mirror of
https://github.com/ente-io/ente.git
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394 lines
14 KiB
TypeScript
394 lines
14 KiB
TypeScript
import { sharedCryptoWorker } from "@/base/crypto";
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import type { B64EncryptionResult } from "@/base/crypto/libsodium";
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import { clearLocalStorage } from "@/base/local-storage";
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import log from "@/base/log";
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import { ensure } from "@/utils/ensure";
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import { VerticallyCentered } from "@ente/shared/components/Container";
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import EnteSpinner from "@ente/shared/components/EnteSpinner";
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import FormPaper from "@ente/shared/components/Form/FormPaper";
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import LinkButton from "@ente/shared/components/LinkButton";
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import {
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LoginFlowFormFooter,
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PasswordHeader,
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VerifyingPasskey,
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sessionExpiredDialogAttributes,
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} from "@ente/shared/components/LoginComponents";
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import VerifyMasterPasswordForm, {
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type VerifyMasterPasswordFormProps,
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} from "@ente/shared/components/VerifyMasterPasswordForm";
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import {
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decryptAndStoreToken,
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generateAndSaveIntermediateKeyAttributes,
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generateLoginSubKey,
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saveKeyInSessionStore,
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} from "@ente/shared/crypto/helpers";
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import { CustomError } from "@ente/shared/error";
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import {
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LS_KEYS,
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getData,
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setData,
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setLSUser,
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} from "@ente/shared/storage/localStorage";
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import {
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getToken,
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isFirstLogin,
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setIsFirstLogin,
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} from "@ente/shared/storage/localStorage/helpers";
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import {
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SESSION_KEYS,
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getKey,
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removeKey,
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setKey,
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} from "@ente/shared/storage/sessionStorage";
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import type { KeyAttributes, User } from "@ente/shared/user/types";
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import { Stack } from "@mui/material";
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import { t } from "i18next";
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import { useRouter } from "next/router";
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import { useCallback, useEffect, useState } from "react";
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import { getSRPAttributes } from "../api/srp";
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import { PAGES } from "../constants/pages";
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import {
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openPasskeyVerificationURL,
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passkeyVerificationRedirectURL,
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} from "../services/passkey";
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import {
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appHomeRoute,
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stashRedirect,
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unstashRedirect,
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} from "../services/redirect";
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import { checkSessionValidity } from "../services/session";
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import {
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configureSRP,
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generateSRPSetupAttributes,
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loginViaSRP,
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} from "../services/srp";
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import type { PageProps } from "../types/page";
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import type { SRPAttributes } from "../types/srp";
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const Page: React.FC<PageProps> = ({ appContext }) => {
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const { logout, showNavBar, setDialogBoxAttributesV2 } = appContext;
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const [srpAttributes, setSrpAttributes] = useState<SRPAttributes>();
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const [keyAttributes, setKeyAttributes] = useState<KeyAttributes>();
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const [user, setUser] = useState<User>();
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const [passkeyVerificationData, setPasskeyVerificationData] = useState<
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{ passkeySessionID: string; url: string } | undefined
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>();
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const [sessionValidityCheck, setSessionValidityCheck] = useState<
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Promise<void> | undefined
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>();
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const router = useRouter();
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const validateSession = useCallback(async () => {
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const showSessionExpiredDialog = () =>
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setDialogBoxAttributesV2(sessionExpiredDialogAttributes(logout));
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try {
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const session = await checkSessionValidity();
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switch (session.status) {
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case "invalid":
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showSessionExpiredDialog();
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break;
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case "valid":
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break;
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case "validButPasswordChanged":
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setData(
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LS_KEYS.KEY_ATTRIBUTES,
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session.updatedKeyAttributes,
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);
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setData(
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LS_KEYS.SRP_ATTRIBUTES,
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session.updatedSRPAttributes,
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);
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// Set a flag that causes new interactive key attributes to
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// be generated.
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setIsFirstLogin(true);
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// This should be a rare occurence, instead of building the
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// scaffolding to update all the in-memory state, just
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// reload everything.
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window.location.reload();
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}
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} catch (e) {
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// Ignore errors since we shouldn't be logging the user out for
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// potentially transient issues.
