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Update cloudflare-template.sh

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It allows mutiable domains to be updated on CLI easily. Makes some basic checks that account info is supplied. Also gives an detail debug output "-debug".
cloudflare-template.sh mydomain.com example.com www.example.com x1.example.com
cloudflare-template.sh
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timetoexpire 4 years ago committed by GitHub
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      cloudflare-template.sh

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cloudflare-template.sh
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@ -1,4 +1,4 @@
#!/bin/bash
##!/bin/bash
## change to "bin/sh" when necessary
auth_email="" # The email used to login 'https://dash.cloudflare.com'
@ -12,87 +12,271 @@ slacksitename="" # Title of site "Example Site
slackchannel="" # Slack Channel #example
slackuri="" # URI for Slack WebHook "https://hooks.slack.com/services/xxxxx"
#tolerant_is_set=0
top_exit_code=-1;
#argument_total=$#
#tolerant_is_set=false;
debug_output_echo () {
if [ ! -z $debug_mode_active ]; then
if [ $debug_mode_active -eq 1 ]; then
echo -e $debug_output
fi
fi
}
exit_code () {
if [ $top_exit_code -lt $excode ]; then
top_exit_code=$excode
fi
###########################################
## Check if we have a public IP
###########################################
ip=$(curl -s https://api.ipify.org || curl -s https://ipv4.icanhazip.com/)
if [ $tolerant_is_set -eq 1 ]; then
# Only when tolerent mode is active, it will not stop for error
logger_output="DDNS Updater: in tolerant mode - exit [$excode]"
debug_output+=$logger_output"\n"
logger $logger_output
else
#It strict mode it will stap instantly on error
debug_output_echo
exit $exit_code
fi
}
if [ "${ip}" == "" ]; then
logger -s "DDNS Updater: No public IP found"
cf_ddns_ip () {
###########################################
## Check if we have a public IP
###########################################
ip=$(curl -s https://api.ipify.org || curl -s https://ipv4.icanhazip.com/)
if [ "${ip}" == "" ]; then
logger_output="DDNS Updater: No public IP found"
debug_output+=$logger_output"\n"
logger -s $logger_output
# excode=1; exit_code
#no point going on if can not get ip
exit 1
fi
fi
}
###########################################
## Check and set the proper auth header
###########################################
if [ "${auth_method}" == "global" ]; then
cf_ddns_authheader () {
###########################################
## Check and set the proper auth header
###########################################
if [ "${auth_method}" == "global" ]; then
auth_header="X-Auth-Key:"
else
else
auth_header="Authorization: Bearer"
fi
fi
debug_output+="cf_ddns_authheader : "$auth_header"\n"
}
###########################################
## Seek for the A record
###########################################
cf_ddns_seeka () {
###########################################
## Seek for the A record
###########################################
logger "DDNS Updater: Check Initiated"
record=$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones/$zone_identifier/dns_records?type=A&name=$record_name" \
logger_output="DDNS Updater: Check Initiated"
debug_output+=$logger_output"\n"
logger "$logger_output"
record=$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones/$zone_identifier/dns_records?type=A&name=$record_name" \
-H "X-Auth-Email: $auth_email" \
-H "$auth_header $auth_key" \
-H "Content-Type: application/json")
debug_output+="cf_ddns_seeka : "$record"\n"
}
###########################################
## Check if the domain has an A record
###########################################
if [[ $record == *"\"count\":0"* ]]; then
logger -s "DDNS Updater: Record does not exist, perhaps create one first? (${ip} for ${record_name})"
exit 1
fi
cf_ddns_checka () {
###########################################
## Check if the domain has an A record
###########################################
cf_nonexistsrecord=1
if [[ $record == *"\"count\":0"* ]]; then
logger_output="DDNS Updater: Record does not exist, perhaps create one first? (${ip} for ${record_name})"
debug_output+=$logger_output"\n"
logger -s $logger_output
cf_nonexistsrecord=0
excode=1; exit_code
fi
}
###########################################
## Get existing IP
###########################################
old_ip=$(echo "$record" | sed -E 's/.*"content":"(([0-9]{1,3}\.){3}[0-9]{1,3})".*/\1/')
# Compare if they're the same
if [[ $ip == $old_ip ]]; then
logger "DDNS Updater: IP ($ip) for ${record_name} has not changed."
exit 0
fi
cf_ddns_currentip () {
###########################################
## Get existing IP
###########################################
old_ip=$(echo "$record" | sed -E 's/.*"content":"(([0-9]{1,3}\.){3}[0-9]{1,3})".*/\1/')
# Compare if they're the same
if [[ $ip == $old_ip ]]; then
logger_output="DDNS Updater: IP ($ip) for ${record_name} has not changed."
debug_output+=$logger_output"\n"
logger -s $logger_output
logger logger_output
excode=0; exit_code
fi
}
###########################################
## Set the record identifier from result
###########################################
