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366 lines
10 KiB
366 lines
10 KiB
#!/usr/bin/env sh
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# shellcheck disable=SC2034
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dns_yc_info='Yandex Cloud DNS
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Site: Cloud.Yandex.com
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Docs: github.com/acmesh-official/acme.sh/wiki/dnsapi2#dns_yc
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Options:
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YC_Zone_ID DNS Zone ID
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YC_Folder_ID YC Folder ID
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YC_SA_ID Service Account ID
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YC_SA_Key_ID Service Account IAM Key ID
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YC_SA_Key_File_Path Private key file path. Optional.
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YC_SA_Key_File_PEM_b64 Base64 content of private key file. Use instead of Path to private key file. Optional.
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Issues: github.com/acmesh-official/acme.sh/issues/4210
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'
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YC_Api="https://dns.api.cloud.yandex.net/dns/v1"
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######## Public functions #####################
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#Usage: add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
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dns_yc_add() {
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fulldomain="$(echo "$1". | _lower_case)" # Add dot at end of domain name
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txtvalue=$2
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_yc_prepare_key_file
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trap _yc_cleanup_key_file 0
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YC_Zone_ID="${YC_Zone_ID:-$(_readaccountconf_mutable YC_Zone_ID)}"
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YC_Folder_ID="${YC_Folder_ID:-$(_readaccountconf_mutable YC_Folder_ID)}"
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YC_SA_ID="${YC_SA_ID:-$(_readaccountconf_mutable YC_SA_ID)}"
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YC_SA_Key_ID="${YC_SA_Key_ID:-$(_readaccountconf_mutable YC_SA_Key_ID)}"
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if ! _yc_validate_creds; then
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return 1
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fi
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# Save per-domain or per-account settings
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if [ "$YC_Zone_ID" ]; then
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_savedomainconf YC_Zone_ID "$YC_Zone_ID"
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elif [ "$YC_Folder_ID" ]; then
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_savedomainconf YC_Folder_ID "$YC_Folder_ID"
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fi
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_saveaccountconf_mutable YC_SA_ID "$YC_SA_ID"
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_saveaccountconf_mutable YC_SA_Key_ID "$YC_SA_Key_ID"
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if [ "${YC_SA_Key_File_PEM_b64:-}" ]; then
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_saveaccountconf_mutable YC_SA_Key_File_PEM_b64 "$YC_SA_Key_File_PEM_b64"
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_clearaccountconf_mutable YC_SA_Key_File_Path
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else
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_saveaccountconf_mutable YC_SA_Key_File_Path "$YC_SA_Key_File_Path"
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_clearaccountconf_mutable YC_SA_Key_File_PEM_b64
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fi
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_debug "First detect the root zone"
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if ! _get_root "$fulldomain"; then
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_err "invalid domain"
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return 1
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fi
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_debug _domain_id "$_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 ! _yc_rest GET "zones/${_domain_id}:getRecordSet?type=TXT&name=$_sub_domain"; then
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_err "Error: $response"
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return 1
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fi
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_info "Adding record"
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if _yc_rest POST "zones/$_domain_id:upsertRecordSets" "{\"merges\": [ { \"name\":\"$_sub_domain\",\"type\":\"TXT\",\"ttl\":\"120\",\"data\":[\"$txtvalue\"]}]}"; then
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if _contains "$response" "\"done\": true"; then
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_info "Added, OK"
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return 0
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fi
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fi
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_err "Add txt record error."
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return 1
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}
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#fulldomain txtvalue
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dns_yc_rm() {
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fulldomain="$(echo "$1". | _lower_case)" # Add dot at end of domain name
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txtvalue=$2
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_yc_prepare_key_file
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trap _yc_cleanup_key_file 0
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YC_Zone_ID="${YC_Zone_ID:-$(_readaccountconf_mutable YC_Zone_ID)}"
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YC_Folder_ID="${YC_Folder_ID:-$(_readaccountconf_mutable YC_Folder_ID)}"
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YC_SA_ID="${YC_SA_ID:-$(_readaccountconf_mutable YC_SA_ID)}"
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YC_SA_Key_ID="${YC_SA_Key_ID:-$(_readaccountconf_mutable YC_SA_Key_ID)}"
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if ! _yc_validate_creds; then
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return 1
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fi
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_debug "First detect the root zone"
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if ! _get_root "$fulldomain"; 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 "$_domain"
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_debug "Getting txt records"
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if ! _yc_rest GET "zones/${_domain_id}:getRecordSet?type=TXT&name=$_sub_domain"; then
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_err "Error: $response"
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return 1
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fi
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_existing="$(_yc_extract_txt_data_array)"
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_debug existing_data "$_existing"
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# Nothing to delete
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if [ -z "$_existing" ]; then
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_info "No TXT recordset found, skip."
