/
web.js
134 lines (120 loc) · 3.66 KB
/
web.js
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module.exports.setStatus = setStatus;
module.exports.setSettings = setSettings;
module.exports.setQuiz = setQuiz;
module.exports.setCommands = setCommands;
var status = {};
var settings = {};
var quiz = {};
var commands = {};
var http = require('http');
var fs = require('fs');
var Mustache = require('mustache');
function setQuiz(newQuiz){
quiz = newQuiz;
}
function setStatus(newStatus){
status = newStatus;
}
function setSettings(newSettings){
settings = newSettings;
http.createServer(processRequest).listen(settings.http.port);
}
function setCommands(newCommands){
commands = newCommands;
}
function processRequest(req, res){
if(!checkAuth(req)){
res.writeHead(401,{'WWW-Authenticate':'Basic realm=Authorization required'});
res.end('Unauthorized');
} else {
if(req.url == '/'){
serveModule('main', req, res);
} else if(req.url.startsWith('/files/')){
var path = req.url.split('/');
var filename = './web/' + path[1] + '/' + path[2];
serveFile(res, filename);
} else if(req.url.startsWith('/modules/')){
var modname = req.url.split('/')[2];
serveModule(modname, req, res);
}
}
}
var modules = {
'main': function(req, res){
httpPageHeaderFooter(res, '', [], 'main');
},
'showStatus': function(req, res){
httpPageHeaderFooter(res, '', ['status', 'commands'], 'showStatus');
},
'status': function(req, res){
res.writeHead(200,{'Content-Type':'application/json'});
res.end(JSON.stringify(status));
}
};
function serveModule(modname, req, res){
try {
if(modname in modules){
modules[modname](req, res); // internal module
} else {
var modfile = './web/'+modname.split('/')[0]+'.js';
delete require.cache[require.resolve(modfile)];
var module = require(modfile);
module.init(status, settings, quiz, commands);
module.run(req, res); // external module
}
} catch(e){
console.log('Exception in http handler: '+e);
res.writeHead(404);
res.end();
}
}
function serveFile(res, filename){
try {
var ext = filename.split(/\.(?=[^\.]+$)/)[1] || '';
var data = fs.readFileSync(filename);
var mime = 'text/plain';
switch(ext.toLowerCase()){
case 'html': mime = 'text/html'; break;
case 'gif': mime = 'image/gif'; break;
case 'png': mime = 'image/png'; break;
case 'jpg': case 'jpeg': mime = 'image/jpeg'; break;
case 'js': mime = 'text/javascript'; break;
case 'css': mime = 'text/css'; break;
}
res.writeHead(200,{'Content-Type':mime});
res.end(data);
} catch(e){
console.log('Exception in http handler: '+e);
res.writeHead(404);
res.end();
}
}
function checkAuth(req){
var header = req.headers['authorization'] || '';
var token = header.split(/\s+/).pop() || '';
var auth = new Buffer.from(token, 'base64').toString();
var parts = auth.split(/:/);
var username = parts[0];
var password = parts[1];
if(username != settings.http.login || password != settings.http.password){
return false;
}
return true;
}
function httpPageHeaderFooter(res, data = '', scripts = [], template = false, templateData = {}){
httpHeader(res);
var parsedTemplate = '';
var html = '<html><head><title>node-ircquiz</title><script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>';
for(var i=0; i<scripts.length; i++){
html += '<script src="/files/' + scripts[i] + '.js"></script>';
}
if(template){
var templateFile = fs.readFileSync('./web/' + template + '.html', {encoding: 'utf-8'});
parsedTemplate = Mustache.render(templateFile, templateData);
}
html += '<link rel="stylesheet" type="text/css" href="/files/style.css"></head><body>' + data + parsedTemplate + '</body></html>';
res.end(html);
}
function httpHeader(res){
res.writeHead(200,{'Content-Type':'text/html; charset=utf-8'});
}