record_identifier=$(echo "$record" | sed -E 's/.*"id":"(\w+)".*/\1/')
cf_ddns_set_identifier () {
###########################################
## Set the record identifier from result
###########################################
record_identifier=$(echo "$record" | sed -E 's/.*"id":"(\w+)".*/\1/')
debug_output+="cf_ddns_set_identifier : "$record_identifier"\n"
}
###########################################
## Change the IP@Cloudflare using the API
###########################################
update=$(curl -s -X PATCH "https://api.cloudflare.com/client/v4/zones/$zone_identifier/dns_records/$record_identifier" \
cf_ddns_update () {
###########################################
## Change the IP@Cloudflare using the API
###########################################
update=$(curl -s -X PATCH "https://api.cloudflare.com/client/v4/zones/$zone_identifier/dns_records/$record_identifier" \
-H "X-Auth-Email: $auth_email" \
-H "$auth_header $auth_key" \
-H "Content-Type: application/json" \
--data "{\"type\":\"A\",\"name\":\"$record_name\",\"content\":\"$ip\",\"ttl\":\"$ttl\",\"proxied\":${proxy}}")
debug_output+="cf_ddns_update : "$update"\n"
}
###########################################
## Report the status
###########################################
case "$update" in
*"\"success\":false"*)
logger -s "DDNS Updater: $ip $record_name DDNS failed for $record_identifier ($ip). DUMPING RESULTS:\n$update"
cf_ddns_status () {
###########################################
## Report the status
###########################################
case "$update" in
*"\"success\":false"*)
logger_output="DDNS Updater: $ip $record_name DDNS failed for $record_identifier ($ip). DUMPING RESULTS:\n$update"
debug_output+=$logger_output"\n"
logger -s $logger_output
curl -L -X POST $slackuri \
--data-raw '{
"channel": "'$slackchannel'",
"text" : "'"$slacksitename"' DDNS Update Failed: '$record_name': '$record_identifier' ('$ip')."
}'
exit 1;;
*)
logger "DDNS Updater: $ip $record_name DDNS updated."
excode=1; exit_code;;
*)
logger_output="DDNS Updater: $ip $record_name DDNS updated."
debug_output+=$logger_output"\n"
logger $logger_output
curl -L -X POST $slackuri \
--data-raw '{
"channel": "'$slackchannel'",
"text" : "'"$slacksitename"' Updated: '$record_name''"'"'s'""' new IP Address is '$ip'"
}'
exit 0;;
esac
excode=0; exit_code;;
esac
}
cf_ddns() {
if [ ${#ip} -eq 0 ]; then
#Only worth getting current IP address with first domain
cf_ddns_ip
cf_ddns_authheader
fi
cf_ddns_seeka
cf_ddns_checka
if [ $cf_nonexistsrecord -eq 1 ]; then
cf_ddns_currentip
if [[ $ip != $old_ip ]]; then
cf_ddns_set_identifier
cf_ddns_update
cf_ddns_status
fi
fi
}
cf_parameter_commands () {
case "$parameter_current" in
"-debug")
debug_mode_active=1
;;
"-help")
echo "# crontab\n"
echo "*/5 * * * * /bin/bash /home/user/cloudflare-ddns-updater/cloudflare-init.sh"
echo '*/5 * * * * /bin/bash /home/user/cloudflare-ddns-updater/cloudflare-init.sh mydomain.com example.com www.example.com x1.example.com'
echo -e $output_help
;;
*)
echo "Unknown ***************************"
;;
esac
}
cf_err_human () {
err_is_human=0
if [ ${#auth_email} -eq 0 ]; then
err_is_human=1
logger_output="DDNS Updater: ERROR [auth_email] record not been defined"
debug_output+=$logger_output"\n"
logger -s $logger_output
fi
if [ $auth_method != "token" ] && [ $auth_method != "global" ]; then
err_is_human=1
logger_output='DDNS Updater: ERROR [auth_method] is invaled it has to be defined "token" "global" defined'
debug_output+=$logger_output"\n"
logger -s $logger_output
fi
if [ ${#auth_key} -eq 0 ]; then
err_is_human=1
logger_output="DDNS Updater: ERROR [auth_key] record not been defined"
debug_output+=$logger_output"\n"
logger -s $logger_output
fi
if [ ${#zone_identifier} -eq 0 ]; then
err_is_human=1
logger_output="DDNS Updater: ERROR [zone_identifier] record has not been defined"
debug_output+=$logger_output"\n"
logger -s $logger_output
fi
if [ ${#record_name} -eq 0 ] && [ $argument_total -eq 0 ]; then
err_is_human=1
logger_output="DDNS Updater: ERROR [record_name] record not has been defined"
debug_output+=$logger_output"\n"
logger -s $logger_output
fi
if [ -z "$tolerant_is_set" ]; then
# if tolerant_is_set has not been set up it will be strict
tolerant_is_set=0
fi
if [ $tolerant_is_set -lt 0 ] || [ $tolerant_is_set -gt 1 ]; then
err_is_human=1
logger_output="DDNS Updater: ERROR [tolerant_is_set] can only by 0 or 1"
debug_output+=$logger_output"\n"
logger -s $logger_output
fi
if [ $err_is_human -eq 1 ]; then
#It is done this way so all errors get disclosed
debug_output_echo
exit 1
fi
}
argument_total=$#
tolerant_is_set=1
debug_output=""
cf_err_human
if [ $# -ne 0 ]; then
# If a parameter has been defined in will ignore any setting in [record_name]
parameter=("$@")
for (( argument_depth=0 ; argument_depth < argument_total ; argument_depth++ )); do
parameter_current=${parameter[argument_depth]}
first_character=${parameter_current:0:1}
if [ $first_character = "-" ]; then
cf_parameter_commands
else
record_name=${parameter_current}
cf_ddns
fi
done
else
# If no parameter been used it will use one above [record_name]
cf_ddns
fi
debug_output_echo
exit $err_is_human

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