Merge b0792f1cff into ac2f74f980
Rui
1 year ago
committed by
GitHub
commit
01dd96134b
5 changed files with 525 additions and 288 deletions
@ -1,123 +1,183 @@ |
||||
#!/bin/bash |
||||
## change to "bin/sh" when necessary |
||||
|
||||
auth_email="" # The email used to login 'https://dash.cloudflare.com' |
||||
auth_method="token" # Set to "global" for Global API Key or "token" for Scoped API Token |
||||
auth_key="" # Your API Token or Global API Key |
||||
zone_identifier="" # Can be found in the "Overview" tab of your domain |
||||
record_name="" # Which record you want to be synced |
||||
ttl="3600" # Set the DNS TTL (seconds) |
||||
proxy="false" # Set the proxy to true or false |
||||
sitename="" # Title of site "Example Site" |
||||
slackchannel="" # Slack Channel #example |
||||
slackuri="" # URI for Slack WebHook "https://hooks.slack.com/services/xxxxx" |
||||
discorduri="" # URI for Discord WebHook "https://discordapp.com/api/webhooks/xxxxx" |
||||
|
||||
|
||||
########################################### |
||||
## Check if we have a public IP |
||||
########################################### |
||||
ipv4_regex='([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\.([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\.([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\.([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])' |
||||
ip=$(curl -s -4 https://cloudflare.com/cdn-cgi/trace | grep -E '^ip'); ret=$? |
||||
if [[ ! $ret == 0 ]]; then # In the case that cloudflare failed to return an ip. |
||||
# Attempt to get the ip from other websites. |
||||
# display_help function: Displays the usage instructions for the script. |
||||
display_help(){ |
||||
logger "Usage: $0 [local|file|pass]" |
||||
logger " local - Load variables from this script" |
||||
logger " file - Load variables from a file" |
||||
logger " pass - Load variables from pass" |
||||
} |
||||
|
||||
# load_variables function: Loads the required variables based on the input option. |
||||
load_variables(){ |
||||
case "$1" in |
||||
"local") |
||||
# Load variables from this script |
||||
auth_email="" # The email used to login 'https://dash.cloudflare.com' |
||||
auth_method="" # Set to "global" for Global API Key or "token" for Scoped API Token |
||||
auth_key="" # Your API Token or Global API Key |
||||
zone_identifier="" # Can be found in the "Overview" tab of your domain |
||||
record_name="" # Which record you want to be synced |
||||
ttl="3600" # Set the DNS TTL (seconds) |
||||
proxy="false" # Set the proxy to true or false |
||||
sitename="" # Title of site "Example Site" |
||||
slackchannel="" # Slack Channel #example |
||||
slackuri="" # URI for Slack WebHook "https://hooks.slack.com/services/xxxxx" |
||||
discorduri="" # URI for Discord WebHook "https://discordapp.com/api/webhooks/xxxxx" |
||||
;; |
||||
"file") |
||||
# Load variables from file |
||||
CONFIG_FILE="$HOME/.cloudflare/config4.ini" |
||||
|
||||
# Check if the configuration file exists |
||||
if [ -f "$CONFIG_FILE" ]; then |
||||
# Load configuration from the file |
||||
source "$CONFIG_FILE" |
||||
else |
||||
logger "Error: Configuration file '$CONFIG_FILE' not found." |
||||
exit 1 |
||||
fi |
||||
;; |
||||
"pass") |
||||
# Load variables from pass |
||||
source <(pass credentials/cloudflare) |
||||
;; |
||||
*) |
||||
logger "Invalid load_variables option" |
||||
exit 1 |
||||
;; |
||||
esac |
||||
} |
||||
|
||||
# validate_variables function: Validates the required variables. |
||||
validate_variables(){ |
||||
# Validate required variables |
||||
if [[ -z $auth_email || -z $auth_key || -z $zone_identifier || -z $record_name ]]; then |
||||
logger "Missing required variables. Please provide values for 'auth_email', 'auth_key', 'zone_identifier', and 'record_name'." |
||||
exit 1 |
||||
fi |
||||
} |
||||
|
||||
# check_ipv4_is_available function: Checks if IPv4 is available and retrieves the IP address. |
||||
