node-red-contrib-credentials/credentials/credentials.js

Provides a credentials node to store one or more private values; preventing export to flows or version control.

module.exports = function (RED) {
    function credentials(config) {
        RED.nodes.createNode(this, config);
        if (typeof this.credentials.creds != 'undefined') {
            if (this.credentials.creds != '') {
                this.creds = JSON.parse(this.credentials.creds);
            }
        }
        if (typeof this.creds == 'undefined') {
            this.creds = [];
        }
        if (typeof config.props == 'undefined') {
            config.props = [];
        }
        var node = this;
        var globalContext = this.context().global;
        var flowContext = this.context().flow;
        this.on('input', function (msg) {
            function setContextPropertyValue(context, property, value) {
                // Assign value to given object and property
                switch (context) {
                    case "msg":
                        RED.util.setMessageProperty(msg, property, value);
                        break;
                    case "flow":
                        flowContext.set(property, value);
                        break;
                    case "global":
                        globalContext.set(property, value);
                        break;
                }
            }
            if (typeof config.props != 'undefined') {
                for (var i = 0; i < config.props.length; i++) {
                    var cred = '';
                    if (typeof node.creds[i] != 'undefined') {
                        cred = node.creds[i];
                    }
                    var prop = config.props[i];
                    if (cred == '') {
                        node.warn('credentials node sending empty value for ' + prop.type + '.' + prop.value + '; configured?');
                    }
                    setContextPropertyValue(prop.type, prop.value, cred.value);
                }
            }
            node.send(msg);
        });
    }
    RED.nodes.registerType("credentials", credentials, {
        credentials: {
            creds: { type: "text" },
        }
    });
}