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#!/bin/sh
g_pslfile=/usr/share/public_suffix_list.dat.gz
[ -f "$g_pslfile" ] || g_pslfile="$(dirname $0)/public_suffix_list.dat.gz"
g_pslerr=0
g_cfgfile="ddns"
# modify timer settings from interval and unit to dhms format
timer2dhms() {
# $1 Number and
# $2 Unit of time interval
local t=0
case $2 in
days) t=$(( $1 * 86400 ));;
hours) t=$(( $1 * 3600 ));;
minutes) t=$(( $1 * 60 ));;
*) t=$1;;
esac
local d=$(( $t / 86400 ))
local h=$(( $t % 86400 / 3600 ))
local m=$(( $t % 3600 / 60 ))
local s=$(( $t % 60 ))
if [ $d -gt 0 ]; then printf "%dd %02dh %02dm %02ds" "$d" "$h" "$m" "$s"
elif [ $h -gt 0 ]; then printf "%dh %02dm %02ds" "$h" "$m" "$s"
elif [ $m -gt 0 ]; then printf "%dm %02ds" "$m" "$s"
else printf "%ds" "$s"; fi
unset d h m s t
return 0
}
# using function to not confuse function calls with existing ones inside /lib/functions.sh
update_config() {
uc_uci="$(which uci) -q" # ignore errors
uc_cfg=""
uc_name=""
uc_var=""
uc_val=""
package() { return 0; }
config () {
uc_cfg="$1"
uc_name="$2"
# Type = ddns Name = global
if [ "$uc_cfg" = "$g_cfgfile" -a "$uc_name" = "global" ]; then
option() {
uc_var="$1"; shift
uc_val="$*"
case "$uc_var" in
allow_local_ip) $uc_uci rename $g_cfgfile.$uc_name.$uc_var="upd_privateip";;
date_format) $uc_uci rename $g_cfgfile.$uc_name.$uc_var="ddns_dateformat";;
log_lines) $uc_uci rename $g_cfgfile.$uc_name.$uc_var="ddns_loglines";;
log_dir) $uc_uci rename $g_cfgfile.$uc_name.$uc_var="ddns_logdir";;
run_dir) $uc_uci rename $g_cfgfile.$uc_name.$uc_var="ddns_rundir";;
# leave all other options currently unchanged
*) ;;
esac
}
# Type = service Name = ???
elif [ "$uc_cfg" = "service" ]; then
option() {
uc_var="$1"; shift
uc_val="$*"
case "$uc_var" in
# fix some option service_name values
# and some settings for specific providers
service_name|upd_provider)
case "$uc_val" in
freedns\.afraid\.org|afraid\.org)
$uc_uci set $g_cfgfile.$uc_name.$uc_var="afraid.org-keyauth";;
Bind-nsupdate)
$uc_uci set $g_cfgfile.$uc_name.$uc_var="bind-nsupdate";;
dyndns\.org|dyndns\.com)
$uc_uci set $g_cfgfile.$uc_name.$uc_var="dyn.com";;
free\.editdns\.net)
$uc_uci set $g_cfgfile.$uc_name.$uc_var="editdns.net";;
FreeDNS\.42\.pl)
$uc_uci set $g_cfgfile.$uc_name.$uc_var="freedns.42.pl";;
domains\.google\.com)
$uc_uci set $g_cfgfile.$uc_name.$uc_var="google.com";;
loopia\.com)
$uc_uci set $g_cfgfile.$uc_name.$uc_var="loopia.se";;
NoIP\.com|No-IP\.com)
$uc_uci set $g_cfgfile.$uc_name.$uc_var="no-ip.com";;
spdns\.de)
$uc_uci set $g_cfgfile.$uc_name.$uc_var="spdyn.de";;
strato\.de)
$uc_uci set $g_cfgfile.$uc_name.$uc_var="strato.com";;
*)
# all others leave unchanged
;;
esac
# rename option service_name to option upd_provider
# $uc_uci rename $g_cfgfile.$uc_name.$uc_var="upd_provider"
;;
domain|upd_object)
# verify if lookup_host is set
$uc_uci get $g_cfgfile.$uc_name.lookup_host >/dev/null 2>&1 || \
$uc_uci set $g_cfgfile.$uc_name.lookup_host="$uc_val"
if [ -f "$g_pslfile" ]; then
# if service_name/upd_provider cloudflare_v1 then change domain/upd_object to new syntax
# there is no sort order inside uci data so we need multiple checks
uco_provider=$($uc_uci get $g_cfgfile.$uc_name.upd_provider 2>/dev/null) || \
