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							256 lines
						
					
					
						
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				| #!/usr/bin/env sh | |
| # shellcheck disable=SC2034 | |
| dns_hetzner_info='Hetzner.com | |
| Site: Hetzner.com | |
| Docs: github.com/acmesh-official/acme.sh/wiki/dnsapi#dns_hetzner | |
| Options: | |
|  HETZNER_Token API Token | |
| Issues: github.com/acmesh-official/acme.sh/issues/2943 | |
| ' | |
| 
 | |
| 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 | |
| }
 |