209 lines
9.0 KiB
JavaScript
209 lines
9.0 KiB
JavaScript
/**
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* Copyright 2015, 2018 IBM Corp.
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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 path = require("path");
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var express = require("express");
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var sockjs = require('sockjs');
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var sockets = {};
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// add the cgi module for serving local maps....
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RED.httpNode.use("/cgi-bin/mapserv", require('cgi')(__dirname + '/mapserv'));
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var WorldMap = function(n) {
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RED.nodes.createNode(this,n);
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this.lat = n.lat || "";
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this.lon = n.lon || "";
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this.zoom = n.zoom || "";
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this.layer = n.layer || "";
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this.cluster = n.cluster || "";
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this.maxage = n.maxage || "";
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this.showmenu = n.usermenu || "show";
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this.layers = n.layers || "show";
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this.panlock = n.panlock || "false";
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this.zoomlock = n.zoomlock || "false";
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this.panit = n.panit || "false";
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this.path = n.path || "/worldmap";
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if (this.path.charAt(0) != "/") { this.path = "/" + this.path; }
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if (!sockets[this.path]) {
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var fullPath = path.posix.join(RED.settings.httpNodeRoot, this.path, 'leaflet', 'sockjs.min.js');
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sockets[this.path] = sockjs.createServer({sockjs_url:fullPath, log:function() {}, transports:"xhr-polling"});
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var sockPath = path.posix.join(RED.settings.httpNodeRoot,this.path,'socket');
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this.log("Serving "+__dirname+" as "+this.path); // +" and socket "+sockPath);
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sockets[this.path].installHandlers(RED.server, {prefix:sockPath});
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}
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var node = this;
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var clients = {};
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RED.httpNode.use(node.path, express.static(__dirname + '/worldmap'));
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var callback = function(client) {
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//client.setMaxListeners(0);
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clients[client.id] = client;
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client.on('data', function(message) {
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message = JSON.parse(message);
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if (message.action === "connected") {
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var c = {init:true};
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if (node.lat && node.lat.length > 0) { c.lat = node.lat; }
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if (node.lon && node.lon.length > 0) { c.lon = node.lon; }
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if (node.zoom && node.zoom.length > 0) { c.zoom = node.zoom; }
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if (node.layer && node.layer.length > 0) { c.layer = node.layer; }
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if (node.cluster && node.cluster.length > 0) { c.cluster = node.cluster; }
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if (node.maxage && node.maxage.length > 0) { c.maxage = node.maxage; }
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c.showmenu = node.showmenu;
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c.panit = node.panit;
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c.panlock = node.panlock;
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c.zoomlock = node.zoomlock;
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c.showlayers = node.layers;
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client.write(JSON.stringify({command:c}));
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}
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});
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client.on('close', function() {
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delete clients[client.id];
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node.status({fill:"green",shape:"ring",text:"connected "+Object.keys(clients).length});
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});
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node.status({fill:"green",shape:"dot",text:"connected "+Object.keys(clients).length});
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}
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node.on('input', function(msg) {
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if (msg.hasOwnProperty("_sessionid")) {
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if (clients.hasOwnProperty(msg._sessionid)) {
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clients[msg._sessionid].write(JSON.stringify(msg.payload));
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}
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}
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else {
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for (var c in clients) {
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if (clients.hasOwnProperty(c)) {
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clients[c].write(JSON.stringify(msg.payload));
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}
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}
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}
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});
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node.on("close", function() {
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for (var c in clients) {
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if (clients.hasOwnProperty(c)) {
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clients[c].end();
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}
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}
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sockets[this.path].removeListener('connection', callback);
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for (var i=0; i < RED.httpNode._router.stack.length; i++) {
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var r = RED.httpNode._router.stack[i];
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if ((r.name === "serveStatic") && (r.regexp.test(node.path))) {
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RED.httpNode._router.stack.splice(i, 1)
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}
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}
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node.status({});
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});
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sockets[this.path].on('connection', callback);