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return 0
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fi
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_newdata="$(_yc_data_array_rm_one "$_existing" "$txtvalue")"
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_debug new_data "$_newdata"
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# If value wasn't present, nothing to do
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if [ "$_newdata" = "$_existing" ]; then
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_info "TXT value not found, skip."
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return 0
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fi
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if [ "$_newdata" = "[]" ]; then
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# delete whole recordset (with previous data array)
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if _yc_rest POST "zones/$_domain_id:updateRecordSets" \
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"{\"deletions\": [ { \"name\":\"$_sub_domain\",\"type\":\"TXT\",\"ttl\":\"120\",\"data\":$_existing }]}"; then
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if _contains "$response" "\"done\": true"; then
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_info "Delete, OK"
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return 0
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fi
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fi
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else
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# keep remaining values
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if _yc_rest POST "zones/$_domain_id:upsertRecordSets" \
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"{\"merges\": [ { \"name\":\"$_sub_domain\",\"type\":\"TXT\",\"ttl\":\"120\",\"data\":$_newdata }]}"; then
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if _contains "$response" "\"done\": true"; then
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_info "Delete, OK"
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return 0
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fi
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fi
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fi
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_err "Delete record error."
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return 1
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}
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#################### Private functions below ##################################
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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=<id>
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_get_root() {
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domain=$1
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i=1
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p=1
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# Use Zone ID directly if provided
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if [ "$YC_Zone_ID" ]; then
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if ! _yc_rest GET "zones/$YC_Zone_ID"; then
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return 1
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fi
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if echo "$response" | tr -d " " | _egrep_o "\"id\":\"$YC_Zone_ID\"" >/dev/null; then
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_domain=$(echo "$response" | _egrep_o "\"zone\": *\"[^\"]*\"" | cut -d : -f 2 | tr -d \" | _head_n 1 | tr -d " ")
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if [ "$_domain" ]; then
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_cutlength=$((${#domain} - ${#_domain}))
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_sub_domain=$(printf "%s" "$domain" | cut -c "1-$_cutlength")
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_domain_id=$YC_Zone_ID
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return 0
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fi
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fi
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return 1
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fi
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while true; do
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h=$(printf "%s" "$domain" | cut -d . -f "$i"-100)
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_debug h "$h"
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if [ -z "$h" ]; then
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return 1
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fi
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if [ "$YC_Folder_ID" ]; then
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if ! _yc_rest GET "zones?folderId=$YC_Folder_ID"; then
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return 1
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fi
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else
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_err "You didn't specify a Yandex Cloud Folder ID."
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return 1
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fi
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if _contains "$response" "\"zone\": \"$h\""; then
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_domain_id=$(echo "$response" | _normalizeJson | _egrep_o "[^{]*\"zone\":\"$h\"[^}]*" | _egrep_o "\"id\"[^,]*" | _egrep_o "[^:]*$" | tr -d '"')
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_debug _domain_id "$_domain_id"
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if [ "$_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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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 "$i" + 1)
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done
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}
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# Extract TXT recordset "data" array from YC response
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# Returns JSON array like ["v1","v2"] or empty string if not found
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_yc_extract_txt_data_array() {
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echo "$response" | _normalizeJson | _egrep_o "\"data\":\\[[^\\]]*\\]" | _egrep_o "\\[[^\\]]*\\]"
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}
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# Remove one txt value from JSON array
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# Args: json_array txtvalue
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# Prints: new json array (possibly "[]")
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_yc_data_array_rm_one() {
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_arr="$1"
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_val="$2"
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[ -z "$_arr" ] && { printf "[]"; return 0; }
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# remove exact JSON string element occurrences
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_new=$(printf "%s" "$_arr" | sed \
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-e "s/\"$_val\",//g" \
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-e "s/,\"$_val\"//g" \
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-e "s/\"$_val\"//g" \
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-e 's/\[,/[/' \
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-e 's/,\]/]/' \
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-e 's/,,/,/g')
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# normalize empty leftovers
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_new=$(printf "%s" "$_new" | sed -e 's/\[ *\]/[]/g')
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# if nothing left between brackets -> []
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if _contains "$_new" '[""]'; then
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printf "%s" "$_new"
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return 0
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fi
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# clean cases like "[" or "]" or "[,]"
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if [ "$_new" = "[]" ] || [ "$_new" = "[" ] || [ "$_new" = "]" ] || [ "$_new" = "[,]" ]; then
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printf "[]"
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return 0
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fi
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printf "%s" "$_new"
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}
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_yc_validate_creds() {
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if [ ! "$YC_SA_ID" ] || [ ! "$YC_SA_Key_ID" ] || [ ! "$YC_SA_Key_File" ]; then
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_err "You didn't specify a YC_SA_ID or YC_SA_Key_ID or YC_SA_Key_File."
