30 lines
666 B
TypeScript
30 lines
666 B
TypeScript
// Copyright 2023 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import { unicodeSlice } from './unicodeSlice';
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const KIBIBYTE = 1024;
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const MAX_MESSAGE_BODY_BYTE_LENGTH = 2 * KIBIBYTE;
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export const MAX_BODY_ATTACHMENT_BYTE_LENGTH = 64 * KIBIBYTE;
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export function isBodyTooLong(
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body: string,
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length = MAX_MESSAGE_BODY_BYTE_LENGTH
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): boolean {
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return Buffer.byteLength(body) > length;
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}
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export function trimBody(
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body: string,
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length = MAX_MESSAGE_BODY_BYTE_LENGTH
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): string {
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const sliced = unicodeSlice(body, 0, length);
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if (sliced.length > 0) {
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return sliced;
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}
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// Failover, for degenerate cases
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return '\uFFFE';
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}
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