253 lines
		
	
	
		
			6.7 KiB
		
	
	
	
		
			Bash
		
	
	
			
		
		
	
	
			253 lines
		
	
	
		
			6.7 KiB
		
	
	
	
		
			Bash
		
	
	
| #!/usr/bin/env sh
 | |
| 
 | |
| #
 | |
| #HETZNER_Token="sdfsdfsdfljlbjkljlkjsdfoiwje"
 | |
| #
 | |
| 
 | |
| HETZNER_Api="https://dns.hetzner.com/api/v1"
 | |
| 
 | |
| ########  Public functions #####################
 | |
| 
 | |
| # Usage: add  _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
 | |
| # Used to add txt record
 | |
| # Ref: https://dns.hetzner.com/api-docs/
 | |
| dns_hetzner_add() {
 | |
|   full_domain=$1
 | |
|   txt_value=$2
 | |
| 
 | |
|   HETZNER_Token="${HETZNER_Token:-$(_readaccountconf_mutable HETZNER_Token)}"
 | |
| 
 | |
|   if [ -z "$HETZNER_Token" ]; then
 | |
|     HETZNER_Token=""
 | |
|     _err "You didn't specify a Hetzner api token."
 | |
|     _err "You can get yours from here https://dns.hetzner.com/settings/api-token."
 | |
|     return 1
 | |
|   fi
 | |
| 
 | |
|   #save the api key and email to the account conf file.
 | |
|   _saveaccountconf_mutable HETZNER_Token "$HETZNER_Token"
 | |
| 
 | |
|   _debug "First detect the root zone"
 | |
| 
 | |
|   if ! _get_root "$full_domain"; then
 | |
|     _err "Invalid domain"
 | |
|     return 1
 | |
|   fi
 | |
|   _debug _domain_id "$_domain_id"
 | |
|   _debug _sub_domain "$_sub_domain"
 | |
|   _debug _domain "$_domain"
 | |
| 
 | |
|   _debug "Getting TXT records"
 | |
|   if ! _find_record "$_sub_domain" "$txt_value"; then
 | |
|     return 1
 | |
|   fi
 | |
| 
 | |
|   if [ -z "$_record_id" ]; then
 | |
|     _info "Adding record"
 | |
|     if _hetzner_rest POST "records" "{\"zone_id\":\"${HETZNER_Zone_ID}\",\"type\":\"TXT\",\"name\":\"$_sub_domain\",\"value\":\"$txt_value\",\"ttl\":120}"; then
 | |
|       if _contains "$response" "$txt_value"; then
 | |
|         _info "Record added, OK"
 | |
|         _sleep 2
 | |
|         return 0
 | |
|       fi
 | |
|     fi
 | |
|     _err "Add txt record error${_response_error}"
 | |
|     return 1
 | |
|   else
 | |
|     _info "Found record id: $_record_id."
 | |
|     _info "Record found, do nothing."
 | |
|     return 0
 | |
|     # we could modify a record, if the names for txt records for *.example.com and example.com would be not the same
 | |
|     #if _hetzner_rest PUT "records/${_record_id}" "{\"zone_id\":\"${HETZNER_Zone_ID}\",\"type\":\"TXT\",\"name\":\"$full_domain\",\"value\":\"$txt_value\",\"ttl\":120}"; then
 | |
|     #  if _contains "$response" "$txt_value"; then
 | |
|     #    _info "Modified, OK"
 | |
|     #    return 0
 | |
|     #  fi
 | |
|     #fi
 | |
|     #_err "Add txt record error (modify)."
 | |
|     #return 1
 | |
|   fi
 | |
| }
 | |
| 
 | |
| # Usage: full_domain txt_value
 | |
| # Used to remove the txt record after validation
 | |
| dns_hetzner_rm() {
 | |
|   full_domain=$1
 | |
|   txt_value=$2
 | |
| 
 | |
