applications/luci-app-https-dns-proxy/root/usr/libexec/rpcd/luci.https-dns-proxy

   1 #!/bin/sh
   2 # Copyright 2023 MOSSDeF, Stan Grishin (stangri@melmac.ca)
   3 # shellcheck disable=SC1091,SC2039,SC3043
   4
   5 # TechRef: https://openwrt.org/docs/techref/rpcd
   6
   7 # ubus -v list luci.https-dns-proxy
   8 # ubus -S call luci.https-dns-proxy getInitList '{"name": "https-dns-proxy" }'
   9 # ubus -S call luci.https-dns-proxy getInitStatus '{"name": "https-dns-proxy" }'
  10 # ubus -S call luci.https-dns-proxy getPlatformSupport '{"name": "https-dns-proxy" }'
  11 # ubus -S call luci.https-dns-proxy getProviders '{"name": "https-dns-proxy" }'
  12 # ubus -S call luci.https-dns-proxy getRuntime '{"name": "https-dns-proxy" }'
  13
  14 readonly packageName="https-dns-proxy"
  15 readonly providersDir="/usr/share/${packageName}/providers"
  16
  17 . /lib/functions.sh
  18 . /usr/share/libubox/jshn.sh
  19
  20 is_enabled() { "/etc/init.d/${1}" enabled; }
  21 is_running() { [ "$(ubus call service list "{ 'name': '$1' }" | jsonfilter -q -e "@['$1'].instances[*].running" | uniq)" = 'true' ]; }
  22 get_version() { grep -m1 -A2 -w "^Package: $1$" /usr/lib/opkg/status | sed -n 's/Version: //p'; }
  23 check_http2() { grep -q 'Provides: libnghttp2' /usr/lib/opkg/status; }
  24 check_http3() { grep -q 'Provides: libnghttp3' /usr/lib/opkg/status; }
  25 ubus_get_ports() { ubus call service list "{ 'name': '$packageName' }" | jsonfilter -e "@['${packageName}'].instances[*].data.firewall.*.dest_port"; }
  26 logger() { /usr/bin/logger -t "$packageName" "$@"; }
  27 print_json_bool() { json_init; json_add_boolean "$1" "$2"; json_dump; json_cleanup; }
  28
  29 get_init_list() {
  30         local name="$1"
  31         json_init
  32         json_add_object "$name"
  33         if is_enabled "$name"; then
  34                 json_add_boolean 'enabled' '1'
  35         else
  36                 json_add_boolean 'enabled' '0'
  37         fi
  38         if is_running "$name"; then
  39                 json_add_boolean 'running' '1'
  40         else
  41                 json_add_boolean 'running' '0'
  42         fi
  43         json_close_object
  44         json_dump
  45         json_cleanup
  46 }
  47
  48 get_init_status() {
  49         local name
  50         local i ports
  51         local version
  52         name="$(basename "$1")"
  53         name="${name:-$packageName}"
  54         ports="$(ubus_get_ports)"
  55         [ -z "$version" ] && version="$(get_version "$name")"
  56         json_init
  57         json_add_object  "$name"
  58         if is_enabled "$name"; then
  59                 json_add_boolean 'enabled' '1'
  60         else
  61                 json_add_boolean 'enabled' '0'
  62         fi
  63         if is_running "$name"; then
  64                 json_add_boolean 'running' '1'
  65         else
  66                 json_add_boolean 'running' '0'
  67         fi
  68         if [ -n "$ports" ]; then
  69                 json_add_boolean 'force_dns_active' '1'
  70                 json_add_array 'force_dns_ports'
  71                         for i in $ports; do json_add_int '' "$i"; done
  72                 json_close_array
  73         else
  74                 json_add_boolean 'force_dns_active' '0'
  75         fi
  76         json_add_string 'version' "$version"
  77         json_close_array
  78         json_close_object
  79         json_dump
  80         json_cleanup
  81 }
  82
  83 get_platform_support() {
  84         local name
  85         name="$(basename "$1")"
  86         name="${name:-$packageName}"
  87         json_init
  88         json_add_object "$name"
  89         if check_http2; then
  90                 json_add_boolean 'http2_support' '1'
  91         else
  92                 json_add_boolean 'http2_support' '0'
  93         fi
  94         if check_http3; then
  95                 json_add_boolean 'http3_support' '1'
  96         else
  97                 json_add_boolean 'http3_support' '0'
  98         fi
  99         json_close_object
 100         json_dump
 101         json_cleanup
 102 }
 103
 104 get_providers() {
 105         local f
 106         echo '{"https-dns-proxy":['
 107         for f in "$providersDir"/*; do
 108                 cat "$f"
 109                 echo ','
 110         done
