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‎tamuctf2018/maze/server.js

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//Some ideas on how to run a game server taken from:
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//https://github.com/xicombd/phaser-multiplayer-game
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var express = require('express');
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var app = express();
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var http = require('http').Server(app);
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var socket = require('socket.io')(http);
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var Player = require('./player'); //include our player variable
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var fs = require('fs');
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var path = require('path');
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var flag;
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var err;
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var PORT = 31337; //we are 1337 h4x0r5
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app.use(express.static('public'));
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var players;
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//Added for testability
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//DO NOT DELETE. If you do your test will run for significantly longer than needed.
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app.get('/exit', function(request, response) {
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console.log('exiting...')
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process.exit()
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});
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//mostly inspired by example code given to us by TA
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//returns requested files
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app.get('/*', function(request, response){
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console.log('request starting...');
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var filePath = __dirname + '/..' +request.url;
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if (filePath == __dirname)
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filePath = __dirname + '/../public/index.html';
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var extname = path.extname(filePath);
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var contentType = 'text/html';
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switch (extname) {
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case '.js':
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contentType = 'text/javascript';
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break;
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case '.css':
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contentType = 'text/css';
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break;
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case '.json':
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contentType = 'application/json';
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break;
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case '.png':
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contentType = 'image/png';
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break;
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case '.jpg':
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contentType = 'image/jpg';
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break;
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case '.wav':
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contentType = 'audio/wav';
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break;
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case '.txt':
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contentType = 'text/plain';
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break;
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}
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fs.readFile(filePath, function(error, content) {
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if (error) {
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if(error.code == 'ENOENT'){
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fs.readFile('./404.html', function(error, content) {
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response.writeHead(200, { 'Content-Type': contentType });
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response.end(content, 'utf-8');
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});
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}
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else {
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response.writeHead(500);
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response.end('Sorry, check with the site admin for error: '+error.code+' ..\n');
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response.end();
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}
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}
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else {
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console.log('sending: ' + content);
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response.writeHead(200, { 'Content-Type': contentType });
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response.end(content, 'utf-8');
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}
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});
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});
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http.listen(PORT, function(){ //start up the server on current port
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console.log('listening on *:'+PORT);
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init();
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});
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function init() { //initialize player list, socket, and event handlers
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players = [];
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socket.listen(http);
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setEventHandlers();
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};
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var setEventHandlers = function() {
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socket.sockets.on('connection', onSocketConnection);
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};
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function onSocketConnection(client) {
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console.log("onSocketConnection");
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client.on('newPlayer', onNewPlayer); //listen for new player
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client.on('movePlayer', onMovePlayer); //update a players location
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client.on('disconnect', onClientDisconnect);//a player disconnected
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}
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function onNewPlayer(data) {
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console.log('Player connected: ' + this.id);
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var newPlayer = new Player(data.x, data.y, data.angle); //create the new player
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newPlayer.id = this.id; //set the player id to the same as the socket id since it is unique enough for our purposes
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this.emit('playerID', {id: newPlayer.id}); //send the new player id back to the player
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players.push(newPlayer); //insert new player into servers list of players
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}
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function onMovePlayer (data) {
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// Find player in array
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var movePlayer = playerById(this.id);
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// Player not found
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if (!movePlayer) {
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console.log('Player not found: ' + this.id);
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return;
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}
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if((data.x > 1180 || data.x < 100) || (data.y > 600 || data.y < 100)) {
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fs.readFile("/flag.txt",'utf8' ,(err, flag) => {
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if (err) throw err;
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this.emit('victory', {f: flag});
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console.log(this.id, " Won!");
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});
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}
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// Update player position
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movePlayer.setX(data.x);
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movePlayer.setY(data.y);
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movePlayer.setAngle(data.angle);
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}
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function onClientDisconnect () {
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console.log('Player has disconnected: ' + this.id)
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var removePlayer = playerById(this.id)
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// Player not found
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if (!removePlayer) {
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console.log('Player not found: ' + this.id)
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return
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}
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// Remove player from players array
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players.splice(players.indexOf(removePlayer), 1)
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}
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function playerById (id) { //finds player with given id
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var i;
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for (i = 0; i < players.length; i++) {
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if (players[i].id === id) {
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return players[i];
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}
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}
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return false;
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}
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‎tamuctf2018/maze/server_fixed.js

Lines changed: 168 additions & 0 deletions
Original file line numberDiff line numberDiff line change
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//Some ideas on how to run a game server taken from:
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//https://github.com/xicombd/phaser-multiplayer-game
3+
4+
var express = require('express');
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var app = express();
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var http = require('http').Server(app);
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var socket = require('socket.io')(http);
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var Player = require('./player'); //include our player variable
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var fs = require('fs');
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var path = require('path');
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var flag;
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var err;
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var PORT = 31337; //we are 1337 h4x0r5
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app.use(express.static('public'));
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var players;
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//Added for testability
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//DO NOT DELETE. If you do your test will run for significantly longer than needed.
