sync/lib/web/auth.js

225 lines
5.5 KiB
JavaScript

/**
* web/auth.js - Webserver functions for user authentication and registration
*
* @author Calvin Montgomery <cyzon@cyzon.us>
*/
var jade = require("jade");
var fs = require("fs");
var path = require("path");
var webserver = require("./webserver");
var sendJade = require("./jade").sendJade;
var Logger = require("../logger");
var $util = require("../utilities");
var db = require("../database");
var Config = require("../config");
/**
* Processes a login request. Sets a cookie upon successful authentication
*/
function handleLogin(req, res) {
var name = req.body.name;
var password = req.body.password;
if (typeof name !== "string" || typeof password !== "string") {
res.send(400);
return;
}
password = password.substring(0, 100);
db.users.verifyLogin(name, password, function (err, user) {
if (err) {
if (err === "Invalid username/password combination") {
Logger.eventlog.log("[loginfail] Login failed (bad password): " + name
+ "@" + webserver.ipForRequest(req));
}
sendJade(res, "login", {
loggedIn: false,
loginError: err
});
} else {
res.cookie("auth", user.name + ":" + user.hash, {
expires: new Date(Date.now() + 7*24*60*60*1000),
httpOnly: true
});
// Try to find an appropriate redirect
var ref = req.header("referrer");
if (!ref) {
ref = req.body.redirect;
}
if (typeof ref !== "string") {
ref = "";
}
if (ref.match(/login|logout/)) {
ref = "";
}
if (ref) {
res.redirect(ref);
} else {
sendJade(res, "login", {
loggedIn: true,
loginName: user.name
});
}
}
});
}
/**
* Handles a GET request for /login
*/
function handleLoginPage(req, res) {
if (webserver.redirectHttps(req, res)) {
return;
}
if (req.cookies.auth) {
var split = req.cookies.auth.split(":");
if (split.length === 2) {
sendJade(res, "login", {
wasAlreadyLoggedIn: true,
loggedIn: true,
loginName: split[0]
});
return;
}
}
sendJade(res, "login", {
loggedIn: false,
redirect: req.header("Referrer")
});
}
/**
* Handles a request for /logout. Clears auth cookie
*/
function handleLogout(req, res) {
res.clearCookie("auth");
// Try to find an appropriate redirect
var ref = req.header("referrer");
if (!ref) {
ref = req.body.redirect;
}
if (typeof ref !== "string") {
ref = "";
}
if (ref.match(/login|logout/)) {
ref = "";
}
if (ref) {
res.redirect(ref);
} else {
sendJade(res, "logout", {});
}
}
/**
* Handles a GET request for /register
*/
function handleRegisterPage(req, res) {
if (webserver.redirectHttps(req, res)) {
return;
}
if (req.cookies.auth) {
var split = req.cookies.auth.split(":");
if (split.length === 2) {
sendJade(res, "register", {
loggedIn: true,
loginName: split[0]
});
return;
}
}
sendJade(res, "register", {
registered: false,
registerError: false
});
}
/**
* Processes a registration request.
*/
function handleRegister(req, res) {
var name = req.body.name;
var password = req.body.password;
var email = req.body.email;
if (typeof email !== "string") {
email = "";
}
var ip = webserver.ipForRequest(req);
if (typeof name !== "string" || typeof password !== "string") {
res.send(400);
return;
}
if (name.length === 0) {
sendJade(res, "register", {
registerError: "Username must not be empty"
});
return;
}
if (name.match(Config.get("reserved-names.usernames"))) {
sendJade(res, "register", {
registerError: "That username is reserved"
});
return;
}
if (password.length === 0) {
sendJade(res, "register", {
registerError: "Password must not be empty"
});
return;
}
password = password.substring(0, 100);
if (email.length > 0 && !$util.isValidEmail(email)) {
sendJade(res, "register", {
registerError: "Invalid email address"
});
return;
}
db.users.register(name, password, email, ip, function (err) {
if (err) {
sendJade(res, "register", {
registerError: err
});
} else {
Logger.eventlog.log("[register] " + ip + " registered account: " + name +
(email.length > 0 ? " <" + email + ">" : ""));
sendJade(res, "register", {
registered: true,
registerName: name,
redirect: req.body.redirect
});
}
});
}
module.exports = {
/**
* Initializes auth callbacks
*/
init: function (app) {
app.get("/login", handleLoginPage);
app.post("/login", handleLogin);
app.get("/logout", handleLogout);
app.get("/register", handleRegisterPage);
app.post("/register", handleRegister);
}
};