 111 #       echo '{ "title": "Custom", "template": "{option}", "params": { "option": { "type": "text", }, }, },'
 112         echo ']}'
 113 }
 114
 115 get_runtime() { ubus call service list "{ 'verbose': true, 'name': '$1' }"; }
 116
 117 set_init_action() {
 118         local name="$1" action="$2" cmd
 119         case $action in
 120                 enable)
 121                         cmd="/etc/init.d/${name} enable";;
 122                 disable)
 123                         cmd="/etc/init.d/${name} disable";;
 124                 start|stop|restart)
 125                         cmd="/etc/init.d/${name} ${action}";;
 126         esac
 127         if [ -n "$cmd" ] && eval "${cmd}" >/dev/null 2>&1; then
 128                 print_json_bool "result" '1'
 129         else
 130                 print_json_bool "result" '0'
 131         fi
 132 }
 133
 134 case "$1" in
 135         list)
 136                 json_init
 137                 json_add_object "getInitList"
 138                         json_add_string 'name' "name"
 139                 json_close_object
 140                 json_add_object "getInitStatus"
 141                         json_add_string 'name' 'name'
 142                 json_close_object
 143                 json_add_object "getPlatformSupport"
 144                         json_add_string 'name' 'name'
 145                 json_close_object
 146                 json_add_object "getProviders"
 147                         json_add_string 'name' "name"
 148                 json_close_object
 149                 json_add_object "getRuntime"
 150                         json_add_string 'name' "name"
 151                 json_close_object
 152                 json_add_object "setInitAction"
 153                         json_add_string 'name' "name"
 154                         json_add_string 'action' "action"
 155                 json_close_object
 156                 json_dump
 157                 json_cleanup
 158                 ;;
 159         call)
 160                 case "$2" in
 161                         getInitList)
 162                                 read -r input
 163                                 json_load "$input"
 164                                 json_get_var name "name"
 165                                 json_cleanup
 166                                 get_init_list "$name"
 167                                 ;;
 168                         getInitStatus)
 169                                 read -r input
 170                                 json_load "$input"
 171                                 json_get_var name 'name'
 172                                 json_cleanup
 173                                 get_init_status "$name"
 174                                 ;;
 175                         getPlatformSupport)
 176                                 read -r input
 177                                 json_load "$input"
 178                                 json_get_var name 'name'
 179                                 json_cleanup
 180                                 get_platform_support "$name"
 181                                 ;;
 182                         getProviders)
 183                                 read -r input
 184                                 json_load "$input"
 185                                 json_get_var name "name"
 186                                 json_cleanup
 187                                 get_providers "$name"
 188                                 ;;
 189                         getRuntime)
 190                                 read -r input
 191                                 json_load "$input"
 192                                 json_get_var name "name"
 193                                 json_cleanup
 194                                 get_runtime "$name"
 195                                 ;;
 196                         setInitAction)
 197                                 read -r input
 198                                 json_load "$input"
 199                                 json_get_var name "name"
 200                                 json_get_var action "action"
 201                                 json_cleanup
 202                                 set_init_action "$name" "$action"
 203                                 ;;
 204                 esac
 205         ;;
 206 esac