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Add possibility to enable IPv4 or IPv6 check in dynv6

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This commit is contained in:
Alexander Schäferdiek 2019-09-27 22:50:33 +02:00
parent dfea4a8bb9
commit f535a2f3d8
2 changed files with 55 additions and 32 deletions
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81
usr/local/bin/dynv6
View file

@ -16,6 +16,8 @@ The following are at least required for the script to work:
- DYNV6_MAIL_ADDRESS="" // (optional) mail.rc has to be configured
- DYNV6_TOKEN="" // the dynv6 token
- DYNV6_HOSTNAME="" // the dynv6 hostname
- DYNV6_IPV4_ENABLED=true // if should update ipv4
- DYNV6_IPV6_ENABLED=true // if should update ipv6
You can copy this script to '/usr/local/bin' and use create a custom CONFIG_FILE as user. Examples can be found in '/usr/share/doc/<scriptname>'.
EOF
@ -45,17 +47,32 @@ source_config() {
}
apply_defaults() {
[[ -z ${DYNV6_MAIL_ENABLED} ]] && DYNV6_MAIL_ENABLED=false;
[[ -z ${DYNV6_MAIL_ADDRESS} ]] && DYNV6_MAIL_ADDRESS="";
[[ -z ${DYNV6_TOKEN} ]] && DYNV6_TOKEN="";
[[ -z ${DYNV6_HOSTNAME} ]] && DYNV6_HOSTNAME="";
if [ -z ${DYNV6_MAIL_ENABLED} ]; then
DYNV6_MAIL_ENABLED=false;
fi
if [ -z ${DYNV6_MAIL_ADDRESS} ]; then
DYNV6_MAIL_ADDRESS="";
fi
if [ -z ${DYNV6_TOKEN} ]; then
DYNV6_TOKEN="";
fi
if [ -z ${DYNV6_HOSTNAME} ]; then
DYNV6_HOSTNAME="";
fi
if [ -z ${DYNV6_IPV4_ENABLED} ]; then
DYNV6_IPV4_ENABLED=true;
fi
if [ -z ${DYNV6_IPV6_ENABLED} ]; then
DYNV6_IPV6_ENABLED=true;
fi
}
check_required() {
if [[ -z ${DYNV6_TOKEN} ]]; then
if [ -z ${DYNV6_TOKEN} ]; then
echo "DYNV6_TOKEN is required"
exit 1;
fi
if [[ -z ${DYNV6_HOSTNAME} ]]; then
if [ -z ${DYNV6_HOSTNAME} ]; then
echo "DYNV6_HOSTNAME is required"
exit 1;
fi
@ -65,8 +82,8 @@ check_required() {
CONFIG_FILE="$1";
FALLBACK_CONFIG_FILE="${HOME}/.dynv6.conf";
source_config "${CONFIG_FILE}" "${FALLBACK_CONFIG_FILE}";
#apply_defaults;
#check_required;
apply_defaults;
check_required;
# DO NOT CHANGE
token=${DYNV6_TOKEN}
@ -76,34 +93,38 @@ echo "Checking ${hostname}"
# check via service
# ipv6
echo "Testing IPv6";
ipv6Res=$(curl -fsS "http://dynv6.com/api/update?hostname=${hostname}&token=${token}")
ipv6Changed=true;
if [ "${DYNV6_IPV6_ENABLED}" = "true" ]; then
echo "Testing IPv6";
ipv6Res=$(curl -fsS "http://dynv6.com/api/update?hostname=${hostname}&token=${token}")
ipv6Changed=true;
if [ "$ipv6Res" = "addresses unchanged" ]; then
ipv6Changed=false;
fi
if [ "$ipv6Changed" = "true" ]; then
echo "IPv6 changed"
if [ "${ipv6Res}" = "addresses unchanged" ]; then
ipv6Changed=false;
fi
if [ "${ipv6Changed}" = "true" ]; then
echo "IPv6 changed"
if [ "${DYNV6_MAIL_ENABLED}" = true ]; then
HOSTMACHINE=$(hostname)
echo -e "IPv6 for ${hostname} on host ${HOSTMACHINE} changed" | mailx -s "[dynv6 IPv6 ${HOSTMACHINE}] IPv6 changed for ${hostname}" "${DYNV6_MAIL_ADDRESS}"
if [ "${DYNV6_MAIL_ENABLED}" = "true" ]; then
HOSTMACHINE=$(hostname)
echo -e "IPv6 for ${hostname} on host ${HOSTMACHINE} changed" | mailx -s "[dynv6 IPv6 ${HOSTMACHINE}] IPv6 changed for ${hostname}" "${DYNV6_MAIL_ADDRESS}"
fi
fi
fi
# ipv4
echo "Testing IPv4";
ipv4Res=$(curl -fsS "http://ipv4.dynv6.com/api/update?hostname=${hostname}&ipv4=auto&token=${token}")
ipv4Changed=true;
if [ "$ipv4Res" = "addresses unchanged" ]; then
ipv4Changed=false;
fi
if [ "$ipv4Changed" = "true" ]; then
echo "IPv4 changed"
if [ "${DYNV6_IPV4_ENABLED}" = "true" ]; then
echo "Testing IPv4";
ipv4Res=$(curl -fsS "http://ipv4.dynv6.com/api/update?hostname=${hostname}&ipv4=auto&token=${token}")
ipv4Changed=true;
if [ "$ipv4Res" = "addresses unchanged" ]; then
ipv4Changed=false;
fi
if [ "${ipv4Changed}" = "true" ]; then
echo "IPv4 changed"
if [ "${DYNV6_MAIL_ENABLED}" = true ]; then
HOSTMACHINE=$(hostname)
echo -e "IPv4 for ${hostname} on host ${HOSTMACHINE} changed" | mailx -s "[dynv6 IPv4 ${HOSTMACHINE}] IPv4 changed for ${hostname}" "${DYNV6_MAIL_ADDRESS}"
if [ "${DYNV6_MAIL_ENABLED}" = "true" ]; then
HOSTMACHINE=$(hostname)
echo -e "IPv4 for ${hostname} on host ${HOSTMACHINE} changed" | mailx -s "[dynv6 IPv4 ${HOSTMACHINE}] IPv4 changed for ${hostname}" "${DYNV6_MAIL_ADDRESS}"
fi
fi
fi

6
usr/share/doc/dynv6/.dynv6.conf.example
View file

@ -1,5 +1,7 @@
#!/usr/bin/env bash
DYNV6_MAIL_ENABLED= // if notify via mail
DYNV6_MAIL_ENABLED="false" // if notify via mail
DYNV6_MAIL_ADDRESS="" // (optional) mail.rc has to be configured
DYNV6_TOKEN="" // the dynv6 token
DYNV6_HOSTNAME="" // the dynv6 hostname
DYNV6_HOSTNAME="" // the dynv6 hostname
DYNV6_IPV4_ENABLED=true // if should update ipv4
DYNV6_IPV6_ENABLED=true // if should update ipv6