dnsapi/dns_linode_v4.sh

   1 #!/usr/bin/env sh
   2
   3 #Original Author: Philipp Grosswiler <philipp.grosswiler@swiss-design.net>
   4 #v4 Update Author: Aaron W. Swenson <aaron@grandmasfridge.org>
   5
   6 LINODE_V4_API_URL="https://api.linode.com/v4/domains"
   7
   8 ########  Public functions #####################
   9
  10 #Usage: dns_linode_add   _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
  11 dns_linode_v4_add() {
  12   fulldomain="${1}"
  13   txtvalue="${2}"
  14
  15   if ! _Linode_API; then
  16     return 1
  17   fi
  18
  19   _info "Using Linode"
  20   _debug "Calling: dns_linode_add() '${fulldomain}' '${txtvalue}'"
  21
  22   _debug "First detect the root zone"
  23   if ! _get_root "$fulldomain"; then
  24     _err "Domain does not exist."
  25     return 1
  26   fi
  27   _debug _domain_id "$_domain_id"
  28   _debug _sub_domain "$_sub_domain"
  29   _debug _domain "$_domain"
  30
  31   _payload="{
  32               \"type\": \"TXT\",
  33               \"name\": \"$_sub_domain\",
  34               \"target\": \"$txtvalue\",
  35               \"ttl_sec\": 300
  36             }"
  37
  38   if _rest POST "/$_domain_id/records" "$_payload" && [ -n "$response" ]; then
  39     _resource_id=$(printf "%s\n" "$response" | _egrep_o "\"id\": *[0-9]+" | cut -d : -f 2 | tr -d " " | _head_n 1)
  40     _debug _resource_id "$_resource_id"
  41
  42     if [ -z "$_resource_id" ]; then
  43       _err "Error adding the domain resource."
  44       return 1
  45     fi
  46
  47     _info "Domain resource successfully added."
  48     return 0
  49   fi
  50
  51   return 1
  52 }
  53
  54 #Usage: dns_linode_rm   _acme-challenge.www.domain.com
  55 dns_linode_v4_rm() {
  56   fulldomain="${1}"
  57
  58   if ! _Linode_API; then
  59     return 1
  60   fi
  61
  62   _info "Using Linode"
  63   _debug "Calling: dns_linode_rm() '${fulldomain}'"
  64
  65   _debug "First detect the root zone"
  66   if ! _get_root "$fulldomain"; then
  67     _err "Domain does not exist."
  68     return 1
  69   fi
  70   _debug _domain_id "$_domain_id"
  71   _debug _sub_domain "$_sub_domain"
  72   _debug _domain "$_domain"
  73
  74   if _rest GET "/$_domain_id/records" && [ -n "$response" ]; then
  75     response="$(echo "$response" | tr -d "\n" | tr '{' "|" | sed 's/|/&{/g' | tr "|" "\n")"
  76
  77     resource="$(echo "$response" | _egrep_o "\{.*\"name\": *\"$_sub_domain\".*}")"
  78     if [ "$resource" ]; then
  79       _resource_id=$(printf "%s\n" "$resource" | _egrep_o "\"id\": *[0-9]+" | _head_n 1 | cut -d : -f 2 | tr -d \ )
  80       if [ "$_resource_id" ]; then
  81         _debug _resource_id "$_resource_id"
  82
  83         if _rest DELETE "/$_domain_id/records/$_resource_id" && [ -n "$response" ]; then
  84           # On 200/OK, empty set is returned. Check for error, if any.
  85           _error_response=$(printf "%s\n" "$response" | _egrep_o "\"errors\"" | cut -d : -f 2 | tr -d " " | _head_n 1)
  86
  87           if [ -n "$_error_response" ]; then
  88             _err "Error deleting the domain resource: $_error_response"
  89             return 1
  90           fi
  91
  92           _info "Domain resource successfully deleted."
  93           return 0
  94         fi
  95       fi
  96
  97       return 1
  98     fi
  99
 100     return 0
 101   fi
 102
 103   return 1
 104 }
 105
 106 ####################  Private functions below ##################################
 107
 108 _Linode_API() {
 109   LINODE_V4_API_KEY="${LINODE_V4_API_KEY:-$(_readaccountconf_mutable LINODE_V4_API_KEY)}"
 110   if [ -z "$LINODE_V4_API_KEY" ]; then
 111     LINODE_V4_API_KEY=""
 112
 113     _err "You didn't specify the Linode v4 API key yet."
 114     _err "Please create your key and try again."
 115
 116     return 1
 117   fi
 118
 119   _saveaccountconf_mutable LINODE_V4_API_KEY "$LINODE_V4_API_KEY"
 120 }
 121
 122 ####################  Private functions below ##################################
 123 #_acme-challenge.www.domain.com
 124 #returns
 125 # _sub_domain=_acme-challenge.www
 126 # _domain=domain.com
 127 # _domain_id=12345
 128 _get_root() {
 129   domain=$1
 130   i=2
 131   p=1
 132
 133   if _rest GET; then
 134     response="$(echo "$response" | tr -d "\n" | tr '{' "|" | sed 's/|/&{/g' | tr "|" "\n")"
 135     while true; do
 136       h=$(printf "%s" "$domain" | cut -d . -f $i-100)
 137       _debug h "$h"
 138       if [ -z "$h" ]; then
 139         #not valid
 140         return 1
 141       fi
 142
 143       hostedzone="$(echo "$response" | _egrep_o "\{.*\"domain\": *\"$h\".*}")"
 144       if [ "$hostedzone" ]; then
 145         _domain_id=$(printf "%s\n" "$hostedzone" | _egrep_o "\"id\": *[0-9]+" | _head_n 1 | cut -d : -f 2 | tr -d \ )
 146         if [ "$_domain_id" ]; then
 147           _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
 148           _domain=$h
 149           return 0
 150         fi
 151         return 1
 152       fi
 153       p=$i
 154       i=$(_math "$i" + 1)
 155     done
 156   fi
 157   return 1
 158 }
 159
 160 #method method action data
 161 _rest() {
 162   mtd="$1"
 163   ep="$2"
 164   data="$3"
 165
 166   _debug mtd "$mtd"
 167   _debug ep "$ep"
 168
 169   export _H1="Accept: application/json"
 170   export _H2="Content-Type: application/json"
 171   export _H3="Authorization: Bearer $LINODE_V4_API_KEY"
 172
 173   if [ "$mtd" != "GET" ]; then
 174     # both POST and DELETE.
 175     _debug data "$data"
 176     response="$(_post "$data" "$LINODE_V4_API_URL$ep" "" "$mtd")"
 177   else
 178     response="$(_get "$LINODE_V4_API_URL$ep$data")"
 179   fi
 180
 181   if [ "$?" != "0" ]; then
 182     _err "error $ep"
 183     return 1
 184   fi
 185   _debug2 response "$response"
 186   return 0
 187 }