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#
# Author: Logic-32
#
# IMPORTANT
#
# Please set jail.local's permission to 640 because it contains your CF API token.
#
# This action depends on curl.
#
# To get your Cloudflare API token: https://developers.cloudflare.com/api/tokens/create/
#
# Cloudflare Firewall API: https://developers.cloudflare.com/firewall/api/cf-firewall-rules/endpoints/
[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
actionban = curl -s -X POST "<_cf_api_url>" \
<_cf_api_prms> \
--data '{"mode":"<cfmode>","configuration":{"target":"<cftarget>","value":"<ip>"},"notes":"<notes>"}'
# 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
#
actionunban = id=$(curl -s -X GET "<_cf_api_url>?mode=<cfmode>¬es=<notes>&configuration.target=<cftarget>&configuration.value=<ip>" \
<_cf_api_prms> \
| awk -F"[,:}]" '{for(i=1;i<=NF;i++){if($i~/'id'\042/){print $(i+1)}}}' \
| tr -d ' "' \
| head -n 1)
if [ -z "$id" ]; then echo "<name>: id for <ip> cannot be found using target <cftarget>"; exit 0; fi; \
curl -s -X DELETE "<_cf_api_url>/$id" \
<_cf_api_prms> \
--data '{"cascade": "none"}'
_cf_api_url = https://api.cloudflare.com/client/v4/zones/<cfzone>/firewall/access_rules/rules
_cf_api_prms = -H "Authorization: Bearer <cftoken>" -H "Content-Type: application/json"
[Init]
# Declare your Cloudflare Authorization Bearer Token in the [DEFAULT] section of your jail.local file.
# The Cloudflare <ZONE_ID> of hte domain you want to manage.
#
# cfzone =
# Your personal Cloudflare token. Ideally restricted to just have "Zone.Firewall Services" permissions.
#
# cftoken =
# Target of the firewall rule. Default is "ip" (v4).
#
cftarget = ip
# The firewall mode Cloudflare should use. Default is "block" (deny access).
# Consider also "js_challenge" or other "allowed_modes" if you want.
#
cfmode = block
# The message to include in the firewall IP banning rule.
#
notes = Fail2Ban <name>
[Init?family=inet6]
cftarget = ip6
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