node-red-contrib-snap4city-user
Version:
Nodes for Snap4city project, targeted to standard user (no developer)
101 lines (89 loc) • 4.74 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 RecommendationsWithinCircle(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://screcommender.km4city.org/SmartCityRecommender/";
var latitude = (msg.payload.latitude ? msg.payload.latitude : config.latitude);
var longitude = (msg.payload.longitude ? msg.payload.longitude : config.longitude);
var maxDists = (msg.payload.maxdistance ? msg.payload.maxdistance : config.maxdists);
var language = (msg.payload.lang ? msg.payload.lang : config.lang);
var profile = (msg.payload.profile ? msg.payload.profile : config.profile);
const uid = s4cUtility.retrieveAppID(RED);
var inPayload = msg.payload;
var XMLHttpRequest = require("xmlhttprequest").XMLHttpRequest;
var xmlHttp = new XMLHttpRequest();
logger.info(encodeURI(uri + "/?action=recommend&mode=manual&aroundme=true&version=4.4.0&profile=" + profile + "&latitude=" + latitude + "&longitude=" + longitude + "&distance=" + maxDists + "&lang=" + language + (typeof uid != "undefined" && uid != "" ? "&uid=" + uid : "") + "&appID=iotapp"));
xmlHttp.open("GET", encodeURI(uri + "/?action=recommend&mode=manual&aroundme=true&version=4.4.0&profile=" + profile + "&latitude=" + latitude + "&longitude=" + longitude + "&distance=" + maxDists + "&lang=" + language + (typeof uid != "undefined" && uid != "" ? "&uid=" + uid : "") + "&appID=iotapp"), true); // false for synchronous request
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", "ASCAPI", 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("recommendations-within-circle", RecommendationsWithinCircle);
RED.httpAdmin.get('/s4c/js/*', function (req, res) {
var options = {
root: __dirname + '/lib/js/',
dotfiles: 'deny'
};
res.sendFile(req.params[0], options);
});
RED.httpAdmin.get('/s4c/css/*', function (req, res) {
var options = {
root: __dirname + '/lib/css/',
dotfiles: 'deny'
};
res.sendFile(req.params[0], options);
});
RED.httpAdmin.get('/s4c/json/*', function (req, res) {
var options = {
root: __dirname + '/lib/json/',
dotfiles: 'deny'
};
res.sendFile(req.params[0], options);
});
RED.httpAdmin.get('/s4c/img/*', function (req, res) {
var options = {
root: __dirname + '/lib/img/',
dotfiles: 'deny'
};
res.sendFile(req.params[0], options);
});
}