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update_sample.sh 1.8 KB

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  1. # sample script for sending user defined updates
  2. # 2014-2015 Christian Schoenebeck <christian dot schoenebeck at gmail dot com>
  3. #
  4. # activated inside /etc/config/ddns by setting
  5. #
  6. # option update_script '/usr/lib/ddns/update_sample.sh'
  7. #
  8. # the script is parsed (not executed) inside send_update() function
  9. # of /usr/lib/ddns/dynamic_dns_functions.sh
  10. # so you can use all available functions and global variables inside this script
  11. # already defined in dynamic_dns_updater.sh and dynamic_dns_functions.sh
  12. #
  13. # It make sence to define the update url ONLY inside this script
  14. # because it's anyway unique to the update script
  15. # otherwise it should work with the default scripts
  16. #
  17. # the code here is the copy of the default used inside send_update()
  18. #
  19. # tested with spdns.de
  20. local __URL="http://[USERNAME]:[PASSWORD]@update.spdns.de/nic/update?hostname=[DOMAIN]&myip=[IP]"
  21. # inside url we need domain, username and password
  22. [ -z "$domain" ] && write_log 14 "Service section not configured correctly! Missing 'domain'"
  23. [ -z "$username" ] && write_log 14 "Service section not configured correctly! Missing 'username'"
  24. [ -z "$password" ] && write_log 14 "Service section not configured correctly! Missing 'password'"
  25. # do replaces in URL
  26. __URL=$(echo $__URL | | sed -e "s#\[USERNAME\]#$URL_USER#g" -e "s#\[PASSWORD\]#$URL_PASS#g" \
  27. -e "s#\[PARAMENC\]#$URL_PENC#g" -e "s#\[PARAMOPT\]#$param_opt#g" \
  28. -e "s#\[DOMAIN\]#$domain#g" -e "s#\[IP\]#$__IP#g")
  29. [ $use_https -ne 0 ] && __URL=$(echo $__URL | sed -e 's#^http:#https:#')
  30. do_transfer "$__URL" || return 1
  31. write_log 7 "DDNS Provider answered:\n$(cat $DATFILE)"
  32. # analyse provider answers
  33. # "good [IP_ADR]" = successful
  34. # "nochg [IP_ADR]" = no change but OK
  35. grep -i -E "good|nochg" $DATFILE >/dev/null 2>&1
  36. return $? # "0" if "good" or "nochg" found