net/mosquitto/files/mosquitto.uci.convert

   1 #!/bin/sh
   2 # Converts a uci config file into an appropriate mosquitto.conf snippet
   3 # expected to be used in an init file to generate a config file to run from
   4 # Karl Palsson <karlp@remake.is> 2012.
   5 # Considered to be released into the public domain
   6
   7 [ -f $IPKG_INSTROOT/lib/functions.sh ] && . $IPKG_INSTROOT/lib/functions.sh
   8
   9 TCONF=/tmp/mosquitto.generated.$$.conf
  10 while getopts "f:" o; do
  11     case $o in
  12     f)
  13         TCONF=$OPTARG
  14         ;;
  15     esac
  16 done
  17
  18 if [ -e $TCONF ]; then
  19     echo "Odd, same temporary generated config file already existed: $TCONF"
  20     exit 1
  21 fi
  22
  23 echo "Generating mosquitto config file in $TCONF"
  24 NOW=$(date)
  25 echo "# mosquitto.conf file generated from UCI config." >>$TCONF
  26 echo "# Config snippet generated by $0 on $NOW" >>$TCONF
  27 echo "#" >> $TCONF
  28
  29 # Usage: append_if cfg uci_name output_name
  30 # add a config line of the form "output_name <value>"
  31 # if the "uci_name" was found.
  32 # output_name defaults to uci_name if not specified.
  33 append_if() {
  34     local cfg="$1"
  35     local uci_name="$2"
  36     local out_name="$3"
  37     if [ -z "$out_name" ]; then
  38         out_name=$uci_name
  39     fi
  40     config_get val $cfg $uci_name
  41     if [ -n "$val" ]; then
  42         echo "$out_name $val" >> $TCONF
  43     fi
  44 }
  45
  46 # mosquitto uses true/false, uci uses 1/0
  47 # note that this is not shell truthy, but equality with 1!
  48 append_bool() {
  49     if [ $2 -eq 1 ]; then
  50         echo "$1 true" >> $TCONF
  51     else
  52         echo "$1 false" >> $TCONF
  53     fi
  54 }
  55
  56 # as per append_if, but gets the value as a uci bool, not raw
  57 append_optional_bool() {
  58     local cfg="$1"
  59     local uci_name="$2"
  60     local out_name="$3"
  61     config_get val $cfg $uci_name
  62     if [ -n "$val" ]; then
  63         config_get_bool real $cfg $uci_name
  64         append_bool $out_name $real
  65     fi
  66 }
  67
  68 mosq_general() {
  69     config_get destinations "$1" log_dest
  70     for dest in $destinations; do
  71         echo "log_dest $dest" >> $TCONF
  72     done
  73
  74     config_get_bool no_remote "$1" no_remote_access 0
  75     if [ "$no_remote" -eq 1 ]; then
  76         echo "bind_address 127.0.0.1" >> $TCONF
  77     fi
  78
  79     config_get port "$1" port 1883
  80     echo "port $port" >> $TCONF
  81     append_if "$1" protocol
  82     append_if "$1" max_inflight_messages
  83     append_if "$1" max_queued_messages
  84
  85 }
  86
  87 add_listener() {
  88     echo "" >> $TCONF
  89     config_get port "$1" port
  90     if [ -z "$port" ]; then
  91         echo "Ignoring listener section without port"
  92         return
  93     fi
  94     config_get_bool no_remote "$1" no_remote_access 0
  95     if [ "$no_remote" -eq 1 ]; then
  96         echo "listener $port 127.0.0.1" >> $TCONF
  97     else
  98         echo "listener $port" >> $TCONF
  99     fi
 100
 101     append_if "$1" protocol
 102 }
 103
 104 add_topic() {
 105     echo "topic $1" >> $TCONF
 106 }
 107
 108 add_bridge() {
 109     config_get conn "$1" connection
 110     config_get addr "$1" address
 111     if [ -z "$conn" -o -z "$addr" ]; then
 112         echo "Ignoring bridge section, misisng connection/address"
 113         return
 114     fi
 115     echo "" >> $TCONF
 116     echo "# Bridge connection from UCI section" >> $TCONF
 117     append_if "$1" connection
 118     append_if "$1" address
 119
 120     config_list_foreach "$1" topic add_topic
 121     append_optional_bool "$1" cleansession cleansession
 122     append_optional_bool "$1" try_private try_private
 123
 124     append_if "$1" clientid
 125     append_if "$1" identity bridge_identity
 126     append_if "$1" psk bridge_psk
 127     append_if "$1" tls_version bridge_tls_version
 128 }
 129
 130
 131 config_load "mosquitto"
 132 config_foreach mosq_general "mosquitto"
 133 config_foreach add_listener "listener"
 134 config_foreach add_bridge "bridge"