mirror of https://github.com/node-red/node-red.git
128 lines
4.4 KiB
JavaScript
128 lines
4.4 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 cron = require("cron");
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function InjectNode(n) {
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RED.nodes.createNode(this,n);
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this.topic = n.topic;
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this.payload = n.payload;
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this.payloadType = n.payloadType;
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this.repeat = n.repeat;
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this.crontab = n.crontab;
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this.once = n.once;
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this.onceDelay = (n.onceDelay || 0.1) * 1000;
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this.interval_id = null;
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this.cronjob = null;
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var node = this;
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if (node.repeat > 2147483) {
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node.error(RED._("inject.errors.toolong", this));
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delete node.repeat;
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}
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node.repeaterSetup = function () {
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if (this.repeat && !isNaN(this.repeat) && this.repeat > 0) {
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this.repeat = this.repeat * 1000;
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if (RED.settings.verbose) {
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this.log(RED._("inject.repeat", this));
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}
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this.interval_id = setInterval(function() {
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node.emit("input", {});
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}, this.repeat);
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} else if (this.crontab) {
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if (RED.settings.verbose) {
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this.log(RED._("inject.crontab", this));
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}
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this.cronjob = new cron.CronJob(this.crontab, function() { node.emit("input", {}); }, null, true);
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}
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};
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if (this.once) {
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this.onceTimeout = setTimeout( function() {
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node.emit("input",{});
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node.repeaterSetup();
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}, this.onceDelay);
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} else {
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node.repeaterSetup();
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}
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this.on("input",function(msg) {
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msg.topic = this.topic;
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if (this.payloadType !== 'flow' && this.payloadType !== 'global') {
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try {
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if ( (this.payloadType == null && this.payload === "") || this.payloadType === "date") {
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msg.payload = Date.now();
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} else if (this.payloadType == null) {
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msg.payload = this.payload;
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} else if (this.payloadType === 'none') {
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msg.payload = "";
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} else {
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msg.payload = RED.util.evaluateNodeProperty(this.payload,this.payloadType,this,msg);
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}
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this.send(msg);
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msg = null;
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} catch(err) {
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this.error(err,msg);
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}
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} else {
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RED.util.evaluateNodeProperty(this.payload,this.payloadType,this,msg, function(err,res) {
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if (err) {
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node.error(err,msg);
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} else {
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msg.payload = res;
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node.send(msg);
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}
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});
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}
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});
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}
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RED.nodes.registerType("inject",InjectNode);
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InjectNode.prototype.close = function() {
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if (this.onceTimeout) {
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clearTimeout(this.onceTimeout);
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}
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if (this.interval_id != null) {
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clearInterval(this.interval_id);
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if (RED.settings.verbose) { this.log(RED._("inject.stopped")); }
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} else if (this.cronjob != null) {
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this.cronjob.stop();
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if (RED.settings.verbose) { this.log(RED._("inject.stopped")); }
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delete this.cronjob;
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}
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};
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RED.httpAdmin.post("/inject/:id", RED.auth.needsPermission("inject.write"), function(req,res) {
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var node = RED.nodes.getNode(req.params.id);
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if (node != null) {
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try {
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node.receive();
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res.sendStatus(200);
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} catch(err) {
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res.sendStatus(500);
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node.error(RED._("inject.failed",{error:err.toString()}));
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}
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} else {
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res.sendStatus(404);
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}
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});
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}
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