check_ipv4_is_available(){ |
||||
ipv4_regex='([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\.([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\.([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\.([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])' |
||||
|
||||
ip=$(curl -s -4 https://cloudflare.com/cdn-cgi/trace | grep -E '^ip=' | cut -d '=' -f 2) |
||||
|
||||
if [[ -z $ip ]]; then |
||||
# Cloudflare did not return an IP, try other sources. |
||||
ip=$(curl -s https://api.ipify.org || curl -s https://ipv4.icanhazip.com) |
||||
else |
||||
# Extract just the ip from the ip line from cloudflare. |
||||
ip=$(echo $ip | sed -E "s/^ip=($ipv4_regex)$/\1/") |
||||
fi |
||||
|
||||
# Use regex to check for proper IPv4 format. |
||||
if [[ ! $ip =~ ^$ipv4_regex$ ]]; then |
||||
logger -s "DDNS Updater: Failed to find a valid IP." |
||||
exit 2 |
||||
fi |
||||
|
||||
########################################### |
||||
## Check and set the proper auth header |
||||
########################################### |
||||
if [[ "${auth_method}" == "global" ]]; then |
||||
auth_header="X-Auth-Key:" |
||||
else |
||||
auth_header="Authorization: Bearer" |
||||
fi |
||||
|
||||
########################################### |
||||
## Seek for the A record |
||||
########################################### |
||||
|
||||
logger "DDNS Updater: Check Initiated" |
||||
record=$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones/$zone_identifier/dns_records?type=A&name=$record_name" \ |
||||
-H "X-Auth-Email: $auth_email" \ |
||||
-H "$auth_header $auth_key" \ |
||||
-H "Content-Type: application/json") |
||||
|
||||
########################################### |
||||
## 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 ${record_name})" |
||||
exit 1 |
||||
fi |
||||
|
||||
########################################### |
||||
## Get existing IP |
||||
########################################### |
||||
old_ip=$(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 ${record_name} has not changed." |
||||
exit 0 |
||||
fi |
||||
|
||||
########################################### |
||||
## Set the record identifier from result |
||||
########################################### |
||||
record_identifier=$(echo "$record" | sed -E 's/.*"id":"([A-Za-z0-9_]+)".*/\1/') |
||||
|
||||
########################################### |
||||
## Change the IP@Cloudflare using the API |
||||
########################################### |
||||
update=$(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\":${proxy}}") |
||||
|
||||
########################################### |
||||
## Report the status |
||||
########################################### |
||||
case "$update" in |
||||
*"\"success\":false"*) |
||||
echo -e "DDNS Updater: $ip $record_name DDNS failed for $record_identifier ($ip). DUMPING RESULTS:\n$update" | logger -s |
||||
if [[ $slackuri != "" ]]; then |
||||
curl -L -X POST $slackuri \ |
||||
--data-raw '{ |
||||
"channel": "'$slackchannel'", |
||||
"text" : "'"$sitename"' DDNS Update Failed: '$record_name': '$record_identifier' ('$ip')." |
||||
}' |
||||
else |
||||
# Use regex to check for proper IPv4 format. |
||||
if [[ ! $ip =~ ^$ipv4_regex$ ]]; then |
||||
logger -s "DDNS Updater: Failed to find a valid IP from Cloudflare." |
||||
exit 1 |
||||
fi |
||||
fi |
||||
if [[ $discorduri != "" ]]; then |
||||
curl -i -H "Accept: application/json" -H "Content-Type:application/json" -X POST \ |
||||
--data-raw '{ |
||||
"content" : "'"$sitename"' DDNS Update Failed: '$record_name': '$record_identifier' ('$ip')." |
||||
}' $discorduri |
||||
} |
||||
|
||||
# set_auth_headers function: Sets the authentication headers based on the authentication method. |
||||
set_auth_headers(){ |
||||
if [[ "${auth_method}" == "global" ]]; then |
||||
auth_header="X-Auth-Key:" |
||||
else |
||||
auth_header="Authorization: Bearer" |
||||
fi |
||||
