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## Author: Mike Rushton## IMPORTANT## Please set jail.local's permission to 640 because it contains your CF API key.## This action depends on curl (and optionally jq).# Referenced from http://www.normyee.net/blog/2012/02/02/adding-cloudflare-support-to-fail2ban by NORM YEE## To get your CloudFlare API Key: https://www.cloudflare.com/a/account/my-account## CloudFlare API error codes: https://www.cloudflare.com/docs/host-api.html#s4.2[Definition]# Option: actionstart# Notes.: command executed on demand at the first ban (or at the start of Fail2Ban if actionstart_on_demand is set to false).# Values: CMD#actionstart =# Option: actionstop# Notes.: command executed at the stop of jail (or at the end of Fail2Ban)# Values: CMD#actionstop =# Option: actioncheck# Notes.: command executed once before each actionban command# Values: CMD#actioncheck =# Option: actionban# Notes.: command executed when banning an IP. Take care that the# command is executed with Fail2Ban user rights.# Tags: <ip> IP address# <failures> number of failures# <time> unix timestamp of the ban time# Values: CMD## API v1#actionban = curl -s -o /dev/null https://www.cloudflare.com/api_json.html -d 'a=ban' -d 'tkn=<cftoken>' -d 'email=<cfuser>' -d 'key=<ip>'# API v4actionban = curl -s -o /dev/null -X POST <_cf_api_prms> \-d '{"mode":"block","configuration":{"target":"ip","value":"<ip>"},"notes":"Fail2Ban <name>"}' \<_cf_api_url># Option: actionunban# Notes.: command executed when unbanning an IP. Take care that the# command is executed with Fail2Ban user rights.# Tags: <ip> IP address# <failures> number of failures# <time> unix timestamp of the ban time# Values: CMD## API v1#actionunban = curl -s -o /dev/null https://www.cloudflare.com/api_json.html -d 'a=nul' -d 'tkn=<cftoken>' -d 'email=<cfuser>' -d 'key=<ip>'# API v4actionunban = id=$(curl -s -X GET <_cf_api_prms> \"<_cf_api_url>?mode=block&configuration_target=ip&configuration_value=<ip>&page=1&per_page=1¬es=Fail2Ban%%20<name>" \| { jq -r '.result[0].id' 2>/dev/null || tr -d '\n' | sed -nE 's/^.*"result"\s*:\s*\[\s*\{\s*"id"\s*:\s*"([^"]+)".*$/\1/p'; })if [ -z "$id" ]; then echo "<name>: id for <ip> cannot be found"; exit 0; fi;curl -s -o /dev/null -X DELETE <_cf_api_prms> "<_cf_api_url>/$id"_cf_api_url = https://api.cloudflare.com/client/v4/user/firewall/access_rules/rules_cf_api_prms = -H 'X-Auth-Email: <cfuser>' -H 'X-Auth-Key: <cftoken>' -H 'Content-Type: application/json'[Init]# If you like to use this action with mailing whois lines, you could use the composite action# action_cf_mwl predefined in jail.conf, just define in your jail:## action = %(action_cf_mwl)s# # Your CF account e-mail# cfemail =# # Your CF API Key# cfapikey =cftoken =cfuser =