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273 lines
7.1 KiB
273 lines
7.1 KiB
#!/usr/bin/env sh
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#OPNsense Bind API
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#https://docs.opnsense.org/development/api.html
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#
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#OPNs_Host="opnsense.example.com"
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#OPNs_Port="443"
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# optional, defaults to 443 if unset
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#OPNs_Key="qocfU9RSbt8vTIBcnW8bPqCrpfAHMDvj5OzadE7Str+rbjyCyk7u6yMrSCHtBXabgDDXx/dY0POUp7ZA"
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#OPNs_Token="pZEQ+3ce8dDlfBBdg3N8EpqpF5I1MhFqdxX06le6Gl8YzyQvYCfCzNaFX9O9+IOSyAs7X71fwdRiZ+Lv"
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#OPNs_Api_Insecure=0
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# optional, defaults to 0 if unset
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# Set 1 for insecure and 0 for secure -> difference is whether ssl cert is checked for validity (0) or whether it is just accepted (1)
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######## Public functions #####################
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#Usage: add _acme-challenge.www.domain.com "123456789ABCDEF0000000000000000000000000000000000000"
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#fulldomain
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#txtvalue
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OPNs_DefaultPort=443
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OPNs_DefaultApi_Insecure=0
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dns_opnsense_add() {
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fulldomain=$1
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txtvalue=$2
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_opns_check_auth || return 1
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if ! set_record "$fulldomain" "$txtvalue"; then
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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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#fulldomain
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dns_opnsense_rm() {
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fulldomain=$1
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txtvalue=$2
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_opns_check_auth || return 1
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if ! rm_record "$fulldomain" "$txtvalue"; then
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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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set_record() {
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fulldomain=$1
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new_challenge=$2
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_info "Adding record $fulldomain with challenge: $new_challenge"
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_debug "Detect root zone"
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if ! _get_root "$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 "$_domain"
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_debug _host "$_host"
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_debug _domainid "$_domainid"
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_return_str=""
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_record_string=""
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_build_record_string "$_domainid" "$_host" "$new_challenge"
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_uuid=""
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if _existingchallenge "$_domain" "$_host" "$new_challenge"; then
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# Update
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if _opns_rest "POST" "/record/setRecord/${_uuid}" "$_record_string"; then
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_return_str="$response"
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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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#create
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if _opns_rest "POST" "/record/addRecord" "$_record_string"; then
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_return_str="$response"
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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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if echo "$_return_str" | _egrep_o "\"result\":\"saved\"" >/dev/null; then
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_opns_rest "POST" "/service/reconfigure" "{}"
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_debug "Record created"
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else
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_err "Error creating record $_record_string"
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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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rm_record() {
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fulldomain=$1
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new_challenge="$2"
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_info "Remove record $fulldomain with challenge: $new_challenge"
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_debug "Detect root zone"
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if ! _get_root "$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 "$_domain"
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_debug _host "$_host"
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_debug _domainid "$_domainid"
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_uuid=""
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if _existingchallenge "$_domain" "$_host" "$new_challenge"; then
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# Delete
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if _opns_rest "POST" "/record/delRecord/${_uuid}" "\{\}"; then
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if echo "$_return_str" | _egrep_o "\"result\":\"deleted\"" >/dev/null; then
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_opns_rest "POST" "/service/reconfigure" "{}"
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_debug "Record deleted"
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else
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_err "Error deleting record $_host from domain $fulldomain"
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return 1
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fi
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else
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_err "Error deleting record $_host from domain $fulldomain"
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return 1
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fi
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else
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_info "Record not found, nothing to remove"
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fi
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return 0
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}
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#################### Private functions below ##################################
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#_acme-challenge.www.domain.com
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#returns
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# _domainid=domid
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#_domain=domain.com
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_get_root() {
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domain=$1
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i=2
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p=1
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if _opns_rest "GET" "/domain/get"; then
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_domain_response="$response"
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else
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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 $i-100)