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app.get('/exit', function(request, response) {
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console.log('exiting...')
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process.exit()
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});
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//mostly inspired by example code given to us by TA
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//returns requested files
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app.get('/*', function(request, response){
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console.log('request starting...');
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var filePath = __dirname + '/..' +request.url;
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if (filePath == __dirname || filePath.indexOf('flag'))
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filePath = __dirname + '/../public/index.html';
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var extname = path.extname(filePath);
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var contentType = 'text/html';
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switch (extname) {
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case '.js':
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contentType = 'text/javascript';
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break;
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case '.css':
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contentType = 'text/css';
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break;
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case '.json':
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contentType = 'application/json';
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break;
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case '.png':
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contentType = 'image/png';
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break;
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case '.jpg':
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contentType = 'image/jpg';
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break;
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case '.wav':
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contentType = 'audio/wav';
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break;
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case '.txt':
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contentType = 'text/plain';
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break;
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}
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fs.readFile(filePath, function(error, content) {
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if (error) {
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if(error.code == 'ENOENT'){
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fs.readFile('./404.html', function(error, content) {
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response.writeHead(200, { 'Content-Type': contentType });
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response.end(content, 'utf-8');
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});
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}
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else {
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response.writeHead(500);
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response.end('Sorry, check with the site admin for error: '+error.code+' ..\n');
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response.end();
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}
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}
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else {
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console.log('sending: ' + content);
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response.writeHead(200, { 'Content-Type': contentType });
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response.end(content, 'utf-8');
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}
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});
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});
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http.listen(PORT, function(){ //start up the server on current port
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console.log('listening on *:'+PORT);
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init();
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});
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function init() { //initialize player list, socket, and event handlers
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players = [];
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socket.listen(http);
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setEventHandlers();
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};
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var setEventHandlers = function() {
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socket.sockets.on('connection', onSocketConnection);
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};
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function onSocketConnection(client) {
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console.log("onSocketConnection");
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client.on('newPlayer', onNewPlayer); //listen for new player
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client.on('movePlayer', onMovePlayer); //update a players location
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client.on('disconnect', onClientDisconnect);//a player disconnected
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}
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function onNewPlayer(data) {
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console.log('Player connected: ' + this.id);
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var newPlayer = new Player(data.x, data.y, data.angle); //create the new player
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newPlayer.id = this.id; //set the player id to the same as the socket id since it is unique enough for our purposes
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this.emit('playerID', {id: newPlayer.id}); //send the new player id back to the player
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players.push(newPlayer); //insert new player into servers list of players
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}
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function onMovePlayer (data) {
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// Find player in array
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var movePlayer = playerById(this.id);
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// Player not found
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if (!movePlayer) {
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console.log('Player not found: ' + this.id);
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return;
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}
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if((data.x > 1180 || data.x < 100) || (data.y > 600 || data.y < 100)) {
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fs.readFile("/flag.txt",'utf8' ,(err, flag) => {
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if (err) throw err;
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this.emit('victory', {f: flag});
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console.log(this.id, " Won!");
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});
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}
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// Update player position
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movePlayer.setX(data.x);
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movePlayer.setY(data.y);
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movePlayer.setAngle(data.angle);
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}
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function onClientDisconnect () {
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console.log('Player has disconnected: ' + this.id)
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var removePlayer = playerById(this.id)
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// Player not found
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if (!removePlayer) {
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console.log('Player not found: ' + this.id)
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return
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}
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// Remove player from players array
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players.splice(players.indexOf(removePlayer), 1)
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}
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function playerById (id) { //finds player with given id
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var i;
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for (i = 0; i < players.length; i++) {
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if (players[i].id === id) {
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return players[i];
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}
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}
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return false;
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}
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