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Merge pull request #2942 from gassan/dns-hetzner
Merge pull request #2942 from gassan/dns-hetzner
Added dnsapi/dns_hetzner.shpull/2950/head
neil
5 years ago
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1 changed files with 252 additions and 0 deletions
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#!/usr/bin/env sh |
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# |
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#HETZNER_Token="sdfsdfsdfljlbjkljlkjsdfoiwje" |
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# |
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HETZNER_Api="https://dns.hetzner.com/api/v1" |
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######## Public functions ##################### |
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# Usage: add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs" |
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# Used to add txt record |
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# Ref: https://dns.hetzner.com/api-docs/ |
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dns_hetzner_add() { |
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full_domain=$1 |
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txt_value=$2 |
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HETZNER_Token="${HETZNER_Token:-$(_readaccountconf_mutable HETZNER_Token)}" |
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if [ -z "$HETZNER_Token" ]; then |
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HETZNER_Token="" |
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_err "You didn't specify a Hetzner api token." |
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_err "You can get yours from here https://dns.hetzner.com/settings/api-token." |
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return 1 |
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fi |
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#save the api key and email to the account conf file. |
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_saveaccountconf_mutable HETZNER_Token "$HETZNER_Token" |
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_debug "First detect the root zone" |
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if ! _get_root "$full_domain"; then |
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_err "Invalid domain" |
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return 1 |
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fi |
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_debug _domain_id "$_domain_id" |
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_debug _sub_domain "$_sub_domain" |
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_debug _domain "$_domain" |
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_debug "Getting TXT records" |
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if ! _find_record "$_sub_domain" "$txt_value"; then |
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return 1 |
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fi |
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if [ -z "$_record_id" ]; then |
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_info "Adding record" |
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if _hetzner_rest POST "records" "{\"zone_id\":\"${HETZNER_Zone_ID}\",\"type\":\"TXT\",\"name\":\"$_sub_domain\",\"value\":\"$txt_value\",\"ttl\":120}"; then |
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if _contains "$response" "$txt_value"; then |
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_info "Record added, OK" |
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_sleep 2 |
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return 0 |
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fi |
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fi |
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_err "Add txt record error${_response_error}" |
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return 1 |
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else |
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_info "Found record id: $_record_id." |
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_info "Record found, do nothing." |
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return 0 |
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# we could modify a record, if the names for txt records for *.example.com and example.com would be not the same |
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#if _hetzner_rest PUT "records/${_record_id}" "{\"zone_id\":\"${HETZNER_Zone_ID}\",\"type\":\"TXT\",\"name\":\"$full_domain\",\"value\":\"$txt_value\",\"ttl\":120}"; then |
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# if _contains "$response" "$txt_value"; then |
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# _info "Modified, OK" |
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# return 0 |
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# fi |
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#fi |
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#_err "Add txt record error (modify)." |
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#return 1 |
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fi |
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} |
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# Usage: full_domain txt_value |
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# Used to remove the txt record after validation |
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dns_hetzner_rm() { |
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full_domain=$1 |
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txt_value=$2 |
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HETZNER_Token="${HETZNER_Token:-$(_readaccountconf_mutable HETZNER_Token)}" |
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_debug "First detect the root zone" |
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if ! _get_root "$full_domain"; then |
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_err "Invalid domain" |
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return 1 |
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fi |
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_debug _domain_id "$_domain_id" |
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_debug _sub_domain "$_sub_domain" |
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_debug _domain "$_domain" |
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_debug "Getting TXT records" |
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if ! _find_record "$_sub_domain" "$txt_value"; then |
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return 1 |
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fi |
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if [ -z "$_record_id" ]; then |
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_info "Remove not needed. Record not found." |
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else |
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if ! _hetzner_rest DELETE "records/$_record_id"; then |
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_err "Delete record error${_response_error}" |
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return 1 |
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fi |
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_sleep 2 |
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_info "Record deleted" |
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fi |
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} |
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#################### Private functions below ################################## |
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#returns |
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# _record_id=a8d58f22d6931bf830eaa0ec6464bf81 if found; or 1 if error |
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_find_record() { |
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unset _record_id |
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_record_name=$1 |
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_record_value=$2 |
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if [ -z "$_record_value" ]; then |
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_record_value='[^"]*' |
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fi |
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_debug "Getting all records" |
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_hetzner_rest GET "records?zone_id=${_domain_id}" |
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if _response_has_error; then |
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_err "Error${_response_error}" |
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return 1 |
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else |
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_record_id=$( |
