forked from CringeStudios/element-desktop
8754fa5fa2
* Support authenticated media downloads in Desktop too We can't use service workers for a variety of reasons/errors, so we instead intercept HTTP(S) requests from the renderer process. With a bit of help from the IPC channels, we're able to emulate what the Element Web ServiceWorker does. The IPC channel is considered "safe" for transmitting sensitive details like the user access token: if we can't trust the IPC, we can't trust much of anything. This is unlike the `postMessage` API in a web browser where browser extensions may be listening: we don't have extensions in this environment. * Remove unused import * Appease the linter
58 lines
1.7 KiB
TypeScript
58 lines
1.7 KiB
TypeScript
/*
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Copyright 2018, 2019, 2021 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 { ipcRenderer, contextBridge, IpcRendererEvent } from "electron";
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// Expose only expected IPC wrapper APIs to the renderer process to avoid
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// handing out generalised messaging access.
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const CHANNELS = [
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"app_onAction",
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"before-quit",
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"check_updates",
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"install_update",
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"ipcCall",
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"ipcReply",
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"loudNotification",
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"preferences",
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"seshat",
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"seshatReply",
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"setBadgeCount",
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"update-downloaded",
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"userDownloadCompleted",
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"userDownloadAction",
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"openDesktopCapturerSourcePicker",
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"userAccessToken",
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"serverSupportedVersions",
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];
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contextBridge.exposeInMainWorld("electron", {
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on(channel: string, listener: (event: IpcRendererEvent, ...args: any[]) => void): void {
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if (!CHANNELS.includes(channel)) {
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console.error(`Unknown IPC channel ${channel} ignored`);
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return;
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}
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ipcRenderer.on(channel, listener);
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},
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send(channel: string, ...args: any[]): void {
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if (!CHANNELS.includes(channel)) {
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console.error(`Unknown IPC channel ${channel} ignored`);
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return;
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}
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ipcRenderer.send(channel, ...args);
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},
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});
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