dnsapi/dns_dynv6.sh

   1 #!/usr/bin/env sh
   2 #Author StefanAbl
   3 #Usage specify a private keyfile to use with dynv6 'export KEY="path/to/keyfile"'
   4 #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
   5 ########  Public functions #####################
   6 # Please Read this guide first: https://github.com/Neilpang/acme.sh/wiki/DNS-API-Dev-Guide
   7 #Usage: dns_myapi_add  _acme-challenge.www.domain.com  "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
   8 dns_dynv6_add() {
   9   fulldomain=$1
  10   txtvalue=$2
  11   _info "Using dynv6 api"
  12   _debug fulldomain "$fulldomain"
  13   _debug txtvalue "$txtvalue"
  14   _get_keyfile
  15   _info "using keyfile $dynv6_keyfile"
  16   _your_hosts="$(ssh -i "$dynv6_keyfile" api@dynv6.com hosts)"
  17   if ! _get_domain "$fulldomain" "$_your_hosts"; then
  18     _err "Host not found on your account"
  19     return 1
  20   fi
  21   _debug "found host on your account"
  22   returnval="$(ssh -i "$dynv6_keyfile" api@dynv6.com hosts \""$_host"\" records set \""$_record"\" txt data \""$txtvalue"\")"
  23   _debug "Dynv6 returend this after record was added: $returnval"
  24   if _contains "$returnval" "created"; then
  25     return 0
  26   elif _contains "$returnval" "updated"; then
  27     return 0
  28   else
  29     _err "Something went wrong! it does not seem like the record was added succesfully"
  30     return 1
  31   fi
  32   return 1
  33 }
  34 #Usage: fulldomain txtvalue
  35 #Remove the txt record after validation.
  36 dns_dynv6_rm() {
  37   fulldomain=$1
  38   txtvalue=$2
  39   _info "Using dynv6 api"
  40   _debug fulldomain "$fulldomain"
  41   _debug txtvalue "$txtvalue"
  42   _get_keyfile
  43   _info "using keyfile $dynv6_keyfile"
  44   _your_hosts="$(ssh -i "$dynv6_keyfile" api@dynv6.com hosts)"
  45   if ! _get_domain "$fulldomain" "$_your_hosts"; then
  46     _err "Host not found on your account"
  47     return 1
  48   fi
  49   _debug "found host on your account"
  50   _info "$(ssh -i "$dynv6_keyfile" api@dynv6.com hosts "\"$_host\"" records del "\"$_record\"" txt)"
  51   return 0
  52 }
  53 #################### Private functions below ##################################
  54 #Usage: No Input required
  55 #returns
  56 #dynv6_keyfile the path to the new keyfile that has been generated
  57 _generate_new_key() {
  58   dynv6_keyfile="$(eval echo ~"$USER")/.ssh/dynv6"
  59   _info "Path to key file used: $dynv6_keyfile"
  60   if [ ! -f "$dynv6_keyfile" ] && [ ! -f "$dynv6_keyfile.pub" ]; then
  61     _debug "generating key in $dynv6_keyfile and $dynv6_keyfile.pub"
  62     ssh-keygen -f "$dynv6_keyfile" -t ssh-ed25519 -N ''
  63   else
  64     _err "There is already a file in $dynv6_keyfile or $dynv6_keyfile.pub"
  65     return 1
  66   fi
  67 }
  68
  69 #Usage: _acme-challenge.www.example.dynv6.net "$_your_hosts"
  70 #where _your_hosts is the output of ssh -i ~/.ssh/dynv6.pub api@dynv6.com hosts
  71 #returns
  72 #_host= example.dynv6.net
  73 #_record=_acme-challenge.www
  74 #aborts if not a valid domain
  75 _get_domain() {
  76   #_your_hosts="$(ssh -i ~/.ssh/dynv6.pub api@dynv6.com hosts)"
  77   _full_domain="$1"
  78   _your_hosts="$2"
  79
  80   _your_hosts="$(echo "$_your_hosts" | awk '/\./ {print $1}')"
  81   for l in $_your_hosts; do
  82     #echo "host: $l"
  83     if test "${_full_domain#*$l}" != "$_full_domain"; then
  84       _record="${_full_domain%.$l}"
  85       _host=$l
  86       _debug "The host is $_host and the record $_record"
  87       return 0
  88     fi
  89   done
  90   _err "Either their is no such host on your dnyv6 account or it cannot be accessed with this key"
  91   return 1
  92 }
  93
  94 # Usage: No input required
  95 #returns
  96 #dynv6_keyfile path to the key that will be used
  97 _get_keyfile() {
  98   _debug "get keyfile method called"
  99   dynv6_keyfile="${dynv6_keyfile:-$(_readaccountconf_mutable dynv6_keyfile)}"
 100   _debug "Your key is $dynv6_keyfile"
 101   if [ -z "$dynv6_keyfile" ]; then
 102     if [ -z "$KEY" ]; then
 103       _err "You did not specify a key to use with dynv6"
 104       _info "Creating new dynv6 api key to add to dynv6.com"
 105       _generate_new_key
 106       _info "Please add this key to dynv6.com $(cat "$dynv6_keyfile.pub")"
 107       _info "Hit Enter to contiue"
 108       read -r _
 109       #save the credentials to the account conf file.
 110     else
 111       dynv6_keyfile="$KEY"
 112     fi
 113     _saveaccountconf_mutable dynv6_keyfile "$dynv6_keyfile"
 114   fi
 115 }