80 lines
3.1 KiB
JavaScript
80 lines
3.1 KiB
JavaScript
/**
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* Copyright 2013, 2015 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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module.exports = function(RED) {
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"use strict";
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var FeedParser = require("feedparser");
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var request = require("request");
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function FeedParseNode(n) {
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RED.nodes.createNode(this,n);
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this.url = n.url;
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this.interval = (parseInt(n.interval)||15) * 60000;
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var node = this;
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this.interval_id = null;
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this.seen = {};
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if (this.url !== "") {
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var getFeed = function() {
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var req = request(node.url, {timeout: 10000, pool: false});
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//req.setMaxListeners(50);
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//req.setHeader('user-agent', 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.63 Safari/537.36');
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req.setHeader('accept', 'text/html,application/xhtml+xml');
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var feedparser = new FeedParser();
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req.on('error', function(err) { node.error(err); });
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req.on('response', function(res) {
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if (res.statusCode != 200) { node.warn(RED._("feedparse.errors.badstatuscode")); }
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else { res.pipe(feedparser); }
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});
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feedparser.on('error', function(error) { node.error(error); });
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feedparser.on('readable', function () {
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var stream = this, article;
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while (article = stream.read()) { // jshint ignore:line
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if (!(article.guid in node.seen) || ( node.seen[article.guid] !== 0 && node.seen[article.guid] != article.date.getTime())) {
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node.seen[article.guid] = article.date?article.date.getTime():0;
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var msg = {
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topic: article.origlink || article.link,
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payload: article.description,
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article: article
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};
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node.send(msg);
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}
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}
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});
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feedparser.on('meta', function (meta) {});
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feedparser.on('end', function () {});
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};
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this.interval_id = setInterval(function() { getFeed(); }, node.interval);
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getFeed();
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} else {
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this.error(RED._("feedparse.errors.invalidurl"));
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}
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this.on("close", function() {
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if (this.interval_id != null) {
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clearInterval(this.interval_id);
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}
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});
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}
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RED.nodes.registerType("feedparse",FeedParseNode);
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}
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