2014-04-29 18:01:30 +02:00
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2014-05-04 00:32:04 +02:00
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module.exports = function(RED) {
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2014-05-29 23:13:21 +02:00
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"use strict";
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2014-05-04 00:32:04 +02:00
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var xml2js = require('xml2js');
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var parseString = xml2js.parseString;
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2014-05-29 23:13:21 +02:00
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2014-05-04 00:32:04 +02:00
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function XMLNode(n) {
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RED.nodes.createNode(this,n);
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2015-09-26 14:46:35 +02:00
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this.attrkey = n.attr;
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this.charkey = n.chr;
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2018-01-16 22:43:37 +01:00
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this.property = n.property||"payload";
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2014-05-04 00:32:04 +02:00
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var node = this;
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2019-11-29 08:55:51 +01:00
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this.on("input", function(msg,send,done) {
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2018-01-16 22:43:37 +01:00
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var value = RED.util.getMessageProperty(msg,node.property);
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if (value !== undefined) {
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2016-10-26 23:06:35 +02:00
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var options;
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2018-01-16 22:43:37 +01:00
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if (typeof value === "object") {
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2016-10-26 23:06:35 +02:00
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options = {renderOpts:{pretty:false}};
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2015-09-26 14:46:35 +02:00
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if (msg.hasOwnProperty("options") && typeof msg.options === "object") { options = msg.options; }
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options.async = false;
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2016-10-26 23:06:35 +02:00
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var builder = new xml2js.Builder(options);
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2018-01-16 22:43:37 +01:00
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value = builder.buildObject(value, options);
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RED.util.setMessageProperty(msg,node.property,value);
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2019-11-29 08:55:51 +01:00
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send(msg);
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done();
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2014-04-29 18:01:30 +02:00
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}
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2018-01-16 22:43:37 +01:00
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else if (typeof value == "string") {
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2016-10-26 23:06:35 +02:00
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options = {};
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2015-09-26 14:46:35 +02:00
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if (msg.hasOwnProperty("options") && typeof msg.options === "object") { options = msg.options; }
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options.async = true;
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options.attrkey = node.attrkey || options.attrkey || '$';
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options.charkey = node.charkey || options.charkey || '_';
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2018-01-16 22:43:37 +01:00
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parseString(value, options, function (err, result) {
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2019-11-29 08:55:51 +01:00
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if (err) { done(err); }
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2014-08-04 11:07:45 +02:00
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else {
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2023-05-22 14:57:12 +02:00
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// TODO: With xml2js@0.5.0, they return an object with
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// a null prototype. This could cause unexpected
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// issues. So for now, we have to reconstruct
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// the object with a proper prototype.
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// Once https://github.com/Leonidas-from-XIV/node-xml2js/pull/674
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// is merged, we can revisit and hopefully remove this hack
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value = fixObj(result)
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2018-01-16 22:43:37 +01:00
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RED.util.setMessageProperty(msg,node.property,value);
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2019-11-29 08:55:51 +01:00
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send(msg);
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done();
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2014-08-04 11:07:45 +02:00
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}
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});
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2014-04-29 18:01:30 +02:00
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}
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2019-11-29 08:55:51 +01:00
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else { node.warn(RED._("xml.errors.xml_js")); done(); }
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2014-04-29 18:01:30 +02:00
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}
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2019-11-29 08:55:51 +01:00
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else { send(msg); done(); } // If no property - just pass it on.
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2014-05-04 00:32:04 +02:00
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});
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}
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RED.nodes.registerType("xml",XMLNode);
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2023-05-22 14:57:12 +02:00
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function fixObj(obj) {
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const res = {}
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const keys = Object.keys(obj)
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keys.forEach(k => {
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if (typeof obj[k] === 'object' && obj[k]) {
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res[k] = fixObj(obj[k])
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} else {
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res[k] = obj[k]
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}
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})
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return res
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}
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2014-04-29 18:01:30 +02:00
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}
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