559 lines
19 KiB
JavaScript
559 lines
19 KiB
JavaScript
const express = require('express');
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const bodyParser = require('body-parser');
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const session = require('express-session');
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const QRCode=require('qrcode');
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const crypto=require('crypto');
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const path=require('path');
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const app = express();
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app.set('view engine','ejs');
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app.use(express.json());
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app.use(express.static('public'));
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const PORT = 3000;
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const PWSalt="!SaltyMagic7283715374";
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const QRSalt="!SaltyMagic5392370662";
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//
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// ToDo, Actions:
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// + Login with Password
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// + Login with Token
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// + Email Link
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// + Signup
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// Change Password
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// + Issue Tickets
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// + Transfer Tickets Complicated page. (One ticket: static with transfer and QR code. Multi: buttons to transfer or show QR code)
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// Split Transfer into admin (change owner, unused/used/cancelled pulldown) and public (no Used column) versions
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// + Use Ticket
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// Claim One Claims, displays QRCode, and allows transfer with a single button.
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// Claim Many Claims, but then displays tickets line by line with update and QRCode functionality
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// Edit Regex based ticket list. Allows changing Owner, Offered, Used (Dropdown).
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//
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// ToDo, Later
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// + Use a templating engine
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// + Store password hashed and salted
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// Make all HTML look nice
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// Logging and Replay system
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//
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function hashPW(pw) {
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const hash0=crypto.createHash('sha256');
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const hash1=hash0.update(pw+PWSalt);
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const hash=hash1.digest("base64");
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return(hash);
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}
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function hashQR(t,ownername) {
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const hash0=crypto.createHash('sha256');
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const hash1=hash0.update(t+QRSalt+ownername);
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const hash=hash1.digest("base64").slice(0,6);
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return(hash);
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}
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//
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// In-memory data structures
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//
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// There are two ways to log in: with a username/password or with a token.
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//
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const users = { "teppy@egenesis.com" : { password: hashPW("x6321872X.1"), superuser:true },
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"fallsonfire@gmail.com" : { password: hashPW("indiantreeonfire"), superuser:false }
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};
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// Status can be "i"=issued, "u"=used, "r"=revoked"
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const tickets = { "habitat-1" : { owner: "teppyx@egenesis.com" , offered: "", paid: 0.00, status:"i" },
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"habitat-2" : { owner: "teppyx@egenesis.com" , offered: "", paid: 0.00, status:"u" },
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"habitat-3" : { owner: "ginachen94@gmail.com", offered: "teppyx@egenesis.com", paid: 0.00, status:"i" },
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"habitat-4" : { owner: "teppyx@egenesis.com" , offered: "noahstern00@gmail.com", paid: 0.00, status:"i" },
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"habitat-5" : { owner: "teppyx@egenesis.com" , offered: "", paid: 0.00, status:"r" },
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"habitat-6" : { owner: "teppyx@egenesis.com" , offered: "", paid: 0.00, status:"i" },
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};
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const camps = { "habitat": { leader: "teppy@egenesis.com", lastid:6 } };
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const tokens = { "abc" : { username: "teppy@egenesis.com", expires: 0 }
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};
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const tokensu = { "teppy@egenesis.com" : "abc"
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};
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// Middleware setup
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app.use(bodyParser.urlencoded({ extended: true }));
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app.use(session({
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secret: 'supersecretkey',
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resave: false,
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saveUninitialized: false,
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}));
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// Middleware to protect routes
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function requireLogin(req, res, next) {
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if (req.session.username) return next();
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req.session.returnTo=req.originalUrl;
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return res.redirect('/login');
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}
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function requireSuperUser(req,res,next) {
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if (req.session.superuser) return next();
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req.session.returnTo=req.originalUrl;
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console.log("In requireSuperUser: ",req.session);
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return res.redirect('/login');
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}
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app.get('/styles.css', (req, res) => {
