c-chat
Version:
79 lines (49 loc) • 2.01 kB
JavaScript
const log = require("../log");
const messages = require("./messages");
let usersKeys = {};
let userList = [];
decodeBase64 = function(s) {
var e={},i,b=0,c,x,l=0,a,r='',w=String.fromCharCode,L=s.length;
var A="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
for(i=0;i<64;i++){e[A.charAt(i)]=i;}
for(x=0;x<L;x++){
c=e[s.charAt(x)];b=(b<<6)+c;l+=6;
while(l>=8){((a=(b>>>(l-=8))&0xff)||(x<(L-2)))&&(r+=w(a));}
}
return r;
};
function getUsers () {
return userList;
}
function getKeys () {
return usersKeys;
}
function auth (req, res, hash) {
let userInfo = JSON.parse(
decodeBase64(hash)
);
if (userList.indexOf(userInfo.user) === -1) {
usersKeys[userInfo.user] = userInfo.aes;
userList.push(userInfo.user);
res.writeHead(200, {"Content-Type": "text/plain"});
res.write(JSON.stringify({
response: "authSuccess",
aesKeys: usersKeys
}));
res.end();
console.log(userList)
messages.userConnected(userInfo.user);
} else {
res.writeHead(200, {"Content-Type": "text/plain"});
res.write(JSON.stringify({
response: "authFailed",
error: "your username not unique"
}));
res.end();
}
}
module.exports = {
auth: auth,
getUsers: getUsers,
getKeys: getKeys
};