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 $dynv6_keyfile"
  16   _get_domain "$fulldomain"
  17   _your_hosts="$(ssh -i "$dynv6_keyfile" api@dynv6.com hosts)"
  18   if ! _contains "$_your_hosts" "$_host"; then
  19     _debug "The host is $_host and the record $_record"
  20     _debug "Dynv6 returned $_your_hosts"
  21     _err "The host $_host does not exist on your dynv6 account"
  22     return 1
  23   fi
  24   _debug "found host on your account"
  25   returnval="$(ssh -i "$dynv6_keyfile" api@dynv6.com hosts \""$_host"\" records set \""$_record"\" txt data \""$txtvalue"\")"
  26   _debug "Dynv6 returend this after record was added: $returnval"
  27   if _contains "$returnval" "created"; then
  28     return 0
  29   elif _contains "$returnval" "updated"; then
  30     return 0
  31   else
  32     _err "Something went wrong! it does not seem like the record was added succesfully"
  33     return 1
  34   fi
  35   return 1
  36 }
  37 #Usage: fulldomain txtvalue
  38 #Remove the txt record after validation.
  39 dns_dynv6_rm() {
  40   fulldomain=$1
  41   txtvalue=$2
  42   _info "Using dynv6 api"
  43   _debug fulldomain "$fulldomain"
  44   _debug txtvalue "$txtvalue"
  45   _get_keyfile
  46   _info "using keyfile $dynv6_keyfile"
  47   _get_domain "$fulldomain"
  48   _your_hosts="$(ssh -i "$dynv6_keyfile" api@dynv6.com hosts)"
  49   if ! _contains "$_your_hosts" "$_host"; then
  50     _debug "The host is $_host and the record $_record"
  51     _debug "Dynv6 returned $_your_hosts"
  52     _err "The host $_host does not exist on your dynv6 account"
  53     return 1
  54   fi
  55   _debug "found host on your account"
  56   _info "$(ssh -i "$dynv6_keyfile" api@dynv6.com hosts "\"$_host\"" records del "\"$_record\"" txt)"
  57   return 0
  58
  59 }
  60 #################### Private functions below ##################################
  61 #Usage: No Input required
  62 #returns
  63 #dynv6_keyfile the path to the new keyfile that has been generated
  64 _generate_new_key() {
  65   dynv6_keyfile="$(eval echo ~"$USER")/.ssh/dynv6"
  66   _info "Path to key file used: $dynv6_keyfile"
  67   if [ ! -f "$dynv6_keyfile" ] && [ ! -f "$dynv6_keyfile.pub" ]; then
  68     _debug "generating key in $dynv6_keyfile and $dynv6_keyfile.pub"
  69     ssh-keygen -f "$dynv6_keyfile" -t ssh-ed25519 -N ''
  70   else
  71     _err "There is already a file in $dynv6_keyfile or $dynv6_keyfile.pub"
  72     return 1
  73   fi
  74 }
  75 #Usage: _acme-challenge.www.example.dynv6.net
  76 #returns
  77 #_host= example.dynv6.net
  78 #_record=_acme-challenge.www
  79 #aborts if not a valid domain
  80 _get_domain() {
  81   _full_domain="$1"
  82   _debug "getting domain for $_full_domain"
  83   if ! _contains "$_full_domain" 'dynv6.net' && ! _contains "$_full_domain" 'dns.army' && ! _contains "$_full_domain" 'dns.navy'; then
  84     _err "The hosts does not seem to be a dynv6 host"
  85     return 1
  86   fi
  87   _record="${_full_domain%.*}"
  88   _record="${_record%.*}"
  89   _record="${_record%.*}"
  90   _debug "The record we are ging to use is $_record"
  91   _host="$_full_domain"
  92   while [ "$(echo "$_host" | grep -o '\.' | wc -l)" != "2" ]; do
  93     _host="${_host#*.}"
  94   done
  95   _debug "And the host is $_host"
  96   return 0
  97
  98 }
  99
 100 # Usage: No input required
 101 #returns
 102 #dynv6_keyfile path to the key that will be used
 103 _get_keyfile() {
 104   _debug "get keyfile method called"
 105   dynv6_keyfile="${dynv6_keyfile:-$(_readaccountconf_mutable dynv6_keyfile)}"
 106   _debug Your key is "$dynv6_keyfile"
 107   if [ -z "$dynv6_keyfile" ]; then
 108     if [ -z "$KEY" ]; then
 109       _err "You did not specify a key to use with dynv6"
 110       _info "Creating new dynv6 api key to add to dynv6.com"
 111       _generate_new_key
 112       _info "Please add this key to dynv6.com $(cat "$dynv6_keyfile.pub")"
 113       _info "Hit Enter to contiue"
 114       read -r _
 115       #save the credentials to the account conf file.
 116     else
 117       dynv6_keyfile="$KEY"
 118     fi
 119     _saveaccountconf_mutable dynv6_keyfile "$dynv6_keyfile"
 120   fi
 121 }