node-red-contrib-snap4city-user
Version:
Nodes for Snap4city project, targeted to standard user (no developer)
64 lines (60 loc) • 3.24 kB
JavaScript
/* NODE-RED-CONTRIB-SNAP4CITY-USER
Copyright (C) 2018 DISIT Lab http://www.disit.org - University of Florence
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
module.exports = function (RED) {
function twitterlasttweet(config) {
RED.nodes.createNode(this, config);
var node = this;
var s4cUtility = require("./snap4city-utility.js");
const logger = s4cUtility.getLogger(RED, node);
node.on("input", function (msg) {
var uri = "http://disit.org/rttv/query/select.php";
var TwRtwChannel = (msg.payload.TwRtwChannel ? msg.payload.TwRtwChannel : config.TwRtwChannel);
var username = (msg.payload.username ? msg.payload.username : config.username);
var password = (msg.payload.password ? msg.payload.username : config.password);
var inPayload = msg.payload;
var XMLHttpRequest = require("xmlhttprequest").XMLHttpRequest;
var btoa = require("btoa");
var xmlHttp = new XMLHttpRequest();
logger.info(encodeURI(uri + "/?TwRtwChannel=" + TwRtwChannel));
xmlHttp.open("GET", encodeURI(uri + "/?TwRtwChannel=" + TwRtwChannel), true);
xmlHttp.setRequestHeader("Authorization", "Basic " + btoa(username + ":" + password));
xmlHttp.onload = function (e) {
if (xmlHttp.readyState === 4) {
if (xmlHttp.status === 200) {
logger.info("ResponseText: " + xmlHttp.responseText);
if (xmlHttp.responseText != "") {
try {
msg.payload = JSON.parse(xmlHttp.responseText);
} catch (e) {
msg.payload = xmlHttp.responseText;
}
} else {
msg.payload = JSON.parse("{\"status\": \"There was some problem\"}");
}
s4cUtility.eventLog(RED, inPayload, msg, config, "Node-Red", "TwitterVigilance", uri, "RX");
node.send(msg);
} else {
logger.error(xmlHttp.statusText);
node.error(xmlHttp.responseText, msg);
}
}
};
xmlHttp.onerror = function (e) {
logger.error(xmlHttp.statusText);
node.error(xmlHttp.responseText, msg);
};
xmlHttp.send(null);
});
}
RED.nodes.registerType("twitter-last-tweet", twitterlasttweet);
}