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qr.js
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189 lines (171 loc) · 4.58 KB
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var clients = [],
http = require('http'),
url = require('url'),
fs = require('fs'),
querystring = require('querystring'),
qrcode = require('qrcode'),
UUID = require('uuid-js'),
sha1 = require('sha1'),
redis = require('redis'),
redisClient = redis.createClient(),
redisKey = 'QRCODE_LOGIN_TOKEN';
function generateIndex(sessionID, req, res) {
fs.readFile('./index.html', 'UTF-8', function(err, data) {
data = data.replace(/SESSIONID/g, sessionID);
res.writeHead(200, {
'Content-Type' : 'text/html; charset=UTF-8'
});
res.end(data);
});
}
function generateQRCode(sessionID, req, res) {
res.writeHead(200, {
'Content-Type' : 'image/png'
});
qrcode.draw(sessionID, function(err, canvas) {
res.end(canvas.toBuffer());
});
}
function handleScanned(res, token, sessionID) {
var success = false;
if (typeof(token) != 'undefined') {
var userName;
redisClient.hget(redisKey, token, function(err, reply) {
userName = reply;
if (typeof(userName) != 'undefined') {
for (var int = 0; int < clients.length; int++) {
var clientobj = clients[int];
var savedSession = clientobj.sessionID;
var client = clientobj.res;
if (savedSession == sessionID) {
client.end(JSON.stringify({
cmd : 'scanned'
}));
clients.splice(int, 1);
success = true;
break;
}
}
}
res.writeHead(200, {
'Content-Type' : 'text/html; charset=UTF-8'
});
if (success) {
res.end('scanned');
} else {
res.end('error');
}
});
}
}
function handleConfirmed(res, token, sessionID) {
var success = false;
if (typeof(token) != 'undefined') {
var userName;
redisClient.hget(redisKey, token, function(err, reply) {
userName = reply;
if (typeof(userName) != 'undefined') {
for (var int = 0; int < clients.length; int++) {
var clientobj = clients[int];
var savedSession = clientobj.sessionID;
var client = clientobj.res;
if (savedSession == sessionID) {
client.end(JSON.stringify({
cmd : 'pclogin',
username : userName
}));
clients.splice(int, 1);
success = true;
break;
}
}
}
res.writeHead(200, {
'Content-Type' : 'text/html; charset=UTF-8'
});
if (success) {
res.end('confirmed');
} else {
res.end('error');
}
});
}
}
http.createServer(function(req, res) {
var url_parts = url.parse(req.url);
var path = url_parts.pathname;
var uuid4 = UUID.create();
var _sessionID = uuid4.toString();
if (path == '/') {
var sessionID = url_parts.query;
if (typeof(sessionID) == 'undefined' || sessionID == '' || sessionID === null) {
res.writeHead(200, {
'Refresh' : '0; url=/?' + _sessionID,
'Content-Type' : 'text/html; charset=UTF-8'
});
res.end();
} else {
console.log(sessionID);
generateIndex(sessionID, req, res);
}
} else if (path == '/poll') {
var sessionID = url_parts.query;
if (typeof(sessionID) != 'undefined') {
var sessionObj = {
'sessionID' : sessionID,
'res' : res
};
clients.push(sessionObj);
console.log('client added : ' + sessionObj.sessionID);
} else {
console.log('no sessionID');
}
} else if (path == '/qrcodeimage') {
var sessionID = url_parts.query;
if (typeof(sessionID) != 'undefined') {
generateQRCode(sessionID, req, res);
console.log('QRCode generated');
} else {
console.log('no sessionID');
}
} else if (path == '/moblogin') {
var userName = url_parts.query;
if (typeof(userName) != 'undefined') {
var token = sha1(userName);
redisClient.hset(redisKey, token, userName);
res.writeHead(200, {
'Content-Type' : 'text/html; charset=UTF-8'
});
res.end(token);
console.log('mobile logined');
} else {
console.log('no userName');
}
} else if (path == '/scanned') {
var objQuery = querystring.parse(url_parts.query);
var sessionID = objQuery.sessionid;
var token = objQuery.token;
if (typeof(sessionID) != 'undefined' && typeof(token) != 'undefined') {
handleScanned(res, token, sessionID);
console.log('scanned');
} else {
console.log('no sessionID or no token');
}
} else if (path == '/confirmed') {
var objQuery = querystring.parse(url_parts.query);
var sessionID = objQuery.sessionid;
var token = objQuery.token;
if (typeof(sessionID) != 'undefined' && typeof(token) != 'undefined') {
handleConfirmed(res, token, sessionID);
console.log('confirmed');
} else {
console.log('no sessionID or no token');
}
} else {
res.writeHead(200, {
'Content-Type' : 'text/html; charset=UTF-8'
});
res.end();
}
}).listen(9999, '114.113.159.141');
console.log('Running at port: 9999.');