555 lines
19 KiB
TypeScript
555 lines
19 KiB
TypeScript
import { errAsync, okAsync, ResultAsync } from "neverthrow";
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import { FlowExecCtx } from "@core/flow.execution.context";
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import { hashString, verifyHash } from "@/core/hash.utils";
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import { twoFactor, twofaSessions } from "@pkg/db/schema";
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import { TwoFactor, type TwoFaSession } from "./data";
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import { and, Database, eq, gt, lt } from "@pkg/db";
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import { generateSecret, verify } from "otplib";
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import { settings } from "@core/settings";
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import type { Err } from "@pkg/result";
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import { twofaErrors } from "./errors";
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import { logger } from "@pkg/logger";
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import { Redis } from "@pkg/redis";
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import { nanoid } from "nanoid";
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type TwoFaSetup = {
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secret: string;
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lastUsedCode: string;
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tries: number;
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};
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export class TwofaRepository {
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private PENDING_KEY_PREFIX = "pending_enabling_2fa:";
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private EXPIRY_TIME = 60 * 20; // 20 mins
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private DEFAULT_BACKUP_CODES_AMT = 8;
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private MAX_SETUP_ATTEMPTS = 3;
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constructor(
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private db: Database,
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private store: Redis,
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) {}
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checkTotp(secret: string, code: string) {
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const checked = verify({ secret, token: code });
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logger.debug("TOTP check result", { checked });
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return checked;
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}
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async checkBackupCode(hash: string, code: string) {
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return verifyHash({ hash, target: code });
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}
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private getKey(userId: string) {
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if (userId.includes(this.PENDING_KEY_PREFIX)) {
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return userId;
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}
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return `${this.PENDING_KEY_PREFIX}${userId}`;
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}
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getUsers2FAInfo(
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fctx: FlowExecCtx,
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userId: string,
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returnUndefined?: boolean,
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): ResultAsync<TwoFactor | undefined, Err> {
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logger.info("Getting user 2FA info", { ...fctx, userId });
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return ResultAsync.fromPromise(
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this.db.query.twoFactor.findFirst({
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where: eq(twoFactor.userId, userId),
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}),
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() => twofaErrors.dbError(fctx, "Failed to query 2FA info"),
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).andThen((found) => {
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if (!found) {
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logger.debug("2FA info not found for user", {
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...fctx,
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userId,
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});
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if (returnUndefined) {
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return okAsync(undefined);
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}
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return errAsync(twofaErrors.notFound(fctx));
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}
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logger.info("2FA info retrieved successfully", { ...fctx, userId });
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return okAsync(found as TwoFactor);
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});
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}
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isSetupPending(
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fctx: FlowExecCtx,
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userId: string,
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): ResultAsync<boolean, Err> {
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logger.debug("Checking if 2FA setup is pending", { ...fctx, userId });
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return ResultAsync.fromPromise(
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this.store.get(this.getKey(userId)),
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() =>
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twofaErrors.dbError(
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fctx,
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"Failed to check setup pending status",
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),
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).map((found) => {
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const isPending = !!found;
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logger.debug("Setup pending status checked", {
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...fctx,
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userId,
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isPending,
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});
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return isPending;
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});
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}
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setup(fctx: FlowExecCtx, userId: string): ResultAsync<string, Err> {
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logger.info("Starting 2FA setup", { ...fctx, userId });
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return ResultAsync.fromSafePromise(
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(async () => {
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const secret = generateSecret();
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const payload = {
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secret,
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lastUsedCode: "",
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tries: 0,
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} as TwoFaSetup;
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await this.store.setex(
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this.getKey(userId),
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this.EXPIRY_TIME,
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JSON.stringify(payload),
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);
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logger.info("Created temp 2FA session", {
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...fctx,
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userId,
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expiresIn: this.EXPIRY_TIME,
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});
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return secret;
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})(),
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).mapErr(() =>
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twofaErrors.dbError(fctx, "Setting to data store failed"),
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);
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}
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verifyAndEnable2FA(
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fctx: FlowExecCtx,
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userId: string,
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code: string,
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): ResultAsync<boolean, Err> {
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logger.info("Verifying and enabling 2FA", { ...fctx, userId });
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return ResultAsync.fromPromise(
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this.store.get(this.getKey(userId)),
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() => twofaErrors.dbError(fctx, "Failed to get setup session"),
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)
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.andThen((payload) => {
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if (!payload) {
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logger.error("Setup session not found", {
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...fctx,
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userId,
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});
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return errAsync(twofaErrors.setupNotFound(fctx));
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}
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return okAsync(JSON.parse(payload) as TwoFaSetup);
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})
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.andThen((payloadObj) => {
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const key = this.getKey(userId);
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if (payloadObj.tries >= this.MAX_SETUP_ATTEMPTS) {
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logger.warn("Max setup attempts reached", {
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...fctx,
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userId,
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tries: payloadObj.tries,
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});
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return ResultAsync.fromPromise(this.store.del(key), () =>
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twofaErrors.dbError(
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fctx,
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"Failed to delete setup session",
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),
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).andThen(() =>
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errAsync(twofaErrors.maxAttemptsReached(fctx)),
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);
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}
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if (
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!this.checkTotp(payloadObj.secret, code) ||
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code === payloadObj.lastUsedCode
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) {
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logger.warn("Invalid 2FA code during setup", {
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...fctx,
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userId,
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tries: payloadObj.tries + 1,
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codeReused: code === payloadObj.lastUsedCode,
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});
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return ResultAsync.fromPromise(
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this.store.setex(
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key,