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return 1
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fi
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if [ ! -f "$YC_SA_Key_File" ]; then
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_err "YC_SA_Key_File not found in path $YC_SA_Key_File."
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return 1
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fi
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if ! _isRSA "$YC_SA_Key_File" >/dev/null 2>&1; then
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_err "YC_SA_Key_File not a RSA file(_isRSA function return false)."
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return 1
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fi
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if [ ! "$YC_Zone_ID" ] && [ ! "$YC_Folder_ID" ]; then
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_err "You didn't specify a Yandex Cloud Zone ID or Folder ID yet."
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return 1
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fi
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return 0
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}
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# Prepare YC_SA_Key_File from either PEM_b64 (tmp) or File_Path (persistent)
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# Sets:
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# YC_SA_Key_File
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# YC_SA_Key_File_PEM_b64 / YC_SA_Key_File_Path (from env/accountconf)
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# _yc_tmp_key_file (if created)
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_yc_prepare_key_file() {
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YC_SA_Key_File_PEM_b64="${YC_SA_Key_File_PEM_b64:-$(_readaccountconf_mutable YC_SA_Key_File_PEM_b64)}"
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YC_SA_Key_File_Path="${YC_SA_Key_File_Path:-$(_readaccountconf_mutable YC_SA_Key_File_Path)}"
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_yc_tmp_key_file=""
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if [ "$YC_SA_Key_File_PEM_b64" ]; then
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_yc_tmp_key_file="$(mktemp "${TMPDIR:-/tmp}/acme-yc-key.XXXXXX")"
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chmod 600 "$_yc_tmp_key_file"
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echo "$YC_SA_Key_File_PEM_b64" | _dbase64 >"$_yc_tmp_key_file"
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YC_SA_Key_File="$_yc_tmp_key_file"
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else
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YC_SA_Key_File="$YC_SA_Key_File_Path"
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fi
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}
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# Cleanup only temp key (never touch persistent YC_SA_Key_File_Path)
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_yc_cleanup_key_file() {
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if [ "${_yc_tmp_key_file:-}" ] && [ -f "${_yc_tmp_key_file}" ]; then
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rm -f "${_yc_tmp_key_file}"
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fi
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}
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_yc_rest() {
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m=$1
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ep="$2"
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data="${3-}"
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_debug "$ep"
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if [ ! "${YC_Token:-}" ]; then
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_debug "Login"
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_yc_login
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else
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_debug "Token already exists. Skip Login."
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fi
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token_trimmed=$(echo "$YC_Token" | tr -d '"')
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export _H1="Content-Type: application/json"
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export _H2="Authorization: Bearer $token_trimmed"
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if [ "$m" != "GET" ]; then
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_debug data "$data"
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response="$(_post "$data" "$YC_Api/$ep" "" "$m")"
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else
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response="$(_get "$YC_Api/$ep")"
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fi
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if [ "$?" != "0" ]; then
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_err "error $ep"
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return 1
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fi
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_debug2 response "$response"
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return 0
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}
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_yc_login() {
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header=$(echo "{\"typ\":\"JWT\",\"alg\":\"PS256\",\"kid\":\"$YC_SA_Key_ID\"}" | _normalizeJson | _base64 | _url_replace)
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_debug header "$header"
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_current_timestamp=$(_time)
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_expire_timestamp=$(_math "$_current_timestamp" + 1200) # 20 minutes
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payload=$(echo "{\"iss\":\"$YC_SA_ID\",\"aud\":\"https://iam.api.cloud.yandex.net/iam/v1/tokens\",\"iat\":$_current_timestamp,\"exp\":$_expire_timestamp}" | _normalizeJson | _base64 | _url_replace)
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_debug payload "$payload"
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_signature=$(printf "%s.%s" "$header" "$payload" | _sign "$YC_SA_Key_File" "sha256 -sigopt rsa_padding_mode:pss -sigopt rsa_pss_saltlen:-1" | _url_replace)
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_debug2 _signature "$_signature"
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_jwt=$(printf "{\"jwt\": \"%s.%s.%s\"}" "$header" "$payload" "$_signature")
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_debug2 _jwt "$_jwt"
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export _H1="Content-Type: application/json"
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_iam_response="$(_post "$_jwt" "https://iam.api.cloud.yandex.net/iam/v1/tokens" "" "POST")"
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_debug3 _iam_response "$(echo "$_iam_response" | _normalizeJson)"
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YC_Token="$(echo "$_iam_response" | _normalizeJson | _egrep_o "\"iamToken\"[^,]*" | _egrep_o "[^:]*$" | tr -d '"')"
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_debug3 YC_Token
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return 0
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}
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