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import { route } from "@fosscord/api";
import {
adjustEmail,
Config,
FieldErrors,
generateToken,
getIpAdress,
HTTPError,
Invite,
IPAnalysis,
isProxy,
RegisterSchema,
User,
ValidRegistrationToken,
verifyCaptcha
} from "@fosscord/util";
import { Request, Response, Router } from "express";
import { red, yellow } from "picocolors";
import { LessThan, MoreThan } from "typeorm";
let bcrypt: any;
try {
bcrypt = require("bcrypt");
} catch {
bcrypt = require("bcryptjs");
console.log("Warning: using bcryptjs because bcrypt is not installed! Performance will be affected.");
}
const router: Router = Router();
router.post("/", route({ body: "RegisterSchema" }), async (req: Request, res: Response) => {
const body = req.body as RegisterSchema;
const { register, security, limits } = Config.get();
const ip = getIpAdress(req);
// email will be slightly modified version of the user supplied email -> e.g. protection against GMail Trick
let email = adjustEmail(body.email);
//check if referrer starts with any valid registration token
//!! bypasses captcha and registration disabling !!//
let validToken = false;
if (req.get("Referrer") && req.get("Referrer")?.includes("token=")) {
let token = req.get("Referrer")?.split("token=")[1].split("&")[0];
if (token) {
await ValidRegistrationToken.delete({ expires_at: LessThan(new Date()) });
let registrationToken = await ValidRegistrationToken.findOne({ where: { token: token, expires_at: MoreThan(new Date()) } });
if (registrationToken) {
console.log(yellow(`[REGISTER] Registration token ${token} used for registration!`));
await ValidRegistrationToken.delete(token);
validToken = true;
} else {
console.log(yellow(`[REGISTER] Invalid registration token ${token} used for registration by ${ip}!`));
}
}
}
// check if the user agreed to the Terms of Service
if (!body.consent) {
throw FieldErrors({
consent: { code: "CONSENT_REQUIRED", message: req.t("auth:register.CONSENT_REQUIRED") }
});
}
if (register.requireCaptcha && security.captcha.enabled && !validToken) {
const { sitekey, service } = security.captcha;
if (!body.captcha_key) {
return res?.status(400).json({
captcha_key: ["captcha-required"],
captcha_sitekey: sitekey,
captcha_service: service
});
}
const verify = await verifyCaptcha(body.captcha_key, ip);
if (!verify.success) {
return res.status(400).json({
captcha_key: verify["error-codes"],
captcha_sitekey: sitekey,
captcha_service: service
});
}
}
// check if registration is allowed
if (!register.allowNewRegistration && !validToken) {
throw FieldErrors({
email: { code: "REGISTRATION_DISABLED", message: req.t("auth:register.REGISTRATION_DISABLED") }
});
}
if (register.blockProxies) {
let data;
try {
data = await IPAnalysis(ip);
} catch (e: any) {
console.warn(red(`[REGISTER]: Failed to analyze IP ${ip}: failed to contact api.ipdata.co!`), e.message);
}
if (data && isProxy(data)) {
console.log(yellow(`[REGISTER] Proxy ${ip} blocked from registration!`));
throw new HTTPError(req.t("auth:register.IP_BLOCKED"));
}
}
// TODO: gift_code_sku_id?