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this.EXPIRY_TIME,
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JSON.stringify({
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secret: payloadObj.secret,
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lastUsedCode: code,
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tries: payloadObj.tries + 1,
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}),
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),
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() =>
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twofaErrors.dbError(
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fctx,
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"Failed to update setup session",
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),
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).map(() => false);
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}
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logger.info("2FA code verified successfully, enabling 2FA", {
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...fctx,
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userId,
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});
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return ResultAsync.fromPromise(this.store.del(key), () =>
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twofaErrors.dbError(fctx, "Failed to delete setup session"),
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)
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.andThen(() =>
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ResultAsync.fromPromise(
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this.db
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.insert(twoFactor)
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.values({
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id: nanoid(),
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secret: payloadObj.secret,
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userId: userId,
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createdAt: new Date(),
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updatedAt: new Date(),
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})
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.execute(),
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() =>
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twofaErrors.dbError(
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fctx,
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"Failed to insert 2FA record",
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),
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),
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)
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.map(() => {
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logger.info("2FA enabled successfully", {
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...fctx,
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userId,
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});
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return true;
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});
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});
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}
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disable(fctx: FlowExecCtx, userId: string): ResultAsync<boolean, Err> {
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logger.info("Disabling 2FA", { ...fctx, userId });
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return ResultAsync.fromPromise(
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this.db
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.delete(twoFactor)
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.where(eq(twoFactor.userId, userId))
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.execute(),
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() => twofaErrors.dbError(fctx, "Failed to delete 2FA record"),
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).map((result) => {
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logger.info("2FA disabled successfully", { ...fctx, userId });
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return true;
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});
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}
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generateBackupCodes(
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fctx: FlowExecCtx,
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userId: string,
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): ResultAsync<string[], Err> {
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logger.info("Generating backup codes", { ...fctx, userId });
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return ResultAsync.fromPromise(
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this.db.query.twoFactor.findFirst({
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where: eq(twoFactor.userId, userId),
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}),
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() => twofaErrors.dbError(fctx, "Failed to query 2FA info"),
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)
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.andThen((found) => {
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if (!found) {
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logger.error("2FA not enabled for user", {
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...fctx,
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userId,
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});
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return errAsync(twofaErrors.backupCodesNotFound(fctx));
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}
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if (found.backupCodes && found.backupCodes.length) {
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logger.warn("Backup codes already generated", {
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...fctx,
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userId,
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});
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return errAsync(
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twofaErrors.backupCodesAlreadyGenerated(fctx),
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);
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}
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return okAsync(found);
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})
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.andThen(() => {
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const codes = Array.from(
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{ length: this.DEFAULT_BACKUP_CODES_AMT },
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() => nanoid(12),
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);
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logger.debug("Backup codes generated, hashing", {
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...fctx,
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userId,
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count: codes.length,
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});
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return ResultAsync.fromPromise(
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(async () => {
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const hashed = [];
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for (const code of codes) {
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const hash = await hashString(code);
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hashed.push(hash);
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}
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return { codes, hashed };
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})(),
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() =>
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twofaErrors.dbError(
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fctx,
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"Failed to hash backup codes",
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),
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).andThen(({ codes, hashed }) =>
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ResultAsync.fromPromise(
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this.db
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.update(twoFactor)
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.set({ backupCodes: hashed })
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.where(eq(twoFactor.userId, userId))
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.returning(),
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() =>
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twofaErrors.dbError(
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fctx,
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"Failed to update backup codes",
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),
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).map(() => {
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logger.info("Backup codes generated successfully", {
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...fctx,
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userId,
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});
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return codes;
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}),
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);
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});
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}
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get2FASecret(
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fctx: FlowExecCtx,
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userId: string,
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): ResultAsync<string | null, Err> {
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logger.debug("Getting 2FA secret", { ...fctx, userId });
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return ResultAsync.fromPromise(
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this.db
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.select()
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.from(twoFactor)
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.where(eq(twoFactor.userId, userId))
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.limit(1),
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() => twofaErrors.dbError(fctx, "Failed to query 2FA secret"),
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).map((result) => {
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if (!result.length) {
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logger.debug("No 2FA secret found", { ...fctx, userId });
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return null;
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}
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logger.debug("2FA secret retrieved", { ...fctx, userId });
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return result[0].secret;
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});
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}
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createSession(
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fctx: FlowExecCtx,
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params: {
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userId: string;
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sessionId: string;
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ipAddress?: string;
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userAgent?: string;
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},
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): ResultAsync<TwoFaSession, Err> {
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logger.info("Creating 2FA verification session", {
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...fctx,
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userId: params.userId,
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sessionId: params.sessionId,
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});
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return ResultAsync.fromSafePromise(
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(async () => {
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const expiryMinutes = settings.twofaSessionExpiryMinutes || 10;