exit 1;; |
||||
*) |
||||
logger "DDNS Updater: $ip $record_name DDNS updated." |
||||
if [[ $slackuri != "" ]]; then |
||||
curl -L -X POST $slackuri \ |
||||
--data-raw '{ |
||||
"channel": "'$slackchannel'", |
||||
"text" : "'"$sitename"' Updated: '$record_name''"'"'s'""' new IP Address is '$ip'" |
||||
}' |
||||
} |
||||
|
||||
# check_if_a_record_exists function: Checks if the DNS record exists in Cloudflare. |
||||
check_if_a_record_exists(){ |
||||
logger "DDNS Updater: Check Initiated" |
||||
record=$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones/$zone_identifier/dns_records?type=A&name=$record_name" \ |
||||
-H "X-Auth-Email: $auth_email" \ |
||||
-H "$auth_header $auth_key" \ |
||||
-H "Content-Type: application/json") |
||||
|
||||
if [[ $record == *"\"count\":0"* ]]; then |
||||
logger -s "DDNS Updater: Record does not exist, perhaps create one first? (${ip} for ${record_name})" |
||||
exit 1 |
||||
fi |
||||
if [[ $discorduri != "" ]]; then |
||||
curl -i -H "Accept: application/json" -H "Content-Type:application/json" -X POST \ |
||||
--data-raw '{ |
||||
"content" : "'"$sitename"' Updated: '$record_name''"'"'s'""' new IP Address is '$ip'" |
||||
}' $discorduri |
||||
} |
||||
|
||||
# get_current_ip_from_cloudflare function: Retrieves the current IP address from Cloudflare. |
||||
get_current_ip_from_cloudflare(){ |
||||
old_ip=$(logger "$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 ${record_name} has not changed." |
||||
exit 0 |
||||
fi |
||||
exit 0;; |
||||
} |
||||
|
||||
# update_ip_on_cloudflare function: Updates the IP address on Cloudflare. |
||||
update_ip_on_cloudflare(){ |
||||
record_identifier=$(logger "$record" | sed -E 's/.*"id":"([A-Za-z0-9_]+)".*/\1/') |
||||
|
||||
update=$(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\":${proxy}}") |
||||
} |
||||
|
||||
# send_webhooks function: Sends webhooks to Slack and Discord. |
||||
send_webhooks(){ |
||||
case "$update" in |
||||
*"\"success\":false"*) |
||||
logger -e "DDNS Updater: $ip $record_name DDNS failed for $record_identifier ($ip). DUMPING RESULTS:\n$update" | logger -s |
||||
if [[ $slackuri != "" ]]; then |
||||
curl -L -X POST $slackuri \ |
||||
--data-raw '{ |
||||
"channel": "'$slackchannel'", |
||||
"text" : "'"$sitename"' DDNS Update Failed: '$record_name': '$record_identifier' ('$ip')." |
||||
}' |
||||
fi |
||||
if [[ $discorduri != "" ]]; then |
||||
curl -i -H "Accept: application/json" -H "Content-Type:application/json" -X POST \ |
||||
--data-raw '{ |
||||
"content" : "'"$sitename"' DDNS Update Failed: '$record_name': '$record_identifier' ('$ip')." |
||||
}' $discorduri |
||||
fi |
||||
exit 1;; |
||||
*) |
||||
logger "DDNS Updater: $ip $record_name DDNS updated." |
||||
if [[ $slackuri != "" ]]; then |
||||
curl -L -X POST $slackuri \ |
||||
--data-raw '{ |
||||
"channel": "'$slackchannel'", |
||||
"text" : "'"$sitename"' Updated: '$record_name''"'"'s'""' new IP Address is '$ip'" |
||||
}' |
||||
fi |
||||
if [[ $discorduri != "" ]]; then |
||||
curl -i -H "Accept: application/json" -H "Content-Type:application/json" -X POST \ |
||||
--data-raw '{ |
||||
"content" : "'"$sitename"' Updated: '$record_name''"'"'s'""' new IP Address is '$ip'" |
||||
}' $discorduri |
||||
fi |
||||
exit 0;; |
||||
esac |
||||
} |
||||
|
||||
# main function: Entry point of the script. |
||||
main(){ |
||||
validate_variables |
||||
check_ipv4_is_available |
||||
set_auth_headers |
||||
check_if_a_record_exists |
||||
get_current_ip_from_cloudflare |
||||
update_ip_on_cloudflare |
||||
send_webhooks |
||||
} |
||||
|
||||
# switch for environment variables loading |
||||
case "$1" in |
||||
"local"|"file"|"pass") |
||||
load_variables "$1" |
||||
main |
||||
;; |
||||
*) |
||||
display_help |
||||
exit 1 |
||||
;; |
||||
esac |
||||
@ -1,186 +1,232 @@ |
||||
#!/bin/bash |
||||
## change to "bin/sh" when necessary |
||||
|
||||
############## CLOUDFLARE CREDENTIALS ############## |
