dnsapi/dns_vultr.sh

   1 #!/usr/bin/env sh
   2
   3 #
   4 #VULTR_API_KEY=000011112222333344445555666677778888
   5
   6 VULTR_Api="https://api.vultr.com/v1"
   7
   8 ########  Public functions #####################
   9
  10 #Usage: add  _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
  11 dns_vultr_add() {
  12   fulldomain=$1
  13   txtvalue=$2
  14   _debug fulldomain "$fulldomain"
  15   _debug txtvalue "$txtvalue"
  16
  17   VULTR_API_KEY="${VULTR_API_KEY:-$(_readaccountconf_mutable VULTR_API_KEY)}"
  18   if test -z "$VULTR_API_KEY"; then
  19     VULTR_API_KEY=''
  20     _err 'VULTR_API_KEY was not exported'
  21     return 1
  22   fi
  23
  24   _saveaccountconf_mutable VULTR_API_KEY "$VULTR_API_KEY"
  25
  26   _debug 'First detect the root zone'
  27   if ! _get_root "$fulldomain"; then
  28     return 1
  29   fi
  30   _debug _sub_domain "$_sub_domain"
  31   _debug _domain "$_domain"
  32
  33   _debug 'Getting txt records'
  34   _vultr_rest GET "dns/records?domain=$_domain"
  35
  36   if printf "%s\n" "$response" | grep -- "\"type\":\"TXT\",\"name\":\"$fulldomain\"" >/dev/null; then
  37     _err 'Error'
  38     return 1
  39   fi
  40
  41   if ! _vultr_rest POST 'dns/create_record' "domain=$_domain&name=$_sub_domain&data=\"$txtvalue\"&type=TXT"; then
  42     _err "$response"
  43     return 1
  44   fi
  45
  46   _debug2 _response "$response"
  47   return 0
  48 }
  49
  50 #fulldomain txtvalue
  51 dns_vultr_rm() {
  52   fulldomain=$1
  53   txtvalue=$2
  54   _debug fulldomain "$fulldomain"
  55   _debug txtvalue "$txtvalue"
  56
  57   VULTR_API_KEY="${VULTR_API_KEY:-$(_readaccountconf_mutable VULTR_API_KEY)}"
  58   if test -z "$VULTR_API_KEY"; then
  59     VULTR_API_KEY=""
  60     _err 'VULTR_API_KEY was not exported'
  61     return 1
  62   fi
  63
  64   _saveaccountconf_mutable VULTR_API_KEY "$VULTR_API_KEY"
  65
  66   _debug 'First detect the root zone'
  67   if ! _get_root "$fulldomain"; then
  68     return 1
  69   fi
  70   _debug _sub_domain "$_sub_domain"
  71   _debug _domain "$_domain"
  72
  73   _debug 'Getting txt records'
  74   _vultr_rest GET "dns/records?domain=$_domain"
  75
  76   if printf "%s\n" "$response" | grep -- "\"type\":\"TXT\",\"name\":\"$fulldomain\"" >/dev/null; then
  77     _err 'Error'
  78     return 1
  79   fi
  80
  81   _record_id="$(echo "$response" | tr '{}' '\n' | grep '"TXT"' | grep -- "$txtvalue" | tr ',' '\n' | grep -i 'RECORDID' | cut -d : -f 2)"
  82   _debug _record_id "$_record_id"
  83   if [ "$_record_id" ]; then
  84     _info "Successfully retrieved the record id for ACME challenge."
  85   else
  86     _info "Empty record id, it seems no such record."
  87     return 0
  88   fi
  89
  90   if ! _vultr_rest POST 'dns/delete_record' "domain=$_domain&RECORDID=$_record_id"; then
  91     _err "$response"
  92     return 1
  93   fi
  94
  95   _debug2 _response "$response"
  96   return 0
  97 }
  98
  99 ####################  Private functions below ##################################
 100 #_acme-challenge.www.domain.com
 101 #returns
 102 # _sub_domain=_acme-challenge.www
 103 # _domain=domain.com
 104 # _domain_id=sdjkglgdfewsdfg
 105 _get_root() {
 106   domain=$1
 107   i=1
 108   while true; do
 109     _domain=$(printf "%s" "$domain" | cut -d . -f $i-100)
 110     _debug h "$_domain"
 111     if [ -z "$_domain" ]; then
 112       return 1
 113     fi
 114
 115     if ! _vultr_rest GET "dns/list"; then
 116       return 1
 117     fi
 118
 119     if printf "%s\n" "$response" | grep '^\[.*\]' >/dev/null; then
 120       if _contains "$response" "\"domain\":\"$_domain\""; then
 121         _sub_domain="$(echo "$fulldomain" | sed "s/\\.$_domain\$//")"
 122         return 0
 123       else
 124         _debug "Go to next level of $_domain"
 125       fi
 126     else
 127       _err "$response"
 128       return 1
 129     fi
 130     i=$(_math "$i" + 1)
 131   done
 132
 133   return 1
 134 }
 135
 136 _vultr_rest() {
 137   m=$1
 138   ep="$2"
 139   data="$3"
 140   _debug "$ep"
 141
 142   api_key_trimmed=$(echo $VULTR_API_KEY | tr -d '"')
 143
 144   export _H1="Api-Key: $api_key_trimmed"
 145   export _H2='Content-Type: application/x-www-form-urlencoded'
 146
 147   if [ "$m" != "GET" ]; then
 148     _debug data "$data"
 149     response="$(_post "$data" "$VULTR_Api/$ep" "" "$m")"
 150   else
 151     response="$(_get "$VULTR_Api/$ep")"
 152   fi
 153
 154   if [ "$?" != "0" ]; then
 155     _err "Error $ep"
 156     return 1
 157   fi
 158
 159   _debug2 response "$response"
 160   return 0
 161 }