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const now = new Date();
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const expiresAt = new Date(
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now.getTime() + expiryMinutes * 60 * 1000,
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);
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return { expiresAt, now, params };
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})(),
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).andThen(({ expiresAt, now, params }) =>
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ResultAsync.fromPromise(
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this.db
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.insert(twofaSessions)
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.values({
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id: nanoid(),
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userId: params.userId,
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sessionId: params.sessionId,
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verificationToken: nanoid(32),
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status: "pending",
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attempts: 0,
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maxAttempts: 5,
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expiresAt,
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createdAt: now,
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ipAddress: params.ipAddress,
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userAgent: params.userAgent,
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})
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.returning(),
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() => twofaErrors.dbError(fctx, "Failed to create 2FA session"),
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).map(([session]) => {
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logger.info("2FA verification session created", {
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...fctx,
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sessionId: session.id,
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userId: params.userId,
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});
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return session as TwoFaSession;
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}),
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);
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}
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getSessionByToken(
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fctx: FlowExecCtx,
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token: string,
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): ResultAsync<TwoFaSession | null, Err> {
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logger.debug("Getting 2FA session by token", { ...fctx });
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return ResultAsync.fromPromise(
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this.db
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.select()
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.from(twofaSessions)
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.where(
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and(
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eq(twofaSessions.verificationToken, token),
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gt(twofaSessions.expiresAt, new Date()),
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),
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)
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.limit(1),
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() => twofaErrors.dbError(fctx, "Failed to query 2FA session"),
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).map((result) => {
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if (!result.length) {
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logger.warn("2FA session not found or expired", { ...fctx });
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return null;
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}
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logger.debug("2FA session found", {
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...fctx,
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sessionId: result[0].id,
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});
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return result[0] as TwoFaSession;
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});
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}
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updateSession(
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fctx: FlowExecCtx,
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id: string,
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updates: Partial<
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Pick<
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TwoFaSession,
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"status" | "attempts" | "verifiedAt" | "codeUsed"
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>
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>,
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): ResultAsync<TwoFaSession, Err> {
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logger.debug("Updating 2FA session", {
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...fctx,
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sessionId: id,
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updates,
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});
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return ResultAsync.fromPromise(
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this.db
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.update(twofaSessions)
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.set(updates)
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.where(eq(twofaSessions.id, id))
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.returning(),
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() => twofaErrors.dbError(fctx, "Failed to update 2FA session"),
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).andThen(([session]) => {
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if (!session) {
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logger.error("2FA session not found for update", {
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...fctx,
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sessionId: id,
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});
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return errAsync(twofaErrors.sessionNotFoundById(fctx));
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}
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logger.debug("2FA session updated successfully", {
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...fctx,
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sessionId: id,
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});
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return okAsync(session as TwoFaSession);
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});
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}
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incrementAttempts(
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fctx: FlowExecCtx,
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id: string,
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): ResultAsync<TwoFaSession, Err> {
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logger.debug("Incrementing session attempts", {
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...fctx,
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sessionId: id,
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});
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return ResultAsync.fromPromise(
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this.db.query.twofaSessions.findFirst({
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where: eq(twofaSessions.id, id),
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columns: { id: true, attempts: true },
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}),
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() =>
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twofaErrors.dbError(
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fctx,
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"Failed to query session for increment",
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),
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)
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.andThen((s) => {
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if (!s) {
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logger.error("Session not found for increment", {
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...fctx,
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sessionId: id,
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});
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return errAsync(twofaErrors.sessionNotFoundById(fctx));
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}
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return okAsync(s);
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})
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.andThen((s) =>
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ResultAsync.fromPromise(
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this.db
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.update(twofaSessions)
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.set({ attempts: s.attempts + 1 })
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.where(eq(twofaSessions.id, id))
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.returning(),
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() =>
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twofaErrors.dbError(
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fctx,
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"Failed to increment attempts",
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),
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).andThen(([session]) => {
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if (!session) {
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logger.error("Session not found after increment", {
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...fctx,
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sessionId: id,
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});
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return errAsync(twofaErrors.sessionNotFoundById(fctx));
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}
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logger.warn("Failed verification attempt", {
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...fctx,
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sessionId: session.id,
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attempts: session.attempts,
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});
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return okAsync(session as TwoFaSession);
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}),
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);
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}
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cleanupExpiredSessions(fctx: FlowExecCtx): ResultAsync<number, Err> {
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logger.info("Cleaning up expired 2FA sessions", { ...fctx });
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return ResultAsync.fromPromise(
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this.db
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.delete(twofaSessions)
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.where(lt(twofaSessions.expiresAt, new Date())),
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() =>
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twofaErrors.dbError(fctx, "Failed to cleanup expired sessions"),
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).map((result) => {
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const count = result.length || 0;
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logger.info("Expired sessions cleaned up", { ...fctx, count });
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return count;
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});
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}
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}
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