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#!/usr/bin/env sh
#Author StefanAbl
#Usage specify a private keyfile to use with dynv6 'export KEY="path/to/keyfile"'
#if no keyfile is specified, you will be asked if you want to create one in /home/$USER/.ssh/dynv6 and /home/$USER/.ssh/dynv6.pub
######## Public functions #####################
# Please Read this guide first: https://github.com/Neilpang/acme.sh/wiki/DNS-API-Dev-Guide
#Usage: dns_myapi_add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
dns_dynv6_add() {
fulldomain=$1
txtvalue=$2
_info "Using dynv6 api"
_debug fulldomain "$fulldomain"
_debug txtvalue "$txtvalue"
_get_keyfile
_info "using keyfile $dynv6_keyfile"
_get_domain "$fulldomain"
_your_hosts="$(ssh -i "$dynv6_keyfile" api@dynv6.com hosts)"
if ! _contains "$_your_hosts" "$_host"; then
_debug "The host is $_host and the record $_record"
_debug "Dynv6 returned $_your_hosts"
_err "The host $_host does not exist on your dynv6 account"
return 1
fi
_debug "found host on your account"
returnval="$(ssh -i "$dynv6_keyfile" api@dynv6.com hosts \""$_host"\" records set \""$_record"\" txt data \""$txtvalue"\")"
_debug "Dynv6 returend this after record was added: $returnval"
if _contains "$returnval" "created"; then
return 0
elif _contains "$returnval" "updated"; then
return 0
else
_err "Something went wrong! it does not seem like the record was added succesfully"
return 1
fi
return 1
}
#Usage: fulldomain txtvalue
#Remove the txt record after validation.
dns_dynv6_rm() {
fulldomain=$1
txtvalue=$2
_info "Using dynv6 api"
_debug fulldomain "$fulldomain"
_debug txtvalue "$txtvalue"
_get_keyfile
_info "using keyfile $dynv6_keyfile"
_get_domain "$fulldomain"
_your_hosts="$(ssh -i "$dynv6_keyfile" api@dynv6.com hosts)"
if ! _contains "$_your_hosts" "$_host"; then
_debug "The host is $_host and the record $_record"
_debug "Dynv6 returned $_your_hosts"
_err "The host $_host does not exist on your dynv6 account"
return 1
fi
_debug "found host on your account"
_info "$(ssh -i "$dynv6_keyfile" api@dynv6.com hosts "\"$_host\"" records del "\"$_record\"" txt)"
return 0
}
#################### Private functions below ##################################
#Usage: No Input required
#returns
#dynv6_keyfile the path to the new keyfile that has been generated
_generate_new_key() {
dynv6_keyfile="$(eval echo ~"$USER")/.ssh/dynv6"
_info "Path to key file used: $dynv6_keyfile"
if [ ! -f "$dynv6_keyfile" ] && [ ! -f "$dynv6_keyfile.pub" ]; then
_debug "generating key in $dynv6_keyfile and $dynv6_keyfile.pub"
ssh-keygen -f "$dynv6_keyfile" -t ssh-ed25519 -N ''
else
_err "There is already a file in $dynv6_keyfile or $dynv6_keyfile.pub"
return 1
fi
}
#Usage: _acme-challenge.www.example.dynv6.net
#returns
#_host= example.dynv6.net
#_record=_acme-challenge.www
#aborts if not a valid domain
_get_domain() {
_full_domain="$1"
_debug "getting domain for $_full_domain"
if ! _contains "$_full_domain" 'dynv6.net' && ! _contains "$_full_domain" 'dns.army' && ! _contains "$_full_domain" 'dns.navy' && ! _contains "$_full_domain" 'v6.rocks' ; then
_err "The hosts does not seem to be a dynv6 host"
return 1
fi
_record="${_full_domain%.*}"
_record="${_record%.*}"
_record="${_record%.*}"
_debug "The record we are ging to use is $_record"
_host="$_full_domain"
while [ "$(echo "$_host" | grep -o '\.' | wc -l)" != "2" ]; do
_host="${_host#*.}"
done
_debug "And the host is $_host"
return 0
}
# Usage: No input required
#returns
#dynv6_keyfile path to the key that will be used
_get_keyfile() {
_debug "get keyfile method called"
dynv6_keyfile="${dynv6_keyfile:-$(_readaccountconf_mutable dynv6_keyfile)}"
_debug Your key is "$dynv6_keyfile"
if [ -z "$dynv6_keyfile" ]; then
if [ -z "$KEY" ]; then
_err "You did not specify a key to use with dynv6"
_info "Creating new dynv6 api key to add to dynv6.com"
_generate_new_key
_info "Please add this key to dynv6.com $(cat "$dynv6_keyfile.pub")"
_info "Hit Enter to contiue"
read -r _
#save the credentials to the account conf file.
else
dynv6_keyfile="$KEY"
fi
_saveaccountconf_mutable dynv6_keyfile "$dynv6_keyfile"
fi
}