||||
# @auth_email - The email used to login 'https://dash.cloudflare.com' |
||||
# @auth_method - Set to "global" for Global API Key or "token" for Scoped API Token |
||||
# @auth_key - Your API Token or Global API Key |
||||
# @zone_identifier - Can be found in the "Overview" tab of your domain |
||||
# -------------------------------------------------- # |
||||
auth_email="" |
||||
auth_method="token" |
||||
auth_key="" |
||||
zone_identifier="" |
||||
|
||||
############# DNS RECORD CONFIGURATION ############# |
||||
# @record_name - Which record you want to be synced |
||||
# @ttl - DNS TTL (seconds), can be set between (30 if enterprise) 60 and 86400 seconds, or 1 for Automatic |
||||
# @proxy - Set the proxy to true or false |
||||
# -------------------------------------------------- # |
||||
record_name="" |
||||
ttl="3600" |
||||
proxy="false" |
||||
|
||||
############### SCRIPT CONFIGURATION ############### |
||||
# @static_IPv6_mode - Useful if you are using EUI-64 IPv6 address with SLAAC IPv6 suffix token. (Privacy Extensions) |
||||
# + Or some kind of static IPv6 assignment from DHCP server configuration, etc |
||||
# + If set to false, the IPv6 address will be acquired from external services |
||||
# @last_notable_hexes - Used with `static_IPv6_mode`. Configure this to target what specific IPv6 address to search for |
||||
# + E.g. Your global primary IPv6 address is 2404:6800:4001:80e::59ec:ab12:34cd, then |
||||
# + You can put values (i.e. static suffixes) such as "34cd", "ab12:34cd" and etc |
||||
# @log_header_name - Header name used for logs |
||||
# -------------------------------------------------- # |
||||
static_IPv6_mode="false" |
||||
last_notable_hexes="ffff:ffff" |
||||
log_header_name="DDNS Updater_v6" |
||||
|
||||
############# WEBHOOKS CONFIGURATION ############### |
||||
# @sitename - Title of site "Example Site" |
||||
# @slackchannel - Slack Channel #example |
||||
# @slackuri - URI for Slack WebHook "https://hooks.slack.com/services/xxxxx" |
||||
# @discorduri - URI for Discord WebHook "https://discordapp.com/api/webhooks/xxxxx" |
||||
# -------------------------------------------------- # |
||||
sitename="" |
||||
slackchannel="" |
||||
slackuri="" |
||||
discorduri="" |
||||
|
||||
|
||||
|
||||
################################################ |
||||
## Make sure we have a valid IPv6 connection |
||||
################################################ |
||||
if ! { curl -6 -s --head --fail https://ipv6.google.com >/dev/null; }; then |
||||
logger -s "$log_header_name: Unable to establish a valid IPv6 connection to a known host." |
||||
display_help(){ |
||||
logger "Usage: $0 [local|file|pass]" |
||||
logger " local - Load variables from this script" |
||||
logger " file - Load variables from a file" |
||||
logger " pass - Load variables from pass" |
||||
} |
||||
|
||||
load_variables(){ |
||||
case "$1" in |
||||
"local") |
||||
############## CLOUDFLARE CREDENTIALS ############## |
||||
# @auth_email - The email used to login 'https://dash.cloudflare.com' |
||||
# @auth_method - Set to "global" for Global API Key or "token" for Scoped API Token |
||||
# @auth_key - Your API Token or Global API Key |
||||
# @zone_identifier - Can be found in the "Overview" tab of your domain |
||||
# -------------------------------------------------- # |
||||
auth_email="" |
||||
auth_method="token" |
||||
auth_key="" |
||||
zone_identifier="" |
||||
|
||||
############# DNS RECORD CONFIGURATION ############# |
||||
# @record_name - Which record you want to be synced |
||||
# @ttl - DNS TTL (seconds), can be set between (30 if enterprise) 60 and 86400 seconds, or 1 for Automatic |
||||
# @proxy - Set the proxy to true or false |
||||
# -------------------------------------------------- # |
||||
record_name="" |
||||
ttl="3600" |
||||
proxy="false" |
||||
|
||||
############### SCRIPT CONFIGURATION ############### |
