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