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" "$response" | _egrep_o "\"id\":\s*[0-9]+" | cut -d : -f 2 | tr -d " " | _head_n 1)
  40     _debug _resource_id "$_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 "$response" | _egrep_o "{.*\"name\":\s*\"$_sub_domain\".*}")"
  78     if [ "$resource" ]; then
  79       _resource_id=$(printf "%s\n" "$resource" | _egrep_o "\"id\":\s*[0-9]+" | _head_n 1 | cut -d : -f 2 | tr -d \ )
  80       if [ "$_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: $_error_response"
  89             return 1
  90           fi
  91
  92           _info "Domain resource successfully deleted."
  93           return 0
  94         fi
  95       fi
  96
  97       return 1
  98     fi
  99
 100     return 0
 101   fi
 102
 103   return 1
 104 }
 105
 106 ####################  Private functions below ##################################
 107
 108 _Linode_API() {
 109   if [ -z "$LINODE_V4_API_KEY" ]; then
 110     LINODE_V4_API_KEY=""
 111
 112     _err "You didn't specify the Linode v4 API key yet."
 113     _err "Please create your key and try again."
 114
 115     return 1
 116   fi
 117
 118   _saveaccountconf LINODE_V4_API_KEY "$LINODE_V4_API_KEY"
 119 }
 120
 121 ####################  Private functions below ##################################
 122 #_acme-challenge.www.domain.com
 123 #returns
 124 # _sub_domain=_acme-challenge.www
 125 # _domain=domain.com
 126 # _domain_id=12345
 127 _get_root() {
 128   domain=$1
 129   i=2
 130   p=1
 131
 132   if _rest GET; then
 133     response="$(echo "$response" | tr -d "\n" | tr '{' "|" | sed 's/|/&{/g' | tr "|" "\n")"
 134     while true; do
 135       h=$(printf "%s" "$domain" | cut -d . -f $i-100)
 136       _debug h "$h"
 137       if [ -z "$h" ]; then
 138         #not valid
 139         return 1
 140       fi
 141
 142       hostedzone="$(echo "$response" | _egrep_o "{.*\"domain\":\s*\"$h\".*}")"
 143       if [ "$hostedzone" ]; then
 144         _domain_id=$(printf "%s\n" "$hostedzone" | _egrep_o "\"id\":\s*[0-9]+" | _head_n 1 | cut -d : -f 2 | tr -d \ )
 145         if [ "$_domain_id" ]; then
 146           _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
 147           _domain=$h
 148           return 0
 149         fi
 150         return 1
 151       fi
 152       p=$i
 153       i=$(_math "$i" + 1)
 154     done
 155   fi
 156   return 1
 157 }
 158
 159 #method method action data
 160 _rest() {
 161   mtd="$1"
 162   ep="$2"
 163   data="$3"
 164
 165   _debug mtd "$mtd"
 166   _debug ep "$ep"
 167
 168   export _H1="Accept: application/json"
 169   export _H2="Content-Type: application/json"
 170   export _H3="Authorization: Bearer $LINODE_V4_API_KEY"
 171
 172   if [ "$mtd" != "GET" ]; then
 173     # both POST and DELETE.
 174     _debug data "$data"
 175     response="$(_post "$data" "$LINODE_V4_API_URL$ep" "" "$mtd")"
 176   else
 177     response="$(_get "$LINODE_V4_API_URL$ep$data")"
 178   fi
 179
 180   if [ "$?" != "0" ]; then
 181     _err "error $ep"
 182     return 1
 183   fi
 184   _debug2 response "$response"
 185   return 0
 186 }