||||
# @static_IPv6_mode - Useful if you are using EUI-64 IPv6 address with SLAAC IPv6 suffix token. (Privacy Extensions) |
||||
# + Or some kind of static IPv6 assignment from DHCP server configuration, etc |
||||
# + If set to false, the IPv6 address will be acquired from external services |
||||
# @last_notable_hexes - Used with `static_IPv6_mode`. Configure this to target what specific IPv6 address to search for |
||||
# + E.g. Your global primary IPv6 address is 2404:6800:4001:80e::59ec:ab12:34cd, then |
||||
# + You can put values (i.e. static suffixes) such as "34cd", "ab12:34cd" and etc |
||||
# @log_header_name - Header name used for logs |
||||
# -------------------------------------------------- # |
||||
static_IPv6_mode="false" |
||||
last_notable_hexes="ffff:ffff" |
||||
log_header_name="DDNS Updater_v6" |
||||
|
||||
############# WEBHOOKS CONFIGURATION ############### |
||||
# @sitename - Title of site "Example Site" |
||||
# @slackchannel - Slack Channel #example |
||||
# @slackuri - URI for Slack WebHook "https://hooks.slack.com/services/xxxxx" |
||||
# @discorduri - URI for Discord WebHook "https://discordapp.com/api/webhooks/xxxxx" |
||||
# -------------------------------------------------- # |
||||
sitename="" |
||||
slackchannel="" |
||||
slackuri="" |
||||
discorduri="" |
||||
;; |
||||
"file") |
||||
# Load variables from file |
||||
CONFIG_FILE="$HOME/.cloudflare/config6.ini" |
||||
|
||||
# Check if the configuration file exists |
||||
if [ -f "$CONFIG_FILE" ]; then |
||||
# Load configuration from the file |
||||
source "$CONFIG_FILE" |
||||
else |
||||
logger "Error: Configuration file '$CONFIG_FILE' not found." |
||||
exit 1 |
||||
fi |
||||
;; |
||||
"pass") |
||||
# Load variables from pass |
||||
source <(pass credentials/cloudflare) |
||||
;; |
||||
*) |
||||
logger "Invalid load_variables option" |
||||
exit 1 |
||||
;; |
||||
esac |
||||
} |
||||
|
||||
validate_variables(){ |
||||
# Validate required variables |
||||
if [[ -z $auth_email || -z $auth_key || -z $zone_identifier || -z $record_name ]]; then |
||||
logger "Missing required variables. Please provide values for 'auth_email', 'auth_key', 'zone_identifier', and 'record_name'." |
||||
exit 1 |
||||
fi |
||||
|
||||
################################################ |
||||
## Finding our IPv6 address |
||||
################################################ |
||||
# Regex credits to https://stackoverflow.com/a/17871737 |
||||
ipv6_regex="(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))" |
||||
|
||||
if $static_IPv6_mode; then |
||||
# Test whether 'ip' command is available |
||||
if { command -v "ip" &>/dev/null; }; then |
||||
ip=$(ip -6 -o addr show scope global primary -deprecated | grep -oE "$ipv6_regex" | grep -oE ".*($last_notable_hexes)$") |
||||
else |
||||
# Fall back to 'ifconfig' command |
||||
ip=$(ifconfig | grep -oE "$ipv6_regex" | grep -oE ".*($last_notable_hexes)$") |
||||
fi |
||||
} |
||||
|
||||
|
||||
check_ipv6_is_available(){ |
||||
if ! { curl -6 -s --head --fail https://ipv6.google.com >/dev/null; }; then |
||||
logger -s "$log_header_name: Unable to establish a valid IPv6 connection to a known host." |
||||
exit 1 |
||||
fi |
||||
else |
||||
# Use external services to discover our system's preferred IPv6 address |
||||
ip=$(curl -s -6 https://cloudflare.com/cdn-cgi/trace | grep -E '^ip') |
||||
ret=$? |
||||
if [[ ! $ret == 0 ]]; then # In the case that cloudflare failed to return an ip. |
||||
# Attempt to get the ip from other websites. |
||||
ip=$(curl -s -6 https://api64.ipify.org || curl -s -6 https://ipv6.icanhazip.com) |
||||
|
||||
# Regex credits to https://stackoverflow.com/a/17871737 |
||||
ipv6_regex="(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))" |
||||
|
||||
if $static_IPv6_mode; then |
||||
# Test whether 'ip' command is available |
||||
if { command -v "ip" &>/dev/null; }; then |
||||
