245 lines
7.6 KiB
TypeScript
245 lines
7.6 KiB
TypeScript
import { Request, Response, Router } from "express";
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import { trimSpecial, User, Snowflake, Config, defaultSettings } from "@fosscord/util";
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import bcrypt from "bcrypt";
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import { check, Email, EMAIL_REGEX, FieldErrors, Length } from "@fosscord/api";
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import "missing-native-js-functions";
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import { generateToken } from "./login";
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import { getIpAdress, IPAnalysis, isProxy } from "@fosscord/api";
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import { HTTPError } from "lambert-server";
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import { In } from "typeorm";
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const router: Router = Router();
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router.post(
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"/",
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check({
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username: new Length(String, 2, 32),
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// TODO: check min password length in config
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// prevent Denial of Service with max length of 72 chars
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password: new Length(String, 8, 72),
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consent: Boolean,
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$email: new Length(Email, 5, 100),
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$fingerprint: String,
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$invite: String,
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$date_of_birth: Date, // "2000-04-03"
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$gift_code_sku_id: String,
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$captcha_key: String
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}),
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async (req: Request, res: Response) => {
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const {
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email,
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username,
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password,
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consent,
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fingerprint,
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invite,
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date_of_birth,
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gift_code_sku_id, // ? what is this
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captcha_key
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} = req.body;
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// get register Config
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const { register, security } = Config.get();
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const ip = getIpAdress(req);
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if (register.blockProxies) {
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if (isProxy(await IPAnalysis(ip))) {
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console.log(`proxy ${ip} blocked from registration`);
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throw new HTTPError("Your IP is blocked from registration");
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}
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}
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console.log("register", req.body.email, req.body.username, ip);
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// TODO: automatically join invite
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// TODO: gift_code_sku_id?
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// TODO: check password strength
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// adjusted_email will be slightly modified version of the user supplied email -> e.g. protection against GMail Trick
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let adjusted_email = adjustEmail(email);
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// adjusted_password will be the hash of the password
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let adjusted_password = "";
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// trim special uf8 control characters -> Backspace, Newline, ...
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let adjusted_username = trimSpecial(username);
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// discriminator will be randomly generated
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let discriminator = "";
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// check if registration is allowed
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if (!register.allowNewRegistration) {
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throw FieldErrors({
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email: { code: "REGISTRATION_DISABLED", message: req.t("auth:register.REGISTRATION_DISABLED") }
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});
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}
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// check if the user agreed to the Terms of Service
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if (!consent) {
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throw FieldErrors({
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consent: { code: "CONSENT_REQUIRED", message: req.t("auth:register.CONSENT_REQUIRED") }
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});
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}
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// require invite to register -> e.g. for organizations to send invites to their employees
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if (register.requireInvite && !invite) {
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throw FieldErrors({
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email: { code: "INVITE_ONLY", message: req.t("auth:register.INVITE_ONLY") }
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});
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}
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if (email) {
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// replace all dots and chars after +, if its a gmail.com email
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if (!adjusted_email) throw FieldErrors({ email: { code: "INVALID_EMAIL", message: req.t("auth:register.INVALID_EMAIL") } });
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// check if there is already an account with this email
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const exists = await User.findOneOrFail({ email: adjusted_email }).catch((e) => {});
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if (exists) {
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throw FieldErrors({
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email: {
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code: "EMAIL_ALREADY_REGISTERED",
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message: req.t("auth:register.EMAIL_ALREADY_REGISTERED")
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}
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});
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}
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} else if (register.email.necessary) {
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throw FieldErrors({
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email: { code: "BASE_TYPE_REQUIRED", message: req.t("common:field.BASE_TYPE_REQUIRED") }
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});
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}
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if (register.dateOfBirth.necessary && !date_of_birth) {
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throw FieldErrors({
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date_of_birth: { code: "BASE_TYPE_REQUIRED", message: req.t("common:field.BASE_TYPE_REQUIRED") }
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});
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} else if (register.dateOfBirth.minimum) {
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const minimum = new Date();
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minimum.setFullYear(minimum.getFullYear() - register.dateOfBirth.minimum);
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// higher is younger
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if (date_of_birth > minimum) {
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throw FieldErrors({
