
[ -d "$loc" ] || {
mkdir -p "$loc";
chown mosquitto "$loc";
}
echo "persistence_location $loc" >> $TCONF
fi
}
add_listener() {
echo "" >> $TCONF
config_get port "$1" port
if [ -z "$port" ]; then
echo "Ignoring listener section without port"
return
fi
config_get_bool no_remote "$1" no_remote_access 0
if [ "$no_remote" -eq 1 ]; then
echo "listener $port 127.0.0.1" >> $TCONF
else
echo "listener $port" >> $TCONF
fi
append_if "$1" protocol
}
add_topic() {
echo "topic $1" >> $TCONF
}
add_bridge() {
config_get conn "$1" connection
config_get addr "$1" address
if [ -z "$conn" -o -z "$addr" ]; then
echo "Ignoring bridge section, misisng connection/address"
return
fi
echo "" >> $TCONF
echo "# Bridge connection from UCI section" >> $TCONF
append_if "$1" connection
append_if "$1" address
config_list_foreach "$1" topic add_topic
append_optional_bool "$1" cleansession cleansession
append_optional_bool "$1" try_private try_private
append_if "$1" clientid
append_if "$1" identity bridge_identity
append_if "$1" psk bridge_psk
append_if "$1" tls_version bridge_tls_version
}
convert_uci() {
rm -rf $TCONF
echo "Generating mosquitto config file in $TCONF"
echo "# mosquitto.conf file generated from UCI config." >>$TCONF
# Don't include a timestamp, it makes md5sum compares fail
config_load mosquitto
config_foreach convert_mosq_general "mosquitto"
config_foreach convert_persistence "persistence"
config_foreach add_listener "listener"
config_foreach add_bridge "bridge"
}
start_service_real() {
local cfg="$1"
local use_uci write_pid
config_get use_uci "$cfg" use_uci
if [ "$use_uci" -eq 1 ]; then
CONF=$TCONF
convert_uci
else
CONF=/etc/mosquitto/mosquitto.conf
fi
config_get write_pid "$cfg" write_pid 0
procd_open_instance
procd_set_param command mosquitto
procd_append_param command -c $CONF
# Makes /etc/init.d/mosquitto reload work if you edit the final file.
procd_set_param file $CONF
[ "$write_pid" -eq 1 ] && procd_set_param pidfile /var/run/mosquitto.pid
procd_close_instance
}
start_service() {
config_load mosquitto
config_foreach start_service_real owrt
}
service_triggers() {
# Makes "reload_config" work
procd_add_reload_trigger "mosquitto"
}