node-red-contrib-snap4city-user
Version:
Nodes for Snap4city project, targeted to standard user (no developer)
90 lines (79 loc) • 4.64 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 GetMyDevices(config) {
RED.nodes.createNode(this, config);
var node = this;
node.filterName = config.filterName;
node.on('input', function (msg) {
var s4cUtility = require("./snap4city-utility.js");
const logger = s4cUtility.getLogger(RED, node);
const uid = s4cUtility.retrieveAppID(RED);
var filterName = (msg.payload.filterName ? msg.payload.filterName : node.filterName);
node.s4cAuth = RED.nodes.getNode(config.authentication);
var uri = ( (node.s4cAuth != null && node.s4cAuth.domain) ? node.s4cAuth.domain : ( RED.settings.ownershipUrl ? RED.settings.ownershipUrl : "https://www.snap4city.org" )) + "/ownership-api/v1/list/";
var inPayload = msg.payload;
var accessToken = "";
accessToken = s4cUtility.retrieveAccessToken(RED, node, config.authentication, uid);
if (accessToken != "" && typeof accessToken != "undefined") {
var XMLHttpRequest = require("xmlhttprequest").XMLHttpRequest;
var xmlHttp = new XMLHttpRequest();
xmlHttp.open("GET", encodeURI(uri + "/?type=IOTID&accessToken=" + accessToken), true);
logger.info(encodeURI(uri + "?type=IOTID&accessToken=" + accessToken));
xmlHttp.setRequestHeader("Content-Type", "application/json");
xmlHttp.onload = function (e) {
if (xmlHttp.readyState === 4) {
if (xmlHttp.status === 200) {
if (xmlHttp.responseText != "") {
try {
var devicesArray = JSON.parse(xmlHttp.responseText);
if (filterName == "") {
msg.payload = devicesArray;
} else {
msg.payload = [];
for (var i = 0; i < devicesArray.length; i++) {
if (devicesArray[i].elementName.toLowerCase().indexOf(filterName.toLowerCase()) != -1) {
msg.payload.push(devicesArray[i]);
}
}
}
} catch (e) {
msg.payload = xmlHttp.responseText;
logger.error("Problem Parsing data " + xmlHttp.responseText);
}
} else {
msg.payload = JSON.parse("{\"status\": \"There was some problem\"}");
}
s4cUtility.eventLog(RED, inPayload, msg, config, "Node-Red", "IOTDirectory", uri, "RX");
node.send(msg);
} else if (xmlHttp.status === 401) {
node.error("Unauthorized");
logger.error("Unauthorized, accessToken: " + accessToken);
} 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);
} else {
node.error("Open the configuration of the node and redeploy");
}
});
}
RED.nodes.registerType("get-my-devices", GetMyDevices);
}