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res.setHeader('Content-Type', 'text/css');
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res.sendFile(path.join(__dirname, 'public', 'styles.css'));
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});
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function generateSecureToken(length = 8) {
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const characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
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let token = '';
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const array = new Uint8Array(length);
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crypto.getRandomValues(array);
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for (let i = 0; i < length; i++) {
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token += characters.charAt(array[i] % characters.length);
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}
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return token;
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}
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const postmark = require('postmark');
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const client = new postmark.ServerClient('f45bcb9f-6556-4420-9e21-05d16739b5e8');
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app.get('/logintoken', (req, res) => {
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const tok=req.query.token;
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const tokenData = tokens[tok];
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if (!consumeToken(tok)) return res.status(200).send("Missing, Invalid or Expired Token.");
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req.session.username = tokenData.username;
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req.session.superuser= users[tokenData.username].superuser;
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res.redirect('/transfer');
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});
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app.get('/emaillink',(req,res) => {
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res.send(`
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<h1>Email me a login link</h1>
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<form method="POST" action="/emaillink">
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<label>Email Address: <input name="email"></label>
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<button type="submit">Submit</button>`
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)
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});
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// These can be owned, offered, of offering
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function categorizeTickets(username) {
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let rval="none";
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let numtickets=0;
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let simpleowner=0;
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let offering=0;
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let simpleoffered=0;
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let thet="";
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for (const t in tickets) if (tickets[t].status=="i") {
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if (tickets[t].owner==username && tickets[t].offered=="") simpleowner+=1;
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else if (tickets[t].owner==username && tickets[t].offered!=username) offering+=1;
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else if (tickets[t].owner!=username && tickets[t].offered==username) simpleoffered+=1;
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if (tickets[t].owner==username || tickets[t].offered==username) numtickets+=1;
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if (numtickets==1) thet=t; else thet="";
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}
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if (numtickets==0) return [ "none", ""];
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if (numtickets >1) return [ "complex", ""];
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if (simpleowner+offering+simpleoffered>1)
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return [ "error", "" ]
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if (simpleowner==1) return [ "simpleowner", thet ];
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if (offering==1) return [ "simpleoffering", thet ];
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if (simpleoffered==1) return [ "simpleoffered", thet ];
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return [ "complex", "" ];
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}
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app.get('/camps',requireSuperUser, (req,res) => {
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const camplist={};
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for (const c in camps) {
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camplist[c]={ leader:camps[c].leader, issued:0, claimed:0, used:0 };
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}
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for (const t in tickets) {
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const parts=t.split("-");
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const campname=parts[0];
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const ticketnum=Number(parts[1]);
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if (tickets[t].status!="r") {
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camplist[campname].issued+=1;
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if (tickets[t].owner!="") camplist[campname].claimed+=1;
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if (tickets[t].status=="u") camplist[campname].used+=1;
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}
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}
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return res.render("camps",{ username:req.session.username, camps:camplist });
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})
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app.post("/camps",requireSuperUser,(req,res) => {
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console.log("New camp: ");
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const campname=req.body.campname;
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const leader=req.body.leader;
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const qty=Number(req.body.qty);
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camps[campname]??={ leader:leader, lastid:0 };
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for (let i=0; i<qty; i++) {
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camps[campname].lastid+=1;
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tickets[campname+'-'+camps[campname].lastid]={ owner: "", offered: leader, status:"i" };
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}
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return res.redirect("/camps");
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})
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app.get('/issue', requireSuperUser, (req,res) => {
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const camplist={};
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for (const t in tickets) {
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const parts=t.split("-");
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const campname=parts[0];
