dnsapi/dns_scaleway.sh

   1 #!/usr/bin/env sh
   2
   3 # Scaleway API
   4 # https://developers.scaleway.com/en/products/domain/dns/api/
   5 #
   6 # Requires Scaleway API token set in SCALEWAY_API_TOKEN
   7
   8 ########  Public functions #####################
   9
  10 SCALEWAY_API="https://api.scaleway.com/domain/v2beta1"
  11
  12 #Usage: add  _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
  13 dns_scaleway_add() {
  14   fulldomain=$1
  15   txtvalue=$2
  16
  17   if ! _scaleway_check_config; then
  18     return 1
  19   fi
  20
  21   _debug "First detect the root zone"
  22   if ! _get_root "$fulldomain"; then
  23     _err "invalid domain"
  24     return 1
  25   fi
  26
  27   _debug _sub_domain "$_sub_domain"
  28   _debug _domain "$_domain"
  29
  30   _info "Adding record"
  31   _scaleway_create_TXT_record "$_domain" "$_sub_domain" "$txtvalue"
  32   if _contains "$response" "records"; then
  33     return 0
  34   else
  35     _err error "$response"
  36     return 1
  37   fi
  38   _info "Record added."
  39
  40   return 0
  41 }
  42
  43 dns_scaleway_rm() {
  44   fulldomain=$1
  45   txtvalue=$2
  46
  47   if ! _scaleway_check_config; then
  48     return 1
  49   fi
  50
  51   _debug "First detect the root zone"
  52   if ! _get_root "$fulldomain"; then
  53     _err "invalid domain"
  54     return 1
  55   fi
  56
  57   _debug _sub_domain "$_sub_domain"
  58   _debug _domain "$_domain"
  59
  60   _info "Deleting record"
  61   _scaleway_delete_TXT_record "$_domain" "$_sub_domain" "$txtvalue"
  62   if _contains "$response" "records"; then
  63     return 0
  64   else
  65     _err error "$response"
  66     return 1
  67   fi
  68   _info "Record deleted."
  69
  70   return 0
  71 }
  72
  73 ####################  Private functions below ##################################
  74
  75 _scaleway_check_config() {
  76   SCALEWAY_API_TOKEN="${SCALEWAY_API_TOKEN:-$(_readaccountconf_mutable SCALEWAY_API_TOKEN)}"
  77   if [ -z "$SCALEWAY_API_TOKEN" ]; then
  78     _err "No API key specified for Scaleway API."
  79     _err "Create your key and export it as SCALEWAY_API_TOKEN"
  80     return 1
  81   fi
  82   if ! _scaleway_rest GET "dns-zones"; then
  83     _err "Invalid API key specified for Scaleway API."
  84     return 1
  85   fi
  86
  87   _saveaccountconf_mutable SCALEWAY_API_TOKEN "$SCALEWAY_API_TOKEN"
  88
  89   return 0
  90 }
  91
  92 #_acme-challenge.www.domain.com
  93 #returns
  94 # _sub_domain=_acme-challenge.www
  95 # _domain=domain.com
  96 _get_root() {
  97   domain=$1
  98   i=1
  99   p=1
 100   while true; do
 101     h=$(printf "%s" "$domain" | cut -d . -f $i-100)
 102     if [ -z "$h" ]; then
 103       #not valid
 104       return 1
 105     fi
 106
 107     _scaleway_rest GET "dns-zones/$h/records"
 108
 109     if ! _contains "$response" "subdomain not found" >/dev/null; then
 110       _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
 111       _domain="$h"
 112       return 0
 113     fi
 114     p=$i
 115     i=$(_math "$i" + 1)
 116   done
 117   _err "Unable to retrive DNS zone matching this domain"
 118   return 1
 119 }
 120
 121 # this function add a TXT record
 122 _scaleway_create_TXT_record() {
 123   txt_zone=$1
 124   txt_name=$2
 125   txt_value=$3
 126
 127   _scaleway_rest PATCH "dns-zones/$txt_zone/records" "{\"return_all_records\":false,\"changes\":[{\"add\":{\"records\":[{\"name\":\"$txt_name\",\"data\":\"$txt_value\",\"type\":\"TXT\",\"ttl\":60}]}}]}"
 128
 129   if _contains "$response" "records"; then
 130     return 0
 131   else
 132     _err "error1 $response"
 133     return 1
 134   fi
 135 }
 136
 137 # this function delete a TXT record based on name and content
 138 _scaleway_delete_TXT_record() {
 139   txt_zone=$1
 140   txt_name=$2
 141   txt_value=$3
 142
 143   _scaleway_rest PATCH "dns-zones/$txt_zone/records" "{\"return_all_records\":false,\"changes\":[{\"delete\":{\"id_fields\":{\"name\":\"$txt_name\",\"data\":\"$txt_value\",\"type\":\"TXT\"}}}]}"
 144
 145   if _contains "$response" "records"; then
 146     return 0
 147   else
 148     _err "error2 $response"
 149     return 1
 150   fi
 151 }
 152
 153 _scaleway_rest() {
 154   m=$1
 155   ep="$2"
 156   data="$3"
 157   _debug "$ep"
 158   _scaleway_url="$SCALEWAY_API/$ep"
 159   _debug2 _scaleway_url "$_scaleway_url"
 160   export _H1="x-auth-token: $SCALEWAY_API_TOKEN"
 161   export _H2="Accept: application/json"
 162   export _H3="Content-Type: application/json"
 163
 164   if [ "$data" ] || [ "$m" != "GET" ]; then
 165     _debug data "$data"
 166     response="$(_post "$data" "$_scaleway_url" "" "$m")"
 167   else
 168     response="$(_get "$_scaleway_url")"
 169   fi
 170   if [ "$?" != "0" ] || _contains "$response" "denied_authentication" || _contains "$response" "Method not allowed" || _contains "$response" "json parse error: unexpected EOF"; then
 171     _err "error $response"
 172     return 1
 173   fi
 174   _debug2 response "$response"
 175   return 0
 176 }