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134 lines
3.9 KiB
134 lines
3.9 KiB
const http = require("http");
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const fs = require("fs");
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const ini = require("ini");
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const lineReader = require('line-reader');
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const express = require("express");
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const socketio = require('socket.io');
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const path = require('path');
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const Tail = require('tail-file');
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const CircularBuffer = require("circular-buffer");
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const inifile = ini.parse(fs.readFileSync('/usr/local/etc/dashboard.ini', 'utf-8'));
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const host = inifile.config.host;
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const port = inifile.config.port;
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const links = inifile.logs.links;
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const linkqueue = parseInt(inifile.params.linkqueue);
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const heardqueue = parseInt(inifile.params.heardqueue);
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const headers = inifile.logs.headers;
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const dgwconfig = ini.parse(fs.readFileSync(inifile.config.dgwconfig, 'utf-8'));
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const app = express();
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const buf = new CircularBuffer(heardqueue);
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const linklist = new CircularBuffer(linkqueue);
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const urls = inifile.urls;
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var repeaterlist = [];
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linklist.push({'timestamp':'0000-00-00 00:00:00' , 'protocol': 'none' , 'device':'none',
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'repeater': 'none', 'reflector': 'none' , 'direction' : '' });
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updatelinks();
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let serverPort = inifile.config.port;
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const server = http
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.createServer(
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app
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)
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.listen(serverPort, ()=>{
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console.log('server is running at port ' + serverPort)
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});
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app.get('/', (req,res)=>{
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res.sendFile(path.resolve(__dirname, 'client', 'index.html'));
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});
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app.use(express.static(path.resolve(__dirname, 'client')));
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const io = socketio(server);
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function senddata(dest,data,socket) {
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socket.emit(dest,data);
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}
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function buildrepeaters(){
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repeaterlist = [];
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for (i=1;i < 5;i++) {
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let rptr = eval("dgwconfig.Repeater_"+i);
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if (rptr.enabled) {
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let callsign = dgwconfig.Gateway.callsign;
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if (rptr.callsign !== ""){
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callsign = rptr.callsign;
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}
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callsign += " " + rptr.band;
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repeaterlist.push({'callsign':callsign,'frequency':rptr.frequency,
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'offset':rptr.offset,'type':rptr.type,'description1' :rptr.description1,
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'description2':rptr.description2,'latitude':rptr.latitude, 'longitude': rptr.longitude});
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}
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}
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}
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function updatelinks() {
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const linksregex = /(.*) (.*) (.*) - Type: (.*) Rptr: (.*) Refl: (.*) Dir: (.*)/;
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const linkfile = fs.readFileSync(links).toString();
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const lines = linkfile.split(/\n|\r\n/);
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while (linklist.size() > 0) {
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linklist.deq();
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};
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let i = 0;
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while (i < lines.length) {
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if(lines[i] != "" && lines[i].match(linksregex)) {
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var mylinks = lines[i].match(linksregex);
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// console.log(JSON.stringify(lines[i]));
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var linkrec = {'timestamp':mylinks[1].substr(0,19)+'Z' , 'protocol':mylinks[2] , 'device':mylinks[4],
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'repeater':mylinks[5] , 'reflector':mylinks[6] , 'direction' : mylinks[7] };
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linklist.push(linkrec);
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}
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i++;
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}
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}
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io.on('connection', (socket) => {
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// console.log('WS New connection');
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buildrepeaters();
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senddata("info",JSON.stringify(urls),socket);
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senddata("lastheard",buf.toarray(),socket);
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senddata("links",linklist.toarray(),socket);
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senddata("title",host + " Dashboard",socket);
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senddata("repeaters",repeaterlist,socket);
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// console.log("leaving connection");
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});
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fs.watch(headers, (curr, prev)=>{
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senddata("lastheard",buf.toarray().reverse(),io);
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});
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fs.watch(links, (curr, prev)=>{
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updatelinks();
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senddata("links",linklist.toarray(),io);
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});
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const tailheaders = new Tail(headers, {startPos : 'end'}, line => {
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const headerregex = /(.*) (.*) header.*My: (.*) Your: (.*) *Rpt1: (.*) *Rpt2: (.*) Flags.*\((.*)\)/;
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const groups = line.match(headerregex);
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if (groups) {
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var ipport = groups[7].split(':');
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var my = groups[3].split('/');
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var [dstamp,tstamp] = groups[1].split(" ");
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var record = {'date':dstamp,'time':tstamp.substr(0,8),
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'source':groups[2].trim(),'mycall':my[0].trim(),'msg1':my[1].trim(),
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'urcall':groups[4].trim(),'rpt1':groups[5].trim(),'rpt2':groups[6].trim(),
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'srcip':ipport[0],'srcport':ipport[1]};
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buf.push(record);
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senddata("lastheard",buf.toarray().reverse(),io);
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}
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});
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tailheaders.start();
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