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const ticketnum=Number(parts[1]);
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camplist[campname]??={ issued:0, claimed:0, used:0 };
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if (tickets[t].status!="r") {
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camplist[campname].issued+=1;
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if (tickets[t].owner!="") camplist[campname].claimed+=1;
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if (tickets[t].status=="u") camplist[campname].used+=1;
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}
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}
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return res.render("issue",{ camps:camplist });
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})
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app.get('/camplead', requireLogin, (req,res) => {
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let username=req.session.username;
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const edit={ tickets: {} };
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for (const t in tickets) if (tickets[t].owner==username) {
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edit.tickets[t]={};
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edit.tickets[t].owner=tickets[t].owner;
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edit.tickets[t].offered=tickets[t].offered;
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}
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return res.render("camplead",edit);
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})
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app.get('/editcamp', requireSuperUser, (req,res) => {
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let campname=req.query.campname;
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const edit={ username:req.session.username, tickets: {} };
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for (const t in tickets) {
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const parts=t.split("-");
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const cname=parts[0];
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const tnum=Number(parts[1]);
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console.log("Cname: ",cname," campname ",campname," tnum ",tnum);
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if (cname==campname) {
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edit.tickets[t]={};
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edit.tickets[t].owner=tickets[t].owner;
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edit.tickets[t].offered=tickets[t].offered;
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edit.tickets[t].status=tickets[t].status;
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}
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}
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console.log("Edit is ",edit);
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return res.render("editcamp",edit);
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})
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app.get('/mytickets',requireLogin, (req,res)=> {
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let username=req.session.username;
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let claimed=0;
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let owned=0;
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let theticket="";
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const edit={ username:req.session.username, tickets: {} };
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for (const t in tickets) {
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if (tickets[t].status=="i" && tickets[t].offered==username) { claimed++; tickets[t].owner=username; tickets[t].offered=""; }
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if (tickets[t].status=="i" && tickets[t].owner==username) {
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owned++;
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if (owned==1) theticket=t; else theticket="";
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edit.tickets[t]={};
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edit.tickets[t].owner=tickets[t].owner;
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edit.tickets[t].offered=tickets[t].offered;
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}
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}
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if (owned==0) return res.render("message",{ username:username, message:"You have no unused tickets" });
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else if (owned==1) return res.render("oneticket",{ username:username, ticket:theticket, offered:tickets[theticket].offered });
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else return res.render("manytickets",edit);
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});
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// Big Kahuna
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// If you have zero tickets, show something saying that
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// For each ticket owned, display options to offer it, use it, or (eventually) pay for it.
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// For each ticket offered, show a button to claim it.
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// Have a button to claim all tickets, if there are multiple offered to you
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app.get('/transfer', requireLogin, async (req,res) => {
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let username=req.session.username;
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const [ cat, ticket ] = categorizeTickets(username);
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const simpledata={ username: username, ticket: ticket };
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if (cat=="none") return res.render("notickets",simpledata);
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if (cat=="error") return res.render("error",simpledata);
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if (cat=="simpleoffered") return res.render("claimone",simpledata);
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if (cat=="simpleoffering") return res.render("retractoffer",simpledata);
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if (cat=="complex") {
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const edit={ username: username, tickets: {} };
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for (const t in tickets)
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if (tickets[t].owner==username || tickets[t].offered==username) {
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edit.tickets[t]={};
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edit.tickets[t].owner=tickets[t].owner;
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edit.tickets[t].offered=tickets[t].offered;
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edit.tickets[t].used=tickets[t].used;
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}
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return res.render("transfer",edit);
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}
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if (cat=="simpleowner") {
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try {
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const hash0=crypto.createHash('sha256');
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const hash1=hash0.update(ticket+QRSalt);
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const hash=hash1.digest("base64").slice(0,6);