ip=$(ip -6 -o addr show scope global primary -deprecated | grep -oE "$ipv6_regex" | grep -oE ".*($last_notable_hexes)$") |
||||
else |
||||
# Fall back to 'ifconfig' command |
||||
ip=$(ifconfig | grep -oE "$ipv6_regex" | grep -oE ".*($last_notable_hexes)$") |
||||
fi |
||||
else |
||||
# Extract just the ip from the ip line from cloudflare. |
||||
ip=$(echo $ip | sed -E "s/^ip=($ipv6_regex)$/\1/") |
||||
# Use external services to discover our system's preferred IPv6 address |
||||
ip=$(curl -s -6 https://cloudflare.com/cdn-cgi/trace | grep -E '^ip') |
||||
ret=$? |
||||
if [[ ! $ret == 0 ]]; then # In the case that cloudflare failed to return an ip. |
||||
# Attempt to get the ip from other websites. |
||||
ip=$(curl -s -6 https://api64.ipify.org || curl -s -6 https://ipv6.icanhazip.com) |
||||
else |
||||
# Extract just the ip from the ip line from cloudflare. |
||||
ip=$(echo $ip | sed -E "s/^ip=($ipv6_regex)$/\1/") |
||||
fi |
||||
fi |
||||
fi |
||||
|
||||
# Check point: Make sure the collected IPv6 address is valid |
||||
if [[ ! $ip =~ ^$ipv6_regex$ ]]; then |
||||
logger -s "$log_header_name: Failed to find a valid IPv6 address." |
||||
exit 1 |
||||
fi |
||||
|
||||
################################################ |
||||
## Check and set the proper auth header |
||||
################################################ |
||||
if [[ "${auth_method}" == "global" ]]; then |
||||
auth_header="X-Auth-Key:" |
||||
else |
||||
auth_header="Authorization: Bearer" |
||||
fi |
||||
|
||||
################################################ |
||||
## Seek for the AAAA record |
||||
################################################ |
||||
logger "$log_header_name: Check Initiated" |
||||
record=$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones/$zone_identifier/dns_records?type=AAAA&name=$record_name" \ |
||||
-H "X-Auth-Email: $auth_email" \ |
||||
-H "$auth_header $auth_key" \ |
||||
-H "Content-Type: application/json") |
||||
|
||||
################################################ |
||||
## Check if the domain has an AAAA record |
||||
################################################ |
||||
if [[ $record == *"\"count\":0"* ]]; then |
||||
logger -s "$log_header_name: Record does not exist, perhaps create one first? (${ip} for ${record_name})" |
||||
exit 1 |
||||
fi |
||||
|
||||
################################################ |
||||
## Get existing IP |
||||
################################################ |
||||
old_ip=$(echo "$record" | sed -E 's/.*"content":"'${ipv6_regex}'".*/\1/') |
||||
# Check point: Make sure the collected IPv6 address is valid |
||||
if [[ ! $ip =~ ^$ipv6_regex$ ]]; then |
||||
logger -s "$log_header_name: Failed to find a valid IPv6 address." |
||||
exit 1 |
||||
fi |
||||
} |
||||
|
||||
# Make sure the extracted IPv6 address is valid |
||||
if [[ ! $old_ip =~ ^$ipv6_regex$ ]]; then |
||||
logger -s "$log_header_name: Unable to extract existing IPv6 address from DNS record." |
||||
exit 1 |
||||
fi |
||||
|
||||
# Compare if they're the same |
||||
if [[ $ip == $old_ip ]]; then |
||||
logger "$log_header_name: IP ($ip) for ${record_name} has not changed." |
||||
exit 0 |
||||
fi |
||||
|
||||
################################################ |
||||
## Set the record identifier from result |
||||
################################################ |
||||
record_identifier=$(echo "$record" | sed -E 's/.*"id":"([A-Za-z0-9_]+)".*/\1/') |
||||
|
||||
################################################ |
||||
## Change the IP@Cloudflare using the API |
||||
################################################ |
||||
update=$(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 $auth_key" \ |
||||
-H "Content-Type: application/json" \ |
||||
--data "{\"content\":\"$ip\",\"ttl\":\"$ttl\",\"proxied\":$proxy}") |
||||
|
||||
################################################ |
||||
## Report the status |
||||
################################################ |
||||
