RTCMultiConnection/server.js at master · PortailPro/RTCMultiConnection · GitHub

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// Muaz Khan      - www.MuazKhan.com
// MIT License    - www.WebRTC-Experiment.com/licence
// Documentation  - github.com/muaz-khan/RTCMultiConnection

// Please use HTTPs on non-localhost domains.
var isUseHTTPs = false && !(!!process.env.PORT || !!process.env.IP);

// user-guide: change port via "config.json"
var port = process.env.PORT || 9001;

var autoRebootServerOnFailure = false;

try {
    var config = require('./config.json');

    if ((config.port || '').toString() !== '9001') {
        port = parseInt(config.port);
    }

    if ((config.autoRebootServerOnFailure || '').toString() !== true) {
        autoRebootServerOnFailure = true;
    }
} catch (e) {}

var server = require(isUseHTTPs ? 'https' : 'http'),
    url = require('url'),
    path = require('path'),
    fs = require('fs');

function serverHandler(request, response) {
    try {
        var uri = url.parse(request.url).pathname,
            filename = path.join(process.cwd(), uri);

        if (filename && filename.search(/server.js|Scalable-Broadcast.js|Signaling-Server.js/g) !== -1) {
            response.writeHead(404, {
                'Content-Type': 'text/plain'
            });
            response.write('404 Not Found: ' + path.join('/', uri) + '\n');
            response.end();
            return;
        }

        var stats;

        try {
            stats = fs.lstatSync(filename);

            if (filename && filename.search(/demos/g) === -1 && stats.isDirectory()) {
                response.writeHead(200, {
                    'Content-Type': 'text/html'
                });
                response.write('<!DOCTYPE html><html><head><meta http-equiv="refresh" content="0;url=/demos/"></head><body></body></html>');
                response.end();
                return;
            }
        } catch (e) {
            response.writeHead(404, {
                'Content-Type': 'text/plain'
            });
            response.write('404 Not Found: ' + path.join('/', uri) + '\n');
            response.end();
            return;
        }

        if (fs.statSync(filename).isDirectory()) {
            response.writeHead(404, {
                'Content-Type': 'text/html'
            });

            if (filename.indexOf('/demos/MultiRTC/') !== -1) {
                filename = filename.replace('/demos/MultiRTC/', '');
                filename += '/demos/MultiRTC/index.html';
            } else if (filename.indexOf('/demos/') !== -1) {
                filename = filename.replace('/demos/', '');
                filename += '/demos/index.html';
            } else {
                filename += '/demos/index.html';
            }
        }


        fs.readFile(filename, 'utf8', function(err, file) {
            if (err) {
                response.writeHead(500, {
                    'Content-Type': 'text/plain'
                });
                response.write('404 Not Found: ' + path.join('/', uri) + '\n');
                response.end();
                return;
            }

            try {
                var demos = (fs.readdirSync('demos') || []);

                if (demos.length) {
                    var h2 = '<h2 style="text-align:center;display:block;"><a href="https://www.npmjs.com/package/rtcmulticonnection-v3"><img src="https://img.shields.io/npm/v/rtcmulticonnection-v3.svg"></a><a href="https://www.npmjs.com/package/rtcmulticonnection-v3"><img src="https://img.shields.io/npm/dm/rtcmulticonnection-v3.svg"></a><a href="https://travis-ci.org/muaz-khan/RTCMultiConnection"><img src="https://travis-ci.org/muaz-khan/RTCMultiConnection.png?branch=master"></a></h2>';
                    var otherDemos = '<section class="experiment" id="demos"><details><summary style="text-align:center;">Check ' + (demos.length - 1) + ' other RTCMultiConnection-v3 demos</summary>' + h2 + '<ol>';
                    demos.forEach(function(f) {
                        if (f && f !== 'index.html' && f.indexOf('.html') !== -1) {
                            otherDemos += '<li><a href="/demos/' + f + '">' + f + '</a> (<a href="https://github.com/muaz-khan/RTCMultiConnection/tree/master/demos/' + f + '">Source</a>)</li>';
                        }
                    });
                    otherDemos += '<ol></details></section><section class="experiment own-widgets latest-commits">';

                    file = file.replace('<section class="experiment own-widgets latest-commits">', otherDemos);
                }
            } catch (e) {}

            try {
                var docs = (fs.readdirSync('docs') || []);

                if (docs.length) {
                    var html = '<section class="experiment" id="docs">';
                    html += '<details><summary style="text-align:center;">RTCMultiConnection Docs</summary>';
                    html += '<h2 style="text-align:center;display:block;"><a href="http://www.rtcmulticonnection.org/docs/">http://www.rtcmulticonnection.org/docs/</a></h2>';
                    html += '<ol>';

                    docs.forEach(function(f) {
                        if (f.indexOf('DS_Store') == -1) {
                            html += '<li><a href="https://github.com/muaz-khan/RTCMultiConnection/tree/master/docs/' + f + '">' + f + '</a></li>';
                        }
                    });

                    html += '</ol></details></section><section class="experiment own-widgets latest-commits">';

                    file = file.replace('<section class="experiment own-widgets latest-commits">', html);
                }
            } catch (e) {}

            response.writeHead(200);
            response.write(file, 'utf8');
            response.end();
        });
    } catch (e) {
        response.writeHead(404, {
            'Content-Type': 'text/plain'
        });
        response.write('<h1>Unexpected error:</h1><br><br>' + e.stack || e.message || JSON.stringify(e));
        response.end();
    }
}

var app;

if (isUseHTTPs) {
    var options = {
        key: fs.readFileSync(path.join(__dirname, 'fake-keys/privatekey.pem')),
        cert: fs.readFileSync(path.join(__dirname, 'fake-keys/certificate.pem'))
    };
    app = server.createServer(options, serverHandler);
} else app = server.createServer(serverHandler);

function runServer() {
    app = app.listen(port, process.env.IP || '0.0.0.0', function() {
        var addr = app.address();

        if (addr.address === '0.0.0.0') {
            addr.address = 'localhost';
        }

        console.log('Server listening at ' + (isUseHTTPs ? 'https' : 'http') + '://' + addr.address + ':' + addr.port);
    });

    require('./Signaling-Server.js')(app, function(socket) {
        try {
            var params = socket.handshake.query;

            // "socket" object is totally in your own hands!
            // do whatever you want!

            // in your HTML page, you can access socket as following:
            // connection.socketCustomEvent = 'custom-message';
            // var socket = connection.getSocket();
            // socket.emit(connection.socketCustomEvent, { test: true });

            if (!params.socketCustomEvent) {
                params.socketCustomEvent = 'custom-message';
            }

            socket.on(params.socketCustomEvent, function(message) {
                try {
                    socket.broadcast.emit(params.socketCustomEvent, message);
                } catch (e) {}
            });
        } catch (e) {}
    });
}

if (autoRebootServerOnFailure) {
    // auto restart app on failure
    var cluster = require('cluster');
    if (cluster.isMaster) {
        cluster.fork();

        cluster.on('exit', function(worker, code, signal) {
            cluster.fork();
        });
    }

    if (cluster.isWorker) {
        runServer();
    }
} else {
    runServer();
}