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const dataURL=await QRCode.toDataURL('localhost:3000/useticket?t='+ticket+'&h='+hashQR(ticket,username));
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simpledata.qrcode=dataURL;
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return res.render("simpleowner",simpledata);
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}
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catch(err) {
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res.status(500).send('Error generating QR code');
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}
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}
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if (cat=="complex") return res.render('transfer',simpledata);
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})
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app.post("/toggle", requireSuperUser, (req,res) => {
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const ticket=req.body.ticket;
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const isChecked = req.body.checked;
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tickets[ticket].used=isChecked;
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res.json({ message: 'Checkbox state received', checked: isChecked });
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})
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app.post("/changestatus", requireSuperUser, (req,res) => {
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const ticket=req.body.ticket;
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console.log("Changestatus ",ticket);
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tickets[ticket].status=req.body.status;
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res.json({ message: 'Status received', status: req.body.status });
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})
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app.post("/updateoffered", requireLogin, (req,res) => {
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console.log("UpdateOffered being rubn");
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const ticket=req.body.ticket;
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const offered=req.body.offered;
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if (tickets[ticket].owner!=req.session.username) res.status(500).send("Ticket "+ticket+" owned by someone else");
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else if (tickets[ticket].used) res.status(500).send("Ticket "+ticket+" has already been used");
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else {
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tickets[ticket].offered=offered;
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res.json({ message: 'Updated owner of '+ticket+' to '+offered });
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}
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})
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app.post("/updateticketsu", requireSuperUser, (req,res) => {
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const ticket=req.body.ticket;
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const owner=req.body.owner;
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const offered=req.body.offered;
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tickets[ticket].owner=req.body.owner;
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tickets[ticket].offered=req.body.offered;
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res.json({ message: 'Updated '+ticket });
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})
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app.get("/useticket",(req,res) => {
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let ticket=req.t;
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let hash=req.h;
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if (hashQR(ticket,req.session.username)!=hash) res.status(500).send("Ticket "+ticket+" was transferred to "+tickets[ticket].username);
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else if (tickets[ticket].used) res.status(500).send("Ticket "+ticket+" has already been used.");
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else {
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tickets[ticket].used=new Date().toISOString();
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res.send("<h1>Welcome, "+tickets[ticket].username+" to Falls on Fire! Ticket "+ticket+" has now been used.</h1>");
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}
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})
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function knownEmail(email) {
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if (users[email]) return true;
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for (const key in tickets)
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if (tickets[key].owner==email || tickets[key].offered==email) return true;
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return false;
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}
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app.post('emaillink',(req,res) => {
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if (!knownUser(req.email)) return res.send("Unknown User");
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const tok=createtoken(email);
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client.sendEmail({ From: 'tickets@fallsonfire.net',
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To: 'teppy@egenesis.com',
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Subject: 'Falls on Fire Tickets, Login Link',
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TextBody: 'Your Login Link: http://www.fallonfire.net/longinlink?token='+tok,
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HtmlBody: '<p>Your Login Link: </p>',
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}).then(() => {
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console.log('Email sent');
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res.send("<h1>Email sent</h1>");
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}).catch((error) => {
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console.error('Error sending email:', error);
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res.send("<h1>Email failed</h1>");
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});
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res.send("Email link sent");
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})
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app.get('/testemail',
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(req,res) => {
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client.sendEmail({ From: 'tickets@fallsonfire.net',
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To: 'teppy@egenesis.com',
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Subject: 'Email from Ticketing System',
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TextBody: 'This is a test email.',
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HtmlBody: '<p>This is a test email.</p>',
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}).then(() => {
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console.log('Email sent');
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res.send("<h1>Email sent</h1>");
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}).catch((error) => {
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console.error('Error sending email:', error);
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res.send("<h1>Email failed</h1>");
