76 lines
2.1 KiB
TypeScript
76 lines
2.1 KiB
TypeScript
// Copyright 2021 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import Crypto, { PaddedLengths } from '../textsecure/Crypto';
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import { ConversationType } from '../state/ducks/conversations';
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import { ProfileRequestDataType } from '../textsecure/WebAPI';
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import { assert } from './assert';
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import {
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arrayBufferToBase64,
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base64ToArrayBuffer,
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bytesFromString,
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} from '../Crypto';
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import { deriveProfileKeyCommitment, deriveProfileKeyVersion } from './zkgroup';
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const { encryptProfile, encryptProfileItemWithPadding } = Crypto;
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export async function encryptProfileData(
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conversation: ConversationType,
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avatarData?: ArrayBuffer
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): Promise<[ProfileRequestDataType, ArrayBuffer | undefined]> {
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const {
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aboutEmoji,
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aboutText,
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familyName,
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firstName,
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profileKey,
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uuid,
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} = conversation;
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assert(profileKey, 'profileKey');
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assert(uuid, 'uuid');
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const keyBuffer = base64ToArrayBuffer(profileKey);
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const fullName = [firstName, familyName].filter(Boolean).join('\0');
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const [
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bytesName,
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bytesAbout,
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bytesAboutEmoji,
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encryptedAvatarData,
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] = await Promise.all([
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encryptProfileItemWithPadding(
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bytesFromString(fullName),
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keyBuffer,
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PaddedLengths.Name
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),
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aboutText
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? encryptProfileItemWithPadding(
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bytesFromString(aboutText),
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keyBuffer,
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PaddedLengths.About
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)
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: null,
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aboutEmoji
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? encryptProfileItemWithPadding(
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bytesFromString(aboutEmoji),
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keyBuffer,
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PaddedLengths.AboutEmoji
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)
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: null,
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avatarData ? encryptProfile(avatarData, keyBuffer) : undefined,
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]);
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const profileData = {
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version: deriveProfileKeyVersion(profileKey, uuid),
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name: arrayBufferToBase64(bytesName),
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about: bytesAbout ? arrayBufferToBase64(bytesAbout) : null,
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aboutEmoji: bytesAboutEmoji ? arrayBufferToBase64(bytesAboutEmoji) : null,
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paymentAddress: window.storage.get('paymentAddress') || null,
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avatar: Boolean(avatarData),
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commitment: deriveProfileKeyCommitment(profileKey, uuid),
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};
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return [profileData, encryptedAvatarData];
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}
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