|   HETZNER_Token="${HETZNER_Token:-$(_readaccountconf_mutable HETZNER_Token)}"
 | |
| 
 | |
|   _debug "First detect the root zone"
 | |
|   if ! _get_root "$full_domain"; then
 | |
|     _err "Invalid domain"
 | |
|     return 1
 | |
|   fi
 | |
|   _debug _domain_id "$_domain_id"
 | |
|   _debug _sub_domain "$_sub_domain"
 | |
|   _debug _domain "$_domain"
 | |
| 
 | |
|   _debug "Getting TXT records"
 | |
|   if ! _find_record "$_sub_domain" "$txt_value"; then
 | |
|     return 1
 | |
|   fi
 | |
| 
 | |
|   if [ -z "$_record_id" ]; then
 | |
|     _info "Remove not needed. Record not found."
 | |
|   else
 | |
|     if ! _hetzner_rest DELETE "records/$_record_id"; then
 | |
|       _err "Delete record error${_response_error}"
 | |
|       return 1
 | |
|     fi
 | |
|     _sleep 2
 | |
|     _info "Record deleted"
 | |
|   fi
 | |
| }
 | |
| 
 | |
| ####################  Private functions below ##################################
 | |
| #returns
 | |
| # _record_id=a8d58f22d6931bf830eaa0ec6464bf81  if found; or 1 if error
 | |
| _find_record() {
 | |
|   unset _record_id
 | |
|   _record_name=$1
 | |
|   _record_value=$2
 | |
| 
 | |
|   if [ -z "$_record_value" ]; then
 | |
|     _record_value='[^"]*'
 | |
|   fi
 | |
| 
 | |
|   _debug "Getting all records"
 | |
|   _hetzner_rest GET "records?zone_id=${_domain_id}"
 | |
| 
 | |
|   if _response_has_error; then
 | |
|     _err "Error${_response_error}"
 | |
|     return 1
 | |
|   else
 | |
|     _record_id=$(
 | |
|       echo "$response" |
 | |
|         grep -o "{[^\{\}]*\"name\":\"$_record_name\"[^\}]*}" |
 | |
|         grep "\"value\":\"$_record_value\"" |
 | |
|         while read -r record; do
 | |
|           # test for type and
 | |
|           if [ -n "$(echo "$record" | _egrep_o '"type":"TXT"')" ]; then
 | |
|             echo "$record" | _egrep_o '"id":"[^"]*"' | cut -d : -f 2 | tr -d \"
 | |
|             break
 | |
|           fi
 | |
|         done
 | |
|     )
 | |
|   fi
 | |
| }
 | |
| 
 | |
| #_acme-challenge.www.domain.com
 | |
| #returns
 | |
| # _sub_domain=_acme-challenge.www
 | |
| # _domain=domain.com
 | |
| # _domain_id=sdjkglgdfewsdfg
 | |
| _get_root() {
 | |
|   domain=$1
 | |
|   i=1
 | |
|   p=1
 | |
| 
 | |
|   domain_without_acme=$(echo "$domain" | cut -d . -f 2-)
 | |
|   domain_param_name=$(echo "HETZNER_Zone_ID_for_${domain_without_acme}" | sed 's/[\.\-]/_/g')
 | |
| 
 | |
|   _debug "Reading zone_id for '$domain_without_acme' from config..."
 | |
|   HETZNER_Zone_ID=$(_readdomainconf "$domain_param_name")
 | |
|   if [ "$HETZNER_Zone_ID" ]; then
 | |
|     _debug "Found, using: $HETZNER_Zone_ID"
 | |
|     if ! _hetzner_rest GET "zones/${HETZNER_Zone_ID}"; then
 | |
|       _debug "Zone with id '$HETZNER_Zone_ID' does not exist."
 | |
|       _cleardomainconf "$domain_param_name"
 | |
|       unset HETZNER_Zone_ID
 | |
|     else
 | |
|       if _contains "$response" "\"id\":\"$HETZNER_Zone_ID\""; then