case "$update" in |
||||
*"\"success\":false"*) |
||||
echo -e "$log_header_name: $ip $record_name DDNS failed for $record_identifier ($ip). DUMPING RESULTS:\n$update" | logger -s |
||||
if [[ $slackuri != "" ]]; then |
||||
curl -L -X POST $slackuri \ |
||||
--data-raw "{ |
||||
\"channel\": \"$slackchannel\", |
||||
\"text\": \"$sitename DDNS Update Failed: $record_name: $record_identifier ($ip).\" |
||||
}" |
||||
set_auth_headers(){ |
||||
if [[ "${auth_method}" == "global" ]]; then |
||||
auth_header="X-Auth-Key:" |
||||
else |
||||
auth_header="Authorization: Bearer" |
||||
fi |
||||
if [[ $discorduri != "" ]]; then |
||||
curl -i -H "Accept: application/json" -H "Content-Type:application/json" -X POST \ |
||||
--data-raw "{ |
||||
\"content\": \"$sitename DDNS Update Failed: $record_name: $record_identifier ($ip).\" |
||||
}" $discorduri |
||||
} |
||||
|
||||
check_if_aaaa_record_exists(){ |
||||
logger "$log_header_name: Check Initiated" |
||||
record=$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones/$zone_identifier/dns_records?type=AAAA&name=$record_name" \ |
||||
-H "X-Auth-Email: $auth_email" \ |
||||
-H "$auth_header $auth_key" \ |
||||
-H "Content-Type: application/json") |
||||
if [[ $record == *"\"count\":0"* ]]; then |
||||
logger -s "$log_header_name: Record does not exist, perhaps create one first? (${ip} for ${record_name})" |
||||
exit 1 |
||||
fi |
||||
exit 1 |
||||
;; |
||||
*) |
||||
logger "$log_header_name: $ip $record_name DDNS updated." |
||||
if [[ $slackuri != "" ]]; then |
||||
curl -L -X POST $slackuri \ |
||||
--data-raw "{ |
||||
\"channel\": \"$slackchannel\", |
||||
\"text\": \"$sitename Updated: $record_name's new IPv6 Address is $ip\" |
||||
}" |
||||
} |
||||
|
||||
get_current_ip_from_cloudflare(){ |
||||
old_ip=$(echo "$record" | sed -E 's/.*"content":"'${ipv6_regex}'".*/\1/') |
||||
|
||||
# Make sure the extracted IPv6 address is valid |
||||
if [[ ! $old_ip =~ ^$ipv6_regex$ ]]; then |
||||
logger -s "$log_header_name: Unable to extract existing IPv6 address from DNS record." |
||||
exit 1 |
||||
fi |
||||
if [[ $discorduri != "" ]]; then |
||||
curl -i -H "Accept: application/json" -H "Content-Type:application/json" -X POST \ |
||||
--data-raw "{ |
||||
\"content\": \"$sitename Updated: $record_name's new IPv6 Address is $ip\" |
||||
}" $discorduri |
||||
|
||||
# Compare if they're the same |
||||
if [[ $ip == $old_ip ]]; then |
||||
logger "$log_header_name: IP ($ip) for ${record_name} has not changed." |
||||
exit 0 |
||||
fi |
||||
exit 0 |
||||
;; |
||||
} |
||||
|
||||
update_ip_on_cloudflare(){ |
||||
record_identifier=$(echo "$record" | sed -E 's/.*"id":"([A-Za-z0-9_]+)".*/\1/') |
||||
update=$(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 $auth_key" \ |
||||
-H "Content-Type: application/json" \ |
||||
--data "{\"content\":\"$ip\",\"ttl\":\"$ttl\",\"proxied\":$proxy}") |
||||
} |
||||
|
||||
send_webhooks(){ |
||||
case "$update" in |
||||
*"\"success\":false"*) |
||||
echo -e "$log_header_name: $ip $record_name DDNS failed for $record_identifier ($ip). DUMPING RESULTS:\n$update" | logger -s |
||||
if [[ $slackuri != "" ]]; then |
||||
curl -L -X POST $slackuri \ |
||||
--data-raw "{ |
||||
\"channel\": \"$slackchannel\", |
||||
\"text\": \"$sitename DDNS Update Failed: $record_name: $record_identifier ($ip).\" |
||||
}" |
||||
fi |
||||
if [[ $discorduri != "" ]]; then |
||||
curl -i -H "Accept: application/json" -H "Content-Type:application/json" -X POST \ |
||||
--data-raw "{ |
||||
\"content\": \"$sitename DDNS Update Failed: $record_name: $record_identifier ($ip).\" |
||||
}" $discorduri |
||||
fi |
||||
exit 1 |
||||
;; |
||||
*) |
||||
logger "$log_header_name: $ip $record_name DDNS updated." |
||||
if [[ $slackuri != "" ]]; then |
||||
curl -L -X POST $slackuri \ |
||||
--data-raw "{ |
||||
\"channel\": \"$slackchannel\", |
||||
\"text\": \"$sitename Updated: $record_name's new IPv6 Address is $ip\" |