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}
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RED.nodes.registerType("worldmap",WorldMap);
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var WorldMapIn = function(n) {
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RED.nodes.createNode(this,n);
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this.path = n.path || "/worldmap";
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if (this.path.charAt(0) != "/") { this.path = "/" + this.path; }
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if (!sockets[this.path]) {
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var fullPath = path.posix.join(RED.settings.httpNodeRoot, this.path, 'leaflet', 'sockjs.min.js');
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sockets[this.path] = sockjs.createServer({sockjs_url:fullPath, prefix:path.posix.join(RED.settings.httpNodeRoot,this.path,'socket')});
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sockets[this.path].installHandlers(RED.server);
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}
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var node = this;
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var clients = {};
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var callback = function(client) {
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//client.setMaxListeners(0);
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clients[client.id] = client;
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node.status({fill:"green",shape:"dot",text:"connected "+Object.keys(clients).length});
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client.on('data', function(message) {
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message = JSON.parse(message);
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node.send({payload:message, topic:node.path.substr(1), _sessionid:client.id});
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});
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client.on('close', function() {
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delete clients[client.id];
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node.status({fill:"green",shape:"ring",text:"connected "+Object.keys(clients).length});
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node.send({payload:{action:"disconnect", clients:Object.keys(clients).length}, topic:"worldmap"});
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});
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}
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node.on("close", function() {
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for (var c in clients) {
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if (clients.hasOwnProperty(c)) {
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clients[c].end();
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}
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}
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sockets[this.path].removeListener('connection', callback);
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node.status({});
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});
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sockets[this.path].on('connection', callback);
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}
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RED.nodes.registerType("worldmap in",WorldMapIn);
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var WorldMapTracks = function(n) {
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RED.nodes.createNode(this,n);
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this.depth = Number(n.depth) || 20;
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this.pointsarray = {};
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var node = this;
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node.on("input", function(msg) {
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if (msg.hasOwnProperty("payload") && msg.payload.hasOwnProperty("name")) {
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var newmsg = RED.util.cloneMessage(msg);
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if (msg.payload.deleted) {
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delete node.pointsarray[msg.payload.name];
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//newmsg.payload.name = msg.payload.name + "_";
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node.send(newmsg); // send the track to be deleted
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return;
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}
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if (!node.pointsarray.hasOwnProperty(msg.payload.name)) {
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node.pointsarray[msg.payload.name] = [];
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}
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node.pointsarray[msg.payload.name].push(msg.payload);
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if (node.pointsarray[msg.payload.name].length > node.depth) {
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node.pointsarray[msg.payload.name].shift();
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}
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var line = [];
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for (var i=0; i<node.pointsarray[msg.payload.name].length; i++) {
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var m = node.pointsarray[msg.payload.name][i];
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if (m.hasOwnProperty("lat") && m.hasOwnProperty("lon")) {
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line.push( [m.lat*1, m.lon*1] );
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delete newmsg.payload.lat;
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delete newmsg.payload.lon;
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}
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if (m.hasOwnProperty("latitude") && m.hasOwnProperty("longitude")) {
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line.push( [m.latitude*1, m.longitude*1] );
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delete newmsg.payload.latitude;
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delete newmsg.payload.longitude;
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}
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if (m.hasOwnProperty("position") && m.position.hasOwnProperty("lat") && m.position.hasOwnProperty("lon")) {
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line.push( [m.position.lat*1, m.position.lon*1] );
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delete newmsg.payload.position;
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}
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}
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if (line.length > 1) { // only send track if two points or more
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newmsg.payload.line = line;
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newmsg.payload.name = msg.payload.name + "_";
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node.send(newmsg); // send the track
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}
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}
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});
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node.on("close", function() {
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node.pointsarray = {};
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});
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}
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RED.nodes.registerType("worldmap-tracks",WorldMapTracks);
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}
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