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})});
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// Routes
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app.get('/', (req, res) => {
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if (req.session.username) {
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res.send(`
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<h1>Welcome, ${req.session.username}</h1>
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<a href="/products">Products</a><br>
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<a href="/faq">FAQ</a><br>
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<a href="/logout">Log Out</a>
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`);
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} else {
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res.send(`
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<h1>Welcome to our website!</h1>
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<a href="/login">Log In</a><br>
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<a href="/signup">Sign Up</a>
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`);
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}
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});
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app.get('/signup', (req, res) => {
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res.send(`
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<h1>Sign Up</h1>
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<form method="POST" action="/signup">
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<label>Username: <input type="text" name="username" required></label><br>
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<label>Password: <input type="password" name="password" required></label><br>
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<button type="submit">Sign Up</button>
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</form>
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<a href="/login">Log In</a>
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`);
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});
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function consumeToken(tok) {
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if (!(tok in tokens)) return false;
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const rval=tokens[tok].expires==0 || tokens[tok].expires>=Date.now();
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delete tokensu[tokens[tok].username];
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delete tokens[tok];
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return rval;
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}
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function createToken(username) {
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const token=generateSecureToken();
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tokens[token]={ username: username, expires:0 };
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tokensu[username]=token;
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return token;
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}
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app.get('/test', (req, res) => {
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res.send("Test worked:" + consumeToken("abc"));
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})
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app.post('/signup', (req, res) => {
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const { username, password } = req.body;
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if (users[username]) {
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return res.send('User already exists. <a href="/signup">Try again</a>');
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}
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users[username] = { password: hashPW(password) };
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console.log("Created new account:",username);
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res.redirect('/login');
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});
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app.get('/changepassword', (req, res) => {
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res.send(`
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<h1>Change Password</h1>
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<form method="POST" action="/changepassword">
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<label>Password: <input type="password" name="password1" required></label><br>
|
|
<label>Again: <input type="password" name="password2" required></label><br>
|
|
<button type="submit">Sign Up</button>
|
|
</form>
|
|
<a href="/">Home</a>
|
|
`);
|
|
});
|
|
|
|
app.post('/changepassword', (req, res) => {
|
|
const { password1, password2 } = req.body;
|
|
if (!req.session.username) {
|
|
return res.send('You are not logged in<a href="/">Back</a>');
|
|
}
|
|
if (password1!=password2) {
|
|
return res.send('Passwords do not match<a href="/">Back</a>');
|
|
}
|
|
users[req.session.username].password=hashPW(password1);
|
|
res.redirect('/login');
|
|
});
|
|
|
|
app.get('/login', (req, res) => {
|
|
console.log("In get /login: ",req.session);
|
|
res.send(`
|
|
<h1>Log In</h1>
|
|
<form method="POST" action="/login">
|
|
<label>Username: <input type="text" name="username" required></label><br>
|
|
<label>Password: <input type="password" name="password" required></label><br>
|
|
<button type="submit">Log In</button>
|
|
</form>
|
|
<a href="/signup">Sign Up</a>
|
|
`);
|
|
});
|
|
|
|
app.post('/login', (req, res) => {
|
|
const { username, password, superuser } = req.body;
|
|
if (users[username] && users[username].password === hashPW(password)) {
|
|
req.session.username = username;
|
|
req.session.superuser = users[username].superuser;
|
|
console.log("In post /login",req.session);
|
|
const redir=req.session.returnTo;
|
|
delete req.session.returnTo;
|
|
return res.redirect(redir || "/transfer");
|
|
}
|
|
res.send('Invalid username or password. <a href="/login">Try again</a>');
|
|
});
|
|
|
|
app.get('/logout', (req, res) => {
|
|
req.session.destroy(() => {
|
|
res.redirect('/');
|
|
});
|
|
});
|
|
|
|
app.post('/qrcode',requireLogin,async (req,res) => {
|
|
const username=req.session.username;
|
|
const ticket=req.body.ticket;
|
|
if (tickets[ticket].owner!=username) return res.status(500).send("Only a ticket owner can generate a QR code");
|
|
const URL=await QRCode.toDataURL('localhost:3000/useticket?t='+ticket+'&h='+hashQR(ticket,username));
|
|
return res.send({ owner:tickets[ticket].owner, qrcode: URL });
|
|
})
|
|
|
|
app.post('/qrcodesu',requireSuperUser,async (req,res) => {
|
|
const username=req.session.username;
|
|
const ticket=req.body.ticket;
|
|
const URL=await QRCode.toDataURL('localhost:3000/useticket?t='+ticket+'&h='+hashQR(ticket,username));
|
|
return res.send({ owner:tickets[ticket].owner, qrcode: URL });
|
|
})
|
|
|
|
// Protected routes
|
|
app.get('/products', requireLogin, (req, res) => {
|
|
res.send(`
|
|
<h1>Products Page</h1>
|
|
<p>Here is a list of products!</p>
|
|
<a href="/">Home</a>
|
|
`);
|
|
});
|
|
|
|
app.get('/tickets', requireLogin, (req, res) => {
|
|
res.write(`<h1>Tickets for `+req.session.username+`</h1>`);
|
|
res.write(`<a href="/">Home</a>`);
|
|
res.end();
|
|
});
|
|
|
|
app.get('/faq', requireLogin, (req, res) => {
|
|
res.send(`
|
|
<h1>FAQ Page</h1>
|
|
<p>Here are some frequently asked questions.</p>
|
|
<a href="/">Home</a>
|
|
`);
|
|
});
|
|
|
|
// Start the server
|
|
app.listen(PORT, () => {
|
|
console.log(`Server is running at http://localhost:${PORT}`);
|
|
});
|