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date_of_birth: {
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code: "DATE_OF_BIRTH_UNDERAGE",
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message: req.t("auth:register.DATE_OF_BIRTH_UNDERAGE", { years: register.dateOfBirth.minimum })
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}
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});
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}
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}
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if (!register.allowMultipleAccounts) {
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// TODO: check if fingerprint was eligible generated
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const exists = await User.findOne({ where: { fingerprints: In(fingerprint) } });
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if (exists) {
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throw FieldErrors({
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email: {
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code: "EMAIL_ALREADY_REGISTERED",
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message: req.t("auth:register.EMAIL_ALREADY_REGISTERED")
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}
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});
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}
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}
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if (register.requireCaptcha && security.captcha.enabled) {
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if (!captcha_key) {
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const { sitekey, service } = security.captcha;
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return res.status(400).json({
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captcha_key: ["captcha-required"],
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captcha_sitekey: sitekey,
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captcha_service: service
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});
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}
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// TODO: check captcha
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}
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// the salt is saved in the password refer to bcrypt docs
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adjusted_password = await bcrypt.hash(password, 12);
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let exists;
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// randomly generates a discriminator between 1 and 9999 and checks max five times if it already exists
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// if it all five times already exists, abort with USERNAME_TOO_MANY_USERS error
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// else just continue
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// TODO: is there any better way to generate a random discriminator only once, without checking if it already exists in the mongodb database?
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for (let tries = 0; tries < 5; tries++) {
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discriminator = Math.randomIntBetween(1, 9999).toString().padStart(4, "0");
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exists = await User.findOne({ where: { discriminator, username: adjusted_username }, select: ["id"] });
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if (!exists) break;
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}
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if (exists) {
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throw FieldErrors({
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username: {
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code: "USERNAME_TOO_MANY_USERS",
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message: req.t("auth:register.USERNAME_TOO_MANY_USERS")
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}
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});
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}
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// TODO: save date_of_birth
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// appearently discord doesn't save the date of birth and just calculate if nsfw is allowed
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// if nsfw_allowed is null/undefined it'll require date_of_birth to set it to true/false
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const user = await new User({
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created_at: new Date(),
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username: adjusted_username,
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discriminator,
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id: Snowflake.generate(),
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bot: false,
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system: false,
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desktop: false,
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mobile: false,
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premium: true,
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premium_type: 2,
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bio: "",
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mfa_enabled: false,
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verified: false,
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disabled: false,
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deleted: false,
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email: adjusted_email,
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nsfw_allowed: true, // TODO: depending on age
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public_flags: "0",
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flags: "0", // TODO: generate
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data: {
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hash: adjusted_password,
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valid_tokens_since: new Date()
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},
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settings: { ...defaultSettings, locale: req.language || "en-US" },
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fingerprints: []
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}).save();
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return res.json({ token: await generateToken(user.id) });
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}
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);
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export function adjustEmail(email: string): string | undefined {
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// body parser already checked if it is a valid email
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const parts = <RegExpMatchArray>email.match(EMAIL_REGEX);
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// @ts-ignore
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if (!parts || parts.length < 5) return undefined;
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const domain = parts[5];
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const user = parts[1];
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// TODO: check accounts with uncommon email domains
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if (domain === "gmail.com" || domain === "googlemail.com") {
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// replace .dots and +alternatives -> Gmail Dot Trick https://support.google.com/mail/answer/7436150 and https://generator.email/blog/gmail-generator
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return user.replace(/[.]|(\+.*)/g, "") + "@gmail.com";
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}
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return email;
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}
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export default router;
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/**
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* POST /auth/register
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* @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}
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*
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* Field Error
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* @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"}
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*
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* Success 200:
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* @returns {token: "OMITTED"}
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*/
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