iopsys-feed/ddnsmngr/files/usr/lib/inadyn/ddnsmngr_service.sh
2024-02-23 14:18:47 +05:30

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#!/bin/sh
PROG="/usr/sbin/inadyn"
CONFIGPATH="/tmp/inadyn_config"
PIDPATH="/etc/inadyn_pid"
CLIENT_INTFS=""
CONFIG_FILES=""
SERVER_PATH="/etc/ddnsmngr/servers"
FORMAT="custom [SECTION] {\n\tusername\t= [USER]\n\tpassword\t= [PWD]\n\tddns-server\t= [SERV]\n\tddns-path\t= [URI]\n\tssl\t\t= [SSL]\n\thostname\t= [NAME]\n\tcheckip-command\t= [CMD]\n\tddns-response\t= [RESPONSES]\n}"
. /usr/share/libubox/jshn.sh
log() {
echo "$*"|logger -t ddnsmngr.init -p debug
}
get_service_data() {
local provider="$1"
shift
local dir="$1"
shift
local ipv6="$1"
shift
local name data url answer script
[ $# -ne 2 ] && {
return 1
}
[ -f "${dir}/${provider}.json" ] || {
eval "$1=\"\""
eval "$2=\"\""
return 1
}
json_load_file "${dir}/${provider}.json"
json_get_var name "name"
if [ "$ipv6" -eq "1" ]; then
json_select "ipv6"
else
json_select "ipv4"
fi
json_get_var data "url"
json_get_var answer "answer"
json_select ".."
json_cleanup
response=""
if [ -n "${answer}" ]; then
answer=$(echo "${answer}" | sed 's/|/ /g')
for ans in $answer; do
if [ -z "${response}" ]; then
response="${ans}"
else
response="${response}, ${ans}"
fi
done
response="{ ${response} }"
fi
eval "$1=\"$data\""
eval "$2=\"$response\""
return 0
}
generate_inadyn_config() {
json_load "${1}"
json_get_var service_name service_name
json_get_var use_ipv6 use_ipv6
json_get_var interface interface
json_get_var username username
json_get_var password password
json_get_var host lookup_host
json_get_var conf_file config_file
json_get_var conf_dir config_dir
json_get_var server_address server_address
json_cleanup
if [ -z "${service_name}" ] || [ -z "${host}" ]; then
return 1
fi
if [ -z "${conf_file}" ]; then
return 1
fi
if [ -z "${conf_dir}" ]; then
return 1
fi
# First look into custom path to load the url otherwise default path
get_service_data "${service_name}" "${SERVER_PATH}" "${use_ipv6}" server_url server_answer
if [ -z "${server_url}" ]; then
return 1
fi
# Need to pick proto, server address and request uri separately from the url
# format http://[server_address]/[update_Request_uri]
proto=$(echo $server_url | cut -d':' -f 1)
serv=$(echo $server_url | cut -d'/' -f 3 | cut -d'@' -f 2)
uri=${server_url#*$serv}
if [ -z $proto ] || [ -z $serv ] || [ -z $uri ]; then
return 1
fi
path=$(echo "$uri" | sed 's/&/\\&/g')
update_uri=$(echo $path | sed -e "s#\[DOMAIN\]#%h#g" -e "s#\[PASSWORD\]#%p#g" \
-e "s#\[USERNAME\]#%u#g" -e "s#\[IP\]#%i#g")
if [ -z "${interface}" ]; then
if [ "${use_ipv6}" -eq 0 ]; then
interface="wan"
else
interface="wan6"
fi
fi
# now get the physical interface name
intf=$(ifstatus "${interface}" | jsonfilter -e '@.device')
if [ -z "${intf}" ]; then
return 1
fi
# command to get ip of the interface
if [ "${use_ipv6}" -eq 0 ]; then
get_ip="\"ifstatus ${interface} | jsonfilter -e '@[\\\\\"ipv4-address\\\\\"][0].address'\""
else
get_ip="\"ifstatus ${interface} | jsonfilter -e '@[\\\\\"ipv6-address\\\\\"][0].address'\""
fi
if [ "${proto}" = "http" ]; then
ssl="false"
else
ssl="true"
fi
inadyn_ver=$(inadyn -v)
user_agent="inadyn/${inadyn_ver}"
config_file="${conf_dir}/${conf_file}"
touch "${config_file}"
echo "iface = ${intf}" > "${config_file}"
echo "period = 600" >> "${config_file}"
echo "user-agent = ${user_agent}" >> "${config_file}"
if [ "${use_ipv6}" -eq 1 ]; then
echo "allow-ipv6 = true" >> "${config_file}"
fi
if [ -z "${password}" ]; then