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log.warn("Ignoring error when determining session validity", e);
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}
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}, [setDialogBoxAttributesV2, logout]);
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useEffect(() => {
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const main = async () => {
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const user: User = getData(LS_KEYS.USER);
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if (!user?.email) {
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router.push("/");
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return;
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}
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setUser(user);
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let key = getKey(SESSION_KEYS.ENCRYPTION_KEY);
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const electron = globalThis.electron;
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if (!key && electron) {
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try {
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key = await electron.masterKeyB64();
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} catch (e) {
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log.error("Failed to read master key from safe storage", e);
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}
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if (key) {
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await saveKeyInSessionStore(
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SESSION_KEYS.ENCRYPTION_KEY,
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key,
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true,
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);
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}
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}
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const token = getToken();
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if (key && token) {
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router.push(appHomeRoute);
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return;
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}
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const kekEncryptedAttributes: B64EncryptionResult = getKey(
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SESSION_KEYS.KEY_ENCRYPTION_KEY,
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);
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const keyAttributes: KeyAttributes = getData(
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LS_KEYS.KEY_ATTRIBUTES,
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);
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const srpAttributes: SRPAttributes = getData(
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LS_KEYS.SRP_ATTRIBUTES,
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);
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if (token) {
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setSessionValidityCheck(validateSession());
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}
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if (kekEncryptedAttributes && keyAttributes) {
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removeKey(SESSION_KEYS.KEY_ENCRYPTION_KEY);
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const cryptoWorker = await sharedCryptoWorker();
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const kek = await cryptoWorker.decryptB64(
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kekEncryptedAttributes.encryptedData,
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kekEncryptedAttributes.nonce,
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kekEncryptedAttributes.key,
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);
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const key = await cryptoWorker.decryptB64(
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keyAttributes.encryptedKey,
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keyAttributes.keyDecryptionNonce,
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kek,
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);
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useMasterPassword(key, kek, keyAttributes);
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return;
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}
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if (keyAttributes) {
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if (
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(!user?.token && !user?.encryptedToken) ||
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(keyAttributes && !keyAttributes.memLimit)
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) {
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clearLocalStorage();
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router.push("/");
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return;
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}
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setKeyAttributes(keyAttributes);
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return;
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}
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if (srpAttributes) {
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setSrpAttributes(srpAttributes);
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} else {
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router.push("/");
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}
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};
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main();
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showNavBar(true);
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}, []);
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// TODO: ^ validateSession is a dependency, but add that only after we've
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// wrapped items from the callback (like logout) in useCallback too.
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const getKeyAttributes: VerifyMasterPasswordFormProps["getKeyAttributes"] =
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async (kek: string) => {
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try {
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// Currently the page will get reloaded if any of the attributes
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// have changed, so we don't need to worry about the kek having
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// been generated using stale credentials. This await on the
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// promise is here to only ensure we're done with the check
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// before we let the user in.
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if (sessionValidityCheck) await sessionValidityCheck;
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const cryptoWorker = await sharedCryptoWorker();
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const {
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keyAttributes,
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encryptedToken,
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token,
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id,
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twoFactorSessionID,
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passkeySessionID,
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} = await loginViaSRP(ensure(srpAttributes), kek);
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setIsFirstLogin(true);
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if (passkeySessionID) {
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const sessionKeyAttributes =
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await cryptoWorker.generateKeyAndEncryptToB64(kek);
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setKey(
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SESSION_KEYS.KEY_ENCRYPTION_KEY,
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sessionKeyAttributes,
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);
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const user = getData(LS_KEYS.USER);
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await setLSUser({
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...user,
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passkeySessionID,
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isTwoFactorEnabled: true,
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isTwoFactorPasskeysEnabled: true,
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});
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stashRedirect("/");
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const url =
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passkeyVerificationRedirectURL(passkeySessionID);
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setPasskeyVerificationData({ passkeySessionID, url });
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openPasskeyVerificationURL({ passkeySessionID, url });
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throw Error(CustomError.TWO_FACTOR_ENABLED);
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} else if (twoFactorSessionID) {
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const sessionKeyAttributes =
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await cryptoWorker.generateKeyAndEncryptToB64(kek);
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setKey(
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SESSION_KEYS.KEY_ENCRYPTION_KEY,
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sessionKeyAttributes,
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);
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const user = getData(LS_KEYS.USER);
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await setLSUser({