// TODO: check password strength
if (email) {
// check if there is already an account with this email
const exists = await User.findOne({ where: { email: email } });
if (exists && !register.disabled) {
throw FieldErrors({
email: {
code: "EMAIL_ALREADY_REGISTERED",
message: req.t("auth:register.EMAIL_ALREADY_REGISTERED")
}
});
}
} else if (register.email.required) {
throw FieldErrors({
email: { code: "BASE_TYPE_REQUIRED", message: req.t("common:field.BASE_TYPE_REQUIRED") }
});
}
// If no password is provided, this is a guest account
if (register.dateOfBirth.required && !body.date_of_birth && body.password) {
throw FieldErrors({
date_of_birth: { code: "BASE_TYPE_REQUIRED", message: req.t("common:field.BASE_TYPE_REQUIRED") }
});
} else if (register.dateOfBirth.required && register.dateOfBirth.minimum) {
const minimum = new Date();
minimum.setFullYear(minimum.getFullYear() - register.dateOfBirth.minimum);
body.date_of_birth = new Date(body.date_of_birth as Date);
// higher is younger
if (body.date_of_birth > minimum) {
throw FieldErrors({
date_of_birth: {
code: "DATE_OF_BIRTH_UNDERAGE",
message: req.t("auth:register.DATE_OF_BIRTH_UNDERAGE", { years: register.dateOfBirth.minimum })
}
});
}
}
if (body.password) {
// the salt is saved in the password refer to bcrypt docs
body.password = await bcrypt.hash(body.password, 12);
} else if (register.password.required) {
throw FieldErrors({
password: { code: "BASE_TYPE_REQUIRED", message: req.t("common:field.BASE_TYPE_REQUIRED") }
});
}
if (!body.invite && (register.requireInvite || (register.guestsRequireInvite && !register.email))) {
// require invite to register -> e.g. for organizations to send invites to their employees
throw FieldErrors({
email: { code: "INVITE_ONLY", message: req.t("auth:register.INVITE_ONLY") }
});
}
if (
!validToken &&
limits.absoluteRate.register.enabled &&
(await await User.count({ where: { created_at: MoreThan(new Date(Date.now() - limits.absoluteRate.register.window)) } })) >=
limits.absoluteRate.register.limit
) {
console.log(
yellow(
`[REGISTER] Global register rate limit exceeded for ${getIpAdress(req)}: ${
process.env.LOG_SENSITIVE ? req.body.email : "<email redacted>"
}, ${req.body.username}, ${req.body.invite ?? "No invite given"}`
)
);
let oldest = await User.findOne({
where: { created_at: MoreThan(new Date(Date.now() - limits.absoluteRate.register.window)) },
order: { created_at: "ASC" }
});
if (!oldest) {
console.warn(
red(
`[REGISTER/WARN] Global rate limits exceeded, but no oldest user found. This should not happen. Did you misconfigure the limits?`
)
);
} else {
let retryAfterSec = Math.ceil(
(oldest!.created_at.getTime() - new Date(Date.now() - limits.absoluteRate.register.window).getTime()) / 1000
);
return res
.status(429)
.set("X-RateLimit-Limit", `${limits.absoluteRate.register.limit}`)
.set("X-RateLimit-Remaining", "0")
.set("X-RateLimit-Reset", `${(oldest!.created_at.getTime() + limits.absoluteRate.register.window) / 1000}`)
.set("X-RateLimit-Reset-After", `${retryAfterSec}`)
.set("X-RateLimit-Global", `true`)
.set("Retry-After", `${retryAfterSec}`)
.set("X-RateLimit-Bucket", `register`)
.send({ message: req.t("auth:register.TOO_MANY_REGISTRATIONS"), retry_after: retryAfterSec, global: true });
}
}
const user = await User.register({ ...body, req });
if (body.invite) {
// await to fail if the invite doesn't exist (necessary for requireInvite to work properly) (username only signups are possible)
await Invite.joinGuild(user.id, body.invite);
}
return res.json({ token: await generateToken(user.id) });
});
export default router;
/**
* POST /auth/register
* @argument { "fingerprint":"805826570869932034.wR8vi8lGlFBJerErO9LG5NViJFw", "email":"qo8etzvaf@gmail.com", "username":"qp39gr98", "password":"wtp9gep9gw", "invite":null, "consent":true, "date_of_birth":"2000-04-04", "gift_code_sku_id":null, "captcha_key":null}
*
* Field Error
* @returns { "code": 50035, "errors": { "consent": { "_errors": [{ "code": "CONSENT_REQUIRED", "message": "You must agree to Discord's Terms of Service and Privacy Policy." }]}}, "message": "Invalid Form Body"}
*
* Success 200:
* @returns {token: "OMITTED"}
*/
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