FORMAT=$(echo "${FORMAT}" | sed 's/\\tpassword\\t= \[PWD\]\\n//g')
fi
if [ -z "${server_answer}" ]; then
FORMAT=$(echo "${FORMAT}" | sed 's/\\tddns-response\\t= \[RESPONSES\]\\n//g')
fi
config=$(echo $FORMAT | sed -e "s#\[SECTION\]#$conf_file#g" -e "s#\[PWD\]#$password#g" \
-e "s#\[USER\]#$username#g" -e "s#\[SERV\]#$serv#g" \
-e "s#\[URI\]#\"$update_uri\"#g" -e "s#\[SSL\]#$ssl#g" \
-e "s#\[NAME\]#$host#g" -e "s#\[CMD\]#$get_ip#g" \
-e "s#\[RESPONSES\]#$server_answer#g")
echo -e "\n\n${config}" >> "${config_file}"
return 0
}
validate_host_section() {
uci_validate_section ddnsmngr host "${1}" \
'enabled:bool:0' \
'lookup_host:string' \
'dm_parent:string'
}
validate_client_section() {
uci_validate_section ddnsmngr client "${1}" \
'enabled:bool:0' \
'service_name:string' \
'interface:string' \
'ip_network:string' \
'username:string' \
'password:string' \
'use_https:bool:0' \
'force_dnstcp:bool:0' \
'use_ipv6:bool:0' \
'force_ipversion:bool:0'
}
add_object() {
local enabled lookup_host dm_parent use_ipv6 force_ipversion
local service_name interface ip_network username password use_https force_dnstcp
validate_host_section "${1}" || {
log "Validation of host section failed"
return
}
if [ "${enabled}" -ne 1 ] || [ -z "${dm_parent}" ]; then
return
fi
validate_client_section "${dm_parent}" || {
log "Validation of client section failed"
return
}
if [ "${enabled}" -ne 1 ]; then
return
fi
service_name=$(uci -q get ddnsmngr.${dm_parent}.service_name)
if [ -z "${service_name}" ]; then
return
fi
service_section=$(uci show ddnsmngr | grep "service=\'${service_name}\'" | cut -d'.' -f 2 | head -1)
if [ -z "${service_section}" ]; then
return
fi
service_enabled=$(uci -q get ddnsmngr.${service_section}.enabled)
if [ "${service_enabled}" -ne 1 ]; then
return
fi
json_init
json_add_string "interface" "${interface}"
json_add_string "service_name" "${service_name}"
json_add_string "username" "${username}"
json_add_string "password" "${password}"
json_add_string "lookup_host" "${lookup_host}"
json_add_string "ip_network" "${ip_network}"
json_add_string "use_ipv6" "${use_ipv6}"
json_add_string "force_ipversion" "${force_ipversion}"
json_add_string "use_https" "${use_https}"
json_add_string "force_dnstcp" "${force_dnstcp}"
json_add_string "config_file" "${1}"
json_add_string "config_dir" "${CONFIGPATH}"
json_str=$(json_dump)
json_cleanup
generate_inadyn_config "${json_str}"
if [ "$?" -ne 0 ]; then
return
fi
CONFIG_FILES="${CONFIG_FILES} ${1}"
if [ -z "${interface}" ]; then
if [ "${use_ipv6}" -eq 0 ]; then
interface="wan"
else
interface="wan6"
fi
fi
for intf in $CLIENT_INTFS; do
if [ "${intf}" == "${interface}" ]; then
return
fi
done
CLIENT_INTFS="${CLIENT_INTFS} ${interface}"
}
start_ddnsmngr_service() {
rm -rf $CONFIGPATH
mkdir $CONFIGPATH
mkdir -p $PIDPATH
config_load ddnsmngr
config_foreach add_object host
i=1
for conf in $CONFIG_FILES; do
instance="ddnsmngr_${i}"
i=$(( i + 1 ))
procd_open_instance $instance
procd_set_param command "$PROG"
procd_append_param command -f "${CONFIGPATH}/${conf}"
procd_append_param command -l debug
procd_append_param command -P "${PIDPATH}/${conf}"
procd_append_param command -n -C
procd_close_instance
done
}
stop_ddnsmngr_service() {
rm -rf $CONFIGPATH
return 0
}
add_ddnsmngr_triggers() {
procd_open_trigger
for intf in $CLIENT_INTFS; do
# No need to handle other ifevents like ifupdate etc
procd_add_interface_trigger "interface.*.up" $intf /etc/init.d/ddnsmngr restart
done
procd_close_trigger
}