net/ddns-scripts/files/usr/lib/ddns/update_no-ip.sh

   1 #
   2 # script for sending updates to no-ip.com / noip.com
   3 # 2014 Christian Schoenebeck <christian dot schoenebeck at gmail dot com>
   4 #
   5 # This script is parsed by dynamic_dns_functions.sh inside send_update() function
   6 #
   7 # provider did not reactivate records, if no IP change was recognized
   8 # so we send a dummy (localhost) and a seconds later we send the correct IP addr
   9 #
  10 local __ANSWER __LH
  11 local __UPDURL="http://[USERNAME]:[PASSWORD]@dynupdate.no-ip.com/nic/update?hostname=[DOMAIN]&myip=[IP]"
  12
  13 # set IP version dependend dummy (localhost)
  14 [ $use_ipv6 -eq 0 ] && __LH="127.0.0.1" || __LH="::1"
  15
  16 # lets do DUMMY transfer
  17 write_log 7 "sending dummy IP to 'no-ip.com'"
  18 __URL=$(echo $__UPDURL | sed -e "s#\[USERNAME\]#$URL_USER#g" -e "s#\[PASSWORD\]#$URL_PASS#g" \
  19                                -e "s#\[DOMAIN\]#$domain#g" -e "s#\[IP\]#$__LH#g")
  20 [ $use_https -ne 0 ] && __URL=$(echo $__URL | sed -e 's#^http:#https:#')
  21
  22 do_transfer __ANSWER "$__URL" || return 1
  23
  24 write_log 7 "'no-ip.com' answered:\n$__ANSWER"
  25 # analyse provider answers
  26 # "good [IP_ADR]"       = successful
  27 # "nochg [IP_ADR]"      = no change but OK
  28 echo "$__ANSWER" | grep -E "good|nochg" >/dev/null 2>&1 || return 1
  29
  30 # lets wait a seconds
  31 sleep 1
  32
  33 # now send the correct data
  34 write_log 7 "sending real IP to 'no-ip.com'"
  35 __URL=$(echo $__UPDURL | sed -e "s#\[USERNAME\]#$URL_USER#g" -e "s#\[PASSWORD\]#$URL_PASS#g" \
  36                                -e "s#\[DOMAIN\]#$domain#g" -e "s#\[IP\]#$__IP#g")
  37 [ $use_https -ne 0 ] && __URL=$(echo $__URL | sed -e 's#^http:#https:#')
  38
  39 do_transfer __ANSWER "$__URL" || return 1
  40
  41 write_log 7 "'no-ip.com' answered:\n$__ANSWER"
  42 # analyse provider answers
  43 # "good [IP_ADR]"       = successful
  44 # "nochg [IP_ADR]"      = no change but OK
  45 echo "$__ANSWER" | grep -E "good|nochg" >/dev/null 2>&1
  46 return $?       # "0" if "good" or "nochg" found
  47