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echo "$response" \ |
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| grep -o "{[^\{\}]*\"name\":\"$_record_name\"[^\}]*}" \ |
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| grep "\"value\":\"$_record_value\"" \ |
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| while read -r record; do |
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# test for type and |
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if [ -n "$(echo "$record" | _egrep_o '"type":"TXT"')" ]; then |
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echo "$record" | _egrep_o '"id":"[^"]*"' | cut -d : -f 2 | tr -d \" |
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break |
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fi |
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done |
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) |
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fi |
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} |
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#_acme-challenge.www.domain.com |
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#returns |
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# _sub_domain=_acme-challenge.www |
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# _domain=domain.com |
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# _domain_id=sdjkglgdfewsdfg |
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_get_root() { |
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domain=$1 |
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i=1 |
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p=1 |
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domain_without_acme=$(echo "$domain" | cut -d . -f 2-) |
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domain_param_name=$(echo "HETZNER_Zone_ID_for_${domain_without_acme}" | sed 's/[\.\-]/_/g') |
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_debug "Reading zone_id for '$domain_without_acme' from config..." |
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HETZNER_Zone_ID=$(_readdomainconf "$domain_param_name") |
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if [ "$HETZNER_Zone_ID" ]; then |
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_debug "Found, using: $HETZNER_Zone_ID" |
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if ! _hetzner_rest GET "zones/${HETZNER_Zone_ID}"; then |
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_debug "Zone with id '$HETZNER_Zone_ID' not exists." |
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_cleardomainconf "$domain_param_name" |
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unset HETZNER_Zone_ID |
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else |
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if _contains "$response" "\"id\":\"$HETZNER_Zone_ID\""; then |
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_domain=$(printf "%s\n" "$response" | _egrep_o '"name":"[^"]*"' | cut -d : -f 2 | tr -d \" | head -n 1) |
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if [ "$_domain" ]; then |
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_cut_length=$((${#domain} - ${#_domain} - 1)) |
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_sub_domain=$(printf "%s" "$domain" | cut -c "1-$_cut_length") |
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_domain_id="$HETZNER_Zone_ID" |
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return 0 |
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else |
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return 1 |
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fi |
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else |
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return 1 |
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fi |
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fi |
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fi |
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_debug "Trying to get zone id by domain name for '$domain_without_acme'." |
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while true; do |
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h=$(printf "%s" "$domain" | cut -d . -f $i-100) |
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if [ -z "$h" ]; then |
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#not valid |
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return 1 |
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fi |
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_debug h "$h" |
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_hetzner_rest GET "zones?name=$h" |
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if _contains "$response" "\"name\":\"$h\"" || _contains "$response" '"total_entries":1'; then |
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_domain_id=$(echo "$response" | _egrep_o "\[.\"id\":\"[^\"]*\"" | _head_n 1 | cut -d : -f 2 | tr -d \") |
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if [ "$_domain_id" ]; then |
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_sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p) |
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_domain=$h |
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HETZNER_Zone_ID=$_domain_id |
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_savedomainconf "$domain_param_name" "$HETZNER_Zone_ID" |
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return 0 |
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fi |
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return 1 |
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fi |
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p=$i |
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i=$(_math "$i" + 1) |
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done |
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return 1 |
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} |
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#returns |
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# _response_error |
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_response_has_error() { |
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unset _response_error |
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err_part="$(echo "$response" | _egrep_o '"error":{[^}]*}')" |
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if [ -n "$err_part" ]; then |
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err_code=$(echo "$err_part" | _egrep_o '"code":[0-9]+' | cut -d : -f 2) |
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err_message=$(echo "$err_part" | _egrep_o '"message":"[^"]+"' | cut -d : -f 2 | tr -d \") |
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if [ -n "$err_code" ] && [ -n "$err_message" ]; then |
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_response_error=" - message: ${err_message}, code: ${err_code}" |
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return 0 |
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fi |
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fi |
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return 1 |
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} |
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#returns |
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# response |
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_hetzner_rest() { |
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m=$1 |
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ep="$2" |
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data="$3" |
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_debug "$ep" |
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key_trimmed=$(echo "$HETZNER_Token" | tr -d \") |
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export _H1="Content-TType: application/json" |
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export _H2="Auth-API-Token: $key_trimmed" |
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if [ "$m" != "GET" ]; then |
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_debug data "$data" |
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response="$(_post "$data" "$HETZNER_Api/$ep" "" "$m")" |
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else |
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response="$(_get "$HETZNER_Api/$ep")" |
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fi |
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if [ "$?" != "0" ] || _response_has_error; then |
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_debug "Error$_response_error" |
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return 1 |
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fi |
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_debug2 response "$response" |
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return 0 |
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} |
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