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...user,
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twoFactorSessionID,
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isTwoFactorEnabled: true,
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});
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router.push(PAGES.TWO_FACTOR_VERIFY);
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throw Error(CustomError.TWO_FACTOR_ENABLED);
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} else {
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const user = getData(LS_KEYS.USER);
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await setLSUser({
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...user,
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token,
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encryptedToken,
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id,
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isTwoFactorEnabled: false,
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});
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if (keyAttributes)
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setData(LS_KEYS.KEY_ATTRIBUTES, keyAttributes);
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return keyAttributes;
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}
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} catch (e) {
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if (
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e instanceof Error &&
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e.message != CustomError.TWO_FACTOR_ENABLED
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) {
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log.error("getKeyAttributes failed", e);
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}
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throw e;
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}
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};
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const useMasterPassword: VerifyMasterPasswordFormProps["callback"] = async (
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key,
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kek,
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keyAttributes,
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passphrase,
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) => {
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try {
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if (isFirstLogin() && passphrase) {
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await generateAndSaveIntermediateKeyAttributes(
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passphrase,
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keyAttributes,
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key,
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);
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}
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await saveKeyInSessionStore(SESSION_KEYS.ENCRYPTION_KEY, key);
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await decryptAndStoreToken(keyAttributes, key);
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try {
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let srpAttributes: SRPAttributes | null = getData(
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LS_KEYS.SRP_ATTRIBUTES,
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);
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if (!srpAttributes && user) {
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srpAttributes = await getSRPAttributes(user.email);
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if (srpAttributes) {
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setData(LS_KEYS.SRP_ATTRIBUTES, srpAttributes);
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}
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}
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log.debug(() => `userSRPSetupPending ${!srpAttributes}`);
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if (!srpAttributes) {
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const loginSubKey = await generateLoginSubKey(kek);
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const srpSetupAttributes =
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await generateSRPSetupAttributes(loginSubKey);
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await configureSRP(srpSetupAttributes);
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}
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} catch (e) {
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log.error("migrate to srp failed", e);
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}
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router.push(unstashRedirect() ?? appHomeRoute);
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} catch (e) {
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log.error("useMasterPassword failed", e);
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}
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};
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if (!keyAttributes && !srpAttributes) {
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return (
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<VerticallyCentered>
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<EnteSpinner />
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</VerticallyCentered>
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);
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}
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if (passkeyVerificationData) {
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// We only need to handle this scenario when running in the desktop app
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// because the web app will navigate to Passkey verification URL.
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// However, still we add an additional `globalThis.electron` check to
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// show a spinner. This prevents the VerifyingPasskey component from
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// being disorientingly shown for a fraction of a second as the redirect
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// happens on the web app.
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//
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// See: [Note: Passkey verification in the desktop app]
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if (!globalThis.electron) {
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return (
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<VerticallyCentered>
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<EnteSpinner />
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</VerticallyCentered>
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);
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}
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return (
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<VerifyingPasskey
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email={user?.email}
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passkeySessionID={passkeyVerificationData?.passkeySessionID}
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onRetry={() =>
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openPasskeyVerificationURL(passkeyVerificationData)
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}
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{...{ logout, setDialogBoxAttributesV2 }}
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/>
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);
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}
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// TODO: Handle the case when user is not present, or exclude that
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// possibility using types.
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return (
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<VerticallyCentered>
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<FormPaper style={{ minWidth: "320px" }}>
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<PasswordHeader>{user?.email ?? ""}</PasswordHeader>
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<VerifyMasterPasswordForm
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buttonText={t("VERIFY_PASSPHRASE")}
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callback={useMasterPassword}
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user={user}
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keyAttributes={keyAttributes}
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getKeyAttributes={getKeyAttributes}
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srpAttributes={srpAttributes}
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/>
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<LoginFlowFormFooter>
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<Stack direction="row" justifyContent="space-between">
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<LinkButton onClick={() => router.push(PAGES.RECOVER)}>
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{t("FORGOT_PASSWORD")}
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</LinkButton>
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<LinkButton onClick={logout}>
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{t("CHANGE_EMAIL")}
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</LinkButton>
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</Stack>
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</LoginFlowFormFooter>
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</FormPaper>
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</VerticallyCentered>
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);
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};
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export default Page;
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