||||
}" |
||||
fi |
||||
if [[ $discorduri != "" ]]; then |
||||
curl -i -H "Accept: application/json" -H "Content-Type:application/json" -X POST \ |
||||
--data-raw "{ |
||||
\"content\": \"$sitename Updated: $record_name's new IPv6 Address is $ip\" |
||||
}" $discorduri |
||||
fi |
||||
exit 0 |
||||
;; |
||||
esac |
||||
} |
||||
|
||||
main(){ |
||||
validate_variables |
||||
check_ipv6_is_available |
||||
set_auth_headers |
||||
check_if_aaaa_record_exists |
||||
get_current_ip_from_cloudflare |
||||
update_ip_on_cloudflare |
||||
send_webhooks |
||||
} |
||||
|
||||
# switch for environment variables loading |
||||
case "$1" in |
||||
"local"|"file"|"pass") |
||||
load_variables "$1" |
||||
main |
||||
;; |
||||
*) |
||||
display_help |
||||
exit 1 |
||||
;; |
||||
esac |
||||
@ -0,0 +1,11 @@ |
||||
auth_email="" # The email used to login 'https://dash.cloudflare.com' |
||||
auth_method="" # Set to "global" for Global API Key or "token" for Scoped API Token |
||||
auth_key="" # Your API Token or Global API Key |
||||
zone_identifier="" # Can be found in the "Overview" tab of your domain |
||||
record_name="" # Which record you want to be synced |
||||
ttl="3600" # Set the DNS TTL (seconds) |
||||
proxy="false" # Set the proxy to true or false |
||||
sitename="" # Title of site "Example Site" |
||||
slackchannel="" # Slack Channel #example |
||||
slackuri="" # URI for Slack WebHook "https://hooks.slack.com/services/xxxxx" |
||||
discorduri="" # URI for Discord WebHook "https://discordapp.com/api/webhooks/xxxxx" |
||||
@ -0,0 +1,43 @@ |
||||
############## CLOUDFLARE CREDENTIALS ############## |
||||
# @auth_email - The email used to login 'https://dash.cloudflare.com' |
||||
# @auth_method - Set to "global" for Global API Key or "token" for Scoped API Token |
||||
# @auth_key - Your API Token or Global API Key |
||||
# @zone_identifier - Can be found in the "Overview" tab of your domain |
||||
# -------------------------------------------------- # |
||||
auth_email="" |
||||
auth_method="token" |
||||
auth_key="" |
||||
zone_identifier="" |
||||
|
||||
############# DNS RECORD CONFIGURATION ############# |
||||
# @record_name - Which record you want to be synced |
||||
# @ttl - DNS TTL (seconds), can be set between (30 if enterprise) 60 and 86400 seconds, or 1 for Automatic |
||||
# @proxy - Set the proxy to true or false |
||||
# -------------------------------------------------- # |
||||
record_name="" |
||||
ttl="3600" |
||||
proxy="false" |
||||
|
||||
############### SCRIPT CONFIGURATION ############### |
||||
# @static_IPv6_mode - Useful if you are using EUI-64 IPv6 address with SLAAC IPv6 suffix token. (Privacy Extensions) |
||||
# + Or some kind of static IPv6 assignment from DHCP server configuration, etc |
||||
# + If set to false, the IPv6 address will be acquired from external services |
||||
# @last_notable_hexes - Used with `static_IPv6_mode`. Configure this to target what specific IPv6 address to search for |
||||
# + E.g. Your global primary IPv6 address is 2404:6800:4001:80e::59ec:ab12:34cd, then |
||||
# + You can put values (i.e. static suffixes) such as "34cd", "ab12:34cd" and etc |
||||
# @log_header_name - Header name used for logs |
||||
# -------------------------------------------------- # |
||||
static_IPv6_mode="false" |
||||
last_notable_hexes="ffff:ffff" |
||||
log_header_name="DDNS Updater_v6" |
||||
|
||||
############# WEBHOOKS CONFIGURATION ############### |
||||
# @sitename - Title of site "Example Site" |
||||
# @slackchannel - Slack Channel #example |
||||
# @slackuri - URI for Slack WebHook "https://hooks.slack.com/services/xxxxx" |
||||
# @discorduri - URI for Discord WebHook "https://discordapp.com/api/webhooks/xxxxx" |
||||
# -------------------------------------------------- # |
||||
sitename="" |
||||
slackchannel="" |
||||
slackuri="" |
||||
discorduri="" |
||||
Loading…
Reference in new issue