dnspod_line.sh

#Dnspod DDNS with BashShell
#Github:https://github.com/kkkgo/dnspod-ddns-with-bashshell
#More: https://03k.org/dnspod-ddns-with-bashshell.html
#CONF START
API_ID=12345
API_Token=abcdefghijklmnopq2333333
domain=example.com
host=home
#OUT="pppoe"
DEV="eth0"
#CONF END
. /etc/profile
date
IPREX='([0-9]{1,2}|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.([0-9]{1,2}|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.([0-9]{1,2}|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.([0-9]{1,2}|1[0-9][0-9]|2[0-4][0-9]|25[0-5])'
ipcmd="ip addr show"
type ip >/dev/null 2>&1 || ipcmd="ifconfig"
DEVIP=$($ipcmd $DEV | grep -Eo "$IPREX" | head -n1)
if (echo $DEVIP | grep -qEvo "$IPREX"); then
    DEVIP="Get $DOMAIN DEVIP Failed."
fi
echo "[DEV IP]:$DEVIP"
dnscmd="nslookup"
type nslookup >/dev/null 2>&1 || dnscmd="ping -c1"
DNSTEST=$($dnscmd $host.$domain)
if [ "$?" != 0 ] && [ "$dnscmd" == "nslookup" ] || (echo $DNSTEST | grep -qEvo "$IPREX"); then
    DNSIP="Get $host.$domain DNS Failed."
else
    DNSIP=$(echo $DNSTEST | grep -Eo "$IPREX" | tail -n1)
fi
echo "[DNS IP]:$DNSIP"
if [ "$DNSIP" = "$DEVIP" ]; then
    echo "IP SAME IN DNS,SKIP UPDATE."
    exit
fi
token="login_token=${API_ID},${API_Token}&format=json&lang=en&error_on_empty=yes&domain=${domain}&sub_domain=${host}"
Record="$(curl -4 -k $(if [ -n "$OUT" ]; then echo "--interface $OUT"; fi) -s -X POST https://dnsapi.cn/Record.List -d "${token}")"
iferr="$(echo ${Record#*code} | cut -d'"' -f3)"
if [ "$iferr" = "1" ]; then
    record_ip=$(echo ${Record#*value} | cut -d'"' -f3)
    echo "[API IP]:$record_ip"
    if [ "$record_ip" == "$DEVIP" ]; then
        echo "IP SAME IN API,SKIP UPDATE."
        exit
    fi
    record_id=$(echo ${Record#*\"records\"\:\[\{\"id\"} | cut -d'"' -f2)
    record_line_id=$(echo ${Record#*line_id} | cut -d'"' -f3)
    echo Start DDNS update...
    ddns="$(curl -4 -k $(if [ -n "$OUT" ]; then echo "--interface $OUT"; fi) -s -X POST https://dnsapi.cn/Record.Ddns -d "${token}&record_id=${record_id}&record_line_id=${record_line_id}&value=$DEVIP")"
    ddns_result="$(echo ${ddns#*message\"} | cut -d'"' -f2)"
    echo -n "DDNS upadte result:$ddns_result "
    echo $ddns | grep -Eo "$IPREX" | tail -n1
else
    echo -n Get $host.$domain error :
    echo $(echo ${Record#*message\"}) | cut -d'"' -f2
fi