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if [ -z "$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 "$h"
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id=$(echo "$_domain_response" | _egrep_o "\"[^\"]*\":{\"enabled\":\"1\",\"type\":{\"master\":{\"value\":\"master\",\"selected\":1},\"slave\":{\"value\":\"slave\",\"selected\":0}},\"masterip\":{.*}(,\"allownotifyslave\":{\"\":{[^}]*}},|,)\"domainname\":\"${h}\"" | cut -d ':' -f 1 | cut -d '"' -f 2)
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if [ -n "$id" ]; then
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_debug id "$id"
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_host=$(printf "%s" "$domain" | cut -d . -f 1-$p)
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_domain="${h}"
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_domainid="${id}"
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return 0
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fi
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p=$i
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i=$(_math $i + 1)
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done
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_debug "$domain not found"
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return 1
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}
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_opns_rest() {
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method=$1
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ep=$2
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data=$3
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#Percent encode user and token
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key=$(echo "$OPNs_Key" | tr -d "\n\r" | _url_encode)
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token=$(echo "$OPNs_Token" | tr -d "\n\r" | _url_encode)
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opnsense_url="https://${key}:${token}@${OPNs_Host}:${OPNs_Port:-$OPNs_DefaultPort}/api/bind${ep}"
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export _H1="Content-Type: application/json"
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_debug2 "Try to call api: https://${OPNs_Host}:${OPNs_Port:-$OPNs_DefaultPort}/api/bind${ep}"
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if [ ! "$method" = "GET" ]; then
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_debug data "$data"
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export _H1="Content-Type: application/json"
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response="$(_post "$data" "$opnsense_url" "" "$method")"
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else
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export _H1=""
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response="$(_get "$opnsense_url")"
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fi
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if [ "$?" != "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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_build_record_string() {
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_record_string="{\"record\":{\"enabled\":\"1\",\"domain\":\"$1\",\"name\":\"$2\",\"type\":\"TXT\",\"value\":\"$3\"}}"
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}
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_existingchallenge() {
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if _opns_rest "GET" "/record/searchRecord"; then
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_record_response="$response"
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else
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return 1
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fi
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_uuid=""
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_uuid=$(echo "$_record_response" | _egrep_o "\"uuid\":\"[^\"]*\",\"enabled\":\"[01]\",\"domain\":\"$1\",\"name\":\"$2\",\"type\":\"TXT\",\"value\":\"$3\"" | cut -d ':' -f 2 | cut -d '"' -f 2)
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if [ -n "$_uuid" ]; then
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_debug uuid "$_uuid"
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return 0
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fi
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_debug "${2}.$1{1} record not found"
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return 1
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}
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_opns_check_auth() {
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OPNs_Host="${OPNs_Host:-$(_readaccountconf_mutable OPNs_Host)}"
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OPNs_Port="${OPNs_Port:-$(_readaccountconf_mutable OPNs_Port)}"
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OPNs_Key="${OPNs_Key:-$(_readaccountconf_mutable OPNs_Key)}"
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OPNs_Token="${OPNs_Token:-$(_readaccountconf_mutable OPNs_Token)}"
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OPNs_Api_Insecure="${OPNs_Api_Insecure:-$(_readaccountconf_mutable OPNs_Api_Insecure)}"
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if [ -z "$OPNs_Host" ]; then
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_err "You don't specify OPNsense address."
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return 1
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else
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_saveaccountconf_mutable OPNs_Host "$OPNs_Host"
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fi
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if ! printf '%s' "$OPNs_Port" | grep '^[0-9]*$' >/dev/null; then
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_err 'OPNs_Port specified but not numeric value'
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return 1
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elif [ -z "$OPNs_Port" ]; then
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_info "OPNSense port not specified. Defaulting to using port $OPNs_DefaultPort"
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else
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_saveaccountconf_mutable OPNs_Port "$OPNs_Port"
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fi
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if ! printf '%s' "$OPNs_Api_Insecure" | grep '^[01]$' >/dev/null; then
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_err 'OPNs_Api_Insecure specified but not 0/1 value'
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return 1
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elif [ -n "$OPNs_Api_Insecure" ]; then
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_saveaccountconf_mutable OPNs_Api_Insecure "$OPNs_Api_Insecure"
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fi
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export HTTPS_INSECURE="${OPNs_Api_Insecure:-$OPNs_DefaultApi_Insecure}"
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if [ -z "$OPNs_Key" ]; then
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_err "you have not specified your OPNsense api key id."
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_err "Please set OPNs_Key and try again."
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return 1
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else
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_saveaccountconf_mutable OPNs_Key "$OPNs_Key"
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fi
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if [ -z "$OPNs_Token" ]; then
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_err "you have not specified your OPNsense token."
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_err "Please create OPNs_Token and try again."
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return 1
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else
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_saveaccountconf_mutable OPNs_Token "$OPNs_Token"
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fi
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if ! _opns_rest "GET" "/general/get"; then
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_err "Call to OPNsense API interface failed. Unable to access OPNsense API."
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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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