1
0
mirror of https://github.com/node-red/node-red.git synced 2023-10-10 13:36:53 +02:00
node-red/nodes/core/parsers/70-XML.js
2018-01-16 21:43:37 +00:00

48 lines
2.0 KiB
JavaScript

module.exports = function(RED) {
"use strict";
var xml2js = require('xml2js');
var parseString = xml2js.parseString;
function XMLNode(n) {
RED.nodes.createNode(this,n);
this.attrkey = n.attr;
this.charkey = n.chr;
this.property = n.property||"payload";
var node = this;
this.on("input", function(msg) {
var value = RED.util.getMessageProperty(msg,node.property);
if (value !== undefined) {
var options;
if (typeof value === "object") {
options = {renderOpts:{pretty:false}};
if (msg.hasOwnProperty("options") && typeof msg.options === "object") { options = msg.options; }
options.async = false;
var builder = new xml2js.Builder(options);
value = builder.buildObject(value, options);
RED.util.setMessageProperty(msg,node.property,value);
node.send(msg);
}
else if (typeof value == "string") {
options = {};
if (msg.hasOwnProperty("options") && typeof msg.options === "object") { options = msg.options; }
options.async = true;
options.attrkey = node.attrkey || options.attrkey || '$';
options.charkey = node.charkey || options.charkey || '_';
parseString(value, options, function (err, result) {
if (err) { node.error(err, msg); }
else {
value = result;
RED.util.setMessageProperty(msg,node.property,value);
node.send(msg);
}
});
}
else { node.warn(RED._("xml.errors.xml_js")); }
}
else { node.send(msg); } // If no property - just pass it on.
});
}
RED.nodes.registerType("xml",XMLNode);
}