44 lines
1.1 KiB
TypeScript
44 lines
1.1 KiB
TypeScript
// Copyright 2020 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import type {
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AttachmentType,
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DownloadedAttachmentType,
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} from '../types/Attachment';
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import { downloadAttachment as doDownloadAttachment } from '../textsecure/downloadAttachment';
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export async function downloadAttachment(
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attachmentData: AttachmentType
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): Promise<DownloadedAttachmentType | null> {
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let migratedAttachment: AttachmentType;
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const { server } = window.textsecure;
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if (!server) {
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throw new Error('window.textsecure.server is not available!');
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}
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const { id: legacyId } = attachmentData;
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if (legacyId === undefined) {
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migratedAttachment = attachmentData;
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} else {
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migratedAttachment = {
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...attachmentData,
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cdnId: String(legacyId),
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};
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}
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let downloaded;
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try {
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downloaded = await doDownloadAttachment(server, migratedAttachment);
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} catch (error) {
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// Attachments on the server expire after 30 days, then start returning 404
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if (error && error.code === 404) {
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return null;
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}
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throw error;
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}
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return downloaded;
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}
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