node-red-nodes/analysis/swearfilter/74-swearfilter.js

/**
 * Copyright 2013 IBM Corp.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 **/

var RED = require(process.env.NODE_RED_HOME+"/red/red");
var badwords = require('badwords');
if (badwords.length == 0 ) { return; }
var badwordsRegExp = require('badwords/regexp');

function BadwordsNode(n) {
    RED.nodes.createNode(this,n);
    var node = this;
    this.on("input", function(msg) {
        if (typeof msg.payload === "string") {
            if ( !badwordsRegExp.test(msg.payload) ) { node.send(msg); }
        }
    });
}
RED.nodes.registerType("badwords",BadwordsNode);