uco_provider=$($uc_uci get $g_cfgfile.$uc_name.service_name 2>/dev/null)
unset uco_provider
fi
# rename option domain to option upd_object
# $uc_uci rename $g_cfgfile.$uc_name.$uc_var="upd_object"
;;
# dns_server)
# # if bind-nsupdate takeover old "dns_server" value as new "upd_nsupd_server" value
# uco_provider=$($uc_uci get $g_cfgfile.$uc_name.upd_provider 2>/dev/null) || \
# uco_provider=$($uc_uci get $g_cfgfile.$uc_name.service_name 2>/dev/null)
# [ "$uco_provider" = "Bind-nsupdate" -o \
# "$uco_provider" = "bind-nsupdate" ] && \
# $uc_uci set $g_cfgfile.$uc_name.upd_nsupd_server="$uc_val"
# # rename option dns_server to new option global_dnssvr
# $udc_uci rename $g_cfgfile.$uc_name.$uc_var="global_dnssvr"
# ;;
# bind_network)
# $udc_uci set $g_cfgfile.$uc_name.upd_url_bindnet="$uc_val"
# $udc_uci rename $g_cfgfile.$uc_name.$uc_var="lip_url_bindnet"
# ;;
# proxy)
# # proxy value must include protocoll
# $udc_uci set $g_cfgfile.$uc_name.$uc_var="http://$uc_val"
# $udc_uci rename $g_cfgfile.$uc_name.$uc_var="upd_url_proxy"
# ;;
# use_ipv6)
# $udc_uci set $g_cfgfile.$uc_name.$uc_var="$(( 4 + ( 2 * $uc_val ) ))"
# $udc_uci rename $g_cfgfile.$uc_name.$uc_var="upd_ipversion"
# TODO update_url)
# TODO update_script)
# other renames
# TODO lookup_host) -> rip_host
# enabled) $udc_uci rename $g_cfgfile.$uc_name.$uc_var="upd_enabled";;
# force_dnstcp) $udc_uci rename $g_cfgfile.$uc_name.$uc_var="rip_host_dnstcp";;
# is_glue) $udc_uci rename $g_cfgfile.$uc_name.$uc_var="rip_host_isglue";;
# ip_interface) $udc_uci rename $g_cfgfile.$uc_name.$uc_var="lip_iface";;
# ip_network) $udc_uci rename $g_cfgfile.$uc_name.$uc_var="lip_net";;
# use_https) $udc_uci rename $g_cfgfile.$uc_name.$uc_var="upd_url_secure";;
# cacert) $udc_uci rename $g_cfgfile.$uc_name.$uc_var="upd_url_cacert";;
# username) $udc_uci rename $g_cfgfile.$uc_name.$uc_var="upd_username";;
# password) $udc_uci rename $g_cfgfile.$uc_name.$uc_var="upd_password";;
# param_opt) $udc_uci rename $g_cfgfile.$uc_name.$uc_var="upd_paramopt";;
# param_enc) $udc_uci rename $g_cfgfile.$uc_name.$uc_var="upd_paramenc";;
# leave all other options currently unchanged
*) ;;
esac
return 0
}
return 0
# ignore unknown
else
return 0
fi
}
# read config file
uc_data=$($uc_uci -S -n export "$g_cfgfile")
uc_ret="$?"
# Error then create config file
[ $uc_ret -ne 0 ] && {
touch /etc/config/$uc_cfgfile
chmod 644 /etc/config/$uc_cfgfile
}
# No error and uc_data then execute (eval)
# this will call functions defined above
[ $uc_ret -eq 0 -a -n "$uc_data" ] && eval "$uc_data"
# add config ddns "global" (ignore error if exists)
$uc_uci set ddns.global="$g_cfgfile"
# write changes to config file
$uc_uci commit "$g_cfgfile"
unset uc_uci uc_cfg uc_name uc_var uc_val uc_ret uc_data
return 0
}
# clear LuCI indexcache
rm -f /tmp/luci-indexcache >/dev/null 2>&1
# do config update
update_config
#cleanup
[ $g_pslerr -ne 0 ] && {
unset g_pslfile g_pslerr g_cfgfile
return 1
}
[ -f "$g_pslfile" ] && rm -f "$g_pslfile"
unset g_pslfile g_pslerr g_cfgfile
return 0
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