 | |
|         _domain=$(printf "%s\n" "$response" | _egrep_o '"name":"[^"]*"' | cut -d : -f 2 | tr -d \" | head -n 1)
 | |
|         if [ "$_domain" ]; then
 | |
|           _cut_length=$((${#domain} - ${#_domain} - 1))
 | |
|           _sub_domain=$(printf "%s" "$domain" | cut -c "1-$_cut_length")
 | |
|           _domain_id="$HETZNER_Zone_ID"
 | |
|           return 0
 | |
|         else
 | |
|           return 1
 | |
|         fi
 | |
|       else
 | |
|         return 1
 | |
|       fi
 | |
|     fi
 | |
|   fi
 | |
| 
 | |
|   _debug "Trying to get zone id by domain name for '$domain_without_acme'."
 | |
|   while true; do
 | |
|     h=$(printf "%s" "$domain" | cut -d . -f $i-100)
 | |
|     if [ -z "$h" ]; then
 | |
|       #not valid
 | |
|       return 1
 | |
|     fi
 | |
|     _debug h "$h"
 | |
| 
 | |
|     _hetzner_rest GET "zones?name=$h"
 | |
| 
 | |
|     if _contains "$response" "\"name\":\"$h\"" || _contains "$response" '"total_entries":1'; then
 | |
|       _domain_id=$(echo "$response" | _egrep_o "\[.\"id\":\"[^\"]*\"" | _head_n 1 | cut -d : -f 2 | tr -d \")
 | |
|       if [ "$_domain_id" ]; then
 | |
|         _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
 | |
|         _domain=$h
 | |
|         HETZNER_Zone_ID=$_domain_id
 | |
|         _savedomainconf "$domain_param_name" "$HETZNER_Zone_ID"
 | |
|         return 0
 | |
|       fi
 | |
|       return 1
 | |
|     fi
 | |
|     p=$i
 | |
|     i=$(_math "$i" + 1)
 | |
|   done
 | |
|   return 1
 | |
| }
 | |
| 
 | |
| #returns
 | |
| # _response_error
 | |
| _response_has_error() {
 | |
|   unset _response_error
 | |
| 
 | |
|   err_part="$(echo "$response" | _egrep_o '"error":{[^}]*}')"
 | |
| 
 | |
|   if [ -n "$err_part" ]; then
 | |
|     err_code=$(echo "$err_part" | _egrep_o '"code":[0-9]+' | cut -d : -f 2)
 | |
|     err_message=$(echo "$err_part" | _egrep_o '"message":"[^"]+"' | cut -d : -f 2 | tr -d \")
 | |
| 
 | |
|     if [ -n "$err_code" ] && [ -n "$err_message" ]; then
 | |
|       _response_error=" - message: ${err_message}, code: ${err_code}"
 | |
|       return 0
 | |
|     fi
 | |
|   fi
 | |
| 
 | |
|   return 1
 | |
| }
 | |
| 
 | |
| #returns
 | |
| # response
 | |
| _hetzner_rest() {
 | |
|   m=$1
 | |
|   ep="$2"
 | |
|   data="$3"
 | |
|   _debug "$ep"
 | |
| 
 | |
|   key_trimmed=$(echo "$HETZNER_Token" | tr -d \")
 | |
| 
 | |
|   export _H1="Content-TType: application/json"
 | |
|   export _H2="Auth-API-Token: $key_trimmed"
 | |
| 
 | |
|   if [ "$m" != "GET" ]; then
 | |
|     _debug data "$data"
 | |
|     response="$(_post "$data" "$HETZNER_Api/$ep" "" "$m")"
 | |
|   else
 | |
|     response="$(_get "$HETZNER_Api/$ep")"
 | |
|   fi
 | |
| 
 | |
|   if [ "$?" != "0" ] || _response_has_error; then
 | |
|     _debug "Error$_response_error"
 | |
|     return 1
 | |
|   fi
 | |
|   _debug2 response "$response"
 | |
|   return 0
 | |
| }
 |