86 lines
3.0 KiB
TypeScript
86 lines
3.0 KiB
TypeScript
/*
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Copyright 2023 New Vector Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import { useEffect, useMemo } from "react";
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import { setLocalStorageItem, useLocalStorage } from "../useLocalStorage";
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import { useClient } from "../ClientContext";
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import { useUrlParams } from "../UrlParams";
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import { widget } from "../widget";
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export const getRoomSharedKeyLocalStorageKey = (roomId: string): string =>
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`room-shared-key-${roomId}`;
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const useInternalRoomSharedKey = (roomId: string): string | null => {
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const key = getRoomSharedKeyLocalStorageKey(roomId);
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const roomSharedKey = useLocalStorage(key)[0];
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return roomSharedKey;
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};
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/**
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* Extracts the room password from the URL if one is present, saving it in localstorage
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* and returning it in a tuple with the corresponding room ID from the URL.
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* @returns A tuple of the roomId and password from the URL if the URL has both,
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* otherwise [undefined, undefined]
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*/
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const useKeyFromUrl = (): [string, string] | [undefined, undefined] => {
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const urlParams = useUrlParams();
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useEffect(() => {
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if (!urlParams.password || !urlParams.roomId) return;
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if (!urlParams.roomId) return;
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setLocalStorageItem(
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// We set the Item by only using data from the url. This way we
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// make sure, we always have matching pairs in the LocalStorage,
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// as they occur in the call links.
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getRoomSharedKeyLocalStorageKey(urlParams.roomId),
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urlParams.password,
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);
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}, [urlParams]);
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return urlParams.roomId && urlParams.password
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? [urlParams.roomId, urlParams.password]
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: [undefined, undefined];
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};
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export const useRoomSharedKey = (roomId: string): string | undefined => {
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// make sure we've extracted the key from the URL first
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// (and we still need to take the value it returns because
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// the effect won't run in time for it to save to localstorage in
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// time for us to read it out again).
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const [urlRoomId, passwordFormUrl] = useKeyFromUrl();
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const storedPassword = useInternalRoomSharedKey(roomId);
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if (storedPassword) return storedPassword;
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if (urlRoomId === roomId) return passwordFormUrl;
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return undefined;
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};
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export const useIsRoomE2EE = (roomId: string): boolean | null => {
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const { client } = useClient();
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const room = useMemo(() => client?.getRoom(roomId) ?? null, [roomId, client]);
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// For now, rooms in widget mode are never considered encrypted.
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// In the future, when widget mode gains encryption support, then perhaps we
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// should inspect the e2eEnabled URL parameter here?
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return useMemo(
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() => widget === null && (room === null || !room.getCanonicalAlias()),
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[room],
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);
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};
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