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Ensure outgoing filesize limit considers padding and encryption

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trevor-signal 2024-08-12 12:44:50 -04:00 committed by GitHub
parent 8166024700
commit 85b130a12d
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1 changed files with 6 additions and 4 deletions
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10
ts/util/processAttachment.ts
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@ -21,6 +21,7 @@ import { handleVideoAttachment } from './handleVideoAttachment';
import { isHeic, stringToMIMEType } from '../types/MIME';
import { ToastType } from '../types/Toast';
import { isImageTypeSupported, isVideoTypeSupported } from './GoogleChrome';
import { getAttachmentCiphertextLength } from '../AttachmentCrypto';
export async function processAttachment(
file: File,
@ -79,10 +80,11 @@ export async function processAttachment(
function isAttachmentSizeOkay(attachment: Readonly<AttachmentType>): boolean {
const limitKb = getMaximumOutgoingAttachmentSizeInKb(getRemoteConfigValue);
// this needs to be cast properly
// eslint-disable-next-line @typescript-eslint/ban-ts-comment
// @ts-ignore
if ((attachment.data.byteLength / KIBIBYTE).toFixed(4) >= limitKb) {
const limitBytes =
getMaximumOutgoingAttachmentSizeInKb(getRemoteConfigValue) * KIBIBYTE;
const paddedAndEncryptedSize = getAttachmentCiphertextLength(attachment.size);
if (paddedAndEncryptedSize > limitBytes) {
window.reduxActions.toast.showToast({
toastType: ToastType.FileSize,
parameters: getRenderDetailsForLimit(limitKb),