mirror of https://github.com/node-red/node-red.git
67 lines
2.8 KiB
JavaScript
67 lines
2.8 KiB
JavaScript
/**
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* Copyright JS Foundation and other contributors, http://js.foundation
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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 cheerio = require('cheerio');
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function CheerioNode(n) {
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RED.nodes.createNode(this,n);
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this.tag = n.tag;
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this.ret = n.ret || "html";
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this.as = n.as || "single";
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var node = this;
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this.on("input", function(msg) {
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if (msg.hasOwnProperty("payload")) {
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var tag = node.tag;
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if (msg.hasOwnProperty("select")) { tag = node.tag || msg.select; }
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try {
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var $ = cheerio.load(msg.payload);
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var pay = [];
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$(tag).each(function() {
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if (node.as === "multi") {
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var pay2 = null;
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if (node.ret === "html") { pay2 = cheerio.load($(this).html().trim()).xml(); }
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if (node.ret === "text") { pay2 = $(this).text(); }
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if (node.ret === "attr") { pay2 = this.attribs; }
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//if (node.ret === "val") { pay2 = $(this).val(); }
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/* istanbul ignore else */
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if (pay2) {
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msg.payload = pay2;
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node.send(msg);
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}
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}
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if (node.as === "single") {
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if (node.ret === "html") { pay.push( cheerio.load($(this).html().trim()).xml() ); }
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if (node.ret === "text") { pay.push( $(this).text() ); }
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if (node.ret === "attr") { pay.push( this.attribs ); }
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//if (node.ret === "val") { pay.push( $(this).val() ); }
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}
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});
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if ((node.as === "single") && (pay.length !== 0)) {
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msg.payload = pay;
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node.send(msg);
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}
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} catch (error) {
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node.error(error.message,msg);
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}
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}
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else { node.send(msg); } // If no payload - just pass it on.
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});
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}
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RED.nodes.registerType("html",CheerioNode);
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}
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